CN102385396A - High-power high-accuracy double worm wheel two speed gearbox for solar photo-thermal power generation giant bracket - Google Patents
High-power high-accuracy double worm wheel two speed gearbox for solar photo-thermal power generation giant bracket Download PDFInfo
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- CN102385396A CN102385396A CN2011102694348A CN201110269434A CN102385396A CN 102385396 A CN102385396 A CN 102385396A CN 2011102694348 A CN2011102694348 A CN 2011102694348A CN 201110269434 A CN201110269434 A CN 201110269434A CN 102385396 A CN102385396 A CN 102385396A
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Abstract
The invention discloses a high-power high-accuracy double worm wheel two speed gearbox for a solar photo-thermal power generation giant bracket, which comprises a main transmission shaft, a tracking transmission system and a reset transmission system mutually and independently arranged, wherein the tracking transmission system is used for independently driving the main transmission shaft to track sunray; the reset transmission system is used for independently driving the main transmission shaft to quickly reset; and the reset speed of the reset transmission system is more than the tracking speed of the tracking transmission system. According to special requirements of a photo-thermal power generation regular tracking system, the gearbox needs to output torque by two speeds; in order to meet the characteristic that the requirements on the rotation speed in tracking and the rotation speed in zero point resetting or emergency protection are different, a way of dragging a rack sliding block by a step motor is employed in the gearbox, and a rack on a sliding block is ensured to be dragged to be engaged with or departed from a gear in proper time while gear shift for speed change is realized by using a transmission mechanism of a gear crank, so that the motor and the sliding block are protected from being damaged by jacking in maximum extent.
Description
Technical field
The present invention relates to the huge support high power of a kind of solar light-heat power-generation high precision double worm gear two-speed gearbox.
Background technology
Worm reduction gear is a kind of mechanical reduction gear commonly used, it have reduction gear ratio big, operate steadily, can self-locking, characteristics that output torque is big, used widely among various plant equipment, obtained good effect.But because the singularity of photo-thermal power generation; Accuracy requirement to tracker is very high; Need bigger ratio of gear and moment output, and the using and installing of complicated accurate control system, simultaneously the rotational speed when following the tracks of reset with zero point or the rotational speed requirement when promptly protecting different; Sense of rotation is conversion often, so common speed reduction unit can not satisfy these request for utilizations on the market.Therefore photo-thermal power generation is followed the tracks of and is all adopted hydraulic transmission mode basically at present, and its complex structure is bulky; Auxiliary device is more, owing to be operated in high pressure conditions, and very high to the material and the connected mode requirement of pipeline; The evaporating, emitting, dripping or leaking of liquid or gas phenomenon happens occasionally, and fire safety pressure is very big, and high-pressure oil pump needs time-based maintenance and failure rate higher; Difficult in maintenance, maintenance load is big, and the energy of consumption is bigger.In order to overcome hydraulicdriven these shortcomings; Press for a kind of special integrated, high-power, big retarding of following the tracks of that transmission uses to photo-thermal power generation of exploitation than, big moment output, speed change output, high precision, the bi-motor twin worm drives and two-sided axle is exported worm reducer, satisfy the demand of following photo-thermal power generation settled date tracker worm reduction gear.
Summary of the invention
For addressing the above problem, the object of the present invention is to provide a kind of special to the special-purpose huge support high power of high-power, the high-precision solar light-heat power-generation high precision double worm gear two-speed gearbox of photo-thermal power generation.
For realizing above-mentioned purpose; The huge support high power of solar light-heat power-generation of the present invention high precision double worm gear two-speed gearbox; Comprise the tracking power train of final drive shaft, separate setting and the power train that resets, wherein, the tracking power train is used for independently driving final drive shaft and follows the tracks of sunray; The power train that resets is used for independently driving final drive shaft and resets fast, and the reset speed of the power train that resets is faster than the tracking velocity of following the tracks of power train.
Further; The gear reduction ratio of the said power train that resets is less than the gear reduction ratio of said tracking power train; The motor speed of the said power train that resets is higher than the motor speed of following the tracks of power train, and the power of motor of the said power train that resets is greater than the power of motor of following the tracks of power train.
Further; Said tracking power train comprises two big worm screws of tracking that the big worm gear of the tracking that is arranged on the said final drive shaft, symmetry are equipped with in the big worm gear of the tracking left and right sides; Each is followed the tracks of and all is equipped with the tracking small gear on the big worm screw; Follow the tracks of on the small gear and all be equipped with the tracking small worm; The end of following the tracks of small worm all is connected with the tracking stepper motor, successively via following the tracks of small worm, tracking small gear, the big worm screw of tracking and following the tracks of big worm gear and come outside output power and moment, carries out pursuit movement to drive said final drive shaft after this tracking stepper motor rotation.
Further; Two one of said tracking stepper motors are turned left; Turn right for one, thus the relative reverse rotation of two said tracking small worms of drive one-level gear, and two said tracking small worms drive the relative reverse rotation of two said tracking small gears respectively; Two said tracking small gears drive the relative reverse rotation of two big worm screws of said tracking respectively, and two relative respectively reverse rotations of the big worm screw of said tracking drive the big worm gear of said tracking and rotate to same direction.
Further; The said power train that resets comprises two big worm screws that reset that the big worm gear that resets, the symmetry that are arranged on the said final drive shaft are equipped with in the big worm gear left and right sides that resets; All be equipped with the small gear that resets on each big worm screw that resets; Reset and all be equipped with the small worm that resets on the small gear; The reset end of small worm all is connected with the stepper motor that resets, and comes outside output power and moment via the small worm that resets, the small gear that resets, reset big worm screw and the big worm gear that resets successively after this tracking stepper motor rotation, carries out reseting movement to drive said final drive shaft.
Further; Two said stepper motors one that reset turn left to platform; Turn right for one, thus the relative reverse rotation of two said small worms that reset of drive one-level gear, and two said small worms that reset drive the relative reverse rotation of two said small gears that reset respectively; Two said small gears that reset drive two said relative reverse rotations of big worm screw that reset respectively, and the relative respectively reverse rotation of two said big worm screws that reset drives the said big worm gear that resets and rotates to same direction.
Further; The said lower end that resets big worm screw and follow the tracks of big worm screw all is equipped with scrambler; Scrambler is used for real-time detection and is in said rotating speed and the direction that resets big worm screw or follow the tracks of big worm screw under the work rotation status; And issue control system with the form of pulse signal, control system compares two said rotating speed and directions that reset big worm screw or two big worm screws of said tracking in real time, and according to the difference of two said big worm screw rotating speeds that reset; The rotating speed of two said stepper motors that reset of fine setting drives main axis rotation to guarantee two said big worm screws that reset with identical rotating speed in real time; Perhaps, finely tune the rotating speed of two said tracking stepper motors in real time, drive main axis rotation with identical rotating speed to guarantee two big worm screws of said tracking according to the difference of two big worm screw rotating speeds of said tracking.
Further; Said final drive shaft and follow the tracks of power train, resetting is provided with speed change topworks between the power train; Speed change topworks comprises that slip cap is contained in the change gear on the said final drive shaft, and it axially is provided with spline the outside surface upper edge at said final drive shaft middle part, and the endoporus of this change gear is provided with spline; Change gear is installed in the spline of said final drive shaft through spline fitted, and spline can horizontally slip in spline; Change gear is arranged on the big worm gear of said tracking and resets between the big worm gear, is provided with connecting portion and the gear teeth suitable with said change gear on the big worm gear of said tracking and the big worm gear that resets; Change gear can horizontally slip, and makes change gear independently connect said tracking power train and final drive shaft, realizes that said final drive shaft carries out pursuit movement; Perhaps change gear independently connects said power train and the final drive shaft of resetting, and realizes that said final drive shaft carries out reseting movement.
Further; Said speed change topworks also comprises dragging motor, slide block, pinion wheel and shift fork, and the output shaft of dragging motor is provided with and affects leading screw, and this affects, and engage sleeves is equipped with slide block on the leading screw; Also be equipped with the guide rail parallel on the slide block with affecting leading screw; One side of slide block is provided with tooth bar, the installation that matches with pinion wheel of this tooth bar, and the number of teeth on the tooth bar can drive pinion wheel rotation 120 degree; The opposite side of pinion wheel is equipped with the shift fork slide block through the gear teeth; This shift fork slide block set is contained in and affects on the shift fork slide block guide rail that leading screw laterally arranges; On the shift fork slide block shift fork is installed, this shift fork is installed on the axle journal of said change gear, horizontally slips to stir said change gear; Wherein, Pinion wheel is provided with crank, and the end of crank is provided with crank axle, is hinged with expansion link on the outer end of crank axle; The other end of expansion link is hinged on the fixed cap; Be provided with spring in the expansion link, this spring has different length variations when crank rotates to diverse location, and is that pinion wheel provides the extra power source when pinion wheel and slide block tooth bar take off tooth.
Further; Said crank can only rotate positive and negative 90 degree at third quadrant and four-quadrant; Saidly affect leading screw to promote said slide block to slide to the left or to the right, drive said pinion wheel rotation 120 degree backs and break away from said pinion wheel, after this said pinion wheel is driven by the spring that is provided with in the said expansion link; Accomplish 60 remaining degree rotations; Drive the big worm gear disengaging of said change gear and said tracking, mesh, perhaps drive said change gear and the said big worm gear that resets and break away from, mesh with the big worm gear of said tracking, to accomplish gear shifting operation with the said big worm gear that resets.
Further; Said reductor also comprises control system, sun position sensor, weather environment sensor; Sun position sensor is used to respond to the change information of sunray irradiating angle on longitudinal, and the weather environment sensor is used to monitor Weather information, and these information all are sent to control system; Control system is used for carrying out high precision tracking, normally reset, promptly returning or automatic gear shifting speed changing to following the tracks of stepper motor, the stepper motor that resets, dragging motor conveying control command.
Further; Be provided with in the said speed change topworks and follow the tracks of travel switch and return stroke switch, the said change gear gear teeth are smoothly in the connecting portion of the big worm gear of the said tracking of entering, and with its gear teeth tight engagement; It is closed to promote to follow the tracks of travel switch simultaneously, sends engagement signal to said control system; The said change gear gear teeth get in the connecting portion of the said big worm gear that resets smoothly, and with its gear teeth tight engagement, promote the return stroke switch closure simultaneously, send engagement signal to said control system.
The present invention is according to the specific (special) requirements of photo-thermal power generation settled date tracker; Reductor need be with two kinds of speed output torques; Rotational speed in order satisfy to follow the tracks of with reset zero point or rotational speed requirement different features when promptly protecting, the present invention adopts stepper motor to drag the mode of rack slide, when realizing shift speed change with the drive mechanism of gear crank; Guarantee again to drag on the slide block tooth bar in time with gearing mesh or disengaging, protection motor and slide block are not damaged by dieback.
Description of drawings
Fig. 1 is a cut-open view of the present invention;
Fig. 2 is a right view of the present invention;
Fig. 3 be among Fig. 1 B-B to cut-open view;
Fig. 4 is a vertical view of the present invention;
Fig. 5 be among Fig. 1 A-A to cut-open view;
Fig. 6 is the expansion link structural representation;
Fig. 7 is the expansion link cut-open view;
Fig. 8 is a C portion enlarged drawing among Fig. 1;
Fig. 9 is a D portion enlarged drawing among Fig. 1;
Figure 10 is an E portion enlarged drawing among Fig. 1;
Figure 11 is a F portion enlarged drawing among Fig. 2;
Figure 12 is a G portion enlarged drawing among Fig. 4;
Figure 13 is a H portion enlarged drawing among Fig. 4.
Embodiment
Below, with reference to accompanying drawing, the present invention is more comprehensively explained, exemplary embodiment of the present invention has been shown in the accompanying drawing.Yet the present invention can be presented as multiple multi-form, and should not be construed as the exemplary embodiment that is confined to narrate here.And provide these embodiment, thus make the present invention comprehensively with complete, and scope of the present invention is fully conveyed to those of ordinary skill in the art.
In order to be easy to explanation, here can use such as " on ", D score " left side " space relative terms such as " right sides ", be used for element shown in the key diagram or characteristic relation with respect to another element or characteristic.It should be understood that except the orientation shown in the figure spatial terminology is intended to comprise the different azimuth of device in using or operating.For example, if the device among the figure is squeezed, be stated as the element that is positioned at other elements or characteristic D score will be positioned at other elements or characteristic " on ".Therefore, the exemplary term D score can comprise upper and lower orientation both.Device can otherwise be located (revolve turn 90 degrees or be positioned at other orientation), and the relative explanation in used here space can correspondingly be explained.
Extremely shown in Figure 13 like Fig. 1; The huge support high power of solar light-heat power-generation of the present invention high precision double worm gear two-speed gearbox; Comprise the tracking power train of final drive shaft 2000, separate setting and the power train that resets; Wherein, the tracking power train independently drives final drive shaft 2000 and follows the tracks of sunray, and the power train that perhaps resets independently drives final drive shaft 2000 and resets fast; The gear reduction ratio of the power train that resets is less than the gear reduction ratio of following the tracks of power train, and the reset speed of the power train that resets is faster than the tracking velocity of following the tracks of power train.
Among the present invention, be divided into high precision tracking, normally reset and promptly return, three kinds of principles of fluid drive.
One, follow the tracks of structure, the high precision tracking state of power train:
1, follows the tracks of power train and comprise that the big worm gear of the tracking that is arranged on the final drive shaft 2,000 2101, symmetry are equipped with at two that follow the tracks of big worm gear 2101 left and right sides and follow the tracks of big worm screws 3001; Each is followed the tracks of all to be equipped with on the big worm screw 3001 and follows the tracks of small gear 4101; The other end is equipped with and detects scrambler 08; Follow the tracks of all to be equipped with on the small gear 4101 and follow the tracks of small worm 4103; The end of following the tracks of small worm 4103 all is connected with and follows the tracks of stepper motor 01, follows the tracks of stepper motor 02; Successively via following the tracks of small worm 4103, tracking small gear 4101, the big worm screw 3001 of tracking and following the tracks of big worm gear 2101 outside output power and moments, carry out pursuit movement after tracking stepper motor 01,02 rotation of tracking stepper motor with driving final drive shaft 2000.
2, when control system get into to start tracking time or solar irradiation and is mapped on the sun position sensor, system need get into tracking mode.Sensor is accepted the irradiation of light, the variation of induction sunray irradiating angle on longitudinal, and to control circuit output angle deviation signal.Control circuit is accepted the angular deviation signal, and after handling through control system, confirms the control signal of output, divides two-way to output to two tracking stepper motors 01, follow the tracks of on the stepper motor 02, drives and follows the tracks of the stepper motor rotation.Two one of tracking stepper motors are turned left, turn right for one, thus two tracking small worms, the 4103 relative reverse rotations of drive one-level gear.
3, two tracking small worms 4103 drive two respectively and follow the tracks of small gear 4101 relative reverse rotations, follow the tracks of small gears 4101 for two and drive two big worm screw 3001 relative reverse rotations of tracking respectively.
4, two big worm gears 2101 of the big worm screw 3001 respectively relative reverse rotations drive tracking of tracking rotate to same direction, and simultaneously, whether system validation change gear 2120 meshes with the big worm gear 2101 of tracking; If not engagement, control system will be sent signal to dragging motor 05, and dragging motor drives topworks's action; Change gear 2120 is moved to following the tracks of big worm gear 2101 directions, and, rotate along tracking direction with certain speed to following the tracks of stepper motor 01, following the tracks of stepper motor 02 transmission pulse signal; Guarantee that change gear 2120 gear teeth get in the gear teeth of following the tracks of big worm gear 2101 smoothly; And with its tight engagement, promote to follow the tracks of travel switch 07 closure simultaneously, export engagement signal to system; After receiving this signal; System to following the tracks of with stepper motor 01, following the tracks of and send normal tracking rotating signal with stepper motor 02, drives final drive shaft 2000 rotations by change gear immediately, thereby accomplishes the output of power and moment.
Follow the tracks of big worm screw 3001 lower ends for two scrambler 08 is housed respectively; Two rotating speed and directions of following the tracks of big worm screw 3001 of scrambler 08 real-time detection; And issue control system with the form of pulse signal, control system compares two rotating speed and directions of following the tracks of big worm screws 3001 in real time, and according to two big differences of following the tracks of worm screw 3001 rotating speeds; The rotating speed of two stepper motors of fine setting is followed the tracks of big worm screw 3001 with same rotational speed drive main axis rotation to guarantee two in real time.Eliminate two nonsynchronous phenomenons of worm screw rotating speed that produce because of the gap between motor gear box and the worm and gear in the transmission process.
Two, reset the structure of power train, normally reset and urgent return state
1, the power train that resets comprises the big worm gear 2100 that resets that is arranged on the final drive shaft 2000, two big worm screws 3000 that reset that symmetry is equipped with in big worm gear 2100 left and right sides that reset; All be equipped with the small gear 4100 that resets on each big worm screw 3000 that resets; Reset and all be equipped with the small worm 4102 that resets on the small gear 4100; Resetting, the end of small worm 4102 all is connected with the stepper motor 03 that resets, stepper motor 04 resets; Reset after stepper motor 03, stepper motor 04 rotation that resets successively via the small worm 4102 that resets, the small gear 4100 that resets, the reset big worm screw 3000 and big worm gear 2100 outside output power and the moments that reset, carry out reseting movement with driving final drive shaft 2000.
Reset stepper motor 03, the stepper motor 04 1 that resets turns left to platform; Turn right for one; Thereby drive two small worm 4102 relative reverse rotations that reset of one-level gear; Two small worms 4102 that reset drive two little snail 4100 relative reverse rotations that reset respectively, and two small gears 4100 that reset drive two big worm screw 3000 relative reverse rotations that reset respectively, and two relative respectively reverse rotations of the big worm screw 3000 that resets drive the big worm gear 2100 that resets and rotate to same direction.
2, normally reset: followed the tracks of when one day when finishing; In order to guarantee that second day normal tracking moves; Settled date follows the tracks of mounting system and need turn back to preset protective position at zero point; Be the reflecting glass face vertically downward so that safeguard and cleaning, also prevent that dust from dropping to surface and the birds animal of the catoptron destruction to glass surface simultaneously.In the time of need returning, system will confirm that two tracking stepper motors 01, tracking stepper motor 02 are in halted state, otherwise make it stop.Send signal to dragging motor 05 then; Dragging motor rotation also drives topworks's action, drive change gear 2120 and follow the tracks of big worm gear 2101 and break away from engagement, simultaneity factor divide two road directions reset stepper motor 03, the stepper motor 04 that resets sends control signal makes it with certain rotating speed rotation; The drive direction rotation that big worm gear 2100 resets to needs that resets; Guarantee that change gear 2120 gear teeth get in the gear teeth of the big worm gear 2100 that resets smoothly, and with its tight engagement, promote return stroke switch 06 closure simultaneously; Export engagement signal to system; After receiving this signal, system is immediately to resetting with stepper motor 03, resetting and send high speed rotating instruction with stepper motor 04, drive the settled date follow the tracks of support fast to zero point protective position move.After arriving null position, system's automatic cut-off motor power supply is in protection and armed state.
The power train that resets is compared with following the tracks of power train, and in the power train that resets: the reduction gear ratio of gear is little, and rotating speed of motor is high, power is big, so the speed returned of resetting is very fast.
3, urgent return state: when running into diastrous weather such as strong wind and heavy rain sand and dust, be not destroyed in order to protect mirror glass and support, the settled date follows the tracks of mounting system and need promptly reset.When the weather environment sensor will be sent to control system for information about; Control system promptly enters into return state: if be in the tracking tense, at first order is followed the tracks of stepper motor 01, is followed the tracks of stepper motor 02 shutdown, sends signal to dragging motor 05 then; The dragging motor rotation also drives topworks's action; Drive change gear 2120 and follow the tracks of big worm gear 2101 and break away from engagement, simultaneously and big worm gear 2100 engagements that reset, its implementation is with identical when normally resetting.After arriving null position, system's automatic cut-off motor power supply is in urgent protection and armed state.The same day cyclostrophic good after, control system will be sent instruction to topworks, recover tracking mode automatically, its implementation is identical during with the high precision tracking state.
Two big worm screw 3000 lower ends that reset are equipped with scrambler 09 respectively; Rotating speed and the direction of two big worm screws 3000 that reset of scrambler 09 real-time detection; And issue control system with the form of pulse signal, control system compares rotating speed and the direction of two big worm screws 3000 that reset in real time, and according to the difference of two big worm screw 3000 rotating speeds that reset; The rotating speed of two stepper motors 03,04 that reset of fine setting drives main axis rotation to guarantee two big worm screws 3000 that reset with same rotational speed in real time.Eliminate two nonsynchronous phenomenons of worm screw rotating speed that produce because of the gap between motor gear box and the worm and gear in the transmission process.
Three, the structure of speed change topworks, self-shifting utilization principle:
1, final drive shaft 2000 and follow the tracks of power train, resetting is provided with speed change topworks between the power train; Speed change topworks comprises that slip cap is contained in change gear 2120, dragging motor 05, slide block 5111, pinion wheel 5120 and the shift fork 2121 on the final drive shaft 2000; It axially is provided with spline the outside surface upper edge at final drive shaft 2000 middle parts; The endoporus of change gear 2120 is provided with spline; Change gear 2120 is installed in the spline of final drive shaft through spline fitted, and spline can horizontally slip in spline, thereby realizes horizontally slipping of change gear 2120; Change gear 2120 is arranged on to be followed the tracks of big worm gear 2101 and resets between the big worm gear 2100, follows the tracks of to be provided with the connecting portion suitable with change gear 2120 on big worm gear 2101 and the big worm gear 2100 that resets, and is provided with the gear teeth suitable with change gear 2120 in this connecting portion; When change gear 2120 horizontally slipped, change gear can be distinguished independently connection tracking power train and final drive shaft 2000, realized that final drive shaft 2000 carries out pursuit movement; Perhaps change gear can independently connect reset power train and final drive shaft 2000 respectively, realizes that final drive shaft 2000 carries out reseting movement.
The output shaft of dragging motor is provided with and affects leading screw 5100; Affect that engage sleeves is equipped with slide block 5111 on the leading screw 5100; Also be equipped with the guide rail 5110 parallel on the slide block 5111 with affecting leading screw 5100; One side of slide block is provided with tooth bar, the installation that matches with pinion wheel 5120 of this tooth bar, and the number of teeth on the tooth bar can drive pinion wheel rotation 120 degree; The opposite side of pinion wheel 5120 is equipped with shift fork slide block 5130 through the gear teeth; Shift fork slide block 5130 is sleeved on and affects on the shift fork slide block guide rail 5131 that leading screw laterally arranges; Shift fork slide block 5130 is provided with shift fork 2121; Shift fork 2121 is installed on the axle journal of change gear 2120, horizontally slips to stir change gear 2120; Wherein, Pinion wheel 5120 is provided with crank 5122, and the end of crank 5122 is provided with crank axle 5123, is hinged with expansion link 5125 on the outer end of crank axle 5123; The other end of expansion link 5125 is hinged on the fixed cap 5000; Be provided with spring in the expansion link 5125, this spring has different length variations when the diverse location of crank rotation, and is that pinion wheel 5120 provides the extra power source when pinion wheel 5120 and slide block tooth bar take off tooth.
2, when needs return protection or start tracking, need different speed to cooperate.Control system is sent pulse signal to dragging motor 05; Dragging motor 05 clockwise or be rotated counterclockwise (according to change gear 2120 residing determining positions at that time); And drive slide block 5111 and slides to the left or to the right, slide block set is contained in and affects on leading screw 5100 and the guide rail 5110.Rack drives pinion wheel 5120 rotations that are provided with on the slide block, crank 5122 can only rotate positive and negative 90 degree at third quadrant and four-quadrant, and the spring of expansion link 5125 inside has different length variations when the diverse location of crank rotation.During mechanism action; Affect leading screw 5100 to promote slide block 5111 and slide to the left or to the right, drive pinion wheel 5120 rotations 120 degree backs and break away from pinion wheel, after this pinion wheel is driven by expansion link 5125; Accomplish 60 remaining degree rotations; Drive change gear 2120 with follow the tracks of big worm gear break away from, with the big worm gear engagement that resets, perhaps drive change gear 2120 break away from the big worm gear that resets, with follow the tracks of big worm gear engagement, thereby accomplish gear shifting operation.
3, promote to separate (displacement that promotes slide block has programmed control) with pinion wheel after slide block 5111 drives pinion wheel 5120 rotations 120 degree; This is because the external tooth on the change gear 2120 not necessarily can be aimed at the internal tooth profile of tooth of the tracking or the big worm gear that resets fully; Needing to follow the tracks of or to reset just can align profile of tooth and slip into to accomplish in the tooth and mesh after big worm gear rotates to an angle; If will not promote slide block 5111 separates with pinion wheel 5120; Certainly will cause when shift fork slide block 5130 has been in irremovable state fully when also not having normal engaged; Dragging motor 05 will continue drive and affect leading screw 5100 to promote shift fork slide block 5130 move left and right by force, cause the damage of mechanism.
Each part is formed with function following among the present invention:
1, the main stress parts of gear case 1000 reductors, the while is as the fixed frame of all second-stage worm gear drive disk assemblies and other parts.
2. big Worm Bearing end cap 1100 main stress parts: reductor final drive shaft 2000 and main shaft bearing 2111 and the positioning mounting of following the tracks of worm gear 2100 and reset worm gear 2101, bearing 2112 are installed on the gear case 1100.Ring gasket 1110 and rubber seal 1111 are installed on it.
3. ring gasket 1110: be used to be fixed rubber seal 1111.Be installed on the big Worm Bearing end cap 1100.
4. rubber seal 1111: closely contact with big Worm Bearing end cap 1100 with final drive shaft 2000, seal.Be installed on the big Worm Bearing end cap 1100.
5. rubber seal 1112: be installed between gear case 1000 and the big worm-wheel shaft end cap 1100.Play sealing and dustproof.
6. end cover 1120: be installed on the gear case 1000 of reductor the fabrication hole that uses when being used for opening installation, debugging, maintenance on the seal case.
7. rubber seal 1121: be installed between gear case 1000 bodies and the end cover 1120.Play sealing and dustproof.
8. end cover 1122: be installed on the gear case 1000 of reductor the fabrication hole that uses when being used for opening installation, debugging, maintenance on the seal case and annotating lubricant grease.
9. rubber seal 1123: be installed between gear case 1000 bodies and end cover 1122 of reductor, play sealing and dustproof.
10. big Worm Bearing end cap fixed screw 1201: big Worm Bearing end cap 1100 is fixed on gear case 1000 bodies with rubber seal 1112.
11. ring gasket fixed screw 1202: ring gasket 1110 and rubber seal 1111 are fixed on the big Worm Bearing end cap 1100.
12. end cover fixed screw 1203: be installed on gear case 1000 bodies with end cover 1122 with rubber seal 1123.
13. end cover fixed screw 1204: be installed on gear case (figure number 1000) body with end cover 1120 with rubber seal 1121.
14. final drive shaft 2000 main stressed and service parts: change gear 2120 is installed on it, the big worm gear 2101 that resets, follows the tracks of parts such as big worm gear 2100, main shaft bearing 2111.
The big worm gear 2101 15. reset: main transmission stressed member is used for resetting fast of photo-thermal power generation settled date tracking mounting system.Big worm gear axle sleeve 2110 is installed on it.
16. follow the tracks of big worm gear 2100: main transmission stressed member, be used for the accurate tracking of photo-thermal power generation settled date tracking mounting system, big worm gear axle sleeve 2110 is installed on it.
17. big worm gear axle sleeve 2110: copper material, play sliding bearing.Be installed on the endoporus of reset big worm gear 2101 and the big worm gear 2100 of tracking.
18. main shaft bearing 2111: main stressed bearing plays a part support, fixing, spacing final drive shaft 2000.Be installed between final drive shaft 2000 and the big Worm Bearing end cap 1100.Mainly bear power from radial direction.
19 big worm gear end face bearings 2112: main stressed bearing is installed at the big worm gear 2101 that resets, follows the tracks of big worm gear 2100 with greatly between the Worm Bearing end cap 1100.Mainly bear power from axial direction.
20. back-up ring 2113: the both sides that are installed in final drive shaft 2000 spline end faces.Playing the protection spline is not is not worn and torn by accident with big worm gear 2100 end faces of tracking with the big worm gear 2101 that resets.
21. change gear 2120: be installed on the final drive shaft 2000.Its endoporus is a spline structure, cooperates with final drive shaft 2000 upper spline grooves, can horizontally slip, and big worm gear 2101 is meshed with the big worm gear 2100 of tracking respectively at resetting.Control final drive shaft 2000 output different rotating speed.
22. shift fork 2121: control change gear 2120 horizontally slips on transmission shaft 2000, is the power resources that change gear 2120 moves.Be installed on the shift fork slide block 5130, and be sleeved on the axle journal of change gear 2120.
The big worm screw 3000 23. reset: the main transmission stressed member is sent to the moment of torsion of first class reducer structure transmission on the big worm gear 2101 that resets and drives its rotation.The small gear 4100 that resets, bearing 3111, bearing (ball) cover 3100, small gear setting-up piece 4115, connecting key 4116, scrambler 08 are installed on it.
24. follow the tracks of big worm screw 3001 main transmission stressed members.The moment of torsion of first class reducer structure transmission is sent to follows the tracks of on the big worm gear 2100 and drive its rotation.Be equipped with on it and follow the tracks of small gear 4101, bearing 3111, bearing (ball) cover 3100, small gear setting-up piece 4115, connecting key 4116, scrambler 08.
25. bearing (ball) cover 3100 provides down fixed pivot for the big worm screw 3000 that resets with the big worm screw 3001 of tracking.Bearing 3111 and rubber seal 3110 are installed on it.
26. rubber seal 3110: play dust seal.Be installed between bearing (ball) cover 3100 and gear case 1000 bodies.
27. bearing 3111: the axial thrust load and the rotation of bearing big worm screw.Be installed on the spindle nose of reset big worm screw 3000 and the big worm screw 3001 of tracking, and fixing by bearing (ball) cover 3100.
28. bearing (ball) cover fixed screw 3200: play fixation.Bearing (ball) cover 3100 is fixed on gear case 1000 bodies.
29. small gear casing 4000: the static housing of reductor right side first order transmission.The small gear 4100 that resets is installed on it follows the tracks of small gear 4101, the small worm 4102 that resets is followed the tracks of small worm 4103 small gear case dust caps 4114, rubber seal 4113 etc.
30. small gear casing 4001 functions are the same.
32. follow the tracks of small gear 4101: the one-level of variator is followed the tracks of the transmission worm gear, pass through connecting key 4116 together with the big worm screw 3001 of tracking, and big worm screw 3001 rotations is followed the tracks of in drive.
34. follow the tracks of small worm 4103: the one-level of variator is followed the tracks of the transmission worm screw, drives trace bit small gear 4101 and rotates, and is installed in small gear casing 4001, and the other end is connected with the output shaft of stepper motor.
35. bearing (ball) cover 4110: small worm 4102 provides fixed pivot with tracking small worm 4103 in order to reset.Bearing 4111 and rubber seal 4113 are installed on it.
36. bearing 4111: the axial thrust load and the rotation of bearing small worm.Be installed on reset small worm 4102 and the spindle nose of following the tracks of small worm 4103 and fixing by bearing (ball) cover 4110.
37. bearing (ball) cover 4112: small worm 4102 provides down fixed pivot with tracking small worm 4103 in order to reset.Bearing 4111 and rubber seal 4113 are installed on it.
38. rubber seal 4113: play the sealing and dustproof effect.Be installed in bearing (ball) cover 4110,4112 and small gear casing 4000, between 4001.
39. small gear case dust cap 4114: play dust seal, on have reinforcement to work to improve intensity, the double simultaneously heat radiator fin of doing uses, and is installed on the left and right sides small gear case 4000,4001.
40. small gear setting-up piece 4115: the small gear 4100 tracking small gears 4101 that will reset are pressed on the big worm screw 3000 that resets and follow the tracks of on the spindle nose of big worm screw 3001 also fixing.
41. connecting key 4116: play and the effect that is connected that big worm screw 3000 is followed the tracks of big worm screw 3001 and the small gear 4100 that resets is followed the tracks of between the small gear 4101 that resets.
42. fixed screw 4200: be used for fixing small gear setting-up piece 4115.
43. fixed screw 4201: be used for fixing bearing (ball) cover 4110.
44. fixed screw 4202: be used for fixing bearing (ball) cover 4112.
45. fixed screw 4203: be used for small gear casing 4000,4001 is fixed on gear case 1000.
46. fixed screw 4204: be used for small gear case dust cap 4114 is fixed on small gear casing 4000,4001 bodies.
47. fixed cap 5000: the installation base plate of speed change topworks.
48. affect leading screw 5100: by dragging motor 05 driven rotary.Promote slide block 5111 move left and right.
49. guide rail 5110: control for slide block 5111 provides the direction of mobile guide, and retrain with affecting leading screw 5100 to cooperate together for slide block provides balance.Be installed on the fixed mount 5132.
50. slide block 5111: a side of slide block has tooth bar, and under the promotion that affects leading screw 5100 rotations, move left and right drives pinion wheel 5120 simultaneously along being rotated counterclockwise.
51. fixed mount 5112: be dragging motor 05, affect leading screw 5100, guide rail 5110 provides the installation strong point.Be installed on the fixed cap 5000.
52. pinion wheel 5120: INTERMEDIATE TRANSMISSION GEAR, the power of slide block 5111 is sent on the tooth bar of shift fork slide block 5130, drive shift fork 2121 and stir change gear 2120 and accomplish speed changes.
53. pinion wheel analog bracket 5121: for pinion wheel provides the installation strong point.Be installed on the fixed cap 5000.
54. crank 5122: be installed on the pinion wheel 5120.And link to each other with expansion link 5125 through crank axle 5123.Convert the pulling force of expansion link 5125 into power that pinion wheel 5120 rotates, drive shift fork slide block 5130 move left and right, drive shift fork 2121 simultaneously and stir change gear 2120 completion speed changes.
55. crank axle 5123: be fixed on the crank 5122, be used to install expansion link 5125, and retrain for the one of which end provides hinge.
56. stationary shaft 5124: be installed on the fixed cap 5000, and retrain for an end of expansion link 5125 provides hinge.
57. expansion link 5125: spring is equipped with in its inside, when the diverse location of crank 5122 rotations, has different length variations.And be that pinion wheel 5120 provides the extra power source when pinion wheel 5120 and slide block 5111 tooth bars take off tooth.
58. shift fork slide block 5130: move left and right under pinion wheel 5120 drives.Drive shift fork 2121 simultaneously, stir change gear 2120 completion speed changes.
59. shift fork slide block guide rail 5131: shift fork slide block 5130 provides the direction control of mobile guide, for slide block the balance constraint is provided simultaneously.Be installed on the fixed mount 5132.
60. fixed mount 5132: for shift fork slide block guide rail 5131 provides the installation strong point.Be installed on the fixed cap 5000.
61. shift fork stationary shaft 5133: be used for shift fork 2121 and shift fork slide block 5130 are fixed together.Dragging shift fork moves.
62. fixed screw 5200: be used for fixed cap 5000 and whole speed change topworks are installed in gear case 1000 bodies.
63. follow the tracks of stepper motor 01: the low speed stepper motor, be used to drive the first class reducer structure, drive and follow the tracks of big worm gear 2101 rotations of big worm screw 3001 tracking, and drive final drive shaft 2000 outputting powers, accomplish accurate tracking.
64. follow the tracks of stepper motor 02: be used with following the tracks of stepper motor 01, all the other functions are the same.
67. dragging motor 05: being a stepper motor, is the power resources of speed change topworks.Be installed on the fixed cap 5000.
68. return stroke switch 06: the control signal output block is used for the indicator signal that whether puts in place to control system output variable speed change gear 2120.
69. follow the tracks of travel switch 07: function is the same.
70. scrambler 08: the control signal output block is used for to angle and the direction changing value of the big worm screw 3001 of control system output tracking in rotation.Two scramblers are used altogether, and with the control motor speed, the rotating speed that reaches two worm screws keeps synchronously.
71. scrambler 09: the control signal output block is used for exporting angle and the direction changing value of big worm screw 3000 in rotation that reset to control system.All the other functions are the same.
Advantage of the present invention is following:
1, integrated level is higher:
All by the structural requirement design, structurally a part plays multiple functions to all parts, has reduced the quantity of part, has alleviated the weight of structure, and volume is less relatively.
2, twin worm reducing gear:
Adopt the design of integrated form twin worm reducing gear, reduction gear ratio is big, can obtain the ratio of gear more than 3000 times.Because adopt the twin worm design, in the middle of the process of transmission, gear backlash is very little, can guarantee 0.1 degree tracking accuracy.
3, high-power high pulling torque output:
Worm screw is adopted the arc surface structural design, is enhanced about more than once than the intensity of common worm screw, owing to adopt the twin worm transmission, its bulk strength has improved four times than common single worm drive, realizes high-power high pulling torque output.
4, it is stressed to bear bi-directional axial:
This reductor is owing to adopted the bearings mounted design of gear face, so can bear very big axial force, the bearing on the output shaft is only born radial support power, like this and alleviated the burden of transmission shaft, has improved the installation and the service precision of transmission shaft again.Design characteristic comes axial force and radial force decomposition like this, makes different bearings bear different power, and Each performs its own functions; Dwindled volume; Simplify design, guaranteed stability, reliability and the chronicity of speed reduction unit work, improved the precision and the efficient of work.
5, variable-ratio output torque:
Because the specific (special) requirements of photo-thermal power generation settled date tracker, reductor need be with two kinds of speed output torques, and this is irrealizable for common worm reduction gear.Rotational speed in order satisfy to follow the tracks of with reset zero point or rotational speed requirement different features when promptly protecting; Of the present invention pair of worm gear two-speed gearbox solved this problem; We adopt stepper motor to drag the mode of rack slide; When realizing shift speed change with the drive mechanism of gear crank, guarantee again to drag on the slide block tooth bar in time with gearing mesh or disengaging, protection motor and slide block are not damaged by dieback.It also is this reductor functions peculiar.
6, the synchronous rotation that keeps the tracking and the worm screw that resets automatically:
In the mechanical gear transmission, two groups of identical gear trains, maintenance that can not be absolute in the process of rotation is synchronous or consistent.This is because mechanical drive causes in many factors such as minute differences of machining precision, installation dimension, temperature variation, lubricating condition, rotating speed of motor.Be the intrinsic characteristics of mechanical drive.In order to solve this difficult problem; We are separately installed with scrambler two lower ends of following the tracks of the big worm screw and the big worm screw that resets; Scrambler can real-time detection be in rotating speed and the direction of any two the big worm screws under the work rotation status; And issue control system with the form of pulse signal, control system in real time to the rotating speed quick-acting prescriptioies of two big worm screws to comparing, and according to the difference of two rotating speeds; The real-time rotating speed of two stepper motors of fine setting, with guarantee two worm screws with same rotational speed drive main axis rotation.
Claims (12)
1. the huge support high power of solar light-heat power-generation high precision double worm gear two-speed gearbox; It is characterized in that; This reductor comprises the tracking power train of final drive shaft, separate setting and the power train that resets, and wherein, the tracking power train is used for independently driving final drive shaft and follows the tracks of sunray; The power train that resets is used for independently driving final drive shaft and resets fast, and the reset speed of the power train that resets is faster than the tracking velocity of following the tracks of power train.
2. reductor as claimed in claim 1; It is characterized in that; The gear reduction ratio of the said power train that resets is less than the gear reduction ratio of said tracking power train; The motor speed of the said power train that resets is higher than the motor speed of following the tracks of power train, and the power of motor of the said power train that resets is greater than the power of motor of following the tracks of power train.
3. reductor as claimed in claim 2; It is characterized in that; Said tracking power train comprises two big worm screws of tracking that the big worm gear of the tracking that is arranged on the said final drive shaft, symmetry are equipped with in the big worm gear of the tracking left and right sides; Each is followed the tracks of and all is equipped with the tracking small gear on the big worm screw, follows the tracks of on the small gear and all is equipped with the tracking small worm, and the end of following the tracks of small worm all is connected with the tracking stepper motor; Successively via following the tracks of small worm, follow the tracks of small gear, follow the tracks of big worm screw and following the tracks of next outside output power of big worm gear and moment, carry out pursuit movement after this tracking stepper motor rotation to drive said final drive shaft.
4. reductor as claimed in claim 3; It is characterized in that; Two one of said tracking stepper motors are turned left; Turn right for one, thus the relative reverse rotation of two said tracking small worms of drive one-level gear, and two said tracking small worms drive the relative reverse rotation of two said tracking small gears respectively; Two said tracking small gears drive the relative reverse rotation of two big worm screws of said tracking respectively, and two relative respectively reverse rotations of the big worm screw of said tracking drive the big worm gear of said tracking and rotate to same direction.
5. reductor as claimed in claim 4; It is characterized in that; The said power train that resets comprises two big worm screws that reset that the big worm gear that resets, the symmetry that are arranged on the said final drive shaft are equipped with in the big worm gear left and right sides that resets; All be equipped with the small gear that resets on each big worm screw that resets, all be equipped with the small worm that resets on the small gear that resets, the end of the small worm that resets all is connected with the stepper motor that resets; Successively via the small worm that resets, the small gear that resets, reset big worm screw and next outside output power of the big worm gear that resets and moment, carry out reseting movement after this tracking stepper motor rotation to drive said final drive shaft.
6. reductor as claimed in claim 5; It is characterized in that; Two said one of stepper motors that reset are turned left; Turn right for one, thus the relative reverse rotation of two said small worms that reset of drive one-level gear, and two said small worms that reset drive the relative reverse rotation of two said small gears that reset respectively; Two said small gears that reset drive two said relative reverse rotations of big worm screw that reset respectively, and the relative respectively reverse rotation of two said big worm screws that reset drives the said big worm gear that resets and rotates to same direction.
7. reductor as claimed in claim 6; It is characterized in that; The said lower end that resets big worm screw and follow the tracks of big worm screw all is equipped with scrambler, and scrambler is used for real-time detection and is in said rotating speed and the direction that resets big worm screw or follow the tracks of big worm screw under the work rotation status, and issues control system with the form of pulse signal; Control system compares two said rotating speed and directions that reset big worm screw or two big worm screws of said tracking in real time; And, finely tune the rotating speed of two said stepper motors that reset in real time according to the difference of two said big worm screw rotating speeds that reset, drive main axis rotation to guarantee two said big worm screws that reset with identical rotating speed; Perhaps, finely tune the rotating speed of two said tracking stepper motors in real time, drive main axis rotation with identical rotating speed to guarantee two big worm screws of said tracking according to the difference of two big worm screw rotating speeds of said tracking.
8. reductor as claimed in claim 5; It is characterized in that, said final drive shaft and follow the tracks of power train, resetting is provided with speed change topworks between the power train, speed change topworks comprises that slip cap is contained in the change gear on the said final drive shaft; It axially is provided with spline the outside surface upper edge at said final drive shaft middle part; The endoporus of this change gear is provided with spline, and change gear is installed in the spline of said final drive shaft through spline fitted, and spline can horizontally slip in spline; Change gear is arranged on the big worm gear of said tracking and resets between the big worm gear, is provided with connecting portion and the gear teeth suitable with said change gear on the big worm gear of said tracking and the big worm gear that resets; Change gear can horizontally slip, and makes change gear independently connect said tracking power train and final drive shaft, realizes that said final drive shaft carries out pursuit movement; Perhaps change gear independently connects said power train and the final drive shaft of resetting, and realizes that said final drive shaft carries out reseting movement.
9. reductor as claimed in claim 7 is characterized in that, said speed change topworks also comprises dragging motor, slide block, pinion wheel and shift fork; The output shaft of dragging motor is provided with and affects leading screw; This affects, and engage sleeves is equipped with slide block on the leading screw, also is equipped with the guide rail parallel with affecting leading screw on the slide block, and a side of slide block is provided with tooth bar; The installation that matches with pinion wheel of this tooth bar, the number of teeth on the tooth bar can drive pinion wheel rotation 120 degree; The opposite side of pinion wheel is equipped with the shift fork slide block through the gear teeth; This shift fork slide block set is contained in and affects on the shift fork slide block guide rail that leading screw laterally arranges; The shift fork slide block is provided with shift fork, and this shift fork is installed on the axle journal of said change gear, horizontally slips to stir said change gear; Wherein, Pinion wheel is provided with crank, and the end of crank is provided with crank axle, is hinged with expansion link on the outer end of crank axle; The other end of expansion link is hinged on the fixed cap; Be provided with spring in the expansion link, this spring has different length variations when the diverse location of crank rotation, and is that pinion wheel provides extra power to originate when pinion wheel and slide block tooth bar take off tooth.
10. reductor as claimed in claim 8; It is characterized in that said crank can only rotate positive and negative 90 degree at third quadrant and four-quadrant, saidly affect leading screw to promote said slide block to slide to the left or to the right; Driving said pinion wheel rotation 120 degree backs breaks away from said pinion wheel; After this said pinion wheel is driven by the spring that is provided with in the said expansion link, accomplishes 60 degree rotations of remainder, drives the big worm gear of said change gear and said tracking and breaks away from, meshes with the said big worm gear that resets; Perhaps driving said change gear and the said big worm gear that resets breaks away from, meshes with the big worm gear of said tracking, to accomplish gear shifting operation.
11. reductor as claimed in claim 9; It is characterized in that; Be provided with in the said speed change topworks and follow the tracks of travel switch and return stroke switch, the said change gear gear teeth are smoothly in the connecting portion of the big worm gear of the said tracking of entering, and with its gear teeth tight engagement; It is closed to promote to follow the tracks of travel switch simultaneously, sends engagement signal to said control system; The said change gear gear teeth get in the connecting portion of the said big worm gear that resets smoothly, and with its gear teeth tight engagement, promote the return stroke switch closure simultaneously, send engagement signal to said control system.
12. reductor as claimed in claim 5; It is characterized in that; Said reductor also comprises control system, sun position sensor, weather environment sensor; Sun position sensor is used to respond to the information of sunray irradiating angle on longitudinal, and the weather environment sensor is used to monitor the weather integrated information, and these information all are sent to control system; Control system is used for carrying out high precision tracking, normally reset, promptly returning or automatic gear shifting speed changing to following the tracks of stepper motor, the stepper motor that resets, dragging motor conveying control command.
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| CN201110269434.8A CN102385396B (en) | 2011-09-13 | 2011-09-13 | High-power high-accuracy double worm wheel two speed gearbox for solar photo-thermal power generation giant bracket |
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| CN201110269434.8A CN102385396B (en) | 2011-09-13 | 2011-09-13 | High-power high-accuracy double worm wheel two speed gearbox for solar photo-thermal power generation giant bracket |
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| CN102385396B CN102385396B (en) | 2014-07-16 |
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| CN102385396B (en) | 2014-07-16 |
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