The middle duplicate supply combined electrical apparatus of pressing
[technical field]
The present invention relates to the electric switch aspect, the especially middle duplicate supply combined electrical apparatus of pressing.
[background technology]
Middle pressure duplicate supply combined electrical apparatus is that rated voltage is the switchgear of 12~24kV, is made up of stainless steel body, middle pressure double power-supply load swith, middle pressure three-stations load switch and other electronic devices and components.Can realize the combined electrical apparatus of the multiple function such as switching, folding, maintenance of power supply with one.
The mode of application is at present, adopts two switch cubicles, is furnished with electric elements such as on-load switch, isolating switch, earthed switch in the cabinet, makes through the switching between two switch cubicles to be used for realizing change, folding, maintenance circuit, and cost is higher relatively like this.And when running into line fault, can not switch fast, make the user suffer bigger loss economically.
[summary of the invention]
The object of the invention solves the problems of the prior art exactly, proposes to press the duplicate supply combined electrical apparatus in a kind of, can realize the multiple function one such as switching, folding, maintenance of power supply, and can reduce the usage quantity of switch and switch cubicle, effectively reduces cost.
For realizing above-mentioned purpose; The present invention proposes a kind of middle duplicate supply combined electrical apparatus of pressing; Comprise casing, the first inlet wire mechanism, the second inlet wire mechanism, the first inlet wire cable pile crown, the second inlet wire cable pile crown, press power transformation checking bollard head, the first outlet cable pile crown, the second outlet cable pile crown, air pressing type double power-supply load swith, first three-stations load switch, second three-stations load switch; Said box house and arranged on left and right sides is separately installed with first three-stations load switch and second three-stations load switch; The air pressing type double power-supply load swith is housed in the middle of the box house; The first inlet wire cable pile crown and the second inlet wire cable pile crown are housed respectively on the left plate of casing and the right plate; The left downside of casing and lower right side are separately installed with the first inlet wire cable pile crown and the second inlet wire cable pile crown; The middle downside of casing is equipped with presses power transformation checking bollard head, and the first inlet wire cable pile crown is connected with the movable contact head end of first three-stations load switch through copper rod, and the stationary contact of first three-stations load switch is connected with the left side moving contact of air pressing type double power-supply load swith through copper bar; The second inlet wire cable pile crown is connected with the stationary contact of second three-stations load switch through copper rod, and the stationary contact of second three-stations load switch is connected with the right side moving contact of air pressing type double power-supply load swith through copper bar simultaneously; The left side stationary contact of air pressing type double power-supply load swith is connected with the first outlet cable pile crown through copper bar, and the right side stationary contact of air pressing type double power-supply load swith is connected with the second outlet cable pile crown through copper bar; Said air pressing type double power-supply load swith comprises switch framework, pairing operating mechanism, drive disk assembly and major loop parts; Said pairing operating mechanism is installed in the front end of switch framework; The output of pairing operating mechanism is connected to drive disk assembly, and drive disk assembly is connected to the major loop parts.
As preferably, said pairing operating mechanism comprises electrodynamic element assembly, sheave assembly, left spring energy storage component and right spring energy-storage assembly, and said electrodynamic element assembly is connected to the sheave assembly, and the left side of sheave assembly is connected with the left spring energy storage component.
As preferably, said sheave assembly comprise part on the left side close indication, part on the right side close indication, the arm of turning left, the arm of turning right, sheave, main shaft and frame, said parting on the left side closed indication and is connected with the arm of turning left; Part on the right side to close to indicate and be connected with the arm of turning right; The center of sheave is welded with main shaft, and main shaft is installed on the centre bore of frame, makes sheave be positioned at the middle part of frame; The left side of sheave cooperates installation with the arm of turning left, and the right side of sheave cooperates installation with the arm of turning right.
As preferably; Have three sections curved grooves on the said sheave; Be respectively left parabolic wire casing, arc groove and right parabolic wire casing; Said arc groove all is equipped with roller on the turn left arm and the arm of turning right between left parabolic wire casing and right parabolic wire casing, the roller on the turn left arm and the arm of turning right can slide in three sections curved grooves of sheave.
As preferably, said arc groove is the center of circle with the axle center of main shaft, and the length of arc groove is 180 °.
As preferably; Said left spring energy storage component comprises first, first connecting lever, first spring, second connecting lever and the first output connecting rod, and said first is fixed on the frame, and an end of first connecting lever is welded on first; The other end of first connecting lever is installed an end of first spring; One end of second connecting lever is installed on first, and the other end of second connecting lever is installed the other end of first spring, and the other end of second connecting lever is also connected to the first output connecting rod; Said right spring energy-storage assembly comprises second, the 3rd connecting lever, second spring, the 4th connecting lever and the second output connecting rod; Said second is fixed on the frame; One end of the 3rd connecting lever is welded on second, and the other end of the 3rd connecting lever is installed an end of second spring, and an end of the 4th connecting lever is installed on second; The other end of the 4th connecting lever is installed the other end of second spring, and the other end of the 4th connecting lever is also connected to the second output connecting rod.
As preferably; Said electrodynamic element assembly comprises first button, second button, operating axis, motor, clutch and decelerator; Motor is installed on the decelerator; Clutch is installed on the decelerator, and operating axis is fixed on the clutch, and frame is provided with first button and second button that is electrically connected on the motor.
As preferably, said drive disk assembly comprises two output shafts and 6 pairs of action connecting levers, is connected with 3 pairs of action connecting levers on said each output shaft, and two output shafts are connected respectively to the first output connecting rod and the second output connecting rod.
As preferably; Said major loop parts comprise the first termination bolt, the first bilateral insulating sleeve, guidance contacts, first Mume flower contact, insulating case, sliding sleeve, conductive sleeve, second Mume flower contact, threaded cap, fixed contact, insulating cover, the second bilateral insulating sleeve and the second termination bolt; Said guidance contacts great waves are arranged with first bilateral insulating sleeve and the conductive sleeve; The two ends of conductive sleeve are respectively equipped with first Mume flower contact and second Mume flower contact, and the outside of conductive sleeve is provided with sliding sleeve, and the outside of sliding sleeve is provided with insulating case; The outer end of sliding sleeve is provided with threaded cap, and the outer end of guidance contacts is provided with the first termination bolt; Be arranged with the second bilateral insulating sleeve on the fixed contact, the two ends of fixed contact are respectively equipped with the insulating cover and the second termination bolt; The position of said fixed contact is corresponding with the position of guidance contacts.
As preferably, said casing is the seal case that is welded by corrosion resistant plate.
Beneficial effect of the present invention: the present invention has reduced the usage quantity of switch and switch cubicle, effectively reduces cost; Improve the shortcoming of the function singleness of double power supply converting switch, realized the multiple function one such as switching, folding, maintenance of power supply; Reliability, the high efficiency of electric power system have been improved.
Characteristic of the present invention and advantage will combine accompanying drawing to be elaborated through embodiment.
[description of drawings]
Fig. 1 is a kind of middle front view of pressing the duplicate supply combined electrical apparatus of the present invention;
Fig. 2 is a kind of middle vertical view of pressing the duplicate supply combined electrical apparatus of the present invention;
Fig. 3 is a kind of middle middle front view of pressing the air pressing type double power-supply load swith in the duplicate supply combined electrical apparatus of pressing of the present invention;
Fig. 4 is a kind of middle middle left view of pressing the air pressing type double power-supply load swith in the duplicate supply combined electrical apparatus of pressing of the present invention;
Fig. 5 is the A-A cutaway view of Fig. 3;
Fig. 6 is a kind of middle middle vertical view of pressing the air pressing type double power-supply load swith in the duplicate supply combined electrical apparatus of pressing of the present invention;
Fig. 7 is a kind of middle middle stereogram of pressing the air pressing type double power-supply load swith in the duplicate supply combined electrical apparatus of pressing of the present invention;
Fig. 8 is a kind of middle middle front view of pressing pairing operating mechanism in the air pressing type double power-supply load swith in the duplicate supply combined electrical apparatus of pressing of the present invention;
Fig. 9 is a kind of middle middle left view of pressing pairing operating mechanism in the air pressing type double power-supply load swith in the duplicate supply combined electrical apparatus of pressing of the present invention;
Figure 10 is the A-A cutaway view of Fig. 9;
Figure 11 is a kind of middle middle vertical view of pressing pairing operating mechanism in the air pressing type double power-supply load swith in the duplicate supply combined electrical apparatus of pressing of the present invention;
Figure 12 is a kind of middle middle rearview of pressing pairing operating mechanism in the air pressing type double power-supply load swith in the duplicate supply combined electrical apparatus of pressing of the present invention;
Figure 13 is a kind of middle middle stereogram of pressing pairing operating mechanism in the air pressing type double power-supply load swith in the duplicate supply combined electrical apparatus of pressing of the present invention;
Figure 14 is a kind of middle middle cutaway view of pressing major loop parts in the air pressing type double power-supply load swith in the duplicate supply combined electrical apparatus of pressing of the present invention.
[embodiment]
Consult Fig. 1,2; The middle duplicate supply combined electrical apparatus of pressing; Comprise casing 39, the first inlet wire mechanism 40, the second inlet wire mechanism 41, the first inlet wire cable pile crown 42, the second inlet wire cable pile crown 44, press power transformation checking bollard head 43, the first outlet cable pile crown 45, the second outlet cable pile crown 47, air pressing type double power-supply load swith 46, first three-stations load switch 48, second three-stations load switch 49; Said casing 39 inner and arranged on left and right sides are separately installed with first three-stations load switch 48 and second three-stations load switch 49; Casing 39 bosoms are equipped with air pressing type double power-supply load swith 46; The first inlet wire cable pile crown 42 and the second inlet wire cable pile crown 44 are housed respectively on the left plate of casing 39 and the right plate; The left downside of casing 39 and lower right side are separately installed with the first inlet wire cable pile crown 42 and the second inlet wire cable pile crown 44; The middle downside of casing 39 is equipped with presses power transformation checking bollard head 43, the first inlet wire cable pile crowns 42 to be connected with the movable contact head end of first three-stations load switch 48 through copper rod, and the stationary contact of first three-stations load switch 48 is connected with the left side moving contact of air pressing type double power-supply load swith 46 through copper bar; The second inlet wire cable pile crown 44 is connected with the stationary contact of second three-stations load switch 49 through copper rod, and the stationary contact of second three-stations load switch 49 is connected with the right side moving contact of air pressing type double power-supply load swith 46 through copper bar simultaneously; The left side stationary contact of air pressing type double power-supply load swith 46 is connected with the first outlet cable pile crown 45 through copper bar, and the right side stationary contact of air pressing type double power-supply load swith 46 is connected with the second outlet cable pile crown 47 through copper bar.Casing 39 is the seal cases that are welded by corrosion resistant plate.
Consult Fig. 3,4,5,6,7; The middle air pressing type double power-supply load swith 46 of pressing comprises switch framework 23, pairing operating mechanism 21, drive disk assembly and major loop parts 22; Said pairing operating mechanism 21 is installed in the front end of switch framework 23; The output of pairing operating mechanism 21 is connected to drive disk assembly, and drive disk assembly is connected to major loop parts 22.Said drive disk assembly comprises two output shafts 25 and 6 pairs of action connecting levers 24, is connected with 24, two output shafts 25 of 3 pairs of action connecting levers on said each output shaft 25 and is connected respectively to the first output connecting rod 19 and the second output connecting rod 20.
Consult Fig. 8,9,10,11,12,13; Pairing operating mechanism 21; Comprise electrodynamic element assembly, sheave assembly, left spring energy storage component and right spring energy-storage assembly; Said electrodynamic element assembly is connected to the sheave assembly, and the left side of sheave assembly is connected with the left spring energy storage component, and the right side of sheave assembly is connected with right spring energy-storage assembly.
Said sheave assembly comprises parting on the left side and closes indication 4, parts on the right side and close indication 9, the arm 12 of turning left, the arm 10 of turning right, sheave 11, main shaft 2 and frame; Said parting on the left side closed indication 4 and is connected with the arm 12 of turning left, and parts on the right side to close to indicate 9 to be connected with the arm 10 of turning right, and the center of sheave 11 is welded with main shaft 2; Main shaft 2 is installed on the centre bore of frame; Make sheave 11 be positioned at the middle part of frame, the left side of sheave 11 cooperates installation with the arm 12 of turning left, and the right side of sheave 11 cooperates installation with the arm 10 of turning right.Have three sections curved grooves on the said sheave 11; Be respectively left parabolic wire casing, arc groove and right parabolic wire casing; Said arc groove is between left parabolic wire casing and right parabolic wire casing; Turning left all is equipped with roller on arm 12 and the arm 10 of turning right, and the arm 12 of turning left can slide in three sections curved grooves of sheave 11 with roller on the arm 10 of turning right.Said arc groove is the center of circle with the axle center of main shaft 2, and the length of arc groove is 180 °.Said left parabolic wire casing is identical with the shape of right parabolic wire casing.
Said left spring energy storage component comprises first 1, first connecting lever 17, first spring 18, second connecting lever 16 and the first output connecting rod 19; Said first 1 is fixed on the frame; One end of first connecting lever 17 is welded on first 1, and the other end of first connecting lever 17 is installed an end of first spring 18, and an end of second connecting lever 16 is installed on first 1; The other end of second connecting lever 16 is installed the other end of first spring 18, and the other end of second connecting lever 16 is also connected to the first output connecting rod 19; Said right spring energy-storage assembly comprises second 3, the 3rd connecting lever 14, second spring 13, the 4th connecting lever 15 and the second output connecting rod 20; Said second 3 is fixed on the frame; One end of the 3rd connecting lever 14 is welded on second 3, and the other end of the 3rd connecting lever 14 is installed an end of second spring 13, and an end of the 4th connecting lever 15 is installed on second 3; The other end of the 4th connecting lever 15 is installed the other end of second spring 13, and the other end of the 4th connecting lever 15 is also connected to the second output connecting rod 20.
Said electrodynamic element assembly comprises first button 5, second button 6, operating axis 7, motor 8, clutch and decelerator; Motor 8 is installed on the decelerator; Clutch is installed on the decelerator; Operating axis 7 is fixed on the clutch, and frame is provided with first button 5 and second button 6 that is electrically connected on the motor 8.
Consult Figure 14; Major loop parts 22 comprise the first termination bolt 26, the first bilateral insulating sleeve 27, guidance contacts 28, first Mume flower contact 29, insulating case 30, sliding sleeve 31, conductive sleeve 32, second Mume flower contact 33, threaded cap 34, fixed contact 35, insulating cover 36, the second bilateral insulating sleeve 37 and the second termination bolt 38; Said guidance contacts 28 is arranged with the first bilateral insulating sleeve 27 and conductive sleeve 32; The two ends of conductive sleeve 32 are respectively equipped with first Mume flower contact 29 and second Mume flower contact 33; The outside of conductive sleeve 32 is provided with sliding sleeve 31; The outside of sliding sleeve 31 is provided with insulating case 30, and the outer end of sliding sleeve 31 is provided with threaded cap 34, and the outer end of guidance contacts 28 is provided with the first termination bolt 26; Be arranged with the second bilateral insulating sleeve 37 on the fixed contact 35, the two ends of fixed contact 35 are respectively equipped with the insulating cover 36 and the second termination bolt 38; The position of said fixed contact 35 is corresponding with the position of guidance contacts 28.
The middle duplicate supply combined electrical apparatus operation principle of pressing: combined electrical apparatus is used corrosion resistant plate and is welded into an airtight space, and inside is filled with the SF6 gas that relative pressure is 0.4bar, and adopts the air pressing type arc extinguishing structure.Pairing operating mechanism 21 is a kind of with electronic sheave gap spring operating mechanism, and it can realize that 1 driving shaft drives the action of two driven shaft peace sheave shape clearance respectively.The first inlet wire mechanism 40, the first inlet wire cable pile crown 42 are a kind of manual spring operating mechanisms.
When the circuit of operation breaks down; Control unit detects faulty line and gives switching signal of double power-supply load swith; 21 energy storage of pairing operating mechanism, release simultaneously transfer torque and give air pressing type double power-supply load swith 46; Moving contact breaks away from fixed contact utilization spray SF6 gas arc extinguishing, till complete separating brake.Pairing operating mechanism 21 continues energy storage, releases and can give air pressing type double power-supply load swith 46 by the while transfer torque then, and moving contact is accomplished a handoff procedure to the fixed contact fast moving till contacting fixed contact fully.During reverse the switching, process is identical, and is in the opposite direction.
When needs ground connection is overhauled, two three position mechanisms of manual operation (both: the first inlet wire mechanism 40, the first inlet wire cable pile crown 42), first three-stations load switch 48 or second three-stations load switch, 49 separating brakes and ground connection.Reverse pass is fashionable, and process is identical, and is in the opposite direction.
The middle air pressing type double power-supply load swith operation principle of pressing: switch is sealed in the metal cabinet that is welded by corrosion resistant plate, and inside is filled with the SF6 gas that relative pressure is 0.4bar, adopts the air pressing type arc extinguishing structure.Switch is provided with the major loop that symmetry is separated, and by pairing operating mechanism 21 output kinetic energies, exports connecting rod 20 through the first output connecting rod 19, second and passes to two output shafts 25 respectively.Two output shafts 25 rotate and drive 6 pairs of connecting lever swings respectively, thereby the moving contact in the driving main loop parts 22 moves up and down, and realizes dividing closing operation.Again since the kinetic energy of mechanism output be according to the sheave change of shape referring to pairing mechanism action principle part, so also installing mechanism sheave change of shape of deciliter order of switch.Realize that the two-way power supply switches.
Pairing mechanism action principle: rotate with operating grip or motor driver operation axle 7, the clutch closure makes main shaft 2 rotate with operating axis 7, also and then rotation of sheave 11 simultaneously.Three sections curves are arranged on the sheave, the two sections parabolas in both sides, the centre is that the axle center with main shaft 1 is the circular arc in the center of circle.When sheave 11 rotates, the arm 10 of turning right, the arm 12 of turning left during with the channel shape on the sheave 11 stopping time moving, when sheave 11 clockwise rotates; Turn left the roller of arm 12 along parabolic wire casing swing, make first 1 rotation, 18 energy storage of first spring; After having served as the dead point; First spring 18 is released ability, and the first output connecting rod 19 externally does work, till the parabolic wire casing is covered.Simultaneously since the roller of the arm 10 of turning right on arc groove, sheave 11 rotates, the arm 10 of turning right is not swung, so the second output connecting rod 20 does not externally do work.When the clockwise transmission of sheave 11 continuation, the roller of the arm 12 of turning left begins to walk on the circular arc, and sheave 11 rotates, and the arm 12 of turning left is not swung.And the roller of the arm 10 of turning right simultaneously makes second 3 rotation along parabolic wire casing swing, 13 energy storage of second spring, served as the dead point after, second spring 13 release can, second exports connecting rod 20 externally does work, till the parabolic wire casing was covered, vice versa.
The foregoing description is to explanation of the present invention, is not to qualification of the present invention, any scheme after the simple transformation of the present invention is all belonged to protection scope of the present invention.