CN202251753U - Two-stage transmission device - Google Patents
Two-stage transmission device Download PDFInfo
- Publication number
- CN202251753U CN202251753U CN2011200891370U CN201120089137U CN202251753U CN 202251753 U CN202251753 U CN 202251753U CN 2011200891370 U CN2011200891370 U CN 2011200891370U CN 201120089137 U CN201120089137 U CN 201120089137U CN 202251753 U CN202251753 U CN 202251753U
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- China
- Prior art keywords
- speed changer
- gear arrangement
- axle
- housing
- gear
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 230000005540 biological transmission Effects 0.000 title abstract description 25
- 230000008093 supporting effect Effects 0.000 claims description 23
- 238000005553 drilling Methods 0.000 claims description 4
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 241000276425 Xiphophorus maculatus Species 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model relates to a two-stage transmission device, it has drive shaft (20), and this drive shaft drives second transmission stage via arranging in fixed casing (10, 12) and including the first transmission stage of planetary gear (30), and this second transmission stage meshes with driven shaft (22). Each planetary gear (30) is designed as a double stepped gear with a first gear (32) which meshes with the drive shaft (20) and a second gear (34) which points in the direction of the output side. The bearing shaft (16) of each planetary gear (30) is arranged in a stationary manner inside the housing (10, 12). Furthermore, a second gearwheel (34) of the planetary gearwheel (30) meshes with a ring gear (40) of the second transmission stage, wherein the ring gear (40) is coupled in a rotationally fixed manner to the output shaft (22).
Description
Technical field
The utility model relates to a kind of two-stage gear arrangement, and it has a live axle, and this live axle drives the second speed changer level via being arranged in the fixing housing and comprising the planetary first speed changer level, this second speed changer level and driven shaft engagement.
Background technique
Abundant known this gear arrangement, it has a live axle, and this live axle drives the second speed changer level via being arranged in the fixing housing and comprising the planetary first speed changer level, this second speed changer level and driven shaft engagement.For example German patent application prospectus DE4324876C1 shows an example of this two-stage gear arrangement.Wherein, this gear arrangement is made up of two planetary transmission levels of connecting in succession.Whole transmission design is a planetary type gear transmission unit; Wherein, Each planetary pinion of planetary transmission level applies rotatablely moving of carrying out around the speed changer medial axis, and wherein, each planetary pinion of planetary transmission level itself rotates around the axis of himself again.
Problem in this known transmission is the rotatory inertia that the planetary pinion by rotation produces, and this can cause frictional loss and stability problem and so reduce the efficient of speed changer.In addition, the device that is made up of two planetary transmission levels of connecting in succession is characterised in that its structure takies more space relatively.
The model utility content
Therefore, the utility model technical problem to be solved is, a kind of gear arrangement is provided, through this gear arrangement reduce to move rotation inertia and reduce the overall structure space of this gear arrangement simultaneously.
This technical problem is pressed the utility model and is solved through a kind of two-stage gear arrangement; It has a live axle; This live axle drives the second speed changer level via being arranged in the fixing housing and comprising the planetary first speed changer level, and the engagement of this second speed changer level and driven shaft especially is by the color characteristic that goes out of the gear arrangement of the utility model; Each planetary pinion is designed to the bidentate wheel of classification; This bidentate wheel has first gear and second gear that points to the slave end direction with the live axle engagement, is arranged in enclosure interior to each planetary supporting axle fixed-site, and the engagement of the hollow wheels of planetary second gear and the second speed changer level; Wherein, hollow wheels is coupled with driven shaft antitorquely.
Be such fact with the decisive difference of known so far gear arrangement is important, that is, although planetary pinion around the spin axis rotation of himself, and that kind that is unlike in the fully known planetary transmission is rotated around the speed changer medial axis.The first speed changer level of the utility model is installed in rotatablely moving of small gear on the live axle with the supporting that is used to slow down of its planetary pinion that is designed to " static " classification bidentate wheel respectively, and this small gear for example is coupled with motor.With the second speed changer level explicitly, realized simultaneously rotatablely moving except slowing down that the moment on the driven shaft increases.By the selected structure of the speed changer of the utility model can reduce through the planetary pinion of fixed-site the to move inertia of rotation.
According to the utility model, the second speed changer level is designed to hollow wheels, and this hollow wheels is coupled with driven shaft and by the planet gear drives of the fixed-site of the first speed changer level antitorquely.This hollow wheels preferably is bearing on two positions, promptly preferably be bearing on the free axle head of driven shaft and at the case of transmission interior support on second bearing, this bearing supporting is installed on the speed changer retainer that is fixedly arranged in housing.
By this structure of saving very much the space of the gear arrangement of the utility model except can be in the driven shaft end tap moment of torsion; Can also shearing be introduced the driven shaft end, therefore especially also be suitable as the engine pack that is used for automobile by the gear arrangement of the utility model and the actuator in the automobile exhaust gas circulatory system especially.
In a kind of preferred expansion design of the utility model, stipulate, can drive simultaneously through live axle a plurality of, the planetary pinions of three bidentate wheels that are designed to classification for example.The first speed changer level has the planetary cylindrical gears gear teeth with three fixed-site for this reason.Introduce symmetrically through these a plurality of planetary pinions and to rotatablely move.Arrange and to compare the quality that has reduced rotation with traditional planetary transmission around the planetary pinion of himself axis rotation through fixed-site ground.The reducing of rotatory inertia improved the efficient of whole speed changer and reduced frictional loss.
As already mentioned, preferably arrange a retainer on case of transmission internal fixation ground.This retainer has the hole of the supporting axle that is used to hold employed planetary fixed-site.The supporting axle of planetary fixed-site is bearing in the set hole of retainer and with its other overhang bracket with one end thereof for this reason and is installed in the hole of case of transmission.
Case of transmission is made up of two housing outer covers aptly, and wherein, housing outer cover is the motor that can be coupled with speed changer, the preferably engine flange of motor.
In the another kind of expansion design of the utility model, case of transmission have jar columnar structure and regularly supporting be installed in the second housing outer cover on the first housing outer cover (for example said engine flange).The second housing outer cover has centre-drilling hole, and one of axle sleeve that is used for driven shaft is arranged in this centre-drilling hole.Another axle sleeve and the variator axis that is used for driven shaft is provided with concentrically and fixed by the speed changer retainer.
Description of drawings
Two accompanying drawings of following reference are further set forth the gear arrangement of pressing the utility model by embodiment.In the accompanying drawings:
Fig. 1 illustrates an embodiment by the two-stage gear arrangement of the utility model with sectional drawing; And
Fig. 2 illustrates the gear arrangement by Fig. 1 with stereogram, and its middle shell is cut open by part.
Embodiment
Has a housing that constitutes by two housing parts 10 and 12 at the two-stage speed changer shown in Fig. 1 and 2.First housing parts, 10 supportings of jar shape are installed on second housing parts 12 of platy structure, and this second housing parts 12 for example is designed for the engine flange of the motor 60 that is coupled with speed changer.In housing parts 12, be provided with a hole concentrically with speed changer medial axis 80, live axle 20 passes this hole and stretches out.The driving pinion that does not illustrate in the drawings from better intuitive is installed on this live axle 20 at the case of transmission interior support.
In addition, speed changer has driven shaft 22, and supporting is installed in case of transmission inside and stretches out from case of transmission with its opposed another end this driven shaft in the right part shown in Fig. 1 with it.Driven shaft is fixed in the speed changer by two axle sleeves 50,52.The supporting of first axle sleeve 50 is installed in the center hole of plate shape wall 10a of first housing parts 10 of jar shape.Second axle sleeve 52 is fixedly placed on the inner speed changer retainer of case of transmission 14 by one to be fixed.
The rotatablely moving to slow down through the gear arrangement that will be described below of live axle 20 is delivered on the driven shaft 22 and increases moment simultaneously.
Three gears 32 that supporting is installed in unshowned driving pinion and the first speed changer level on the live axle 20 mesh.This gear 32 differs hexagonal angle and equidistantly arranges with respect to speed changer medial axis 80 fixed-site ground.These three gears 32 have obviously greater than the external diameter of the driving pinion of live axle 20 and rotatable but fixed-site be bearing on the supporting axle 16.Supporting axle 16 is bearing in the hole 14a of speed changer retainer 14 in the hole 12a of the housing parts 12 on the right of the overhang bracket shown in Fig. 1 right side and with its left part with it.
Each gear 32 all is the constituent elements of planetary pinion 30 that are designed to the bidentate wheel of classification.Each planetary pinion 30 has second gear 34 that is molded over integratedly on first gear 32 for this reason, and this second gear 34 has the external diameter that is significantly less than first gear 32.This second gear 34 is molded over first gear 32 of planetary pinion 30 concentrically on that side of driven shaft 22.Second gear 34 is furnished with the cylindrical gears gear teeth with the interior gear teeth meshing of hollow wheels 40.For this reason, 40 jars of shape ground of hollow wheels are constructed and are had annular wall 42, and the interior gear teeth are molded on the internal surface of annular wall.The annular wall 42 of hollow wheels 40 is connected at the distolateral and discoid plate 44 shown in Fig. 1 left side at it integratedly.The discoid plate 44 of hollow wheels 40 has the hole that supporting regularly is equipped with driven shaft 22 at the center.
Create a kind of two-stage gear arrangement through such speed changer, wherein, had the planetary pinion of three fixed-site as the first speed changer level of the cylindrical gears gear teeth.Introduce the rotatablely moving of driving pinion of live axle 20 symmetrically through connecting three planetary pinions.Through being meshed, three planetary pinions and a hollow wheels realize the second speed changer level.Being characterised in that remarkably of this gear arrangement reduced the part of rotating, and wherein, arranges that through fixed-site ground planetary pinion reduces to minimum with the rotatory inertia of speed changer.
Case of transmission can be coupled with simple methods and motor 60.For this reason, housing parts 12 is designed for the engine flange of motor 60.Therefore the shell of speed changer has held the speed changer driving side of motor 60, and this motor is through the integrated reaction moment that the break supporting occurs of reversing.This design structure allows but speed changer-engine unit is installed as the unit of self special survey in advance in an advantageous manner, thereby a kind of motor-transmission module that is suitable for installing is provided generally.Housing parts 12 and thus preferably the engine flange of motor 60 can additionally hold bow strip (Kontaktfahne) 70, this bow strip makes mounted speed changer-engine unit to contact with plug or electronic unit.Motor 60 for example links to each other with speed changer through welding.
As illustrated in fig. 1 and 2, gear arrangement compact, that save the space especially is fit to be applied in the actuator field that is used for engine pack with the advantage of drive technology and special applications.Advantage is: rotatory inertia is less; Through with on torque distribution to three engaging gear, can when saving ground, space design size, intensity be set reliably; Through the fixing planetary pinion of application site, supporting position that realized keeping lastingly, stabilised efficiency and low friction; And, realized accurate axle supporting through the bilateral supporting of driven shaft in slave end and speed changer inside, this makes and can shearing be directed on the driven shaft.Speed changer by the utility model especially can be used in the waste gas circulation unit of automobile.
List of numerals
10 housing parts
The 10a base plate
12 housing parts
The 12a hole
14 speed changer retainers
The 14a hole
16 supporting axles
20 live axles
22 driven shafts
30 planetary pinions
32 first gears
34 second gears
40 hollow wheels
42 annular wall
44 discoid plates
50 first axle sleeves
52 second axle sleeves
60 motor
70 bow strips
80 variator axis
Claims (11)
1. two-stage gear arrangement, it has a live axle (20), and this live axle is via being arranged in fixing housing (10; 12) in and the first speed changer level that comprises planetary pinion (30) drive the second speed changer level; This second speed changer level and driven shaft (22) engagement is characterized in that, each said planetary pinion (30) is designed to the bidentate wheel of classification; This bidentate wheel has and first gear (32) of said live axle (20) engagement and second gear (34) of sensing slave end direction; Be arranged in said housing (10,12) inside to supporting axle (16) fixed-site of each said planetary pinion (30), and the engagement of the hollow wheels (40) of second gear (34) of said planetary pinion (30) and the said second speed changer level; Wherein, said hollow wheels (40) is coupled with said driven shaft (22) antitorquely.
2. by the described gear arrangement of claim 1, it is characterized in that, can drive three planetary pinions (30) that are designed to the bidentate wheel of classification simultaneously through said live axle (20).
3. by claim 1 or 2 described gear arrangements, it is characterized in that said planetary pinion (30) is arranged around said live axle (20) symmetrically.
4. by the described gear arrangement of claim 1; It is characterized in that; Said housing (10,12) internal fixation be provided with a retainer (14), and in this retainer (14), have the hole (14a) of the supporting axle (16) of the fixed-site that is used to hold said planetary pinion (30).
5. by the described gear arrangement of claim 4; It is characterized in that; One end bearing of the supporting axle of said fixed-site (16) is installed in the hole of said retainer (14), and the other end of the supporting axle of said fixed-site (16) is arranged in the hole (12a) of the first housing outer cover (12) of said speed changer.
6. by the described gear arrangement of claim 5, it is characterized in that the said first housing outer cover (12) is the engine flange of the motor (60) that is coupled with said speed changer.
7. by the described gear arrangement of claim 4; It is characterized in that; Said housing (10; 12) have jar columnar structure and regularly supporting be installed in the second housing outer cover (10) on the said first housing outer cover (12), and the said second housing outer cover (10) has centre-drilling hole (10a), first axle sleeve (50) is arranged in this centre-drilling hole (10a).
8. by the described gear arrangement of claim 7, it is characterized in that said retainer (14) and fixing concentrically second axle sleeve (52) of variator axis (80).
9. by the described gear arrangement of claim 8, it is characterized in that, said two axle sleeves (50,52) especially vertically with the said driven shaft of radial support (22).
10. by the described gear arrangement of claim 1; It is characterized in that; Said hollow wheels (40) is designed to jar shape and has the gear teeth on the circumferential surface within it, two gear engagement of these gear teeth and said planetary pinion (30) and antitorque being bearing on the said driven shaft (22).
11., it is characterized in that said motor (60) connects with the housing (10,12) of said speed changer by the described gear arrangement of claim 6 antitorquely.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200891370U CN202251753U (en) | 2011-03-30 | 2011-03-30 | Two-stage transmission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200891370U CN202251753U (en) | 2011-03-30 | 2011-03-30 | Two-stage transmission device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202251753U true CN202251753U (en) | 2012-05-30 |
Family
ID=46112999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200891370U Expired - Fee Related CN202251753U (en) | 2011-03-30 | 2011-03-30 | Two-stage transmission device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202251753U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104986035A (en) * | 2015-06-18 | 2015-10-21 | 中国北方车辆研究所 | Dual-motor and double-planet-row power coupling transmission scheme optimization method |
-
2011
- 2011-03-30 CN CN2011200891370U patent/CN202251753U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104986035A (en) * | 2015-06-18 | 2015-10-21 | 中国北方车辆研究所 | Dual-motor and double-planet-row power coupling transmission scheme optimization method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20170330 |