CN204025593U - Active speed reducer differential structure - Google Patents
Active speed reducer differential structure Download PDFInfo
- Publication number
- CN204025593U CN204025593U CN201420358764.3U CN201420358764U CN204025593U CN 204025593 U CN204025593 U CN 204025593U CN 201420358764 U CN201420358764 U CN 201420358764U CN 204025593 U CN204025593 U CN 204025593U
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- China
- Prior art keywords
- gear
- planet wheel
- housing
- level driving
- speed reducer
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Abstract
The utility model relates to a kind of active speed reducer differential structure, be specifically related to a kind of active speed reducer differential structure of engineering vehicle ransaxle, comprise input shaft (1), output shaft (2), housing (3), in housing (3), there is differential system (4), differential system comprises planet wheel shaft (41), planetary wheel carrier (42) and ring gear (43), planetary wheel carrier is connected with input shaft by spline, on the planet wheel shaft being connected with planetary wheel carrier, all there is planet wheel (44), in housing, also there is the one-level driving gear (5) being enclosed within on input shaft, between one-level driving gear and housing, by bearing, be connected, described one-level driving gear is duplicate gear and is meshed with planet wheel.The utility model is distributed to each ransaxle by having increased duplicate gear by the power pro rate average of input, has promoted automobile reliability and Security, and conserve space reduces costs simultaneously.
Description
Technical field
The utility model relates to a kind of active speed reducer differential structure, is specifically related to a kind of active speed reducer differential structure of engineering vehicle ransaxle, belongs to engineering mechanical device technical field.
Background technique
The effect of ransaxle is to increase by transmission shaft or the direct moment of torsion being transmitted by speed changer, and by torque distribution to left and right sidesing driving wheel, and make left and right sidesing driving wheel there is the desired differential function of automobile running kinology, it need to guarantee that speed changer is when top grade, on good road surface, have enough tractive force to overcome the top speed of running resistance and automobile, this depends primarily on the velocity ratio of ransaxle.The large multidirectional multi-joint driving development of present ransaxle, a lot of ransaxles are improved to three by duplex driving and drive.The three torque distribution principles that drive are: each ransaxle can obtain motor and spread out of 1/3 of moment of torsion.So just can meet to a large extent the needs of multiaxle trucks, reasonable distribution is delivered to the moment of torsion on wheel by motor, improves reliability and the Security of vehicle.
At present, conventional perforation ransaxle cannot distribute output the moment of torsion of input according to a certain percentage by active speed reducer differential structure, therefore it is to increase floating axle to form on the basis of double drive axle that three conventional bridges drive, causing arrangement need to increase transfer case just can meet the demands, the defect of this design is: 1, take up room, affect car load layout; 2, torque distribution is unreasonable, affects the Safety performance of car load.
Summary of the invention
For the deficiencies in the prior art, a kind of active speed reducer differential structure is now provided, be intended to more reasonably distribute torque, guarantee dynamic torque can mean allocation to each ransaxle, further improve automobile reliability and Security, reduce the use of transfer case simultaneously, thereby reach the object of car load lightweight and Cost optimization.
The technological scheme that adopted to achieve these goals: a kind of active speed reducer differential structure, comprise input shaft, output shaft, housing, in housing, there is differential system, differential system comprises planet wheel shaft, planetary wheel carrier and ring gear, planetary wheel carrier is connected with input shaft by spline, on the planet wheel shaft being connected with planetary wheel carrier, all there is planet wheel, planet wheel is meshed with ring gear, ring gear one side has gear ring supporting, the inner ring of gear ring supporting is connected with output shaft by spline, in housing, also there is the one-level driving gear being enclosed within on input shaft, between one-level driving gear and housing, by bearing, be connected, described one-level driving gear is duplicate gear and is meshed with planet wheel.
Preferably, described planet wheel, ring gear and one-level driving gear are straight toothed spur gear.
Further, in one-level driving gear, with planet wheel meshed gears, its standard pitch diameter is less than another gear compound graduation circular diameter.
Further, the outside of gear ring supporting is connected with housing by bearing.
The utility model is distributed to each ransaxle by having increased duplicate gear by the power pro rate average of input, to greatest extent, meet the power needs of multiaxle trucks, automobile reliability and Security have further been promoted, simultaneously by adopting three coherent logical ransaxle layout structures, make car load can reduce the use of transfer case, conserve space, thus reach the object of car load lightweight and Cost optimization.
Accompanying drawing explanation
Fig. 1 sectional view of the present utility model;
The sectional view of Fig. 2 the utility model differential system;
Fig. 3 is that A-A is to sectional view.
In figure: 1, input shaft, 2, output shaft, 3, housing, 4, differential system, 41, planet wheel shaft, 42 planetary wheel carriers, 43, ring gear, 44, planet wheel, 45, gear ring supporting, 5, one-level driving gear.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1 to Figure 3, a kind of active speed reducer differential structure, comprise input shaft 1, output shaft 2, housing 3, in housing 3, there is differential system 4, differential system 4 comprises planet wheel shaft 41, planetary wheel carrier 42 and ring gear 43, planetary wheel carrier 42 is connected with input shaft 1 by spline, on the planet wheel shaft 41 being connected with planetary wheel carrier 42, all there is planet wheel 44, planet wheel 44 is meshed with ring gear 43, ring gear 43 1 sides have gear ring supporting 45, the inner ring of gear ring supporting 45 is connected with output shaft 2 by spline, in housing 3, also there is the one-level driving gear 5 being enclosed within on input shaft 1, between one-level driving gear 5 and housing 3, by bearing, be connected, described one-level driving gear 5 is duplicate gear and is meshed with planet wheel 44.
Preferably, described planet wheel 44, ring gear 43 and one-level driving gear 5 are straight toothed spur gear.
Further, in one-level driving gear 5, with planet wheel 44 meshed gears, its standard pitch diameter is less than another gear compound graduation circular diameter.
Further, the outside of gear ring supporting 45 is connected with housing 3 by bearing.
Working principle is as follows: input shaft 1 is inputted power, and moment of torsion is passed to planetary wheel carrier 42, planetary wheel carrier 42 drives planet wheel shaft 41 and planet wheel 44 to rotate, because the periphery of planet wheel 44 is meshed with ring gear 43, in it, week meshes with the small gear in one-level driving gear 5, so the moment of torsion that power source can be provided is passed to respectively one-level driving gear 5 and ring gear 43 in proportion, wherein 1/3 offer one-level driving gear 5, 2/3 offers ring gear 43, because ring gear 43 and output shaft 2 pass through spline joint, 2/3 described moment of torsion flows to respectively two ransaxles by output shaft 2, one-level driving gear 5 flows to another ransaxle by moment of torsion, therefore each ransaxle obtains respectively wherein 1/3 moment of torsion, the moment that has completed 1:1:1 is distributed.
The utility model is distributed to each ransaxle by having increased duplicate gear by the power pro rate average of input, the power needs that meet multiaxle trucks to greatest extent have further promoted automobile reliability and Security, simultaneously by adopting three coherent logical ransaxle layout structures, make car load can reduce use, conserve space and the cost of transfer case.
Claims (4)
1. a speed reducer differential structure initiatively, comprise input shaft (1), output shaft (2), housing (3), in housing (3), there is differential system (4), differential system (4) comprises planet wheel shaft (41), planetary wheel carrier (42) and ring gear (43), planetary wheel carrier (42) is connected with input shaft (1) by spline, on the planet wheel shaft (41) being connected with planetary wheel carrier (42), all there is planet wheel (44), planet wheel (44) is meshed with ring gear (43), ring gear (43) one sides have gear ring supporting (45), the inner ring of gear ring supporting (45) is connected with output shaft (2) by spline, it is characterized in that: in housing (3), also there is the one-level driving gear (5) being enclosed within on input shaft (1), between one-level driving gear (5) and housing (3), by bearing, be connected, described one-level driving gear (5) is duplicate gear and is meshed with planet wheel (44).
2. active speed reducer differential structure as claimed in claim 1, is characterized in that: described planet wheel (44), ring gear (43) and one-level driving gear (5) are straight toothed spur gear.
3. active speed reducer differential structure as claimed in claim 2, is characterized in that: in one-level driving gear (5), with planet wheel (44) meshed gears, its standard pitch diameter is less than another gear compound graduation circular diameter.
4. active speed reducer differential structure as claimed in claim 3, is characterized in that: the outside that gear ring supports (45) is connected with housing (3) by bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420358764.3U CN204025593U (en) | 2014-06-30 | 2014-06-30 | Active speed reducer differential structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420358764.3U CN204025593U (en) | 2014-06-30 | 2014-06-30 | Active speed reducer differential structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204025593U true CN204025593U (en) | 2014-12-17 |
Family
ID=52065461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420358764.3U Active CN204025593U (en) | 2014-06-30 | 2014-06-30 | Active speed reducer differential structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204025593U (en) |
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2014
- 2014-06-30 CN CN201420358764.3U patent/CN204025593U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |