CN205155090U - U type differential reduction gear - Google Patents
U type differential reduction gear Download PDFInfo
- Publication number
- CN205155090U CN205155090U CN201521022151.3U CN201521022151U CN205155090U CN 205155090 U CN205155090 U CN 205155090U CN 201521022151 U CN201521022151 U CN 201521022151U CN 205155090 U CN205155090 U CN 205155090U
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- China
- Prior art keywords
- planet gear
- gear
- differential
- input shaft
- star
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Abstract
The utility model relates to a differential deceleration system that new energy automobile used, especially, U type differential reduction gear, it includes the reductor body, the angle gear of input shaft and input shaft tip, reductor is provided with star road wheel shell body through the bearing being internal, be provided with the basin gear with the angle gear engagement of input shaft tip on star road wheel shell body, at the inside star road wheel axle that is provided with of star road wheel shell body, respectively set up a capable gear of star at the both ends of star road wheel axle, the horizontal direction inside at star road wheel shell body is provided with two differential side gear, the axis of star road wheel axle perpendicular with differential side gear's axis, equal intermeshing between differential side gear and two the capable gears of star, this U type differential reduction gear utilizes power unit's output shaft as the input shaft of this differential reduction gear, the compacter integral structure of structure when realizing it with the cooperation of power structure, and running behaviour is more reliable and more stable, reasonable air gap method of adjustment means of while, the assembly debugging is simple and convenient for the gear drive noise of its operation in -process is minimum.
Description
Technical field
The utility model relates to the differential deceleration system that new-energy automobile uses, especially a kind of U-shaped differential speed reducer.
Background technique
The differential speed reducer of what orthodox car and existing new-energy automobile used is all conventional construction, and the speed changer of conventional construction.The differential speed reducer functional structure of conventional construction is single, complicated, on the propons being usually arranged on automobile or back axle, and is integrated with propons or back axle structure.New energy power installation form is restricted, cannot supports the use the demand of Modern New new energy power system.
Model utility content
The purpose of this utility model is deficiency in order to solve above-mentioned technology and provides a kind of simple and reasonable compact, can realize the mid-equalization of transmission shaft, and truck drive shaft can be made to no longer include the New Type of Differential speed reducer divided of left and right.
In order to achieve the above object, U-shaped differential speed reducer designed by the utility model, it comprises the angle gear of reducer shell, input shaft and input shaft end, wherein said input shaft is for providing the output shaft of the power system of power to differential speed reducer, in reducer shell, bearing is provided with planet gear frame, planet gear frame is provided with the bevel gear with the angle gears meshing of input shaft end, planet gear frame inside is provided with planet gear axle, a diameter parallel of planet gear shaft centre line and bevel gear excircle; A capable gear of star is respectively set at the two ends of planet gear axle, the substantially horizontal of planet gear frame inside is provided with two differential gears, the described axis of planet gear axle and the axes normal of differential gear, engage between differential gear with two capable gears of star mutually; Be rotationally connected between described planet gear frame and differential gear; In the reducer shell at planet gear frame two ends, be provided with limiting retainer ring position restriction is carried out to it, the reducer shell of the outer end of limiting retainer ring is provided with axle-shaft oil seal.
Technique scheme, power is imported into by input shaft, and realize planet gear frame rotate by engaging of angle gear and bevel gear, under the cooperation of the capable gear of star and differential gear, realize differential slow down, structure is simple, the input shaft of differential mechanism is the output shaft of power system equally, and both are the same axis, thus the integrated structure of differential speed reducer and power system can be made compacter; And the mid-equalization of transmission shaft can be realized, make the transmission shaft of automobile no longer include dividing of left and right.
The position that angle gear on described input shaft engages with bevel gear is: the center line of power system output shaft and planet gear shaft centre line deviation 30mm.This structure can realize hyperbola engagement and drive, and reduces the noise etc. in running.
Described limiting retainer ring is divided into the part coordinated with reducer shell and the part contacted with planet gear frame upper bearing (metal); The thickness of the part that described limiting retainer ring coordinates with reducer shell is less than the thickness of the part contacted with planet gear frame upper bearing (metal); And the segment thickness that about reducer shell, two collars contact with planet gear frame upper bearing (metal) is identical or different.Wherein the thickness of limiting retainer ring and reducer shell mating part is 4mm, and the thickness of limiting retainer ring and planet gear frame contact segment is in one of 4.0mm, 4.1mm, 4.2mm, 4.3mm, 4.4mm, 4.5mm or 4mm to 4.5mm scope; Selected the limiting retainer ring of different-thickness by two ends, realize the restriction to planet gear frame position, thus realize the adjustment of left and right air gap between diagonal angle gear and bevel gear, structure is simple, easy to adjust, reliable and stable.
Reducer shell outside injection moulding or be bonded with quieter material layer, being processed with in the inside of reducer shell and concavo-convexly waiting the noise-reducing structure of special shape, greatly reducing the gear transmission noise of differential speed reducer when running up work.
The U-shaped differential speed reducer that the utility model obtains, utilizes the input shaft of output shaft as this differential speed reducer of power system, realizes structure when it coordinates with dynamic structure compacter, achieves structure-integrated.Ride quality is more reliable and more stable; Simultaneously reasonably air gap adjustment method means, equipment adjustment is simple and convenient, and making it have in running has minimum gear operation drive noise, makes power direct-drive again, the advantages such as power transmission loss is few.
Accompanying drawing explanation
Fig. 1 is structure sectional view one of the present utility model;
Fig. 2 is structure sectional view two of the present utility model.
Embodiment
Below by embodiment, the utility model will be further described by reference to the accompanying drawings.
Embodiment 1:
As shown in Figure 1, the U-shaped differential speed reducer that the present embodiment describes, it comprises the angle gear 3 of reducer shell 1, input shaft 2 and input shaft 2 end, wherein said input shaft 2 is for providing the output shaft of the power system of power to differential speed reducer, in reducer shell 1, bearing is provided with planet gear frame 8, planet gear frame 8 is provided with the bevel gear 4 engaged with the angle gear 3 of input shaft 2 end, planet gear frame 8 inside is provided with planet gear axle 5, a diameter parallel of planet gear axle 5 center line and bevel gear 4 excircle; A capable gear 6 of star is respectively set at the two ends of planet gear axle 5, the substantially horizontal of planet gear frame 8 inside is provided with two differential gears 7, the axis of described planet gear axle 5 and the axes normal of differential gear 7, engage between differential gear 7 with two capable gears 6 of star mutually; Be rotationally connected between described planet gear frame 8 and differential gear 7; In the reducer shell 1 at planet gear frame 8 two ends, be provided with limiting retainer ring 9 position restriction is carried out to it, the external reducer housing 1 of limiting retainer ring 9 is provided with axle-shaft oil seal 10.Be injected with quieter material layer 11 in the outside of reducer shell 1, be processed with the concavo-convex noise-reducing structure waiting special shape in the inside of reducer shell.
The position that angle gear 3 on described input shaft 2 engages with bevel gear 4 is: the center line of the output shaft of power system and planet gear axle 5 centerline deviation 30mm.
Described limiting retainer ring 9 is divided into the part coordinated with reducer shell 1 and the part contacted with planet gear frame 8 upper bearing (metal); The thickness of the part that described limiting retainer ring 9 coordinates with reducer shell 1 is less than the thickness of the part contacted with planet gear frame 8 upper bearing (metal); And two limiting retainer rings 9 are different from the thickness of planet gear frame 8 upper bearing (metal) contact segment on reducer shell 1, realize adjusting the relative position of planet gear frame 8 by both thickness differences, thus the transmission air gap between adjustment angle gear 3 and bevel gear about 4.
Claims (4)
1. a U-shaped differential speed reducer, it is characterized in that: it comprises the angle gear of reducer shell, input shaft and input shaft end, wherein said input shaft is for providing the output shaft of the power system of power to differential speed reducer, in reducer shell, bearing is provided with planet gear frame, planet gear frame is provided with the bevel gear with the angle gears meshing of input shaft end, planet gear frame inside is provided with planet gear axle, a diameter parallel of planet gear shaft centre line and bevel gear excircle; A capable gear of star is respectively set at the two ends of planet gear axle, the substantially horizontal of planet gear frame inside is provided with two differential gears, the described axis of planet gear axle and the axes normal of differential gear, engage between differential gear with two capable gears of star mutually; Be rotationally connected between described planet gear frame and differential gear; In the reducer shell at planet gear frame two ends, be provided with limiting retainer ring position restriction is carried out to it, the reducer shell of the outer end of limiting retainer ring is provided with axle-shaft oil seal.
2. the U-shaped differential speed reducer of one according to claim 1, is characterized in that: the position that the angle tooth on described input shaft engages with basin tooth is: the center line of the output shaft of power system and planet gear shaft centre line deviation 30mm.
3. the U-shaped differential speed reducer of one according to claim 1 and 2, is characterized in that: described limiting retainer ring is divided into the part coordinated with reducer shell and the part contacted with planet gear frame upper bearing (metal); The thickness of the part that described limiting retainer ring coordinates with reducer shell is less than the thickness of the part contacted with planet gear frame upper bearing (metal); And the thickness of the part that two collars contact with planet gear frame upper bearing (metal) is identical or different about reducer shell.
4. the U-shaped differential speed reducer of one according to claim 3, is characterized in that: reducer shell outside injection moulding or be bonded with quieter material layer; Irregular noise-reducing structure is processed in the inside of reducer shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521022151.3U CN205155090U (en) | 2015-12-10 | 2015-12-10 | U type differential reduction gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521022151.3U CN205155090U (en) | 2015-12-10 | 2015-12-10 | U type differential reduction gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205155090U true CN205155090U (en) | 2016-04-13 |
Family
ID=55690784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521022151.3U Active CN205155090U (en) | 2015-12-10 | 2015-12-10 | U type differential reduction gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205155090U (en) |
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2015
- 2015-12-10 CN CN201521022151.3U patent/CN205155090U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |