CN204387277U - Pure electric automobile carries retarder with strong - Google Patents
Pure electric automobile carries retarder with strong Download PDFInfo
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- CN204387277U CN204387277U CN201520012829.3U CN201520012829U CN204387277U CN 204387277 U CN204387277 U CN 204387277U CN 201520012829 U CN201520012829 U CN 201520012829U CN 204387277 U CN204387277 U CN 204387277U
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Abstract
The utility model provides a kind of pure electric automobile to carry retarder with strong, and comprise front cover and rear end cover, front cover and rear end cover close up formation speed reducer housing, and speed reducer housing is for supporting the input shaft that can rotate, jack shaft, the differential mechanism that arrange in it; Input shaft for connecting external impetus axle is located in speed reducer housing, and input shaft is meshed with intermediate gear by the gear on input shaft cylindrical, and intermediate gear is socketed on jack shaft and also jack shaft can be driven to rotate together; Jack shaft is engaged with driving gear by the gear on jack shaft cylindrical, and driving gear is fixedly connected with differential mechanism, and differential mechanism can be driven to rotate together; Differential mechanism is used for connecting the left and right output shaft of automobile respectively and can rotates with different rotating speeds to make the left and right output shaft of automobile.This retarder transmitted power is large, and noise is little, can realize different speed ratios and output torque under the constant prerequisite of profile; Differential mechanism can meet automobile two sidecar wheel has speed difference requirement when turning.
Description
Technical field
The utility model relates to a kind of reducer for vehicle, and specifically a kind of pure electric automobile carries retarder with strong.
Background technique
The enforcement of and China new energy policy day by day severe on the impact of environment along with motor vehicle exhaust emission, new-energy automobile (particularly pure electric automobile) is more and more subject to people's attention, country has also put into effect multinomial incentives, in the recent period to promote the development of pure electric automobile technology further.And pure electric automobile needs a kind of retarder can meet transmitted power to want large, noise is little, constant different speed ratios and the output torque of realizing of external form, and demand fulfillment automobile two sidecar wheel has the requirement of speed difference when turning.
Summary of the invention
The purpose of this utility model is the demand meeting electric vehicle, a kind of pure electric automobile is provided to carry retarder with strong, transmitted power is large, noise is little, different speed ratios and output torque can be realized under the constant prerequisite of profile, output terminal is provided with differential mechanism, and the vehicle right and left output shaft connected from the both sides differential gear in differential mechanism can rotate with different rotating speeds, can meet automobile two sidecar wheel has speed difference requirement when turning.The technical solution adopted in the utility model is:
A kind of pure electric automobile carries retarder with strong, and comprise front cover and rear end cover, front cover and rear end cover close up formation speed reducer housing, and speed reducer housing is for supporting the input shaft that can rotate, jack shaft, the differential mechanism that arrange in it;
Input shaft for connecting external impetus axle is located in speed reducer housing, and input shaft is meshed with intermediate gear by the gear on input shaft cylindrical, and intermediate gear is socketed on jack shaft and also jack shaft can be driven to rotate together;
Jack shaft is engaged with driving gear by the gear on jack shaft cylindrical, and driving gear is fixedly connected with differential mechanism, and differential mechanism can be driven to rotate together;
Differential mechanism is used for connecting the left and right output shaft of automobile respectively and can rotates with different rotating speeds to make the left and right output shaft of automobile.
Further, differential mechanism comprises differential casing, differential gear, planetary pinion, basin-shaped washer and semiaxis;
The shape of differential casing is ball caged, and there is a fin the upper and lower center deviation side of periphery of ball cage, and driving gear is fixed on the fin end face of differential casing; Respectively have a boss about ball cage, ball cage left and right boss cylindrical is respectively socketed bearing, is carried on front cover and rear end cover rotationally by bearing; Respectively have hole in the middle of the boss of ball cage left and right, enter for automobile output shaft; The inner headed face of ball cage respectively has a boss up and down, upper and lower raised head face is spherical shape, offset with face, basin-shaped washer pommel, the upper and lower center of ball cage has the through hole of up/down perforation, semiaxis is socketed with in through hole, boss center, ball cage inner headed face left and right respectively has a cylindrical hole, is socketed differential gear outer step cylindrical in hole respectively;
Differential gear is provided with two, symmetrical distribution, and cylindrical one end is cylndrical surface and is socketed in boss endoporus cylndrical surface, differential casing inwall left and right, and the other end is processed with umbrella shape involute gear and is meshed with planetary pinion umbrella shape involute gear; Each differential gear endoporus is used for being connected with automobile output shaft;
Planetary pinion is provided with two, symmetrical up and down, and Excircle machining umbrella shape involute gear is meshed with differential gear umbrella shape involute gear, and endoporus is cylindrical hole and is socketed on semiaxis cylindrical, can rotate around semiaxis; Top end is spherical and offsets with basin-shaped washer sphere;
Basin-shaped washer is provided with two, symmetrical up and down, and one side offsets with the upper and lower raised head face of differential casing inwall, and another side and planetary pinion top end offset;
Semiaxis two ends are socketed in the through hole of differential casing up/down perforation, and the upper and lower symmetry of middle cylindrical is socketed basin-shaped washer and planetary pinion respectively.
Further, the gear of driving gear, jack shaft, input shaft, intermediate gear is involute helical gear.
Further, on front cover and rear end cover, correspondence is provided with three bearing holes and is socketed bearing respectively, is respectively used to from bottom to top support differential casing, jack shaft and input shaft; The intermediate bearing aperture of front cover is blind hole, and upper and lower two end axles bearing bore is for having step through-hole and being socketed with seal ring, and the centre of rear end cover and upper shaft bearing bore are blind hole, and bottom end bearing hole is for having step through-hole and being socketed with seal ring.
Further, the straight spline joint external impetus axle of input shaft by its endoporus is processed.
Further, the straight spline joint automobile output shaft of differential gear by its endoporus is processed.
Further, the material of driving gear, differential gear, planetary pinion, jack shaft, input shaft and intermediate gear is through the heat treated alloyed steel of carbonitriding.
The utility model has the advantage of: as long as this retarder converts different modules, the number of teeth, just can realize different drive ratios (from 1:4 to 1:8) and output torque, gear is all designed to helical gear and processes through carbonitriding heat treatment, surperficial roll flute, the contact ratio of gears meshing is large, noise in operating is low, and bearing capacity is large; Output terminal is designed with differential mechanism, and the vehicle right and left output shaft connected from the both sides differential gear in differential mechanism can rotate with different rotating speeds, can meet automobile two sidecar wheel has speed difference requirement when turning.
Accompanying drawing explanation
Fig. 1 is structure sectional view of the present utility model.
Fig. 2 is the right elevation of Fig. 1.
Fig. 3 is the left view of Fig. 1.
Embodiment
Below in conjunction with concrete drawings and Examples, the utility model is described in further detail.
As shown in FIG. 1 to 3, the pure electric automobile that the utility model proposes carries retarder with strong, comprises the parts such as front cover 1, rear end cover 2, driving gear 3, differential casing 4, differential gear 5, planetary pinion 6, basin-shaped washer 7, jack shaft 8, input shaft 9, intermediate gear 10 and semiaxis 11.
Differential mechanism forms primarily of differential casing 4, differential gear 5, planetary pinion 6, basin-shaped washer 7 and semiaxis 11.
Front cover 1 and rear end cover is 2-in-1 holds together to form speed reducer housing, speed reducer housing is for supporting the input shaft 9 that can rotate, jack shaft 8, the differential mechanism that arrange in it.
Front cover 1 is oval die castings, material is aluminum-magnesium alloy, a pressure pouring forms, lightweight, intensity is high, and bottom wall central line be arranged in parallel three bearing hole socket bearings, is respectively used to from bottom to top support differential casing 4, jack shaft 8 and input shaft 9, intermediate bearing aperture is blind hole, upper and lower two end axles bearing bore for have step through-hole and be socketed with not rubber skeleton circle as seal ring 14 for dust-proof and oil-leakage-prevention.
Rear end cover 2 is oval die castings, material is aluminum-magnesium alloy, a pressure pouring forms, lightweight, intensity is high, bottom wall central line be arranged in parallel three bearing hole socket bearings, be respectively used to from bottom to top support differential casing 4, jack shaft 8 and input shaft 9, bottom end bearing hole for have step through-hole and be socketed with not rubber skeleton circle as seal ring 14 for dust-proof and oil-leakage-prevention, middle and upper shaft bearing bore is blind hole, drain oil 12 and oil outlet 13 are set about lower end respectively, in hole, are socketed screw sealing.
Driving gear 3 is disc parts, Excircle machining has involute helical gear, endoporus is three smooth, cylindrical peripheral surface steps, and middle inner hole sleeve is connected to differential casing 4 cylindrical, and connecting end surface and differential casing 4 fin 401 end face of middle endoporus and right side endoporus offset and fix with bolt.
Differential casing 4 is ball caged part, the die casting of Cast Steel one piece forms, the upper and lower center of periphery of ball cage is to the left a fin 401, and fin 401 circumference has tapped hole, and the connecting end surface of fin 401 left side and the middle endoporus of driving gear 3 and right side endoporus offsets and fixes with bolt.Respectively have a boss about ball cage, ball cage left and right boss cylindrical is respectively socketed bearing, is carried on front cover 1 and rear end cover 2 rotationally by bearing; Respectively have hole 402 in the middle of the boss of ball cage left and right, enter for automobile output shaft; The inner headed face of ball cage respectively has a boss up and down, upper and lower raised head face is spherical shape, offset with face, basin-shaped washer 7 pommel, the upper and lower center of ball cage has the through hole of the up/down perforation of diameter Ф 15, semiaxis 11 is socketed with in through hole, boss center, ball cage inner headed face left and right respectively has a cylindrical hole, is socketed differential gear 5 outer step cylindrical in hole respectively.
Differential gear 5 is cover parts, have two, symmetrical distribution, cylindrical one end is smooth, cylindrical peripheral surface and is socketed in boss endoporus cylndrical surface, differential casing 4 inwall left and right, the other end is processed with umbrella shape involute gear and is meshed with planetary pinion 6 umbrella shape involute gear, and each differential gear 5 endoporus is processed with the straight spline 501 be connected with automobile output shaft.
Planetary pinion 6 is cover parts, totally two, symmetrical up and down, and Excircle machining umbrella shape involute gear is meshed with differential gear 5 umbrella shape involute gear, and endoporus is smooth cylindrical hole and is socketed on semiaxis 11 cylindrical, can rotate around semiaxis 11; Top end is spherical and offsets with basin-shaped washer 7 sphere.
Basin-shaped washer 7 is annulus bulb, totally two, symmetrical up and down, and one side offsets with the upper and lower raised head face of differential casing inwall, and another side and planetary pinion 6 top end offset.
Jack shaft 8 is axial workpiece, from the left side of Fig. 1, cylindrical first step is socketed with bearing, first step and second step connecting end surface and bearing inner race end face offset, second step Excircle machining has involute helical gear and is meshed with driving gear 3, and the 3rd step is smooth, cylindrical peripheral surface, and the left side is socketed with intermediate gear 10, and connect with woodruff key, the right side is socketed with bearing.
Input shaft 9 is hollow pipe part, from the left side of Fig. 1, cylindrical first step is socketed with bearing, cylindrical first step and second step connecting end surface and left side bearing inner race end face offset, cylindrical second step is smooth, cylindrical peripheral surface, 3rd step Excircle machining has involute helical gear and is meshed with intermediate gear 10, and cylindrical the 4th step is socketed a right side bearing, and cylindrical the 5th step is socketed a seal ring 14.From the left side of Fig. 1, endoporus first step and second step are smooth cylindrical hole, and endoporus the 3rd step is processed into and the straight spline 901 inputting motor shaft spline and match, and endoporus the 4th step is smooth cylindrical hole.In electric vehicle, external impetus axle is motor shaft.
Intermediate gear 10 is disc parts, Excircle machining has involute helical gear and is meshed with input shaft 9 cylindrical the 3rd step involute helical gear, inner hole sleeve is connected to jack shaft 8 the 3rd step cylindrical left side and connects with woodruff key, and left and right end face offsets with jack shaft 8 second cylindrical and the 3rd step connecting end surface and the right its left end face respectively.
Semiaxis 11 is axial workpiece, and cylindrical is smooth, cylindrical peripheral surface, and diameter is Ф 15, and two ends are socketed in the hole of differential casing 4 up/down perforation, and the upper and lower symmetry of middle cylindrical is socketed basin-shaped washer 7 and planetary pinion 6 respectively.Semiaxis 11 bottom is connected with differential casing 4 by pin 15.
Driving gear 3, differential gear 5, planetary pinion 6, jack shaft 8, input shaft 9 and intermediate gear 10 part all adopt alloy steel material to make, process through carbonitriding heat treatment, surperficial roll flute, surface hardness is high, significantly improve the antiwear property of the flank of tooth and the flexural strength of gear, the gear of identical modulus (than 45 steel high frequency hardenings) can improve more than 50%, and front cover 1 and rear end cover 2 adopt an aluminum-magnesium alloy die casting to form, lightweight, intensity is high, bearing capacity is large.Although therefore housing profile is constant, as long as convert different modules, the number of teeth, just different drive ratios (from 1:4 to 1:8) and output torque can be realized.
The gear of driving gear 3, jack shaft 8, input shaft 9, intermediate gear 10 is all designed to involute helical gear, and the contact ratio of gears meshing is large, and noise in operating is low.
Differential casing 4, differential gear 5, planetary pinion 6, basin-shaped washer 7 and semiaxis 11 etc. form differential mechanism, the vehicle right and left output shaft connected from the both sides differential gear 5 in differential mechanism can rotate with different rotating speeds, meets automobile two sidecar wheel has speed difference requirement when turning.
The working principle of this retarder is: motor power is delivered to differential casing 4 by the gear connection of input shaft 9, intermediate gear 10, jack shaft 8, driving gear 3, be delivered to vehicle right and left output shaft from differential casing 4 again, achieve car deceleration, increase the requirement of moment of torsion transferring power; Because the planetary pinion 6 in differential mechanism both can revolve round the sun with differential casing 4, again can rotation, therefore when automobile turning, the short resistance be subject to of single wheel operating range just can produce rotation reduction of speed greatly, meets automobile two sidecar wheel has speed difference requirement when turning.
Claims (8)
1. pure electric automobile carries a retarder with strong, comprises front cover (1) and rear end cover (2), it is characterized in that:
Front cover (1) and rear end cover (2) close up formation speed reducer housing, and speed reducer housing is for supporting the input shaft (9) that can rotate, jack shaft (8), the differential mechanism that arrange in it;
Input shaft (9) for connecting external impetus axle is located in speed reducer housing, input shaft (9) is meshed with intermediate gear (10) by the gear on input shaft (9) cylindrical, and intermediate gear (10) is socketed in jack shaft (8) and above also jack shaft (8) can be driven to rotate together;
Jack shaft (8) is engaged with driving gear (3) by the gear on jack shaft (8) cylindrical, and driving gear (3) is fixedly connected with differential mechanism, and differential mechanism can be driven to rotate together;
Differential mechanism is used for connecting the left and right output shaft of automobile respectively and can rotates with different rotating speeds to make the left and right output shaft of automobile.
2. pure electric automobile as claimed in claim 1 carries retarder with strong, it is characterized in that, differential mechanism comprises differential casing (4), differential gear (5), planetary pinion (6), basin-shaped washer (7) and semiaxis (11);
The shape of differential casing (4) is ball caged, there is a fin (401) the upper and lower center deviation side of periphery of ball cage, and driving gear (3) is fixed on fin (401) end face of differential casing (4); Respectively have a boss about ball cage, ball cage left and right boss cylindrical is respectively socketed bearing, is carried on front cover (1) and rear end cover (2) rotationally by bearing; Respectively have hole in the middle of the boss of ball cage left and right, enter for automobile output shaft; The inner headed face of ball cage respectively has a boss up and down, upper and lower raised head face is spherical shape, offset with basin-shaped washer (7) face, pommel, the upper and lower center of ball cage has the through hole of up/down perforation, semiaxis (11) is socketed with in through hole, boss center, ball cage inner headed face left and right respectively has a cylindrical hole, is socketed differential gear (5) outer step cylindrical in hole respectively;
Differential gear (5) is provided with two, symmetrical distribution, cylindrical one end is cylndrical surface and is socketed in boss endoporus cylndrical surface, differential casing (4) inwall left and right, and the other end is processed with umbrella shape involute gear and is meshed with planetary pinion (6) umbrella shape involute gear; Each differential gear (5) endoporus is used for being connected with automobile output shaft;
Planetary pinion (6) is provided with two, symmetrical up and down, Excircle machining umbrella shape involute gear is meshed with differential gear (5) umbrella shape involute gear, and endoporus is cylindrical hole and is socketed on semiaxis (11) cylindrical, can rotate around semiaxis (11); Top end is spherical and offsets with basin-shaped washer (7) sphere;
Basin-shaped washer (7) is provided with two, symmetrical up and down, and one side offsets with the upper and lower raised head face of differential casing inwall, and another side and planetary pinion (6) top end offset;
Semiaxis (11) two ends are socketed in the through hole of differential casing (4) up/down perforation, and the upper and lower symmetry of middle cylindrical is socketed basin-shaped washer (7) and planetary pinion (6) respectively.
3. pure electric automobile as claimed in claim 1 or 2 carries retarder with strong, it is characterized in that,
The gear of driving gear (3), jack shaft (8), input shaft (9), intermediate gear (10) is involute helical gear.
4. pure electric automobile as claimed in claim 2 carries retarder with strong, it is characterized in that:
On front cover (1) and rear end cover (2), correspondence is provided with three bearing holes and is socketed bearing respectively, is respectively used to supporting differential casing (4), jack shaft (8) and input shaft (9) from bottom to top; The intermediate bearing aperture of front cover (1) is blind hole, and upper and lower two end axles bearing bore is for having step through-hole and being socketed with seal ring, and the centre of rear end cover (2) and upper shaft bearing bore are blind hole, and bottom end bearing hole is for having step through-hole and being socketed with seal ring.
5. pure electric automobile as claimed in claim 1 carries retarder with strong, it is characterized in that:
The straight spline joint external impetus axle of input shaft (9) by its endoporus is processed.
6. pure electric automobile as claimed in claim 1 carries retarder with strong, it is characterized in that:
The straight spline joint automobile output shaft of differential gear (5) by its endoporus is processed.
7. pure electric automobile as claimed in claim 1 carries retarder with strong, it is characterized in that:
The material of driving gear (3), differential gear (5), planetary pinion (6), jack shaft (8), input shaft (9) and intermediate gear (10) is through the heat treated alloyed steel of carbonitriding.
8. pure electric automobile as claimed in claim 1 carries retarder with strong, it is characterized in that:
Rear end cover (2) is provided with drain oil (12) and oil outlet (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520012829.3U CN204387277U (en) | 2015-01-08 | 2015-01-08 | Pure electric automobile carries retarder with strong |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520012829.3U CN204387277U (en) | 2015-01-08 | 2015-01-08 | Pure electric automobile carries retarder with strong |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204387277U true CN204387277U (en) | 2015-06-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520012829.3U Expired - Fee Related CN204387277U (en) | 2015-01-08 | 2015-01-08 | Pure electric automobile carries retarder with strong |
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| Country | Link |
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| CN (1) | CN204387277U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104595467A (en) * | 2015-01-08 | 2015-05-06 | 无锡市神力齿轮冷挤有限公司 | Strong load reducer for pure electric vehicle |
| CN105370834A (en) * | 2015-12-11 | 2016-03-02 | 陕西法士特齿轮有限责任公司 | Single reduction gear for electric automobile |
| CN106051127A (en) * | 2016-07-28 | 2016-10-26 | 北京新能源汽车股份有限公司 | Speed reducer casing |
| CN114393377A (en) * | 2021-12-21 | 2022-04-26 | 安徽星瑞齿轮传动有限公司 | New energy automobile speed reducer and differential assembling method for grinding main reduction gear |
-
2015
- 2015-01-08 CN CN201520012829.3U patent/CN204387277U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104595467A (en) * | 2015-01-08 | 2015-05-06 | 无锡市神力齿轮冷挤有限公司 | Strong load reducer for pure electric vehicle |
| CN105370834A (en) * | 2015-12-11 | 2016-03-02 | 陕西法士特齿轮有限责任公司 | Single reduction gear for electric automobile |
| CN106051127A (en) * | 2016-07-28 | 2016-10-26 | 北京新能源汽车股份有限公司 | Speed reducer casing |
| CN114393377A (en) * | 2021-12-21 | 2022-04-26 | 安徽星瑞齿轮传动有限公司 | New energy automobile speed reducer and differential assembling method for grinding main reduction gear |
| CN114393377B (en) * | 2021-12-21 | 2023-10-31 | 安徽星瑞齿轮传动有限公司 | New energy automobile speed reducer and differential assembly method for grinding main speed reducing gear |
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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: 20150610 Termination date: 20190108 |