CN203888610U - Wheel side drive axle - Google Patents
Wheel side drive axle Download PDFInfo
- Publication number
- CN203888610U CN203888610U CN201420335227.7U CN201420335227U CN203888610U CN 203888610 U CN203888610 U CN 203888610U CN 201420335227 U CN201420335227 U CN 201420335227U CN 203888610 U CN203888610 U CN 203888610U
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- CN
- China
- Prior art keywords
- drive axle
- wheel
- wheel side
- reduction gear
- housing
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Abstract
The utility model discloses a wheel side drive axle. The wheel side drive axle comprises an axle housing and two driving systems symmetrically arranged at the two ends of the axle housing. Each driving system comprises a wheel side speed reducer and a wheel side motor. Cases of the wheel side motors are fixedly connected to case end surfaces at the input ends of the wheel side speed reducers, and a cavity formed by the cases and the case end surfaces in an enclosure mode serves as the work cavity of the wheel side motors. According to the wheel side drive axle, the cases of the wheel side motors are directly installed on cases of the wheel side speed reducers. Compared with a traditional wheel side drive axle, the distance twice the thickness of a motor end cover is reserved between the end surfaces of the two wheel side motors, and the passage width of bodies of urban buses and the like is increased further.
Description
Technical field
The utility model relates to drive axle, relates in particular to the wider wheel limit drive axle of distance between a kind of two wheel motor end faces.
Background technology
Traditional drive axle mainly comprises motor (or driving engine), retarder, diff, semiaxis and axle housing, retarder and diff are positioned at the axle housing middle part of drive axle, especially for city bus of back-wheel drive etc., take car base space, for this reason, need to raise car body floor or floor step is set, cannot meet city bus etc. for car body low floor and the wheel chair access fat pipe requirement of passage.
For meeting above-mentioned requirements, mostly adopt wheel limit drive axle for city bus etc., as depicted in figs. 1 and 2, two drive systems 2 that it mainly comprises axle housing 1 and is positioned at axle housing 1 two ends, two driving system structures are identical and be arranged symmetrically with, described drive system comprises wheel motor 3 and hub reduction case 4 etc., and wheel motor orders about corresponding wheel by hub reduction case, and wheel is provided with brake equipment.With respect to traditional drive axle, wheel limit drive axle has been removed retarder and the diff etc. at conventional drive axle shell middle part, has met city bus etc. for car body low floor and the wheel chair access fat pipe requirement of passage.In the time of concrete installation, the width of passage depends primarily on two distance d between motor end face, referring to Fig. 1, larger apart from d, the attainable width of passage is larger, so the distance d between two wheel motor end faces is a significant design index in the drive axle design of wheel limit in the drive axle of wheel limit.
The wheel motor of current wheel limit drive axle and hub reduction case are all to adopt independently conventional products and model, and the housing 6 of the end cap of wheel motor 5 and hub reduction case is fixedly connected with and completes assembling.The end cap of wheel motor has certain thickness h, will certainly take certain transverse distance, and therefore, the distance d in the drive axle of wheel limit between two wheel motor end faces still has the space that can further increase.
Utility model content
The purpose of this utility model is to provide a kind of wheel limit drive axle, to solve the less technical matters of distance between two wheel motor end faces in the drive axle of wheel limit.
Based on above-mentioned purpose, the utility model provides a kind of wheel limit drive axle, the described limit drive axle of taking turns comprises axle housing and is positioned at symmetrically arranged two drive systems in axle housing two ends, described drive system comprises wheel reduction gear and wheel motor, the casing of described wheel motor is fixedly connected on the housing end face of described wheel reduction gear input end, the work chamber that the chamber that described casing and described housing end face surround is described wheel motor.
Optionally, the casing of described wheel motor is fixedly connected on the housing end face of described wheel reduction gear input end by screw.
Optionally, on the outer, casing end of described wheel motor, be provided with mounting hole, on the housing end face of described wheel reduction gear input end, be provided with tapped bore, described mounting hole and the corresponding setting one by one of described tapped bore, for installing described screw.
Optionally, the shell ends mask of described wheel reduction gear input end has bearing seat, and the output shaft of described wheel motor extends in described wheel reduction gear through described bearing seat, and the bearing on described output shaft is arranged in described bearing seat.
Optionally, the position transduser of described wheel motor is arranged in described bearing seat.
Optionally, the housing of described bearing seat and described wheel reduction gear is integrated casting.
Optionally, described bearing seat is fixed on the housing end face of described wheel reduction gear input end by screw or pin.
In sum, the wheel limit drive axle that the utility model provides, the casing of wheel motor is directly installed on the housing of wheel reduction gear, than traditional wheel limit drive axle, between two wheel motor end faces of taking turns limit drive axle of the present utility model, increase the distance that doubles electric motor end cap thickness, realized further widening of the vehicle body passage widths such as city bus.
The wheel limit drive axle that the utility model provides, wheel reduction gear housing is improved, the casing of wheel motor and the housing of wheel reduction gear are directly fixedly mounted, optimize the compact conformation degree of wheel limit drive axle, and be provided with bearing seat on the housing end face of wheel reduction gear, the INT COMP such as stator, rotor of wheel motor is avoided electric motor end cap directly and wheel reduction gear carries out coordinating operation, has simplified mechanical drive link, has improved the operating efficiency of wheel limit drive axle.
Brief description of the drawings
Fig. 1 is the structure principle chart of tradition wheel limit drive axle;
Fig. 2 is the structural representation of the drive system of tradition wheel limit drive axle;
Fig. 3 is the shaft side figure of the utility model wheel limit drive axle;
Fig. 4 is the front view of the utility model wheel limit drive axle;
Fig. 5 is the driving system structure schematic diagram of the utility model wheel limit drive axle;
Fig. 6 is the part sectional view of the drive system of the utility model wheel limit drive axle;
Fig. 7 be Fig. 6 analyse and observe part enlarged drawing.
Detailed description of the invention
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing, the utility model embodiment is described in further detail.
Referring to Fig. 3 and Fig. 4, the utility model discloses a kind of wheel limit drive axle, the described limit drive axle of taking turns comprises axle housing 100 and is positioned at symmetrically arranged two drive systems 200 in axle housing 100 two ends, the structure of described two drive systems 200 is identical, and described drive system 200 mainly comprises wheel reduction gear 210 and wheel motor 220.Wherein, the casing 221 of described wheel motor 220 is fixedly connected on the housing end face 211 of described wheel reduction gear 210 input ends, also be, the housing end face 211 of described wheel reduction gear 210 input ends is simultaneously as the end cap of described wheel motor 220, and described casing 221 is the work chamber of described wheel motor 220 with the chamber that described housing end face 211 surrounds.As shown in Figure 4, the limit drive axle of taking turns of the present utility model has saved electric motor end cap, therefore, between the end face of two wheel motors 220, distance d value obviously increases, the value increasing is the twice of electric motor end cap one-tenth-value thickness 1/10 h, between the end face of two wheel motors 220, distance d is as solid line mark in Fig. 4, and electric motor end cap one-tenth-value thickness 1/10 h is as the dotted line mark in Fig. 1 and Fig. 4.Based on this, the limit drive axle of taking turns of the present utility model is applied to city bus etc., can further increase the width of vehicle body passage.
As shown in Fig. 5-7, be an embodiment of the present utility model.The drive system of Fig. 5 and 6 axle housing one end for the utility model wheel limit drive axle, identical the repeating no more of driving system structure of the axle housing other end.Fig. 7 is the enlarged diagram that in Fig. 6, part is cutd open by office.
In this embodiment, the casing 221 of described wheel motor 220 is fixedly connected on the housing end face 211 of described wheel reduction gear 210 input ends by screw.Can be for example, on the housing end face 211 of described wheel reduction gear 210 input ends, tapped bore is set, on casing 221 outers, end of this tapped bore and described wheel motor 220, with the suitable corresponding setting of default tapped bore of the end cap of conventional motors, realizing screw fixes, this scheme can directly be used the casing 221 of existing wheel motor 220, reduces costs.In another possibility of this embodiment, referring to Fig. 7, can also be for example, on casing 221 outers, end of described wheel motor 220, be provided with mounting hole 222 (for example counter sink), on the housing end face 211 of described wheel reduction gear 210 input ends, be provided with tapped bore 212, described mounting hole 222 and the corresponding setting one by one of described tapped bore 212, be used for installing described screw, this scheme is improved the casing 221 of described wheel motor 220, this scheme changes the tapped bore of conventional motors into mounting hole 222, screw is bolted in to the tapped bore 212 on the housing end face 211 of described wheel reduction gear 210 input ends through this mounting hole 222, there is the facility of installation, fixing failure-free advantage.
In this embodiment, the housing end face 211 of described wheel reduction gear 210 input ends has bearing seat 213.The output shaft 223 of described wheel motor 220 extends in described wheel reduction gear 210 through described bearing seat 213, bearing 2231 on described output shaft 223 is arranged in described bearing seat 213, the output shaft 223 of described wheel motor 220 can be avoided electric motor end cap and the retarder that is directly connected, and has improved the compactness connecting and has improved driving efficiency.In a preferred version of this embodiment, the position transduser of described wheel motor 220 is arranged in described bearing seat 213, further improves the compact conformation degree of the utility model wheel limit drive axle.
In a possibility of this embodiment, described bearing seat 213 is integrated casting with the housing of described wheel reduction gear 210, to reduce the composition first number of the utility model wheel limit drive axle, reduces assembly difficulty, and has improved the precision of assembling.
In another possibility of this embodiment, described bearing seat 213 is fixed on the housing end face 211 of described wheel reduction gear 210 input ends by screw or pin, can change as required the bearing seat 213 of different model, to adapt to the wheel motor 220 of different model, there is higher Applicable scope.
To sum up, the limit drive axle of taking turns of the present utility model, by the housing of wheel reduction gear 210 is improved, change the assembling mode of wheel reduction gear 210 with wheel motor 220, increase the distance d between the end face of two symmetrical wheel motors 220, in the time being applied to city bus etc., can further widen the passage width of vehicle body.And the utility model has been set up bearing seat 213 on the housing end face 211 of wheel reduction gear 210, guaranteeing, on the basis being in transmission connection of wheel reduction gear 210 and wheel motor 220, because having reduced transmission link, to have improved to a certain extent driving efficiency.
The foregoing is only preferred embodiment of the present utility model, be not intended to limit protection domain of the present utility model.All any amendments of doing, be equal to replacement, improvement etc. within spirit of the present utility model and principle, be all included in protection domain of the present utility model.
Claims (7)
1. a wheel limit drive axle, the described limit drive axle of taking turns comprises axle housing and is positioned at symmetrically arranged two drive systems in axle housing two ends, described drive system comprises wheel reduction gear and wheel motor, it is characterized in that,
The casing of described wheel motor is fixedly connected on the housing end face of described wheel reduction gear input end, the work chamber that the chamber that described casing and described housing end face surround is described wheel motor.
2. the limit drive axle of taking turns according to claim 1, is characterized in that, the casing of described wheel motor is fixedly connected on the housing end face of described wheel reduction gear input end by screw.
3. the limit drive axle of taking turns according to claim 2, it is characterized in that, on the outer, casing end of described wheel motor, be provided with mounting hole, on the housing end face of described wheel reduction gear input end, be provided with tapped bore, described mounting hole and the corresponding setting one by one of described tapped bore, for installing described screw.
4. according to the wheel limit drive axle described in claim 1-3 any one, it is characterized in that, the shell ends mask of described wheel reduction gear input end has bearing seat, the output shaft of described wheel motor extends in described wheel reduction gear through described bearing seat, and the bearing on described output shaft is arranged in described bearing seat.
5. the limit drive axle of taking turns according to claim 4, is characterized in that, the position transduser of described wheel motor is arranged in described bearing seat.
6. the limit drive axle of taking turns according to claim 4, is characterized in that, the housing of described bearing seat and described wheel reduction gear is integrated casting.
7. the limit drive axle of taking turns according to claim 4, is characterized in that, described bearing seat is fixed on the housing end face of described wheel reduction gear input end by screw or pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420335227.7U CN203888610U (en) | 2014-06-20 | 2014-06-20 | Wheel side drive axle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420335227.7U CN203888610U (en) | 2014-06-20 | 2014-06-20 | Wheel side drive axle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203888610U true CN203888610U (en) | 2014-10-22 |
Family
ID=51715054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420335227.7U Active CN203888610U (en) | 2014-06-20 | 2014-06-20 | Wheel side drive axle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203888610U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104015606A (en) * | 2014-06-20 | 2014-09-03 | 精进电动科技（北京）有限公司 | Rim drive axle |
| CN108528208A (en) * | 2017-03-06 | 2018-09-14 | 纳博特斯克有限公司 | Retarder, driving wheel and conveying trolley |
-
2014
- 2014-06-20 CN CN201420335227.7U patent/CN203888610U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104015606A (en) * | 2014-06-20 | 2014-09-03 | 精进电动科技（北京）有限公司 | Rim drive axle |
| CN108528208A (en) * | 2017-03-06 | 2018-09-14 | 纳博特斯克有限公司 | Retarder, driving wheel and conveying trolley |
| CN108528208B (en) * | 2017-03-06 | 2023-12-22 | 纳博特斯克有限公司 | Driving wheel and transport trolley |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100016 Beijing City, Chaoyang District Road No. 5 (Putian Industrial Science and Technology Park Building No. 7) Patentee after: Sophisticated electric Polytron Technologies Inc Address before: 100016 Beijing City, Chaoyang District Road No. 5 (Putian Industrial Science and Technology Park Building No. 7) Patentee before: Jing-Jin Electric Technologies (Beijing) Co., Ltd. |