CN211032048U - Double-motor rear drive axle of kart - Google Patents
Double-motor rear drive axle of kart Download PDFInfo
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- CN211032048U CN211032048U CN201921936785.8U CN201921936785U CN211032048U CN 211032048 U CN211032048 U CN 211032048U CN 201921936785 U CN201921936785 U CN 201921936785U CN 211032048 U CN211032048 U CN 211032048U
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- half shaft
- motor
- positioning spacer
- spacer bush
- shaft
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Abstract
The utility model relates to an axle field especially relates to a kart bi-motor rear drive axle. The drive axle comprises a supporting seat, an axle connected with wheels, a brake disc and brake calipers, wherein the brake disc and the brake calipers are used for braking; the outer layers of the left positioning spacer bush and the right positioning spacer bush are sleeved with a connecting shaft sleeve, the left positioning spacer bush and the right positioning spacer bush are both rotatably connected with the connecting shaft sleeve through bearings, two ends of each bearing are respectively in limit connection through elastic check rings, and a gap is formed between a left half shaft and a right half shaft in the connecting shaft sleeve; and the left half shaft and the right half shaft are in transmission connection with the first motor and the second motor respectively. The drive axle can realize a good differential effect, has good universality and is suitable for transforming a single motor chassis.
Description
Technical Field
The utility model relates to an axle field especially relates to a kart bi-motor rear drive axle.
Background
An axle is a vehicle structure connected with a frame through a suspension, and wheels are installed at two ends of the axle. The axle is used for bearing the load of the vehicle and maintaining the normal running of the vehicle on the road. According to different driving modes, the axle is also divided into a steering axle, a driving axle, a steering driving axle and a supporting axle. In the traditional fuel kart, a gasoline engine is utilized to drive a whole rear shaft to rotate through a chain at the rear axle, and the axle has no differential mechanism, so that the driving and the operation of the whole vehicle are difficult, and the loss of tires is large. The single-motor electric kart changes the driving mode into motor driving, but structurally continues the characteristics of the fuel kart, and the rear wheel has no differential action. The structure and arrangement mode of a traditional double-motor drive axle with a differential mechanism are different from those of a single-motor axle, and if a single-motor chassis is improved into a double-motor arrangement structure, the differential effect of a vehicle is improved; large-scale modification of the axle and the chassis is required, and the modification cost is high.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a driving axle behind two motors of kart is provided, good differential effect can be realized to this driving axle, and has good commonality, is fit for being used for reforming transform single motor chassis.
In order to solve the technical problem, the utility model discloses a technical scheme be:
A kart double-motor rear drive axle comprises a supporting seat, an axle connected with wheels, a brake disc used for braking and brake calipers, wherein the axle comprises a left half shaft and a right half shaft, one inner sides of the left half shaft and the right half shaft are connected through a half shaft connector, and the half shaft connector comprises a left positioning spacer bush and a right positioning spacer bush which are sleeved on the peripheries of the left half shaft and the right half shaft; the outer layers of the left positioning spacer bush and the right positioning spacer bush are sleeved with a connecting shaft sleeve, the left positioning spacer bush and the right positioning spacer bush are both rotatably connected with the connecting shaft sleeve through bearings, two ends of each bearing are respectively in limit connection through elastic check rings, and a gap is formed between a left half shaft and a right half shaft in the connecting shaft sleeve; and the left half shaft and the right half shaft are in transmission connection with the first motor and the second motor respectively.
Preferably, the number of the bearings connected to the left positioning spacer bush and the right positioning spacer bush is two, and the bearings are respectively located at the end parts of the left positioning spacer bush and the right positioning spacer bush and at the end part of the connecting shaft sleeve.
Further preferably, the bearing is a deep groove ball bearing.
Further preferably, the elastic check rings connected with the two ends of the bearing are respectively a hole elastic check ring and a shaft elastic check ring; and the surfaces of the left positioning spacer bush and the right positioning spacer bush are provided with positioning shaft shoulders for connecting the elastic washer for the hole and the elastic retainer ring for the shaft.
Preferably, the chain wheels are fixedly connected in the left half shaft and the right half shaft, and the chain wheels on the left half shaft and the right half shaft are respectively in transmission connection with the first motor and the second motor through chains.
Further preferably, the chain wheel and the brake disc connected to the left half shaft and the right half shaft are circumferentially positioned by a flat key.
Preferably, brake caliper, first motor and second motor all pass through bolt and supporting seat fixed connection.
The utility model has the advantages as follows:
The double-motor rear drive axle is relatively simple in structure and high in stability; the differential performance of the rear wheels of the vehicle can be obviously improved, and the operability and the safety of the vehicle are improved; the vehicle has good trafficability to various terrains; and wear on the tire can be reduced.
The rear axle structure and the special arrangement mode thereof have good universality, can be used for transforming a single motor chassis, and has smaller modification range on the single motor vehicle chassis, a frame and other structures in the transformation process and higher generalization degree.
Drawings
FIG. 1 is a schematic view of the overall structure of the rear drive axle in the present embodiment;
FIG. 2 is a schematic view of a partial structure of the half-shaft connector of the present embodiment;
FIG. 3 is a schematic view of the structural connections of the right half shaft, the brake disc, the brake caliper, and the like in this embodiment;
Labeled as: 1. a supporting seat; 2. an axle; 3. a wheel; 4. a brake disc; 5. a brake caliper; 6. a half shaft connector; 7. a sprocket; 21. a left half shaft; 22. a right half shaft; 62. a bearing; 64. connecting the shaft sleeve; 70. a chain; 81. a first motor; 82. a second motor; 611. a left positioning spacer bush; 612. a right positioning spacer bush; 631. a circlip for a hole; 632. circlip for shaft.
Detailed Description
The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.
In the description of the present invention, it is to be noted that, unless otherwise specified, "a plurality" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "top", "bottom", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; the connection can be mechanical connection or circuit connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood as the case may be, by those of ordinary skill in the art.
Examples
A kart double-motor rear drive axle comprises a support seat 1, an axle 2 connected with wheels 3, a brake disc 4 used for braking and a brake caliper 5, wherein the axle 2 comprises a left half shaft 21 and a right half shaft 22, one inner sides of the left half shaft 21 and the right half shaft 22 are connected through a half shaft connector 6, and the half shaft connector 6 comprises a left positioning spacer 611 and a right positioning spacer 612 sleeved on the peripheries of the left half shaft 21 and the right half shaft 22; the outer layers of the left positioning spacer 611 and the right positioning spacer 612 are sleeved with a connecting shaft sleeve 64, the left positioning spacer 611 and the right positioning spacer 612 are rotatably connected with the connecting shaft sleeve 64 through a bearing 62, two ends of the bearing 62 are respectively in limit connection through elastic retaining rings, and a gap is formed between the left half shaft 21 and the right half shaft 22 in the connecting shaft sleeve 64; the left half shaft 21 and the right half shaft 22 are respectively connected with a first motor 81 and a second motor 82 in a transmission way.
The number of the bearings 62 connected to the left positioning spacer 611 and the right positioning spacer 612 is two, and the two bearings are respectively located at the end portions of the left positioning spacer 611 and the right positioning spacer 612 and the end portion of the connecting shaft sleeve 64.
Deep groove ball bearings are selected for the bearings 62. The bearing 62 has low frictional resistance and high rotational speed, and can be used for a member bearing a radial load or a combined load acting simultaneously in the radial and axial directions, and also can be used for a member bearing an axial load.
The rear drive axle divides an axle 2 into a left half shaft 21 and a right half shaft 22, and the whole rear drive axle comprises a support seat 1, the axle 2, a half shaft connector 6, a chain wheel 7, a chain 70, a wheel 3, a brake disc 4, a brake caliper 5 and the like; the rear drive axle is fixedly connected with the chassis of the vehicle through a supporting seat 1. The half-shaft connector 6 is composed of a left positioning spacer 611, a right positioning spacer 612, bearings 62, a circlip, a connecting shaft sleeve 64 and the like, the left half-shaft 21 and the right half-shaft 22 are respectively connected with the connecting shaft sleeve 64 through the two bearings 62 in a supporting manner, and the two sides of the bearings 62 are respectively limited by the circlip and a shaft shoulder on the positioning spacer. Displacement of the bearing 62 is avoided. While maintaining the clearance between the left axle shaft 21 and the right axle shaft 22. Under the connecting action of the half-axle connector 6, the left half-axle 21 and the right half-axle 22 can be supported, and meanwhile, the left half-axle and the right half-axle can be guaranteed to rotate freely relative to each other, so that differential rotation of rear wheels of the vehicle is realized. The driving control performance of the vehicle is greatly improved.
In this embodiment, the elastic collars connected to the two ends of the bearing 62 are respectively a hole elastic collar 631 and a shaft elastic collar 632; the surfaces of the left positioning spacer 611 and the right positioning spacer 612 are provided with positioning shoulders for connecting the hole elastic washer 631 and the shaft elastic collar 632.
The chain wheels 7 are fixedly connected in the left half shaft 21 and the right half shaft 22, and the chain wheels 7 on the left half shaft 21 and the right half shaft 22 are respectively in transmission connection with a first motor 81 and a second motor 82 through chains 70.
The left half shaft 21 and the right half shaft 22 are respectively driven by a first motor 81 and a second motor 82, and the motors and the axle 2 are driven by a chain wheel 7 and a chain 70, so that the driving mode is more stable; the independent transmission of the left half shaft 21 and the right half shaft 22 can enable a driver to independently control the two wheels 3 respectively, and a differential effect is achieved.
The sprocket 7 and the brake disc 4 connected to the left half-shaft 21 and the right half-shaft 22 are circumferentially positioned by flat keys.
The brake caliper 5, the first motor 81 and the second motor 82 are fixedly connected with the support seat 1 through bolts.
To sum up, the utility model discloses a two motor rear drive axles's structure is simple relatively, and stability is high, can show the differential performance that promotes the vehicle rear wheel, improves the operability and the security of vehicle for the vehicle all has good trafficability characteristic to multiple topography, and can reduce the wearing and tearing to the tire.
And simultaneously, the utility model discloses a rear axle structure and special arrangement mode make it have fine commonality, can be used for reforming transform single motor chassis, and the modification range to single motor vehicle chassis and frame isotructure is less in the transformation process, and the universalization degree is higher.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.
Claims (7)
1. The utility model provides a driving axle behind two motors of kart, includes the supporting seat, connects the axletree of wheel to and be used for the brake disc and the brake caliper of braking, its characterized in that: the axle comprises a left half shaft and a right half shaft, one inner sides of the left half shaft and the right half shaft are connected through a half shaft connector, and the half shaft connector comprises a left positioning spacer bush and a right positioning spacer bush which are sleeved on the peripheries of the left half shaft and the right half shaft; the outer layers of the left positioning spacer bush and the right positioning spacer bush are sleeved with a connecting shaft sleeve, the left positioning spacer bush and the right positioning spacer bush are both rotatably connected with the connecting shaft sleeve through bearings, two ends of each bearing are respectively in limit connection through elastic check rings, and a gap is formed between a left half shaft and a right half shaft in the connecting shaft sleeve; and the left half shaft and the right half shaft are in transmission connection with the first motor and the second motor respectively.
2. The kart double-motor rear drive axle according to claim 1, characterized in that: the number of the bearings connected to the left positioning spacer bush and the right positioning spacer bush is two, and the bearings are respectively located at the end parts of the left positioning spacer bush and the right positioning spacer bush and at the end part of the connecting shaft sleeve.
3. The kart double-motor rear drive axle according to claim 2, characterized in that: the bearing is a deep groove ball bearing.
4. The kart double-motor rear drive axle according to claim 3, characterized in that: the elastic check rings connected with the two ends of the bearing are respectively used as a hole elastic check ring and a shaft elastic check ring; and the surfaces of the left positioning spacer bush and the right positioning spacer bush are provided with positioning shaft shoulders for connecting the elastic washer for the hole and the elastic retainer ring for the shaft.
5. The kart double-motor rear drive axle according to claim 1, characterized in that: and chain wheels are fixedly connected in the left half shaft and the right half shaft, and the chain wheels on the left half shaft and the right half shaft are respectively in transmission connection with the first motor and the second motor through chains.
6. The kart double-motor rear drive axle according to claim 5, characterized in that: the chain wheel and the brake disc connected to the left half shaft and the right half shaft are circumferentially positioned through flat keys.
7. The kart double-motor rear drive axle according to claim 1, characterized in that: brake caliper, first motor and second motor all pass through bolt and supporting seat fixed connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921936785.8U CN211032048U (en) | 2019-11-11 | 2019-11-11 | Double-motor rear drive axle of kart |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921936785.8U CN211032048U (en) | 2019-11-11 | 2019-11-11 | Double-motor rear drive axle of kart |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211032048U true CN211032048U (en) | 2020-07-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921936785.8U Active CN211032048U (en) | 2019-11-11 | 2019-11-11 | Double-motor rear drive axle of kart |
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| CN (1) | CN211032048U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115503398A (en) * | 2022-11-22 | 2022-12-23 | 江苏速豹动力科技有限公司 | Double-motor distributed driving steering axle with wheel-side speed reducer |
-
2019
- 2019-11-11 CN CN201921936785.8U patent/CN211032048U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115503398A (en) * | 2022-11-22 | 2022-12-23 | 江苏速豹动力科技有限公司 | Double-motor distributed driving steering axle with wheel-side speed reducer |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 314000 room 109, building 2, West District, Haiyan science and Technology Pioneer Park, No. 211, Yanbei Road, Wuyuan street, Haiyan County, Jiaxing City, Zhejiang Province Patentee after: Jiaxing Suyu Technology Co.,Ltd. Address before: 314000 room 109, building 2, West District, Haiyan science and Technology Pioneer Park, No. 211, Yanbei Road, Wuyuan street, Haiyan County, Jiaxing City, Zhejiang Province Patentee before: Zhejiang Suyu Technology Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |