Automobile chassis integrated module system

Abstract

An integrated module system of automobile chassis in the field of automobile chassis technology includes tires, wheel hubs, wheel hub motors, shock absorbers, dust covers, speed reducers, steering motors, and vehicle body connection plates. The tires are arranged on the wheel hubs; the driving end of the wheel hub motor is connected to the wheel hub to drive the wheel hub to rotate; the lower end of the shock absorber is connected to the wheel hub motor housing, and the upper end is connected to the speed reducer; the dust cover is arranged on the outside of the shock absorber; one end of the speed reducer is connected to the shock absorber, and the other end is connected to the vehicle body connection plate; the steering motor is arranged in the speed reducer and connected to the shock absorber. In the present invention, the wheel hub motor, the shock absorber, and the speed reducer are highly integrated into a whole to form a high-efficiency, high-power-density drive module with a relatively light overall weight, which effectively reduces the unsprung mass of the entire vehicle. The present invention is reasonably designed, and the interface with the vehicle body adopts a quick-connect method, which is convenient for quick disassembly and assembly.

Description

Technical Field

[0001] The present invention relates to a module system in the field of automobile chassis technology, in particular to an automobile chassis integrated module system that highly integrates a wheel hub motor, a shock absorbing device and a deceleration device into a whole. Background Art

[0002] The wheel hub motor technology is also known as the in-wheel motor technology. Its biggest feature is that the power, transmission and braking devices are all integrated into the wheel hub, thus greatly simplifying the mechanical part of the electric vehicle. In the 1970s, this technology was applied in fields such as mining transport vehicles. As for the wheel hub motors used in passenger cars, Japanese manufacturers started the research and development of this technology earlier and are currently in a leading position. International auto giants including General Motors and Toyota have also been involved in this technology.

[0003] In my country, the research on wheel hub motors is mostly concentrated in colleges and universities, and the products are all electric vehicles. However, the research on wheel hub motor driving technology is not yet mature, especially in the development of high-torque wheel hub motors, which still has a certain gap with foreign advanced products. Therefore, my country still needs to increase investment in the research and development of wheel hub motor technology, improve core competitiveness, narrow the gap, and strive to reach the world's advanced level. At present, the wheel hub motor greatly increases the unsprung mass and the rotational inertia of the wheel hub, which is not conducive to the vehicle's handling performance. In the existing technology, there is no technology that highly integrates the wheel hub motor, shock absorber and deceleration device. Summary of the invention

[0004] In view of the deficiencies of the prior art, the present invention proposes an automobile chassis integrated module system, which highly integrates the wheel hub motor, the shock absorbing device and the reduction device into a whole to form an efficient and high power density drive module, thereby effectively reducing the unsprung mass of the entire vehicle.

[0005] The present invention is realized by the following technical scheme, which includes a tire, a wheel hub, a wheel hub motor, a shock absorber, a dust cover, a speed reducer, a steering motor, and a vehicle body connecting plate. The tire is arranged on the wheel hub; the driving end of the wheel hub motor is connected to the wheel hub to drive the wheel hub to rotate; the lower end of the shock absorber is connected to the wheel hub motor housing, and the upper end is connected to the speed reducer; the dust cover is arranged on the outside of the shock absorber; one end of the speed reducer is connected to the shock absorber, and the other end is connected to the vehicle body connecting plate; the steering motor is arranged in the speed reducer and connected to the shock absorber.

[0006] Furthermore, in the present invention, the shock absorbing device includes a shock absorbing device housing, a shock absorbing spring, and a shock absorber. The shock absorbing spring and the shock absorber are both arranged in the shock absorbing device housing, the shock absorber is arranged on the center line of the shock absorbing device housing, and the shock absorbing spring is arranged on the outside of the shock absorber.

[0007] Furthermore, in the present invention, the cross section of the shock absorbing device housing is a rectangular structure, and the shock absorbing device housing is a stepped structure, with a smaller cross-sectional area at the upper end.

[0008] Furthermore, in the present invention, the reduction gear includes a reduction gear housing, a planetary gear carrier, a bearing, a sun gear, a bridge gear, an end cover, a cover plate, and a loosening bolt; one end of the reduction gear housing is a circular structure, and the other end is a rectangular structure; the upper end of the shock absorber housing and the steering motor are both arranged in the rectangular structure of the reduction gear housing; the planetary gear carrier, the bearing, and the sun gear are superimposed and arranged in the circular structure of the reduction gear housing; the bridge gear is arranged in the reduction gear housing and meshes with the gears of the planetary gear carrier and the steering motor; the cover plate and the end cover are respectively arranged at the upper and lower ends of the reduction gear housing; the circular structure end of the reduction gear housing is connected to the vehicle body connecting plate.

[0009] Compared with the prior art, the present invention has the following beneficial effects: first, the present invention integrates the wheel hub motor, the shock absorbing device and the reduction device into a whole to form a high-efficiency, high-power density drive module with a light overall weight, which effectively reduces the unsprung mass of the whole vehicle; second, the present invention adopts a quick-connect method with the vehicle body interface to facilitate rapid disassembly and assembly; third, the present invention adopts a planetary gear reducer with light weight and reliable structure, and the power transmission gear is a non-standard product with high transmission efficiency and low noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the three-dimensional structure of Example 1 of the present invention;

[0011] Figure 2 This is a front view of a product according to Embodiment 1 of the present invention;

[0012] Figure 3 for Figure 2 Schematic diagram of the structure of the AA section;

[0013] Figure 4 for Figure 3 A partial enlarged view of the upper part;

[0014] Figure 5 for Figure 3 A partial enlarged view of the lower part;

[0015] Figure 6 It is an exploded view of components of Embodiment 1 of the present invention;

[0016] Figure 7 for Figure 6 A partial enlarged view of the left end;

[0017] Figure 8 for Figure 6 A partial enlarged view of the middle part;

[0018] Fig. 9 for Figure 6 A partial enlarged view of the right end;

[0019] Among them: 1. Tire, 2. Wheel hub, 3. Hub motor, 4. Shock absorber housing, 5. Shock absorber spring, 6. Shock absorber, 7. Dust cover, 8. Steering motor, 9. Speed ​​reducer housing, 10. Planetary gear carrier, 11. Bearing, 12. Sun gear, 13. Bridge gear, 14. End cover, 15. Cover plate, 16. Body connecting plate, 17. Anti-loosening nut. DETAILED DESCRIPTION

[0020] The following is a detailed description of an embodiment of the present invention in conjunction with the accompanying drawings. This embodiment is based on the technical solution of the present invention and provides a detailed implementation method and a specific operation process, but the protection scope of the present invention is not limited to the following embodiment.

[0021] Example 1

[0022] Specific embodiments Figures 1 to 9As shown, the present invention includes a tire 1, a wheel hub 2, a wheel hub motor 3, a shock absorbing device housing 4, a shock absorbing spring 5, a shock absorber 6, a dust cover 7, a steering motor 8, a reduction device housing 9, a planetary gear carrier 10, a bearing 11, a sun gear 12, a bridge gear 13, an end cover 14, a cover plate 15, a body connecting plate 16, and a locking nut 17. The tire 1 is arranged on the wheel hub 2, and the driving end of the wheel hub motor 3 is connected to the wheel hub 2 to drive the wheel hub 2 to rotate; the lower end of the shock absorbing device is connected to the outer shell of the wheel hub motor The outer shell 2 is connected to the outer shell 2, and the upper end is connected to the deceleration device; the dust cover 7 is arranged on the outer side of the shock absorbing device; one end of the deceleration device is connected to the shock absorbing device, and the other end is connected to the vehicle body connecting plate 16; the steering motor 8 is arranged in the deceleration device and connected to the shock absorbing device; the shock absorbing device includes a shock absorbing device housing 4, a shock absorbing spring 5, and a shock absorber 6, the shock absorbing spring 5 and the shock absorber 6 are arranged in the shock absorbing device housing 4, the shock absorber 6 is arranged on the center line of the shock absorbing device housing 4, and the shock absorbing spring 5 is arranged On the outside of the shock absorber 6; the cross-section of the shock absorber housing 4 is a rectangular structure, and the shock absorber housing 4 is a stepped structure with a smaller cross-sectional area at the upper end; the reduction device includes a reduction device housing 9, a planetary gear carrier 10, a bearing 11, a sun gear 12, a bridge gear 13, an end cover 14, a cover plate 15, and a lock nut 16; one end of the reduction device housing 9 is a circular structure, and the other end is a rectangular structure; the upper end of the shock absorber housing 4 and the steering motor 8 are arranged in the rectangular structure of the reduction device housing 9; the planetary gear carrier 10, the bearing 11, and the sun gear 12 are superimposed and arranged in the circular structure of the reduction device housing 9; the bridge gear 13 is arranged in the reduction device housing 9 and meshes with the gears of the planetary gear carrier 10 and the steering motor 8; the cover plate 15 and the end cover 13 are respectively arranged at the upper and lower ends of the reduction device housing 9; the circular structure end of the reduction device housing 9 is connected to the vehicle body connecting plate 16; the lock nut 17 is used to fasten the components in the circular structure end of the reduction device housing 9.

[0023] During the implementation of the invention, the hub motor 3 is used to drive the wheel hub 2 and the tire 1 to rotate synchronously, and the shock absorber is used to reduce the shock of the entire vehicle body; the reduction device is used to reduce the speed of the steering motor 8, and the steering motor 8 drives the planetary gear carrier 10 to rotate.

[0024] Example 2

[0025] In the first embodiment, the shock absorbing device housing 4 is a rectangular structure, which can be changed to a circular structure in the present embodiment.

[0026] In the first embodiment, the shock absorbing device mainly uses the shock absorbing spring 5 for shock absorption. In the present embodiment, the shock absorbing spring 5 can be replaced with an air spring.

[0027] The above describes the specific embodiments of the present invention. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art may make various modifications or variations within the scope of the claims, which do not affect the essence of the present invention.

Claims

1. An automobile chassis integrated module system, comprising a tire and a wheel hub, wherein the tire is arranged on the wheel hub, characterized in that: It also includes wheel hub motor, shock absorber, dust cover, reduction gear, steering motor, and body connecting plate; The driving end of the wheel hub motor is connected to the wheel hub to drive the wheel hub to rotate; The lower end of the shock absorbing device is connected to the wheel hub motor housing, and the upper end is connected to the reduction device; The dust cover is arranged on the outside of the shock absorbing device; One end of the deceleration device is connected to the shock absorbing device, and the other end is connected to the vehicle body connecting plate; the steering motor is arranged in the deceleration device and connected to the shock absorbing device.

2. The automotive chassis integrated module system according to claim 1, characterized in that The shock absorbing device comprises a shock absorbing device housing, a shock absorbing spring and a shock absorber. The shock absorbing spring and the shock absorber are arranged in the shock absorbing device housing, the shock absorber is arranged on the center line of the shock absorbing device housing, and the shock absorbing spring is arranged on the outside of the shock absorber.

3. The automotive chassis integrated module system according to claim 2, characterized in that The cross section of the shock absorbing device shell is a rectangular structure, and the shock absorbing device shell is a stepped structure, and the cross section area of ​​the upper end is smaller.

4. The automotive chassis integrated module system according to claim 1, characterized in that The reduction gear comprises a reduction gear housing, a planetary gear carrier, a bearing, a sun gear, a bridge gear, an end cover, a cover plate, and a locking nut; one end of the reduction gear housing is a circular structure, and the other end is a rectangular structure; the upper end of the shock absorber housing and the steering motor are both arranged in the rectangular structure of the reduction gear housing; the planetary gear carrier, the bearing, and the sun gear are stacked and arranged in the circular structure of the reduction gear housing; the bridge gear is arranged in the reduction gear housing and meshes with the gears of the planetary gear carrier and the steering motor; the cover plate and the end cover are respectively arranged at the upper and lower ends of the reduction gear housing; the circular structure end of the reduction gear housing is connected to the vehicle body connecting plate.

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