CN-116001556-B - Electric drive wheel and electric drive cross country vehicle

CN116001556BCN 116001556 BCN116001556 BCN 116001556BCN-116001556-B

Abstract

The application discloses an electric drive wheel, which relates to the technical field of high-power electric drive off-road vehicle chassis and comprises a wheel hub, a motor assembly, a heat dissipation assembly, a parking brake, a steering knuckle assembly and a driving brake, wherein the motor assembly comprises a motor main body, a first end cover and a second end cover, the first end cover is arranged at one end of the motor main body, which is close to the wheel hub, the second end cover is arranged at one end of the motor main body, which is far away from the wheel hub, the motor main body is connected with the wheel hub through a planetary reducer, the driving brake is sleeved at one end of the wheel hub, which is close to the first end cover, the heat dissipation assembly is arranged on the driving brake and the wheel hub, the parking brake is arranged on the second end cover, and the steering knuckle assembly is detachably connected with the second end cover. The problem of the overall integrated arrangement of high-power electric drive wheel is effectively solved, overall structure arrangement is compact, the interference problem of motor assemblies and peripheral systems in the steering process is avoided, the heat dissipation assembly is arranged, and heat dissipation and exhaust are realized.

Inventors

ZHENG JIANHUI
YU CHUNXIAO
YUAN HAN
FENG WEI
LI XIAOLONG
MENG FANXING

Assignees

湖北三江航天万山特种车辆有限公司
湖北航天技术研究院特种车辆技术中心

Dates

Publication Date: 20260512
Application Date: 20221229

Claims (8)

1. An electrically driven wheel for use with a high power electrically driven off-road vehicle, comprising: a hub; the motor assembly comprises a motor main body, a first end cover and a second end cover, wherein the first end cover is arranged at one end of the motor main body, which is close to the hub, and the second end cover is arranged at one end of the motor main body, which is far away from the hub; the power output end of the motor main body is connected with the hub through the planetary reducer; service brake, service brake cup joint in the one end that wheel hub is close to first end cover includes: the third end cover is fixedly connected with the first end cover; the brake disc is arranged between the third end cover and the hub; The heat dissipation subassembly, set up in on service brake and the wheel hub, include: the air inlet hole is arranged on the circumferential outer end surface of the brake disc; The air outlet hole is arranged on the lateral end face of the brake disc; The air guide groove is arranged at a position corresponding to the air inlet hole in the circumferential direction of the hub; the spiral ridge is arranged on the inner surface of the third end cover; a parking brake mounted to the second end cap; And the steering knuckle assembly is detachably connected with the second end cover.
2. An electrically driven vehicle wheel according to claim 1, wherein the service brake further comprises 2 brake calipers, 2 of which are radially disposed in the upper and lower portions of the third end cap by mounting bolts, respectively.
3. An electrically driven vehicle wheel according to claim 2, wherein the second end cover is provided with oil inlet holes, the first end cover is provided with 2 oil outlet pipes, the motor body is internally provided with control oil channels, the oil inlet holes are communicated with one ends of the 2 oil outlet pipes through the control oil channels, and the other ends of the 2 oil outlet pipes are respectively connected with the 2 brake calipers.
4. An electrically driven vehicle wheel according to claim 1, wherein the knuckle assembly comprises: The steering knuckle body is detachably connected with the mounting interface on the second end cover; the bracket is arranged at one end of the steering knuckle main body, which is far away from the motor component; and the steering arm is connected with the steering knuckle main body, and the steering knuckle main body is connected with a steering pull rod on the vehicle through the steering arm.
5. An electrically driven vehicle wheel according to claim 4, wherein the knuckle body is provided with a stopper, the bracket is provided with an adjusting bolt, the steering angle of the vehicle wheel is adjusted according to the tightening length of the adjusting bolt, and the steering angle of the vehicle wheel reaches a limit when the adjusting bolt contacts the stopper.
6. An electrically driven vehicle wheel according to claim 4, wherein the bracket is provided with an inclined hole and a pin hole, the inclined hole intersects the pin hole, a wedge bolt is mounted in the inclined hole, a stop plane is arranged on the wedge bolt, and the stop plane contacts with the pin in the pin hole to prevent the pin from rotating.
7. An electrically driven vehicle wheel according to claim 1, wherein a high voltage cable interface, an ABS sensor interface and a cooling water interface are provided above the second end cap.
8. An electrically driven off-road vehicle, characterized in that the off-road vehicle is provided with an electrically driven wheel according to any one of claims 1-7.

Description

Electric drive wheel and electric drive cross country vehicle Technical Field The application relates to the technical field of chassis of high-power electric-driven off-road vehicles, in particular to an electric-driven wheel and an electric-driven off-road vehicle. Background With the development of new energy automobiles, more and more people select electric drive automobiles for traveling, the current research of electric drive automobiles mainly focuses on the field of civil passenger cars, has smaller power and is suitable for household use, but practical high-power electric wheels are required when military off-road vehicles and giant mining vehicles adopt electric drive, and the problems of space arrangement and function coordination among drive motors, reducers and brakes of high-power electric wheels are not solved in the prior art. Disclosure of Invention The application aims to provide an electric drive wheel and an electric drive off-road vehicle, which are used for solving the technical problems of space arrangement and function coordination among various core components of a high-power electric wheel to a certain extent. In order to solve the technical problems, the application adopts the following technical scheme: The application provides an electrically driven wheel which is suitable for a high-power electrically driven off-road vehicle and comprises a wheel hub, a motor assembly, a heat dissipation assembly, a parking brake, a steering knuckle assembly and a driving brake, wherein the motor assembly comprises a motor main body, a first end cover and a second end cover, the first end cover is arranged at one end of the motor main body, which is close to the wheel hub, the second end cover is arranged at one end of the motor main body, which is far away from the wheel hub, the motor main body is connected with the wheel hub through a planetary reducer, the driving brake is sleeved at one end of the wheel hub, which is close to the first end cover, the heat dissipation assembly is arranged on the driving brake and the wheel hub, the parking brake is arranged on the second end cover, and the steering knuckle assembly is detachably connected with the second end cover. In some embodiments, the service brake includes a third end cap fixedly coupled to the first end cap and a brake disc disposed between the third end cap and the hub. In some embodiments, the heat dissipation assembly comprises an air inlet hole, an air outlet hole, an air guide groove and a spiral ridge, wherein the air inlet hole is formed in the circumferential outer end face of the brake disc, the air outlet hole is formed in the lateral end face of the brake disc, the air guide groove is formed in the circumferential position of the hub, the position corresponds to the air inlet, and the spiral ridge is formed in the inner surface of the third end cover. In some embodiments, the service brake further comprises 2 brake calipers, the 2 brake calipers being radially disposed in the upper and lower portions of the third end cap by mounting bolts, respectively. In some embodiments, the second end cover is provided with an oil inlet, the first end cover is provided with 2 oil outlet pipes, a control oil duct is arranged in the motor main body, the oil inlet is communicated with one end of 2 oil outlet pipes through the control oil duct, and the other ends of 2 oil outlet pipes are respectively connected with 2 brake calipers. In some embodiments, the steering knuckle assembly comprises a steering knuckle body detachably connected with a mounting interface on the second end cover, a bracket mounted at one end of the steering knuckle body away from the motor assembly, and a steering arm connected with the steering knuckle body, wherein the steering knuckle body is connected with a steering pull rod on a vehicle through the steering arm. In some embodiments, the steering knuckle body is provided with a limiting block, the bracket is provided with an adjusting bolt, the steering angle of the wheel is adjusted according to the tightening length of the adjusting bolt, and when the adjusting bolt is in contact with the limiting block, the steering angle of the wheel reaches the limit. In some embodiments, the bracket is provided with an inclined hole and a pin shaft hole, the inclined hole intersects with the pin shaft hole, a wedge-shaped bolt is installed in the inclined hole, a stop plane is arranged on the wedge-shaped bolt, and the stop plane is in contact with the pin shaft in the pin shaft hole to prevent the pin shaft from rotating. In some embodiments, a high voltage cable interface, an ABS sensor interface, and a cooling water interface are provided above the second end cap. A second aspect of the application provides an electrically driven off-road vehicle having said electrically driven wheels. According to the technical scheme, the application has at least the following advantages and positive effects: According to the electr