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Magneto-rheological torsion damper of electric wheel

A torsional shock absorber and magneto-rheological technology, applied in the direction of spring/shock absorber, motion deposition, power device, etc., can solve the problems of reducing the working performance and life of the motor, and the impact of the NVH performance of the car, so as to reduce the impact and improve The effect of hub shaft torque fluctuation and maximum controllable damping force

Active Publication Date: 2020-08-25
DONGFENG MOTOR CORP HUBEI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the wheel hub motor is driving, the motor is directly connected to the wheel hub or reducer, the wheel is in contact with the road surface and the wheel hub system has no shock absorber, resulting in a relatively harsh working environment for the motor, which reduces the working performance and life of the motor , and at the same time have an impact on the NVH performance of the car

Method used

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  • Magneto-rheological torsion damper of electric wheel
  • Magneto-rheological torsion damper of electric wheel
  • Magneto-rheological torsion damper of electric wheel

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Embodiment Construction

[0017] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0018] Such as figure 1 The magneto-rheological torsional shock absorber for electric wheels shown in —3 includes a motor rotor connected to the power output end of the hub motor and a hub rotor fixed to the hub.

[0019] The motor rotor includes a motor rotor connection plate 1, and the motor rotor shaft teeth 2 are arranged at intervals on the circumferential side surface of the motor rotor connection plate 1, and the middle part of the motor rotor connection plate 1 is fixedly connected with the output shaft of the reducer perpendicular to the hub motor. Fixed connecting shaft 7.

[0020] The hub rotor includes a hub rotor ring 10 and hub rotor shaft teeth 4 arranged at intervals on the circumferential inner surface of the hub rotor ring 10 , and the hub rotor shaft teeth 4 are arranged between two adjacent motor rotor shaft teeth...

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Abstract

The invention discloses a magneto-rheological torsion damper of an electric wheel. The magneto-rheological torsion damper comprises a motor rotor capable of being connected with a power output end ofa hub motor and a hub rotor capable of being fixed to a hub. The motor rotor comprises a motor rotor connecting disc; motor rotor shaft teeth are arranged on a circumferential side surface of the motor rotor connecting disc at intervals; the hub rotor comprises a hub rotor ring and hub rotor shaft teeth arranged on the circumferential inner surface of the hub rotor ring at intervals; and the hub rotor shaft teeth are arranged between two adjacent motor rotor shaft teeth, connecting springs are fixed between the side surfaces of the motor rotor shaft teeth and the side surfaces of the hub rotorshaft teeth adjacent to the motor rotor shaft teeth, and a magneto-rheological fluid is arranged in a space formed by the motor rotor shaft teeth and the hub rotor shaft teeth in a closed mode. Through relative rotation of the hub rotor and the motor rotor, the magneto-rheological fluid generates a damping force opposite to the torque fluctuation of a hub shaft, and influence of wheel bounce andimpact on normal work of a speed reducer and the motor is reduced.

Description

technical field [0001] The invention relates to the technical field of automobile shock absorbers, in particular to a magneto-rheological torsional shock absorber for electric wheels. Background technique [0002] With the increasing consumption and deterioration of fossil energy in recent years, the modern automobile industry has ushered in a new development direction. Pure electric vehicles have become a research hotspot in automobile design and manufacturing due to their "zero emission" of waste during use, efficient energy utilization, and more convenient and intelligent control, and have become the main direction of automobile technology and industrial development. As a main driving form of electric vehicles, in-wheel motor drive eliminates the transmission, drive shaft, universal joint and differential vehicle transmission system, realizes the goal of vehicle lightweight, and greatly improves the transmission efficiency. According to the above Advantages, hub motor dr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K7/00F16F15/03F16F15/067
CPCB60K7/0007F16F15/035F16F15/067
Inventor 蔡静王坤闫涛卫徐小卫聂晓文
Owner DONGFENG MOTOR CORP HUBEI
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