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hub drive assembly

A wheel hub drive and assembly technology, applied in the direction of power devices, motion deposition, vehicle components, etc., can solve the problems of high brake dynamics requirements, wear of motor cavity seals, large brake size, etc., to achieve lower dynamics requirements and save energy cost, life extension effect

Active Publication Date: 2019-12-17
SCHAEFFLER TECH AG & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The first problem solved by the present invention is that the existing wheel hub system has high dynamic requirements for the brake and the size of the brake is relatively large; the second problem solved is that the motor chamber seal in the existing wheel hub system is severely worn and has a low lifespan

Method used

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Embodiment Construction

[0035] In order to make the above objects, features and advantages of the present invention more comprehensible, specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0036] An embodiment of the present invention provides a hub drive assembly, referring to Figure 2-4 , including the hub 110 and the hub bearing 120 located on the central axis C-C of the hub 110 . The hub 110 includes a hub mounting surface 111 and a flange shaft 112 located on the central axis C-C of the hub. The flange shaft 112 is coaxially sleeved in the hub bearing 120 and is fixedly connected to the hub through a flange 112a facing the hub mounting surface 111. The hub mounting surface 111. The hub 110 is surrounded by a circumferential inner surface and the hub mounting surface 111 to form a cavity. In other embodiments, the flange shaft 112 can also be sleeved on the hub bearing 120 .

[0037] The hub drive assembly also inclu...

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PUM

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Abstract

A wheel hub drive assembly, the shell located in the wheel hub surrounds the motor cavity that is sealed and provided with a driving motor, the reducer cavity that is sealed and provided with a reducer, and the brake cavity that communicates with the outside and is provided with a brake, the reducer cavity 1. The brake cavity is distributed along the axial direction away from the mounting surface of the hub; the motor cavity includes a body close to the inner peripheral surface of the hub and a channel extending toward the central axis of the hub; the output end of the drive motor extends out of the motor cavity after passing through the channel, and is connected with the deceleration The input end of the reducer and the output end of the brake are connected, and the output end of the reducer is connected to the wheel hub; the casing seals the motor chamber through a seal between the part near the radial inner end of the channel and the rotor support. The speed reducer of the invention can strengthen the driving torque and the braking torque at the same time, reducing the dynamic requirements on the driving motor and the brake; the seal is closer to the central axis of the hub, reducing its wear speed.

Description

technical field [0001] The invention relates to the field of automobiles and vehicles, in particular to a wheel hub drive assembly. Background technique [0002] In-wheel motor technology, also known as in-wheel motor technology, is characterized by the integration of power, transmission and braking devices into the wheel hub, thus greatly simplifying the mechanical parts of electric vehicles. [0003] figure 1 It is a hub system using in-wheel motor technology in the prior art, including a hub 1, a motor 2 placed in the hub 1, a brake 3 and a reducer 4, wherein the brake 3 is closer to the hub 1 than the reducer 4 The mounting surface 1a. The reducer 4 is located at the output end of the motor 2 , the driving torque output by the motor 2 can be amplified through the action of the reducer 4 , and the amplified driving torque is finally output to the wheel hub 1 . The brake 3 acts directly on the hub 1 to achieve braking. Wherein, the motor 2 is close to the inner periphe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60K7/00
CPCB60K7/00B60K7/0007B60K2007/0038B60K2007/0092B60K17/043B60K17/046
Inventor 黄超高志川蔡向阳潘杭一
Owner SCHAEFFLER TECH AG & CO KG