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Electric car axle

An electric vehicle and axle technology, applied in the vehicle field, can solve the problems of reducing the life and reliability of the motor, reducing the interior space of the passenger car, increasing the floor height of the passenger car, etc., so as to reduce the power transmission process, reduce the overall height, and improve the life. and reliability effects

Pending Publication Date: 2018-05-11
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the existing electric axle structure of this kind, the motor shaft is usually connected to the wheel shaft through a reducer. The force of such a wheel is mainly transmitted to the wheel shaft and deforms the motor shaft connected to it, which inevitably reduces the life of the motor and reliability
[0004] Moreover, the traditional axle has a large number of transmission parts, and more transmission parts occupy a large layout space, and the compactness is poor, resulting in a very low space occupancy rate, which not only reduces the interior space of the bus, but also increases the height of the car floor

Method used

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  • Electric car axle
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Embodiment Construction

[0053] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described The embodiments are only some of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0054] figure 1 It is a schematic top view structural diagram of an electric axle provided in the embodiment of the present application. figure 2 It is a rear view of an electric axle provided by the embodiment of the present application. image 3 It is a partial cross-sectional schematic diagram of an electric axle provided in the embodim...

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Abstract

An electric car axle comprises a car axle body, a brake, a motor, a hub and a wide-base and single-tire rim. Stand columns are arranged at the two ends of the car axle body, and a motor mounting station is arranged on the outer side of each stand column. The motor comprises a housing, a stator coil, a rotor coil and a motor spindle, wherein the housing is mounted on the motor mounting stations, the stator coil is fixed to the housing, the motor spindle is rotatably fixed to the housing, and the rotor coil is fixed to the motor spindle. The inner round face of the hub is connected with the outer side end of the motor spindle through a spline, and the outer round face of the hub is supported on the inner edge of the housing of the motor through two tapered roller bearings. The wide-base andsingle-tire rim is fixed with the hub. The motor spindle, the hub and the axis of the hub are in coincidence, and the axis of the motor spindle is parallel to the plane where the plate type structureof the car axle body is placed. The electric car axle can prolong the service life of the motor, improve the reliability of the motor and reduce the height of a car floor.

Description

technical field [0001] The present application relates to the technical field of vehicles, in particular to an electric axle. Background technique [0002] The transmission system of the existing vehicle is installed at the bottom of the vehicle, including: a gearbox, a transmission shaft and a drive axle. The transmission chain is long, and there are obvious disadvantages of complex structure and low transmission efficiency. [0003] At present, most of the axles used by electric-drive buses are traditional axles that have been electrified. In the existing electric axle structure of this kind, the motor shaft is usually connected to the wheel shaft through a reducer. The force of such a wheel is mainly transmitted to the wheel shaft and deforms the motor shaft connected to it, which inevitably reduces the life of the motor and reliability. [0004] Moreover, the traditional axle has a large number of transmission components, which occupy a large layout space and are poor ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K7/00B60B35/00B60T1/06B60G9/00
CPCB60B35/002B60G9/00B60K7/0007B60T1/065B60G2200/30B60G2200/422B60K2007/0092B60G2202/1524
Inventor 张军王朝林程王文伟
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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