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Drive axle of motor drive

A technology of motor drive and drive axle, which is applied to electric power units, brakes, power units, etc., can solve the problems of high center of gravity of forklifts, increase the size of the drive unit height, poor stability of the whole vehicle, etc., to achieve smooth operation and reduce diameter. The effect that size, height size is small

Inactive Publication Date: 2009-01-21
WUXI KIPOR POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The arrangement of the motor will inevitably increase the size of the driving device in height. When the device is used in an electric forklift, the height of the cab will increase, resulting in an excessively high center of gravity of the forklift and poor stability of the vehicle.

Method used

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  • Drive axle of motor drive
  • Drive axle of motor drive
  • Drive axle of motor drive

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0031] Below the present invention will be further described in conjunction with the embodiment in the accompanying drawing:

[0032] As shown in Figures 1 to 11, it includes: drive axle 1, first planetary gear reducer 2, motor 3, differential 4, braking device 5, second planetary gear reducer 6, hub 7, central shaft 8, Second planetary gear reducer housing 9, secondary planetary gear mechanism 10, sun gear shaft 11, motor end cover 12, side gear 13, separator 14, side gear 15, differential case 16, motor housing 17. Motor stator 18, motor rotor 19, motor shaft 20, transmission shaft 21, sun gear 22, secondary planetary gear mechanism 23, first planetary gear reducer housing 24, central shaft 25, hub 26, sealing ring 27, Internal ring gear 28, secondary planetary mechanism 29, primary planetary mechanism 30, bolt 31, first main friction plate 32, fixed disc 33, internal ring gear 34, primary planetary mechanism 35, secondary planetary mechanism 36, bolt 37 , sealing ring 38, ...

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PUM

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Abstract

The invention relates to a driving axle of a drive motor, in particular to a driving axle of an electric vehicle; the driving axle essentially comprises a motor, a differential, a first planetary gear reducer and a second planetary gear reducer. The driving axle is characterized in that the motor is arranged on the middle of the driving axle; one end of the motor is coaxially connected with the first planetary gear reducer and the other end is coaxially and sequentially connected with the differential and the second planetary gear reducer; a braking device is arranged between the differential and the second planetary gear reducer. The driving axle can save height space, achieve safe and reliable performance by integrating a driving braking system and a parking braking system into a whole, reduce the radial dimension of the reducer and ensure lower gravity center and more stable operation of the driving axle.

Description

technical field [0001] The invention relates to a drive axle driven by a motor, in particular to a drive axle of an electric vehicle. Background technique [0002] The function of the electric vehicle drive axle is to decelerate the power from the motor and transmit it to the left and right drive wheels. Japanese Patent Application Publication No. 2001-039174 discloses a motor output driving device, the motor driving force in the device is transmitted to the driving wheel through gears, intermediate gears, input shafts, differentials, and output shafts; the motor in the device The axis and the axis of the output shaft are arranged in parallel, that is, the motor and the differential are arranged in parallel, and the motor is arranged above the differential. Such an arrangement of the motor will inevitably increase the size of the driving device in height. When the device is used in an electric forklift, the height of the cab will be increased, resulting in an excessively hi...

Claims

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Application Information

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IPC IPC(8): B60K17/12B60K17/06B60T1/06
CPCB60K17/046B60T1/062B60K17/356B60K2001/001
Inventor 肖亨琳
Owner WUXI KIPOR POWER CO LTD
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