Three-gear variable-speed hub motor power assembly with large torque

A hub motor and three-speed transmission technology, which is applied in the direction of power devices, electric components, brakes, etc., can solve the problems of not being able to meet complex and changeable operating requirements, not having large torque output capability, and single output transmission ratio, and achieving quality Lightweight, large braking force, and convenient gear shifting

Pending Publication Date: 2022-06-28
HEFEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In view of the single output transmission ratio of the power unit of the existing electric wheel hub motor, it does not have the ability to output large torque, and cannot keep the motor running at high efficiency under extreme conditions, and cannot meet the complex and changeable operation requirements

Method used

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  • Three-gear variable-speed hub motor power assembly with large torque
  • Three-gear variable-speed hub motor power assembly with large torque
  • Three-gear variable-speed hub motor power assembly with large torque

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Embodiment Construction

[0028] Below in conjunction with the accompanying drawings, a three-speed variable speed in-wheel motor powertrain with large torque of the present invention will be further described by way of examples.

[0029] like figure 1 , the features of the present invention mainly include motor shaft 1, bearing end cover 2, motor stator 3, left sun gear 4, left planetary gear 5, left planet carrier 6, ring gear 7, hub 8, right first planetary gear 9. Right second planetary gear 10, right third planetary gear 11, right planet carrier 12, right sun gear 13, sealing ring 14, housing 15, motor rotor 16, first brake B 1 , the second brake B 2 , the third brake B 3 , the first brake oil circuit W 1 , the second brake oil circuit W 2 , the third brake oil circuit W 3 .

[0030]The gear transmission module includes motor shaft 1, left sun gear 4, left planetary gear 5, left planetary carrier 6, ring gear 7, right first planetary gear 9, right second planetary gear 10, right side The th...

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Abstract

The invention discloses a three-gear variable-speed hub motor power assembly with large torque, which is characterized by comprising a motor, a left planetary gear train, a right planetary gear train, a first brake, a second brake, a third brake and a hub, the first brake and the second brake are fixedly connected to the inner wall of a case, the third brake is fixedly connected to a motor shaft, and the hub is fixedly connected to the motor shaft. The three brakes are matched with one another to achieve the gear switching function. According to the invention, three forward gears, a neutral gear and a parking gear can be met, wherein the three forward gears comprise a large-torque gear; meanwhile, the transmission structure has the advantages of being compact in structure, simple in gear shifting mode, high in transmission efficiency, low in assembly precision requirement and the like, provides a new scheme reference for an existing transmission structure of a hub motor of a load-carrying electric vehicle, and has good use value and application prospects.

Description

technical field [0001] The invention belongs to the field of electric wheel hub motors, and in particular relates to a high torque three-speed wheel hub motor power assembly. Background technique [0002] The in-wheel motor plays a vital role in many electric vehicles. It mainly integrates the power device and transmission device into the wheel, which greatly simplifies the power system of the electric vehicle, so that the power of the motor is directly transmitted to the wheel. , reduce the loss caused by mechanical transmission. In terms of heavy-duty electric vehicles, my country is also in a stage of vigorous development. The in-wheel motors used in heavy-duty vehicles have more stringent requirements for output torque, requiring them not only to output smoothly, but also to have a certain climbing ability. Moreover, the use environment of trucks is much more severe than that of ordinary electric vehicles, and a large part of them are in remote areas or mountainous area...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K7/00B60K17/04B60K17/08B60T13/12H02K7/116H02K7/102
CPCB60K7/0007B60K17/046B60K17/08B60T13/12H02K7/116H02K7/102B60K2007/0092
Inventor 陈奇黄丽源石若潼郭涛黄德尹延国吴焱明张彦宋晖
Owner HEFEI UNIV OF TECH
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