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Multi-gear hub transmission with three motors and two brakes

A hub transmission and brake technology, which is applied to vehicle gearboxes, transmission components, mechanical equipment, etc., can solve the problems of single-speed shifting, high energy consumption and difficulty in motor transmissions, and achieves low shifting impact, compact structure, Good cooling effect

Pending Publication Date: 2021-10-19
HEFEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the problems of high energy consumption of the existing electric wheel hub motor transmission, only a single gear, or difficulty in shifting, the present invention is based on the characteristics of the planetary gear system and considers the actual working conditions to design a high-low gear coordination, double brakes, and three motors. A new type of multi-speed hub transmission driven by the drive, which is a useful supplement to the existing electric hub motor transmission

Method used

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  • Multi-gear hub transmission with three motors and two brakes
  • Multi-gear hub transmission with three motors and two brakes
  • Multi-gear hub transmission with three motors and two brakes

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Embodiment Construction

[0022] like figure 1 As shown, the present invention relates to a three-power two-speed variable speed hub motor device, which is mainly composed of a motor M, a first brake B1, a second brake B2, a planetary gear train, a rotor 2, and a stator I.

[0023] The shell of the motor M is connected to the planetary carrier H, the rotating shaft of the motor M is connected to the planetary wheel 3 through a key, the electric wire of the motor M passes through the electric slip ring 1 and then enters the wire hole 13 of the stator Ⅰ to pass through the hub motor, and the motor M is installed inside. In the planetary gear system, the center wheel 4 is externally meshed with the planetary wheel 3, and the planetary wheel 3 is internally meshed with the rotor 2. At the same time, the stator I shaft is provided with two shoulders, oil passage 9, and wire hole 13; the center wheel 4 and the stator I Bearings are installed between them; bearings are installed between planet carrier H and s...

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Abstract

The invention relates to a multi-gear hub transmission with three motors and two brakes. The multi-gear hub transmission is characterized by mainly comprising the motors, a planetary gear train, a stator, the first brake and the second brake, the first brake and the second brake are of a tandem structure, and the shift of gears is realized through alternate braking; and in addition, multi-motor input is adopted, the motors are fixedly connected to a planet carrier, the motors directly transmit power to planet gears through rotating shafts, and the advantages of being large in power, high in response speed and the like are achieved. According to the multi-gear hub transmission with the three motors and the two brakes, two forward gears, one parking gear and one neutral gear can be achieved, meanwhile, the multi-gear hub transmission has the advantages of being small in number of related parts, light in weight, compact in structure, simple in gear shifting mode, high in transmission efficiency, low in assembly precision requirement and the like, a new scheme reference is provided for an existing electric vehicle hub motor transmission structure, and the multi-gear hub transmission has good use value and application prospects.

Description

technical field [0001] The invention belongs to the field of electric hub motors, in particular to a multi-speed hub transmission with three motors and two brakes. Background technique [0002] Electric vehicles are now ubiquitous in our daily lives, and electric vehicles for the elderly have also become more and more popular in recent years. In electric vehicles, in-wheel motor technology is widely used. In-wheel motors integrate power devices and transmission devices into the wheels, which greatly simplifies the power part of electric vehicles. However, with the increase of travel demand in daily life, the development speed of electric wheel hub motors is slow and the road conditions of electric vehicles are becoming more and more complicated. At the same time, the load, driving speed and resistance of vehicles in daily life change greatly. When the vehicle is running at a constant speed on the urban level road and the vehicle load is light, the driving resistance is smal...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H3/44F16H57/08F16H57/10
CPCF16H3/44F16H57/08F16H57/10F16H2200/0034
Inventor 陈奇唐查强侯庆伟吴焱明张彦宋晖尹延国
Owner HEFEI UNIV OF TECH
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