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One-way bearing type two-gear transmission of electric automobile

A technology for one-way bearings and electric vehicles, which is applied in the direction of transmission boxes, transmissions, gear transmissions, etc., to achieve the effect of fewer parts, helpful for promotion and popularization, and light weight

Pending Publication Date: 2019-09-24
ANYANG INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to propose a second-speed transmission for electric vehicles with a new structure for the technical defects of the first-speed transmission of electric vehicles and the high cost of the second-speed transmission, which simplifies the structure of the transmission and does not require a clutch. Realize the transmission gear change, reduce the production cost of electric vehicles, and improve the power performance of electric vehicles

Method used

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  • One-way bearing type two-gear transmission of electric automobile
  • One-way bearing type two-gear transmission of electric automobile
  • One-way bearing type two-gear transmission of electric automobile

Examples

Experimental program
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Effect test

Embodiment 1

[0028] Such as Figure 1-4 As shown, the novel two-speed transmission for electric vehicles of the present invention includes a transmission housing system, a transmission gear transmission system, and a transmission shifting system. The transmission gear transmission system includes: a first shaft 10, a second shaft 20, and a first-speed driving gear 3. First gear driven gear 4, second gear driving gear 5, second gear driving gear needle roller bearing 501, second gear driven gear 6, reducer driving gear 11, reverse gear driving gear 8, reverse gear driving gear needle bearing 801, reverse gear driven gear 9, second reverse gear synchronizer assembly 7, one-way bearing 401 of first gear driven gear, one-way bearing 601 of second gear driven gear, front rolling bearing 101 and rear rolling bearing of first shaft 102 and its bearing seat and oil seal device, the rolling bearing 201 of the second shaft, the rear rolling bearing 202 and its bearing seat and oil seal device;

[002...

Embodiment 2

[0039] The new two-speed transmission for electric vehicles of the present invention can cancel the drive gear 11 of the reducer in the transmission, directly lengthen the second shaft 20, and extend out of the upper half part 14 of the transmission housing, and the second shaft 20 protrudes from the transmission housing. One end other than the upper half 14 is connected with the transmission shaft through a universal joint, and the transmission power is transmitted to the drive axle through the transmission second shaft 20 and the transmission shaft.

Embodiment 3

[0041] The shift control device in the transmission shift system includes: manual shift lever 76, shift cable or pull rod 75, manual shift lever 76 is connected with shift fork shaft 73 through pull cable or pull rod 75, when shifting At this time, the shift lever 76 is manipulated back and forth to form a pulling force and a pushing force on the shift fork shaft 73, so that the shift fork shaft 73 moves forward and backward, thereby realizing the shift control of the transmission.

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Abstract

The invention discloses an electric automobile two-gear transmission. The electric automobile two-gear transmission comprises a first shaft, a second shaft, a one-gear driving gear, a second-gear driving gear, a first-gear driven gear, a second-gear driven gear, a speed reducer driving gear, a reverse-gear driving gear, a reverse gear driven gear, a second reverse gear synchronizer assembly, a one-way bearing for supporting the first-gear driven gear and a one-way bearing for supporting the second-gear driven gear, and a transmission gear shifting system, a transmission housing system, a rolling bearing supporting the first shaft and a rolling bearing supporting the second shaft. According to the electric automobile two-gear transmission, the gear shifting action is simplified, the gear shifting can be realized without a clutch, the power interruption time in the gear shifting process is shortened, the transmission structure is simplified while the motor efficiency and the power performance of the electric automobile are improved, the transmission structure is simplified, the transmission cost is reduced, and the popularization and popularization of the electric automobile are facilitated.

Description

technical field [0001] The invention belongs to the technical field of automobile transmissions, in particular to a two-speed transmission for electric automobiles. Background technique [0002] With the increasing pressure of environmental protection and energy saving, the number of electric vehicles in my country is increasing year by year, and more attention is paid to the research of electric vehicle transmissions. Currently on the market, electric vehicles take advantage of the motor’s stalling characteristics and the large range of torque corresponding to the rotational speed, and use a gear transmission to simplify the transmission structure and reduce the cost of the transmission; however, the transmission ratio of a gear transmission is fixed, and the output The range of speed and torque variation is limited, which affects the dynamics and maximum speed of the vehicle, and puts forward higher requirements for the power of the drive motor of the electric vehicle. In...

Claims

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Application Information

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IPC IPC(8): F16H57/021F16H57/032F16H3/30F16H57/02F16H61/36F16H61/32
CPCF16H57/021F16H57/032F16H3/30F16H57/02F16H61/36F16H61/32F16H2057/02091F16H2057/0325F16H2061/326
Inventor 王俊昌古翔华胡四林王纪为阳圆银殷铭铭张辉
Owner ANYANG INST OF TECH
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