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-sp

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
Comparison scheme
Effect test

Example Embodiment

[0027] The first embodiment of the new two-speed transmission for electric vehicles of the present invention:

[0028] Such as Figure 1-4 As shown, the new two-speed transmission for an electric vehicle 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-speed driven gear 4, second-speed driving gear 5, second-speed driving gear needle bearing 501, second-speed driven gear 6, reducer driving gear 11, reverse driving gear 8, reverse driving gear needle bearing 801, reverse driven gear 9, second reverse synchronizer assembly 7, one-way bearing 401 of first-speed driven gear, one-way bearing 601 of second-speed driven gear, front rolling bearing 101, rear rolling bearing of first shaft 102 and its bearing seat and oil seal device, the rolling bearing 201 of the seco...

Example Embodiment

[0038] The second embodiment of the new two-speed transmission for electric vehicles of the present invention:

[0039] The new two-speed transmission of the electric vehicle of the present invention can cancel the reducer driving gear 11 in the transmission, directly lengthen the second shaft 20 and extend out of the upper half 14 of the transmission housing, and the second shaft 20 extends out of the transmission housing The other end of the upper half 14 is connected to 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.

Example Embodiment

[0040] The third embodiment of the transmission shifting system in the new two-speed transmission of the electric vehicle of the present invention:

[0041] The shift control device in the transmission shift system includes: a manual shift lever 76, a shift cable or lever 75. The manual shift lever 76 is connected to the shift fork shaft 73 via a cable or lever 75. At this time, the shift lever 76 is manipulated back and forth to form a pulling force and thrust to the shift fork shaft 73 to realize the front and back movement of the shift fork shaft 73, thereby realizing the transmission shift control.

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PUM

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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
CPCF16H3/30F16H57/02F16H57/021F16H57/032F16H61/32F16H61/36F16H2057/02091F16H2057/0325F16H2061/326
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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