Two-gear pure electric vehicle transmission gear shifting mechanism and shifting mechanism method

A pure electric vehicle and shifting mechanism technology, which is applied in mechanical equipment, transmission control, components with teeth, etc. problems such as the comfort of shifting and stopping of the car, to achieve the effect of reducing assembly costs, reducing procurement costs, and reducing shifting setbacks

Pending Publication Date: 2019-06-04
CHONGQING TSINGSHAN IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The two-speed pure electric vehicle transmission in the prior art has a large number of parts, the power transmission chain is long when shifting gears, and the total clearance of the mechanism is relatively large, so there are the following defects:
[0004] 1) The number of parts is large, and the manufacturing cost and assembly cost are high;
[0005] 2) The power res

Method used

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  • Two-gear pure electric vehicle transmission gear shifting mechanism and shifting mechanism method
  • Two-gear pure electric vehicle transmission gear shifting mechanism and shifting mechanism method
  • Two-gear pure electric vehicle transmission gear shifting mechanism and shifting mechanism method

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[0029] The present invention will be further explained below in conjunction with the drawings.

[0030] Such as Figure 2 to Figure 5 As shown, the shifting mechanism of the two-speed pure electric automobile transmission disclosed by the present invention includes a motor worm assembly 1, a torsion shock absorber assembly 2 and a shift fork assembly 3.

[0031] The motor worm assembly includes a motor 11, a worm 13 driven by the motor 11, a left worm bearing 12 and a right worm bearing 14. A left worm bearing 12 and a right worm bearing 14 are fitted at both ends of the worm 13 of the motor worm assembly, and the motor worm assembly is fixedly connected to the transmission case through the left worm bearing 12 and the right worm bearing 14.

[0032] One end of the torsion shock absorber assembly 2 is a turbine 21, and the other end is a spur gear 24 coaxial with the turbine 21. An angle sensor 23 is provided on one side of the turbine 21. The outer sides of the turbine 21 and the s...

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Abstract

The invention discloses a two-gear pure electric vehicle transmission gear shifting mechanism and a shifting mechanism method. During gear shifting, a motor on a motor worm assembly drives a worm of the motor worm assembly to rotate, and the worm is engaged with a turbine of a torsion shock absorber assembly; and the turbine rotates to drive a straight gear on the torsion shock absorber assembly to rotate, the straight gear is engaged with a shifting fork rod rack on a shifting fork assembly, a shifting fork rod is driven to move in the axial direction, and accordingly, a shifting fork is driven to move in the axial direction to achieve gear shifting. Compared with the prior art, a transmitting swing rod assembly is omitted, the purchase cost and the assembling cost are reduced, meanwhile,a power transmit chain during gear shifting is shortened, the power efficiency is higher compared with that of a traditional mechanism, dynamic response is quick, and gear shifting setback of a wholevehicle is reduced.

Description

technical field [0001] The invention relates to a pure electric vehicle transmission, in particular to a shifting mechanism and a shifting method of a two-speed pure electric vehicle transmission. Background technique [0002] The shift mechanism of the two-speed pure electric vehicle transmission of the prior art is as follows: figure 1 shown. The shift mechanism of the two-speed pure electric vehicle transmission includes a motor worm assembly, a torsional shock absorber assembly, a transmission swing rod assembly and a shift fork assembly. When shifting gears, the motor 11 on the motor worm assembly starts to drive its worm 13 to rotate, and the worm 13 cooperates with the turbine 21 on the torsional shock absorber assembly to transmit power, and then the spur gear on the torsional shock absorber assembly 2 24 cooperates with the sector gear 411 on the sector gear 41 on the transmission pendulum assembly 4, and then the finger 421 on the transmission pendulum assembly 4...

Claims

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Application Information

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IPC IPC(8): F16H63/30F16H61/32
Inventor 王鑫李小粉赵诗鑫向鹏张子川廖圆赵华德李正中彭晓丽
Owner CHONGQING TSINGSHAN IND
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