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Parking mechanism for automobile transmission

A technology of automobile transmission and parking mechanism, which is applied to mechanical equipment, components with teeth, belts/chains/gears, etc. It can solve the problems of low safety and the inability to prevent the automatic parking of the parking mechanism, and improve the quality of the car. safety effect

Pending Publication Date: 2020-01-14
CHONGQING TSINGSHAN IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] With this kind of parking mechanism, when the pawl return spring 5 fails, the automatic parking of the parking mechanism cannot be prevented, and the safety is low.

Method used

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  • Parking mechanism for automobile transmission
  • Parking mechanism for automobile transmission
  • Parking mechanism for automobile transmission

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] see Figure 1 to Figure 5 As shown, a parking mechanism of an automobile transmission disclosed by the present invention includes: a parking cam 2 , a parking pawl 4 , a parking pawl pin 6 , a return spring 5 , a parking ratchet 7 and a ratchet center 2 .

[0021] The parking cam 2 is fixedly set on the parking push rod.

[0022] One end of the parking pawl 4 is a pawl 41, the other end is a counterweight 42, and the middle section is a center of rotation 44. The rotation center 44 is fixedly sleeved on the parking pawl pin 6 and can rotate clockwise or counterclockwise. The counterweight 42 is arranged so that the center of gravity G of the parking pawl 4 is on the side of the counterweight at the center of rotation 44 . When the return spring 5 fails, under the action of the center of gravity G, the parking pawl 4 tends to rotate clockwise.

[0023] The return spring 5 is set on the parking pawl 6, the upper end 52 of the parking pawl return spring 5 is in clearanc...

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PUM

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Abstract

The invention discloses a parking mechanism for an automobile transmission. The right side of a parking pawl is provided with a counterweight, so that the center G of the parking pawl is located on the right side of a parking pawl pin, when a return spring fails, the parking pawl has a clockwise rotation trend under the action of the center G of gravity, the parking pawl is fixed in an original position, the parking pawl is prevented from rotating anticlockwise to enable the pawl to be clamped into a concave tooth groove on the circumference of a parking ratchet, and a vehicle is prevented from automatically parking in driving process to cause that the transmission is locked or cause that the parking state cannot exit a P gear.

Description

technical field [0001] The invention relates to the technical field of automobile transmissions, in particular to a parking mechanism of an automobile transmission. Background technique [0002] The parking mechanism of the automobile speed changer of prior art is as Figure 6 , Figure 7 shown. The parking mechanism includes the parking cam 2 that is sleeved on the parking push rod, the parking pawl 4 with the pawl 41, the parking pawl pin 6 that can rotate the parking pawl 4, and the parking pawl 4 Press the return spring 5 on the parking cam 2, and the parking ratchet 7. The circumference of the parking ratchet 7 is provided with a concave tooth groove 71 and can rotate around the center of the ratchet 72; the parking pawl 4 can be set on the parking pin 6 and can rotate clockwise or counterclockwise; the parking pawl 4 There is a pawl 41 on the left, so that the center of gravity G of the parking pawl 4 is located on the right side of the rotation center 44. When the ...

Claims

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Application Information

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IPC IPC(8): F16H63/34
CPCF16H63/3425F16H63/3433
Inventor 杨大学秦伟宁向鹏刘纪岸王文波
Owner CHONGQING TSINGSHAN IND
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