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Parking locking mechanism for automatic transmission

An automatic transmission, parking lock technology, applied in mechanical equipment, transmission control, components with teeth, etc., can solve the problems of complex structure, difficult layout, high cost, achieve a high degree of generalization, reasonable structure, reduce The effect of friction

Inactive Publication Date: 2015-04-22
CHONGQING CHANGAN AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Most of the existing parking lock mechanisms for automatic transmissions have the problems of complex structure, difficult layout and high cost

Method used

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  • Parking locking mechanism for automatic transmission
  • Parking locking mechanism for automatic transmission
  • Parking locking mechanism for automatic transmission

Examples

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Effect test

Embodiment Construction

[0022] The present invention will be further described in detail below in conjunction with the accompanying drawings and examples. The following examples are only used to explain the present invention, and do not constitute a limitation to the protection scope of the present invention.

[0023] Such as figure 1 The parking lock mechanism of the automatic transmission shown includes a shift rocker arm 1 , a parking gear (not shown in the figure) and a parking pawl 6 . The shift rocker arm 1 is fixed on the shift shaft 2, and the shift shaft 2 is driven to rotate by the shift rocker arm 1, and drives the parking pawl 6 to move through the drive assembly.

[0024] The rear end of the parking pawl 6 is rotatably fixed on the transmission housing, and the top of its front end has a raceway surface 602 that is in contact with the roller, and the raceway surface has a bulge 603, and the bottom of the front end of the parking pawl has a Mesh teeth 601 .

[0025] The drive assembly i...

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PUM

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Abstract

The invention discloses a parking locking mechanism for an automatic transmission. The parking locking mechanism for the automatic transmission comprises a shifting rocker arm, a parking gear and a parking pawl; the shifting rocker arm is fixed on a shifting shaft and drives the parking pawl to move through a driving assembly; the driving assembly comprises a parking rocker arm, a parking pushing rod and a roller seat; the parking rocker arm is fixed on the shifting shaft; one end of the parking pushing rod is hinged to the parking rocker arm and while the other end of the parking pushing rod is mounted to the roller seat; a roller is arranged on the roller seat; a returning spring is arranged between the roller seat and the parking pawl. The parking locking mechanism is reasonable and compact in structure, and reliable in performance.

Description

technical field [0001] The invention relates to a vehicle transmission component, in particular to a parking locking mechanism of an automatic transmission. Background technique [0002] The motor vehicle parking lock mechanism is used to lock the motor vehicle when the vehicle is stationary, and is realized by fixing and locking the transmission shaft of the vehicle in the direction of rotation, and belongs to a common safety device for vehicles. [0003] The parking lock mechanism is particularly suitable for use in motor vehicles with an automatic transmission or in hybrid or electric vehicles. [0004] When the parking lock mechanism brakes, a large load acts on the components involved. If the vehicle is still running at this time, the load will be applied by the parking lock mechanism to the drive shaft where the vehicle is locked, so , the components of the parking lock mechanism are required to have sufficient reliability. [0005] Most of the existing parking lock ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H63/34
CPCF16H63/34
Inventor 曾俊赵宗琴刘诗王鑫夏灵刘刚余洪
Owner CHONGQING CHANGAN AUTOMOBILE CO LTD
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