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Mechanical automatic transmission selector shift actuator

An automatic speed change and actuator technology, applied in mechanical equipment, transmission control, components with teeth, etc., can solve the problems of piston and working cylinder life influence, poor production inheritance, and high cost of transformation investment. The effect of compact structure, small size of mechanism and low cost of renovation investment

Active Publication Date: 2016-03-30
DONGFENG MOTOR CORP HUBEI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] When the working piston in the working cylinder of the shifting device in the current selection and shifting actuator is displaced left and right, the area of ​​the working surface is not equal, resulting in unequal pressure, which has an impact on the life of the piston and the working cylinder, and the structure It is more complicated, the production inheritance is not good enough, and the investment cost of transformation is high

Method used

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  • Mechanical automatic transmission selector shift actuator
  • Mechanical automatic transmission selector shift actuator
  • Mechanical automatic transmission selector shift actuator

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Embodiment Construction

[0026] The present invention will be further described below in conjunction with accompanying drawing:

[0027] Such as figure 1 As shown, the present invention includes a gear selection mechanism and a gear shift mechanism. A gear selection piston 5 is arranged in the gear selection working cylinder 14 of the gear selection mechanism. The shifting head 11 is matched and connected, and the shifting head 11 is sleeved on the shifting shaft 8, such as figure 2 As shown, the shifting mechanism includes a shifting working oil cylinder 17, and the shifting working oil cylinder 17 has two cylinder blocks on the left and right sides, and the shifting piston rod 10 that is suspended and moved left and right is arranged in the left and right cylinders, and the shifting working oil cylinder 17 is provided in the left cylinder. There is a first piston sleeve 18, a second piston sleeve 19 is arranged in the shift working oil cylinder 17 right cylinder, the shift piston rod 10 is support...

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Abstract

The invention relates to a gear-selecting and shifting actuating mechanism for an automatic mechanical transmission case and belongs to the field of automobile components. The gear selecting-shifting actuating mechanism comprises a gear-selecting mechanism and a gear-shifting mechanism; a gear-selecting piston is arranged in a gear-selecting operating oil cylinder in the gear-selecting mechanism and is connected with a gear selecting-shifting shifting head in a matching manner; the gear selecting-shifting shifting head is sleeved on a gear-selecting and shifting shaft; gear-shifting piston rods are arranged in a left cylinder and a right cylinder of a gear-shifting operating oil cylinder in the gear-shifting mechanism; a first piston sleeve is arranged in the left cylinder of the gear-shifting operating oil cylinder; a second piston sleeve is arranged in the right cylinder of the gear-shifting operating oil cylinder; the sum of the areas of the left end parts of the gear-shifting piston rods and the working surface of the first piston sleeve in the left cylinder of the operating oil cylinder is equal to that of areas of the right end parts of the gear-shifting piston rods and the working surface of the second piston sleeve in the right cylinder of the operating oil cylinder; the middle bottoms of the gear-shifting piston rods are hinged with a gear-shifting shifting block; and the gear-shifting shifting block is sleeved on the gear-selecting and shifting shaft. The gear-selecting and shifting actuating mechanism has the benefit that the gear-selecting and shifting action can be frequently performed within a short time, so that the operation strength of a driver is greatly reduced.

Description

technical field [0001] The invention relates to an automobile component, in particular to a gear selection and shifting actuator of a mechanical automatic transmission. Background technique [0002] For the mechanical automatic transmission, it retains the original basic components such as the synchronizer, and uses electronic control technology to transform the traditional control system to realize automation. Generally, there are three driving modes: electric-hydraulic, electric-pneumatic and all-electric. [0003] When the working piston in the working cylinder of the shifting device in the current selection and shifting actuator is displaced left and right, the area of ​​the working surface is not equal, resulting in unequal pressure, which has an impact on the life of the piston and the working cylinder, and the structure It is more complicated, the inheritance of production is not good enough, and the investment cost of transformation is high. Therefore, it is very b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H59/02F16H61/34F16H61/30
Inventor 汪振晓蔡未末刘志柱宋华洋
Owner DONGFENG MOTOR CORP HUBEI
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