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Transmission head cover assembly

A transmission and top cover technology, which is applied to components with teeth, belts/chains/gears, mechanical equipment, etc., can solve the problems of complex processing technology, complex structure and functions, and inaccurate gear selection, etc., and achieve convenience Symmetrical layout, compact structure, precise gear selection effect

Active Publication Date: 2016-10-26
CHINA FIRST AUTOMOBILE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] For the top cover of the current domestic 6-speed transmission, it is composed of a top cover housing, a shift shaft, a shift dial, and a return spring. Its disadvantages are: simple functions, resulting in too complicated structures and functions of other matching components, and high production costs. ;There is no neutral switch and interlock mechanism in the top cover assembly. This function is arranged at the transmission object or the gear box, which makes its structure too complicated; , resulting in a large axial length of the entire structure; gear selection and shifting are completed by the same dial, the processing technology of the dial is complicated, and the gear selection is not accurate enough

Method used

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Embodiment Construction

[0023] Such as figure 1 , 2 , 3, the passenger car transmission top cover assembly of the present invention includes a top cover housing 1, a rear end cover 11, a front end cover 12, a shift shaft 2, a left sliding bush 21, a right sliding bush 22, a Shaft pin 23, shift sleeve 3, cylindrical pin 31, interlock plate 4, four shift dials 51, 52, 53, 54, self-locking block 6, first return spring 7, baffle plate 71, Spacer 72, left limit spring retainer 73, left spring washer 74, right spring washer 75, right limit spring retainer 76, second return spring 8, spring washer 81, plunger 82, vent plug 9. Neutral switch 10.

[0024] The rear end cover 11 and the front end cover 12 are respectively fixed on the two ends of the top cover shell 1 . The gear shift sleeve 3 is installed in the top cover shell 1, and the axial opening long groove 32, the pit 33 and the circumferential groove 34 are processed on it; the cylindrical pin 31 is installed on the top cover shell 1, and its lower...

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PUM

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Abstract

The invention relates to a transmission head cover assembly. A gear selecting and shifting mechanism of the assembly comprises four gear shifting thumbing heads. A gear shifting shaft is supported in a top cover shell and sleeved with the four gear shifting thumbing heads. A self-locking block is fixed to the gear shifting shaft. An interlocking plate is provided with a cross-shaped groove and comprises a connection hook. The interlocking plate is connected with the self-locking block through the connection hook. The gear shifting thumbing heads are sleeved with the cross-shaped groove of the interlocking plate. A gear shifting shaft pin is installed on the gear shifting shaft. The two ends of the gear shifting shaft pin are located in inner cavities of the corresponding gear shifting thumbing heads. A first return spring is installed on the gear shifting shaft and located between a baffle and a spacer bush of the top cover shell. A self-lock pin assembly is installed on the top cover shell and comprises a compressed spring and a steel ball. At the neutral gear, the steel ball is located in an axial groove of the self-locking block. When the self-locking block rotates along with the gear shifting shaft to conduct gear shifting, the steel ball of the self-lock pin assembly falls to the outer sides of two axial protrusions. The transmission head cover assembly is accurate in gear shifting and compact in structure, the assembly and maintenance process of a speed change control mechanism is simplified, and cost is reduced.

Description

technical field [0001] The invention relates to a novel transmission top cover assembly, which belongs to the field of passenger vehicle transmissions. Background technique [0002] For the top cover of the current domestic 6-speed transmission, it is composed of a top cover housing, a shift shaft, a shift dial, and a return spring. Its disadvantages are: simple functions, resulting in too complicated structures and functions of other matching components, and high production costs. ;There is no neutral switch and interlock mechanism in the top cover assembly. This function is arranged at the transmission object or the gear box, which makes its structure too complicated; , resulting in a large axial length of the entire structure; gear selection and shifting are completed by the same dial, and the processing technology of the dial is complicated, and the gear selection is not accurate enough. Contents of the invention [0003] The technical problem to be solved by the pres...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H63/30
CPCF16H63/30F16H2306/00
Inventor 李云亮高方吴仕赋袁帅陈亮赫建勇任明辉吴荣华
Owner CHINA FIRST AUTOMOBILE
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