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Selector fork for a change-speed gearbox

A technology for shifting forks and gearboxes, which is applied in the field of shifting forks, can solve the problems of difficulty in welding and cannot be realized, and achieve the effects of improving economy, reducing the weight of shifting forks, and connecting them firmly.

Inactive Publication Date: 2009-03-04
谢夫勒科技有限两合公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, it is difficult or impossible to weld when the carbon content in steel is too high

Method used

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  • Selector fork for a change-speed gearbox
  • Selector fork for a change-speed gearbox
  • Selector fork for a change-speed gearbox

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] FIG. 1 shows a shift fork 1 for a gearbox. The shift fork 1 is made up of three parts which are independently made and connected together. Among them, firstly a fork-shaped base body 2, then a support element 3, and finally a transmission element 4, which interacts with a not shown operating mechanism, which pushes the shift fork in translation to a position also not shown. on the axis. Wherein the fork-shaped base body 2 clamps the gear in the gear box and pushes it along the axial direction.

[0029] The support 3 is currently formed by two sleeves (see especially FIG. 2 ), which are aligned with each other and allow the passage of a support shaft, not shown.

[0030] All three said parts 2 , 3 , 4 are made of sheet metal, that is to say they are fabricated from sheet metal. Thickness of metal plate d 1 、d 2 (See Image 6 ) is chosen such that it exhibits the best stiffness for a particular member stress. In principle it is also possible to choose a different th...

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PUM

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Abstract

The invention relates to a selector fork (1) for a change-speed gearbox having a basic body (2) of fork-shaped configuration, a bearing element (3) and a driver element (4) which is suitable for interaction with an actuating element, wherein at least two of the three parts basic body (2), bearing element (3) and driver element (4) comprise separately manufactured parts which are connected permanently to one another. In order for it also to be possible for parts which cannot be welded or can be welded only with difficulty to be connected reliably to one another, there is provision according to the invention for the permanent connection between at least two of the separately manufactured parts (2, 3, 4) to be produced by a riveted connection or by an upset-forging operation (5).

Description

technical field [0001] The invention relates to a shift fork for a gearbox, which has a fork-shaped base body, a support element and a transmission element adapted to cooperate with an operating mechanism, wherein at least one of the three parts of the base body, the support element and the transmission element Two are formed from separately manufactured parts that are permanently connected to each other. Background technique [0002] The shift forks required for shifting gears in gear transmissions are generally produced as aluminum or steel castings, as is disclosed, for example, in EP 0 479 346 B1. [0003] It is also possible to manufacture the shift fork from sheet metal, wherein the entire fork is produced from a separate sheet metal part by stamping and shaping. Such solutions are disclosed, for example, in DE 199 19 270 A1 and DE 199 19 271 A1. [0004] In other cases, shift forks of the type mentioned above are also used, as disclosed, for example, in DE 10 309 40...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H63/32B21D39/03
CPCF16H2063/327F16H2063/321F16H63/32
Inventor 沃尔克·佩希特尔劳斯·克拉默
Owner 谢夫勒科技有限两合公司
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