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gear shifting device

A technology of gear transmission and shifting device, applied in the direction of mechanical control device, components with teeth, transmission device control, etc., can solve problems such as failure, breakout, increase manufacturing cost, etc.

Active Publication Date: 2015-09-09
SCHAEFFLER TECH AG & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this construction is that the two sheets have to be connected to each other, which increases the manufacturing effort and increases the quality of the entire shifting device
In addition, in the case of very high shifting forces, the selector finger can deform the shift gate, and thus, especially if the selector gate is made of thin material, the selector finger can be removed from the The shift port comes out and may cause malfunction
In particular, if the shift opening is arranged unfavorably relative to the bearing point of the selector fork, the shift opening may be deformed perpendicular to the shifting direction

Method used

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Examples

Experimental program
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Embodiment Construction

[0021] figure 1 The shifting device 1 is shown with a shift fork 5 and a shift shaft 2 on which a component 7 in the form of a bushing 8 is arranged in a rotationally fixed manner. The bushing 8 has a shifting finger 4 as shifting element 3 , which engages in a shift opening 6 of a shifting fork 5 . The shift opening 6 is designed as a punched recess in the shift arm 14 . The selector arm 14 is connected to the base body 10 and forms the selector fork 5 together with this base body and the guide tube 9 .

[0022] according to figure 1 shows the shifting device 1 in the neutral state, wherein, via the preselection gate, the shifting finger 4 is positioned in the axial direction of the shifting shaft 2 such that it lies in the plane of the shifting arm 14 middle. In this state, the selector finger 4 is surrounded laterally in the shifting direction by the mouth walls 17, 18, but at the same time is spaced apart by a gap 19 or 20 in each case, so that due to the gap there is ...

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PUM

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Abstract

The invention relates to a shift arrangement (1) for a gear-change transmission, which arrangement has a selector shaft (2), with a shift element (3), and a gearshift fork (5), the gearshift fork (5) having a selector arm (9) with selector jaws (6) which surround the selector shaft (2) radially and can be brought into engagement with the shift element (3) such that a movement of the selector shaft (2) can move the gearshift fork (5), the selector jaws (6) being supported in the peripheral direction offset relative to the shift element (3) by the selector shaft (2) or by a component (7) disposed thereon when forces which exceed a threshold value are applied by deformation to the selector shaft (2) or to the component (7) disposed thereon as an additional support point (13).

Description

technical field [0001] The invention relates to a shifting device of a gear transmission having a shifting shaft with a shifting element and a shifting fork with a shifting arm and a shifting opening, wherein the shifting opening radially surrounds the shifting The shaft and can engage with the selector element, so that the selector fork can be moved by actuating the selector shaft. Background technique [0002] Shifting devices, especially for gear transmissions, usually have a selector fork, which is connected to a selector lever. The shift fork usually engages positively in a sliding sleeve of the synchronizer, by means of which the idler gear is coupled to the main or countershaft via a coupling element. The selector fork is usually rigidly connected to the selector lever. As an alternative to this, however, a selector fork inserted as a selector rocker is arranged axially displaceable and / or rotatably relative to the selector lever. The selector fork is then actuated...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H63/20F16H63/32
CPCF16H63/30F16H2063/202F16H2063/3086F16H2063/3076
Inventor 马蒂亚斯·费尔巴哈约亨·洛菲尔曼克劳斯·维塞尔曼
Owner SCHAEFFLER TECH AG & CO KG