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Shift fork assembly

A shift fork and shift fork technology, applied to mechanical control devices, components with teeth, instruments, etc., can solve problems such as reverse gear whistling, achieve wide adaptability, simple overall layout, and prevent axial shifting moving effect

Active Publication Date: 2019-02-01
CHONGQING TSINGSHAN IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the upper and reverse gears of the mainstream transmissions all adopt a straight-toothed sliding structure, and there will be a "click" sound during the process of shifting the reverse gear. At the same time, due to the straight-tooth transmission, the reverse gear has serious howling.

Method used

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  • Shift fork assembly
  • Shift fork assembly
  • Shift fork assembly

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Such as Figure 1 to Figure 4 As shown, the shift fork assembly of the present invention includes a forward shift fork assembly 1 , a shift lever 2 , a shift fork assembly 3 with an inner hole, and a reverse shift fork assembly 4 . Wherein, the forward gear shift fork assembly 1 in this embodiment adopts a five-speed gear shift fork assembly, and the forward gear shift fork assembly 1 includes a forward gear shift sleeve 10 and is arranged on the forward gear shift sleeve 10 The forward gear shift fork 11, the forward gear shift sleeve 10 and the forward gear shift fork 11 are cast as one in the die-casting process. The forward gear shift sleeve 10 adopts die-casting aluminum alloy, and the forward gear shift fork 11 is a steel casting, which adopts local high-temperature quenching. During die-casting, the forward gear shift fork 11 is finished and put into special tooling, and the forward gear shift sleeve 10 and the forward gear shift fork 11 are die-casted to form o...

Embodiment 2

[0059] The difference between this embodiment and Example 1 lies in the structures of the first holding component and the second holding component, such as Figure 9 As shown, the first holding assembly in this embodiment includes a first seat body 7 and a first elastic member 70. The first seat body 7 is sleeved on the shift rod 2 and fixed integrally with the shift rod 2. The first seat body 7 is a sleeve, the inner hole of the sleeve is a stepped hole, wherein the inner diameter of the large diameter hole of the stepped hole is larger than the diameter of the gear bar 2, therefore, a assembly space. One end of the first elastic member 70 is connected to the end of the forward gear shift fork assembly axially limited by the shift fork assembly, that is, one end of the first elastic member 70 is connected to the axial end of the forward gear shift sleeve 10, The other end of the first elastic component 70 is connected to the first base body 7 , and the first elastic componen...

Embodiment 3

[0062] The difference between this embodiment and the actual example 1 is that the first holding component is the first holding component in the embodiment 2, and the rest of the structure is completely the same as that of the embodiment 1, which will not be repeated here.

[0063] For the shifting process of this embodiment, please refer to the processes of Embodiment 1 and Embodiment 2, and details are not repeated here.

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Abstract

The invention discloses a shifting fork assembly. One end of a gear rod penetrates a gear shifting fork assembly and a forward gear shifting fork assembly in sequence, and the gear rod is in clearance fit with the gear shifting fork assembly and the forward gear shifting fork assembly. The forward gear shifting fork assembly is axially limited through one end of the gear shifting fork assembly. The shifting fork assembly further comprises a reverse gear shifting fork assembly, and the other end of the gear rod penetrates the reverse gear shifting fork assembly to be in clearance with the reverse gear shifting fork assembly. The reverse gear shifting fork assembly is axially limited through the other end of the gear shifting fork assembly. A first maintaining assembly for maintaining the position of the forward gear shifting fork assembly during reverse gear shifting is arranged on the gear rod or one end of the forward gear shifting fork assembly and one end of the gear shifting fork assembly, and a second maintaining assembly for maintaining the position of the reverse gear shifting fork assembly during forward gear shifting is arranged on the gear rod or the other end of the reverse gear shifting fork assembly and the other end of the gear shifting fork assembly. Although the forward gear shifting fork assembly and the reverse gear shifting fork assembly are on the same gear shifting rod, a gear shifting fork on the opposite side cannot be influenced at all in the executing process.

Description

technical field [0001] The invention relates to the technical field of transmissions, in particular to a shift fork assembly. Background technique [0002] With the development of the economy, people's living standards are constantly improving, and at the same time the rapid development of the automobile industry, more and more small cars have entered ordinary families and gradually become household necessities. As people continue to recognize and sense cars, their requirements for transmissions are also increasing, especially in terms of reverse gear shifting performance. At present, the upper and reverse gears of the mainstream transmissions all adopt a straight-toothed sliding structure, and there will be a "click" sound during the process of shifting the reverse gear. At the same time, due to the straight-toothed transmission, the reverse gear has serious howling. [0003] In order to solve the above-mentioned problems in the reverse gear, more and more transmissions ha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H63/32F16H63/34
CPCF16H63/32F16H63/34
Inventor 黄刚强庄周
Owner CHONGQING TSINGSHAN IND