CN214888801U

CN214888801U - Wear-resistant transmission shifting fork

Info

Publication number: CN214888801U
Application number: CN202023221834.5U
Authority: CN
Inventors: 孙刚; 郭淑森
Original assignee: Qingdao Pingdu Tianxin Cast Steel Co ltd
Current assignee: Qingdao Pingdu Tianxin Cast Steel Co ltd
Priority date: 2020-12-28
Filing date: 2020-12-28
Publication date: 2021-11-26
Anticipated expiration: 2030-12-28

Abstract

The utility model discloses a derailleur shift fork that stand wear and tear, including shifting fork head, shifting fork foot and shift fork handle, the shift fork handle is connected below the shifting fork head, and the shifting fork foot is connected below the shifting fork handle, and the inboard of shifting fork foot is equipped with the strengthening rib, and the bottom welding of shifting fork foot has the footing piece, and the rectangle notch has been seted up to footing piece one end, and the spout has been seted up at the upper and lower both ends of rectangle notch, is equipped with the roller bearing in the rectangle notch, and the both ends of roller bearing are installed respectively on the installation piece, and the installation piece is installed in the spout, and beneficial effect is: the utility model provides a stand wear and tear derailleur shift fork has the footing piece in the bottom welding of shift fork foot, and the rectangle notch has been seted up to the footing piece, has installed roller bearing, installation piece, spring etc. in the rectangle notch, can make the roller bearing can all the time with the surface contact of accelerator through the spring, and the roller bearing makes the friction on footing piece and derailleur surface become rolling friction simultaneously, has reduced the wearing and tearing volume, has increased the wearability of pulling out the fork.

Description

Wear-resistant transmission shifting fork

Technical Field

The utility model relates to a derailleur pulls out fork device field specifically is a derailleur shift fork that stand wear and tear.

Background

The shifting fork is a component on the automobile gearbox, is connected with a speed change handle and is positioned at the lower end of the handle, and shifts the middle speed change wheel to change the input/output speed ratio. The shifting fork is mainly used for shifting gears of the clutch.

However, in the process of automobile speed change, the shifting fork is often worn and abraded due to long-time speed change, so that normal and practical effects are affected on one hand, and accidents can happen due to failed speed change on the other hand.

Therefore, the utility model provides a derailleur shift fork that stand wear and tear is used for solving above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a derailleur shift fork that stand wear and tear to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a stand wear and tear derailleur shift fork, includes shifting fork head, shifting fork foot and shift fork handle, and the shift fork handle is connected below the shifting fork head, and the shifting fork foot is connected below the shifting fork handle, and the inboard of shifting fork foot is equipped with the strengthening rib, and the bottom welding of shifting fork foot has the footing piece, and rectangle notch has been seted up to footing piece one end, and the spout has been seted up at the upper and lower both ends of rectangle notch, is equipped with the roller bearing in the rectangle notch, and the both ends of roller bearing are installed respectively on the installation piece, and the installation piece is installed in the spout.

Preferably, one side vertical welding of installation piece has the spacing post of second, and the cover has the spring on the spacing post of second, and with the one end fixed connection of spring, the other pot head of spring is on first spacing post, and with first spacing post fixed connection, first spacing post vertical welding is on the inner wall of rectangle notch, can make the roller bearing can be all the time with the surface contact of accelerator through the spring, the roller bearing makes the friction on footing piece and derailleur surface become rolling friction simultaneously, the wearing and tearing volume has been reduced, the wearability of pulling out the fork has been increased.

Preferably, the strengthening rib has two sets ofly, and the radian of strengthening rib is the same with the inboard radian of shift fork foot, and two sets of strengthening rib supports leave the clearance, and the coating has lubricating oil in the clearance, and the strengthening rib can increase the structural stability of shift fork foot on the one hand, and the lubrication in clearance has can the friction reduction between the on the other hand strengthening rib.

Preferably, the one end of spout is equipped with the stopper, and the width of stopper equals the degree of depth of spout, can make the installation piece can only slide in the spout through the stopper, has avoided the slippage accident.

Compared with the prior art, the beneficial effects of the utility model are that:

according to the wear-resistant transmission shifting fork, the bottom foot block is welded at the bottom end of the shifting fork foot, the bottom foot block is provided with the rectangular notch, the roller, the mounting block, the spring and the like are mounted in the rectangular notch, the roller can be always in contact with the surface of an accelerator through the spring, and meanwhile, the friction between the bottom foot block and the surface of the transmission is changed into rolling friction through the roller, so that the wear loss is reduced, and the wear resistance of the shifting fork is improved;

the utility model provides a pair of stand wear and tear derailleur shift fork is equipped with the strengthening rib in the inboard of shift fork foot, and two sets of strengthening rib supports leave the clearance, and the lubricating oil has been paintd in the clearance, and the strengthening rib can increase the structural stability of shift fork foot on the one hand, and the lubrication in clearance has the friction reduction between the on the other hand strengthening rib.

Drawings

FIG. 1 is a perspective view of a wear resistant transmission fork;

fig. 2 is an exploded view of the bottom leg block.

In the figure: shifting fork head 1, shifting fork foot 2, shifting fork handle 3, strengthening rib 4, footing piece 5, rectangle notch 6, spout 7, roller 8, installation piece 9, spring 10, first spacing post 11, spacing post 12 of second, stopper 13.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below. The embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative work, all belong to the protection scope of the present invention.

Referring to fig. 1 to fig. 2, the present invention provides a technical solution: the utility model provides a derailleur shift fork that stand wear and tear, including shifting fork head 1, shift fork foot 2 and shift fork handle 3, shift fork handle 3 is connected below shifting fork head 1, shift fork foot 2 is connected below shifting fork handle 3, shift fork foot 2's inboard is equipped with strengthening rib 4, shift fork foot 2's bottom welding has end foot piece 5, rectangle notch 6 has been seted up to end foot piece 5 one end, spout 7 has been seted up at the upper and lower both ends of rectangle notch 6, be equipped with roller bearing 8 in the rectangle notch 6, install respectively on installation piece 9 at roller bearing 8's both ends, installation piece 9 is installed in spout 7.

One side vertical welding of installation piece 9 has the spacing post 12 of second, the cover has spring 10 on the spacing post 12 of second, and with the one end fixed connection of spring 10, the other pot head of spring 10 is on first spacing post 11, and with first spacing post 11 fixed connection, first spacing post 11 vertical welding is on the inner wall of rectangle notch 6, can make roller bearing 8 can be all the time with the surface contact of accelerator through spring 10, roller bearing 8 makes the friction on footing piece 5 and derailleur surface become rolling friction simultaneously, the wearing and tearing volume has been reduced, the wearability of pulling out the fork has been increased.

The strengthening rib 4 has two sets ofly, and the radian of strengthening rib 4 is the same with the inboard radian of shift fork foot 2, and the clearance is left to 4 supports of two sets of strengthening ribs, and the coating has lubricating oil in the clearance, and strengthening rib 4 can increase the structural stability of shift fork foot 2 on the one hand, and the lubrication in clearance has can reduce the friction between the strengthening rib 4 on the other hand.

One end of the sliding chute 7 is provided with a limiting block 13, the width of the limiting block 13 is equal to the depth of the sliding chute 7, and the mounting block 9 can only slide in the sliding chute 7 through the limiting block 13, so that slipping accidents are avoided.

The working principle is as follows: the shift fork is in the practicality, the declutch shift shaft can drive declutch shift head 1 and rotate, declutch shift head 1 will drive declutch shift foot 2 and rotate, declutch shift foot 2 can drive end foot piece 5 and rotate on the derailleur, so that the derailleur produces the variable speed effect, end foot piece 5 is at the derailleur in-process, can produce the junction with the derailleur, roller bearing 8 on end foot piece 5 will this pressurization this moment, under spring 10's effect, can keep with derailleur surface contact, rotate simultaneously, end foot piece 5 is direct and the derailleur contact in the past has been changed, make end foot piece 5 become rolling friction with the surperficial friction of derailleur through roller bearing 8, the wearing and tearing volume has been reduced, the wearability of declutch shift has been increased.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a stand wear and tear derailleur shift fork, includes shifting fork head (1), shift fork foot (2) and shift fork handle (3), its characterized in that: the fork handle (3) is connected below the fork head (1), the fork foot (2) is connected below the fork handle (3), the inboard of fork foot (2) is equipped with strengthening rib (4), the bottom welding of fork foot (2) has end foot piece (5), rectangle notch (6) have been seted up to end foot piece (5) one end, spout (7) have been seted up at the upper and lower both ends of rectangle notch (6), be equipped with in rectangle notch (6) roller bearing (8), install respectively on installation piece (9) at the both ends of roller bearing (8), install in spout (7) installation piece (9).

2. A wear resistant transmission fork according to claim 1, wherein: one side vertical welding of installation piece (9) has spacing post of second (12), and the cover has spring (10) on spacing post of second (12), and with the one end fixed connection of spring (10), the other pot head of spring (10) is on first spacing post (11), and with first spacing post (11) fixed connection, and first spacing post (11) vertical welding is on the inner wall of rectangle notch (6).

3. A wear resistant transmission fork according to claim 1, wherein: the reinforcing ribs (4) are two groups, the radian of the reinforcing ribs (4) is the same as the inner side radian of the shifting fork foot (2), the supports of the two groups of reinforcing ribs (4) are provided with gaps, and lubricating oil is smeared in the gaps.

4. A wear resistant transmission fork according to claim 1, wherein: one end of the sliding groove (7) is provided with a limiting block (13), and the width of the limiting block (13) is equal to the depth of the sliding groove (7).