CN216279338U

CN216279338U - Shifting fork limiting structure and shifting fork assembly

Info

Publication number: CN216279338U
Application number: CN202122948734.0U
Authority: CN
Inventors: 胡知省; 钱璨; 肖丹
Original assignee: Jinhua Janshi Auto Parts Co ltd
Current assignee: Jinhua Janshi Auto Parts Co ltd
Priority date: 2021-11-29
Filing date: 2021-11-29
Publication date: 2022-04-12
Anticipated expiration: 2031-11-29

Abstract

The utility model discloses a shifting fork limiting structure and a shifting fork assembly, and relates to the technical field of shifting forks. Including shift fork and joint sleeve, the slide opening has been seted up at the shift fork top, the equidistance is equipped with a plurality of first trapezoidal pieces on the annular inner wall of shift fork bottom, be formed with first spacing groove between the first trapezoidal piece, the equal spiro union in shift fork both sides has a plurality of bolts, the equidistance is equipped with a plurality of second trapezoidal pieces on the joint sleeve top outer wall, be formed with the second spacing groove between the second trapezoidal piece, first trapezoidal piece and the spacing groove looks adaptation of second, second trapezoidal piece and first spacing groove looks adaptation, all set up the screw hole with bolt looks adaptation on a plurality of second trapezoidal pieces of joint sleeve both sides. The utility model can effectively increase the strength between the shifting fork and the joint sleeve, so that the shifting fork and the joint sleeve are not easy to fall off, can be stably connected together, can better perform gear engaging operation, improves the gear engaging efficiency and prolongs the service life of the reduction gearbox.

Description

Shifting fork limiting structure and shifting fork assembly

Technical Field

The utility model relates to the technical field of shifting forks, in particular to a shifting fork limiting structure and a shifting fork assembly.

Background

The shifting fork mechanism is mainly adopted for shifting gears in the gearbox on the market, and is particularly connected with a speed changing handle through the shifting fork, and the speed changing handle is shifted to drive the shifting fork to shift a middle speed changing gear, so that the input or output speed ratio is changed.

However, the connection stability between the shifting fork and the joint sleeve is poor at present, the shifting fork is easy to separate from the joint sleeve, and an effective limiting structure is lacked to enhance the strength between the shifting fork and the joint sleeve, so that the utility model provides a novel solution.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a shifting fork limiting structure and a shifting fork assembly, so as to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a shift fork limit structure, includes shift fork and joint sleeve, the slide opening has been seted up at the shift fork top, the equidistance is equipped with a plurality of first trapezoidal pieces on the annular inner wall of shift fork bottom, be formed with first spacing groove between the first trapezoidal piece, the equal spiro union in shift fork both sides has a plurality of bolts, the equidistance is equipped with a plurality of second trapezoidal pieces on the joint sleeve top outer wall, be formed with the second spacing groove between the second trapezoidal piece, first trapezoidal piece and second spacing groove looks adaptation, second trapezoidal piece and first spacing groove looks adaptation, all set up the screw hole with bolt looks adaptation on a plurality of second trapezoidal pieces of joint sleeve both sides.

Preferably, a plurality of bolt holes matched with the bolts are formed in the outer walls of the two sides of the shifting fork.

Preferably, the first trapezoid block and the shifting fork are in an integrally formed structure, and the second trapezoid block and the joint sleeve are in an integrally formed structure.

The utility model provides a shifting fork assembly, shifting fork assembly includes first shift fork, second shift fork and the shift fork limit structure that shifts, and sliding connection has second declutch shift shaft, first declutch shift shaft and third declutch shift shaft in proper order on first shift fork, the second shift fork and the shift fork that shifts, equal fixedly connected with dog on second declutch shift shaft, first declutch shift shaft and the third declutch shift shaft, and the last equal symmetry of dog is equipped with the stopper.

Preferably, the two ends of the second shifting fork shaft, the first shifting fork shaft and the third shifting fork shaft are all connected with fixing sleeves in a sliding mode.

Preferably, the third shifting fork shaft is connected with a connecting rod in a sliding mode, and the bottom end of the connecting rod is fixedly connected with the reverse gear shifting fork.

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

this shift fork limit structure and shift fork subassembly through mutually supporting of the first trapezoidal piece that sets up, second trapezoidal piece and bolt isotructure, intensity between can effectual increase shift fork and the clutch collar for be difficult for droing between shift fork and the clutch collar, can be stable link together, what can be better put into gear the operation, improved the efficiency of putting into gear, and improved the life of reducing gear box.

Drawings

FIG. 1 is a first perspective view of the present invention;

FIG. 2 is a second perspective view of the present invention;

FIG. 3 is a schematic perspective view of a first shift fork of the present invention;

fig. 4 is a perspective view of the adapter sleeve of the present invention.

In the figure: 1. a first shift fork; 101. a slide hole; 102. a first trapezoidal block; 103. a first limit groove; 104. a bolt; 2. a second shift fork; 3. a reverse gear shifting fork; 301. a connecting rod; 4. a first fork shaft; 401. fixing a sleeve; 5. a second fork shaft; 6. a third fork shaft; 7. hanging a stop block; 701. a limiting block; 8. a joint sleeve; 801. a second trapezoidal block; 802. a second limit groove; 803. a threaded bore.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that in the description of the present invention, the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience of description and simplification of description, and do not indicate or imply that the referred device or element must have a specific orientation, be configured in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

Further, it will be appreciated that the dimensions of the various elements shown in the figures are not drawn to scale, for ease of description, and that the thickness or width of some layers may be exaggerated relative to other layers, for example.

It should be noted that like reference numerals and letters refer to like items in the following figures, and thus, once an item is defined or illustrated in one figure, it will not need to be further discussed or illustrated in detail in the description of the following figure.

As shown in fig. 1 to 4, the present invention provides a technical solution: the utility model provides a shift fork limit structure, including shift fork and clutch collar 8, sliding hole 101 has been seted up at the shift fork top, the equidistance is equipped with a plurality of first trapezoidal pieces 102 on the annular inner wall of shift fork bottom, be formed with first spacing groove 103 between the first trapezoidal piece 102, the equal spiro union in shift fork both sides has a plurality of bolts 104, the equidistance is equipped with a plurality of second trapezoidal pieces 801 on the outer wall of clutch collar 8 top, be formed with second spacing groove 802 between the second trapezoidal piece 801, first trapezoidal piece 102 and second spacing groove 802 looks adaptation, second trapezoidal piece 801 and first spacing groove 103 looks adaptation, all set up the screw hole 803 with bolt 104 looks adaptation on a plurality of second trapezoidal pieces 801 of clutch collar 8 both sides. It should be noted that the length of the first trapezoid block 102 is greater than that of the second trapezoid block 801, so that the second trapezoid block 801 can be restrained between the second trapezoid blocks 801, and the first trapezoid block 102 and the second trapezoid block 801 are less likely to be separated from each other.

As a specific embodiment, a plurality of bolt holes matched with the bolts 104 are formed in the outer walls of the two sides of the shifting fork.

As a specific example, the first trapezoidal block 102 and the shifting fork are integrally formed, and the second trapezoidal block 801 and the engaging sleeve 8 are integrally formed. Specifically, when mounting the shift fork and the sleeve 8, the sleeve 8 is first aligned with the shift fork so that the first stopper groove 103 is aligned with the second trapezoidal block 801 and the first trapezoidal block 102 is also aligned with the second stopper groove 802, then the sleeve 8 is pushed or tapped so that the sleeve 8 and the shift fork are engaged, then the bolt 104 is inserted into the bolt hole in the shift fork and the bolt 104 is screwed, and one end of the bolt 104 is screwed into the second trapezoidal block 801, and at this time, the mounting of the shift fork and the sleeve 8 is completed.

The utility model provides a shifting fork assembly, shifting fork assembly includes first shift fork 1, second shift fork 2 and reverse gear shift fork 3 and foretell shift fork limit structure, sliding connection has second declutch shift shaft 5, first declutch shift shaft 4 and third declutch shift shaft 6 on first shift fork 1, second shift fork 2 and the reverse gear shift fork 3 in proper order, equal fixedly connected with dog 7 on second declutch shift shaft 5, first declutch shift shaft 4 and the third declutch shift shaft 6, the equal symmetry is equipped with stopper 701 on dog 7. The gear engaging rod is matched with the gear engaging block 7 for gear engaging operation, and the prior art is specific to how to engage. It should be noted that the engaging sleeves 8 in the first and

second shift forks

1 and 2 are in the same horizontal line, and only the second shift fork 2 is an oblique shift fork, and it should be noted that the second shift fork 5, the first shift fork 4, the third shift fork 6, the fixing sleeve 401, and the dog 7 are all in the prior art.

As a specific example, two ends of the second fork shaft 5, the first fork shaft 4 and the third fork shaft 6 are slidably connected with a fixing sleeve 401, and the second fork shaft 5, the first fork shaft 4 and the third fork shaft 6 can slide in the fixing sleeve 401.

As a specific embodiment, a connecting rod 301 is slidably connected to the third fork 6, a bottom end of the connecting rod 301 is fixedly connected to the reverse shift fork 3, and a sliding ring is integrally formed at a top end of the connecting rod 301 and is adapted to the third fork 6.

Specially, when putting into gear, thereby need promote dog 7 on the first declutch shift shaft 4 and promote first declutch shift shaft 4 and remove, and then drive second shift fork 2 and remove, thereby carry out primary putting into gear, and drive first shift fork 1 and remove when promoting dog 7 on the second declutch shift shaft 5, thereby and secondary putting into gear, when needs put into gear, promote dog 7 on the third declutch shift shaft 6, then drive reverse shift fork 3 and remove, accomplish the reverse gear, it needs to know that, whole operation of putting into gear is prior art, as to how to carry out the complex with the gear train, do not do the detailed description.

The utility model can effectively increase the strength between the shifting fork and the joint sleeve 8, so that the shifting fork and the joint sleeve 8 are not easy to fall off, can be stably connected together, can better perform gear engaging operation, improves gear engaging efficiency, and prolongs the service life of the reduction gearbox.

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 utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a shift fork limit structure, includes shift fork and clutch collar (8), its characterized in that: sliding hole (101) have been seted up at the shift fork top, the equidistance is equipped with a plurality of first trapezoidal pieces (102) on the annular inner wall of shift fork bottom, be formed with first spacing groove (103) between first trapezoidal piece (102), the equal spiro union in shift fork both sides has a plurality of bolts (104), the equidistance is equipped with a plurality of second trapezoidal pieces (801) on clutch collar (8) top outer wall, be formed with second spacing groove (802) between second trapezoidal piece (801), first trapezoidal piece (102) and second spacing groove (802) looks adaptation, second trapezoidal piece (801) and first spacing groove (103) looks adaptation, all set up screw hole (803) with bolt (104) looks adaptation on a plurality of second trapezoidal pieces (801) of clutch collar (8) both sides.

2. A shift fork stopper structure according to claim 1, wherein: and a plurality of bolt holes matched with the bolts (104) are formed in the outer walls of the two sides of the shifting fork.

3. A shift fork stopper structure according to claim 1, wherein: the first trapezoid block (102) and the shifting fork are of an integrally formed structure, and the second trapezoid block (801) and the joint sleeve (8) are of an integrally formed structure.

4. A fork assembly, its characterized in that: the shifting fork assembly comprises a first shifting fork (1), a second shifting fork (2), a reverse shifting fork (3) and a shifting fork limiting structure according to any one of claims 1 to 3, wherein the first shifting fork (1), the second shifting fork (2) and the reverse shifting fork (3) are sequentially connected with a second shifting fork shaft (5), a first shifting fork shaft (4) and a third shifting fork shaft (6) in a sliding mode, the second shifting fork shaft (5), the first shifting fork shaft (4) and the third shifting fork shaft (6) are fixedly connected with a dog (7), and the dog (7) is symmetrically provided with limiting blocks (701).

5. A fork assembly according to claim 4, wherein: two ends of the second shifting fork shaft (5), the first shifting fork shaft (4) and the third shifting fork shaft (6) are all connected with a fixed sleeve (401) in a sliding mode.

6. A fork assembly according to claim 4, wherein: and the third shifting fork shaft (6) is connected with a connecting rod (301) in a sliding manner, and the bottom end of the connecting rod (301) is fixedly connected with the reverse gear shifting fork (3).