CN214999344U

CN214999344U - Gear shifting block

Info

Publication number: CN214999344U
Application number: CN202120083512.4U
Authority: CN
Inventors: 毛孙平
Original assignee: Zhejiang Weien Machinery Co ltd
Current assignee: Zhejiang Weien Machinery Co ltd
Priority date: 2021-01-13
Filing date: 2021-01-13
Publication date: 2021-12-03
Anticipated expiration: 2031-01-13

Abstract

The utility model provides a shift block belongs to gearbox accessories technical field. It has solved the current relatively poor problem of stability of trading dog and declutch shift shaft limit structure. The gear shifting block comprises a gear shifting block body, wherein a sleeve portion is arranged on the gear shifting block body and used for axially assembling a gear shifting shaft, an axially assembled limiting structure is arranged between the sleeve portion and the gear shifting shaft and comprises a limiting block, an annular limiting groove is formed in the outer wall of the gear shifting shaft, the limiting block is elastically assembled on the inner wall of the sleeve portion, and when the sleeve portion and the gear shifting shaft are assembled, the limiting block is elastically clamped in the annular limiting groove of the gear shifting shaft. The utility model has the advantages of reasonable design, simply, piece body and the stable connection of shifting fork axle shift, the spacing cooperation stable in structure of shifting fork axle and the piece body axial of shifting, difficult wearing and tearing between shifting fork axle and the piece body of shifting, long service life, convenient to use.

Description

Gear shifting block

Technical Field

The utility model belongs to the technical field of gearbox accessories, a shift block is related to.

Background

The gear shifting control modes of the automobile gearbox are various, and generally, according to the gear number of the gearbox, a plurality of shifting forks with different gears and shifting fork shafts with the same number as the shifting forks are designed.

The shift block is an important part in the automobile gearbox, the shift block is used for being matched with the shifting fork shaft in a conversion mode, the shift block generally comprises a shift block body, the shifting fork shaft penetrates through the shift block body, and the shift block body and the shifting fork shaft are axially limited and assembled.

The existing shifting block and shifting fork shaft are unstable in installation and easy to damage, the stability of the shifting block and the shifting fork shaft assembly limiting structure is poor, the use is influenced, the shifting fork shaft and the shifting block are easy to wear, and the service life of the shifting block is shortened.

Disclosure of Invention

The utility model aims at the above-mentioned problem that exists among the prior art, provide a simple structure, the piece body of shifting gears and shifting fork hub connection are firm, convenient assembling, long service life's the dog that trades.

The purpose of the utility model can be realized by the following technical proposal: a gear shifting block comprises a gear shifting block body, wherein a sleeve portion is arranged on the gear shifting block body, a gear shifting groove is formed in the outer wall of the sleeve portion and used for clamping and assembling a gear shifting block on a gear shifting shaft arm, a gear shifting guide rod is arranged at one end of the sleeve portion and used for guiding and assembling a gear selecting guide block, and the sleeve portion is used for axially assembling a gear shifting shaft.

This shift block passes through the spacing cooperation of sleeve portion and declutch shift shaft axial assembly, and limit structure is comparatively stable, facilitates the use, can prevent effectively that sleeve portion, declutch shift shaft from the position unstability and influencing work in the course of the work, and structural stability is good, long service life, convenient to use.

In the above-mentioned shift block, the sleeve portion is provided with a through hole arranged in the radial direction, the limit block is adapted in the through hole, the outer hole of the through hole is spirally connected with a lower bolt, an elastic block is arranged between the lower bolt and the limit block, and the limit block and the lower bolt are elastically abutted and matched through the elastic block. The purpose that sets up like this makes things convenient for stopper elastic fit in the through hole, and the radial that can adjust the stopper through the connected mode of bolt spiral down supports to lean on effort, convenient to use.

In the above gear shifting block, the limiting block is cylindrical, the head of the limiting block is hemispherical, and the head of the limiting block is matched with the annular limiting groove of the gear shifting shaft. The purpose of setting up like this is the screens cooperation that makes things convenient for the head of stopper and the annular spacing groove of gear shift axle.

In the above shift block, the sleeve portion has a radially disposed assembly hole, the center line of the assembly hole overlaps the center line of the through hole, a limit pin and a compression spring are adapted in the assembly hole, an upper bolt is spirally connected to an outer orifice of the assembly hole, the compression spring is located between the limit pin and the upper bolt, and the limit pin extends out of the assembly hole and is clamped in an annular limit groove of the shift shaft. The purpose that sets up like this makes things convenient for the spacer pin elastic fit in the pilot hole, and the radial that can adjust the spacer pin through the connected mode of last bolt spiral supports to lean on effort, convenient to use.

In the above gear shift block, the stopper pin is cylindrical, the head of the stopper pin is hemispherical, and the head of the stopper pin is matched with the annular stopper groove of the gear shift shaft. The purpose of setting up like this is the screens cooperation that makes things convenient for the head of spacer pin and the annular spacing groove of gear shift axle.

In foretell shift block, spacer pin, last bolt between be provided with the rubber sleeve, compression spring cover establish outside the rubber sleeve, the lower extreme of last bolt have the grafting portion one of downward protruding setting, last bolt wear to locate the upper end of rubber sleeve through grafting portion one axial, the upper end of spacer pin have the grafting portion two of the protruding setting that makes progress, the spacer pin wear to locate the lower extreme of rubber sleeve through grafting portion two axial. The purpose of this setting is to make upper bolt, spacer pin axial assembly stable structure.

In the gear shifting block, annular grooves are formed in the outer wall of the rubber sleeve at intervals in the axial direction. The purpose of this arrangement is to facilitate axial deformation of the rubber sleeve.

Compared with the prior art, this trade dog's advantage does: structural design is reasonable, simple, and piece body and the declutch shift shaft of shifting are firm to be connected, and declutch shift shaft and the spacing cooperation stable in structure of the piece body axial of shifting are difficult for wearing and tearing between declutch shift shaft and the piece body of shifting, long service life, convenient to use.

Drawings

Fig. 1 is a perspective view of the shift block and the shift fork shaft assembly.

FIG. 2 is a cross-sectional structural view of the shift block and declutch shift shaft assembly.

Fig. 3 is an enlarged schematic view of a portion a in fig. 2.

Fig. 4 is an enlarged schematic view of a portion B in fig. 2.

In the figure, 1, a shift block body; 2. a sleeve portion; 3. a gear shifting block; 4. a shift guide rod; 5. selecting a gear guide block; 6. a shift shaft; 7. a limiting block; 8. a lower bolt; 9. an elastic block; 10. a spacing pin; 11. a compression spring; 12. screwing a bolt; 13. a rubber sleeve; 14. a first inserting part; 15. a second inserting part; 16. an annular groove.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1, 2, 3 and 4, the shift block mainly comprises a shift block body 1, the shift block body 1 is provided with a sleeve portion 2, the outer wall of the sleeve portion 2 is provided with a shift groove, the shift groove is used for clamping and assembling a shift block 3 on a shift shaft arm, one end of the sleeve portion 2 is provided with a shift guide rod 4, the shift guide rod 4 is used for guiding and assembling a shift guide block 5, the sleeve portion 2 is used for axially assembling a shift shaft 6, and an axially assembled limit structure is arranged between the sleeve portion 2 and the shift shaft 6, and during actual manufacturing, the limit structure is specifically implemented as follows: the gear shifting mechanism mainly comprises a limiting block 7, wherein an annular limiting groove is formed in the outer wall of the gear shifting shaft 6, the limiting block 7 is elastically assembled on the inner wall of the sleeve part 2, and when the sleeve part 2 and the gear shifting shaft 6 are assembled, the limiting block 7 is elastically clamped in the annular limiting groove of the gear shifting shaft 6; specifically, the method comprises the following steps: the sleeve part 2 is provided with a through hole which is arranged in the radial direction, the limiting block 7 is matched in the through hole, the outer hole of the through hole is spirally connected with a lower bolt 8, an elastic block 9 is arranged between the lower bolt 8 and the limiting block 7, and the limiting block 7 and the lower bolt 8 are elastically abutted and matched through the elastic block 9; the limiting block 7 is cylindrical, the head of the limiting block 7 is hemispherical, and the head of the limiting block 7 is matched with the annular limiting groove of the gear shifting shaft 6.

During actual manufacturing, the sleeve part 2 is also provided with a radial assembly hole, the central line of the assembly hole is overlapped with the central line of the through hole, a limiting pin 10 and a compression spring 11 are matched in the assembly hole, an upper bolt 12 is spirally connected at the outer orifice of the assembly hole, the compression spring 11 is positioned between the limiting pin 10 and the upper bolt 12, and the limiting pin 10 extends out of the assembly hole and is clamped in an annular limiting groove of the shift shaft 6; specifically, the method comprises the following steps: the limiting pin 10 is cylindrical, the head of the limiting pin 10 is hemispherical, and the head of the limiting pin 10 is matched with the annular limiting groove of the gear shifting shaft 6; a rubber sleeve 13 is arranged between the limiting pin 10 and the upper bolt 12, the compression spring 11 is sleeved outside the rubber sleeve 13, the lower end of the upper bolt 12 is provided with a first insertion part 14 protruding downwards, the upper bolt 12 axially penetrates through the upper end of the rubber sleeve 13 through the first insertion part 14, the upper end of the limiting pin 10 is provided with a second insertion part 15 protruding upwards, and the limiting pin 10 axially penetrates through the lower end of the rubber sleeve 13 through the second insertion part 15; in practical application, annular grooves 16 are axially distributed on the outer wall of the rubber sleeve 13 at intervals and are arranged in an annular shape.

Those not described in detail in this specification are within the skill of the art. The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. A gear shifting block comprises a gear shifting block body (1), wherein a sleeve part (2) is arranged on the gear shifting block body (1), a gear shifting groove is formed in the outer wall of the sleeve part (2) and used for clamping and assembling a gear shifting block (3) on a gear shifting shaft arm, a gear shifting guide rod (4) is arranged at one end of the sleeve part (2), the gear shifting guide rod (4) is used for guiding and assembling a gear selecting guide block (5), and the sleeve part (2) is used for axially assembling a gear shifting shaft (6), and the gear shifting block is characterized in that an axially-assembled limiting structure is arranged between the sleeve part (2) and the gear shifting shaft (6) and comprises a limiting block (7), an annular limiting groove is formed in the outer wall of the gear shifting shaft (6), the limiting block (7) is elastically assembled on the inner wall of the sleeve part (2), and when the sleeve part (2) and the gear shifting shaft (6) are assembled, the limiting block (7) is elastically clamped in an annular limiting groove of the gear shifting shaft (6).

2. The shift block according to claim 1, wherein the sleeve portion (2) is provided with a through hole arranged in a radial direction, the limit block (7) is adapted to the through hole, a lower bolt (8) is spirally connected to an outer hole of the through hole, an elastic block (9) is arranged between the lower bolt (8) and the limit block (7), and the limit block (7) and the lower bolt (8) are elastically abutted and matched through the elastic block (9).

3. A shift block according to claim 2, characterized in that the stopper (7) is cylindrical, the head of the stopper (7) is hemispherical, and the head of the stopper (7) fits into the annular stopper groove of the shift shaft (6).

4. A shift block according to claim 3, characterized in that the sleeve part (2) has a radially arranged assembly hole, the center line of the assembly hole overlaps with the center line of the through hole, a limit pin (10) and a compression spring (11) are fitted in the assembly hole, an upper bolt (12) is screwed at the outer orifice of the assembly hole, the compression spring (11) is located between the limit pin (10) and the upper bolt (12), and the limit pin (10) extends out of the assembly hole and is clamped in the annular limit groove of the shift shaft (6).

5. A shift block according to claim 4, characterized in that the limit pin (10) is cylindrical, the head of the limit pin (10) is hemispherical, and the head of the limit pin (10) fits into the annular limit groove of the shift shaft (6).

6. The gear shift block according to claim 5, characterized in that a rubber sleeve (13) is arranged between the limit pin (10) and the upper bolt (12), the compression spring (11) is sleeved outside the rubber sleeve (13), a first insertion part (14) protruding downwards is arranged at the lower end of the upper bolt (12), the upper bolt (12) axially penetrates through the upper end of the rubber sleeve (13) through the first insertion part (14), a second insertion part (15) protruding upwards is arranged at the upper end of the limit pin (10), and the limit pin (10) axially penetrates through the lower end of the rubber sleeve (13) through the second insertion part (15).

7. A shift block according to claim 6, characterized in that the outer wall of the rubber sleeve (13) is provided with annular grooves (16) arranged in an annular manner at intervals in the axial direction.