CN214248233U

CN214248233U - Gear gasket

Info

Publication number: CN214248233U
Application number: CN202120022248.3U
Authority: CN
Inventors: 毛孙平
Original assignee: Zhejiang Weien Machinery Co ltd
Current assignee: Zhejiang Weien Machinery Co ltd
Priority date: 2021-01-06
Filing date: 2021-01-06
Publication date: 2021-09-21
Anticipated expiration: 2031-01-06

Abstract

The utility model provides a gear gasket belongs to gearbox accessory technical field. It has solved current gear gasket running wear and tear and has leaded to dish tooth and bearing to take place axial displacement, the poor problem of structural stability. This gear gasket includes annular body, this annular body is used for the jackshaft on, the embedded becket main part that is equipped with of annular body, this becket main part separates annular body axial into left ring layer, right ring layer, this left ring layer, right ring layer inner wall axial between them flushes, it leans on the piece to be provided with left elastic friction on the outer terminal surface on left ring layer, this left ring layer leans on piece and dish tooth buffering to lean on the cooperation through left elastic friction, it leans on the piece to be provided with right elastic friction on the outer terminal surface on right ring layer, this right ring layer leans on piece and bearing buffering to lean on the cooperation through right elastic friction. The utility model has the advantages of reasonable design, simply, when in-service use for stable in structure on the jackshaft between assembly fluted disc and the bearing, difficult rotational wear, long service life.

Description

Gear gasket

Technical Field

The utility model belongs to the technical field of the gearbox accessory, a gear spacer is related to.

Background

The gear shifting of the gearbox is realized by controlling the engagement and the disengagement of different gears of the gearbox through an operating mechanism so as to change the transmission ratio of power transmission. The gear shifting mode of the gearbox comprises meshing sleeve gear shifting and sliding gear shifting. The reverse gear is realized by the intervention of a reverse gear intermediate shaft gear, so that the direction of power transmission is changed by 180 degrees.

At present, generally carry out the axial through traditional gear washer between the dish tooth and the bearing on the reverse gear jackshaft that contain reverse gear jackshaft structure gearbox and separate, long-time operation, this gear washer is at reverse gear jackshaft relative circumferential direction easily, and gear washer running wear leads to dish tooth and bearing to take place axial displacement, and structural stability is poor, when dish tooth and bearing take place the axial interval and change, can lead to a dish tooth to move unstably on reverse gear jackshaft, and life is short.

Disclosure of Invention

The utility model aims at providing a simple structure, structural stability are high, long service life's gear gasket to the above-mentioned problem that exists among the prior art.

The purpose of the utility model can be realized by the following technical proposal: a gear shim comprising an annular body of rubber material for use on a countershaft having integrally formed shaft teeth thereon, the shaft teeth are positioned at one end of the intermediate shaft, the other end of the intermediate shaft is connected with disk teeth through splines, the intermediate shaft at the outer end of the disk teeth is also provided with a bearing, the annular body is positioned between the disk teeth and the bearing, it is characterized in that a metal ring main body is embedded in the annular body and axially divides the annular body into a left annular layer and a right annular layer, the inner walls of the left ring layer and the right ring layer are axially aligned, a left elastic friction abutting piece is arranged on the outer end surface of the left ring layer, this left ring layer leans on piece and dish tooth buffering to lean on the cooperation through left elastic friction, the outer terminal surface on right ring layer on be provided with right elastic friction and lean on the piece, this right ring layer leans on piece and bearing buffering to lean on the cooperation through right elastic friction.

This gear gasket is mainly at the embedded becket main part that is equipped with of annular body, increase the holistic mechanical strength of annular body through the becket main part, it supports to lean on the piece to be provided with left elastic friction on the outer terminal surface on left ring layer, it supports to support to lean on the piece to be provided with right elastic friction on the outer terminal surface on right ring layer, support to lean on the cooperation through left elastic friction piece dish tooth buffering, right elastic friction supports to support to lean on the piece and the bearing buffering to support to lean on the frictional force that supports that increases annular body to support to the cooperation, can prevent effectively that annular body from rotation on the jackshaft, structural stability is high, long service life.

In a foretell gear spacer, left side elastic friction support to lean on the piece including the interior rubber ring, the outer rubber ring of making through rubber materials an organic whole, the diameter of this interior rubber ring is less than the diameter of outer rubber ring, the outer terminal surface on left side ring layer have the interior annular that sets up with the centre of a circle on inlay and establish the groove, outer annular inlay and establish the groove, interior rubber ring inlay locate interior annular inlay and establish the groove, outer rubber ring inlay locate outer annular inlay and establish the groove in, this interior rubber ring, outer rubber ring all exceed the outer terminal surface on left side ring layer. The purpose of setting up like this is convenient for interior rubber ring, outer rubber ring and left annular layer to carry out the axial and connect the assembly, and it is convenient to manufacture.

In the above-mentioned gear gasket, the cross sections of the inner rubber ring and the outer rubber ring are rectangular, the edges of the outer ends of the inner rubber ring and the outer rubber ring are rounded, and the rounded corners of the inner rubber ring and the outer rubber ring are higher than the outer end surface of the left ring layer. Both parts of the inner rubber ring and the outer rubber ring and the disc teeth are abutted against deformation, the abutting friction force is large, and the structural stability is high.

In the above-mentioned gear spacer, the right elastic friction abutting member includes an inner ring and an outer ring integrally made of rubber material, the diameter of the inner ring is smaller than that of the outer ring, the outer end surface of the right ring layer has an inner ring groove and an outer ring groove which are concentrically arranged, the inner ring is embedded in the inner ring groove, the outer ring is embedded in the outer ring groove, and the inner ring and the outer ring are both higher than the outer end surface of the right ring layer. The purpose of setting up like this is to make things convenient for inner ring, outer loop and right ring layer to carry out the axial connection assembly, and it is convenient to produce manufacturing.

In the above-mentioned gear spacer, the cross sections of the inner ring and the outer ring are semicircular, and the partial semicircular surfaces of the inner ring and the outer ring are higher than the outer end surface of the right ring layer. The inner ring and the outer ring and the bearing are abutted to deform, the abutting friction force is large, and the structural stability is high.

In a foretell gear spacer, the inner wall of the becket main part between left side ring layer, the right ring layer on link firmly the inner circle through the mode of vulcanizing, the inner wall of inner circle exceeds the inner wall on left side ring layer, right ring layer, the both ends of the inner wall of inner circle all the chamfer angle handle, when annular body cover was established on the jackshaft, the inner wall of the inner circle of this annular body and the outer wall elasticity of jackshaft supported and leaned on the cooperation. The annular body is elastically abutted against the matching structure through the inner ring and the intermediate shaft to be stable.

Compared with the prior art, the gear gasket has the advantages that: structural design is reasonable, simple for during in-service use, stable in structure on the jackshaft between assembly fluted disc and the bearing, difficult rotational wear, long service life.

Drawings

Fig. 1 is a schematic sectional view of the present gear spacer.

Fig. 2 is an enlarged schematic view of a portion a in fig. 1.

Fig. 3 is a schematic cross-sectional structure view of the gear spacer assembly intermediate shaft.

In the figure, 1, an intermediate shaft; 2. shaft teeth; 3. disc teeth; 4. a bearing; 5. a metal ring body; 6. a left ring layer; 7. a right ring layer; 8. an inner rubber ring; 9. an outer rubber ring; 10. rounding off; 11. an inner ring; 12. an outer ring; 13. an inner ring; 14. and (4) chamfering.

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 and 3, the gear spacer mainly comprises an annular body made of rubber material, the annular body is used on an intermediate shaft 1, the intermediate shaft 1 is provided with an integrally formed shaft tooth 2, the shaft tooth 2 is positioned at one end of the intermediate shaft 1, the other end of the intermediate shaft 1 is connected with a disc tooth 3 through a spline, the intermediate shaft 1 at the outer end of the disc tooth 3 is also provided with a bearing 4, the annular body is positioned between the disc tooth 3 and the bearing 4, a metal ring main body 5 is embedded in the annular body, the metal ring main body 5 axially divides the annular body into a left ring layer 6 and a right ring layer 7, the inner walls of the left ring layer 6 and the right ring layer 7 are axially aligned, the outer end face of the left ring layer 6 is provided with a left elastic friction abutting piece, the left ring layer 6 is in buffer abutting fit with the disc tooth 3 through the left elastic friction abutting piece, the outer end face of the right ring layer 7 is provided with a right elastic friction abutting piece, the right ring layer 7 is in cushioned abutting engagement with the bearing 4 by a right resilient friction abutment.

In actual manufacturing, the left elastic friction abutting part mainly comprises an inner rubber ring 8 and an outer rubber ring 9 which are integrally manufactured by rubber materials, the diameter of the inner rubber ring 8 is smaller than that of the outer rubber ring 9, an inner ring 11-shaped embedding groove and an outer ring 12-shaped embedding groove which are concentrically arranged are arranged on the outer end face of the left ring layer 6, the inner rubber ring 8 is embedded in the inner ring 11-shaped embedding groove, the outer rubber ring 9 is embedded in the outer ring 12-shaped embedding groove, and the inner rubber ring 8 and the outer rubber ring 9 are both higher than the outer end face of the left ring layer 6; specifically, the method comprises the following steps: the cross sections of the inner rubber ring 8 and the outer rubber ring 9 are rectangular, the edges of the outer ends of the inner rubber ring 8 and the outer rubber ring 9 are rounded 10, and the partial rounded corners 10 of the inner rubber ring 8 and the outer rubber ring 9 are higher than the outer end face of the left ring layer 6.

In actual manufacturing, the right elastic friction abutting piece comprises an inner ring 11 and an outer ring 12 which are integrally manufactured by rubber materials, the diameter of the inner ring 11 is smaller than that of the outer ring 12, an inner ring groove and an outer ring groove which are concentrically arranged are formed in the outer end face of the right ring layer 7, the inner ring 11 is embedded in the inner ring groove, the outer ring 12 is embedded in the outer ring groove, and the inner ring 11 and the outer ring 12 are both higher than the outer end face of the right ring layer 7; specifically, the method comprises the following steps: the cross sections of the inner ring 11 and the outer ring 12 are semicircular, and partial semicircular surfaces of the inner ring 11 and the outer ring 12 are higher than the outer end surface of the right ring layer 7.

During actual manufacturing, the inner ring 13 is fixedly connected to the inner wall of the metal ring main body 5 between the left ring layer 6 and the right ring layer 7 in a vulcanization mode, the inner wall of the inner ring 13 is higher than the inner walls of the left ring layer 6 and the right ring layer 7, the two ends of the inner wall of the inner ring 13 are all subjected to right-angle chamfering 14 treatment, and when the annular body is sleeved on the intermediate shaft 1, the inner wall of the inner ring 13 of the annular body and the outer wall of the intermediate shaft 1 are elastically abutted to match.

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 gasket comprises an annular body made of rubber materials, the annular body is used on an intermediate shaft (1), the intermediate shaft (1) is provided with integrally formed shaft teeth (2), the shaft teeth (2) are positioned at one end of the intermediate shaft (1), the other end of the intermediate shaft (1) is connected with disc teeth (3) through splines, the intermediate shaft (1) at the outer end of the disc teeth (3) is further provided with a bearing (4), the annular body is positioned between the disc teeth (3) and the bearing (4), the gear gasket is characterized in that a metal ring main body (5) is embedded in the annular body, the metal ring main body (5) is axially divided into a left ring layer (6) and a right ring layer (7), the inner walls of the left ring layer (6) and the right ring layer (7) are axially aligned, and a left elastic friction abutting part is arranged on the outer end face of the left ring layer (6), this left side ring layer (6) lean on piece and dish tooth (3) buffering to lean on the cooperation through left elastic friction, the outer terminal surface of right ring layer (7) on be provided with right elastic friction and lean on the piece, this right ring layer (7) lean on piece and bearing (4) buffering to lean on the cooperation through right elastic friction.

2. The gear gasket according to claim 1, wherein the left elastic friction abutting piece comprises an inner rubber ring (8) and an outer rubber ring (9) which are integrally made of rubber materials, the diameter of the inner rubber ring (8) is smaller than that of the outer rubber ring (9), the outer end face of the left ring layer (6) is provided with an inner ring (11) shaped embedding groove and an outer ring (12) shaped embedding groove which are concentrically arranged, the inner rubber ring (8) is embedded in the inner ring (11) shaped embedding groove, the outer rubber ring (9) is embedded in the outer ring (12) shaped embedding groove, and the inner rubber ring (8) and the outer rubber ring (9) are both higher than the outer end face of the left ring layer (6).

3. A gear spacer according to claim 2, characterized in that the cross-section of both the inner rubber ring (8) and the outer rubber ring (9) is rectangular, the edges of the outer ends of both the inner rubber ring (8) and the outer rubber ring (9) are rounded (10), and the partial rounded corners (10) of both the inner rubber ring (8) and the outer rubber ring (9) are higher than the outer end surface of the left ring layer (6).

4. A gear spacer according to claim 3 wherein said right resilient friction abutment member comprises an inner ring (11) and an outer ring (12) made of rubber material integrally, the diameter of the inner ring (11) is smaller than the diameter of the outer ring (12), the outer end surface of said right ring layer (7) has concentrically arranged inner and outer annular grooves, said inner ring (11) is embedded in the inner annular groove, said outer ring (12) is embedded in the outer annular groove, and both the inner ring (11) and the outer ring (12) are higher than the outer end surface of the right ring layer (7).

5. A gear shim as claimed in claim 4, characterised in that the cross-section of both the inner ring (11) and the outer ring (12) is semi-circular in shape, and part of the semi-circular face of both the inner ring (11) and the outer ring (12) is higher than the outer end face of the right ring layer (7).

6. The gear gasket according to claim 5, characterized in that an inner ring (13) is fixedly connected to the inner wall of the metal ring main body (5) between the left ring layer (6) and the right ring layer (7) in a vulcanization manner, the inner wall of the inner ring (13) is higher than the inner walls of the left ring layer (6) and the right ring layer (7), both ends of the inner wall of the inner ring (13) are processed by chamfering (14), and when the ring body is sleeved on the intermediate shaft (1), the inner wall of the inner ring (13) of the ring body is elastically abutted and matched with the outer wall of the intermediate shaft (1).