CN214887438U

CN214887438U - Impact damage resistant automobile starter isolator

Info

Publication number: CN214887438U
Application number: CN202120796999.0U
Authority: CN
Inventors: 任磊; 李金江
Original assignee: Wuxi Shunfeng Start Gear Co ltd
Current assignee: Wuxi Shunfeng Start Gear Co ltd
Priority date: 2021-04-19
Filing date: 2021-04-19
Publication date: 2021-11-26
Anticipated expiration: 2031-04-19

Abstract

The utility model discloses an impact damage resistant automobile starter isolator, which comprises a driving gear of the isolator, wherein the surface of the driving gear is coated with a wear-resistant coating; the front end of the tooth of the driving gear is of a contracted structure, the contracted structure is connected with the boundary of the tooth where the contracted structure is located by adopting an inner side smooth radian structure, and edges on two sides of the front end of the contracted structure are symmetrical front end smooth radian structures. The utility model provides a pair of shock-resistant car starter isolator that destroys improves the impact resistance of isolator greatly, and simple structure practices thrift the cost.

Description

Impact damage resistant automobile starter isolator

Technical Field

The utility model belongs to the technical field of the isolator, especially, relate to an impact-resistant destroys automobile starter isolator.

Background

In the automobile starter isolator, the driving gear is easy to collide in the meshing process with the flywheel, particularly under the condition that the staggering range of the teeth is large, the meshing difficulty and the collision probability are high, and the impact on the driving gear in the meshing and colliding processes generates abrasion damage and directly influences the service life of the whole isolator, so that the meshing convenience of the driving gear is improved, and the abrasion-resistant structural strength of the driving gear is enhanced. Based on the above reason, the utility model provides a resistant impact damage automobile starter isolator can improve the impact resistance of isolator greatly, and simple structure practices thrift the cost moreover.

Disclosure of Invention

The purpose of the invention is as follows: in order to overcome exist not enough among the prior art, the utility model provides a shock-resistant car starter isolator that destroys improves the impact resistance of isolator greatly, simple structure practices thrift the cost.

The technical scheme is as follows: in order to achieve the purpose, the impact damage resistant automobile starter isolator comprises a driving gear of the isolator, wherein the surface of the driving gear is coated with a wear-resistant coating;

the front end of the tooth of the driving gear is of a contracted structure, the contracted structure is connected with the boundary of the tooth where the contracted structure is located by adopting an inner side smooth radian structure, and edges on two sides of the front end of the contracted structure are symmetrical front end smooth radian structures.

Further, the wear-resistant coating is distributed on the surface of all the teeth of the driving gear.

Further, the raw material for forming the wear-resistant coating is wear-resistant ceramic paint.

Further, the contraction-shaped structure is formed by machining two side edges of the front end of the cutting tooth.

Further, the dimension of the contracted structure in the length direction of the tooth where the contracted structure is located is b, the overall length dimension of the tooth in the length direction is a, and a and b satisfy the following relation: and 6b is less than 8 b.

Further, the inner side smooth radian structure and the front end smooth radian structure are formed by machining round corners.

Further, the radius of the fillet radian of the inner smooth radian structure is R, the radius of the fillet radian of the front end smooth radian structure is R, and R and R satisfy the relationship: r > R.

Further, R is 3mm, and R is 0.5 mm.

Has the advantages that: the utility model discloses a shock-resistant destruction automobile starter isolator, beneficial effect is: the utility model discloses a to drive gear surface coating wear-resistant coating and shrink the transformation to the front end of drive gear tooth, greatly reduced tooth wearing and tearing and tooth meshing striking wearing and tearing to promote drive gear's shock resistance, further improve the shock resistance of isolator on the whole.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic structural view of a driving gear of the isolator.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

As shown in the attached drawing 1, the impact damage resistant automobile starter isolator comprises a driving gear 2 of the isolator 1, wherein a wear-resistant coating is coated on the surface of the driving gear 2, so that the impact wear resistance of the driving gear 2 can be greatly improved.

As shown in fig. 2, the front end of the tooth 21 of the driving gear 2 is a contracted structure 211, the contracted structure 211 is connected with the boundary of the tooth 21 where the contracted structure 211 is located by an inner side smooth arc structure 212, and two side edges of the front end of the contracted structure 211 are symmetrical front end smooth arc structures 213. The front end of the gear of the driving gear 2 is shrunk and transformed, so that the meshing convenience of the driving gear and the flywheel can be greatly improved, the meshing impact probability is reduced, and the driving gear 2 is prevented from being damaged by impact.

More specifically, the wear-resistant coating is specifically distributed on the surfaces of all the teeth 21 of the driving gear 2, so that the material cost is saved while impact wear resistance is ensured.

In the present invention, as a preferable example, the raw material used for forming the wear-resistant coating layer is a wear-resistant ceramic paint.

More specifically, the constriction 211 is formed by two side edges of the front end of the machined cutting tooth 21. The dimension of the contracted structure 211 in the length direction of the tooth 21 where the contracted structure is located is b, the overall length dimension of the tooth 21 in the length direction is a, and a and b satisfy the following relation: and 6b is less than 8 b. The constricting structures 211 occupy only a relatively small portion of the teeth 21 and do not affect the structural strength of the entire tooth 21.

More specifically, the inner smooth arc structure 212 and the front smooth arc structure 213 are formed by machining and rounding. Wherein, the radius of the fillet radian of the inner smooth radian structure 212 is R, the radius of the fillet radian of the front end smooth radian structure 213 is R, and R satisfy the relationship: r > R. The transition range of the inner smooth arc structure 212 is larger than that of the front smooth arc structure 213, and the ease of engagement is improved.

In the present invention, as an optimization, R is 3mm, and R is 0.5 mm.

The above description is only a preferred embodiment of the present invention, and it should be noted that: for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be considered as the protection scope of the present invention.

Claims

1. The utility model provides a resistant impact damage car starter isolator which characterized in that: the driving gear (2) comprises a one-way clutch (1), and the surface of the driving gear (2) is coated with a wear-resistant coating;

the front end of the tooth (21) of the driving gear (2) is a contraction-shaped structure (211), the contraction-shaped structure (211) is connected with the boundary of the tooth (21) where the contraction-shaped structure (211) is located through an inner side smooth arc structure (212), and edges of two sides of the front end of the contraction-shaped structure (211) are symmetrical front end smooth arc structures (213).

2. The impact damage resistant automotive starter isolator as claimed in claim 1, wherein: the wear-resistant coating is distributed on the surfaces of all teeth (21) of the driving gear (2).

3. The impact damage resistant automotive starter isolator as claimed in claim 2, wherein: the raw materials for forming the wear-resistant coating are wear-resistant ceramic paint.

4. The impact damage resistant automotive starter isolator as claimed in claim 1, wherein: the contraction-shaped structure (211) is formed by two side edges of the front end of the machining cutting tooth (21).

5. The impact damage resistant automotive starter isolator as claimed in claim 1, wherein: the dimension of the contracted structure (211) in the length direction of the tooth (21) where the contracted structure is located is b, the overall length dimension of the tooth (21) in the length direction is a, and a and b satisfy the following relations: and 6b is less than 8 b.

6. The impact damage resistant automotive starter isolator as claimed in claim 1, wherein: the inner side smooth arc structure (212) and the front end smooth arc structure (213) are formed by machining and fillet processing.

7. The impact damage resistant automotive starter isolator as claimed in claim 6, wherein: the radius of the fillet radian of the inner side smooth radian structure (212) is R, the radius of the fillet radian of the front end smooth radian structure (213) is R, and R and R satisfy the relation: r > R.

8. The impact damage resistant automotive starter isolator as claimed in claim 7, wherein: r is 3mm, and R is 0.5 mm.