CN215673135U

CN215673135U - Cold heading forming wear-resistant sliding block shaft

Info

Publication number: CN215673135U
Application number: CN202121662837.4U
Authority: CN
Inventors: 向忠冬; 陈阵; 义雅峰; 黄多新
Original assignee: Essence Fastening System Shanghai Co ltd
Current assignee: Essence Fastening System Shanghai Co ltd
Priority date: 2021-07-21
Filing date: 2021-07-21
Publication date: 2022-01-28
Anticipated expiration: 2031-07-21

Abstract

The utility model discloses a cold heading formed wear-resistant slide block shaft, relates to the technical field of transmission parts for fuel internal combustion engines, and aims to solve the problem that in the current market, the whole crankshaft of the fuel internal combustion engine is generally subjected to heat treatment to certain hardness, and then high-frequency quenching is carried out on parts with high local requirements, and when local abrasion or other quality problems occur, the whole part is directly scrapped and treated, so that great waste is caused. The upper end of wear-resisting slider axle is provided with the slider head body, the intermediate position department of slider head body lower extreme is provided with annular knurl cooperation axis body, the below of annular knurl cooperation axis body is provided with the guide end, the intermediate position department of slider head body upper end is provided with the slide working circular arc platform, the equal symmetry in both sides of slider head body upper end is provided with the circular arc boss, and the circular arc boss is located the both sides of slide working circular arc bench top, the up end of slide working circular arc platform is middle bellied circular-arc that makes progress.

Description

Cold heading forming wear-resistant sliding block shaft

Technical Field

The utility model relates to the technical field of transmission parts for fuel internal combustion engines, in particular to a cold heading formed wear-resistant sliding block shaft.

Background

It is known that when a crankshaft of a fuel internal combustion engine, an engineering mechanical transmission swinging wall, a cam, a chain and other transmission mechanisms transmit, a certain load is generated among parts, a wear-resistant slide block shaft is attached to the cam, and a connecting piece for opening and closing transmission of an air valve is realized by driving the cam to stretch up and down, so that the key contact curved surface of the wear-resistant slide block shaft has special requirements of high hardness and wear resistance locally.

At present, the whole crankshaft of the fuel internal combustion engine is generally subjected to heat treatment to certain hardness in the market, and then high-frequency quenching is carried out on parts with high local requirements, when local abrasion or other quality problems occur, the whole part is directly scrapped and treated, and great waste is caused, so that a cold heading forming wear-resistant slide block shaft is provided, and the problems are solved.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a cold heading forming wear-resistant slide block shaft, which aims to solve the problem that the whole part is directly scrapped and treated to cause great waste when local abrasion or other quality problems occur because the whole crankshaft of a fuel internal combustion engine is generally subjected to heat treatment to certain hardness and then the part with high local requirement is subjected to high-frequency quenching in the market at present.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a wear-resisting slider axle of cold-heading shaping, includes the wear-resisting slider axle, the upper end of wear-resisting slider axle is provided with the slider head body, the intermediate position department of slider head body lower extreme is provided with annular knurl cooperation axis body, the below of annular knurl cooperation axis body is provided with the direction end, the intermediate position department of slider head body upper end is provided with the slip work circular arc platform, the equal symmetry in both sides of slider head body upper end is provided with the circular arc boss, and the circular arc boss is located the both sides of slip work circular arc bench top, the up end of slip work circular arc platform is middle bellied circular-arc that makes progress.

Preferably, the lower terminal surface of the slider head body is provided with a shaft body bearing surface, the bilateral symmetry of shaft body bearing surface is provided with anti-skidding ruled teeth, and anti-skidding ruled teeth equidistance is provided with a plurality ofly.

Preferably, the guide end is a cylinder, and the annular outer surface of the knurled matching shaft body is provided with anti-skid grains.

Preferably, the middle position of the upper end face of the arc boss is in an arc shape with the middle protruding upwards, and two sides of the upper end face of the arc boss are inclined planes inclined towards the direction of the sliding working arc table.

Preferably, the slider body is in a square or rectangular structure.

Preferably, the material of the wear-resistant slide block shaft is any one of heat-resistant steel, carburizing steel and austenitic stainless steel.

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

1. according to the utility model, the small-volume cold heading wear-resistant slide block shaft body is separated from the crankshaft of the fuel internal combustion engine, and the small-volume cold heading wear-resistant slide block shaft body is arranged at the transmission wear-resistant part of the large transmission mechanism part through press riveting or interference fit, so that the original design function is maintained, the heat treatment process of the large transmission mechanism part is reduced, the carbon emission is reduced, and the problem that the whole crankshaft of the fuel internal combustion engine is subjected to heat treatment to certain hardness and then high-frequency quenching is carried out on the part with high local requirement in the current market is solved, and when local wear or other quality problems occur, the whole part is directly scrapped and treated, so that great waste is caused is solved.

2. According to the utility model, the arc-shaped sliding working arc table is provided, and the arc bosses are arranged on two sides of the sliding working arc table, so that the transmission of the cam can be limited, and the cam transmission shaft is effectively prevented from breaking and moving out of the arc bosses during transmission to damage other components.

3. The anti-skid thread is arranged on the shaft body through the knurling fit, so that the connection with the transmission wear-resistant part of the large transmission mechanism component is more stable during pressure riveting or interference fit installation.

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 front view of the present invention;

FIG. 4 is a side view of the present invention;

fig. 5 is a sectional view taken along the line a-a of fig. 4 according to the present invention.

In the figure: 1. a slider head body; 11. sliding the working arc table; 12. a circular arc boss; 13. a shaft body bearing surface; 14. anti-skid straight-line teeth; 2. a guide end; 3. the knurl is matched with the shaft body; 31. anti-skid lines; 4. a wear-resistant slide block shaft.

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.

Referring to fig. 1-5, an embodiment of the present invention is shown: the utility model provides a wear-resisting slider axle of cold-heading shaping, including wear-resisting slider axle 4, the upper end of wear-resisting slider axle 4 is provided with slider head body 1, the intermediate position department of slider head body 1 lower extreme is provided with annular knurl cooperation axis body 3, the below of annular knurl cooperation axis body 3 is provided with leading end 2, the intermediate position department of slider head body 1 upper end is provided with slide work arc platform 11, the equal symmetry in both sides of slider head body 1 upper end is provided with circular arc boss 12, and circular arc boss 12 is located the both sides of slide work arc platform 11 top, the up end of slide work arc platform 11 is middle bellied circular-arc upwards.

Further, a shaft body bearing surface 13 is arranged on the lower end surface of the slider body 1, anti-skid straight-thread teeth 14 are symmetrically arranged on two sides of the shaft body bearing surface 13, and the anti-skid straight-thread teeth 14 are arranged in a plurality at equal intervals.

Further, leading end 2 is the cylinder, and the surface ring shape of annular knurl cooperation axis body 3 is provided with anti-skidding line 31.

Further, the middle position of the upper end surface of the arc boss 12 is in the shape of an arc with the middle protruding upwards, and both sides of the upper end surface of the arc boss 12 are inclined surfaces inclined towards the direction of the sliding working arc table 11.

Further, the slider body 1 has a square or rectangular structure.

Further, the material of the wear-resistant slide block shaft 4 is any one of heat-resistant steel, carburizing steel and austenitic stainless steel.

The working principle is as follows: install wear-resisting slider axle 4 at large-scale drive mechanism part transmission wear-resisting position through pressure riveting or interference fit during the use, anti-skidding line 31 through 3 surfaces of annular knurl cooperation axis body can effectively improve the direct frictional force with the contact surface, thereby improve the stability of connecting, the circular arc boss 12 of slide work circular arc platform 11 both sides can the effectual slip position of restriction cam, thereby effectively prevent cam drive shaft fracture to shifting out between the circular arc boss when the transmission from appearing, cause the damage to other members, thereby improve equipment's life, through separating wear-resisting slider axle 4 and whole fuel internal-combustion engine crankshaft mechanical energy, can be pertinence only change wear-resisting slider axle 4 part during the change, thereby reduce the replacement cost.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a cold-heading shaping wear-resisting slider axle, includes wear-resisting slider axle (4), its characterized in that: the upper end of wear-resisting slider axle (4) is provided with slider head body (1), the intermediate position department of slider head body (1) lower extreme is provided with annular knurl cooperation axis body (3), the below of annular knurl cooperation axis body (3) is provided with direction end (2), the intermediate position department of slider head body (1) upper end is provided with slip work circular arc platform (11), the equal symmetry in both sides of slider head body (1) upper end is provided with circular arc boss (12), and circular arc boss (12) are located the both sides of slip work circular arc platform (11) top, the up end of slip work circular arc platform (11) is middle bellied circular-arc upwards.

2. The cold-heading wear resistant slipper shaft of claim 1, wherein: the lower terminal surface of slider head body (1) is provided with axis body supporting surface (13), the bilateral symmetry of axis body supporting surface (13) is provided with anti-skidding straight thread tooth (14), and anti-skidding straight thread tooth (14) equidistance is provided with a plurality ofly.

3. The cold-heading wear resistant slipper shaft of claim 1, wherein: the guide end (2) is a cylinder, and the annular outer surface of the knurled matching shaft body (3) is provided with anti-skid grains (31).

4. The cold-heading wear resistant slipper shaft of claim 1, wherein: the middle position of the upper end face of the arc boss (12) is arc-shaped with the middle protruding upwards, and two sides of the upper end face of the arc boss (12) are inclined planes inclined towards the direction of the sliding working arc table (11).

5. The cold-heading wear resistant slipper shaft of claim 1, wherein: the slider head body (1) is of a square or rectangular structure.

6. The cold-heading wear resistant slipper shaft of claim 1, wherein: the wear-resistant sliding block shaft (4) is made of any one of heat-resistant steel, carburizing steel and austenitic stainless steel.