CN219012743U

CN219012743U - Wear-resistant piston

Info

Publication number: CN219012743U
Application number: CN202320095042.2U
Authority: CN
Inventors: 陈晓辉
Original assignee: Yaen Tianjin Machinery Equipment Co ltd
Current assignee: Yaen Tianjin Machinery Equipment Co ltd
Priority date: 2023-02-01
Filing date: 2023-02-01
Publication date: 2023-05-12
Anticipated expiration: 2033-02-01

Abstract

The utility model discloses an abrasion-resistant piston, which comprises a piston pin body, wherein a plurality of equally-distributed piston ring grooves are arranged at the upper end of the piston pin body, a plurality of groups of fixing grooves which are distributed in a matrix are arranged below the piston ring grooves, two groups of fixing grooves are arranged, balls are arranged in the fixing grooves, two groups of fixing grooves are fixedly connected through an oil guide channel, and pin holes are formed in two sides of the lower end of the piston pin body. The wear-resistant piston is simple in structure and convenient to operate, and can replace sliding in a rolling mode, so that friction between the piston pin body and the inner wall of the piston cylinder is effectively reduced, and the service life of the piston is prolonged.

Description

Wear-resistant piston

Technical Field

The utility model relates to the technical field of pistons, in particular to a wear-resistant piston.

Background

Pistons are the reciprocating parts in the cylinder block of an automobile engine. The basic structure of the piston can be divided into a top, a head and a skirt. The piston crown is the main part that constitutes the combustion chamber, the shape of which is dependent on the combustion chamber form selected. The gasoline engine mostly adopts flat top pistons, and has the advantage of small heat absorption area. The piston crown of a diesel engine often has a variety of pockets that must be shaped, positioned and sized to accommodate the combustion requirements of the mixture formation and combustion of the diesel engine. The existing piston is low in wear resistance, easy to wear in use, short in service life and needs to be replaced frequently. To this end we propose a wear resistant piston.

Disclosure of Invention

The present utility model is directed to a wear resistant piston that solves the above-mentioned problems with the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides an wearability piston, includes the piston pin body, piston pin body upper end is equipped with the piston ring groove that a plurality of equidistance was arranged, piston ring groove below is equipped with the fixed slot that multiunit matrix was arranged, every group the fixed slot is equipped with two, be equipped with the ball in the fixed slot, every group is two pass through oil guide passageway fixed connection between the fixed slot, piston pin body lower extreme both sides all are equipped with the pinhole.

Preferably, the piston pin body is provided with a heat dissipation groove at the lower end of the pin hole, and a plurality of heat dissipation holes distributed in a matrix are arranged at the inner side of the heat dissipation groove.

Preferably, an air groove is formed in the middle of the upper end of the piston pin body.

Preferably, the outer edge surface of the lower end of the piston pin body is provided with a wear-resistant layer.

Compared with the prior art, the utility model has the beneficial effects that: the piston pin body moves in the piston cylinder in a rolling way through the balls, friction between the piston pin body and the inner wall of the piston cylinder is effectively reduced relative to a sliding way, and lubricating oil in the guide channel can lubricate the surfaces of the balls, so that friction between the piston pin body and the inner wall of the piston cylinder is further reduced. The wear-resistant piston is simple in structure and convenient to operate, and can replace sliding in a rolling mode, so that friction between the piston pin body and the inner wall of the piston cylinder is effectively reduced, and the service life of the piston is prolonged.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a cross-sectional view of the present utility model;

in the figure: the piston pin comprises a piston pin body 1, a piston ring groove 2, a fixing groove 3, a ball 4, an oil guide channel 5, a pin hole 6, a heat dissipation groove 7, a heat dissipation hole 8 and an air groove 9.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-2, the present utility model provides a technical solution: the utility model provides an wearability piston, includes piston pin body 1, piston pin body 1 upper end is equipped with the annular 2 of a plurality of equidistance that arrange, annular 2 below is equipped with the fixed slot 3 that multiunit matrix was arranged, every group fixed slot 3 is equipped with two, be equipped with ball 4 in the fixed slot 3, ball 4 can roll in fixed slot 3 inside, when piston pin body 1 moves in the inside of a piston tube, piston pin body 1 moves in the inside of a piston tube through the rolling mode of ball 4, for sliding mode, the effectual friction that has reduced between piston pin body 1 and the piston tube inner wall, every group is two through oil guide passageway 5 fixed connection between the fixed slot 3, oil guide passageway 5 inside can store lubricating oil, simultaneously when piston pin body 1 moves, the inside lubricating oil of oil guide passageway 5 can lubricate ball 4 surface to further reduce the friction between piston pin body 1 and the piston tube inner wall, piston pin body 1 lower extreme both sides all are equipped with pinhole 6, can carry out fixed mounting to the piston push rod through pinhole 6.

The piston pin body 1 is located pinhole 6 lower extreme and is equipped with heat dissipation groove 7, the heat dissipation groove 7 inboard is equipped with a plurality of matrix arrangement's louvres 8, and the setting of heat dissipation groove 7 and louvre 8 has effectually increased the heat dispersion of piston pin body 1 to improve the life of piston.

The middle part of the upper end of the piston pin body 1 is provided with the air groove 9, and the arrangement of the air groove 9 ensures that certain air pressure exists between the piston pin body 1 and the piston cylinder when the piston pin body 1 is close to the piston cylinder end cover, so that the piston pin body 1 is prevented from directly striking on the piston cylinder, and the service life of the piston pin body 1 is effectively prolonged.

The outer side of the lower end of the piston pin body 1 is provided with a wear-resistant layer, the wear-resistant layer is made of aluminum oxide, carbon fibers are added into the coating, and meanwhile, a magnetic field is added during solidification, so that the magnetic carbon fibers tend to the surface of the coating, and the wear resistance is increased.

Specifically, in the utility model, the balls 4 can roll in the fixed groove 3, when the piston pin body 1 moves in the piston cylinder, the piston pin body 1 moves in the piston cylinder in a rolling way through the balls 4, and compared with a sliding way, the friction between the piston pin body 1 and the inner wall of the piston cylinder is effectively reduced, the lubricating oil can be stored in the oil guide channel 5, and meanwhile, when the piston pin body 1 moves, the lubricating oil in the oil guide channel 5 can lubricate the surface of the balls 4, so that the friction between the piston pin body 1 and the inner wall of the piston cylinder is further reduced.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein 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. Wear-resistant piston, comprising a piston pin body (1), characterized in that: the piston pin comprises a piston pin body (1), and is characterized in that a plurality of equally spaced piston ring grooves (2) are arranged at the upper end of the piston pin body (1), a plurality of groups of fixing grooves (3) which are arranged in a matrix are arranged below the piston ring grooves (2), two groups of fixing grooves (3) are arranged, balls (4) are arranged in the fixing grooves (3), two groups of fixing grooves (3) are fixedly connected through an oil guide channel (5), and pin holes (6) are formed in two sides of the lower end of the piston pin body (1).

2. A wear resistant piston in accordance with claim 1 wherein: the piston pin is characterized in that the piston pin body (1) is located at the lower end of the pin hole (6) and is provided with a heat dissipation groove (7), and a plurality of heat dissipation holes (8) which are distributed in a matrix are formed in the inner side of the heat dissipation groove (7).

3. A wear resistant piston in accordance with claim 1 wherein: the middle part of the upper end of the piston pin body (1) is provided with an air groove (9).

4. A wear resistant piston in accordance with claim 1 wherein: the outer edge surface of the lower end of the piston pin body (1) is provided with a wear-resistant layer.