CN216477597U

CN216477597U - Wear-resisting piston body of forging

Info

Publication number: CN216477597U
Application number: CN202122963247.1U
Authority: CN
Inventors: 闫靖昆; 杨晓龙; 高殿付; 张野
Original assignee: Shenyang Junsheng Machinery Manufacturing Co ltd
Current assignee: Shenyang Junsheng Machinery Manufacturing Co ltd
Priority date: 2021-11-29
Filing date: 2021-11-29
Publication date: 2022-05-10
Anticipated expiration: 2031-11-29

Abstract

The utility model discloses a wear-resistant piston body of a forging, which comprises a piston body, wherein the side wall of the piston body is symmetrically and fixedly connected with an inner thread block, the inner cavity of the inner thread block is in threaded connection with an outer thread block, and the outer wall of the piston body is provided with a piston ring. The outer thread block and the inner thread block are connected in a threaded manner by rotating, the piston ring is provided with a metal elastic ring which is expanded and deformed outwards greatly, gas in a combustion chamber is prevented from leaking to a crankcase, the leakage amount of the gas is controlled to be minimum, the heat efficiency is improved, meanwhile, the outer thread block and the inner thread block are made of wear-resistant steel, the integral wear resistance is improved, when the wear-resistant steel works, if strong impact, pressure and friction are applied, strong work hardening can be generated on the surface due to plastic deformation, the surface hardness is improved to 500-550 HBS, high wear resistance is obtained, the core still keeps high plasticity and toughness of the original austenite, and meanwhile, split arrangement is adopted, and the piston ring is simpler and more convenient to process.

Description

Wear-resisting piston body of forging

Technical Field

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

Background

The piston body is a part which does reciprocating motion in an automobile engine cylinder body, the top of the piston is a main part forming a combustion chamber, the shape of the piston is related to the selected combustion chamber form, the main function is to bear the combustion pressure in the cylinder and transmit the force to a crankshaft through a piston pin and a connecting rod, along with the fact that the requirements of the whole automobile on the dynamic property, the economical efficiency, the environmental protection property and the reliability of the engine are stricter and stricter, the forged piston body is dense in metal, the defects of air gaps and the like in the inner part can not occur, but the whole wear resistance is poor, and the processing is inconvenient, so that the forged wear-resistant piston body is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a wear-resistant piston body of a forging, which solves the problems in the prior art.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a wear-resisting piston body of forging, includes the piston body, the lateral wall symmetry fixedly connected with internal thread piece of piston body, the inner chamber threaded connection of internal thread piece has the external thread piece, the piston ring has been seted up to the outer wall of piston body.

Preferably, the inner cavity of the external thread block is glued with a rubber layer.

Preferably, the bottom of the piston body is provided with a groove.

Preferably, the number of the piston rings is three.

Compared with the prior art, the utility model has the beneficial effects that: the outer thread block and the inner thread block are connected in a threaded manner by rotating, the piston ring is provided with a metal elastic ring which is expanded and deformed outwards greatly, gas in a combustion chamber is prevented from leaking to a crankcase, the leakage amount of the gas is controlled to be minimum, the heat efficiency is improved, meanwhile, the outer thread block and the inner thread block are made of wear-resistant steel, the integral wear resistance is improved, when the wear-resistant steel works, if strong impact, pressure and friction are applied, strong work hardening can be generated on the surface due to plastic deformation, the surface hardness is improved to 500-550 HBS, high wear resistance is obtained, the core still keeps high plasticity and toughness of the original austenite, and meanwhile, split arrangement is adopted, and the piston ring is simpler and more convenient to process.

Drawings

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

FIG. 2 is a detailed view of the structure of the external thread block of FIG. 1;

FIG. 3 is a perspective view of the external thread block of FIG. 1;

FIG. 4 is a perspective view of the female thread block of FIG. 1;

FIG. 5 is a perspective view of the external thread block of FIG. 3;

FIG. 6 is a perspective view of the female thread block of FIG. 4;

in the figure: 1. a piston body; 2. an internal thread block; 3. an external thread block; 4. a piston ring; 5. a rubber layer; 6. and (4) a groove.

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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-6, the utility model provides a wear-resistant piston body for a forging, which comprises a piston body 1, wherein the side wall of the piston body 1 is symmetrically and fixedly connected with an inner thread block 2, the inner cavity of the inner thread block 2 is in threaded connection with an outer thread block 3, the outer wall of the piston body 1 is provided with a piston ring 4, the inner thread block 2 is arranged in the piston body 1, the inner cavity of the inner thread block 2 is provided with threads, the outer thread block 3 is attached to the inner thread block 2, the outer thread block 3 is in threaded connection with the inner thread block 2 through rotation, the piston ring 4 is provided with a metal elastic ring which is expanded and deformed outwards greatly, gas in a combustion chamber is prevented from leaking to a crankcase, the leakage amount of the gas is controlled to the minimum, the heat efficiency is improved, meanwhile, the outer thread block 3 and the inner thread block 2 are made of wear-resistant steel, the overall wear resistance is improved, and the split arrangement is simpler and more convenient in processing.

The rubber layer 5 is glued to the inner cavity of the external thread block 3, and before the piston body 1 is installed, the rubber layer 5 can protect the external thread block 3, so that the external thread block 3 is prevented from being worn before being installed, and the external thread block 3 can be fully protected.

The bottom of the piston body 1 is provided with the groove 6, and the connecting rod is prevented from contacting the piston body 1 during working through the arrangement of the groove 6, so that the normal working of the connecting rod is prevented from being influenced.

The number of piston rings 4 is three.

The working principle is as follows: when using, the inside internal thread piece 2 that is provided with of piston body 1, the 2 inner chambers of internal thread piece are provided with the screw thread, laminate external screw thread piece 3 with internal thread piece 2, make external

screw thread piece

3 and 2 threaded connection of internal thread piece through rotating, piston ring 4 has the metal elastic ring of great outside expansion deformation, do not let the gas of combustion chamber leak the crankcase, gaseous leakage quantity control is at the minimums, the thermal efficiency is improved, external screw thread piece 3 and internal thread piece 2 are wear-resisting steel material simultaneously, improve holistic wearability, adopt the components of a whole that can function independently to set up simultaneously, it is more simple and convenient when adding man-hour.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments 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. The utility model provides a forging wear-resisting piston body which characterized in that: the piston comprises a piston body (1), wherein an inner thread block (2) is symmetrically and fixedly connected to the side wall of the piston body (1), an outer thread block (3) is connected to the inner cavity of the inner thread block (2) in a threaded manner, and a piston ring (4) is arranged on the outer wall of the piston body (1).

2. The forging wear resistant piston body of claim 1, wherein: the inner cavity of the external thread block (3) is glued with a rubber layer (5).

3. The forging wear resistant piston body of claim 1, wherein: the bottom of the piston body (1) is provided with a groove (6).

4. The forging wear resistant piston body of claim 1, wherein: the number of the piston rings (4) is three.