CN210003402U

CN210003402U - high-temperature deformation resistant split piston

Info

Publication number: CN210003402U
Application number: CN201920606752.0U
Authority: CN
Inventors: 王艳利; 李世清; 李新
Original assignee: JIANGSU BAIAN TECHNOLOGY Co Ltd
Current assignee: JIANGSU BAIAN TECHNOLOGY Co Ltd
Priority date: 2019-04-29
Filing date: 2019-04-29
Publication date: 2020-01-31
Anticipated expiration: 2029-04-29

Abstract

The utility model discloses a high temperature deformation resistant components of a whole that can function independently piston, it includes piston base member, the ring body and the round pin axle of preventing expanding, piston base member bottom indent is provided with the ring channel, the ring body that prevents expanding sets up in the ring channel, piston base member excircle bottom bilateral symmetry is provided with the round pin axle mounting hole that runs through the ring channel, round pin axle level sets up in the piston base member and both ends extend to respectively in the round pin axle mounting hole that corresponds, the both ends of round pin axle radially run through the ring body that prevents expanding respectively, realize preventing the axial spacing of the ring body that expands, high temperature deformation resistant components of a whole that can function independently piston, the dismantlement of the ring body that prevents expanding just can be carried out after the round pin axle is taken off, make things convenient for the components of a whole that can function independently to retrieve, prevent expanding bottom of the ring body and adopt open structure, can dispel the heat with lubricating oil contact when the.

Description

high-temperature deformation resistant split piston

Technical Field

The utility model relates to a piston technical field especially relates to high temperature resistant components of a whole that can function independently pistons that warp.

Background

The automobile piston is better than the center part of an automobile engine and is used for bearing gas pressure, a connecting rod is driven by a piston pin to drive a crankshaft to rotate, and the top of the piston is also a component of a combustion chamber, so that the automobile piston occupies an extremely important position when the engine runs.

The aluminum alloy piston is light in weight and beneficial to reducing the energy consumption of an engine, but the aluminum alloy piston is high in thermal expansion coefficient, easy to expand and wear at high temperature, and capable of prolonging the service life of the engine.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide high temperature resistant components of a whole that can function independently pistons that warp promote high temperature resistant deformation's effect and the convenience that the components of a whole that can function independently was retrieved.

To achieve the purpose, the utility model adopts the following technical proposal:

high-temperature deformation resistant split pistons comprise a piston base body, an anti-expansion ring body and a pin shaft, wherein the bottom of the piston base body is concavely provided with an annular groove, the anti-expansion ring body is arranged in the annular groove, pin shaft mounting holes penetrating through the annular groove are symmetrically formed in two sides of the bottom of the excircle of the piston base body, the pin shaft is horizontally arranged in the piston base body, two ends of the pin shaft respectively extend into the corresponding pin shaft mounting holes, and two ends of the pin shaft respectively radially penetrate through the anti-expansion ring body to realize axial limiting of the anti-expansion ring body.

The piston base body is an aluminum alloy piston, and the expansion-proof ring body is a steel ring.

Wherein, the upper portion of piston base member excircle is provided with gas ring groove and oil ring groove.

And through holes corresponding to the pin shafts are formed in two sides of the anti-expansion ring body.

And spring clamps attached to the inner wall of the piston base body are symmetrically arranged on the pin shaft.

And a clamping groove corresponding to the spring clamp is arranged on the pin shaft.

high temperature resistant components of a whole that can function independently piston that warp just can prevent the dismantlement of the expanded ring body after the round pin axle is taken off, makes things convenient for the components of a whole that can function independently to retrieve, prevents that expanded ring body bottom adopts open structure, can contact with lubricating oil and the heat dissipation when the piston motion, reduces the problem of preventing the expanded ring body, advances step suppression piston base member's thermal energy, reduces high temperature deformation.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a right side view of the expansion-resistant ring body of fig. 1.

Detailed Description

The following describes the technical solution of the present invention by reference to fig. 1 to fig. 2 and further through specific embodiments.

The split piston resistant to high temperature deformation shown in fig. 1 includes: piston base member 1, prevent the bulge loop body 2 and round pin axle 7, piston base member 1 bottom indent is provided with ring channel 8, prevent the bulge loop body 2 and set up in ring channel 8, utilize ring channel 8 to prevent the radial spacing of bulge loop body 2, the installation is convenient.

The piston base member 1 excircle bottom bilateral symmetry is provided with the round pin axle mounting hole 6 that runs through ring channel 8, round pin axle 7 level sets up in piston base member 1 and both ends extend to respectively in the round pin axle mounting hole 6 that corresponds, and the diameter of round pin axle 7 corresponds with the internal diameter of round pin axle mounting hole 6, and the structure is inseparable.

In order to improve the structural stability, the axial direction of the pin shaft 7 needs to be limited, the pin shaft 7 is symmetrically provided with spring clamps 9 attached to the inner wall of the piston base body 1, the axial direction of the pin shaft 7 is limited, the left and right drifting of the pin shaft 7 is avoided, and the stability of the piston during motion is improved. The pin shaft 7 is provided with a clamping groove corresponding to the spring clamp 9, so that the installation is convenient, the disassembly is convenient, and the maintenance of the pin shaft 7 is facilitated.

The two ends of the pin shaft 7 radially penetrate through the anti-expansion ring body 2 respectively, the axial limiting of the anti-expansion ring body 2 is realized by the pin shaft 7, the structural stability of the anti-expansion ring body 2 is improved, the pin shaft 7 is firstly disassembled during split maintenance or recovery, the anti-expansion ring body 2 can be disassembled, and the operation is simple and convenient.

As shown in fig. 2, through holes 3 corresponding to the pin shafts 7 are formed in two sides of the expansion-proof ring body 2, the diameter of each pin shaft 7 corresponds to that of the through hole 3, the fit is tight, the expansion-proof ring body 2 is prevented from shaking up and down relative to the piston base body 1, and the stability of the piston during movement is improved.

The piston base body 1 is an aluminum alloy piston, and is light in weight and high in strength. The expansion-proof ring body 2 is a steel ring, the steel ring is made of alloy materials with low expansion coefficients, the thermal expansion coefficient is reduced, the deformation caused by thermal expansion is small, and the expansion of the piston base body 1 is inhibited.

The upper portion of the outer circle of the piston base body 1 is provided with an air ring groove 4 and an oil ring groove 5, the air ring and the oil ring are installed respectively, and sealing performance is improved.

The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.

Claims

The high-temperature deformation resistant split piston is characterized by comprising a piston base body, an anti-expansion ring body and a pin shaft, wherein an annular groove is formed in the bottom of the piston base body in an inwards concave mode, the anti-expansion ring body is arranged in the annular groove, pin shaft mounting holes penetrating through the annular groove are symmetrically formed in two sides of the bottom of the outer circle of the piston base body, the pin shaft is horizontally arranged in the piston base body, two ends of the pin shaft respectively extend into the corresponding pin shaft mounting holes, two ends of the pin shaft respectively penetrate through the anti-expansion ring body in the radial direction, and axial limiting of the anti-expansion ring body is.
2. The split piston resistant to high temperature deformation according to claim 1, wherein the piston base body is an aluminum alloy piston, and the expansion-proof ring body is a steel ring.
3. The split piston capable of resisting high-temperature deformation according to claim 1, wherein a gas ring groove and an oil ring groove are formed in the upper portion of the outer circle of the piston base body.
4. The split piston resistant to high temperature deformation according to claim 1, wherein through holes corresponding to the pin shafts are formed in both sides of the anti-expansion ring body.
5. The split piston capable of resisting high-temperature deformation according to claim 1, wherein the pin shaft is symmetrically provided with spring clips attached to the inner wall of the piston base body.
6. The split piston resistant to high temperature deformation according to claim 5, wherein a clamping groove corresponding to the spring clamp is formed in the pin shaft.