CN221236854U

CN221236854U - High-pressure high-piston force reciprocating compressor piston

Info

Publication number: CN221236854U
Application number: CN202323149788.6U
Authority: CN
Inventors: 王显超; 林金梁; 于淼; 李双羽; 任乐; 关洪浩; 焦圳; 蒋文瀚; 柴卓; 孔皓楠
Original assignee: Shenyang Yuanda Compressor Co Ltd
Current assignee: Shenyang Yuanda Compressor Co Ltd
Priority date: 2023-11-21
Filing date: 2023-11-21
Publication date: 2024-06-28
Anticipated expiration: 2033-11-21

Abstract

The utility model discloses a high-pressure and large-piston-force reciprocating compressor piston, which comprises a front half piston body, a rear half piston body, a piston sleeve and a piston rod, wherein the front half piston body and the rear half piston body are sleeved on the piston rod; the piston sleeve is fixed with the front half piston body and the rear half piston body, and the used pins are arranged inside the piston part, so that the hidden danger of pin falling is avoided.

Description

High-pressure high-piston force reciprocating compressor piston

Technical Field

The utility model relates to the technical field of compressor pistons, in particular to a high-pressure and large-piston-force reciprocating compressor piston.

Background

A piston part of the traditional reciprocating compressor adopts a mode of fixing a piston body and a piston sleeve by using screws and anti-loose gaskets, and the circumferential movement of the piston sleeve is restrained. If the pretightening force of the screw is not up to the standard in the normal maintenance stage of the equipment under the action of alternating force of the reciprocating compressor, the screw and the anti-loose gasket have the hidden trouble of detachment and fracture. The falling of the screw and the anti-loose gasket can cause the piston to strike the cylinder cover or the cylinder seat, which is a serious equipment safety event, so that development of a piston structure with high safety is needed.

Disclosure of utility model

Aiming at the defects of the prior art, the utility model provides a high-pressure and large-piston-force reciprocating compressor piston, which solves the problems that the existing piston sleeve is connected with a locking gasket by adopting a screw, and the hidden danger of falling and breakage is easy to cause.

In order to achieve the above purpose, the utility model is realized by the following technical scheme: the utility model provides a high pressure, big piston force reciprocating compressor piston, includes first half piston body, second half piston body, piston sleeve and piston rod, first half piston body with second half piston body suit in on the piston rod, piston sleeve both sides wall with pass through the pin connection between first half piston body inner wall and the second half piston body inner wall.

Preferably, the outer side of the piston sleeve is respectively sleeved with a supporting ring and a piston ring.

Preferably, a piston nut is arranged at one end of the piston rod, which is close to the front half piston body.

Preferably, the two side walls of the piston sleeve are connected with the inner wall of the front half piston body and the inner wall of the rear half piston body through pins.

Preferably, the piston sleeve is provided with mortise and tenon structures matched with each other between the front half piston body and the rear half piston body, and the piston sleeve is connected with the front half piston body and the rear half piston body through the mortise and tenon structures.

Advantageous effects

The utility model discloses a high-pressure and large-piston-force reciprocating compressor piston, which has the following beneficial effects:

1. The piston part does not use the traditional screw and anti-loose gasket fixing structure, only uses the pin to fix circumferentially, and solves the hidden trouble that the screw and the anti-loose gasket fall off and break under the long-time running condition of the high-pressure and large-piston-force reciprocating compressor.

2. The piston sleeve is fixed with the front half piston body and the rear half piston body, and the used pins are arranged inside the piston part, so that the hidden danger of pin falling is avoided.

Drawings

Fig.1 is a schematic structural view of the present utility model.

In the figure: 1. a piston nut; 2. a front half piston body; 3. a pin; 4. a piston sleeve; 5. a support ring; 6. piston rings; 7. a rear half piston body; 8. a piston rod.

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, the present utility model provides a technical solution: the utility model provides a high pressure, big piston force reciprocating compressor piston, includes first half piston body 2, second half piston body 7, piston sleeve 4 and piston rod 8, first half piston body 2 with second half piston body 7 suit in on the piston rod 8, piston sleeve 4 both sides wall with connect through the round pin 3 between first half piston body 2 inner wall and the second half piston body 7 inner wall.

The embodiment is further provided that the outer side of the piston sleeve 4 is respectively sleeved with a supporting ring 5 and a piston ring 6.

The embodiment is further arranged that the end of the piston rod 8, which is close to the front half piston body 2, is provided with a piston nut 1.

The embodiment is further provided that the two side walls of the piston sleeve 4 are connected with the inner wall of the front half piston body 2 and the inner wall of the rear half piston body 7 through the pin 3.

The embodiment is further configured in that a mortise-tenon structure matched with each other is arranged between the piston sleeve 4 and the front half piston body 2 and the rear half piston body 7, and the piston sleeve 4 is connected with the front half piston body 2 and the rear half piston body 7 through the mortise-tenon structure.

The components in this case are connected in sequence by a person skilled in the art, and specific connection and operation sequence should be referred to the following working principle, and the detailed connection means are known in the art, and the following working principle and process are mainly described.

Example 1: according to the application, the pin 3 for fixing is arranged in the piston sleeve 4, the front half piston body 2 and the rear half piston body 7, so that the hidden danger that the traditional screw and anti-loose gasket fixing structure is easy to fall off and break under the condition of long-time working of the high-pressure and large-piston-force reciprocating compressor is solved.

Example 2: mortise and tenon structural cooperation is processed between the front half piston body 2, the rear half piston body 7 and the piston sleeve 4, namely spline structural cooperation between the piston body and the piston sleeve 4 is performed for circumferential fixation.

Example 3: the front half piston body 2, the rear half piston body 7 and the piston sleeve 4 are circumferentially fixed by using keys instead of pins 3.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The term "comprising" an element defined by the term "comprising" does not exclude the presence of other identical elements in a process, method, article or apparatus that comprises the element.

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. The utility model provides a high pressure, big piston force reciprocating compressor piston, includes first half piston body (2), second half piston body (7), piston sleeve (4) and piston rod (8), its characterized in that, first half piston body (2) with second half piston body (7) suit in on piston rod (8), piston sleeve (4) both sides wall with be connected through round pin (3) between first half piston body (2) inner wall and the second half piston body (7) inner wall.

2. A high pressure, high piston force reciprocating compressor piston according to claim 1, characterized in that the outside of the piston sleeve (4) is fitted with a supporting ring (5) and a piston ring (6), respectively.

3. A high pressure, high piston force reciprocating compressor piston according to claim 2, characterized in that the end of the piston rod (8) close to the front half piston body (2) is provided with a piston nut (1).

4. A high pressure, high piston force reciprocating compressor piston according to claim 1, characterized in that the two side walls of the piston sleeve (4) are connected with the inner wall of the front half piston body (2) and the inner wall of the rear half piston body (7) by means of keys.

5. The high-pressure large-piston-force reciprocating compressor piston according to claim 1, wherein a mortise-tenon structure matched with each other is arranged between the piston sleeve (4) and the front half piston body (2) and the rear half piston body (7), and the piston sleeve (4) is connected with the front half piston body (2) and the rear half piston body (7) through the mortise-tenon structure.