Compression spring sleeve structure and compressor

Abstract

The utility model relates to a pressure spring casing pipe structure which comprises a pressure spring and a casing pipe, the casing pipe is sleeved on the outer surface of the pressure spring, the casing pipe is made of rubber and plastic materials, two ends of the pressure spring are provided with tightening rings, the bottom end of the casing pipe is in close contact with the tightening rings at the bottom end of the pressure spring to be fixed, and other portions of the upper end of the casing pipe are in transition fit with the pressure spring. The casing pipe with a certain length is arranged outside the compression spring, the bottom of the casing pipe is connected and fastened with the compression spring, the upper half portion of the casing pipe is in transition fit with the compression spring, transverse deformation of the compression spring in the operation process of the compressor can be restrained by the casing pipe, the casing pipe provides reverse acting force, and therefore transverse deformation of the compression spring is reduced, and the compression spring is prevented from being damaged. And vibration and noise of the compressor are improved.

Description

Technical Field

[0001] This utility model relates to the field of refrigeration compressor technology, specifically a spring sleeve structure and compressor. Background Technology

[0002] Existing fully enclosed reciprocating refrigeration compressors generally consist of a casing with a compression spring structure at the bottom inside. The compressor core is mounted on the compression spring to buffer vibration and reduce noise. However, traditional compression spring structures have the following problems during actual compressor operation: the spring has relatively low lateral stiffness, making it prone to lateral deformation during compressor operation, thus increasing compressor vibration. If the motor torque is too high, the spring will undergo significant lateral deformation during compressor start-up and shutdown, easily worsening compressor vibration and start-stop noise. Summary of the Invention

[0003] The purpose of this invention is to solve the problems existing in the above-mentioned compressors and to provide a spring sleeve structure and a compressor.

[0004] The specific solution of this utility model is: a compression spring sleeve structure, including a compression spring and a sleeve, the sleeve is sleeved on the outer surface of the compression spring, the sleeve is made of rubber and plastic, the two ends of the compression spring are provided with tightening rings, the bottom end of the sleeve is in close contact with the tightening ring at the bottom end of the compression spring for fixation, and the other parts of the upper end of the sleeve have a transition fit relationship with the compression spring.

[0005] Furthermore, the sleeve is a heat-shrinkable sleeve, and the bottom of the heat-shrinkable sleeve is heat-shrinkable and has an interference fit with the compression spring.

[0006] Furthermore, the length of the sleeve is 55%-75% of the length of the compression spring, and the bottom end face of the sleeve is flush with the bottom end face of the compression spring.

[0007] Furthermore, the material used for the sleeve has the characteristics of high temperature resistance, oil resistance, and corrosion resistance.

[0008] This utility model also provides a compressor, including a housing, with an internal core inside the housing. The bottom of the housing is equipped with the aforementioned compression spring sleeve structure, and the bottom end of the internal core is connected to the top end of the compression spring.

[0009] Compared with the prior art, this utility model has the following advantages: by setting a sleeve of a certain length outside the compression spring, the bottom of the sleeve is connected and fastened to the compression spring, and the upper half is transitionally fitted with the compression spring, the compression spring will be suppressed by the sleeve when it undergoes lateral deformation during the operation of the compressor. The sleeve provides a reverse force, thereby reducing the lateral deformation of the compression spring and improving the vibration and noise of the compressor. Attached Figure Description

[0010] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0011] Figure 2 This is the front view of this utility model;

[0012] Figure 3 yes Figure 2 AA view;

[0013] In the diagram: 1. Sleeve; 101. Heat shrinkable part; 2. Compression spring; 201. Tightening ring. Detailed Implementation

[0014] See Figure 1-3 This embodiment is a compression spring 2 sleeve 1 structure, including compression spring 2 and sleeve 1. The sleeve 1 is sleeved on the outer surface of compression spring 2. The sleeve 1 is made of rubber and plastic. The two ends of compression spring 2 are provided with tightening rings 201. The bottom end of the sleeve 1 is in close contact with the tightening ring 201 at the bottom end of compression spring 2 for fixation. The other parts of the upper end of the sleeve 1 have a transition fit relationship with compression spring 2.

[0015] Furthermore, the sleeve 1 is a heat shrink sleeve 1, and the bottom of the heat shrink sleeve 1 is heat-shrinked and interference-fitted with the compression spring 2.

[0016] Furthermore, the length of the sleeve 1 is 55%-75% of the length of the compression spring 2, and the bottom end face of the sleeve 1 is flush with the bottom end face of the compression spring 2.

[0017] Furthermore, the material used for the sleeve 1 has the characteristics of high temperature resistance, oil resistance, and corrosion resistance.

[0018] This embodiment also provides a compressor, including a housing, within which an internal core is installed. The bottom of the housing is fitted with the aforementioned compression spring 2 and sleeve 1 structure, with the bottom end of the internal core connected to the top end of the compression spring 2. This invention features a heat-shrinkable sleeve 1 around the outer ring of the compression spring 2. The bottom end of the heat-shrinkable sleeve 1 is flush with the bottom end of the compression spring 2, and the bottom end of the heat-shrinkable sleeve 1 forms an interference fit with the compression spring 2 through heating and shrinking. During compressor operation, the sleeve 1 will not move up and down. The portion of the sleeve 1 other than its bottom end does not require heating and shrinking, forming a transition fit with the compression spring 2. The compression spring 2 deforms normally when compressed by the internal core, and the heat-shrinkable sleeve 1 is not subjected to longitudinal force.

[0019] When the compression spring 2 undergoes lateral deformation, the heat shrink tubing 1 is subjected to force and provides a reaction force, which can reduce the lateral deformation of the compression spring 2 and improve the vibration and noise of the compressor.

Claims

1. A compression spring sleeve structure, characterized in that: It includes a compression spring and a sleeve. The sleeve is fitted over the outer surface of the compression spring and is made of rubber and plastic. Both ends of the compression spring are provided with tightening rings. The bottom end of the sleeve is in close contact with the tightening ring at the bottom end of the compression spring for fixation. The other parts of the upper end of the sleeve have a transition fit with the compression spring.

2. The compression spring sleeve structure according to claim 1, characterized in that: The sleeve is a heat-shrinkable sleeve, and the bottom of the heat-shrinkable sleeve is heat-shrinkable and has an interference fit with the compression spring.

3. The compression spring sleeve structure according to claim 1, characterized in that: The length of the sleeve is 55%-75% of the length of the compression spring, and the bottom end face of the sleeve is flush with the bottom end face of the compression spring.

4. A compressor, comprising a housing, wherein an organic core is disposed within the housing, characterized in that: The bottom of the housing is equipped with a compression spring sleeve structure as described in any one of claims 1-3, and the bottom end of the movement is connected to the top end of the compression spring.

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