Supporting stator screw on a reciprocating piston compressor

By eliminating the interference fit and adopting an integrated molded washer and anti-slip texture design on the nut, the problems of high processing difficulty and high risk of loosening of existing stator support screws are solved, achieving a stable connection between the screw and the stator and simplifying installation, thereby improving the stability and production efficiency of the compressor.

CN224396879UActive Publication Date: 2026-06-23HUANGSHI DONPER COMPRESSOR CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUANGSHI DONPER COMPRESSOR CO LTD
Filing Date
2025-06-20
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

The existing stator support screws of reciprocating piston compressors have problems such as high processing difficulty, easy damage to the stator due to rigid contact, unstable preload, difficulty in ensuring perpendicularity, high requirements for the accuracy of structural design parameters, complex installation and high risk of loosening during long-term operation.

Method used

Design a stator screw support that eliminates the interference fit between the spring support block and the stator screw. Instead, adopt an integrated molded washer on the nut, with the spring directly interference-fitted onto the nut. Enhanced friction through a wrench mechanism and anti-slip texture ensures the screw is not easily loosened, simplifying the assembly and disassembly process.

Benefits of technology

It increases the friction between the screw and the stator, reduces the risk of loosening, simplifies the installation process, and improves production efficiency and the stability and performance of the compressor.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224396879U_ABST
    Figure CN224396879U_ABST
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Abstract

The utility model discloses a kind of support stator screw on reciprocating piston compressor, comprising: nut is equipped with wrenching structure, one end of nut is integrally formed with gasket, compression spring on reciprocating piston compressor can be interference fitted on nut;The one end of screw rod is vertically fixed with the side plate surface of gasket away from nut. Screw in the present application, it cancels the interference assembly of existing technology compression spring support block and the nut of existing stator screw, gasket is integrally formed on nut, compression spring is directly interference fitted on nut, gasket is directly abutting against the end surface of motor stator of reciprocating piston compressor, above-mentioned structure is simple and reliable, on one hand, gasket can increase the friction between its and the end surface of motor stator of reciprocating piston compressor, screw is not easy to loosen, and the risk that stator screw pre-tightening force is small can be avoided;On the other hand, while guaranteeing that compression spring and nut are reliably assembled, screw is also convenient to disassemble.
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