High manganese steel balance block of scroll compressor

By designing a balance block for a scroll compressor made of high-manganese steel, with a boss that matches the compressor shaft, an oil reservoir to store lubricating oil, and sound-absorbing cotton on the surface to reduce noise, the problems of compressor shaft fixing and lubrication noise are solved, achieving stable assembly and noise reduction effects.

CN224550704UActive Publication Date: 2026-07-24WUHU ZHENGKE PRECISION MASCH MFG CO LTD
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Patent Information

Application Number
CN202521688379.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-08
Publication Date
2026-07-24
Estimated Expiration
2035-08-08

AI Technical Summary

Technical Problem

The existing compressor's balance block has problems with shaft fixation and lubrication, and its noise control is ineffective.

Method used

A high-manganese steel balance block for a scroll compressor is designed. The ring-shaped body is made of high-manganese steel and has a boss that matches the compressor shaft. It is equipped with through holes, an oil reservoir, and an oil reservoir to store lubricating oil. The "7"-shaped protrusion of the boss matches the compressor shaft. The outer oil reservoir stores lubricating oil, and the surface is provided with an arc-shaped groove filled with sound-absorbing cotton to achieve noise reduction.

Benefits of technology

This achieves stable fixing and lubrication of the compressor shaft, reduces noise, and improves assembly precision and noise reduction effect.

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Abstract

The utility model relates to the field of precision casting of compressors, and provides a high manganese steel balance block of a scroll compressor, which is sleeved outside a shaft rod of the compressor through a circular ring body and is matched with a shaft part of the compressor through a convex boss. The 7-shaped protrusion of the boss can be well matched with the shaft portion of the compressor to achieve firm assembly, the body is installed and fixed through the four through holes, lubricating oil is stored in the outer side of the body through the oil storage groove so as to facilitate lubrication, the surface of the body is provided with the sound attenuation cotton through the arc-shaped groove, and noise reduction is achieved on the basis that the overall structure is not affected. The size of the body, the size of the through hole and the size of the boss are well matched with the compressor, and accurate assembly is achieved; the arc-shaped grooves are sequentially arranged in the circular direction, so that the space is utilized to the maximum extent, and the noise reduction effect is guaranteed.
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