Compressor crankshaft and plain bearing assembly apparatus and method

By designing automated compressor crankshaft and flat bearing assembly equipment, employing a rotary plate dual-station and crankshaft positioning gripper coordinated control, combined with an intelligent outer diameter sorting module, the problems of low efficiency and insufficient precision in the traditional assembly process are solved, achieving high-precision, stress-free, smooth assembly and full automation.

CN120551765BActive Publication Date: 2026-06-02CSIC PRIDE (NANJING) INTELLIGENT EQUIP SYST CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CSIC PRIDE (NANJING) INTELLIGENT EQUIP SYST CO LTD
Filing Date
2025-07-22
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

In the traditional assembly process of compressor crankshaft and flat bearing, reliance on manual labor or single equipment leads to low efficiency, insufficient precision, and difficulty in adapting multiple sizes. In particular, the loss of coaxiality of the stacked gasket-flat bearing-gasket and the offset of the crankshaft insertion trajectory cause the components to tilt, have uneven force, and frequently jam or malfunction.

Method used

A compressor crankshaft and flat bearing assembly equipment was designed, including a crankshaft feeding assembly, a crankshaft positioning assembly gripper, a bearing gasket rotating assembly, a flat bearing feeding assembly, and a gasket feeding assembly. It realizes the automatic assembly of crankshaft with gaskets and flat bearings. It adopts a dual-station design of rotating plate and staged collaborative control of crankshaft positioning gripper, combined with a crankshaft outer diameter intelligent sorting module to ensure size matching and assembly accuracy.

Benefits of technology

It achieves high-precision automated assembly of crankshaft and plane bearing, eliminates dimensional tolerance interference, ensures stress-free and smooth insertion, avoids jamming, improves production efficiency and completes full automation.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention discloses a compressor crankshaft and planar bearing assembly equipment and method, including a crankshaft outer diameter sorting assembly, a crankshaft feeding assembly, a crankshaft positioning and assembly grippers, a bearing gasket rotating assembly, a planar bearing feeding assembly, and two sets of gasket feeding assemblies. The crankshaft positioning and assembly grippers are located directly above the crankshaft planar bearing assembly station and include two crankshaft positioning grippers that can actively open and close and whose height can be raised and lowered. The bearing gasket rotating assembly includes a rotating plate and bearing gasket grippers. The planar bearing feeding assembly can automatically transfer the planar bearings to the bearing gasket placement slots in the bearing gasket loading station. The two sets of gasket feeding assemblies are symmetrically arranged on both sides of the planar bearing feeding assembly and can automatically transfer the gaskets to the bearing gasket placement slots in the bearing gasket loading station. This invention can realize the automatic assembly of the crankshaft with gaskets and planar bearings, and simultaneously achieve automatic assembly with the compressor. In addition, it can also automatically sort the outer diameter of the crankshaft to be fed.
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