A main shaft polishing device for maintenance of a generator set

By using a support frame, a rotating support assembly, and a constant force grinding device driven by a servo motor, the problems of thermal expansion caused by laser grinding and instability of traditional clamping are solved, achieving efficient and uniform repair of the spindle and improving the service life and production efficiency of the generator set.

CN121199784BActive Publication Date: 2026-05-15SHANDONG BIVOS MECHANICAL & ELECTRICAL ENG CO LTD
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Patent Information

Application Number
CN202511537596.3
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-10-27
Publication Date
2026-05-15
Estimated Expiration
2045-10-27

AI Technical Summary

Technical Problem

In existing technologies, when laser polishing the main shaft of a generator set, high temperatures may cause thermal expansion of the material or changes in surface hardness, affecting mechanical properties and durability. Furthermore, traditional clamping methods can easily lead to force concentration or poor stability at the shaft end.

Method used

The constant force grinding device, which adopts a support frame and rotating support components and is driven by a servo motor, achieves uniform clamping and flexible adjustment of the spindle through double roller support and servo motor control, ensuring constant contact pressure and uniform grinding during the grinding process.

Benefits of technology

It improves the efficiency and quality of spindle repair, reduces surface damage, enhances the working performance and lifespan of the spindle, and allows for flexible adjustments to accommodate different levels of damage, making it suitable for on-site maintenance scenarios.

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Abstract

The application discloses a main shaft polishing device for generator set maintenance, and belongs to the technical field of main shaft polishing.The main shaft polishing device for generator set maintenance comprises a support frame, a plurality of rectangularly and symmetrically arranged sliding grooves are formed in the top of the support frame, the sliding grooves are arranged in an open state away from the inner side of the support frame, a rack is slidably connected to the support frame and located in the sliding groove, the rack is limited by the support frame, a lifting gear is transmissionally connected to one side of the rack, the lifting gear is rotationally connected with the support frame, two lifting gears located on one side of the support frame are fixedly connected with a connecting rod, and the connecting rod is rotationally connected with the support frame.The polishing plate with constant clamping force is in contact with the surface of the rotating main shaft by adopting the constant force polishing assembly and the rotating support assembly, even polishing is realized, excessive heat concentration can be effectively avoided, and the hardening or cracking of the surface of the main shaft due to local high temperature can be prevented.
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