Special grinding machine for repairing collecting ring of large steam turbine generator and exciter

By designing a special grinder for collector ring repair, the problem of insufficient efficiency, accuracy and safety of collector ring repair in the existing technology is solved, an efficient and precise repair effect is achieved, and it is adapted to on-site repair and high-tech applications. Speed ​​processing requirements.

CN119304744APending Publication Date: 2025-01-14HARBIN HUADIAN ENERGY EQUIPMENT CO LTD
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Patent Information

Application Number
CN202411681077.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-22
Publication Date
2025-01-14

AI Technical Summary

Technical Problem

The existing collector ring repair methods have shortcomings in efficiency, accuracy, safety and applicability, especially in high-speed machining and water-free grinding.

Method used

A special grinding machine for the repair of large turbine generators and exciter collector rings is designed. It adopts touch screen control, programmed automated processing and manual feeding functions. It has high-precision adjustment capabilities and widely adjustable grinding head rotation speed, and supports unlimited Water grinding, and the feet can be adjusted according to different site conditions.

Benefits of technology

It achieves efficient and precise collector ring repair, meets the requirements of on-site repair, high-speed processing and waterless grinding, and improves processing efficiency and product stability and reliability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a special grinding machine for repairing a collecting ring of a large steam turbine generator and an exciter, which comprises a machine tool, a center height adjusting device, a longitudinal adjusting device, a radial adjusting device, a grinding assembly and a control assembly, and is characterized in that a driving assembly is arranged in the machine tool; the longitudinal adjusting device comprises a longitudinal adjusting assembly, and the longitudinal adjusting assembly is arranged on the machine tool in a sliding mode; the radial adjusting device comprises a radial adjusting assembly, and the radial adjusting assembly is arranged on the longitudinal adjusting assembly in a sliding mode; the control assembly is arranged on one side of the machine tool. Therefore, touch screen control is adopted, programming automatic machining and manual feeding are supported, high-precision machining (the center height adjusting precision is 0.02 mm, the machining surface roughness Ra is 0.4-0.2, the ovality is 0.01 mm, and the taper is 0.02 mm within 300 mm) is ensured, the length of a machine tool is 1235 mm, the machine tool is adaptive to the sizes of collecting rings at home and abroad, and ground feet are adjustable to adapt to complex environments. A water-free grinding technology is adopted to guarantee safety, adjustment and speed regulation are easy and convenient (1-1500 revolutions per minute), and the efficiency is improved through intelligent control of a servo motor.
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