A laser cladding repair equipment for water turbine runner blade

By designing a laser cladding repair device for turbine runner blades with height adjustment, cooling, and a retractable moving mechanism, the problem of insufficient cooling in existing equipment has been solved, enabling automated and high-precision blade repair. This device can adapt to the repair needs of blades of different specifications and ensure stable operation of the equipment.

CN122683142APending Publication Date: 2026-09-04SHENYANG INST OF ENG
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Patent Information

Application Number
CN202611063777.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-07-17
Publication Date
2026-09-04

AI Technical Summary

Technical Problem

Existing laser cladding repair equipment for turbine runner blades lacks efficient cooling capabilities, which makes the cladding head prone to overheating and affects the repair process.

Method used

A laser cladding repair device for turbine runner blades was designed, including height adjustment, cooling, and a retractable moving mechanism. The repair height is adjusted by a screw driven by a servo motor, the robotic arm enables multi-angle repair, the cooling mechanism uses a chiller and a spiral guide plate for efficient cooling, the moving mechanism uses wheels and conductive slip rings to ensure stable movement of the device, and the control module enables automated control.

Benefits of technology

It enables automated, high-precision, and mobile laser cladding repair of turbine runner blades, ensuring stable operation of the cladding head and improving repair efficiency and accuracy. The equipment is wirelessly controlled and powered by lithium batteries, adapting to the repair needs of blades of different specifications.

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Abstract

The application provides a water turbine runner blade laser cladding repair device. The water turbine runner blade laser cladding repair device comprises a vehicle body, a support fixedly installed on the vehicle body, a U-shaped frame fixedly installed on the support, a laser cladding repair mechanism located on one side of the U-shaped frame and used for laser cladding repair of the water turbine runner blade, a height adjusting mechanism arranged on the U-shaped frame and used for adjusting the height of the laser cladding repair mechanism, a cooling mechanism installed on the U-shaped frame and used for cooling the laser cladding repair mechanism, and a storable moving mechanism arranged on the inner wall of the vehicle body and used for driving the device to move. The water turbine runner blade laser cladding repair device has the advantages of efficient cooling function of the cladding head, convenient movement, and the ability to repair blades installed at different heights and at different installation angles.
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