Intelligent system and replacing method for replacing gear case high-speed shaft in air

Abstract

The invention discloses an intelligent system and a replacing method for replacing a gear case high-speed shaft in air. The intelligent system comprises a cantilever crane base, a cantilever crane stand column fixed to the cantilever crane base and a sliding rail fixed to the cantilever crane stand column through a fixing bolt; a rail trolley is installed on the sliding rail; a chain block is suspended on the rail trolley; wheels of the rail trolley are clamped to the sliding rail; a suspension hole is formed in the end of the rail trolley; the chain block comprises an upper lifting hook and a lower lifting hook; the upper lifting hook is hung into the suspension hole; and the lower lifting hook is hung to a tool special for the high-speed shaft. By means of the intelligent system and the replacing method for replacing the gear case high-speed shaft in air, use of large lifting and hoisting equipment and long-distance transportation of draught fan gear case are avoided, and risks in equipment use and gear case transporting process are reduced.

Description

technical field [0001] The invention relates to an intelligent system for replacing a high-speed shaft of a gearbox in the air and a replacement method thereof. Background technique [0002] During the operation and use of wind turbines, the gearbox is damaged due to various reasons such as lack of oil, sudden wind load shocks, etc. After the gearbox is damaged, it is necessary to replace the gearbox in time to ensure the normal operation of the wind turbine in order not to affect the normal operation of the power grid; usually wind power After the high-speed shaft of the gearbox is damaged, the entire fan (including blades, hubs, and nacelle) must be disassembled and lowered from the top of the tower to the ground, and then the gearbox in the nacelle must be disassembled and shipped back to the factory for disassembly and replacement of the high-speed shaft. The repaired gearbox is transported to the site for hoisting and restoration again. Such a repair plan is costly and ...

AI Technical Summary

Problems solved by technology

[0002] During the operation and use of wind turbines, the gear box is damaged due to various reasons such as lack of oil, sudden wind load shocks, etc. After the gear box is damaged, in order not to affect the normal operation of the power grid, the gearbox needs to be replaced in time to ensure the normal operation of the wind turbine; usually wind power After the high-speed shaft of the gearbox is damaged, the entire fan (including blades, hubs, and nacelle) must be disassembled and lowered from the top of the tower to the ground, and then the gearbox in the nacelle must be disassembled and shipped back to the factory for disassembly and replacement of the high-speed shaft. Shipping the repaired gearbox to the site for re-hoisting and restoration, such a repair solution is costly and takes a long time

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