Assembly and disassembly device of weight balancing arm for testing wind power pitch bearing

Abstract

The invention discloses an assembly and disassembly device and an assembly and disassembly method of a weight balancing arm for testing a wind power pitch bearing. The device comprises a weight balancing arm assembling and disassembling device and a hydraulic control system, wherein a travelling wheel I and a travelling II are arranged on a fixed rail; a driving arm is arranged on a shaft of the travelling wheel I; a swing arm is arranged on a shaft of the travelling wheel II; a parallelogram mechanism is formed by a pull rod and a base; a lifting hydraulic cylinder is arranged between the base and the driving arm; an advancing and retreating hydraulic cylinder is arranged on a fixed support on a foundation through a lug shaft, and the head part of the advancing and retreating hydraulic cylinder is connected with the base; the hydraulic control system consists of an oil tank component, an oil supply system, an advancing and retreating oil cylinder hydraulic system and a lifting oil cylinder hydraulic system; the advancing and retreating oil cylinder hydraulic system is used for controlling the weight balancing arm to advance and retreat and making the assembly and disassembly device floated; and the lifting oil cylinder hydraulic system is used for controlling the assembly and disassembly device of the weight balancing arm to ascend and descend and keeping pressure, so that the synchronous action of the two hydraulic cylinders is ensured, and low pressure and system pressure in the lifting process can be switched for two times. The device and the method have the advantages of efficient, safe and automatic weight balancing arm assembling and disassembling processes.

Description

Technical field [0001] The invention patent relates to a counterweight arm loading and unloading device for wind power variable pitch bearing test, which belongs to the technical field of mechanical equipment and hydraulic control. Background technique [0002] At present, in the performance test of the variable pitch slewing bearing of wind power generation, a counterweight arm is used to simulate the blade, and the counterweight simulates the wind load acting on the blade. The performance test of the variable pitch slewing bearing is carried out by connecting the counterweight arm and the hub. The hub is fixed on the base of the workshop floor, and the counterweight arms are placed on two fixed saddles in front of the hub. The number of counterweight arms varies from two or three depending on the structure of the impeller. The assembly and disassembly between the counterweight arm and the wheel hub is realized by a crane. The disadvantage is that only one counterweight arm can ...

AI Technical Summary

Problems solved by technology

The assembly and disassembly between the counterweight arm and the wheel hub is realized by a crane. The disadvantage is that only one counterweight arm can be assembled or disassembled at a time, and multiple people are required to participate in the assembly. The production efficiency and automation level are low, and the safety is poor.

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