Insulation coupler and replacement method thereof

Abstract

The invention provides an insulation coupler and a replacement method thereof. The insulation coupler comprises an insulation sleeve, a pair of connecting devices and a pair of compensation membrane devices. The insulation sleeve comprises a sleeve body and a plurality of protrusions integrally extending outwards from the two ends of the sleeve body. Both the connecting devices comprise connecting discs and guide pieces arranged in the connecting discs. The connecting discs are detachably connected to the protrusions of the insulation sleeve in the radial direction. The guide pieces axially penetrate the connecting discs, so that the connecting discs axially slide along the guide pieces, and the insulation sleeve is kept in a locking state and an unlocking state. When the connecting discs are connected to the insulation sleeve in the radial direction, the insulation sleeve is in the locking state. When the connecting discs deviate from the insulation sleeve to slide, the insulation sleeve is in the unlocking state. Both the compensation membrane devices are axially connected to the guide pieces to be used for enabling a rotary shaft of a fan generating set and the insulation coupler to be elastically connected.

Description

technical field [0001] The invention relates to a shaft coupling, in particular to an insulating shaft coupling suitable for a wind power generating set and a replacement method thereof. Background technique [0002] A wind turbine is a power machine that converts wind energy into mechanical work. It uses wind power to drive the blades of the windmill to rotate, and then increases the speed of rotation through a speed increaser to drive the generator to generate electricity. Among them, a special high-speed flexible coupling is required between the generator and the speed reducer of the wind turbine to connect and transmit the torque between the shafts of the transmission system, and to compensate the deviation caused by the system. [0003] Flexible couplings for high-speed shafts of wind turbines are widely used in high-altitude nacelles on land and at sea (about 75 meters above the ground or sea), and are connected between the output shaft of the speed reducer and the inp...

AI Technical Summary

Problems solved by technology

Since the wind turbine is used at high altitude, the installation and maintenance are very inconvenient and the maintenance cost is expensive. During the use, the joint between the cylinder and the flange is often torn and damaged. Once the damage occurs, the cylinder needs to be replaced. The integrated assembly with the flange, and even some components are affected by disassembly and assembly and cannot be debugged on site. They also need to be replaced in one piece, resulting in the replacement of the entire coupling, prolonging the downtime for high-altitude replacement and the power outage time of the wind turbine. , the indirect loss is serious, resulting in an increase in the maintenance cost of the coupling

Therefore, the reliability and safety requirements of the coupling are very strict. If the entire coupling is replaced due to the damage of individual components, it will inevitably affect the reassembly and use of the coupling in the wind turbine.

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