Automatic barring gear of fan

Abstract

The invention discloses an automatic barring gear of a fan, which comprises a motor, a barring motor control cabinet, a speed reducer, a universal coupling and an overrunning clutch. The barring gear is provided with the motor, the barring motor control cabinet is disposed on the lower side of the motor, a rotating shaft of the motor is connected with an input shaft of the speed reducer, the speed reducer is further connected with the overrunning clutch via the universal coupling, an inner retaining ring and an outer retaining ring are disposed on the overrunning clutch, the inner retaining ring is connected with a spindle of the fan, the outer retaining ring is connected with the universal coupling, the inner retaining ring is connected with the outer retaining ring via a wedge block, after the motor of the barring gear is started, the inner retaining ring is driven by the outer retaining ring of the overrunning clutch, simultaneously, a rotor of the total fan is driven to rotate, and accordingly barring is successful. The automatic barring gear of the fan is simple in structure, realizes full automatic operation, saves time and labor, and can effectively improve work efficiency and stability of the fan.

Description

technical field [0001] The invention belongs to the field of machinery, and relates to a turning device, in particular to an automatic turning device for a fan. Background technique [0002] In the traditional start-up process of fans, for fans with a relatively large moment of inertia and infrequent start and stop, a section is usually extended on the main shaft, and artificial manual turning is used until the fan rotor turns, and then the main motor is turned on. This method has been used until now, but its disadvantages are: every time the fan is turned on, manual on-site operation is required, and special tools are required for manual turning. This method is cumbersome and inefficient. Contents of the invention [0003] Purpose of the invention: The purpose of the invention is to solve the deficiencies of the prior art and provide a fan automatic cranking device with simple structure and convenient operation. [0004] Technical solution: The fan automatic cranking dev...

AI Technical Summary

Problems solved by technology

This method has been used until now, but its disadvantages are: every time the fan is turned on, manual on-site operation is required, and special tools are required to perform manual turning. This method is cumbersome and inefficient.

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