Treadle type turning gear for elevator lifting

Abstract

The invention discloses a treadle type turning gear for elevator lifting. The treadle type turning gear for elevator lifting comprises a central body and a swinging arm; the central body comprises a central frame and a gear, the gear is erected on the central frame through a rotation shaft which is transversely arranged, and one end of the rotation shaft is connected with a traction machine transmission shaft; the swinging arm comprises a swinging arm shell, a rack and a compressing wheel, and the rack is vertically and movably arranged in the swinging arm shell, is in close fitting with the gear when the rack falls and is separated from the gear when the rack rises; the compressing wheel is rotatably arranged in the swinging arm shell, compresses the rack to mesh with the gear when the rack falls and loosen meshing between the rack and the gear when the rack rises; and a foot stool is connected to the lower end of the rack. According to the treadle type turning gear for elevator lifting, the turning gear can achieve simultaneous use of hands and feet of an operator, one person can achieve turning, the labor intensity is reduced, and the cooperation degree requirement of turning operation is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of elevator equipment, in particular to a pedal-type barring device used for elevator lifting. Background technique [0002] The elevator is a high energy-consuming equipment, and the elevator traction machine is the power equipment of the elevator, also known as the elevator host. The function is to convey and transmit power to make the elevator run. Elevator cranking refers to the operation of driving the traction sheave through an energy input device other than the traction motor to run the elevator car to a designated area. Before the elevator commissioning or when the elevator car stops unexpectedly in the non-unlocking area, cranking is required. The existing manpower barring of the elevator is operated by one person to operate the braking device, and another person pulls the barring handwheel, and the cooperation of two people is needed to complete the operation. Its main disadvantages are reflecte...

AI Technical Summary

Problems solved by technology

Its main disadvantages are reflected in the following aspects: 1) The turning operation is labor-intensive and requires two people to cooperate several times to complete it. During this period, it cannot be completely guaranteed that the two people cooperate consistently. Inconsistent cooperation is often encountered, which may cause the brakes to not lock, the traction wheel to reverse, and seriously threaten the safety of personnel; 2) When the elevator needs maintenance, the maintenance unit usually needs to send two people, and the labor cost is high , resulting in a waste of resources

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