An adjustable monorail crane centrifugal overspeed protection device

Abstract

The invention discloses an adjustable monorail crane centrifugal overspeed protection device, which belongs to the technical field of monorail crane locomotives. The invention mainly includes a pressing speed taking device, a centrifugal protection device, a lever starting device and an overspeed protection trolley. Press the speed take-off device to obtain the running speed of the monorail crane in real time, and transmit the speed to the centrifugal protection device. Under the action of centrifugal force, the sliding rod slides out of the centrifugal protection device, and the lever is moved to start the hydraulic brake circuit to complete the overspeed control of the monorail crane. verb: move. The invention is used to obtain the running speed of the monorail crane in real time, transmit the rotating speed to the centrifugal protection device to start the brake, and there is no direct connection between the lever starting device and the centrifugal protection device, so as to ensure the safety and reliability of the overspeed brake protection start.

Description

technical field [0001] The invention relates to a monorail crane overspeed protection device, which belongs to the technical field of monorail crane locomotives. Background technique [0002] The explosion-proof diesel engine monorail locomotive used underground is a multi-functional, high-efficiency, and multi-purpose underground auxiliary transportation vehicle. As a heavy load and personnel transportation equipment, its operation safety must be guaranteed. Speed ​​has clear requirements. [0003] At present, the mechanical overspeed protection of monorail cranes is mainly the centrifugal overspeed protection device. In the existing pressing device, when the monorail crane is turning or going up and down slopes, the change of the contact state between the speed take-off wheel and the track makes it impossible for the speed take-off wheel to closely fit the track, resulting in inaccurate speed take-off. In addition, due to the difference in mass between the speed take-off...

AI Technical Summary

Problems solved by technology

When the existing pressing device is turning or going up and down the slope of the monorail crane, the change of the contact state between the speed take-off wheel and the track makes the speed take-off wheel and the track unable to fit tightly, resulting in inaccurate speed take-off

In addition, due to the difference in mass between the speed take-off wheel and the outer centrifugal device, it is difficult to balance the center of gravity, resulting in partial sinking. At the same time, the speed-take-off wheel is subjected to the reaction force of the track due to the spring force, resulting in torque, and the speed take-off wheel also cannot fit the track.

On the other hand, the adjustment of the centrifugal force to start the overspeed protection is cumbersome, and it is inconvenient to adjust downhole

Moreover, the lever trigger device and the centrifugal device in the prior art are integrally assembled, and when the monorail locomotive turns and goes up and down, it is easy to cause the overspeed device to start by mistake.

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