Monorail crane centrifugal release device

Abstract

The present invention provides a monorail crane centrifugal release device. The monorail crane centrifugal release device comprises a wheel body, a cylindrical sliding block, a positioning plate, a spring, hexagon socket screws and hexagon nuts; the cylindrical sliding block is installed in a through hole of the wheel body; the positioning plate is welded and fixed on an end surface of the wheel body and also provided with through holes and a lifting lug; one end of the spring is connected to the cylindrical sliding block, and the other end of the spring is connected to the lifting lug of the positioning plate; and the hexagon socket screws pass through the through holes, are abutted against an end surface of the cylindrical sliding block, and are fixed by the hexagon nuts. According to the monorail crane centrifugal release device, the hexagon socket screws and the hexagon nuts are rotated and adjusted to stretch and tension the spring to a preset position, when a monorail crane normally operates, centrifugal force is relatively small, centrifugal force of the cylindrical sliding block and tensile force of the spring are balanced, and the cylindrical sliding block is effectively prevented from moving up and down when the monorail crane normally operates; and the cylindrical sliding block is provided with a circular bench to prevent the sliding block from being thrown away, limiting and protecting effects are achieved, and therefore structure of a centrifugal releaser is stable and reliable.

Description

technical field [0001] The invention relates to a safety braking system, in particular to a safety braking system for a centrifugal releaser of a monorail crane. Background technique [0002] Auxiliary transportation in coal mines mainly refers to the transportation of underground equipment, personnel and materials in addition to coal. In recent years, the auxiliary transportation system of monorail cranes has been widely used in coal mines. A vital part of the braking system. In the process of winch rope traction, if the main control box fails or the monorail crane is in the downhill process, the monorail crane appears to run at an overspeed state. At this time, the centrifugal releaser brake system works to unload the brake cylinder to achieve safe braking. . At present, the centrifugal release device mainly uses the principle of centrifugal force, that is, under the overspeed state, the slider is subjected to the centrifugal force, and when the centrifugal force is grea...

AI Technical Summary

Problems solved by technology

However, when the monorail crane works normally, the slider connected to the spring moves up and down, and when the monorail crane overspeeds, the displacement of the slider and the sliding shaft is relatively large, which seriously affects the service life of the spring and even Causes the spring to be damaged and the slider cannot recover

For example, the patent application number is 201320647524.0, which is an adjustable centrifugal release device. On the basis of the existing centrifugal release device, the compression amount of the compression spring can be adjusted through two adjustment nuts, which is conducive to improving the sensitivity and accuracy of the centrifugal release device. , but its adjustable range is very small

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