Rope breakage safety protection device for mining car of inclined shaft

Abstract

The invention discloses a rope breakage safety protection device for a mining car of an inclined shaft. The device consists of two sets of braking devices with the same structure, wherein the two sets of braking devices correspond to front and rear wheels of the mining car respectively, and each set of braking device consists of a speed control device, a wheel quioning device and a rail quioning device; the speed control devices consist of braking pawls controlled by the speed of the wheels through centrifugal flail blocks; the wheel quioning devices consist of brake levers controlled by the braking pawls and braking wedge blocks; the rail quioning device consist of rail encircling blocks pulled by the braking wedge blocks through braking triggering ropes. The safety protection device has the advantages that the speed of the mining car is used as a starting signal, and the device can quickly response; in case of rope breakage, the wheel quioning devices and the rail quioning devices simultaneously act, so that double safety is provided; the device also has a safety protection function for the leftward and rightward movement rope breakage of the mining car and disconnection between mining cars; the device is compact in structure, light in weight and small in size.

Description

technical field [0001] The invention relates to a safety device for a mine, in particular to a safety protection device for a mine car broken rope in an inclined shaft of a coal mine. Background technique [0002] In order to prevent equipment damage and casualty accidents caused by broken ropes caused by sports cars when transporting personnel in inclined mine vehicles in coal mines, safety protection devices for broken ropes must be installed on inclined mine vehicles in coal mines. Currently commonly used safety protection devices mainly include gravity wedge type and spring wedge type. Among them, the gravity wedge type safety protection device relies on the weight of the weight to generate the wedge force. The wedge force is constant, but the weight of the hammer is relatively large, and the signal of broken rope needs to be detected and converted. The hammer action, the complicated intermediate link reduces the safety factor. The spring wedge type safety protection d...

AI Technical Summary

Problems solved by technology

Among them, the gravity wedge type safety protection device relies on the weight of the heavy hammer to generate the wedge force. Hammer action, the complex intermediate link reduces the safety factor

The spring wedge type safety protection device relies on the restoring force of the spring to generate the wedge force. To ensure the long-term normal operation of the device, the stiffness of the spring is required to be large, and the spring force needs to be transferred to the wedge clamp through a more complicated mechanism, resulting in the device The structure size is larger

Images