Device for removing middle chutes of rear conveyor on fully mechanized mining face

Abstract

The invention provides a device for removing middle chutes of a rear conveyor on a fully mechanized mining face. The device comprises a base, a dragging assembly, a receiving-jacking assembly and a hydraulic system. The fixed end of the receiving-jacking assembly is connected with the base. A sliding part is arranged on the upper portion of the base. The dragging assembly is installed on the inner side of the sliding part. When the middle chutes of the rear conveyor need to be removed, the hydraulic system drives the dragging assembly to move to the chute positions to be connected with the chutes and drag out the chutes. After the chutes are dragged to the position nearby a smooth notch, the hydraulic system stops working, and a dumbbell pin between every two chutes is dismantled. The hydraulic system pulls the dragging assembly to make reverse return stroke action, till all the chutes in the rear conveyor are removed. The mode that the dragging assembly is connected with each chute in a butting mode replaces the traditional mode that a steel wire rope is used for dragging the chutes, working efficiency and safety are improved significantly, and labor intensity and the labor cost are reduced significantly.

Description

technical field [0001] The invention relates to the technical field of mining, in particular to a removal device for a chute in the middle of a conveyor at the rear of a fully mechanized mining face. Background technique [0002] The removal of the rear conveyor of the comprehensive working face is a systematic project. The removal of the middle chute is a relatively complicated part of the removal of the rear conveyor. The dismantling speed and the degree of mechanization determine the overall removal speed of the rear conveyor. [0003] At present, the dismantling of the middle chute is mainly achieved through the following procedures: firstly, drilling holes and firing guns on both sides of the working face where the mining is stopped, and installing the winch; then, cleaning the floating coal at the rear and removing the pulling chain at the rear; The winches and rope sets drag 6-8 joints of the rear conveyor chute to the inside of the tail run each time; finally, remove...

AI Technical Summary

Problems solved by technology

Due to the low safety factor of the connected steel wire rope, once the chute is blocked and the driver does not stop in time, it is very easy to break the rope and endanger the personal safety of the workers.

In addition, in the process of removing the dumbbell pins, the dismantling worker needs to enter the rear to disassemble, and at the same time, he needs to pull the steel wire rope from the rear of the bracket, which is not only time-consuming and labor-intensive, but also labor-intensive to disassemble

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