Speed-adjustable hydraulic coal-clearing device for belt conveyer self-moving tail roller

Abstract

The invention relates to the technical field of belt conveyer self-moving tail devices matched with an entry under a coal mine, in particular to a speed-adjustable hydraulic coal-clearing device for a belt conveyer self-moving tail roller. The speed-adjustable hydraulic coal-clearing device is mainly composed of a coal-scrapping conveying trough, a spiral shaft assembly, a coupling disc, a linkage cover, a hydraulic motor, a hydraulic control system and a lubricating system. The spiral shaft assembly is driven by the hydraulic motor and transmits torque through the coupling disc characterized in flat key positioning and bolt linkage. The hydraulic control system is adopted for controlling and adjusting the rotating direction and rotating speed of the hydraulic motor. The coal discharging port of the coal scrapping conveying trough is formed inside a tail end frame and discharges coal through lateral-closing coal chutes formed in the two ends, wherein the inclination angle alpha of the lateral-closing chutes is larger than 46 degrees but smaller than 89 degrees. The coal-clearing device is adjustable in running speed and changeable in coal-discharging direction, accumulated coal of the belt conveyer self-moving tail roller can be automatically cleared away, the labor intensity of workers is relieved, and the coal-clearing efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of a self-moving tail device of a belt conveyor for underground coal mine trough matching equipment, in particular to a speed-adjustable hydraulic coal cleaning device for a belt self-moving tail drum. Background technique [0002] The belt self-moving tail is installed in the transportation trough of the coal mining face, and the belt self-moving tail mechanism is used to replace the traditional belt conveyor tail and the tail bearing section, which is the bridge between the bridge type transfer machine and the belt conveyor. The advanced connecting device can realize the forward movement of the tail of the belt conveyor during the mining of the working face, which can meet the needs of high progress and fast advancement. At the same time, it has the functions of tape deviation adjustment, straightening of the moving direction of the bridge transfer machine and automatic forward movement, etc., to ensure sm...

AI Technical Summary

Problems solved by technology

[0003] During the operation of the belt conveyor, it is often due to the large amount of coal at the coal drop point or the impact of large lumps of coal, the installation of the frame is not straight enough, etc., causing the bottom belt to pull back the coal to varying degrees.

Although the tail of the belt self-moving machine is equipped with a coal scraper at the entrance of the bottom belt and in front of the tail drum, it is still unavoidable that the returned coal is drawn into the tail drum by the belt, and the tail drum is partially stained with coal dust, which will cause the belt to deviate and aggravate the return. Coal phenomenon, even tear the belt

The original coal cleaning device at the tail of the belt self-moving machine is to install a coal cleaning plate with a coal collection tank in front of the tail drum. The coal in the coal collection tank is cleaned manually, which has potential safety hazards and waste of manpower.

There has also been an automatic coal cleaning device in the tail of the traditional belt conveyor, which is driven by a motor and decelerated by a reduction box; or an additional roller is added to drive it, using a belt transmission deceleration or a gear transmission deceleration, with a deceleration mechanism and a coal discharge port. They are all on the outside of the frame, with complex structure and large space occupation. It is difficult to install and disassemble in the limited space of underground coal mine.

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