Adjustable middle chute

Abstract

The invention relates to a middle chute, and particularly relates to an adjustable middle chute for coal conveying in the coal seam mining process. According to the adjustable type middle chute, through arranging a hydraulic cylinder and a support plate, the angle of the middle chute is adjustable, so that the coal shoveling through a coal shoveling plate is facilitated, thus preventing the situation that a bottom plate is deviated during the propelling process of the middle chute so as to affect coal transportation efficiency. The adjustable middle chute comprises the hydraulic cylinder and the support plate, wherein a first end of the chute is fixedly provided with the coal shoveling plate, the top end of a second end of the chute is fixedly provided with a fixing coal baffler plate, thebottom of the chute is hinged with the support plate, the middle of the second end of the chute is hinged with the hydraulic cylinder, a push rod of the hydraulic cylinder is hinged with the supportplate, and the top of the fixing coal baffler plate is fixedly provided with a nozzle which inclines towards the coal wall side.

Description

technical field [0001] The invention relates to a middle chute, in particular to an adjustable middle chute used for coal transportation in the coal seam mining process. Background technique [0002] The middle trough of the scraper conveyor used in the traditional comprehensive mechanical coal mining face adopts a split structure, and its coal retaining plate, coal shoveling plate and the middle connecting trough are connected together by bolts, and the middle connecting trough includes a middle plate and two sections of trough The two sections of groove sides are welded into one body through the middle plate group. [0003] In the prior art, a part slightly lower than the bottom plane of the middle chute is usually designed at the shovel tip of the coal shoveling plate, so as to ensure that there is a downward force when the middle chute moves forward, so that the middle chute is always along the ground. Advance and shovel and load coal from the ground into the tank. Siz...

AI Technical Summary

Problems solved by technology

Size The size of the coal shoveling device of the scraper conveyor directly affects the effect of shoveling coal. If the coal shoveling device of the size scraper conveyor is too small, the downward force of the middle chute is small, and the middle chute will "drift" upward when it moves forward. Make it off the ground, there is a large amount of coal that cannot be loaded, and will affect the working status of the entire equipment

If the coal shoveling device of the scraper conveyor is too large, the downward component force will be large, and the middle chute will go deeper and deeper underground, increasing the resistance of advancement and affecting normal production

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