Scraper conveyer and fully-mechanized coal mining device

Abstract

The invention provides a scraper conveyer and a fully-mechanized coal mining device. The scraper conveyer comprises at least two middle troughs, and the outer side of a shoveling plate ledge of each middle trough is provided with pin rails used for being matched with traveling gear teeth of a coal mining machine. Each pin rail comprises pin teeth and a pin tooth base located between the corresponding pin teeth and the corresponding shoveling plate ledge. The opposite end faces of the corresponding pin tooth bases of two adjacent middle troughs make contact with each other, and a rotation center is provided for relative rotation between two adjacent middle troughs through the end faces, making contact with each other, of the corresponding pin tooth base. The scraper conveyer can effectively improve the situation that the meshing pitch of the pin teeth of two adjacent middle troughs changes greatly, and the service life of the pin rails and the service life of the traveling gear teeth of the coal mining machine are prolonged.

Description

technical field [0001] The present invention relates to mining conveying equipment, more specifically, to a scraper conveyor and fully mechanized mining equipment. Background technique [0002] According to the coal seam thickness division of coal mines in my country, the coal seam with a thickness of 0.8m-1.3m is a thin coal seam, and the coal seam with a thickness below 0.8m is an extremely thin coal seam. Thin coal seams and extremely thin coal seams are difficult-to-mining coal seams. and production efficiency, the design of fully mechanized mining equipment with a low machine face height and a large coal throughput has become the key to solving the mining problem of difficult coal seams. [0003] Fully mechanized mining equipment includes scraper conveyor and coal shearer. The scraper conveyor includes multiple middle troughs that are sequentially connected by connecting rings. and the bottom plate are respectively connected between the side of the baffle plate and the ...

AI Technical Summary

Problems solved by technology

Because the contact surface between the shearer and the coal seam (also known as the working surface) has fluctuations, and the ground laid by the scraper conveyor is not completely flat, the shearer is cutting the coal seam, especially when walking to the adjacent two When the butt joint of the grooves in the middle of the joints, it will cause relative left and right deflection (deflection in the horizontal direction) or deflection in the vertical direction (deflection in the vertical direction) between the two adjacent middle grooves, and a gap will be generated, resulting in the gap between the two adjacent middle grooves. The pin tooth pitch between the grooves varies greatly, resulting in severe meshing wear of the traction gear teeth of the coal mining machine

[0005] At present, in order to ensure the pin-tooth meshing pitch between the middle grooves of two adjacent sections, the end faces of the sides of the baffle plates or the sides of the blades facing each other in the middle grooves of the adjacent two sections are in close contact with each other. The end face of the groove side of the baffle plate or the end face of the groove side of the shovel plate provides a technical solution for the relative rotation between the two adjacent middle grooves. Big situation, but the improvement effect is not obvious

Images