Thin coal seam shovel plate type carrier adopting front pitching bridge and multi-connecting-rod linkage

Abstract

The invention belongs to the technical field of coal mine underground transport vehicles, and particularly relates to a thin coal seam shovel plate type carrier adopting a front pitching bridge and multi-connecting-rod linkage. The thin coal seam shovel plate type carrier comprises a pitching frame, a shovel plate, a front frame, a rear frame, a wheel drive unit, a multi-connecting-rod mechanism, a pitching oil cylinder and a small shovel oil cylinder; the front pitching bridge is formed by the pitching frame and the wheel drive unit; the multi-connecting-rod mechanism is connected to the bottom of the front pitching bridge, linkage changes of the shoveling angle of the shovel plate are achieved, and therefore stress of the small shovel oil cylinder is reduced during shoveling work, and the shoveling force of the shovel plate is increased during transport work; the rear end of the pitching oil cylinder is in pin joint with the front frame, and the front end of the pitching oil cylinder is in pin joint with the pitching frame; the rear end of the small shovel oil cylinder is in pin joint with the front frame; the multi-connecting-rod mechanism is connected to the bottom of the pitching frame and is in pin joint with the small shovel oil cylinder and the shovel plate; and the pitching oil cylinder drives the multi-connecting-rod mechanism to act while driving the pitching frame to rotate. According to the thin coal seam shovel plate type carrier, stress of the small shovel oil cylinder is reduced during shoveling work, and the shoveling force of the shovel plate is increased during transport work.

Description

technical field [0001] The invention belongs to the technical field of underground coal mine transport vehicles, and in particular relates to a thin coal seam shovel type transport vehicle which adopts a front pitch bridge and multi-link linkage. Background technique [0002] With the continuous emergence of thin coal seam fully mechanized mining faces, higher requirements are put forward for the downsizing of underground transportation vehicles. When the existing shovel truck transports the thin coal seam hydraulic support, there is serious interference between the hydraulic support and the shovel truck working mechanism, resulting in Low-slung equipment such as thin coal seam hydraulic supports cannot be transported by shovel-type trucks. Patent 201010537074.0 discloses a battery support truck. The shovel mechanism is connected to the front frame through the left and right push cylinders. The shovel mechanism is equipped with a lifting cylinder, and the rear of the shovel ...

AI Technical Summary

Problems solved by technology

The disadvantage is that the height of the scraping mechanism is too high, the thin coal seam hydraulic support interferes with the scraping mechanism and cannot be loaded, the driver is blocked by the working mechanism when observing the scraping, and the shoveling angle and the height of the scraping are controlled separately, and linkage cannot be realized. The operation is more complicated. In addition, all the working cylinders are exposed near the shovel plate, and all of them adopt the action of the rod chamber, so the failure rate of the cylinder is relatively high.

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