Hydraulic control system for coal pickup manipulator and working method

Abstract

The invention discloses a hydraulic control system for a coal pickup manipulator and a working method. The hydraulic control system for the coal pickup manipulator mainly consists of a main oil circuit, a travelling hydraulic loop, a hydraulic loop for opening and closing a pickup shovel, a hydraulic loop for stretching a scissors fork, a branch line oil circuit, a hydraulic loop for pickup shovel pitching and an oil return circuit, wherein all components are used for controlling the travelling of the coal pickup manipulator and the coal pickup work. According to the hydraulic control system for the coal pickup manipulator, which is disclosed by the invention, an operator always can use any comfortable gesture no matter what relative position is formed between a coal pile and the manipulator within the working range of the coal pickup manipulator, scattered coal can be picked up to a scraper conveyer by a small quantity of simple operation action via the operation handle of each manual reversing valve of a hydraulic system, so that the labor intensity of workers can be greatly lightened, and the working efficiency is improved.

Description

technical field [0001] The invention relates to a coal mining machine, in particular to a coal raking manipulator used in a shallow coal seam. Background technique [0002] At present, at the shallow coal seam mining site, the loose coal from blasting is usually transported to the scraper conveyor by manual coal mining, and then the coal is transported away by the scraper conveyor. The shallow coal seam is about 1 meter. Due to the short working space, the workers can only work half-squatting, the labor intensity is high, the work efficiency is low, and it is not conducive to production. For this reason, the applicant discloses a coal-hugging manipulator for shallow coal seams. It mainly consists of a car body and a car body. The walking device on the body, the arm and shovel, the arm and shovel turning device, the telescopic arm device, and the pitching device; the actions of the above devices are realized by the pitching cylinder mechanism, the scissors telescopic cylinde...

AI Technical Summary

Problems solved by technology

Due to the short working space, the workers can only work half-squatting, the labor intensity is high, the work efficiency is low, and it is not conducive to production. For this reason, the applicant discloses a coal-hugging manipulator for shallow coal seams. It mainly consists of a car body and a car body. The walking device on the body, the arm and shovel, the arm and shovel turning device, the telescopic arm device, and the pitching device; the actions of the above devices are realized by the pitching cylinder mechanism, the scissors telescopic cylinder mechanism, the arm and shovel opening and closing cylinder mechanism, and the hydraulic travel motor. , is controlled by the hydraulic control system, and the hydraulic control system supporting the coal raking manipulator has not yet been disclosed

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