Coal mine tunnel digging machine

Abstract

A coal mine roadway excavator has a large arm and a small arm. The rear end of the large arm is hinged on the bottom end of the support. The rear part of the large arm is equipped with first and second hydraulic cylinders for controlling its inclination. The front part is installed with the third and fourth hydraulic cylinders for pushing and pulling the arm up and down. The driving device is composed of an explosion-proof motor and a reducer. The first guide shaft passes through the first universal coupling and the output end of the reducer. connection, the first guide bush is connected with the second guide bush through the second universal joint, the second guide shaft is connected with the third universal joint, the third universal joint is connected with the fourth universal joint The shaft is connected, the fourth universal coupling is connected with the upper end of the transmission shaft installed in the inner cavity of the small arm, and the lower end of the transmission shaft is fixedly connected with the crushing head. The invention integrates crushing and coal raking, and is specially used for excavating tunnels in coal mines, and can also be used in coal mines with complicated geological conditions and unstable coal seams.

Description

technical field [0001] The present invention relates to excavation equipment used in coal mines. Background technique [0002] The traditional methods of excavating coal mine roadways are drilling, blasting, manual coal digging or rock raking machine raking coal, which is labor-intensive, time-consuming, labor-intensive, consumes a lot of materials, and the excavation speed is slow. Gas outburst and other accidents. [0003] At present, some large coal mines use special roadway excavation equipment to replace manual coal mining, but these roadway excavation equipment are bulky and require a lot of accommodation space and work space, which is not suitable for small and medium-sized coal mines with narrow roadways. In addition, the structure is complicated and it is not easy to disassemble. Reorganization cannot meet the needs of roadway transportation and transfer face. For mines with unstable coal seams, in order to avoid the occurrence of landslide accidents, the roadways...

AI Technical Summary

Problems solved by technology

[0002] The traditional methods of excavating coal mine roadways are drilling, blasting, manual coal digging or rock raking machine raking coal, which is labor-intensive, time-consuming, labor-intensive, consumes a lot of materials, and the excavation speed is slow. Accidents such as gas outburst

[0003] At present, some large coal mines use special roadway excavation equipment to replace manual coal mining, but these roadway excavation equipment are bulky and require a lot of accommodation space and work space, which is not suitable for small and medium-sized coal mines with narrow roadways. In addition, the structure is complicated and it is not easy to disassemble. Reorganization, unable to meet the needs of roadway transportation and transfer face

For mines with unstable coal seams, in order to avoid landslide accidents, the roadways cannot be excavated very spaciously. Therefore, these existing large-scale excavation equipment cannot be used in mine roadway construction with unstable coal seams.

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