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| Design improvement of claw reducer of coal mine roadheader |
| Wang Zhengting, Yao Hongliang, Qin Jianguo |
| Jincheng Anthracite Mining Group Company Sihe Mine, Jincheng 048205, China |
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Abstract Based on roadheader was often jammed by large blocks of coal, gangue or iron, advantages of the torque shaft of shearer for easy replacement were learned to use torque shaft instead of screw in the claw. Through calculation of the torque of claw and structural optimization design of torque shaft, the time of electrical and mechanical accident was greatly reduced, which greatly improved reliability of roadheader operation.
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