The utility model relates to a single hydraulic prop shoe for a mine, which belongs to a coal mine support accessory. The pole shoes currently used are made of wood or metal. It has been shown that there are many defects in the use of wooden pole shoes. Because the wood itself has the weakness of low compressive strength in the main direction of parallel fibers, it is difficult to meet the requirements of the working resistance of the hydraulic acrow props, and it cannot be well Solve the problem of drilling the bottom of the suspension hydraulic prop, and the metal single hydraulic prop shoe is heavy, the operator is labor-intensive, and the use of metal, the cost is also high.
At present, it is popular on the market to use antistatic agent to modify MC nylon for casting, or to use antistatic deep layer or to use antistatic film to coat the outer surface of the suspension hydraulic prop shoe column cap. Coal working face, single hydraulic prop and friction prop. Nylon Pillar Boots is an anti-static light-weight pillar cap composed of a supporting surface, supporting ribs and inlaid grooves. This product is used for soft-sole mining face, involving mine support products, especially suspension hydraulic prop shoes with special soft-sole conditions.
The key technical parameters of this type of hydraulic acrow props shoe column boots are the choice of nylon column insole bottom, increase the bearing area of the bottom plate, and improve the support strength. The column shoe has been tested by the rock mechanics and rock formation control center, and its compressive capacity is 535kN-560kN, and its shear strength is 562kN. Its load-carrying capacity is 1.8 times the working resistance of a hydraulic acrow props, which is higher than the industry standard.
The modification of nylon also improves the water absorption rate of nylon, improves the dimensional stability of the product, and improves the flame retardancy of nylon to meet the requirements of underground operations; improves the mechanical strength of nylon to achieve the strength of metal materials, thereby replacing metal ; Improve the low temperature resistance of nylon and enhance the environmental adaptability of nylon; improve the wear resistance of nylon to adapt to high wear resistance fields; increase the antistatic properties of nylon to meet the requirements of mining and mechanical applications; reduce the cost of nylon , improve product competitiveness.
