Research and application of the conveyor self-advancing tail without repeated support

Abstract

Aiming at the current situation of conveyor self-advancing tail process of the traditional heading face in the coal mine, such as “retreating machine-manually pulling--manually adjusting the deviation-ground anchoring”, in order to realize efficient and rapid excavation, a new type of conveyor self-advancing tail used in mining face suitable for crushing roof was developed. The design of the endless force, the stepping distance, the conveying capacity, the adapting belt speed and the idler type of the designed conveyor self-advancing tail were carried out. Based on the virtual prototype technology the intermediate frame of the tail and the dynamic frame were established and the model’s structural strength were checked. The correctness of the design of the whole machine was verified by the actual application of the tail in the coal mine. The successful development of conveyor self-advancing tail without repeated struts effectively solves the problem that the tail of the coal mining face can not be self-moving or needs to be support self-moving, which greatly improves the efficiency of the tail movement of the driving face. At the same time, it also provides the possibility to upgrade the automation of the face.