【摘要】 本文介绍了各类铺联网支架的研制及性能特点,并指出这类支架设计中的几个问题.更多还原

【Abstract】 This paper hasa brief development introduction and specifications of several net laying and linking powered support in China. Some considerations should be given to a design of the powered support, 1. Selection of suitable type and technical data for the support, 2. Net laying and linking method and arrangement. Comparion the advantages and disadvantages of the net laying and linking methods. 3. Connection of the net and the form of a net. Generally, in a design of a net laying and linking powered support, except to meet the requirements of stratum pressures, it should give a special consideration to a reliability of directional guidance and a strict control of spacing distance to keep the quality of net laying and linking. The net laying and linking system should meet the requirement of underground mining. The system also should have a space for hand linking in case of the system in accident.更多还原