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西德采矿研究所在试验场对拖钩刨和滑行刨作了试验以后,研究了滑行——拖钩刨,同时也对后者作了试验,得出评价如下: 拖钩刨的特点是:刨链位在采空侧;导链架无门式支撑架,通过座板,刨煤机具有较宽的支承基础;对所有煤层条件,一般的使用性能都较好。但刨体较高时,刨削水平不准确;当底板不好和粘顶煤条件下,刨煤机的煤层水平控制效果差;不管煤的硬度如何,由于刨深不定量,以及由于刨头的后让,使效率损失很大,所以只能得到一般的回采效率。只有当围
After testing the hook and planing planing at the test site, the West German Institute of Mining conducted a study of the planing and hogging planing, and also tested the latter. The evaluation was as follows: The hook planing was characterized by: The planing chain is located on the goaf side. The guide chain has no gantry support frame, and the plow has a wide support base through the seat plate. For all coal seam conditions, the general use performance is good. However, when the plow body is high, the level of planing is inaccurate; when the floor is not good and the top coal is stuck, the plow level control effect is poor; regardless of the hardness of the coal, due to the unequal planing depth, After making so much loss of efficiency, so can only get the general efficiency of the recovery. Only when Wai