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我国于1987年引进两台美国JOY公司生产的3LS无链直流牵引采煤机,都在我矿组装验收。该机由以下十大部分组成:左、右牵引部(包括左、右牵引直流电机);左、右截割部(包括左、右摇臂滚筒和左、右截割电机);电控箱;辅助液压系统(包括液压电机);左、右翻转挡煤板装置(包括液压马达);左、右调高千斤顶装置。采煤机的主要技术特征如下: 采高范围:1.8—3.6m
China in 1987 introduced two United States JOY’s 3LS chainless DC traction shearer, all in my mine assembly acceptance. The machine consists of the following ten parts: left and right traction (including left and right traction DC motor); left and right cutting part (including left and right roller arm and left and right cutting motor); electric control box ; Auxiliary hydraulic system (including hydraulic motor); left and right Flip baffle device (including hydraulic motor); left and right up jack device. Shearer’s main technical features are as follows: Mining high range: 1.8-3.6m