前言 保证采煤机在倾斜和急倾斜煤层中下行采煤时不致与牵引钢绳脱落,已成为安全生产和倾斜煤层工作面高效率采煤的基本要求。现在,井下使用的采煤机重达几吨,不少的还超过十几吨,而且又在40°—60°,甚至倾角更大的工作面上采煤。安全绞车则能保证采煤机的安全。 波兰设计和批量生产的新型安全自动绞车赢得了使用者的好评,博得国外一些商号和客户的关注。现在已有KBH-2M型半自 Foreword To ensure that the coal shearer does not fall off from the traction ropes when descending the coal in inclined and steep coal seams, it has become the basic requirement for efficient coal mining in safe production and inclined coal seam workfaces. Now, the shearer used in the mine weighs a few tons, many more than a dozen tons, but also in the 40 ° -60 °, or even more inclined face mining coal. Safety winch is to ensure the safety of shearer. The new safety automatic winch designed and produced in Poland won the praise of users and won the attention of some foreign firms and customers. Now KBH-2M semi-self already