回柱绞车

回柱绞车主要供煤矿井下回柱放顶之用。特别适用于薄煤层和急倾斜煤层采煤工作面，亦可用来拖运重物和调度车辆。
绞车配有隔爆电气设备，可用于有煤尘及瓦斯的矿井。

Back-pillar winch is mainly used for back-pillar roof caving in coal mine. It is especially suitable for thin coal seam and steeply inclined coal seam mining face. It can also be used for hauling
heavy objects and dispatching vehicles.Winches are equipped with flameproof electrical equipment, which can be used in mines with coal dust and gas.

回柱绞车可用于环境温度-10°C—+40°C，相对湿度不超过95%（+25°c），周围空气中的甲烷丶煤层和硫化氢丶
二氧化碳等不超过《煤矿安全规程》中所规定的安全含量的矿井中；工作制为低速重载非连续型。

Pillar winch can be used for ambient temperature - 10 C -+40 C, relative humidity not exceeding 95% (+25 c), methane, coal seam and hydrogen sulfide in ambient air.Carbon dioxide and
other coal mines which do not exceed the safety content stipulated in the "Coal Mine Safety Regulations". The working system is low-speed, heavy-duty and discontinuous.

电动机安装在底座上通过联轴器与蜗轮减速机联接，动力通过一对齿轮传动给圆弧面蜗杆、蜗轮，由蜗轮轴上的小齿轮经中间过桥齿轮传动大齿轮带动卷筒，卷引钢丝绳进行工作。