When the hand winch is used, it is mainly used for its high versatility, light weight, large size, compact structure and small volume. The manual winch is easy to transfer and is widely used in mines, docks, hydraulic engineering, forestry, etc. Building materials such as lifting or flatwing can also be used as an auxiliary equipment for modern electronically controlled automatic operation lines.
The hand winch can be used alone, and to a certain extent, it can be used as a component in machinery such as lifting, road construction and mine lifting. It is widely used due to its simple operation, large amount of rope winding and convenient displacement. The main technical indicators of the winch are rated load, supporting load, rope speed, capacity and so on.
Manual winches must be set to a certain extent according to their specifications. The net height of the specifications is not less than 2.0 meters, the net width is 2.4 meters, and the net depth is 2.0 meters. According to the actual situation of the roadway, the laneway along the airway shall not be affected by the principle of safe operation.
Manual winches should be excavated as much as possible in the construction. According to different support types of the roadway, wooden sheds or I-beam sheds can be used. When the roof is intact, the anchor net is used for support. When the roof is broken, the roof support is used. When the winch is supported by the support, it should be carried out from the outside to the inside. The shed and the shed should be connected together by a struts or tie rods. Waist, help to take the back.