Multi-rope friction hoist is a kind of equipment widely used in mining, material lifting and other fields. The following is a detailed introduction to the multi-rope friction hoist:
1. Definition and working principle：
Multi-rope friction hoists efficiently lift and lower loads using friction between steel ropes and the drive wheel. Moreover, they are widely used in coal, non-ferrous, and ferrous metal mines. Additionally, they serve non-metallic and chemical mining operations effectively. These hoists are ideal for both vertical and inclined shaft systems. Furthermore, they ensure safe and reliable transportation of materials and personnel.
First, the multi-rope friction hoist operates on the flexible friction transmission principle. Specifically, steel ropes rest on the drive wheel’s friction linings. Meanwhile, hoisting containers hang from both rope ends. Additionally, balanced tail ropes ensure system equilibrium. During operation, the motor rotates the drive wheel. As a result, friction between the linings and ropes drives movement. Consequently, the hoisting containers are lifted or lowered efficiently.
2. Composition and classification
The multi-rope friction hoist consists of several key components. Firstly, the reducer controls operational speed efficiently. Next, the drive wheel assembly is the core power transmission unit. Additionally, the engine provides reliable driving force. Moreover, the main shaft assembly supports rotational movement smoothly. Then, the rope groove adjustment device ensures proper wire rope alignment. Furthermore, the depth indicator auto-zeroing device enhances positioning accuracy. Finally, the tail rope suspension device balances the system effectively. Specifically, the drive wheel assembly delivers power through friction between wires and liners. Thus, it becomes the hoist’s critical lifting component.
Based on the arrangement, multi-rope friction hoists divide into tower-mounted and ground-mounted types. Typically, tower-mounted hoists install on headframes. In contrast, ground-mounted hoists position directly near the shaft on the ground.
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