The selection or manufacturing of a winch should be based on the requirements of parameters such as lifting capacity, lifting height, and lifting speed in the quick solution. The ratio of the diameter of the drum to the diameter of the steel wire rope should not be less than 30. Reversible winches should be used for lifting machines, and conflicting winches should not be used for elevated lifting machines. The lifting machine powered by a resistance type winch should have anti slip groove devices on its pulleys.
The distance between the flange at both ends of the drum and the outermost steel wire rope partition should not be less than twice the diameter of the steel wire rope. The edge of the drum must be equipped with protective measures to prevent the steel wire rope from coming out. The pulley should be supported by a rotating shaft. The pulley system and frame should be rigidly connected, and it is strictly prohibited to use flexible connections such as steel wire ropes and lead wires, or to use open pull plate pulleys.
3. When choosing a winch, one should be meticulous: the winch should comply with the current national standard "Construction of Cranes" regulations. The ratio of pulley diameter to wire rope diameter of the pulley system should not be less than 25 for low frame hoists and 30 for high frame hoists.
4. When using rope clamps for the movement of the end of the steel wire rope, the number of clamps should be no less than 3 and the spacing should not be less than 6 times the diameter of the steel wire rope. The rope clamp saddle should be placed on one side of the stressed rope, and the rope clamp should not be interwoven in both directions.
5. Steel wire ropes shall not be extended or used for promotion. The end and the drum should be firmly clamped with a clamping device, and the drum should be able to be arranged in a sequential and uniform manner. When the basket is in the lowest position of the task, the steel wire rope on the drum should be no less than 3 turns.
Introduction:
1. The driving power is small, and it accepts inflow feeding, induction unloading, and large capacity hopper aggregation deployment. There is almost no return or excavation phenomenon during material lifting, so the ineffective power is low.
2. The promotion scope is wide, and this type of promotion machine has fewer requirements for the types and characteristics of materials. It can not only promote materials that are usually in powder or small particle form, but also promote materials with high grinding properties. It has good sealing and less pollution.
3. Good operational reliability, advanced planning principles and processing essentials ensure the reliability of the entire machine's operation, with no downtime exceeding 20000 hours. The promotion height is high. The promotion machine runs smoothly, so it can reach a higher promotion height.
4. Long service life, the feeding of the material lifting machine adopts an inflow type, without the need for digging with a bucket, and there is little squeezing and collision between the materials. This machine ensures that materials are less scattered during feeding and unloading during planning, eliminating machine wear and tear.
Article from:
Guangdong bucket elevator www.zs-chsb.com