The invention relates to the technical field of hoisting, in particular to a pulley device, a rope threading method of the pulley device and operation machinery, the pulley device comprises a movable pulley block, a fixed pulley block and a steel wire rope, the movable pulley block comprises a movable pulley shaft and a plurality of movable pulleys, and the movable pulley shafts are sequentially and rotatably sleeved with the movable pulleys; the fixed pulley block comprises a fixed pulley shaft and a plurality of fixed pulleys, and the fixed pulleys are sequentially and rotatably arranged on the fixed pulley shaft in a sleeving mode; the rope lifting end of the steel wire rope is wound around the fixed pulley close to the middle position, and the middle section of the steel wire rope is wound around the corresponding fixed pulley and the movable pulley. The rope rising end of the steel wire rope is wound around one fixed pulley close to the middle position, and the rope collecting end of the steel wire rope is wound around the other fixed pulley close to the middle position, so that the force arms of the rope inlet side and the rope outlet side are reduced, the skew degree of the movable pulley shaft reaches the minimum value, and lateral swing of the movable pulley block in the working process is effectively reduced; the side load of the equipment is reduced, and the safety of the equipment is improved.
本发明涉及起重技术领域,尤其涉及一种滑轮装置、滑轮装置的穿绳方法及作业机械,滑轮装置包括动滑轮组、定滑轮组和钢丝绳,动滑轮组包括动滑轮轴和多个动滑轮,多个动滑轮依次可转动地套设于动滑轮轴;定滑轮组包括定滑轮轴和多个定滑轮,多个定滑轮依次可转动地套设于定滑轮轴;钢丝绳的起绳端绕设于靠近中间位置的一个定滑轮,钢丝绳的中间段绕设于对应的定滑轮和动滑轮。通过将钢丝绳的起绳端绕设于靠近中间位置的一个定滑轮,并将钢丝绳的收绳端绕设于靠近中间位置的另一个定滑轮,使得进绳侧与出绳侧的力臂减小,动滑轮轴的歪斜程度达到最小值,有效减小动滑轮组在工作过程中的侧向摆动,减少了设备的侧载,提高了设备的安全性。
Pulley device, rope threading method of pulley device and working machine
滑轮装置、滑轮装置的穿绳方法及作业机械
2024-05-17
Patent
Electronic Resource
Chinese
IPC: | B66D Haspeln , CAPSTANS |
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