Double rope climbing hoist

Abstract

The invention discloses a climbing elevator. The climbing elevator is characterized in that ropes are respectively wound on two rope winding mechanisms, the two rope winding mechanisms are connected with a driving mechanism by overrunning clutches, are pulled by the ropes along climbing directions and can rotate beyond the driving mechanism, the ropes can be wound in type-a rope winding modes and type-s rope winding modes, and the rope winding mechanisms can be pulled by gravity pulling and traction pulling structures. The climbing elevator has the advantages that asynchronous elastic extension of the double ropes of the elevator with double rope systems capable of independently rotating can be automatically adjusted, and loads can be reasonably shared by the double ropes during work; equipment defects can be timely found out during running; the climbing elevator has double protection functions, accordingly, external safety devices can be completely replaced, and carrier structures can be simplified; the optional system still can continue working when the other system fails, and accordingly the safety performance of the climbing elevator can be obviously improved; the climbing elevator can be widely applied to the fields of high-place operation hanging baskets, window cleaning machines, rescue lifters of high-rise buildings and the like.

Description

technical field [0001] The invention relates to the field of lifting equipment, in particular to a climbing hoist used for a hanging basket for high-altitude operations, a window cleaning machine or a high-rise rescue lifter. Background technique [0002] The climbing hoist uses the friction between the sheave or winch and the rope as the lifting force. When working, one end of the rope is anchored to a high place and fixed, and the sheave is driven to wind the rope to make the hoist climb or descend along the rope. Drive the load for lifting operations. [0003] Climbing hoists have been widely used in the fields of hanging baskets for high-altitude operations, window cleaning machines, material hoists, and high-rise rescue lifters. The existing technologies all use single-rope climbing methods, such as CN101972521 large-stroke portable rescue lifter, working When the winch and the clamping wheel are wound on a rope, the friction force is used to realize up and down liftin...

AI Technical Summary

Problems solved by technology

[0004] However, this traditional technology of designing lifting and safety as two independent systems has certain disadvantages. First, the fatigue and wear of the two systems are uneven, which affects the service life of equipment or ropes; second, the safety system is in a standby state for a long time , its performance inspection, especially the regular calibration of the safety lock, is easy to be ignored by people, and the phenomenon of missed inspection or even failure of the device is often in vain. When the defect is found, it is often after the accident, and it is often regrettable; the third is to upgrade the system. Once a fault occurs, the moment of gravity transfer will have a harmful impact on the safety system, which may constitute damage to the safety device; the above-mentioned disadvantages caused by the high-altitude fall accidents of the hanging basket are not uncommon.

[0005] Adopting the double-rope climbing method is an effective way to improve the safety performance of the climbing hoist. CN2628506 discloses a double-rope lifting device, and CN202609847 also discloses a double-rope synchronous hoist for window cleaning machines. The common point is that There are two wire rope grooves on one sheave, and the sheave can be driven to roll the double ropes at the same time, which can avoid the hanging basket falling accident caused by one of the wire ropes breaking. It is easy to appear that one rope is stressed while the other rope is slack, and its cumulative effect will affect the normal operation of the hoist

Even the disorderly entanglement of the ropes caused the hoist to fail to work, so the hoist with double groove sheaves has not been practically applied.

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