Two-to-one suspension ratio construction hoist arranged on elevator shaft traction machine and operation method thereof

Abstract

The invention relates to a two-to-one suspension ratio construction hoist arranged on an elevator shaft traction machine. The two-to-one suspension ratio construction hoist comprises a top beam, the traction machine, a steel wire rope, a counterweight and a car; the top beam comprises a main beam which is horizontally arranged and a telescopic beam which is inserted in the main beam in a left-right sliding manner; the traction machine is arranged in the middle of the main beam; an upper rope pressing wheel and a lower rope guiding wheel are rotatably arranged on the main beam; the upper rope pressing wheel is positioned at the upper part of the main beam and is positioned on the left side of the traction machine; the lower rope guiding wheel is positioned at the lower part of the main beamand is positioned below the upper rope pressing wheel; a car fixing end and a counterweight fixing end are arranged at the right upper part and the left upper part of the main beam; a car moving pulley is arranged at the top of the car; a counterweight moving pulley is arranged at the upper end of the counterweight; and one end of the steel wire rope is fixed to the counterweight fixing end. Thetwo-to-one suspension ratio construction hoist arranged on the elevator shaft traction machine is simple, safe, fast, low-cost, energy-saving, environment-friendly and efficient. The invention also provides an operation method of the construction hoist. The construction hoist and the operation method have high practicability, are good and are worthy of popularization.

Description

technical field [0001] The invention belongs to the technical field of building construction machinery and equipment, and in particular relates to a construction hoist with a two-to-one suspension ratio above the traction of an elevator shaft and an operating method thereof. Background technique [0002] In the construction of high-rise buildings, construction hoists for elevator shafts are usually used. One is that the traction machine is set on the ground, and the suspension ratio is 1:1. :1 There are many deficiencies in the elevator. First, it is large in size and heavy in weight; , which brings redundant power consumption to the elevator and also buryes safety hazards. Since the 800kg steel wire ropes used for subsequent heightening are piled up on the top of the car, blocking the safety escape window on the top of the car, once an accident occurs, the car The people in the car will not be able to escape, and the consequences will be unimaginable. The steel wire rope u...

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Problems solved by technology

[0002] In the construction of high-rise buildings, construction hoists for elevator shafts are usually used. One is that the traction machine is set on the ground, and the suspension ratio is 1:1. :1 There are many deficiencies in the elevator. First, it is large in size and heavy in weight; , which brings redundant power consumption to the elevator and also buryes safety hazards. Since the 800kg steel wire ropes used for subsequent heightening are piled up on the top of the car, blocking the safety escape window on the top of the car, once an accident occurs, the car The people in the car will not be able to escape, and the consequences will be unimaginable. The steel wire rope used for subsequent heightening is placed on the top of the car, and the design of the 800kg steel wire rope when the elevator is working does not meet the national standards and industry requirements. It also needs to pass 7 guide wheels. In order to guide the steel wire rope to the car and the counterweight, the amount of steel wire rope is increased. During the use of the in-line integral beam, the installation and later heightening of the in-line integral beam have brought a lot of inconvenience due to the excessive length of the beam body. 1. During the heightening operation, the beam body should be hung obliquely and inserted into the reserved hole. This kind of oblique hanging is not convenient and unsafe. It is not connected with the Tianliang tightly and unstable. The 1500mm horse stool weighs 80kg and has to be carried repeatedly by manpower. The speed is too slow, which not only wastes manpower and material resources, but also cannot guarantee the construction period.

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