Mounting structure for counterweight housings and counterweight wheels of goods elevator

Abstract

The invention provides a mounting structure for the counterweight housings and the counterweight wheels of a goods elevator. A single counterweight housing comprises two counterweight side beams vertically braced, wherein upper side plates are mounted at the tops of the counterweight side beams, lower side plates are mounted at the lower parts of the counterweight side beams, a counterweight block pressing plate is arranged in the middle of the counterweight housing, and a plurality of counterweight blocks closely arranged are mounted at the lower part of the counterweight block pressing plate. One pair of counterweight housings is mounted in parallel, the adjacent two counterweight side beams in the middles of the counterweight housings are connected through a connecting plate, first counterweight wheels are mounted on the first upper side plates, and second counterweight wheels are mounted on the second upper side plates. A machine room is arranged at the upper parts of the counterweight housings, a guide pulley is arranged in the machine room, and a tractor traction wheel is arranged on one side of the guide pulley. The mounting structure further comprises a rope, the rope is wound to a rope fixing end in the machine room from the tractor traction wheel sequentially through the second counterweight wheels, the guide pulley and the first counterweight wheels. A traction ratio of 4:1 is adopted. Compared with the prior art, the traction ratio is improved by two times, and the work efficiency is high.

Description

technical field [0001] The invention relates to the technical field of freight elevators, in particular to a mounting structure for counterweight frames and counterweight wheels of a freight elevator. Background technique [0002] The freight elevator counterweight is a device to balance the weight of the freight elevator car. Usually, the freight elevator is equipped with a certain counterweight to balance the weight of the freight elevator and the load, so as to reduce the burden on the driving equipment. The frame carrying this counterweight is the counterweight frame. [0003] Traction counterweight devices are often used in the prior art, and profiles are generally used as the counterweight frame. In a 2-3 ton freight elevator, when the load of the freight elevator increases, if it is applied to a 5 ton freight elevator, if the counterweight frame in the prior art is still used, it will not be able to be used normally due to the limitation of the height of the top floo...

AI Technical Summary

Problems solved by technology

[0003] Traction counterweight devices are often used in the prior art, and profiles are generally used as the counterweight frame. In a 2-3 ton freight elevator, when the load of the freight elevator increases, if it is applied to a 5 ton freight elevator, if the counterweight frame in the prior art is still used, it will not be able to be used normally due to the limitation of the height of the top floor. Counterweight rail gauge to meet its heavy load applications

However, this method will increase the length of the counterweight frame, which will also increase the mass of the single counterweight frame, which is troublesome to install and manufacture, and will also bring troubles to the debugging balance coefficient and increase the cost.

In addition, due to the limitation of traction machine speed and power, the research and development of large-ton freight elevators is limited

[0004] At present, in order to solve the above problems, two counterweight frames are installed in combination, and a counterweight wheel is installed on the top of it. The counterweight wheel is connected with the traction sheave of the traction machine through a rope. The traction ratio, also known as the rope winding ratio, refers to the ratio of the peripheral speed of the traction sheave (wire rope movement speed) to the speed of the car, and its working efficiency is low.

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