High-speed elevator wire rope compensation and tensioning device

Abstract

The invention discloses a steel wire rope compensation and tension device of a high-speed elevator. The steel wire rope compensation and tension device comprises a tension wheel set mechanism, a counterweight fixed to the tension wheel set mechanism, a guiding device, a compensation steel wire rope, and a guiding wheel fixed to the lower portion of a counterweight frame. The tension wheel set mechanism and the counterweight fixed to the tension wheel set mechanism are fixed to a bottom pit through the guiding device. The compensation steel wire rope comprises a plurality of steel wire rope bodies. One end of each steel wire rope body is hung at the bottom of an elevator car, and the other end of the steel wire rope body moves downwards to be wound on one tension wheel set, then moves upwards to be wound on the guiding wheel on the lower portion of the counterweight frame, moves downwards to be wound on the other tension wheel set and finally moves upwards to be hung at the bottom of the elevator car. In addition, hanging points, on the lateral portions of the elevator car, of the compensation steel wire rope are symmetrically arranged relative to the central connecting line of guiding rails of the elevator car. The compensation steel wire rope is tensioned through the tension wheel set mechanism and the counterweight fixed to the tension wheel set mechanism. The steel wire rope compensation and tension device has the advantages that the same compensation steel wire rope is wound on the two tension wheel sets, and the two ends of the compensation steel wire rope are connected with the bottom of the elevator car; and the tensile forces of the compensation steel wire rope bodies are equal, the effect that the same tensile force is generated to the elevator car is guaranteed, and thus the elevator can operate stably.

Description

technical field [0001] The invention belongs to the field of elevator manufacturing, in particular to a high-speed elevator wire rope compensation and tensioning device. Background technique [0002] In the design of high-speed elevators, when designing the compensation rope system, it is necessary to consider the suspension position of the compensation rope on the car side and the counterweight side. Since the situation on the counterweight side is similar to that of the car side, only the car side is used as an example for illustration. ;The suspension point of the compensation rope on the side of the car is generally arranged on the center connection line of the car guide rail and located at the center line of the car. Excessive force. Especially when the elevator is lifted higher, because the weight of the compensation rope itself is relatively large, the benefits of doing so are particularly obvious. However, since the suspension position of the compensation rope occup...

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Problems solved by technology

In the figure, the compensation rope is arranged with a certain size away from the center line of the car guide rail. The eccentric load force generated by the compensation rope is balanced by the weight of the accompanying cable, which requires accurate calculation and the unit mass of the accompanying cable. Matching also increases the complexity of the design for the elevator structure

[0004] In patent CN20620141472 and patent CN201120223317, although the combination of two sets of tensioning sheaves is used, to meet the installation space of the hydraulic buffer, the two sets of sheaves need a large distance, and the two sets of compensation wire ropes act independently on each set of sheaves , the tension of each group of steel wire ropes cannot be completely equal, and it is difficult to maintain stability during the operation of the elevator, which indirectly affects the stability of the elevator operation

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