Elevator rope head installation structure

Abstract

The invention discloses an elevator rope head installation structure, which comprises a rope head component (1), a rope head plate (2) and a steel wire rope (3), wherein the lower end of the rope head component (1) can up and down movably pass through the rope head plate (2) and is connected with the rope head plate (2) through an elastic piece (5), bend wheels (4) are further arranged above the rope head plate (2), and the steel wire rope (3) upwardly extends after bypassing a diversion sheave on an elevator car or a diversion sheave on a counterpoise, and then is connected onto the rope head component (1) by downwardly extending after bypassing above the bend wheels (4). The elevator rope head installation structure greatly reduces height demands of elevators to a top layer space of a shaft by arranging the bend wheels above the rope head plate and changing a connecting mode of the steel wire rope and the rope head component. A plurality of steel wire ropes which are divided into two rows or many rows in a staggered state ago are changed to be arranged in a row, thereby being prevented from causing rope loosening accidents because angles of steel wire ropes deflect too large, enabling adjustable range of the steel wire ropes to be increased after the steel wire ropes downwardly extend from the bend wheels.

Description

technical field [0001] The invention relates to an elevator rope head installation structure. Background technique [0002] For machine-room-less passenger elevators, the height of the top floor is sometimes determined by the distance from the reversing sheave on the car to the top of the hoistway or from the reversing sheave on the counterweight to the top of the hoistway. see figure 1 , the existing elevator rope head installation structure comprises a rope head assembly 10, a rope head plate 20 and a steel wire rope 30, the rope head plate 20 is fixed at a position close to the top of the hoistway, the rope head assembly 10 is located below the rope head plate 20, and the rope head assembly The upper end of 10 can move up and down through the rope head plate 20 and is connected with the rope head plate 20 through the elastic member 40, and the steel wire rope 3 goes around the anti-sheave wheel on the car or the anti-sheave wheel on the counterweight and extends upwards ...

AI Technical Summary

Problems solved by technology

[0003] It can be seen that the defects of the existing elevator rope head installation structure are: (1) Due to the sequential connection from bottom to top, the reverse rope pulley on the car or the reverse rope pulley on the counterweight can only be lifted by the steel wire rope 3 at the highest. Arriving at A in the figure, the height X of 100 from the top of the hoistway is relatively large, and it is difficult for the top space of the hoistway to continue to decrease in height; The steel wire ropes are arranged in a row (for example, 8 steel wire ropes are arranged in a row), and the rope ends connected to each steel wire rope on the rope end assembly 10 are two or more rows, for example figure 1 The shown rope end assembly 10 is two rows of staggered rope ends (4 rope ends in each row), which are used to connect 8 steel wire ropes, so that multiple steel wire ropes are staggered during the ascent process. When the angle deflection with the anti-rope pulley on the car or the anti-rope pulley on the counterweight is too large, a rope-off accident will easily occur; (3) Due to the short distance between the rope head plate 20 and the top of the hoistway, the rope head assembly ( 10) After the upper end passes through the rope head plate 20, there is less space for up and down movement, and the adjustable range is very limited

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