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Speed-governor of elevator

A technology of elevator speed limiter and elevator car, which is applied in the direction of elevator, transportation and packaging, etc. It can solve the problems of insufficient reliability of the car rolling solution, and achieve the effects of improving service life, preventing car rolling, and improving reliability

Inactive Publication Date: 2016-06-29
LANGFANG JIULIAN MACHINERY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Therefore, the technical problem to be solved by the present invention is that the reliability of the car rolling solution in the prior art is insufficient

Method used

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  • Speed-governor of elevator
  • Speed-governor of elevator
  • Speed-governor of elevator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] This embodiment provides a speed governor for an elevator, comprising a sheave 2, which is rotatably arranged in the box body 1 around a first rotating shaft 14 and has a groove 20, a part protrudes from the opening 21, and the first rotating shaft The two ends of 14 are fixed on the corresponding box walls of the box body 1; the steel wire rope 3 is wound tightly in the groove of the sheave 2, connected to the car of the elevator, and drives the car to move synchronously with it; the ratchet 4 , set coaxially with the sheave 2, the limit device is used to limit the rotation angle of the ratchet 4; the linkage device is arranged between the ratchet 4 and the sheave 2, and is used for sliding the car , link the ratchet 4 and the rope wheel 2; the sensor is located on the upper and lower sides of the balance position of the elevator car, and is set at a fixed distance from the balance position. When the elevator car moves to the position where the sensor is located The se...

Embodiment 2

[0058] This embodiment provides an elevator speed governor, which is a further improvement on the basis of Embodiment 1.

[0059] Such as figure 2 As shown, the elevator speed governor also includes an overspeed linkage device, and the overspeed linkage device includes

[0060] The two throwing blocks 13 are arranged symmetrically with respect to the first rotating shaft, and the two throwing blocks 13 are connected together by linkage pull rods, and are gathered to the mandrel of the sheave through the coil spring 15;

[0061] The rotating shaft 17 is vertically arranged on the sheave;

[0062] The pawl 16 is rotatably arranged on the rotating shaft 17;

[0063] The spring 18 is arranged between the ratchet 16 and the sheave, and provides the force for the ratchet 16 to rotate away from the ratchet 4 .

[0064] When the sheave rotates at an overspeed, the throwing block 13, under the action of centrifugal force, overcomes the force of the coil spring 15, expands and moves...

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PUM

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Abstract

The present invention provides an elevator speed limiter. After the car slides, the limit device first limits the rotation range of the ratchet. At this time, because the ratchet and the sheave are in linkage, the rotation of the sheave is also limited. When the rope After the rotation of the wheel is restricted, the wire rope of the speed governor pulls the handle of the safety tongs, and the safety tongs brake the elevator car, and the movement of the car will also be restricted, thereby controlling the slipping car. It effectively avoids the phenomenon that the car cannot be stopped due to simple control of the traction machine brake (because the secondary brake of the traction machine is not tight) in the prior art. At the same time, only when the control cabinet of the present invention receives the car slipping signal, the control cabinet will control the linkage device, so that the ratchet and the rope wheel are connected together, which eliminates the problem of the car in the prior art. As long as the car is stopped, it will be linked, which greatly improves the service life of the linkage device.

Description

technical field [0001] The invention relates to the technical field of elevator speed governors, in particular to an elevator speed governor, in particular to a speed governor capable of preventing an elevator from slipping. Background technique [0002] The speed limiter is a part of the elevator overspeed protection device. The speed limiter is installed in the machine room at the top of the elevator, and the tensioning device is installed in the pit at the bottom of the elevator. The steel wire rope is looped between the speed limiter and the tensioning device in a closed loop. The tensioning device makes the steel wire rope tightly wrapped in the speed governor. , so that the speed limiter and the elevator car move synchronously at all times. [0003] Elevator overspeed is generally the phenomenon that the upward or downward speed of the elevator exceeds 115% of the rated speed. When the elevator is overspeed, under the action of the centrifugal force generated by the ...

Claims

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Application Information

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IPC IPC(8): B66B5/06B66B5/16
CPCB66B5/06B66B5/16
Inventor 柳树林龙勇
Owner LANGFANG JIULIAN MACHINERY CO LTD