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A speed governor that triggers an elevator safety actuator or device

A technology for actuators and speed limiters, applied in elevators, transportation and packaging, etc., can solve problems such as inability to operate, limit the application field of speed limiters, etc., and achieve high reliability and low cost

Active Publication Date: 2016-04-13
SHANGHAI ELEVATORECH ELEVATOR ACCESSORIES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The existing speed limiter can only operate at a speed exceeding the rated speed, and cannot operate at a speed lower than the rated speed, nor can it operate at a certain angle of rotation of the speed limiter
Limit the application field of the speed limiter

Method used

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  • A speed governor that triggers an elevator safety actuator or device
  • A speed governor that triggers an elevator safety actuator or device
  • A speed governor that triggers an elevator safety actuator or device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0028] Such as Figure 2-7 As shown, a speed limiter for triggering the elevator safety actuator or device provided by the present invention includes a cam plate 13, the cam plate 13 is fixed on the inner side of the U-shaped side plate 9 through the guide sleeve 15, and the outer side plate 9 corresponds to The position of the cam disc 13 is provided with an electromagnetic block 14 for controlling the axial movement of the cam disc 13 in the guide sleeve 15; The shaft is arranged, and the brake disc 12 is arranged between the sheave fixing seat 23 and the cam disc 13; The cam disc 13 is provided with pins 20 , and the brake disc 12 is provided with braking holes 21 matching with the pins 20 ; the number of braking holes 21 is an integral multiple of the number of pins 20 . The cam plate 13 is provided with at least two convex teeth 26, and the convex teeth 26 are fixed with a bidirectional pawl 11, and the bidirectional pawl 11 is fixed on the inner side of the side plate 9...

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PUM

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Abstract

The invention discloses a speed governor for triggering an elevator safety actuating mechanism or device. The speed governor is characterized in that a set of brake device is added on the original structure. When an elevator detects conditions that a door lock is unlocked or conditions requiring electromagnet movement, a triggering electromagnet of the speed governor is disconnected with power, a cam plate is meshed with a brake disc, and the speed governor is in a state of waiting to be triggered. When lift car movement amount reaches the allowable maximum movement value, a brake of the speed governor starts working, so that the elevator safety actuating mechanism or device is driven to conduct elevator protection. The speed governor has the advantage that when the elevator gives the speed governor an electric signal and the speed governor detects that the elevator displacement reaches the set mechanical displacement, the electric signal or mechanical signal is output. The cost of the speed governor is slightly increased while protection is achieved.

Description

technical field [0001] The invention relates to a device in the field of elevator safety, in particular to a speed governor for triggering an elevator safety actuator or device. Background technique [0002] Definition of speed limiter: Article 4.67 of GB / T7024-1997 "Terms for Elevators, Escalators, and Moving Walks" is: When the running speed of the elevator exceeds a certain value of the rated speed of the elevator, its action can cause the safety gear to work. It can be seen from the definition that the speed limiter is a kind of elevator overspeed protection device, and its function is to send a signal to the safety actuator to protect the elevator when it detects the elevator overspeed. [0003] The current existing speed limiter is generally installed in the elevator equipment room. The existing speed limiter generally adopts the principle of centrifugal block throwing, such as figure 1 As shown, the car 3 located in the guide rail 4 drives the speed governor sheave ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66B5/16
Inventor 徐东升陈江江邹智姜成荣
Owner SHANGHAI ELEVATORECH ELEVATOR ACCESSORIES