Bidirection overspeed protective device of elevator

A technology of overspeed protection and speed limiting device, which is applied in hoisting devices, transportation and packaging, elevators, etc., can solve the problems of failure of protection devices, failure of brakes, and high maintenance costs, so as to ensure safety performance, reliable braking, and control good moving effect

Active Publication Date: 2006-08-30
佛山市昌宏电梯机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

However, the rope clamping device of this structure simply adopts the brake plate and the brake plate to brake the elevator car traction wire rope immediately clamped when the overspeed operation occurs, and when an abnormality occurs in the elevator During the overspeed operation, in the actual braking process, this unilateral braking method is very easy to be impacted by the continuous impact force of the elevator car during overspeed operation, resulting in brake slipping or brake failure, thus Lead to the failure of the entire protection device, causing

Method used

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  • Bidirection overspeed protective device of elevator
  • Bidirection overspeed protective device of elevator
  • Bidirection overspeed protective device of elevator

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[0014] like Figure 1 to Figure 4 As shown in the figure, an elevator bidirectional overspeed protection device according to the present invention includes a frame body 11, two energy storage spring mechanisms 12, a brake frame 13 that drives a brake plate 131, a custom brake plate 14, and a decoupling mechanism 15. The rope clamping device 1 , the bidirectional speed limiting device 2 and the control rope 3 connected between the rope clamping device 1 and the bidirectional speed limiting device 2 . In order to effectively solve the problems of unreliable braking, easy brake slippage or brake failure, etc. existing in the existing rope clamping device, the brake frame 13 of the present invention is provided between the dynamic brake plate 131 and the customized brake plate 14. There is a wedge-shaped brake plate 4 that can form an upward sliding brake between the two brake plates, and the movable brake plate 131 of the brake frame 13 is correspondingly provided with the wedge-...

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Abstract

The present invention relates to an elevator two-way overspeed protection equipment. Said invention includes a rope-clamping device formed from frame body, two energy-storing spring mechanisms, brake frame with movable brake plate, fixed brake plate and unhooking mechanism, two-way speed-limiting device and control rope connected between rope-clamping device and two-way speed-limiting device. It is characterized by that between the movable brake plate and fixed brake plate of described brake frame a wedge-shaped brake plate is formed, and can be upwards slided so as to attain the brake effect. Said invention is reliable and good in brake effect and its safety is high.

Description

technical field [0001] The invention relates to an elevator operation safety protection device, in particular to an elevator bidirectional overspeed safety protection device. Background technique [0002] The existing two-way overspeed protection device for elevators generally consists of a rope clamping device, a two-way speed limiting device and a control rope connected between the two, such as a "two-way overspeed protection device for elevators" disclosed in Chinese patent ZL02263084.8. The rope clamping device is generally composed of a frame body and a second energy storage spring mechanism installed on the frame body, a brake frame with a dynamic brake plate, a custom brake plate, a decoupling mechanism and other components. Among them, the second energy storage spring mechanism device The bottom of the frame body, and the tops of the two energy storage spring mechanisms are connected together by a pin shaft, and the two ends of the pin shaft are inserted into the wai...

Claims

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Application Information

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IPC IPC(8): B66D5/16B66B5/02
Inventor 陈汉昌
Owner 佛山市昌宏电梯机械有限公司
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