Auxiliary control device of elevator safety tongs

A technology of auxiliary control and safety gear, which is applied in the field of auxiliary control devices and auxiliary control devices of elevator safety gear, to achieve the effects of ensuring safe operation, high control precision, and preventing safety accidents

Inactive Publication Date: 2016-03-16
浙江京禾卫浴有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Obviously, the control device of this kind of safety gear cannot give early warning of the skidding phenomenon caused by the insufficient traction force of the traction sheave, and this skidding phenomenon is one of the main reasons for the overspeed sliding accident of the elevator.

Method used

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  • Auxiliary control device of elevator safety tongs
  • Auxiliary control device of elevator safety tongs
  • Auxiliary control device of elevator safety tongs

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Embodiment Construction

[0017] The following are specific embodiments of the present invention and in conjunction with the accompanying drawings, the technical solutions of the present invention are further described, but the present invention is not limited to these embodiments.

[0018] Such as figure 1 As shown, the present invention provides an auxiliary control device for elevator safety gear, including a car motion parameter detection device, a traction sheave motion parameter detection device, a pneumatic system and a controller 19, a car motion parameter detection device, a pneumatic system and The controllers 15 are all fixedly connected with the car frame 1, and move synchronously with the car; the car motion parameter detection device includes a car floating pulley frame 5, and the car floating pulley frame 5 is provided with a car pulley 4, and the car floating pulley A car rotary encoder 9 is arranged on one side of the frame 5; the traction sheave motion parameter detection device inclu...

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PUM

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Abstract

The invention provides an auxiliary control device of elevator safety tongs. Under the condition that the structure of an existing speed governor is not changed, the auxiliary control device of the safety tongs is added, so that an elevator operates more safely. The auxiliary control device comprises a lift car motion parameter detecting device, a traction sheave motion parameter detecting device, a pneumatic system and a controller. The lift car motion parameter detecting device, the pneumatic system and the controller are fixedly connected with a lift car machine frame and synchronously move along with a lift car. When the lift car slips or the rated speed of the lift car exceeds a set value, a data processor in the controller enables an electromagnetic valve to start automatically through an executing circuit, high-pressure gas in a gas storage tank is made to flow to an air cylinder, a telescopic rod of the air cylinder moves upwards and pushes a safety tong lever mechanism, movable wedge blocks of the safety tongs are driven to move upwards, and therefore the elevator is braked and stopped.

Description

technical field [0001] The invention belongs to the technical field of elevators, and relates to an auxiliary control device, in particular to an auxiliary control device for elevator safety gear. Background technique [0002] The safety gear is a safety component in an elevator. Its operating device is a speed limiter. When the running speed of the elevator car exceeds the rated speed, the mechanical device in the speed limiter will act to block the speed limit rope, and the speed limit rope will pass through the lever. The mechanism pulls the moving wedge of the safety gear to stop the elevator. Apparently, the operating device of this safety gear cannot give early warning of the skidding phenomenon caused by the insufficient traction force of the traction sheave, and this skidding phenomenon is one of the main reasons for the overspeed sliding accident of the elevator. Contents of the invention [0003] The object of the present invention is to solve the above problems...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66B5/22B66B5/06
Inventor 孙迎波
Owner 浙江京禾卫浴有限公司
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