Sheave brake

A brake and sheave technology, applied in elevators, transportation and packaging, etc., can solve problems such as inability to signal shutdown, low safety performance, and potential elevator safety hazards.
CN103588058BActive Publication Date: 2016-01-20HEBEI DONGFANG FUDA MACHINERY
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
HEBEI DONGFANG FUDA MACHINERY
Publication Date
2016-01-20

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Abstract

The invention discloses a brake device or a pawl device used for acting between the inner surface of a shaft, a cage or a skip and the inner surface of a fixing and guiding component or a winch gallery or a lift shaft, and aims at providing a rope wheel brake which is simple in structure, high in safety and capable of closing a rope wheel according to other signals. According to the rope wheel brake, a PLC receives a signal of a sensor, makes a judgment and controls an electromagnet to enable the electromagnet to control a push rod and a connecting rod, and the effect of controlling idler wheels to move up and down is achieved. The distance between the lower end face of a boss and the circumferential face of a brake disc becomes smaller gradually, the brake disc radial direction component force of the pressure between the idler wheels on one side and the lower end face of the boss and the upper end face of the brake disc on the other side becomes larger gradually, the brake disc radial direction component force of the rotation force of the brake disc becomes larger gradually, the friction force becomes larger gradually, and the brake disc is braked. The effect of rope wheel braking is achieved through the contacted friction force between the brake disc and the rope wheel.
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Description

technical field

[0001] The present invention relates to a control device for an elevator, in particular to a brake or pawl device for acting between a car, cage or skip and a fixed guide element or hoistway or the inner surface of the elevator shaft. Background technique

[0002] my country's utility model patent elevator speed limiter, the authorized announcement number is CN201211988Y, and the authorized announcement date is March 25, 2009. It discloses a corresponding safety device that can only be triggered when the elevator running speed exceeds the set speed of the speed limiter. And brake the elevator car or counterweight to make it stay on the guide rail of the elevator and keep it stationary. But when the elevator moves unexpectedly, if the actual speed of the elevator does not exceed the action speed set by the speed limiter, such as when the elevator door is open and the elevator car is still moving, the speed limiter will not produce corresponding actions, and the...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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