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Brake for protecting elevator traction ropes

A technology of elevator traction and brakes, which is applied in the direction of hoisting devices, etc., can solve the problems of affecting elevator safety, high clamping pressure, easy loosening, etc.

Inactive Publication Date: 2012-11-14
WUJIANG XINYI PRECISION HARDWARE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The structure of the brake for the guide rail is complicated and the cost is high
The commonly used brake for the traction rope is in the form of two parallel plates clamping the rope. Since the clamping surface is flat, and the cross section of the traction rope is usually circular, the friction surface is small, and the required clamping The pressure is very high, it is easy to loosen, which affects the safety of the elevator, and it is also easy to wear the traction rope, reducing the service life

Method used

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  • Brake for protecting elevator traction ropes

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Embodiment Construction

[0016] The present invention will now be further described in detail in conjunction with the accompanying drawings and embodiments. These drawings are all simplified schematic diagrams, only illustrating the basic structure of the present invention in a schematic manner, so it only shows the composition related to the present invention.

[0017] Such as figure 1 As shown, in a brake for protecting elevator traction ropes of the present invention, there are three traction ropes 1 to be braked, and the longitudinal extensions are parallel to each other and arranged in a straight line. The brake includes two parallel clamping plates 2, 4 and a clamping plate driving device. The opposite surfaces of the two clamping plates are respective clamping surfaces, and the clamping surfaces are smooth and flat. The side wall on one side of the clamping surface of the clamping plate 2 is provided with 3 longitudinal strip grooves 21, and the side wall on the one side of the clamping surface...

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Abstract

The invention relates to a brake for protecting two or more elevator traction ropes which extend longitudinally, are parallel mutually and are arrayed lineally. The brake comprises two parallel clamping plates and a clamping plate driving device. The opposite surfaces of the two clamping plates are clamping surfaces. The brake is characterized in that: the wall of one side of one of the two clamping plates is provided with at least two longitudinal strip-shaped grooves, the wall of one side of the other clamping plate is provided with longitudinal strip-shaped lugs which correspond to the grooves, and the shapes of the lugs match with the inner shapes of the corresponding grooves. The brake adopts the grooves and the lugs to firmly clamp, lock and brake the traction rope, can effectively prevent the traction rope from sliding between the two parallel clamping plates, has a larger friction surface and improves the security. The asbestos lugs can be adopted to achieve the purposes of flexibly braking and protecting the traction rope through improving the flexibility and buffering during the contact with the traction rope.

Description

technical field [0001] The invention relates to a braking device for a traction rope, in particular to a brake for an elevator traction rope. Background technique [0002] Usually one end of the traction rope is fixed on the counterweight of the elevator, and the other end is fixed on the car, and the lift is realized by the forward and reverse rotation of the traction sheave. The multi-rope friction lifting form is a commonly used form, which has the advantages of large lifting capacity and high safety. At present, the direct braking objects of the common brakes are divided into two types: elevator guide rails and traction ropes. The structure of the brake for the guide rail is complicated and the cost is high. The commonly used brake for the traction rope is in the form of two parallel plates clamping the rope. Since the clamping surface is flat, and the cross section of the traction rope is usually circular, the friction surface is small, and the required clamping ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66D5/16
Inventor 陈林华
Owner WUJIANG XINYI PRECISION HARDWARE
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