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Method and device for checking carrying means

A traction and detection unit technology, applied in the direction of measuring devices, transportation and packaging, elevators, etc., can solve the problems of reducing the bearing section and failure of the traction mechanism, etc., and achieves the effect of low cost and simple application

Inactive Publication Date: 2005-05-11
INVENTIO AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The effect described will reduce the load-carrying section and consequently reduce the traction force that the traction mechanism can withstand and in extreme cases lead to the failure of the traction mechanism

Method used

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  • Method and device for checking carrying means
  • Method and device for checking carrying means
  • Method and device for checking carrying means

Examples

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Embodiment Construction

[0040] figure 1 and 2 The physical connections of the present invention are shown. The traction mechanism 5 is composed of a tensile carrier 51 . The tensile carrier 51 is made of conductive material or is conductive as a whole. The tensile carrier 51 is surrounded by a sheath 52 or embedded in said sheath 52 . Sheath 52 is constructed of a substantially insulating material, such as polyamide. The sheath substantially insulates the individual tensile carriers 51 from one another. The traction mechanism 5 has a length 1 which is adapted to the intended application.

[0041] exist image 3 In the example shown in to 7, the traction mechanism 5 consists of 12 tensile carriers 51 twisted from individual steel wires in the form of cable strands. In the example shown, the tensile carrier 51 has a diameter of approximately 1.5 mm to 2.0 mm. The tensile carriers 51 are spaced apart from one another and are entirely surrounded by plastic. The jacket 52 substantially insulates ...

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Abstract

The invention relates to a method for detecting a traction mechanism (5) and a device for detecting the traction mechanism (5). The device (1) is optimally suitable for elevator installations (1). The present invention is to detect the reduction of the cross-section of the loaded tensile carrier (51), wherein the tension carrier (51) is heated and its cross-section is reduced by means of current flow and the sheath surrounding said position (52) will be heated violently, the severe heating is determined by measuring the temperature of the surface of the traction mechanism. A determined temperature increase indicates the extent of damage to the tensile carrier.

Description

technical field [0001] The invention relates to a method for testing a traction mechanism and a device for testing the traction mechanism. Background technique [0002] Known traction mechanisms are cables or belts. The belt consists of several tensile carriers which are embedded in a common sheath. The shape of the belt is usually flat. That is, the tensile carriers have a small distance from each other and the sheath surrounds the tensile carrier strip and fills the interspace formed by the gaps between the tensile carriers. The tensile support is generally produced from steel or steel-like materials, mostly as strands, using known techniques and is usually electrically conductive. [0003] The above-mentioned traction mechanism is widely used in the manufacture of elevators. A corresponding belt is therefore proposed in publication WO 03 / 043926. [0004] When such a traction mechanism is used, special requirements for testing the traction mechanism will arise. The t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01K1/14B66B7/12G01N25/72
CPCB66B7/1223D07B1/145G01N25/72
Inventor 马丁·卢斯滕贝格尔
Owner INVENTIO AG
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