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Steel cable stretching force detecting apparatus

A technology of tension detection and wire rope, which is applied in the field of tension measurement of belts or similar flexible elements, cables, wires, and ropes. It can solve the problems of many times of force conversion, the impact of bending deformation stress on inspection accuracy, and the inability to perform unified calibration, etc., to achieve Ease of use

Inactive Publication Date: 2007-08-08
GUANGZHOU UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen that the utility model patent scheme obviously has the following deficiencies: 1. Too many force conversion times, and the structural error of the device directly affects the detection accuracy; 2. The different diameters of the steel cables have different bending deformation stresses that directly affect the inspection accuracy; 3. Different materials of steel cables and elastic rods have different coefficients of elastic deformation, so unified calibration cannot be performed
In particular, the calibration method is not given in the patent application documents, which makes it impossible for those of ordinary skill in the art to implement

Method used

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  • Steel cable stretching force detecting apparatus
  • Steel cable stretching force detecting apparatus
  • Steel cable stretching force detecting apparatus

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Embodiment Construction

[0019] Referring to Fig. 1, the whole device of the present invention will be composed of two cable clamps 4, two ZQ-280 / 160×1100S2 type high-pressure oil cylinders 2 and two LGJ type tension sensors 5 to form a four-bar frame structure hinged to each other, wherein the two cable clamps 4. Two rods are formed, and the rods on both sides are respectively composed of a ZQ-280 / 160×1100S2 type high-pressure oil cylinder 2 and a -LGJ type tension sensor 5 hinged.

[0020] Referring to Fig. 1, Fig. 2 and Fig. 3, the clamp body of the cable clamp 4 is half-shaped, each side is fixedly connected by 4 screws 8, and the clamping cable hole 4-1 is set on the half parting surface , the outer wall of the clamp body 4-2 respectively extends a wing plate 4-3 to both sides. The clamping steel cable hole 4-1 in the clamping body 4-2 is a quadrangular shape (see Figure 3), which can clamp steel cables 1 of different diameters and also play a role of self-centering clamping; The inner wall of t...

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Abstract

The invention discloses a steel cable pull force detection device, the device being a symmetric mutual articulated four rods frame structure, in which the two rods respectively form a cable clamp (4); both side rods respectively serially comprise a pull force sensor (5) and a hydraulic cylinder (2). The cable pull detection device of the invention can be used for detecting the tilted-stay bridge, the suspending-cable bridge, and the tied rod arch, and it uses the cable carrying the actual steel cable carrying pull force in the project, providing the technical means to protect the project quality. The steel cable pull force detection device of the invention has no assumption and conversion, and it can directly detect the steel cable carrying pull force.

Description

technical field [0001] The invention relates to measuring the tension of ropes, cables, wires, belts or similar flexible components, in particular to a steel cable tension detection device. Background technique [0002] Stay cables are widely used in cable-stayed bridges, suspension bridges, tied arches and occasions where cables are used for construction. Cable tension in cable-stayed bridges, main cables and hangers in suspension bridges, hangers in tie-bar arches and cables in construction are extremely important design parameters. It is of great practical significance to accurately estimate the cable tension of the cable. At present, the vibration method is widely used at home and abroad to estimate the cable tension of the cable, that is, the steel cable tension of the cable is estimated by the measured vibration natural frequency of the cable. Because the natural frequency of the cable is not only affected by the tension of the cable, but also by the bending stiffnes...

Claims

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Application Information

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IPC IPC(8): G01L5/10G01L5/04G01L1/22G01L1/14G01L1/16
Inventor 孙作玉宗长龙王涛
Owner GUANGZHOU UNIVERSITY
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