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Device for cable bending test

A bending test and cable installation technology, which is applied in the field of measurement, can solve the problems of harsh use environment and complicated cable bundles, and achieve the effect of easy disassembly

Active Publication Date: 2016-08-03
LANZHOU INST OF PHYSICS CHINESE ACADEMY OF SPACE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to the current technology development trend, the cable harness will become more complex, its life expectancy is longer, the number of movements is more, and the use environment is more severe

Method used

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  • Device for cable bending test
  • Device for cable bending test

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0022] The motor drives the crank through the reducer for each revolution, and the connecting rod drives the rocker to swing once in the range of 0-60°. One end of the wire is fixed on the frame (fixed plate), and the other end is fixed on the rocker (movable plate). After repeated adjustments to the rod length, it was finally determined:

[0023] AC 1 = 360

[0024] AC 2 = 170

[0025] AB=95

[0026] BC=265

[0027] AD=269.64

[0028] γ min = 41.2°

[0029] Meet the requirement of minimum transmission angle ≥40°.

[0030] In the motion structure of the cable bending test device, the servo motor uses Mitsubishi HG-KR23 servo motor, power: 200W, rated speed: 3000r / min, rated torque: 0.64N·m, maximum torque: 2.2N·m; reducer The 160:1 PL-80 planetary reducer produced by Hubei Planetary Company is selected, and the full load efficiency is 90%; the coupling is the Smartflex932.343 coupling of German Maier Company, which can compensate for shaft, angle and radial deviations. Gap connection...

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Abstract

The invention provides a device for a cable bending test. The device comprises a counter, a rack, a cable installation platform, a movement mechanism, a coupler, a speed reducer and a servo motor; the cable installation platform comprises a movable plate and a fixed plate; a crank and rocker mechanism comprises a crank and a connecting rod; holes and containing grooves are formed in the cable installation platform, and a nylon rope penetrates through the corresponding hole to fix one end of each cable in the corresponding containing groove and fix the other end of the cable to the movement mechanism; the speed reducer and the servo motor are connected, and a speed reducer output shaft is connected with the movement mechanism through the coupler; the movement mechanism adopts the crank and rocker mechanism, the crank mechanism is provided with a proximity switch for detecting the rotating speed, and the proximity switch is connected with the counter; the fixed plate of the cable installation platform is fixedly connected with the rack, and the movable plate and the fixed plate of the cable installation platform are movably connected through a rotating shaft; one end of the crank is connected with the rack, the other end of the crank is connected with one end of the connecting rod, and the other end of the connecting rod is fixed to the movable plate.

Description

Technical field [0001] The present invention relates to the field of measurement technology, in particular to a device for cable bending test. Background technique [0002] Cable bundles are characterized by high-voltage, high-power, complex structure and large numbers. According to the current technological development trend, cable bundles will become more complex, with longer life requirements, more exercises, and harsher use environments. In the actual application process, the cable is constantly subjected to the influence of itself and the external environment and mechanical environment, but it is required to still work normally. This needs to be verified with test equipment. Divided by test items, it can be divided into environmental test, life test, accelerated test and various special tests. Among them, the cable bending test is an important life test. It is qualified to bend continuously at a certain angle, and reach the specified bending times of the product without a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/32
CPCG01N3/32G01N2203/0005G01N2203/0023G01N2203/0073
Inventor 李存惠全小平冯展祖田海杨生胜
Owner LANZHOU INST OF PHYSICS CHINESE ACADEMY OF SPACE TECH