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A device for cable bending test

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

Active Publication Date: 2018-07-17
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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  • A device for cable bending test
  • A device for cable bending test
  • A device for cable bending test

Examples

Experimental program
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Effect test

Embodiment

[0022] The motor drives the crank through the reducer to rotate once, 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 rocking bar (movable plate). After repeated pole length adjustments, it was finally determined:

[0023] AC 1 =360

[0024] AC 2 =170

[0025] AB=95

[0026] BC=265

[0027] AD=269.64

[0028] gamma min =41.2°

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

[0030] The servo motor in the motion structure of the cable bending test device is the HG-KR23 servo motor from Mitsubishi Corporation, with 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%. Gap connection, no gap transmission torque; the counter uses the KCU-S type addition and subtraction setting c...

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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 invention relates to the technical field of measurement, in particular to a device for cable bending tests. Background technique [0002] The characteristics of cable bundles tend to be high voltage, high power, complex structure and large number. 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. In the actual application process, the cable is constantly subjected to the influence of itself, the external environment and the mechanical environment, but it is required to still work normally. This needs to be verified with experimental 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. The cable is bent continuously at a certain angle, and the product is qua...

Claims

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Application Information

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Patent Type & Authority Patents(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
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