CN105823697A - Device for cable bending test - Google Patents
Device for cable bending test Download PDFInfo
- Publication number
- CN105823697A CN105823697A CN201610398470.7A CN201610398470A CN105823697A CN 105823697 A CN105823697 A CN 105823697A CN 201610398470 A CN201610398470 A CN 201610398470A CN 105823697 A CN105823697 A CN 105823697A
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- Prior art keywords
- cable
- crank
- connecting rod
- mounting platform
- fixed
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/32—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/0005—Repeated or cyclic
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0023—Bending
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/0069—Fatigue, creep, strain-stress relations or elastic constants
- G01N2203/0073—Fatigue
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
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
The present invention relates to field of measuring technique, particularly relate to a kind of device for cable folding test.
Background technology
The feature of bunch of cables be trend towards high pressure, high-power, structure is complicated and large number of.From the point of view of current technology trends, bunch of cables is more complicated by become, and its life requirements is longer, times of exercise is more, uses environment more severe.Cable, in actual application, constantly stands self and external environment and the impact of mechanical environment, but requires it still to be able to normally and work.This is accomplished by verifying it with testing equipment.Divide with pilot project, environmental test, life test, accelerated test and various special test can be divided into.Wherein cable folding test is exactly an important life experiment, with the angle continuously bending determined, reach bending times that product specifies and without outer conductor abnormal for qualified.This test is many by being accomplished manually now, for carrying the accuracy for improving bending test result, reduces artificial labor intensity, proposes full automatic cable folding test device herein for actually used needs.
Summary of the invention
The present invention provides a kind of device for cable folding test so that the speed of cable folding and number of times are easier to accurately control.
The present invention is to be achieved through the following technical solutions:
A kind of device for cable folding test, comprising: enumerator, frame, cable mounting platform, motion, shaft coupling, reductor and servomotor；Wherein, cable mounting platform includes portable plate and fixed plate；Crank and rocker mechanism includes crank and connecting rod；And cable mounting platform is provided with hole and mounting groove, utilizing nylon rope to pass described hole and be fixed in mounting groove cable one end, the other end is fixed on motion；
Reductor and servomotor connect, and speed reducer output shaft is connected with motion by shaft coupling；Motion uses crank and rocker mechanism, installs the proximity switch of detection rotating speed on crank mechanism, and proximity switch is connected with enumerator；The fixed plate of cable mounting platform and the fixing connection of frame, be flexibly connected by rotating shaft between the portable plate of cable mounting platform, fixed plate；Crank one end is connected with frame, and the crank other end is connected with connecting rod one end, and the connecting rod other end is fixed with portable plate.
Effect is preferable: bonding polyimide layer on each wall of mounting groove on cable mounting platform.
Compared with prior art, the invention has the beneficial effects as follows:
The present invention uses that servomotor can ensure that the accurately output of torque and speed, bending speed is adjustable；Use enumerator can show and record the bending number of times of cable in real time, can be used for the test of all cable foldings to verify the performance of cable.Wherein, servomotor, motor reducer, shaft coupling composition drive mechanism, output torque, rotating speed size is adjustable；Motion can ensure that the angle of cable folding is the most adjustable in the range of 0～90 °；Enumerator can show and record the bending number of times of cable in real time；Cable mounting platform can be installed any number of cable and carry out cripping test, through colligation, fixing cable can from platform in easy dismounting, process of the test platform can guarantee that cable the most all can not be impaired.
Accompanying drawing explanation
Fig. 1 is the device schematic diagram for cable folding test of the present invention.
Fig. 2 is the motion schematic diagram of the present invention.
In figure: 1-enumerator, 2-frame, 3-cable mounting platform, 4-motion, 5-shaft coupling, 6-reductor, 7-servomotor.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
As depicted in figs. 1 and 2, a kind of device for cable folding test, comprising: enumerator 1, frame 2, cable mounting platform 3, motion 4, shaft coupling 5, reductor 6 and servomotor 7；
Wherein, cable mounting platform 3 includes portable plate and fixed plate；Crank and rocker mechanism includes crank and connecting rod；And cable mounting platform 3 is provided with hole and mounting groove, utilizing nylon rope to pass described hole and be fixed in mounting groove cable one end, the other end is fixed on motion 4；
Reductor 6 and servomotor 7 connect, and reductor 6 output shaft is connected with motion 4 by shaft coupling 5；Motion 4 uses crank and rocker mechanism, installs the proximity switch of detection rotating speed on crank mechanism, and proximity switch is connected with enumerator 1；The fixed plate of cable mounting platform 3 and the fixing connection of frame 2, be flexibly connected by rotating shaft between the portable plate of cable mounting platform 3, fixed plate；Crank one end is connected with frame 2, and the crank other end is connected with connecting rod one end, and the connecting rod other end is fixed with portable plate.Bonding polyimide layer on each wall of mounting groove on cable mounting platform 3.
Wherein, motion 4 presses crank and rocker mechanism (minimum transmission angle γ min >=40 °) design, and AB is crank, and BC is connecting rod, and CD is rocking bar (i.e. portable plate), and AD is frame.Rocking bar length CD is determined, two extreme position C of rocking bar according to sample of cable length1D and C2D, ∠ C1DC2For cable folding angle (0～90 ° any adjustable), determine the length of crank, connecting rod, frame according to the bar elongate member of crank and rocker mechanism.
Servomotor 7, reductor 6, shaft coupling 5, Rotating speed measring and enumerator 1 form this system of drive mechanism.The rotating speed of the crank mechanism according to test requirements document, torque select the servomotor 7 of small-power low inertia, require specified output speed > 3000r/m, specified output torque > 0.5N m, motor servo driver select single phase ac 220V input, speed closed loop is constituted, it is ensured that permanent rotating speed output with motor encoder.Reductor 6 output shaft is coupled with crank mechanism by shaft coupling 5.Installing the proximity switch of detection rotating speed on crank mechanism, actually measured tacho-pulse is inputted enumerator 1, the cumulative arrival of enumerator 1 sets output signal after count value, and system stops.
Cable is carrying out colligation when being bent to maximum angle, and kidney-shaped colligation hole is opened in cable mounting platform 3 both sides, is fixed on colligation hole by cable with nylon rope, places cable and occurs when bending relatively to slide；For ensureing to produce friction between cable and be wound around, between different cables, colligation is in different sample mounting grooves, and mounting groove width should be more than the twice of bunch of cables diameter；For ensureing that in motor process, cable will not encounter platform, in cable mounting groove, bonding Kapton Tape is isolated.
Embodiment
Motor via reducer drives crank every revolution, drives rocking bar to swing once in the range of 0-60 ° by connecting rod.Wire one end is fixed on frame (fixed plate), and the other end is fixed on rocking bar (portable plate).Debug through bar length repeatedly, finally determine:
AC1=360
AC2=170
AB=95
BC=265
AD=269.64
γmin=41.2 °
Meet the requirement of minimum transmission angle >=40 °.
In cable folding assay device motion structure, servomotor selects the HG-KR23 type servomotor of Mitsubishi, power: 200W, rated speed: 3000r/min, nominal torque: 0.64N m, peak torque: 2.2N m；Reductor selects the PL-80 planetary reducer of the 160:1 of Hubei planet company production, full load efficiency 90%；The Smartflex932.343 type shaft coupling of Mai Er company of Germany selected by shaft coupling, can compensate for axle, angle and radial missing, and gapless connects, play-free torque transmission；Enumerator selects silver dollar company of Japan KCU-S type plus-minus to set enumerator；Proximity switch is the APS-30-4N type proximity switch that silver dollar company of Japan produces.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all any amendment, equivalent and improvement etc. made within the spirit and principles in the present invention, should be included within the scope of the present invention.
Claims (2)
1. the device for cable folding test, it is characterised in that: including: enumerator (1), frame (2), cable mounting platform (3), motion (4), shaft coupling (5), reductor (6) and servomotor (7)；Wherein, cable mounting platform (3) includes portable plate and fixed plate；Crank and rocker mechanism includes crank and connecting rod；And cable mounting platform (3) is provided with hole and mounting groove, utilizing nylon rope to pass described hole and be fixed in mounting groove cable one end, the other end is fixed on motion (4)；
Reductor (6) and servomotor (7) connect, and reductor (6) output shaft is connected with motion (4) by shaft coupling (5)；Motion (4) uses crank and rocker mechanism, installs the proximity switch of detection rotating speed on crank mechanism, and proximity switch is connected with enumerator (1)；The fixed plate of cable mounting platform (3) and the fixing connection of frame (2), be flexibly connected by rotating shaft between the portable plate of cable mounting platform (3), fixed plate；Crank one end is connected with frame (2), and the crank other end is connected with connecting rod one end, and the connecting rod other end is fixed with portable plate.
A kind of device for cable folding test, it is characterised in that: bonding polyimide layer on each wall of the upper mounting groove of cable mounting platform (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610398470.7A CN105823697B (en) | 2016-06-07 | 2016-06-07 | A kind of device for cable folding experiment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610398470.7A CN105823697B (en) | 2016-06-07 | 2016-06-07 | A kind of device for cable folding experiment |
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| Publication Number | Publication Date |
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| CN105823697A true CN105823697A (en) | 2016-08-03 |
| CN105823697B CN105823697B (en) | 2018-07-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610398470.7A Active CN105823697B (en) | 2016-06-07 | 2016-06-07 | A kind of device for cable folding experiment |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108195692A (en) * | 2017-11-30 | 2018-06-22 | 中国空间技术研究院 | Cable bending fatigue test mechanism on a kind of star |
| CN108303226A (en) * | 2017-01-13 | 2018-07-20 | 波音公司 | System and method for loading from lotus to test article |
| CN108787934A (en) * | 2018-06-06 | 2018-11-13 | 潘真清 | A kind of cable bending shearing integrated device |
| CN108832464A (en) * | 2018-06-06 | 2018-11-16 | 潘真清 | A kind of electric wire folding forceps |
| CN110208122A (en) * | 2019-05-08 | 2019-09-06 | 杭州电子科技大学 | A kind of robot harness wear-resisting reliability accelerated test method |
| CN112517794A (en) * | 2020-09-30 | 2021-03-19 | 国网浙江省电力有限公司湖州供电公司 | Cable bending device |
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| FR2946431B1 (en) * | 2009-06-04 | 2011-06-24 | Leoni Wiring Systems France | METHOD AND INSTALLATION OF DOUBLE ORIENTATION FOLDING TEST |
| CN103185851A (en) * | 2011-12-30 | 2013-07-03 | 北京谊安医疗系统股份有限公司 | Flexible cable buckling life testing device |
| CN103424323A (en) * | 2012-05-14 | 2013-12-04 | 海洋王（东莞）照明科技有限公司 | Cable bending fatigue testing device |
| CN104181059A (en) * | 2013-05-28 | 2014-12-03 | 深圳市海洋王照明工程有限公司 | Cable fatigue test device |
| CN104181056A (en) * | 2013-05-28 | 2014-12-03 | 深圳市海洋王照明工程有限公司 | Cable fatigue testing device |
-
2016
- 2016-06-07 CN CN201610398470.7A patent/CN105823697B/en active Active
Patent Citations (5)
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| FR2946431B1 (en) * | 2009-06-04 | 2011-06-24 | Leoni Wiring Systems France | METHOD AND INSTALLATION OF DOUBLE ORIENTATION FOLDING TEST |
| CN103185851A (en) * | 2011-12-30 | 2013-07-03 | 北京谊安医疗系统股份有限公司 | Flexible cable buckling life testing device |
| CN103424323A (en) * | 2012-05-14 | 2013-12-04 | 海洋王（东莞）照明科技有限公司 | Cable bending fatigue testing device |
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| ZHIHUA CHEN ET AL.: ""Experimental research on bending performance of structural cable"", 《CONSTRUCTION AND BUILDING MATERIALS》 * |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108303226A (en) * | 2017-01-13 | 2018-07-20 | 波音公司 | System and method for loading from lotus to test article |
| CN108303226B (en) * | 2017-01-13 | 2021-08-10 | 波音公司 | System and method for loading a test object |
| CN108195692A (en) * | 2017-11-30 | 2018-06-22 | 中国空间技术研究院 | Cable bending fatigue test mechanism on a kind of star |
| CN108787934A (en) * | 2018-06-06 | 2018-11-13 | 潘真清 | A kind of cable bending shearing integrated device |
| CN108832464A (en) * | 2018-06-06 | 2018-11-16 | 潘真清 | A kind of electric wire folding forceps |
| CN110208122A (en) * | 2019-05-08 | 2019-09-06 | 杭州电子科技大学 | A kind of robot harness wear-resisting reliability accelerated test method |
| CN112517794A (en) * | 2020-09-30 | 2021-03-19 | 国网浙江省电力有限公司湖州供电公司 | Cable bending device |
| CN112517794B (en) * | 2020-09-30 | 2023-08-25 | 国网浙江省电力有限公司湖州供电公司 | Cable bending device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105823697B (en) | 2018-07-17 |
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