CN104422619A - Cable wire low-temperature bending performance testing device and testing method thereof - Google Patents
Cable wire low-temperature bending performance testing device and testing method thereof Download PDFInfo
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- CN104422619A CN104422619A CN201310397771.4A CN201310397771A CN104422619A CN 104422619 A CN104422619 A CN 104422619A CN 201310397771 A CN201310397771 A CN 201310397771A CN 104422619 A CN104422619 A CN 104422619A
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Abstract
The invention discloses a cable wire low-temperature bending performance testing device and a testing method thereof, wherein the testing device comprises a base, at least two rolling wheels, a swing piece and a motor; the rolling wheels are arranged on the base in a rotating manner; the motor is fixed on the base; the swing piece is connected with the motor in a transmission manner and swings in a reciprocating manner under the drive of the motor; two connecting structures are arranged on the swing piece and used for fixedly connecting the two ends of a tested cable wire respectively; the two connecting structures are positioned on the two sides of a swing shaft of the swing piece respectively; and the swing shaft of the swing piece and rotating shafts of the rolling wheels are parallel to each other, and the two connecting structures and the rolling wheels are arranged on the same plane. According to the testing method, the device is adopted for testing the tested cable wire, the two ends of the tested cable wire are fixed to the two connecting structures respectively, the tested cable wire is wound on the rolling wheels in a zigzag manner, after low temperature, the motor and the swing piece are matched for enabling the tested cable wire to be subject to bending stress, the number of times of bending of the tested cable wire can be increased through the rolling wheels, and the testing efficiency and accuracy are improved.
Description
Technical field
The present invention relates to cable Performance Testing Technology, particularly relate to a kind of cable low-temperature bending performance testing device and method of testing thereof.
Background technology
Dedicated lamp is as the high lighting apparatus of a kind of reliability, security, be widely used in all trades and professions, and in light fixture use procedure, the carrier of powering to light fixture is cable, so the fine or not direct relation of cable the reliability of light fixture, whether security is guaranteed.Cable consist of two parts, core and insulating sheath.Core, namely conductor part, Main Function is the carrier providing electric power to light fixture.Insulating sheath, mainly protects core, prevents human electric shock or other potential safety hazard.When lamp cable line works at low temperatures, impact due to low temperature environment causes the physical property of cable insulating sheath to reduce, make it to become fragile, there is the phenomenon of cracking, security incident is caused to occur, so the usability of cable insulation course in low temperature environment just must be considered at the beginning of Design of Luminaires.The low temperature environment adaptability direct relation of cable the environmental adaptability that light fixture uses and whether is met actual operation requirements, therefore a kind of cable low-temperature bending performance testing device and method of testing thereof is needed, to check the performance at low temperatures of cable, thus ensure the reliability of light fixture.
Summary of the invention
Technical matters to be solved by this invention is, provides a kind of cable low-temperature bending performance testing device and method of testing thereof, simple, effectively can detect cable performance at low temperatures.
In order to solve the problems of the technologies described above, on the one hand, The embodiment provides a kind of cable low-temperature bending performance testing device, comprise pedestal, at least two rollers, swing component and motors;
Each described roller rotates and is arranged at described pedestal;
Described motor is fixed on described pedestal;
Described swing component is in transmission connection in described motor, and under the drive of described motor reciprocally swinging; Described swing component is provided with two syndetons, is respectively used to the two ends being fixedly connected with tested cable; Syndeton described in two lays respectively at the both sides of the balance staff of described swing component;
The balance staff of described swing component and the rotating shaft of each described roller are parallel to each other, and syndeton described in two and each described roller are arranged at grade.
Wherein, described swing component is provided with transmission shaft, and described transmission shaft is connected with the output shaft of described motor.
Wherein, described pedestal is provided with limiting section, and position corresponding with limiting section on described transmission shaft is provided with limited post, and described limited post and described limiting section corresponding matching are for limiting the pendulum angle of described swing component.
Wherein, described limiting section and described limited post are two, and the two one_to_one corresponding coordinates.
Wherein, described limiting section is two, each described limiting section place is all provided with trigger switch, a controller is electrically connected with between the Enable Pin of trigger switch described in two and described motor, for sending control signal to described motor, to change the rotation direction of the output shaft of described motor when described trigger switch is triggered by described limited post.
Wherein, each described roller and described swing component are arranged in the same direction and are arranged.
Wherein, described pedestal comprises a substrate and a fixed head, and described motor is fixed on described substrate, and described fixed head is vertically fixed on described substrate, and each described roller and described swing component are arranged on the same plate face of described fixed head.
On the other hand, embodiments of the invention additionally provide a kind of cable low-temperature bending performance test methods, and the method comprises the following steps:
One tested cable is provided, aforementioned cable low-temperature bending performance testing device is provided;
One end of tested cable is fixed to a syndeton in described cable low-temperature bending performance testing device, then walks around each roller by sinuous for tested cable, and the other end of described tested cable is fixed to another syndeton;
The cable low-temperature bending performance testing device being provided with tested cable is incubated Preset Time with preset temperature, and described preset temperature is-25 DEG C ± 2 DEG C, and described Preset Time is 100min to 140min;
To the electrical power of cable low-temperature bending performance testing device, described driven by motor swing component swings, and described tested cable is moved back and forth, and observes described tested cable and whether there are abnormal conditions.
Wherein, the external diameter of described roller is 3.5-4.5 times of described tested cable diameter.
Wherein, the hunting period of described swing component is 4 ~ 8s, pendulum angle is 30 ~ 50 degree.
The cable low-temperature bending performance testing device that the embodiment of the present invention provides and method of testing thereof, each roller and swing component are arranged setting in the same direction, and rotating shaft is parallel to each other, so that the installation and checkout of tested cable; The two ends of tested cable are fixed to two syndetons respectively, and tested cable wriggles and is around on roller, can be improved the number of bends of tested cable, improve testing efficiency and accuracy by each roller; Make tested cable produce bending not offset to move, simple, effectively can investigate out when tested cable is subject to stress in the actual use procedure of low temperature and whether there will be the abnormal conditions such as cracking, decortication, avoid insecure cable to be applied on light fixture or other products, thus ensure the safety and reliability of product.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the schematic diagram of the cable low-temperature bending performance testing device that the preferred embodiment of the present invention provides.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described.
See Fig. 1, be a kind of cable low-temperature bending performance testing device that the preferred embodiment of the present invention provides, comprise pedestal 1, three rollers 2, swing component 3 and motors 4.Three rollers 2 rotate and are arranged at pedestal 1, and motor 4 is fixed on pedestal 1 and is in transmission connection with swing component 3, for driving swing component 3 reciprocally swinging.
Pedestal 1 comprises substrate 11 and a fixed head 12, and motor 4 is fixed on substrate 11, and fixed head 12 is vertically fixed on substrate 11, and motor 4 and fixed head 12 are arranged on the same plate face of substrate 11, so that be positioned on a platform by whole device.Each roller 2 and swing component 3 are arranged at the same plate face of fixed head 12.Motor 4 and swing component 3 are positioned at the same side of fixed head 12, so that the connection between swing component 3 and motor 4.Herein, as other embodiment, motor 4 and fixed head 12 also can be individually fixed on two plate faces of substrate 11, and motor 4 also can be separately positioned on the both sides of fixed head 12 with swing component 3, can realize being in transmission connection between motor 4 and swing component 3.
Swing component 3 is provided with transmission shaft 31, and transmission shaft 31 is connected with the output shaft of motor 4, by transmission shaft 31, swing component 3 is connected with motor-driven.In the present embodiment, transmission shaft 31 coaxially arranges with the output shaft of motor 4 and the two is directly connected, the positive and negative rotation of motor 4 can utilize transmission shaft 31 to drive swing component 3 to swing, and certainly, can also arrange speed reduction unit, shaft coupling etc. between the output shaft of motor 4 and transmission shaft 31., one end that transmission shaft 31 is connected with swing component 3 can be made to extend to the fixed head 12 of pedestal 1 herein, and rotation wear fixed head 12, can ensure the stability that swing component 3 swings.Herein, as other embodiment, swing component 3 is connected directly to the rotating shaft of motor 4, and at the drive lower swing of motor 4 rotating shaft.
In order to prevent the pendulum angle of swing component 3 excessive, pedestal 1 is provided with two limiting sections 14,15, transmission shaft 31 is provided with two limited posts 34,35 with limiting section 14,15 corresponding positions, and limited post 34,35 and limiting section 14,15 corresponding matching are for limiting the pendulum angle of swing component 3.
Particularly, substrate 11 is provided with locating part 13, and two limiting sections 14,15 are for being arranged on two projections on locating part 13, and transmission shaft 31 is between two limiting sections 14,15.Two limited posts 34,35 connect forming V-shape.Two limited posts 34,35 respectively with two limiting sections 14,15 corresponding matching.When the rotating shaft of motor 4 rotates forward, drive transmission shaft 31 and swing component 3 to rotate forward, limited post 34 coordinates the maximum angle that can limit swing component 3 forward and swing with limiting section 14; When the rotating shaft of motor 4 is reversed, drive transmission shaft 31 and swing component 3 to reverse, limited post 35 coordinates the maximum angle that can limit swing component 3 backswing with limiting section 15.Limiting section 14 is utilized to prevent the amplitude of fluctuation of swing component 3 excessive with coordinating of limiting section 14.
Herein, as other embodiment, limited post also can be one, and simultaneously with two limiting section 14,15 corresponding matching, namely limited post is spacing rotates between two limiting sections 14,15, thus reaches the object preventing swing component 3 pendulum angle excessive.As another embodiment, limited post is two, and connect forming V-shape, limiting section is one, is arranged between two limited posts, and what utilize a limiting section and two limited posts coordinates the object that also can realize preventing swing component 3 pendulum angle excessive.In the above-described embodiment, utilize boss as limiting section, as other embodiment, limiting section also can be certain two point on the plate face of substrate 11, limited post is two, when swing component 3 swing exceedes maximum angle time, one of them limited post directly can be resisted against substrate, thus prevents swing component 3 pendulum angle excessive.
Herein, when limiting section is two, at two limiting sections 14,15 place, one trigger switch can be respectively installed, the Enable Pin of two trigger switches and motor 4 is electrically connected with a controller, controller can be integrated circuit, CPU etc., for sending control signal to motor 4, to change the rotation direction of the output shaft of motor 4 when the limited post of trigger switch triggers.When motor 4 rotates forward, limited post triggers a wherein trigger switch, and controller can control motor 4 and reverse; When motor 4 reversion makes limited post trigger another trigger switch, controller controls motor 4 and rotates forward, thus utilizes motor 4 to realize driving swing component 3 to swing.Or, directly utilize the angle of the positive and negative rotation of a controller setting motor 4, swing to drive swing component 3.Again or, can, by drive mechanisms such as crank rocking beams, be the swing of swing component 3 by the translating rotation of motor 4, motor 4 uninterruptedly be rotated towards a direction swing component 3 can be driven to swing.
Swing component 3 is provided with two syndetons 33, and be respectively used to the two ends connecting tested cable 9, two syndetons 33 lay respectively at the both sides of the balance staff of swing component 3.Balance staff and the transmission shaft 31 of swing component 3 are parallel to each other with the rotating shaft of each roller 2, and two syndetons 33 are arranged at grade with each roller 2, to be wrapped on roller 2 by bending for tested cable 9, swing component 9 swings and tested cable 9 can be made to move and be subject to bending stress.
In the present embodiment, swing component 3 is plate-like, two syndetons 33 with the balance staff of swing component 3 for axis of symmetry is symmetricly set in swing component 3.Syndeton 33, for being arranged on the projection on the side face of swing component 3, projection offers connecting hole, and the end winding support of tested cable 9 is in connecting hole.End and the connecting hole interference fit of cable can be made in specific implementation process, or the end of cable is inserted into after in connecting hole, be fixed in connecting hole by the structure such as snap-fastener or lock-screw, or syndeton 33 is the fixture that can grip tested cable 9 end.
Three rollers 2 and swing component 3 are arranged setting in the same direction, and the rotating shaft of four is parallel to each other, the installation and checkout of tested cable.The two ends of tested cable 9 are fixed to two syndetons 33 respectively, and tested cable 9 wriggles and is around on three rollers 2, the number of bends of tested cable 9 can be improved by three rollers 2, improve testing efficiency and accuracy, a certain section as cable 9 tested in test process occurs that the abnormal occurrencies such as cracking can illustrate the reliability and safety existing problems of this tested cable.As preferably, the external diameter of roller 2 is 4 times of tested cable 9 external diameter, is arranged on roller 2 to make tested cable 9 bend smoothly, can go out the reliability and safety of tested cable 9 by Validity Test simultaneously.Herein, ensure the external diameter of roller 2 be the 3.5-4.5 of tested cable 9 external diameter doubly.
Herein, as other embodiment, three rollers 2 also can not be arranged in the same direction, and by other means or random arrangement be arranged at the fixed head 12 of pedestal 1, when testing, tested cable 9 is wriggled around on three rollers 2.In addition, the number of roller 2 is also not limited to three, and its number is two or more, and the winding of wriggling of tested cable 9 can be made to arrange.
Correspondingly, present invention also offers a kind of cable low-temperature bending performance test methods, it comprises the following steps.
S1, provide a tested cable 9, above-mentioned cable low-temperature bending performance testing device is provided.
S2, the syndeton 33 one end of tested cable 9 is fixed in cable low-temperature bending performance testing device, more tested cable 9 is wriggled walk around three rollers 2, the other end of tested cable 9 is fixed to another syndeton.For ensureing that tested cable 9 receives suitable bending stress, the external diameter of roller 2 is 3.5-4.5 times of tested cable diameter, can select the roller 2 of various outer diameter according to the tested cable of different-diameter.
S3, the cable low-temperature bending performance testing device being provided with tested cable 9 is incubated Preset Time with preset temperature.Preset temperature is-25 DEG C ± 2 DEG C, and Preset Time is 100min to 140min.In the present embodiment, the preset temperature of employing is-25 degrees Celsius, and Preset Time is 120min, thus simulation low temperature environment, ensure testing reliability.
S4, be energized to the motor 4 of cable low-temperature bending performance testing device, motor 4 drives swing component 3 to swing, and described tested cable is moved back and forth, and observes tested cable 9 and whether there are the abnormal conditions comprising cracking, decortication etc.The hunting period of swing component 3 is 4 ~ 8s, pendulum angle is 30 ~ 50 degree, to ensure that tested cable 9 can receive stress uniformly and effectively.In the present embodiment, default hunting period is 5s, and pendulum angle is 40 degree.
Herein, can after swing component 3 swing a period of time, then observe tested cable 9 and whether there is exception; Can also observe in swing component 3 swing process.
By above-mentioned cable low-temperature test method, tested cable is produced bending, offset does not move, effectively can investigate out when tested cable 9 is subject to stress in the actual use procedure of low temperature and whether there will be the abnormal conditions such as cracking, decortication, avoid insecure cable to be applied on light fixture or other products, thus ensure the safety and reliability of product.
Above embodiment, does not form the restriction to this technical scheme protection domain.The amendment done within any spirit at above-mentioned embodiment and principle, equivalently to replace and improvement etc., within the protection domain that all should be included in this technical scheme.
Claims (10)
1. a cable low-temperature bending performance testing device, is characterized in that, comprises pedestal, at least two rollers, swing component and motors;
Each described roller rotates and is arranged at described pedestal;
Described motor is fixed on described pedestal;
Described swing component is in transmission connection in described motor, and under the drive of described motor reciprocally swinging; Described swing component is provided with two syndetons, is respectively used to the two ends being fixedly connected with tested cable; Syndeton described in two lays respectively at the both sides of the balance staff of described swing component;
The balance staff of described swing component and the rotating shaft of each described roller are parallel to each other, and syndeton described in two and each described roller are arranged at grade.
2. cable low-temperature bending performance testing device according to claim 1, it is characterized in that, described swing component is provided with transmission shaft, and described transmission shaft is connected with the output shaft of described motor.
3. cable low-temperature bending performance testing device according to claim 2, it is characterized in that, described pedestal is provided with limiting section, position corresponding with limiting section on described transmission shaft is provided with limited post, and described limited post and described limiting section corresponding matching are for limiting the pendulum angle of described swing component.
4. cable low-temperature bending performance testing device according to claim 3, is characterized in that, described limiting section and described limited post are two, and the two one_to_one corresponding coordinates.
5. cable low-temperature bending performance testing device according to claim 3, it is characterized in that, described limiting section is two, each described limiting section place is all provided with trigger switch, a controller is electrically connected with between the Enable Pin of trigger switch described in two and described motor, for sending control signal to described motor, to change the rotation direction of the output shaft of described motor when described trigger switch is triggered by described limited post.
6. cable low-temperature bending performance testing device according to claim 1, is characterized in that, each described roller and described swing component are arranged in the same direction and arranged.
7. cable low-temperature bending performance testing device according to claim 1, it is characterized in that, described pedestal comprises a substrate and a fixed head, described motor is fixed on described substrate, described fixed head is vertically fixed on described substrate, and each described roller and described swing component are arranged on the same plate face of described fixed head.
8. a cable low-temperature bending performance test methods, is characterized in that, the method comprises the following steps:
One tested cable is provided, cable low-temperature bending performance testing device described in any one of claim 1 to 7 is provided;
One end of tested cable is fixed to a syndeton in described cable low-temperature bending performance testing device, then walks around each roller by sinuous for tested cable, and the other end of described tested cable is fixed to another syndeton;
The cable low-temperature bending performance testing device being provided with tested cable is incubated Preset Time with preset temperature, and described preset temperature is-25 DEG C ± 2 DEG C, and described Preset Time is 100min to 140min;
To the electrical power of cable low-temperature bending performance testing device, described driven by motor swing component swings, and described tested cable is moved back and forth, and observes described tested cable and whether there are abnormal conditions.
9. cable low-temperature bending performance test methods according to claim 8, is characterized in that, the external diameter of described roller is 3.5-4.5 times of described tested cable diameter.
10. cable low-temperature bending performance test methods according to claim 8, is characterized in that, the hunting period of described swing component is 4 ~ 8s, pendulum angle is 30 ~ 50 degree.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310397771.4A CN104422619A (en) | 2013-09-04 | 2013-09-04 | Cable wire low-temperature bending performance testing device and testing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310397771.4A CN104422619A (en) | 2013-09-04 | 2013-09-04 | Cable wire low-temperature bending performance testing device and testing method thereof |
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| CN201310397771.4A Pending CN104422619A (en) | 2013-09-04 | 2013-09-04 | Cable wire low-temperature bending performance testing device and testing method thereof |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105403471A (en) * | 2015-12-22 | 2016-03-16 | 广东中德电缆有限公司 | Cable softness tester |
| CN109030240A (en) * | 2018-08-15 | 2018-12-18 | 广东产品质量监督检验研究院 | A kind of low temperature cable self-checking device |
| CN110017960A (en) * | 2019-05-24 | 2019-07-16 | 宗秀伟 | A kind of bridge wirerope vibration detection simulator |
| CN110082224A (en) * | 2019-04-26 | 2019-08-02 | 乐庭电线工业（惠州）有限公司 | Combined type bending mechanism for testing |
| CN110333094A (en) * | 2019-07-30 | 2019-10-15 | 江苏嘉萱智慧健康品有限公司 | Paper diaper waist quality testing evaluation method and its detection device |
| CN110595989A (en) * | 2019-08-30 | 2019-12-20 | 国网福建省电力有限公司电力科学研究院 | Cable damage test platform and method for manually simulating strong wind and coastal environment |
| CN110887752A (en) * | 2019-12-10 | 2020-03-17 | 林正军 | Wire and cable bending test device |
| CN111735717A (en) * | 2020-06-19 | 2020-10-02 | 西安交通大学 | Smooth aluminum sheath bending performance test system and test method thereof |
| CN114062159A (en) * | 2021-11-18 | 2022-02-18 | 江苏中利集团股份有限公司 | Cable bending test device and test method |
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- 2013-09-04 CN CN201310397771.4A patent/CN104422619A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105403471A (en) * | 2015-12-22 | 2016-03-16 | 广东中德电缆有限公司 | Cable softness tester |
| CN105403471B (en) * | 2015-12-22 | 2018-06-26 | 广东中德电缆有限公司 | Cable pliability test machine |
| CN109030240A (en) * | 2018-08-15 | 2018-12-18 | 广东产品质量监督检验研究院 | A kind of low temperature cable self-checking device |
| CN110082224A (en) * | 2019-04-26 | 2019-08-02 | 乐庭电线工业（惠州）有限公司 | Combined type bending mechanism for testing |
| CN110017960A (en) * | 2019-05-24 | 2019-07-16 | 宗秀伟 | A kind of bridge wirerope vibration detection simulator |
| CN110333094A (en) * | 2019-07-30 | 2019-10-15 | 江苏嘉萱智慧健康品有限公司 | Paper diaper waist quality testing evaluation method and its detection device |
| CN110595989A (en) * | 2019-08-30 | 2019-12-20 | 国网福建省电力有限公司电力科学研究院 | Cable damage test platform and method for manually simulating strong wind and coastal environment |
| CN110887752A (en) * | 2019-12-10 | 2020-03-17 | 林正军 | Wire and cable bending test device |
| CN110887752B (en) * | 2019-12-10 | 2022-11-01 | 陕西协成测试技术有限公司 | Wire and cable bending test device |
| CN111735717A (en) * | 2020-06-19 | 2020-10-02 | 西安交通大学 | Smooth aluminum sheath bending performance test system and test method thereof |
| CN114062159A (en) * | 2021-11-18 | 2022-02-18 | 江苏中利集团股份有限公司 | Cable bending test device and test method |
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