CN114608987B - Wear-resisting detection device is used in cable manufacture - Google Patents
Wear-resisting detection device is used in cable manufacture Download PDFInfo
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- CN114608987B CN114608987B CN202210516812.6A CN202210516812A CN114608987B CN 114608987 B CN114608987 B CN 114608987B CN 202210516812 A CN202210516812 A CN 202210516812A CN 114608987 B CN114608987 B CN 114608987B
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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
- G01N3/56—Investigating resistance to wear or abrasion
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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
- G01N3/02—Details
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
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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
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/026—Specifications of the specimen
- G01N2203/0262—Shape of the specimen
- G01N2203/0278—Thin specimens
- G01N2203/028—One dimensional, e.g. filaments, wires, ropes or cables
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Abstract
The invention discloses a wear-resistant detection device for cable production, which comprises a base, wherein the upper end of the base is symmetrically and fixedly connected with two vertical plates, two mounting plates are symmetrically and fixedly connected between the two vertical plates, and two cable limiting structures are symmetrically mounted at the upper end of the base; two be provided with detection mechanism between the mounting panel, detection mechanism is including setting up the rectangle sleeve between two cable limit structure, the first arcuation strip of the interior top fixedly connected with of rectangle sleeve, be provided with the frictional layer on the inside wall of first arcuation strip, be provided with two connecting plates between the mounting panel. The device is at the in-process that uses, is provided with cable cooling mechanism, can effectively cool down the cable in the experiment, and the influence that the reduce temperature detected the cable wearability just is provided with and removes bits mechanism, can concentrate the collection with the piece that grinds down on the cable, and the follow-up user of being convenient for is to the observation and the judgement of detecting the back cable.
Description
Technical Field
The invention relates to the field of cable processing, in particular to a wear-resistant detection device for cable production.
Background
After the cable is produced and processed, the wear resistance of the cable needs to be detected, so that the phenomenon that the cable is easy to wear after being put into the market is avoided, and a sample of the cable needs to be detected by using a wear resistance detection device;
when an actual cable is used, the friction suffered by the cable wear-resistant testing device is generally not continuously performed, so that heat accumulation is avoided in the friction process, the cable is generally fixed firstly in the use process of the existing cable wear-resistant testing device, and then continuous reciprocating friction is performed on the surface of the cable by using a friction structure, but in the existing device, the continuous friction between the cable and the friction structure generates a large amount of heat, the cable is easy to wear under the condition of high heat, so that the wear is obviously different from the wear in the actual use condition, so that the wear resistance tested by the cable wear-resistant testing device in the prior art is still different from the wear resistance in actual use to a certain extent, and how to solve the problem is required to be considered.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a wear-resistant detection device for cable production.
In order to achieve the purpose, the invention adopts the following technical scheme:
the wear-resistant detection device for cable production comprises a base, wherein the upper end of the base is symmetrically and fixedly connected with two vertical plates, two mounting plates are symmetrically and fixedly connected between the two vertical plates, and two cable limiting structures are symmetrically mounted at the upper end of the base; a detection mechanism is arranged between the two mounting plates and comprises a rectangular sleeve arranged between the two cable limiting structures, a first arc-shaped strip is fixedly connected to the inner top of the rectangular sleeve, a friction layer is arranged on the inner side wall of the first arc-shaped strip, two connecting plates are arranged between the mounting plates, two racks are symmetrically and fixedly connected between the two connecting plates, two rectangular connecting blocks are symmetrically and fixedly connected to the upper end of the rack positioned above the rectangular sleeve, a rectangular guide strip is fixedly connected between the two vertical plates, the rectangular guide strip penetrates through the two rectangular connecting blocks and is in sliding connection with the two rectangular connecting blocks, a hydraulic telescopic rod is installed at the lower end of the rack positioned below the rectangular guide strip, and the telescopic end of the hydraulic telescopic rod is fixedly connected with the upper end of the rectangular sleeve; a cable cooling mechanism used for ensuring the detection accuracy is arranged at the inner top of the rectangular sleeve; be provided with the absorption chamber in the telescopic bottom inner wall of rectangle, be provided with the rectangle chamber in the base, rectangle chamber and absorption intracavity are provided with jointly and remove bits mechanism.
Preferably, a motor is installed on the front side of the installation plate on the front side, the tail end of an output shaft of the motor penetrates through the installation plate on the front side and extends to a position between the two racks, and an incomplete gear matched with the two racks is fixedly connected to the tail end of the output shaft of the motor.
Preferably, the cable cooling mechanism comprises two second arc-shaped strips symmetrically arranged at the top in the rectangular sleeve, each second arc-shaped strip is internally provided with an arc-shaped cavity, each inner side part of the arc-shaped cavity is provided with a plurality of inclined air outlets, the upper ends of the two rectangular connecting blocks are fixedly connected with sliding plates, the opposite sides of the two sliding plates are connected with air bags, the other sides of the two air bags are fixedly connected with corresponding vertical plates, each air bag is communicated with a second one-way pipe, the other end of each second one-way pipe is communicated with a first hose, and the other end of each first hose is communicated with the corresponding arc-shaped cavity.
Preferably, remove bits mechanism including setting up the filter screen in the rectangle intracavity, the headspace in rectangle chamber passes through the second hose and adsorbs the chamber intercommunication, a plurality of air intakes, two have been seted up at the interior top in absorption chamber the gasbag is respectively through the bottom space intercommunication in two first check pipes and rectangle chamber, two all install the check valve in first check pipe and the second check pipe.
Preferably, the plurality of inclined air outlets face the first arc-shaped strip.
Preferably, the controller is installed on the right side of base, a plurality of semiconductor refrigeration pieces are installed to the interior bottom in rectangular cavity, every the cold junction of semiconductor refrigeration piece all extends to the bottom in rectangular cavity, the controller cooperatees with a plurality of semiconductor refrigeration pieces.
Compared with the prior art, the invention has the beneficial effects that:
1. at the in-process that carries out wear-resisting detection, can effectively cool down the processing to the cable and the inboard frictional layer of first arcuation strip of friction usefulness, reduce the influence that the temperature detected cable wearability, and still be provided with and remove bits mechanism, can collect the piece and handle, make things convenient for follow-up observation and the judgement of user of using after detecting the end.
2. The semiconductor refrigerating pieces which can be independently opened and closed are arranged, so that the refrigerating capacity is moderate and the heat dissipation capacity is kept in a relatively uniform state interval in the detection process, and the situation that the temperature is excessively reduced or too small is avoided.
Drawings
Fig. 1 is a schematic structural diagram of a wear-resistant detection device for cable production according to the present invention;
FIG. 2 is an enlarged view of FIG. 1 at A;
FIG. 3 is an enlarged view of FIG. 1 at B;
FIG. 4 is a schematic front view of FIG. 1;
FIG. 5 is a schematic structural diagram of embodiment 2 of the present invention;
fig. 6 is an enlarged view of fig. 5 at C.
In the figure: the device comprises a base 1, a vertical plate 2, a mounting plate 3, a rectangular cavity 4, a filter screen 5, a semiconductor refrigerating sheet 6, a cable limiting structure 7, a rectangular guide strip 8, a sliding plate 9, an air bag 10, a first one-way pipe 11, a second one-way pipe 12, a first hose 13, a connecting plate 14, a hydraulic telescopic rod 15, a second hose 16, a rectangular sleeve 17, a first arc strip 18, a second arc strip 19, an arc cavity 20, an inclined air outlet 21, an adsorption cavity 22, an air inlet 23, a controller 24, an incomplete gear 25, a rack 26, a rectangular connecting block 27 and a motor 28.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Example 1
Referring to fig. 1-4, the wear-resistant detection device for cable production comprises a base 1, wherein the upper end of the base 1 is symmetrically and fixedly connected with two vertical plates 2, two mounting plates 3 are symmetrically and fixedly connected between the two vertical plates 2, two cable limiting structures 7 are symmetrically mounted at the upper end of the base 1, and the cable limiting structures 7 are the prior art and can be cable fixing clamps for cable limiting;
as an embodiment of the invention, in order to detect a cable, a detection mechanism is arranged between two mounting plates 3, the detection mechanism comprises a rectangular sleeve 17 arranged between two cable limiting structures 7, a first arc-shaped strip 18 is fixedly connected to the inner top of the rectangular sleeve 17, a friction layer is arranged on the inner side wall of the first arc-shaped strip 18, two connecting plates 14 are arranged between the mounting plates 3, two racks 26 are symmetrically and fixedly connected between the two connecting plates 14, the two connecting plates 14 and the two racks 26 jointly form a movable frame, two rectangular connecting blocks 27 are symmetrically and fixedly connected to the upper end of the rack 26 positioned above, a rectangular guide strip 8 is fixedly connected between the two vertical plates 2, the rectangular guide strip 8 penetrates through the two rectangular connecting blocks 27, the rectangular guide strip 8 is connected with the two rectangular connecting blocks 27 in a sliding manner, a hydraulic telescopic rod 15 is arranged at the lower end of the rack 26 positioned below, the telescopic end of the hydraulic telescopic rod 15 is fixedly connected with the upper end of the rectangular sleeve 17, a motor 28 is installed on the front side of the installation plate 3 on the front side, the tail end of an output shaft of the motor 28 penetrates through the installation plate 3 on the front side and extends to a position between the two racks 26, and the tail end of an output shaft of the motor 28 is fixedly connected with an incomplete gear 25 matched with the two racks 26;
as an embodiment of the present invention, in order to reduce the abrasion resistance of the cable and detect the abrasion resistance of the cable, the cable is more fit to the actual scene, therefore, a cable cooling mechanism used for guaranteeing detection accuracy is arranged at the inner top of the rectangular sleeve 17 and comprises two second arc-shaped bars 19 symmetrically arranged at the inner top of the rectangular sleeve 17, an arc-shaped cavity 20 is arranged in each second arc-shaped bar 19, a plurality of inclined air outlets 21 are formed in the inner side portion of each arc-shaped cavity 20 and face the first arc-shaped bar 18, sliding plates 9 are fixedly connected to the upper ends of the two rectangular connecting blocks 27, air bags 10 are connected to the opposite sides of the two sliding plates 9, the other sides of the two air bags 10 are fixedly connected with the corresponding vertical plates 2, each air bag 10 is communicated with a second one-way pipe 12, a first hose 13 is communicated with the other end of each second one-way pipe 12, and the other end of each first hose 13 is communicated with the corresponding arc-shaped cavity 20;
as an embodiment of the invention, in order to collect the generated debris, an absorption cavity 22 is arranged in the inner wall of the bottom of a rectangular sleeve 17, a rectangular cavity 4 is arranged in a base 1, a chip removing mechanism is jointly arranged in the rectangular cavity 4 and the absorption cavity 22, the chip removing mechanism comprises a filter screen 5 arranged in the rectangular cavity 4, the top space of the rectangular cavity 4 is communicated with the absorption cavity 22 through a second hose 16, a plurality of air inlets 23 are arranged at the inner top of the absorption cavity 22, two air bags 10 are respectively communicated with the bottom space of the rectangular cavity 4 through two first one-way pipes 11, in the scheme, the first one-way pipes 11, the air bags 10, the second one-way pipes 12, the first hose 13 and the second hose 16 are all made of a heat insulation material, one-way valves are arranged in the two first one-way pipes 11 and the second one-way pipes 12, the one-way flow direction of the first one-way pipes 11 is from the rectangular cavity 4 to the air bags 10, the one-way flow direction of the second one-way tube 12 is the air bag 10 into the corresponding hose 13.
In the invention, when the abrasion resistance of the cable is detected, the cable firstly penetrates through the rectangular sleeve 17, then the cable is limited by the two cable limiting structures 7, and the cable is ensured to be positioned between the two cable limiting structures 7 and is in a tensioned state;
then, the hydraulic telescopic rod 15 is started, the rectangular sleeve 17 moves downwards, the first arc-shaped strip 18 is attached to a cable and pressurized, the motor 28 is started after the hydraulic telescopic rod 15 is closed, the incomplete gear 25 is driven to rotate after the motor 28 is started, when the incomplete gear 25 rotates and is meshed with the lower rack 26, the moving frame is driven to move left, and when the incomplete gear rotates and is meshed with the upper rack 26, the moving frame is driven to move right, after the motor 28 is started, the moving frame can move left and right in a reciprocating mode, the moving frame can drive the rectangular sleeve 17 to move left and right through the hydraulic telescopic rod 15, the rectangular sleeve 17 drives the first arc-shaped strip 18 to move left and right, relative friction is generated between the first arc-shaped strip 18 and the cable, and wear resistance testing is started;
in the process, the left and right movement of the moving frame drives the two sliding plates 9 to move left and right through the rectangular connecting blocks 27, and compresses and expands the two air bags 10, wherein the two air bags 10 are compressed and expanded at different steps, namely the left air bag 10 is compressed, the right air bag 10 is expanded, the left air bag 10 is expanded, and the right air bag 10 is compressed;
therefore, during the moving process of the moving frame, one air bag 10 is always compressed, the other air bag 10 is expanded, when the air bag 10 is compressed, the air in the air bag is pressed into the corresponding arc-shaped cavity 20 through the second one-way pipe 12 and the first hose 13, and finally the air is exhausted from the plurality of inclined air outlets 21, the air can blow the debris at the cable friction position and simultaneously take away the high temperature at the friction position through the air flow, when the air bag 10 is expanded, the air in the rectangular cavity 4 is pumped out through the first one-way pipe 11, after negative pressure is generated in the rectangular cavity 4, the debris blown down by the plurality of inclined air outlets 21 is sucked into the rectangular cavity 4 through the hose 14, the adsorption cavity 22 and the plurality of air inlets 23 and is located at the upper end part of the filter screen 5, that is, with the continuous starting of the motor 28, a circulating air flow at the cable position, the rectangular cavity 4, the air bag 10 and the cable position is generated, the scraps are removed, and meanwhile, the heat conduction generated during the friction of the cable is brought to the first one-way pipe 11, and the heat is dissipated into the air in a passive heat dissipation mode;
compared with the prior art, at the in-process that carries out wear-resisting detection, can effectively cool down the processing to the cable and the inboard frictional layer of first arcuation strip 18 that the friction was used, reduce the influence that the temperature detected the cable wearability, and still be provided with and remove bits mechanism, can collect the piece and handle, make things convenient for follow-up user of service's observation and judgement after detecting the end.
Example 2
Referring to fig. 5 to 6, the difference between this embodiment and embodiment 1 is that a controller 24 is installed on the right side of the base 1, a plurality of semiconductor chilling plates 6 are installed at the inner bottom of the rectangular cavity 4, the cold end of each semiconductor chilling plate 6 extends to the bottom of the rectangular cavity 4, the controller 24 is matched with the plurality of semiconductor chilling plates 6, asynchronous starting of the plurality of semiconductor chilling plates 6 can be controlled through the controller 24, that is, the plurality of semiconductor chilling plates 6 can be started and closed independently, it is ensured that the temperature is in a relatively balanced state when the cable is detected, and the cable is more attached to an actual use scene.
In the embodiment, in the above detection process, the plurality of semiconductor cooling plates 6 are used to actively cool the circulating air flow, so that a better cooling effect can be achieved, and the plurality of semiconductor cooling plates 6 can be independently started and closed, so that a user can observe the degree of surface wear of the wear-resistant cable in the actual wear-resistant detection process, selectively start the corresponding number of semiconductor cooling plates 6, when the wear is large, the friction coefficient of the surface of the cable is increased, the heat generated by friction in unit time is larger (the generated heat is generated by the friction acting, and is controlled by the friction technology and pressure together, and the thickness change of the cable in the wear-resistant test is extremely small, so the change of the pressure is also smaller, and the change of the relative friction coefficient can be ignored), at this time, the started semiconductor cooling plates 6 work more, when the abrasion is small, the friction coefficient of the surface of the cable is small, the heat generated by friction in unit time is small, and at the moment, the semiconductor refrigerating sheet 6 can be started to work, so that the refrigerating capacity and the heat dissipating capacity are kept in a relatively uniform state interval in the detection process, and the situation that the temperature is excessively reduced or excessively reduced is avoided.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (5)
1. The wear-resistant detection device for cable production comprises a base (1) and is characterized in that the upper end of the base (1) is symmetrically and fixedly connected with two vertical plates (2), two mounting plates (3) are symmetrically and fixedly connected between the two vertical plates (2), and two cable limiting structures (7) are symmetrically mounted at the upper end of the base (1);
two be provided with detection mechanism between mounting panel (3), detection mechanism includes rectangular sleeve (17) that sets up between two cable limit structure (7), the interior top fixedly connected with first arcuation strip (18) of rectangular sleeve (17), be provided with the frictional layer on the inside wall of first arcuation strip (18), be provided with two connecting plates (14) between mounting panel (3), two symmetrical fixedly connected with two racks (26) between connecting plate (14), be located the top the upper end symmetry fixedly connected with two rectangular connecting block (27) of rack (26), two fixedly connected with rectangle guide strip (8) between vertical board (2), run through two rectangular connecting block (27) on rectangle guide strip (8), rectangle guide strip (8) and two rectangular connecting block (27) sliding connection, a hydraulic telescopic rod (15) is installed at the lower end of the rack (26) positioned below the rack, and the telescopic end of the hydraulic telescopic rod (15) is fixedly connected with the upper end of the rectangular sleeve (17);
a cable cooling mechanism used for ensuring the detection accuracy is arranged at the inner top of the rectangular sleeve (17);
an adsorption cavity (22) is formed in the inner wall of the bottom of the rectangular sleeve (17), a rectangular cavity (4) is formed in the base (1), and a chip removing mechanism is arranged in the rectangular cavity (4) and the adsorption cavity (22) together;
be located the front side motor (28) are installed to the front side of mounting panel (3), the output shaft end of motor (28) runs through mounting panel (3) of front side to extend to between two racks (26), the output end fixedly connected with of motor (28) and two incomplete gear (25) of rack (26) complex.
2. The abrasion-resistant detecting device for cable production according to claim 1, the cable cooling mechanism comprises two second arc-shaped strips (19) symmetrically arranged at the top in a rectangular sleeve (17), each second arc-shaped strip (19) is internally provided with an arc-shaped cavity (20), each inner side part of the arc-shaped cavity (20) is provided with a plurality of inclined air outlets (21), each inclined air outlet is formed in each inclined air outlet, each sliding plate (9) is fixedly connected to the upper end of each rectangular connecting block (27), each sliding plate (9) is connected with an air bag (10) in a back-to-back mode, each air bag (10) is fixedly connected with a corresponding vertical plate (2), each air bag (10) is communicated with a second one-way pipe (12), each first hose (13) is communicated with the other end of each second one-way pipe (12), and each first hose (13) is communicated with a corresponding arc-shaped cavity (20).
3. The wear-resistant detection device for cable production according to claim 2, wherein the chip removing mechanism comprises a filter screen (5) arranged in the rectangular cavity (4), the top space of the rectangular cavity (4) is communicated with the adsorption cavity (22) through a second hose (16), a plurality of air inlets (23) are formed in the inner top of the adsorption cavity (22), the two air bags (10) are respectively communicated with the bottom space of the rectangular cavity (4) through two first check pipes (11), and check valves are installed in the two first check pipes (11) and the second check pipes (12).
4. A wear-resistant detection device for cable production according to claim 2, characterized in that the inclined air outlets (21) are all directed towards the first arc-shaped strip (18).
5. The wear-resisting detection device for cable production according to claim 1, wherein a controller (24) is installed on the right side of the base (1), a plurality of semiconductor chilling plates (6) are installed on the inner bottom of the rectangular cavity (4), the cold end of each semiconductor chilling plate (6) extends to the bottom of the rectangular cavity (4), and the controller (24) is matched with the plurality of semiconductor chilling plates (6).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210516812.6A CN114608987B (en) | 2022-05-13 | 2022-05-13 | Wear-resisting detection device is used in cable manufacture |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210516812.6A CN114608987B (en) | 2022-05-13 | 2022-05-13 | Wear-resisting detection device is used in cable manufacture |
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| CN114608987A CN114608987A (en) | 2022-06-10 |
| CN114608987B true CN114608987B (en) | 2022-07-15 |
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| CN114858583B (en) * | 2022-07-05 | 2022-09-09 | 南通市通州区同胜电子电缆有限公司 | Low-temperature stretching detection device for cable processing |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6512536B1 (en) * | 1999-02-09 | 2003-01-28 | The United States Of America As Represented By The United States National Aeronautics And Space Administration | Cable and line inspection mechanism |
| FR3013838B1 (en) * | 2013-11-25 | 2017-05-05 | Soc Nat Des Chemins De Fer Francais Sncf | THERMAL TEST BENCH OF A PANTOGRAPH WEAR TAPE AND THERMAL TEST METHOD THEREOF |
| CN107462485B (en) * | 2017-08-08 | 2019-10-22 | 重庆市夔州汽车检测有限公司 | A kind of wear-resisting detection device of automobile parts |
| CN108732197A (en) * | 2018-03-10 | 2018-11-02 | 芜湖特种电线电缆产品质量监督检验中心 | A kind of hot and cold alternation circulation test device of high-tension cable |
| CN108398317A (en) * | 2018-05-21 | 2018-08-14 | 中国石油天然气集团有限公司 | A kind of Wet-dry controllable temperature friction wear testing machine |
| CN209961589U (en) * | 2019-04-27 | 2020-01-17 | 吉林盛大电缆有限公司 | Wear-resisting detection device is used in cable manufacture |
| CN111795902A (en) * | 2020-07-08 | 2020-10-20 | 惠安县钗新汽车配件中心 | Cable character code wear resistance detection device |
| CN113008662B (en) * | 2021-02-25 | 2022-04-29 | 福建富鑫达电子有限公司 | Quality detection system and method for cable production process |
| CN214584646U (en) * | 2021-04-12 | 2021-11-02 | 湖南华菱线缆股份有限公司 | Environment simulation device for desert cable detection |
| CN215414846U (en) * | 2021-04-26 | 2022-01-04 | 南通智博电子线缆有限公司 | Wear-resisting test device of insulated automobile cable |
| CN114034546B (en) * | 2021-12-16 | 2024-04-09 | 安徽扬子线缆股份有限公司 | Wear resistance detection device for wires and cables |
| CN114371090A (en) * | 2021-12-25 | 2022-04-19 | 徐州浩华电缆桥架有限公司 | Automatic abrasion resistance detection device for cable insulation layer |
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