CN108303336A - A kind of electric wire extrusion oversheath scraped finish tester - Google Patents
A kind of electric wire extrusion oversheath scraped finish tester Download PDFInfo
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- CN108303336A CN108303336A CN201711483487.3A CN201711483487A CN108303336A CN 108303336 A CN108303336 A CN 108303336A CN 201711483487 A CN201711483487 A CN 201711483487A CN 108303336 A CN108303336 A CN 108303336A
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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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Abstract
本发明提供了一种电线电缆挤出外护套刮磨试验仪。其中，包括：试验平台、刮磨装置和控制系统；其中，试验平台用以放置并固定待检测电缆试样；刮磨装置可相对试验平台滑动，用以对待检测电线电缆试样施加不同大小的刮磨作用力；电机与刮磨装置电连接，用以驱动刮磨装置沿试验平台以预设速度和预设次数对待检测电线电缆试样进行刮磨。本发明中，通过对待检测电线电缆试样施加不同刮磨作用力的刮磨装置，并通过控制系统控制电机驱动刮磨装置相对试验平台往复移动以对待检测电线电缆刮磨试验，根据实际调节刮磨作用力，操作简单，检测结果可靠性较高；更换待检测电线电缆试验方便快捷，可大大提高电线电缆挤出外护套刮磨试验的检测效率。
The invention provides a scraping tester for an extruded outer sheath of a wire and cable. Among them, it includes: test platform, scraping device and control system; among them, the test platform is used to place and fix the cable sample to be tested; the scraping device can slide relative to the test platform to apply different sizes of wire and cable samples to be tested. Scraping force: the motor is electrically connected to the scraping device, and is used to drive the scraping device to scrape the wire and cable samples to be tested along the test platform at a preset speed and preset times. In the present invention, the scraping device with different scraping force is applied to the sample of the wire and cable to be tested, and the control system controls the motor to drive the scraping device to reciprocate relative to the test platform to perform the scraping test of the wire and cable to be tested. Grinding force, simple operation, and high reliability of test results; it is convenient and quick to replace the wire and cable to be tested, which can greatly improve the detection efficiency of the wire and cable extrusion outer sheath scraping test.
Description
Technical Field
The invention relates to the technical field of electrician measurement and detection, in particular to a scraping and grinding tester for an extruded outer sheath of a wire and a cable.
Background
After the cable is produced and processed, in order to ensure that the product which leaves the factory meets the performance standard, a series of tests and tests including mechanical properties, electrical properties and the like need to be carried out on the cable, wherein the outer sheath of the cable can protect the power cable from being invaded by external impurities and moisture, and prevent external force from directly damaging the power cable, so that the detection of the scraping and abrasion resistance of the outer sheath is very important.
The latest national standard of charging pile finished cables for electric vehicles is about to be implemented. The finished cable of the electric automobile charging pile needs to be subjected to a cable outer sheath scraping test, the scraping vertical force meets the regulation of JB/T10696.6-2007, the scraping frequency is 2000 times, and after the test, the cable sheath does not wear through and does not expose the internal insulating wire core or shielding layer.
The existing scraping and grinding testing machine in the detection field has the defects that the vertical scraping and grinding acting force can not be randomly changed, the applicable wire and cable sample has small outer diameter, the instrument structure is complex, the operation is inconvenient and the like.
Disclosure of Invention
In view of the above, the invention provides a scraping and grinding tester for an extruded outer sheath of a wire and a cable, and aims to solve the problems that the vertical scraping and grinding acting force of the existing scraping and grinding tester cannot be randomly changed and is inconvenient to operate.
In one aspect, the invention provides a scratch and abrasion tester for an extruded outer sheath of a wire and a cable, which comprises: the device comprises a test platform, a scraping and grinding device and a control system; the test platform is used for placing and fixing a cable sample to be detected; the scraping and grinding device can slide relative to the test platform and is used for applying scraping and grinding acting forces with different sizes to the wire and cable sample to be detected; the motor is electrically connected with the scraping device and used for driving the scraping device to scrape the wire and cable samples to be detected at a preset speed and a preset number of times along the test platform.
Further, in the scraping and grinding tester for the extruded outer sheath of the electric wire and the electric cable, the scraping and grinding device comprises: the balance weight body and the scraping and grinding head are connected; the counterweight body is arranged above the scraping and grinding head and is used for applying acting forces with different magnitudes to the scraping and grinding head; the scraping and grinding head is connected with the bottom of the counterweight body and is used for being in contact with the wire and cable sample to be detected so as to apply scraping and grinding acting forces with different sizes to the wire and cable sample to be detected.
Further, in the scraping and grinding tester for the extruded outer sheath of the wire and cable, the scraping and grinding head is V-shaped angle iron.
Further, in the above-mentioned wire and cable extrusion oversheath scraping and grinding tester, the counterweight body includes: a tray; wherein, offer the recess that is used for placing the counter weight on the tray.
Further, among the above-mentioned wire and cable extrusion oversheath scraping and grinding tester, still include: a support body; one end of the support body is slidably connected with the test platform, and the other end of the support body is connected with the scraping device and used for driving the scraping device to move back and forth along the test platform so as to apply scraping acting forces with different sizes to the wire and cable sample to be detected.
Further, in the scraping and grinding tester for the extruded outer sheath of the wire and cable, the support body comprises a base and at least two upright posts; wherein the base is slidably connected with the test platform; each stand all connect in on the base for with the tray is connected.
Further, in the scraping and grinding tester for the extruded outer sheath of the wire and cable, a track for enabling the scraping and grinding device to slide relative to the test platform is arranged on the test platform.
Further, in the scraping and grinding tester for the extruded outer sheath of the wire and cable, the motor is electrically connected with the support body and used for driving the support body to reciprocate along the track.
Further, among the above-mentioned wire and cable extrusion oversheath scraping and grinding tester, still include: pressing a plate; the pressing plates are arranged on two sides of the test bed and used for pressing the wire and cable test sample to be tested on the test platform.
Further, in the scraping and grinding tester for the extruded outer sheath of the wire and cable, a counting device for recording the scraping and grinding times of the scraping and grinding device is arranged in the control system.
Compared with the prior art, the scraping and grinding tester for the wire and cable extrusion outer sheath has the advantages that the scraping and grinding tester for the wire and cable extrusion outer sheath applies different scraping and grinding acting forces to a wire and cable sample to be detected, controls the motor to drive the scraping and grinding device to move back and forth relative to the test platform through the control system so as to scrape and grind the wire and cable to be detected, and is simple to operate and high in reliability of detection results according to actual adjustment of the scraping and grinding acting forces; the test of replacing the wire and cable to be tested is convenient and fast, and the detection efficiency of the scraping and grinding test of the extruded outer sheath of the wire and cable can be greatly improved.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a schematic structural view of a scratch and abrasion tester for an extruded outer sheath of a wire and cable according to an embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
Referring to fig. 1, the scratch and abrasion tester for the extruded outer sheath of the wire and cable according to the embodiment of the present invention includes: the device comprises a test platform 2, a scraping and grinding device 3 and a control system 4; the test platform 2 is used for placing and fixing a cable sample 1 to be detected; the scraping and grinding device 3 can slide relative to the test platform 2 and is used for applying scraping and grinding acting forces with different sizes to the wire and cable sample 1 to be detected; the motor is electrically connected with the scraping device 3 and is used for driving the scraping device 3 to scrape the wire and cable sample 1 to be detected at a preset speed and a preset number of times along the test platform 2.
Specifically, the wire and cable sample 1 to be detected can be a cable for an electric automobile charging pile, and can also be a wire and cable in other electric power related fields, and the outer diameter of the wire and cable sample can be more than or equal to 30mm and less than or equal to 110 mm; the length of which can be determined according to the length of the test platform 2.
The test platform 2 can be a stainless steel platform, and can be including arranging two cabinet bodies 21 on the ground and connecting the platform body 22 at two cabinet body 21 tops in, its whole can be one and fall "concave" font, constitutes the cuboid that has square cavity in the middle of promptly, wherein the length of this cuboid, width, height can be 1600mm, 600mm, 800mm respectively. The bottom of the test platform 2 can be provided with rollers 10 so as to move the whole tester according to the working requirements. The upper surface of the test platform 2 can be provided with a track 6 for enabling the scraping device 3 to slide relative to the test platform 2, so that the scraping device 3 can move on the track in a reciprocating manner to conduct scraping tests on the wire and cable sample 1 to be detected. The rail 6 may be a rectangular parallelepiped stainless steel platform with an open top, and the length thereof may be determined according to the length of the wire and cable test sample 1 to be tested, for example, the length, width and height thereof may be 1000mm, 250mm and 30mm, respectively.
The scraping device 3 may be a structure with adjustable weight, and the weight adjustment may be any one of the ways known to those skilled in the art, and the present embodiment does not limit the invention.
The present embodiment may further include: a support body 9; wherein, but supporter 9 one end and test platform 2 sliding connection, the other end is connected with scraping device 3 for drive scraping device 3 along test platform 2 reciprocating motion in order to treat that detect wire and cable sample 1 applys the scraping effort of equidimension. The supporting body 9 may be any connecting device known to those skilled in the art, and may be connected to a motor to drive the scraping device 3 to move along the testing platform 2. In specific implementation, the motor is electrically connected to the supporting body 9 for driving the supporting body 9 to reciprocate along the rail 6.
A counting device 41 for recording the number of times of the scraping by the scraping device 3 can be arranged in the control system 4. It should be noted that the preset times in this embodiment may be selected according to actual situations, and this embodiment does not limit the preset times.
Specifically, the control system 4 may be disposed outside the test platform 2 or inside the test platform 2, and in order to save the installation space, the control system 4 may be disposed inside the cabinet 21 below the test platform 2. The counting device 41 may be a counter and may record the number of times the wire and cable sample 1 to be detected is scraped by the scraping device 3. A start-stop button 43 may also be provided in the control system 4 to control the start and stop of the motor and counter 41. A speed governor 42 may also be provided in the control system 4 to regulate the drive speed of the motor. The motor (not shown in fig. 1) in this embodiment may be a variable frequency variable speed motor, such as a three-phase motor with power of 750W, and the speed range is (150-300) mm/s. The adjustable-speed motor can drive the scraping device 3 to move back and forth along the test platform 2 under the action of the start-stop button 43. In addition, the control system 4 can also store data in the test process and test result data, so that the detection result has traceability.
With continued reference to fig. 1, the working process of the scratch and abrasion tester for the extruded outer sheath of the electric wire and cable provided by the embodiment is as follows: after the instrument is in place and the power is switched on, the instrument runs without load, and meanwhile, the preparation work before scraping and grinding is well done: and fixing the wire and cable sample 1 to be detected at two ends of the track 6 on the test platform 2 according to the outer diameter of the wire and cable sample 1 to be detected. A length (e.g. 1 meter) of the wire and cable sample 1 to be tested is cut out, placed on the track 6 of the test platform 2 in a horizontal state, and the cut-out section of the wire and cable sample 1 to be tested is pressed. After the sample is pressed, the support body 9 is installed in the track 6, the scraping device 3 is connected to the support body 9, and the scraping part of the scraping device 3 is contacted with the surface of the wire cable sample 1 to be tested. The scraping and grinding speed and the scraping and grinding times are set on a panel of the control system 4, the start-stop button 43 is started, and the motor is controlled to drive the scraping and grinding device 3 to perform a scraping and grinding test.
The scraping and grinding tester for the extruded outer sheath of the wire and cable provided by the embodiment obviously has the advantages that the scraping and grinding devices capable of applying scraping and grinding acting forces with different sizes to a wire and cable sample to be detected are arranged, the motor is controlled by the control system to drive the scraping and grinding devices to reciprocate relative to the test platform at a preset speed so as to carry out scraping and grinding tests for preset times on the wire and cable to be detected, the scraping and grinding acting forces can be adjusted according to actual needs, the operation is simple, and the reliability of a detection result is high; the test of replacing the wire and cable to be tested is convenient and fast, and the detection efficiency of the scraping and grinding test of the extruded outer sheath of the wire and cable can be greatly improved.
In the above embodiment, the scraping device 3 may include: the scraping and grinding head 32 and the balance weight body 31 are connected; wherein, the counterweight body 31 is arranged above the scraping and grinding head 32 and is used for applying different acting forces to the scraping and grinding head 32; the scraping head 32 is connected with the bottom of the counterweight body 31 and is used for contacting with the wire and cable sample 1 to be detected so as to apply scraping acting forces with different magnitudes to the wire and cable sample.
Specifically, the weight body 31 and the scrub head 32 may be welded. The weight body 31 may include: a tray 311; wherein, a groove for placing the counterweight 5 is provided on the tray 311. The tray 311 may have a rectangular parallelepiped shape, and may have dimensions of 380mm (length) by 270mm (width) by 25mm (height), and a plurality of grooves for receiving the counterweight 5 may be engraved on the surface.
In the implementation, the combined gravity of the counterweight 5 and the tray 311 can reach 15N, 35N, 65N, 105N, 155N, 210N, 270N, 340N, 420N and 550N. The mass of the tray 311 is fixed, and the required gravity value is achieved by adding or subtracting the counterweight 5. The tray 311 may be provided with a coupling hole to be coupled with the supporting device 9.
The scraping and grinding head 32 can be made of V-shaped angle iron and made of stainless steel, the scraping and grinding head 32 can be welded at the bottom of the tray 311, one surface of the scraping and grinding head is welded with the bottom of the tray 311, and the curvature radius of the included angle between the other two surfaces is not smaller than 1mm and not larger than 2 mm.
In the above embodiments, the supporting body 9 comprises a base 91 and at least two columns 92; wherein, the base 91 is connected with the test platform 2 in a sliding way; each post 92 is connected to the base 91 for connection to the tray 311.
Specifically, the base 91 may be disposed in the rail 6 of the test platform 2, the base 91 may be a rectangular parallelepiped plate-shaped structure, and may have a size of 380mm (length) × 270mm (width) × 25mm (height), and the base is made of stainless steel, and connection holes are punched near four right angles of the plate surface for fixing the columns 92. One end of the base 91 is connected with a transmission shaft of a motor and can move back and forth in the track 6 at the speed of (150-300) mm/s, and the unidirectional movement distance is more than or equal to 600 mm. In order to realize the stable connection with the tray 311, the number of the columns 92 is 4, 4 columns 92 can be connected to four corners of the base 91, and correspondingly, 4 connecting holes are formed in the tray 311, so that the tray 311 is sleeved on the columns 92 through the connecting holes.
In the above embodiment, the method may further include: a pressing plate 7; wherein, clamp plate 7 sets up in the both sides of test bench 2 for will examine test wire cable sample 1 and compress tightly in test platform 2.
Particularly, clamp plate 7 can be two, and two clamp plates 7 can be installed in the both ends of examining test wire cable sample 1, and two connecting holes are seted up respectively to the both sides of every clamp plate 7, and the connecting hole has also been seted up to corresponding position in track 6, can wear to locate in four connecting holes that correspond on two clamp plates 7 and finally be fixed in the connecting hole in track 6 through four fasteners 8 to examine test wire cable sample 1 and compress tightly in test platform 2's track 6. The fastener 8 can be a pressure diameter screw, and the relationship between the length of the screw and the cable sample 1 to be tested is shown in the following table:
it can be obviously derived that the wire and cable samples 1 to be tested with different outer diameters can be fixed in the test platform by replacing the compression screws with different lengths so as to carry out the scraping test on the wire and cable samples.
The working process of the embodiment is as follows: after the instrument is in place and the power is switched on, the instrument runs without load, and meanwhile, the preparation work before scraping and grinding is well done: and selecting a diameter pressing screw rod with a proper length according to the outer diameter of the wire and cable sample 1 to be detected, and fixing the diameter pressing screw rods at two ends of the track 6. A certain length (for example, 1 meter) of the wire and cable sample 1 to be detected is cut out and placed on a track 6 of the test platform 2 in a horizontal state, and the cut-out wire and cable sample 1 to be detected is pressed by a pressing plate 7 through a diameter screw. After the test sample is compacted, 4 columns 92 are fixed on a base 91 in the track 6, a tray 311 is sleeved on the four columns 92, a V-shaped angle iron scraping grinding head below the tray 311 is in contact with the surface of the wire and cable test sample 1 to be detected, and a counterweight 5 passing through the counterweight is placed in the tray 311. The scraping and grinding speed and the scraping and grinding times are set on a panel of the control system 4, the start-stop button 43 is started, and the motor is controlled to drive the scraping and grinding device 3 to perform a scraping and grinding test.
In conclusion, the vertical acting force of the wire and cable sample to be detected is changed by adding or subtracting the number and the weight of the counterweight 5, and the whole set of equipment is convenient and quick to disassemble and install. The control part adopts the control of touch-sensitive screen PLC, has characteristics such as safe in utilization, convenient operation, degree of automation height to have the function that a key is automatic to accomplish the experiment.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. The utility model provides a wire and cable extrudes oversheath scraping and grinding tester which characterized in that includes:
the test platform (2) is used for placing and fixing the cable sample (1) to be detected;
the scraping and grinding device (3) can slide relative to the test platform (2) and is used for applying scraping and grinding acting forces with different sizes to the wire and cable sample (1) to be detected;
the motor is electrically connected with the scraping device (3) and used for driving the scraping device (3) to scrape the wire and cable test sample (1) to be detected at a preset speed and for a preset number of times along the test platform (2);
and the control system (4) is electrically connected with the motor and is used for controlling the motor to drive the scraping device (3) to scrape and grind the wire and cable sample (1) to be detected for preset times at a preset speed.
2. The wire and cable extruded outer sheath scraping tester according to claim 1, wherein the scraping device (3) comprises: the balance weight body (31) and the scraping head (32) are connected; wherein,
the counterweight body (31) is arranged above the scraping and grinding head (32) and is used for applying different acting forces to the scraping and grinding head (32);
the scraping and grinding head (32) is connected with the bottom of the counterweight body (31) and is used for being in contact with the wire and cable test sample (1) to be detected so as to apply scraping and grinding acting forces with different sizes to the wire and cable test sample.
3. The wire and cable extruded outer sheath scraping and grinding tester as claimed in claim 2, wherein the scraping and grinding head (32) is a V-shaped angle iron.
4. The scratch tester for extruded outer sheaths of wires and cables according to claim 2, wherein the weight body (31) comprises: a tray (311); wherein,
the tray (331) is provided with a groove for placing a counterweight (5).
5. The wire and cable extruded outer jacket scratch and rub tester of claim 4, further comprising: a support body (9); wherein,
one end of the supporting body (9) is slidably connected with the test platform (2), and the other end of the supporting body is connected with the scraping device (3) and used for driving the scraping device (3) to reciprocate along the test platform (2) so as to apply scraping acting forces with different sizes to the wire and cable sample (1) to be detected.
6. The scratch tester for extruded outer sheaths of wires and cables according to claim 5, wherein the support body (9) comprises a base (91) and at least two upright posts (92); wherein,
the base (91) is connected with the test platform (2) in a sliding manner;
each upright (92) is connected to the base (91) for connection with the tray (311).
7. The scratch tester for extruded outer sheaths of electric wires and cables as claimed in any one of claims 2 to 6, wherein the testing platform (2) is provided with a track (6) for enabling the scratch device (3) to slide relative to the testing platform (2).
8. The wire and cable extruded outer jacket scratch and rub tester of claim 7,
the motor is electrically connected with the supporting body (9) and used for driving the supporting body (9) to move back and forth along the track (6).
9. A wire and cable extruded outer jacket scratch tester according to any one of claims 2 to 6, further comprising: a pressure plate (7); wherein,
the pressing plates (7) are arranged on two sides of the test bed (2) and used for pressing the wire and cable test sample (1) to be tested on the test platform (2).
10. A scraper tester for extruded outer sheaths of electric wires and cables according to any one of claims 2 to 6, characterized in that a counting device (41) for recording the scraping times of the scraper device (3) is arranged in the control system (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711483487.3A CN108303336A (en) | 2017-12-29 | 2017-12-29 | A kind of electric wire extrusion oversheath scraped finish tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711483487.3A CN108303336A (en) | 2017-12-29 | 2017-12-29 | A kind of electric wire extrusion oversheath scraped finish tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108303336A true CN108303336A (en) | 2018-07-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711483487.3A Pending CN108303336A (en) | 2017-12-29 | 2017-12-29 | A kind of electric wire extrusion oversheath scraped finish tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108303336A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111024539A (en) * | 2019-12-23 | 2020-04-17 | 北京斯普乐电线电缆有限公司 | Durability detection method for tin plating adhesion of tin-plated copper braided flat wire |
| CN113702227A (en) * | 2021-08-27 | 2021-11-26 | 中国电子产品可靠性与环境试验研究所（（工业和信息化部电子第五研究所）（中国赛宝实验室）） | Cable scraping and grinding test platform |
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| RU2187088C2 (en) * | 2000-09-25 | 2002-08-10 | Андреев Андрей Витальевич | Stand for estimation of wear resistance of protective metal coat of wire |
| DE102012219823B4 (en) * | 2012-01-11 | 2014-04-03 | Sumitomo Wiring Systems, Ltd. | A method of testing the abrasion resistance of a wire sheath material |
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| CN113702227A (en) * | 2021-08-27 | 2021-11-26 | 中国电子产品可靠性与环境试验研究所（（工业和信息化部电子第五研究所）（中国赛宝实验室）） | Cable scraping and grinding test platform |
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Application publication date: 20180720 |