A wear resistance tester for cable specimens

Abstract

The present invention relates to the field of cables, and particularly to a wear resistance testing machine for cable specimens, which includes a testing mechanism. A straightening part is provided on the testing mechanism, and a limiting part is provided at the position corresponding to the straightening part at the top of the workbench; the testing mechanism includes a rotating column with a slideway, a slide rod is slidably connected in the slideway, a support column is fixed at the top of the slide rod, a rotating plate is provided at the top of the support column, and a plate felt pad and a grinding block are provided on the rotating plate. By adding a workbench, a testing mechanism, a straightening part, etc., the first motor is started to drive the plate felt pad and the grinding block to reciprocate, and the grinding block is controlled to contact the outer surface of the cable. The reciprocating grinding block can friction the entire surface of the cable, and the testing effect is better; when the grinding block stops moving, the felt pad is controlled to contact the cable, and the reciprocating plate felt pad can clean the surface of the cable to remove the debris generated during friction, improving the accuracy of weighing after friction, and then improving the accuracy of the wear resistance test.

Description

Technical Field

[0001] The present invention relates to the technical field of cables, and particularly relates to a wear resistance testing machine for cable specimens. Background Art

[0002] A cable is a device for transmitting electrical energy or signals, usually composed of several or several groups of wires. The periphery of the cable is wrapped with an insulating layer composed of a non-conductive insulating material to prevent accidents such as electric leakage and electric shock caused by the contact between the internal wires and the outside world. Since the cable will inevitably rub against external substances during use, in order to ensure the safety of the cable during use, it is necessary to conduct a wear resistance test on the insulating layer of the cable during the production process of the cable.

[0003] During the process of conducting a wear resistance test on the cable sheath, after the friction treatment, generally, the weighing method is used to count the wear amount of the cable sheath. In order to ensure the accuracy of the test results, it is necessary to scrape off the debris on the surface of the cable sheath after the friction treatment; moreover, during actual use, the cable will be subjected to single sliding friction or rotational friction, and may be subjected to both frictions at the same time. The simulation detection of a single friction environment cannot fully reflect the wear resistance of the cable insulating layer, resulting in the influence of the test effect.

[0004] However, the existing wear resistance testing machines for cables are difficult to meet the above requirements, and we have proposed a wear resistance testing machine for cable specimens. Summary of the Invention

[0005] (1) Technical Problems to be Solved

[0006] Aiming at the deficiencies of the prior art, the present invention provides a wear resistance testing machine for cable specimens, which overcomes the problems of insufficient test effect and test accuracy of the existing wear resistance testing machines for cables.

[0007] (2) Technical Solutions

[0008] To achieve the above object, the present invention is realized through the following technical solutions: A wear resistance testing machine for cable specimens, including a workbench. A testing mechanism for detecting the wear resistance of the cable is provided at the top of the workbench. A straightening part for straightening the cable is provided on the testing mechanism, and a limiting part is provided at the position corresponding to the straightening part at the top of the workbench;

[0009] The testing mechanism includes a first motor and a housing installed at the top of the workbench. A rotating column is fixed to the output end of the first motor. A slideway surrounding the whole body is provided on the outer wall of the rotating column. A slide bar is slidably connected in the slideway. A support column is fixed to the top of the slide bar. The support column is slidably connected to the workbench, and a second motor is installed at the top of the support column. A rotating plate is fixed to the output end of the second motor. The rotating plate is rotatably connected to the top of the support column. A first hydraulic rod is installed on one side of the rotating plate. A plate felt pad is fixed to the telescopic end of the first hydraulic rod. A second hydraulic rod is installed on the other side of the rotating plate. A grinding block is fixed to the telescopic end of the second hydraulic rod. The other end of the rotating column is fixed with a support shaft. The other end of the support shaft is rotatably connected to the housing and extends into and is fixed with a connecting sleeve one with a locking screw. A straightening part is provided on the housing. A connecting sleeve two with a locking screw that can rotate is provided on the straightening part;

[0010] The straightening part includes a straightening plate slidably connected to the inner wall of the housing. The connecting sleeve two is rotatably connected to the inner end of the straightening plate. A screw rod is rotatably connected to the outer end of the straightening plate. The other end of the screw rod is threadedly connected to the housing and extends out to be fixed with a turning handle.

[0011] Preferably, a support frame is fixed at the front side position of the workbench corresponding to the rotating column. A frame plate is fixed on the support frame. A slider is slidably connected in the frame plate. The support column is fixedly penetrated by the slider.

[0012] Preferably, the limiting part includes an elastic telescopic rod slidably connected to the top of the workbench. A clamping plate is fixed to the telescopic end of the elastic telescopic rod. A toothed ring is provided on the outer wall of the turning handle. The clamping plate is correspondingly clamped with the toothed ring.

[0013] Preferably, a plurality of support legs are installed at the bottom end of the workbench.

[0014] Preferably, a scraping mechanism for removing the attached debris on the plate felt pad is provided on the workbench. The scraping mechanism includes a sliding frame slidably connected to the top of the workbench. A box body is fixed to the top of the sliding frame. A scraping plate group is fixed to the top of the box body. The workbench is rotatably connected through the bottom end at the rear side position of the box body with a rotating shaft. A third motor is installed at the bottom end of the workbench. The output end of the third motor is fixed to the bottom end of the rotating shaft. A rotating rod is fixed to the top of the rotating shaft. One side of the top of the rotating rod is rotatably connected to a connecting rod. The other end of the connecting rod is rotatably connected to the rear end of the sliding frame.

[0015] Preferably, the scraping mechanism further includes a cylinder body with an incomplete closed bottom end penetrating and fixed on the workbench. A round rod is rotatably connected to the inner wall of the cylinder body. A hose is communicated with the top end of the cylinder body. The other end of the hose is communicated with the box body. A fan blade is fixed to the top of the round rod. The bottom end of the round rod extends out of the cylinder body and is in transmission connection with the rotating shaft. A plurality of air holes are opened at the top of the box body.

[0016] Preferably, a first pulley is fixed to the bottom end of the round rod, and a second pulley is sleeved and fixed to the outer wall of the rotating shaft. A transmission belt is sleeved between the second pulley and the first pulley.

[0017] Preferably, the scraper group includes multiple rows of scrapers, and two adjacent rows of scrapers are arranged staggeredly.

[0018] (III) Advantageous Effects

[0019] The present invention provides a wear resistance tester for cable specimens, which has the following advantageous effects:

[0020] 1. By adding a workbench, a testing mechanism, a straightening part, etc., starting the first motor drives the plate felt pad and the grinding block to reciprocate, controlling the grinding block to contact the outer surface of the cable. The reciprocating grinding block can friction the entire surface of the cable, and through sliding and rotational friction, the testing effect is better; after the grinding block stops moving, controlling the felt pad to contact the cable, the reciprocating plate felt pad can clean the surface of the cable, removing the debris generated during friction, improving the accuracy of weighing after friction, and thus improving the accuracy of the wear resistance test;

[0021] 2. By adding a straightening part, after the cable is locked by the locking screw, turning the turning handle drives the screw rod to rotate, and then drives the straightening plate and the second connecting sleeve to move, making the cable straight, which is convenient for the wear resistance test;

[0022] 3. By adding a limiting part, after the cable is straightened, pressing down the clamping plate and moving it below the toothed ring, and then releasing the hand, the clamping plate moves upward to be clamped with the toothed ring, effectively preventing the turning handle from deflecting, resulting in the cable from loosening and bending, which affects the normal friction of the grinding block on the cable;

[0023] 4. By adding a scraping mechanism, the reciprocating movement of the scraper group on it scrapes the debris on the plate felt pad, and then controlling the plate felt pad to contact and clean the surface of the cable. At the same time, the scraped debris is also sucked out, improving the cleaning effect on the surface of the cable;

[0024] In summary, the present invention can friction the entire surface of the cable, with a better testing effect, and by removing the debris on the surface of the cable, the accuracy of the wear resistance test is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a schematic structural diagram of the present invention;

[0026] Figure 2 is a schematic structural diagram of another perspective of the present invention;

[0027] Figure 3 is the present invention Figure 1 in which the enlarged schematic diagram of structure A;

[0028] Figure 4 is the present invention Figure 2Schematic enlarged view of structure B;

[0029] Figure 5 Separation diagram of the limit part structure of the present invention;

[0030] Figure 6 Front view of the structure of the present invention;

[0031] Figure 7 For the present invention Figure 6 Schematic enlarged view of structure C;

[0032] Figure 8 Schematic diagram of the scraping mechanism structure of the present invention;

[0033] Figure 9 Cross-sectional view of the cylinder structure of the present invention.

[0034] In the figure: 1 - workbench, 2 - testing mechanism, 21 - motor 1, 22 - rotating column, 23 - slideway, 24 - slide bar, 25 - support column, 26 - frame plate, 27 - slider, 28 - motor 2, 29 - rotating plate, 210 - hydraulic rod 1, 211 - plate felt pad, 212 - hydraulic rod 2, 213 - grinding block, 214 - support shaft, 215 - housing, 216 - connecting sleeve 1, 217 - connecting sleeve 2, 218 - support frame, 3 - straightening part, 31 - straightening plate, 32 - screw rod, 33 - turning handle, 4 - limit part, 41 - elastic telescopic rod, 42 - clamping plate, 43 - toothed clamping ring, 5 - scraping mechanism, 51 - sliding frame, 52 - box body, 53 - air hole, 54 - scraping plate, 55 - connecting rod, 56 - rotating rod, 57 - rotating shaft, 58 - motor 3, 59 - cylinder, 510 - hose, 511 - round rod, 512 - fan blade, 513 - pulley 1, 514 - pulley 2, 515 - transmission belt. Detailed implementation method

[0035] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0036] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0037] Embodiment 1

[0038] As shown in Figures 1-9, a wear resistance testing machine for cable specimens includes a workbench 1. Here, a plurality of support legs are installed at the bottom of the workbench 1, and a testing mechanism 2 for detecting the wear resistance of the cable is provided at the top of the workbench 1. A straightening part 3 for stretching the cable is provided on the testing mechanism 2, and a limiting part 4 corresponding to the straightening part 3 is provided at the top of the workbench 1; among them, the limiting part 4 positions the rotary handle 33 in the straightening part 3 to prevent it from deflecting.

[0039] The testing mechanism 2 includes a motor one 21 and a housing 215 installed at the top of the workbench 1. A rotating column 22 is fixed to the output end of the motor one 21. A slideway 23 surrounding its whole body is opened on the outer wall of the rotating column 22. A slide bar 24 is slidably connected in the slideway 23. The top of the slide bar 24 is fixed with a support column 25. The support column 25 is slidably connected to the workbench 1, and a motor two 28 is installed at the top of the support column 25. A rotating plate 29 is fixed to the output end of the motor two 28. The rotating plate 29 is rotatably connected to the top of the support column 25, and a hydraulic rod one 210 is installed on one side of the rotating plate 29. A plate felt pad 211 is fixed to the telescopic end of the hydraulic rod one 210. A hydraulic rod two 212 is installed on the other side of the rotating plate 29. A grinding block 213 is fixed to the telescopic end of the hydraulic rod two 212. The other end of the rotating column 22 is fixed with a support shaft 214. The other end of the support shaft 214 is rotatably connected to the housing 215 and extends into and is fixed with a connection sleeve one 216 with a locking screw. A straightening part 3 is provided on the housing 215, and a connection sleeve two 217 with a locking screw that can rotate is provided on the straightening part 3. Here, the two ends of the cable are respectively inserted into the connection sleeve one 216 and the connection sleeve two 217, and then fixed with the locking screw. Control the straightening part 3 to straighten the cable. Start the motor one 21 to drive the rotating column 22 to rotate, thereby driving the support shaft 214 to rotate, and then drive the connection sleeve one 216, the connection sleeve two 217 and the cable thereon to rotate. At the same time, through the action of the slideway 23, drive the slide bar 24 to reciprocate, thereby driving the support column 25 to reciprocate, and the rotating plate 29 reciprocates accordingly, and the plate felt pad 211 and the grinding block 213 also reciprocate accordingly. At this time, control the hydraulic rod two 212 to drive the grinding block 213 thereon to move down and contact the outer surface of the cable. The reciprocating grinding block 213 can perform wear resistance testing on the cable, realizing the overall wear resistance testing of the outer surface of the cable, being subjected to sliding and rotational friction, and the testing effect is better.

[0040] The straightening part 3 includes a straightening plate 31 slidably connected to the inner wall of the housing 215. The connection sleeve two 217 is rotatably connected to the inner end of the straightening plate 31. The outer end of the straightening plate 31 is rotatably connected with a screw rod 32. The other end of the screw rod 32 is threadedly connected to the housing 215 and extends out and is fixed with a rotary handle 33. After the cable is locked with the locking screw, rotate the rotary handle 33 to drive the screw rod 32 to rotate, and then drive the straightening plate 31 and the connection sleeve two 217 thereon to move away from the connection sleeve one 216, so that the cable is straightened, facilitating the progress of wear resistance testing.

[0041] In summary, after the grinding block 213 stops moving, control the second hydraulic rod 212 to drive the grinding block 213 back to its original position, start the second motor 28 to drive the rotating plate 29 to rotate, and then drive the plate felt pad 211 to rotate to the position above the cable. Start the first hydraulic rod 210 to drive the plate felt pad 211 to move down and contact the cable. The reciprocating plate felt pad 211 can clean the surface of the cable, remove the debris generated during friction, improve the accuracy of weighing after friction, make the calculated wear amount more accurate, and then improve the accuracy of the wear resistance test.

[0042] In this embodiment, a support frame 218 is fixed at the front side position of the workbench 1 corresponding to the rotating column 22. A frame plate 26 is fixed on the support frame 218. A slider 27 is slidably connected in the frame plate 26. The support column 25 is fixedly penetrated with the slider 27.

[0043] Specifically, the limiting part 4 includes an elastic telescopic rod 41 slidably connected to the top end of the workbench 1. A clamping plate 42 is fixed at the telescopic end of the elastic telescopic rod 41. A toothed ring 43 is provided on the outer wall of the rotary handle 33. The clamping plate 42 is correspondingly clamped with the toothed ring 43. Rotate the rotary handle 33. After the cable is straightened, press down the clamping plate 41 and move it to the position below the toothed ring 43. Slowly release the hand. The clamping plate 41 moves up and is clamped with the toothed ring 43 to prevent the rotary handle 33 from deflecting and causing the cable to loosen and bend, which affects the normal friction of the grinding block 213 on the cable.

[0044] Embodiment 2

[0045] On the basis of Example 1, a scraping mechanism 5 for removing debris attached to the plate felt pad 211 is provided on the workbench 1, and the scraping mechanism 5 includes a slide 51 slidably connected to the top of the workbench 1, a box body 52 is fixed to the top of the slide 51, and a scraper group is fixed to the top of the box body 52. ​​The workbench 1 is located at the rear side of the box body 52 and is rotatably connected with a rotating shaft 57, and a motor 3 58 is installed at the bottom end of the workbench 1, and the output end of the motor 3 58 is fixed to the bottom end of the rotating shaft 57, and a rotating rod 56 is fixed to the top of the rotating shaft 57, and a connecting rod 55 is rotatably connected to one side of the top of the rotating rod 56, and the other end of the connecting rod 55 is rotatably connected to the rear end of the slide 51. The plate felt pad 211 cleans the surface of the cable, and a large amount of debris will adhere to it. When the plate felt pad 211 continues to clean, the debris on it will reattach to the cable. At this time, the motor 21 is turned off to drive the plate felt pad 211 to rotate to the top of the box body 52, and the hydraulic rod 212 is started to drive the plate felt pad 211 to move down and contact with the scraper group. The motor 3 58 is started to drive the rotating shaft 57 to rotate, and then the rotating rod 56 is driven to rotate. Through the transmission of the connecting rod 55, the slide 51 is driven to reciprocate, thereby driving the box body 52 and the scraper group thereon to reciprocate, and the debris on the plate felt pad 211 is scraped off. Then the plate felt pad 211 is controlled to contact with the cable surface, and the motor 21 is started to clean the cable surface again. The above operation can be repeated many times to improve the cleaning effect of the cable surface.

[0046] Specifically, the scraper group includes multiple rows of scrapers 54, and the scrapers 54 in two adjacent rows are staggered.

[0047] Example 3

[0048] On the basis of Example 2, the scraping mechanism 5 also includes a cylinder 59 with an incompletely closed bottom end that passes through and is fixed on the workbench 1. A round rod 511 is rotatably connected to the inner wall of the cylinder 59, and a hose 510 is connected to the top of the cylinder 59. The other end of the hose 510 is connected to the box body 52. ​​A fan blade 512 is fixed to the top of the round rod 511, and the bottom end of the round rod 511 extends out of the cylinder 59 and is transmission-connected to the rotating shaft 57. A plurality of air holes 53 are provided at the top of the box body 52.

[0049] In this embodiment, a pulley 1 513 is fixed to the bottom end of the round rod 511 , a pulley 2 514 is sleeved and fixed to the outer wall of the rotating shaft 57 , and a transmission belt 515 is sleeved between the pulley 2 514 and the pulley 1 513 .

[0050] In summary, the rotating shaft 57 rotates, and through the transmission of the pulley 1 513, the pulley 2 514 and the transmission belt 515, the round rod 511 is driven to rotate, thereby driving the fan blades 512 to rotate, and the cleaned debris is sucked into the box body 52 from the air hole 53 and then discharged, preventing the debris from re-attaching to the board felt pad 211, thereby improving the cleaning effect of the board felt pad 211.

[0051] All kinds of components used in this application document are standard parts and can be purchased from the market. The specific connection methods of each part all adopt conventional means such as bolts, rivets and welding that are mature in the prior art. The machinery, parts and electrical equipment all adopt conventional models in the prior art.

[0052] The embodiments disclosed in the present invention are preferred embodiments, but not limited thereto. Those of ordinary skill in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not depart from the spirit of the present invention, they are within the protection scope of the present invention.

Claims

1. A wear resistance testing machine for cable specimens, comprising a workbench (1), Characterized in that: A testing mechanism (2) for detecting the wear resistance of the cable is provided at the top of the workbench (1). A straightening part (3) for opening the cable is provided on the testing mechanism (2), and a limiting part (4) is provided at the position corresponding to the straightening part (3) at the top of the workbench (1); The testing mechanism (2) includes a first motor (21) and a housing (215) installed at the top of the workbench (1). A rotating column (22) is fixed to the output end of the first motor (21). A slideway (23) surrounding its whole body is provided on the outer wall of the rotating column (22). A slide rod (24) is slidably connected in the slideway (23). A support column (25) is fixed to the top of the slide rod (24). The support column (25) is slidably connected to the workbench (1). A second motor (28) is installed at the top of the support column (25). A rotating plate (29) is fixed to the output end of the second motor (28). The rotating plate (29) is rotatably connected to the top of the support column (25). A first hydraulic rod (210) is installed on one side of the rotating plate (29). A plate felt pad (211) is fixed to the telescopic end of the first hydraulic rod (210). A second hydraulic rod (212) is installed on the other side of the rotating plate (29). A grinding block (213) is fixed to the telescopic end of the second hydraulic rod (212). The other end of the rotating column (22) is fixed with a support shaft (214). The other end of the support shaft (214) is rotatably connected to the housing (215) and extends into and is fixed with a connecting sleeve one (216) with a locking screw. A straightening part (3) is provided on the housing (215). A connecting sleeve two (217) with a locking screw that can rotate is provided on the straightening part (3); The straightening part (3) includes a straightening plate (31) slidably connected to the inner wall of the housing (215). The connecting sleeve two (217) is rotatably connected to the inner end of the straightening plate (31). A screw rod (32) is rotatably connected to the outer end of the straightening plate (31). The other end of the screw rod (32) is threadedly connected to the housing (215) and extends out to be fixed with a turning handle (33).

2. A wear resistance testing machine for cable specimens according to claim 1, Characterized in that: A support frame (218) is fixed at the front side position of the workbench (1) corresponding to the rotating column (22). A frame plate (26) is fixed on the support frame (218). A slider (27) is slidably connected in the frame plate (26). The support column (25) is fixedly penetrated through the slider (27).

3. A wear resistance testing machine for cable specimens according to claim 2, Characterized in that: The limiting part (4) includes an elastic telescopic rod (41) slidably connected to the top of the workbench (1). A clamping plate (42) is fixed to the telescopic end of the elastic telescopic rod (41). A tooth engaging ring (43) is provided on the outer wall of the turning handle (33). The clamping plate (42) is correspondingly clamped with the tooth engaging ring (43).

4. A wear resistance testing machine for cable specimens according to claim 1, Characterized in that: A plurality of support legs are installed at the bottom of the workbench (1).

5. A wear resistance testing machine for cable specimens according to claim 1, It is characterized in that: A scraping mechanism (5) for removing attached debris on the plate felt pad (211) is provided on the workbench (1). The scraping mechanism (5) includes a carriage (51) slidably connected to the top end of the workbench (1). A box body (52) is fixed to the top end of the carriage (51). A scraper group is fixed to the top end of the box body (52). A rotating shaft (57) is rotatably connected through the workbench (1) at a position behind the box body (52). A third motor (58) is installed at the bottom end of the workbench (1). The output end of the third motor (58) is fixed to the bottom end of the rotating shaft (57). A rotating rod (56) is fixed to the top end of the rotating shaft (57). One side of the top end of the rotating rod (56) is rotatably connected to a connecting rod (55). The other end of the connecting rod (55) is rotatably connected to the rear end of the carriage (51).

6. A wear resistance testing machine for cable specimens according to claim 5, It is characterized in that: The scraping mechanism (5) further includes a cylinder body (59) with an incomplete bottom end fixed through the workbench (1). A round rod (511) is rotatably connected to the inner wall of the cylinder body (59). A hose (510) is communicated with the top end of the cylinder body (59). The other end of the hose (510) is communicated with the box body (52). A fan blade (512) is fixed to the top end of the round rod (511). The bottom end of the round rod (511) extends out of the cylinder body (59) and is in transmission connection with the rotating shaft (57). A plurality of air holes (53) are opened at the top end of the box body (52).

7. A wear resistance testing machine for cable specimens according to claim 6, It is characterized in that: A first belt pulley (513) is fixed to the bottom end of the round rod (511). A second belt pulley (514) is sleeved and fixed on the outer wall of the rotating shaft (57). A transmission belt (515) is sleeved between the second belt pulley (514) and the first belt pulley (513).

8. A wear resistance testing machine for cable specimens according to claim 5, It is characterized in that: The scraper group includes multiple rows of scrapers (54), and two adjacent rows of scrapers (54) are arranged staggeredly.

Images