A wear-resistant detection device for low-voltage cable production

Abstract

The application relates to the technical field of cable detection, and discloses a wear-resistant detection device for low-voltage cable production, which comprises a wear-resistant detection machine body, a detection scraper arranged on the wear-resistant detection machine body and capable of reciprocating and moving horizontally, a containing cabinet, a hot water circulation structure and a transverse moving groove frame. The containing cabinet is arranged on the wear-resistant detection machine body, a hollow cylinder seat is rotationally arranged in the containing cabinet, a winding traction structure is arranged between the hollow cylinder seat and the containing cabinet, a wire core sample is wound on the hollow cylinder seat through the winding traction structure, the hot water circulation structure is arranged between the inside of the containing cabinet and the hollow cylinder seat, the wire core sample wound on the hollow cylinder seat is softened, the transverse moving groove frame is arranged on the wear-resistant detection machine body, and a side clamping assembly is slidably arranged on the transverse moving groove frame. Through the technical scheme, the problem that the wear-resistant detection device in the prior art is difficult to ensure sufficient wear-resistant precision detection of the curved wire core is solved.

Description

Technical Field

[0001] This invention relates to the field of cable testing technology, and more specifically, to an abrasion resistance testing device for low-voltage cable production. Background Technology

[0002] Low-voltage cables refer to power cables with a rated voltage of 0.6 / 1KV or below. They are commonly used for power transmission in indoor or electrical equipment environments and are the most common power cables in existing technology. In the actual production process of low-voltage cables, solid metal conductors or stranded conductors are first used as the conductor structure. Then, an insulation layer is processed on the outside of the conductor structure using an extrusion process to obtain the insulated core. The insulation layer material commonly used in existing low-voltage cables is cross-linked polyethylene insulation layer or polyvinyl chloride insulation layer to provide sufficient insulation protection for the conductor structure. If the low-voltage cable to be produced requires multiple cores to be cabled, filler is used to assist in the process of stranding multiple insulated cores together through a cabling process. Depending on the actual use requirements, a shielding layer and an armor layer can be added to the outside of the cores. Finally, a sheath layer is extruded on the outside of the multiple cabled cores to complete the production process of the low-voltage cable.

[0003] In existing technologies, to ensure that low-voltage cables have sufficient wear resistance and prevent conductor leakage due to damage to the outer insulation layer during laying and long-term use, the wear resistance testing process for low-voltage cables during production generally focuses on testing the surface of the insulation layer after processing the outer insulation layer to ensure stable use of the low-voltage cable in the later stages.

[0004] Among the existing technologies, the equipment used for abrasion resistance testing of the inner insulation layer of low-voltage cables mainly includes two types. One type is a sand belt abrasion testing device, which drives a sand belt to circulate and keep it in constant contact with the insulation layer until the insulation layer is completely worn away and the conductor is exposed, thereby judging the abrasion resistance of the insulation layer. The other type is a scraper abrasion testing device, which makes a scraper contact one side of the insulation layer and drives the scraper to move back and forth, keeping the scraper in contact with one side of the insulation layer until the insulation layer is broken and the conductor is exposed. The abrasion resistance of the insulation layer is judged by detecting the movement distance of the scraper.

[0005] However, when actually using abrasion testing devices to test the insulation layer, firstly, during the extrusion insulation process on the outside of the conductor structure, a winding device is used to wind the wire core. Because the wire core of low-voltage cables is small in size, its resistance to deformation is poor. This makes it difficult to fully straighten the wound insulation wire core, especially in cold environments, where it is even more difficult to keep the insulation wire core straight. This makes it difficult to ensure that the sanding belt or scraper is always in contact with the insulation layer during transmission, affecting the accuracy of abrasion resistance testing of the wire core insulation layer. Summary of the Invention

[0006] This invention proposes an abrasion resistance testing device for low-voltage cable production, which solves the problem that existing abrasion resistance testing devices have difficulty ensuring sufficient abrasion resistance accuracy for bent wire cores.

[0007] The technical solution of the present invention is as follows: A wear resistance testing device for low-voltage cable production, comprising a wear resistance testing machine body, wherein a testing scraper is reciprocatingly and laterally moved on the wear resistance testing machine body, and further comprising:

[0008] The housing is mounted on the wear resistance testing machine body. A hollow cylinder seat is rotatably mounted inside the housing. A winding and traction structure is provided between the hollow cylinder seat and the housing. The wire core sample is wound onto the hollow cylinder seat by the winding and traction structure.

[0009] A hot water circulation structure is provided between the interior of the housing and the hollow cylinder base to soften the wire core sample wound on the hollow cylinder base.

[0010] A transverse sliding groove frame is provided on the body of the wear resistance testing machine. A side clamping component is slidably provided on the transverse sliding groove frame to clamp the side of the wire core sample, so that the wire core sample extends at the bottom of the testing scraper.

[0011] The wire core support structure is provided on the transverse sliding groove frame to support the wire core sample on the side opposite to the detection scraper.

[0012] The winding and traction structure includes a cable tray frame, a traction rope, and a connecting drive assembly. The cable tray frame is disposed inside the housing housing. A transmission screw is rotatably connected to the cable tray frame. A lead wire drum seat is slidably disposed on the cable tray frame. The lead wire drum seat is driven by the transmission screw. The traction rope is wound on the hollow drum seat. One side of the traction rope is connected to the wire core sample, driving the wire core sample to be wound onto the hollow drum seat. The connecting drive assembly is disposed between the hollow drum seat and the transmission screw, so that the transmission screw rotates in the same direction as the hollow drum seat.

[0013] A connecting sleeve is provided on one side of the traction rope, and a tensioning clamp is provided inside the connecting sleeve. One side of the wire core sample is connected to the tensioning clamp.

[0014] The connecting drive assembly includes a transmission wheel and a mounting bracket. The transmission wheel is provided on the same side of the hollow cylinder seat and the transmission screw. A transmission belt is provided between the two transmission wheels. The mounting bracket is provided inside the housing. A support wheel is provided on the top of the mounting bracket. The support wheel is in transmission cooperation with the transmission belt.

[0015] The housing is equipped with a cylindrical steering structure for adjusting the winding or unwinding direction of the wire core sample. The cylindrical steering structure includes a rotating bracket and a fastening cylinder seat. The rotating bracket is located inside the housing, and the steering cylinder seat is rotatably mounted on the top of the rotating bracket. The traction rope or wire core sample passes through the steering cylinder seat. The fastening cylinder seat is concentrically mounted on one side of the steering cylinder seat. A tensioning tube is connected between the fastening cylinder seat and the steering cylinder seat. The housing is provided with a right-angled through slot, and semi-circular sleeves are provided on both sides of the right-angled through slot. The fastening cylinder seat is engaged with the semi-circular sleeves.

[0016] The hot water circulation structure includes a hot water tank, a delivery pump, a partition cylinder, and an annular water injection cylinder. The hot water tank is housed within the housing and has a heating device. The delivery pump is located on one side of the hot water tank, and its input end is connected to the hot water tank. The partition cylinder is fixedly connected within the hollow cylinder base. A water delivery area is formed between the outer arc surface of the partition cylinder and the inner wall of the hollow cylinder base. A water return area is formed on the inner arc surface of the partition cylinder. A water return pipe connects the water return area to the hot water tank. The annular water injection cylinder is rotatably mounted on one side of the hollow cylinder base and is connected to the output end of the delivery pump. Multiple water injection pipes are connected to the annular water injection cylinder, and these pipes extend into the water delivery area.

[0017] A sliding bracket is slidably connected to the transverse sliding slot frame, and a screw drive structure is provided on the transverse sliding slot frame to drive the sliding bracket to move laterally. The side clamping assembly is located on the top of the sliding bracket.

[0018] The side clamping assembly includes a clamping sleeve seat, which is disposed on the top of the sliding bracket. The bottom of the clamping sleeve seat is provided with a sloping groove. A compression support is provided inside the clamping sleeve seat. The compression support compresses the end of the wire core sample into the sloping groove and clamps the end of the wire core sample.

[0019] The core support structure includes a mounting slot and a flipping bracket. The mounting slot is fixedly connected to the transverse slot and is located directly below the inspection tool. Multiple rotating shaft supports are provided inside the mounting slot, and multiple mounting rotating shafts are provided on the rotating shaft supports. An elastic element is provided between the mounting rotating shafts and the rotating shaft supports. Each mounting rotating shaft is provided with the flipping bracket, and an abutment wheel is rotatably connected to the flipping bracket. The abutment wheel abuts against the core sample.

[0020] The sliding bracket is provided with a sloped fixed support, which is used to press the flipping bracket back into the mounting slot.

[0021] The mounting slot has an unwinding shaft seat on the side away from the housing. Multiple winding drums are rotatably mounted on the unwinding shaft seat. Fastening straps are wound on the winding drums and connected to the sloped fixed support. The fastening straps move on the top side of the multiple flipping brackets to confine the flipping brackets within the mounting slot.

[0022] The working principle and beneficial effects of this invention are as follows:

[0023] Before performing abrasion resistance testing on the wire core sample, this invention first connects the wire core sample to a traction rope, and then winds the wire core sample into a hollow cylinder seat inside the housing. Using a hot water circulation structure, hot water circulates between the water supply area and the return area within the hollow cylinder seat. The heat softens the wire core sample, allowing the abrasion resistance testing machine to fully straighten the wire core sample in a cold environment. This ensures that the testing scraper can fully contact the surface of the wire core sample, improving the accuracy of abrasion resistance testing.

[0024] In order to provide sufficient support for the bottom of the core sample when the core sample moves along the bottom of the detection scraper, and to prevent the core sample from shifting downwards during repeated reciprocating movements of the detection scraper, the corresponding flip bracket that releases the restriction flips upwards when the core sample extends, supporting the core sample and preventing it from shifting downwards during the detection process. Attached Figure Description

[0025] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0026] Figure 1 This is a schematic diagram of the structure of an abrasion resistance testing device for low-voltage cable production disclosed in this invention;

[0027] Figure 2 For the present invention Figure 1 A structural schematic diagram of the body of the wear-resistant testing machine from another perspective;

[0028] Figure 3 For the present invention Figure 1 A schematic diagram of the structure of the inspection scraper, transverse slide block, and drive cylinder equipment;

[0029] Figure 4 For the present invention Figure 1 A structural diagram showing the internal housing, hollow cylinder base, transverse sliding frame, and hot water circulation structure;

[0030] Figure 5 For the present invention Figure 4 A magnified structural diagram of point A in the middle;

[0031] Figure 6 For the present invention Figure 1 A structural diagram showing the internal housing, hollow cylinder base, hot water circulation structure, and traction structure;

[0032] Figure 7 For the present invention Figure 4 A partial cross-sectional structural diagram of the hollow cylinder base, the partition cylinder layer, the water conveyance area, and the water return area;

[0033] Figure 8 For the present invention Figure 1 A schematic diagram of the structure of the mounting bracket, the flipping bracket, the sliding bracket, the clamping cylinder seat, the sloping groove and the extrusion support;

[0034] Figure 9 For the present invention Figure 8 A schematic diagram of the structure of the rotating shaft support, mounting shaft, elastic element, tilting bracket and abutment wheel.

[0035] In the diagram: 1. Abrasion resistance testing machine body; 2. Testing scraper; 3. Housing; 4. Hollow cylinder base; 5. Transverse moving trough frame; 6. Transverse slide block; 7. Drive cylinder device;

[0036] 101. Cable tray frame; 102. Drive screw; 103. Lead wire drum seat; 104. Traction rope;

[0037] 111. Connecting insert; 112. Tightening clamp;

[0038] 121. Drive wheel; 122. Drive belt; 123. Mounting bracket; 124. Support wheel;

[0039] 201. Rotating bracket; 202. Diverting sleeve seat; 203. Fastening sleeve seat; 204. Stretching sleeve;

[0040] 301. Hot water tank; 302. Transfer pump equipment; 303. Partition cylinder layer; 304. Water supply area; 305. Water return area; 306. Water return pipeline; 307. Annular water injection cylinder;

[0041] 401. Sliding bracket; 402. Screw drive structure;

[0042] 501. Clamping sleeve seat; 502. Sloping groove; 503. Extrusion support;

[0043] 601. Mounting slot frame; 602. Rotary shaft support; 603. Mounting shaft; 604. Elastic element; 605. Tilting bracket; 606. Abutment wheel;

[0044] 701. Sloping fixed support; 702. Unwinding shaft seat; 703. Rewinding drum; 704. Fastening belt. Detailed Implementation

[0045] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0046] This embodiment proposes an abrasion resistance testing device for low-voltage cable production. Please refer to [link / reference]. Figures 1 to 3 The device includes an abrasion resistance testing machine body 1, on which a testing scraper 2 is reciprocating laterally. A transverse slide 6 is also mounted on the abrasion resistance testing machine body 1. The testing scraper 2 is driven by a screw drive structure within the transverse slide 6, which drives the testing scraper 2 to move laterally within a specified range. The abrasion resistance testing device also includes a drive cylinder device 7, whose output end is connected to the top of the transverse slide 6, driving the transverse slide 6 and the testing scraper 2 to move longitudinally, so that the bottom of the testing scraper 2 comes into contact with the wire core sample. Through the system control of the abrasion resistance testing machine body 1, the testing blade can be driven to move repeatedly at a corresponding distance to determine whether the insulation layer of the wire core sample will be damaged and the conductor exposed after a specified number of reciprocating frictions by the testing blade, thereby judging the abrasion resistance performance of the wire core sample.

[0047] Also includes housing chassis 3, please refer to Figure 4 The housing 3 is mounted on the wear resistance testing machine body 1. A hollow cylinder seat 4 is rotatably mounted inside the housing 3. A rotating slot frame is also mounted inside the housing 3. The hollow cylinder seat 4 is rotatably mounted inside the rotating slot frame. The housing 3 is also equipped with a motor drive device that drives the hollow cylinder seat 4 to rotate inside the rotating slot frame. The output end of the motor drive device is connected to the hollow cylinder seat 4, which drives the hollow cylinder seat 4 to rotate, thereby winding or unwinding the traction rope 104 and the wire core sample.

[0048] To ensure the wire core sample is evenly wound onto the outside of the hollow cylinder 4 and to allow the sample to fully contact the outer wall of the 4, a winding traction structure is provided between the hollow cylinder 4 and the housing 3. Please refer to [link / reference needed]. Figure 6The wire core sample is wound onto the hollow cylinder seat 4 by a winding traction structure. The winding traction structure includes a wire tray frame 101, a traction rope 104, and a connecting drive assembly. The wire tray frame 101 is set inside the housing 3. A transmission screw 102 is rotatably connected to the wire tray frame 101. A lead wire cylinder seat 103 is slidably set on the wire tray frame 101. The lead wire cylinder seat 103 is driven by the transmission screw 102. During the rotation of the hollow cylinder seat 4, the transmission screw 102 is driven to rotate inside the wire tray frame 101, causing the lead wire cylinder seat 103 to move laterally on the wire tray frame 101. This adjusts the winding position of the traction rope 104 and the wire core sample during the winding process, so that the traction rope 104 and the wire core sample are evenly and flatly wound onto the hollow cylinder seat 4.

[0049] A traction rope 104 is wound on the hollow cylinder base 4. One side of the traction rope 104 is connected to the wire core sample, which drives the wire core sample to be wound onto the hollow cylinder base 4. A connecting insert 111 is provided on one side of the traction rope 104. A tension clamp 112 is provided inside the connecting insert 111. One side of the wire core sample is connected to the tension clamp 112. In order to wind the wire core sample onto the hollow cylinder base 4, the connecting insert 111 on one side of the traction rope 104 moves into the fastening cylinder base 203. Then, one side of the wire core sample is inserted into the connecting insert 111 and connected to the tension clamp 112. When the traction rope 104 moves, it passes through the turning cylinder base 202, the tension sleeve 204 and the fastening cylinder base 203. During the winding process of the traction rope 104 onto the hollow cylinder base 4, the wire core sample also passes through the turning cylinder base 202, the tension sleeve 204 and the fastening cylinder base 203, so that the wire core sample is wound onto the hollow cylinder base 4.

[0050] A connecting drive assembly is provided between the hollow cylindrical base 4 and the transmission screw 102, so that the transmission screw 102 rotates in the same direction as the hollow cylindrical base 4. The connecting drive assembly includes a transmission wheel 121 and a mounting bracket 123. Transmission wheels 121 are provided on the same side of both the hollow cylindrical base 4 and the transmission screw 102. A transmission belt 122 is provided between the two transmission wheels 121. A mounting bracket 123 is provided inside the housing 3. A support wheel 124 is provided on the top of the mounting bracket 123. The support wheel 124 is in transmission cooperation with the transmission belt 122. During the rotation of the hollow cylindrical base 4, the transmission screw 102 is driven to rotate through the transmission connection between the transmission wheel 121 and the transmission belt 122. The support wheel 124 can support the transmission belt 122. Since the two transmission wheels 121 are not the same size, in order to support the transmission belt 122, the transmission belt 122 and the two transmission wheels 121 maintain a sufficient contact area.

[0051] The housing 3 is equipped with a cylindrical steering structure; please refer to [link / reference]. Figure 5 and Figure 6This device is used to adjust the winding or unwinding direction of the wire core sample. The cylindrical steering structure includes a rotating bracket 201 and a fastening drum seat 203. The rotating bracket 201 is housed within the housing 3. A steering drum seat 202 is rotatably mounted on the top of the rotating bracket 201. The traction rope 104 or the wire core sample passes through the steering drum seat 202. A fastening drum seat 203 is concentrically mounted on one side of the steering drum seat 202. A tensioning drum 204 connects the fastening drum seat 203 and the steering drum seat 202. A right-angled through-slot is provided on the housing 3, and semi-circular sleeves are provided on both sides of the right-angled through-slot. The fastening drum seat 203 engages with the semi-circular sleeves. By moving the traction rope 104 within the steering drum seat 202, the tensioning drum 204, and the fastening drum seat 203, the subsequent wire core sample is also... The inside of the steering drum seat 202, the stretching drum 204, and the fastening drum seat 203 moves so that after the wire core sample is wound onto the hollow drum seat 4, the side of the wire core sample is also located inside the steering drum seat 202, the stretching drum 204, and the fastening drum seat 203. When it is necessary to extend the wire core sample at the bottom of the detection scraper 2, the fastening drum seat 203, the stretching drum 204, and the rotating drum seat are driven to rotate together along the top axis of the rotating bracket 201, so that the fastening drum seat 203, the stretching drum 204, and the rotating drum seat face the mounting slot 601, and then the wire core sample can be extended on the upper side of the mounting slot 601, while the fastening drum seat 203 can be kept fixed in the semi-circular sleeve, and the wire core sample can move stably within the fastening drum seat 203, the stretching drum 204, and the rotating drum seat.

[0052] A hot water circulation structure is provided between the interior of the housing 3 and the hollow cylindrical base 4. Please refer to [link / reference]. Figure 6 and Figure 7The sample of the coiled wire on the hollow cylinder seat 4 is softened. The hot water circulation structure includes a hot water tank 301, a delivery pump device 302, a partition cylinder layer 303, and an annular water injection cylinder 307. The hot water tank 301 is set inside the housing 3 and has a heating device. The delivery pump device 302 is set on one side of the hot water tank 301, and the input end of the delivery pump device 302 is connected to the hot water tank 301. The partition cylinder layer 303 is fixedly connected inside the hollow cylinder seat 4. A water delivery area 304 is formed between the outer arc surface of the partition cylinder layer 303 and the inner wall of the hollow cylinder seat 4. A water return area 305 is formed by the inner arc surface of the partition cylinder layer 303. A water return pipe 306 is connected between the water return area 305 and the hot water tank 301. The annular water injection cylinder 307 is rotatably set in the middle. On one side of the hollow cylinder seat 4, the annular water injection cylinder 307 is connected to the output end of the delivery pump device 302. Multiple water injection pipes are connected to the annular water injection cylinder 307, which extends into the water delivery area 304. When it is necessary to use the heat of hot water to soften the wire core sample wound on the outside of the hollow cylinder seat 4, the hot water heated in the hot water tank 301 is delivered to the annular water injection cylinder 307 through the delivery pump device 302. The hot water is injected into the water delivery area 304 through the multiple water injection pipes. The water delivery area 304 is in contact with the outer wall of the hollow cylinder seat 4, so that the heat of the hot water is quickly transferred to the surface of the hollow cylinder seat 4. Because the outer insulation layer of the wire core sample has good heat resistance, the heat of the hot water alone will not damage the outer insulation layer of the wire core sample.

[0053] During the flow of hot water in the water supply area 304, the cooled hot water will enter the return water area 305 on the inner arc surface of the partition cylinder layer 303. The hot water will eventually flow back to the hot water tank 301 through the return water pipe 306 to continue heating and circulating the hot water. The hot water tank 301 is connected to a water supply pipe, and water will be replenished to the hot water tank 301 through the water supply pipe after water loss occurs.

[0054] The wear resistance testing machine body 1 is equipped with a transverse sliding frame 5, please refer to [link / reference]. Figure 8A side clamping assembly is slidably mounted on the transverse sliding slot 5 to clamp the side of the wire core sample, allowing the wire core sample to extend at the bottom of the detection scraper 2. A sliding bracket 401 is slidably connected to the transverse sliding slot 5, and a screw drive structure 402 is provided on the transverse sliding slot 5 to drive the sliding bracket 401 to move laterally. The side clamping assembly is located on the top of the sliding bracket 401. When it is necessary to unfold the wire core sample on the top of the mounting slot 601, the side clamping assembly is used to clamp the side of the wire core sample, and then the screw drive structure 402... When the sliding bracket 401 moves laterally from the transverse sliding slot 5, the side clamping assembly removes the wire core sample from the housing 3. The hollow cylinder seat 4 inside the housing 3 also rotates in the opposite direction to unwind the wire core sample, so that the wire core sample unfolds on the top of the mounting slot 601. The screw drive structure 402 is a commonly used screw drive structure in the prior art. The sliding bracket 401 is driven by the screw drive structure 402 through the ball nut assembly, which drives the sliding bracket 401 to move on the transverse sliding slot 5.

[0055] The side clamping assembly includes a clamping sleeve 501, which is located on top of the sliding bracket 401. A sloping groove 502 is provided at the bottom of the clamping sleeve 501. A compression support 503 is driven within the clamping sleeve 501. A mounting nut is provided on the clamping sleeve 501, and a push screw is threaded onto the mounting nut. The compression support 503 is configured to compress the end of the wire core sample into the sloping groove 502 as the push screw moves, clamping the end of the wire core sample. When it is necessary to clamp the side of the wire core sample located within the fastening sleeve 203, the side of the wire core sample is extended into the clamping sleeve 501, and the push screw is rotated, causing it to rotate and extend into the clamping sleeve 501. The compression support 503 compresses the side of the wire core sample into the sloping groove 502, pressing the wire core sample between the compression support 503 and the bottom wall of the sloping groove 502.

[0056] The transverse sliding tray 5 is equipped with a wire core support structure; please refer to [link / reference]. Figure 8 and Figure 9The wire core sample is supported on the side opposite to the inspection scraper 2. The wire core support structure includes a mounting slot 601 and a flipping bracket 605. The mounting slot 601 is fixedly connected to the transverse slot 5 and is located directly below the inspection tool. Multiple rotating shaft supports 602 are provided inside the mounting slot 601. Multiple mounting rotating shafts 603 are provided on the rotating shaft supports 602, and an elastic element 604 is provided between the mounting rotating shafts 603 and the rotating shaft supports 602. The elastic element 604 used in this invention can be a spring or coil spring, etc., capable of adapting to the rotation of the shaft and driving the shaft to twist. Each mounting rotating shaft 603... Each of the three components is equipped with a flipping bracket 605, and an abutment wheel 606 is rotatably connected to the flipping bracket 605. The abutment wheel 606 abuts against the wire core sample. After the sliding bracket 401 moves to the corresponding position away from the housing 3, the flipping bracket 605 located in the area between the sliding bracket 401 and the housing 3 is rotated along the center point of the mounting shaft 603 by the elastic torque of the elastic element 604. This causes the flipping bracket 605 and the mounting shaft 603 to rotate upwards together, and the abutment wheel 606 abuts against the bottom of the wire core sample, supporting the bottom of the wire core sample and preventing the wire core sample from shifting downwards during the abrasion resistance test.

[0057] During use, after the elastic element 604 presses the flip bracket 605 into the mounting slot 601, the elastic element 604 tightens and accumulates elastic force. After the elastic element 604 releases the restriction on the flip bracket 605, it drives the flip bracket 605 to flip upward.

[0058] The sliding bracket 401 is provided with a sloped fixed support 701, which is used to press the flip bracket 605 back into the mounting slot 601. When the sliding bracket 401 moves towards the housing 3, the sloped fixed support 701 contacts the flip bracket 605 during the movement, pressing the flip bracket 605 into the mounting slot 601.

[0059] The mounting slot 601 has a unwinding shaft seat 702 on the side away from the housing 3. Multiple winding drums 703 are rotatably mounted on the unwinding shaft seat 702. A drive motor is located on one side of the unwinding shaft seat 702 to rotate the multiple winding drums 703. A fastening strap 704 is wound onto each winding drum 703. The fastening strap 704 is connected to a slope-shaped fixed support 701. The fastening strap 704 moves on the top side of the multiple tilting brackets 605, confining the tilting brackets 605 within the mounting slot 601. When the seat 701 moves with the sliding bracket 401, the drive motor is started to drive multiple winding drums 703 to rotate in the unwinding shaft seat 702, unwinding the fastening belt 704 so that the fastening belt 704 can move with the slope fixed support 701. The fastening belt 704 can squeeze the top of the flipping support 605 located in the area between the sliding bracket 401 and the unwinding shaft seat 702, restricting the flipping support 605 in the mounting slot 601, and also facilitating the lateral movement of the slope fixed support 701 on the top of the mounting slot 601.

[0060] When the wear resistance testing device for low-voltage cable production needs to perform wear resistance testing on the outer insulation layer of the core sample, it first connects a section of the core sample to the fastening cylinder seat 203 located in the semi-circular jacket, drives the hollow cylinder seat 4 to rotate, and winds up the traction rope 104 and the core sample. During the rotation of the hollow cylinder seat 4, it drives the transmission screw 102 to rotate, causing the lead wire cylinder seat 103 to move laterally on the cable tray frame 101, and evenly arranging the core sample on the hollow cylinder seat 4.

[0061] The heated hot water in the hot water tank 301 is transported to the annular water injection cylinder 307 by the delivery pump device 302. The hot water is then injected into the water delivery area 304 through multiple water injection pipes. As the hot water flows in the water delivery area 304, the cooled hot water enters the return water area 305 on the inner arc surface of the partition cylinder layer 303. Finally, the hot water flows back to the hot water tank 301 through the return water pipe 306 to continue heating and circulating the hot water.

[0062] After softening the wire core sample, the fastening sleeve 203, the stretching sleeve 204 and the rotating sleeve are driven to rotate together along the top axis of the rotating bracket 201, so that the fastening sleeve 203, the stretching sleeve 204 and the rotating sleeve face the mounting slot 601, and then the wire core sample can be extended on the upper side of the mounting slot 601.

[0063] Then, the side of the wire core sample is inserted into the clamping cylinder 501, and the push screw is rotated to extend into the clamping cylinder 501. The compression support 503 squeezes the side of the wire core sample into the sloping groove 502, and the wire core sample is squeezed between the compression support 503 and the bottom wall of the sloping groove 502. This causes the sliding bracket 401 to move laterally, unfolding the wire core sample. During the movement of the sliding bracket 401, the unrestricted flipping bracket 605 flips upward to support the bottom of the wire core sample.

[0064] After the wire core sample is fully extended, the detection scraper 2 is lowered by the drive cylinder device 7. The detection scraper 2 is controlled to move back and forth a specified number of times. Then, the wear resistance of the wire core sample is judged by referring to the damage condition of the insulation layer surface.

[0065] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A wear-resistant testing device for low-voltage cable production, comprising a wear-resistant testing machine body (1), wherein a testing scraper (2) is reciprocatingly and laterally moved on the wear-resistant testing machine body (1), characterized in that, Also includes: The housing (3) is set on the wear resistance testing machine body (1). A hollow cylinder seat (4) is rotatably arranged inside the housing (3). A winding traction structure is provided between the hollow cylinder seat (4) and the housing (3) to wind the wire core sample onto the hollow cylinder seat (4) through the winding traction structure. Hot water circulation structure, the hot water circulation structure is provided between the interior of the housing (3) and the hollow cylinder seat (4) to soften the wire core sample wound on the hollow cylinder seat (4); The transverse shifting slot (5) is provided on the wear resistance testing machine body (1). A side clamping component is slidably provided on the transverse shifting slot (5) to clamp the side of the wire core sample, so that the wire core sample extends at the bottom of the testing scraper (2). The wire core support structure is provided on the transverse groove frame (5) to support the wire core sample on the side opposite to the detection scraper (2).

2. The wear resistance testing device for low-voltage cable production according to claim 1, characterized in that, The winding traction structure includes: A cable tray frame (101) is provided inside the housing (3). A transmission screw (102) is rotatably connected to the cable tray frame (101). A lead wire holder (103) is slidably provided on the cable tray frame (101). The lead wire holder (103) is in transmission cooperation with the transmission screw (102). The traction rope (104) is wound on the hollow cylinder seat (4). One side of the traction rope (104) is connected to the core sample, which drives the core sample to be wound onto the hollow cylinder seat (4). A connecting drive assembly is provided between the hollow cylindrical base (4) and the transmission screw (102) to keep the transmission screw (102) rotating in the same direction as the hollow cylindrical base (4).

3. The wear resistance testing device for low-voltage cable production according to claim 2, characterized in that, A connecting sleeve (111) is provided on one side of the traction rope (104), and a tensioning clamp (112) is provided inside the connecting sleeve (111). One side of the wire core sample is connected to the tensioning clamp (112).

4. The wear resistance testing device for low-voltage cable production according to claim 3, characterized in that, The connection driver component includes: The transmission wheel (121) is provided on the same side of the hollow cylindrical seat (4) and the transmission screw (102), and a transmission belt (122) is provided between the two transmission wheels (121). Mounting bracket (123) is provided inside the housing (3). The top of the mounting bracket (123) is provided with a support wheel (124), which is in drive cooperation with the transmission belt (122).

5. The wear resistance testing device for low-voltage cable production according to claim 3, characterized in that, The housing (3) is equipped with a cylindrical steering structure for adjusting the winding or unwinding direction of the wire core sample. The cylindrical steering structure includes: Rotating bracket (201), the rotating bracket (201) is disposed in the housing (3), and a steering cylinder seat (202) is rotatably disposed on the top of the rotating bracket (201), and the traction rope (104) or the core sample passes through the steering cylinder seat (202). A fastening sleeve seat (203) is provided on one side of the steering sleeve seat (202). A tension sleeve (204) is connected between the fastening sleeve seat (203) and the steering sleeve seat (202). A right-angled through groove is provided on the housing (3). Semi-circular sleeves are provided on both sides of the right-angled through groove. The fastening sleeve seat (203) is engaged with the semi-circular sleeves.

6. The wear resistance testing device for low-voltage cable production according to claim 5, characterized in that, The hot water circulation structure includes: A hot water tank (301) is disposed inside the housing (3) and the hot water tank (301) has a heating device; A delivery pump device (302) is provided on one side of the hot water tank (301), and the input end of the delivery pump device (302) is connected to the hot water tank (301); A partition cylinder layer (303) is fixedly connected inside the hollow cylinder base (4). A water conveying area (304) is formed between the outer arc surface of the partition cylinder layer (303) and the inner wall of the hollow cylinder base (4). A water return area (305) is formed on the inner arc surface of the partition cylinder layer (303). A water return pipe (306) is connected between the water return area (305) and the hot water tank (301). An annular water injection cylinder (307) is rotatably disposed on one side of the hollow cylinder seat (4). The annular water injection cylinder (307) is connected to the output end of the conveying pump device (302). Multiple water injection pipes are connected to the annular water injection cylinder (307), and the water injection pipes extend into the water conveying area (304).

7. The wear resistance testing device for low-voltage cable production according to claim 1, characterized in that, A sliding bracket (401) is slidably connected to the transverse sliding slot (5), and a screw drive structure (402) is provided on the transverse sliding slot (5) to drive the sliding bracket (401) to move laterally. The side clamping assembly is located on the top of the sliding bracket (401).

8. The wear resistance testing device for low-voltage cable production according to claim 7, characterized in that, The side clamping assembly includes: A clamping sleeve (501) is disposed on the top of the sliding bracket (401). A sloping groove (502) is provided at the bottom of the clamping sleeve (501). A compression support (503) is provided inside the clamping sleeve (501). The compression support (503) compresses the end of the wire core sample into the sloping groove (502) to clamp the end of the wire core sample.

9. The wear resistance testing device for low-voltage cable production according to claim 8, characterized in that, The core support structure includes: Mounting slot (601) is fixedly connected to the transverse slot (5) and is located directly below the inspection tool. Multiple rotating shaft supports (602) are provided inside the mounting slot (601). Multiple mounting shafts (603) are provided on the rotating shaft supports (602). An elastic element (604) is provided between the mounting shafts (603) and the rotating shaft supports (602). A flip bracket (605) is provided on each of the mounting shafts (603). An abutment wheel (606) is rotatably connected to the flip bracket (605), and the abutment wheel (606) abuts against the wire core sample.

10. The wear resistance testing device for low-voltage cable production according to claim 9, characterized in that, The sliding bracket (401) is provided with a sloped fixed support (701) for pressing the flip bracket (605) back into the mounting slot (601); The mounting slot (601) has an unwinding shaft seat (702) on the side away from the housing (3). Multiple winding drums (703) are rotatably mounted on the unwinding shaft seat (702). Fastening straps (704) are wound on the winding drums (703). The fastening straps (704) are connected to the slope fixed support (701). The fastening straps (704) move on the top side of the multiple flipping brackets (605) to restrict the flipping brackets (605) within the mounting slot (601).

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