Cable torsion resistance testing device

Abstract

The utility model belongs to the technical field of cable torsion resistance testing, and particularly relates to a cable torsion resistance testing device which comprises a shell and further comprises a motor, the motor is fixedly installed on the shell, a power cavity is formed in the shell, an output shaft of the motor penetrates through the shell and extends into the power cavity, a first bevel gear is fixedly installed on the output shaft of the motor, and a second bevel gear is fixedly installed on the output shaft of the motor. A second bevel gear is mounted at the bottom of the first bevel gear in a meshed mode, a rotating column is fixedly mounted at the bottom end of the second bevel gear, the lower end of the rotating column penetrates through the power cavity and is fixedly provided with a first disc, and a second disc is fixedly mounted in the shell and located below the first disc. The multiple first fixing blocks are fixedly installed at the top of the shell, second fixing blocks are rotationally installed on one sides of the multiple first fixing blocks, and a sliding groove is formed in the second disc; the two ends of the cable are stably fixed, loosening or displacement in the test is avoided, operation is simple, and tools are not needed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to cable torsional performance test technical field especially relates to a cable torsional performance test device. BACKGROUND

[0002] The cable torsional performance test is because installation, often bears torsional stress in use. The test can simulate actual working condition, verifies the structure stability of cable conductor, insulating layer and sheath, avoids the mechanical damage such as strand breakage, cracking caused by torsion, prevents the security hidden danger such as electrical performance decline or short circuit, guarantees the reliability of cable in long-term service, prolongs the service life, and meets relevant standard requirements.

[0003] The existing cable torsional performance test device has some shortcomings when in use, for example: bolt manual locking relies on the experience and hand feeling of operating personnel, lacks unified standard, and torque deviation is prone to occur, which can lead to unstable clamping force, cause local stress concentration at the contact part of cable and clamp, and uneven dispersion of pressure, and the concentrated stress can scratch the insulating layer, produce indentation, damage the structural integrity, and affect the insulating performance. In view of this, a cable torsional performance test device is provided. UTILITY MODEL CONTENTS

[0004] The utility model discloses a cable torsional performance test device, which can solve the problems in the background.

[0005] Therefore, the utility model provides a cable torsional performance test device, which comprises a shell and further comprises:

[0006] A motor is fixedly installed on the shell, a power cavity is formed in the shell, the output shaft of the motor penetrates through the shell and extends into the power cavity, a first bevel gear is fixedly installed on the output shaft of the motor, a second bevel gear is meshedly installed at the bottom of the first bevel gear, a rotating column is fixedly installed at the bottom end of the second bevel gear, a first disc is fixedly installed at the lower end of the rotating column and penetrates through the power cavity, and a second disc is fixedly installed below the first disc in the shell.

[0007] A plurality of first fixing blocks are fixedly installed on the top of the shell, a second fixing block is rotatably installed on one side of each of the first fixing blocks, a sliding groove is formed in the second disc, a plurality of first rotating blocks are slidably installed in the sliding groove, and a second rotating block is fixedly installed on the top of the second disc and located on one side of the plurality of first rotating blocks.

[0008] A plurality of fixing assemblies are respectively located on the plurality of second fixing blocks and used for fixing the positions of the plurality of second fixing blocks.

[0009] A driving assembly is arranged on the shell and used to drive the first rotating blocks to slide.

[0010] In the technical solution, the fixed assembly is arranged, the second fixed block is rotated to open the clamping space, the one end of the cable is placed between the first fixed block and the second fixed block, the second fixed block is rotated and reset, the fixed assembly is arranged to fix the position of the second fixed block, the cable is placed between the first rotating block and the second rotating block, the driving assembly is arranged to drive the first rotating block to move towards the second rotating block, the first rotating block and the second rotating block can fix the other end of the cable, the two ends of the cable are stably fixed, the loosening or displacement in the test is avoided, and the operation is simple and no tool is needed.

[0011] The motor is started, the output shaft of the motor drives the first bevel gear to rotate, the first bevel gear drives the second bevel gear to rotate, the second bevel gear drives the rotating column to rotate, the rotating column synchronously drives the first disc to rotate, the first disc drives the one end of the cable clamped thereon to rotate, the other end of the cable is fixed on the second disc, and then a continuous torque is applied to the cable, the deformation or fracture state of the cable can be observed in real time through the transparent plate on the sealing door, so that the anti-torsion performance detection is completed under the simulated actual working condition.

[0012] In the above technical solution, further, the fixed assembly comprises:

[0013] Two fixed columns are fixedly installed on the second fixed block, and the same limiting strip is slidably installed on the two fixed columns, one end of the limiting strip penetrates through the second fixed block and extends into the first fixed block, the one end of the limiting strip is inserted into the first fixed block in a plug-in manner, a tension spring is sleeved on each of the two fixed columns, and two ends of the tension spring are fixedly connected with the second fixed block and the limiting strip respectively.

[0014] In the technical solution, the limiting strip is pulled to slide along the fixed column, the tension spring is elongated, the limiting strip is separated from the first fixed block, the second fixed block is rotated to open the clamping space, the one end of the cable is placed between the first fixed block and the second fixed block, the second fixed block is rotated and reset, then the limiting strip is released, the tension spring is reset to drive the limiting strip to be inserted into the first fixed block, and the position of the second fixed block is fixed.

[0015] In the above technical solution, further, the driving assembly comprises:

[0016] A cylinder is fixedly installed in the shell, the telescopic end of the cylinder penetrates through the second disc and extends into the sliding groove, the telescopic end of the cylinder is fixedly installed with a sliding plate, a plurality of connecting rods are rotatably installed on the sliding plate, the plurality of connecting rods are rotatably connected with the plurality of first rotating blocks respectively, and the sliding plate is slidably connected with the sliding groove.

[0017] In the technical solution, the cable is placed between the first rotating block and the second rotating block, and then the cylinder is started, the telescopic end of the cylinder pushes the sliding plate to slide in the sliding groove, the sliding plate drives the plurality of connecting rods to rotate, the connecting rods push the corresponding first rotating blocks to move towards the second rotating block, the ends of the cable are stably fixed, and loosening or displacement in the test is avoided.

[0018] In the technical solution, the plurality of first fixed blocks, the plurality of second fixed blocks, the plurality of first rotating blocks and the plurality of second rotating blocks are all fixedly installed with anti-skid rubber pads.

[0019] In the technical solution, the ends of the cable can be stably fixed, and loosening or displacement in the test is avoided.

[0020] In the technical solution, the telescopic end of the cylinder is slidably connected with the second disc and the sliding groove, the output shaft of the motor is rotatably connected with the shell and the power cavity, and the first bevel gear, the second bevel gear and the rotating column are all rotatably connected with the power cavity.

[0021] In the technical solution, the telescopic end of the cylinder can slide in the second disc and the sliding groove, the output shaft of the motor can rotate in the shell and the power cavity, and the first bevel gear, the second bevel gear and the rotating column can all rotate in the power cavity.

[0022] In the technical solution, the front side of the shell is rotatably installed with a sealing door, and the sealing door is fixedly installed with a transparent plate.

[0023] In the technical solution, the deformation or fracture state of the cable can be observed in real time through the transparent plate on the sealing door.

[0024] In the technical solution, the plurality of first fixed blocks are annularly and equidistantly distributed on the first disc, and the plurality of first rotating blocks are annularly and equidistantly distributed on the second disc.

[0025] In the technical solution, the cable can be stably subjected to the torsion test.

[0026] The beneficial effects of the utility model are as follows:

[0027] The cable torsion resistance test device is one of the processing methods for the wire, through the fixed assembly, the clamping space can be opened by rotating the second fixed block, then one end of the cable is placed between the first fixed block and the second fixed block, and then the second fixed block is rotated and reset, the position of the second fixed block is fixed through the fixed assembly, then the cable is placed between the first rotating block and the second rotating block, the driving assembly with the same specification can drive the first rotating block to move towards the second rotating block, the first rotating block and the second rotating block can fix the other end of the cable, the stable fixation of the two ends of the cable is realized, the loosening or displacement during the test is avoided, and the operation is simple and no tools are needed. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 is the overall structure schematic diagram of the utility model;

[0029] Figure 2 is the shell section structure schematic diagram of the utility model;

[0030] Figure 3 is the Figure 2 structure schematic diagram of the enlarged structure of A in the middle;

[0031] Figure 4 is the local explosion structure schematic diagram of the utility model;

[0032] Figure 5 is the second fixed block area structure schematic diagram of the utility model;

[0033] Figure 6 is the second fixed block section structure schematic diagram of the utility model;

[0034] Figure 7 is the second disc section structure schematic diagram one of the utility model;

[0035] Figure 8 is the second disc section structure schematic diagram two of the utility model.

[0036] The marks in the drawing are:

[0037] 1, shell; 2, sealing door; 3, motor; 4, power cavity; 5, first bevel gear; 6, second bevel gear; 7, rotating column; 8, first disc; 9, first fixed block; 10, second fixed block; 11, second disc; 12, sliding groove; 13, first rotating block; 14, second rotating block; 15, fixed column; 16, limiting strip; 17, tension spring; 18, air cylinder; 19, sliding plate; 20, connecting rod; 21, antiskid rubber pad. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings Figure 1 - Figure 8Further details of the present application are described below.

[0039] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not intended to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0040] Embodiment 1: The present embodiment provides a cable torsion resistance test device, comprising a shell 1, further comprising:

[0041] A motor 3 is fixedly installed on the shell 1, a power cavity 4 is formed in the shell 1, the output shaft of the motor 3 penetrates through the shell 1 and extends into the power cavity 4, a first bevel gear 5 is fixedly installed on the output shaft of the motor 3, a second bevel gear 6 is meshingly installed at the bottom of the first bevel gear 5, a rotating column 7 is fixedly installed at the bottom end of the second bevel gear 6, the lower end of the rotating column 7 penetrates through the power cavity 4 and is fixedly installed with a first disc 8, a second disc 11 is fixedly installed in the shell 1 below the first disc 8;

[0042] A plurality of first fixed blocks 9 are fixedly installed on the top of the shell 1, a second fixed block 10 is rotatably installed on one side of each of the plurality of first fixed blocks 9, a sliding groove 12 is formed in the second disc 11, and a plurality of first rotating blocks 13 are slidably installed in the sliding groove 12; a second rotating block 14 is fixedly installed on the top of the second disc 11 on one side of the plurality of first rotating blocks 13;

[0043] A plurality of fixing assemblies are respectively located on the plurality of second fixed blocks 10 and are used to fix the positions of the plurality of second fixed blocks 10;

[0044] A driving assembly is located on the shell 1 and is used to drive the plurality of first rotating blocks 13 to slide.

[0045] The fixing assembly is provided, and the second fixed block 10 can be rotated to open the clamping space. Then, one end of the cable is placed between the first fixed block 9 and the second fixed block 10, and the second fixed block 10 is rotated and reset. The fixing assembly is provided to fix the position of the second fixed block 10. Then, the cable is placed between the first rotating block 13 and the second rotating block 14. The driving assembly of the same specification can drive the first rotating block 13 to move towards the second rotating block 14. The first rotating block 13 and the second rotating block 14 can fix the other end of the cable, thereby stably fixing the two ends of the cable, avoiding loosening or displacement during the test, and the operation is simple and no tools are required.

[0046] The motor 3 is started, the output shaft of the motor 3 drives the first bevel gear 5 to rotate, the second bevel gear 6 meshing with the first bevel gear 5 rotates, the second bevel gear 6 drives the rotating column 7 to rotate, the rotating column 7 synchronously drives the first disc 8 to rotate, the first disc 8 drives the one end of the cable clamped thereon to rotate, the other end of the cable is fixed on the second disc 11, and then a continuous torque is applied to the cable. The deformation or fracture state of the cable can be observed in real time through the transparent plate on the sealing door 2, so that the anti-torsion performance detection is completed under the simulated actual working condition.

[0047] In the embodiment, the fixing assembly comprises:

[0048] Two fixed columns 15 are fixedly installed on the second fixed block 10, and the same limiting strip 16 is slidingly installed on the two fixed columns 15. One end of the limiting strip 16 penetrates through the second fixed block 10 and extends into the first fixed block 9, and the one end of the limiting strip 16 is insertedly matched with the first fixed block 9. A tension spring 17 is sleeved on each of the two fixed columns 15, and the two ends of the tension spring 17 are fixedly connected with the second fixed block 10 and the limiting strip 16 respectively. The limiting strip 16 is slidingly connected with the second fixed block 10.

[0049] The limiting strip 16 is pulled to slide along the fixed column 15, the tension spring 17 is elongated, the limiting strip 16 is separated from the first fixed block 9, the second fixed block 10 is then rotated to open the clamping space, the one end of the cable is placed between the first fixed block 9 and the second fixed block 10, the second fixed block 10 is rotated and reset, the limiting strip 16 is then released, the tension spring 17 is reset to drive the limiting strip 16 to be inserted into the first fixed block 9, and the position of the second fixed block 10 is fixed.

[0050] In the embodiment, the driving assembly comprises:

[0051] The cylinder 18 is fixedly installed in the shell 1, the telescopic end of the cylinder 18 penetrates through the second disc 11 and extends into the sliding groove 12, the telescopic end of the cylinder 18 is fixedly installed with the sliding plate 19, the sliding plate 19 is rotatably installed with a plurality of connecting rods 20, the plurality of connecting rods 20 are rotatably connected with the plurality of first rotating blocks 13 respectively, and the sliding plate 19 is slidingly connected with the sliding groove 12.

[0052] The cable is placed between the first rotating block 13 and the second rotating block 14, and then the cylinder 18 is started, the telescopic end of the cylinder 18 pushes the sliding plate 19 to slide in the sliding groove 12, the sliding plate 19 drives the plurality of connecting rods 20 to rotate, the connecting rods 20 push the corresponding first rotating blocks 13 to move towards the second rotating blocks 14, the two ends of the cable are stably fixed, and loosening or displacement in the test is avoided. The operation is simple and no tool is needed.

[0053] Embodiment 2: The embodiment provides a cable torsion resistance performance test device, in addition to comprising the technical scheme of the above embodiment, further having the following technical features.

[0054] In the embodiment, the anti-skid rubber pads 21 are fixedly installed on the first fixing blocks 9, the second fixing blocks 10, the first rotating blocks 13 and the second rotating blocks 14.

[0055] The two ends of the cable can be stably fixed, and loosening or displacement in the test is avoided.

[0056] Embodiment 3: The embodiment provides a cable torsion resistance performance test device, in addition to comprising the technical scheme of the above embodiment, further having the following technical features.

[0057] In the embodiment, the telescopic end of the air cylinder 18 is in sliding connection with the second disc 11 and the sliding groove 12, the output shaft of the motor 3 is in rotating connection with the shell 1 and the power cavity 4, and the first bevel gear 5, the second bevel gear 6 and the rotating column 7 are all in rotating connection with the power cavity 4.

[0058] The telescopic end of the air cylinder 18 can slide in the second disc 11 and the sliding groove 12, the output shaft of the motor 3 can rotate in the shell 1 and the power cavity 4, and the first bevel gear 5, the second bevel gear 6 and the rotating column 7 can all rotate in the power cavity 4.

[0059] Embodiment 4: The embodiment provides a cable torsion resistance performance test device, in addition to comprising the technical scheme of the above embodiment, further having the following technical features.

[0060] In the embodiment, the sealing door 2 is rotatably installed on the front side of the shell 1, and the transparent plate is fixedly installed on the sealing door 2.

[0061] The deformation or fracture state of the cable can be observed in real time through the transparent plate on the sealing door 2.

[0062] Embodiment 5: The embodiment provides a cable torsion resistance performance test device, in addition to comprising the technical scheme of the above embodiment, further having the following technical features.

[0063] In the embodiment, the first fixing blocks 9 are annularly and equidistantly distributed on the first disc 8, and the first rotating blocks 13 are annularly and equidistantly distributed on the second disc 11.

[0064] The cable can be stably subjected to the torsion resistance test.

[0065] Working principle: Pulling the limiting strip 16 along the fixed post 15 will extend the tension spring 17, causing the limiting strip 16 to disengage from the first fixed block 9. This allows the second fixed block 10 to be rotated to open the clamping space. Then, one end of the cable is placed between the first fixed block 9 and the second fixed block 10. The second fixed block 10 is then rotated and reset. The limiting strip 16 is then released, and the tension spring 17 resets, causing the limiting strip 16 to insert into the first fixed block 9, fixing the position of the second fixed block 10. The anti-slip rubber pads 21 on the first and second fixed blocks 9 can increase the slip resistance. Apply friction to the cable, place the cable between the first rotating block 13 and the second rotating block 14, then start the cylinder 18, its telescopic end pushes the sliding plate 19 to slide in the sliding groove 12, the sliding plate 19 drives several connecting rods 20 to rotate, the connecting rods 20 push the corresponding first rotating block 13 to the second rotating block 14, the anti-slip rubber pads 21 on the first rotating block 13 and the second rotating block 14 are in close contact with the other end of the cable, to achieve a stable fixation of both ends of the cable, to avoid loosening or displacement during the test, and the operation is simple and does not require the use of tools;

[0066] When the motor 3 is started, the output shaft of the motor 3 drives the first bevel gear 5 to rotate. The first bevel gear 5 and its meshing second bevel gear 6 rotate. The second bevel gear 6 drives the rotating column 7 to rotate. The rotating column 7 synchronously drives the first disc 8 to rotate. The first disc 8 drives one end of the cable clamped on it to rotate. The other end of the cable is fixed on the second disc 11, thereby applying a continuous torque to the cable. The deformation or breakage state of the cable can be observed in real time through the transparent plate on the sealing door 2, thus simulating the actual working conditions to complete the torsional performance test.

[0067] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A device for testing the torsional resistance of an electrical cable, comprising a housing (1), characterised in that, Also includes: The motor (3) is fixedly installed on the shell (1), the power cavity (4) is opened in the shell (1), the output shaft of the motor (3) penetrates the shell (1) and extends to the power cavity (4), the output shaft of the motor (3) is fixedly installed with the first bevel gear (5), the bottom of the first bevel gear (5) is engaged with the second bevel gear (6), the bottom end of the second bevel gear (6) is fixedly installed with the rotating column (7), the lower end of the rotating column (7) penetrates the power cavity (4) and is fixedly installed with the first disc (8), the second disc (11) is fixedly installed in the shell (1) and below the first disc (8); A plurality of first fixed blocks (9) are fixedly installed on the top of the shell (1), a plurality of first fixed blocks (9) are rotatably installed on one side of a plurality of second fixed blocks (10), a sliding groove (12) is formed in the second disc (11), a plurality of first rotating blocks (13) are slidably installed in the sliding groove (12), and a second rotating block (14) is fixedly installed on the top of the second disc (11) and on one side of a plurality of first rotating blocks (13). A plurality of fixing assemblies are respectively located on a plurality of second fixed blocks (10) and are used for fixing the position of a plurality of second fixed blocks (10); The driving assembly is located on the shell (1) and is used for driving a plurality of first rotating blocks (13) to slide.

2. The device for testing the torsion resistance of a cable according to claim 1, wherein The fixing assembly comprises: Two fixed columns (15) are fixedly installed on the second fixed block (10), the same limiting strip (16) is slidably installed on the two fixed columns (15), one end of the limiting strip (16) penetrates the second fixed block (10) and extends into the first fixed block (9), one end of the limiting strip (16) is inserted and matched with the first fixed block (9), a tension spring (17) is sleeved on the two fixed columns (15), the two ends of the tension spring (17) are fixedly connected with the second fixed block (10) and the limiting strip (16) respectively, and the limiting strip (16) is slidably connected with the second fixed block (10).

3. The device for testing the torsion resistance of a cable according to claim 2, characterized in that The driving assembly comprises: The cylinder (18) is fixedly installed in the shell (1), the telescopic end of the cylinder (18) penetrates the second disc (11) and extends into the sliding groove (12), the telescopic end of the cylinder (18) is fixedly installed with the sliding plate (19), a plurality of connecting rods (20) are rotatably installed on the sliding plate (19), a plurality of connecting rods (20) are rotatably connected with a plurality of first rotating blocks (13) respectively, and the sliding plate (19) is slidably connected with the sliding groove (12).

4. The cable torsion resistance test apparatus according to claim 1, wherein A plurality of first fixed blocks (9), a plurality of second fixed blocks (10), a plurality of first rotating blocks (13) and a plurality of second rotating blocks (14) are fixedly installed with antiskid rubber pads (21).

5. The device for testing the torsion resistance of a cable according to claim 3, wherein The telescopic end of the air cylinder (18) is in sliding connection with the second disc (11) and the sliding groove (12), the output shaft of the motor (3) is in rotary connection with the shell (1) and the power cavity (4), the first bevel gear (5), the second bevel gear (6) and the rotary column (7) are all in rotary connection with the power cavity (4).

6. The cable torsion resistance test apparatus according to claim 1, wherein The front side of the shell (1) is rotatably provided with a sealing door (2), and the sealing door (2) is fixedly provided with a transparent plate.

7. The device for testing the torsion resistance of a cable according to claim 1, wherein The first fixed blocks (9) are annularly and equidistantly distributed on the first disc (8), and the first rotary blocks (13) are annularly and equidistantly distributed on the second disc (11).

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