Cable stretching detection device
By introducing a hydraulic system and guiding structure into the cable tensile testing device, the problem that existing devices can only detect longitudinal forces has been solved, enabling effective detection of transverse forces on cables and improving the comprehensiveness and accuracy of the testing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG HUADONG NEW CABLE CO LTD
- Filing Date
- 2025-04-15
- Publication Date
- 2026-04-17
AI Technical Summary
Existing cable tensile testing devices can only perform longitudinal tensile testing and cannot effectively detect the lateral forces that cables experience during use, resulting in an inability to fully assess the mechanical properties of cables.
A cable tensile testing device was designed. By fixing a hydraulic cylinder and hydraulic rod to a fixed block, and combining a pressure plate and a guide block, a lateral force can be applied to the cable during the tensile process. The device can then perform lateral tensile testing. It is equipped with a spring telescopic rod and a guide groove to accommodate cables of different diameters, ensuring comprehensive testing.
This technology enables simultaneous detection of longitudinal and transverse forces on cables, improving the comprehensiveness and accuracy of cable tensile testing and reducing the risk of cable damage during the testing process.
Smart Images
Figure CN224137066U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of cable production technology, specifically a cable tensile testing device. Background Technology
[0002] Cable tensile testing is an important step in the cable production process. Through tensile testing, key mechanical property parameters of cable materials, such as elastic modulus, yield strength, and tensile strength, can be obtained, thereby verifying whether the material meets the design requirements.
[0003] Cables are used in power transmission, communications and other fields, and need to withstand large tensile forces. Tensile testing can ensure that cables operate within safe limits and avoid failures or accidents caused by tensile overload.
[0004] Existing cable tensile testing devices typically clamp both ends of the cable using a fixing clamp, then apply tension to both ends of the cable using a traction device, and finally detect the tensile value using a sensor. However, through long-term use and observation, it has been found that during cable use, the cable is subjected to not only longitudinal tension but also lateral force. Existing testing methods can only perform longitudinal tensile testing on the cable and cannot perform lateral tensile force testing. Therefore, a cable tensile testing device is proposed to address the above problems. Utility Model Content
[0005] To overcome the shortcomings of existing technologies and address the problems of existing equipment, this utility model proposes a cable tensile testing device.
[0006] The technical solution adopted by this utility model to solve its technical problem is a cable tensile testing device, including a base, a first fixed seat fixedly connected to the base, a motor fixedly connected to the first fixed seat, a first screw fixedly connected to the output end of the motor, a second fixed seat fixedly connected to the base, the first screw and the second fixed seat being rotatably connected, a slider threadedly connected to the first screw, a sliding groove provided on the base, the slider and the sliding groove being correspondingly arranged, a fixing clamp fixedly connected to the slider and the first fixed seat respectively, a cable body being arranged between the pair of fixing clamps, a fixing plate fixedly connected to the base, a first testing device fixedly connected to the fixing plate, a second testing device fixedly connected to the first fixed seat, a fixing column fixedly connected to the base, and a second testing device provided on the fixing column. The screw, the second screw, and the fixing post are connected through each other. The second screw and the base are rotatably connected. A fixing block is threaded onto the second screw. A hydraulic cylinder is fixed to the fixing block. A hydraulic rod is fixed to the output end of the hydraulic cylinder. A pressure plate is fixed to the end of the hydraulic rod. A pair of guide blocks are provided on the pressure plate. By fixing the hydraulic cylinder to the fixing block, fixing the hydraulic rod to the hydraulic cylinder, fixing the pressure plate to the hydraulic rod, and providing a pair of guide blocks on the pressure plate, a lateral force can be applied to the cable body during the cable stretching process. This force can be detected by the first detection device fixed to the fixing plate. This allows for lateral tensile testing of the cable during the cable stretching test, reducing the difficulty of simultaneously performing tensile and lateral tests on the cable during use.
[0007] Preferably, the pressure plate has an inner groove, and a pair of spring telescopic rods are fixedly connected in the inner groove. A connecting block is fixedly connected to the end of each spring telescopic rod. The connecting block and the guide block are fixedly connected. By fixing a pair of spring telescopic rods in the inner groove and connecting blocks to the ends of the spring telescopic rods, when the cable body is thicker or thinner, the spring telescopic rods change shape, causing the guide block to move. This allows the guide block to better guide the cable body to the middle of the pressure plate, thereby allowing the pressure plate to better stretch the cable body laterally.
[0008] Preferably, multiple sets of fixing blocks are fixedly connected to the pressure plate, a pair of guide grooves are provided on the pressure plate, and a pair of guide blocks are fixedly connected to the guide block. The guide grooves and guide blocks are arranged correspondingly. By providing guide grooves on the pressure plate and fixing guide blocks to the guide blocks, the guide blocks move along the direction of the guide grooves when the guide blocks move, which can guide the guide blocks when they move and reduce the shaking of the guide blocks during use.
[0009] Preferably, a plurality of ball bearings are rotatably connected to the guide block, and the ball bearings are located between the guide groove and the guide block. By rotatably connecting a plurality of ball bearings to the guide block, the guide block can run more smoothly inside the guide groove during use, reducing the occurrence of movement jamming when the guide block runs inside the guide groove.
[0010] Preferably, the guide block has a slot, and multiple rollers are rotatably connected in the slot. By rotatably connecting multiple rollers in the slot, the rollers can contact and roll with the cable body during use, reducing the difficulty of the cable body moving on the guide block due to excessive friction between the cable body and the guide block when the guide block is in direct contact with the cable body during use.
[0011] Preferably, a pair of fixing strips are fixedly connected to the pressure plate, and a rubber roller is rotatably connected to the fixing strip. By rotatably connecting the rubber roller to the fixing strip, the rubber roller can be made to contact the cable body during use, reducing the possibility of the cable body being damaged due to direct contact with the pressure plate during use, which would affect the test results of the cable body.
[0012] The advantages of this utility model are:
[0013] This utility model provides a cable tensile testing device. By fixing a hydraulic cylinder to a fixed block, fixing a hydraulic rod to the hydraulic cylinder, fixing a pressure plate to the hydraulic rod, and setting a pair of guide blocks on the pressure plate, a lateral force can be applied to the cable body during the cable tensile process and detected by a first testing device fixed on the fixed plate. This device can perform lateral tensile testing on the cable while performing tensile testing, reducing the difficulty of performing tensile and lateral testing on the cable simultaneously during use.
[0014] This utility model provides a cable tensile testing device. A pair of spring telescopic rods are fixedly connected in the inner groove, and a connecting block is fixedly connected to the end of the spring telescopic rod. When the cable body is thicker or thinner, the spring telescopic rod changes and drives the guide block to move. This allows the guide block to better guide the cable body to the middle of the pressure plate, thereby allowing the pressure plate to better stretch the cable body laterally. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1This is a schematic diagram of the main body of this utility model;
[0017] Figure 2 This is a schematic diagram of the guide block in this utility model;
[0018] Figure 3 This is a schematic diagram of the spring telescopic rod in this utility model;
[0019] Figure 4 This is a schematic diagram of the roller structure in this utility model;
[0020] Figure 5 This is a schematic diagram of the structure of the rubber roller in this utility model.
[0021] In the diagram: 1. Base; 11. First fixed seat; 12. Motor; 13. First screw; 14. Second fixed seat; 15. Slider; 16. Slide groove; 17. Fixing clamp; 18. Cable body; 19. Fixing plate; 110. First detection device; 111. Second detection device; 112. Fixing column; 113. Second screw; 114. Fixing block; 115. Hydraulic cylinder; 116. Hydraulic rod; 117. Pressure plate; 118. Guide block; 2. Inner groove; 21. Spring telescopic rod; 22. Connecting block; 3. Guide groove; 31. Guide block; 4. Ball bearing; 5. Slot; 51. Roller; 6. Fixing strip; 61. Rubber roller. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.
[0023] Please see Figures 1-5As shown, the system includes a base 1, on which a first fixed seat 11 is fixedly connected. A motor 12 is fixedly connected to the first fixed seat 11, and a first screw 13 is fixedly connected to the output end of the motor 12. A second fixed seat 14 is fixedly connected to the base 1. The first screw 13 and the second fixed seat 14 are rotatably connected. A slider 15 is threadedly connected to the first screw 13. A sliding groove 16 is formed on the base 1, and the slider 15 and the sliding groove 16 are correspondingly arranged. Fixing clamps 17 are fixedly connected to the slider 15 and the first fixed seat 11, respectively. A cable body 18 is arranged between a pair of fixing clamps 17. A fixing plate 19 is fixedly connected to the base 1, and a first detection device 110 is fixedly connected to the fixing plate 19. A second detection device 111 is fixedly connected to the base 1. A fixing post 112 is fixedly connected to the base 1. A second screw 113 is provided on the fixing post 112. The second screw 113 and the fixing post 112 are through-connected. The second screw 113 and the base 1 are rotatably connected. A fixing block 114 is threadedly connected to the second screw 113. A hydraulic cylinder 115 is fixedly connected to the fixing block 114. A hydraulic rod 116 is fixedly connected to the output end of the hydraulic cylinder 115. A pressure plate 117 is fixedly connected to the end of the hydraulic rod 116. A pair of guide blocks 118 are provided on the pressure plate 117. During operation, a pair of fixing clamps 17 are opened, the cable body 18 is placed between the pair of fixing clamps 17, and then bolts are used to fix the pair of fixing clamps 17. After fixing is completed, motor 12 is turned on. When motor 12 is turned on, it drives the first screw 13 to rotate. When the first screw 13 rotates, the slider 15 moves along the slide groove 16 towards the second fixed seat 14. When the slider 15 moves, it drives the fixed clamp 17 fixed on the slider 15 to move. When the slider 15 moves to the designated position, it stretches the cable body 18 fixed between the pair of fixed clamps 17. When the stretching is completed, the second detection device 111 fixed on the first fixed seat 11 is turned on. The second detection device 111 is an SGZF-200K force gauge. The second detection device 111 detects the cable body 18. When the cable body 18 is stretched, the second screw 113 is manually rotated to adjust the position of the fixed block 114. When the fixed block 114 is adjusted... When the hydraulic cylinder 115 reaches the designated position, it also moves to the designated position and is activated. When the hydraulic cylinder 115 is activated, it drives the hydraulic rod 116 to move. When the hydraulic rod 116 moves, it drives the pressure plate 117 to move towards the cable body 18. When the pressure plate 117 contacts the cable body 18, a pair of guide blocks 118 guide the cable body 18 towards the center of the pressure plate 117. When the pressure plate 117 reaches the designated position, the cable body 18 deforms under lateral force. At this time, the first detection device 110 fixed to the fixing plate 19 is activated. The first detection device 110 is an SGZF-200K force gauge. The first detection device 110 detects the force on the cable body 18. A hydraulic cylinder 115 is fixed to the fixing block 114.A hydraulic rod 116 is fixedly connected to the hydraulic cylinder 115, and a pressure plate 117 is fixedly connected to the hydraulic rod 116. A pair of guide blocks 118 are provided on the pressure plate 117. This allows for the application of a lateral force to the cable body 18 during cable stretching, which is then detected by a first detection device 110 fixed to the fixing plate 19. This enables lateral tensile testing of the cable during stretching, reducing the difficulty of simultaneously performing both stretching and lateral testing on the cable 18 during use.
[0024] Please see Figures 2-5 As shown, the pressure plate 117 has an inner groove 2, and a pair of spring telescopic rods 21 are fixedly connected to the inner groove 2. A connecting block 22 is fixedly connected to the end of each spring telescopic rod 21. The connecting block 22 and the guide block 118 are fixedly connected. When the pressure plate 117 moves towards the cable body 18, it applies a lateral force to the cable body 18. When the cable body 18 is thinner, the pair of spring telescopic rods 21 drive the connecting block 22 to move towards the center of the pressure plate 117. At this time, the pair of guide blocks 118 also move towards the center of the pressure plate 117. When the cable body 18 is thicker, a pair of spring telescopic rods 21 are compressed. At this time, a pair of guide blocks 118 move away from the center of the pressure plate 117. By fixing a pair of spring telescopic rods 21 in the inner groove 2 and fixing a connecting block 22 at the end of the spring telescopic rods 21, when the cable body 18 is thicker or thinner, the spring telescopic rods 21 change and drive the guide blocks 118 to move. This allows the guide blocks 118 to better guide the cable body 18 to the center of the pressure plate 117, thereby allowing the pressure plate 117 to better stretch the cable body 18 laterally.
[0025] Please see Figure 3 As shown, a pair of guide grooves 3 are provided on the pressure plate 117, and a pair of guide blocks 31 are fixedly connected to the guide block 118. The guide grooves 3 and guide blocks 31 are arranged correspondingly. When the cable body 18 is thinner or thicker, the guide block 118 moves. When the guide block 118 moves, the guide block 31 slides inside the guide groove 3. By providing guide grooves 3 on the pressure plate 117 and fixing guide blocks 31 to the guide block 118, the guide block 31 moves along the direction of the guide groove 3 when the guide block 118 moves. This can guide the guide block 118 when it moves, reducing the shaking of the guide block 118 during use.
[0026] Please see Figure 4As shown, a plurality of balls 4 are rotatably connected to the guide block 31. The balls 4 are located between the guide groove 3 and the guide block 31. When the guide block 31 moves in the guide groove 3, the balls 4 roll. By rotatably connecting a plurality of balls 4 to the guide block 31, the guide block 31 can run more smoothly in the guide groove 3 during use, reducing the possibility of the guide block 31 getting stuck in the guide groove 3.
[0027] Please see Figure 4 As shown, the guide block 118 has a slot 5, and multiple rollers 51 are rotatably connected in the slot 5. When the guide block 118 moves to a designated position, the multiple rollers 51 rotatably connected in the slot 5 come into contact with the cable body 18. When the rollers 51 come into contact with the cable body 18, the rollers 51 rotate. By rotatably connecting multiple rollers 51 in the slot 5, the rollers 51 can come into contact with the cable body 18 and roll during use, reducing the difficulty of the cable body 18 moving in the guide block 118 due to the large friction between the cable body 18 and the guide block 118 when the guide block 118 comes into direct contact with the cable body 18 during use.
[0028] Please see Figure 5 As shown, a pair of fixing strips 6 are fixedly connected to the pressure plate 117, and a rubber roller 61 is rotatably connected to the fixing strip 6. When the pressure plate 117 moves to the designated position, the rubber roller 61 rotatably connected to the fixing strip 6 contacts the cable body 18. By rotatably connecting the rubber roller 61 to the fixing strip 6, the rubber roller 61 can contact the cable body 18 during use, reducing the possibility of the cable body 18 being damaged due to direct contact with the pressure plate 117 during use, thus affecting the detection results of the cable body 18.
[0029] Working principle: During operation, a pair of fixing clamps 17 are opened, and the cable body 18 is placed between the pair of fixing clamps 17. Bolts are then used to fix the pair of fixing clamps 17. After fixing, the motor 12 is turned on. When the motor 12 is turned on, it drives the first screw 13 to rotate. When the first screw 13 rotates, the slider 15 moves along the slide groove 16 towards the second fixing seat 14. When the slider 15 moves, it drives the fixing clamps 17 fixed to the slider 15 to move. When the slider 15 moves to the designated position, it stretches the cable body 18 fixed between the pair of fixing clamps 17. When the stretching is complete, the first screw 17 is turned on. The second detection device 111, fixed to the mounting base 11, detects the cable body 18. When the cable body 18 is stretched, the second screw 113 is manually rotated to adjust the position of the fixing block 114. When the fixing block 114 is adjusted to the designated position, the hydraulic cylinder 115 also moves to the designated position. At this time, the hydraulic cylinder 115 is activated. When the hydraulic cylinder 115 is activated, it drives the hydraulic rod 116 to move. When the hydraulic rod 116 moves, it drives the pressure plate 117 to move towards the cable body 18. When the pressure plate 117 contacts the cable body 18, a pair of guide blocks 118 will guide the cable body 18 towards the center of the pressure plate 117. When the pressure plate 117 moves to the designated position, the cable body 18 deforms under the lateral force. At this time, the first detection device 110 fixed on the fixing plate 19 is activated to detect the force on the cable body 18. When the pressure plate 117 moves towards the cable body 18, it applies a lateral force. When the cable body 18 is thinner, a pair of spring telescopic rods 21 drive the connecting block 22 to move towards the center of the pressure plate 117. At this time, a pair of guide blocks 118 also move towards the center of the pressure plate 117. When the cable body 18 is thicker, a pair of spring telescopic rods 21 are compressed. The guide block 118 moves away from the center of the pressure plate 117. When the cable body 18 is thinner or thicker, the guide block 118 moves. When the guide block 118 moves, the guide block 31 slides inside the guide groove 3. When the guide block 31 moves inside the guide groove 3, the ball 4 rolls. When the guide block 118 moves to the designated position, the multiple rollers 51 rotatably connected in the slot 5 come into contact with the cable body 18. When the rollers 51 come into contact with the cable body 18, the rollers 51 rotate. When the pressure plate 117 moves to the designated position, the rubber roller 61 rotatably connected on the fixing strip 6 comes into contact with the cable body 18.
[0030] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. A cable tension detection device, characterized by: The system includes a base (1), on which a first fixed seat (11) is fixedly connected. A motor (12) is fixedly connected to the first fixed seat (11), and a first screw (13) is fixedly connected to the output end of the motor (12). A second fixed seat (14) is fixedly connected to the base (1). The first screw (13) and the second fixed seat (14) are rotatably connected. A slider (15) is threaded onto the first screw (13). A groove (16) is provided on the base (1). The slider (15) and the groove (16) are correspondingly arranged. A fixing clamp (17) is fixedly connected to the slider (15) and then to the first fixed seat (11). A cable body (18) is provided between a pair of fixing clamps (17). A fixing plate (19) is fixedly connected to the base (1). A first detection device (110) is fixedly connected to the fixed plate (19), a second detection device (111) is fixedly connected to the first fixed base (11), a fixed column (112) is fixedly connected to the base (1), a second screw (113) is provided on the fixed column (112), the second screw (113) and the fixed column (112) are through-connected, the second screw (113) and the base (1) are rotatably connected, a fixed block (114) is threadedly connected to the second screw (113), a hydraulic cylinder (115) is fixedly connected to the fixed block (114), a hydraulic rod (116) is fixedly connected to the output end of the hydraulic cylinder (115), a pressure plate (117) is fixedly connected to the end of the hydraulic rod (116), and a pair of guide blocks (118) are provided on the pressure plate (117).
2. A cable tension detection device according to claim 1, characterised in that: The pressure plate (117) has an inner groove (2), and a pair of spring telescopic rods (21) are fixedly connected in the inner groove (2). A connecting block (22) is fixedly connected to the end of the spring telescopic rod (21), and the connecting block (22) and the guide block (118) are fixedly connected.
3. A cable tension detection device according to claim 1, wherein: The pressure plate (117) has a pair of guide grooves (3), and the guide block (118) has a pair of guide blocks (31) fixedly connected to it. The guide grooves (3) and guide blocks (31) are arranged correspondingly.
4. A cable tension detection device according to claim 3, wherein: Multiple balls (4) are rotatably connected to the guide block (31), and the balls (4) are located between the guide groove (3) and the guide block (31).
5. A cable tension detection device according to claim 4, wherein: The guide block (118) has a slot (5) and multiple rollers (51) are rotatably connected in the slot (5).
6. A cable stretch detection device according to claim 1, wherein: A pair of fixing strips (6) are fixedly connected to the pressure plate (117), and a rubber roller (61) is rotatably connected to the fixing strips (6).