Cable tensile fatigue test device

Abstract

The utility model relates to the technical field of cable tensile fatigue test, and discloses a cable tensile fatigue test device, which comprises a supporting bottom plate and an adjusting box, fixing sheets are fixed at the top of the supporting bottom plate close to two sides of the adjusting box, and buffer cotton is filled in a buffer pad. The fixing pieces are fixedly installed above the supporting bottom plate, the second installation holes are formed in the fixing pieces, the connecting plates are fixed to the lower portions of the two sides of the protective cover, and the first hook-and-loop fasteners are fixed to the two sides, the front portion and the rear portion of the inner wall of the protective cover. The first hook-and-loop fastener and the second hook-and-loop fastener are matched to complete assembly of the buffer pad in advance, the shaping plate plays a role in shaping the joint, and the buffer pad is filled with the buffer cotton, so that when the broken cable is damaged and fractured, if the cable flies, the protective cover can form protection, and the service life of the cable is prolonged. And through the assembly of the buffer pad, the problem of damage caused by the cable hitting the inner wall of the protective cover is reduced, and the overall safety is improved.

Description

Technical Field

[0001] This utility model relates to the field of cable tensile fatigue testing technology, specifically to a cable tensile fatigue testing device. Background Technology

[0002] A cable is an electrical energy or signal transmission device, usually composed of several or several groups of conductors. Generally speaking, it is used to transmit electricity or information. It consists of conductors and insulation layers and is used to connect circuits, electrical appliances, etc. It is a common component in life, so cables are also an indispensable part in power engineering.

[0003] During the manufacturing process of cables, it is necessary to predict the service life and reliability of the cables. Therefore, tensile fatigue tests are required to test the durability and performance of the cables under repeated tensile stress. This is to evaluate the performance changes of the cables after multiple tensile cycles and to predict the service life and reliability of the cables in actual use. Therefore, testing equipment is needed to complete this test. However, some cables are not strong enough and are prone to breakage during tensile tests, which can cause unnecessary injuries to workers. Utility Model Content

[0004] The purpose of this utility model is to provide a cable tensile fatigue testing device to solve the problem mentioned in the background art that in order to complete the test, a testing device is required, but some cables are not strong enough, so they are prone to breakage during tensile testing, which can cause unnecessary damage to the workers.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a cable tensile fatigue testing device, comprising a supporting base plate and an adjusting box. A fixing plate is fixed at the top of the supporting base plate near both sides of the adjusting box. A second mounting hole is formed inside the fixing plate. A connecting plate is connected to the top of the fixing plate. A first mounting hole is formed inside the connecting plate. Mounting bolts connect the connecting plate and the fixing plate. A protective cover is fixed between the connecting plates. The bottom of the protective cover is open. A hollow groove is formed inside the protective cover. First hook and loop fasteners are glued to both sides and the front and rear ends of the hollow groove. A second hook and loop fastener is glued to one end of the first hook and loop fastener. A buffer pad is connected to one end of the second hook and loop fastener. An adhesive layer is fixed inside the buffer pad. A shaping plate is fixed to one end of the adhesive layer. The buffer pad is filled with buffer cotton.

[0006] Preferably, the fixing plates are symmetrically distributed about the central axis of the supporting base plate, the second mounting holes are evenly distributed inside the fixing plates, and the connecting plates are symmetrically distributed about the central axis of the protective cover.

[0007] Preferably, the first mounting holes are evenly distributed inside the connecting plate, the buffer pads are symmetrically distributed about the central axis of the protective cover, the first and second hook and loop fasteners form an adhesive connection, and the shaping plate and the adhesive layer form an adhesive connection.

[0008] Preferably, a servo motor is installed on the right side of the adjustment box, a threaded rod is installed inside the adjustment box, a threaded block is connected to the outer wall of the threaded rod, a guide post is fixed to the top of the threaded block, and a movable vertical plate is fixed to the top of the guide post.

[0009] Preferably, a guide groove is provided in the top of the regulating box, and embedded grooves are evenly provided at both the front and rear ends of the guide groove, with ball bearings embedded inside the embedded grooves.

[0010] Preferably, the threaded block and the threaded rod form a threaded connection, and the guide post passes through the interior of the guide groove to form a guiding movement.

[0011] Preferably, a fixed vertical plate is fixed on the right side of the top of the adjustment box. Both the fixed vertical plate and the movable vertical plate have reserved grooves inside. A first insulating pad is fixed at the bottom of the reserved groove, and a first telescopic rod is installed at the top of the reserved groove. An arc-shaped plate is connected to the bottom end of the first telescopic rod.

[0012] Preferably, a retaining spring is connected to the bottom end of the arc-shaped plate, a clamping plate is connected to the bottom end of the retaining spring, and a second insulating pad is bonded to the bottom of the clamping plate.

[0013] Compared with the prior art, the beneficial effects of this utility model are: this cable tensile fatigue testing device not only improves safety, but also improves the fixing ability and adjustment protection ability of the cable tensile fatigue testing device.

[0014] (1) By fixing the fixing plate on the upper position of the support base plate, and opening the second mounting hole in the fixing plate, and fixing the connecting plate on the lower position of both sides of the protective cover, the protective cover can be covered on the outside of the adjustment box and the whole when the cable tensile fatigue test is carried out. At this time, the connecting plate is placed on the upper position of the fixing plate, and the second mounting hole and the first mounting hole are aligned one by one. The connection between the connecting plate and the fixing plate is locked by the mounting bolt, thus forming external protection by the protective cover. The first Velcro is fixed on both sides and the front and back positions of the inner wall of the protective cover. The first Velcro and the second Velcro are used to complete the assembly of the buffer pad in advance. The shaping plate plays the role of shaping the connection. Since the buffer pad is filled with buffer cotton, if the broken cable breaks and flies, the protective cover can provide protection. The assembly of the buffer pad reduces the damage caused by the cable hitting the inner wall of the protective cover and improves the overall safety.

[0015] (2) By fixing the movable vertical plate at the top of the guide column and the fixed vertical plate at the right side of the top of the adjustment box, the fixed vertical plate is the fixed end and the movable vertical plate is the movable end. One end of the cable is located in the reserved groove of the fixed vertical plate and the other end is located in the reserved groove of the movable vertical plate. The bottom position is insulated and protected by the first insulating pad. After the first telescopic rod is started, the arc plate moves down and the clamping plate and the second insulating pad cooperate to form direct contact, thereby achieving the purpose of fixing both ends of the cable. When pressed down, the snap ring forms a certain buffer protection, thereby improving the fixing ability.

[0016] (3) By installing and fixing the movable vertical plate at the top of the guide column, the threaded rod will rotate after the servo motor starts working. The threaded block and the threaded rod will cooperate to form a transverse path and be guided by the guide groove and the guide column. When the guide column moves in the guide groove, the grooves are opened in the front and back of the guide groove. Therefore, the grooves cooperate with the balls to form a certain rolling protection, thereby improving the adjustment and protection capabilities during the operation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0018] Figure 2 This is a side view of the fixed vertical plate structure of this utility model;

[0019] Figure 3 This is a bottom view of the protective cover structure of this utility model;

[0020] Figure 4 For the present utility model Figure 1 Enlarged cross-sectional view of point A in the middle;

[0021] Figure 5 This is a partial bottom view cross-sectional structural diagram of the protective cover of this utility model;

[0022] Figure 6 This is a partial top view of the regulating box of this utility model.

[0023] In the diagram: 1. Support base plate; 2. Adjustment box; 3. Threaded block; 4. Threaded rod; 5. Guide groove; 6. Servo motor; 7. Fixing plate; 8. Fixing vertical plate; 9. Protective cover; 10. Movable vertical plate; 11. Guide column; 12. First telescopic rod; 13. Arc plate; 14. Clamping plate; 15. Reserved groove; 16. First insulating pad; 17. Second insulating pad; 18. Snap ring; 19. Buffer pad; 20. Connecting plate; 21. First mounting hole; 22. Mounting bolt; 23. Second mounting hole; 24. First Velcro; 25. Second Velcro; 26. Buffer cotton; 27. Shaping plate; 28. Adhesive layer; 29. ​​Embedded groove; 30. Ball bearing. Detailed Implementation

[0024] 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 protection scope of the present utility model.

[0025] Please see Figure 1-6 An embodiment of this utility model provides a cable tensile fatigue testing device, comprising a supporting base plate 1 and an adjusting box 2. A fixing plate 7 is fixed at the top of the supporting base plate 1 near both sides of the adjusting box 2. The fixing plate 7 has a second mounting hole 23 inside. A connecting plate 20 is connected to the top of the fixing plate 7. A first mounting hole 21 is opened inside the connecting plate 20. An mounting bolt 22 connects the connecting plate 20 and the fixing plate 7. A protective cover 9 is fixed between the connecting plates 20. The bottom of the protective cover 9 is open. A hollow groove is formed inside the protective cover 9. First hook and loop fasteners 24 are glued to both sides and the front and rear ends of the hollow groove. A second hook and loop fastener 25 is glued to one end of the first hook and loop fastener 24. A buffer pad 19 is connected to one end of the second hook and loop fastener 25. An adhesive layer 28 is fixed inside the buffer pad 19. A shaping plate 27 is fixed to one end of the adhesive layer 28. The buffer pad 19 is filled with buffer cotton 26.

[0026] The fixing plates 7 are symmetrically distributed about the central axis of the supporting base plate 1, the second mounting holes 23 are evenly distributed inside the fixing plates 7, and the connecting plates 20 are symmetrically distributed about the central axis of the protective cover 9.

[0027] The first mounting holes 21 are evenly distributed inside the connecting plate 20, the buffer pads 19 are symmetrically distributed about the central axis of the protective cover 9, the first hook and loop fastener 24 and the second hook and loop fastener 25 form an adhesive connection, and the shaping plate 27 and the adhesive layer 28 form an adhesive connection.

[0028] A servo motor 6 is installed on the right side of the regulating box 2. A threaded rod 4 is installed inside the regulating box 2. A threaded block 3 is connected to the outer wall of the threaded rod 4. A guide post 11 is fixed to the top of the threaded block 3. A movable vertical plate 10 is fixed to the top of the guide post 11.

[0029] The top of the regulating box 2 is provided with a guide groove 5, and the front and rear ends of the guide groove 5 are evenly provided with embedded grooves 29, and the inside of the embedded grooves 29 is embedded with balls 30.

[0030] A threaded connection is formed between the threaded block 3 and the threaded rod 4, and the guide post 11 passes through the interior of the guide groove 5 to form a guiding movement.

[0031] A fixed vertical plate 8 is fixed on the right side of the top of the regulating box 2. Both the fixed vertical plate 8 and the movable vertical plate 10 have reserved grooves 15 inside. A first insulating pad 16 is fixed at the bottom of the reserved groove 15. A first telescopic rod 12 is installed at the top of the reserved groove 15. An arc plate 13 is connected to the bottom of the first telescopic rod 12.

[0032] A retaining ring 18 is connected to the bottom end of the arc plate 13, a clamping plate 14 is connected to the bottom end of the retaining ring 18, and a second insulating pad 17 is glued to the bottom of the clamping plate 14.

[0033] Furthermore, when assembling the cable, the position of the movable vertical plate 10 needs to be adjusted according to the initial length of the cable so that the distance between the movable vertical plate 10 and the fixed vertical plate 8 meets the length requirements, and then the two ends of the cable are fixedly assembled.

[0034] Furthermore, the shaping plate 27 is fixed inside the buffer pad 19 using the adhesive layer 28. Therefore, the position of the shaping plate 27 is the position where the buffer pad 19 is assembled, which serves the purpose of flat assembly.

[0035] Working principle: First, during operation, one end of the cable is placed in the reserved groove 15 of the fixed vertical plate 8, and the other end is placed in the reserved groove 15 of the movable vertical plate 10. The bottom position is insulated and protected by the first insulating pad 16. After the first telescopic rod 12 is activated, it drives the arc plate 13 to move down. The clamping plate 14 and the second insulating pad 17 cooperate to form direct contact, thereby fixing both ends of the cable. Then, the protective cover 9 is placed over the adjustment box 2 and the outside of the whole. At this time, the connecting plate 20 is placed on top of the fixed plate 7, and the second mounting hole 23 and the first mounting hole 21 are aligned one by one. The connecting plate 20 and the fixed plate 7 are connected and locked by the mounting bolt 22. The protective cover 9 forms external protection. Then, after the servo motor 6 is activated, it drives the threaded rod 4 to rotate. The threaded block 3 and the threaded rod 4 cooperate to form a transverse path and are guided by the guide groove 5 and the guide post 11. In this way, the movable vertical plate 10 completes the tensile fatigue test during the left and right movement.

[0036] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A cable tensile fatigue testing device, comprising a supporting base plate (1) and an adjusting box (2), characterized in that: A fixing plate (7) is fixed at the top of the support base plate (1) near both sides of the regulating box (2). The fixing plate (7) has a second mounting hole (23) inside. A connecting plate (20) is connected to the top of the fixing plate (7). A first mounting hole (21) is opened inside the connecting plate (20). A mounting bolt (22) is connected between the connecting plate (20) and the fixing plate (7). A protective cover (9) is fixed between the connecting plates (20). The bottom of the protective cover (9) is open. In this state, a hollow groove is formed inside the protective cover (9). First hook and loop fasteners (24) are glued and fixed to both sides and the front and rear ends of the hollow groove. A second hook and loop fastener (25) is glued and connected to one end of the first hook and loop fastener (24). A cushioning pad (19) is connected to one end of the second hook and loop fastener (25). An adhesive layer (28) is fixed inside the cushioning pad (19). A shaping plate (27) is fixed to one end of the adhesive layer (28). The cushioning pad (19) is filled with cushioning cotton (26).

2. The cable tensile fatigue testing device according to claim 1, characterized in that: The fixing plate (7) is symmetrically distributed about the central axis of the supporting base plate (1), the second mounting hole (23) is evenly distributed inside the fixing plate (7), and the connecting plate (20) is symmetrically distributed about the central axis of the protective cover (9).

3. The cable tensile fatigue testing device according to claim 1, characterized in that: The first mounting holes (21) are evenly distributed inside the connecting plate (20), the buffer pads (19) are symmetrically distributed about the central axis of the protective cover (9), the first hook and loop fastener (24) and the second hook and loop fastener (25) form an adhesive connection, and the shaping plate (27) and the adhesive layer (28) form an adhesive connection.

4. The cable tensile fatigue testing device according to claim 1, characterized in that: A servo motor (6) is installed on the right side of the regulating box (2). A threaded rod (4) is installed inside the regulating box (2). A threaded block (3) is connected to the outer wall of the threaded rod (4). A guide post (11) is fixed to the top of the threaded block (3). A movable vertical plate (10) is fixed to the top of the guide post (11).

5. The cable tensile fatigue testing device according to claim 1, characterized in that: The top of the regulating box (2) is provided with a guide groove (5), and the front and rear ends of the guide groove (5) are evenly provided with embedded grooves (29), and the inside of the embedded grooves (29) is embedded with balls (30).

6. The cable tensile fatigue testing device according to claim 4, characterized in that: The threaded block (3) and the threaded rod (4) form a threaded connection, and the guide post (11) passes through the interior of the guide groove (5) to form a guiding movement.

7. The cable tensile fatigue testing device according to claim 4, characterized in that: A fixed vertical plate (8) is fixed on the right side of the top of the regulating box (2). Both the fixed vertical plate (8) and the movable vertical plate (10) have reserved grooves (15) inside. A first insulating pad (16) is fixed at the bottom of the reserved groove (15). A first telescopic rod (12) is installed at the top of the reserved groove (15). An arc plate (13) is connected to the bottom end of the first telescopic rod (12).

8. The cable tensile fatigue testing device according to claim 7, characterized in that: The bottom end of the arc plate (13) is connected to a retaining ring (18), the bottom end of the retaining ring (18) is connected to a clamping plate (14), and the bottom of the clamping plate (14) is bonded with a second insulating pad (17).

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