A cable stretching experiment device

Abstract

The present invention is applicable to the field of cable production and manufacturing, and provides a cable stretching experiment device, which includes a frame. An installation base is fixedly connected to the frame. On both sides of one end of the installation base, first brackets are provided. A first roller is rotatably arranged on the first brackets. The device further includes: a second bracket. A guiding bottom groove is formed on one side of the installation base away from the first bracket. The guiding bottom groove is arranged along the length direction of the installation base. The second bracket is slidably and clamped in the guiding bottom groove. A second roller is rotatably arranged on the second bracket; a driving unit, which is arranged on the installation base and is used to drive the second bracket to move along the length direction of the installation base. The beneficial effects are as follows: It can adjust the stretched part of the cable, stretch different length areas of the cable, and obtain data of multiple stretching experiments only through one fixing operation, with higher efficiency compared to conventional experimental devices.

Description

Technical Field

[0001] The present invention belongs to the field of cable production and manufacturing, and particularly relates to a cable stretching experiment device. Background Art

[0002] Cables are mainly used for pulling or lifting heavy objects. Currently, most conventional cables are steel wire cables. However, with the emergence of synthetic fibers, more and more cables are made of synthetic fibers, which are lightweight and have high strength.

[0003] Whether it is a steel wire cable or a cable made of synthetic fibers, it needs to be subjected to a tensile test before leaving the factory. In addition to testing whether the cable is qualified, it can also test the range of the tensile strength of the cable, which is convenient for consumers to identify and purchase.

[0004] Currently, when conducting a cable stretching experiment, multiple cable segments of equal length need to be cut from the same cable, and then both ends are fixed to the experimental device for stretching. Only by using the method of multi-sample testing can the accuracy of the data be ensured. This process requires repeated disassembly and fixing of the cable segments, which is rather cumbersome during the experiment and affects the efficiency. Summary of the Invention

[0005] The purpose of the embodiments of the present invention is to provide a cable stretching experiment device, aiming to solve the problems mentioned in the above background art.

[0006] The embodiments of the present invention are implemented as follows. A cable stretching experiment device includes a frame. An installation base is fixedly connected to the frame. On both sides at one end of the installation base, there are first brackets. A first roller is rotatably arranged on the first brackets. The device further includes:

[0007] A second bracket. A guiding bottom groove is formed on the side of the installation base far from the first brackets. The guiding bottom groove is arranged along the length direction of the installation base. The second bracket slides and is clamped in the guiding bottom groove. A second roller is rotatably arranged on the second bracket.

[0008] A driving unit. The driving unit is arranged on the installation base and is used to drive the second bracket to move along the length direction of the installation base.

[0009] A control unit. Control units are arranged on one side of both the first bracket and the second bracket, and the two control units are on the same side of the device. The control unit is used to drive the first roller and the second roller to rotate and can limit the rotation of the first roller and the second roller.

[0010] Preferably, the driving unit includes an adjusting screw rod rotatably arranged on the frame. One end of the adjusting screw rod is fixedly provided with a rotating handle. A moving block connected to the second bracket is fitted and sleeved on the adjusting screw rod.

[0011] Preferably, the control unit includes a box body fixedly connected to one side of the first bracket and the second bracket. A driving handle is rotatably arranged on the box body, and the driving handle can move along the axial directions of the first roller and the second roller. One end of the driving handle located inside the box body is fixedly connected to a sleeve sleeved on the rotating shaft of the first roller and the second roller. A first clamping structure is arranged inside the sleeve, and second clamping structures are arranged between the sleeve and the first bracket and between the sleeve and the second bracket. When the driving handle drives the sleeve to move, the first clamping structure enables the sleeve and the first roller or the second roller to rotate synchronously. When the sleeve contacts the first bracket or the second bracket, the second clamping structure is used to limit the rotation of the sleeve.

[0012] Preferably, the material of the box body is a transparent material.

[0013] Preferably, the second bracket includes a moving base slidably arranged in the guiding bottom groove of the mounting base. A lifting assembly is arranged on the moving base, and a mounting frame for mounting the second roller is arranged at the top of the lifting assembly. The lifting assembly is used to adjust the height of the second roller.

[0014] Preferably, the lifting assembly includes two cross-bar groups and a support shaft. The middle parts of the cross-bar groups are rotatably connected to the support shaft. One side of one cross-bar group is rotatably connected to the moving base, and the other side is rotatably connected to a guide seat slidably arranged on the moving base. The other cross-bar group is also connected to the guide seat. The connection mode of this cross-bar group with the mounting frame is the same as that with the moving base. An adjusting unit is further included, and the adjusting unit is used to drive the guide seat on the mounting frame to move.

[0015] Preferably, the adjusting unit includes a transmission box fixed to one side of the mounting frame of the second bracket. The transmission box and the control unit are located on different sides. A driving lead screw rotatably arranged on the transmission box is further included. The driving lead screw is in mating connection with the guide seat on the mounting frame. The second roller is connected to the driving lead screw through the transmission box. The driving lead screw is used to drive the guide seat to move.

[0016] Preferably, when the cable is wound up on the second roller, the height of the second roller decreases.

[0017] Preferably, a fixing structure for fixing the end of the cable is arranged on the second roller.

[0018] An experimental device for cable stretching provided by an embodiment of the present invention has the following beneficial effects: When this experimental device is used, a cable with a relatively long length can be intercepted for experiments. First, both ends of the cable are wound around the first roller and the second roller, and the second bracket is driven to move for tensile testing. The control unit can drive the first roller or the second roller to rotate respectively, enabling the adjustment of the stretched part on the cable, and the stretching of different length regions of the cable. Multiple tensile test data can be obtained through only one fixing operation, which is more efficient than conventional experimental devices and has good actual use effects. Description of the Drawings

[0019] Figure 1 The front view of an experimental device for cable stretching provided by an embodiment of the present invention;

[0020] Figure 2 The front sectional view of an experimental device for cable stretching provided by an embodiment of the present invention;

[0021] Figure 3 For Figure 1 The sectional view at A - A in

[0022] Figure 4 The structural schematic diagram of the second bracket provided by an embodiment of the present invention;

[0023] Figure 5 For Figure 3 The partial enlarged view at C in

[0024] Figure 6 The three - dimensional structure diagram of the second clamping structure provided by an embodiment of the present invention;

[0025] Figure 7 For Figure 2 The partial enlarged view at B in

[0026] In the drawings: 1 - frame; 2 - mounting base; 3 - first bracket; 4 - first roller; 5 - second bracket; 501 - moving base; 502 - lifting assembly; 503 - mounting frame; 6 - guiding bottom groove; 7 - second roller; 8 - driving unit; 801 - adjusting lead screw; 802 - rotating handle; 803 - moving block; 9 - control unit; 901 - box body; 902 - driving handle; 903 - sleeve; 904 - first clamping structure; 9041 - clamping groove; 9042 - clamping bar; 905 - second clamping structure; 9051 - groove; 9052 - chuck; 9053 - teeth; 10 - cross - bar group; 11 - support shaft; 12 - guide seat; 13 - adjusting unit; 1301 - transmission box; 1302 - driving lead screw; 1303 - transmission shaft; 1304 - bevel gear; 14 - fixing structure; 1401 - pressing block. Detailed Embodiments

[0027] In order to make the objectives, technical solutions and advantages of the present invention more clear and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0028] The following describes the specific implementation of the present invention in detail with reference to specific embodiments.

[0029] As Figure 1 and Figure 2 shown, a structural diagram of a cable stretching experiment device provided by an embodiment of the present invention includes:

[0030] A frame 1, on which a mounting base 2 is fixedly connected. On both sides of one end of the mounting base 2, first brackets 3 are provided. A first roller 4 is rotatably arranged on the first brackets 3. It further includes:

[0031] A second bracket 5. A guiding bottom groove 6 is formed on one side of the mounting base 2 away from the first brackets 3. The guiding bottom groove 6 is arranged along the length direction of the mounting base 2. The second bracket 5 slides and is clamped in the guiding bottom groove 6. A second roller 7 is rotatably arranged on the second bracket 5.

[0032] A driving unit 8, which is arranged on the mounting base 2 and is used to drive the second bracket 5 to move along the length direction of the mounting base 2.

[0033] A control unit 9. The control unit 9 is arranged on one side of each of the first bracket 3 and the second bracket 5, and the two control units 9 are located on the same side of the device. The control unit 9 is used to drive the first roller 4 and the second roller 7 to rotate and can limit the rotation of the first roller 4 and the second roller 7.

[0034] In an embodiment of the present invention, when this experimental device is used, a cable with a relatively long length can be intercepted for the experiment. First, both ends of the cable are wound around the first roller 4 and the second roller 7. The second bracket 5 is driven to move for the tensile test. The control unit 9 can drive the first roller 4 or the second roller 7 to rotate respectively, so as to adjust the stretched part on the cable and stretch different length regions of the cable. Multiple tensile experiment data can be obtained only through one fixing operation, which is more efficient than conventional experimental devices and has good actual use effects.

[0035] In an example of the present invention, the driving unit 8 includes an adjusting screw rod 801 rotatably arranged on the frame 1. One end of the adjusting screw rod 801 is fixedly provided with a rotating handle 802. A moving block 803 connected to the second bracket 5 is sleeved on the adjusting screw rod 801. The driving unit 8 can also adopt a hydraulic telescopic rod to drive the second bracket 5 to move; the control unit 9 can adopt a hand crank respectively connected to the first roller 4 and the second roller 7, and a blocking rod is horizontally inserted on the hand crank. The cooperation of the blocking rod with the first bracket 3 and the second bracket 5 can limit the rotation of the hand crank, so as to ensure the smooth progress of the stretching operation.

[0036] As Figure 3 , Figure 5 and Figure 6 shown, as a preferred embodiment of the present invention, the control unit 9 may also include a box body 901 fixedly connected to one side of the first bracket 3 and the second bracket 5. A driving handle 902 is rotatably arranged on the box body 901, and the driving handle 902 can move along the axial directions of the first roller 4 and the second roller 7. One end of the driving handle 902 located inside the box body 901 is fixedly connected with a sleeve 903 sleeved on the rotating shafts of the first roller 4 and the second roller 7. A first clamping structure 904 is arranged inside the sleeve 903. Second clamping structures 905 are arranged between the sleeve 903 and the first bracket 3 and between the sleeve 903 and the second bracket 5. When the driving handle 902 drives the sleeve 903 to move, the first clamping structure 904 enables the sleeve 903 and the first roller 4 or the second roller 7 to rotate synchronously. When the sleeve 903 contacts the first bracket 3 or the second bracket 5, the second clamping structure 905 is used to limit the rotation of the sleeve 903.

[0037] In one case of this embodiment, the first clamping structure 904 can adopt a clamping groove 9041 opened inside the sleeve 903, and a clamping bar 9042 matched with the clamping groove 9041 is fixed on the rotating shafts of the first roller 4 and the second roller 7, or vice versa. The second clamping structure 905 can adopt a groove 9051 opened on the sides of the first bracket 3 and the second bracket 5. A plurality of clamping teeth 9053 are arranged on the side of the groove 9051, and a chuck 9052 with a bag mouth clamping tooth 9053 is fixed at one end of the sleeve 903 far away from the driving handle 902. When the chuck 9052 is located inside the groove 9051, the first roller 4 and the second roller 7 cannot rotate. Of course, the second clamping structure 905 can also adopt a friction braking structure. The material of the box body 901 is a transparent material, such as glass or resin, etc., so that the operator can accurately observe the position of the sleeve 903, and it is clear at a glance whether the first roller 4 and the second roller 7 can rotate.

[0038] As Figure 3 and Figure 4As shown, as a preferred embodiment of the present invention, the second bracket 5 includes a moving base 501 slidably disposed in the guiding bottom groove 6 of the mounting base 2. An elevating assembly 502 is provided on the moving base 501. The top of the elevating assembly 502 is provided with a mounting frame 503 for mounting the second roller 7. The elevating assembly 502 is used to adjust the height of the second roller 7.

[0039] In one case of this embodiment, the elevating assembly 502 includes two cross-bar groups 10 and a support shaft 11. The middle of the cross-bar group 10 is rotatably connected to the support shaft 11. One side inside one cross-bar group 10 is rotatably connected to the moving base 501, and the other side is rotatably connected to a guide base 12 slidably disposed on the moving base 501. The other cross-bar group 10 is also connected to the guide base 12. The connection manner of this cross-bar group 10 with the mounting frame 503 is the same as that with the moving base 501. It further includes an adjusting unit 13. The adjusting unit 13 is used to drive the guide base 12 on the mounting frame 503 to move. The adjusting unit 13 can adopt an electric telescopic rod that drives the support shaft 11 to move up and down. Because when different parts of the cable are stretched, the lengths of the cable wound on the first roller 4 and the second roller 7 will necessarily be different, making the cable at the stretching part not necessarily in a horizontal state. Therefore, when stretching, the acting force cannot be exerted along the length direction of the cable. So adjusting the height of the second roller 7 can keep the cable to be stretched in a horizontal state all the time, ensuring the accuracy of the experiment.

[0040] As Figure 4 shown, based on the above embodiment for supplementary explanation, the adjusting unit 13 includes a transmission box 1301 fixed on one side of the mounting frame 503 of the second bracket 5. The transmission box 1301 and the control unit 9 are on different sides. It further includes a driving lead screw 1302 rotatably disposed on the transmission box 1301. The driving lead screw 1302 is in mating connection with the guide base 12 on the mounting frame 503. The second roller 7 is connected to the driving lead screw 1302 through the transmission box 1301. The driving lead screw 1302 is used to drive the guide base 12 to move.

[0041] In one case of this embodiment, a vertical transmission shaft 1303 is provided in the transmission box 1301. The transmission shaft 1303 is in transmission connection with the second roller 7 and the driving lead screw 1302 through bevel gears 1304 respectively. By setting the direction of the thread on the driving lead screw 1302, it can be realized that when the second roller 7 winds up the cable, the height of the second roller 7 decreases. So when adjusting the stretching part of the cable, the height of the second roller 7 can be automatically adjusted. Because when the second roller 7 winds up the cable, the height of this side will necessarily increase. When the height of the second roller 7 decreases, the cable to be stretched can tend to be in a horizontal state. On the contrary, it can make the second roller 7 rise.

[0042] AsFigure 2 and Figure 7 As shown in Figure 7 , as a preferred embodiment of the present invention, a fixing structure 14 for fixing the end of the cable is provided on the second winding roller 7.

[0043] In one case of this embodiment, the fixing structure 14 may adopt a pressing block 1401 buckled on the first winding roller 4 and the second winding roller 7. When one end of the cable is pressed into the pressing block 1401, it can be automatically tightened as the cable is wound up. This method of fixing is simple and fast. Of course, the method of fixing the end of the cable with a buckle can also be adopted.

[0044] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention. Any reference signs in the claims should not be construed as limiting the claims involved.

[0045] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A cable stretching experiment device, comprising a frame, on which an installation base is fixedly connected. On both sides of one end of the installation base, first brackets are provided. A first roller is rotatably arranged on the first brackets. It is characterized in that it further comprises: A second bracket. A guiding bottom groove is formed on one side of the installation base away from the first bracket. The guiding bottom groove is arranged along the length direction of the installation base. The second bracket is slidably and clamped in the guiding bottom groove. A second roller is rotatably arranged on the second bracket; A driving unit, which is arranged on the installation base and is used to drive the second bracket to move along the length direction of the installation base; A control unit. Control units are arranged on one side of both the first bracket and the second bracket, and the two control units are located on the same side of the device. The control unit is used to drive the first roller and the second roller to rotate and can limit the rotation of the first roller and the second roller; The second bracket includes a moving base slidably arranged in the guiding bottom groove of the installation base. An elevating assembly is arranged on the moving base. The top of the elevating assembly is provided with a mounting bracket for mounting the second roller. The elevating assembly is used to adjust the height of the second roller; The elevating assembly includes two cross-bar groups and a support shaft. The middle parts of the cross-bar groups are rotatably connected to the support shaft. One side of one cross-bar group is rotatably connected to the moving base, and the other side is rotatably connected to a guide seat slidably arranged on the moving base. The other cross-bar group is also connected to the guide seat. The connection mode of this cross-bar group with the mounting bracket is the same as that with the moving base. It also includes an adjusting unit, which is used to drive the guide seat on the mounting bracket to move; The adjusting unit includes a transmission box fixed on one side of the mounting bracket of the second bracket. The transmission box is on a different side from the control unit. It also includes a driving lead screw rotatably arranged on the transmission box. The driving lead screw is in cooperative connection with the guide seat on the mounting bracket. The second roller is connected to the driving lead screw through the transmission box. The driving lead screw is used to drive the guide seat to move; When the cable is wound up on the second roller, the height of the second roller decreases.

2. The cable stretching experiment device according to claim 1, It is characterized in that the driving unit includes an adjusting lead screw rotatably arranged on the frame. One end of the adjusting lead screw is fixedly provided with a rotating handle. A moving block connected to the second bracket is cooperatively sleeved on the adjusting lead screw.

3. The cable stretching experiment device according to claim 1, It is characterized in that the control unit includes a box body fixedly connected to one side of the first bracket and the second bracket. A driving handle is rotatably arranged on the box body, and the driving handle can move along the axial direction of the first roller and the second roller. One end of the driving handle located inside the box body is fixedly connected to a sleeve sleeved on the rotating shaft of the first roller and the second roller. A first clamping structure is arranged inside the sleeve. Second clamping structures are arranged between the sleeve and the first bracket and between the sleeve and the second bracket. When the driving handle drives the sleeve to move, the first clamping structure makes the sleeve and the first roller or the second roller rotate synchronously. When the sleeve contacts the first bracket or the second bracket, the second clamping structure is used to limit the rotation of the sleeve.

4. The cable stretching experiment device according to claim 3, It is characterized in that the material of the box body is a transparent material.

5. The cable stretching experiment device according to claim 1, it is characterized in that a fixing structure for fixing the end of the cable is arranged on the second roller.

Images