Steel wire rope strength testing device

Abstract

The utility model discloses a steel wire rope strength testing device which comprises a machine body and a controller, a computer is placed on the top face of the controller, a portal frame is fixedly connected to the top face of the machine body, a movable cross beam is vertically arranged on the inner side of the portal frame in a sliding mode, and a bottom cross beam is fixedly connected between the bottoms of the inner side of the portal frame. The middle of the bottom cross beam is fixedly sleeved with a tension sensor, the top face of the output end of the tension sensor is fixedly connected with a square pipe, the top face of the square pipe is provided with a clamp structure, the center of the bottom face of the movable cross beam is also provided with a clamp structure, a square opening is vertically formed in the middle of the movable cross beam, and two first side grooves are formed in one side of the square opening. The two friction wheels are used for clamping the steel wire rope, so that the two friction wheels can rotate to drive the steel wire rope to move and change the position, in actual use, after the two clamp structures loosen the steel wire rope, the friction wheels can be used for changing the position of the steel wire rope to carry out strength testing on different local positions of the steel wire rope, and the steel wire rope strength testing device is more convenient to use and more practical.

Description

Technical Field

[0001] This utility model relates to the technical field of wire rope testing equipment, specifically a wire rope strength testing device. Background Technology

[0002] Wire rope is a helical bundle of steel wires twisted together according to certain rules, meeting the requirements of mechanical properties and geometric dimensions. It consists of steel wires, a core, and lubricant. Wire ropes are used in material handling machinery for lifting, traction, tensioning, and load bearing. During the production process, to ensure the quality of wire ropes, testing devices are typically used to test their strength. Currently, tensile testing machines are mainly used for strength testing. For example, Chinese utility model patent CN211904886U discloses a wire rope strength testing device, including a frame. A motor box is located on the left side of the frame, and a wire rope clamping assembly is installed on the motor box. A first drive motor is installed inside the motor box, and the output shaft of the first drive motor is connected to a first lead screw. A tension seat is passed through the first lead screw, and a wire rope clamping assembly is installed on the tension seat. A tension sensor is connected between the wire rope clamping assembly and the tension seat.

[0003] Currently, when conducting tensile tests on steel wire ropes, it is often necessary to adjust the position of the steel wire rope so that strength tests can be performed on different local parts of the steel wire rope, thereby improving the test accuracy. However, adjusting the position of the steel wire rope currently requires the removal of the steel wire rope with a clamp and then manual adjustment, which is very inconvenient to use.

[0004] Therefore, we propose a wire rope strength testing device to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a wire rope strength testing device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a wire rope strength testing device, comprising a body and a controller. A computer is placed on the top surface of the controller. A gantry frame is fixedly connected to the top surface of the body. A movable crossbeam is vertically slidably arranged on the inner side of the gantry frame. A bottom crossbeam is fixedly connected between the bottom sides of the inner side of the gantry frame. A tension sensor is fixedly sleeved in the middle of the bottom crossbeam. A square tube is fixedly connected to the top surface of the output end of the tension sensor. A clamping structure is provided on the top surface of the square tube. A clamping structure is also provided at the center of the bottom surface of the movable crossbeam. A square opening is vertically opened in the middle of the movable crossbeam. Two first side grooves are opened on one side of the square opening, and a second side groove is opened on the other side of the square opening. A left-hand lead screw is rotatably connected in one side slot, and a right-hand lead screw is rotatably connected in the other first side slot. A short shaft is fixed between the left-hand and right-hand lead screws. A second servo reduction motor is fixedly connected inside the moving crossbeam. The shaft end of the second servo reduction motor is fixedly connected to the end of the left-hand lead screw. A first side block is slidably connected in both first side slots. One end of each of the two first side blocks is slidably connected to the left-hand and right-hand lead screws. The other ends of the two first side blocks are rotatably connected to two friction wheels respectively. Two second side blocks are horizontally slidably connected in the second side slots. A first servo reduction motor is fixedly embedded in each of the second side blocks. The shaft end of the first servo reduction motor is fixedly connected to the shaft of the friction wheel.

[0007] Preferably, the clamp structure includes a plate body with a clamping opening in the middle of the plate body. Two clamping blocks are horizontally slidably connected to the clamping opening. Two toothed plates are fixed to one side of the two clamping blocks that are close to each other. A gripper cylinder is fixed to the side wall of the plate body. A through groove is opened on the side of the plate body near the gripper cylinder. The two output ends of the gripper cylinder pass through the through groove and are fixed to the ends of the two clamping blocks. The plate body is fixed to the top surface of the square tube or the bottom surface of the moving crossbeam.

[0008] Preferably, a first threaded sleeve is fixedly connected to the first side block, the left-hand lead screw is threaded to the first threaded sleeve on one of the first side blocks, and the right-hand lead screw is threaded to the first threaded sleeve on the other first side block.

[0009] Preferably, the top surface of the second side groove is an open structure, a guide rod is horizontally fixed inside the second side groove, and a guide hole is horizontally opened on each of the second side blocks, the guide hole being slidably connected to the guide rod.

[0010] Preferably, two side sliding grooves are provided on both sides of the gantry frame, and a side slider is vertically slidably connected in each side sliding groove. The side slider is fixed to the end of the moving crossbeam. A precision lead screw is vertically rotatably connected in each side sliding groove. A second threaded sleeve is fixedly connected to the side slider, and the precision lead screw is threadedly connected to the second threaded sleeve.

[0011] Preferably, the drive rod is horizontally rotatably connected inside the machine body. Two first driving bevel gears are fixed to both ends of the drive rod. A vertical shaft is fixed to the bottom end of each precision lead screw. The bottom end of the vertical shaft is located inside the machine body and is fixed to a first driven bevel gear. The first driving bevel gear meshes with the first driven bevel gear. A third servo reduction motor is fixed inside the machine body. A second driving bevel gear is fixed to the shaft end of the third servo reduction motor. A second driven bevel gear is fixedly sleeved on the drive rod. The second driving bevel gear meshes with the second driven bevel gear.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This invention utilizes two friction wheels to clamp the wire rope. The rotation of these two friction wheels can move the wire rope and change its position. In actual use, after the two clamps release the wire rope, the position of the wire rope can be changed using the friction wheels to perform strength tests on different local parts of the wire rope. This makes it more convenient and practical to use. Attached Figure Description

[0014] Figure 1 These are schematic diagrams of the main structure in the first and second embodiments of this utility model;

[0015] Figure 2 These are schematic diagrams of the cross-sectional structure at the moving crossbeam in the first and second embodiments of this utility model;

[0016] Figure 3 This is a cross-sectional view of the clamp structure in the second embodiment of the present invention;

[0017] Figure 4 This is a schematic diagram of the main body cross-section structure in the second embodiment of this utility model.

[0018] In the diagram: 1. Machine body; 2. Controller; 3. Computer; 4. Gantry frame; 5. Bottom crossbeam; 6. Square tube; 7. Fixture structure; 8. Moving crossbeam; 9. Square opening; 10. First side groove; 11. First side block; 12. Second side groove; 13. Second side block; 14. Friction wheel; 15. First servo geared motor; 16. Left-hand lead screw; 17. Right-hand lead screw; 18. First threaded sleeve; 19. Short shaft; 20. Second servo geared motor; 21. Guide rod ; 22. Guide hole; 23. Side slide groove; 24. Side slider; 25. Precision lead screw; 26. Drive rod; 27. Vertical shaft; 28. First driving bevel gear; 29. ​​First driven bevel gear; 30. Third servo geared motor; 31. Second driving bevel gear; 32. Second driven bevel gear; 33. Tension sensor; 34. Second threaded sleeve; 71. Plate; 72. Square opening; 73. Clamping block; 74. Tooth plate; 75. Grip cylinder; 76. Through groove. Detailed Implementation

[0019] 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.

[0020] Example 1:

[0021] Please see Figure 1-2 This utility model provides a technical solution: a wire rope strength testing device, including a body 1 and a controller 2. A computer 3 is placed on the top surface of the controller 2. A gantry frame 4 is fixedly connected to the top surface of the body 1. A moving crossbeam 8 is vertically slidably arranged inside the gantry frame 4. A bottom crossbeam 5 is fixedly connected between the bottom sides of the gantry frame 4. A tension sensor 33 is fixedly sleeved in the middle of the bottom crossbeam 5. A square tube 6 is fixedly connected to the top surface of the output end of the tension sensor 33. A clamping structure 7 is arranged on the top surface of the square tube 6. A clamping structure 7 is also arranged at the center of the bottom surface of the moving crossbeam 8. A square opening 9 is vertically opened in the middle of the moving crossbeam 8. Two first side grooves 10 are opened on one side of the square opening 9, and a second side groove 12 is opened on the other side of the square opening 9. Two first side blocks 11 are horizontally slidably connected in one side groove 10. The two first side blocks 11 are rotatably connected to two friction wheels 14. Two second side blocks 13 are horizontally slidably connected in the second side groove 12. A first servo reduction motor 15 is fixedly embedded in the second side block 13. The shaft end of the first servo reduction motor 15 is fixedly connected to the shaft of the friction wheel 14. The two friction wheels 14 clamp the wire rope. In this way, the rotation of the two friction wheels 14 can drive the wire rope to move and change its position. In actual use, after the two clamping structures 7 release the wire rope, the position of the wire rope can be changed by using the friction wheels 14 to perform strength tests on different local positions of the wire rope. It is more convenient and practical to use.

[0022] Example 2:

[0023] Please see Figure 1-4 This is the second embodiment of the present invention. Based on the previous embodiment, the clamp structure 7 includes a plate 71 with a clamping opening 72 in the middle. The clamping opening 72 is horizontally slidably connected to two clamping blocks 73. Two toothed plates 74 are fixed to one side of the two clamping blocks 73. A gripper cylinder 75 is fixed to the side wall of the plate 71. A through groove 76 is opened on the side of the plate 71 near the gripper cylinder 75. The two output ends of the gripper cylinder 75 pass through the through groove 76 and are fixed to the ends of the two clamping blocks 73. The plate 71 is fixed to the top surface of the square tube 6 or the bottom surface of the moving crossbeam 8. The gripper cylinder 75 drives the clamping blocks 73 to move in opposite directions to clamp the wire rope.

[0024] A left-handed lead screw 16 is rotatably connected in one of the first side slots 10, and a right-handed lead screw 17 is rotatably connected in the other first side slot 10. A short shaft 19 is fixed between the left-handed lead screw 16 and the right-handed lead screw 17. A first threaded sleeve 18 is fixed on the first side block 11. The left-handed lead screw 16 is threaded to the first threaded sleeve 18 on one of the first side blocks 11, and the right-handed lead screw 17 is threaded to the first threaded sleeve 18 on the other first side block 11. A second servo reduction motor 20 is fixed inside the moving crossbeam 8. The shaft end of the second servo reduction motor 20 is fixed to the end of the left-handed lead screw 16. The second servo reduction motor 20 can drive the two friction wheels 14 to move closer or further apart, which is convenient for clamping the wire rope and for moving the wire rope.

[0025] The top surface of the second side groove 12 is an open structure. A guide rod 21 is horizontally fixed inside the second side groove 12. A guide hole 22 is horizontally opened on each second side block 13, and the guide hole 22 is slidably sleeved with the guide rod 21.

[0026] Two side sliding grooves 23 are opened on both sides of the gantry frame 4. A side slider 24 is vertically slidably connected in each side sliding groove 23. The side slider 24 is fixed to the end of the moving crossbeam 8. A precision lead screw 25 is vertically rotatably connected in each side sliding groove 23. A second threaded sleeve 34 is fixedly connected to the side slider 24. The precision lead screw 25 is threadedly connected to the second threaded sleeve 34.

[0027] Inside the machine body 1, a horizontally rotating drive rod 26 is connected. Two first driving bevel gears 28 are fixed to both ends of the drive rod 26. A vertical shaft 27 is fixed to the bottom of each precision lead screw 25. The bottom of the vertical shaft 27 is located inside the machine body 1 and is fixed to a first driven bevel gear 29. The first driving bevel gear 28 meshes with the first driven bevel gear 29. A third servo reduction motor 30 is fixed inside the machine body 1. A second driving bevel gear 31 is fixed to the shaft end of the third servo reduction motor 30. A second driven bevel gear 32 is fixedly sleeved on the drive rod 26. The second driving bevel gear 31 meshes with the second driven bevel gear 32. The third servo reduction motor 30 drives the moving crossbeam 8 to move upward, applying tension to the wire rope. This pressure is transmitted to the bottom of the square tube. The tension is read by the tension sensor 33, and the tension curve is displayed on the computer 3, which reflects the strength status of the wire rope.

[0028] Example 3:

[0029] Please see Figure 1-4This is the third embodiment of the present invention, based on the above two embodiments. In use, the two ends of the steel wire rope sample to be tested are passed through the clamping openings 72 of the two clamping structures 7, respectively, and clamped and fixed using the gripper cylinders 75. Then, the third servo reduction motor 30 starts, driving the moving beam 8 upward to apply tension to the steel wire rope. The tension is read by the tension sensor 33, and the tension curve is displayed on the computer 3, reflecting the strength state of the steel wire rope. Next, the second servo reduction motor 20 drives the two friction wheels 14 to move and clamp the steel wire rope. Then, the gripper cylinders 75 on the two clamping structures 7 release the steel wire rope, and the two first servo reduction motors 15 drive the two friction wheels 14 to rotate, moving the steel wire rope... The rope moves vertically and stops at the desired position. Depending on whether the wire rope moves upward or downward, and according to the clamping position below the local test area, the moving beam 8 moves accordingly, causing the end of the other section of the wire rope to be tested to move to the lower clamping structure 7. Then, the two clamping structures 7 clamp the wire rope to perform strength tests on different local positions of the wire rope. This utility model uses two friction wheels 14 to clamp the wire rope. The rotation of the two friction wheels 14 can drive the wire rope to move and change its position. In actual use, after the two clamping structures 7 release the wire rope, the position of the wire rope can be changed by using the friction wheels 14 to perform strength tests on different local positions of the wire rope, making it more convenient and practical. During testing, the wire rope above the friction wheels can be stored on the top or side using other auxiliary tools, while the wire rope below the lower clamp is located inside the square tube, but the bottom of the wire rope should not touch the tension sensor.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wire rope strength testing device, comprising a body (1) and a controller (2), wherein a computer (3) is placed on the top surface of the controller (2), characterized in that: The top surface of the machine body (1) is fixed to a gantry frame (4). A moving crossbeam (8) is vertically slidably arranged inside the gantry frame (4). A bottom crossbeam (5) is fixed between the bottom surfaces of the gantry frame (4). A tension sensor (33) is fixedly sleeved in the middle of the bottom crossbeam (5). A square tube (6) is fixedly connected to the top surface of the output end of the tension sensor (33). A clamp structure (7) is provided on the top surface of the square tube (6). A clamp structure (7) is also provided at the center of the bottom surface of the moving crossbeam (8). A square opening (9) is vertically opened in the middle of the moving crossbeam (8). Two first side slots (10) are opened on one side of the square opening (9). A second side slot (12) is opened on the other side of the square opening (9). A left-hand screw (16) is rotatably connected in the groove (10), and a right-hand screw (17) is rotatably connected in the other first side groove (10). A short shaft (19) is fixed between the left-hand screw (16) and the right-hand screw (17). A second servo reduction motor (20) is fixed inside the moving crossbeam (8). The shaft end of the second servo reduction motor (20) is fixed to the end of the left-hand screw (16). A first side block (11) is slidably connected in both first side grooves (10). One end of the two first side blocks (11) is slidably connected to the left-hand screw (16) and the right-hand screw (17). The other end of the two first side blocks (11) is rotatably connected to two friction wheels (14). Two second side blocks (13) are horizontally slidably connected in the second side groove (12). A first servo reduction motor (15) is fixedly embedded in the second side block (13). The shaft end of the first servo reduction motor (15) is fixedly connected to the shaft of the friction wheel (14).

2. The wire rope strength testing device according to claim 1, characterized in that: The clamp structure (7) includes a plate (71), a clamping opening (72) is opened in the middle of the plate (71), two clamping blocks (73) are horizontally slidably connected to the clamping opening (72), two toothed plates (74) are fixed to one side of the two clamping blocks (73) close to each other, a gripper cylinder (75) is fixed to the side wall of the plate (71), a through groove (76) is opened on the side of the plate (71) close to the gripper cylinder (75), the two output ends of the gripper cylinder (75) pass through the through groove (76) and are fixed to the ends of the two clamping blocks (73), and the plate (71) is fixed to the top surface of the square tube (6) or the bottom surface of the moving crossbeam (8).

3. The wire rope strength testing device according to claim 1, characterized in that: A first threaded sleeve (18) is fixedly connected to the first side block (11), the left-hand screw (16) is threaded to the first threaded sleeve (18) on one of the first side blocks (11), and the right-hand screw (17) is threaded to the first threaded sleeve (18) on the other first side block (11).

4. The wire rope strength testing device according to claim 1, characterized in that: The top surface of the second side groove (12) is an open structure. A guide rod (21) is horizontally fixed inside the second side groove (12). A guide hole (22) is horizontally opened on each of the second side blocks (13). The guide hole (22) is slidably sleeved with the guide rod (21).

5. The wire rope strength testing device according to claim 1, characterized in that: Two side sliding grooves (23) are opened on both sides of the gantry frame (4). A side sliding block (24) is vertically slidably connected in each side sliding groove (23). The side sliding block (24) is fixed to the end of the moving crossbeam (8). A precision lead screw (25) is vertically rotatably connected in each side sliding groove (23). A second threaded sleeve (34) is fixed on the side sliding block (24). The precision lead screw (25) is threadedly connected to the second threaded sleeve (34).

6. The wire rope strength testing device according to claim 5, characterized in that: The machine body (1) is horizontally rotatably connected to a drive rod (26). Two first active bevel gears (28) are fixed at both ends of the drive rod (26). A vertical shaft (27) is fixed at the bottom end of each precision lead screw (25). The bottom end of the vertical shaft (27) is located inside the machine body (1) and is fixed to a first driven bevel gear (29). The first active bevel gear (28) meshes with the first driven bevel gear (29). A third servo reduction motor (30) is fixed inside the machine body (1). A second active bevel gear (31) is fixed at the shaft end of the third servo reduction motor (30). A second driven bevel gear (32) is fixedly sleeved on the drive rod (26). The second active bevel gear (31) meshes with the second driven bevel gear (32).

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