A tensile strength detection device and method for steel wire rope production

Abstract

The application relates to the technical field of detection devices, and specifically discloses a tensile strength detection device for steel wire rope production and a detection method, which comprises a threaded rod, a first plate body and a second plate body, the first plate body and the second plate body can move close to each other or move away from each other, further comprises a clamping mechanism for fixing two ends of the steel wire rope, and a protection mechanism is arranged on the outer side of the clamping mechanism. The application is convenient for fixing the steel wire rope and the resisting block when the resisting block moves to the outside of the cylinder, and the steel wire rope is wound on the side wall of the resisting block. When the resisting block moves to the inside of the cylinder, the wound steel wire rope is driven to move to the inside of the cylinder, and the rotating resisting block is tightly pressed against the protruding position of the inner wall of the cylinder through the protruding structure, so that the wound steel wire rope is tightly fixed from multiple positions, the stability of the clamping and fixing of the steel wire rope is guaranteed, the resisting block is moved out of the cylinder after rotating and resetting, the steel wire rope is convenient to take down, and the steel wire rope is convenient to use for detection next time.

Description

Technical Field

[0001] This invention relates to the field of testing equipment technology, specifically to a tensile strength testing device and method for steel wire rope production. Background Technology

[0002] New materials for steel wire ropes are significantly improving safety, durability, and applicability through material innovation and process upgrades. Compared to traditional steel wire ropes, they exhibit superior performance in corrosion resistance, fatigue resistance, and wear resistance, and are widely used in industrial, construction, medical, and civilian applications. Galvanized steel wire ropes, in particular, have a layer of zinc (through hot-dip galvanizing or electro-galvanizing) applied to the surface of the steel wire during manufacturing, forming a dense and uniform metallic coating. This zinc layer fills in the original micro-unevenness of the steel wire, making the overall surface smoother.

[0003] Patent application CN121384593A discloses a device and method for testing the tensile strength of elevator wire ropes. The device aims to achieve the effect of buffering and unloading by using the viscous resistance of damping fluid to attenuate the kinetic energy of moving machinery through the cooperation between protective components and buffer components. At the same time, the buffering and damping effect is enhanced by slowing down the flow rate of the damping fluid. This design can effectively attenuate the reaction force generated when the wire rope breaks, protecting the mechanical structure of the testing equipment from damage.

[0004] Based on existing technologies, the following problems exist:

[0005] Existing tensile strength testing devices for steel wire rope production employ buffer mechanisms to mitigate the reverse force generated when the wire rope breaks. However, these typically rely on damping mechanisms such as hydraulic oil and springs. Because the reverse force generated when the wire rope breaks is rapid and substantial, damping structures like hydraulic oil cannot simultaneously provide an opposing force to counteract the force at the moment of its application. This results in insufficient buffering effectiveness, potential damage to testing equipment and mechanical structures, or complex structures that are prone to failure after a single buffering event, hindering long-term use. (Refer to the above...) The application documents describe a complex design with various buffer structures. Internal components such as damping springs and damping elements are difficult to react quickly or reset after a single buffering event, affecting subsequent use and hindering long-term testing. Furthermore, while the wire rope is clamped and fixed using a chuck, the smooth surface of some wire ropes made of new materials makes stable clamping difficult, or excessive clamping force can cause the wire rope to break at the clamping point during tensile testing, affecting the testing results. Therefore, this paper proposes a tensile strength testing device and method for wire rope production to address these issues. Summary of the Invention

[0006] To achieve the above objectives, the present invention provides the following technical solution: a tensile strength testing device for steel wire rope production, comprising a testing platform, a steel wire rope, a control console, and a chuck, and further comprising:

[0007] The threaded rods are rotatably mounted on the top of the testing table and are symmetrically arranged with respect to the center point of the testing table. The upper and lower ends of the side walls of the two threaded rods are respectively threaded to the first plate and the second plate, so as to drive the first plate and the second plate to move closer to each other or further away from each other.

[0008] The first guide rod is fixedly installed on the top of the testing table and located on both sides of the two threaded rods. The first plate and the second plate are slidably connected to the first guide rod.

[0009] A clamping mechanism is disposed on one side of the first plate and the second plate that are close to each other, for fixing both ends of the wire rope. A protective mechanism is provided on the outside of the clamping mechanism. The clamping mechanism includes:

[0010] The first housing is embedded in the bottom of the first plate. Inside the first housing, there is a cylindrical block and a first spline shaft that can move vertically. The cylindrical block and the first spline shaft are fixedly connected. The side wall diameter of the first spline shaft is smaller than the side wall diameter of the cylindrical block. Both sides of the first housing are provided with first through slots that communicate with the interior. A pressure sensor is fixedly installed at the lower end of the inner wall of the first housing.

[0011] The connector is fixedly located at the bottom of the first spline shaft, and a third plate and a fourth plate are fixedly located at the bottom of the connector.

[0012] Furthermore, the clamping mechanism also includes:

[0013] The cylinder is fixed on the side of the third plate away from the fourth plate. The inner wall of the cylinder is fitted with a stop block. The side wall of the stop block protrudes outward so that the side wall of the stop block forms a protruding structure and a concave structure, which are arranged in a ring array. The protruding structure and the concave structure are designed in an arc shape. The two sides of the protruding structure are provided with a first arc surface. The inner wall of the cylinder is adapted to the protruding structure and the concave structure, and a gap is left between the inner wall of the cylinder and the protruding structure and the concave structure.

[0014] The inclined surface is a protrusion on the inner wall of the cylinder and is located on the side of the cylinder away from the third plate.

[0015] Furthermore, the clamping mechanism also includes:

[0016] A limiting ring is rotatably mounted on the inner wall of the cylinder near the third plate. A splined sleeve is fitted on the inner wall of the limiting ring. One end of the splined sleeve is fixedly connected to the stop block, and the other end of the splined sleeve extends between the third plate and the fourth plate.

[0017] The second spline shaft is sleeved on the inner wall of the spline sleeve and extends to the side of the fourth plate away from the third plate. A second servo motor for driving the second spline shaft to rotate is fixed on the side of the fourth plate away from the third plate. The second spline shaft is rotatably connected to the fourth plate.

[0018] Furthermore, the clamping mechanism also includes:

[0019] A cylinder is fixedly mounted on the side of the third plate near the fourth plate. A piston ring is fitted on the inner wall of the cylinder. A connecting ring extending to the outside of the cylinder is fixedly mounted on the side wall of the piston ring. The inner and outer diameters of the connecting ring are smaller than the inner and outer diameters of the piston ring, respectively.

[0020] The ring body is fixedly located on the side of the connecting ring away from the piston ring, and is rotatably connected to one end of the spline sleeve located in the third and fourth plates. The cylinder has an annular design. The cylinder, piston ring, and connecting ring are all sleeved on the outside of the spline sleeve. The ring body is sleeved on the side wall of the second spline shaft. The piston ring and connecting ring are both designed with dynamic sealing with the cylinder.

[0021] Furthermore, the clamping mechanism also includes:

[0022] A limiting plate is fixedly provided with a baffle on the side of the limiting plate near the abutment block. The baffle is fixedly connected to the abutment block. A ring array of protruding plates is fixedly provided on the side wall of the baffle. A second arc surface is provided on the outer side of each protruding plate, and a third arc surface is provided on both sides of each protruding plate. The second arc surface extends radially along the cylinder to the outer side of the protruding structure. The distance between the third arc surfaces on both sides of the protruding plate is smaller than the distance between the first arc surfaces on both sides of the protruding structure.

[0023] Furthermore, the clamping mechanism also includes an auxiliary component disposed on the outside of the protruding structure, the auxiliary component including:

[0024] The second housing is embedded in the outside of the protruding structure. A buffer ring is fitted on the inner wall of the second housing. A buffer rod extending to the outside of the second housing is fixedly fitted on the inner wall of the buffer ring. A spring is fitted on the side wall of one end of the buffer rod inside the second housing. The two ends of the spring are fixedly connected to the inner wall of the second housing and the buffer ring, respectively.

[0025] A buffer plate is fixedly installed at one end of the buffer rod outside the second housing. A third groove for embedding the buffer plate is provided on the outer side of the protruding structure. The buffer plate is arc-shaped. A third guide rod is fixedly installed on the inner side of the buffer plate and on both sides of the buffer rod. The third guide rod is sleeved in the protruding structure.

[0026] Furthermore, the chuck is embedded in the top of the abutment block and located inside the concave structure for fixing the wire rope;

[0027] A second through groove is provided at the bottom of the inner wall of the cylinder to allow the steel wire rope to move.

[0028] The connector is fixedly provided with a second guide rod on the top and on both sides of the first spline shaft, and the second guide rod extends to the top of the first plate.

[0029] Furthermore, the protection mechanism includes:

[0030] The first connecting plate is fixedly installed on the side wall of the columnar block at the bottom of the first plate body. The second connecting plate is fixedly installed on the side wall of the columnar block at the top of the second plate body. There are two of each of the first and second connecting plates, and they are symmetrically arranged with respect to the center point of the columnar block. Both the first and second connecting plates are arc-shaped and extend to the outside of the wire rope.

[0031] The first connecting block is fixedly installed at the lower end of the side of the first connecting plate that is close to each other. The second connecting block is fixedly installed at the upper end of the side of the second connecting plate that is close to each other. The first connecting plate and the second connecting plate on the side of the wire rope are both provided with a sliding groove. A slider is placed inside the sliding groove. The slider is fixedly connected to the first connecting plate and the second connecting plate respectively, so that the first connecting plate and the second connecting plate on the side of the wire rope can be slidably connected.

[0032] The fastener is fixedly sleeved on the upper and lower ends of the side wall of the first guide rod and has a U-shaped design so that the fastener extends between the two first connecting plates. A fixing rod is fixedly provided on one side of the fastener located between the two first connecting plates. A hydraulic buffer cylinder is sleeved on the middle end of the side wall of the fixing rod. The first connecting block and the second connecting block are both sleeved on the side wall of the fixing rod. The fastener is slidably connected to the first connecting plate and the second connecting plate.

[0033] Furthermore, both of the threaded rods are designed as bidirectional screws, and the two threaded rods are connected at one end inside the testing table. A first servo motor is fixedly installed inside the testing table, and the output shaft of the first servo motor is fixedly connected to one of the threaded rods through a coupling to drive the two threaded rods to rotate synchronously.

[0034] The top of the first guide rod is fixedly provided with a top plate, and the bottom of the top plate is rotatably connected to the top of the two threaded rods;

[0035] The first housing has a first groove and a second groove inside that are adapted to the cylindrical block and the first spline shaft. The inner wall of the second groove has a first spline groove adapted to the first spline shaft. The pressure sensor is located on the bottom inner wall of the first groove and has a ring design.

[0036] This invention also provides a testing method for a tensile strength testing device used in steel wire rope production. The method, employing the aforementioned tensile strength testing device for steel wire rope production, includes the following steps:

[0037] S1: The two ends of the wire rope are clamped by two chucks. Then, the clamping mechanism drives the wire rope to wind and tighten from both ends, thereby completing the fixing of the wire rope.

[0038] S2: After the steel wire rope is fixed, the first plate and the second plate are moved away from each other to pull the steel wire rope. During this process, the tension value of the steel wire rope when it breaks is determined by the pressure sensor to complete the detection.

[0039] This invention provides a device and method for testing the tensile strength of steel wire ropes. Compared with the prior art, it has the following advantages:

[0040] 1. The present invention facilitates the fixing of the wire rope to the abutment block when the abutment block moves to the outside of the cylinder and wraps it around the side wall of the abutment block. When the abutment block moves into the cylinder, it drives the wrapped wire rope to move into the cylinder together. By rotating the abutment block, the abutment block is pressed against the protrusion on the inner wall of the cylinder through the protrusion structure, thereby pressing and fixing the wrapped wire rope from multiple positions, ensuring the stability of the clamping and fixing of the wire rope.

[0041] By rotating and resetting the stop block, it can be removed from the cylinder, making it easier to take off the wire rope for the next inspection.

[0042] 2. The present invention provides a certain buffer space for the wire rope through auxiliary components, thereby avoiding excessive tension on the surface of the abutment block, improving the stability of the wire rope entering the cylinder, preventing the wire rope from being squeezed and broken, facilitating the fixing of the wire rope, and preventing the wire rope from breaking at the point where it is pressed between the inner wall of the cylinder and the protruding structure during the subsequent tensioning process, thus improving the stability of subsequent testing.

[0043] 3. By positioning the second arc surface outside the protruding structure, this invention prevents the wire rope from being squeezed and falling off the side wall of the block when it enters the cylinder along with the block, thus ensuring that the protruding structure of the block's side wall and the protrusion of the inner wall of the cylinder can firmly and securely hold the wire rope together.

[0044] By making the distance between the third arc surfaces on both sides of the convex plate smaller than the distance between the first arc surfaces on both sides of the convex structure, the first arc surface is prevented from being pressed tightly against the convex part of the inner wall of the cylinder when the block rotates, thus avoiding affecting the tightness and fixation of the wire rope.

[0045] 4. This invention utilizes the characteristic that the two clamping mechanisms are far apart when the wire rope breaks, and through this characteristic, the first connecting block and the second connecting block are brought closer together and squeeze the hydraulic buffer cylinder, thereby restraining the two opposing forces. During the restraint process, the hydraulic buffer cylinder buffers the reaction force when the wire rope breaks, thus buffering the reaction force and reducing the damage to the testing equipment and mechanical structure. Moreover, the structure is simple and easy to use for long-term cycles. Attached Figure Description

[0046] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0047] Figure 2 This is a schematic diagram of the first servo motor, threaded rod, first plate, and second plate of the present invention.

[0048] Figure 3 This is a schematic diagram of the clamping mechanism, protection mechanism, and wire rope structure of the present invention;

[0049] Figure 4 This is a schematic diagram of the clamping mechanism, protection mechanism, and first plate structure of the present invention;

[0050] Figure 5 This is a schematic diagram of the clamping mechanism of the present invention;

[0051] Figure 6 This is a longitudinal sectional view of the third plate, fourth plate, connector, and first housing of the present invention.

[0052] Figure 7 This is a longitudinal sectional view of the cylinder and barrel of the present invention;

[0053] Figure 8 This is a longitudinal sectional view of the piston ring and connecting ring of the present invention;

[0054] Figure 9 This is a schematic diagram of the spline sleeve, cylinder, and limiting ring structure of the present invention;

[0055] Figure 10 This is a schematic diagram of the longitudinal cross-sectional structure of the spline sleeve of the present invention;

[0056] Figure 11 This is a schematic diagram of the longitudinal cross-sectional structure of the cylindrical body of the present invention;

[0057] Figure 12 This is a schematic diagram of the auxiliary components, chuck, stop block, and wire rope structure of the present invention;

[0058] Figure 13 This is a longitudinal sectional view of the first plate and the first shell of the present invention;

[0059] Figure 14 This is a schematic diagram of the protective mechanism structure of the present invention;

[0060] Figure 15 For the present invention Figure 14 A magnified structural diagram of A in the middle;

[0061] Figure 16 For the present invention Figure 14 A magnified structural diagram of B in the diagram.

[0062] The reference numerals in the above figures are as follows: 1. Testing table; 2. Control console; 3. Wire rope; 4. Threaded rod; 5. First guide rod; 6. Top plate; 7. First plate; 8. Clamping mechanism; 9. Protection mechanism; 10. Second plate; 11. First servo motor; 12. Chuck;

[0063] 80. Second arc surface; 81. First housing; 82. Second guide rod; 83. First through groove; 84. Cylindrical block; 85. First splined shaft; 86. Pressure sensor; 87. Connector; 88. Third plate; 89. Cylinder; 890. Baffle; 891. Cylinder; 892. Fourth plate; 893. Second servo motor; 894. Second splined shaft; 895. Connecting ring; 896. Ring body; 897. Piston ring; 898. Splined sleeve; 899. Limiting plate; 8990. Second through groove; 8991. Protruding plate; 8992. Third arc surface; 8993. Abutment; 8994. Limiting ring; 8995. First arc surface; 8996. Inclined surface; 8997. Protruding structure; 8998. Concave structure;

[0064] 801. Auxiliary components;

[0065] 8011, Buffer plate; 8012, Third guide rod; 8013, Buffer rod; 8014, Second housing; 8015, Buffer ring;

[0066] 91. Hydraulic buffer cylinder; 92. First connecting plate; 93. Fixing rod; 94. Fixing component; 95. Second connecting block; 96. Second connecting plate; 97. First connecting block; 98. Slide groove. Detailed Implementation

[0067] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0068] Example 1, please refer to Figures 1-7 A tensile strength testing device for steel wire rope production includes a testing platform 1, a steel wire rope 3, a control console 2, and a chuck 12, and further includes:

[0069] The threaded rod 4 is rotatably mounted on the top of the testing table 1 and is symmetrically arranged with respect to the center point of the testing table 1. The upper and lower ends of the side walls of the two threaded rods 4 are respectively threaded to the first plate 7 and the second plate 10, so as to drive the first plate 7 and the second plate 10 to move closer to each other or further away from each other.

[0070] The first guide rod 5 is fixedly installed on the top of the testing table 1 and located on both sides of the two threaded rods 4. The first plate 7 and the second plate 10 are slidably connected to the first guide rod 5.

[0071] A clamping mechanism 8 is disposed on one side of the first plate 7 and the second plate 10 that are close to each other, for fixing both ends of the wire rope 3. A protective mechanism 9 is provided on the outside of the clamping mechanism 8. The clamping mechanism 8 includes:

[0072] The first housing 81 is embedded in the bottom of the first plate 7. The interior of the first housing 81 is fitted with a cylindrical block 84 and a first spline shaft 85 that can move vertically within the first housing 81. The cylindrical block 84 and the first spline shaft 85 are fixedly connected. The side wall diameter of the first spline shaft 85 is smaller than the side wall diameter of the cylindrical block 84. The first housing 81 has a first through groove 83 on both sides that communicates with its interior. A pressure sensor 86 is fixedly installed on the lower end of the inner wall of the first housing 81.

[0073] The connector 87 is fixedly disposed at the bottom of the first spline shaft 85, and the bottom of the connector 87 is fixedly disposed with a third plate 88 and a fourth plate 892.

[0074] Both threaded rods 4 are designed as bidirectional screws. The two threaded rods 4 are connected at one end inside the test bench 1. The test bench 1 is fixedly equipped with a first servo motor 11. The output shaft of the first servo motor 11 is fixedly connected to one of the threaded rods 4 through a coupling to drive the two threaded rods 4 to rotate synchronously.

[0075] The top of the first guide rod 5 is fixedly provided with a top plate 6, and the bottom of the top plate 6 is rotatably connected to the top of the two threaded rods 4.

[0076] The interior of the first housing 81 has a first groove and a second groove that are adapted to the cylindrical block 84 and the first spline shaft 85. The inner wall of the second groove has a first spline groove that is adapted to the first spline shaft 85. The pressure sensor 86 is located on the bottom inner wall of the first groove and has a ring design.

[0077] In implementation, the cylinder 891, piston ring 897, and connecting ring 895 drive the ring body 896 to move closer to the cylinder 89, thereby moving the spline sleeve 898 and the stop block 8993 outside the cylinder 89. Then, the chuck 12 fixes one end of the wire rope 3, and the clamping mechanisms 8 on the adjacent sides of the first plate 7 and the second plate 10 clamp both ends of the wire rope 3. After clamping, the second servo motor 893 drives the second spline shaft 894 to rotate, thereby rotating the stop block 8993 so that the wire rope 3 is wound around the outside of the stop block 8993. After winding, the cylinder 891, etc., drive the ring body 896 to move away from the cylinder 89, thereby moving the stop block 8993. During the movement, the wire rope 3 outside the stop block 8993 moves along the inclined plane 89. 96 is squeezed between the abutment block 8993 and the cylinder 89. At this time, the protruding structure 8997 on the side wall of the abutment block 8993 is located in the concave part of the inner wall of the cylinder 89, and the concave structure 8998 on the side wall of the abutment block 8993 is located in the protruding part of the inner wall of the cylinder 89, with a gap between them, so that the wire rope 3 can enter between the abutment block 8993 and the cylinder 89. Then, the abutment block 8993 is driven to rotate by the second servo motor 893, so that the protruding structure 8997 on the side wall of the abutment block 8993 abuts against the protruding part of the inner wall of the cylinder 89, thereby squeezing and fixing the wound wire rope 3 to complete the fixing of the wire rope 3. After the steel wire rope 3 is fixed, the threaded rod 4 is rotated by the first servo motor 11, which causes the first plate 7 and the second plate 10 to move away from each other. During this process, the first spline shaft 85 is pulled downward by the abutment block 8993 and the steel wire rope 3, which in turn causes the cylindrical block 84 to move downward and press against the pressure sensor 86. The tensile force of the steel wire rope 3 at the time of breakage is determined by the value monitored by the pressure sensor 86, thus performing tensile strength testing on the steel wire rope 3. When the steel wire rope 3 breaks, the two clamping mechanisms 8 between the first plate 7 and the second plate 10 will move away from each other due to the reverse force, which in turn causes the cylindrical blocks 84 to move away from each other. The two cylindrical blocks 84 respectively cause the first connecting plate 92 and the second connecting plate 96 to move away from each other, which in turn causes the first connecting block 97 and the second connecting block 95 to move closer together and press against the hydraulic buffer cylinder 91, thereby reducing the damage to the detection equipment and mechanical structure caused by the reverse force of the two clamping mechanisms 8 at the time of breakage. After the inspection is completed, the broken wire rope 3 is removed by moving the stop block 8993 outside the cylinder 89, so that it can be inspected again.

[0078] The two threaded rods 4 are connected by a gear and chain transmission, so that when the first servo motor 11 drives one of the threaded rods 4 to rotate, the other threaded rod 4 rotates synchronously. Since both threaded rods 4 are bidirectional screws, the two threaded rods 4 drive the first plate 7 and the second plate 10 to move closer or further apart, thereby driving the two clamping mechanisms 8 to move, thereby pulling the wire rope 3 to test the tensile strength of the wire rope 3.

[0079] By connecting the first servo motor 11 and pressure sensor 86, and other electronic devices of the present invention, to the power supply and control console 2 via wires, it is convenient for actual control and use. This is prior art and will not be described in detail here.

[0080] Both ends of the first plate 7 and the second plate 10 are fixedly provided with sleeves, and the sleeves are sleeved on the side wall of the first rod body located away from the fixing member 94, so that the first plate 7, the second plate 10 and the first guide rod 5 are slidably connected to limit the movement of the first plate 7 and the second plate 10 and improve the stability of movement. This is the prior art, which is not shown in the figure and will not be described in detail here.

[0081] Please see Figures 5-12 The clamping mechanism 8 also includes:

[0082] The cylinder 89 is fixedly disposed on the side of the third plate 88 away from the fourth plate 892. The inner wall of the cylinder 89 is fitted with a stop block 8993. The side wall of the stop block 8993 protrudes outward so that the side wall of the stop block 8993 forms a protruding structure 8997 and a concave structure 8998, which are arranged in a ring array. The protruding structure 8997 and the concave structure 8998 are designed in an arc shape. The two sides of the protruding structure 8997 are provided with a first arc surface 8995. The inner wall of the cylinder 89 is adapted to the protruding structure 8997 and the concave structure 8998, and a gap is left between the inner wall of the cylinder 89 and the protruding structure 8997 and the concave structure 8998.

[0083] Inclined surface 8996 is formed on the protrusion of the inner wall of cylinder 89 and is located on the side of cylinder 89 away from the third plate 88.

[0084] The clamping mechanism 8 also includes:

[0085] The limiting ring 8994 is rotatably disposed on the inner wall of the cylinder 89 near the third plate 88. A spline sleeve 898 is sleeved on the inner wall of the limiting ring 8994. One end of the spline sleeve 898 is fixedly connected to the abutment block 8993, and the other end of the spline sleeve 898 extends between the third plate 88 and the fourth plate 892.

[0086] The second spline shaft 894 is sleeved on the inner wall of the spline sleeve 898 and extends to the side of the fourth plate 892 away from the third plate 88. The side of the fourth plate 892 away from the third plate 88 is fixedly provided with a second servo motor 893 for driving the second spline shaft 894 to rotate. The second spline shaft 894 is rotatably connected to the fourth plate 892.

[0087] The clamping mechanism 8 also includes:

[0088] Cylinder 891 is fixedly mounted on the side of the third plate 88 near the fourth plate 892. Piston ring 897 is sleeved on the inner wall of cylinder 891. Connecting ring 895 extending to the outside of cylinder 891 is fixedly mounted on the side wall of piston ring 897. The inner diameter and outer diameter of connecting ring 895 are smaller than the inner diameter and outer diameter of piston ring 897, respectively.

[0089] The ring body 896 is fixedly disposed on the side of the connecting ring 895 away from the piston ring 897, and is rotatably connected to one end of the spline sleeve 898 located in the third plate 88 and the fourth plate 892. The cylinder 891 has an annular design. The cylinder 891, piston ring 897 and connecting ring 895 are all sleeved on the outside of the spline sleeve 898. The ring body 896 is sleeved on the side wall of the second spline shaft 894. The piston ring 897 and the connecting ring 895 are both dynamically sealed with the cylinder 891.

[0090] The clamping mechanism 8 also includes:

[0091] A limiting plate 899 is provided with a baffle 890 fixedly on one side of the limiting plate 8993 near the abutment block 8993. The baffle 890 is fixedly connected to the abutment block 8993. A ring array of protruding plates 8991 is fixedly provided on the side wall of the baffle 890. A second arc surface 80 is provided on the outer side of each protruding plate 8991. A third arc surface 8992 is provided on both sides of each protruding plate 8991. The second arc surface 80 extends radially along the cylinder 89 to the outer side of the protruding structure 8997. The distance between the third arc surfaces 8992 on both sides of the protruding plate 8991 is smaller than the distance between the first arc surfaces 8995 on both sides of the protruding structure 8997.

[0092] The clamping mechanism 8 also includes an auxiliary component 801 disposed on the outside of the protruding structure 8997. The auxiliary component 801 includes:

[0093] The second housing 8014 is embedded in the outer side of the protruding structure 8997. The inner wall of the second housing 8014 is fitted with a buffer ring 8015. The inner wall of the buffer ring 8015 is fixedly fitted with a buffer rod 8013 extending to the outside of the second housing 8014. One end of the buffer rod 8013 located inside the second housing 8014 is fitted with a spring. The two ends of the spring are fixedly connected to the inner wall of the second housing 8014 and the buffer ring 8015, respectively.

[0094] A buffer plate 8011 is fixedly disposed at one end of the buffer rod 8013 located outside the second housing 8014. A third groove for embedding the buffer plate 8011 is provided on the outer side of the protruding structure 8997. The buffer plate 8011 is arc-shaped. A third guide rod 8012 is fixedly disposed on the inner side of the buffer plate 8011 and on both sides of the buffer rod 8013. The third guide rod 8012 is sleeved in the protruding structure 8997.

[0095] The chuck 12 is embedded in the top of the abutment block 8993 and located inside the recessed structure 8998 for fixing the wire rope 3.

[0096] A second through groove 8990 is provided at the bottom of the inner wall of the cylinder 89 to allow the steel wire rope 3 to move.

[0097] A second guide rod 82 is fixedly provided on the top of the connector 87 and on both sides of the first spline shaft 85, and the second guide rod 82 extends to the top of the first plate 7.

[0098] In specific implementation, during the process of fixing the wire rope 3, a high-pressure gas pipeline is first connected to the cylinder 891 to push the piston ring 897 and connecting ring 895 towards the cylinder 89, thereby driving the ring body 896 and spline sleeve 898 towards the cylinder 89, which in turn drives the abutment block 8993 to move outside the cylinder 89. After the abutment block 8993 moves outside the cylinder 89, one end of the wire rope 3 is clamped by the chuck 12. Then, the second servo motor 893 drives the second spline shaft 894 to rotate, and the second spline shaft 894 drives the spline sleeve 898 and the abutment block 8993 to rotate, so as to wind the wire rope 3 around the side wall of the abutment block 8993. After winding is completed, the piston ring 897 and connecting ring 895 are moved away from the cylinder 89 by connecting the cylinder 891 to a high-pressure air circuit, thereby moving the abutment block 8993 into the cylinder 89. During the movement, the design of the inclined surface 8996 prevents the wire rope 3 from getting stuck on the side of the cylinder 89 away from the third plate 88, thus facilitating the stable entry of the wire rope 3 between the cylinder 89 and the abutment block 8993. Subsequently, the second servo motor 893 drives the second spline shaft 894 to rotate, the second spline shaft 894 drives the spline sleeve 898 to rotate, and the spline sleeve 898 drives the abutment block 8993 to rotate. The protruding structure 8997 on the side wall of the abutment block 8993 is pressed against the protruding part of the inner wall of the cylinder 89, that is, the first arc surface 8995 of the protruding structure 8997 is pressed against the protruding part of the inner wall of the cylinder 89, so as to press the steel wire rope 3 between them, thereby clamping and fixing the wound steel wire rope 3. This avoids the new material steel wire rope 3 from affecting the stability of clamping due to its slippery surface, thus avoiding affecting the stability of the tensile strength test of the steel wire rope 3. This facilitates actual testing and use. After the test is completed, the abutment block 8993 can be rotated and reset and moved out of the cylinder 89, making it easy to remove the steel wire rope 3 for the next test.

[0099] The protruding structure and concave structure 8998 on the side wall of the abutment block 8993 are adapted to the inner wall of the cylinder 89, with a gap between them. This allows the steel wire rope 3 to be easily fixed to the abutment block 8993 and wound around the side wall of the abutment block 8993 when the abutment block 8993 moves into the cylinder 89. When the abutment block 8993 moves into the cylinder 89, it drives the wound steel wire rope 3 to move into the cylinder 89 together. By rotating the abutment block 8993, it is pressed against the protrusion of the inner wall of the cylinder 89 through the protruding structure 8997. This secures the wound steel wire rope 3 from multiple positions, ensuring the stability of the clamping and fixing of the steel wire rope 3.

[0100] The auxiliary component 801 causes the wire rope 3 to wrap around the outside of the buffer plate 8011 when it is wrapped around the side wall of the abutment block 8993. The buffer plate 8011 has a certain amount of movement space under the action of the spring. Thus, when the wire rope 3 enters the cylinder 89 together with the abutment block 8993, the protrusion on the inner wall of the cylinder 89 squeezes the wire rope 3. The wire rope 3 squeezes the buffer plate 8011 and moves closer to the abutment block 8993, thus giving the wire rope 3 a certain amount of buffer space. This prevents the wire rope 3 from being too taut on the surface of the abutment block 8993, improves the stability of the wire rope 3 entering the cylinder 89, and avoids breaking the wire rope 3. It also facilitates fixing the wire rope 3 and prevents the wire rope 3 from breaking at the point where it is pressed between the inner wall of the cylinder 89 and the protrusion structure 8997 during the subsequent tensioning process, thereby improving the stability of subsequent testing.

[0101] A protruding plate 8991 is provided on the side wall of the baffle 890, and the second arc surface 80 of the side wall of the protruding plate 8991 is located outside the protruding structure 8997, thereby blocking the wire rope 3 on the side wall of the abutment block 8993. This prevents the wire rope 3 from being squeezed and falling off the side wall of the abutment block 8993 when it enters the cylinder 89 with the abutment block 8993. This ensures that the protruding structure 8997 on the side wall of the abutment block 8993 and the protrusion of the inner wall of the cylinder 89 can tightly fix the wire rope 3. In addition, the distance between the third arc surfaces 8992 on both sides of the protruding plate 8991 is smaller than the distance between the first arc surfaces 8995 on both sides of the protruding structure 8997. This prevents the first arc surface 8995 from being affected when the abutment block 8993 rotates, thus avoiding affecting the tightness between the protrusion of the first arc surface 8995 and the inner wall of the cylinder 89, thereby preventing the tightness and fixation of the wire rope 3.

[0102] By rotatably connecting the spline sleeve 898 to the ring body 896, and through the design of the spline sleeve 898 and the second spline shaft 894, the second servo motor 893 can drive the spline sleeve 898 and the stop block 8993 to rotate, and the cylinder 891 and the like can drive the stop block 8993 to move, which is convenient for actual use in fixing the wire rope 3.

[0103] The limiting ring 8994 facilitates the limiting of the spline sleeve 898 without affecting the movement and rotation of the spline sleeve 898.

[0104] The inclined plane 8996 prevents the wire rope 3 from being blocked on the side of the cylinder 89 away from the third plate 88 as it enters the cylinder 89 along with the stop block 8993, thereby improving the stability of the wire rope 3 entering the cylinder 89.

[0105] The buffer ring 8015 is elastically pulled by the spring, so that the buffer ring 8015, the buffer rod 8013 and the buffer plate 8011 tend to move away from the center of the abutment block 8993. This allows the wire rope 3 to have a certain space through the buffer plate 8011 when it is wrapped around the side wall of the abutment block 8993, so that the wire rope 3 on the side wall of the abutment block 8993 has a certain tightening space, which makes it easier for the wire rope 3 to enter the cylinder 89 together with the abutment block 8993.

[0106] Example 2, please refer to Figures 13-16 The technical difference between this embodiment and Embodiment 1 lies in that the protection mechanism 9 includes:

[0107] The first connecting plate 92 is fixedly installed on the side wall of the columnar block 84 at the bottom of the first plate 7. The second connecting plate 96 is fixedly installed on the side wall of the columnar block 84 at the top of the second plate 10. There are two of each of the first connecting plate 92 and the second connecting plate 96, and they are symmetrically arranged with respect to the center point of the columnar block 84. Both the first connecting plate 92 and the second connecting plate 96 are arc-shaped and extend to the outside of the wire rope 3.

[0108] The first connecting block 97 is fixedly disposed at the lower end of the side of the first connecting plate 92 that is close to each other. The second connecting block 95 is fixedly disposed at the upper end of the side of the second connecting plate 96 that is close to each other. The first connecting plate 92 and the second connecting plate 96 on the side of the wire rope 3 are both provided with a sliding groove 98. A slider is placed inside the sliding groove 98. The slider is fixedly connected to the first connecting plate 92 and the second connecting plate 96 respectively, so that the first connecting plate 92 and the second connecting plate 96 on the side of the wire rope 3 are slidably connected.

[0109] The fixing member 94 is fixedly sleeved on the upper and lower ends of the side wall of the first guide rod 5 and has a U-shaped design so that the fixing member 94 extends between the two first connecting plates 92. A fixing rod 93 is fixedly installed on one side of the fixing member 94 between the two first connecting plates 92. A hydraulic buffer cylinder 91 is sleeved on the middle end of the side wall of the fixing rod 93. The first connecting block 97 and the second connecting block 95 are both sleeved on the side wall of the fixing rod 93. The fixing member 94 is slidably connected to the first connecting plate 92 and the second connecting plate 96.

[0110] In practical implementation, when the wire rope 3 breaks during the testing process, the reverse force causes the connecting parts 87, the first spline shaft 85, and the cylindrical block 84 of the two clamping mechanisms 8 to move away from each other, thereby causing the first connecting plate 92 and the second connecting plate 96 to move away from each other. This causes the first connecting block 97 and the second connecting block 95 to move closer together and squeeze the hydraulic buffer cylinder 91. Thus, by utilizing the characteristic that the two clamping mechanisms 8 move away from each other when the wire rope 3 breaks, and by using this characteristic to make the first connecting block 97 and the second connecting block 95 move closer together and squeeze the hydraulic buffer cylinder 91, the two opposing forces restrain each other. During the restraint process, the hydraulic buffer cylinder 91 buffers the reaction force of the wire rope 3 when it breaks, thereby reducing the damage to the testing equipment and mechanical structure. Moreover, the structure is simple and easy to use for long-term cycles.

[0111] By setting a first connecting plate 92 and a second connecting plate 96 on both sides of the cylindrical block 84, buffer protection is provided from both sides of the cylindrical block 84, improving the stability of the two opposing forces acting together when the wire rope 3 breaks.

[0112] By making the first connecting plate 92 and the second connecting plate 96 slidably connected, and by making both the first connecting plate 92 and the second connecting plate 96 slidably connected to the fixing member 94, the stability of the movement of the first connecting plate 92 and the second connecting plate 96 is improved.

[0113] This invention also provides a testing method for a tensile strength testing device used in steel wire rope production. The method includes the following steps:

[0114] S1: The two ends of the wire rope 3 are clamped by two chucks 12. Then, the clamping mechanism 8 drives the wire rope 3 to wind and tighten from both ends, thereby completing the fixing of the wire rope 3.

[0115] S2: After the steel wire rope 3 is fixed, the first plate 7 and the second plate 10 are moved away from each other to pull the steel wire rope 3. During this process, the tension value of the steel wire rope 3 when it breaks is determined by the pressure sensor 86 to complete the detection.

[0116] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0117] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0118] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tensile strength testing device for steel wire rope production, comprising a testing table, a steel wire rope, a control console, and a chuck, characterized in that, Also includes: The threaded rods are rotatably mounted on the top of the testing table and are symmetrically arranged with respect to the center point of the testing table. The upper and lower ends of the side walls of the two threaded rods are respectively threaded to the first plate and the second plate, so as to drive the first plate and the second plate to move closer to each other or further away from each other. The first guide rod is fixedly installed on the top of the testing table and located on both sides of the two threaded rods. The first plate and the second plate are slidably connected to the first guide rod. A clamping mechanism is disposed on one side of the first plate and the second plate that are close to each other, for fixing both ends of the wire rope. A protective mechanism is provided on the outside of the clamping mechanism. The clamping mechanism includes: The first housing is embedded in the bottom of the first plate. Inside the first housing, there is a cylindrical block and a first spline shaft that can move vertically. The cylindrical block and the first spline shaft are fixedly connected. The side wall diameter of the first spline shaft is smaller than the side wall diameter of the cylindrical block. Both sides of the first housing are provided with first through slots that communicate with the interior. A pressure sensor is fixedly installed at the lower end of the inner wall of the first housing. The connector is fixedly located at the bottom of the first spline shaft, and a third plate and a fourth plate are fixedly located at the bottom of the connector.

2. The tensile strength testing device for steel wire rope production according to claim 1, characterized in that, The clamping mechanism further includes: The cylinder is fixed on the side of the third plate away from the fourth plate. The inner wall of the cylinder is fitted with a stop block. The side wall of the stop block protrudes outward so that the side wall of the stop block forms a protruding structure and a concave structure, which are arranged in a ring array. The protruding structure and the concave structure are designed in an arc shape. The two sides of the protruding structure are provided with a first arc surface. The inner wall of the cylinder is adapted to the protruding structure and the concave structure, and a gap is left between the inner wall of the cylinder and the protruding structure and the concave structure. The inclined surface is a protrusion on the inner wall of the cylinder and is located on the side of the cylinder away from the third plate.

3. The tensile strength testing device for steel wire rope production according to claim 2, characterized in that, The clamping mechanism further includes: A limiting ring is rotatably mounted on the inner wall of the cylinder near the third plate. A splined sleeve is fitted on the inner wall of the limiting ring. One end of the splined sleeve is fixedly connected to the stop block, and the other end of the splined sleeve extends between the third plate and the fourth plate. The second spline shaft is sleeved on the inner wall of the spline sleeve and extends to the side of the fourth plate away from the third plate. A second servo motor for driving the second spline shaft to rotate is fixed on the side of the fourth plate away from the third plate. The second spline shaft is rotatably connected to the fourth plate.

4. The tensile strength testing device for steel wire rope production according to claim 3, characterized in that, The clamping mechanism further includes: A cylinder is fixedly mounted on the side of the third plate near the fourth plate. A piston ring is fitted on the inner wall of the cylinder. A connecting ring extending to the outside of the cylinder is fixedly mounted on the side wall of the piston ring. The inner and outer diameters of the connecting ring are smaller than the inner and outer diameters of the piston ring, respectively. The ring body is fixedly located on the side of the connecting ring away from the piston ring, and is rotatably connected to one end of the spline sleeve located in the third and fourth plates. The cylinder has an annular design. The cylinder, piston ring, and connecting ring are all sleeved on the outside of the spline sleeve. The ring body is sleeved on the side wall of the second spline shaft. The piston ring and connecting ring are both designed with dynamic sealing with the cylinder.

5. The tensile strength testing device for steel wire rope production according to claim 4, characterized in that, The clamping mechanism further includes: A limiting plate is fixedly provided with a baffle on the side of the limiting plate near the abutment block. The baffle is fixedly connected to the abutment block. A ring array of protruding plates is fixedly provided on the side wall of the baffle. A second arc surface is provided on the outer side of each protruding plate, and a third arc surface is provided on both sides of each protruding plate. The second arc surface extends radially along the cylinder to the outer side of the protruding structure. The distance between the third arc surfaces on both sides of the protruding plate is smaller than the distance between the first arc surfaces on both sides of the protruding structure.

6. The tensile strength testing device for steel wire rope production according to claim 4, characterized in that, The clamping mechanism further includes an auxiliary component disposed on the outside of the protruding structure, the auxiliary component including: The second housing is embedded in the outside of the protruding structure. A buffer ring is fitted on the inner wall of the second housing. A buffer rod extending to the outside of the second housing is fixedly fitted on the inner wall of the buffer ring. A spring is fitted on the side wall of one end of the buffer rod inside the second housing. The two ends of the spring are fixedly connected to the inner wall of the second housing and the buffer ring, respectively. A buffer plate is fixedly installed at one end of the buffer rod outside the second housing. A third groove for embedding the buffer plate is provided on the outer side of the protruding structure. The buffer plate is arc-shaped. A third guide rod is fixedly installed on the inner side of the buffer plate and on both sides of the buffer rod. The third guide rod is sleeved in the protruding structure.

7. The tensile strength testing device for steel wire rope production according to claim 6, characterized in that, The chuck is embedded in the top of the abutment and located inside the concave structure for fixing the wire rope; A second through groove is provided at the bottom of the inner wall of the cylinder to allow the steel wire rope to move. The connector is fixedly provided with a second guide rod on the top and on both sides of the first spline shaft, and the second guide rod extends to the top of the first plate.

8. The tensile strength testing device for steel wire rope production according to claim 1, characterized in that, The protection mechanism includes: The first connecting plate is fixedly installed on the side wall of the columnar block at the bottom of the first plate body. The second connecting plate is fixedly installed on the side wall of the columnar block at the top of the second plate body. There are two of each of the first and second connecting plates, and they are symmetrically arranged with respect to the center point of the columnar block. Both the first and second connecting plates are arc-shaped and extend to the outside of the wire rope. The first connecting block is fixedly installed at the lower end of the side of the first connecting plate that is close to each other. The second connecting block is fixedly installed at the upper end of the side of the second connecting plate that is close to each other. The first connecting plate and the second connecting plate on the side of the wire rope are both provided with a sliding groove. A slider is placed inside the sliding groove. The slider is fixedly connected to the first connecting plate and the second connecting plate respectively, so that the first connecting plate and the second connecting plate on the side of the wire rope can be slidably connected. The fastener is fixedly sleeved on the upper and lower ends of the side wall of the first guide rod and has a U-shaped design so that the fastener extends between the two first connecting plates. A fixing rod is fixedly provided on one side of the fastener located between the two first connecting plates. A hydraulic buffer cylinder is sleeved on the middle end of the side wall of the fixing rod. The first connecting block and the second connecting block are both sleeved on the side wall of the fixing rod. The fastener is slidably connected to the first connecting plate and the second connecting plate.

9. A tensile strength testing device for steel wire rope production according to claim 1, characterized in that, Both threaded rods are designed as bidirectional screws. The two threaded rods are connected at one end inside the testing table. A first servo motor is fixedly installed inside the testing table. The output shaft of the first servo motor is fixedly connected to one of the threaded rods through a coupling to drive the two threaded rods to rotate synchronously. The top of the first guide rod is fixedly provided with a top plate, and the bottom of the top plate is rotatably connected to the top of the two threaded rods; The first housing has a first groove and a second groove inside that are adapted to the cylindrical block and the first spline shaft. The inner wall of the second groove has a first spline groove adapted to the first spline shaft. The pressure sensor is located on the bottom inner wall of the first groove and has a ring design.

10. A testing method for a tensile strength testing device used in steel wire rope production, characterized in that, The tensile strength testing device for steel wire rope production according to any one of claims 1-9 includes the following steps: S1: The two ends of the wire rope are clamped by two chucks. Then, the clamping mechanism drives the wire rope to wind and tighten from both ends, thereby completing the fixing of the wire rope. S2: After the steel wire rope is fixed, the first plate and the second plate are moved away from each other to pull the steel wire rope. During this process, the tension value of the steel wire rope when it breaks is determined by the pressure sensor to complete the detection.

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