Steel wire rope strand pre-tightening force uniform distribution device

Abstract

The invention relates to the technical field of steel wire rope strand pre-tightening force uniform distribution, in particular to a steel wire rope strand pre-tightening force uniform distribution device which comprises a stretching mechanism, a pressing mechanism and a uniform distribution mechanism. The stretching mechanism conducts local stretching on the large-diameter part of the steel wire rope strand, and the pressing mechanism conducts reciprocating compaction on the small-diameter part of the steel wire rope strand. Through the staged and differentiated treatment strategy, the problem that stress concentration is prone to being generated in a traditional one-time forming process is solved. By homogenizing internal stress distribution, the overall tensile strength and fatigue life of the steel wire rope strand are remarkably improved, and the risk of breakage in the using process is fundamentally reduced.

Description

Technical Field

[0001] This application relates to the technical field of uniform distribution of pretension force in wire rope strands, and in particular to a device for uniform distribution of pretension force in wire rope strands. Background Technology

[0002] In industrial production and construction engineering, wire ropes are widely used in various mechanical equipment and transportation systems as important and critical load-bearing components. A wire rope consists of multiple strands of wire rope, each strand being made up of many individual steel wires twisted together. The tightness and uniform distribution of the strands are crucial for ensuring the stability of the wire rope and extending its service life.

[0003] However, during the manufacturing process of traditional wire ropes, improper tightening or assembly can sometimes lead to uneven distribution of preload between strands. This not only reduces the load-bearing capacity of the wire rope but may also cause premature failure, increasing maintenance costs and safety hazards.

[0004] Therefore, effectively solving the problem of uneven distribution of pretension force in wire rope strands has become an urgent technical challenge. For example, patent application CN114014195B discloses a simple winch wire rope recovery pretensioning device and method. This device includes a winch, a circulation start point A and a circulation end point B located on the same side of the winch, a hemp rope, the wire rope to be recovered, a first rope clamp, a second rope clamp, a base for the wire rope pretensioning device, an upper friction shaft, a lower friction shaft, and tension / compression sensing components. This device utilizes the hemp rope, friction shaft, and sensing components to form a pretensioning system. Pretension force is applied and monitored controllably through manual traction, assisting the winch in completing wire rope recovery. It has a simple structure, low cost, strong adaptability, and measurable and controllable pretension force.

[0005] The uniformity of the strand diameter in a wire rope is the most direct macroscopic indicator of its internal preload distribution. In practice, localized expansion and contraction of the diameter indicate tension defects within the wire rope strands; expansion signifies insufficient preload and a loose structure, while contraction may indicate stress concentration and the risk of microscopic damage. This inhomogeneity in diameter is not only an external manifestation of preload problems but also a key contributing factor to the overall decline in the mechanical properties of the wire rope, shortened fatigue life, and premature failure during use.

[0006] While the aforementioned existing technologies can be applied to preload control of wire rope strands, their control effectiveness has significant limitations. The root of the problem lies in the inherent defect of uneven diameter in the original wire rope strands. Existing technologies can only provide a single form of preload control and cannot adaptively adjust to diameter fluctuations. This results in insufficient preload in the slack section and overload in the tight section, leading to uneven preload distribution within the strands and poor uniformity, creating potential problems for subsequent rope assembly. Summary of the Invention

[0007] To solve the above-mentioned technical problems, this application provides a device for uniformly distributing the preload of wire rope strands, adopting the following technical solution: A device for uniformly distributing the preload of wire rope strands, comprising: Vertical frame.

[0008] The vertical frame is equipped with two staggered reciprocating frames and a drive mechanism for driving the reciprocating frames to move back and forth. The reciprocating frames are equipped with multiple wheels that guide the wire rope strands in an S-shaped path. When the drive mechanism drives the two reciprocating frames to move apart, the wheels can open and tension the wire rope strands passing through them. The tensioning mechanism, pressing mechanism, and even distribution mechanism are sequentially arranged on the vertical frame along the direction of travel of the wire rope strands, and are used to sequentially stretch, press, and evenly distribute the wire rope strands in the tensioned state.

[0009] Preferably, a reciprocating frame is installed on the reciprocating frame, and a connecting shaft is rotatably installed on the reciprocating frame via bearings; the wheel body includes pulley one, pulley two, pulley three and pulley four, which are sequentially installed on the corresponding connecting shafts; pulley one and pulley three are driven by one reciprocating frame, and pulley two and pulley four are driven by another reciprocating frame.

[0010] Preferably, the drive mechanism is a bidirectional cylinder, which is mounted on a vertical frame via a cylinder base, and the telescopic end of the bidirectional cylinder is connected to a linkage plate mounted on the reciprocating frame.

[0011] Preferably, a plurality of limiting shafts are provided on the vertical frame and are symmetrically arranged on both sides of the second pulley and between the fourth pulley and the uniform distribution mechanism, and are rotatably mounted on the vertical frame; And the pulley six installed on the limiting shaft, which cooperates with the corresponding wheel body to form a limiting channel that restricts the lateral movement of the wire rope strands.

[0012] Preferably, the vertical frame is provided with multiple sets of leveling shafts, which are symmetrically arranged on both sides of the stretching mechanism, the pressing mechanism and the uniform distribution mechanism, and are rotatably mounted on the vertical frame.

[0013] And pulley five, mounted on the leveling shaft, is used to guide the wire rope strands in a horizontal posture through the tensioning mechanism, the pressing mechanism, and the distribution mechanism.

[0014] Preferably, the tensioning mechanism includes: Fixed frame and horizontal frame.

[0015] A sliding block mounted on a horizontal frame.

[0016] Vertical frame installed on the moving block.

[0017] A positioning roller is rotatably mounted on the top of the vertical frame, and a tension roller is vertically and adjustablely mounted on the bottom of the vertical frame. The surface of the tension roller is provided with friction pads.

[0018] The measuring frame and the measuring ring mounted on it are set on a vertical frame.

[0019] When the diameter of the wire rope strand is larger than the inner diameter of the measuring ring and gets stuck, the moving block is driven and drives the stretching roller to rise and press the strand against the positioning roller, thereby squeezing and stretching the strand.

[0020] Preferably, a lifting block is slidably mounted on the vertical frame, and the two ends of the stretching roller are rotatably mounted on it.

[0021] Rotate the linkage rod installed on the lifting block.

[0022] And a guide frame fixed to a horizontal frame, having an inclined section and a guide section mounted by a hinge, with a limit frame below the guide section.

[0023] When the moving block moves, it drives the linkage rod to slide along the guide section and the inclined section, thereby lifting the lifting block and the stretching roller.

[0024] Preferably, the pressing mechanism includes: Press the box body.

[0025] A sliding connecting block is slidably installed on the inner side wall of the pressing box.

[0026] And the pressure rollers that are rotated and installed between the sliding blocks.

[0027] The sliding block is driven to move back and forth, which drives the pressing roller to press the steel wire rope strands passing through its bottom back and forth.

[0028] Preferably, the uniform distribution mechanism includes: Uniformly distributed box.

[0029] Two sets of symmetrically arranged sliding connecting plates are evenly distributed on the inner sidewalls of the box.

[0030] And multiple evenly distributed rollers that are staggered and rotatedly mounted on two sets of movable connecting plates.

[0031] Two sets of moving connecting plates are driven to move apart, and the steel wire rope strands passing between them are reciprocated and evenly distributed by the uniformly distributed roller.

[0032] In summary, this application includes at least one of the following beneficial technical effects: 1. The tensioning mechanism designed in this invention performs localized tensioning on the larger diameter sections of the wire rope strands, while the pressing mechanism reciprocates and compacts the smaller diameter sections. This phased and differentiated processing strategy avoids the stress concentration problem that is prone to occur in traditional one-time forming processes. By homogenizing the internal stress distribution, the overall tensile strength and fatigue life of the wire rope strands are significantly improved, fundamentally reducing the risk of breakage during use.

[0033] 2. The precise guide channel for the wire rope strands is constructed through the cooperation of the limiting shaft and pulley six; the leveling shaft and pulley five ensure that the wire rope strands pass smoothly through each processing mechanism in a horizontal posture. This precise limiting and guiding system effectively prevents the wire rope strands from jumping, swaying, or deviating in posture during processing, ensuring uniform force during stretching, pressing, and distribution. This reduces the diameter deviation of the wire rope strands, resulting in a more compact and uniform structure, laying a solid foundation for subsequent rope assembly processes.

[0034] 3. This invention integrates pre-tensioning, stretching, pressing, and uniform distribution functions into a complete processing flow. The uniform distribution mechanism uses staggered rollers to perform final straightening of the wire rope strands, further correcting bending deformation and ensuring uniform distribution of pre-tension force. The final product exhibits comprehensive improvements in structural consistency, surface quality, and mechanical properties, demonstrating superior straightness, higher structural stability, and significantly reduced wear and breakage risk, thus meeting the manufacturing requirements for wire ropes. Attached Figure Description

[0035] Figure 1 This is a three-dimensional structural schematic diagram of the present invention.

[0036] Figure 2 This is a schematic diagram of a portion of the three-dimensional structure of the present invention.

[0037] Figure 3 This is a schematic diagram of the three-dimensional installation structure between the vertical frame, the horizontal shaft, the pulley five, and the reciprocating frame of the present invention.

[0038] Figure 4 This is a schematic diagram of the three-dimensional installation structure between the vertical frame, the limiting shaft, and the pulleys of the present invention.

[0039] Figure 5 This is a schematic diagram of the three-dimensional installation structure between the fixed frame, measuring frame, and measuring ring of the present invention.

[0040] Figure 6 This is a schematic diagram of the three-dimensional installation structure between the horizontal frame, the moving block, and the vertical frame of the present invention.

[0041] Figure 7 This is the present invention. Figure 6 A magnified view of part A.

[0042] Figure 8 This is a schematic diagram of the internal structure of the pressing box of the present invention.

[0043] Figure 9 This is a schematic diagram of the internal structure of the uniformly distributed box of the present invention.

[0044] Explanation of reference numerals in the attached drawings: 1. Vertical frame; 11. Limiting shaft; 12. Pulley six; 13. Leveling shaft; 14. Pulley five; 2. Reciprocating frame; 21. Return frame; 22. Connecting shaft; 23. Wheel body; 231. Pulley one; 232. Pulley two; 233. Pulley three; 234. Pulley four; 3. Drive mechanism; 31. Double-acting cylinder; 32. Linkage plate; 4. Tensioning mechanism; 41. Fixed frame; 42. Horizontal frame; 43. 44. Moving block; 44. Vertical frame; 441. Lifting block; 442. Linkage rod; 443. Guide frame; 445. Guide section; 446. Limiting frame; 45. Positioning roller; 46. Tensioning roller; 47. Friction pad; 48. Measuring frame; 49. Measuring ring; 5. Pressing mechanism; 51. Pressing box; 52. Moving connecting block; 53. Pressing roller; 6. Distribution mechanism; 61. Distribution box; 62. Moving connecting plate; 63. Distribution roller. Detailed Implementation

[0045] The following is in conjunction with the appendix Figures 1 to 9 This application will be described in further detail.

[0046] This application discloses a wire rope strand pretension uniform distribution device, which integrates pretensioning, stretching, pressing and uniform distribution functions to form a complete processing flow. By uniformizing the internal stress distribution, it significantly improves the overall tensile strength and fatigue life of the wire rope strands, fundamentally reducing the risk of breakage during use.

[0047] Reference Figure 1 as well as Figure 2 A device for uniformly distributing the preload of steel wire rope strands includes a vertical frame 1. Two U-shaped reciprocating frames 2 with their openings facing each other are arranged on the vertical frame 1, and the two reciprocating frames 2 are staggered. A drive mechanism 3 for driving the reciprocating frames 2 to move back and forth is installed on the vertical frame 1. A tensioning mechanism 4, a pressing mechanism 5, and a uniform distribution mechanism 6 are arranged sequentially along the length of the vertical frame 1.

[0048] A spiral frame 21 is installed on the vertical end face of the reciprocating frame 2. A connecting shaft 22 is rotatably installed between the vertical sections of the spiral frame 21 via bearings. Multiple wheels 23 corresponding to the spiral frame 21 are arranged sequentially along the length of the vertical frame 1. These wheels 23 are named sequentially as pulley one 231, pulley two 232, pulley three 233, and pulley four 234. The wheels 23 are installed on the connecting shaft 22. The steel wire rope strands are passed sequentially through the top of pulley one 231, the bottom of pulley two 232, the top of pulley three 233, and the bottom of pulley four 234.

[0049] Among them, pulley 1 231 and pulley 232 share a reciprocating frame 2, and pulley 232 and pulley 4 234 share a reciprocating frame 2. During the threading process, the wire rope strands pass through the tensioning mechanism 4, the pressing mechanism 5, and the even distribution mechanism 6 in sequence. When the two reciprocating frames 2 move apart, they can spread the wire rope strands apart, so that the wire rope strands are always in a taut state during the processing. This avoids problems such as insufficient tension, incomplete pressing, and uneven distribution caused by loose wire rope strands, ensuring the final processing effect.

[0050] The drive mechanism 3 includes a bidirectional cylinder 31 mounted on a vertical frame 1 via a cylinder seat, and a linkage plate 32 mounted on the reciprocating frame 2. The extension and retraction ends of the bidirectional cylinder 31 are connected to the linkage plate 32 on the corresponding side.

[0051] In actual operation, the bidirectional cylinder 31 is started. During the movement of the drive shaft of the bidirectional cylinder 31, the linkage plate 32 is moved away from each other. During the movement of the linkage plate 32, the reciprocating frame 2 is moved. During the movement of the reciprocating frame 2, the corresponding wheel body 23 is moved synchronously through the return frame 21. Among them, pulley one 231 and pulley three 233 move upward when driven by the corresponding reciprocating frame 2, and pulley two 232 and pulley four 234 move downward when driven by the corresponding reciprocating frame 2. In turn, the wheel body 23 can drive the wire rope strands to be stretched and tensioned in a continuous S-shaped direction.

[0052] During the reciprocating movement of the telescopic end of the bidirectional cylinder 31, the reciprocating frame 2 is driven to reciprocate. During the reciprocating movement of the reciprocating frame 2, the wheel 23 is driven by the cooperation of the return frame 21 and the connecting shaft 22 to reciprocate and pull the wire rope strands, thus performing pre-stretching treatment on the wire rope strands.

[0053] Furthermore, the pre-stretching treatment described above can simulate the stress state of the wire rope strands under actual load, which is equivalent to conducting a small-scale pre-loading test. This allows the wire rope strands to adapt to the tension environment before formal treatment, thus enabling them to enter the stable testing stage more quickly and exhibit a better pre-test state.

[0054] During the implementation of this invention, the wire rope strand inlet is in a free state, ensuring that the wire rope strand will not be rigidly broken during reciprocating tension.

[0055] Limiting shafts 11 are symmetrically arranged along the length of the vertical frame 1. The limiting shafts 11 are located on both sides of pulley 232. The limiting shafts 11 are also located between pulley 4 234 and the distribution mechanism 6. The limiting shafts 11 are rotatably mounted on the vertical frame 1 through bearings. Each limiting shaft 11 is equipped with pulley 6 12.

[0056] On both sides of pulley two 232, the paired limiting shafts 11 cooperate with the corresponding pulley six 12 to construct a precise limiting channel for the wire rope strands, ensuring that they are strictly constrained and pass through the bottom of pulley two 232; similarly, on one side of pulley four 234, its limiting shaft 11 cooperates with the corresponding pulley six 12 in the same way to guide and constrain the wire rope strands to pass stably through the bottom of pulley four 234.

[0057] Three sets of leveling shafts 13 are provided at each of the stretching mechanism 4, the pressing mechanism 5, and the equalizing mechanism 6. Each set of leveling shafts 13 is symmetrically distributed along the length of the vertical frame 1, and each set of leveling shafts 13 is located on both sides of the stretching mechanism 4, the pressing mechanism 5, and the equalizing mechanism 6. The leveling shafts 13 are rotatably mounted on the vertical frame 1 through bearings, and pulleys 14 are installed on the leveling shafts 13.

[0058] Furthermore, the interaction between pulley 5 14 and the flat shaft 13 ensures that the wire rope strands always pass through the tensioning mechanism 4, the pressing mechanism 5, and the distribution mechanism 6 in a horizontal state. As a result, the wire rope strands remain horizontal during tensioning and pressing, and are therefore stable during the tensioning and pressing process, preventing them from jumping up and down or swinging laterally. This ensures that the wire rope strands are subjected to uniform force, resulting in better mechanical properties.

[0059] Furthermore, in the uniform distribution mechanism 6, the pulley 5 14 and the horizontal shaft 13 work together to ensure that the wire rope strands enter or exit in a horizontal state before and after uniform distribution. This prevents additional positional interference or stress concentration due to posture changes during the uniform distribution process. The horizontal entry and exit state ensures that tension fluctuations are minimized, thereby guaranteeing that the wire rope strands are evenly arranged and have a compact structure during the uniform distribution process, laying a solid foundation for the final stable structure.

[0060] The stretching mechanism 4 includes a fixed frame 41 mounted on a vertical frame 1. A horizontal frame 42 is mounted on the end of the fixed frame 41 away from the vertical frame 1. A movable block 43 is slidably mounted on the horizontal frame 42. A vertical frame 44 is symmetrically mounted on the movable block 43 along its width direction. A positioning roller 45 is rotatably mounted on the top of the opposite surface of the vertical frame 44 via a bearing. A stretching roller 46 is provided on the bottom of the opposite surface of the vertical frame 44. A friction pad 47 is provided on the circumferential surface of the stretching roller 46. A measuring frame 48 is mounted on the part of the vertical frame 1 located between the stretching mechanism 4 and the pressing mechanism 5. A measuring ring 49 is mounted on the end of the measuring frame 48 away from the vertical frame 1.

[0061] Lifting blocks 441 are slidably installed on the vertical frame 44, and the two ends of the stretching roller 46 are mounted on the corresponding lifting blocks 441 through bearings. The end of the lifting block 441 away from the stretching roller 46 is rotatably mounted with a linkage rod 442 through a bearing. A guide frame 443 that cooperates with the linkage rod 442 is installed on the horizontal frame 42. The guide frame 443 is mounted on the horizontal frame 42 through the support vertical frame. An inclined section is provided on the side of the guide frame 443 near the pulley 232. A guide section 445 is also installed on the inclined section through a hinge, and a limiting frame 446 is installed at the bottom of the inclined section to limit the guide section 445.

[0062] To ensure that the linkage rod 442 contacts the inclined section and guide section 445 when it first moves, the initial height of the linkage rod 442 is the bottom height of the guide section 445. In specific operation, the wire rope strands pass between the positioning roller 45 and the tension roller 46 and pass through the measuring ring 49. The wire rope strands are in a moving state. When the diameter of the wire rope strands is greater than the inner diameter of the measuring ring 49, the wire rope strands are stuck at the measuring ring 49 and no longer move.

[0063] The moving block 43 is driven by an external driving force (cylinder, etc., not shown in the figure). During the movement of the moving block 43, the lifting block 441 is driven to move horizontally in sync through the vertical frame 44. During the horizontal movement of the lifting block 441, the linkage rod 442 is driven to move synchronously. During the movement of the linkage rod 442, it slides on the guide section 445 and the inclined section. At this time, since the guide section 445 is limited by the limiting frame 446, the guide section 445 will not flip downward around the hinge. Due to the limiting effect of the guide section 445 and the inclined section, the linkage rod 442 moves upward. During the upward movement of the linkage rod 442, the stretching roller 46 is driven to move upward in sync through the lifting block 441.

[0064] At this time, the tension roller 46 moves horizontally and moves upward synchronously until the linkage rod 442 moves to the horizontal section of the guide frame 443. At this time, the tension roller 46 is in close contact with the wire rope strands through the friction pad 47, and the tension roller 46 presses the wire rope strands tightly onto the positioning roller 45 through the friction pad 47. At this time, the moving block 43 continues to move. During the movement of the moving block 43, the tension roller 46 and the positioning roller 45 cooperate to squeeze and stretch the wire rope strands, which can in turn stretch the wire rope strands on the side of the measuring ring 49 near the pulley 231 and reduce its diameter. When the linkage rod 442 moves out of the horizontal section of the guide frame 443, due to the influence of the gravity of the tension roller 46, the lifting block 441 moves downward and drives the linkage rod 442 to move below the guide frame 443.

[0065] At this time, the moving block 43 is reset. When the moving block 43 is reset to the vicinity of the guide section 445, the linkage rod 442 lifts the guide section 445, causing the guide section 445 to rotate around the hinge. Since there is no guide section 445 blocking it, the linkage rod 442 can pass smoothly through the guide section 445 and reset to the starting position.

[0066] The above steps can then be used to stretch the larger diameter sections of the wire rope strands.

[0067] The pressing mechanism 5 includes a pressing box 51, which is mounted on a vertical frame 1 via connecting rods symmetrically arranged along its length. The pressing box 51 has a cavity inside, and sliding blocks 52 are slidably arranged on the inner side wall of the pressing box 51. Pressing rollers 53 are mounted together between the sliding blocks 52 via bearings.

[0068] When threading the wire rope strands, the wire rope strands need to be placed at the bottom of the pressing roller 53, and the bottom height of the pressing roller 53 is slightly less than the height of the pulley 514. This ensures that the pressing roller 53 can maintain close contact with the wire rope strands when they pass through it, meaning that there is a certain pressure between the wire rope strands and the pressing roller 53. In actual operation, during the movement of the wire rope strands, the sliding block 52 is moved by an external driving force (cylinder, etc., not shown in the figure). During the reciprocating movement of the sliding block 52, the pressing roller 53 can reciprocate and press the wire rope strands, thereby reciprocating and pressing some smaller diameter parts on the surface of the wire rope strands.

[0069] By combining the above-mentioned stretching treatment of the larger diameter portion of the wire rope strands with the above-mentioned reciprocating pressing treatment of the smaller diameter portion of the wire rope strands, the unevenness caused by one-time forming of the wire rope strands can be avoided, and the stress concentration problem caused by excessive one-time force on the wire rope strands can be reduced. This improves the overall tensile strength and fatigue life of the wire rope strands and reduces the risk of breakage during use.

[0070] The uniform distribution mechanism 6 includes a uniform distribution box 61, which is mounted on a vertical frame 1 via connecting crossbars symmetrically arranged along its length. Inside the uniform distribution box 61, two sets of movable connecting plates 62 are arranged along its height. Each set of movable connecting plates 62 is symmetrically distributed along its width and slidably arranged on the inner side wall of the uniform distribution box 61. Between each set of movable connecting plates 62, multiple staggered uniform distribution rollers 63 are evenly arranged along its length, and the uniform distribution rollers 63 are rotatably mounted on the corresponding movable connecting plates 62 via bearings.

[0071] In practice, after being reciprocated and pressed, the wire rope strands enter the uniform distribution box 61. At this time, the existing dual-axis cylinder (not shown in the figure) installed on the inner wall of the uniform distribution box 61 drives the moving connecting plate 62 to move apart. During the movement of the moving connecting plate 62, the wire rope strands can be uniformly distributed by the staggered uniform distribution rollers 63, thereby reducing the deviation of the wire rope strand diameter and making the thickness of the wire rope strands consistent. This lays the foundation for the subsequent rope assembly process. At the same time, it can slightly correct the slight bending or deformation of the wire rope strands that may occur in the early processing, making the wire rope strands straighter overall. It also avoids the formation of bulges or depressions on the surface of the wire rope strands due to uneven arrangement, reducing the risk of wear or breakage of the wire rope strands due to stress concentration during subsequent use.

[0072] The above process can evenly distribute the preload inside the wire rope strands, which can improve the overall tensile strength and fatigue life of the strands, reduce stress concentration, optimize surface morphology, and reduce the risk of wear or breakage of the wire rope strands during use.

[0073] Finally, the processed wire rope strands are collected and wound using existing collection rollers (not shown in the figure).

[0074] Working principle: The reciprocating frame 2 is equipped with four pulleys 23 via the guide frame 21 and connecting shaft 22. The wire rope strands pass over the top and bottom of the pulleys in an S-shaped path. When the reciprocating frame 2 moves apart, pulleys 1 and 3 move upwards, while pulleys 2 and 32 move downwards, spreading and tightening the wire rope strands to ensure they maintain tension throughout subsequent processing. This design simulates actual load-bearing conditions, pre-stretching the wire rope strands to adapt to the tension environment, avoiding uneven processing caused by loosening, and providing a stable foundation for subsequent processes.

[0075] To ensure precise positioning and stable posture of the wire rope strands during processing, the device is equipped with a limiting shaft 11 and a leveling shaft 13. The limiting shaft 11 is located on both sides of pulleys 232 and 234, with pulley 12 mounted on it. This pulley, in conjunction with the wire rope strands, forms a limiting channel, constraining them to strictly follow a preset path. The leveling shaft 13 is distributed on both sides of the stretching, pressing, and distributing mechanisms 6, using pulley 14 to ensure the wire rope strands remain horizontal as they enter each mechanism. This horizontal posture effectively prevents the wire rope strands from jumping or swaying under stress, ensuring uniform stress distribution during stretching, pressing, and distributing, reducing stress concentration, and improving processing efficiency and the mechanical properties of the wire rope strands.

[0076] The stretching mechanism 4 drives the vertical frame 44 and the stretching roller 46 to move horizontally via the moving block 43. The linkage rod 442 slides along the inclined guide frame 443, causing the stretching roller 46 to move upward and cooperate with the positioning roller 45 to compress the wire rope strands. When the diameter of the wire rope strand is larger than the inner diameter of the measuring ring 49, the clamp triggers the stretching, reducing the diameter to be able to pass through the measuring ring 49. The pressing mechanism 5 drives the pressing roller 53 to reciprocate and compact the wire rope strands through the sliding connecting block 52, compacting the smaller diameter parts. The combination of stretching and pressing processes the different diameter areas of the wire rope strands in stages, avoiding unevenness and stress concentration caused by one-time forming, thereby improving the tensile strength and fatigue life of the wire rope strands.

[0077] The uniform distribution mechanism 6 drives the moving connecting plate 62 via a dual-axis cylinder, which in turn drives the staggered uniform distribution rollers 63 to reciprocate and straighten the wire rope strands, reducing diameter deviation and correcting bending deformation. This process ensures that the preload inside the wire rope strands is evenly distributed and the surface is tightly packed, laying the foundation for subsequent rope assembly. Finally, the processed wire rope strands are wound around the existing collecting rollers. The entire device, through the synchronous coordination of multiple processes including pretensioning, stretching, pressing, and uniform distribution, significantly reduces the preload of the wire rope strands, improves the overall performance of the wire rope strands, reduces the risk of wear and breakage during use, and ensures its structural stability and durability.

[0078] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0079] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider 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 steel wire strand pre-tension force uniform distribution device, characterized by, The utility model relates to a kind of steel wire rope strand tensioning device, including: Vertical frame (1); Two interlaced distribution reciprocating frame (2) are provided on the vertical frame (1), and drive mechanism (3) for driving the reciprocating frame (2) to reciprocate is provided, a plurality of wheel bodies (23) for guiding steel wire rope strand to present S type path are provided on the reciprocating frame (2), when the drive mechanism (3) drives two reciprocating frames (2) to move apart, steel wire rope strand passing through can be stretched and tensioned by the wheel body (23); And tensioning mechanism (4), pressing mechanism (5) and uniform distribution mechanism (6) are sequentially provided on the vertical frame (1) along the direction of steel wire rope strand, for sequentially carrying out tensioning, pressing and uniform distribution processing to steel wire rope strand in tensioned state.

2. The steel wire strand pre-tension force uniform distribution device according to claim 1, characterized by, Reciprocating frame (2) is installed with back-shaped frame (21), connecting shaft (22) is rotatably installed on the back-shaped frame (21) by bearing;The wheel body (23) includes pulley one (231), pulley two (232), pulley three (233) and pulley four (234), which are sequentially installed on corresponding connecting shaft (22);Pulley one (231) and pulley three (233) are driven by one reciprocating frame (2), and pulley two (232) and pulley four (234) are driven by another reciprocating frame (2).

3. A steel wire strand pre-tension force uniform distribution device according to claim 1 or 2, characterized in that, The drive mechanism (3) is a double-acting cylinder (31), which is installed on the vertical frame (1) through a cylinder seat, and the telescopic end of the double-acting cylinder (31) is connected with a linkage plate (32) installed on the reciprocating frame (2).

4. The steel wire strand pre-tension force uniform distribution device according to claim 2, characterized by, The vertical frame (1) is provided with a plurality of limiting shafts (11), which are symmetrically arranged on both sides of the pulley two (232) and between the pulley four (234) and the uniform distribution mechanism (6), and are rotatably installed on the vertical frame (1); And pulley six (12) is installed on the limiting shaft (11), for cooperating with the corresponding wheel body (23) to form a limiting channel for limiting the transverse movement of the steel wire rope strand.

5. The steel wire strand pre-tension force uniform distribution device according to claim 1, characterized by, The vertical frame (1) is provided with a plurality of groups of leveling shafts (13), which are symmetrically arranged on both sides of the tensioning mechanism (4), the pressing mechanism (5) and the uniform distribution mechanism (6), and are rotatably installed on the vertical frame (1); And pulley five (14) is installed on the leveling shaft (13), for guiding the steel wire rope strand to pass through the tensioning mechanism (4), the pressing mechanism (5) and the uniform distribution mechanism (6) in a horizontal posture.

6. The steel wire strand pre-tension force uniform distribution device according to claim 1, characterized by, The tensioning mechanism (4) comprises: Fixed frame (41) and horizontal frame (42); The moving block (43) is slidably arranged on the horizontal frame (42); The vertical frame (44) is installed on the moving block (43); The positioning roller (45) is rotatably installed on the top of the vertical frame (44), and the tensioning roller (46) is arranged on the bottom of the vertical frame (44) in a lifting manner, and the surface of the tensioning roller (46) is provided with a friction pad (47); The measuring frame (48) is arranged on the vertical frame (1), and the measuring ring (49) is installed thereon. When the steel wire strand diameter is greater than the inner diameter of the measuring ring (49) and is stuck, the moving block (43) is driven to move and drive the stretching roller (46) to rise and press the strand on the positioning roller (45), and then the strand is stretched by extrusion.

7. The steel wire strand pre-tension force uniform distribution device according to claim 6, characterized by, The vertical frame (44) is slidably provided with a lifting block (441), and the two ends of the stretching roller (46) are rotatably installed on the lifting block (441); A linkage rod (442) is rotatably installed on the lifting block (441); And a guide frame (443) fixed on the horizontal frame (42) has an inclined section and a guide section (445) installed by a hinge, and a limiting frame (446) is arranged below the guide section (445); Wherein, when the moving block (43) moves, the linkage rod (442) slides along the guide section (445) and the inclined section, thereby jacking up the lifting block (441) and the stretching roller (46).

8. The steel wire strand pre-tension force uniform distribution device according to claim 1, characterized by, The pressing mechanism (5) comprises: A pressing box (51); A sliding connecting block (52) slidably arranged on the inner side wall of the pressing box (51); And a pressing roller (53) rotatably installed between the sliding connecting blocks (52); Wherein, the sliding connecting blocks (52) are driven to reciprocate, thereby driving the pressing roller (53) to reciprocate and press the steel wire strand passing from the bottom.

9. The steel wire strand pre-tension force uniform distribution device according to claim 1, characterized by, The uniform distribution mechanism (6) comprises: A uniform distribution box (61); Two groups of moving connecting plates (62) symmetrically and slidably arranged on the inner side walls of the uniform distribution box (61); And a plurality of uniform distribution rollers (63) rotatably installed on the two groups of moving connecting plates (62) in a staggered manner; Wherein, the two groups of moving connecting plates (62) are driven to move away from each other, thereby passing through the uniform distribution roller (63) to reciprocally arrange and uniformly distribute the steel wire strand passing therethrough.

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