Performance prediction and evaluation system based on galvanized steel strand equipment and acquisition component

By improving the linkage shaft design and fixture structure of the galvanized steel strand testing equipment, uniform or asymmetric stretching of galvanized steel strands was achieved. This solved the shortcomings of existing equipment in terms of dynamic stress characteristics, fixture design, and centering calibration, and improved the accuracy and stability of test data, making it suitable for performance evaluation under complex working conditions.

CN121783694APending Publication Date: 2026-04-03ZHEJIANG GUANMING POWER TRANSMISSION MATERIAL CORP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-01-04
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

Existing tensile testing equipment for galvanized steel strands has shortcomings in dynamic stress characteristics, fixture design, and centering calibration, resulting in inaccurate test data and affecting the accuracy of performance prediction and product quality assessment.

Method used

It adopts a linkage shaft design with double-sided threaded shaft and half-sided threaded shaft, combined with a central acquisition probe and a special clamping structure to achieve uniform or asymmetrical stretching. It is equipped with elastic coil springs and rubber sleeves to ensure the accuracy and stability of data acquisition.

Benefits of technology

It improves the accuracy and stability of galvanized steel strand test data, adapts to performance evaluation under complex working conditions, reduces human error, and is suitable for batch testing scenarios.

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Abstract

The invention discloses a galvanized steel strand equipment-based performance prediction and evaluation system and an acquisition component, and relates to the technical field of steel strand performance test.The galvanized steel strand equipment-based performance prediction and evaluation system comprises a test main body, a test platform is assembled above the test main body, and an acquisition detection piece is assembled above the test platform; the steel strand body is a wire formed by twisting a plurality of steel wires in a spiral mode, the longitudinal axes of the outer steel wires of the steel strand body are arranged in a spiral mode, so that a threaded gap is formed in the surface of the steel strand body, the collecting and detecting piece is located in the center of the testing platform, and different modes can be adopted according to switching of different use scenes and use objects. According to one type, the double-side synchronous constant-speed tension design can be achieved by means of synchronous driving of the double-side threaded shaft, the clamp buckles on the two sides can apply equal tension to the steel strand at the same time, the fracture position falls in the center of the gauge length section with the larger probability, and therefore the accuracy of the test result is effectively improved; and reliable data support is provided for subsequent performance evaluation.
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Description

Technical Field

[0001] This invention relates to the field of steel strand performance testing technology, specifically to a performance prediction and evaluation system and data acquisition components based on galvanized steel strand equipment. Background Technology

[0002] The performance prediction and evaluation system and data acquisition components for galvanized steel strand are intelligent devices designed for tensile testing of galvanized steel strand. Their core purpose is to ensure the reliability and safety of materials in practical applications through tensile evaluation testing. Equipped with high-performance data acquisition components, the system can collect key data in real time throughout the testing process, including tensile force and deformation parameters. Built-in algorithms analyze the data instantly to predict material performance degradation trends, enabling users to fully understand the mechanical properties of galvanized steel strand. This provides a scientific basis for product quality control, engineering safety assessment, and lifespan prediction, and is widely used in power, bridge, and construction industries.

[0003] However, existing technologies still have the following drawbacks in practical applications: 1. Existing technologies generally adopt a tension method with one end fixed and the other end moving. This structural design concept is based on "static tension" and focuses on realizing the basic tension loading function, but ignores the dynamic force characteristics of the steel strand during the tensioning process. The force transmission between the fixed end and the moving end depends on the relative motion in a single direction. It lacks consideration of the real-time tensioning state of the steel strand, such as elastic deformation and stress distribution changes. In addition, the force output of the equipment drive system is concentrated at the moving end, which can easily lead to uneven tension transmission within the gauge length.

[0004] This single stretching method leads to an imbalance in the stress distribution of the gauge length of the steel strand. The area near the moving end often bears greater tension first, making the fracture location prone to shift towards the moving end. This fails to reflect the true stress performance of the entire gauge length. For long gauge length steel strands, the design of fixing one end will further exacerbate the coaxiality deviation of the force due to the sample's own weight and elastic deformation during the stretching process, resulting in errors in core indicators such as tensile strength and yield strength. In addition, this method can only achieve uniform static stretching and cannot adapt to the dynamic load scenarios that steel strands may encounter in actual service. The test data is out of sync with the actual service conditions, directly affecting the accuracy of subsequent performance predictions and making it difficult to support the performance evaluation needs under complex working conditions.

[0005] 2. Existing fixture designs are mostly oriented towards "versatility," focusing on adapting to tensile testing of various metal materials. They lack specific designs for the structural characteristics of steel strands. Steel strands are made of multiple strands twisted together, with a galvanized layer on the surface. Furthermore, there are significant differences in diameter and twist pitch among different specifications of products. Traditional wedge fixtures have fixed angles and roughness on their clamping surfaces, failing to consider these structural and material characteristics and neglecting the compatibility between the fixture and the steel strand.

[0006] The rigid clamping method of traditional wedge clamps can cause local compression damage to the ends of steel strands, destroying the stranding structure of the monofilaments and the integrity of the galvanized layer. This can lead to latent defects in the test samples in advance. When the roughness of the clamping surface is not well matched with the steel strand, slippage is likely to occur in actual testing, resulting in the inability to effectively transfer the load force. This can either force the test to be interrupted or produce false force data. In addition, compression damage and slippage can directly cause the breakage position of the steel strand to deviate from the preset gauge length. This means that the stress-strain data within the gauge length cannot accurately reflect the material's properties, seriously affecting the reliability of product quality judgment and even leading to the misjudgment of qualified products or the entry of unqualified products into the market.

[0007] 3. The existing alignment and calibration mechanisms for tensile testing equipment still rely on the operator's experience and manual adjustment. The cylindrical structure of the steel strand makes it difficult to position in the fixture, and the equipment itself lacks a sensor module for real-time monitoring of the alignment status, making it impossible to accurately capture the deviation between the tension axis and the steel strand axis. In addition, in batch testing scenarios, in order to pursue testing efficiency, companies often simplify the alignment process, and operators only perform rough calibration by visual observation without fine adjustment. Furthermore, the experience levels of different operators vary greatly, and the calibration standards are not uniform, resulting in alignment deviation becoming a common technical defect.

[0008] Manual calibration deviations can cause the tension direction to form an angle with the steel strand axis, generating an additional bending moment. This results in the steel strand bearing not only axial tension but also lateral shear force and bending moment during the stretching process, disrupting the single-force distribution. This can lead to uneven stress distribution in the gauge section of the steel strand, premature fracture at weak points, and consequently, higher or lower tensile strength test values. More seriously, the deviation data can mislead performance prediction and evaluation systems, causing them to draw performance conclusions based on erroneous data. This could result in the application of substandard steel strands in critical engineering projects such as bridges and buildings, creating potential safety hazards.

[0009] Therefore, in view of this, the present invention proposes a performance prediction and evaluation system and data acquisition components based on galvanized steel strand equipment to make up for and improve the deficiencies of the prior art. Summary of the Invention

[0010] To address the aforementioned technical problems, this invention provides a performance prediction and evaluation system and data acquisition components based on galvanized steel strand equipment, thereby resolving the technical issues raised in the background section.

[0011] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a performance prediction and evaluation system and acquisition components based on galvanized steel strand equipment, used to perform performance testing on the main body of the steel strand, including a test body, a test platform mounted on the top of the test body, and an acquisition detection component mounted on the top of the test platform. The main body of the steel strand is a wire made of multiple steel wires twisted in a spiral manner, with the longitudinal axis of the outer steel wires arranged in a spiral shape, thereby forming a thread-like gap on the surface of the main body of the steel strand, and the acquisition detection component is located at the center of the test platform. A testing auxiliary mechanism is provided above the main testing body. The testing auxiliary mechanism works in conjunction with the acquisition probe to collect and evaluate the overall stress data of the steel strand main body. The testing auxiliary mechanism includes a linkage shaft, which can change the direction of the tension on the steel strand main body according to different test states.

[0012] Furthermore, the test auxiliary mechanism includes a drive motor installed on the side of the test body, the linkage shaft is assembled on the output shaft end of the drive motor, and the linkage shaft extends laterally through the bottom of the acquisition probe and is rotatably connected to it.

[0013] Furthermore, the outer wall of the linkage shaft is symmetrically equipped with several threaded threads, and a limit baffle is slidably connected above the threaded threads, and the limit baffle is symmetrically fixedly connected to the side wall of the acquisition and detection component.

[0014] Furthermore, each of the side walls of the limiting baffles is fixedly connected to a connecting shaft, and an integral component is installed on the outer wall of the connecting shaft.

[0015] Furthermore, each end of the connecting shaft away from the threaded thread is fixedly connected to a clamp buckle, each clamp buckle has a placement slot on its upper part, and each placement slot is fitted with a rubber sleeve. The side walls of the clamp buckle are symmetrically fixedly connected to an outer cover, and the inner wall of the clamp buckle is fixedly connected to several shaft teeth.

[0016] Furthermore, the ends of several of the shaft teeth away from the clamp buckle are all designed with rounded corners, and the several shaft teeth are distributed in a form that is concentrated at the bottom and dispersed on the sides. When the steel strand body is installed inside the clamp buckle through the slot above the clamp buckle, the shaft teeth can penetrate into the external thread gap of the steel strand body.

[0017] Furthermore, the linkage shaft includes a double-threaded shaft. The threaded grooves on the outer wall of the double-threaded shaft are symmetrically distributed around the position of the acquisition and detection element, and the spiral directions of the symmetrically distributed threaded grooves are opposite. The linkage shaft is threadedly connected to the threaded thread through the threaded grooves on the outer wall, and forms a ball screw structure.

[0018] Furthermore, the integral component includes an elastic shaft, which is located between adjacent connecting shafts to ensure that the adjacent connecting shafts are integrated.

[0019] Furthermore, the linkage shaft also includes a half-threaded shaft, in which the outer wall of the half-threaded shaft away from the drive motor is a threaded surface, and the outer wall of the half-threaded shaft near the drive motor is a smooth surface. The threaded surface of the half-threaded shaft is threadedly connected to the threaded thread, thus forming a ball screw structure.

[0020] Furthermore, the integrated component also includes an elastic coil spring, which is located between adjacent connecting shafts to ensure that the adjacent connecting shafts are integrated.

[0021] Compared with the prior art, the beneficial effects of the present invention are: (1) This device can switch to different modes according to different usage scenarios and users. In one mode, the synchronous drive of the double-sided threaded shaft can realize the design of double-sided synchronous uniform tension, which allows the clamps on both sides to apply equal tension to the steel strand at the same time, so that the gauge section of the steel strand can be uniformly stressed and the breakage position is more likely to fall in the center of the gauge section, thereby effectively improving the accuracy of the test results and providing reliable data support for subsequent performance evaluation.

[0022] This device places the acquisition probe at the very center of the test platform. This layout allows for precise acquisition of data from the exact center of the steel strand's tension, perfectly matching the evenly distributed driving force on both sides. Compared to traditional acquisition methods, this targeted acquisition design avoids data redundancy and interference, greatly improving the accuracy and effectiveness of data acquisition. By acquiring the stress data of the most critical parts of the steel strand, it provides high-quality raw data for the performance prediction and evaluation system, helping to analyze the performance of the steel strand more accurately.

[0023] Meanwhile, the organic combination of symmetrical tension design and central acquisition layout significantly simplifies the alignment process before testing. In the past, operators needed to rely on their rich experience to perform manual and precise alignment, which was not only time-consuming and labor-intensive but also prone to errors. In this device, the staff only needs to place the steel strand horizontally in the placement slot of the clamp buckle without any deliberate alignment adjustment. This improvement not only reduces human error and improves testing efficiency but also makes the testing process more convenient. It is especially suitable for batch testing scenarios and can effectively save time and labor costs.

[0024] In addition, the connecting shafts are kept in an integrated connection through the elastic shaft body. This connection method ensures the coordination and consistency of the movement of the connecting shafts on both sides, further enhances the stability of the applied tension, provides a reliable guarantee for the accurate acquisition of force data, and makes the whole testing process more stable and reliable.

[0025] (2) Another mode, unlike the double-sided synchronous tensioning of Embodiment 1, cleverly realizes the single-sided tensioning mode of "one end fixed and one end moving" by switching the linkage shaft to a half-threaded shaft. This design makes the device no longer limited to the testing of symmetrical loads, but can accurately simulate the single-sided force or asymmetrical load scenarios that steel strands may encounter in actual service, such as the stress state of bridge cables after wind vibration or local damage. For steel strands with large tonnage or special structures, this single-sided tensioning method can better reproduce their real stress situation, thereby providing more reliable test data for evaluating their performance under complex working conditions, and greatly expanding the application range of the device.

[0026] To match the mechanical characteristics of unilateral tension, this device employs a gradually thickening elastic coil spring as a connecting component between the connecting shafts. First, the elastic coil spring provides gradually changing elastic support during the application of tension, effectively absorbing and buffering the instantaneous impact force generated by unilateral force, preventing damage to the equipment due to severe vibration and extending its service life. Second, this gradually changing elastic force ensures the stability and coordination of the moving end connecting shaft during movement, preventing uneven force distribution or slippage of the steel strand due to sudden changes in tension, thus ensuring the stability and accuracy of the testing process. Finally, the presence of the elastic coil spring keeps the two connecting shafts structurally integrated. Even under unilateral tension, the transmission of elastic force achieves force balance and coordination, ensuring that the acquisition probe can obtain continuous and reliable force data, providing high-quality raw information for subsequent performance evaluation.

[0027] (3) The shaft teeth on the inner wall of the clamp buckle adopt a special distribution pattern of concentrated at the bottom and dispersed on the side, and the end away from the clamp buckle is rounded. This unique structural design allows the shaft teeth to penetrate into the thread gap on the surface of the steel strand, so as to achieve a firm clamping of the steel strand and effectively prevent slippage during the force process. The rounded corner design avoids damage to the surface of the steel strand by the shaft teeth and solves the problem that traditional clamps are prone to cause local squeezing damage to the steel strand. Attached Figure Description

[0028] Figure 1 This is a front-view three-dimensional structural schematic diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the linkage shaft component in Embodiment 1 of the present invention; Figure 3 This is a schematic diagram of the planar structure of the linkage shaft in Embodiment 1 of the present invention; Figure 4 This is a schematic diagram of the three-dimensional structure of the one-piece component in Embodiment 1 of the present invention; Figure 5 This is a schematic diagram of the three-dimensional structure of the clamp buckle of the present invention; Figure 6 This is a schematic diagram of the clamp buckle side view of the present invention; Figure 7 This is a three-dimensional structural diagram of the linkage shaft component in Embodiment 2 of the present invention; Figure 8 This is a schematic diagram of the planar structure of the linkage shaft in Embodiment 2 of the present invention; Figure 9 This is a schematic diagram of the three-dimensional structure of the integrated component in Embodiment 2 of the present invention.

[0029] The numbers on the map are: 1. Test subject; 11. Test platform; 12. Data acquisition and detection device; 2. Steel strand main body; 3. Testing auxiliary mechanism; 31. Drive motor; 32. Linkage shaft; 33. Threaded thread; 3301. Limiting baffle; 34. Connecting shaft; 35. Integrated component; 36. Clamp buckle; 37. Rubber sleeve; 38. Outer cover; 39. Shaft teeth. Detailed Implementation

[0030] 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 of ordinary skill in the art without creative effort are within the scope of protection of the present invention. It should be noted that the structure and working principle of the aforementioned test subject 1, test platform 11, and acquisition and detection device 12 are existing technologies and will not be described in detail here.

[0031] Example 1 Please refer to Figure 1 - Figure 4 As shown, a performance prediction and evaluation system and acquisition components based on galvanized steel strand equipment are used to perform performance testing on the steel strand body 2. The system includes a test body 1, a test platform 11 mounted on top of the test body 1, and an acquisition detection element 12 mounted on top of the test platform 11. The steel strand body 2 is a wire made of multiple steel wires twisted in a spiral manner. The longitudinal axis of the outer steel wires is arranged in a spiral shape, thereby forming a thread-like gap on the surface of the steel strand body 2. The acquisition detection element 12 is located at the center of the test platform 11. A test auxiliary mechanism 3 is provided above the test body 1. The test auxiliary mechanism 3 and the acquisition probe 12 work together to collect and evaluate the overall force data of the steel strand body 2. The test auxiliary mechanism 3 includes a linkage shaft 32, which can change the direction of the tension on the steel strand body 2 according to different test states.

[0032] Please refer to Figure 3 - Figure 6 As shown, the test auxiliary mechanism 3 includes a drive motor 31 installed on the side of the test body 1, a linkage shaft 32 assembled on the output shaft end of the drive motor 31, and the linkage shaft 32 laterally penetrates the bottom of the acquisition and detection element 12 and is rotatably connected to it. Several threaded buckles 33 are symmetrically installed on the outer wall of the linkage shaft 32. Limiting baffles 3301 are slidably connected above the threaded buckles 33, and the limiting baffles 3301 are symmetrically and fixedly connected to the side wall of the acquisition and detection element 12. Each of the side walls of the limiting baffles 3301 is correspondingly and fixedly connected to a connecting shaft. 34. A connecting piece 35 is installed on the outer wall of the connecting shaft 34. A clamp buckle 36 is fixedly connected to the end of the connecting shaft 34 away from the threaded thread 33. A placement slot is opened on the top of the clamp buckle 36, and a rubber gasket 37 is sleeved on the outside of the placement slot. An outer cover 38 is symmetrically fixedly connected to the side wall of the clamp buckle 36, and a number of shaft teeth 39 are fixedly connected to the inner wall of the clamp buckle 36. The ends of the shaft teeth 39 away from the clamp buckle 36 are all rounded, and the shaft teeth 39 are distributed in a form that is concentrated at the bottom and dispersed on the sides.

[0033] It should be noted that the linkage shaft 32 includes a double-sided threaded shaft. The threaded grooves on the outer wall of the double-sided threaded shaft are symmetrically distributed with the position of the acquisition and detection element 12 as the center, and the spiral directions of the symmetrically distributed threaded grooves are opposite. The linkage shaft 32 is threadedly connected to the threaded buckle 33 through the threaded grooves on the outer wall, and forms a ball screw structure. The connecting part 35 includes an elastic shaft body, which is located between adjacent connecting shafts 34 to ensure that the adjacent connecting shafts 34 are integrated.

[0034] Specifically, the placement and installation process of the main body 2 of the steel strand: The operator first places the steel strand body 2 to be tested on the test platform 11. Specifically, the two ends of the steel strand body 2 are placed into the placement slots opened above the clamps 36 on both sides. Since the placement slots are fitted with rubber pads 37, not only can hard collisions between the steel strand body 2 and the clamps 36 be avoided, but the steel strand body 2 can also be initially limited to prevent it from shifting during placement. At the same time, the shaft teeth 39 on the inner wall of the clamps 36 are distributed in a form that is concentrated at the bottom and dispersed on the sides, and the end away from the clamps 36 is designed with rounded corners. When the steel strand body 2 is placed into the placement slots, the shaft teeth 39 will naturally align with the threaded gaps formed by the spiral twisting on the surface of the steel strand body 2, preparing for subsequent stable clamping. At this time, the data acquisition probe 12 is located at the center of the test platform 11, ready to collect the force data of the steel strand body 2.

[0035] The operating process of applying synchronous tension on both sides after the drive motor 31 starts: When the drive motor 31 is started, its output shaft drives the linkage shaft 32 to start rotating. Since the linkage shaft 32 is a double-sided threaded shaft, the thread grooves on its outer wall are symmetrically distributed with the acquisition and detection element 12 as the center, and the spiral directions of the symmetrical thread grooves are opposite. The threaded buckle 33 is threadedly connected to the thread groove of the linkage shaft 32 and forms a ball screw structure. This structure can accurately convert rotational motion into linear motion. As the linkage shaft 32 rotates, the threaded buckles 33 on both sides will move synchronously in opposite directions along the axial direction of the linkage shaft 32 under the action of the thread grooves. That is, the threaded buckles 33 on both sides move simultaneously away from the acquisition and detection element 12.

[0036] The upper part of the threaded buckle 33 is slidably connected to the limiting baffle 3301, and the limiting baffle 3301 is symmetrically fixed to the side wall of the acquisition and detection element 12. This design guides and restricts the movement direction of the threaded buckle 33, ensuring that the threaded buckle 33 can only move along the axial direction of the linkage shaft 32, avoiding deviation or rotation. The movement of the threaded buckle 33 will drive the connecting shaft 34 fixedly connected to it to move synchronously. The connecting shaft 34 is connected to the adjacent connecting shaft 34 through the connecting part 35, which is an elastic shaft at this time, to ensure the coordination and consistency of the movement of the two connecting shafts 34.

[0037] The end of the connecting shaft 34 away from the threaded thread 33 is fixedly connected to the clamp 36. Therefore, the clamp 36 will move outward synchronously with the movement of the connecting shaft 34. At this time, the shaft teeth 39 on the inner wall of the clamp 36 will penetrate into the threaded gap on the surface of the steel strand body 2. Due to the special distribution and rounded corner design of the shaft teeth 39, it can firmly hold the steel strand body 2 and prevent it from slipping during the force process, and will not damage the surface of the steel strand body 2. At the same time, the outer retaining shell 38 on the side wall of the clamp 36 can further prevent the steel strand body 2 from falling out of the clamp 36 during the stretching process.

[0038] Throughout the process, the acquisition probe 12 will collect the stress data of the steel strand body 2 under the action of equal tension on both sides in real time, including the magnitude of the tension and the degree of deformation, so as to provide accurate raw data for subsequent performance prediction and evaluation. Since the tension on both sides is applied synchronously and equally, the gauge section of the steel strand body 2 can be subjected to uniform force, and the fracture location is more likely to fall in the center of the gauge section, ensuring the accuracy and reliability of the test results.

[0039] The structural design in Example 1 is particularly suitable for scenarios where the accuracy of test data is critical, such as the factory quality acceptance of the steel strand body 2 and the material performance research of scientific research institutions. The main application is for the steel strand body 2 of conventional specifications with a diameter of 12.7 to 15.2 mm, and it is especially suitable for testing needs that require evaluation of key indicators such as fracture location and yield strength under symmetrical stress.

[0040] Example 2 Based on Example 1, please refer to Figure 7 - Figure 9 As shown, the linkage shaft 32 also includes a half-threaded shaft. The outer wall of the half-threaded shaft away from the drive motor 31 is a threaded surface, and the outer wall of the half-threaded shaft near the drive motor 31 is a smooth surface. The threaded surface of the half-threaded shaft is threadedly connected to the threaded thread 33, forming a ball screw structure. The connecting part 35 also includes a spring coil spring, which is located between adjacent connecting shafts 34 to ensure that the adjacent connecting shafts 34 are integrated.

[0041] Specifically, the placement and installation process of the main body 2 of the steel strand: The placement and installation process of the steel strand body 2 is exactly the same as that in Example 1. The operator places the two ends of the steel strand body 2 into the placement slots above the clamp buckles 36 on both sides. The rubber sleeve 37 provides initial buffering and limiting. At this time, the shaft teeth 39 on the inner wall of the clamp buckle 36 are aligned with the threaded gap on the surface of the steel strand body 2, preparing for stable clamping.

[0042] The operating process of applying unilateral tension after the drive motor 31 starts: When the drive motor 31 is started, its output shaft drives the linkage shaft 32 to start rotating. Since the linkage shaft 32 is a half-threaded shaft at this time, the side of its outer wall away from the drive motor 31 is a threaded surface, and it forms a ball screw structure with the threaded thread 33 on that side. The side closer to the drive motor 31 is a smooth surface with no thread design, and it forms a rotating connection with the threaded thread 33 on that side. Therefore, when the half-threaded shaft rotates, only the threaded thread 33 on the side away from the drive motor 31 will move linearly away from the acquisition and detection element 12 along the axial direction of the linkage shaft 32 under the action of the thread groove. The threaded thread 33 on the side closer to the drive motor 31 is located on the smooth surface and does not have threaded transmission with the threaded thread 33, and remains fixed, thus forming the "fixed end" in the test.

[0043] When the threaded buckle 33 on the side away from the drive motor 31 moves, it will drive the connecting shaft 34 fixedly connected to it to move synchronously. The connecting shaft 34 is connected to the adjacent connecting shaft 34 in an integrated manner through the connecting piece 35, which is a spring coil spring at this time. It is worth noting that the thickness of the spring coil spring gradually increases between the connecting shaft 34 at both the moving end and the fixed end. This design can provide gradual elastic support during the application of tension, effectively buffer the impact of tension on the equipment, and at the same time ensure the coordination of the two connecting shafts 34 during the movement.

[0044] As the connecting shaft 34 moves, the clamp 36 fixed to it moves outward in sync. The shaft teeth 39 on its inner wall penetrate into the threaded gap of the steel strand body 2, achieving a stable clamping and pulling the steel strand body 2 towards the moving end side. Meanwhile, the clamp 36 on the side closer to the drive motor 31 remains stationary, thereby applying a tensile force to one side of the steel strand body 2 for testing. During this process, the acquisition probe 12 collects the force data of the steel strand body 2 in real time, providing a basis for performance evaluation.

[0045] The structural design in Example 2 is more suitable for simulation testing of special working conditions, such as the unilateral force and asymmetric load scenarios that the main body 2 of the steel strand may face in actual service. It is applicable to large-tonnage steel strands (such as those with a diameter ≥18mm), special structure steel strand main bodies 2 (such as multi-strand stranding and special surface treatment processes), or test requirements that need to simulate unilateral tensile and fatigue loads, and can more accurately reproduce the actual stress state.

[0046] 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 performance prediction and evaluation system and acquisition components based on galvanized steel strand equipment, used for performance testing of the steel strand body (2), including a test body (1), a test platform (11) mounted on top of the test body (1), and an acquisition detection component (12) mounted on top of the test platform (11), characterized in that: The main body of the steel strand (2) is a wire made of multiple steel wires twisted in a spiral manner. The longitudinal axis of the outer steel wires is arranged in a spiral shape, thereby forming a thread-like gap on the surface of the main body of the steel strand (2). The acquisition and detection element (12) is located at the center of the test platform (11). A test auxiliary mechanism (3) is provided above the test body (1). The test auxiliary mechanism (3) and the acquisition probe (12) cooperate to collect and evaluate the overall force data of the steel strand body (2). The test auxiliary mechanism (3) includes a linkage shaft (32). The linkage shaft (32) can change the direction of the tension on the steel strand body (2) according to different test states of the steel strand body (2).

2. The performance prediction and evaluation system and data acquisition component based on galvanized steel strand equipment according to claim 1, characterized in that: The test auxiliary mechanism (3) includes a drive motor (31) installed on the side of the test body (1), the linkage shaft (32) is assembled on the output shaft end of the drive motor (31), and the linkage shaft (32) passes through the bottom of the acquisition probe (12) laterally and is rotatably connected to it.

3. The performance prediction and evaluation system and data acquisition component based on galvanized steel strand equipment according to claim 2, characterized in that: The outer wall of the linkage shaft (32) is symmetrically equipped with several threaded buckles (33), and a limiting baffle (3301) is slidably connected above the threaded buckle (33), and the limiting baffle (3301) is symmetrically fixedly connected to the side wall of the acquisition and detection component (12).

4. The performance prediction and evaluation system and data acquisition component based on galvanized steel strand equipment according to claim 3, characterized in that: Each of the side walls of the limiting baffles (3301) is fixedly connected to a connecting shaft (34), and the outer wall of the connecting shaft (34) is fitted with a connecting piece (35).

5. The performance prediction and evaluation system and data acquisition component based on galvanized steel strand equipment according to claim 4, characterized in that: The end of the connecting shaft (34) away from the threaded thread (33) is fixedly connected to a clamp buckle (36). The clamp buckle (36) is provided with a placement slot on the top, and a rubber sleeve (37) is fitted on the outside of the placement slot. The side wall of the clamp buckle (36) is symmetrically fixedly connected to an outer cover (38), and the inner wall of the clamp buckle (36) is fixedly connected to several shaft teeth (39).

6. The performance prediction and evaluation system and data acquisition component based on galvanized steel strand equipment according to claim 5, characterized in that: The ends of several of the shaft teeth (39) away from the clamp buckle (36) are all rounded, and the several shaft teeth (39) are distributed in a form that is concentrated at the bottom and dispersed on the sides.

7. The performance prediction and evaluation system and data acquisition component based on galvanized steel strand equipment according to claim 1, characterized in that: The linkage shaft (32) includes a double-sided threaded shaft. The threaded grooves on the outer wall of the double-sided threaded shaft are symmetrically distributed with the position of the acquisition probe (12) as the center, and the spiral directions of the symmetrically distributed threaded grooves are opposite. The linkage shaft (32) is threadedly connected to the threaded thread (33) through the threaded grooves on the outer wall, and forms a ball screw structure.

8. The performance prediction and evaluation system and data acquisition component based on galvanized steel strand equipment according to claim 4, characterized in that: The connecting component (35) includes an elastic shaft body, which is located between adjacent connecting shafts (34) to ensure that the adjacent connecting shafts (34) are integrated.

9. The performance prediction and evaluation system and data acquisition component based on galvanized steel strand equipment according to claim 1, characterized in that: The linkage shaft (32) also includes a half-threaded shaft. The outer wall of the half-threaded shaft away from the drive motor (31) is a threaded surface, and the outer wall of the half-threaded shaft near the drive motor (31) is a smooth surface. The threaded surface of the half-threaded shaft is threadedly connected to the threaded thread (33) and forms a ball screw structure.

10. The performance prediction and evaluation system and data acquisition component based on galvanized steel strand equipment according to claim 4, characterized in that: The connecting component (35) also includes an elastic coil spring, which is located between adjacent connecting shafts (34) to ensure that the adjacent connecting shafts (34) are integrated.