Tension detection device and detection method applied to high-speed rail constant-tension wire barrow

Abstract

The invention relates to the technical field of tension measurement, in particular to a tension detection device and method applied to a high-speed rail constant-tension wire barrow, the tension detection device comprises a bottom plate, a telescopic motor, a fixing mechanism and a measuring mechanism, the telescopic motor, the fixing mechanism and the measuring mechanism are sequentially mounted on the bottom plate from back to front in the x-axis direction, and the measuring mechanism comprises a mounting plate, a rolling assembly and a tension measuring assembly. The tension measuring assembly comprises a mounting base, a tension measuring wheel, a tension sensor, a mounting support and a tensioning wheel; a cable is arranged on the bottom plate, a rope penetrating gap for the cable to penetrate through is formed between the bottom face of the tensioning wheel and the top face of the tension measuring wheel, one end of the cable is installed on the bottom plate through the end installation assembly, and the other end of the cable penetrates through the rope penetrating gap and is fixedly arranged on the fixing mechanism. Automation and reliability of tension measurement are achieved, the cable moves to drive the tensioning wheel and the tension measurement wheel to rotate and penetrate through the rope penetrating gap, the straightness of a cable section during tension detection is guaranteed, measurement errors caused by bending are eliminated, and the detection stability and accuracy are improved.

Description

Technical Field

[0001] This invention relates to the field of tension measurement technology, specifically to a tension detection device and method for use in high-speed railway constant tension cable laying vehicles. Background Technology

[0002] In the field of cable tension measurement, accurate and reliable tension detection is crucial for the safety and performance control of high-speed railway cable laying operations.

[0003] Existing tension detection methods mostly rely on manual operation or simple mechanical devices, such as handheld tension meters, indirect calculations using lever principles, or point detection using fixed sensors. These methods have significant drawbacks: First, the measurement process depends on human experience and operational stability, resulting in poor repeatability and susceptibility to subjective errors. Second, the cable often needs to be paused or in a non-natural tensioned state during measurement, making it difficult to reflect tension changes under actual working conditions. Third, existing devices, due to structural limitations, can cause localized bending, twisting, or compression of the cable during guidance and fixation, generating additional stress and affecting measurement accuracy. Fourth, some contact-type measuring tools experience significant friction with the cable surface, which can damage the cable sheath or internal structure with prolonged use, affecting its service life and safety performance. Summary of the Invention

[0004] In view of the problems of low measurement accuracy, insufficient stability, and impact on cable life of existing technologies, the present invention provides a tension detection device and method for high-speed rail constant tension cable laying vehicle. By threading the cable through the rope gap, the movement of the cable can drive the tension wheel and tension measuring wheel to rotate. The setting of the rope gap also ensures the straightness of the cable section during tension detection, further eliminating measurement errors caused by bending, and significantly improving the detection stability and accuracy of the tension sensor.

[0005] This invention provides a tension detection device for a high-speed railway constant tension cable laying vehicle, comprising a base plate, a telescopic motor, a fixing mechanism, and a measuring mechanism sequentially mounted on the base plate from back to front along the x-axis. The measuring mechanism includes a mounting plate mounted on the base plate, a rolling assembly mounted on the mounting plate, and a tension measuring assembly.

[0006] The tension measuring assembly includes: a mounting base mounted on the mounting plate, a tension measuring wheel mounted on the mounting base, a tension sensor coaxially mounted with the tension measuring wheel, mounting supports inclined upward along the x-axis at both ends of the mounting base, and a tensioning wheel disposed on the mounting supports.

[0007] A cable is provided on the base plate, and a rope-threading gap is provided between the bottom surface of the tensioning wheel and the top surface of the tension measuring wheel for the cable to pass through. One end of the cable is installed on the base plate through an end mounting assembly, and the other end passes through the rope-threading gap and is fixed to the fixing mechanism.

[0008] Furthermore, the mounting bracket is tilted upward at 45 degrees. When the cable passes through the rope-threading gap, the upper end face of the cable is in contact with the bottom surface of the tensioning wheel, and the lower end face of the cable is in contact with the bottom surface of the tensioning wheel.

[0009] Furthermore, the fixing mechanism includes: a slide rail mounted on the base plate, a slider slidably mounted with the slide rail, a fixing seat fixedly mounted with the slider, and a fixing component mounted on the fixing seat, wherein the fixing seat is fixedly mounted with the telescopic end of the telescopic motor; Furthermore, the fixing assembly includes: a locking block, a first lifting ring, a second lifting ring, a connecting block, and a fixing clamp, which are installed sequentially along the x-axis from back to front on the fixing base, and the end of the cable is fixed by the fixing clamp.

[0010] Furthermore, the connecting block is equipped with a tension sensor for measuring tensile force.

[0011] Furthermore, the first lifting ring is threadedly installed with the locking block, the second lifting ring is threadedly installed with the connecting block, and the first lifting ring and the second lifting ring are connected by a ring-shaped locking buckle.

[0012] Furthermore, the locking block is provided with a plurality of locking holes, and the set screw is used to fix and lock the first lifting ring through the locking holes.

[0013] Furthermore, the end mounting assembly includes: a mounting bracket mounted to the front end of the base plate, a first fixing member and a second fixing member mounted on the mounting bracket, a wire fixing channel being provided between the first fixing member and the second fixing member, and the cable end being fixedly mounted in the wire fixing channel.

[0014] Furthermore, the rolling assembly includes a plurality of rolling rollers symmetrically mounted at both ends of the mounting plate via a connecting plate, wherein the rolling rollers rotate with the movement of the cable when the cable is tensioned.

[0015] This invention also provides a detection method for a tension detection device applied to a high-speed railway constant tension cable laying vehicle, comprising the following: One end of the cable to be tested is fixed by the end mounting component, and the other end is passed through the rope threading gap and fixed to the fixing mechanism.

[0016] When it is necessary to measure cable tension: Start the telescopic motor, so that the telescopic end of the telescopic motor retracts, driving the fixed component to move to the rear end, so that the cable is stretched from a relaxed state to a taut state. During this process, the cable slides in the rope gap, driving the tension measuring wheel to rotate, so that the tension sensor measures the cable tension value in real time.

[0017] When it is time to end the cable tension measurement, the telescopic end of the telescopic motor is extended, which moves the fixing component to the front end, so that the cable is stretched from a taut state to a relaxed state. At this time, the cable is removed by disassembling the fixing mechanism and the end mounting component, and the cable tension measurement ends.

[0018] Compared with the prior art, the beneficial effects of the present invention are: This invention patent integrates a fixing mechanism and a measuring mechanism to achieve automated and highly reliable tension measurement. Specifically, when the telescopic motor controls the fixing mechanism to move rearward, the pulled cable changes from a relaxed state to a tensioned state. During the cable's movement, the rolling component, tension wheel, and tension measuring wheel all rotate. The tension of the cable under tension is measured by a tension sensor. This patent utilizes a cable threaded through a gap, allowing the cable's movement to drive the rotation of the tension wheel and tension measuring wheel. The gap also ensures the straightness of the cable segment during tension detection, further eliminating measurement errors caused by bending and significantly improving the stability and accuracy of the tension sensor. Furthermore, the full-process rolling contact and flexible tensioning method minimize wear on the cable surface, effectively protecting the cable's structural integrity while achieving high-precision measurement.

[0019] It should be understood that the description in the Summary of the Invention is not intended to limit the key or essential features of the embodiments of the present invention, nor is it intended to restrict the scope of the invention. Other features of the invention will become readily apparent from the following description. Attached Figure Description

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. Figure 1 This is a structural diagram of the tension detection device used in a constant tension wire laying vehicle for high-speed railways.

[0021] Figure 2 This is a first-person view of the structure of a tension detection device used in a constant tension wire laying vehicle for high-speed railways.

[0022] Figure 3 This is a structural diagram of the tension fixing component.

[0023] Figure 4 This is a structural diagram of the measuring mechanism.

[0024] Figure 5 This is a structural diagram of the tension measurement component.

[0025] Figure 6 This is a second-view structural diagram of the tension detection device used in a constant tension wire laying vehicle for high-speed railways.

[0026] The diagram shows: 1. Base plate; 2. Telescopic motor; 3. Fixing mechanism; 31. Slide rail; 32. Slider; 33. Fixing base; 34. Fixing assembly; 341. Locking block; 342. First lifting ring; 343. Second lifting ring; 344. Connecting block; 345. Fixing clamp; 346. Tension sensor; 347. Ring lock; 348. Locking hole; 4. Measuring mechanism; 41. Mounting plate; 42. Rolling assembly; 421. Connecting plate; 422. Rolling roller; 43. Tension measuring assembly; 431. Mounting base; 432. Tension measuring wheel; 433. Tension sensor; 434. Mounting support; 435. Tensioning wheel; 5. Cable; 6. Cable threading gap; 7. End mounting assembly; 71. Mounting bracket; 72. First fastener; 73. Second fastener; 74. Cable fixing channel. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention, and therefore only show the components relevant to the invention.

[0028] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly set on the other component; when a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to the other component.

[0029] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0030] refer to Figure 1 As shown, one end of the telescopic motor 2 is set as the rear end.

[0031] Please refer to Figures 1-6The present invention provides a tension detection device for a high-speed railway constant tension cable laying vehicle, including a base plate 1, a telescopic motor 2, a fixing mechanism 3 and a measuring mechanism 4 installed sequentially from back to front along the x-axis direction on the base plate 1. The measuring mechanism 4 includes: a mounting plate 41 installed on the base plate 1, a rolling assembly 42 installed on the mounting plate 41 and a tension measuring assembly 43.

[0032] The tension measuring assembly 43 includes: a mounting base 431 mounted on a mounting plate 41, a tension measuring wheel 432 mounted on the mounting base 431, a tension sensor 433 coaxially mounted with the tension measuring wheel 432, mounting supports 434 inclined upward along the x-axis at both ends of the mounting base 431, and a tensioning wheel 435 disposed on the mounting supports 434.

[0033] A cable 5 is provided on the base plate 1. A rope-threading gap 6 is provided between the bottom surface of the tension wheel 435 and the top surface of the tension measuring wheel 432 for the cable 5 to pass through. One end of the cable 5 is installed on the base plate 1 through the end mounting component 7, and the other end passes through the rope-threading gap 6 and is fixed on the fixing mechanism 3.

[0034] This embodiment integrates the fixing mechanism 3 and the measuring mechanism 4 to achieve automated and highly reliable tension measurement. Specifically, when the telescopic motor 2 controls the fixing mechanism 3 to move rearward, the cable 5 is pulled from a relaxed state to a tensioned state. During the movement of the cable 5, the rolling component 42, the tensioning wheel 435, and the tension measuring wheel 432 all rotate. The tension of the cable 5 when it is tensioned is measured by the tension sensor 433. This patent uses the cable 5 to pass through the rope gap 6, so that the movement of the cable 5 can drive the tensioning wheel 435 and the tension measuring wheel 432 to rotate. The rope gap 6 also ensures the straightness of the cable 5 segment during tension detection, further eliminating measurement errors caused by bending, and significantly improving the detection stability and accuracy of the tension sensor 433. In addition, the full rolling contact and flexible tensioning method minimizes wear on the surface of the cable 5, effectively protecting the structural integrity of the cable 5 while achieving high-precision measurement.

[0035] In this embodiment, the telescopic motor 2 is started, driving the telescopic end to perform the retraction stroke, and driving the fixing mechanism 3 to move to the rear end, thereby pulling the cable 5 to generate tension. Under the action of the tension force, the tension wheel 435 and the tension measuring wheel 432 rotate. The tension sensor 433 integrated on the shaft end of the tension measuring wheel 432 collects the torque signal generated by the rotation of the tension measuring wheel 432 in real time, and converts it into a precise tension value in a synchronous manner, so as to realize the closed-loop measurement and feedback of tension during the tensioning process.

[0036] like Figure 5As shown, the mounting bracket 434 is tilted upward at 45 degrees. When the cable 5 is threaded through the rope-threading gap 6, the upper end face of the cable 5 is in contact with the bottom surface of the tensioning wheel 435, and the lower end face of the cable 5 is in contact with the bottom surface of the tensioning wheel 435.

[0037] In this embodiment, the 45-degree upward tilt of the mounting bracket 434 provides a natural guiding angle for the cable 5. When the cable 5 is inserted, its upper and lower end faces are in close contact with the ground of the tension wheel 435 and the top face of the tension measuring wheel 432, respectively, forming a bidirectional constraint. This ensures that the cable 5 is always firmly confined in the center of the rope-threading gap 6 during passage, effectively preventing lateral swaying or detachment. This significantly improves the accuracy and stability of cable 5 guidance, reduces wear caused by shaking, and further makes it suitable for dynamic tensioning or high-frequency reciprocating motion conditions, significantly enhancing system reliability and service life.

[0038] Furthermore, by using precise supports and mounting base 431 to limit the angle, the system ensures the accurate alignment of the rope threading gap 6 between the tension measuring wheel 432 and the tensioning wheel 435. This allows the cable 5 to always remain straight and stably slide through the rope threading gap 6 across the surface of the measuring wheel, effectively eliminating measurement interference caused by cable 5 shaking or skewing. This improves the consistency of the response and measurement accuracy of the tension sensor 433, making the data more reliable and further expanding the application scenarios. It can be applied to high-precision, continuously operating cable tension detection scenarios.

[0039] like Figure 2 As shown, the fixing mechanism 3 includes: a slide rail 31 mounted on the base plate 1, a slider 32 slidably mounted with the slide rail 31, a fixing seat 33 fixedly mounted with the slider 32, and a fixing component 34 mounted on the fixing seat 33. The fixing seat 33 is fixedly mounted to the telescopic end of the telescopic motor 2.

[0040] In this embodiment, when the telescopic motor 2 is started, the telescopic movement of the telescopic end drives the fixed base 33 to move accordingly, which in turn drives the slider 32, which is fixedly installed with the fixed base 33, to slide on the guide rail 31. This enables the control fixed component 34 to achieve translational movement without lateral offset, and controls the cable 5 fixed on the component to stretch at a constant speed under controlled tension, thereby improving the smoothness of movement and positioning accuracy, and ensuring the accuracy and reliability of force and displacement transmission.

[0041] like Figure 3 As shown, the fixing assembly 34 includes: a locking block 341, a first lifting ring 342, a second lifting ring 343, a connecting block 344, and a fixing clamp 345, which are installed sequentially along the x-axis from back to front on the fixing base 33. The end of the cable 5 is fixed by the fixing clamp 345. A tension sensor 346 for measuring tension is provided on the connecting block 344.

[0042] To further explain, the first lifting ring 342 is threadedly installed with the locking block 341, the second lifting ring 343 is threadedly installed with the connecting block 344, and the first lifting ring 342 and the second lifting ring 343 are connected by an annular latch 347.

[0043] Furthermore, the locking block 341 is provided with several locking holes 348, and the set screw is used to fix and lock the first lifting ring 342 through the locking holes 348.

[0044] In this embodiment, one end of the cable 5 is fixedly clamped in the fixing clamp 345. The locking block 341 is hollow and has a first thread. The end of the first lifting ring 342 is integrally formed with a first screw that mates with the first thread. By inserting the first screw into the hollow inside the locking block 341 and screwing it tightly into the first thread, and then by screwing the set screw into the locking block 341 along the y-axis direction through the locking hole 348, the first screw in the locking block 341 is locked and limited, effectively preventing it from rotating and loosening under vibration or load. This significantly improves the stability and integrity of the installation. It not only ensures the stable installation of the first lifting ring 342 and the locking block 341, but also enhances the overall tensile and torsional resistance of the structure, ensuring a reliable connection under dynamic working conditions and improving the safety and stability of long-term use.

[0045] The connecting block 344 has a hollow cavity inside, and the inner wall of the hollow cavity has a second thread. The end of the second lifting ring 343 is integrally formed with a second screw that mates with the second thread. By screwing the second screw into the second thread, a seamless, rigid and stable installation of the second lifting ring 343 and the connecting block 344 is achieved. This not only ensures the efficient transmission of axial load, but also provides excellent tensile and shear resistance through the tight threaded connection, thereby improving the overall load-bearing reliability and durability.

[0046] Furthermore, the fixing clamp 345 includes two fixing blocks symmetrically arranged vertically along the y-axis and a clamping space between the two fixing blocks. The two fixing blocks are fixedly installed by several first bolts. The end of the cable 5 is fixed in the clamping space. When the cable 5 needs to be removed, the cable 5 clamped in the clamping space can be taken out by loosening the several first bolts. The fixing clamp 345 not only ensures the fixation of the end of the cable 5 and provides strong support for the tensioning of the cable 5, but also facilitates the installation, maintenance or replacement of the cable 5, achieving a balance between firm fixation and convenient maintenance.

[0047] Furthermore, the fixing component 34 is detachable. By unscrewing the first thread and the first screw, the first lifting ring 342 can be removed from the locking block 341. Then, by unscrewing the second thread and the second screw, the second lifting ring 343 can be removed from the connecting block 344. The annular latch 347 has an openable and closable buckle. By opening the buckle, the first lifting ring 342 and the second lifting ring 343 can be separated for replacement or cleaning and maintenance. This reduces the difficulty and time cost of daily cleaning, replacement, or targeted maintenance. The modular design also improves the replaceability of components, extends the overall service life, and allows for flexible adjustment of the lifting ring configuration according to the usage scenario, enhancing the maintenance convenience and usage flexibility of the fixing component 34. To further explain, when the telescopic motor 2 drives the fixed base 33 to slide backward on the slide rail 31, the cable 5 is fixed by the fixing component 34 and then becomes tensioned. At this time, the first lifting ring 342 and the second lifting ring 343 change from a relaxed state to a state of linear tension through the ring buckle 347, and the fixing clamp 345 provides strong support for the tension of the cable 5. When the telescopic motor 2 drives the fixed base 33 to slide towards the rear end along the linear slide rail 31, the cable 5 constrained by the fixing component 34 rapidly changes from an initial free state to a controlled tensioned state. During this process, the tension of the cable 5 increases gradually, and the connection between the first lifting ring 342 and the second lifting ring 343 through the annular locking buckle 347 is simultaneously straightened from a relaxed state to a taut straight state, forming a stable rigid linkage structure. The annular locking buckle 347 allows the two lifting rings to rotate adaptively, effectively releasing the internal stress generated during the tensioning process. The setting of the fixing component 34 eliminates the redundancy of the cable 5, enhances the rationality of the force transmission path and improves the structural rigidity, effectively ensuring motion synchronization and load stability.

[0048] like Figure 6 As shown, the end mounting assembly 7 includes: a mounting bracket 71 mounted to the front end of the base plate 1, a first fixing member 72 and a second fixing member 73 mounted on the mounting bracket 71, a wire fixing channel 74 sandwiched between the first fixing member 72 and the second fixing member 73, and the end of the cable 5 is fixedly installed in the wire fixing channel 74.

[0049] In this embodiment, the other end of the cable 5 is fixedly clamped within a fixed channel, effectively resisting external pulling and shaking, and preventing connection failure due to loosening or detachment. When the cable 5 is in a tensioned state, the first fixing member 72 and the second fixing member 73 provide sufficient support for the end of the cable 5, which not only significantly improves the mechanical stability of the cable 5 at the equipment interface, but also facilitates centralized cable routing, reduces stress concentration, thereby protecting the structure of the cable 5, extending its service life, and enhancing the overall reliability and safety.

[0050] The first fixing member 72 and the second fixing member 73 are fixedly installed by the second bolt. When it is necessary to remove the end of the cable 5, the second bolt is loosened by screwing, so that the end of the cable 5 can be taken out from the cable fixing channel 74. The end mounting component 7 and the fixing clamp 345 cooperate to provide stable support for the tensioning of the cable 5.

[0051] like Figure 4 As shown, the rolling assembly 42 includes a plurality of rolling rollers 422 symmetrically mounted on both ends of the mounting plate 41 via a connecting plate 421. When the cable 5 is tensioned, the rolling rollers 422 rotate with the cable 5.

[0052] In this embodiment, one end of the cable 5 is fixed by the end mounting assembly 7, and the other end passes through the gap between two adjacent rolling rollers 422 along the y-axis into the rope threading gap 6, and is finally fixed in the fixing assembly 34. When the telescopic motor 2 drives the fixing assembly 34 to reciprocate, the cable 5 is pulled accordingly, achieving tensioning or relaxation. During this process, the cable 5 moves smoothly within the rope threading gap 6, driving the tension measuring wheel 432 in contact with it to rotate. Thus, the tension of the cable 5 is monitored in real time by the integrated tension sensor 433, and the friction loss when the cable 5 slides is significantly reduced by relying on the low resistance rotation characteristics of the rolling rollers 422. This ensures the smoothness and stability of the transmission process and improves the system response efficiency and overall reliability.

[0053] like Figures 1-6 As shown, the present invention also provides a detection method for a tension detection device applied to a high-speed railway constant tension cable laying vehicle, comprising the following: one end of the cable to be tested 5 is fixedly set by the end mounting component 7, and the other end passes through the rope threading gap 6 and is fixed on the fixing mechanism 3.

[0054] When it is necessary to measure the tension of cable 5: Start the telescopic motor 2, so that the telescopic end of the telescopic motor 2 retracts, driving the fixed component 34 to move to the rear end, so that the cable 5 is stretched from the relaxed state to the taut state. During this process, the cable 5 slides in the rope gap 6, driving the tension measuring wheel 432 to rotate, so that the tension sensor 433 installed on the coaxial axis measures the tension value of the cable 5 in real time.

[0055] When it is necessary to end the tension measurement of cable 5, the telescopic end of the telescopic motor 2 is extended, which drives the fixing component 34 to move to the front end, so that the cable 5 is stretched from the tensioned state to the relaxed state. At this time, the cable 5 is removed by disassembling the fixing mechanism 3 and the end mounting component 7, and the tension measurement of cable 5 ends.

[0056] In this embodiment, the detection method of the tension detection device applied to the constant tension wire laying car of high-speed rail is as follows: One end of the cable to be tested 5 is fixed by the end mounting component 7, and the other end is passed through the rope threading gap 6 and fixed on the fixing clamp 345. At this time, the cable 5 is in a relaxed state, and the fixing of the cable to be tested 5 is completed, which lays the foundation for the standing measurement of the cable 5.

[0057] Start the telescopic motor 2, control the telescopic end of the motor 2 to retract, and the fixed base 33, which is fixedly installed at the telescopic end, moves to the rear end, driving the slider 32 to slide to the rear end on the slide rail 31, providing stable support for the fixed base 33. The fixing component 34 moves to the rear end accordingly. At this time, the first lifting ring 342 and the second lifting ring 343 are stretched and then straightened through the ring lock 347, so that the cable 5, whose end is fixed to the fixing component 34, gradually changes from a relaxed state to a tensile state. During this process, the cable 5 slides in the rope gap 6. Through the tensioning and guiding of the tensioning wheel 435, the cable segment is straight and close to the upper end face of the tension measuring wheel 432. When the cable 5 is stretched and slides, it drives the tension measuring wheel 432 to rotate synchronously. The tension sensor 433, which is coaxially installed with the tension measuring wheel 432, can measure the real-time tension of the cable 5 through the real-time rotation of the tension measuring wheel 432.

[0058] When it is time to end the tension measurement of cable 5, the telescopic end of the telescopic motor 2 is extended, which drives the fixed seat 33 to move forward. This causes the slider 32 to slide forward on the slide rail 31, and the fixed component 34 moves forward. At this time, the first lifting ring 342 and the second lifting ring 343 change from a stretched and straight state to a relaxed state, which further changes the cable 5 from a tensioned state to a relaxed state. The cable 5 can then be removed from the end mounting component 7 and the fixing clamp 345, thus completing the tension measurement of cable 5.

[0059] It should be understood that the specific embodiments described above are for illustrative purposes only and are not intended to limit the scope of the invention. Obvious variations or modifications derived from the spirit of the invention are still within the protection scope of the invention.

Claims

1. A tension detection device applied to a constant tension wire-laying car for high-speed railways, characterized in that, It includes a base plate (1), a telescopic motor (2), a fixing mechanism (3), and a measuring mechanism (4) installed sequentially from back to front along the x-axis on the base plate (1). The measuring mechanism (4) includes: a mounting plate (41) installed on the base plate (1), a rolling assembly (42) installed on the mounting plate (41), and a tension measuring assembly (43). The tension measuring assembly (43) includes: a mounting base (431) mounted on the mounting plate (41), a tension measuring wheel (432) mounted on the mounting base (431), a tension sensor (433) coaxially mounted with the tension measuring wheel (432), mounting supports (434) mounted at both ends of the mounting base (431) at an upward angle along the x-axis, and a tensioning wheel (435) disposed on the mounting supports (434); A cable (5) is provided on the base plate (1). A rope threading gap (6) is provided between the bottom surface of the tension wheel (435) and the top surface of the tension measuring wheel (432) for the cable (5) to pass through. One end of the cable (5) is installed on the base plate (1) through the end mounting assembly (7), and the other end passes through the rope threading gap (6) and is fixed on the fixing mechanism (3).

2. The tension detection device applied to a constant tension wire laying car for high-speed railway according to claim 1, characterized in that, The mounting bracket (434) is tilted upward at 45 degrees. When the cable (5) is threaded through the rope gap (6), the upper end face of the cable (5) is in contact with the bottom surface of the tension wheel (435), and the lower end face of the cable (5) is in contact with the bottom surface of the tension wheel (435).

3. The tension detection device applied to a constant tension wire laying car for high-speed railway according to claim 1, characterized in that, The fixing mechanism (3) includes: a slide rail (31) installed on the base plate (1), a slider (32) slidably installed with the slide rail (31), a fixing seat (33) fixedly installed with the slider (32), and a fixing component (34) installed on the fixing seat (33). The fixing seat (33) is fixedly installed with the telescopic end of the telescopic motor (2).

4. The tension detection device applied to a constant tension wire laying vehicle for high-speed railway according to claim 3, characterized in that, The fixing component (34) includes: a locking block (341), a first lifting ring (342), a second lifting ring (343), a connecting block (344), and a fixing clamp (345) installed sequentially from back to front along the x-axis on the fixing base (33), and the end of the cable (5) is fixed by the fixing clamp (345).

5. The tension detection device applied to a constant tension wire laying vehicle for high-speed railway according to claim 4, characterized in that, The connecting block (344) is equipped with a tension sensor (346) for measuring tension.

6. The tension detection device applied to a high-speed railway constant tension wire laying vehicle according to claim 4, characterized in that, The first lifting ring (342) is threadedly installed with the locking block (341), and the second lifting ring (343) is threadedly installed with the connecting block (344). The first lifting ring (342) and the second lifting ring (343) are connected by a ring lock (347).

7. The tension detection device applied to a constant tension wire laying vehicle for high-speed railway according to claim 4, characterized in that, The locking block (341) is provided with a plurality of locking holes (348), and the set screw is used to fix and lock the first lifting ring (342) through the locking holes (348).

8. The tension detection device applied to a constant tension wire laying car for high-speed railway according to claim 1, characterized in that, The end mounting assembly (7) includes: a mounting bracket (71) mounted to the front end of the base plate (1), a first fixing member (72) and a second fixing member (73) mounted on the mounting bracket (71), a wire fixing channel (74) is provided between the first fixing member (72) and the second fixing member (73), and the end of the cable (5) is fixedly installed in the wire fixing channel (74).

9. The tension detection device applied to a high-speed railway constant tension wire laying vehicle according to claim 1, characterized in that, The rolling assembly (42) includes a plurality of rolling rollers (422) symmetrically mounted on both ends of the mounting plate (41) via a connecting plate (421). When the cable (5) is tensioned, the rolling rollers (422) rotate with the cable (5).

10. The detection method of the tension detection device applied to a high-speed railway constant tension wire laying car according to claim 1, characterized in that, Includes the following: One end of the cable to be tested (5) is fixed by the end mounting assembly (7), and the other end is passed through the rope threading gap (6) and fixed on the fixing mechanism (3); When it is necessary to measure the tension of cable (5): Start the telescopic motor (2) so that the telescopic end of the telescopic motor (2) retracts and drives the fixed component (34) to move to the rear end, so that the cable (5) is stretched from the relaxed state to the tensile state. During this process, the cable (5) slides in the rope gap (6), which drives the tension measuring wheel (432) to rotate, so that the tension sensor (433) measures the tension value of the cable (5) in real time. When the cable (5) tension measurement needs to be ended, the telescopic end of the telescopic motor (2) is extended, which drives the fixing component (34) to move to the front end, so that the cable (5) is stretched from the tensioned state to the relaxed state. At this time, the cable (5) is removed by disassembling the fixing mechanism (3) and the end mounting component (7), and the cable (5) tension measurement is ended.

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