Power transmission line guyed tower stay wire tension detection and analysis device and method

Abstract

The invention discloses a power transmission line guyed tower stay wire tension detection and analysis device and method.The device comprises a detector and a data analysis system, the detector comprises a detector shell, a steel cable clamping mechanism and a cooperative displacement mechanism, the steel cable clamping mechanism comprises a base body, a pressing block and a pressing block driving part, the base body is fixed to the inner wall of the detector shell, and the pressing block driving part is fixed to the detector shell; the upper horizontal section is provided with a pressure sensor; the pressing block slides on the vertical section and is matched with the pressure sensor to clamp the steel cable; the cooperative displacement mechanism comprises two sliding rails, two sliding blocks and two force bearing blocks, the two sliding rails are arranged on the two sides of the detector shell respectively, and the sliding blocks slide on the sliding rails and are synchronously connected through a connecting rod; the force bearing blocks are fixed on the sliding block, and the sliding block is driven to enable the force bearing blocks to move synchronously, so that the angles between the two force bearing blocks and the pressure sensor are changed, tension values of the steel cable at different angles are measured, errors of measured data are reduced, and the tension of the steel cable is evaluated more accurately.

Description

Technical Field

[0001] The invention relates to the technical field of guy tower maintenance, and in particular to a device and method for detecting and analyzing guy wire tension of a guy tower for a power transmission line. Background Art

[0002] The wire tension tester is a tester with tensioning force that can directly measure the tension of wire ropes without disassembly. It is suitable for the power industry, tunnel construction, fishing, major scientific research institutes and teaching institutions, testing institutions, and occasions involving the tension of wire ropes, cables, and steel strands.

[0003] In actual use, the existing wire rope tension tester has two load-bearing blocks of which the positions are fixed and the angle between the load-bearing blocks and the pressure sensor is fixed. Therefore, when measuring the wire rope tension value, the wire rope tension value at this angle can only be measured at a fixed angle. This results in maintenance personnel only being able to judge the wire rope tension through the tension data measured at this fixed angle, which can easily lead to large errors in the judgment of the wire rope tension and affect the accuracy of the judgment of the wire rope tension. Summary of the invention

[0004] The object of the present invention is to provide a transmission line cable tower tension detection and analysis device and method, which can reduce the error of measured cable tension data and improve the accuracy of cable tension judgment.

[0005] The technical solution of the present invention is:

[0006] A tension detection and analysis device for guy wires of a transmission line tower, comprising a detector and a data analysis system. The detector is used to detect the tension of the steel cable at different angles, and the data analysis system is used to receive, analyze and compare the detected data. After each measurement by the detector, the data analysis system calculates the average value of the detected data and compares the average value with the design value to determine whether the tension of the steel cable is qualified. The detector includes: a detector housing, which is a housing without a bottom surface; a steel cable clamping mechanism, including: a base, which is a U-shaped plate body, fixed on the inner wall of the detector housing through auxiliary parts, with a through hole opened on the upper horizontal section, and a pressure sensor is arranged in the through hole. The pressure sensor is connected and communicates with the data analysis system; a pressing block, which slides on the vertical section of the base, and the pressing block is located directly below the pressure sensor; a pressing block driving member, which is arranged on the lower horizontal section of the base and is used to drive the pressing block to move on the base so that the steel cable is clamped between the pressing block and the pressure sensor; a cooperative displacement mechanism, including: two slide rails, which are respectively arranged on both sides of the detector housing, and both slide rails are arranged along the height direction of the detector housing; two sliders, which respectively slide on the two slide rails, and the two sliders are connected and synchronized through a connecting rod; two bearing blocks, which are respectively fixed on the two sliders, and drive the sliders to synchronously displace, so as to change the angle between the two bearing blocks and the pressure sensor, and measure the tension values of the steel cable at multiple different angles.

[0007] Further, scales are marked on both of the two slide rails for reading the displacement value.

[0008] Further, the pressing block driving member includes: a driving lead screw assembly, including: a second lead screw sleeve, which is embedded on the horizontal section of the base; a second lead screw, which is arranged in the second lead screw sleeve, and one end of the second lead screw is connected to the pressing block, and the other end is provided with a hand crank.

[0009] Further, the slider is driven by a slider driving member, and the slider driving member includes: a first lead screw sleeve, which is embedded on the rod body of the connecting rod; a first lead screw, which is arranged in the first lead screw sleeve, one end is rotatably connected to the top surface of the detector housing, and the other end penetrates through the upper horizontal section of the base.

[0010] Further, a clamping groove is opened on the surface of the pressing block in contact with the steel cable.

[0011] Further, the sensing part of the pressure sensor exposes from the through hole of the base.

[0012] Further, a display device is configured on the detector housing, and the display device is connected to the pressure sensor and is used to display the value measured by the pressure sensor.

[0013] Furthermore, a method for detecting and analyzing tension of a transmission line guy tower guy wire tension detection and analysis device comprises the following steps:

[0014] The second screw rod is driven to rotate to control the pressing block to move on the base body, so that the pressing block contacts and presses the steel cable and the pressure sensor. When the pressing block contacts and presses the steel cable and the pressure sensor, the pressure sensor transmits the detected steel cable tension to the data analysis system.

[0015] By rotating the second screw rod, the slider and the load-bearing block are displaced on the slide rail to change the measuring angle between the two load-bearing blocks and the pressure sensor. Multiple groups of data are measured at different measuring angles. The multiple groups of data are sent to the data analysis system through the pressure sensor. The data analysis system automatically calculates the average value of the multiple groups of data, and compares the calculated average value with the design value to determine whether the cable tension is qualified.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] When the present invention detects the tension of the steel cable of the transmission line guy tower, the second screw rod is driven to rotate by rotating the handle to move the clamping block, and after the steel cable is clamped between the clamping block and the pressure sensor, data is measured once, and the data is received and recorded and analyzed by the data analysis system. Then, the position of the load-bearing block is adjusted by rotating the first screw rod, so as to adjust the angle between the two load-bearing blocks and the pressure sensor to change the measurement angle of the steel cable tension, and multiple measurements are achieved through multiple adjustments. At the same time, the data analysis system receives and records the tension values ​​measured multiple times, and automatically calculates the average value of the tension values ​​measured multiple times, and compares the average value with the design value, so as to evaluate the detection data and quickly judge whether the steel cable tension is qualified, thereby reducing the measurement error and improving the accuracy of the evaluation conclusion of the steel cable tension detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a front view of the structural schematic diagram of the present invention.

[0019] Figure 2 It is a top view of the structural schematic diagram of the present invention.

[0020] Figure 3 for Figure 2 Schematic diagram of the main structure of the AA section.

[0021] Figure 4 It is a side view of the structural schematic diagram of the present invention.

[0022] Among them, 1. tester main body, 2. display device, 3. pressure sensor, 4. slide rail, 5. slider, 6. connecting rod, 7. first lead screw, 8. load-bearing block, 9. base body, 10. rotating handle, 11. pressing block, 12. second lead screw. Detailed implementation manners

[0023] The following combines Figures 1 to 4 , and describes the detailed implementation manners of the present invention in detail. In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0024] The terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features; in the description of the present invention, unless otherwise specified, the meaning of "plurality" is two or more.

[0025] Embodiment

[0026] A tension detection and analysis device for a guy wire of a transmission line tower includes a detector and a data analysis system. The detector is used to detect the tension of the steel cable at different angles, and the data analysis system is used for detecting data reception, analysis and comparison. The data analysis system will calculate the average value of the detected data after each measurement by the detector, and compare the average value with the design value to judge whether the tension of the steel cable is qualified. As Figure 1 , Figure 2 and Figure 3 shown, the detector includes: a detector housing 1, a steel cable clamping mechanism and a cooperative displacement mechanism. The detector housing 1 is a housing without a bottom surface; the steel cable clamping mechanism includes: a base body 9, a pressing block 11 and a pressing block driving member. The base body 9 is a U-shaped plate body, which is fixed on the inner wall of the detector housing 1 through an auxiliary member. A through hole is opened in the upper horizontal section, and a pressure sensor 3 is arranged in the through hole. The sensing part of the pressure sensor 3 protrudes from the through hole of the base body 9, and is configured with a data distribution module for sending the detected data to the data analysis system connected and communicating with it; as Figure 3 and Figure 4As shown, the clamping block 11 slides on the vertical section of the base 9, and the clamping block 11 is located vertically below the pressure sensor 3; the clamping block driving member is arranged on the lower horizontal section of the base 9, and is used to drive the clamping block 11 to move on the base 9, so that the steel cable is clamped between the clamping block 11 and the pressure sensor 3; the coordinated displacement mechanism includes: two slide rails 4, two sliders 5 and two load-bearing blocks 8, the two slide rails 4 are respectively arranged on both sides of the detector housing 1, and the two slide rails 4 are both arranged along the height direction of the detector housing 1; the two sliders 5 slide on the two slide rails 4, respectively, and the two sliders 5 are synchronously connected by the connecting rod 6; the two load-bearing blocks 8 are respectively fixed on the two sliders 5, and the sliders 5 are driven to make the load-bearing blocks 8 displace synchronously, thereby changing the angle between the two load-bearing blocks 8 and the pressure sensor 3, and measuring the tension values ​​of the steel cable at multiple different angles.

[0027] In some embodiments, in order to facilitate reading of the sliding displacement value of the slider 5 on the slide rail 4 , scales are marked on both slide rails 4 .

[0028] In some embodiments, in order to facilitate driving the clamping block to clamp the steel cable, Figure 3 As shown, the clamping block driving member includes a driving screw assembly, which includes: a second screw sleeve and a second screw 12, the second screw sleeve is embedded in the horizontal section of the base 9; the second screw 12 is arranged in the second screw sleeve, and one end of the second screw 12 is connected to the clamping block 11, and the other end is provided with a shaking handle 10.

[0029] In some embodiments, in order to facilitate the synchronous sliding of the two sliders 5, a slider driving component is configured on the slider 5, and the slider driving component includes: a first screw sleeve and a first screw 7, the first screw sleeve is embedded in the rod body of the connecting rod 6; the first screw 7 is configured in the first screw sleeve, one end of which is rotatably connected to the top surface of the detector housing 1, and the other end passes through the upper horizontal section of the base 9. Through the rotation of the first screw 7, the connecting rod 6 completes the displacement, so that the sliders 4 at both ends of the connecting rod 6 slide synchronously.

[0030] In some embodiments, in order to improve the degree of clamping and fixing of the steel cable by the clamping block 11, a clamping groove for fixing and accommodating the steel cable is provided on the surface of the clamping block 11 that contacts the steel cable.

[0031] In some embodiments, a display device 2 is disposed on the detector housing 1 , and the display device 2 is connected to the pressure sensor 3 to display the value measured by the pressure sensor 3 , so that the observation and recording of the detection data is more convenient and intuitive.

[0032] In the present embodiment, a transmission line guy tower guy wire tension detection and analysis device performs tension detection and analysis:

[0033] First, shake and rotate the handle 10 to drive the second screw rod 12 to rotate, thereby controlling the pressing block 11 to move on the base 9, so that the pressing block 11 contacts and presses the steel cable and the pressure sensor 3. When the pressing block 11 contacts and presses the steel cable and the pressure sensor 3, the display device 2 will display the steel cable tension. At this time, the value will not change significantly if the pressing continues. It can be considered that the steel cable has been pressed between the pressing block 11 and the pressure sensor 3. The pressure sensor 3 sends the detection data at this time to the data analysis system for recording;

[0034] like Figure 3 As shown, by rotating the first screw rod 7, the connecting rod 6 drives the slider 5 and the load-bearing block 8 to move downward on the slide rail 4 to change the measuring angle between the two load-bearing blocks 8 and the pressure sensor 3. Multiple groups of data at different measuring angles are measured, and the multiple groups of data are automatically averaged in the data analysis system, and the average value is compared with the design value to reduce the measurement error, thereby improving the accuracy of the test data and quickly and accurately judging whether the cable tension is qualified.

[0035] The above disclosures are only several preferred specific embodiments of the present invention. However, the embodiments of the present invention are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A transmission line guy tower guy wire tension detection and analysis device, characterized in that: It includes a detector and a data analysis system. The detector is used to detect the tension of the steel cable at different angles and includes: A detector housing (1), which is a housing without a bottom surface; A steel cable clamping mechanism, including: a base body (9), which is a U-shaped plate body, fixed on the inner wall of the detector housing (1) through auxiliary parts, with a through hole opened on the upper horizontal section, and a pressure sensor (3) is arranged in the through hole. The pressure sensor (3) is connected and communicates with the data analysis system; a pressing block (11), which slides on the vertical section of the base body (9), and the pressing block (11) is located vertically below the pressure sensor (3); a pressing block driving member, which is arranged on the lower horizontal section of the base body (9) and is used to drive the pressing block (11) to move on the base body (9) so as to clamp the steel cable between the pressing block (11) and the pressure sensor (3); A cooperative displacement mechanism, including: two slide rails (4), which are respectively arranged on both sides of the detector housing (1), and both slide rails (4) are arranged along the height direction of the detector housing (1); two sliders (5), which respectively slide on the two slide rails (4), and the two sliders (5) are connected and synchronized through a connecting rod (6); two bearing blocks (8), which are respectively fixed on the two sliders (5), and drive the sliders (5) to make the bearing blocks (8) displace synchronously, so as to change the angle between the two bearing blocks (8) and the pressure sensor (3), and measure the tension values of the steel cable at multiple different angles.

2. A transmission line guy tower tension detection and analysis device according to claim 1, characterized in that: The data analysis system is used to receive the detection data measured by the pressure sensor (3) at different angles, and is used to calculate the average value of the received multiple groups of detection data and compare the average value with the set value.

3. A transmission line guy tower tension detection and analysis device according to claim 1, characterized in that: The pressing block driving member includes: A driving screw rod assembly, including: a second screw rod sleeve, which is embedded on the horizontal section of the base body (9); a second screw rod (12), which is arranged in the second screw rod sleeve, and one end of the second screw rod (12) is connected to the pressing block (11), and the other end is provided with a hand crank (10).

4. A transmission line guy tower tension detection and analysis device according to claim 1, characterized in that: The slider (5) is driven by a slider driving member, and the slider driving member includes: A first screw rod sleeve, which is embedded on the rod body of the connecting rod (6); A first screw rod (7), which is arranged in the first screw rod sleeve, one end is rotatably connected to the top surface of the detector housing (1), and the other end penetrates through the upper horizontal section of the base body (9).

5. A transmission line guy tower tension detection and analysis device according to claim 1, characterized in that: The surface of the pressing block (11) in contact with the steel cable is provided with a clamping groove.

6. A transmission line guy tower tension detection and analysis device according to claim 1, characterized in that: The sensing part of the pressure sensor (3) exposes from the through hole of the base body (9).

7. A transmission line guy tower tension detection and analysis device according to claim 1, characterized in that: A display device (2) is configured on the detector housing (1), and the display device (2) is connected to the pressure sensor (3) and is used to display the value measured by the pressure sensor (3).

8. A transmission line guy tower tension detection and analysis device according to claim 1, characterized in that: Scales are marked on both of the two slide rails (4) of the detector.

9. A method for detecting and analyzing tension of a transmission line guy tower according to any one of claims 1 to 8, characterized in that: It includes the following steps: Drive the pressing block (11) to move on the base body (9) so that the pressing block (11) contacts and presses the steel cable and the pressure sensor (3), and record the value of the pressure sensor (3); The slider (5) and the load-bearing block (8) are displaced on the slide rail (4) to change the measuring angle between the two load-bearing blocks (8) and the pressure sensor (3), and multiple groups of data are measured at different measuring angles. The average value of the multiple groups of data is calculated and then compared with the set value.

10. The method for detecting and analyzing tension of a transmission line guy tower according to claim 9, characterized in that: The following steps are also included: When the pressing block (11) contacts and presses the steel cable and the pressure sensor (3), the pressure sensor (3) transmits the detected steel cable tension to the data analysis system; The multiple sets of data measured at different measuring angles are sent to the data analysis system via the pressure sensor (3), and the data analysis system automatically calculates the average value of the multiple sets of data, and compares the calculated average value with the design value to determine whether the cable tension is qualified.

Images