A tension measurement and connection system for guy wires of a guyed wind measuring tower and its assembly method

Abstract

A tension measurement and connection system for guy wires of a guyed wind measurement tower and its assembly method belong to the infrastructure technology field of the onshore wind power industry. The tension measurement and connection system is installed at the connection point between one end of the guy wire and the foundation tie rod of the guy wire reel, realizing the connection between the structural guy wire and the foundation tie rod. Simultaneously, during installation and construction, the tension of the guy wire is measured to ensure it reaches its design value, guaranteeing the safety of the entire structural system. It connects the main rod to the foundation tie rod via a U-shaped connecting rod and a circular loop, and a limiting nut secures the connecting crossbar to the U-shaped connecting rod, forming a closed-loop series structure. The guy wire is then fixed to the series structure using a clamp sleeve, a conical clamp, and clamp tightening bolts. A sensor installed on the sensor mounting bracket and the limiting nut ensure the pre-tension of the guy wire reaches its design value. This invention can simultaneously measure the pre-tension of the guy wire and connect it to the foundation tie rod of the guy wire reel, allowing the guy wire to perform its designed function and ensuring the safety of the wind measurement tower.

Description

Technical Field

[0001] This invention belongs to the field of infrastructure technology in the onshore wind power industry, particularly the field of tension measurement and connection technology for guyed wind tower structures, and especially relates to a tension measurement and connection system for guyed wind tower cables and its assembly method. Background Technology

[0002] Guyed wind measurement towers are a primary wind measurement structure in wind farm development. Their simple structure and convenient construction have led to their widespread application in practical engineering. The structure of a guyed wind measurement tower primarily relies on guy wires for constraint and fixation. One end of the guy wire connects to the tower structure, and the other end is fixed to the guy wire anchor (plate anchor) foundation. Ensuring the pre-tension of the guy wire reaches the design value is crucial for structural safety; therefore, accurate measurement of the guy wire pre-tension is critical during the installation and construction of the wind measurement tower. However, currently, in actual installation and construction, the pre-tension of the guy wire is not accurately measured. Instead, workers rely solely on their experience and the degree of tension to determine if the design pre-tension has been reached. This inaccurate installation method introduces significant errors, creating unpredictable safety hazards for the guyed wind measurement tower. In view of the original construction method for installing guy wires in guyed anemometer towers, the goal of this invention is to invent a tension measurement and connection system for guyed anemometer towers to replace the original connection system. This tension measurement and connection system for guyed anemometer towers is equipped with a detachable pressure sensor. During the installation process, the pressure sensor can accurately measure the pre-tension of the guy wires, ensuring that the pre-tension of the installed guy wires reaches its design value. This solves the problem that the current guy wire installation method cannot achieve the design value of the pre-tension, thus threatening the safety of the anemometer tower.

[0003] The collapse of wind measurement towers not only damages the equipment and causes economic losses, but more importantly, it interrupts the continuity of wind measurement records, affecting the accuracy of wind resource assessment and consequently impacting the economic benefits of wind farm development. Therefore, resolving the current issue of wind measurement tower safety being threatened by the inability of guy wire installation methods to achieve the designed pre-tension value is crucial for ensuring the accuracy of wind resource assessment. Summary of the Invention

[0004] The objective of this invention is to solve the problem in the above-mentioned background technology that the pre-tension of the guy wire cannot reach the design value due to the safety construction method of guy wire, thus threatening the safety of the wind measurement tower, and to provide a tension measurement and connection system for guy wire wind measurement towers to replace the original connection system.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0006] A tension measurement and connection system for the guy wire type wind measurement tower cable is provided. The tension measurement and connection system is installed at the connection position between one end of the guy wire 10 and the guy wire plate (plate anchor) foundation tie rod to realize the connection between the structural guy wire and the foundation tie rod. At the same time, the tension of the guy wire is measured during installation and construction to ensure that it reaches its design value, thus ensuring the safety of the entire structural system (guy wire type wind measurement tower).

[0007] The tension measurement and connection system includes a U-shaped connecting main rod 1, a clamp sleeve 2, a conical clamp 3, a clamp tightening bolt 4, a sensor fixing support 5, a connecting and fixing crossbar 6, a tightening component 7, and a limiting fixing nut 8. The U-shaped connecting main rod 1 is connected to the foundation tie rod ring 9, and the connecting and fixing crossbar 6 is fixed to the U-shaped connecting main rod 1 by the limiting fixing nut 8, forming a closed ring-shaped series structure. Simultaneously, the clamp sleeve 2, the conical clamp 3, and the clamp tightening bolt 4 fix the pull wire 10 in the series structure. The sensor 101 installed on the sensor fixing support 5 and the limiting fixing nut 8 ensure that the pre-tension of the pull wire 10 reaches its design value. This allows for the measurement of the pre-tension of the pull wire 10 while simultaneously connecting the pull wire 10 to the pull wire reel (plate anchor) foundation tie rod, enabling the pull wire to perform its designed function and ensuring the safety of the wind measurement tower.

[0008] The U-shaped connecting main rod 1 is a U-shaped rod structure with threads. Each end of the connecting and fixing crossbar 6 has a through hole for passing through the U-shaped rod. After the U-shaped rod is sleeved with the base tie rod ring 9, the U-shaped open end first installs the chuck sleeve 2 through the limiting ear plate through hole of the chuck sleeve 2, then installs the connecting and fixing crossbar 6, and screws two limiting and fixing nuts 8 into the U-shaped rod to initially fix the chuck sleeve 2 and the connecting and fixing crossbar 6 on the U-shaped rod. The preload of the pull line 10 is adjusted by changing the position of the limiting and fixing nuts 8.

[0009] The collet sleeve 2 is axially arranged between the two rods of the U-shaped rod. It has a tapered through hole 21 and an internally threaded through hole 22 for the tapered collet 3 to pass through. A limiting ear plate 23 is provided at the end of the collet sleeve 2 near the internally threaded through hole 22. The tapered through hole 21 engages with the tapered collet 3. The tapered collet 3 has a through hole for the pull wire 10 to pass through, and a collet tightening bolt 4 is installed at its outer end. The tapered collet 3 is placed inside the tapered through hole 21, serving a limiting and fixing function, and the collet tightening bolt 4 is fixed through the internally threaded through hole 22. The tapered collet 3 clamps and fixes the pull wire 10 by adjusting the position of the collet tightening bolt 4. The limiting ear plate 23 has a limiting through hole inside, through which the U-shaped rod passes, confining the collet sleeve 2 inside the U-shaped rod 1 and preventing the collet sleeve 2 from tipping over.

[0010] The conical chuck 3 is provided with a clamping through hole 31 along the axial direction, and a retaining tooth 32 is provided at the position of the clamping through hole 31. The pull wire 10 passes through the clamping through hole 31, and the conical chuck 3 is placed at the conical through hole 21 of the chuck sleeve 2. Due to the limiting effect of the cone, tightening the chuck tightening bolt 4 can generate greater pressure on the conical inclined surface to clamp the pull wire 10 in the clamping through hole 31 more tightly. The process of continuously tightening the chuck tightening bolt 4 is the process of the conical chuck 3 continuously clamping the pull wire 10.

[0011] There are two sensor fixing supports 5, symmetrically installed on the chuck sleeve 2. Each support includes a countersunk bolt hole 51, a through hole 52, a U-shaped groove 53, a bearing support 54, and a sensor support 55. The countersunk bolt hole 51 is used to fix the sensor 101. The bolts fix the sensor fixing supports 5 to the chuck sleeve 2 through the through hole 52. The U-shaped groove 53 avoids the obstruction of the U-shaped rod 11. The bearing support 54 mainly bears the preload of the pull wire 10. The preload on the pull wire 10 is transmitted to the chuck sleeve 2 through the tapered chuck 3. The chuck sleeve 2 transmits the force to the sensor 101 through the sensor fixing supports 5. The sensor support 55 is used to support the sensor 101 and also increases the distance between the end of the chuck sleeve 2 and the connecting fixing crossbar 6, which facilitates the tightening operation of the clamping component 7.

[0012] The connecting and fixing crossbar 6 includes a load-bearing crossbar 64, an axisymmetric through hole 61 in the middle of the load-bearing crossbar 64 for the pull wire 10 to pass through, central through holes 62 on both sides of the axisymmetric through hole 61 for the U-shaped connecting main rod 1 to pass through, and a limiting groove 63 in the middle of the load-bearing crossbar 64; the limiting groove 63 is used to fix the end of the telescopic rod 72 of the clamping member 7 and plays a limiting role; the load-bearing crossbar 64 is used to bear the pressure from the sensor 101 (during the force measurement process) or the pressure from the clamping member 7 (after the force measurement is completed).

[0013] The clamping member 7 is located between the connecting and fixing crossbar 6 and the chuck sleeve 2. It consists of a sleeve 71, a telescopic rod 72 and a central through hole 73. The sleeve 71 has an internal thread, which is used in conjunction with the external thread of the telescopic rod 72. The telescopic rod 72 can be shortened or extended by rotating clockwise or counterclockwise. After the force measurement is completed, it is placed between the chuck sleeve 2 and the connecting and fixing crossbar 6 and the clamping member 7 is extended to clamp the chuck sleeve 2 and the connecting and fixing crossbar 6, replacing the force on the sensor 101, and then the sensor 101 is removed.

[0014] Furthermore, the clamping bolt 4 is composed of a central through hole 41 and an external thread 42; the central through hole is used for the pull wire 10 to pass through the clamping bolt 4; the external thread 42 cooperates with the internal thread through hole 22 of the clamp sleeve 2 to fix the clamping bolt 4.

[0015] An assembly method for a tension measurement and connection system of a guyed wind measuring tower cable includes the following steps:

[0016] First, use bolts to symmetrically install the sensor fixing support 5 on the chuck sleeve 2; then pass the U-shaped connecting main rod 1 onto the base tie rod ring 9; further, pass the U-shaped connecting main rod 1 through the limiting through hole of the limiting ear plate 23 of the chuck sleeve 2 to restrict the chuck sleeve 2 onto the U-shaped connecting main rod 1. Note that the small diameter hole of the tapered through hole 21 of the chuck sleeve 2 is consistent with the open end of the U-shaped connecting main rod 1, and the large diameter hole of the tapered through hole 21 of the chuck sleeve 2 is consistent with the closed end of the U-shaped connecting main rod 1; then pass the U-shaped connecting main rod 1 through the axially symmetrical through hole 61 of the connecting fixing crossbar 6 to restrict the connecting fixing crossbar 6 onto the U-shaped connecting main rod 1. Note that the side of the connecting fixing crossbar 6 with the limiting groove 63 is consistent with the closed end of the U-shaped connecting main rod 1; finally, install the limiting fixing nut 8 at the middle position of the U-shaped rod 11 of the U-shaped connecting main rod 1.

[0017] Next, thread the pull cable 10 sequentially through the central through hole 62 of the connecting and fixing crossbar 6, the central through hole 73 of the clamping component 7, the tapered through hole 21 and the internal threaded through hole 22 of the chuck sleeve 2, and the central through hole 41 of the chuck clamping bolt 4. Place the tapered chuck 3 inside the tapered through hole 21 of the chuck sleeve 2, ensuring that the smaller diameter end of the tapered chuck aligns with the smaller diameter end of the tapered through hole 21 of the chuck sleeve 2. This ensures that the tapered chuck 3 clamps the pull cable 10 securely. When locking is required, tighten the chuck clamping bolt to release the continuously increasing tension. The clamping force is converted into radial pressure on the outside of the conical chuck 3 through the conical inclined surface inside the chuck sleeve 2, and the pull wire 10 is clamped by the locking teeth 32 of the conical chuck 3; the chuck clamping bolt 4 is installed on the chuck sleeve 2 through the internal threaded through hole 22. Note that at this time, the chuck clamping bolt 4 should not clamp the conical chuck 3 tightly, so that the pull wire 10 can move freely inside the conical chuck 3; at the same time, pay special attention to the length of the clamping component 7 being less than the sum of the height of the sensor support 55 of the sensor fixing support 5 and the length of the sensor 101.

[0018] Next, one end of the tensioner is connected to the anchor rod of the tensioner disc, and the other end is connected to the tensioner 10, which passes through the clamp tightening bolt 4. The tensioner is used to tighten the tensioner 10 until it is taut. The sensor 101 is then mounted on the sensor support 55 using countersunk bolts. The position of the clamp sleeve 2 is adjusted so that the free end of the sensor 101 abuts against the connecting and fixing crossbar 6, and the clamp tightening bolt 4 is tightened to firmly clamp the tensioner 10. The tensioner is then gradually released, and the tension on the tensioner is gradually transferred to the sensor 101. The pressure on the sensor 101 is measured, and the sum of the pressures of the two sensors 101 is the tensioner 10. The preload is 0. At this point, the preload may not be equal to the design preload. Therefore, it is necessary to simultaneously loosen (reduce the preload) or tighten (increase the preload) the two limiting nuts 8 installed on the U-shaped connecting main rod 1 so that the preload of the tension wire 10 is equal to the design preload of the tension wire 10. At the same time, pay special attention to checking again before releasing the tension of the tension wire tensioner that the length of the tightening member 7 is less than the sum of the height of the sensor support 55 of the sensor fixing support 5 and the length of the sensor 101. Otherwise, the tension of the tension wire tensioner will be transmitted to the tightening member 7 instead of being fully transmitted to the sensor 101. In this case, the measured tension wire preload result will have a very large error and will be unknown.

[0019] Finally, when the pre-tension of the tension wire is equal to the design pre-tension of the tension wire, the tension wire 10 is gradually tightened again using the tension wire tensioner; when the tension measured by the sensor 101 is zero, the sensor fixing support 5 and the sensor 101 are removed; then the tightening member 7 is placed in the limiting groove 63 of the connecting fixing crossbar 6, and the telescopic rod 72 of the tightening member 7 is rotated to extend the tightening member 7, so that it tightens the clamp sleeve 2 and the connecting fixing crossbar 6; the tension of the tension wire tensioner is gradually released again and the tension wire tensioner is removed. At this time, the tension on the tension wire tensioner is gradually transferred to the tightening member 7.

[0020] The above main assembly steps complete the construction and assembly of a tension measurement and connection system for a guyed wind measurement tower cable.

[0021] The beneficial effects of this invention are as follows:

[0022] The tension measurement and connection system for a guyed wind measuring tower provided by this invention is equipped with a detachable pressure sensor. During installation, the pressure sensor can accurately measure the pre-tension of the guy wire, ensuring that the pre-tension reaches its design value. This solves the problem that current installation methods often fail to achieve the designed pre-tension, thus threatening the safety of the wind measuring tower. Furthermore, the system's pressure sensor is reusable and easily disassembled, offering excellent economic efficiency. The system converts guy wire pre-tension measurement into pressure measurement through a simple structure, allowing for easy disassembly of the pressure sensor. The system can be connected to the guy wire reel (plate anchor) foundation tie rod, providing both measurement of guy wire pre-tension and connection between the guy wire and the reel (plate anchor) foundation tie rod. The system has a simple structure, and all components are bolted together, making installation and disassembly very simple and convenient. Attached image description:

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention after installation;

[0024] Figure 2 This is a cross-sectional view of the system structure during the installation and construction process of this invention;

[0025] Figure 3 These are schematic diagrams of the right side view and front elevation view of the chuck sleeve of the present invention;

[0026] Figure 4 These are schematic diagrams of the conical chuck of the present invention, including a right side view, a front view, and an internal top view.

[0027] Figure 5 This is a cross-sectional view of the clamping bolt of the present invention;

[0028] Figure 6 These are top and front views of the sensor mounting bracket of the present invention;

[0029] Figure 7 These are top and front views of the cross support rod lifting connection structure of the present invention;

[0030] Figure 8 This is a top view of the fixed pressure plate of the present invention.

[0031] In the diagram: 1. U-shaped connecting main rod; 2. Chuck sleeve; 3. Conical chuck; 4. Chuck tightening bolt; 5. Sensor fixing support; 6. Connecting and fixing crossbar; 7. Tightening component; 8. Limiting and fixing nut; 9. Pull rod ring; 10. Pull wire; 101. Sensor; 21. Conical through hole; 22. Internal thread through hole; 23. Limiting ear plate; 31. Clamping through hole; 32. Clamping tooth; 41. Center through hole; 42. External thread; 51. Countersunk bolt hole; 52. Ordinary through hole; 53. U-shaped groove; 54. Bearing support; 55. Sensor support; 61. Axisymmetric through hole; 62. Center through hole; 63. Limiting groove; 64. Bearing crossbar; 71. Sleeve; 72. Telescopic rod; 73. Center through hole. Detailed Implementation

[0032] The present invention will be further described below with reference to specific embodiments.

[0033] A tension measurement and connection system for guyed wind tower cables is disclosed. This system is installed at the connection point between one end of the guy wire and the guy wire disc (plate anchor) foundation tie rod, achieving the connection between the structural guy wire and the foundation. Simultaneously, during installation and construction, the tension of the guy wire is measured to ensure it reaches its design value, guaranteeing structural safety. The system comprises a U-shaped connecting main rod 1, a clamp sleeve 2, a conical clamp 3, a clamp tightening bolt 4, a sensor fixing support 5, a connecting and fixing crossbar 6, a tightening component 7, and a limiting fixing nut 8. The main rod 1 is connected to the foundation tie rod in a U-shaped loop, and the connecting crossbar is fixed to the main rod 1 in a U-shaped loop to form a closed ring-shaped series structure. At the same time, the guy wire 10 is fixed in the series structure by the clamp sleeve 2, the conical clamp 3 and the clamp tightening bolt 4. The sensor 101 of the sensor fixing support 5 and the limit fixing nut 8 are used to make the pretension of the guy wire 10 reach its design value. In this way, the pretension of the guy wire 10 can be measured and the guy wire 10 can be connected to the guy wire plate (plate anchor) foundation tie rod at the same time, so that the guy wire can play its design role and ensure the safety of the wind measurement tower.

[0034] The U-shaped connecting main rod 1 consists of a U-shaped rod and a thread 12; the U-shaped rod 11 is mainly connected to the basic tie rod ring 9, and at the same time serves as a fixed support structure for the connecting and fixing crossbar 6; the thread 12 is used to fix the limiting and fixing nut 8, which fixes the connecting and fixing crossbar 6 to the U-shaped connecting main rod 1, and the preload of the pull line 10 is adjusted by changing the position of the limiting and fixing nut 8.

[0035] The chuck sleeve 2 consists of a tapered through hole 21, an internal threaded through hole 22, and a limiting ear plate 23. The tapered chuck 3 is placed inside the tapered through hole 21 to limit and fix it. It works with the chuck tightening bolt 4 to clamp and fix the pull wire 10. The internal threaded through hole 22 is used to fix the chuck tightening bolt 4. The limiting ear plate has a limiting through hole inside. The U-shaped rod 11 passes through the limiting through hole and through the limiting ear plate to restrict the chuck sleeve 2 inside the U-shaped rod 11, preventing the chuck sleeve 2 from tipping over.

[0036] The conical chuck 3 consists of a clamping through hole 31 and a locking tooth 32. The locking tooth 32 is inside the clamping through hole 31. The pull wire 10 passes through the clamping through hole 31. The conical chuck 3 is placed at the conical through hole 21 of the chuck sleeve 2. Due to the limiting effect of the cone, tightening the chuck tightening bolt 4 will generate greater pressure on the conical inclined surface to clamp the pull wire 10 in the clamping through hole 31 more tightly. The process of continuously tightening the chuck tightening bolt 4 is the process of the conical chuck 3 continuously clamping the pull wire 10.

[0037] The clamping bolt 4 consists of a central through hole 41 and an external thread 42; the central through hole is used for the pull wire 10 to pass through the clamping bolt 4; the external thread 42 cooperates with the internal thread through hole 22 of the clamp sleeve 2 to fix the clamping bolt 4.

[0038] The sensor mounting bracket 5 consists of a countersunk bolt hole 51, a through hole 52, a U-shaped recess 53, a bearing bracket 54, and a sensor bracket 55. The countersunk bolt hole 51 is used to fix the sensor 101. The sensor mounting bracket 5 is fixed to the chuck sleeve 2 with bolts through the through hole 52. The U-shaped recess 53 avoids the obstruction of the U-shaped rod 11. The bearing bracket 54 mainly bears the preload of the pull wire 10. The preload on the pull wire 10 is transmitted to the chuck sleeve 2 through the conical chuck 3. The chuck sleeve 2 transmits the force to the sensor 101 through the sensor mounting bracket 5. The sensor bracket 55 is used to support the sensor 101 and at the same time increases the distance between the end of the chuck sleeve 2 and the connecting fixing crossbar 6, which facilitates the tightening operation of the tightening component 7.

[0039] The connecting and fixing crossbar 6 is composed of an axisymmetric through hole 61, a central through hole 62, a limiting groove 63, and a load-bearing crossbar 64; the axisymmetric through hole 61 is used to pass through the U-shaped rod 11; the central through hole 62 is used to pass through the pull wire 10; the limiting groove 63 is used to fix the clamping member 7 in the position of the connecting and fixing crossbar 6; the load-bearing crossbar 64 is used to bear the pressure from the sensor 101 (during the force measurement process) or the pressure from the clamping member 7 (after the force measurement is completed).

[0040] The clamping member 7 consists of a sleeve 71, a telescopic rod 72, and a central through hole 73. The sleeve 71 has an internal thread, which is used in conjunction with the external thread of the telescopic rod 72. The telescopic rod 72 can be shortened or extended by rotating clockwise or counterclockwise. After the force measurement is completed, it is placed between the chuck sleeve 2 and the connecting and fixing crossbar 6, and the clamping member is extended to clamp the chuck sleeve 2 and the connecting and fixing crossbar 6, replacing the force of the sensor 101, and then the sensor 101 is removed.

[0041] Specific assembly method:

[0042] An assembly method for a tension measurement and connection system of a guyed wind measuring tower cable includes the following steps:

[0043] First, use bolts to symmetrically install the sensor fixing support 5 onto the chuck sleeve 2; then, pass the U-shaped connecting main rod 1 onto the base tie rod ring 9; further, pass the U-shaped connecting main rod 1 through the limiting through hole of the limiting ear plate 23 of the chuck sleeve 2, restricting the chuck sleeve 2 onto the U-shaped connecting main rod 1. Note that one end of the small diameter hole of the tapered through hole 21 of the chuck sleeve 2 is consistent with the open end of the U-shaped connecting main rod 1, and one end of the large diameter hole of the tapered through hole 21 of the chuck sleeve 2 is consistent with the closed end of the U-shaped connecting main rod 1; then, pass the U-shaped connecting main rod 1 through the axially symmetrical through hole 61 of the connecting fixing crossbar 6, restricting the connecting fixing crossbar 6 onto the U-shaped connecting main rod 1. Note that one side of the connecting fixing crossbar 6 with the limiting groove 63 is consistent with the closed end of the U-shaped connecting main rod 1; finally, install the limiting fixing nut 8 at the middle position of the U-shaped rod 11 of the U-shaped connecting main rod 1.

[0044] Next, thread the pull wire 10 through the central through hole 62 of the connecting and fixing crossbar 6, the central through hole 73 of the clamping component 7, the conical through hole 21 and the internal threaded through hole 22 of the chuck sleeve 2, and the central through hole 41 of the chuck clamping bolt 4. Clamp the pull wire 10 with the teeth 32 of the conical chuck 3, and place the conical chuck 3 inside the conical through hole 21 of the chuck sleeve 2. Note that the smaller diameter end of the conical chuck should be aligned with the smaller diameter end of the conical through hole 21 of the chuck sleeve 2 to ensure that the conical chuck 3 clamps the pull wire 10. Finally, install the chuck clamping bolt 4 on the chuck sleeve 2 through the internal threaded through hole 22. Note that the chuck clamping bolt 4 should not press against the conical chuck 3 at this time; it should allow the pull wire 10 to move freely inside the conical chuck 3. Also, pay special attention to the length of the clamping component 7, which must be less than the sum of the height of the sensor support 55 and the length of the sensor.

[0045] Next, connect one end of the tensioner to the anchor rod of the tensioner disc and the other end to the tensioner 10, which passes through one end of the clamp tightening bolt 4. Tighten the tensioner until the tensioner 10 is taut. Install the sensor 101 onto the sensor support 55 of the sensor mounting bracket 5 using a countersunk bolt. Adjust the position of the clamp sleeve 2 so that the free end of the sensor 101 abuts against the connecting fixing crossbar 6, and tighten the clamp tightening bolt 4 to firmly clamp the tensioner 10. Then gradually release the tensioner; the tension on the tensioner gradually transfers to the sensor. Measure the pressure of the sensor; the sum of the pressures from the two sensors... This refers to the preload of the tension cable. The preload at this point may not be equal to the design preload. Therefore, it is necessary to simultaneously loosen (reduce preload) or tighten (increase preload) the two limiting nuts 8 installed on the U-shaped connecting main rod 1 to ensure that the preload of the tension cable equals the design preload. At the same time, special attention should be paid to checking again before releasing the tension of the tensioner that the length of the tightening member 7 is less than the sum of the height of the sensor support 55 and the length of the sensor. Otherwise, the tension of the tensioner will be transmitted to the tightening member 7 instead of entirely to the sensor, resulting in a very large and unknown error in the measured preload.

[0046] Finally, when the pre-tension of the tensioning wire is equal to the design pre-tension of the tensioning wire, the tensioning wire 10 is gradually tightened again using the tensioning wire tensioner; when the tension measured by the sensor 101 is zero, the sensor fixing support 5 and the sensor 101 are removed; then the telescopic rod 72 of the tightening component 7 is placed in the limiting groove 63 of the connecting fixing crossbar 6, and the telescopic rod 72 of the tightening component 7 is rotated to extend the tightening component 7, so that it tightens the clamp sleeve 2 and the connecting fixing crossbar 6; the tension of the tensioning wire tensioner is gradually released again and the tensioning wire tensioner is removed. At this time, the tension on the tensioning wire tensioner is gradually transferred to the tightening component 7.

[0047] The above main assembly steps complete the construction and assembly of a tension measurement and connection system for a guyed wind measurement tower cable.

[0048] The above-described embodiments are merely illustrative of the implementation methods of the present invention, but should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the protection scope of the present invention.

Claims

1. A tension measurement and connection system for a guy wire type wind measuring tower, wherein the tension measurement and connection system is installed at the connection position between one end of the guy wire (10) and the foundation tie rod of the guy wire plate, realizing the connection between the structural guy wire and the foundation tie rod, and simultaneously measuring the tension of the guy wire during installation to ensure that it reaches its design value, thus ensuring the safety of the entire structural system; characterized in that, The tension measurement and connection system includes a U-shaped connecting main rod (1), a clamp sleeve (2), a conical clamp (3), a clamp tightening bolt (4), a sensor fixing support (5), a connecting and fixing crossbar (6), a tightening component (7), and a limiting fixing nut (8). The U-shaped connecting main rod (1) is connected to the base tie rod ring (9), and the connecting and fixing crossbar (6) is fixed to the U-shaped connecting main rod (1) by the limiting fixing nut (8) to form a closed ring series structure. At the same time, the clamp sleeve... (2) The conical clamp (3) and clamp tightening bolt (4) fix the pull wire (10) to the series structure, and the sensor (101) and the limiting fixing nut (8) installed on the sensor fixing support (5) make the pre-tension of the pull wire (10) reach its design value. In this way, the pre-tension of the pull wire (10) can be measured at the same time, and the pull wire (10) can be connected to the pull wire reel foundation tie rod, so that the pull wire can play its design role and ensure the safety of the wind measurement tower; the specific tension measurement and connection system is as follows: The U-shaped connecting main rod (1) is a U-shaped rod structure with threads. The connecting and fixing crossbar (6) has a through hole at each end for passing through the U-shaped rod. After the U-shaped connecting main rod (1) is connected to the base tie rod ring (9), the U-shaped opening end is fitted with the clamp sleeve (2) through the limiting ear plate (23), and then the connecting and fixing crossbar (6) is installed. Two limiting and fixing nuts (8) are screwed into the U-shaped rod to initially fix the clamp sleeve (2) and the connecting and fixing crossbar (6) on the U-shaped rod. The preload of the pull line (10) is adjusted by changing the position of the limiting and fixing nuts (8). The chuck sleeve (2) is arranged axially between the two rods. It is provided axially with a tapered through hole (21) for passing through the tapered chuck (3) and an internal thread through hole (22) for installing the chuck tightening bolt (4). The end of the chuck sleeve (2) near the internal thread through hole (22) is provided with a limiting ear plate (23). The tapered through hole (21) is close to the opening end of the U-shaped connecting main rod (1). The tapered chuck (3) is provided with a through hole for passing through the pull wire (10). The end away from the opening of the U-shaped connecting main rod (1) is equipped with the chuck tightening bolt (4). The tapered chuck (3) is placed inside the tapered through hole (21). The tapered chuck (3) clamps and fixes the pull wire (10) by adjusting the position of the chuck tightening bolt (4). The conical chuck (3) is provided with a clamping through hole (31) along the axial direction for passing through the pull wire (10), and a retaining tooth (32) is provided at the position of the clamping through hole (31); the process of continuously tightening the chuck top bolt (4) is the process of the conical chuck (3) continuously clamping the pull wire (10); The two sensor fixing supports (5) are symmetrically installed on the chuck sleeve (2), including countersunk bolt holes (51), ordinary through holes (52), U-shaped grooves (53), bearing supports (54) and sensor supports (55); the countersunk bolt holes (51) are used to fix the sensor (101); the U-shaped grooves (53) are used to avoid the obstruction of the U-shaped connecting main rod (1); the bearing supports (54) are used to bear the pre-tension of the pull wire (10), the pre-tension on the pull wire (10) is transmitted to the chuck sleeve (2) through the conical chuck (3), and the chuck sleeve (2) transmits it to the sensor (101) through the sensor fixing supports (5); the sensor supports (55) are used to support the sensor (101), and at the same time increase the distance between the end of the chuck sleeve (2) and the connecting fixing crossbar (6), which facilitates the tightening operation of the clamping component (7); The connecting and fixing crossbar (6) includes a load-bearing crossbar (64), an axisymmetric through hole (62) in the middle of the load-bearing crossbar (64) for passing through the pull wire (10), central through holes (61) on both sides of the axisymmetric through hole (62) for passing through the U-shaped connecting main rod (1), and a limiting groove (63) in the middle of the load-bearing crossbar (64); the limiting groove (63) is used to fix the end of the telescopic rod (72) of the clamping member (7) and plays a limiting role; the load-bearing crossbar (64) is used to bear the pressure from the sensor (101) or the pressure from the clamping member (7); The clamping member (7) is located between the connecting fixed crossbar (6) and the chuck sleeve (2), and includes a sleeve (71), a telescopic rod (72) and a central through hole (73); the sleeve (71) has an internal thread, which is used in conjunction with the external thread of the telescopic rod (72). The telescopic rod (72) can be shortened or extended by rotating clockwise or counterclockwise; after the force measurement is completed, it is placed between the chuck sleeve (2) and the connecting fixed crossbar (6) and the clamping member (7) is extended to clamp the chuck sleeve (2) and the connecting fixed crossbar (6) to replace the force on the sensor (101), and then the sensor (101) is removed. The limiting ear plate (23) is provided with a limiting through hole. The U-shaped rod passes through the limiting through hole and passes through the limiting ear plate (23) to restrict the chuck sleeve (2) inside the U-shaped connecting main rod (1) and prevent the chuck sleeve (2) from overturning.

2. The tension measurement and connection system for a guyed wind measuring tower according to claim 1, characterized in that, The clamping bolt (4) consists of a central through hole (41) and an external thread (42); the central through hole is used for the pull wire (10) to pass through the clamping bolt (4); the external thread (42) cooperates with the internal thread through hole (22) of the clamp sleeve (2) to fix the clamping bolt (4).

3. A method for assembling the tension measurement and connection system of the guy wire of a guyed wind measuring tower as described in any one of claims 1-2, characterized in that, Includes the following steps: First, the sensor fixing bracket (5) is symmetrically installed on the chuck sleeve (2) using bolts; and the U-shaped connecting rod (1) is sleeved on the base tie rod ring (9); then the U-shaped connecting rod (1) is passed through the limiting through hole of the limiting ear plate (23), wherein one end of the small diameter hole of the tapered through hole (21) of the chuck sleeve (2) is close to the opening end of the U-shaped connecting rod (1); then the U-shaped connecting rod (1) is passed through the axisymmetric through hole (62) of the connecting fixing crossbar (6), and the connecting fixing crossbar (6) is restricted on the U-shaped connecting rod (1), wherein one side of the connecting fixing crossbar (6) with the limiting groove (63) is consistent with the sealing end of the U-shaped connecting rod (1); finally, the limiting fixing nut (8) is installed in the middle position of the U-shaped connecting rod (1); Next, the pull wire (10) is passed sequentially through the central through hole (61) of the connecting and fixing crossbar (6), the central through hole (73) of the clamping component (7), the conical through hole (21) and the internal thread through hole (22) of the chuck sleeve (2), and the central through hole (41) of the chuck clamping bolt (4); the conical chuck (3) is placed inside the conical through hole (21) of the chuck sleeve (2), wherein the small diameter end of the conical chuck is aligned with the small diameter end of the conical through hole (21) of the chuck sleeve (2), ensuring that the conical chuck (3) clamps the pull wire (10); when locking is required, the chuck clamping bolt is tightened to increase the clamping force. The force is converted into radial pressure on the outside of the conical chuck (3) through the conical inclined surface inside the chuck sleeve (2), and the pull wire (10) is clamped by the cleats (32) of the conical chuck (3); the chuck clamping bolt (4) is installed on the chuck sleeve (2) through the internal thread through hole (22), and at this time the chuck clamping bolt (4) cannot clamp the conical chuck (3), so that the pull wire (10) can move freely inside the conical chuck (3); at the same time, the length of the clamping component (7) is required to be less than the sum of the height of the sensor support (55) of the sensor fixing support (5) and the length of the sensor (101); Next, the tensioner is used to tighten the tensioner (10); the sensor (101) is installed on the sensor support (55) using countersunk bolts; the position of the clamp sleeve (2) is adjusted so that the free end of the sensor (101) abuts against the connecting fixing crossbar (6), and the clamp tightening bolt (4) is tightened to clamp the tensioner (10) tightly; then the tensioner is gradually released, and the tension on the tensioner is gradually transferred to the sensor (101). The pressure of the sensor (101) is measured, and the two sensors... The sum of the pressures of the device (101) is the preload of the tension wire (10). At this time, the preload may not be equal to the design preload. Therefore, it is necessary to simultaneously loosen or tighten the two limiting fixing nuts (8) installed on the U-shaped connecting main rod (1) so that the preload of the tension wire (10) is equal to the design preload of the tension wire (10). At the same time, before releasing the tension of the tension wire tensioner, check again that the length of the top tightening component (7) is less than the sum of the height of the sensor support (55) of the sensor fixing support (5) and the length of the sensor (101). Finally, when the pre-tension of the pull wire is equal to the design pre-tension of the pull wire, the pull wire (10) is gradually tightened again using the pull wire tensioner; when the tension measured by the sensor (101) is zero, the sensor fixing support (5) and the sensor (101) are removed; then the tightening member (7) is placed in the limiting groove (63) of the connecting fixing crossbar (6), and the telescopic rod (72) is rotated to extend the tightening member (7) so that it tightens the clamp sleeve (2) and the connecting fixing crossbar (6); the tension of the pull wire tensioner is gradually released again and the pull wire tensioner is removed. At this time, the tension on the pull wire tensioner is gradually transferred to the tightening member (7).

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