A transmission line tower strength detection device

Abstract

The present invention relates to the technical field of strength detection devices, and proposes a strength detection device for transmission line towers. When performing detection operations, it does not form a hoisting and clamping on the detection target part, and has good operation convenience. On the premise of ensuring the basic strength detection operation function, it can realize the detection of the deformation conditions at different positions of the detection target part, improve the detection coverage of the detection target part, introduce the elastic compensation function of the steel cable, and make the detection data more accurate. It includes a steel cable, a detection target part, a detection system and a force application system. The force application system includes a main abutting frame, an electric telescopic rod is installed at the top of the main abutting frame, a driving block is fixedly connected to the telescopic rod of the electric telescopic rod, a driving frame is slidably connected outside the driving block, and a pressure sensor is installed between the driving frame and the driving block. A support compensation structure is installed in the driving frame, the support compensation structure is matched with the steel cable, hook structures are installed at both ends of the steel cable, and both hook structures are matched with the detection target part.

Description

Technical Field

[0001] The present invention relates to the technical field of strength detection devices, and particularly to a strength detection device for transmission line towers. Background Art

[0002] As is well known, transmission line towers are important structures that support overhead transmission line conductors and overhead ground wires. Their main function is to ensure that these lines still meet the requirements for the distance from adjacent ground obstacles at the maximum sag or maximum wind deflection. A strength detection device for transmission line towers is an auxiliary device used to detect the structural strength of transmission line towers.

[0003] After retrieval, a patent with the Chinese patent publication number CN208653924U discloses a strength detection device for transmission line towers, which is generally described as including a detection platform, a steel cable, an electronic tensiometer, a sliding mechanism arranged on the detection platform, a clamping mechanism arranged on one side of the detection platform, a pulling mechanism arranged on the side of the detection platform, and a support mechanism arranged on the detection platform. The sliding mechanism includes a slide rail and a slide table, the slide table is slidably connected to the slide rail, and a fixed pulley is arranged on the slide table. The pulling mechanism includes an electric pulling machine. One end of the steel cable is connected to the transmission line tower, the steel cable bypasses the fixed pulley, and the other end of the steel cable is connected to the electric pulling machine. An electronic tensiometer is arranged on the steel cable. The support mechanism includes vertical rods symmetrically arranged on both sides of the slide rail and a support belt. A buckle is arranged at the end of the vertical rod, and both ends of the support belt are respectively connected to the buckles on the vertical rods on both sides. When in use, after hoisting one end of the transmission line tower onto the base, the electric telescopic rod is started, and the rod body of the electric telescopic rod drives the arc-shaped pressing plate to move downward to press and fix the transmission line tower, and then corresponding detection is formed. A patent with the Chinese patent publication number CN111721634A discloses a strength detection device for bicycle axles, which is generally described as including a base, a bottom shell fixedly connected to the top outer wall of the base, and a fixing plate fixedly connected to one side of the top outer wall of the bottom shell. The inner wall of the side surface of the fixing plate is connected with a fixed turntable through a bearing. Both ends of the other side of the top outer wall of the base are provided with chutes, and the side inner walls of the chutes are slidably connected with sliders. The top outer walls of the two sliders are fixedly connected with the same movable plate. When in use, it can make the wheel axle receive different pressures during the detection process.

[0004] Although the above-mentioned previous prior art solution can achieve the detection of the strength of the transmission line tower, during its detection process, it is necessary to lift and clamp the transmission line tower. Analyzing the actual situation, as a slender structure, it is quite difficult to clamp the transmission line tower in a suspended state. Moreover, during the actual detection process, when the steel cable is under tension, it is inevitable that the steel cable will elastically elongate itself, which will also introduce errors into the detection data, resulting in relatively large detection errors. For the latter, the target detection object is a bicycle axle rod. Obviously, the structural characteristics of the bicycle axle rod are quite different from those of the transmission line tower. Therefore, the adaptability of applying its solution to the detection of the transmission line tower needs to be further improved. Summary of the Invention

[0005] In view of the deficiencies of the prior art, the present invention provides a device for detecting the strength of a transmission line tower. During its detection operation, it does not need to hoist and clamp the detection target component, and has good operation convenience. On the premise of ensuring the basic strength detection operation function, it can realize the detection of the deformation conditions at different positions of the detection target component, improve the detection coverage of the detection target component, introduce the elastic compensation function of the steel cable, make the detection data more accurate, and ensure the detection quality.

[0006] To achieve the above object, the present invention provides the following technical solution: A device for detecting the strength of a transmission line tower, including a steel cable and a detection target component, further including a detection system and a force application system. The force application system includes a main abutting frame. An electric telescopic rod is installed at the top of the main abutting frame. A driving block is fixedly connected to the telescopic rod of the electric telescopic rod. A driving frame is slidably connected outside the driving block, and a pressure sensor is installed between the driving frame and the driving block. A support compensation structure is installed inside the driving frame, and the support compensation structure matches the steel cable. Hook structures are installed at both ends of the steel cable, and both hook structures match the detection target component. The detection system includes a telescopic arm, a servo motor, and a detection frame. The servo motor is installed at the right end of the main abutting frame, and a sliding opening is formed inside the main abutting frame. The telescopic arm is slidably connected in the sliding opening. The servo motor is used to drive the movement of the telescopic arm. The detection frame is fixedly connected to the telescopic arm. A lifting frame is slidably connected inside the detection frame. An elastic vertical spring is fixedly connected to the top of the lifting frame, and the top of the elastic vertical spring is fixedly connected to the detection frame. A grating ruler is installed inside the detection frame, and the reading head of the grating ruler is connected to the lifting frame.

[0007] Preferably, the support compensation structure includes a sliding bracket which is slidably connected within the driving bracket. A support spring is fixedly connected within the driving bracket, and the top end of the support spring is fixedly connected to the bottom end of the sliding bracket. Two opposing moving brackets are slidably connected within the sliding bracket, and the two opposing moving brackets are slidably connected to each other. A reset spring is fixedly connected between the two opposing moving brackets. A follower wheel assembly is sleeved on the two opposing moving brackets, and the steel cable is wound around the follower wheel assembly. Driving rods are fixedly connected to the ends of the two opposing moving brackets away from each other. Driving slopes are provided at the left and right ends of the sliding bracket, and the two driving slopes respectively match the two driving rods.

[0008] Preferably, the follower wheel assembly includes a plurality of grooved wheel blocks. Each of the plurality of grooved wheel blocks is provided with a first spring groove and a second spring groove. Connecting springs are fixedly connected within the plurality of first spring grooves, and the connecting springs are respectively fixedly connected within the plurality of second spring grooves. A first tapered rotating ring and a second tapered rotating ring are respectively rotatably connected to the two opposing moving brackets. First tapered slopes matching the first tapered rotating ring are provided on the plurality of grooved wheel blocks, and second tapered slopes matching the second tapered rotating ring are provided on the plurality of grooved wheel blocks.

[0009] Preferably, two circular rod segments and two circular through-holes are provided on each of the two opposing moving brackets, and the four circular rod segments respectively pass through the four circular through-holes.

[0010] Preferably, each of the two hook structures includes a rotating connecting bracket, a first hook bracket, and a second hook bracket. First brackets and second brackets are respectively rotatably connected to the two ends of the two rotating connecting brackets. First rotating brackets are rotatably connected to the two first brackets, and the first rotating brackets are respectively rotatably connected to the two first hook brackets. Second rotating brackets are rotatably connected to the two second brackets, and the second rotating brackets are respectively rotatably connected to the two second hook brackets. The two first hook brackets and the two second hook brackets are all connected to the steel cable.

[0011] Preferably, first sub-cables and second sub-cables are fixedly connected to both ends of the steel cable. Middle through-holes are provided on the two rotating connecting brackets. The two first sub-cables respectively pass through the two middle through-holes, and the two second sub-cables also respectively pass through the two middle through-holes. The two first sub-cables are respectively fixedly connected to the two first hook brackets, and the two second sub-cables are respectively fixedly connected to the two second hook brackets.

[0012] Preferably, first rope passing grooves are provided at the top ends of the two first rotating brackets, and the two first rope passing grooves respectively match the two first sub-cables. Second rope passing grooves are provided at the top ends of the two second rotating brackets, and the two second rope passing grooves respectively match the two second sub-cables.

[0013] Preferably, two threaded holes are formed in the main pressing frame, the thread directions in the two threaded holes are opposite, threaded rods are screwed in the two threaded holes, supporting seats are hinged to the bottom ends of the two threaded rods, the two threaded rods are respectively slidably connected with a main driving cylinder and an auxiliary driving cylinder, the main driving cylinder and the auxiliary driving cylinder are both rotatably connected in the main pressing frame, synchronous wheels are fixedly connected to the main driving cylinder and the auxiliary driving cylinder, a synchronous belt is drivingly connected between the two synchronous wheels, and a driving auxiliary block is fixedly connected to the main driving cylinder.

[0014] Preferably, a hand-held protective frame is fixedly connected to the right end of the main pressing frame, the hand-held protective frame forms a surrounding protection for the servo motor, two protective half plates are fixedly connected to the top end of the main pressing frame, the two protective half plates jointly form a shielding protection for the transmission structure between the synchronous belt and the two synchronous wheels, and a telescopic protective sleeve is fixedly connected to the rear end of the main pressing frame, and the telescopic arm is inserted into the telescopic protective sleeve.

[0015] Preferably, an installation wheel groove is formed at the bottom end of the lifting frame, a rotating wheel is rotatably connected in the installation wheel groove, and the wheel surface of the rotating wheel matches the detected target part.

[0016] Compared with the prior art, the present invention provides a transmission line tower strength detection device, which has the following beneficial effects:

[0017] (1) In the present invention, through the design of the force application system, a functional structure for applying a lateral traction force is formed in cooperation with the detected target part, and a lateral bending drive can be formed in cooperation with the detected target part, which is convenient for the subsequent strength detection of the detected target part. During the detection operation, it is not necessary to form a hoisting and clamping for the detected target part, and the operation convenience is better.

[0018] (2) In the present invention, through the design of the detection system, the bending degree detection of the detected target part under the stressed state is formed in cooperation with the detected target part, and then the strength detection of the detected target part is formed. On the premise of ensuring the basic strength detection operation function, the deformation condition detection of different positions of the detected target part can be realized, and the detection coverage of the detected target part is improved.

[0019] (3) In the present invention, through the design of the support compensation structure, the corresponding introduction length compensation for the elastic elongation generated by the steel cable under the stressed state is matched, so that the traction distance change of the steel cable under different tensile states is small, and the elastic compensation function of the steel cable is introduced, making the detection data more accurate and ensuring the detection quality.

[0020] (4) In the present invention, through the design of the hooking structure, the connection positioning of both ends of the steel cable relative to the detected target part is realized, and finally it is convenient for the electric telescopic rod to apply force to the detected target part, which is more practical. Description of the Drawings

[0021] Figure 1 Schematic three-dimensional structure diagram of the whole of the present invention;

[0022] Figure 2 Of the present invention Figure 1 Schematic enlarged partial structure diagram at position A in the present invention;

[0023] Figure 3 Of the present invention Figure 1 Schematic enlarged partial structure diagram at position B in the present invention;

[0024] Figure 4 Of the present invention Figure 1 Schematic enlarged partial structure diagram at position C in the present invention;

[0025] Figure 5 Schematic three-dimensional structure diagram of the cooperation of the main pressing frame, telescopic arm and detection frame, etc. of the present invention;

[0026] Figure 6 Schematic three-dimensional structure diagram of the cooperation of the main pressing frame, electric telescopic rod and driving block, etc. of the present invention;

[0027] Figure 7 Schematic three-dimensional structure diagram of the partial cross-section of the cooperation of the main pressing frame, telescopic arm and servo motor, etc. of the present invention;

[0028] Figure 8 Schematic three-dimensional structure diagram of the partial cross-section of the cooperation of the main pressing frame, threaded rod and main driving cylinder, etc. of the present invention;

[0029] Figure 9 Schematic exploded three-dimensional structure diagram of the cooperation of the sliding bracket, opposing moving frame and driving rod, etc. of the present invention;

[0030] Figure 10 Schematic exploded three-dimensional structure diagram of the two opposing moving frames relative to each other of the present invention;

[0031] Figure 11 Schematic three-dimensional structure diagram of the partial cross-section of the cooperation of the telescopic arm, detection frame and lifting frame, etc. of the present invention;

[0032] Figure 12 Schematic exploded three-dimensional structure diagram of the cooperation of the threaded rod, support seat and auxiliary driving cylinder of the present invention;

[0033] Figure 13 Schematic structure diagram of a structure in which two hook structures are relatively clamped of the present invention;

[0034] Figure 14 Schematic bottom-up three-dimensional structure diagram of the whole of the present invention;

[0035] Figure 15 Schematic bottom-up three-dimensional structure diagram of the cooperation of the main pressing frame, driving frame and detection frame, etc. of the present invention;

[0036] Figure 16 Another schematic diagram of the relative clamping principle of the two hooking structures of the present invention;

[0037] Figure 17 Another schematic diagram of the relative clamping of the two hooking structures of the present invention;

[0038] Figure 18 An upward-looking three-dimensional structure schematic diagram of the cooperation of the main pressing frame, support seat and main driving cylinder, etc. of the present invention;

[0039] Figure 19 An exploded upward-looking three-dimensional structure schematic diagram of the cooperation of the threaded rod, support seat and auxiliary driving cylinder of the present invention.

[0040] In the figure: 1. Steel cable; 2. Detection target part; 3. Main pressing frame; 4. Electric telescopic rod; 5. Driving block; 6. Driving frame; 7. Pressure sensor; 8. Telescopic arm; 9. Servo motor; 10. Detection frame; 11. Sliding port; 12. Lifting frame; 13. Elastic vertical spring; 14. Grating ruler; 15. Reading head; 16. Sliding bracket; 17. Support spring; 18. Opposing moving frame; 19. Reset spring; 20. Driving rod; 21. Driving slope; 22. Grooved wheel block; 23. First spring groove; 24. Second spring groove; 25. Connecting spring; 26. First conical rotating ring; 27. Second conical rotating ring; 28. First conical slope; 29. Second conical slope; 30. Round rod section; 31. Round through hole; 32. Rotating connecting frame; 33. First hook frame; 34. Second hook frame; 35. First bracket; 36. Second bracket; 37. First rotating frame; 38. Second rotating frame; 39. First cable branch; 40. Second cable branch; 41. Middle through hole; 42. First rope passing groove; 43. Second rope passing groove; 44. Threaded hole; 45. Threaded rod; 46. Support seat; 47. Main driving cylinder; 48. Auxiliary driving cylinder; 49. Synchronous pulley; 50. Synchronous belt; 51. Driving auxiliary block; 52. Handheld protective frame; 53. Protective half plate; 54. Telescopic protective sleeve; 55. Installation wheel groove; 56. Rotating wheel. Specific embodiments

[0041] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0042] Embodiment, please refer to Figures 1 - 19, A transmission line tower strength detection device, including a steel cable 1 and a detection target part 2, further including a detection system and a force application system. The force application system includes a main pressing frame 3. An electric telescopic rod 4 is installed at the top of the main pressing frame 3. A driving block 5 is fixedly connected to the telescopic rod of the electric telescopic rod 4. A driving frame 6 is slidably connected outside the driving block 5, and a pressure sensor 7 is installed between the driving frame 6 and the driving block 5. Through the design of the force application system, a functional structure for applying a lateral traction force is formed in cooperation with the detection target part 2, which can form a lateral bending drive in cooperation with the detection target part 2, facilitating the subsequent strength detection of the detection target part 2. During the detection operation, there is no need to form a hoisting and clamping on the detection target part 2, and the operation convenience is better. A support compensation structure is installed inside the driving frame 6, and the support compensation structure is matched with the steel cable 1. The support compensation structure includes a sliding support frame 16. The sliding support frame 16 is slidably connected inside the driving frame 6. A support spring 17 is fixedly connected inside the driving frame 6. The top of the support spring 17 is fixedly connected to the bottom of the sliding support frame 16. Two moving frames 18 are slidably connected inside the sliding support frame 16. The two moving frames 18 are slidably connected to each other. A reset spring 19 is fixedly connected between the two moving frames 18. A follower wheel assembly is sleeved on the two moving frames 18. The steel cable 1 is wound around the follower wheel assembly. Driving rods 20 are fixedly connected to the ends of the two moving frames 18 away from each other. Driving slopes 21 are provided at the left and right ends of the sliding support frame 16. The two driving slopes 21 are respectively matched with the two driving rods 20. The follower wheel assembly includes a plurality of grooved wheel blocks 22. A first spring groove 23 and a second spring groove 24 are opened in each of the plurality of grooved wheel blocks 22. Connecting springs 25 are fixedly connected in the plurality of first spring grooves 23. The plurality of connecting springs 25 are respectively fixedly connected in the plurality of second spring grooves 24. A first conical rotating ring 26 and a second conical rotating ring 27 are respectively rotatably connected to the two moving frames 18. A first conical slope 28 matched with the first conical rotating ring 26 is provided on each of the plurality of grooved wheel blocks 22. A second conical slope 29 matched with the second conical rotating ring 27 is provided on each of the plurality of grooved wheel blocks 22. Through the design of the support compensation structure, corresponding introduction length compensation for the elastic elongation generated by the steel cable 1 under the stressed state is provided, so that the traction distance change of the steel cable 1 under different tensile states is smaller, introducing the elastic compensation function of the steel cable 1, making the detection data more accurate and ensuring the detection quality. Two round rod segments 30 and two round through holes 31 are provided on each of the two moving frames 18. The four round rod segments 30 respectively pass through the four round through holes 31 to realize the relative sliding connection between the two moving frames 18 and the guidance of the sliding direction.

[0043] It should be further noted that hook - hanging structures are installed at both ends of the steel cable 1. Both hook - hanging structures are matched with the detection target part 2. Both hook - hanging structures include rotating connection frames 32, first hook frames 33 and second hook frames 34. At both ends of the two rotating connection frames 32, a first support 35 and a second support 36 are respectively rotationally connected. On both of the two first supports 35, a first rotating frame 37 is rotationally connected. The two first rotating frames 37 are respectively rotationally connected with the two first hook frames 33. On both of the two second supports 36, a second rotating frame 38 is rotationally connected. The two second rotating frames 38 are respectively rotationally connected with the two second hook frames 34. Both the two first hook frames 33 and the two second hook frames 34 are connected to the steel cable 1. Through the design of the hook - hanging structure, the connection and positioning of both ends of the steel cable 1 relative to the detection target part 2 are realized, and finally it is convenient for the electric telescopic rod 4 to apply force for detection relative to the detection target part 2, which is more practical. At both ends of the steel cable 1, a first sub - cable 39 and a second sub - cable 40 are fixedly connected respectively. Middle through - holes 41 are formed on both of the two rotating connection frames 32. The two first sub - cables 39 respectively pass through the two middle through - holes 41, and the two second sub - cables 40 also respectively pass through the two middle through - holes 41. The two first sub - cables 39 are respectively fixedly connected with the two first hook frames 33, and the two second sub - cables 40 are respectively fixedly connected with the two second hook frames 34. At the top of both of the two first rotating frames 37, first rope - passing grooves 42 are arranged. The two first rope - passing grooves 42 are respectively matched with the two first sub - cables 39. At the top of both of the two second rotating frames 38, second rope - passing grooves 43 are arranged. The two second rope - passing grooves 43 are respectively matched with the two second sub - cables 40, which is convenient for the respective support and guidance of the first sub - cable 39 and the second sub - cable 40. The detection system includes a telescopic arm 8, a servo - motor 9 and a detection frame 10. The servo - motor 9 is installed at the right end of the main pressing frame 3, and a sliding opening 11 is formed in the main pressing frame 3. The telescopic arm 8 is slidably connected in the sliding opening 11. A driving gear and a transmission rack are respectively installed on the servo - motor 9 and the telescopic arm 8. The driving gear and the transmission rack are in meshing transmission. The servo - motor 9 is used for driving the movement of the telescopic arm 8. At the right end of the main pressing frame 3, a hand - held protective frame 52 is fixedly connected. The hand - held protective frame 52 forms a surrounding protection for the servo - motor 9. The detection frame 10 is fixedly connected with the telescopic arm 8. A lifting frame 12 is slidably connected in the detection frame 10. At the top of the lifting frame 12, an elastic vertical spring 13 is fixedly connected. The top of the elastic vertical spring 13 is fixedly connected with the detection frame 10. A grating ruler 14 is installed in the detection frame 10. The reading head 15 of the grating ruler 14 is connected with the lifting frame 12. Through the design of the detection system, it is matched with the detection target part 2 to detect the bending degree under the stress state, and then to form the strength detection of the detection target part 2. On the premise of ensuring the basic strength detection operation function, it can realize the detection of the deformation conditions of different positions of the detection target part 2, improving the detection coverage of the detection target part 2. At the bottom end of the lifting frame 12, an installation wheel groove 55 is formed. A rotating wheel 56 is rotationally connected in the installation wheel groove 55. The wheel surface of the rotating wheel 56 is matched with the detection target part 2.

[0044] It should be further noted that two threaded holes 44 are provided in the main pressing frame 3. The thread directions in the two threaded holes 44 are opposite. Threaded rods 45 are threadedly connected in the two threaded holes 44 respectively. The bottom ends of the two threaded rods 45 are each hinged with a support seat 46. The two threaded rods 45 are respectively slidably connected with a main driving cylinder 47 and an auxiliary driving cylinder 48. The main driving cylinder 47 and the auxiliary driving cylinder 48 are each rotatably connected in the main pressing frame 3. Synchronous wheels 49 are fixedly connected to the main driving cylinder 47 and the auxiliary driving cylinder 48 respectively. A synchronous belt 50 is drivingly connected between the two synchronous wheels 49. A driving auxiliary block 51 is fixedly connected to the main driving cylinder 47. By rotating and adjusting the driving auxiliary block 51, the rotation drive of the main driving cylinder 47 can be realized. The rotation of the main driving cylinder 47 realizes the rotation drive of the synchronous wheel 49 connected thereto. Through the transmission of the synchronous belt 50, the two synchronous wheels 49 can realize synchronous rotation. The synchronous rotation of the two synchronous wheels 49 can realize the synchronous rotation of the main driving cylinder 47 and the auxiliary driving cylinder 48. The synchronous rotation of the main driving cylinder 47 and the auxiliary driving cylinder 48 can realize the synchronous rotation drive of the two threaded rods 45. Since the two threaded rods 45 are respectively threadedly connected in the two threaded holes 44 and the thread directions in the two threaded holes 44 are opposite, the synchronous rotation of the two threaded rods 45 will cause one threaded rod 45 to extend relative to the threaded hole 44 in which it is installed, while the other threaded rod 45 will retract relative to the threaded hole 44 in which it is installed. When the bottom end of the main pressing frame 3 forms a pressing against the detection target part 2, through the relative adjustment of the two threaded rods 45, the adjustment of the two support seats 46 can be realized, so as to realize the change of the relative support height of the two support seats 46 relative to the main pressing frame 3, and finally realize the adjustment of the bracket angle of the main pressing frame 3 relative to the detection target part 2, so that a relatively stable bracket angle is formed between the main pressing frame 3 and the detection target part 2. Two protective half plates 53 are fixedly connected to the top end of the main pressing frame 3. The two protective half plates 53 jointly form the shielding protection of the transmission structure between the synchronous belt 50 and the two synchronous wheels 49. A telescopic protective sleeve 54 is fixedly connected to the rear end of the main pressing frame 3. The telescopic arm 8 is inserted into the telescopic protective sleeve 54.

[0045] The electric telescopic rod 4, the pressure sensor 7, the servo motor 9 and the grating ruler 14 in this embodiment are all conventional devices well-known to those skilled in the art and purchased on the market. In the present invention, we only use them and do not improve their structures and functions. Their setting methods, installation methods and electrical connection methods can be debugged and operated by those skilled in the art as long as they follow the requirements of their user manuals, and will not be elaborated here.

[0046] In summary, the working principle of the transmission line tower strength detection device is as follows. When in use, first, the relative position of the transmission line tower strength detection device is adjusted relative to the placement location of the detection target member 2. The main abutting frame 3 is abutted against the detection target member 2. When the area on the detection target member 2 where the main abutting frame 3 abuts is a flat surface relatively parallel to the midline of the main abutting frame 3, the bottom of the main abutting frame 3 can be directly abutted against the detection target member 2. When the corresponding area on the detection target member 2 where the main abutting frame 3 is placed is other special surfaces such as an inclined plane, the relative adjustment of the two threaded rods 45 relative to the main abutting frame 3 is realized by rotating the driving auxiliary block 51, so that the relative position of the support seat 46 relative to the main abutting frame 3 is correspondingly adjusted, and finally the main abutting frame 3 has a relatively vertical attitude relative to the detection target member 2. Then, the two ends of the steel cable 1 are respectively connected to the detection target member 2 through the two hooking structures. After that, the electric telescopic rod 4 is started to push the driving frame 6 to move away from the detection target member 2. To facilitate the positioning and installation of the two hooking structures at the two ends of the detection target member 2 respectively, the steel cable 1 will be in a slack state. In the initial stage of the operation of the electric telescopic rod 4, to facilitate the relative position stability of the main abutting frame 3 and the detection target member 2, equipment with an auxiliary support positioning function can be added from the outside, or manual support measures can be taken until the steel cable 1 is tightened and in the state where the steel cable 1 is tightened and the main abutting frame 3 is further abutted against the detection target member 2, the entire force application system will enter a relatively stable state relative to the detection target member 2. After that, to ensure the detection safety, the operator should stay away from the detection target member 2 and maintain a certain safety distance from the detection target member 2.

[0047] Further, both the grating scale 14 and the pressure sensor 7 are equipped with quick-connect data heads. Therefore, the readings and controls of the pressure sensor 7 and the grating scale 14 can form external leads through the corresponding quick-connect data heads, facilitating the remote control by the operator and the reading of detection data. Then, continue to control the operation of the electric telescopic rod 4 to drive the driving block 5 away from the detection target 2 until the reading on the pressure sensor 7 enters the corresponding application range, which is the corresponding lateral pulling force applied by the steel cable 1 on the detection target 2. For the determination of the application range, multiple groups of ranges can be selected according to the actual situation to form corresponding detections respectively. And because the steel cable 1 will inevitably be stretched under the action of tension, when the driving frame 6 pushes the steel cable 1 to be tightened, the sliding bracket 16 will overcome the support spring 17 and move relative to the driving frame 6. And during this movement, due to the relative action between the driving slope 21 and the driving rod 20, the two opposing moving frames 18 will move relatively closer. Since the relative movement of the two opposing moving frames 18 will drive the first conical rotating ring 26 and the second conical rotating ring 27 to move correspondingly, the first conical rotating ring 26 and the second conical rotating ring 27 can also move relatively closer. Under the relative action between the first conical rotating ring 26 and the first conical slope 28 and the relative action between the second conical rotating ring 27 and the second conical slope 29, the adjacent two sheave blocks 22 will overcome the elastic force of the connecting spring 25 between the two sheave blocks 22 and move relatively away, finally expanding and adjusting the winding circle of the steel cable 1 by the multiple sheave blocks 22. The expansion of the winding circle occupies a longer length of the steel cable 1, so the compensation after the stretching of the steel cable 1 is formed, making the deviation of the traction distance of the steel cable 1 relatively small under the action of different magnitudes of forces when applying force to the detection target 2, ensuring the accuracy of subsequent detections. Then, control the electric telescopic rod 4 to enter the stop state. At this time, the detection target 2 also enters a stable bending state. Control the servo motor 9 to operate to realize the position movement of the telescopic arm 8 relative to the sliding port 11, and then realize the relative position change of the detection frame 10 relative to the detection target 2. During the position change of the detection part, the rotating wheel 56 will roll relative to the detection target 2, using rolling friction to replace sliding friction, reducing the friction loss of the rotating wheel 56 while realizing the position change of the lifting frame 12 relative to the detection frame 10. Since the two ends of the detection target 2 are subjected to the traction force, the surface of the detection target 2 opposite to the main pressing frame 3 will present a posture where the front and rear ends are warped relative to the middle area. Therefore, when the telescopic arm 8 is adjusted forward relative to the detection target 2, the lifting frame 12 will show a gradually increasing trend relative to the detection frame 10. Since the reading head 15 will also change its position synchronously with the lifting frame 12, the reading head 15 changes its position relative to the grating scale 14, and then the data is read and quantified. Along with the increase in the moving amplitude of the telescopic arm 8, the bending deformation amount of the detection target 2 at different length positions can be detected correspondingly, and finally the strength detection of the detection target 2 at different length positions is achieved.

[0048] Furthermore, when both ends of the detection target member 2 are rod-shaped structures, the hooking states of the two hooking structures are as shown in the attached Figure 1 figure. At this time, the connection surfaces between the first sub-cable 39 and the first hook frame 33 and between the second sub-cable 40 and the second hook frame 34 present a relative form. In this form, when a pulling force is applied to the first sub-cable 39 and the second sub-cable 40, there is a tendency for the first rotating frame 37 and the second rotating frame 38 within the same hooking structure to rotate relatively closer to each other. In this way, it can ensure that the first hook frame 33 and the second hook frame 34 are tightly held against the detection target member 2, and the crossbars on the first hook frame 33 and the crossbars on the second hook frame 34 within the same hooking structure present a relatively misaligned posture. In this way, the crossbars on the mutually cooperating first hook frame 33 and the crossbars on the second hook frame 34 can achieve relative left-right cross-overlap, ensuring the holding effect on the detection target member 2. To facilitate the insertion of the lowermost crossbar of the first hook frame 33 and the lowermost crossbar of the second frame structure into the bottom of the detection target member 2, when the placement posture of the detection target member 2 does not have an insertable gap, the detection target member 2 can be pre-lifted or pried up using a crowbar. At the same time, anti-slip patterns are provided on the crossbars to improve the relative position stability after the crossbars come into contact with the detection target member 2. When both ends of the detection target member 2 have holes and the width of the detection target member 2 is relatively large, making it inconvenient for the mutually cooperating first hook frame 33 and second hook frame 34 to form a tight hold, by rotating and adjusting the first hook frame 33 relative to the first rotating frame 37 and rotating and adjusting the second hook frame 34 relative to the second rotating frame 38, the corresponding first sub-cable 39 and second sub-cable 40 are made to enter the states shown in the attached Figure 16 and the attached Figure 17 figure. At this time, the connection surfaces between the first sub-cable 39 and the first hook frame 33 and between the second sub-cable 40 and the second hook frame 34 present an opposite form, and the first sub-cable 39 is guided into the first rope-passing groove 42, and the second sub-cable 40 is guided into the second rope-passing groove 43. In this form, when a pulling force is applied to the first sub-cable 39 and the second sub-cable 40, there is a tendency for the first rotating frame 37 and the second rotating frame 38 within the same hooking structure to rotate relatively away from each other. In this way, it can ensure that the first hook frame 33 and the second hook frame 34 form an internal support and hooking on the holes of the detection target member 2, and finally, relative positioning of both ends of the steel cable 1 with respect to both ends of the detection target member 2 is achieved to ensure the realization of subsequent detection operations.

[0049] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A transmission line tower strength detection device, comprising a steel cable (1) and a detection target member (2), characterized in that, It also includes a detection system and a force application system. The force application system includes a main pressing frame (3). An electric telescopic rod (4) is installed at the top of the main pressing frame (3). A driving block (5) is fixedly connected to the telescopic rod of the electric telescopic rod (4). A driving frame (6) is slidably connected to the outside of the driving block (5), and a pressure sensor (7) is installed between the driving frame (6) and the driving block (5). A support compensation structure is installed in the driving frame (6), and the support compensation structure matches the steel cable (1). Hook structures are installed at both ends of the steel cable (1), and both hook structures match the detection target (2). The detection system includes a telescopic arm (8), a servo motor (9), and a detection frame (10). The servo motor (9) is installed at the right end of the main pressing frame (3), and a sliding port (11) is formed in the main pressing frame (3). The telescopic arm (8) is slidably connected in the sliding port (11). The servo motor (9) is used to drive the movement of the telescopic arm (8). The detection frame (10) is fixedly connected to the telescopic arm (8). A lifting frame (12) is slidably connected in the detection frame (10). The top of the lifting frame (12) is fixedly connected to an elastic vertical spring (13). The top of the elastic vertical spring (13) is fixedly connected to the detection frame (10). A grating ruler (14) is installed in the detection frame (10), and the reading head (15) of the grating ruler (14) is connected to the lifting frame (12). The support compensation structure includes a sliding support frame (16). The sliding support frame (16) is slidably connected in the driving frame (6). A support spring (17) is fixedly connected in the driving frame (6). The top of the support spring (17) is fixedly connected to the bottom of the sliding support frame (16). Two opposing moving frames (18) are slidably connected in the sliding support frame (16). The two opposing moving frames (18) are slidably connected to each other. A reset spring (19) is fixedly connected between the two opposing moving frames (18). A follower wheel assembly is sleeved on the two opposing moving frames (18). The steel cable (1) is wound around the follower wheel assembly. Driving rods (20) are fixedly connected to the ends of the two opposing moving frames (18) that are away from each other. Driving slopes (21) are provided at the left and right ends of the sliding support frame (16), and the two driving slopes (21) respectively match the two driving rods (20).

2. The strength detection device for a transmission line tower according to claim 1, wherein, The follower wheel assembly includes a plurality of grooved wheel blocks (22). Each of the plurality of grooved wheel blocks (22) is provided with a first spring groove (23) and a second spring groove (24). Connecting springs (25) are fixedly connected in the plurality of first spring grooves (23), and the connecting springs (25) are respectively fixedly connected in the plurality of second spring grooves (24). A first tapered rotating ring (26) and a second tapered rotating ring (27) are respectively rotatably connected to the two opposing moving frames (18). First tapered slopes (28) that match the first tapered rotating ring (26) are provided on the plurality of grooved wheel blocks (22), and second tapered slopes (29) that match the second tapered rotating ring (27) are provided on the plurality of grooved wheel blocks (22).

3. The strength detection device for a transmission line tower according to claim 2, characterized in that, Two of the opposite moving frames (18) are each provided with two round rod segments (30) and two round through holes (31), and the four round rod segments (30) respectively pass through the four round through holes (31).

4. The strength detection device for a transmission line tower according to claim 3, characterized in that, Each of the two hooking structures includes a rotating connecting frame (32), a first hook frame (33) and a second hook frame (34). At both ends of the two rotating connecting frames (32), a first support (35) and a second support (36) are respectively rotatably connected. A first rotating frame (37) is rotatably connected to each of the two first supports (35), and the two first rotating frames (37) are respectively rotatably connected to the two first hook frames (33). A second rotating frame (38) is rotatably connected to each of the two second supports (36), and the two second rotating frames (38) are respectively rotatably connected to the two second hook frames (34). The two first hook frames (33) and the two second hook frames (34) are both connected to the steel cable (1).

5. The strength detection device for a transmission line tower according to claim 4, wherein, Both ends of the steel cable (1) are fixedly connected with a first sub-cable (39) and a second sub-cable (40). Middle through holes (41) are formed in the two rotating connecting frames (32). The two first sub-cables (39) respectively pass through the two middle through holes (41), and the two second sub-cables (40) also respectively pass through the two middle through holes (41). The two first sub-cables (39) are respectively fixedly connected to the two first hook frames (33), and the two second sub-cables (40) are respectively fixedly connected to the two second hook frames (34).

6. The strength detection device for a transmission line tower according to claim 5, characterized in that, At the top of each of the two first rotating frames (37), a first rope passing groove (42) is provided. The two first rope passing grooves (42) respectively match the two first sub-cables (39). At the top of each of the two second rotating frames (38), a second rope passing groove (43) is provided. The two second rope passing grooves (43) respectively match the two second sub-cables (40).

7. The strength detection device for a transmission line tower according to claim 6, characterized in that, Two threaded holes (44) are formed in the main pressing frame (3). The threads in the two threaded holes (44) have opposite directions. Threaded rods (45) are threadedly connected in the two threaded holes (44). At the bottom ends of the two threaded rods (45), support seats (46) are respectively hinged. The two threaded rods (45) are respectively slidably connected to a main driving cylinder (47) and an auxiliary driving cylinder (48). The main driving cylinder (47) and the auxiliary driving cylinder (48) are both rotatably connected in the main pressing frame (3). Synchronous wheels (49) are fixedly connected to the main driving cylinder (47) and the auxiliary driving cylinder (48). A synchronous belt (50) is drivingly connected between the two synchronous wheels (49). A driving auxiliary block (51) is fixedly connected to the main driving cylinder (47).

8. The strength detection device for a transmission line tower according to claim 7, characterized in that, A hand-held protective frame (52) is fixedly connected to the right end of the main pressing frame (3). The hand-held protective frame (52) forms a surrounding protection for the servo motor (9). Two protective half plates (53) are fixedly connected to the top end of the main pressing frame (3). The two protective half plates (53) jointly form a shielding protection for the transmission structure between the synchronous belt (50) and the two synchronous wheels (49). A telescopic protective sleeve (54) is fixedly connected to the rear end of the main pressing frame (3). The telescopic arm (8) is inserted into the telescopic protective sleeve (54).

9. The strength detection device for a transmission line tower according to claim 8, characterized in that, The bottom end of the lifting frame (12) is provided with a mounting wheel groove (55), a rotating wheel (56) is rotatably connected in the mounting wheel groove (55), and the wheel surface of the rotating wheel (56) matches the detected target part (2).

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