Power transmission line tower strength detection device

Abstract

The invention relates to the technical field of strength detection devices, and provides a power transmission line tower strength detection device which does not need to hoist and clamp a detection target piece during detection operation, is relatively good in operation convenience, can realize deformation condition detection of different positions of the detection target piece on the premise of ensuring a basic strength detection operation function, and improves the detection efficiency. The device comprises a steel cable, a detection target piece, a detection system and a force application system, the force application system comprises a main abutting frame, the top end of the main abutting frame is provided with an electric telescopic rod, a telescopic rod of the electric telescopic rod is fixedly connected with a driving block, and the driving block is fixedly connected with the steel cable. A driving frame is slidably connected to the outside of the driving block, a pressure sensor is installed between the driving frame and the driving block, a supporting compensation structure is installed in the driving frame and matched with the steel cable, hook structures are installed at the two ends of the steel cable, and the two hook structures are matched with a detection target piece.

Description

Technical Field

[0001] The invention relates to the technical field of strength detection devices, and in particular to a transmission line tower strength detection device. Background Art

[0002] As we all know, 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 can still meet the requirements for the distance to adjacent ground obstacles at maximum sag or maximum wind deviation. The transmission line tower strength detection device is an auxiliary device used to detect the structural strength of transmission line towers.

[0003] After searching, the Chinese patent publication number CN208653924U discloses a transmission line tower strength detection device, which is roughly described as including a detection platform, a steel cable, an electronic tensile gauge, 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 supporting 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, 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 is passed around the fixed pulley, and the other end of the steel cable is connected to the electric pulling machine, an electronic tensile gauge is arranged on the steel cable, and the supporting mechanism includes vertical poles and support belts symmetrically arranged on both sides of the slide rail, and the ends of the vertical poles are provided with lock buckles, and the two ends of the support belt are respectively connected to the vertical poles on both sides. The locking connection is used. When in use, after one end of the transmission line tower is hoisted onto the base, the electric telescopic rod is started, and the rod body of the electric telescopic rod drives the arc-shaped pressure plate to move downward to press and fix the transmission line tower, and then a corresponding detection is formed. The Chinese patent announcement number CN111721634A discloses a bicycle axle strength detection device, which is roughly described as including a base, a top outer wall of the base is fixedly connected to a bottom shell, and a fixed plate is fixedly connected to one side of the top outer wall of the bottom shell, and a fixed turntable is connected to the side inner wall of the fixed plate through a bearing, and sliding grooves are opened at both ends of the other side of the top outer wall of the base, and a slider is slidably connected to the side inner wall of the sliding groove, and the top outer walls of the two sliders are fixedly connected to the same movable plate. When in use, the wheel axle can be subjected to different pressures during the detection process.

[0004] Although the above-mentioned former prior art solution can realize the pole tower strength detection, the transmission line pole tower needs to be lifted and clamped during the detection process. Combined with the actual situation, the transmission line pole tower is a slender structure, and it is difficult to clamp it in the air. In addition, in the actual detection process, when the steel cable is under tension, it will inevitably produce its own elastic elongation, which will also cause the introduction of errors in the detection data, resulting in a large detection error. The latter's target detection object is a bicycle axle. Obviously, the structural characteristics of the bicycle axle and the transmission line pole tower are quite different. Therefore, the adaptability of the solution to the detection of transmission line pole towers needs to be further improved. Summary of the invention

[0005] In view of the shortcomings of the prior art, the present invention provides a transmission line tower strength detection device, which does not require the detection target part to be hoisted and clamped during the detection operation, and has good operation convenience. Under the premise of ensuring the basic strength detection operation function, it can realize the deformation detection of 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, make the detection data more accurate, and ensure the detection quality.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a transmission line tower strength detection device, comprising a steel cable and a detection target part, and also comprising a detection system and a force application system, wherein the force application system comprises a main abutting frame, an electric telescopic rod is installed on 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 to the outside of 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 matches the steel cable, and hook structures are installed at both ends of the steel cable. The hook structures are matched with the detection target parts. 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 clamping frame, and a sliding opening is opened in the main clamping frame. The telescopic arm is slidably connected in the sliding opening. The servo motor is used for driving the movement of the telescopic arm. The detection frame is fixedly connected to the telescopic arm, and a lifting frame is slidably connected in the detection frame. The top end of the lifting frame is fixedly connected to an elastic vertical spring, and the top end of the elastic vertical spring is fixedly connected to the detection frame. A grating ruler is installed in 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 to the driving bracket, and a support spring is fixedly connected to the driving bracket, the top of the support spring is fixedly connected to the bottom of the sliding bracket, and two opposing moving frames are slidably connected to the sliding bracket, the two opposing moving frames are slidably connected to each other, a reset spring is fixedly connected between the two opposing moving frames, and the two opposing moving frames are provided with a follower wheel assembly, the steel cable is wound around the follower wheel assembly, and the ends of the two opposing moving frames away from each other are fixedly connected to a driving rod, and driving slopes are provided on the left and right ends of the sliding bracket, and the two driving slopes are respectively matched with the two driving rods.

[0008] Preferably, the follower wheel assembly includes a plurality of sheave blocks, each of which is provided with a first spring groove and a second spring groove, each of which is fixedly connected with a connecting spring, each of which is fixedly connected with the second spring grooves, respectively, and the two opposing shifting frames are respectively rotatably connected with a first cone rotating ring and a second cone rotating ring, each of which is provided with a first cone slope surface matching the first cone rotating ring, and each of which is provided with a second cone slope surface matching the second cone rotating ring.

[0009] Preferably, two round rod segments and two round through holes are provided on each of the two opposing shifting frames, and the four round rod segments pass through the four round through holes respectively.

[0010] Preferably, the two hook structures each include a rotating frame, a first hook frame and a second hook frame, the two ends of the two rotating frames are respectively rotatably connected with the first bracket and the second bracket, the two first brackets are rotatably connected with the first rotating frame, the two first rotating frames are respectively rotatably connected with the two first hook frames, the two second brackets are rotatably connected with the second rotating frames, the two second rotating frames are respectively rotatably connected with the two second hook frames, and the two first hook frames and the two second hook frames are both connected to the steel cable.

[0011] Preferably, both ends of the steel cable are fixedly connected with a first branch cable and a second branch cable, and a middle through hole is opened on the two rotating frames. The two first branch cables pass through the two middle through holes respectively, and the two second branch cables also pass through the two middle through holes respectively. The two first branch cables are fixedly connected to the two first hook racks respectively, and the two second branch cables are fixedly connected to the two second hook racks respectively.

[0012] Preferably, the top ends of the two first rotating frames are each provided with a first rope threading groove, which are matched with the two first branch cables respectively, and the top ends of the two second rotating frames are each provided with a second rope threading groove, which are matched with the two second branch cables respectively.

[0013] Preferably, two threaded holes are provided in the main clamping frame, the threads in the two threaded holes are in opposite directions, threaded rods are threadedly connected in the two threaded holes, the bottom ends of the two threaded rods are hinged with support seats, the two threaded rods are respectively slidably connected to the main driving cylinder and the auxiliary driving cylinder, the main driving cylinder and the auxiliary driving cylinder are rotatably connected in the main clamping frame, the main driving cylinder and the auxiliary driving cylinder are fixedly connected with synchronous wheels, the two synchronous wheels are transmission-connected with a synchronous belt, and the main driving cylinder is fixedly connected with a driving auxiliary block.

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

[0015] Preferably, a mounting wheel groove is provided at the bottom end of the lifting frame, a rotating wheel is rotatably connected in the mounting wheel groove, and a wheel surface of the rotating wheel matches the detection 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: (1) In the present invention, through the design of the force application system, the functional structure of the lateral traction force application is formed with the matching detection target part, which can form a lateral bending drive with the matching detection target part, so as to facilitate the subsequent strength detection of the detection target part. During the detection operation, there is no need to hoist and clamp the detection target part, and the operation convenience is good.

[0017] (2) In the present invention, through the design of the detection system, the bending degree of the detection target part under the stress state is detected, and then the strength of the detection target part is detected. Under the premise of ensuring the basic strength detection operation function, the deformation of the detection target part at different positions can be detected, thereby improving the detection coverage of the detection target part.

[0018] (3) In the present invention, through the design of the supporting compensation structure, the elastic elongation generated by the matching steel cable under the stress state is introduced to compensate for the length, so that the traction distance of the steel cable under different tension states changes less, and the elastic compensation function of the steel cable is introduced to make the detection data more accurate and ensure the detection quality.

[0019] (4) In the present invention, the hook structure is designed to realize the connection and positioning of the two ends of the steel cable relative to the detection target part, which ultimately facilitates the detection force application of the electric telescopic rod relative to the detection target part, and is more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1It is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 For the present invention Figure 1 A schematic diagram of the local enlarged structure at point A in the middle; Figure 3 For the present invention Figure 1 A schematic diagram of the local enlarged structure at B in the middle; Figure 4 For the present invention Figure 1 A schematic diagram of the local enlarged structure at C in the middle; Figure 5 It is a schematic diagram of the three-dimensional structure of the main abutting frame, telescopic arm and detection frame of the present invention; Figure 6 It is a schematic diagram of the three-dimensional structure of the main abutting frame, the electric telescopic rod and the driving block of the present invention; Figure 7 It is a partially cutaway three-dimensional structural schematic diagram of the cooperation of the main abutment frame, telescopic arm and servo motor of the present invention; Figure 8 It is a partially cutaway three-dimensional structural schematic diagram of the cooperation of the main abutment frame, the threaded rod and the main driving cylinder of the present invention; Fig. 9 It is a schematic diagram of an exploded three-dimensional structure of the slide bracket, the shifting frame and the driving rod of the present invention; Fig.10 It is a schematic diagram of a three-dimensional structure of two relatively decomposed pairs of shifting frames of the present invention; Fig.11 It is a partially cutaway three-dimensional structural schematic diagram of the telescopic arm, the detection frame and the lifting frame of the present invention; Fig.12 It is a schematic diagram of the exploded three-dimensional structure of the threaded rod, the support seat and the auxiliary driving cylinder of the present invention; Fig.13 A schematic diagram of a structure in which two hook structures of the present invention are clamped relative to each other; Fig.14 It is a schematic diagram of the three-dimensional structure of the present invention as a whole when viewed from above; Fig.15 It is a bottom-up three-dimensional structural schematic diagram of the main abutting frame, the driving frame and the detection frame of the present invention; Fig.16 It is another schematic diagram of the principle structure of two hook structures clamping each other relative to each other in the present invention; Fig.17 Another schematic diagram of the structure of two hook structures clamped relative to each other in the present invention; Fig.18 It is a bottom-up three-dimensional structural schematic diagram of the main abutment frame, the support seat and the main driving cylinder of the present invention; Fig.19It is a schematic diagram of a three-dimensional structure of the threaded rod, the support seat and the auxiliary driving cylinder in an exploded bottom view according to the present invention.

[0021] In the figure: 1, steel cable; 2, detection target; 3, main clamping 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, supporting spring; 18, shifting frame; 19, reset spring; 20, driving rod; 21, driving slope; 22, groove wheel block; 23, first spring groove; 24, second spring groove; 25, connecting spring; 26, first cone swivel; 27, second cone swivel; 28, first cone slope; 29, second Conical slope; 30, round rod section; 31, round through hole; 32, rotating 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 branch rope; 40, second branch rope; 41, middle through hole; 42, first rope threading groove; 43, second rope threading groove; 44, threaded hole; 45, threaded rod; 46, support seat; 47, main drive cylinder; 48, auxiliary drive cylinder; 49, synchronous wheel; 50, synchronous belt; 51, auxiliary drive block; 52, hand-held protective frame; 53, protective half plate; 54, telescopic protective cover; 55, mounting wheel groove; 56, rotating wheel. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] For examples, see Figure 1-Figure 19A transmission line tower strength detection device includes a steel cable 1 and a detection target part 2, and also includes a detection system and a force application system. The force application system includes a main abutting frame 3, and an electric telescopic rod 4 is installed on the top of the main abutting frame 3. A driving block 5 is fixedly connected to the telescopic rod of the electric telescopic rod 4, and a driving frame 6 is slidably connected to the driving block 5. A pressure sensor 7 is installed between the driving frame 6 and the driving block 5. Through the design of the force application system, the detection target part 2 is matched to form a functional structure for lateral traction and force application, and can be matched to form a lateral bending drive for the detection target part 2, which is convenient for subsequent strength detection of the detection target part 2, and there is no need to perform a force application on the detection target part 2 during the detection operation. The detection target part 2 is hoisted and clamped, and the operation convenience is good. A support compensation structure is installed in the driving frame 6, and the support compensation structure matches the steel cable 1. The support compensation structure includes a sliding bracket 16, and the sliding bracket 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 end of the sliding bracket 16. Two opposing moving frames 18 are slidably connected in the sliding bracket 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 mounted on the two opposing moving frames 18. The steel cable 1 is wound around the follower wheel assembly. The two opposing moving frames The ends of the sliding brackets 18 that are away from each other are fixedly connected with a driving rod 20, and the left and right ends of the sliding bracket 16 are provided with a driving slope 21, and the two driving slopes 21 are matched with the two driving rods 20 respectively. The follower wheel assembly includes a plurality of sheave blocks 22, and the plurality of sheave blocks 22 are provided with a first spring groove 23 and a second spring groove 24. The plurality of first spring grooves 23 are fixedly connected with a connecting spring 25, and the plurality of connecting springs 25 are respectively fixedly connected with the plurality of second spring grooves 24. The two shifting frames 18 are respectively rotatably connected with a first cone rotating ring 26 and a second cone rotating ring 27, and the plurality of sheave blocks 22 are provided with a first cone rotating ring 26 that matches the first cone rotating ring 26. A conical slope 28, and multiple sheave blocks 22 are each provided with a second conical slope 29 matching the second conical swivel 27. Through the design of the support compensation structure, the elastic elongation generated by the matching steel cable 1 under the stress state corresponds to the introduction of length compensation, so that the traction distance of the steel cable 1 under different tension states changes less, and the introduction of the elastic compensation function of the steel cable 1 makes the detection data more accurate and ensures the detection quality. Two round rod segments 30 and two round through holes 31 are each provided on the two opposing shifting frames 18. The four round rod segments 30 respectively pass through the four round through holes 31 to achieve relative sliding connection between the two opposing shifting frames 18 and guidance of the sliding direction.

[0024] It should be further explained that hook structures are installed at both ends of the steel cable 1, and the two hook structures are matched with the detection target part 2. The two hook structures include a rotating frame 32, a first hook frame 33 and a second hook frame 34. The two ends of the two rotating frames 32 are rotatably connected with the first bracket 35 and the second bracket 36 respectively. The two first brackets 35 are rotatably connected with the first rotating frame 37. The two first rotating frames 37 are rotatably connected with the two first hook frames 33 respectively. The two second brackets 36 are rotatably connected with the second rotating frames 38. The two second rotating frames 38 are rotatably connected with the two second hook frames 34 respectively. The two first hook frames 33 and the two second hook frames 34 are all connected to the steel cable 1. Through the design of the hook structure, the two ends of the steel cable 1 are relative to the detection target. The connection and positioning of the mark 2 ultimately facilitates the detection force of the electric telescopic rod 4 relative to the detection target part 2, and is more practical. The two ends of the steel cable 1 are fixedly connected with the first branch cable 39 and the second branch cable 40. The two rotating frames 32 are provided with middle through holes 41. The two first branch cables 39 pass through the two middle through holes 41 respectively, and the two second branch cables 40 also pass through the two middle through holes 41 respectively. The two first branch cables 39 are fixedly connected to the two first hook frames 33 respectively, and the two second branch cables 40 are fixedly connected to the two second hook frames 34 respectively. The tops of the two first rotating frames 37 are provided with first rope threading grooves 42, and the two first rope threading grooves 42 are matched with the two first branch cables 39 respectively. The tops of the two second rotating frames 38 are provided with second rope threading grooves 43. The second rope threading grooves 43 are matched with the two second branch cables 40 respectively, which are convenient for the respective support and guidance of the first branch cable 39 and the second branch 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 abutting frame 3, and a sliding opening 11 is opened in the main abutting frame 3. The telescopic arm 8 is slidably connected in the sliding opening 11. The servo motor 9 and the telescopic arm 8 are respectively installed with a driving gear and a transmission rack. The driving gear and the transmission rack are meshed transmission. The servo motor 9 is used for the movement drive of the telescopic arm 8. The right end of the main abutting frame 3 is fixedly connected with a handheld protective frame 52, and the handheld protective frame 52 forms a surrounding protection for the servo motor 9. The detection frame 10 is fixedly connected to the telescopic arm 8, and the detection frame 10 slides in the detection frame 10. A lifting frame 12 is connected, and an elastic vertical spring 13 is fixedly connected to the top of the lifting frame 12. 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. The reading head 15 of the grating ruler 14 is connected to the lifting frame 12. Through the design of the detection system, the matching detection target part 2 is formed to form a bending degree detection under a stress state, and then the strength detection of the detection target part 2 is formed. Under the premise of ensuring the basic strength detection operation function, the deformation detection of different positions of the detection target part 2 can be realized, and the detection coverage of the detection target part 2 is improved. The bottom end of the lifting frame 12 is provided with a mounting wheel groove 55, and a rotating wheel 56 is rotatably connected in the mounting wheel groove 55, and the wheel surface of the rotating wheel 56 matches the detection target part 2.

[0025] It should be further explained that two threaded holes 44 are provided in the main abutting frame 3, the threads in the two threaded holes 44 are in opposite directions, threaded rods 45 are threadedly connected in the two threaded holes 44, the bottom ends of the two threaded rods 45 are hinged with support seats 46, the two threaded rods 45 are respectively slidably connected with a main drive cylinder 47 and an auxiliary drive cylinder 48, the main drive cylinder 47 and the auxiliary drive cylinder 48 are both rotatably connected in the main abutting frame 3, and the main drive cylinder 47 and the auxiliary drive cylinder 48 are fixedly connected with a synchronous wheel 49, and the two synchronous wheels 49 are connected between them. The transmission is connected with a synchronous belt 50, and a driving auxiliary block 51 is fixedly connected to the main driving cylinder 47. The main driving cylinder 47 can be driven by rotating the driving auxiliary block 51. The main driving cylinder 47 rotates to drive the synchronous wheel 49 connected thereto. The two synchronous wheels 49 can rotate synchronously through the transmission of the synchronous belt 50. 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 two threaded rods 45. Synchronous rotation drive, since the two threaded rods 45 are respectively threadedly connected in the two threaded holes 44, and the threads in the two threaded holes 44 are in opposite directions, the synchronous rotation of the two threaded rods 45 will cause one threaded rod 45 to extend relative to the threaded hole 44 on which it is installed, while the other threaded rod 45 will be retracted relative to the threaded hole 44 on which it is installed. When the bottom end of the main clamping frame 3 is pressed against the detection target part 2, the two support seats 46 can be adjusted by relative adjustment of the two threaded rods 45 to achieve the change of the relative support height of the two support seats 46 relative to the main clamping frame 3, and finally the bracket angle of the main clamping frame 3 relative to the detection target part 2 is adjusted, so that the main clamping frame 3 and the detection target part 2 have a relatively stable bracket angle. The top of the main clamping frame 3 is fixedly connected to two protective half plates 53, and the two protective half plates 53 together form a shielding protection for the transmission structure between the synchronous belt 50 and the two synchronous wheels 49. The rear end of the main clamping frame 3 is fixedly connected to a telescopic protective sleeve 54, and the telescopic arm 8 is inserted into the telescopic protective sleeve 54.

[0026] The electric telescopic rod 4, pressure sensor 7, servo motor 9 and grating ruler 14 in this embodiment are all conventional devices purchased on the market and known to those skilled in the art. In the present invention, we only use them without improving their structure and function. For those skilled in the art, their setting method, installation method and electrical connection method only need to be debugged and operated according to the requirements of their instruction manual, and will not be described in detail here.

[0027] To sum up, the working principle of the power transmission line tower strength detection device is as follows: when in use, the power transmission line tower strength detection device is first adjusted relative to the placement location of the detection target part 2, and the main clamping frame 3 is abutted against the detection target part 2. When the area on the detection target part 2 where the main clamping frame 3 abuts is a flat surface relatively parallel to the center line of the main clamping frame 3, the bottom of the main clamping frame 3 is directly abutted against the detection target part 2. When the corresponding area on the detection target part 2 where the main clamping frame 3 is placed is other special surfaces such as an inclined plane, the two threaded rods 45 are relatively adjusted relative to the main clamping frame 3 by rotating the driving auxiliary block 51, so that the support seat 46 forms a corresponding adjustment of the relative position relative to the main clamping frame 3, and finally the main clamping frame 3 has a relatively vertical posture relative to the detection target part 2, and then the two hook structures are used. The two ends of the steel cable 1 are respectively connected to the detection target part 2, and then the electric telescopic rod 4 is started to push the driving frame 6 to move away from the detection target part 2. To facilitate the positioning and installation of the two hook structures relative to the two ends of the detection target part 2, the steel cable 1 will be in a relaxed state. In the initial stage of the operation of the electric telescopic rod 4, to facilitate the relative position stability of the main clamping frame 3 and the detection target part 2, an external auxiliary bracket positioning function can be added, or manual support can be used. Until the steel cable 1 is taut and the main clamping frame 3 is further tightened relative to the detection target part 2 when the steel cable 1 is taut, the force application system as a whole will enter a relatively stable state relative to the detection target part 2. Thereafter, to ensure the safety of the detection, the operator should stay away from the detection target part 2 and form a certain safety distance relative to the detection target part 2.

[0028] Furthermore, the grating ruler 14 and the pressure sensor 7 are both equipped with quick-connect data heads, so the reading and control of the pressure sensor 7 and the grating ruler 14 can form external leads through the corresponding quick-connect data heads to facilitate the operator's remote control and reading of detection data, and then continue to control the operation of the electric telescopic rod 4 to realize the distance between the drive block 5 and the detection target part 2 until the reading on the pressure sensor 7 enters the corresponding application range, which is the corresponding lateral tension applied by the steel cable 1 on the detection target part 2. For the determination of the application range, multiple groups of ranges can be selected according to actual conditions to form corresponding detections respectively, and because the steel cable 1 is inevitably stretched under tension, when the drive frame 6 pushes the steel cable 1 to tighten , the sliding bracket 16 will overcome the supporting spring 17 and move relative to the driving frame 6, and during the movement, due to the relative action between the driving slope 21 and the driving rod 20, the two shifting frames 18 will move relatively close to each other. Since the relative movement of the two shifting frames 18 will drive the first cone rotating ring 26 and the second cone rotating ring 27 to move correspondingly, the first cone rotating ring 26 and the second cone rotating ring 27 can also be relatively close to each other. Under the relative action of the first cone rotating ring 26 and the first cone slope 28, and the relative action of the second cone rotating ring 27 and the second cone slope 29, the two adjacent sheave blocks 22 will overcome the elastic force of the connecting spring 25 between the two sheave blocks 22 and move relatively away from each other, and finally the winding of the multiple sheave blocks 22 on the steel cable 1 is improved. The expansion adjustment is formed by the winding circle, and the expansion of the winding circle forms a longer occupancy of the steel cable 1, so that compensation is formed after the steel cable 1 is stretched, so that when the steel cable 1 is exerting force on the detection target part 2, the corresponding traction distance deviation is small under the action of forces of different sizes, thereby ensuring the accuracy of subsequent detection. After that, the electric telescopic rod 4 is controlled to enter a parked state, at which time the detection target part 2 also enters a stable bending state, and the servo motor 9 is controlled to run to realize the position movement of the telescopic arm 8 relative to the sliding opening 11, and then realize the relative position change of the detection frame 10 relative to the detection target part 2. During the change of the detection part position, the rotating wheel 56 will roll relative to the detection target part 2, and the rolling friction will be used to replace the sliding friction, so that the lifting frame 12 can move relative to the detection frame 10. While changing its position, the friction loss of the rotating wheel 56 is reduced. Since the two ends of the detection target part 2 are affected by the traction force, the side of the detection target part 2 opposite to the main clamping frame 3 will present a posture in which the front and rear ends are tilted relative to the middle area. Therefore, when the telescopic arm 8 is adjusted forward relative to the detection target part 2, the lifting frame 12 will show a trend of gradually rising relative to the detection frame 10. Since the reading head 15 will also form a synchronous position change with the lifting frame 12, the reading head 15 forms a position change relative to the grating ruler 14, and then the data is read and quantified. With the increase of the movement amplitude of the telescopic arm 8, the bending deformation amount of the detection target part 2 at different length positions can be detected accordingly, and finally the strength detection of the detection target part 2 at different length positions is achieved.

[0029] Furthermore, when the two ends of the detection target part 2 are rod-shaped structures, the hooking states of the two hooking structures are as shown in the attached figure. Figure 1 As shown, at this time, the connection surface between the first branch cable 39 and the first hook frame 33 and the connection surface between the second branch cable 40 and the second hook frame 34 are in a relative state. In this state, a traction force is applied to the first branch cable 39 and the second branch cable 40, and the first rotating frame 37 and the second rotating frame 38 in the same hook structure show a tendency to rotate closer relative to each other, so that the first hook frame 33 and the second hook frame 34 can be held tightly relative to the detection target part 2, and the cross bar on the first hook frame 33 and the cross bar on the second hook frame 34 in the same hook structure are in a relatively misaligned posture, so that the cross bars on the first hook frame 33 and the cross bars on the second hook frame 34 that cooperate with each other can be relatively cross-overlapped to the left and right, ensuring the holding effect with the detection target part 2, for convenience A horizontal plate at the bottom of the first hook frame 33 and a horizontal bar at the bottom of the second frame are inserted relative to the bottom of the detection target part 2. When the placement posture of the detection target part 2 does not have a gap for insertion, the detection target part 2 can be padded in advance or tilted with a crowbar. At the same time, anti-slip grooves are provided on the cross bar to improve the relative position stability of the cross bar and the detection target part 2 after contact. When the two ends of the detection target part 2 have holes and the width of the detection target part 2 is large, it is not convenient for the first hook frame 33 and the second hook frame 34 to form a hug with each other. 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 branch rope 39 and the second branch rope 40 enter the attached Fig.16 and attached Fig.17 In the state shown, at this time, the connecting surface of the first branch cable 39 and the first hook frame 33 and the connecting surface of the second branch cable 40 and the second hook frame 34 are in a reverse shape, and the first branch cable 39 is guided into the first rope threading groove 42, and the second branch cable 40 is guided into the second rope threading groove 43. In this state, traction is applied to the first branch cable 39 and the second branch cable 40, and the first rotating frame 37 and the second rotating frame 38 in the same hooking structure tend to rotate away from each other, so that the first hook frame 33 and the second hook frame 34 can form internal support and hooking relative to the holes on the detection target part 2, and finally the two ends of the steel cable 1 are relatively positioned relative to the two ends of the detection target part 2, so as to ensure the realization of subsequent detection operations.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that 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 part (2), characterized in that: The invention also comprises a detection system and a force application system, wherein the force application system comprises a main abutting frame (3), an electric telescopic rod (4) is installed at the top of the main abutting 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 inside the driving frame (6), the support compensation structure matches the steel cable (1), hook structures are installed at both ends of the steel cable (1), and the two hook structures match the detection target part (2), and the detection system comprises a telescopic arm (8), a servo motor (9) and a detection frame (1 0), the servo motor (9) is mounted on the right end of the main clamping frame (3), and a sliding opening (11) is opened in the main clamping frame (3), the telescopic arm (8) is slidably connected in the sliding opening (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 end of the lifting frame (12) is fixedly connected to an elastic vertical spring (13), the top end 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 a reading head (15) of the grating ruler (14) is connected to the lifting frame (12).

2. A transmission line tower strength detection device according to claim 1, characterized in that: The support compensation structure comprises a sliding bracket (16), wherein the sliding bracket (16) is slidably connected in the driving bracket (6), a support spring (17) is fixedly connected in the driving bracket (6), the top end of the support spring (17) is fixedly connected to the bottom end of the sliding bracket (16), two opposing shifting frames (18) are slidably connected in the sliding bracket (16), the two opposing shifting frames (18) are slidably connected to each other, a return spring (19) is fixedly connected between the two opposing shifting frames (18), a follower wheel assembly is sleeved on the two opposing shifting frames (18), the steel cable (1) is wound around the follower wheel assembly, the ends of the two opposing shifting frames (18) that are away from each other are fixedly connected to a driving rod (20), and driving slopes (21) are provided at both left and right ends of the sliding bracket (16), and the two driving slopes (21) are matched with the two driving rods (20) respectively.

3. A transmission line tower strength detection device according to claim 2, characterized in that: The follower wheel assembly comprises a plurality of sheave blocks (22), each of the plurality of sheave blocks (22) being provided with a first spring groove (23) and a second spring groove (24), each of the plurality of first spring grooves (23) being fixedly connected with a connecting spring (25), each of the plurality of connecting springs (25) being fixedly connected with the plurality of second spring grooves (24), and each of the two opposing shifting frames (18) being rotatably connected with a first conical rotating ring (26) and a second conical rotating ring (27), each of the plurality of sheave blocks (22) being provided with a first conical slope surface (28) matching the first conical rotating ring (26), and each of the plurality of sheave blocks (22) being provided with a second conical slope surface (29) matching the second conical rotating ring (27).

4. A transmission line tower strength detection device according to claim 3, characterized in that: Two round rod segments (30) and two round through holes (31) are provided on each of the two opposing shifting frames (18), and the four round rod segments (30) pass through the four round through holes (31) respectively.

5. A transmission line tower strength detection device according to claim 4, characterized in that: The two hook structures each comprise a rotating connecting frame (32), a first hook frame (33) and a second hook frame (34); the two ends of the two rotating connecting frames (32) are respectively rotatably connected to a first bracket (35) and a second bracket (36); the two first brackets (35) are each rotatably connected to a first rotating frame (37); the two first rotating frames (37) are respectively rotatably connected to the two first hook frames (33); the two second brackets (36) are each rotatably connected to a second rotating frame (38); 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).

6. A transmission line tower strength detection device according to claim 5, characterized in that: Both ends of the steel cable (1) are fixedly connected with a first branch cable (39) and a second branch cable (40); the two rotating connecting frames (32) are provided with a central through hole (41); the two first branch cables (39) respectively pass through the two central through holes (41); the two second branch cables (40) also respectively pass through the two central through holes (41); the two first branch cables (39) are respectively fixedly connected to the two first hook frames (33); and the two second branch cables (40) are respectively fixedly connected to the two second hook frames (34).

7. A transmission line tower strength detection device according to claim 6, characterized in that: The top ends of the two first rotating frames (37) are each provided with a first rope threading groove (42), and the two first rope threading grooves (42) are respectively matched with the two first branch cables (39); the top ends of the two second rotating frames (38) are each provided with a second rope threading groove (43), and the two second rope threading grooves (43) are respectively matched with the two second branch cables (40).

8. A transmission line tower strength detection device according to claim 7, characterized in that: The main abutting frame (3) is provided with two threaded holes (44), the threads of the two threaded holes (44) are in opposite directions, the two threaded holes (44) are both threadedly connected with threaded rods (45), the bottom ends of the two threaded rods (45) are both hinged with support seats (46), the two threaded rods (45) are respectively slidably connected with a main drive cylinder (47) and an auxiliary drive cylinder (48), the main drive cylinder (47) and the auxiliary drive cylinder (48) are both rotatably connected in the main abutting frame (3), the main drive cylinder (47) and the auxiliary drive cylinder (48) are both fixedly connected with synchronous wheels (49), a synchronous belt (50) is transmission-connected between the two synchronous wheels (49), and the main drive cylinder (47) is fixedly connected with a driving auxiliary block (51).

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

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

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