Impact excitation applying device for hidden danger detection of power transmission tower structure

Abstract

The invention relates to an impact excitation applying device for hidden danger detection of a power transmission tower structure, which comprises a shell and an excitation assembly, the excitation assembly comprises a transverse excitation mechanism and a longitudinal excitation mechanism, one end of the shell is provided with the transverse excitation mechanism, and the transverse excitation mechanism can impact a power transmission tower in the transverse direction through the shell. A longitudinal excitation mechanism is arranged at the end, away from the transverse excitation mechanism, of the shell and can impact the power transmission tower in the longitudinal direction through the shell. Angle steel or a steel pipe of the power transmission tower is clamped and fixed through the arranged fixing assembly, so that the impact excitation applying device is locked and fixed to the power transmission tower, impact excitation is conducted on the power transmission tower in the transverse direction through the transverse excitation mechanism, and impact excitation is conducted on the power transmission tower in the longitudinal direction through the longitudinal excitation mechanism. And when the two devices work simultaneously, superposed impact excitation can be performed on the power transmission tower, and a vibration response analysis result is ensured to be more accurate and reliable.

Description

Technical Field

[0001] This disclosure relates to the field of impact excitation application technology, specifically to an impact excitation application device for detecting structural hazards in power transmission towers. Background Technology

[0002] As a critical infrastructure of the power system, transmission towers are exposed to the outdoor environment for extended periods, making them susceptible to damage from wind, rain, lightning strikes, corrosion, and other factors, leading to cumulative structural damage. Traditional manual inspections rely on visual inspection or simple tools, making it difficult to detect internal hazards.

[0003] Existing impact testing devices suffer from problems such as complex structure and poor adaptability. For example, some testing devices use a fixed base design, which cannot be adapted to tower components of different specifications; the impact application direction is unidirectional, resulting in inaccurate damage detection results. Summary of the Invention

[0004] To overcome the aforementioned problems, this disclosure provides an impact excitation application device for detecting structural hazards in power transmission towers, including a housing and an excitation assembly. The excitation assembly includes a lateral excitation mechanism and a longitudinal excitation mechanism. The lateral excitation mechanism is located at one end of the housing, enabling it to impact the power transmission tower laterally through the housing. The longitudinal excitation mechanism is located at the end of the housing away from the lateral excitation mechanism, enabling it to impact the power transmission tower longitudinally through the housing.

[0005] Optionally, a fixing component is provided in the middle of the housing, a fixing space is provided in the middle of the housing, the fixing component is disposed in the fixing space, and an installation space is provided at each end of the housing. The lateral excitation mechanism and the longitudinal excitation mechanism are respectively disposed in one of the installation spaces.

[0006] Optionally, the fixing component includes a dual-output motor, which is disposed inside the housing. Each of the two output ends of the dual-output motor is provided with a threaded rod. The threaded rods are rotatably disposed inside the housing, and the threads of the two threaded rods are arranged in opposite directions. Each threaded rod has a movable block disposed on its outer side through a threaded engagement. The movable block is slidably disposed inside the housing, and a V-shaped clamping block is provided on the movable block.

[0007] Optionally, the sides of the V-shaped clamps that are close to each other are inlaid with rubber pads.

[0008] Optionally, the transverse excitation mechanism includes an excitation motor, the output end of which is provided with a toothed gear, an impact rod is slidably disposed inside the housing, a rack is provided in the middle of the impact rod, the rack meshes with the toothed gear, a storage spring is sleeved on each side of the impact rod, the storage spring is disposed inside the housing, and a baffle is provided on each side of the impact rod.

[0009] Optionally, an impact hammer is provided at each end of the impact rod.

[0010] Optionally, the longitudinal excitation mechanism and the transverse excitation mechanism have the same structure, only differing in installation direction. The impact rod of the transverse excitation mechanism is arranged along the length of the outer shell, while the impact rod of the longitudinal excitation mechanism is arranged perpendicular to the length of the outer shell.

[0011] Optionally, it also includes a self-moving component, which is disposed at the lower end of the V-shaped clamping block. The self-moving component includes a rotary motor, and the output end of the rotary motor is provided with a friction wheel. The outer layer of the friction wheel is provided with a soft rubber layer, and the soft rubber layer of the friction wheel protrudes from the rubber pad of the V-shaped clamping block.

[0012] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects:

[0013] This invention uses a fixed component to clamp and fix the angle steel or steel pipe of the transmission tower, so as to lock and fix the impact excitation application device on the transmission tower. The transverse excitation mechanism applies impact excitation to the transmission tower in the transverse direction, and the longitudinal excitation mechanism applies impact excitation to the transmission tower in the longitudinal direction. When the two work simultaneously, they can apply superimposed impact excitation to the transmission tower, ensuring that the vibration response analysis results are more accurate and reliable. Attached Figure Description

[0014] Figure 1 This is an isometric view of an impact excitation application device for detecting structural hazards in power transmission towers, according to an exemplary embodiment of this disclosure.

[0015] Figure 2 This is a schematic diagram of the planar structure of an impact excitation application device for detecting structural hazards in power transmission towers, according to an exemplary embodiment of this disclosure.

[0016] Figure 3 yes Figure 2 A cross-sectional view along the AA direction.

[0017] Figure 4 This is a cross-sectional view of an impact excitation application device for detecting structural hazards in power transmission towers, according to an exemplary embodiment of this disclosure.

[0018] Figure 5 yes Figure 4 A magnified schematic diagram of part M.

[0019] Figure 6 This is a partial cross-sectional view of the housing and self-moving component of an impact excitation application device for detecting structural hazards in power transmission towers, according to an exemplary embodiment of this disclosure.

[0020] Explanation of icon numbers

[0021] 1. Housing; 2. Fixing assembly; 20. Dual-output motor; 21. Threaded rod; 22. Moving block; 23. V-shaped clamp; 230. Rubber pad; 3. Excitation assembly; 30. Lateral excitation mechanism; 300. Excitation motor; 301. Gear with missing tooth; 302. Impact rod; 303. Rack; 304. Storage spring; 305. Baffle; 306. Impact hammer; 31. Longitudinal excitation mechanism; 4. Self-moving assembly; 40. Rotary motor; 41. Friction wheel; 42. Soft rubber layer. Detailed Implementation

[0022] The specific embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this disclosure.

[0023] In this disclosure, unless otherwise stated, directional terms such as "upper," "lower," "front," "rear," "left," and "right" are used for ease of description based on the drawing orientations of the corresponding figures, while "inner" and "outer" are defined based on the contours of the corresponding components themselves. Terms such as "first" and "second" used in this disclosure are used to distinguish one element from another and do not have sequential or importance implications. Furthermore, when the following description refers to the figures, unless otherwise indicated, the same numbers in different figures represent the same or similar elements.

[0024] like Figures 1-6 As shown in the figure, an impact excitation application device for detecting structural hazards of power transmission towers provided by an embodiment of the present invention includes a housing 1, a fixing component 2 disposed in the middle of the housing 1, and an excitation component 3. The excitation component 3 includes a transverse excitation mechanism 30 and a longitudinal excitation mechanism 31. A transverse excitation mechanism 30 is disposed at one end of the housing 1, which can impact the power transmission tower in the transverse direction through the housing 1. A longitudinal excitation mechanism 31 is disposed at the end of the housing 1 away from the transverse excitation mechanism 30, which can impact the power transmission tower in the longitudinal direction through the housing 1.

[0025] It is understood that the present invention clamps and fixes the angle steel or steel pipe of the transmission tower with a fixed component, so as to lock and fix the impact excitation application device on the transmission tower. The transverse excitation mechanism applies impact excitation to the transmission tower in the transverse direction, and the longitudinal excitation mechanism applies impact excitation to the transmission tower in the longitudinal direction. When the two work simultaneously, they can apply superimposed impact excitation to the transmission tower, ensuring that the vibration response analysis results are more accurate and reliable.

[0026] In one embodiment, a fixing space is provided in the middle of the outer shell 1, the fixing component 2 is disposed in the fixing space, and an installation space is provided at each end of the outer shell 1. The lateral excitation mechanism 30 and the longitudinal excitation mechanism 31 are respectively disposed in an installation space.

[0027] The specific implementation method is as follows: a notch is provided on one side of the fixed space so that the angle steel or steel pipe components of the transmission tower can enter the space between the fixed components 2 through the notch. The fixed components 2 fix the outer shell 1 and the excitation components 3 to the transmission tower through the angle steel or steel pipe components of the transmission tower. The installation space provides the installation position for the transverse excitation mechanism 30 and the longitudinal excitation mechanism 31. In this way, the excitation components 3 apply an impact to the transmission tower. Specifically, the transverse excitation mechanism 30 impacts the transmission tower in the transverse direction, and the longitudinal excitation mechanism 31 impacts the transmission tower in the longitudinal direction. This allows for the rapid detection of structural hazards (such as corrosion, cracks, and loose bolts) through vibration response analysis.

[0028] In one embodiment, the fixing component 2 includes a dual-output motor 20, which is disposed inside the housing 1. Each of the two output ends of the dual-output motor 20 is provided with a threaded rod 21. The threaded rods 21 are rotatably disposed inside the housing 1, and the threads of the two threaded rods 21 are arranged in opposite directions. Each threaded rod 21 is provided with a moving block 22 on its outer side through a threaded engagement. The moving block 22 is slidably disposed inside the housing 1, and a V-shaped clamping block 23 is provided on the moving block 22.

[0029] The specific implementation method is as follows: When the outer shell 1 and the excitation component 3 are fixed on the transmission tower by the fixing component 2, the two output ends of the dual-output motor 20 simultaneously drive the two threaded rods 21 to rotate, so that the threaded rods 21 drive the moving block 22 to move along the threaded rods 21 toward the dual-output motor 20, thereby causing the moving block 22 to drive the V-shaped clamping block 23 to move closer to each other, so that the V-shaped clamping block 23 clamps and fixes the angle steel or steel pipe component of the transmission tower, so that the V-shaped clamping block 23 fixes the outer shell 1 and the excitation component 3 on the transmission tower.

[0030] In one embodiment, rubber pads 230 are embedded on the sides of the V-shaped clamps 23 that are close to each other;

[0031] The specific implementation method is as follows: When the moving block 22 drives the V-shaped clamping block 23 to approach each other and clamp the angle steel or steel pipe component of the transmission tower, the V-shaped clamping block 23 and the angle steel or steel pipe component of the transmission tower are prevented from slipping by the rubber pad 230. The rubber pad 230 can increase the friction between the V-shaped clamping block 23 and the angle steel or steel pipe component of the transmission tower, reducing or even avoiding the situation where the outer shell 1 and the excitation component 3 are fixed and slipping between them and the transmission tower.

[0032] In one embodiment, the transverse excitation mechanism 30 includes an excitation motor 300, an output end of which is provided with a toothed gear 301, an impact rod 302 is slidably disposed inside the housing 1, a rack 303 is provided in the middle of the impact rod 302, the rack 303 meshes with the toothed gear 301, a storage spring 304 is sleeved on each side of the impact rod 302, the storage spring 304 is disposed inside the housing 1, and a baffle 305 is provided on each side of the impact rod 302.

[0033] The specific implementation method is as follows: After the outer shell 1 and the excitation assembly 3 are fixed, the transverse excitation mechanism 30 and the longitudinal excitation mechanism 31 apply impact to the transmission tower in the transverse and longitudinal directions, respectively. In addition, the transverse excitation mechanism 30 and the longitudinal excitation mechanism 31 work simultaneously to apply superimposed impact to the transmission tower. Specifically, the impact is applied by the excitation motor 300 driving the toothed gear 301 to rotate, which causes the toothed gear 301 to drive the rack 303 to move. At this time, the impact rod 302 moves synchronously with the rack 303 inside the outer shell 1. When moving, the baffle 305 is pushed in the direction of movement to compress the energy storage spring 304, causing the energy storage spring 304 to be compressed and stored. When the toothed gear 301 rotates to the position without teeth, the toothed gear 301 and the rack 303 do not mesh. At this time, the energy storage spring 304 resets and drives the impact rod 302 to move in the opposite direction, so that the impact rod 302 impacts the outer shell 1 through inertia. The impact rod 302 applies impact excitation to the transmission tower in the lateral direction through the outer shell 1, so as to realize the rapid detection of structural hazards in the lateral direction through vibration response analysis.

[0034] In one embodiment, an impact hammer 306 is provided at each end of the impact rod 302;

[0035] The specific implementation method is as follows: the impact hammer 306 can increase the mass of the impact rod 302, thereby increasing the impact force of the impact rod 302, and ensuring that the vibration response analysis detection mechanism is more detailed and accurate when the excitation component 3 applies impact excitation.

[0036] In one embodiment, the longitudinal excitation mechanism 31 and the transverse excitation mechanism 30 have the same structure, only the installation direction is different. The impact rod 302 of the transverse excitation mechanism 30 is arranged along the length direction of the outer shell 1, and the impact rod 302 of the longitudinal excitation mechanism 31 is arranged perpendicular to the length direction of the outer shell 1.

[0037] The specific implementation method is as follows: the longitudinal excitation mechanism 31 applies impact excitation in the same way and with the transverse excitation mechanism 30. The only difference between the two is the direction of the impact excitation. The transverse excitation mechanism 30 can apply impact excitation to the transmission tower in the transverse direction, and the longitudinal excitation mechanism 31 can apply impact excitation to the transmission tower in the longitudinal direction. In addition, the longitudinal excitation mechanism 31 and the transverse excitation mechanism 30 apply impact excitation at the same time, so that the two apply superimposed impact excitation to the transmission tower, thereby ensuring that the vibration response analysis detects structural hidden dangers accurately and reliably.

[0038] In one embodiment, a self-moving component 4 is also included. The self-moving component 4 is disposed at the lower end of the V-shaped clamp 23. The self-moving component 4 includes a rotary motor 40. A friction wheel 41 is disposed at the output end of the rotary motor 40. A soft rubber layer 42 is disposed on the outer layer of the friction wheel 41, and the soft rubber layer 42 of the friction wheel 41 protrudes from the rubber pad 230 of the V-shaped clamp 23.

[0039] The specific implementation method is as follows: When the moving block 22 drives the V-shaped clamping blocks 23 to approach each other and clamp the angle steel or steel pipe components of the transmission tower, the soft rubber layer 42 of the friction wheel 41 protrudes from the rubber pad 230 of the V-shaped clamping block 23, so that the friction wheel 41 first clamps and fixes the angle steel or steel pipe components of the transmission tower through the soft rubber layer 42. At this time, the moving block 22 drives the V-shaped clamping blocks 23 to continue to approach each other, so that the soft rubber layer 42 is squeezed and deformed. At the same time, the V-shaped clamping blocks 23 adhere to and clamp the angle steel or steel pipe components of the transmission tower through the rubber pad 230. When the impact excitation application device for detecting structural hazards of the transmission tower is on the angle steel or steel pipe component of the same transmission tower and it is necessary to change the impact excitation application position, the two output ends of the dual-output motor 20 simultaneously drive the two threaded rods 21 to rotate in opposite directions, so that the threaded rods 21 drive the moving block 22 to move along the threaded rods 21 in a direction away from the dual-output motor 20 through the thread, thereby causing the moving block 22 to drive the V-shaped clamping blocks. 23 are moved away from each other. At this time, the V-shaped clamp 23 and the rubber pad 230 just detach from the angle steel or steel pipe component of the transmission tower. The dual-output motor 20 stops so that the V-shaped clamp 23 and the rubber pad 230 release the clamping fixation between the impact excitation application device and the transmission tower. The friction wheel 41 still clamps the angle steel or steel pipe component of the transmission tower through the soft rubber layer 42. At this time, the rotary motor 40 drives the friction wheel 41 to rotate, so that the friction wheel 41 drives the fixing component 2, the outer shell 1 and the excitation component 3 to move along the angle steel or steel pipe component of the transmission tower through the soft rubber layer 42. The direction of movement of the device is controlled by controlling the rotation direction of the rotary motor 40 so as to adjust the position of the device applying impact excitation. After the impact excitation position of the device is adjusted, the dual-output motor 20 drives the two V-shaped clamps 23 to move closer to each other again through the two threaded rods 21 and the moving block 22 to clamp and fix the angle steel or steel pipe component of the transmission tower so as to fix the device again.

[0040] Working Principle: A notch is provided on one side of the fixed space to allow the angle steel or steel pipe components of the transmission tower to enter between the fixed components 2 through the notch. The fixed components 2 then fix the outer shell 1 and the excitation component 3 to the transmission tower via the angle steel or steel pipe components. The installation space provides installation positions for the lateral excitation mechanism 30 and the longitudinal excitation mechanism 31. Thus, the excitation component 3 applies an impact to the transmission tower. Specifically, the lateral excitation mechanism 30 impacts the transmission tower laterally, and the longitudinal excitation mechanism 31 impacts the transmission tower longitudinally. This allows for rapid detection of structural hazards (such as rust, cracks, and loose bolts) through vibration response analysis. When the outer shell 1 and the excitation component 3 are fixed to the transmission tower by the fixed components 2, the two outputs of the dual-output motor 20 simultaneously drive the two threaded rods 21 to rotate. The threaded rods 21 drive the moving block 22 along the threaded rod 21 towards the dual-output motor 20, causing the moving block 22 to move the V-shaped clamp 23 closer together. This causes the V-shaped clamp 23 to impact the transmission tower. The angle steel or steel pipe components are clamped and fixed so that the V-shaped clamping block 23 can fix the outer shell 1 and the excitation component 3 to the transmission tower. When the moving block 22 moves the V-shaped clamping block 23 closer together to clamp the angle steel or steel pipe components of the transmission tower, the V-shaped clamping block 23 and the angle steel or steel pipe components of the transmission tower are anti-slip through the rubber pad 230. The rubber pad 230 can increase the friction between the V-shaped clamping block 23 and the angle steel or steel pipe components of the transmission tower, reducing or even avoiding the sliding between the outer shell 1 and the excitation component 3 and the transmission tower after they are fixed. In this situation, when the moving block 22 drives the V-shaped clamping blocks 23 to approach each other and clamp the angle steel or steel pipe components of the transmission tower, the soft rubber layer 42 of the friction wheel 41 protrudes from the rubber pad 230 of the V-shaped clamping block 23. This causes the friction wheel 41 to first clamp and fix the angle steel or steel pipe components of the transmission tower through the soft rubber layer 42. At this time, the moving block 22 drives the V-shaped clamping blocks 23 to continue to approach each other, causing the soft rubber layer 42 to be squeezed and deformed. At the same time, the V-shaped clamping blocks 23 adhere to and clamp the angle steel or steel pipe components of the transmission tower through the rubber pad 230.When the impact excitation device for detecting structural hazards in power transmission towers is located on the angle steel or steel pipe component of the same power transmission tower, and the impact excitation application position needs to be changed, the two output ends of the dual-output motor 20 simultaneously drive the two threaded rods 21 to rotate in opposite directions. This causes the threaded rods 21 to drive the moving block 22 to move away from the dual-output motor 20 along the threaded rods 21. As a result, the moving block 22 causes the V-shaped clamps 23 to move away from each other. At this point, the dual-output motor 20 stops as soon as the V-shaped clamps 23 and the rubber pad 230 are separated from the angle steel or steel pipe component of the power transmission tower, so that the clamping and fixing between the impact excitation device and the power transmission tower is released. The friction wheel 41 still clamps the angle steel or steel pipe components of the transmission tower through the soft rubber layer 42. At this time, the friction wheel 41 is driven to rotate by the rotary motor 40, so that the friction wheel 41 drives the fixing component 2, the outer shell 1 and the excitation component 3 to move along the angle steel or steel pipe components of the transmission tower through the soft rubber layer 42. The direction of movement of the device is controlled by controlling the rotation direction of the rotary motor 40, so as to adjust the position of the device applying the impact excitation. After the impact excitation position of the device is adjusted, the dual-output motor 20 drives the two V-shaped clamps 23 to move closer to each other again through the two threaded rods 21 and the moving block 22 to clamp and fix the angle steel or steel pipe components of the transmission tower, so as to fix the device again.

[0041] After the outer casing 1 and the excitation assembly 3 are fixed, the transverse excitation mechanism 30 and the longitudinal excitation mechanism 31 apply impacts to the transmission tower in the transverse and longitudinal directions, respectively. Furthermore, the transverse excitation mechanism 30 and the longitudinal excitation mechanism 31 work simultaneously to apply a superimposed impact to the transmission tower. Specifically, the impact is applied by the excitation motor 300 driving the toothed gear 301 to rotate, causing the toothed gear 301 to drive the rack 303 to move. At this time, the impact rod 302 moves synchronously with the rack 303 within the outer casing 1. When the impact rod 302 moves, it causes the baffle 305 to press the storage spring 304 in the direction of movement, thus compressing and storing force in the storage spring 304. When the toothed gear 301 rotates to the position without teeth, the toothed gear 301 and the rack 303 do not mesh. At this time, the storage spring 304 resets and drives the impact rod 302 to move in the opposite direction, causing the impact rod 302 to impact the outer casing 1 through inertia. This results in the impact rod 302 impacting the transmission tower laterally through the outer casing 1. Impact excitation is applied to the tower to enable rapid detection of structural hazards in the lateral direction through vibration response analysis. An impact hammer 306 is installed at each end of the impact rod 302. The impact hammer 306 increases the mass of the impact rod 302, thereby increasing its impact force and ensuring more detailed and accurate vibration response analysis when the excitation assembly 3 applies impact excitation. The longitudinal excitation mechanism 31 applies impact excitation in the same way and with the lateral excitation mechanism 30, differing only in the direction of the impact excitation. The lateral excitation mechanism 30 applies impact excitation to the transmission tower laterally, while the longitudinal excitation mechanism 31 applies impact excitation to the transmission tower longitudinally. Furthermore, the longitudinal excitation mechanism 31 and the lateral excitation mechanism 30 simultaneously apply impact excitation, resulting in superimposed impact excitation on the transmission tower, thus ensuring accurate and reliable results of vibration response analysis in detecting structural hazards.

[0042] This invention has been described through embodiments. Those skilled in the art will understand that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of the invention. Furthermore, under the teachings of this invention, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the invention. Therefore, this invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this invention.

Claims

1. A shock excitation application device for detecting a hidden danger of a power transmission tower structure, characterized by, The utility model provides an electric power transmission tower excitation device, including shell (1) and excitation assembly (3), the excitation assembly (3) includes transverse excitation mechanism (30) with longitudinal excitation mechanism (31), one end of shell (1) is provided with transverse excitation mechanism (30), and transverse excitation mechanism (30) can impact electric power transmission tower in transverse through shell (1), and the end of shell (1) away from transverse excitation mechanism (30) is provided with longitudinal excitation mechanism (31), and longitudinal excitation mechanism (31) can impact electric power transmission tower in longitudinal through shell (1).

2. The impact excitation application device for detecting a structural defect of a power transmission tower according to claim 1, wherein The middle part of the shell (1) is provided with a fixing assembly (2), the middle part of the shell (1) is provided with a fixing space, the fixing assembly (2) is arranged in the fixing space, and one mounting space is arranged at each end of the shell (1). The transverse excitation mechanism (30) and the longitudinal excitation mechanism (31) are arranged in one mounting space respectively.

3. The impact excitation application device for detecting a structural defect of a power transmission tower according to claim 2, characterized in that, The fixing assembly (2) includes a double-output motor (20), the double-output motor (20) is arranged in the shell (1), two output ends of the double-output motor (20) are respectively provided with a threaded rod (21), the threaded rod (21) is rotatably arranged in the shell (1), and the threads of the two threaded rods (21) are oppositely arranged, the outer side of each threaded rod (21) is respectively provided with a moving block (22) in a threaded fitting manner, the moving block (22) is slidably arranged in the shell (1), and a V-shaped clamping block (23) is arranged on the moving block (22).

4. The impact excitation application device for detecting a structural defect of a power transmission tower according to claim 3, characterized in that, The V-shaped clamping block (23) is embedded with rubber pads (230) on the side close to each other.

5. The impact excitation application device for detecting a structural defect of a power transmission tower according to claim 1, wherein The transverse excitation mechanism (30) includes an excitation motor (300), the output end of the excitation motor (300) is provided with a missing tooth gear (301), an impact rod (302) is slidably arranged in the shell (1), the middle part of the impact rod (302) is provided with a rack (303), the rack (303) is engaged with the missing tooth gear (301), one side of the impact rod (302) is provided with a force storage spring (304), the force storage spring (304) is arranged in the shell (1), and one side of the impact rod (302) is provided with a baffle (305).

6. The impact excitation application device for detecting a structural defect of a power transmission tower according to claim 5, wherein The impact rod (302) is provided with an impact hammer (306) at each end.

7. The impact excitation application device for detecting a structural defect of a power transmission tower according to claim 5, wherein The longitudinal excitation mechanism (31) and the transverse excitation mechanism (30) are completely the same in structure, and only the installation direction is different, the impact rod (302) of the transverse excitation mechanism (30) is arranged along the length direction of the shell (1), and the impact rod (302) of the longitudinal excitation mechanism (31) is arranged perpendicular to the length direction of the shell (1).

8. The impact excitation application device for detecting a structural defect of a power transmission tower according to claim 5, wherein Also include self-moving assembly (4), the self-moving assembly (4) is arranged at the lower end of the V-shaped clamp block (23), the self-moving assembly (4) includes rotary motor (40), the output end of rotary motor (40) is provided with friction wheel (41), the outer layer of friction wheel (41) is provided with soft rubber layer (42), and the soft rubber layer (42) of friction wheel (41) protrudes the rubber pad (230) of V-shaped clamp block (23).

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