A pole maintenance device

Abstract

The present application relates to the technical field of power maintenance, and especially relates to a pole maintenance device. The technical scheme is as follows: a pole maintenance device, comprising a ring-shaped machine box, the ring-shaped machine box is composed of two symmetrical semicircles, a plurality of lifting rollers are arranged on the inner ring surface of the ring-shaped machine box, a first ring-shaped slide and a second ring-shaped slide are arranged on the outer ring surface of the ring-shaped machine box, three first moving tables are slidably arranged in the first ring-shaped slide, polishing assemblies, spraying assemblies and drying assemblies are respectively arranged on the three first moving tables; the pole maintenance device further comprises a bird dropping cleaning assembly, the bird dropping cleaning assembly comprises second moving tables and a connecting frame, two second moving tables are arranged, the two second moving tables are slidably arranged in the second ring-shaped slide, and the connecting frame is provided with two. The present application realizes comprehensive and thorough cleaning of hardened bird dropping, and improves the cleaning and maintenance effect of the outer side of the pole.

Description

Technical Field

[0001] This invention relates to the field of power maintenance technology, and in particular to a pole maintenance device. Background Technology

[0002] Currently, most power lines transmit electricity by overhead power lines on poles. During daily use, metal poles are affected by external factors, and their surfaces will rust and oxidize. Therefore, it is necessary to regularly maintain and treat the surface of these poles.

[0003] During maintenance, the rust will be ground off and then recoated with anti-rust paint. This requires manual climbing to remove the rust, which is dangerous and inconvenient. Secondly, bird droppings will remain on the surface of the pole. Once dried and hardened, the droppings are difficult to remove, affecting the maintenance of the pole. Even after scraping, some bird droppings will remain on the surface.

[0004] Patent CN108086774A discloses a multifunctional utility pole maintenance device, mainly comprising a small round retaining ring, a large round bottom ring, and an operating device. It also includes an insertion locking mechanism, a leveling mechanism, a final locking device, a hinged locking device, a feeding mechanism, a lifting drive device, and a swing drive device. It can be quickly assembled, calibrated, and leveled on-site; adjustments are simple; it automatically applies paint and coding to the poles and paints slogans; it can quickly measure the verticality or tilt of the poles; it can quickly connect the three-phase power lines to the poles and collect detection data; disassembly is simple and convenient; it occupies little space after disassembly; it is easy to transport; it saves time and effort; and one person can complete the entire operation.

[0005] Patent CN116213173A discloses a cleaning and painting device for utility pole maintenance, including a frame symmetrically placed. The frame is equipped with a bidirectional screw, a guide shaft, a lower T-shaped square shaft, and a bearing seat. The bidirectional screw is threaded to the right side of the frame, the guide shaft is nested in the left side of the frame, and the lower T-shaped square shaft is symmetrically nested on both sides of the middle section of the frame. A U-shaped frame is fixed to the inner end of the lower T-shaped square shaft with screws. A pulley is interference-fitted to the inner end of the U-shaped frame via a bearing. A lower spring is fitted onto the lower T-shaped square shaft between the U-shaped frame and the inner wall of the frame. The bearing seats are symmetrically welded to both sides of the outer end of the frame. While these two patents achieve automatic painting of utility poles, they cannot achieve continuous rust removal and painting operations, and they cannot effectively remove bird droppings from the pole surface. Summary of the Invention

[0006] This invention proposes a pole maintenance device that solves the problems of existing technologies that require manual climbing to remove rust, which is dangerous and inconvenient; secondly, bird droppings remain on the surface of the pole, and once dried and hardened, they are difficult to remove, affecting the pole maintenance operation.

[0007] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0008] A pole maintenance device includes an annular housing, which is composed of two symmetrical semicircular rings. Multiple lifting rollers are provided on the inner ring surface of the annular housing, and a first annular slide and a second annular slide are provided on the outer ring surface of the annular housing. Three first moving platforms are slidably arranged in the first annular slide, and a grinding component, a spraying component, and a drying component are respectively installed on the three first moving platforms.

[0009] It also includes a bird droppings cleaning component, which includes a second movable platform and a connecting frame. There are two second movable platforms, which are slidably installed in the second annular slide. There are two connecting frames, which are respectively fixed to the two second movable platforms. An annular chamber is installed in the middle of the connecting frame. The annular chamber surrounds the outside of the pole, and a cleaning friction ring is provided on the inner side of the annular chamber.

[0010] Furthermore, a frustum ring is fixed to the top of the annular chamber. The frustum ring is a truncated cone-shaped ring that is larger at the top and smaller at the bottom. The radius of the lower end of the frustum ring is the same as the radius of the annular chamber. The cleaning friction ring is fixed to the frustum ring by a fixing rod. The inner diameter of the cleaning friction ring is the same as the inner diameter of the electric rod.

[0011] Furthermore, the cleaning friction ring is equipped with an ultrasonic vibration module.

[0012] Furthermore, the inner diameter of the annular compartment is larger than the outer diameter of the pole, and a bottom ring is sealed and fixed to the bottom of the annular compartment. The inner diameter of the bottom ring is the same as the outer diameter of the pole, and the bottom ring and the annular compartment form an annular space with the pole.

[0013] Furthermore, a liquid-absorbing ring is connected to the bottom of the bottom ring, and the inner diameter of the liquid-absorbing ring is the same as the outer diameter of the electric rod;

[0014] It also includes a cleaning scraper ring and a lower collection box. The upper side of the cleaning scraper ring is fixed to the outside of the annular chamber by a vertical rod. The inner diameter of the cleaning scraper ring is the same as the outer diameter of the pole.

[0015] The lower collection box is installed at the bottom of the connecting frame. The lower collection box is located below and outside the cleaning scraper ring. Multiple connecting pipes are connected to the bottom of the lower collection box.

[0016] Furthermore, the polishing assembly includes a first mounting plate and an electric polishing disc, wherein the first mounting plate is mounted on the first first movable stage, and the electric polishing disc is mounted on the first mounting plate.

[0017] Furthermore, the spraying assembly includes a liquid storage tank and a nozzle, the liquid storage tank being mounted on a second first movable platform, and the nozzle being mounted on the liquid storage tank;

[0018] The nozzle is mounted on the liquid storage tank in a height-adjustable manner, and the nozzle is connected to the interior of the liquid storage tank through a pipe.

[0019] Furthermore, the drying component is a drying fan, which is mounted on the third of the first movable platforms.

[0020] Furthermore, it also includes an annular collection box, which is installed on the top of the annular machine box. The annular collection box consists of two symmetrical semicircular rings. The inner diameter of the annular collection box is the same as the outer diameter of the electric pole. The annular collection box is located below the electric grinding disc.

[0021] Furthermore, the ultrasonic vibration module includes:

[0022] The liquid-based main control unit is configured to execute a submersible multimodal ultrasonic control strategy, the strategy including:

[0023] High-frequency cavitation mode for liquid applications: Dynamic frequency sweep within the 40kHz±2kHz band produces cavitation bubbles with diameters of 30-80μm, and the dynamic adjustment range of sound intensity density is 18-25W / cm². 2 ;

[0024] Low-frequency shear mode for liquid applications: outputs mechanical vibration waves of 0.8-1.2kHz, superimposed with a shear stress field of ±1.0mm amplitude;

[0025] Liquid corrosion resistant sensor array, comprising:

[0026] The acoustic impedance sensor, using a Hastelloy C276 housing, monitors the acoustic impedance value Z′ in a liquid medium in real time and dynamically corrects it based on the liquid density ρ and sound velocity c.

[0027] Z air ρ is the reference acoustic impedance in air. air For air density, c air The speed of sound in air;

[0028] Laser thickness sensor with a waterproof optical window;

[0029] The liquid adaptive adjustment module is configured as follows:

[0030] When Z′<2.0MRayl and the dirt thickness δ<3mm, the activation liquid uses the high-frequency cavitation mode;

[0031] When Z′≥4.0MRayl or δ≥3mm, switch to the liquid low-frequency shear mode;

[0032] Dynamically compensated frequency based on liquid temperature T′:

[0033] f corrected =f0×[1-β(T′-25)], where β=45ppm / ℃, f corrected The corrected ultrasonic frequency is f0, the initial set frequency is f0, and the temperature compensation coefficient is β.

[0034] Liquid safety module, including:

[0035] The cavitation monitoring unit triggers frequency reduction protection when the 2f / 3f harmonic energy ratio is greater than 30%, where 2f / 3f is the energy ratio of the second and third harmonics.

[0036] Magnetofluidic rotary seal structure, pressure resistance ≥1.5MPa, leakage rate <1×10-6Pa·m 3 / s;

[0037] The degassing agent injection unit maintains a dissolved oxygen content of <5ppm.

[0038] The positive effects of this invention are:

[0039] It effectively cleans bird droppings from the surface of utility poles. After cleaning, the areas with residual bird droppings are soaked while ultrasonic vibration is used for cleaning. During the next operation, friction vibration is used to further clean the area, achieving a thorough cleaning of bird droppings.

[0040] This ensures that bird droppings on the poles can be completely cleaned and scraped off, preventing further corrosion of the pole surface by residual bird droppings and greatly improving the effectiveness of pole maintenance. Attached Figure Description

[0041] Figure 1 This is a schematic diagram of the first structure of the pole maintenance device of the present invention;

[0042] Figure 2 This is a schematic diagram of the first structure of the grinding component, spraying component, and drying component in this invention;

[0043] Figure 3 This is a second structural schematic diagram of the grinding component, spraying component, and drying component in this invention;

[0044] Figure 4 This is a schematic diagram of the second structure of the pole maintenance device of the present invention;

[0045] Figure 5 This is a schematic diagram of the third structure of the pole maintenance device of the present invention;

[0046] Figure 6 This is a schematic diagram of the bird droppings cleaning component structure in this invention;

[0047] Figure 7 This is a cross-sectional view of the bird droppings cleaning component in this invention;

[0048] In the diagram: 1. Annular housing; 2. First annular slide; 3. First moving stage; 4. First mounting plate; 5. Electric grinding disc; 6. Liquid storage tank; 7. Nozzle; 8. Annular collection box; 9. Lifting roller; 10. Drying fan; 11. Second annular slide; 12. Second moving stage; 13. Connecting frame; 14. Annular chamber; 15. Frustum ring; 16. Cleaning friction ring; 17. Bottom ring; 18. Liquid suction ring; 19. Cleaning scraper ring; 20. Lower collection box; 21. Connecting pipe. Detailed Implementation

[0049] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0050] Example 1

[0051] Combination Figure 1-7 As shown, a pole maintenance device includes an annular housing 1, which is composed of two symmetrical semicircular rings. During operation, the two symmetrical semicircular rings need to be wrapped around the outside of the pole and assembled and fixed by bolts.

[0052] The annular collection box 8 is also composed of two symmetrical semicircular rings, which can be disassembled and fixed.

[0053] The annular chamber 14, the frustum ring 15, the cleaning friction ring 16, the bottom ring 17, the liquid suction ring 18, the cleaning scraper ring 19, and the lower collection box 20 are all assembled from two symmetrical parts, which makes it easy for the device to be installed on the outside of the pole during use.

[0054] Multiple lifting rollers 9 are provided on the inner ring surface of the annular housing 1. When the annular housing 1 is installed around the outside of the pole, the lifting rollers 9 are attached to the outer surface of the pole, which can drive the device to lift and lower.

[0055] The outer ring surface of the ring box 1 is provided with a first annular slide 2 and a second annular slide 11. Three first moving platforms 3 are slidably arranged in the first annular slide 2. A grinding component, a spraying component and a drying component are respectively installed on the three first moving platforms 3.

[0056] It also includes a bird droppings cleaning component, which includes a second movable platform 12 and a connecting frame 13. There are two second movable platforms 12, which are slidably installed in the second annular slide rail 11. There are two connecting frames 13, which are respectively fixed to the two second movable platforms 12. An annular chamber 14 is installed in the middle of the connecting frame 13. The annular chamber 14 surrounds the outside of the pole. A cleaning friction ring 16 is provided on the inner side of the annular chamber 14.

[0057] A frustum ring 15 is fixed to the top of the annular chamber 14. The frustum ring 15 is a frustum-shaped ring that is larger at the top and smaller at the bottom. The radius of the lower end of the frustum ring 15 is the same as the radius of the annular chamber 14. A cleaning friction ring 16 is fixed to the frustum ring 15 by a fixing rod. The inner diameter of the cleaning friction ring 16 is the same as the inner diameter of the electric rod.

[0058] The cleaning friction ring 16 is equipped with an ultrasonic vibration module. During the friction cleaning process, ultrasonic vibration cleaning is combined to achieve a thorough cleaning effect on bird droppings.

[0059] The inner diameter of the annular compartment 14 is larger than the outer diameter of the pole. The bottom of the annular compartment 14 is sealed and fixed with a bottom ring 17. The inner diameter of the bottom ring 17 is the same as the outer diameter of the pole. The bottom ring 17 and the annular compartment 14 form an annular space with the pole.

[0060] A liquid-absorbing ring 18 is connected to the bottom of the bottom ring 17, and the inner diameter of the liquid-absorbing ring 18 is the same as the outer diameter of the pole.

[0061] It also includes a cleaning scraper 19 and a lower collection box 20. The upper side of the cleaning scraper 19 is fixed to the outside of the annular chamber 14 by a vertical rod. The inner diameter of the cleaning scraper 19 is the same as the outer diameter of the pole.

[0062] The lower collection box 20 is installed at the bottom of the connecting frame 13. The lower collection box 20 is located below the outer side of the cleaning scraper ring 19. Multiple connecting pipes 21 are connected to the bottom of the lower collection box 20.

[0063] The lower end of the connecting pipe 21 can be connected to an external vacuum cleaner fan, so that a downward airflow can be formed in the collection box 20;

[0064] In this embodiment, the device is installed on the outside of the pole. The annular box 1 moves upward to the position outside the pole to be maintained via the lifting roller 9. During the movement, the cleaning scraper ring 19 moves against the outer surface of the pole, scraping off the rusty, peeling paint, dust and large pieces of bird droppings. After these debris are scraped off, they fall downward, creating a downward airflow in the collection box 20. As a result, these debris fall downward into the collection box 20 and are collected, avoiding the debris from falling from the air and causing environmental pollution during the cleaning process.

[0065] After being scraped by the cleaning scraper ring 19, the device slowly moves downward. During the downward movement, the cleaning scraper ring 19 scrapes the debris down. After scraping, due to the long-term adhesion of bird droppings, some bird droppings will still remain on the surface of the pole after the cleaning scraper ring 19 has removed them.

[0066] Further, the following method is used: Before the device moves to scrape off the bird droppings, a sufficient amount of bird droppings cleaning solution is added to the inside of the annular chamber 14. The cleaning solution then remains in the space enclosed by the annular chamber 14 and the bottom ring 17. Thus, the cleaning solution in the space soaks the surface bird droppings remaining on the pole surface. After the cleaning scraper ring 19 scrapes off the bird droppings, it moves downwards, and the annular chamber 14 moves to the position where the surface bird droppings remain. It then pauses its downward movement, and the cleaning solution soaks the position. During the soaking process, the cleaning solution fully reacts with the bird droppings remaining on the pole surface, causing the remaining bird droppings to dissolve. This cycle repeats, with the cleaning scraper ring 19 scraping downwards for a certain distance, then pausing, and the annular chamber 14 soaking the scraped area, achieving a thorough soaking and dissolving reaction of the bird droppings.

[0067] During the soaking reaction of the cleaning solution and bird droppings, in order to further accelerate and thoroughly clean the bird droppings, the cleaning friction ring 16 will wrap around the outer surface of the pole. In the static state, the cleaning friction ring 16 performs ultrasonic cleaning on the bird droppings, which, together with the cleaning solution, achieves efficient cleaning of bird droppings. When the soaking ends and moves downward, the cleaning friction ring 16 will move downward to adhere to the surface of the pole. During the movement, it will further form a friction cleaning motion on the surface of the pole, further avoiding bird droppings residue.

[0068] A liquid-absorbing ring can be connected to the upper side of the cleaning friction ring 16. After the pole surface is soaked and cleaned, the liquid-absorbing ring moves downward to absorb and clean the residual cleaning liquid on the surface, thus avoiding the cleaning liquid remaining on the pole surface and affecting the subsequent anti-rust paint spraying.

[0069] As the annular chamber 14 moves downward, due to the gap between the bottom ring 17 at the bottom of the annular chamber 14 and the surface of the pole, in order to prevent the cleaning fluid from flowing out during operation, the suction ring 18 will seal the bottom of the bottom ring 17. At the same time, the top of the suction ring 18 has a sealing strip, which will seal the gap between the bottom of the bottom ring 17 and the surface of the pole. Furthermore, during the downward movement, due to the unevenness of the surface of the pole, some cleaning fluid may flow downward. The suction ring 18 will move downward simultaneously to absorb the cleaning fluid and prevent the cleaning fluid from flowing out from the bottom.

[0070] The conical structure of the truncated ring 15 allows sufficient cleaning fluid to be stored in the annular chamber 14, enabling the cleaning friction ring 16 to be immersed in the cleaning fluid for better bird droppings cleaning effect.

[0071] The above method effectively cleans bird droppings from the surface of utility poles. After cleaning, the areas with residual bird droppings are soaked while ultrasonic vibration is used for cleaning. During the next operation, friction vibration is used to further clean the poles, achieving a thorough cleaning of the bird droppings.

[0072] Example 2

[0073] After cleaning the bird droppings area using the cleaning friction ring 16, the device moves downwards, and then the grinding assembly, spraying assembly, and drying assembly move to the position where cleaning is complete.

[0074] Combination Figure 1-7 As shown, the difference between this embodiment and embodiment 1 is that the grinding assembly includes a first mounting plate 4 and an electric grinding disc 5. The first mounting plate 4 is mounted on the first first moving stage 3, and the electric grinding disc 5 is mounted on the first mounting plate 4.

[0075] The spraying assembly includes a liquid storage tank 6 and a nozzle 7. The liquid storage tank 6 is mounted on the second first moving stage 3, and the nozzle 7 is mounted on the liquid storage tank 6.

[0076] The nozzle 7 is mounted on the liquid storage tank 6 in a height-adjustable manner, and the nozzle 7 is connected to the interior of the liquid storage tank 6 through a pipe.

[0077] The drying component is a drying fan 10, which is mounted on the third first moving platform 3.

[0078] It also includes an annular collection box 8, which is installed on the top of the annular machine box 1. The annular collection box 8 consists of two symmetrical semicircular rings. The inner diameter of the annular collection box 8 is the same as the outer diameter of the electric pole. The annular collection box 8 is located below the electric grinding disc 5.

[0079] Then the electric grinding disc 5 is attached to the outer surface of the pole and begins to rotate and grind. During the grinding process, the first moving table 3 moves in the first annular slide 2 of the annular box 1, thereby driving the electric grinding disc 5 to grind around the outer surface of the pole, thus achieving the grinding of rust on the outer surface of the pole.

[0080] The annular collection box 8 consists of two symmetrical semicircular rings. The inner diameter of the annular collection box 8 is the same as the outer diameter of the pole. During the grinding process of the electric grinding disc 4, the rust powder that is ground off will fall into the annular collection box 8, preventing the grinding powder from falling from a height.

[0081] The spraying assembly includes a second moving stage 5, a liquid storage tank 6, and a nozzle 7. The second moving stage 5 is slidably disposed on the annular embedded track of the annular housing 1. The liquid storage tank 6 is mounted on the second moving stage 5, and the nozzle 7 is mounted on the liquid storage tank 6.

[0082] For the sanded area, the nozzle 7 can be used directly to touch up the paint, achieving a seamless and automatic operation of sanding and touch-up.

[0083] The nozzle 7 is mounted on the liquid storage tank 6 in a height-adjustable manner, and the nozzle 7 is connected to the interior of the liquid storage tank 6 through a pipe.

[0084] The height of nozzle 7 can be locally adjusted. For certain positions on the pole, nozzle 7 can be raised and lowered for fine-tuning.

[0085] Example 3

[0086] The difference between this embodiment and Embodiment 2 is that the ultrasonic vibration module includes:

[0087] The liquid-based main control unit is configured to execute a submersible multimodal ultrasonic control strategy, the strategy including:

[0088] High-frequency cavitation mode for liquid applications: Dynamic frequency sweep within the 40kHz±2kHz band produces cavitation bubbles with diameters of 30-80μm, and the dynamic adjustment range of sound intensity density is 18-25W / cm². 2 ;

[0089] Low-frequency shear mode for liquid applications: outputs mechanical vibration waves of 0.8-1.2kHz, superimposed with a shear stress field of ±1.0mm amplitude;

[0090] Liquid corrosion resistant sensor array, comprising:

[0091] The acoustic impedance sensor, using a Hastelloy C276 housing, monitors the acoustic impedance value Z′ in a liquid medium in real time and dynamically corrects it based on the liquid density ρ and sound velocity c.

[0092] Z air ρ is the reference acoustic impedance in air. air For air density, c air The speed of sound in air;

[0093] Laser thickness sensor with a waterproof optical window;

[0094] The liquid adaptive adjustment module is configured as follows:

[0095] When Z′<2.0MRayl and the dirt thickness δ<3mm, the activation liquid uses the high-frequency cavitation mode;

[0096] When Z′≥4.0MRayl or δ≥3mm, switch to the liquid low-frequency shear mode;

[0097] Dynamically compensated frequency based on liquid temperature T′:

[0098] f corrected=f0×[1-β(T′-25)], where β=45ppm / ℃, f corrected The corrected ultrasonic frequency is f0, the initial set frequency is f0, and the temperature compensation coefficient is β.

[0099] Liquid safety module, including:

[0100] The cavitation monitoring unit triggers frequency reduction protection when the 2f / 3f harmonic energy ratio is greater than 30%, where 2f / 3f is the energy ratio of the second and third harmonics.

[0101] Magnetofluidic rotary seal structure, pressure resistance ≥1.5MPa, leakage rate <1×10-6Pa·m 3 / s;

[0102] The degassing agent injection unit maintains a dissolved oxygen content of <5ppm.

[0103] In this embodiment, the ultrasonic vibration module achieves efficient and stable cleaning of the pole surface through a synergistic mechanism of multimodal ultrasonic coupling, dynamic parameter feedback, and active safety protection. Its core working principle is as follows:

[0104] Subsurface multimodal ultrasound coupling:

[0105] High-frequency cavitation mode (40kHz±2kHz): Dense cavitation bubbles (30-80μm) are excited in the liquid, and the micro-jet (velocity>100m / s) and shock wave (pressure>10MPa) generated by the collapse of cavitation bubbles are used to remove contaminants.

[0106] Low-frequency shear mode (0.8-1.2kHz): Shear stress field (>15kPa) is formed in the liquid by mechanical vibration wave (amplitude ±1.0mm), which breaks the crystal structure of hardened deposits.

[0107] Dynamic feedback adjustment:

[0108] Acoustic impedance-thickness combined criterion:

[0109] When the acoustic impedance value Z' in the liquid is less than 2.0 MRayl and the thickness of the contaminant δ is less than 3 mm, it is determined to be a soft contaminant (such as grease), and the high-frequency cavitation mode is activated.

[0110] When Z'≥4.0MRayl or δ≥3mm, it is determined to be a hard deposit (such as calcium scale), and the low-frequency shear mode is switched.

[0111] Temperature compensation mechanism: Real-time monitoring of liquid temperature T', correction of ultrasonic frequency according to formula, and compensation for temperature drift effect of piezoelectric ceramic.

[0112] Security protection mechanism:

[0113] Cavitation monitoring: By detecting a 2f / 3f harmonic energy ratio >30%, cavitation bubble collapse overload is determined, triggering frequency reduction protection.

[0114] Sealing and degassing: The magnetic fluid rotary seal prevents liquid infiltration, and the degassing agent injection reduces dissolved oxygen content and inhibits cavitation damage.

[0115] Among them, the liquid main control unit

[0116] Hardware architecture:

[0117] Core controller: STM32H743VIT6 microcontroller (480MHz clock speed, supports floating-point operations), running FreeRTOS real-time system.

[0118] Ultrasonic drive circuit:

[0119] High-frequency channel: The AD9834 DDS module generates a 38-42kHz sine wave, which is then driven by the TPA3255 power amplifier (output power 0-300W) to drive the piezoelectric ceramic sheet.

[0120] Low-frequency channel: The DRV2605L haptic driver outputs a 0.8-1.2kHz PWM wave to drive a linear electromagnetic vibrator (stroke ±1.0mm).

[0121] Dynamic frequency sweep algorithm:

[0122] C language

[0123] / / Sweep step rate: 1kHz / ms

[0124] for(freq=38000; freq<=42000; freq+=10){AD9834_SetFrequency(freq);

[0125] vTaskDelay(1 / portTICK_PERIOD_MS);}

[0126] Cavitation bubble control:

[0127] Sound intensity density adjustment: The power amplifier current is controlled via PID closed-loop control to maintain the sound intensity density at 18-25 W / cm². 2 .

[0128] Optimization of cavitation bubble size: (P=18-25W / cm 2 ρ=1000-1200kg / m 3 Ensure the cavitation bubble diameter is 30-80μm (the optimal cleaning size in liquids).

[0129] Liquid corrosion resistant sensor array

[0130] Acoustic impedance sensor

[0131] Shell material: Hastelloy C276 (UNS N10276), chemical composition: Ni≥57%, Mo≥15%, Cr≥15%, Fe≤7%.

[0132] Acoustic impedance correction algorithm: (Zair = 0.0004MRayl)

[0133] Signal processing: ADS1278 24-bit ADC sampling, digital filtering (cutoff frequency 50kHz).

[0134] Laser thickness sensor:

[0135] Optical window: Sapphire (Al2O3 single crystal), 8mm in diameter, 1.2mm thick, with a MgF2 antireflective coating (550nm thick, 1.38 refractive index) on the surface.

[0136] The thickness measurement principle is based on the existing laser ranging principle.

[0137] Liquid adaptive adjustment module

[0138] Control logic flow:

[0139] Python language

[0140] def adaptive_control(Z_prime,delta,T_prime):

[0141] if Z_prime < 2.0 and delta < 3:

[0142] set_mode("high_freq")# 40kHz frequency sweep, sound intensity density 18-25W / cm² 2

[0143] elif Z_prime>=4.0or delta>=3:

[0144] set_mode("low_freq")# 1kHz vibration, amplitude ±1.0mm

[0145] #Temperature Compensation

[0146] f_corrected=40000*(1-45e-6*(T_prime-25))

[0147] adjust_frequency(f_corrected)

[0148] Temperature compensation circuit:

[0149] The PT1000 platinum resistance temperature sensor (accuracy ±0.1℃) acquires temperature signals via an ADS1248 ADC.

[0150] Compensation coefficient β = 45ppm / ℃, ensuring frequency stability: Δf / f0 = |45×10 -6 ×(T′-25)∣≤0.5%(-40℃≤T′≤80℃)

[0151] Liquid safety module

[0152] Cavitation monitoring unit:

[0153] Harmonic detection circuit: AD8336 variable gain amplifier + AD7606 16-bit ADC, to detect the second (80kHz) and third (120kHz) harmonic components of 40kHz ultrasound.

[0154] Protection trigger threshold: \frac{E_{2f}+E_{3f}}{E_{total}}}>30%\quad(\text{10% frequency reduction, lasting 5 seconds})

[0155] Magnetic fluid rotary seal:

[0156] Magnetofluid formulation: Perfluoropolyether (PFPE) base liquid + Fe3O4@SiO2 core-shell magnetic particles (particle size 10nm, mass fraction 8%).

[0157] Sealing structure: Three-stage stepped magnetic poles (magnetic field strength 0.8T→1.2T→1.5T), sealing gap ≤0.05mm, leakage rate <1×10 -6 Pa·m 3 / s.

[0158] Degassing agent injection unit:

[0159] Degassing agent components: sodium sulfite (60%), sodium dodecyl sulfonate (15%), silane coupling agent KH-550 (25%).

[0160] Injection strategy:

[0161] Initially, pulse injection (1 mL / injection, 2 Hz) rapidly reduced dissolved oxygen to below 5 ppm.

[0162] Steady-state injection at a constant rate (0.2 mL / min) to maintain dissolved oxygen concentration <3 ppm.

[0163] Example

[0164] Application scenario: Cleaning of utility pole surfaces in substations

[0165] Operating parameters:

[0166] Cleaning solution: 5% citric acid solution (pH=2.5), temperature 50℃, flow rate 1.2m / s

[0167] Initial contaminant: Sea salt scale (Z' = 4.5 M Nayl, δ = 5 mm)

[0168] Operation process:

[0169] The sensor detects Z'≥4.0MRayl and δ≥3mm, activating the low-frequency shear mode (1kHz, ±1.0mm).

[0170] After 30 minutes, the dirt thickness decreased to 2mm, and the mode was switched to high-frequency cavitation mode (40kHz, 22W / cm). 2 ).

[0171] Real-time monitoring of the 2f / 3f harmonic energy ratio (stable at 18%), without the need to trigger frequency reduction protection.

[0172] result:

[0173] Cleaning time is reduced to 45 minutes (compared to 120 minutes using traditional methods).

[0174] The surface roughness Ra decreased from 12.5 μm to 0.8 μm.

[0175] The liquid ultrasonic vibration module of the present invention achieves efficient and non-destructive cleaning in complex liquid environments through multimodal ultrasonic coupling and intelligent feedback control.

[0176] The following effects are achieved: cross-medium frequency matching (40kHz liquid optimized frequency band); acoustic-optical joint feedback mechanism (Z'-δ dual-parameter decision); cavitation-sealing-degassing synergistic protection (three-in-one safety system).

[0177] The above-described embodiments are detailed and specific, illustrating preferred embodiments of the present invention. They are only used to illustrate the technical ideas and features of the present invention, with the aim of enabling those skilled in the art to understand the content of the present invention and implement it accordingly. However, they are not limited to the present invention, and the patent scope of the present invention cannot be limited by this embodiment alone. That is, any equivalent changes or modifications made to the spirit disclosed in the present invention, without departing from the structure of the present invention, such as local improvements within the system and modifications or transformations between subsystems, are still within the patent scope of the present invention.

Claims

1. A pole maintenance device, characterized in that, The device includes a ring-shaped housing (1), which is composed of two symmetrical semi-circular rings. Multiple lifting rollers (9) are provided on the inner ring surface of the ring-shaped housing (1). A first annular slide (2) and a second annular slide (11) are provided on the outer ring surface of the ring-shaped housing (1). Three first moving platforms (3) are slidably arranged in the first annular slide (2). A grinding component, a spraying component and a drying component are respectively installed on the three first moving platforms (3). It also includes a bird droppings cleaning component, which includes a second movable platform (12) and a connecting frame (13). There are two second movable platforms (12), which are slidably installed in the second annular slide (11). There are two connecting frames (13), which are respectively fixed to the two second movable platforms (12). An annular chamber (14) is installed in the middle of the connecting frame (13). The annular chamber (14) surrounds the outside of the pole. A cleaning friction ring (16) is provided on the inner side of the annular chamber (14). The inner diameter of the annular chamber (14) is larger than the outer diameter of the pole. A bottom ring (17) is sealed and fixed to the bottom of the annular chamber (14). The inner diameter of the bottom ring (17) is the same as the outer diameter of the pole. The bottom ring (17) and the annular chamber (14) form an annular space with the pole. The bottom of the bottom ring (17) is connected to a liquid-absorbing ring (18), the inner diameter of which is the same as the outer diameter of the electric rod; It also includes a cleaning scraper ring (19) and a lower collection box (20). The upper side of the cleaning scraper ring (19) is fixed to the outside of the annular chamber (14) by a vertical rod. The inner diameter of the cleaning scraper ring (19) is the same as the outer diameter of the pole. The lower collection box (20) is installed at the bottom of the connecting frame (13). The lower collection box (20) is located below the outside of the cleaning scraper ring (19). The bottom of the lower collection box (20) is connected to multiple connecting pipes (21).

2. The pole maintenance device according to claim 1, characterized in that, A frustum ring (15) is fixed to the top of the annular chamber (14). The frustum ring (15) is a frustum-shaped ring that is larger at the top and smaller at the bottom. The radius of the lower end of the frustum ring (15) is the same as the radius of the annular chamber (14). The cleaning friction ring (16) is fixed to the frustum ring (15) by a fixing rod. The inner diameter of the cleaning friction ring (16) is the same as the outer diameter of the electric pole.

3. A pole maintenance device according to claim 2, characterized in that, An ultrasonic vibration module is provided on the cleaning friction ring (16).

4. A pole maintenance device according to claim 1, characterized in that, The polishing assembly includes a first mounting plate (4) and an electric polishing disc (5). The first mounting plate (4) is mounted on the first first moving stage (3), and the electric polishing disc (5) is mounted on the first mounting plate (4).

5. A pole maintenance device according to claim 4, characterized in that, The spraying assembly includes a liquid storage tank (6) and a nozzle (7). The liquid storage tank (6) is mounted on the second first moving platform (3), and the nozzle (7) is mounted on the liquid storage tank (6). The nozzle (7) is mounted on the liquid storage tank (6) in a liftable manner, and the nozzle (7) is connected to the interior of the liquid storage tank (6) through a pipe.

6. A pole maintenance device according to claim 5, characterized in that, The drying component is a drying fan (10), which is mounted on the third first moving platform (3).

7. A pole maintenance device according to claim 6, characterized in that, It also includes an annular collection box (8), which is installed on the top of the annular machine box (1). The annular collection box (8) is composed of two symmetrical semicircular rings. The inner diameter of the annular collection box (8) is the same as the outer diameter of the electric pole. The annular collection box (8) is located below the electric grinding disc (5).

8. A pole maintenance device according to claim 3, characterized in that, The ultrasonic vibration module includes: The liquid-based main control unit is configured to execute a submersible multimodal ultrasonic control strategy, the strategy including: High-frequency cavitation mode for liquid: Dynamic frequency sweep within the 40kHz±2kHz frequency band, generating cavitation bubbles with diameters of 30-80μm, and the dynamic adjustment range of sound intensity density is 18-25W / cm². Low-frequency shear mode for liquid applications: outputs mechanical vibration waves of 0.8-1.2kHz, superimposed with a shear stress field of ±1.0mm amplitude; Liquid corrosion resistant sensor array, comprising: The acoustic impedance sensor, using a Hastelloy C276 housing, monitors the acoustic impedance value Z′ in a liquid medium in real time and dynamically corrects it based on the liquid density ρ and the sound velocity c. ,in air density, The speed of sound in air; Laser thickness sensor with a waterproof optical window; The liquid adaptive adjustment module is configured as follows: when When the concentration is <2.0 MRayl and the dirt thickness δ<3 mm, the activation solution uses the high-frequency cavitation mode; when When the value is ≥4.0MRayl or δ≥3mm, switch to the liquid low-frequency shear mode; Based on the liquid temperature T Dynamic compensation frequency: ,in =45ppm / ℃, This is the corrected ultrasonic frequency. To set the initial frequency, This is the temperature compensation coefficient; Liquid safety module, including: The cavitation monitoring unit triggers frequency reduction protection when the 2f / 3f harmonic energy ratio is greater than 30%, where 2f / 3f is the energy ratio of the second and third harmonics. Magnetofluidic rotary seal structure, pressure resistance ≥1.5MPa, leakage rate <1×10⁻⁶ -6 Pa·m³ / s; The degassing agent injection unit maintains a dissolved oxygen content of <5ppm.

Images