Pipeline inner wall spraying device with cleaning function

Abstract

The invention discloses a pipeline inner wall spraying device with a cleaning function, and relates to the technical field of wind power tower cylinder machining, the pipeline inner wall spraying device comprises a bottom frame, a carrying mechanism, a material storage mechanism and a cleaning mechanism, the top of the bottom frame is provided with a wind power tower cylinder, the inner wall of the wind power tower cylinder is provided with the carrying mechanism, one side of the carrying mechanism is provided with the material storage mechanism, and the cleaning mechanism is arranged on the other side of the carrying mechanism. A cleaning mechanism and a spraying device are annularly arranged on the front face of the material storage mechanism, and the cleaning mechanism and the spraying device are annularly distributed at equal intervals in a staggered mode relative to the front face of the material storage mechanism. Through the arrangement of the carrying mechanism, the material storage mechanism and the cleaning mechanism, after the material storage mechanism is adjusted to the center point of the inner wall of the wind power tower drum through the carrying mechanism, the inner wall of the wind power tower drum is cleaned through the cleaning mechanism, the inner wall of the wind power tower drum scraped by a scraping plate is blown by a spray head, and dust and chippings adhering to the inner wall of the wind power tower drum are cleaned; secondary pollution of dust to the interior of the tower drum is avoided, and the cleanliness of the interior of the wind power tower drum is improved.

Description

Technical Field

[0001] The invention relates to the technical field of wind power tower processing, and in particular to a pipeline inner wall spraying device with a cleaning function. Background Art

[0002] Wind turbine towers mainly support wind turbines and absorb vibrations. The outer and inner walls of wind turbine towers are painted. Wind turbine towers are exposed to wind and sun in a flat environment, which accelerates the aging of the wind turbine tower coating, causing the old coating of the wind turbine tower to powder, fall off, bubble, and loosen, resulting in rust on the wind turbine tower.

[0003] When repairing the inner wall of the wind turbine tower, the old coating and rust on the inner wall of the wind turbine tower are scraped off, and then the rough texture of the cleaned inner wall of the wind turbine tower is sprayed with primer, so that the primer can be riveted with the inner wall of the wind turbine tower through the rough texture, so that the primer can have good bonding strength.

[0004] When the existing pipeline inner wall spraying device is used to spray the wind turbine tower, if the rough texture on the inner wall of the wind turbine tower is not cleaned thoroughly, the old coating and rust remaining inside the rough texture will weaken the adhesion effect of the paint, making the primer after spraying prone to cracking and falling off. Manual cleaning of the inner wall of the wind turbine tower is time-consuming and labor-intensive, and at the same time affects the flatness of the primer after spraying, affecting the repair work of the wind turbine tower. Summary of the invention

[0005] The object of the present invention is to provide a pipe inner wall spraying device with a cleaning function to solve the problems raised in the above-mentioned background technology.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: A pipe inner wall spraying device with a cleaning function, comprising a base frame, a carrying mechanism, a material storage mechanism and a cleaning mechanism; A wind turbine tower is arranged on the top of the base frame, a carrying mechanism is arranged on the inner wall of the wind turbine tower, a storage mechanism is arranged on one side of the carrying mechanism, a cleaning mechanism and a spraying device are arranged in a ring shape on the front of the storage mechanism, and the cleaning mechanism and the spraying device are equidistantly and staggeredly distributed about the front ring of the storage mechanism.

[0007] The carrying mechanism includes a telescopic sleeve rod, one end of the telescopic sleeve rod is connected to the material storage mechanism, a side plate is provided at the end of the telescopic sleeve rod away from the material storage mechanism, a rotating rod is provided on the side of the side plate away from the telescopic sleeve rod, a telescopic rod is provided on one side of the rotating rod, a sliding groove is provided on one side of the side plate, one end of the rotating rod is clamped with the inner wall of the sliding groove, a connecting card plate is provided on the other end of the rotating rod, a supporting rotating plate is hinged on one side of the connecting card plate, and the other side of the connecting card plate is clamped with the side plate, a roller is connected to one side of the supporting rotating plate through a bearing, a motor is provided on the central rotating shaft and the top of the roller, and an angle of 135° is set between the roller and the supporting rotating plate. The roller is deflected by the motor on the top of the roller so that the bottom of the roller is tangent to the inner wall of the wind turbine tower. The telescopic sleeve is extended and retracted to push the side plate to move. The roller rolls along the inner wall of the wind turbine tower so that the rollers on the top and bottom of the side plate are both in contact with the inner wall of the wind turbine tower. At the same time, the length of the telescopic rod is controlled to adjust the distance between the rollers on the top and bottom of the side plate, so that the storage mechanism moves quickly to the center point of the wind turbine tower. The roller is deflected by the motor on the top of the roller so that the bottom of the roller is tangent to the measured section of the wind turbine tower. The motor-driven carrying mechanism of the roller center axis moves along the inner wall of the wind turbine tower, and the inner wall of the wind turbine tower is evenly sprayed by rotating the spraying device. According to the change in the diameter of the inner wall of the wind turbine tower, the length of the telescopic rod is adjusted so that the two ends of the telescopic rod drive the rotating rod to deflect synchronously, and the rotating rod drives the rollers at the top and bottom of the side panels to move synchronously, ensuring that the storage mechanism is stably located at the center point of the wind turbine tower, ensuring that the spraying device sprays the inner wall of the wind turbine tower evenly, and the spraying device is a nozzle for spraying.

[0008] The rotating rods are provided with two groups, each group is provided with two, and each group of the rotating rods is hinged through an equally divided point, and the two equally divided points of the rotating rods are respectively connected to the two ends of the telescopic rod, and the telescopic rod adopts an electric telescopic rod, and pressure sensors are provided at both ends of the telescopic rod. When the carrying mechanism moves along the inner wall of the wind turbine tower, the inner wall diameter of the wind turbine tower changes continuously, so that the pressure sensor provided in the telescopic rod provides an electrical signal to the telescopic rod, and then controls the extension and contraction of the telescopic rod, ensuring that the roller fits the inner wall of the wind turbine tower, so that the spraying device can operate stably and reduce the shaking of the spraying device.

[0009] The storage mechanism includes a storage box, both sides of which are connected to the side panels, a fan is arranged at the back of the storage box, the output shaft of the motor in the fan is connected to a connecting rod through a coupling, one end of the connecting rod is provided with a stirring blade, and the end of the connecting rod away from the stirring blade is provided with a hydraulic cylinder. The paint to be sprayed is put into the storage box, and then the stirring blade is driven to rotate by the motor in the fan through the connecting rod, and the stirring blade mixes the paint evenly to avoid the problem of deposition and stratification caused by the static paint, and at the same time, the inner wall of the storage box is scraped to reduce the adhesion of the paint to the inner wall of the storage box.

[0010] Four hydraulic cylinders are provided, and the hydraulic cylinders are evenly distributed in a ring about one end of the connecting rod. The hydraulic cylinders, the fan, the telescopic rod, the telescopic sleeve rod and the pressure sensor are electrically connected. The telescopic length of the hydraulic cylinder is controlled by the telescopic length of the telescopic rod and the telescopic sleeve rod, so that the cleaning mechanism fits the inner wall of the wind turbine tower. The pressure sensors at both ends of the telescopic rod change the diameter of the inner wall of the wind turbine tower, and the length of the hydraulic cylinder is synchronously adjusted to ensure that the cleaning mechanism fits the inner wall of the wind turbine tower.

[0011] The cleaning mechanism includes a shell, the shell is hinged to one end of the hydraulic cylinder away from the storage box, a collecting box is arranged inside the shell, two collecting boxes are arranged, the collecting boxes are symmetrically distributed about the inner wall of the shell, a nozzle is arranged between the collecting boxes, a scraper is arranged inside the shell, hot wires are arranged equidistantly in a straight line inside the scraper, baffles are hinged on both sides of the shell, and a block is arranged on the side of the baffle close to the scraper. The cleaning mechanism is driven by the hydraulic cylinder to fit with the inner wall of the wind turbine tower, so that the cleaning mechanism deflects along the hinge between the shell and the hydraulic cylinder, so that the scraper fits with the inner wall of the wind turbine tower, which is convenient for the scraper to quickly scrape off the powdered paint surface on the inner wall of the wind turbine tower, thereby improving the efficiency of cleaning the inner wall of the wind turbine tower.

[0012] The collection box is snap-fitted with the inner wall of the shell, and an opening is provided on one side of the collection box close to the baffle, and a one-way rotating plate is provided on the inner wall of the opening, and a filter screen is provided between the scraper and the nozzle, and the filter screen is connected to the collection box. The nozzle blows the inner wall of the wind turbine tower after the scraper has scraped it, and the dust and debris adhering to the inner wall of the wind turbine tower are cleaned, and at the same time, a Bernoulli effect is generated between the nozzle and the scraper, so that suction is generated between the baffle and the scraper, and the dust and debris on one side of the scraper are sucked into the collection box by suction, and the dust falls into the collection box and is filtered through the filter screen, and then the collection box is pulled out along one side of the shell, and the dust and debris inside the collection box are poured out, which is convenient for the user to handle in a centralized manner.

[0013] The block includes a first block and a second block, one side of the first block is connected to the baffle, the other side of the first block is connected to the second block, the side of the second block away from the first block is connected to the scraper, and the side of the first block close to the second block is provided with a plurality of strip grooves, and the strip grooves are horizontally equidistantly distributed with respect to one side of the first block. The groove between the first baffle and the second block reduces the air intake diameter between the baffle and the scraper, improves the suction force between the baffle and the scraper, and improves the adsorption efficiency of dust and debris.

[0014] The nozzle is connected to the fan through a conduit, and the fan is connected to the storage box through a conduit. When the cleaning mechanism cleans the inner wall of the wind turbine tower, the motor in the fan drives the cleaning mechanism to rotate along the inner wall of the wind turbine tower through a connecting rod, and the gas blown by the fan is sprayed out from the nozzle. While cleaning the inner wall of the wind turbine tower, the connecting rod drives the stirring blade to mix the paint in the storage box, thereby ensuring the quality of the subsequent spraying device spraying the inner wall of the wind turbine tower.

[0015] Compared with the prior art, the beneficial effects achieved by the present invention are: 1. Through the setting of the carrying mechanism and the storage mechanism, the device is suitable for processing the inner wall of wind turbine towers of various sizes, so that the device can change synchronously according to the change of the diameter of the inner wall of the wind turbine tower, ensuring that the storage mechanism moves along a horizontal straight line inside the wind turbine tower, so that the spraying device can evenly spray paint on the inner wall of the wind turbine tower, thereby improving the processing quality of the device.

[0016] 2. Through the setting of the carrying mechanism, the storage mechanism and the cleaning mechanism, after the storage mechanism is adjusted to the center point of the inner wall of the wind turbine tower through the carrying mechanism, the inner wall of the wind turbine tower is cleaned through the cleaning mechanism, and the nozzle blows the inner wall of the wind turbine tower after the scraper has scraped it, so as to clean the dust and debris adhering to the inner wall of the wind turbine tower, and at the same time, a Bernoulli effect is generated between the nozzle and the scraper, so that suction is generated between the baffle and the scraper, and the dust and debris on one side of the scraper are sucked into the collection box through the suction force. After the dust falls into the collection box, it is filtered through the filter, and then the collection box is pulled out along one side of the shell, and the dust and debris inside the collection box are poured out, so as to avoid secondary pollution of the inside of the tower by dust and improve the cleanliness of the inside of the wind turbine tower.

[0017] 3. Through the setting of the carrying mechanism, the storage mechanism, the cleaning mechanism and the spraying device, after the inner wall of the wind turbine tower is cleaned, the paint in the storage box is pressurized by the fan, and then sprayed to the inner wall of the wind turbine tower through the spraying device. At the same time, the air around the scraper is heated by the hot wire inside the scraper, and the external air flows around the scraper. The hot air is blown out with the nozzle, so that the hot air blown out by the nozzle accelerates the drying of the paint. At the same time, the scraper smoothes the uneven paint surface of the inner wall of the wind turbine tower, so that the paint is evenly filled into the rough texture of the inner wall of the wind turbine tower, which improves the painting processing efficiency of the device and further improves the processing quality of paint spraying. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings: Figure 1 It is a schematic diagram of the side section structure of the present invention; Figure 2It is a schematic diagram of the cross-sectional structure of the present invention; Figure 3 It is a schematic diagram of the connection structure of the hydraulic cylinder and the cleaning mechanism of the present invention; Figure 4 It is a schematic diagram of the connection structure between the storage box and the side plate of the present invention; Figure 5 It is a schematic diagram of the connection structure of the fan and the storage box of the present invention; Figure 6 It is a schematic diagram of the structure of the carrier mechanism of the present invention; Figure 7 It is a schematic diagram of the cross-sectional structure of the cleaning mechanism of the present invention; Figure 8 It is a schematic diagram of the connection structure of the baffle and the card block of the present invention.

[0019] In the figure: 1, transport mechanism; 101, side plate; 102, rotating rod; 103, telescopic rod; 104, connecting card plate; 105, supporting rotating plate; 106, roller; 107, telescopic sleeve rod; 2. Material storage mechanism; 201. Material storage box; 202. Fan; 203. Stirring blade; 204. Connecting rod; 205. Hydraulic cylinder; 3. Cleaning mechanism; 301. Shell; 302. Collection box; 3021. One-way rotating plate; 3022. Filter; 303. Nozzle; 304. Scraper; 305. Hot wire; 306. Baffle; 307. Block; 3071. First block; 3072. Second block; 4. Spraying device; 5. Wind power tower; 6. Base frame. DETAILED DESCRIPTION

[0020] 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.

[0021] See also Figure 1-Figure 8 , the present invention provides a technical solution: A pipe inner wall spraying device with a cleaning function, comprising a base frame 6, a carrying mechanism 1, a material storage mechanism 2 and a cleaning mechanism 3; A wind turbine tower 5 is arranged on the top of the base frame 6, a carrying mechanism 1 is arranged on the inner wall of the wind turbine tower 5, a storage mechanism 2 is arranged on one side of the carrying mechanism 1, a cleaning mechanism 3 and a spraying device 4 are arranged in a ring on the front of the storage mechanism 2, and the cleaning mechanism 3 and the spraying device 4 are equidistantly and staggeredly distributed about the front ring of the storage mechanism 2.

[0022] The carrying mechanism 1 includes a telescopic sleeve rod 107, one end of the telescopic sleeve rod 107 is connected to the storage mechanism 2, a side plate 101 is provided at the end of the telescopic sleeve rod 107 away from the storage mechanism 2, a rotating rod 102 is provided on the side of the side plate 101 away from the telescopic sleeve rod 107, a telescopic rod 103 is provided on one side of the rotating rod 102, a sliding groove is provided on one side of the side plate 101, one end of the rotating rod 102 is clamped with the inner wall of the sliding groove, a connecting card plate 104 is provided on the other end of the rotating rod 102, a supporting rotating plate 105 is hinged on one side of the connecting card plate 104, and the other side of the connecting card plate 104 is clamped with the side plate 101, a roller 106 is connected to one side of the supporting rotating plate 105 through a bearing, a motor is provided on the central rotating shaft and the top of the roller 106, and a 135° angle is set between the roller 106 and the supporting rotating plate 105. The motor at the top of the roller 106 deflects the roller 106 so that the bottom of the roller 106 is tangent to the inner wall of the wind turbine tower 5. The telescopic sleeve 107 is extended and retracted to push the side plate 101 to move. The roller 106 rolls along the inner wall of the wind turbine tower 5 so that the rollers 106 at the top and bottom of the side plate 101 are both in contact with the inner wall of the wind turbine tower 5. At the same time, the length of the telescopic rod 103 is controlled to adjust the distance between the rollers 106 at the top and bottom of the side plate 101, so that the storage mechanism 2 moves quickly to the center point of the wind turbine tower 5. The motor at the top of the roller 106 deflects the roller 106 so that the roller 106 The bottom is tangent to the profile of the wind turbine tower 5. The motor driven carrying mechanism 1 through the central axis of the roller 106 moves along the inner wall of the wind turbine tower 5. The inner wall of the wind turbine tower 5 is evenly sprayed by rotating the spraying device 4. According to the diameter change of the inner wall of the wind turbine tower 5, the length of the telescopic rod 103 is adjusted, so that the two ends of the telescopic rod 103 drive the rotating rod 102 to deflect synchronously, and the rotating rod 102 drives the rollers 106 at the top and bottom of the side plate 101 to move synchronously, ensuring that the storage mechanism 2 is stably located at the center point of the wind turbine tower 5, ensuring that the spraying device 4 sprays the inner wall of the wind turbine tower 5 evenly.

[0023] There are two groups of rotating rods 102, each group is provided with two, and each group of rotating rods 102 is hinged through an equally divided point, and the two equally divided points of the rotating rod 102 are respectively connected to the two ends of the telescopic rod 103. The telescopic rod 103 adopts an electric telescopic rod, and pressure sensors are provided at both ends of the telescopic rod 103. When the carrying mechanism 1 moves along the inner wall of the wind turbine tower 5, the inner wall diameter of the wind turbine tower 5 changes continuously, so that the pressure sensor provided in the telescopic rod 103 provides an electrical signal to the telescopic rod 103, and then controls the extension and contraction of the telescopic rod 103, ensuring that the roller 106 fits the inner wall of the wind turbine tower 5, so that the spraying device 4 can operate stably, and the shaking of the spraying device 4 is reduced.

[0024] The storage mechanism 2 includes a storage box 201, both sides of which are connected to the side panels 101, and a fan 202 is provided at the back of the storage box 201. The output shaft of the motor in the fan 202 is connected to a connecting rod 204 through a coupling, and a stirring blade 203 is provided at one end of the connecting rod 204, and a hydraulic cylinder 205 is provided at one end of the connecting rod 204 away from the stirring blade 203. The paint to be sprayed is put into the storage box 201, and then the stirring blade 203 is driven to rotate by the motor in the fan 202 through the connecting rod 204, and the stirring blade 203 evenly mixes the paint to avoid the problem of deposition and stratification caused by the static paint, and at the same time, the inner wall of the storage box 201 is scraped to reduce the adhesion of the paint to the inner wall of the storage box 201.

[0025] Four hydraulic cylinders 205 are provided, and the hydraulic cylinders 205 are evenly distributed in a ring about one end of the connecting rod 204. The hydraulic cylinders 205, the fan 202, the telescopic rod 103, the telescopic sleeve rod 107 and the pressure sensor are electrically connected. The telescopic length of the hydraulic cylinder 205 is controlled by the telescopic length of the telescopic rod 103 and the telescopic sleeve rod 107, so that the cleaning mechanism 3 fits the inner wall of the wind turbine tower 5. The pressure sensors at both ends of the telescopic rod 103 change the diameter of the inner wall of the wind turbine tower 5, and synchronously adjust the length of the hydraulic cylinder 205, ensuring that the cleaning mechanism 3 fits the inner wall of the wind turbine tower 5.

[0026] The cleaning mechanism 3 includes a shell 301, which is hinged to one end of the hydraulic cylinder 205 away from the storage box 201. A collecting box 302 is arranged inside the shell 301. There are two collecting boxes 302, which are symmetrically distributed about the inner wall of the shell 301. A nozzle 303 is arranged between the collecting boxes 302. A scraper 304 is arranged inside the shell 301. Hot wires 305 are equidistantly arranged on the inner straight line of the scraper 304. Baffles 306 are hinged on both sides of the shell 301, and a block 307 is arranged on the side of the baffle 306 close to the scraper 304. The cleaning mechanism 3 is driven by the hydraulic cylinder 205 to fit against the inner wall of the wind turbine tower 5, so that the cleaning mechanism 3 is deflected along the hinge between the shell 301 and the hydraulic cylinder 205, so that the scraper 304 fits against the inner wall of the wind turbine tower 5, which makes it easy for the scraper 304 to quickly scrape off the powdered paint surface on the inner wall of the wind turbine tower 5, thereby improving the efficiency of cleaning the inner wall of the wind turbine tower 5.

[0027] The collecting box 302 is snap-fitted to the inner wall of the shell 301 , and an opening is provided on one side of the collecting box 302 close to the baffle 306 , a one-way rotating plate 3021 is provided on the inner wall of the opening, a filter screen 3022 is provided between the scraper 304 and the nozzle 303 , and the filter screen 3022 is connected to the collecting box 302 . The nozzle 303 is used to blow the inner wall of the wind turbine tower 5 after being scraped by the scraper 304, so as to clean the dust and debris adhering to the inner wall of the wind turbine tower 5. At the same time, a Bernoulli effect is generated between the nozzle 303 and the scraper 304, so that suction is generated between the baffle 306 and the scraper 304. The dust and debris on one side of the scraper 304 are sucked into the collection box 302 by the suction force. After the dust falls into the collection box 302, it is filtered through the filter 3022, and then the collection box 302 is pulled out along one side of the shell 301, and the dust and debris inside the collection box 302 are poured out, so as to facilitate centralized treatment by the user.

[0028] The block 307 includes a first block 3071 and a second block 3072. One side of the first block 3071 is connected to the baffle 306, the other side of the first block 3071 is connected to the second block 3072, and the side of the second block 3072 away from the first block 3071 is connected to the scraper 304. A plurality of strip grooves are provided on the side of the first block 3071 close to the second block 3072, and the strip grooves are horizontally equidistantly distributed about one side of the first block 3071. The groove between the first block 3071 and the second block 3072 reduces the air intake diameter between the baffle 306 and the scraper 304, improves the suction force between the baffle 306 and the scraper 304, and improves the adsorption efficiency of dust and debris.

[0029] The nozzle 303 is connected to the fan 202 through a conduit, and the fan 202 is connected to the storage box 201 through a conduit. When the cleaning mechanism 3 cleans the inner wall of the wind turbine tower 5, the motor in the fan 202 drives the cleaning mechanism 3 to rotate along the inner wall of the wind turbine tower 5 through the connecting rod 204, and the gas blown out by the fan 202 is sprayed out by the nozzle 303. While cleaning the inner wall of the wind turbine tower 5, the connecting rod 204 drives the stirring blade 203 to mix the paint in the storage box 201, thereby ensuring the quality of the subsequent spraying device 4 spraying the inner wall of the wind turbine tower 5.

[0030] Working principle of the present invention: First, the telescopic sleeve 107 and the hydraulic cylinder 205 are retracted, and the carrying mechanism 1 is placed in the wind turbine tower 5, so that the roller 106 at the bottom of the side plate 101 is in close contact with the inner wall of the wind turbine tower 5 for support, and then the roller 106 is deflected by the motor at the top of the roller 106, so that the bottom of the roller 106 is tangent to the inner wall of the wind turbine tower 5, and the telescopic sleeve 107 is extended and retracted to push the side plate 101 to move, and the roller 106 rolls along the inner wall of the wind turbine tower 5, so that the rollers 106 at the top and bottom of the side plate 101 are in close contact with the inner wall of the wind turbine tower 5, and at the same time, the length of the telescopic rod 103 is controlled to adjust the distance between the rollers 106 at the top and bottom of the side plate 101, so that the storage mechanism 2 quickly moves to the center point of the wind turbine tower 5, deflects the roller 106 through the motor on the top of the roller 106, so that the bottom of the roller 106 is tangent to the cross-section of the wind turbine tower 5, drives the carrier mechanism 1 to move along the inner wall of the wind turbine tower 5 through the motor on the central axis of the roller 106, and evenly sprays the inner wall of the wind turbine tower 5 through the rotation of the spraying device 4. According to the change in the diameter of the inner wall of the wind turbine tower 5, adjust the length of the telescopic rod 103, so that the two ends of the telescopic rod 103 drive the rotating rod 102 to deflect synchronously, and the rotating rod 102 drives the rollers 106 at the top and bottom of the side plate 101 to move synchronously, so as to ensure that the storage mechanism 2 is stably located at the center point of the wind turbine tower 5; Subsequently, the fan 202 is started, so that the motor in the fan 202 drives the cleaning mechanism 3 to rotate along the inner wall of the wind turbine tower 5 through the connecting rod 204, and the gas blown out by the fan 202 is ejected by the nozzle 303. At the same time, the scraper 304 in the cleaning mechanism 3 scrapes and cleans the inner wall of the wind turbine tower 5. The nozzle 303 blows the inner wall of the wind turbine tower 5 scraped by the scraper 304 to clean the dust and debris adhering to the inner wall of the wind turbine tower 5. At the same time, a Bernoulli effect is generated between the nozzle 303 and the scraper 304, so that suction is generated between the baffle 306 and the scraper 304. The dust and debris on one side of the scraper 304 are sucked into the collection box 302 by the suction force. After the dust falls into the collection box 302, it is filtered through the filter 3022. Then, the collection box 302 is drawn out along one side of the shell 301 to pour out the dust and debris inside the collection box 302. After the inner wall of the wind turbine tower 5 is cleaned, the spraying device 4 is started, and the paint in the storage box 201 is pressurized by the fan 202, and then sprayed to the inner wall of the wind turbine tower 5 by the spraying device 4. At the same time, the air around the scraper 304 is heated by the hot wire 305 inside the scraper 304, and the external air flows around the scraper 304. The hot air is blown out along with the nozzle 303, so that the hot air blown out by the nozzle 303 accelerates the air drying of the paint. At the same time, the scraper 304 smoothes the uneven paint surface of the inner wall of the wind turbine tower 5, so that the paint is evenly filled into the rough texture of the inner wall of the wind turbine tower 5; When the nozzle 303 sprays gas, the suction force generated between the baffle 306 and the scraper 304 makes the baffle 306 fit to one side of the scraper 304. A block 307 is provided between the baffle 306 and the scraper 304. The block 307 limits the further deflection of the baffle 306. The block 307 includes a first block 3071 and a second block 3072. The strip groove provided on one side of the first block 3071 reduces the air inlet diameter between the baffle 306 and the scraper 304, and improves the suction force between the baffle 306 and the scraper 304. When the nozzle 303 stops spraying gas, the suction force on the baffle 306 is released, and the baffle 306 and the first block 3071 are deflected along one side of the shell 301 through the hinge connection between one side of the baffle 306 and the shell 301, so as to clean the first block 3071 and the second block 3072 between the baffle 306 and the scraper 304. When moving laterally along the inner wall of the wind turbine tower 5, the transport mechanism 1 moves, and as the cross-sectional diameter of the wind turbine tower 5 changes, the pressure at both ends of the telescopic rod 103 changes. When the pressure at both ends of the telescopic rod 103 increases, the cross-sectional diameter of the wind turbine tower 5 gradually decreases, shortening the length of the telescopic rod 103. When the pressure at both ends of the telescopic rod 103 decreases, the cross-sectional diameter of the wind turbine tower 5 gradually increases, extending the length of the telescopic rod 103, ensuring that the storage mechanism 2 can be located at the center point of the wind turbine tower 5, and synchronously adjusting the length of the hydraulic cylinder 205 so that the cleaning mechanism 3 fits the inner wall of the wind turbine tower 5.

[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A pipe inner wall spraying device with cleaning function, characterized in that: It comprises a base frame (6), a transport mechanism (1), a material storage mechanism (2) and a cleaning mechanism (3); A wind turbine tower (5) is arranged on the top of the base frame (6), a transport mechanism (1) is arranged on the inner wall of the wind turbine tower (5), a material storage mechanism (2) is arranged on one side of the transport mechanism (1), a cleaning mechanism (3) and a spraying device (4) are arranged in a ring shape on the front of the material storage mechanism (2), and the cleaning mechanism (3) and the spraying device (4) are equidistantly and staggeredly arranged in a ring shape on the front of the material storage mechanism (2).

2. A pipe inner wall spraying device with cleaning function according to claim 1, characterized in that: The transport mechanism (1) comprises a telescopic sleeve rod (107), one end of the telescopic sleeve rod (107) is connected to the material storage mechanism (2), one end of the telescopic sleeve rod (107) away from the material storage mechanism (2) is provided with a side plate (101), a side of the side plate (101) away from the telescopic sleeve rod (107) is provided with a rotating rod (102), one side of the rotating rod (102) is provided with a telescopic rod (103), one side of the side plate (101) is provided with a sliding groove, one end of the rotating rod (102) is connected to the material storage mechanism (2), and one end of the rotating rod (102) is connected to the material storage mechanism (2). The inner wall of the slide groove is clamped, and the other end of the rotating rod (102) is provided with a connecting clamping plate (104), one side of the connecting clamping plate (104) is hinged with a supporting rotating plate (105), and the other side of the connecting clamping plate (104) is clamped with the side plate (101), and one side of the supporting rotating plate (105) is connected to a roller (106) through a bearing, and the central rotating shaft and the top of the roller (106) are both provided with a motor, and an angle of 135 degrees is set between the roller (106) and the supporting rotating plate (105).

3. A pipe inner wall spraying device with cleaning function according to claim 2, characterized in that: The rotating rods (102) are provided in two groups, each group being provided with two rods. The rotating rods (102) are hinged at equal points between each group. The two groups of equal points of the rotating rods (102) are respectively connected to two ends of a telescopic rod (103). The telescopic rod (103) is an electric telescopic rod. Pressure sensors are provided at both ends of the telescopic rod (103).

4. The pipeline inner wall spraying device with cleaning function according to claim 3 is characterized in that: The material storage mechanism (2) comprises a material storage box (201), both sides of the material storage box (201) are connected to the side plates (101), a fan (202) is arranged on the back of the material storage box (201), an output shaft of a motor in the fan (202) is connected to a connecting rod (204) via a coupling, a stirring blade (203) is arranged at one end of the connecting rod (204), and a hydraulic cylinder (205) is arranged at one end of the connecting rod (204) away from the stirring blade (203).

5. The pipeline inner wall spraying device with cleaning function according to claim 4 is characterized in that: Four hydraulic cylinders (205) are provided, and the hydraulic cylinders (205) are evenly distributed in a ring shape about one end of the connecting rod (204). The hydraulic cylinders (205), the fan (202), the telescopic rod (103), the telescopic sleeve rod (107), and the pressure sensor are electrically connected.

6. The pipeline inner wall spraying device with cleaning function according to claim 5 is characterized in that: The cleaning mechanism (3) comprises a shell (301), the shell (301) being hinged to one end of the hydraulic cylinder (205) away from the material storage box (201), a collecting box (302) being arranged inside the shell (301), two collecting boxes (302) being arranged, the collecting boxes (302) being symmetrically distributed about the inner wall of the shell (301), a nozzle (303) being arranged between the collecting boxes (302), a scraper (304) being arranged inside the shell (301), hot wires (305) being arranged equidistantly in a straight line inside the scraper (304), baffles (306) being hinged to both sides of the shell (301), and a clamping block (307) being arranged on a side of the baffle (306) close to the scraper (304).

7. The pipeline inner wall spraying device with cleaning function according to claim 6 is characterized in that: The collection box (302) is snap-fitted to the inner wall of the housing (301); an opening is provided on a side of the collection box (302) close to the baffle (306); a one-way rotating plate (3021) is provided on the inner wall of the opening; a filter screen (3022) is provided between the scraper (304) and the nozzle (303); and the filter screen (3022) is connected to the collection box (302).

8. The pipeline inner wall spraying device with cleaning function according to claim 7 is characterized in that: The blocking block (307) comprises a first blocking block (3071) and a second blocking block (3072), one side of the first blocking block (3071) is connected to the baffle (306), the other side of the first blocking block (3071) is connected to the second blocking block (3072), a side of the second blocking block (3072) away from the first blocking block (3071) is connected to the scraper (304), and a side of the first blocking block (3071) close to the second blocking block (3072) is provided with a plurality of strip grooves, the strip grooves being distributed laterally and equidistantly with respect to one side of the first blocking block (3071).

9. The pipeline inner wall spraying device with cleaning function according to claim 8, characterized in that: The nozzle (303) is connected to the fan (202) via a conduit, and the fan (202) is connected to the material storage box (201) via a conduit.

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