Oil stain cleaning device for wind power tower drum

Abstract

The invention relates to the technical field of wind power tower drum cleaning, and particularly discloses a wind power tower drum oil stain cleaning device which comprises two sets of positioning semi-rings which are symmetrically arranged front and back, double-shaft motors are arranged on the inner walls of the positioning semi-rings in a circumferential array mode, and rolling wheels are symmetrically arranged on the two sides of each double-shaft motor; the output shaft of the double-shaft motor is connected with the rolling wheel, a displacement adjusting mechanism is connected between the double-shaft motor and the positioning semi-ring, the displacement adjusting mechanism comprises a telescopic rod and a pressure sensor, the telescopic rod is arranged between the double-shaft motor and the positioning semi-ring, and through the displacement adjusting mechanism, in cooperation with the double-shaft motor and the rolling wheel, the pressure sensor is arranged between the telescopic rod and the positioning semi-ring. Even if the outer wall of the wind power tower drum is of a slope structure with the upper end and the lower end different in diameter, the cleaning device can still ascend and descend on the outer wall of the wind power tower drum, practicability and stability of the device are guaranteed, and after the height of the device is determined, oil dirt on the outer wall of the wind power tower drum is cleaned through the cleaning mechanism.

Description

Technical Field

[0001] The invention belongs to the technical field of wind turbine tower cleaning, and in particular relates to a wind turbine tower oil cleaning device. Background Art

[0002] The wind turbine tower is the tower pole of wind power generation. It mainly plays a supporting role in the wind turbine generator set and absorbs the vibration of the unit. The gearbox of the wind turbine generator set will wear during use, resulting in leakage of lubricating oil. The leaked lubricating oil will flow to the outer surface of the wind turbine tower and form oil stains. For a cylindrical wind turbine tower with a large diameter at the bottom and a small diameter at the top, its outer wall is an inclined curved structure. The existing oil stain cleaning device is not convenient for climbing the outer wall of the wind turbine tower, which is not conducive to the cleaning device to clean the outer wall of the wind turbine tower. Summary of the invention

[0003] The purpose of the present invention is to provide a wind turbine tower oil cleaning device to solve the problems raised in the above background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions: A wind power tower oil cleaning device, comprising: A positioning half ring, wherein two groups of the positioning half rings are symmetrically arranged front and back, and the left and right sides of the two groups of positioning half rings are fixedly connected with a primary fixing plate by positioning bolts, a double-axis motor is arranged in a circular array on the inner wall of the positioning half ring, rolling wheels are symmetrically arranged on both sides of the double-axis motor, and the output shaft of the double-axis motor is connected to the rolling wheel, a displacement adjustment mechanism is connected between the double-axis motor and the positioning half ring, and the displacement adjustment mechanism includes a telescopic rod and a pressure sensor, the telescopic rod is arranged between the double-axis motor and the positioning half ring, and the pressure sensor is connected to the end of the telescopic rod opposite to the double-axis motor; A cleaning mechanism is provided above the positioning semi-ring, and the cleaning mechanism comprises a hollow semi-ring, a nozzle and a scraper. The hollow semi-ring is provided above the positioning semi-ring, and the nozzle and the scraper are provided in a circular array on the inner wall of the hollow semi-ring, and the nozzle is communicated with the hollow semi-ring.

[0005] Preferably, the shift adjustment mechanism also includes a mounting plate, an external square tube, a connecting slot and a circular rod, the mounting plate is connected between the pressure sensor and the dual-axis motor, the external square tube circular array is connected to the inner wall of the positioning semi-ring, the end of the telescopic rod opposite to the pressure sensor slides in the external square tube, the connecting slot is opened at the top of the external square tube, and the bottom end of the connecting slot is connected to the inner cavity of the external square tube, the circular rod slides in the connecting slot, and the bottom end of the circular rod passes through the connecting slot and is connected to the telescopic rod, the circular rod slides in the sliding slot, thereby bringing the telescopic rod out of the external square tube.

[0006] Preferably, the shift adjustment mechanism also includes a primary pair of half-toothed rings, a limiting frame, a rotating plate and a sliding notch, the primary pair of half-toothed rings are arranged at the top of the positioning half-ring, the limiting frame is symmetrically connected to the top of the inner wall of the positioning half-ring, and the top surface of the primary pair of half-toothed rings and the limiting frame are slidably matched, the rotating plate is connected to the inner wall of the primary pair of half-toothed rings in a circular array, and the rotating plate is at the top of the external square tube, the sliding notch is opened in the middle of the rotating plate, and the sliding notch passes through the rotating plate up and down, and the top of the circular rod passes through the sliding notch, the two groups of primary pair of half-toothed rings rotate around the center, drive the rotating plate to rotate, and make the circular rod slide in the sliding notch; The inner walls of the two groups of the first-stage half gear rings are symmetrically provided with third-stage fixing plates, and the third-stage fixing plates are fixedly connected to the first-stage half gear rings through positioning bolts.

[0007] Preferably, the shift adjustment mechanism also includes a primary assembly plate, a primary drive motor and a primary gear. The primary assembly plate is fixedly connected to the bottom end of the front side of the positioning half ring on the front side by a positioning bolt, and the primary drive motor is fixedly connected to the top of the primary assembly plate by a positioning bolt. The middle part of the bottom surface of the primary gear is connected to the output shaft at the top of the primary drive motor, and the primary gear is meshed with the primary half-toothed ring. When the primary drive motor is turned on, the primary gear rotates, thereby causing the two groups of primary half-toothed rings to rotate around the center.

[0008] Preferably, the cleaning mechanism further comprises a liquid storage box, a liquid replenishing pipe and a solenoid valve, wherein the liquid storage box is connected to the top of the limiting frame, the liquid replenishing pipe is connected to the middle of the top of the outer wall of the liquid storage box, the solenoid valve is arranged on the liquid replenishing pipe, and the float switch monitors the detergent content in the liquid storage box. After the detergent in one group of liquid storage boxes is used up, the float switch transmits a signal to the external terminal, the external terminal receives the signal and controls the pump body at the top of the liquid storage box to close and the other pump body to open, so that the detergent in the other group of liquid storage boxes is put into use, and at the same time, the solenoid valve connected to the liquid storage box is opened to replenish the detergent through the liquid replenishing pipe; A float switch is provided in the liquid storage box; A secondary fixing plate is symmetrically connected between the two groups of liquid storage boxes, and the secondary fixing plate is fixedly connected to the liquid storage box through positioning bolts.

[0009] Preferably, the cleaning mechanism also includes a stabilizing bracket, a pump body, a primary duct, a secondary duct and a connecting pipe fitting, the stabilizing bracket is connected to the inner wall of the liquid storage box in a circular array, and the stabilizing bracket is connected to the hollow semi-ring, the pump body is fixedly connected to the middle of the top end of the liquid storage box by a positioning bolt, the primary duct is connected between the bottom end of the pump body and the liquid storage box, the secondary duct is connected between the pump body and the hollow semi-ring, the connecting pipe fitting is symmetrically arranged at the top of the hollow semi-ring, and one end of the connecting pipe fitting is connected to the hollow semi-ring located on the front side, and the other end of the connecting pipe fitting is connected to the hollow semi-ring located on the rear side. During cleaning, the pump body is turned on, and the cleaning agent in the liquid storage box is sprayed to the outer wall of the wind turbine tower through the primary duct, the secondary duct, the hollow semi-ring and the nozzle to pre-treat the oil stains.

[0010] Preferably, the cleaning mechanism further comprises a secondary half-toothed ring, a sleeve, a return spring, a push rod and a circular plate, wherein the secondary half-toothed ring is arranged at the top of the hollow half ring, the sleeve circumferential array is connected to the inner wall of the secondary half-toothed ring, the return spring, the push rod and the circular plate are all arranged in the sleeve, the two ends of the return spring are respectively connected to the sleeve and the circular plate, the push rod is connected to the middle part of the side of the circular plate opposite to the return spring, and the end of the push rod opposite to the circular plate is connected to the scraper, the outer wall of the circular plate is slidably matched with the sleeve, and under the action of the return spring, the scraper will press against the wind power tower, thereby scraping off the oil stains that have been pretreated at this height; The side of the scraper opposite to the push rod is set as an inclined surface structure.

[0011] Preferably, the cleaning mechanism further includes a limit member, a secondary gear, a secondary drive motor and a secondary assembly plate, the limit member is arranged on the outer wall of the secondary half-toothed ring, and the limit member is fixedly connected to the hollow half-ring by a positioning bolt, the secondary gear is meshingly connected to the right front of the secondary half-toothed ring located on the front side, the secondary drive motor is arranged below the secondary gear, and the output shaft at the top of the secondary drive motor is connected to the middle of the bottom of the secondary gear, the secondary assembly plate is fixedly connected to the bottom end of the secondary drive motor by a positioning bolt, and the secondary assembly plate is fixedly connected to the liquid storage box by a positioning bolt, the secondary drive motor is turned on to rotate the secondary gear, thereby driving the two groups of secondary half-toothed rings to rotate, so that the scraper rotates; An anti-slip groove is provided at the top of the secondary half-toothed ring, and an anti-slip round rod is slidably fitted in the anti-slip groove. The top of the anti-slip round rod is connected to a limiter to limit the secondary half-toothed ring so that the secondary half-toothed ring can rotate stably.

[0012] Compared with the prior art, the present invention has the following beneficial effects: The present invention uses a shift adjustment mechanism in conjunction with a dual-axis motor and a rolling wheel. Even if the outer wall of the wind turbine tower is an inclined structure with different diameters at the upper and lower ends, the cleaning device can still be raised and lowered on the outer wall of the wind turbine tower, thereby ensuring the practicability and stability of the device. After the height of the device is determined, the cleaning mechanism is used to clean the oil stains on the outer wall of the wind turbine tower, and the device can be easily disassembled and assembled on the outer wall of the wind turbine tower. The two sets of liquid storage boxes are arranged so that they can be used alternately, reducing the downtime of the cleaning device and thus improving the cleaning efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the bottom structure of the present invention; Figure 3 It is a schematic diagram of a hollow half ring of the present invention; Figure 4 This is a schematic diagram of a primary half gear ring of the present invention; Figure 5 It is a schematic diagram of a scraper of the present invention; Figure 6 is a cross-sectional view of the sleeve of the present invention; In the figure: 10, positioning half ring; 101, primary fixing plate; 20. Dual-axis motor; 30. Rolling wheel; 40. Shift adjustment mechanism; 401. Telescopic rod; 402. Pressure sensor; 403. Mounting plate; 404. External square tube; 405. Connecting notch; 406. Round rod; 407. Primary half gear ring; 4071. Third-stage fixing plate; 408. Limiting frame; 409. Rotating plate; 410. Sliding notch; 411. Primary assembly plate; 412. Primary drive motor; 413. Primary gear; 50. Cleaning mechanism; 501. Hollow half ring; 502. Nozzle; 503. Scraper; 504. Liquid storage box; 5041. Secondary fixing plate; 505. Liquid replenishing pipe fittings; 506. Solenoid valve; 507. Stable bracket; 508. Pump body; 509. Primary conduit; 510. Secondary conduit; 511. Connecting pipe fittings; 512. Secondary half gear ring; 513. Sleeve; 514. Return spring; 515. Push rod; 516. Round plate; 517. Limiting piece; 518. Secondary gear; 519. Secondary driving motor; 520. Secondary assembly plate; 521. Anti-slip notch; 522. Anti-slip round rod. DETAILED DESCRIPTION

[0014] 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.

[0015] Example 1: Please refer to Figure 1-Figure 6 As shown, a wind power tower oil cleaning device comprises: A positioning half ring 10, wherein two groups of the positioning half ring 10 are symmetrically arranged front and back, and the left and right sides of the two groups of positioning half rings 10 are fixedly connected with a primary fixing plate 101 by positioning bolts, and a double-axis motor 20 is arranged in a circular array on the inner wall of the positioning half ring 10, and rolling wheels 30 are symmetrically arranged on both sides of the double-axis motor 20, and the output shaft of the double-axis motor 20 is connected to the rolling wheel 30, and a shift adjustment mechanism 40 is connected between the double-axis motor 20 and the positioning half ring 10, and the shift adjustment mechanism 40 includes a telescopic rod 401 and a pressure sensor 402, and the telescopic rod 401 is arranged between the double-axis motor 20 and the positioning half ring 10, and the pressure sensor 402 is connected to the end of the telescopic rod 401 opposite to the double-axis motor 20; A cleaning mechanism 50 is provided above the positioning half ring 10, and the cleaning mechanism 50 includes a hollow half ring 501, a nozzle 502 and a scraper 503. The hollow half ring 501 is provided above the positioning half ring 10, and the nozzle 502 and the scraper 503 are both provided in a circular array on the inner wall of the hollow half ring 501, and the nozzle 502 is connected to the hollow half ring 501.

[0016] refer to Figure 1 , Figure 2 and Figure 4 As shown, the displacement adjustment mechanism 40 also includes a mounting plate 403, an external square tube 404, a connecting slot 405 and a circular rod 406. The mounting plate 403 is connected between the pressure sensor 402 and the dual-axis motor 20. The external square tube 404 is connected in a circular array to the inner wall of the positioning semi-ring 10. The end of the telescopic rod 401 opposite to the pressure sensor 402 is slidably fitted in the external square tube 404. The connecting slot 405 is opened at the top of the external square tube 404, and the bottom end of the connecting slot 405 is connected to the inner cavity of the external square tube 404. The circular rod 406 is slidably fitted in the connecting slot 405, and the bottom end of the circular rod 406 passes through the connecting slot 405 and is connected to the telescopic rod 401. The circular rod 406 slides in the sliding slot 410, thereby bringing the telescopic rod 401 out of the external square tube 404.

[0017] refer to Figure 2 and Figure 4As shown, the shift adjustment mechanism 40 also includes a first-stage half-toothed ring 407, a limiting frame 408, a rotating plate 409 and a sliding slot 410. The first-stage half-toothed ring 407 is arranged at the top of the positioning half ring 10, and the limiting frame 408 is symmetrically connected to the top of the inner wall of the positioning half ring 10, and the top surface of the first-stage half-toothed ring 407 and the limiting frame 408 are slidably matched. The rotating plate 409 is connected to the inner wall of the first-stage half-toothed ring 407 in a circular array, and the rotating plate 409 is at the top of the external square tube 404. The sliding slot 410 is opened in the middle of the rotating plate 409, and the sliding slot 410 passes through the rotating plate 409 from top to bottom. The top of the circular rod 406 passes through the sliding slot 410, and the two groups of first-stage half-toothed rings 407 rotate around the center, driving the rotating plate 409 to rotate, so that the circular rod 406 slides in the sliding slot 410. The inner walls of the two groups of primary half gear rings 407 are symmetrically provided with tertiary fixing plates 4071, and the tertiary fixing plates 4071 are fixedly connected to the primary half gear rings 407 by positioning bolts.

[0018] refer to Figure 1 , Figure 2 and Figure 4 As shown, the shift adjustment mechanism 40 also includes a primary assembly plate 411, a primary drive motor 412 and a primary gear 413. The primary assembly plate 411 is fixedly connected to the bottom end of the front side of the positioning half ring 10 located on the front side by a positioning bolt, the primary drive motor 412 is fixedly connected to the top of the primary assembly plate 411 by a positioning bolt, the middle of the bottom surface of the primary gear 413 is connected to the output shaft at the top of the primary drive motor 412, the primary gear 413 is meshed and connected with the primary half-toothed ring 407, and the primary drive motor 412 is turned on to rotate the primary gear 413, thereby causing the two groups of primary half-toothed rings 407 to rotate around the center.

[0019] refer to Figure 1 and Figure 2 As shown, the cleaning mechanism 50 also includes a liquid storage box 504, a liquid replenishing pipe 505 and a solenoid valve 506. The liquid storage box 504 is connected to the top of the limiting frame 408, the liquid replenishing pipe 505 is connected to the middle of the top of the outer wall of the liquid storage box 504, and the solenoid valve 506 is arranged on the liquid replenishing pipe 505. The float switch monitors the detergent content in the liquid storage box 504. After the detergent in one group of liquid storage boxes 504 is used up, the float switch transmits a signal to the external terminal. The external terminal receives the signal and controls the pump body 508 at the top of the liquid storage box 504 to close and the other pump body 508 to open, so that the detergent in the other group of liquid storage boxes 504 is put into use, and at the same time, the solenoid valve 506 connected to the liquid storage box 504 is opened to replenish the detergent through the liquid replenishing pipe 505. A float switch is provided in the liquid storage box 504; A secondary fixing plate 5041 is symmetrically connected between the two groups of liquid storage boxes 504, and the secondary fixing plate 5041 is fixedly connected to the liquid storage box 504 via positioning bolts.

[0020] refer to Figure 1 and Figure 3 As shown, the cleaning mechanism 50 also includes a stabilizing bracket 507, a pump body 508, a primary conduit 509, a secondary conduit 510 and a connecting pipe 511. The stabilizing bracket 507 is connected to the inner wall of the liquid storage box 504 in a circumferential array, and the stabilizing bracket 507 is connected to the hollow semi-ring 501. The pump body 508 is fixedly connected to the middle of the top of the liquid storage box 504 by a positioning bolt. The primary conduit 509 is connected between the bottom end of the pump body 508 and the liquid storage box 504. The secondary conduit 510 is connected to the pump body 508. Between the hollow half ring 501, the connecting pipe fitting 511 is symmetrically arranged at the top of the hollow half ring 501, and one end of the connecting pipe fitting 511 is connected to the hollow half ring 501 located on the front side, and the other end of the connecting pipe fitting 511 is connected to the hollow half ring 501 located on the rear side. When cleaning, turn on the pump body 508, and spray the cleaning agent in the liquid storage box 504 to the outer wall of the wind turbine tower through the primary duct 509, the secondary duct 510, the hollow half ring 501 and the nozzle 502 to pre-treat the oil stains.

[0021] refer to Figure 1-Figure 3 , Figure 5 and Figure 6 As shown, the cleaning mechanism 50 also includes a secondary half-toothed ring 512, a sleeve 513, a return spring 514, a push rod 515 and a circular plate 516. The secondary half-toothed ring 512 is arranged at the top of the hollow half ring 501, and the sleeve 513 is connected to the inner wall of the secondary half-toothed ring 512 in a circumferential array. The return spring 514, the push rod 515 and the circular plate 516 are all arranged in the sleeve 513, and the two ends of the return spring 514 are respectively connected to the sleeve 513 and the circular plate 516. The push rod 515 is connected to the middle part of the side of the circular plate 516 opposite to the return spring 514, and the push rod 515 is connected to the circular plate 516. One end of the back is connected to the scraper 503, and the outer wall of the circular plate 516 is slidably matched with the sleeve 513. Under the action of the return spring 514, the scraper 503 will press against the wind power tower, thereby scraping off the pre-treated oil at the height. At the same time, a strip-shaped limiting slide groove is provided on the inner wall of the sleeve 513, and a limiting slider is slidably matched in the limiting slide groove. The limiting slider is connected to the mandrel 515, which can limit the mandrel 515 without affecting the extension and retraction of the mandrel 515 in the sleeve 513, so that the mandrel 515 is not easy to rotate, that is, the scraper 503 is not easy to rotate around the mandrel 515 as the center; The side of the scraper 503 opposite to the push rod 515 is configured as an inclined structure.

[0022] refer to Figure 1 , Figure 3 and Figure 5As shown, the cleaning mechanism 50 also includes a limit member 517, a secondary gear 518, a secondary drive motor 519 and a secondary assembly plate 520. The limit member 517 is arranged on the outer wall of the secondary half-toothed ring 512, and the limit member 517 is fixedly connected to the hollow half ring 501 by a positioning bolt. The secondary gear 518 is meshed and connected to the right front of the secondary half-toothed ring 512 located on the front side. The secondary drive motor 519 is arranged below the secondary gear 518, and the output shaft at the top of the secondary drive motor 519 is connected to the middle of the bottom of the secondary gear 518. The secondary assembly plate 520 is fixedly connected to the bottom end of the secondary drive motor 519 by a positioning bolt, and the secondary assembly plate 520 is fixedly connected to the liquid storage box 504 by a positioning bolt. Turn on the secondary drive motor 519 to rotate the secondary gear 518, thereby driving the two groups of secondary half-toothed rings 512 to rotate, so that the scraper 503 rotates. An anti-slip groove 521 is provided at the top of the secondary half-toothed ring 512, and an anti-slip round rod 522 is slidably fitted in the anti-slip groove 521, and the top of the anti-slip round rod 522 is connected to the limiter 517, which restricts the secondary half-toothed ring 512 so that the secondary half-toothed ring 512 can rotate stably.

[0023] When the present invention is in use, two groups of positioning half rings 10 are sleeved on the bottom end of the outer wall of the wind turbine tower, and two groups of liquid storage boxes 504 are then located on the outer wall of the wind turbine tower. Two groups of primary fixing plates 101 are used to connect and fix the two groups of positioning half rings 10, and two groups of secondary fixing plates 5041 are used to connect and fix the two groups of liquid storage boxes 504. Two groups of primary half gear rings 407 are arranged between the top of the positioning half ring 10 and the limiting frame 408, and two groups of tertiary fixing plates 4071 are used to connect and fix the two groups of primary half gear rings 407. Turn on the first-stage drive motor 412 to rotate the first-stage gear 413, so that the two groups of first-stage half-tooth rings 407 rotate around the center, drive the rotating plate 409 to rotate, and make the circular rod 406 slide in the sliding notch 410, so as to pull out the telescopic rod 401 from the peripheral square pipe 404 until the rolling wheel 30 contacts the wind power tower barrel. The wind power tower barrel forms a resistance to the rolling wheel 30. This resistance is transmitted to the pressure sensor 402 through the rolling wheel 30, the double-shaft motor 20 and the mounting plate 403. The pressure sensor 402 senses this resistance. When the resistance reaches the preset value of the pressure sensor 402, it means that this resistance, that is, the force of the rolling wheel 30 pressing on the wind power tower barrel, meets the standard. Under the action of the friction between the rolling wheel 30 and the outer wall of the wind power tower barrel, the device will not drop due to the action of gravity. Turn on the double-shaft motor 20 to rotate the rolling wheel 30 and drive the device to rise. Since the diameter of the upper end of the wind power tower barrel is smaller than that of the lower end, when the device rises, because the rolling wheel 30 cannot fully fit the wind power tower barrel, the pressing force of the rolling wheel 30 on the wind power tower barrel decreases, and the pressure sensed by the pressure sensor 402 is lower than the preset value. The pressure sensor 402 transmits the data to the peripheral terminal. The peripheral terminal receives the data and controls the first-stage drive motor 412 to turn on, so as to continue to extend the telescopic rod 401, reduce the diameter of the circle formed by all the rolling wheels 30 together, make the rolling wheel 30 fit more fully, and press the wind power tower barrel, increase the pressing force of the rolling wheel 30 on the wind power tower barrel, and make the value of the pressure sensor 402 be at the preset value again. At the same time, make the rolling wheel 30 continue to rotate until the top of the device contacts the equipment at the top of the wind power tower barrel and cannot continue to rise. The double-shaft motor 20 cannot continue to rotate. At this time, the peripheral terminal receives the signal that the double-shaft motor 20 cannot continue to rotate, controls the double-shaft motor 20, and turns off the double-shaft motor 20 and the first-stage drive motor 412, thus completing the climbing of the device; Before cleaning, make the device climb to the highest point first and clean from high to low. When cleaning, turn on the pump body 508 to spray the cleaning agent in the liquid storage box 504 onto the outer wall of the wind power tower barrel through the first-stage conduit 509, the second-stage conduit 510, the hollow half-ring 501 and the nozzle 502 to pre-treat the oil stain. After the pre-treatment is completed, turn on the second-stage drive motor 519 to rotate the second-stage gear 518, so as to drive the two groups of second-stage half-tooth rings 512 to rotate, and make the scraper 503 rotate. Under the action of the return spring 514, the scraper 503 will press tightly against the wind power tower barrel, so as to scrape off the pre-treated oil stain at this height. Since there are multiple scrapers 503, the oil stain on the outer wall of the wind power tower barrel can be removed in a short time; By making the device descend periodically, the outer wall of the wind turbine tower is divided into multiple areas from top to bottom. When the device needs to descend, the dual-axis motor 20 is turned on to make the rolling wheel 30 rotate in the opposite direction. Similarly, since the diameter of the lower end of the wind turbine tower is greater than the diameter of the upper end, under the action of friction, if the rolling wheel 30 continues to rotate, the friction will increase. There will be a lateral force in the friction, which is transmitted to the pressure sensor 402 through the rolling wheel 30, the dual-axis motor 20 and the mounting plate 403. At this time, the force value monitored by the pressure sensor 402 will increase, that is, greater than the preset value, and the pressure sensor 402 will transmit the data to the external device. The terminal receives data and controls the first-stage drive motor 412 to start, so that the first-stage gear 413 and the first-stage half-toothed ring 407 rotate in the opposite direction, so that the telescopic rod 401 shrinks, and the diameter of the circle formed by all the rolling wheels 30 is increased, so that the squeezing force of the rolling wheels 30 on the wind turbine tower can be reduced, so that the value monitored by the pressure sensor 402 is reduced and is at the preset value again, and at the same time, the rolling wheel 30 is continuously rotated until the rolling wheel 30 rotates to a preset number of circles. At this time, the external terminal receives the signal that the dual-axis motor 20 has completed the rotation, controls the dual-axis motor 20, and turns off the dual-axis motor 20 and the first-stage drive motor 412, so as to complete the descent of the device; As for the height to which the device descends, the number of rotations of the output shaft of the dual-axis motor 20 is controlled in advance according to the outer circumference of the scroll wheel 30, so as to realize the segmented descent of the device and achieve area division.

[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wind turbine tower oil cleaning device, characterized in that: include: A positioning half ring (10), wherein two groups of the positioning half ring (10) are symmetrically arranged in front and back, and the left and right sides of the two groups of the positioning half ring (10) are fixedly connected to a primary fixing plate (101) by positioning bolts, and a double-axis motor (20) is arranged in a circular array on the inner wall of the positioning half ring (10), and rolling wheels (30) are symmetrically arranged on both sides of the double-axis motor (20), and the output shaft of the double-axis motor (20) is connected to the rolling wheel (30), and a displacement adjustment mechanism (40) is connected between the double-axis motor (20) and the positioning half ring (10), and the displacement adjustment mechanism (40) comprises a telescopic rod (401) and a pressure sensor (402), and the telescopic rod (401) is arranged between the double-axis motor (20) and the positioning half ring (10), and the pressure sensor (402) is connected to the end of the telescopic rod (401) opposite to the double-axis motor (20); A cleaning mechanism (50) is provided above the positioning semi-ring (10), the cleaning mechanism (50) comprising a hollow semi-ring (501), a nozzle (502) and a scraper (503); the hollow semi-ring (501) is provided above the positioning semi-ring (10), the nozzle (502) and the scraper (503) are both provided in a circular array on the inner wall of the hollow semi-ring (501), and the nozzle (502) is connected to the hollow semi-ring (501).

2. A wind turbine tower oil cleaning device according to claim 1, characterized in that: The displacement adjustment mechanism (40) further comprises a mounting plate (403), an external square tube (404), a connecting slot (405) and a circular rod (406); the mounting plate (403) is connected between the pressure sensor (402) and the dual-axis motor (20); the external square tube (404) is connected in a circular array to the inner wall of the positioning semi-ring (10); the end of the telescopic rod (401) opposite to the pressure sensor (402) is slidably fitted in the external square tube (404); the connecting slot (405) is opened at the top of the external square tube (404), and the bottom end of the connecting slot (405) is connected to the inner cavity of the external square tube (404); the circular rod (406) is slidably fitted in the connecting slot (405), and the bottom end of the circular rod (406) passes through the connecting slot (405) and is connected to the telescopic rod (401).

3. A wind turbine tower oil cleaning device according to claim 2, characterized in that: The displacement adjustment mechanism (40) further comprises a first-stage half-toothed ring (407), a limiting frame (408), a rotating plate (409) and a sliding notch (410), wherein the first-stage half-toothed ring (407) is arranged at the top of the positioning half-ring (10), the limiting frame (408) is symmetrically connected to the top of the inner wall of the positioning half-ring (10), and the top surface of the first-stage half-toothed ring (407) and the limiting frame (408) are slidably matched, the rotating plate (409) is connected to the inner wall of the first-stage half-toothed ring (407) in a circular array, and the rotating plate (409) is located at the top of the external square tube (404), the sliding notch (410) is opened in the middle of the rotating plate (409), and the sliding notch (410) passes through the rotating plate (409) from top to bottom, and the top of the circular rod (406) passes through the sliding notch (410); The inner walls of the two groups of the first-stage half gear rings (407) are symmetrically provided with third-stage fixing plates (4071), and the third-stage fixing plates (4071) are fixedly connected to the first-stage half gear rings (407) via positioning bolts.

4. A wind turbine tower oil cleaning device according to claim 3, characterized in that: The shift adjustment mechanism (40) further comprises a primary assembly plate (411), a primary drive motor (412) and a primary gear (413); the primary assembly plate (411) is fixedly connected to the front bottom end of the positioning half ring (10) located on the front side by means of positioning bolts; the primary drive motor (412) is fixedly connected to the top end of the primary assembly plate (411) by means of positioning bolts; the middle part of the bottom surface of the primary gear (413) is connected to the output shaft at the top of the primary drive motor (412); and the primary gear (413) is meshingly connected to the primary half gear ring (407).

5. The wind turbine tower oil cleaning device according to claim 1, characterized in that: The cleaning mechanism (50) further comprises a liquid storage box (504), a liquid replenishing pipe (505) and a solenoid valve (506); the liquid storage box (504) is connected to the top of the limiting frame (408); the liquid replenishing pipe (505) is connected to the middle of the top of the outer wall of the liquid storage box (504); and the solenoid valve (506) is arranged on the liquid replenishing pipe (505); A float switch is provided in the liquid storage box (504); A secondary fixing plate (5041) is symmetrically connected between the two groups of liquid storage boxes (504), and the secondary fixing plate (5041) is fixedly connected to the liquid storage box (504) via positioning bolts.

6. The wind turbine tower oil cleaning device according to claim 1, characterized in that: The cleaning mechanism (50) further comprises a stabilizing support (507), a pump body (508), a primary conduit (509), a secondary conduit (510) and a connecting pipe (511); the stabilizing support (507) is connected to the inner wall of the liquid storage box (504) in a circular array, and the stabilizing support (507) is connected to the hollow half ring (501); the pump body (508) is fixedly connected to the middle of the top end of the liquid storage box (504) by a positioning bolt; the primary conduit (509) is connected to the inner wall of the liquid storage box (504) in a circular array; and the primary conduit (510) is connected to the inner wall of the liquid storage box (504) by a positioning bolt. 09) is connected between the bottom end of the pump body (508) and the liquid storage box (504), the secondary conduit (510) is connected between the pump body (508) and the hollow half ring (501), the connecting pipe (511) is symmetrically arranged on the top of the hollow half ring (501), and one end of the connecting pipe (511) is connected to the hollow half ring (501) located on the front side, and the other end of the connecting pipe (511) is connected to the hollow half ring (501) located on the rear side.

7. The wind turbine tower oil cleaning device according to claim 1, characterized in that: The cleaning mechanism (50) further comprises a secondary half-toothed ring (512), a sleeve (513), a return spring (514), a push rod (515) and a circular plate (516); the secondary half-toothed ring (512) is arranged at the top of the hollow half ring (501); the sleeve (513) is connected to the inner wall of the secondary half-toothed ring (512) in a circular array; the return spring (514), the push rod (515) and the circular plate (516) are all arranged in the sleeve (513); the two ends of the return spring (514) are respectively connected to the sleeve (513) and the circular plate (516); the push rod (515) is connected to the middle part of the side of the circular plate (516) opposite to the return spring (514); and the end of the push rod (515) opposite to the circular plate (516) is connected to the scraper (503); and the outer wall of the circular plate (516) is slidably matched with the sleeve (513); The side of the scraper (503) opposite to the push rod (515) is configured as an inclined surface structure.

8. The wind turbine tower oil cleaning device according to claim 7, characterized in that: The cleaning mechanism (50) further comprises a stopper (517), a secondary gear (518), a secondary drive motor (519) and a secondary assembly plate (520), wherein the stopper (517) is arranged on the outer wall of the secondary half-toothed ring (512), and the stopper (517) is fixedly connected to the hollow half-ring (501) via a positioning bolt, the secondary gear (518) is meshingly connected to the right front of the secondary half-toothed ring (512) located on the front side, the secondary drive motor (519) is arranged below the secondary gear (518), and the output shaft at the top of the secondary drive motor (519) is connected to the middle of the bottom of the secondary gear (518), the secondary assembly plate (520) is fixedly connected to the bottom end of the secondary drive motor (519) via a positioning bolt, and the secondary assembly plate (520) is fixedly connected to the liquid storage box (504) via a positioning bolt; An anti-slip groove (521) is provided at the top of the secondary half gear ring (512), an anti-slip round rod (522) is slidably fitted in the anti-slip groove (521), and the top of the anti-slip round rod (522) is connected to the limiting member (517).

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