Flexible rail screwing and fastening device of wind power tower drum cleaning robot

Abstract

The utility model relates to a flexible track screw joint fastening device of a wind power tower drum cleaning robot, which comprises a supporting vertical plate, the lower part of one side plate surface of the supporting vertical plate is connected with a fixed side plate, and the fixed side plate is provided with a long strip hole along the length direction, which can be connected with a tower drum foundation bolt in a matching way and can fix the supporting vertical plate on a tower drum; the other side plate face of the supporting vertical plate is connected with a ratchet wheel fastening mechanism which is connected with the lower end of the flexible rail and used for retracting and releasing the flexible rail. The flexible track can be tightened through the ratchet wheel fastening mechanism, so that stable fastening of the flexible track is achieved, and the cleaning effect of the tower drum cleaning robot is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of wind power tower cleaning, in particular to a flexible track screw connection and fastening device for a wind power tower cleaning robot. Background Art

[0002] As the use time increases, oil will accumulate on the outer wall of the wind turbine tower. If the oil is not cleaned in time, it will not only affect the appearance of the tower, but also corrode the tower surface and easily induce fire accidents. Due to the huge size of wind turbine towers, traditional manual cleaning operations are inefficient, dangerous and costly. At present, some tower cleaning robots or devices have appeared, which can replace manual work to complete the tower cleaning operation, and their up and down movement in the tower mainly relies on traction ropes as flexible tracks for traction and control.

[0003] For example, the patent with application number 202311325713.0 discloses a stable adsorption wind turbine tower cleaning device, which includes a permanent magnet block that can be adsorbed on both sides of the wind turbine tower, a winch and a cleaning robot for cleaning. The permanent magnet block is provided with a rolling groove wheel, and the two ends of the winch are respectively provided with tension springs connected to the traction rope. The traction ropes at both ends are connected to the two ends of the cleaning robot through the rolling groove wheel guide, which is used to control the cleaning route of the cleaning robot. The invention has a simple structure and is easy to operate, and can quickly clean the surface of the tower.

[0004] Another example is the patent with application number 201811467093.3, which discloses a device for automatically cleaning the tower of a wind turbine, including: a lifting system, a cleaning system, a water jet system, a control system and auxiliary accessories. The lifting system includes a main frame, a hoist for lifting and lowering the equipment, and a magnetic component for providing adsorption force. The hoist is connected to one end of a traction rope, and the other end of the traction rope is fixed in a rotatable wind turbine cabin. The hoist moves up and down along the traction rope, thereby driving the entire equipment to move up and down, thereby realizing the automation of the wind turbine tower cleaning process.

[0005] Based on the above two patents, the traction rope serving as the flexible track is adsorbed on the tower and fixed through a device containing a magnetic component. This design is quick to assemble and disassemble and easy to operate. However, due to the limited adsorption force of the magnetic component, the flexible track is not firmly fixed, which leads to poor tower cleaning effect.

[0006] Therefore, in view of this, research and improvement are conducted on the existing structure and deficiencies, and a flexible track screw connection and fastening device for a wind power tower cleaning robot is provided, in order to achieve a purpose with greater practical value. Utility Model Content

[0007] In view of the deficiencies in the prior art, the utility model provides a flexible track screw-connecting and fastening device for a wind turbine tower cleaning robot to solve the problem that the flexible track of the existing tower cleaning robots is mostly fixed after being adsorbed on the tower by a device containing magnetic components, resulting in the flexible track being not firmly fixed and the tower cleaning effect being poor.

[0008] The utility model is realized through the following technical solutions:

[0009] A flexible track screw-connecting and fastening device for a wind turbine tower cleaning robot is provided, comprising a supporting upright plate, wherein a fixed side plate is connected to the lower portion of one side plate surface of the supporting upright plate, and an elongated hole is provided on the fixed side plate along its length direction, which can be matched with the tower anchor bolts and fix the supporting upright plate on the tower, and a ratchet fastening mechanism is connected to the other side plate surface of the supporting upright plate, which is connected to the lower end of the flexible track and retracts and extends the flexible track.

[0010] Furthermore, the ratchet fastening mechanism includes a shell, a fastening wheel support shaft with a spring insertion groove on the side is vertically protruded from the center of the inner side wall of the supporting vertical plate, and the fastening wheel is rotatably installed through the fastening wheel support shaft, the fastening wheel includes a rear cover and a ratchet which are coaxially connected and the centers of both are passed through the fastening wheel support shaft, a disc spring is provided in the rear cover, the two ends of the disc spring are respectively connected to the rear cover and the spring insertion groove, and a flexible guide rail that can pass through the shell is wound around the rear cover; the end of the fastening wheel support shaft is also rotatably connected to a handle in the shell, a swing groove is provided on the upper part of the side wall of the shell, the handle is movably arranged in the swing groove, and the upper end of the handle extends out of the shell through the swing groove, and the handle is also hinged with a shifter claw that can cooperate with the ratchet through a fixed shaft above the ratchet in the shell.

[0011] Furthermore, a claw spring which is usually in a stretched state is connected between the upper portion of the claw and the handle.

[0012] A pusher claw spring between the upper portion of the pusher claw and the handle is kept in a stretched state, so as to ensure that the pusher claw can exert a force on the ratchet wheel, thereby driving the ratchet wheel to rotate and wind the flexible track.

[0013] Furthermore, a fastening block support shaft is provided on the inner side wall of the shell below the fastening wheel support shaft, and the fastening block is hinged on the fastening block support shaft, a fastening block spring which is usually in a stretched state is connected between one end of the fastening block close to the lower part of the shell side wall and the inner side wall of the shell, and the fastening block is connected to a toggle column which passes through the outer side wall of the shell at this end, and an arc-shaped sliding groove which cooperates with the toggle column is opened on the outer side wall of the shell.

[0014] A fastening block is arranged in the shell, and the fastening block can be rotated and engaged with the ratchet wheel by toggling the toggle column, so as to ensure that the fastening wheel remains stationary when the handle is swung clockwise, and then the flexible track is tightened and fastened by reciprocatingly swinging the handle.

[0015] Furthermore, a side of the shell body facing away from the supporting vertical plate is open and a detachable end cover is installed at the open side by screws.

[0016] The shell is designed to be open, and the opening is closed by an end cover and screws, so that the internal ratchet structure can be easily repaired and maintained.

[0017] Furthermore, the supporting plate and the shell are detachably connected via fixing bolts and fixing nuts.

[0018] The supporting plate and the shell are connected by fixing bolts and nuts, which is convenient for installation, disassembly and maintenance.

[0019] Preferably, the side of the supporting vertical plate facing the tower is a U-shaped arc surface.

[0020] The U-shaped curved surface of the support vertical plate can fit more closely with the tower, making the connection between the support vertical plate and the tower more stable.

[0021] Beneficial effects of the utility model:

[0022] Compared with the prior art, the utility model utilizes the tower anchor bolts and the compression nuts to compress and fix the fastening device as a whole, and cooperates with the U-shaped arc surface on the side of the supporting vertical plate to fit with the tower surface to achieve horizontal support and vertical fixation of the device. By rotating the handle, the ratchet tightening mechanism can be used to tighten the flexible track, thereby achieving a stable tightening of the flexible track and ensuring the cleaning effect of the tower cleaning robot. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic structural diagram of a specific embodiment of the present invention.

[0024] Figure 2 It is a three-dimensional diagram of the supporting upright plate and the side plate of the present invention.

[0025] Figure 3 It is a stereogram of the present invention.

[0026] Figure 4 This is a diagram showing the internal structure of the ratchet fastening mechanism of the present invention.

[0027] Figure 5 for Figure 4 A larger picture of the part in the middle A is posted.

[0028] Figure 6 This is a structural diagram of the housing of the ratchet fastening mechanism of the present invention.

[0029] Figure 7 This is an exploded view of the fastening wheel.

[0030] Figure 8 This is a three-dimensional diagram of the handle.

[0031] Fig. 9 It is a schematic diagram of the cooperation between the handle and the fastening wheel.

[0032] As shown in the figure:

[0033] 100 is a supporting plate, 101 is a through hole, and 102 is a U-shaped arc surface;

[0034] 200 is a fixed side plate, 201 is a long hole;

[0035] 300 is a ratchet fastening mechanism, 310 is an end cover, 311 is an arc-shaped sliding groove, 320 is a housing, 321 is a fastening wheel support shaft, 322 is a spring insertion groove, 323 is a rope outlet hole, 324 is a fastening block, 325 is a fastening block support shaft, 326 is a fastening block spring, 327 is a toggle column, 328 is a swing groove, 330 is a fastening wheel, 331 is a disc spring, 332 is a ratchet, 333 is a back cover, 340 is a handle, 341 is a threaded blind hole, 342 is a fixing hole, 343 is a push claw, 344 is a push claw spring, 345 is a push claw toggle end, 351 is a fixing bolt, and 352 is a fixing nut;

[0036] 400 is a flexible track;

[0037] 500 is the tower anchor bolt. DETAILED DESCRIPTION

[0038] In order to clearly illustrate the technical features of this solution, this solution is described below through a specific implementation method.

[0039] A flexible track screw-connecting and fastening device for a wind turbine tower cleaning robot comprises a supporting upright plate 100, a fixed side plate 200 is connected to the lower portion of one side plate surface of the supporting upright plate 100, and the fixed side plate 200 is provided with elongated holes 201 along its length direction which can cooperate with tower anchor bolts 500 to fix the supporting upright plate 100 to the tower. After the tower anchor bolts 500 pass through the elongated holes 201 on the fixed side plate 200, they cooperate with clamping nuts to clamp the fixed side plate 200, and the elongated holes 201 can adapt to different distances between the outer wall of the tower and the anchor bolts 500.

[0040] The side of the support plate 100 facing the tower is a U-shaped arc surface 102 that fits the tower surface, and the other side of the support plate 100 is connected to a ratchet fastening mechanism 300 that is connected to the lower end of the flexible track 400 and retracts and releases the flexible track 400. A rope outlet hole 323 for the flexible track 400 to pass through is provided near the edge of the upper side of the housing 320.

[0041] The ratchet fastening mechanism 300 includes a housing 320, and through holes 100 are provided on the housing 320 and the support plate 100, and the two are detachably connected by fixing bolts 351 and fixing nuts 352. A fastening wheel support shaft 321 with a spring insertion groove 322 on the side is vertically protruded from the housing 320 at the center of the inner side wall facing the support plate 100, and a fastening wheel 330 is rotatably mounted on the fastening wheel support shaft 321. The fastening wheel 330 includes a rear cover 333 and a ratchet 332 which are coaxially connected and both of which are centrally penetrated by the fastening wheel support shaft 321, and the ratchet 332 is spoke-shaped.

[0042] A disc spring 331 is provided inside the rear cover 333, and the two ends of the disc spring 331 are respectively connected to the rear cover 333 and the spring insertion slot 322. A flexible guide rail 500 that can pass through the shell 320 is wound around the rear cover 333. When the fastening wheel 330 rotates counterclockwise, the disc spring 321 is tightened, and when it rotates clockwise, the disc spring 321 is relaxed.

[0043] The end of the fastening wheel support shaft 321 is also rotatably connected with a handle 340 in the housing 320. A fixing hole 342 is provided at the lower end of the handle 340 for matching with the fastening wheel support shaft 321. A swinging groove 328 is provided at the upper part of the side wall of the housing 320. The handle 340 is movably arranged in the swinging groove 328, and the upper end of the handle 340 extends out of the housing 320 through the swinging groove 328. The handle 340 is also hinged with a finger 343 that can match the ratchet 332 through a fixed shaft above the ratchet 332 in the housing 320. A finger spring 344 that is usually in a stretched state is connected between the upper part of the finger 343 and the handle 340. One end of the finger spring 344 is fixed to the handle 340 by a screw, and a threaded blind hole 341 is provided on the handle 340 for matching with the screw.

[0044] When the handle 340 swings counterclockwise, the pusher claw 343 hinged thereto pushes the ratchet 332 to drive the fastening wheel 330 to rotate counterclockwise, winding the flexible track 400 and compressing the disc spring 321, and the fastening block 324 can prevent the fastening wheel 330 from rotating in the opposite direction.

[0045] The inner side wall of the housing 320 is provided with a fastening block support shaft 325 below the fastening wheel support shaft 321, and a fastening block 324 is hinged on the fastening block support shaft 325. A fastening block spring 326 which is usually in a tension state is connected between one end of the fastening block 324 close to the lower part of the side wall of the housing 320 and the inner side wall of the housing 320. The fastening block 324 is connected to a toggle column 327 which penetrates the outer side wall of the housing 320 at this end, and an arc-shaped sliding groove 311 which cooperates with the toggle column 327 is provided on the outer side wall of the housing 320. The toggle column 327 corresponds to the position of the arc-shaped sliding groove 311, and can extend from the arc-shaped sliding groove 311 and move along the arc-shaped sliding groove 311, thereby driving the fastening block 324 to swing.

[0046] The side of the shell 320 facing away from the supporting vertical plate 100 is open and a detachable end cover 310 is installed at the open portion by screws.

[0047] The working process of this utility model:

[0048] When using this device, first adjust the vertical position of the device, pass the tower anchor bolt 500 through the long hole 201 on the fixed side plate 200, adjust the horizontal position of the device so that the supporting vertical plate 100 is supported on the outer wall of the tower, and use the clamping nut and the tower anchor bolt 500 to tighten the fixed side plate 200 to complete the horizontal and vertical fixation of the device.

[0049] The U-shaped arc surface 102 of the support plate 100 should be matched with the tower, so that the support plate 100 and the tower are more closely fitted to ensure the fixing effect. After the device is fixed, the upper end of the flexible track 400 is fixed in the rotatable wind turbine cabin, and its lower end is wound around the wheel disc of the rear cover of the fastening wheel 330. The handle 340 is swung counterclockwise to drive the fastening wheel 330 to rotate counterclockwise, wind the flexible track 400 and compress the disc spring 321, and then the handle 340 is swung clockwise to reset it. The fastening block 324 ensures that the fastening wheel 330 is stationary when the handle 340 is swung clockwise. The handle 340 is swung back and forth until the flexible track 400 is taut, and finally the flexible track 400 is fastened, thereby ensuring the cleaning effect of the tower cleaning robot.

[0050] The overall dimensions of the ratchet fastening mechanism 330 can be adjusted according to the size of the fastening wheel 340. When a ratchet fastening mechanism 330 of a different size is required during operation, it is only necessary to remove the fixing bolts 351 and the fixing nuts 352 between the ratchet fastening mechanism 330 and the supporting plate 100. The operation is convenient and quick.

[0051] The length of the flexible track 400 wound around the fastening wheel 340 can be preset and adjusted according to different wind power tower heights.

[0052] When the tower cleaning robot finishes its operation, the toggle column 327 and the toggle end 345 of the toggle claw are simultaneously pushed clockwise to make the fastening block 324 and the toggle claw 343 release the ratchet 332. Under the action of the elastic force of the compressed disc spring 321, the fastening wheel 330 rotates clockwise to loosen the flexible track 400. Then, the upper end of the flexible track 400 is removed from the wind turbine cabin, and finally the clamping nut is unscrewed to remove the device from the tower.

[0053] Of course, the above description is not limited to the above examples. The technical features not described in the present invention can be achieved by or by adopting the existing technology, which will not be repeated here. The above embodiments and drawings are only used to illustrate the technical scheme of the present invention and are not limitations of the present invention. The present invention is described in detail with reference to the preferred implementation methods. Ordinary technicians in this field should understand that the changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention do not deviate from the purpose of the present invention and should also fall within the scope of protection of the claims of the present invention.

Claims

1. A flexible track screw fastening device for a wind turbine tower cleaning robot, characterized in that: It includes a supporting vertical plate, a fixed side plate is connected to the lower part of one side plate surface of the supporting vertical plate, and a long hole is opened on the fixed side plate along its length direction, which can be connected with the tower anchor bolts and fix the supporting vertical plate on the tower, and a ratchet fastening mechanism is connected to the lower end of the flexible track and retracts and extends the flexible track on the other side plate surface.

2. The flexible track screw fastening device for a wind turbine tower cleaning robot according to claim 1 is characterized in that: The ratchet fastening mechanism includes a shell, a fastening wheel support shaft with a spring insertion groove on the side is vertically protruded from the center of the inner side wall of the supporting vertical plate, and the fastening wheel is rotatably installed through the fastening wheel support shaft, the fastening wheel includes a rear cover and a ratchet which are coaxially connected and the centers of both are passed through the fastening wheel support shaft, a disc spring is provided in the rear cover, the two ends of the disc spring are respectively connected to the rear cover and the spring insertion groove, and a flexible guide rail that can pass through the shell is wound around the rear cover; the end of the fastening wheel support shaft is also rotatably connected to a handle in the shell, a swing groove is provided on the upper part of the side wall of the shell, the handle is movably arranged in the swing groove, and the upper end of the handle extends out of the shell through the swing groove, and the handle is also hinged with a shifting claw that can cooperate with the ratchet through a fixed shaft above the ratchet in the shell.

3. The flexible track screw fastening device for a wind turbine tower cleaning robot according to claim 2 is characterized in that: A claw spring which is normally in a stretched state is connected between the upper part of the claw and the handle.

4. The flexible track screw fastening device for a wind turbine tower cleaning robot according to claim 2 is characterized in that: A fastening block support shaft is arranged on the inner side wall of the shell below the fastening wheel support shaft, and the fastening block is hinged on the fastening block support shaft, a fastening block spring which is usually in a stretched state is connected between one end of the fastening block close to the lower part of the shell side wall and the inner side wall of the shell, and a toggle column which passes through the outer side wall of the shell is connected to the end of the fastening block, and an arc-shaped sliding groove which cooperates with the toggle column is opened on the outer side wall of the shell.

5. The flexible track screw fastening device for a wind turbine tower cleaning robot according to claim 1 is characterized in that: The side of the shell body facing away from the supporting vertical plate is open, and a detachable end cover is installed at the open side by screws.

6. The flexible track screw fastening device for a wind turbine tower cleaning robot according to claim 1, characterized in that: The supporting vertical plate and the shell are detachably connected via fixing bolts and fixing nuts.

7. The flexible track screw fastening device for a wind turbine tower cleaning robot according to claim 1, characterized in that: The side of the supporting vertical plate facing the tower is a U-shaped arc surface.

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