A spraying gel coat equipment for surface treatment of wind turbine cabin cover

Abstract

The present invention discloses a gel coat spraying device for surface treatment of a wind turbine nacelle in the field of gel coat spraying technology. The device comprises a base, a spraying structure is mounted on the base, a driving mechanism is mounted on the base, and a rotating mechanism is mounted above the driving mechanism. The spraying structure comprises: a frame, a guide rail is mounted on the bottom of the frame; an adjusting frame, a limit ring is arranged at the bottom of the adjusting frame; a scissor frame, the two end pivots of the top of the first scissor frame are slidably arranged in the guide rail, and the bottom of the last scissor frame is rotatably arranged in the limit ring; nozzles, all of which are rotatably arranged at the central hinge point of the scissor frame; a spray hood; a gate; an adjusting mechanism, which is used to drive the spray hood to move along the axial direction of the nozzle, and is also used to drive the gate to rotate to change the overlap between the gate and the feeding end of the nozzle; by combining the linear motion of the spraying structure with the rotation, and changing the glue output amount and range of the nozzle, the device can spray the mold end face at one time, avoiding the problem of different and uneven gel coat curing degrees caused by multiple equipment replacements.

Description

Technical Field

[0001] The invention relates to the technical field of gel coat spraying, in particular to a gel coat spraying device for surface treatment of a wind turbine cabin cover. Background Art

[0002] The nacelle of a wind turbine contains the key equipment of the wind turbine. When making the nacelle cover of a wind turbine, due to its large size, it is usually formed by hand lay-up or vacuum infusion by molding local areas multiple times and then assembling. Before infusion, gel coat needs to be sprayed on the surface of the mold to improve the various properties of the nacelle cover, such as anti-aging, UV protection, flame retardancy, etc.

[0003] When spraying gel coat, the side walls and bottom of the nacelle can be sprayed evenly in one time because they are large and flat. However, the ends of the nacelle are often different in size. First, refer to Figure 1 , 2 When spraying the S area, you only need to set up the frame on the left and right sides of the mold edge, and spray along the edge to evenly spray all areas except the two ends. When spraying the two end areas, the M (M1+M2 or M1+M3, depending on the running trajectory of the equipment during spraying) area is similar to the S area, both of which are fixed and regular in size. You only need to distribute the spray head according to its size characteristics and make the spray head move in a straight line for spraying, which can be sprayed quickly; because of its gradual size characteristics, the M2 or M3 area often requires manual adjustment of the spray actuator state for secondary spraying, which is inefficient and there is a long time difference during equipment replacement, resulting in different curing degrees of the gel coat sprayed twice, affecting the quality of the gel coat molding, and the thickness of the gel coat sprayed twice is prone to deviation, further reducing the quality and effect of the gel coat. Summary of the invention

[0004] The technical problem of the present invention is to provide a spraying gel coat equipment for the surface treatment of the wind turbine nacelle cover. By combining the linear movement and rotation of the spraying structure and changing the glue output and range of the nozzle, the equipment can spray the end face of the mold at one time, avoiding multiple replacements of the equipment, which would lead to different and uneven curing degrees of the gel coat.

[0005] To achieve the above object, the present invention provides the following technical solution: a spraying gel coat device for treating the surface of a wind turbine nacelle, comprising a base, a spraying structure is installed on the base, a driving mechanism for driving the spraying structure to move horizontally is installed on the base, and a rotating mechanism for adjusting the inclination angle of the spraying structure is installed above the driving mechanism;

[0006] The spraying structure comprises:

[0007] A frame is installed at the rotating end of the rotating mechanism, and a guide rail is installed at the bottom of the frame;

[0008] An adjustment frame is elastically slidably arranged on the frame, and a limiting ring is arranged at the bottom of the adjustment frame;

[0009] The scissor frames are arranged in a linear array along the length direction of the adjustment frame, and the adjacent ends are rotatably arranged at the same side pivots. The pivots at both ends of the top of the first scissor frame are slidably arranged in the guide rail, and the bottom of the last scissor frame is rotatably arranged in the limit ring; the scissor frame at the end can be driven to move by moving the limit ring to adjust the length of the scissor frame, and the moving distance of the central hinge point of the scissor frame increases from top to bottom;

[0010] The nozzles are in multiple relation with the number of the scissor frames, and are all rotatably arranged at the central hinge point of the scissor frames. The spacing of the nozzles can be changed by adjusting the length of the scissor frames, thereby changing the density of the nozzles;

[0011] A spray hood is slidably arranged at the discharge end of the nozzle and is used to control the spraying range of the nozzle;

[0012] The gate is rotatably arranged at the feeding end of the nozzle and is used to control the amount of glue fed into the nozzle;

[0013] The adjusting mechanism is used to drive the spray hood to move along the axial direction of the nozzle to adjust the spray range of the nozzle, and the moving distance of the spray hood increases from top to bottom, and the spray range adjusted by the nozzle increases from top to bottom; it is also used to drive the gate plate to rotate, change the overlap between the gate plate and the feed end of the nozzle, and adjust the glue feed amount of the nozzle, and the feed amount adjusted by the nozzle increases from top to bottom.

[0014] As a further solution of the present invention, the number of the adjustment mechanisms is in multiple relation with the number of the nozzles, a trigger is installed at the bottom of the guide rail, the trigger is used to trigger the adjacent adjustment mechanism to work, the adjustment mechanism is triggered sequentially from top to bottom, and each of the adjustment mechanisms includes:

[0015] An incomplete gear is fixed to the gate plate, and its rotation point coincides with the rotation point of the gate plate. The diameter of the incomplete gear decreases from top to bottom, so that the deflection angle of the gate plate increases from top to bottom.

[0016] A driving gear is meshed with the incomplete gear and is provided with a rotating shaft for coaxial rotation. The rotating shaft is fixed to the nozzle through a connecting member. The first driving gear is meshed with the trigger member.

[0017] An adjustment rack is fixed to the rotating shaft, and the bottom of the rack is meshed with a driving gear in an adjacent driving mechanism below;

[0018] The pitch-adjustable gear is fixed to the incomplete gear and the rotation point coincides with that of the incomplete gear;

[0019] The pitch-adjusting screw is coaxially fixed with the pitch-adjusting gear and is threadedly connected with the spray hood.

[0020] As a further solution of the present invention, each of the adjustment racks is provided with a connection groove and a connection key on both sides thereof, and the adjacent adjustment racks are slidably connected via the connection groove and the connection key, which can enhance the stability of the adjustment racks.

[0021] As a further solution of the present invention, the driving mechanism comprises:

[0022] The driving motor is slidably arranged on the base through the slider, and the output shaft is equipped with a driven gear;

[0023] The driving rack is fixed on the base and meshes with the driven gear.

[0024] As a further solution of the present invention, the base comprises

[0025] There are several crossbars connected end to end;

[0026] A connector, used to connect adjacent cross bars, wherein the connector and the cross bars are connected by bolts;

[0027] The plug is plugged into the end of the cross bar and connected to the cross bar through bolts.

[0028] As a further solution of the present invention, the rotating mechanism comprises

[0029] A rotating motor, wherein the output shaft of the rotating motor is fixed to the frame and is used to adjust the angle of the frame;

[0030] The telescopic rod is arranged between the rotating motor and the driving motor, and is used to adjust the rotating motor and the height of the frame and change the initial position of the nozzle.

[0031] As a further solution of the present invention, a trigger mechanism for triggering the rotation of the rotary motor is installed at the telescopic end of the telescopic rod, and the trigger mechanism includes:

[0032] A sliding sleeve is slidably arranged with the telescopic end of the telescopic rod and can be positioned by bolts, and a protrusion is arranged at the end;

[0033] The housing is rotatably arranged with the sliding sleeve, and a groove is arranged at the end adjacent to the sliding sleeve, and when the groove and the protrusion overlap, the housing can be positioned;

[0034] The connecting rod is arranged in the shell, and the end thereof passes through the shell. The end of the connecting rod is elastically connected to a trigger rod through a trigger spring, and the end of the trigger rod is provided with a pressure sensor.

[0035] As a further solution of the present invention, the connecting rod is slidably arranged with the outer shell, and an adjusting screw is arranged between the connecting rod and the outer shell. The adjusting screw is threadedly connected with the outer shell and rotatably arranged with the connecting rod, and an adjusting groove is arranged at the end of the adjusting screw.

[0036] As a further solution of the present invention, a collecting tank is provided on the opening side of the spray hood, and a hose is fixedly connected to the collecting tank.

[0037] Compared with the prior art, the present invention has the following beneficial effects:

[0038] In the present invention, the spray structure is horizontally moved and tilted to spray the regular part first, and then the spray area below the spray structure is kept in a fixed position and the spray area above is horizontally moved by rotating and changing the length of the spray structure, so that the irregular area is sprayed, so that the equipment can spray the mold end face at one time, avoiding the problem of different and uneven curing degree of gel coat caused by multiple equipment changes;

[0039] In the present invention, when the spraying structure rotates, the spray hood is driven to move along the axial direction of the nozzle to adjust the spraying range of the nozzle. The moving distance of the spray hood increases from top to bottom, and the spraying range adjusted by the nozzle increases from top to bottom, so that the actual spraying range of the nozzle decreases from top to bottom. Since the upper and lower linear speeds of the spraying structure are different when the spraying structure rotates, the spraying time of the spraying structure from top to bottom is different, and the actual spraying range of the nozzle decreases from top to bottom, so that the actual spraying range is V-shaped, which can reduce the time for spraying the heavy sticking area from top to bottom and improve the uniformity of spraying; the gate plate is also driven to rotate, and the overlap between the gate plate and the feed end of the nozzle is changed to adjust the glue feeding amount of the nozzle. The feed amount adjusted by the nozzle increases from top to bottom, and the glue feeding amount of the nozzle decreases from top to bottom, which can make the nozzle thickness gradually thinner from top to bottom, further improving the uniformity of spraying. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0041] Figure 1 This is a schematic diagram of the structure of the present invention in use state;

[0042] Figure 2 It is a schematic diagram of the movement state of the spraying structure in the present invention;

[0043] Figure 3 A schematic diagram of the change in the spacing between nozzles in an irregular area in the present invention;

[0044] Figure 4 This is a schematic diagram of the change of the spraying area due to the movement of the spray hood in the present invention;

[0045] Figure 5 It is a schematic diagram of the overall structure of the present invention;

[0046] Figure 6 For the present invention Figure 5 The enlarged structural diagram at A in the middle;

[0047] Figure 7 For the present invention Figure 5 The enlarged structural diagram at B in the middle;

[0048] Figure 8 For the present invention Figure 5 The enlarged structural diagram at C in the middle;

[0049] Fig. 9 It is a schematic diagram of the structure of the rack and its connection relationship in the present invention;

[0050] Fig.10 It is a schematic diagram of the exploded structure of the nozzle and its connection relationship in the present invention;

[0051] Fig.11 It is a schematic diagram of the change of the motion state of the scissor frame in the present invention;

[0052] Fig.12 A schematic diagram of the connection relationship between the adjustment gears in the present invention;

[0053] Fig.13 It is a schematic diagram of the structure of the trigger mechanism in the present invention;

[0054] Fig.14 For the present invention Fig.13 The enlarged structural diagram at D in the middle;

[0055] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0056] 1. Base; 11. Crossbar; 12. Connecting piece; 13. Plug; 2. Spraying structure; 21. Frame; 22. Guide rail; 23. Adjusting frame; 24. Limiting ring; 25. Scissor frame; 26. Nozzle; 27. Spray hood; 271. Collecting tank; 28. Gate; 3. Adjusting mechanism; 31. Trigger; 32. Incomplete gear; 33. Driving gear; 34. Rotating shaft; 35. Adjusting rack; 351. Connecting groove; 352. Connecting key; 36. Pitch-adjusting gear; 37. Pitch-adjusting screw; 4. Driving mechanism; 41. Driving motor; 42. Driven gear; 43. Driving rack; 5. Rotating mechanism; 51. Rotating motor; 52. Telescopic rod; 6. Triggering mechanism; 61. Sliding sleeve; 611. Protrusion; 62. Housing; 621. Groove; 63. Connecting rod; 64. Trigger rod; 65. Adjusting screw. DETAILED DESCRIPTION

[0057] 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.

[0058] See also Figure 1-13 The present invention provides a technical solution: a spraying gel coat device for surface treatment of a wind turbine nacelle, comprising a base 1, on which a spraying structure 2 is installed: a driving mechanism 4 for driving the spraying structure 2 to move horizontally is installed on the base 1, and a rotating mechanism 5 for adjusting the inclination angle of the spraying structure 2 is installed above the driving mechanism 4;

[0059] See also Figure 2 The best effect is achieved when spraying twice or more (i.e., two times back and forth along the mold). Each spraying includes three processes, and the mold end surface to be sprayed area is divided into M1, M2 and M3 by two dividing lines.

[0060] The three processes are:

[0061] by Figure 2 For example, in the first stage, the spray structure 2 is initially adjusted to be parallel to and in contact with the left bevel of the mold. The spray structure 2 moves at this tilt angle and passes through M3 and M1 until the spray structure 2 moves to coincide with the right dividing line (i.e., the intersection of M1 and M2). During this process, the spray structure does not need to adjust its angle, and the plane it sweeps is M.

[0062] Phase II,

[0063] After the spraying structure 2 moves to coincide with the left dividing line, the spraying structure 2 enters M2. When the spraying structure 2 sprays, the whole structure rotates around the lower vertex of the M2 area and rises until the spraying structure 2 rotates to a vertical state;

[0064] In the third stage, the spray structure 2 is in the same state as the second stage except that the spray structure 2 is lowered as a whole, until the spray structure 2 is parallel to and fits with the right bevel of the mold;

[0065] The second pass is opposite to the first pass. The spraying structure 2 keeps tilting and moves through M2 and M1, and rotates through M3, so that the inner wall of the mold is sprayed more than once. The glue sprayed by the spraying structure 2 moves horizontally to avoid the influence of the change of the spraying path on the uniformity. The actual number of spraying times can be increased or decreased according to actual needs;

[0066] For usage, see Figure 1 , Figure 2 and Figure 3 , the base 1 is placed horizontally on the end of the wind turbine cabin cover mold, and the base 1 is adjusted to be parallel to the end of the mold, the spraying structure 2 is tilted and fits one side of the mold, and the bottom is in contact with the mold; the spraying structure 2 is driven by the driving mechanism 4 to move horizontally along the base 1;

[0067] When the spraying structure 2 rotates toward the vertical state, the top of the spraying structure 2 continues to move with the driving mechanism 4. At the same time, the rotating mechanism 5 drives the top of the spraying structure 2 to rotate. The spraying structure 2 has both rotational freedom and horizontal movement freedom. In addition, the length of the spraying structure 2 increases, so that the bottom of the spraying structure 2 is always in contact with the bottom of the mold until the spraying structure 2 is perpendicular to the mold.

[0068] When the spray structure 2 rotates toward the inclined state, the top of the spray structure continues to move and rotate, and the bottom of the spray structure 2 shrinks, ensuring that the bottom of the spray structure 2 is always in contact with the bottom of the mold;

[0069] The spraying structure 2 comprises:

[0070] A frame 21 is installed at the rotating end of the rotating mechanism 5, and a guide rail 22 is installed at the bottom of the frame 21;

[0071] An adjustment frame 23 is elastically slidably arranged on the frame 21, and a limiting ring 24 is arranged at the bottom of the adjustment frame 23;

[0072] The scissor frames 25 are arranged in a linear array along the length direction of the adjustment frame 23, and the adjacent ends are rotatably arranged at the same side pivots. The pivots at the top and the bottom of the first scissor frame 25 are slidably arranged in the guide rail 22, and the bottom of the last scissor frame 25 is rotatably arranged in the limit ring 24; the scissor frame 25 at the end can be driven to move by moving the limit ring 24 to adjust the length of the scissor frame 25, and the moving distance of the scissor frame 25 from the top to the bottom center hinge point increases gradually;

[0073] The nozzles 26 are in multiple relation with the number of the scissor frames 25, and are all rotatably arranged at the central hinge point of the scissor frames 25. The spacing of the nozzles 26 can be changed by adjusting the length of the scissor frames 25, thereby changing the density of the nozzles (26);

[0074] A spray hood 27 is slidably disposed at the discharge end of the nozzle 26 and is used to control the spraying range of the nozzle 26;

[0075] The gate 28 is rotatably disposed at the feeding end of the nozzle 26 and is used to control the amount of glue fed from the nozzle 26;

[0076] The regulating mechanism 3 is used to drive the spray hood 27 to move along the axial direction of the nozzle 26 to adjust the spray range of the nozzle 26, and the moving distance of the spray hood 27 increases from top to bottom, and the spray range adjusted by the nozzle 26 increases from top to bottom, so that the actual spray range of the nozzle 26 decreases from top to bottom. When the spraying structure 2 rotates, the upper and lower linear speeds of the spraying structure 2 are different, resulting in different spraying times of the spraying structure 2 from top to bottom. The actual spraying range of the nozzle 26 decreases from top to bottom, making the actual spraying range V-shaped, which can reduce the spraying time of the heavy sticking area from top to bottom, and improve the uniformity of spraying; it is also used to drive the gate plate 28 to rotate, change the overlap between the gate plate 28 and the feed end of the nozzle 26, and adjust the glue feeding amount of the nozzle 26. The feed amount adjusted by the nozzle 26 increases from top to bottom, and the glue feeding amount of the nozzle 26 decreases from top to bottom, which can make the thickness of the nozzle 26 gradually thinner from top to bottom, further improving the uniformity of spraying;

[0077] Specifically, when the spray structure 2 is used, the bottom of the adjustment frame 23 is in contact with the bottom of the inner side of the mold, so that the adjustment frame 23 is in a slightly charged state (the spring between the adjustment frame 23 and the frame 21 is compressed). When the spray structure 2 is parallel to the side of the mold, the nozzles 26 are evenly distributed and extend to the bottom of the mold;

[0078] When the spraying structure 2 rotates to the vertical state, the bottom of the adjusting frame 23 is restricted by the bottom of the mold and stops moving, while the top of the frame 21 continues to move, resulting in a position difference between the adjusting frame 23 and the frame 21. The adjusting frame 23 accumulates power and drives the bottom scissor frame 25 to rise through the limit ring 24. The central hinge point of the scissor frame 25 drives the nozzle 26 to rise. The distance of the nozzle 26 moving from bottom to top decreases, so that the spacing between the nozzles 26 can be kept consistent and concentrated, so that all the nozzles 26 can be kept in use, avoiding empty spraying or stagnation, resulting in waste of resources and glue solidification in the unused nozzles 26, affecting the next spraying;

[0079] At the same time, the regulating mechanism 3 moves the spray hood 27 toward the discharge end of the nozzle 26, and the spray hood 27 blocks the periphery of the gel coat, reducing the spraying range of the gel coat (see Figure 4 The actual spraying range of the nozzle 26 decreases from top to bottom, so that the actual spraying range is V-shaped, which can reduce the spraying time of the heavy pasting area from top to bottom and improve the uniformity of the spraying;

[0080] The overlap between the gate 28 and the feeding end of the nozzle 26 increases from top to bottom, and the amount of glue fed from the nozzle 26 decreases from top to bottom, so that the thickness of the nozzle 26 gradually becomes thinner from top to bottom, further improving the uniformity of spraying;

[0081] In summary, in the present invention, the spray structure 2 is horizontally moved and tilted, and the regular part is sprayed first, and then the spray area below the spray structure 2 is kept in a fixed position and the spray area above is horizontally moved by rotating and changing the length of the spray structure 2, and the irregular area is sprayed, so that the equipment can spray the end face of the mold at one time, avoiding the problem of different and uneven curing degree of the gel coat caused by multiple replacement of the equipment;

[0082] In addition, when the spraying structure 2 rotates, the spray hood 27 is driven to move along the axial direction of the nozzle 26 to adjust the spraying range of the nozzle 26. The moving distance of the spray hood 27 increases from top to bottom, and the spraying range adjusted by the nozzle 26 increases from top to bottom, so that the actual spraying range of the nozzle 26 decreases from top to bottom. Since the upper and lower linear speeds of the spraying structure 2 are different when the spraying structure 2 rotates, the spraying time of the spraying structure 2 from top to bottom is different. The actual spraying range of the nozzle 26 decreases from top to bottom, making the actual spraying range V-shaped, which can reduce the time for spraying the heavy-attached area from top to bottom and improve the uniformity of spraying; the gate plate 28 is also driven to rotate to change the overlap between the gate plate 28 and the feed end of the nozzle 26, so as to adjust the glue feeding amount of the nozzle 26, the feed amount adjusted by the nozzle 26 increases from top to bottom, and the glue feeding amount of the nozzle 26 decreases from top to bottom, which can make the thickness of the nozzle 26 gradually thinner from top to bottom, further improving the uniformity of spraying.

[0083] As a further solution of the present invention, the number of the adjustment mechanisms 3 is in multiple relation with the number of the nozzles 26. A trigger member 31 is installed at the bottom of the guide rail 22. The trigger member 31 is used to trigger the adjacent adjustment mechanism 3 to work. The adjustment mechanisms 3 are triggered sequentially from top to bottom. Each of the adjustment mechanisms 3 includes:

[0084] The incomplete gear 32 is fixed to the gate plate 28, and the rotation point coincides with the rotation point of the gate plate 28. The diameter of the incomplete gear 32 decreases from top to bottom, so that the deflection angle of the gate plate 28 increases from top to bottom.

[0085] The driving gear 33 is meshed with the incomplete gear 32 and is provided with a rotating shaft 34 for coaxial rotation. The rotating shaft 34 is fixed to the nozzle 26 through a connecting member. The first driving gear 33 is meshed with the trigger member 31;

[0086] The adjusting rack 35 is fixed to the rotating shaft 34, and the bottom thereof is meshed with the driving gear 33 in the adjacent driving mechanism 4 below;

[0087] The pitch-adjusting gear 36 is fixedly mounted on the incomplete gear 32 and the rotation point coincides with the rotation point of the incomplete gear 32;

[0088] The pitch adjusting screw 37 is coaxially fixed with the pitch adjusting gear 36 and is threadedly connected with the spray hood 27;

[0089] For details, see Figure 5 , Figure 6 and Figure 7 When the nozzle 26 moves, the incomplete gear 32, the driving gear 33 and the adjusting rack 35 move accordingly. Since there is a speed difference between adjacent nozzles 26, displacement occurs between adjacent nozzles 26, so that the adjusting rack 35 and the adjacent driving gear 33 are displaced, so that the driving gear 33 rotates, the driving gear 33 drives the incomplete gear 32 to rotate, and the incomplete gear 32 drives the gate 28 and the pitch-adjusting gear 36 to rotate;

[0090] As the gate 28 rotates, the overlapping area between the gate 28 and the nozzle 26 and the feeding end of the nozzle 26 changes, thereby changing the amount of glue fed into the nozzle 26;

[0091] The pitch-adjusting gear 36 drives the pitch-adjusting screw 37 to rotate, and the pitch-adjusting screw 37 drives the spray hood 27 to move relative to the nozzle 26, thereby changing the spraying range of the nozzle 26 (see Figure 4 middle ab state);

[0092] Since the diameter of the incomplete gear 32 decreases from top to bottom, the incomplete gear 32 from top to bottom and the driving gear 33 can have different transmission ratios, the deflection angle of the incomplete gear 32 from top to bottom increases, so that the deflection angle of the gate plate 28 from top to bottom increases, and the amount of glue fed from the nozzle 26 decreases from top to bottom, so that the thickness of the nozzle 26 can be gradually thinned from top to bottom, thereby improving the uniformity of spraying;

[0093] At the same time, the rotation angle of the pitch-adjusting gear 36 also increases, so that the moving distance of the spray hood 27 increases, so that the actual spraying range of the nozzle 26 decreases from top to bottom, so that the actual spraying range is V-shaped, which can reduce the time of spraying the heavy-pasting area from top to bottom, and further improve the uniformity of spraying;

[0094] The trigger member 31 drives the first driving gear 33 to rotate and guides the first adjusting rack 35 to further enhance the stability of the adjusting rack 35 .

[0095] As a further solution of the present invention, each of the adjustment racks 35 is provided with a connecting groove 351 and a connecting key 352 on both sides thereof, and the adjacent adjustment racks 35 are slidably connected via the connecting groove 351 and the connecting key 352 , which can enhance the stability of the adjustment racks 35 .

[0096] As a further solution of the present invention, the driving mechanism 4 includes:

[0097] The driving motor 41 is slidably arranged with the base 1 through the slider, and the output shaft is equipped with a driven gear 42;

[0098] The driving rack 43 is fixed on the base 1 and meshes with the driven gear 42;

[0099] For details, see Figure 5 and Figure 8 The driving motor 41 drives the driven gear 42 to rotate through the output shaft, and the driven gear 42 moves under the action of the driving rack 43, so that the driving motor 41 moves, and the rotating mechanism 5 and the spraying structure 2 above the driving motor 41 move with a power source.

[0100] As a further solution of the present invention, the base 1 comprises

[0101] Crossbars 11, which are in multiple numbers and connected end to end;

[0102] A connecting piece 12 is used to connect adjacent cross bars 11, and the connecting piece 12 and the cross bar 11 are connected by bolts;

[0103] The plug 13 is plugged into the end of the cross bar 11 and connected to the cross bar 11 by bolts; it is used to limit the driving motor 41;

[0104] For details, see Figure 5 and Figure 8 The connector 12 can connect the two cross bars 11, and the length can be adjusted according to the end width of the mold, so that the device can be used for molds of different sizes.

[0105] As a further solution of the present invention, the rotating mechanism 5 includes

[0106] A rotating motor 51, wherein the output shaft of the rotating motor 51 is fixed to the frame 21 and is used to adjust the angle of the frame 21;

[0107] The telescopic rod 52 is disposed between the rotating motor 51 and the driving motor 41 and is used to adjust the height of the rotating motor 51 and the frame 21 and change the initial position of the nozzle 26;

[0108] Specifically, the telescopic rod 52 can connect the rotating motor 51 and the driving motor 41, thereby transmitting horizontal power, and can also adjust the initial position of the nozzle 26 and the compression state of the adjustment frame 23; the rotating motor 51 drives the frame 21 to rotate through the output shaft, thereby causing the spraying structure 2 to rotate as a whole, changing the spraying range and thickness.

[0109] As a further solution of the present invention, a trigger mechanism 6 for triggering the rotation of the rotary motor 51 is installed at the telescopic end of the telescopic rod 52, and the trigger mechanism 6 includes:

[0110] The sliding sleeve 61 is slidably arranged with the telescopic end of the telescopic rod 52 and can be positioned by bolts, and a protrusion 611 is arranged at the end;

[0111] The housing 62 is rotatably arranged with the sliding sleeve 61, and a groove 621 is arranged at the end adjacent to the sliding sleeve 61. When the groove 621 overlaps with the protrusion 611, the housing 62 can be positioned;

[0112] The connecting rod 63 is disposed in the housing 62, and the end thereof passes through the housing 62. The end of the connecting rod 63 is elastically connected to a trigger rod 64 via a trigger spring, and a pressure sensor is disposed at the end of the trigger rod 64.

[0113] For details, see Figure 7 In the initial state, the sensor at the end of the trigger rod 64 is squeezed to the outside of the mold end, and the trigger spring is compressed, so that the pressure sensor is clamped between the trigger rod 64 and the mold; when the trigger rod 64 is separated from the mold, the trigger spring returns to a free state, causing the trigger rod 64 to move axially, the pressure of the pressure sensor returns to zero, and the rotating motor 51 starts working.

[0114] As a further solution of the present invention, the connecting rod 63 is slidably arranged with the housing 62, and an adjusting screw 65 is arranged between the connecting rod 63 and the housing 62. The adjusting screw 65 is threadedly connected with the housing 62 and rotatably arranged with the connecting rod 63. The end of the adjusting screw 65 is provided with an adjusting groove;

[0115] Specifically, rotating the adjusting screw 65 can drive the connecting rod 63 to move relative to the housing 62, thereby changing the initial positions of the trigger rod 64 and the pressure sensor, so that the adjusting screw 65 is suitable for use with molds of different thicknesses.

[0116] As a further solution of the present invention, a collection tank 271 is provided at the opening side of the spray hood 27, and a hose is fixedly connected to the collection tank 271;

[0117] Specifically, the collecting tank 271 can collect the glue on the spray hood 27 and guide it into the container through the hose, so as to prevent the intercepted glue from dripping, causing the gel coat to appear granular, thus affecting the appearance and quality of the gel coat.

Claims

1. A spraying gel coat device for treating the surface of a wind turbine nacelle, comprising a base (1), on which a spraying structure (2) is mounted, characterized in that: A driving mechanism (4) for driving the spraying structure (2) to move horizontally is installed on the base (1), and a rotating mechanism (5) for adjusting the tilt angle of the spraying structure (2) is installed above the driving mechanism (4); The spraying structure (2) comprises: A frame (21) is mounted on the rotating end of the rotating mechanism (5), and a guide rail (22) is mounted on the bottom of the frame (21); An adjustment frame (23) is elastically slidably arranged on the frame (21), and a limiting ring (24) is arranged at the bottom of the adjustment frame (23); The scissor frames (25) are arranged in a linear array along the length direction of the adjustment frame (23), and the adjacent ends are rotatably arranged at the same side support points. The top two end support points of the first scissor frame (25) are slidably arranged in the guide rail (22), and the bottom of the last scissor frame (25) is rotatably arranged in the limit ring (24); the scissor frame (25) at the end can be driven to move by moving the limit ring (24) to adjust the length of the scissor frame (25), and the moving distance of the scissor frame (25) from the top to the bottom center hinge point increases gradually; The nozzles (26) are in multiple relation with the number of the scissor frames (25), and are all rotatably arranged at the central hinge point of the scissor frames (25). The spacing of the nozzles (26) can be changed by adjusting the length of the scissor frames (25), thereby changing the density of the nozzles (26); A spray hood (27) is slidably disposed at the discharge end of the nozzle (26) and is used to control the spraying range of the nozzle (26); A gate (28) is rotatably disposed at the feeding end of the nozzle (26) and is used to control the amount of glue fed from the nozzle (26); The regulating mechanism (3) is used to drive the spray hood (27) to move along the axial direction of the nozzle (26) to adjust the spray range of the nozzle (26), and the movement distance of the spray hood (27) increases from top to bottom, and the spray range adjusted by the nozzle (26) increases from top to bottom; it is also used to drive the gate plate (28) to rotate, change the overlap between the gate plate (28) and the feeding end of the nozzle (26), and adjust the glue feeding amount of the nozzle (26), and the feeding amount adjusted by the nozzle (26) increases from top to bottom.

2. The spraying gel coat equipment for surface treatment of wind turbine nacelle cover according to claim 1 is characterized by: The number of the regulating mechanisms (3) is in multiple relation to the number of the nozzles (26); a triggering member (31) is installed at the bottom of the guide rail (22); the triggering member (31) is used to trigger the operation of adjacent regulating mechanisms (3); the regulating mechanisms (3) are triggered sequentially from top to bottom; each regulating mechanism (3) comprises: An incomplete gear (32) is fixed to the gate plate (28), and its rotation point coincides with the rotation point of the gate plate (28). The diameter of the incomplete gear (32) decreases from top to bottom, so that the deflection angle of the gate plate (28) increases from top to bottom. A driving gear (33) meshes with the incomplete gear (32) and is provided with a rotating shaft (34) for coaxial rotation. The rotating shaft (34) is fixed to the nozzle (26) via a connecting member. The first driving gear (33) meshes with the trigger member (31); An adjusting rack (35) is fixed to the rotating shaft (34), and the bottom of the adjusting rack is meshed with a driving gear (33) in an adjacent driving mechanism (4) below; The pitch-adjusting gear (36) is fixedly mounted on the incomplete gear (32) and the rotation point coincides with that of the incomplete gear (32); The pitch adjusting screw (37) is coaxially fixed with the pitch adjusting gear (36) and is threadedly connected with the spray hood (27).

3. The spraying gel coat equipment for surface treatment of wind turbine nacelle cover according to claim 2 is characterized by: Each of the adjustment racks (35) is provided with a connection groove (351) and a connection key (352) on both sides, and adjacent adjustment racks (35) are slidably connected via the connection groove (351) and the connection key (352), thereby enhancing the stability of the adjustment racks (35).

4. The spraying gel coat equipment for surface treatment of wind turbine nacelle cover according to claim 1 is characterized by: The driving mechanism (4) comprises: A driving motor (41) is slidably arranged on the base (1) via a slider, and a driven gear (42) is mounted on the output shaft; The driving rack (43) is fixedly mounted on the base (1) and meshes with the driven gear (42).

5. The spraying gel coat equipment for surface treatment of wind turbine nacelle cover according to claim 1, characterized in that: The base (1) comprises A plurality of crossbars (11) connected end to end; A connecting piece (12) is used to connect adjacent cross bars (11), wherein the connecting piece (12) and the cross bar (11) are connected via bolts; The plug (13) is plugged into the end of the cross bar (11) and connected to the cross bar (11) via bolts.

6. The spraying gel coat equipment for surface treatment of wind turbine nacelle cover according to claim 4, characterized in that: The rotating mechanism (5) comprises A rotating motor (51), wherein an output shaft of the rotating motor (51) is fixedly mounted on the frame (21) and is used to adjust the angle of the frame (21); The telescopic rod (52) is disposed between the rotating motor (51) and the driving motor (41) and is used to adjust the height of the rotating motor (51) and the frame (21) and to change the initial position of the nozzle (26).

7. The spraying gel coat equipment for surface treatment of wind turbine nacelle cover according to claim 6, characterized in that: A trigger mechanism (6) for triggering the rotation of the rotary motor (51) is installed at the telescopic end of the telescopic rod (52), and the trigger mechanism (6) comprises: A sliding sleeve (61) is slidably arranged with the telescopic end of the telescopic rod (52) and can be positioned by a bolt, and a protrusion (611) is arranged at the end thereof; The outer shell (62) is rotatably arranged with the sliding sleeve (61), and a groove (621) is arranged at an end adjacent to the sliding sleeve (61). When the groove (621) and the protrusion (611) overlap, the outer shell (62) can be positioned; The connecting rod (63) is arranged in the housing (62), and the end thereof passes through the housing (62). The end of the connecting rod (63) is elastically connected to the trigger rod (64) via a trigger spring, and the end of the trigger rod (64) is provided with a pressure sensor.

8. The spraying gel coat equipment for surface treatment of wind turbine nacelle cover according to claim 7, characterized in that: The connecting rod (63) is slidably arranged with the outer shell (62), and an adjusting screw (65) is arranged between the connecting rod (63) and the outer shell (62). The adjusting screw (65) is threadedly connected with the outer shell (62) and is rotatably arranged with the connecting rod (63). An adjusting groove is arranged at the end of the adjusting screw (65).

9. The spraying gel coat equipment for surface treatment of wind turbine nacelle cover according to claim 1, characterized in that: A collecting groove (271) is provided on the opening side of the spray hood (27), and a hose is fixedly connected to the collecting groove (271).

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