A tower flange zinc spraying equipment

Abstract

The present invention relates to a tower flange zinc spraying device and a method for calculating the zinc wire feed rate thereof, belonging to the field of surface spraying technology. The zinc spraying device includes a trolley body, a power distribution cabinet and a gantry are provided on the trolley body, a lift plate is installed in the gantry, a spraying arm is fixedly provided on the lift plate, an inner wall spraying mechanism, an outer cylindrical surface spraying mechanism, and an end surface spraying mechanism are installed on the spraying arm, and each spraying mechanism includes an arc spray gun. The arc spray gun of the inner wall spraying mechanism is tilted, with the lower end being close to the end of the trolley body, the arc spray gun of the outer cylindrical surface spraying mechanism is vertically arranged, and the arc spray gun of the end surface spraying mechanism is horizontally arranged. The present invention can be used to spray zinc on three surfaces of the tower flange at one time, greatly improving the spraying efficiency, saving time and effort, saving costs, and reducing the damage to the human body caused by the zinc spraying process. The method for calculating the zinc wire feed rate calculates the zinc wire feed rate that can ensure the anti-corrosion performance of the zinc spraying according to various parameters of the flange and the zinc wire.

Description

Technical Field

[0001] The invention relates to tower flange zinc spraying equipment, belonging to the technical field of surface spraying. Background Art

[0002] During the tower's in-house manufacturing process, the entire structure undergoes corrosion protection, while the connecting flanges at each end undergo thermal zinc spraying. This not only protects against corrosion but also conducts lightning from the top of the tower. The flange surface coating quality is subject to certain requirements, including thickness and uniformity, and the spraying method will impact this quality.

[0003] When zinc is sprayed on the surface of the existing tower flange, a manual handheld spray gun is generally used to spray the flange surface. This spraying method has an unsatisfactory effect on the tower flange surface and a relatively low spraying efficiency. It is not convenient for the tower to be quickly sprayed and transferred to the next process. In addition, when the manual handheld spray gun is used for zinc spraying, the atomized zinc liquid cannot be fully attached to the surface of the tower flange, and a part of it will be scattered in the workshop environment, causing harm to the health of the workers.

[0004] The Chinese utility model patent with application number CN202222486832.1 discloses an automatic hot zinc spraying device for a wind turbine tower flange, comprising a liftable mobile work frame, a work box, a robotic arm, a drive assembly, and a zinc spraying assembly for hot zinc spraying. The work box is arranged on the mobile work frame, and a rectangular hole is provided on the front side of the work box for the robotic arm to swing horizontally left and right. The interior of the work box is provided with a drive assembly connected to the robotic arm and capable of driving the robotic arm to swing horizontally left and right. The end of the robotic arm away from the drive assembly extends out of the rectangular hole and is connected to the zinc spraying assembly. The top surface of the work box is provided with a zinc wire bracket for guiding and supporting the zinc wire used for zinc spraying. It can replace the traditional manual handheld spray gun for hot zinc spraying operation. The driving component is used to control the mechanical arm connected to the zinc spraying component. The mechanical arm can be used to swing horizontally left and right to drive the zinc spraying component to move back and forth for spraying operation. However, it can only spray the flange end face at a time. In actual conditions, the flange end face, outer cylindrical surface and inner wall surface need to be sprayed, which cannot meet the spraying requirements. The outer cylindrical surface and inner wall surface still need to be manually sprayed with zinc. Summary of the Invention

[0005] The purpose of the present invention is to provide a tower flange zinc spraying equipment to address the above-mentioned technical problems of low zinc spraying efficiency, high labor intensity and difficulty in controlling the zinc wire feeding speed.

[0006] The present invention is achieved through the following technical solutions:

[0007] That is, a tower flange zinc spraying equipment, including a trolley body, a power distribution cabinet and a gantry are provided on the trolley body, a lifting plate is installed in the gantry, a lifting motor is provided at the top of the gantry, the lifting motor drives the lifting plate to move up and down through a screw, a spraying arm is fixed on the lifting plate, and the spraying arm is equipped with an inner wall spraying mechanism for spraying the inner wall of the flange, an outer cylindrical surface spraying mechanism for spraying the outer cylindrical surface of the flange, and an end face spraying mechanism for spraying the end face of the flange;

[0008] Each spraying mechanism includes an arc spray gun. The arc spray gun of the inner wall spraying mechanism is tilted, with the lower end being the end close to the trolley body. The arc spray gun of the outer cylindrical surface spraying mechanism is vertically set, and the arc spray gun of the end surface spraying mechanism is horizontally set.

[0009] The present invention is placed in a designated position by pushing the trolley body, and the tower barrel with a flange at the end to be zinc-sprayed is placed on a roller frame. The lifting motor controls the height of the lifting plate through a screw-nut pair, and the inner wall spraying mechanism, the outer cylindrical surface spraying mechanism, and the end surface spraying mechanism are close to the flange. The inner wall spraying mechanism is used to spray the inner wall surface of the flange, the outer cylindrical surface spraying mechanism is used to spray the outer cylindrical surface of the flange, and the end surface spraying mechanism is used to spray the end surface of the flange. The present invention can spray zinc on three surfaces of the tower barrel flange at one time, greatly improving the spraying efficiency, saving time, labor, and cost, and reducing the damage to the human body during the zinc spraying process.

[0010] A further improvement of the present invention is that the inner wall spraying mechanism, the outer cylindrical surface spraying mechanism and the end surface spraying mechanism are all provided with an electric slide;

[0011] The arc spray guns for the inner wall spraying mechanism and the end surface spraying mechanism are vertically raised and lowered by their respective electric slides, while the arc spray guns for the outer cylindrical surface spraying mechanism are horizontally moved by an electric slide. Each arc spray gun can be controlled by its own electric slide to move in a specific direction, achieving reciprocating spraying on each surface to accommodate tower flanges of different sizes and models. This system features a high degree of automation, increasing production and efficiency.

[0012] A further improvement of the present invention is that a support arm is fixedly mounted on the lifting platform, with a support mechanism mounted at the end of the support arm. The support mechanism includes a support plate, on which four clamping rollers are mounted. The four clamping rollers of the support mechanism clamp the two end surfaces of the outer flange of the tower flange. During the zinc spraying process, the roller frame used to hold the sleeve drives the tower to rotate, and the clamping rollers clamp the flange, acting as a limiter to ensure the quality and accuracy of the zinc spraying on the flange.

[0013] A further improvement of the present invention is that two of the four clamping rollers are fixedly mounted on the support plate, and the other two clamping rollers are movable along the strip holes provided in the support plate. The distance between the four clamping rollers is adjustable, so as to adapt to different thicknesses of the fabric and ensure the limiting effect.

[0014] A further improvement of the present invention is that the two movable clamping rollers are mounted together on a channel steel. The channel steel is bolted through a strip hole to the lower end of the support plate. A support block is fixed to the lower end surface of the support plate. Two guide rods are provided through the support block. The ends of the two guide rods are fixedly connected to the channel steel. The two movable clamping rollers move together with the channel steel. The clamping rollers are locked by tightening the two bolts, which is convenient and quick to operate.

[0015] A further improvement of the present invention is that the end face spraying mechanism includes a third electric slide mounted vertically on a spray arm, a third spray gun holder slidably mounted on the third electric slide, a horizontally arranged slide support mounted on the third spray gun holder, two slide rods mounted between the inner side surfaces of the slide support, a slide seat slidably mounted on the two slide rods, and a manual locking handle for locking the slide seat on the slide rods. The slide seat is fixedly mounted on the slide seat. The arc spray gun is moved horizontally in the opposite direction, and the horizontal position of the arc spray gun is adjusted according to the specific thickness of the tower flange to ensure the quality of the end face zinc spraying.

[0016] A further improvement of the present invention is that the inner wall spraying mechanism, the outer cylindrical surface spraying mechanism and the end surface spraying mechanism are all mounted on the spraying arm via a mounting plate.

[0017] The present invention also provides a method for calculating the zinc wire feed rate of a tower flange zinc spraying device, comprising the following steps:

[0018] S1: Calculate the flange area S1=πdb;

[0019] S2: zinc layer thickness h = mZn / (7.14×S1);

[0020] S3: zinc wire length LZn=mZn / 7.14×1000 / SZn;

[0021] S4: total running time t=LZn / 2÷foriginal;

[0022] S5: number of times n = dπ / S guns;

[0023] S6: Length of zinc wire each time: L1=LZn / n;

[0024] S7: Single running time t(n (n=1,2,3...))=t / n;

[0025] S8: original speed v original = 2b / tn×n1;

[0026] S9: Maximum time: tm=MAX(t1,t2,t3);

[0027] S10: Calculated running speed v meter = 2b / tm×n1;

[0028] S11: Zinc wire feed amount f meter = v meter / v original × f original;

[0029] Where, d is the diameter of the flange; b is the width of the flange; mZn is the total weight of the zinc wire; SZn is the cross-sectional area of ​​the zinc wire; foriginal is the original feed amount of the zinc wire; n1 is the number of reciprocating times.

[0030] According to the various parameters of the flange and zinc wire, the zinc wire feed rate that can ensure the anti-corrosion performance of zinc spraying is calculated.

[0031] Compared with the prior art, the present invention has the following beneficial effects:

[0032] 1. The zinc spraying equipment is placed in a designated position by pushing the trolley body. The tower drum with a flange at the end to be zinc sprayed is placed on a roller frame. The lifting motor controls the height of the lifting plate through a screw nut pair. The inner wall spraying mechanism, the outer cylindrical surface spraying mechanism, and the end surface spraying mechanism are close to the flange. The inner wall spraying mechanism is used to spray the inner wall surface of the flange, the outer cylindrical surface spraying mechanism is used to spray the outer cylindrical surface of the flange, and the end surface spraying mechanism is used to spray the end surface of the flange. The present invention can spray zinc on three surfaces of the tower drum flange at one time, greatly improving the spraying efficiency, saving time, labor, and cost, and reducing the damage to the human body during the zinc spraying process.

[0033] 2. According to the various parameters of the flange and zinc wire, calculate the zinc wire feed rate that can ensure the anti-corrosion performance of zinc spraying. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solution of the present invention, the following is a brief introduction to the drawings required for the description. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0035] Figure 1 It is a structural schematic diagram of a first perspective of a specific embodiment of the present invention.

[0036] Figure 2 It is a structural schematic diagram of a second viewing angle of a specific embodiment of the present invention.

[0037] Figure 3 It is a structural diagram of a specific embodiment of the present invention (hidden shell, folding plate).

[0038] Figure 4 It is a structural schematic diagram of the zinc spraying actuator from the first perspective according to a specific embodiment of the present invention.

[0039] Figure 5 It is a structural schematic diagram of the zinc spraying actuator from a second perspective according to a specific embodiment of the present invention.

[0040] Figure 6 It is a structural schematic diagram of the zinc spraying actuator from the third perspective according to a specific embodiment of the present invention.

[0041] Figure 7 yes Figure 6 Schematic diagram of the locally enlarged structure at point A in the middle.

[0042] Figure: 1. Trolley body; 2. Power distribution cabinet; 3. Housing; 4. Zinc spraying actuator; 5. Folding plate; 6. Gantry; 7. Lifting plate; 8. Lead screw; 9. Lifting motor; 10. Spraying arm; 11. Support mechanism; 12. Support plate; 13. Strip hole; 14. Channel steel; 15. Clamping roller; 16. Support block; 17. Guide rod; 18. Inner wall spraying mechanism; 19. Spray gun holder three; 20. Electric slide one; 21. Spray gun holder one 22. Arc spray gun 1; 23. Drive motor 1; 24. Outer cylindrical surface spraying mechanism; 26. Electric slide 2; 27. Drive motor 2; 28. Spray gun holder 2; 29. ​​Arc spray gun 2; 30. End surface spraying mechanism; 31. Slide support; 32. Slide rod; 33. Electric slide 3; 34. Drive motor 3; 35. Manual adjustment translation slide; 36. Arc spray gun 3; 37. Support arm; 38. Slide; 39. Manual locking handle. DETAILED DESCRIPTION

[0043] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0044] like Figures 1 to 7 The tower flange zinc spraying equipment shown includes a trolley body 1, on which a power distribution cabinet 2 and a gantry 6 are provided. A lift plate 7 that can be raised and lowered is installed in the gantry 6. A trapezoidal lead screw nut is provided at the center of the lift plate 7. A lead screw fixing plate is installed above the gantry 6. A lift motor 9 is provided at the top of the gantry 6. A lead screw 8 is installed on the lift motor 9. The lead screw 8 passes through the lead screw fixing plate and the trapezoidal lead screw nut. The lift motor 9 drives the lift plate 7 to move up and down through the lead screw nut pair. A zinc spraying actuator 4 is fixed on the lift plate 7. The zinc spraying actuator 4 includes a spraying arm 10. The spraying arm 10 is equipped with an inner wall spraying mechanism 18 for spraying the inner wall of the flange, an outer cylindrical surface spraying mechanism 24 for spraying the outer cylindrical surface of the flange, and an end face spraying mechanism 30 for spraying the end face of the flange.

[0045] Each spraying mechanism includes an arc spray gun. The arc spray gun of the inner wall spraying mechanism 18 is tilted, with the lower end being the end close to the trolley body 1. The arc spray gun of the outer cylindrical surface spraying mechanism 24 is vertically arranged, and the arc spray gun of the end surface spraying mechanism 30 is horizontally arranged.

[0046] The present invention is placed in a designated position by pushing the trolley body 1, the tower drum with a flange at the end to be zinc-sprayed is placed on the roller frame, the lifting motor 9 controls the height of the lifting plate 7 through the screw-nut pair, the inner wall spraying mechanism 18, the outer cylindrical surface spraying mechanism 24, and the end surface spraying mechanism 30 are close to the flange, the inner wall spraying mechanism 18 is used to spray the inner wall surface of the flange, the outer cylindrical surface spraying mechanism 24 is used to spray the outer cylindrical surface of the flange, and the end surface spraying mechanism 30 is used to spray the end surface of the flange. The present invention can be used to spray zinc on three surfaces of the tower drum flange at one time, greatly improving the spraying efficiency, saving time and effort, saving costs, and reducing the damage to the human body during the zinc spraying process.

[0047] Among them, the inner wall spraying mechanism 18, the outer cylindrical surface spraying mechanism 24, and the end surface spraying mechanism 30 are all mounted on the spraying arm 10 through a mounting plate, and the inner wall spraying mechanism 18, the outer cylindrical surface spraying mechanism 24, and the end surface spraying mechanism 30 are all provided with an electric slide;

[0048] The arc spray guns of the inner wall spraying mechanism 18 and the end surface spraying mechanism 30 are vertically raised and lowered by respective electric slides, while the arc spray guns of the outer cylindrical surface spraying mechanism 24 are horizontally moved by an electric slide. Each arc spray gun can be controlled by its own electric slide in a specific direction, achieving reciprocating spraying of each surface, adapting to tower flanges of varying sizes and models. This system features a high degree of automation, increasing production and efficiency.

[0049] Among them, a support arm 37 is fixedly provided on the lifting plate 7, and a support mechanism 11 is installed at the end of the support arm 37. The support mechanism 11 includes a support plate 12, and four clamping rollers 15 and a transverse roller are installed on the support plate 12. The four clamping rollers 15 of the support mechanism 11 clamp the two end faces of the outer convex edge of the tower flange. The transverse rollers are in contact with the inner ring surface of the flange, playing a positioning role in height adjustment. During the zinc spraying process, the roller frame used to place the sleeve drives the tower to rotate, and the clamping rollers 15 clamp the flange, playing a limiting role to ensure the quality and accuracy of the flange zinc spraying. Two of the four clamping rollers 15 are fixedly installed on the support plate 12, and the other two clamping rollers 15 can move along the strip holes 13 opened on the support plate 12. The distance between the four clamping rollers 15 is adjustable to adapt to different thicknesses of steel and ensure the limiting effect.

[0050] The two movable clamping rollers 15 are mounted together on a channel steel 14. The channel steel 14 is bolted through strip holes 13 to the lower end of the support plate 12. A support block 16 is fixed to the lower end surface of the support plate 12. Two guide rods 17 are provided through the support block 16. The ends of the two guide rods 17 are fixedly connected to the channel steel 14. The two movable clamping rollers 15 move together with the channel steel 14. The clamping rollers 15 can be locked by tightening the two bolts, which is convenient and quick to operate.

[0051] The end-face spraying mechanism 30 includes a third electric slide 33 vertically mounted on the spray arm 10. A third spray gun holder 19 is slidably mounted on the third electric slide 33. A horizontally arranged slide support 31 is mounted on the third spray gun holder 19. Two slide rods 32 are mounted between the inner sides of the slide support 31. A slide 38 is slidably mounted on the two slide rods 32. The slide 38 is equipped with a manual locking handle 39 for locking the slide 38 on the slide rods 32. An arc spray gun 36 is fixedly mounted on the slide 38. This allows the arc spray gun 36 to move horizontally in opposite directions. The horizontal position of the arc spray gun 36 is adjusted according to the specific thickness of the tower flange to ensure the quality of the end-face zinc spraying.

[0052] Among them, the door frame 6 is covered with a shell 3, and two folding plates 5 are provided on the side of the shell 3 close to the spraying mechanism. The two folding plates 5 are connected by a plate, and the spraying arm 10 and the support arm 37 are set inside the shell 3 through the plate.

[0053] The inner wall spraying mechanism 18 includes an electric slide 20, a spray gun holder 21, an arc spray gun 22 and a drive motor 23;

[0054] The outer cylindrical surface spraying mechanism 24 includes an electric slide 26, a spray gun holder 28, an arc spray gun 29 and a drive motor 27;

[0055] The end face spraying mechanism 30 includes an electric slide 33, a manually adjustable translation slide 35, a drive motor 34, an arc spray gun 36 and a spray gun holder 3 19.

[0056] The present invention also provides a method for calculating the zinc wire feed rate of a tower flange zinc spraying device, comprising the following steps:

[0057] S1: Calculate the flange area S1=πdb;

[0058] S2: zinc layer thickness h = mZn / (7.14×S1);

[0059] S3: zinc wire length LZn=mZn / 7.14×1000 / SZn;

[0060] S4: total running time t=LZn / 2÷foriginal;

[0061] S5: number of times n = dπ / S guns;

[0062] S6: Length of zinc wire each time: L1=LZn / n;

[0063] S7: Single running time t(n (n=1,2,3...))=t / n;

[0064] S8: original speed v original = 2b / tn×n1;

[0065] S9: Maximum time: tm=MAX(t1,t2,t3);

[0066] S10: Calculated running speed v meter = 2b / tm×n1;

[0067] S11: Zinc wire feed amount f meter = v meter / v original × f original;

[0068] Where, d is the diameter of the flange; b is the width of the flange; mZn is the total weight of the zinc wire; SZn is the cross-sectional area of ​​the zinc wire; foriginal is the original feed amount of the zinc wire; n1 is the number of reciprocating times.

[0069] According to the various parameters of the flange and zinc wire, the zinc wire feed rate that can ensure the anti-corrosion performance of zinc spraying is calculated.

[0070] Working principle:

[0071] The zinc spraying equipment is placed in a designated position by pushing the trolley body. The tower drum with a flange at the end to be zinc sprayed is placed on a roller frame. The lifting motor controls the height of the lifting plate through a screw-nut pair. The inner wall spraying mechanism, the outer cylindrical surface spraying mechanism, and the end surface spraying mechanism are close to the flange. The inner wall spraying mechanism is used to spray the inner wall surface of the flange, the outer cylindrical surface spraying mechanism is used to spray the outer cylindrical surface of the flange, and the end surface spraying mechanism is used to spray the end surface of the flange. The present invention can spray zinc on three surfaces of the tower drum flange at one time, greatly improving the spraying efficiency, saving time, labor, and cost, and reducing the damage to the human body during the zinc spraying process.

[0072] The various embodiments in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. The same and similar parts between the various embodiments can be referenced to each other.

[0073] The terms "upper," "lower," "outer," "inner," and the like, if used in the present description and claims, and in the accompanying drawings, are used to distinguish relative positions and are not necessarily qualitative. It should be understood that the terms used in this manner are interchangeable where appropriate, such that the embodiments of the present invention described herein can be implemented in sequences other than those illustrated or described herein. Furthermore, the terms "including," "having," and any variations thereof, are intended to cover non-exclusive inclusions.

[0074] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A tower flange zinc spraying device, comprising a trolley body (1), characterized in that: A power distribution cabinet (2) and a gantry (6) are provided on the trolley body (1). A lifting plate (7) that can be raised and lowered is installed in the gantry (6). A lifting motor (9) is provided at the top of the gantry (6). The lifting motor (9) drives the lifting plate (7) to rise and fall through a lead screw (8). A spraying arm (10) is fixed on the lifting plate (7). The spraying arm (10) is provided with an inner wall spraying mechanism (18) for spraying the inner wall of the flange, an outer cylindrical surface spraying mechanism (24) for spraying the outer cylindrical surface of the flange, and an end surface spraying mechanism (30) for spraying the end surface of the flange. Each spraying mechanism includes an arc spray gun, the arc spray gun of the inner wall spraying mechanism (18) is tilted, with the lower end being the end close to the trolley body (1), the arc spray gun of the outer cylindrical surface spraying mechanism (24) is vertically arranged, and the arc spray gun of the end surface spraying mechanism (30) is horizontally arranged; The inner wall spraying mechanism (18), the outer cylindrical surface spraying mechanism (24) and the end surface spraying mechanism (30) are all provided with an electric slide. The arc spray guns of the inner wall spraying mechanism (18) and the end surface spraying mechanism (30) are controlled to move vertically by respective electric slides, and the arc spray guns of the outer cylindrical surface spraying mechanism (24) are controlled to move horizontally by the electric slide. A support arm (37) is fixedly provided on the lifting plate (7), a support mechanism (11) is installed at the end of the support arm (37), the support mechanism (11) includes a support plate (12), and four clamping rollers (15) are installed on the support plate (12); Two of the four clamping rollers (15) are fixedly mounted on the support plate (12), and the other two clamping rollers (15) are movable along strip-shaped holes (13) provided on the support plate (12); Two movable clamping rollers (15) are mounted together on a channel steel (14). The channel steel (14) is mounted on the lower end of the support plate (12) by means of bolts passing through the strip holes (13). A support block (16) is fixedly provided on the lower end surface of the support plate (12). Two guide rods (17) are provided through the support block (16). The ends of the two guide rods (17) are fixedly connected to the channel steel (14).

2. The tower flange zinc spraying equipment according to claim 1, characterized in that: The end face spraying mechanism (30) includes an electric slide three (33) vertically mounted on the spray arm (10), a spray gun seat three (19) is slidably mounted on the electric slide three (33), a horizontally arranged slide support (31) is mounted on the spray gun seat three (19), two slide rods (32) are mounted between the two inner side surfaces of the slide support (31), a slide (38) is slidably mounted on the two slide rods (32), a manual locking handle (39) for locking the slide (38) on the slide rod (32) is mounted on the slide (38), and an arc spray gun three (36) is fixedly mounted on the slide (38).

3. The tower flange zinc spraying equipment according to claim 1, characterized in that: The inner wall spraying mechanism (18), the outer cylindrical surface spraying mechanism (24), and the end surface spraying mechanism (30) are all mounted on the spraying arm via a mounting plate.

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