Large tower drum surface roll coating device

By using a thermal oil circulation device to heat up the roller rod in the large tower surface roller coating device, the problem of low primer temperature affecting the adhesion and fluidity of the coating is solved, and high-quality coating effect is achieved.

CN119500466AInactive Publication Date: 2025-02-25ANHUI DABILI NEW ENERGY TECH CO LTD
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Patent Information

Application Number
CN202411973121.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-30
Publication Date
2025-02-25
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

During the coating process of large towers, too low primer temperature will affect the adhesion and fluidity of the coating, resulting in poor coating effect.

Method used

A large-scale tower surface roller coating device is designed, and the thermal oil circulation device is used to heat up the roller coating rod, thereby improving the adhesion and fluidity of the coating. The device includes a coaxial support assembly in the inner wall of the tower, a walking mechanism and a roller coating assembly, which flows inside the roller coating rod through a thermally conductive oil circulation to ensure a uniform temperature increase.

Benefits of technology

Through the heating of the roller-coating rod, the adhesion and fluidity of the paint are significantly improved, ensuring high-quality coating effect on the surface of large towers.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of large tower drum brush coating, in particular to a large tower drum surface roll coating device which comprises a tower drum inner wall coaxial supporting assembly used for supporting a tower drum and a walking mechanism located above the tower drum, the walking mechanism is provided with a roll coating assembly, the roll coating assembly comprises a roll coating roller, the roll coating roller is hollow, and the inner wall of the roll coating roller is provided with a roll coating groove. And the roller coating roller is communicated with a heat-conducting oil circulating device. According to the device, the tower drum is supported in the state that the axis is horizontal through the tower drum inner wall coaxial supporting assembly, the tower drum is made to rotate, the roller coating roller conducts rolling coating on the outer circumference of the tower drum, then the roller coating assembly is driven by the walking mechanism to move in the axis direction of the tower drum, and coating of the whole tower drum is completed; the heated heat-conducting oil circularly flows in the roller coating roller through the heat-conducting oil circulating device, so that the temperature of the roller coating roller is increased, and the adhesive force and the flowability of the coating are improved through the temperature rise of the roller coating roller.
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Description

Technical Field

[0001] The invention relates to the technical field of large tower barrel brush coating, in particular to a large tower barrel surface roller coating device. Background Art

[0002] The inner diameter of the wind turbine tower is several meters or even more than ten meters, and the length can reach tens of meters or even hundreds of meters. It is generally composed of multiple unit sections. The main purpose of applying primer on the surface of the wind turbine tower is to provide anti-corrosion protection. The primer usually uses epoxy zinc-rich primer or low surface treatment epoxy resin paint. These materials can not only provide good anti-corrosion effect on the tower surface, but also provide cathodic protection and enhance the durability of the tower. The primer also has a good shielding effect, which can effectively seal the substrate and protect the substrate from external erosion. At the same time, it also has a certain tolerance for low substrate surface treatment. In addition, the primer can also enhance the bonding strength with subsequent coatings to ensure the stability and durability of the entire coating system.

[0003] There are generally two ways to apply primer, one is spraying and the other is rolling. Each method has its own advantages and disadvantages. The factory will choose different coating methods according to the needs.

[0004] For roller coating, when applying primer, if the primer temperature is too low, it will affect the adhesion and fluidity of the coating. Summary of the invention

[0005] The purpose of the present invention is to solve the problems pointed out in the background technology and to propose a large tower surface roller coating device.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A large tower surface roller coating device comprises a tower inner wall coaxial support assembly for supporting the tower, a traveling mechanism located above the tower, the traveling mechanism is equipped with a roller coating assembly, the roller coating assembly comprises a roller coating rod, the roller coating rod is hollow inside, and the roller coating rod is connected to a heat transfer oil circulation device.

[0008] The heat transfer oil circulation device includes a hot liquid circulation device, and the roller coating roller has at least a first heating channel and a second heating channel. The first heating channel and the second heating channel are arranged in parallel, and the liquid flows therebetween are opposite. One of the first heating channel and the second heating channel is connected to the liquid inlet end of the hot liquid circulation device, and the other one is connected to the liquid discharge end of the hot liquid circulation device.

[0009] The coating roller comprises an outer cylinder and an inner cylinder arranged coaxially, the inner cylinder has the second heating channel inside, the inner cylinder has the first heating channel between the inner cylinder and the outer cylinder, a connecting hole is opened at one end of the inner cylinder, and the first heating channel and the second heating channel are connected through the connecting hole.

[0010] The coating roller includes an adapter and a support shaft respectively located at both ends of the outer cylinder, the adapter is rotatably connected to the same end of the outer cylinder and the inner cylinder, the adapter has a first flow channel and a second flow channel, one end of the first flow channel is connected to the first heating channel, one end of the second flow channel is connected to the second heating channel, one of the first flow channel and the second flow channel is connected to the liquid inlet end of the hot liquid circulation equipment, and the other one of the first flow channel and the second flow channel is connected to the liquid discharge end of the hot liquid circulation equipment.

[0011] The adapter includes an annular cylinder and a supporting portion that are relatively arranged. The annular cylinder is placed between an outer cylinder and an inner cylinder. A first sealing bearing is provided between the outer circumferential wall of the annular cylinder and the outer cylinder, and a second sealing bearing is provided between the inner circumferential wall of the annular cylinder and the inner cylinder. The supporting portion is rotatably connected to the tower, and the supporting portion is provided with a first joint and a second joint. The first joint is connected to a first flow channel, and the second joint is connected to a second flow channel. One of the first joint and the second joint is connected to a liquid inlet end of a hot liquid circulation device, and the other of the first joint and the second joint is connected to a liquid discharge end of the hot liquid circulation device.

[0012] The hot liquid circulation equipment includes a first connecting pipe, a second connecting pipe, a circulation pump, and a heating oil tank. The discharge end of the circulation pump is connected to the heating oil tank, the discharge end of the heating oil tank is connected to the second joint through the second connecting pipe, and the liquid inlet end of the circulation pump is connected to the first joint through the first connecting pipe.

[0013] The adapter is provided with a process hole, the first flow channel is Z-shaped, the process hole is located in the vertical channel portion of the Z-shape, and the process hole is sealed by a sealing plug.

[0014] The walking mechanism includes a support frame and a threaded rod arranged along the length direction of the tower, the threaded rod is rotatably connected to the support frame, one end of the threaded rod is transmission-connected to a rotating motor, the support frame is connected to a power lifting member that can move up and down, the threaded rod is threadedly connected to a support seat, and the roller coating assembly is installed under the support seat.

[0015] The threaded rod is tilted, and the tilt angle of the threaded rod is equal to the taper of the tower; a guide rail is installed between the support seat and the support frame.

[0016] The roller coating assembly comprises a paint storage box, which is fixed at the bottom of a support seat, and the roller coating roller is rotatably connected to the bottom of the paint storage box. The paint storage box is provided with a liquid leakage slit which can leak liquid to the roller coating roller.

[0017] The present invention proposes a large-scale tower surface roller coating device, which has the beneficial effects of supporting the tower in a horizontal axis state through a coaxial support assembly on the inner wall of the tower, so that the tower can rotate, and a coating roller rolls and brushes on the outer circumference of the tower, and then drives the coating roller assembly to move along the axis of the tower through a walking mechanism to complete the coating of the entire tower. When the temperature is low, the heated heat transfer oil is circulated inside the coating roller through a heat transfer oil circulation device to heat the coating roller, thereby improving the adhesion and fluidity of the coating through the heating of the coating roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 It is a schematic cross-sectional structure diagram of a coating roller of the present invention;

[0020] Figure 3 The structure of the adapter of the present invention is shown in FIG. Figure 1 ;

[0021] Figure 4 The structure of the adapter of the present invention is shown in FIG. Figure 2 ;

[0022] Figure 5 It is a schematic diagram of the connection structure between the hot liquid circulation equipment and the coating roller of the present invention.

[0023] In the figure: tower 1, roller coating roller 2, adapter 3, first joint 4, second joint 5, first connecting pipe 6, second connecting pipe 7, circulating pump 8, heating oil tank 9, outer cylinder 10, inner cylinder 11, first heating channel 12, second heating channel 13, connecting hole 14, first sealing bearing 15, second sealing bearing 16, annular cylinder 17, sealing plug 18, support part 19, first flow channel 20, second flow channel 21, threaded rod 22, paint storage box 23, support seat 24, support frame 25, power lifting member 26, rotating motor 27, hot liquid circulation equipment 28, tower inner wall coaxial support assembly 29, support shaft 30. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0025] Reference Figure 1-Figure 5 A large tower surface roller coating device includes a tower inner wall coaxial support assembly 29 for supporting the tower 1, a walking mechanism located above the tower 1, the walking mechanism is equipped with a roller coating assembly, the roller coating assembly includes a roller coating rod 2, the roller coating rod 2 is hollow inside, and the roller coating rod 2 is connected to a heat transfer oil circulation device.

[0026] refer to Figure 1 The device supports the tower 1 in a horizontal axis state through the coaxial support assembly 29 on the inner wall of the tower, so that the tower 1 rotates, and the roller coating roller 2 rolls and brushes on the outer circumference of the tower 1, and then drives the roller coating assembly to move along the axis direction of the tower 1 through the walking mechanism to complete the painting of the entire tower. When the temperature is low, the heated heat transfer oil is circulated in the roller coating roller 2 through the heat transfer oil circulation device, so that the roller coating roller 2 is heated, and the adhesion and fluidity of the coating are improved by the heating of the roller coating roller 2.

[0027] As an embodiment, the heat transfer oil circulation device includes a hot liquid circulation device 28, and the roller coating roller 2 has at least a first heating channel 12 and a second heating channel 13. The first heating channel 12 and the second heating channel 13 are arranged in parallel, and the liquid flow directions therebetween are opposite. One of the first heating channel 12 and the second heating channel 13 is connected to the liquid inlet end of the hot liquid circulation device, and the other one is connected to the liquid discharge end of the hot liquid circulation device.

[0028] The device allows the heat-conducting liquid to circulate inside the coating roller through a hot liquid circulation device, and the coating roller 2 is provided with a first heating channel 12 and a second heating channel 13. The first heating channel 12 and the second heating channel 13 are arranged in parallel, and the liquid flows therebetween in opposite directions. With this arrangement, the coating roller 2 can heat up more evenly as a whole.

[0029] refer to Figure 2 The coating roller 2 comprises an outer cylinder 10 and an inner cylinder 11 which are coaxially arranged. The inner cylinder 11 has a second heating channel 13 inside, and a first heating channel 12 is provided between the inner cylinder 11 and the outer cylinder 10. A connecting hole 14 is provided at one end of the inner cylinder 11, and the first heating channel 12 and the second heating channel 13 are connected through the connecting hole 14. The heat transfer oil flows in from one end of the second heating channel 13, and then flows into the first heating channel 12 through the connecting hole 14 at the other end, and then flows out through the end of the first heating channel 12 away from the connecting hole 14, so that the heat transfer fluid with the highest temperature flows in from the left end, and the heat transfer fluid with the lowest temperature also flows out from the left end, so that the temperatures are mutually neutralized, so that the temperature difference between the two ends of the entire outer cylinder 10 is reduced.

[0030] As an assembly method, the roller coating stick 2 includes an adapter 3 and a support shaft 30 respectively located at both ends of the outer cylinder 10. The adapter 3 is rotatably connected to the same end of the outer cylinder 10 and the inner cylinder 11. The adapter 3 has a first flow channel 20 and a second flow channel 21. One end of the first flow channel 20 is connected to the first heating channel 12, and one end of the second flow channel 21 is connected to the second heating channel 13. One of the first flow channel 20 and the second flow channel 21 is connected to the liquid inlet end of the hot liquid circulation device, and the other is connected to the liquid discharge end of the hot liquid circulation device. The second heating channel 13 and the first heating channel 12 are connected through the adapter 3, so that the outer cylinder 10 and the adapter 3 can be relatively rotated and the heat transfer oil can be normally in and out.

[0031] As a specific embodiment, the adapter 3 includes an annular cylinder 17 and a support portion 19 that are arranged opposite to each other. The annular cylinder 17 is placed between the outer cylinder 10 and the inner cylinder 11. A first sealing bearing 15 is provided between the outer peripheral wall of the annular cylinder 17 and the outer cylinder 10. A second sealing bearing 16 is provided between the inner peripheral wall of the annular cylinder 17 and the inner cylinder 11. The support portion 19 is rotatably connected to the tower 1. The support portion 19 is provided with a first joint 4 and a second joint 5. The first joint 4 is connected to the first flow channel 20, and the second joint 5 is connected to the second flow channel 21. One of the first joint 4 and the second joint 5 is connected to the liquid inlet end of the hot liquid circulation device, and the other is connected to the liquid discharge end of the hot liquid circulation device. This structure is simple, and because the heat transfer oil enters and exits from the same end of the roller coating roller, the complexity of the assembly structure is reduced.

[0032] As a circulation method, the hot liquid circulation device 28 includes a first connecting pipe 6, a second connecting pipe 7, a circulation pump 8, and a heating oil tank 9. The discharge end of the circulation pump 8 is connected to the heating oil tank 9, and the discharge end of the heating oil tank 9 is connected to the second joint 5 through the second connecting pipe 7. The liquid inlet end of the circulation pump 8 is connected to the first joint 4 through the first connecting pipe 6. The heat transfer oil is pumped out from the first joint 4 by the circulation pump 8, and then sent to the heating oil tank 9 for heating, and then sent to the second heating channel 13 from the second joint 5 to complete the circulation of the hot liquid. You can refer to Figure 2 The direction of the arrow represents the direction of liquid flow.

[0033] In order to facilitate the molding of the internal flow channel of the adapter 3, the adapter 3 is provided with a process hole. The first flow channel 20 is Z-shaped. The process hole is located in the vertical channel portion of the Z-shape. The process hole is sealed by a sealing plug 18.

[0034] As an implementation method, refer to Figure 1The walking mechanism includes a support frame 25 and a threaded rod 22 arranged along the length direction of the tower 1. The threaded rod 22 is rotatably connected to the support frame 25. One end of the threaded rod 22 is transmission-connected to a rotating motor 27. The support frame 25 is connected to a power lifting member 26 capable of moving up and down. The threaded rod 22 is threadedly connected to a support seat 24. The roller coating assembly is installed below the support seat 24. The power lifting member 26 drives the support frame 25 to rise or fall, so that the roller coating roller 2 can rise or fall, which facilitates the roller coating roller 2 to move along the axis direction of the tower. The rotating motor 27 drives the threaded rod 22 to rotate, so that the support seat 24 moves along the axis direction of the tower under the action of the thread, and the position of the roller coating roller 2 is adjusted.

[0035] As an implementation method, the threaded rod 22 is tilted, and the inclination angle of the threaded rod 22 is equal to the taper of the tower 1; a guide rail is installed between the support seat 24 and the support frame 25, and the guide rail is used to facilitate the movement of the support seat 24 along the axis of the tower. The threaded rod 22 is tilted so that the extension or shortening distance of the power lifting member 26 is the same each time, thereby reducing the difficulty of operation.

[0036] In order to conveniently fill the coating roller 2 with paint, the coating roller assembly includes a coating storage box 23, which is fixed at the bottom of the support base 24, and the coating roller 2 is rotatably connected to the bottom of the coating storage box 23. The coating storage box 23 is provided with a leakage slit that can leak liquid to the coating roller 2. The coating in the coating storage box 23 drips onto the coating roller 2 through the leakage slit.

[0037] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technical solution, conception, and design obtained by equivalent replacement or modification of the technical solution and inventive concept of the present invention by any technician familiar with the technical field within the technical scope disclosed by the present invention should be covered by the protection scope of the present invention.

Claims

1. A large tower surface roller coating device, characterized in that: The invention comprises a tower inner wall coaxial support assembly (29) for supporting a tower (1), and a walking mechanism located above the tower (1); the walking mechanism is provided with a roller coating assembly, and the roller coating assembly comprises a roller coating rod (2); the roller coating rod (2) is hollow inside, and the roller coating rod (2) is connected to a heat transfer oil circulation device.

2. A large tower surface roller coating device according to claim 1, characterized in that: The heat transfer oil circulation device comprises a hot liquid circulation device (28), the coating roller (2) has at least a first heating channel (12) and a second heating channel (13), the first heating channel (12) and the second heating channel (13) are arranged in parallel, and the liquid flows therebetween are opposite, one of the first heating channel (12) and the second heating channel (13) is connected to the liquid inlet end of the hot liquid circulation device, and the other of the first heating channel (12) and the second heating channel (13) is connected to the liquid discharge end of the hot liquid circulation device.

3. A large tower surface roller coating device according to claim 2, characterized in that: The coating roller (2) comprises an outer cylinder (10) and an inner cylinder (11) which are coaxially arranged. The inner cylinder (11) has the second heating channel (13) inside. The first heating channel (12) is provided between the inner cylinder (11) and the outer cylinder (10). A connecting hole (14) is provided at one end of the inner cylinder (11). The first heating channel (12) and the second heating channel (13) are connected via the connecting hole (14).

4. A large tower surface roller coating device according to claim 3, characterized in that: The coating roller (2) comprises an adapter (3) and a support shaft (30) respectively located at two ends of an outer cylinder (10); the adapter (3) is rotatably connected to the same end of the outer cylinder (10) and the inner cylinder (11); the adapter (3) has a first flow channel (20) and a second flow channel (21); one end of the first flow channel (20) is connected to a first heating channel (12); one end of the second flow channel (21) is connected to a second heating channel (13); one of the first flow channel (20) and the second flow channel (21) is connected to a liquid inlet end of a hot liquid circulation device, and the other of the first flow channel (20) and the second flow channel (21) is connected to a liquid discharge end of the hot liquid circulation device.

5. A large tower surface roller coating device according to claim 4, characterized in that: The adapter (3) comprises an annular cylinder (17) and a support portion (19) which are arranged opposite to each other. The annular cylinder (17) is placed between an outer cylinder (10) and an inner cylinder (11). A first sealing bearing (15) is provided between an outer peripheral wall of the annular cylinder (17) and the outer cylinder (10). A second sealing bearing (16) is provided between an inner peripheral wall of the annular cylinder (17) and the inner cylinder (11). The support portion (19) is rotatably connected to the tower (1). The support portion (19) is provided with a first joint (4) and a second joint (5). The first joint (4) is connected to a first flow channel (20), and the second joint (5) is connected to a second flow channel (21). One of the first joint (4) and the second joint (5) is connected to a liquid inlet end of a hot liquid circulation device, and the other of the first joint (4) and the second joint (5) is connected to a liquid discharge end of the hot liquid circulation device.

6. A large tower surface roller coating device according to claim 5, characterized in that: The hot liquid circulation device (28) comprises a first connecting pipe (6), a second connecting pipe (7), a circulation pump (8), and a heating oil tank (9); the discharge end of the circulation pump (8) is connected to the heating oil tank (9); the discharge end of the heating oil tank (9) is connected to the second joint (5) through the second connecting pipe (7); and the liquid inlet end of the circulation pump (8) is connected to the first joint (4) through the first connecting pipe (6).

7. A large tower surface roller coating device according to any one of claims 4 to 6, characterized in that: The adapter (3) is provided with a process hole, the first flow channel (20) is Z-shaped, the process hole is located in the vertical channel portion of the Z-shape, and the process hole is sealed by a sealing plug (18).

8. A large tower surface roller coating device according to claim 1, characterized in that: The walking mechanism comprises a support frame (25), a threaded rod (22) arranged along the length direction of the tower (1), the threaded rod (22) being rotatably connected to the support frame (25), one end of the threaded rod (22) being transmission-connected to a rotating motor (27), the support frame (25) being connected to a power lifting member (26) capable of moving up and down, the threaded rod (22) being threadedly connected to a support seat (24), and the roller coating assembly being installed below the support seat (24).

9. A large tower surface roller coating device according to claim 8, characterized in that: The threaded rod (22) is arranged to be inclined, and the inclination angle of the threaded rod (22) is equal to the taper of the tower (1); and a guide track is installed between the support seat (24) and the support frame (25).

10. A large tower surface roller coating device according to claim 8 or 9, characterized in that: The roller coating assembly comprises a paint storage box (23), the paint storage box (23) is fixed to the bottom of a support seat (24), the roller coating rod (2) is rotatably connected to the bottom of the paint storage box (23), and the paint storage box (23) is provided with a liquid leakage slit capable of leaking liquid to the roller coating rod (2).