Eccentric rotary valve corrosion-resistant coating spraying machine

Abstract

The utility model relates to rotary valve coating spraying technical field discloses an eccentric rotary valve corrosion -resistant coating spraying machinery, including bearing support, the rear end fixed connection of bearing support has the bearing cross board, the top fixed connection of bearing cross board has material storage box, the front fixed connection of material storage box has the conveying pipe, the front fixed connection of conveying pipe has the limit support. The utility model discloses through be provided with the limit cylinder drive limit roof up and down movement of mounting the clamping frame inner joint, forms adjustable pressure compensation system, when spraying head contact workpiece surface, limit roof absorbs axial impact force through the cylinder elastic deformation, ensures that spraying pressure is constant, and drive motor is through the connection clamping frame and drives limit bottom plate rotation, makes spraying head along preset track and does eccentric movement, perfect matching the special geometry of rotary valve, realizes dead angle coating coverage, improves the equipment whole to the spraying efficiency of product.

Description

Technical Field

[0001] This utility model relates to the field of rotary valve coating spraying technology, and in particular to a corrosion-resistant coating spraying machine for eccentric rotary valves. Background Technology

[0002] Rotary valve coating spraying is a process that uses thermal spraying technology to form a wear-resistant and corrosion-resistant coating on the valve surface, primarily used to improve valve performance under complex operating conditions such as high temperatures and corrosive media. Coating materials: Commonly used are high-hardness materials such as hard alloys and tungsten carbide; some applications utilize ceramic coatings. Spraying technologies: These include electrostatic spraying and fluidized bed processes, with supersonic tungsten carbide thermal spraying technology significantly improving wear resistance. Structural design: Utilizing equipment such as rotating spray cups, uniform coating is achieved through centrifugal force or high-speed airflow, ensuring a dense coating and strong adhesion to the substrate. It is mainly used in industrial applications requiring high wear and corrosion resistance, such as high-temperature flue gas treatment devices and pipelines handling corrosive media, including pulverized coal conveying systems in thermal power plants and equipment in the metallurgical industry.

[0003] An existing eccentric rotary valve corrosion-resistant coating spraying machine, when the equipment is used to process the product, tends to have a small spraying coverage area, which increases the working efficiency of the spraying equipment during the product spraying operation. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a corrosion-resistant coating spraying machine for eccentric rotary valves.

[0005] This utility model is achieved by the following technical solution: an eccentric rotary valve corrosion-resistant coating spraying machine, including a support bracket, a support cross plate fixedly connected to the rear end of the support bracket, a material storage box fixedly connected to the top of the support cross plate, a conveying pipe fixedly connected to the front of the material storage box, a limit bracket fixedly connected to the front of the conveying pipe, and a spraying head fixedly connected to the front of the limit bracket. The top of the support bracket is fixedly connected to a mounting frame, and a limit cylinder is engaged inside the mounting frame. The output end of the limit cylinder is fixedly connected to a limit top plate. The bottom of the inner wall of the support bracket is fixedly connected to a connecting frame, and a drive motor is engaged inside the connecting frame. The output end of the drive motor is fixedly connected to a limit bottom plate. A fixing frame is fixedly connected to the front of the connecting frame, and a limit ring is inserted inside the fixing frame.

[0006] The above technical solution involves storing corrosion-resistant coating materials centrally in a material storage box, with the conveying pipe connected to its front end stably delivering the coating to the front end.

[0007] As a further improvement to the above solution, the front of the material storage box is in contact with the rear surface of the support bracket, and the number of spray heads is set to two, with the two spray heads symmetrically distributed around the conveying pipe.

[0008] As a further improvement to the above solution, the limiting bracket is located inside the bearing bracket, the spray head is located inside the bearing bracket, and the bottom of the limiting cylinder is in contact with the top surface of the bearing bracket.

[0009] Through the above technical solution, the contact surface between the bottom of the limiting cylinder and the top of the support bracket provides vertical support, while the fit design between the bottom of the drive motor and the bottom of the inner wall of the support bracket enhances horizontal stability.

[0010] As a further improvement to the above solution, the limiting top plate is located on top of the limiting bottom plate, the bottom of the drive motor is in contact with the bottom surface of the inner wall of the bearing bracket, and the limiting bottom plate is located on top of the connecting frame.

[0011] Through the above technical solution, the fixed frame adopts a symmetrical layout, and the internal limiting ring can quickly lock workpieces of different specifications. When it is necessary to change the spraying parameters, the spraying radius can be changed simply by adjusting the position of the limiting ring.

[0012] As a further improvement to the above solution, the number of fixed card frames is set to two, and the two fixed card frames are symmetrically distributed on the left and right sides with the connecting card frame as the center, and the limiting ring is located at the top of the bearing bracket.

[0013] As a further improvement to the above solution, the limiting ring is located at the bottom of the limiting base plate, the fixing frame is located at the bottom of the limiting base plate, and the drive motor is located at the bottom of the limiting top plate.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention utilizes a limit cylinder mounted within a mounting frame to drive a limit top plate up and down, forming an adjustable pressure compensation system. When the spray head contacts the workpiece surface, the limit top plate absorbs axial impact force through the elastic deformation of the cylinder, ensuring constant spraying pressure. The drive motor rotates the limit bottom plate via the connecting frame, causing the spray head to move eccentrically along a preset trajectory, perfectly matching the special geometry of the rotary valve. This achieves seamless coating coverage and improves the overall spraying efficiency of the equipment.

[0015] This invention forms a balanced spraying layout by setting two spray heads symmetrically distributed around the delivery pipe. With the directional constraint of the limiting bracket, the spraying angle and coverage can be precisely controlled. This avoids the problem of uneven coating thickness caused by traditional single spray heads and improves spraying efficiency through the collaborative operation of the two spray heads. It is especially suitable for the construction of all-round protective coatings on complex curved surfaces such as eccentric rotary valves. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the rear view structure of this utility model; Figure 3 This is a schematic diagram of the structure of this utility model from below; Figure 4 This is a schematic diagram of the right-side structure of this utility model.

[0017] Explanation of key symbols: 1. Support bracket; 2. Support plate; 3. Material storage box; 4. Conveying pipe; 5. Spray head; 6. Limiting bracket; 7. Mounting frame; 8. Limiting cylinder; 9. Limiting top plate; 10. Connecting frame; 11. Drive motor; 12. Limiting bottom plate; 13. Fixing frame; 14. Limiting ring. Detailed Implementation

[0018] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments. Example:

[0019] Please combine Figure 1-4 The embodiment of the eccentric rotary valve corrosion-resistant coating spraying machine includes a support bracket 1, a support cross plate 2 fixedly connected to the rear end of the support bracket 1, a material storage box 3 fixedly connected to the top of the support cross plate 2, a conveying pipe 4 fixedly connected to the front of the material storage box 3, a limit bracket 6 fixedly connected to the front of the conveying pipe 4, and a spraying head 5 fixedly connected to the front of the limit bracket 6. A mounting frame 7 is fixedly connected to the top of the support bracket 1. A limit cylinder 8 is engaged inside the mounting frame 7. A limit top plate 9 is fixedly connected to the output end of the limit cylinder 8. A connecting frame 10 is fixedly connected to the bottom of the inner wall of the support bracket 1. A drive motor 11 is engaged inside the connecting frame 10. A limit bottom plate 12 is fixedly connected to the output end of the drive motor 11. A fixing frame 13 is fixedly connected to the front of the connecting frame 10. A limit retaining ring 14 is inserted inside the fixing frame 13. The limit cylinder 8 engaged inside the mounting frame 7 drives the limit top plate 9 to move up and down, forming an adjustable pressure compensation system. When the spray head 5 contacts the workpiece surface, the limit top plate 9 absorbs the axial impact force through the elastic deformation of the cylinder, ensuring constant spraying pressure. The drive motor 11 drives the limit bottom plate 12 to rotate through the connecting frame 10, causing the spray head 5 to move eccentrically along a preset trajectory, perfectly matching the special geometry of the rotary valve, achieving no dead angle coating coverage, and improving the overall spraying efficiency of the equipment.

[0020] The corrosion-resistant coating material is stored centrally in the material storage box 3, and the conveying pipe 4 connected to its front end stably conveys the coating to the front end.

[0021] The front of the material storage box 3 is in contact with the rear surface of the support bracket 1. The number of spray heads 5 is set to two, and the two spray heads 5 are symmetrically distributed with the conveying pipe 4 as the center.

[0022] The limiting bracket 6 is located inside the bearing bracket 1, the spray head 5 is located inside the bearing bracket 1, and the bottom of the limiting cylinder 8 is in contact with the top surface of the bearing bracket 1.

[0023] The contact surface between the bottom of the limiting cylinder 8 and the top of the support bracket 1 provides vertical support, while the fit design between the bottom of the drive motor 11 and the bottom of the inner wall of the support bracket 1 enhances horizontal stability.

[0024] The limiting top plate 9 is located on top of the limiting bottom plate 12. The bottom of the drive motor 11 is in contact with the bottom surface of the inner wall of the bearing bracket 1. The limiting bottom plate 12 is located on top of the connecting frame 10. By setting two spray heads 5 symmetrically distributed around the delivery pipe 4, a balanced spraying layout is formed. With the directional constraint of the limiting bracket 6, the spraying angle and coverage can be precisely controlled. This avoids the problem of uneven coating thickness caused by traditional single spray head and improves spraying efficiency through the collaborative operation of dual spray heads. It is especially suitable for the construction of all-round protective coatings on complex curved surfaces such as eccentric rotary valves.

[0025] The fixed frame 13 adopts a symmetrical layout, and the internal limiting ring 14 can quickly lock workpieces of different specifications. When it is necessary to change the spraying parameters, the spraying radius can be changed simply by adjusting the position of the limiting ring 14.

[0026] The number of fixed card frames 13 is set to two, and the two fixed card frames 13 are symmetrically distributed on the left and right sides with the connecting card frame 10 as the center. The limiting ring 14 is located at the top of the bearing bracket 1.

[0027] The limiting ring 14 is located at the bottom of the limiting base plate 12, the fixing frame 13 is located at the bottom of the limiting base plate 12, and the drive motor 11 is located at the bottom of the limiting top plate 9.

[0028] The implementation principle of the corrosion-resistant coating spraying machine for an eccentric rotary valve in this application embodiment is as follows: By setting a limiting cylinder 8 that is locked in the mounting frame 7, the limiting top plate 9 is driven to move up and down, forming an adjustable pressure compensation system. When the spraying head 5 contacts the workpiece surface, the limiting top plate 9 absorbs the axial impact force through the elastic deformation of the cylinder, ensuring constant spraying pressure. The drive motor 11 drives the limiting bottom plate 12 to rotate through the connecting frame 10, so that the spraying head 5 makes eccentric movement along the preset trajectory, perfectly matching the special geometry of the rotary valve, achieving coating coverage without dead angles, and improving the overall spraying efficiency of the equipment. By setting two spraying heads 5 symmetrically distributed around the conveying pipe 4 to form a balanced spraying layout, and with the directional constraint of the limiting bracket 6, the spraying angle and coverage can be precisely controlled. This avoids the problem of uneven coating thickness caused by traditional single spray heads, and improves the spraying efficiency through the collaborative operation of dual spray heads. It is especially suitable for the all-round protective coating construction of complex curved surfaces such as eccentric rotary valves.

[0029] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. An eccentric rotary valve corrosion resistant coating spray machine characterized by, Includes a support bracket (1), a support cross plate (2) is fixedly connected to the rear end of the support bracket (1), a material storage box (3) is fixedly connected to the top of the support cross plate (2), a conveying pipe (4) is fixedly connected to the front of the material storage box (3), a limit bracket (6) is fixedly connected to the front of the conveying pipe (4), and a spray head (5) is fixedly connected to the front of the limit bracket (6). The top of the support bracket (1) is fixedly connected to a mounting frame (7), and a limit cylinder (8) is engaged inside the mounting frame (7). The output end of the limit cylinder (8) is fixedly connected to a limit top plate (9). The bottom of the inner wall of the support bracket (1) is fixedly connected to a connecting frame (10). A drive motor (11) is engaged inside the connecting frame (10). The output end of the drive motor (11) is fixedly connected to a limit bottom plate (12). A fixing frame (13) is fixedly connected to the front of the connecting frame (10). A limit ring (14) is inserted inside the fixing frame (13).

2. A corrosion resistant coating spray mechanism for eccentric rotary valves as defined in claim 1, characterized in that: The front of the material storage box (3) is in contact with the rear end surface of the support bracket (1), and the number of the spray head (5) is set to two, with the two spray heads (5) symmetrically distributed around the conveying pipe (4).

3. A corrosion resistant coating spray mechanism for eccentric rotary valves as defined in claim 1, wherein: The limiting bracket (6) is located inside the bearing bracket (1), the spray head (5) is located inside the bearing bracket (1), and the bottom of the limiting cylinder (8) is in contact with the top surface of the bearing bracket (1).

4. A corrosion resistant coating spray mechanism for eccentric rotary valves as defined in claim 1 wherein: The limiting top plate (9) is located on top of the limiting bottom plate (12), the bottom of the drive motor (11) is in contact with the bottom surface of the inner wall of the bearing bracket (1), and the limiting bottom plate (12) is located on top of the connecting frame (10).

5. The corrosion-resistant coating spraying machine for an eccentric rotary valve as described in claim 1, characterized in that: The number of fixed card frames (13) is set to two, and the two fixed card frames (13) are symmetrically distributed on the left and right with the connecting card frame (10) as the center. The limiting ring (14) is located at the top of the bearing bracket (1).

6. The corrosion-resistant coating spraying machine for an eccentric rotary valve as described in claim 1, characterized in that: The limiting ring (14) is located at the bottom of the limiting base plate (12), the fixing frame (13) is located at the bottom of the limiting base plate (12), and the drive motor (11) is located at the bottom of the limiting top plate (9).

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