Basin-type insulator spraying device and using method

Abstract

The invention discloses a basin-type insulator spraying device and a using method, and relates to the field of spraying device.The basin-type insulator spraying device comprises a supporting table, a lifting rod and a conveying assembly, and motors for driving a rotating shaft to rotate and driving the lifting rod to ascend and descend are arranged in the supporting table; the rotating speed of the rotating shaft and the height of the lifting rod can be set through a program so that manual adjustment can be achieved, the supporting table comprises the rotating shaft arranged on the supporting table, the lifting rod is fixedly connected with the supporting table, a spraying part is arranged on the lifting rod, and the material conveying assembly comprises a constant-temperature tank arranged on the supporting table and a material storage tank arranged in the constant-temperature tank. The insulator is embedded into the positioning shaft, then the motor is started, the rotating disc is controlled to rotate, the tackle slides at the same time, spraying is started at the same time till uniform spraying of the insulator is completed, uniform spraying is effectively conducted on the basin-type insulator, and the insulator is protected in the spraying process.

Description

Technical Field

[0001] The invention relates to the technical field of spraying equipment, in particular to a basin-type insulator spraying device and a use method thereof. Background Art

[0002] Insulator surface modification coating is an effective strategy to suppress surface charge and improve surface electric field. By doping different fillers into epoxy resin and coating it on the surface of insulator, the insulation performance and thermal conductivity of the insulator can be enhanced. However, at present, the relevant research on insulating coating is focused on coating materials, while there is no corresponding progress in coating methods and corresponding coating equipment.

[0003] Because the GIS guide rod has a coaxial cylindrical structure in the middle, it will cause a significant temperature difference, showing a gradient distribution of decreasing temperature from the center to the shell, resulting in a harsh working environment for the insulator, so there are high requirements for the thermodynamic and electrical properties of the coating. And because the temperature gradient is too large, it will cause different degrees of thermal expansion, resulting in coating shedding and failure.

[0004] The current coating of basin insulators is still in the stage of scientific research and exploration, so there is no mature coating coating method. Therefore, conventional coating methods such as brush coating, roller coating and dipping have their own advantages and disadvantages. Different coating methods and coating temperatures will form different surface micromorphology, surface roughness and coating thickness uniformity and other parameters. For example, spraying will make the coating more uniform, but it may produce bubble defects inside the coating. Roll coating, brush coating and magnetron sputtering and other coating methods also have their own limitations and advantages and disadvantages. If high-quality coating is to be carried out, a coating method that matches the properties of the coating must be selected, and the corresponding coating device must be designed and manufactured, which requires a lot of experiments and time costs.

[0005] Therefore, it is necessary to innovate the coating method to achieve better controllability and uniformity in thickness and uniformity. Summary of the invention

[0006] In view of the problems existing in the above-mentioned pot-type insulator spraying device, the present invention is proposed.

[0007] Therefore, the problem to be solved by the present invention is how to make the spraying effect more uniform and smooth.

[0008] In order to solve the above technical problems, the present invention provides the following technical solutions: a basin-type insulator spraying device, which includes a support platform, including a rotating shaft arranged on the support platform, and the rotating shaft can drive the insulator to rotate; a lifting rod, the lifting rod is fixedly connected to the support platform, and a spraying part is arranged on the lifting rod; the insulator is evenly sprayed through the action coordination between the spraying part and the rotating shaft; a feeding assembly, including a constant temperature tank arranged on the support platform and a storage tank arranged in the constant temperature tank.

[0009] As a preferred solution of the pot-type insulator spraying device of the present invention, wherein: the rotating shaft controls the rotation of a rotating disk, the rotating disk is used to place the insulator, and a positioning shaft is also provided on the rotating disk.

[0010] As a preferred solution of the basin-type insulator spraying device described in the present invention, the spraying part includes a guide rail fixedly connected to the lifting rod and a pulley sliding on the guide rail, a spray head is arranged on the pulley, the pulley is controlled by a motor to perform reciprocating motion, and the spray head can be adjusted in angle.

[0011] As a preferred solution of the pot-type insulator spraying device of the present invention, the material storage tank is connected to the spray head through a material delivery pipe, and a material delivery pump and an air pump are also provided on the material delivery pipe.

[0012] As a preferred solution of the basin-type insulator spraying device of the present invention, the spraying cycle of the spray head is equal to the time it takes for the pulley to complete one reciprocating movement.

[0013] As a preferred solution of the basin-type insulator spraying device of the present invention, the moving speed of the spray head matches the linear speed of the rotating shaft to maintain relative stillness.

[0014] As a preferred solution of the basin-type insulator spraying device of the present invention, the spraying angle of the spray head matches the rotation angle of the insulator within the spraying cycle, and the rotation angle of the insulator does not exceed the spraying angle.

[0015] Another object of the present invention is to provide a method for using a pot-type insulator spraying device: inserting an insulator sleeve on a rotating shaft, and driving the rotating shaft to rotate at a uniform speed by a motor;

[0016] The motor is energized to control the pulley to reciprocate in the radial direction of the insulator;

[0017] Adjust the height of the lifting rod to adapt the spraying area of ​​the nozzle.

[0018] As a preferred scheme of the method for using the basin-type insulator spraying device of the present invention, before the spray head sprays, the temperature of the thermostatic tank is adjusted to 55° C. to 65° C. to make the viscosity of the coating appropriate.

[0019] As a preferred solution of the method for using the pot-type insulator spraying device of the present invention, the insulator is placed forward or reversely, and the concave surface and convex surface of the insulator can be sprayed accordingly.

[0020] The beneficial effects of the present invention are as follows: through the cooperation of various components, the pot-type insulator can be effectively sprayed evenly and smoothly, and the viscosity and sedimentation rate of the coating can be controlled by temperature control so that the filler distribution inside the coating is also uniform, and the insulator is protected during the spraying process. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. 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 creative work. Among them:

[0022] Figure 1 This is a scene diagram of the basin insulator spraying device.

[0023] Figure 2 This is a structural diagram of the basin insulator spraying device from another angle.

[0024] Figure 3 This is an exploded view of the basin insulator spraying device.

[0025] Figure 4 This is a schematic diagram of the movement of the basin insulator spraying device. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.

[0027] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it an embodiment that is mutually exclusive with other embodiments, either individually or selectively.

[0029] Example 1

[0030] Reference Figure 1 and Figure 2 , which is the first embodiment of the present invention, and this embodiment provides a basin-type insulator spraying device, which includes a support platform 100, a lifting rod 200 and a feeding assembly 300. The support platform 100 is provided with motors for driving the rotation of the rotating shaft 101 and the lifting of the lifting rod 200, and the rotation speed of the rotating shaft 101 and the height of the lifting rod 200 can be set by a program and then manually adjusted. At the same time, it is worth noting that the external support pile 101a-2 is also controlled by the motor, but it should be noted that the motors mentioned above are not the same motor, but operate independently. The external support pile 101a-2 is controlled by the motor to extend and retract, and when it extends outward, it can just clamp the hollow area of ​​the column insulator, thereby fixing the insulator.

[0031] Specifically, the support platform 100 includes a rotating shaft 101 arranged on the support platform 100, and the rotating shaft 101 can drive the insulator to rotate. Since there are many small holes on the pot-type insulator, if these small holes are not protected during the spraying process, the paint will clog the small holes. The original function of the small holes is to drain water and prevent pollution, thereby reducing the risk of flashover and reducing wind pressure. Therefore, it is necessary to protect the small holes on the insulator.

[0032] Preferably, the lifting rod 200 is fixedly connected to the support platform 100, and a spraying part 201 is provided on the lifting rod 200. Since the pot-type insulator has a convex surface and a concave surface, it is necessary to select the height for each surface, so that the insulator can be sprayed more evenly;

[0033] Preferably, the insulator is evenly sprayed by the cooperation between the spraying member 201 and the rotating shaft 101;

[0034] Preferably, the material delivery assembly 300 includes a constant temperature tank 301 disposed on the support platform 100 and a material storage tank 302 disposed in the constant temperature tank 301;

[0035] The temperature of the thermostatic tank 301 is controlled to control the viscosity and sedimentation rate of the coating. The temperature of the thermostatic tank 301 can be controlled between 60 and 70 degrees, so that the storage tank 302 placed inside the thermostatic tank 301 can be heated evenly.

[0036] When in use, the staff embeds the insulator on the positioning shaft 101a-1, then starts the motor, controls the turntable 101a to rotate, and the pulley 201b slides, and starts spraying at the same time until the insulator is evenly sprayed.

[0037] Example 2

[0038] Reference Figures 1 to 4 , which is the second embodiment of the present invention, and this embodiment is based on the previous embodiment.

[0039] Specifically, the rotating shaft 101 controls the rotating disk 101a to rotate. The rotating disk 101a is used to place insulators, and a positioning shaft 101a-1 is also provided on the rotating disk 101a.

[0040] Assuming that the rotation speed of the rotating shaft 101 is n, the unit is revolutions per minute, then the rotation period T of the rotating shaft 101 (unit: seconds) is:

[0041]

[0042] At the same time, the spraying cycle P is defined as follows:

[0043] Where f is the reciprocating frequency of the nozzle, that is, the number of times the nozzle completes reciprocating movement per second. If the movement of the nozzle is continuous, then P is the time it takes for the nozzle to move from one end point to another and then return.

[0044] The spraying cycle P refers to the time required for the nozzle to complete a complete reciprocating movement. This cycle must match the time required for the insulator to complete a complete rotation to ensure uniformity during the spraying process and avoid repeated spraying;

[0045] In order to avoid repeated spraying, the spraying period P must be equal to the rotation period T of the insulator. In this way, when the nozzle completes one reciprocating movement, the insulator also completes one rotation, and the relative position of the nozzle and the insulator returns to the starting point, thus avoiding repeated spraying in the same area;

[0046] Angular velocity ω of the insulator (unit: radians / second):

[0047] ω=2πn

[0048] Moving speed v of pulley 201b (unit: m / s):

[0049] v=ω*r

[0050] Where r is the rotation radius of the insulator;

[0051] Spraying width W (unit: meter):

[0052] W = spraying width of nozzle

[0053] Spraying angle θ (unit: radian):

[0054] θ=2πrW

[0055] Spraying coverage area A (unit: square meters):

[0056] A=W*r

[0057] Flow rate Q of spraying material (unit: volume / time, for example: liter / minute):

[0058] It needs to be determined based on the viscosity of the spraying material, the spraying width W and the spraying speed v; the coverage C of the spraying material:

[0059]

[0060] Experimental data table:

[0061]

[0062] Combining the data in the above table, we can see that: the nozzle movement speed is 1.5cm / s, the spraying angle is 20 degrees, the insulator rotation speed is one revolution every two minutes, and the observation result is uniform spraying without repeated spraying, and the spraying efficiency is best at this time.

[0063] Preferably, the spraying cycle of the nozzle 201b-1 is equal to the time it takes for the sled 201b to complete one reciprocating movement.

[0064] Preferably, the spraying part 201 includes a guide rail 201a fixedly connected to the lifting rod 200 and a pulley 201b sliding on the guide rail 201a, and a nozzle 201b-1 is arranged on the pulley 201b. The pulley 201b is controlled by a motor to make reciprocating motion, and the nozzle 201b-1 can be adjusted in angle. The angle adjustment of the nozzle 201b-1 can refer to the existing electric adjustment nozzle, and the angle can be automatically adjusted by the staff.

[0065] Preferably, the storage tank 302 is connected to the nozzle 201b-1 through a feed pipe 303, and a feed pump 303a and an air pump 303b are also provided on the feed pipe 303. The feed pump 303a can be an ISW80-160 model, and the air pump 303b can be a DLB centrifugal air pump.

[0066] Preferably, the spraying period P of the nozzle 201b-1 is equal to the time it takes for the sled 201b to complete one reciprocating movement.

[0067] Preferably, the moving speed of the nozzle 201b-1 matches the linear speed of the rotating shaft 101 to maintain relative stillness.

[0068] Preferably, the spraying angle θ of the nozzle 201b-1 matches the rotation angle of the insulator within the spraying period P, and the rotation angle of the insulator does not exceed the spraying angle θ;

[0069] It is worth noting that the moving speed of the trolley 201b, the rotation speed of the turntable 101a and the angle of the nozzle 201b-1 can all be controlled by a program.

[0070] When in use, after the staff places the insulator on the positioning shaft 101a-1, the staff turns on the corresponding motor, the rotating shaft 101 rotates, and then the insulator is also rotated, and due to the operation of the feed pump 303a and the air pump 303b, the nozzle 201b-1 starts to spray, and during the spraying process, in order to make the spraying uniform, the pulley 201b will move the nozzle 201b-1, and the relationship between movement and rotation has been obtained through experiments.

[0071] Example 3

[0072] Reference Figure 4 , which is the third embodiment of the present invention, and is based on the first two embodiments.

[0073] Specifically, the insulator is embedded on the rotating shaft 101, and the rotating shaft 101 is driven by the motor to rotate at a constant speed;

[0074] The motor is powered on to control the pulley 201b to reciprocate in the radial direction of the insulator;

[0075] The height of the lifting rod 200 is adjusted to adapt to the spraying area of ​​the spray head 201b-1.

[0076] Preferably, before the spraying of the nozzle 201b-1, the temperature of the thermostatic tank 301 is adjusted to 55°C to 65°C to make the viscosity of the coating appropriate.

[0077] Preferably, the insulator is placed forward or reversely, and the concave surface and convex surface of the insulator can be sprayed accordingly.

[0078] When in use, the viscosity of the coating is required to be below 5000cps. The viscosity of epoxy resin is very sensitive to temperature. The higher the temperature, the lower the viscosity of epoxy resin. Therefore, the temperature of epoxy resin coating is required to be high enough to spray smoothly. However, since the modified nanofiller in the epoxy resin coating will settle when the viscosity of the epoxy resin matrix is ​​too low, affecting the uniformity of the filler distribution inside the coating, the temperature of epoxy resin spraying should be maintained at 55℃~65℃ to ensure smooth spraying and uniform coating.

[0079] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A basin insulator spraying device, characterized in that: include, A support platform (100) comprises a rotating shaft (101) arranged on the support platform (100), wherein the rotating shaft (101) can drive the insulator to rotate; A lifting rod (200), the lifting rod (200) being fixedly connected to the support platform (100), and a spraying part (201) being arranged on the lifting rod (200); The insulator is evenly sprayed by the cooperation between the spraying part (201) and the rotating shaft (101); The material conveying assembly (300) comprises a constant temperature tank (301) arranged on the support platform (100) and a material storage tank (302) arranged in the constant temperature tank (301).

2. The pot-type insulator spraying device according to claim 1, characterized in that: The rotating shaft (101) controls the rotation of the rotating disk (101a), the rotating disk (101a) is used to place the insulator, and a positioning shaft (101a-1) is also provided on the rotating disk (101a).

3. The pot-type insulator spraying device according to claim 2, characterized in that: The spraying member (201) comprises a guide rail (201a) fixedly connected to the lifting rod (200) and a pulley (201b) sliding on the guide rail (201a); a spray head (201b-1) is arranged on the pulley (201b); the pulley (201b) is controlled by a motor to perform reciprocating motion; and the spray head (201b-1) can be adjusted in angle.

4. The pot-type insulator spraying device according to claim 3, characterized in that: The material storage tank (302) is connected to the nozzle (201b-1) via a material delivery pipe (303), and a material delivery pump (303a) and an air pump (303b) are also provided on the material delivery pipe (303).

5. The pot-type insulator spraying device according to claim 4, characterized in that: The spraying cycle of the spray head (201b-1) is equal to the time it takes for the pulley (201b) to complete one reciprocating movement.

6. The pot-type insulator spraying device according to claim 5, characterized in that: The moving speed of the nozzle (201b-1) matches the linear speed of the rotating shaft (101) to maintain relative stillness.

7. The pot-type insulator spraying device according to claim 6, characterized in that: The spraying angle of the spray head (201b-1) matches the rotation angle of the insulator within the spraying cycle, and the rotation angle of the insulator does not exceed the spraying angle.

8. A method of use, characterized in that: Applied to the pot-type insulator spraying device as claimed in claims 1 to 7, the method of use comprises: The insulator is inserted into the rotating shaft (101), and the rotating shaft (101) is driven by a motor to rotate at a constant speed; The motor is energized to control the pulley (201b) to reciprocate in the radial direction of the insulator; The height of the lifting rod (200) is adjusted to adapt to the spraying area of ​​the spray head (201b-1).

9. The pot-type insulator spraying device according to claim 8, characterized in that: Before the spray head (201b-1) sprays, the temperature of the thermostatic tank (301) is adjusted to 55°C to 65°C to ensure that the viscosity of the coating is appropriate.

10. The pot-type insulator spraying device according to claim 9, characterized in that: The insulator is placed forward or reversely, and the concave surface and the convex surface of the insulator can be sprayed accordingly.

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