A spraying device for the construction of an electric reactor insulation coating

Abstract

The utility model relates to the technical field of reactor insulation paint construction, specifically relates to a kind of spraying device for reactor insulation paint construction, including handheld section, handheld section is fixedly connected with bottom plate, bottom plate is fixedly connected with support plate, support plate is fixedly connected with top plate, bottom plate and top plate are rotatably connected with lead screw between, lead screw is threadedly connected with first lifting plate, one side of lead screw is equipped with spline shaft, spline shaft spline is connected with spline sleeve, spline sleeve is slidably connected in spline shaft, second lifting plate is fixedly connected with spline sleeve, second lifting plate is fixedly connected with telescopic pipe, telescopic pipe is connected with infusion branch pipe, infusion branch pipe is connected with spray head. The utility model drives the spray head to carry out uniform-speed lifting movement by lead screw, simultaneously drives the spray head to carry out certain angle reciprocating swing by spline shaft, so that the spray head can form uniform spraying track on the surface of reactor, to improve the uniformity of spraying.

Description

Technical Field

[0001] This utility model relates to the field of reactor insulation coating construction technology, specifically to a spraying device for reactor insulation coating construction. Background Technology

[0002] Reactors are important reactive power compensation and current limiting devices in power systems. After long-term operation and wind and sand erosion, in order to ensure their electrical insulation performance and ability to resist environmental erosion, it is necessary to regularly spray insulating coating on the surface of the reactor.

[0003] Currently, the application of insulating coatings to reactor surfaces still largely relies on manual operation. Typically, operators hold a spray gun and move back and forth around the reactor to apply the coating. However, the uniformity of the coating cannot be guaranteed by purely manual operation. Due to the reliance on the worker's experience and feel, the distance between the spray gun and the reactor surface, the moving speed, and the angle may all be inconsistent, which can easily lead to uneven coating thickness and defects such as runs, orange peel, or exposed substrate. Therefore, there are still shortcomings and deficiencies in the existing technology. Utility Model Content

[0004] This invention provides a spraying device for applying insulating coating to reactors, in order to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a spraying device for applying insulating coating to reactors, comprising a handheld section, a horizontally arranged base plate fixedly connected to the top of the handheld section, a vertically arranged support plate fixedly connected to one side of the top surface of the base plate, a top plate corresponding to the base plate fixedly connected to the top of the support plate, a lead screw rotatably connected between the base plate and the top plate, the bottom end of the lead screw extending to the outside of the base plate and being driven by a first stepper motor, a first lifting plate threaded onto the lead screw, and a splined shaft parallel to the lead screw on the side of the lead screw away from the support plate, the splined shaft rotatably connected between the base plate and the top plate. The bottom end extends to the outside of the base plate and is connected to a second stepper motor. A splined sleeve that is rotatably connected to the first lifting plate is splined on the splined shaft. The splined shaft is hollow inside and a second lifting plate is slidably connected inside the splined shaft. A strip-shaped through hole is opened along the axial direction on the splined shaft. The second lifting plate extends to the outside of the splined shaft through the strip-shaped through hole and is fixedly connected to the splined sleeve. A telescopic tube is fixedly connected to the bottom surface of the second lifting plate. The bottom end of the telescopic tube is connected to a pressurized infusion mechanism. The top end of the telescopic tube is connected to a horizontally set infusion branch tube. The end of the infusion branch tube away from the telescopic tube passes through the strip-shaped through hole and the splined sleeve in sequence and is connected to a nozzle located outside the splined sleeve.

[0006] Preferably, the bottom end of the spline shaft is fixedly connected to and communicates with a receiving tube, the lower part of the telescopic tube is located inside the receiving tube, and the bottom end of the telescopic tube is fixedly connected to the bottom end of the receiving tube.

[0007] Preferably, the pressurized infusion mechanism includes a storage tank, a handle on the top surface of the storage tank, a pump body on the storage tank, an infusion hose connected to the outlet of the pump body, and the end of the infusion hose away from the pump body connected to the bottom end of a telescopic tube.

[0008] Preferably, the bottom plate is detachably connected to an arc-shaped first positioning plate at the end away from the support plate, and the top plate is detachably connected to an arc-shaped second positioning plate at the end away from the support plate. The first and second positioning plates are adapted to the outer surface of the reactor.

[0009] Preferably, a support section is fixedly connected to the bottom of the handheld section, and the support section is an electric telescopic rod, with the telescopic end of the electric telescopic rod fixedly connected to the handheld section.

[0010] Preferably, an arc-shaped baffle is fixedly connected to the outside of the nozzle.

[0011] The beneficial effects of this utility model are as follows: (1) This utility model drives the lead screw to rotate through the first stepper motor, which drives the first lifting plate and the nozzle linked with it to perform uniform and linear lifting and lowering movements, overcoming the problem of unstable manual movement speed. At the same time, the second stepper motor drives the spline shaft to swing back and forth, which drives the nozzle to swing back and forth at a certain angle, so that the nozzle can form a dense and uniform spraying trajectory on the surface of the reactor, thereby improving the uniformity of the coating thickness; (2) The design of the hollow and combined telescopic tube inside the spline shaft can prevent the entanglement and interference problems that may occur in the pipeline during complex movements, ensuring the reliability of long-term operation; (3) The automatic lifting and swinging of the nozzle replaces most of the repetitive labor of the worker's arm. The support section can bear most of the weight of the device. The worker mainly plays the role of guidance and positioning, thereby reducing the worker's physical exertion and fatigue, and improving work efficiency. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a cross-sectional structural diagram of the present invention; Figure 3 for Figure 2 A magnified structural diagram of part A in the middle; Figure 4 This is a structural schematic diagram of the cross-section of the new spline shaft of this utility model; Figure 5 This is a schematic diagram of the structure of the spray-coated reactor of this utility model.

[0013] Reference numerals: 1. Handheld section; 2. Base plate; 3. Support plate; 4. Top plate; 5. Lead screw; 6. First stepper motor; 7. First lifting plate; 8. Splined shaft; 9. Second stepper motor; 10. Splined sleeve; 11. Second lifting plate; 12. Strip-shaped through hole; 13. Telescopic tube; 14. Pressurized infusion mechanism; 141. Storage tank; 142. Handle; 143. Pump body; 144. Infusion hose; 15. Infusion branch pipe; 16. Nozzle; 17. Receiving tube; 18. First positioning plate; 19. Second positioning plate; 20. Support section; 21. Arc-shaped baffle; 22. Reactor. Detailed Implementation

[0014] The present invention will now be further described with reference to the accompanying drawings.

[0015] like Figure 1-5 As shown, this utility model provides a spraying device for applying insulating coating to a reactor 22, including a handheld section 1. A horizontally arranged base plate 2 is fixedly connected to the top of the handheld section 1. A vertically arranged support plate 3 is fixedly connected to one side of the top surface of the base plate 2. A top plate 4 corresponding to the base plate 2 is fixedly connected to the top of the support plate 3. A lead screw 5 is rotatably connected between the base plate 2 and the top plate 4. The bottom end of the lead screw 5 extends to the outside of the base plate 2 and is connected to a first stepper motor 6. A first lifting plate 7 is threaded onto the lead screw 5. A splined shaft 8 parallel to the lead screw 5 is provided on the side of the lead screw 5 away from the support plate 3. The splined shaft 8 is rotatably connected between the base plate 2 and the top plate 4. The bottom end of the splined shaft 8 extends to the outside of the base plate 2 and is connected to a second stepper motor 9. A splined thread is connected to the splined shaft 8. The key sleeve 10 is rotatably connected to the first lifting plate 7 via a bearing. The spline shaft 8 is hollow inside, and the second lifting plate 11 is slidably connected inside the spline shaft 8. A strip-shaped through hole 12 is opened along the axial direction on the spline shaft 8. The second lifting plate 11 extends to the outside of the spline shaft 8 through the strip-shaped through hole 12 and is fixedly connected to the spline sleeve 10. A telescopic tube 13 is fixedly connected to the bottom surface of the second lifting plate 11. The telescopic tube 13 can be a corrugated pipe or other pipe fitting with good axial expansion and sealing properties. The bottom end of the telescopic tube 13 is connected to a pressurized infusion mechanism 14, and the top end of the telescopic tube 13 is connected to a horizontally arranged infusion branch tube 15. The end of the infusion branch tube 15 away from the telescopic tube 13 passes through the strip-shaped through hole 12 and the spline sleeve 10 in sequence and is connected to a nozzle 16 located outside the spline sleeve 10.

[0016] Specifically, during use, the worker holds the handheld section 1 and moves the device close to the reactor 22, so that the arc-shaped surfaces of the first positioning plate 18 and the second positioning plate 19 respectively fit against the bottom and top side surfaces of the reactor 22. Then, the pressurized infusion mechanism 14 is activated, pressurizing the insulating coating and sending it into the telescopic tube 13. The insulating coating flows sequentially through the telescopic tube 13 and the infusion branch tube 15 before being atomized and sprayed out from the nozzle 16. Simultaneously, the first stepper motor 6 and the second stepper motor 9 are activated. The first stepper motor 6 drives the lead screw 5 to rotate at a constant speed, causing the first lifting plate 7 to descend or rise at a constant speed along the spline shaft 8. Since the spline sleeve 10, the second lifting plate 11, the infusion branch tube 15, and the nozzle 16 are all linked to the first lifting plate 7, the nozzle 16 also moves accordingly. The device performs a uniform lifting and lowering motion. At the same time, the second stepper motor 9 drives the spline shaft 8 to reciprocate at a certain angle. This rotation is transmitted to the spline sleeve 10 through the spline engagement, which in turn drives the nozzle 16 to reciprocate horizontally. In this way, the vertical lifting and lowering motion of the nozzle 16 and the horizontal swinging motion combine to form a complex and densely covered spraying trajectory, ensuring that the paint is evenly covered in the arc-shaped area of ​​the reactor 22 facing the nozzle 16. Then, after the device completes the spraying of the current area, the worker only needs to hold the device and move it a suitable distance around the circumference of the reactor 22 so that the positioning plate re-attaches to the surface of the reactor 22, and repeat the above spraying process. Finally, after circling the reactor 22 once, the entire outer surface is evenly sprayed.

[0017] In some embodiments, the bottom end of the splined shaft 8 is fixedly connected to and communicates with the receiving tube 17, the lower part of the telescopic tube 13 is located inside the receiving tube 17, and the bottom end of the telescopic tube 13 is fixedly connected to the bottom end of the receiving tube 17. Specifically, when the nozzle 16 rises, the telescopic tube 13 is stretched; when the nozzle 16 falls, the telescopic tube 13 is compressed and retracted into the receiving tube 17, preventing the telescopic tube 13 from bending excessively or interfering with other components, thereby providing protection and storage space for the telescopic tube 13 and ensuring the normal operation of the nozzle 16 at its limit stroke.

[0018] In some embodiments, the pressurized infusion mechanism 14 includes a storage tank 141, a handle 142 on the top surface of the storage tank 141, and a pump body 143 on the storage tank 141. The inlet of the pump body 143 extends through a pipe below the surface of the coating liquid in the storage tank 141, and the outlet of the pump body 143 is connected to an infusion hose 144. The end of the infusion hose 144 away from the pump body 143 is connected to the bottom end of the telescopic tube 13. Specifically, after the pump body 143 is started, it can pump the insulating coating out of the storage tank 141 and pressurize and deliver it to the subsequent pipeline.

[0019] In some embodiments, an arc-shaped first positioning plate 18 is detachably connected to the end of the base plate 2 away from the support plate 3, and an arc-shaped second positioning plate 19 is detachably connected to the end of the top plate 4 away from the support plate 3. The first positioning plate 18 and the second positioning plate 19 are adapted to the outer surface of the reactor 22. Specifically, the arc-shaped concave surfaces of the first positioning plate 18 and the second positioning plate 19 are designed according to the cylindrical outer shell contour of the reactor 22, which can fit well against the surface of the reactor 22, thereby improving the stability of the spraying operation. In addition, a series of positioning plates with different radii of curvature can be prepared for replacement according to the specific outer diameter of different reactors 22, thereby enhancing the versatility of the device.

[0020] In some embodiments, a support section 20 is fixedly connected to the bottom end of the handheld section 1. The support section 20 is an electric telescopic rod, and the telescopic end of the electric telescopic rod is fixedly connected to the handheld section 1. Specifically, in use, the bottom end of the electric telescopic rod is supported on the ground or workbench. The electric telescopic rod itself can bear most of the weight of the device, thereby reducing the labor intensity of the worker. In addition, by adjusting the length of the electric telescopic rod, the working height of the entire spraying device can be easily adjusted so that it can be aligned with the reactor 22 at different heights.

[0021] In some embodiments, an arc-shaped baffle 21 is fixedly connected to the outside of the nozzle 16. By setting the arc-shaped baffle 21, the spraying range of the paint can be constrained, the spraying accuracy can be improved, and the impact on the substation operating environment can be reduced.

[0022] The above embodiments can be combined with each other.

[0023] The above embodiments are not intended to limit the shape, material, structure, etc. of this utility model in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this utility model shall fall within the protection scope of this utility model.

Claims

1. A spraying device for applying insulating coating to reactors, comprising a handheld section, characterized in that: A horizontally positioned base plate is fixedly connected to the top of the handheld section. A vertically positioned support plate is fixedly connected to one side of the top surface of the base plate. A top plate corresponding to the base plate is fixedly connected to the top of the support plate. A lead screw is rotatably connected between the base plate and the top plate. The bottom end of the lead screw extends to the outside of the base plate and is connected to a first stepper motor. A first lifting plate is threaded onto the lead screw. A splined shaft parallel to the lead screw is provided on the side of the lead screw away from the support plate. The splined shaft is rotatably connected between the base plate and the top plate. The bottom end of the splined shaft extends to the outside of the base plate and is connected to a second stepper motor. A splined sleeve is rotatably connected to the first lifting plate on the key shaft. The splined shaft is hollow inside, and a second lifting plate is slidably connected inside the splined shaft. A strip-shaped through hole is opened along the axial direction on the splined shaft. The second lifting plate extends to the outside of the splined shaft through the strip-shaped through hole and is fixedly connected to the splined sleeve. A telescopic tube is fixedly connected to the bottom surface of the second lifting plate. The bottom end of the telescopic tube is connected to a pressurized infusion mechanism, and the top end of the telescopic tube is connected to a horizontally arranged infusion branch tube. The end of the infusion branch tube away from the telescopic tube passes through the strip-shaped through hole and the splined sleeve in sequence and is connected to a nozzle located outside the splined sleeve.

2. The spraying device for applying insulating coating to reactors according to claim 1, characterized in that: The bottom end of the spline shaft is fixedly connected to and communicates with a receiving tube. The lower part of the telescopic tube is located inside the receiving tube, and the bottom end of the telescopic tube is fixedly connected to the bottom end of the receiving tube.

3. The spraying device for applying insulating coating to reactors according to claim 1, characterized in that: The pressurized infusion mechanism includes a storage tank with a handle on the top surface and a pump body on the storage tank. The outlet of the pump body is connected to an infusion hose, and the end of the infusion hose away from the pump body is connected to the bottom end of a telescopic tube.

4. The spraying device for applying insulating coating to reactors according to claim 1, characterized in that: The bottom plate is detachably connected to an arc-shaped first positioning plate at one end away from the support plate, and the top plate is detachably connected to an arc-shaped second positioning plate at one end away from the support plate. The first and second positioning plates are adapted to the outer surface of the reactor.

5. The spraying device for applying insulating coating to reactors according to claim 1, characterized in that: The bottom of the handheld section is fixedly connected to a support section, which is an electric telescopic rod. The telescopic end of the electric telescopic rod is fixedly connected to the handheld section.

6. The spraying device for applying insulating coating to reactors according to claim 1, characterized in that: An arc-shaped baffle is fixedly connected to the outside of the nozzle.

Images