A special anti-rust coating spraying device for turbine volute

By using a servo motor-driven rotating wheel and swing plate structure, combined with a PLC controller and support rod design, the problem of uneven coating of the turbine casing was solved, achieving full coverage and efficient coating, thus improving coating quality and production efficiency.

CN224293658UActive Publication Date: 2026-05-29WUXI GUANGTAICHENG MASCH MFG CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUXI GUANGTAICHENG MASCH MFG CO LTD
Filing Date
2025-06-27
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing turbine casing spraying equipment suffers from incomplete coating coverage, resulting in uneven coating thickness, which affects rust prevention and has low production efficiency.

Method used

A servo motor drives the rotating wheel to rotate, and a movable rod slides in a reserved slot to drive the swing plate to swing left and right. The PLC controller enables dynamic angle adjustment of the nozzle, and the bidirectional lead screw and support rod structure ensures stable rotation of the volute, achieving 360-degree spray coverage.

Benefits of technology

It achieves full-coverage spraying of the complex structure of the turbine casing, reduces the need for touch-up spraying, and improves spraying uniformity and production efficiency.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224293658U_ABST
Patent Text Reader

Abstract

The utility model provides a turbine volute special rustproof coating spraying device relates to turbine volute field, including integral mechanism, the bottom fixed connection of integral mechanism has support mechanism, the integral mechanism includes fixed plate, the top of fixed plate is rotatively connected with swing board, the inner wall of swing board is opened and has reserved groove, the top fixed mounting of fixed plate has first servo motor, the output fixed connection of first servo motor has rotating wheel, the front surface fixed connection of rotating wheel has movable rod, the bottom penetration of swing board is provided with the communicating pipe, in the utility model, first servo motor drive rotating wheel rotation, through the sliding of movable rod in reserved groove drive swing board left and right swing, make the spray head reciprocating swing (specific angle can set through PLC controller), this dynamic adjustment mechanism can accurate cover turbine volute's spiral flow channel, corner and so on complex structure, avoid the spraying blind area of traditional fixed spray head.
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Description

Technical Field

[0001] This utility model relates to the field of turbine volutes, and in particular to a special anti-rust coating spraying device for turbine volutes. Background Technology

[0002] A turbine volute is a helical structure commonly used in various fluid machinery. This component is not only used in biology (such as the shell of a snail) but also widely applied in engineering fields, such as turbines in hydroelectric power plants, range hoods, and engine turbochargers.

[0003] The turbine volute rust-proof coating spraying device is a high-efficiency spraying equipment designed for complex curved surface components such as turbine volutes.

[0004] In the prior art, such as the Chinese announcement number CN218554476U, there is an oil pump housing surface spraying device, which includes a frame, legs, a nozzle, positioning fins, bearings, a long shaft, a drive unit, and a positioning unit. The legs are fixedly installed below the frame, the nozzle is fixedly installed through both sides of the frame, the drive unit is installed below the frame, the positioning fins are provided in multiple sets and are fixedly arranged in a circumferential array below the center of the frame, the bearings are fixedly installed inside the multiple sets of positioning fins, the long shaft passes through the lower end of the frame and is rotatably installed inside the bearings, and the positioning unit is installed inside the frame. The positioning unit includes an external threaded pipe, a handwheel, a nut, a lower swing rod, a positioning strip, a fixing ring, an upper swing rod, a support rib, and a conical thin wall.

[0005] In the machining process of worm gears and worm housings, surface rust prevention treatment is a key step to ensure their corrosion resistance and service life. The performance of the spraying device directly affects the quality of the rust-preventive coating. Existing spraying equipment has significant technical bottlenecks in practical applications. Due to the lack of a nozzle position adjustment mechanism, the surface of the machined parts is not fully covered by the spraying, and repeated re-spraying is often required. This not only reduces production efficiency, but also affects the rust prevention effect due to uneven coating thickness, which seriously restricts the practicality of the device. Utility Model Content

[0006] The present invention uses a first servo motor to drive the rotating wheel to rotate, and the sliding of the movable rod in the reserved groove drives the swing plate to swing left and right, so that the nozzle can swing back and forth, thereby solving the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model adopts the following technical solution: a special anti-rust coating spraying device for turbine volutes, comprising an integral mechanism, the bottom of which is fixedly connected to a support mechanism; the integral mechanism includes a fixed plate, the top of which is rotatably connected to a swing plate, the inner wall of which has a reserved groove, the top of which is fixedly mounted with a first servo motor, the output end of which is fixedly connected to a rotating wheel, the front of which is fixedly connected to a movable rod, the bottom of which has a connecting pipe, the outer wall of which is fixedly mounted with a spray head, and the top of which is fixedly mounted with a pump body. Through the above components, the spray head can be driven to swing back and forth, thereby adjusting the angle of the spray head for convenient subsequent use.

[0008] Preferably, a PLC controller is fixedly installed on one side of the outer wall of the fixed plate, and the inner wall of the movable rod is slidably connected to the inner wall of the reserved groove. The PLC controller is electrically connected to the components to control the opening and closing of the components.

[0009] Preferably, a connecting hose is fixedly connected to the back of the pump body, and a connecting pipe is fixedly connected to the front of the pump body. The connecting hose is connected to the inside of the connecting pipe. Through the connecting hose, pump body and connecting pipe, external materials can be transported to the connecting pipe and then sprayed out through the nozzle.

[0010] Preferably, the support mechanism includes a base, and a second servo motor is fixedly installed on the top of the base. The output end of the second servo motor is fixedly connected to a placement plate. The second servo motor can drive the placement plate to rotate, and the volute is fixed on it, so the volute is also driven.

[0011] Preferably, each base has a support leg fixedly connected to its bottom, and each support leg has an anti-slip pad fixedly connected to its bottom. The support legs and anti-slip pads improve the overall stability during use.

[0012] Preferably, the inner wall of the placement plate is slidably connected to a slider, the outer wall of the slider is fixedly connected to a set of clamping plates, the outer wall of the clamping plates is fixedly connected to a set of rubber pads, and the inner wall of the placement plate is movably inserted with a set of bidirectional screws. The outer wall of the bidirectional screws is threaded through the inner wall of the sliders. Through the sliders, clamping plates, rubber pads and bidirectional screws, the volute can be clamped and fixed to prevent displacement during spraying.

[0013] Preferably, the top of the base is provided with a circular groove, and the inner wall of the circular groove is slidably connected with a support rod. The top end face of the support rod is fixedly connected to the bottom of the placement plate. The circular groove and the support rod can improve the stability of the placement plate when rotating.

[0014] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0015] 1. In this utility model, the first servo motor drives the rotating wheel to rotate, and the sliding of the movable rod in the reserved groove drives the swing plate to swing left and right, so that the nozzle can swing back and forth (the specific angle can be set by the PLC controller). This dynamic adjustment mechanism can accurately cover the spiral flow channel, corner and other complex structures of the turbine volute, avoiding the spraying blind area of ​​the traditional fixed nozzle.

[0016] 2. In this utility model, the bidirectional lead screw on the placement plate drives the slider to slide, causing the clamping plate to hold the volute through the rubber pad. The anti-slip texture on the surface of the rubber pad can effectively prevent the workpiece from slipping when rotating. Its elastic buffer design can not only avoid clamping deformation, but also drive the placement plate to achieve 360-degree rotation through the coordinated cooperation of the second servo motor, support rod and circular groove. This structure can ensure that the volute is covered without dead corners during the spraying process, significantly reduce the re-spraying process, improve the uniformity of spraying, and optimize production efficiency and processing accuracy. Attached Figure Description

[0017] Figure 1 This utility model provides a perspective view of the main structure of a special anti-rust coating spraying device for turbine volutes.

[0018] Figure 2 An enlarged perspective view of the structure connecting the fixed plate in a special anti-rust coating spraying device for turbine volutes is provided for this utility model.

[0019] Figure 3 An enlarged perspective view of the structure connecting the swing plates in a special anti-rust coating spraying device for turbine volutes is provided for this utility model.

[0020] Figure 4 An enlarged perspective view of the base connection structure in a special anti-rust coating spraying device for turbine volutes is provided for this utility model.

[0021] Figure 5 This invention presents an enlarged perspective view of the circular groove connection structure in a special anti-rust coating spraying device for turbine volutes.

[0022] Legend: 1. Overall Mechanism; 101. Fixing Plate; 102. Connecting Pipe; 103. Nozzle; 104. PLC Controller; 105. Connecting Pipe; 106. Pump Body; 107. Connecting Hose; 108. Rotating Wheel; 109. First Servo Motor; 110. Swinging Plate; 111. Movable Rod; 112. Reserved Slot; 2. Support Mechanism; 201. Base; 202. Support Leg; 203. Placement Plate; 204. Slider; 205. Rubber Pad; 206. Bidirectional Lead Screw; 207. Clamping Plate; 208. Anti-slip Pad; 209. Circular Slot; 210. Support Rod; 211. Second Servo Motor. Detailed Implementation

[0023] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0025] Please see Figures 1-5 This utility model provides a technical solution: a special anti-rust coating spraying device for turbine volutes, including an integral mechanism 1, with a support mechanism 2 fixedly connected to the bottom of the integral mechanism 1; the integral mechanism 1 includes a fixed plate 101, with a swing plate 110 rotatably connected to the top of the fixed plate 101, a reserved groove 112 opened on the inner wall of the swing plate 110, a first servo motor 109 fixedly installed on the top of the fixed plate 101, a rotating wheel 108 fixedly connected to the output end of the first servo motor 109, a movable rod 111 fixedly connected to the front of the rotating wheel 108, a connecting pipe 102 penetrating through the bottom of the swing plate 110, and nozzles 103 fixedly installed on the outer wall of the connecting pipe 102; a pump body 106 fixedly installed on the top of the fixed plate 101. Through the above components, the nozzles 103 can be driven to swing back and forth left and right to complete the angle adjustment of the nozzles 103, which is convenient for subsequent use.

[0026] like Figure 2 As shown, a PLC controller 104 is fixedly installed on one side of the outer wall of the fixed plate 101. The inner wall of the movable rod 111 is slidably connected to the inner wall of the reserved groove 112. The PLC controller 104 is electrically connected to the components to control the opening and closing of the components.

[0027] like Figure 2As shown, a connecting hose 107 is fixedly connected to the back of the pump body 106, and a connecting pipe 105 is fixedly connected to the front of the pump body 106. The connecting hose 107 is connected to the inside of the connecting pipe 102. Through the connecting hose 107, the pump body 106 and the connecting pipe 105, external materials can be transported to the connecting pipe 102 and then sprayed out through the nozzle 103.

[0028] like Figure 1 and Figure 5 As shown, the support mechanism 2 includes a base 201. A second servo motor 211 is fixedly installed on the top of the base 201. The output end of the second servo motor 211 is fixedly connected to a placement plate 203. The second servo motor 211 can drive the placement plate 203 to rotate, and the volute is fixed on it, so the volute is also driven.

[0029] like Figure 4 As shown, the bottom of the base 201 is fixedly connected to a support leg 202, and the bottom of the support leg 202 is fixedly connected to an anti-slip pad 208. The support leg 202 and the anti-slip pad 208 are designed to improve the overall stability during use.

[0030] like Figure 4 As shown, sliders 204 are slidably connected to the inner wall of the placement plate 203. A set of clamping plates 207 are fixedly connected to the outer wall of the sliders 204. A set of rubber pads 205 are fixedly connected to the outer wall of the clamping plates 207. A set of bidirectional screws 206 are movably inserted into the inner wall of the placement plate 203. The threads of the bidirectional screws 206 penetrate the inner wall of the sliders 204. Through the sliders 204, clamping plates 207, rubber pads 205 and bidirectional screws 206, the volute can be clamped and fixed to prevent displacement during spraying.

[0031] like Figure 5 As shown, a circular groove 209 is provided on the top of the base 201. Support rods 210 are slidably connected to the inner wall of the circular groove 209. The top end face of the support rod 210 is fixedly connected to the bottom of the placement plate 203. The circular groove 209 and the support rods 210 can improve the stability of the placement plate 203 when rotating.

[0032] The usage and working principle of this device are as follows: During operation, the volute is first placed on the placement plate 203. Rotating the bidirectional lead screw 206 causes the slider 204 to drive the clamping plate 207 and rubber pad 205 to hold the volute. The anti-slip texture of the rubber pad 205 prevents slippage and provides elastic cushioning to avoid deformation. Then, under the coordination of the PLC controller 104, all electrical components begin to work. The pump body 106 draws in rust-preventive coating through the connecting pipe 105, and delivers the coating to the connecting pipe 102 via the connecting hose 107. From there, the coating is distributed to each nozzle 103. Simultaneously… The first servo motor 109 drives the rotating wheel 108 to rotate. The movable rod 111 on the rotating wheel 108 slides in the reserved groove 112 of the swing plate 110, causing the swing plate 110 to swing left and right, making the nozzle 103 swing back and forth. Then, the second servo motor 211 drives the placement plate 203 to rotate. The support rod 210 at the bottom of the placement plate 203 slides in the circular groove 209 of the base 201, causing the volute to rotate 360 ​​degrees, ensuring that there are no dead angles in the spraying. Finally, with the coordinated swinging of the nozzle 103 and the rotation of the volute, the anti-rust coating is sprayed, reducing the need for touch-up spraying.

[0033] The PLC controller 104, the first servo motor 109, the second servo motor 211, and the pump body 106 used in this application are all common equipment on the market and are well known to those skilled in the art. In this application, the above equipment is used in a conventional manner without any improvement to its structure and function. As for their settings, installation, and electrical connection methods, those skilled in the art can debug and operate them according to the corresponding product instruction manuals, so they will not be described in detail here.

[0034] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A special anti-rust coating spraying device for turbine volutes, characterized in that, Includes an integral mechanism (1), and a support mechanism (2) is fixedly connected to the bottom of the integral mechanism (1); The overall mechanism (1) includes a fixed plate (101), a swing plate (110) is rotatably connected to the top of the fixed plate (101), a reserved groove (112) is opened on the inner wall of the swing plate (110), a first servo motor (109) is fixedly installed on the top of the fixed plate (101), a rotating wheel (108) is fixedly connected to the output end of the first servo motor (109), a movable rod (111) is fixedly connected to the front of the rotating wheel (108), a connecting pipe (102) is provided through the bottom of the swing plate (110), a nozzle (103) is fixedly installed on the outer wall of the connecting pipe (102), and a pump body (106) is fixedly installed on the top of the fixed plate (101).

2. The rust-proof coating spraying device for turbine volutes according to claim 1, characterized in that: The PLC controller (104) is fixedly installed on one side of the outer wall of the fixed plate (101), and the inner wall of the movable rod (111) is slidably connected to the inner wall of the reserved groove (112).

3. The rust-proof coating spraying device for turbine volutes according to claim 1, characterized in that: The pump body (106) has a fixed connecting hose (107) on the back and a fixed connecting pipe (105) on the front. The connecting hose (107) is connected to the interior of the connecting pipe (102).

4. The rust-proof coating spraying device for turbine volutes according to claim 1, characterized in that: The support mechanism (2) includes a base (201), a second servo motor (211) is fixedly installed on the top of the base (201), and the output end of the second servo motor (211) is fixedly connected to the placement plate (203).

5. The rust-proof coating spraying device for turbine volutes according to claim 4, characterized in that: The bottom of the base (201) is fixedly connected to the support leg (202), and the bottom of the support leg (202) is fixedly connected to the anti-slip pad (208).

6. The rust-proof coating spraying device for turbine volutes according to claim 4, characterized in that: The inner wall of the placement plate (203) is slidably connected to the slider (204). The outer wall of the slider (204) is fixedly connected to a set of clamping plates (207). The outer wall of the clamping plates (207) is fixedly connected to a set of rubber pads (205). A set of bidirectional screws (206) is movably inserted into the inner wall of the placement plate (203). The outer wall of the bidirectional screws (206) is threaded through the inner wall of the slider (204).

7. The rust-proof coating spraying device for turbine volutes according to claim 4, characterized in that: The base (201) has a circular groove (209) on its top. The inner wall of the circular groove (209) is slidably connected to a support rod (210). The top end face of the support rod (210) is fixedly connected to the bottom of the placement plate (203).