Spraying machine for hub machining
By designing a wheel hub processing and painting machine with a self-rotating power housing and a spraying adjustment and circulation structure, the problems of compatibility of multi-size wheel hub painting equipment and spraying liquid recycling have been solved, realizing an efficient and environmentally friendly painting process.
Patent Information
- Application Number
- CN202520367451.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-05
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-03-05
AI Technical Summary
Existing wheel hub processing and painting equipment struggles to balance clamping multiple wheel hub sizes with efficient paint recovery, resulting in high production costs and low resource utilization efficiency.
A wheel hub painting machine was designed, which adopts a self-rotating power housing and a spray positioning and circulation structure to achieve stable locking and all-round spraying of multi-size wheel hubs. It is also equipped with a spray liquid circulation and recovery system to ensure high efficiency and environmental protection in the spraying process.
It enables flexible and adaptable spraying of multi-size wheel hubs, ensuring a seamless spraying effect, while effectively recycling and reusing the spraying liquid, reducing production costs and improving resource utilization efficiency.
Smart Images

Figure CN223931695U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of wheel hub processing equipment, specifically a spraying machine for wheel hub processing. Background Technology
[0002] The wheel hub is the central axle mounting part of a wheel, also called a rim, steel rim, wheel, or tire rim. It is the metal component that supports the tire's inner contour. Wheel hubs come in many varieties depending on their diameter, width, molding method, and material. As a crucial component of a vehicle's driving system, the wheel hub bears the vehicle's load-bearing, steering, driving, and braking functions, and its performance directly affects driving safety, handling stability, and ride comfort. Furthermore, painting can make the wheel hub more aesthetically pleasing, enhancing the overall visual appeal of the vehicle. Painting can also effectively cover surface defects, prevent corrosion, and extend the wheel hub's lifespan. After painting, a robust coating is formed on the wheel hub's surface. This coating has extremely strong resistance to acids, alkalis, impacts, and wear, and can withstand long-term erosion from strong ultraviolet radiation and acid rain without powdering, fading, or peeling. In the painting process of automotive aluminum alloy wheels, powder coating is the first step, with a coating thickness of 100 micrometers. This process effectively improves the performance of aluminum wheels, making them better suited to the driving environment, thus enhancing driver safety and extending the lifespan of the wheels. Powder coating, on the other hand, utilizes the principle of electrostatic spraying to adsorb dry powder onto aluminum profiles. After baking at temperatures above 200°C, the powder solidifies into a 60-micron-thick, strong, and glossy coating. In general, the wheel coating process plays a crucial role in wheel manufacturing. It not only enhances the aesthetics and durability of the wheels but also effectively prevents corrosion and extends their lifespan. However, currently available wheel processing and coating equipment often faces challenges in simultaneously handling the compatible clamping of multi-size wheels and efficiently recovering the coating liquid. Therefore, this project aims to innovatively design a coating processing device to fundamentally solve this technical problem. While existing technologies may already offer solutions to the aforementioned issues, this project seeks to provide an alternative or replacement technical solution. Utility Model Content
[0003] To achieve the above objectives, this utility model is implemented through the following technical solution: a spraying machine for wheel hub processing, comprising: a spraying machine housing, a pair of machine legs, and a self-rotating power housing, wherein the self-rotating power housing is installed on the spraying machine housing, the pair of machine legs are respectively installed on the spraying machine housing, a counter-impact wheel hub locking structure is installed inside the spraying machine housing, and a spraying adjustment and circulation structure is installed on the spraying machine housing;
[0004] The impeller hub locking structure includes: a spin motor, a connecting shaft, a sleeve shaft divider, a divider bolt, a closed auxiliary shaft, a telescopic positioning air rod, and an auxiliary bearing;
[0005] The spin motor is installed inside the spin power housing. The connecting shaft is inserted into the paint sprayer housing and connected to the spin motor. The sleeve spacer is fitted on the outside of the connecting shaft. The spacer bolt is installed on the sleeve spacer and connected to the connecting shaft. The closed auxiliary shaft is installed on the telescopic positioning air rod. The telescopic positioning air rod is installed on the auxiliary bearing. The auxiliary bearing is installed inside the paint sprayer housing.
[0006] It should be noted that, as described above, after opening the sealed hatch on the sprayer housing, inserting the hub into the connecting shaft, and driving the telescopic positioning air rod to extend, the sealed auxiliary shaft and the connecting shaft are brought into close contact. Then, the sleeve spacer is slid and fitted to the side of the hub. After that, the spacer bolt is screwed on to fix the sleeve spacer in a fixed position on the connecting shaft. The spin motor inside the spin power housing is then driven, causing the connecting shaft and the sealed auxiliary shaft to rotate using the auxiliary bearing. This causes the hub, which is inserted into the connecting shaft, to rotate continuously inside the sprayer housing. At this time, the spraying adjustment cycle structure will spray the rotating hub without dead angles, thus completing the hub spraying operation. The control panel on the sprayer housing can be used to operate the sprayer and adjust various parameters. The shock absorbers on the machine legs prevent the sprayer from being affected by vibration during operation, making the operation more stable.
[0007] Preferably, the spraying adjustment and circulation structure includes: a bottom suction pipe, a running infusion pump, a transmission pipe, a guide baffle, a filter screen, a top transfer chamber, a first electric slide rail, a first electric slider, a top spray head, a spray liquid distribution chamber, several distribution pipes, a pair of second electric slide rails, a pair of second electric sliders, and a pair of side spray heads.
[0008] The bottom suction pipe is installed inside the spraying machine housing and is connected to the operating infusion pump, which is mounted on the spraying machine housing. The transmission pipe is installed on the operating infusion pump and is connected to the top transfer chamber. The guide baffle is installed inside the spraying machine housing. The filter screen is installed inside the spraying machine housing and is connected to the guide baffle. The top transfer chamber is mounted on the spraying machine housing and is connected to the spraying liquid distribution chamber via a pipe. The first electric slide rail is installed inside the spraying machine housing. The first electric slider is mounted on the first electric slide rail, the top spray head is mounted on the first electric slider, the top spray head is connected to the liquid distribution pipe, the spray liquid distribution chamber is mounted on the spraying machine housing, a plurality of liquid distribution pipes are respectively connected to the spray liquid distribution chamber, and a plurality of liquid distribution pipes are respectively connected to a pair of side spray heads and the top spray head, a pair of second electric slide rails are respectively mounted inside the spraying machine housing, a pair of second electric sliders are respectively mounted on a pair of second electric slide rails, and a pair of side spray heads are respectively mounted on a pair of second electric sliders;
[0009] It should be noted that, as described above, the operation of the infusion pump draws the spraying liquid from the sprayer housing into the transmission pipe via the bottom suction pipe, which then flows into the top transfer chamber and is released to the spraying liquid distribution chamber. Finally, the liquid flows through three distribution pipes to a pair of side nozzles and the top spray nozzle. During this process, the first electric slide rail drives the first electric slider to move back and forth continuously, allowing the top spray nozzle to evenly spray the lower hub with spraying liquid. The pair of second electric sliders are driven by a pair of second electric slide rails, moving up and down, which in turn moves the pair of side nozzles up and down, ensuring that the hub is fully sprayed with spraying liquid. Excess spraying liquid flows to the guide baffle and finally to the filter screen. After filtration, it flows back to the bottom of the inside of the sprayer housing, thus creating a continuous cycle.
[0010] Preferably, the spraying machine housing is provided with an operation panel;
[0011] Preferably, the machine's outriggers are equipped with shock absorbers;
[0012] Preferably, the spin-powered housing is provided with a maintenance and inspection port;
[0013] Preferably, the paint sprayer housing is provided with a sealed door.
[0014] Beneficial effects
[0015] This utility model provides a wheel hub processing spraying machine. It offers the following advantages compared to existing technologies: This spraying machine utilizes a wheel hub locking structure, enabling it to flexibly adapt to and securely lock wheel hubs of various sizes. Under a precise drive mechanism, the wheel hub achieves continuous and stable rotation within the machine's housing. Furthermore, the machine is equipped with a spraying adjustment and circulation structure, ensuring efficient, comprehensive, and thorough spraying of the fixed wheel hubs. Notably, excess spraying liquid generated during the process can be effectively recycled and reused, significantly improving production cost savings and demonstrating high resource utilization efficiency and environmental awareness. Attached Figure Description
[0016] Figure 1 This is a front sectional view of the spraying machine for wheel hub processing described in this utility model.
[0017] Figure 2 for Figure 1 A magnified view of the letter "A" in the diagram.
[0018] Figure 3 for Figure 1 A magnified view of a portion of the letter "B".
[0019] In the diagram: 1. Sprayer housing; 2. Machine support legs; 3. Spinning power housing; 4. Spinning motor; 5. Connecting shaft; 6. Shaft partition; 7. Partition bolt; 8. Enclosed auxiliary shaft; 9. Telescopic positioning air rod; 10. Auxiliary bearing; 11. Bottom suction pipe; 12. Operating infusion pump; 13. Transmission pipeline; 14. Guide partition; 15. Filter screen; 16. Top transfer chamber; 17. First electric slide rail; 18. First electric slider; 19. Top spray head; 20. Spray liquid distribution chamber; 21. Distributor pipe; 22. Second electric slide rail; 23. Second electric slider; 24. Side spray head. Detailed Implementation
[0020] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0021] Those skilled in the art should connect all electrical components and their compatible power supplies in this case via wires. Appropriate controllers and encoders should be selected according to the actual situation to meet control requirements. The specific connection and control sequence should refer to the working principle described below, where the electrical components are connected in sequence. The detailed connection methods are well-known in the art. The following mainly introduces the working principle and process, and will not describe the electrical control further.
[0022] Example
[0023] The present invention will now be described in detail with reference to the accompanying drawings, such as... Figure 1-3As shown, a wheel hub processing spraying machine includes: a spraying machine housing 1, a pair of machine legs 2, and a spin-power housing 3. The spin-power housing 3 is mounted on the spraying machine housing 1, and the pair of machine legs 2 are respectively mounted on the spraying machine housing 1. A counter-impact wheel hub locking structure is installed inside the spraying machine housing 1, and a spraying adjustment and circulation structure is installed on the spraying machine housing 1. The counter-impact wheel hub locking structure includes: a spin motor 4, a connecting shaft 5, a sleeve shaft partition 6, a partition bolt 7, a closed auxiliary shaft 8, a telescopic positioning air rod 9, and an auxiliary bearing 10. The spin motor 4 is mounted inside the spin-power housing 3, and the connecting shaft 5 is inserted into the spraying machine housing 1 and connected to the spin motor 4. The sleeve shaft partition 6... The stop 6 is fitted on the outside of the connecting shaft 5, the stop bolt 7 is installed on the sleeve shaft stop 6 and the stop bolt 7 is connected to the connecting shaft 5, the closed auxiliary shaft 8 is installed on the telescopic positioning air rod 9, the telescopic positioning air rod 9 is installed on the auxiliary bearing 10, and the auxiliary bearing 10 is installed inside the spraying machine housing 1; the spraying adjustment and circulation structure includes: a bottom suction pipe 11, a running liquid pump 12, a transmission pipe 13, a guide partition 14, a filter screen 15, a top transfer chamber 16, a first electric slide rail 17, a first electric slider 18, a top spray head 19, a spraying liquid distribution chamber 20, several liquid distribution pipes 21, a pair of second electric slide rails 22, a pair of second electric sliders 23, and a pair of side spray heads 24;The bottom suction pipe 11 is installed inside the spraying machine housing 1 and is connected to the operating infusion pump 12. The operating infusion pump 12 is installed on the spraying machine housing 1. The transmission pipe 13 is installed on the operating infusion pump 12 and is connected to the top transfer chamber 16. The guide baffle 14 is installed inside the spraying machine housing 1. The filter screen 15 is installed inside the spraying machine housing 1 and is connected to the guide baffle 14. The top transfer chamber 16 is installed on the spraying machine housing 1 and is connected to the spraying liquid distribution chamber 20 via a pipe. The first electric slide rail 17 is installed on the spraying machine housing 1. Inside, the first electric slider 18 is mounted on the first electric slide rail 17, the top spray head 19 is mounted on the first electric slider 18, the top spray head 19 is connected to the liquid distribution pipe 21, the spray liquid distribution chamber 20 is mounted on the spraying machine housing 1, several liquid distribution pipes 21 are respectively connected to the spray liquid distribution chamber 20, and several liquid distribution pipes 21 are respectively connected to a pair of side spray heads 24 and the top spray head 19, a pair of second electric slide rails 22 are respectively mounted inside the spraying machine housing 1, a pair of second electric sliders 23 are respectively mounted on a pair of second electric slide rails 22, and a pair of side spray heads 24 are respectively mounted on a pair of second electric sliders 23.
[0024] According to the appendix Figure 1-3The process involves opening the sealed hatch on the sprayer housing 1, inserting the hub into the connecting shaft 5, and extending the telescopic positioning air rod 9. This causes the sealed auxiliary shaft 8 to fit tightly against the connecting shaft 5. The sleeve spacer 6 is then slid and fitted to the side of the hub. The spacer bolt 7 is then tightened to fix the sleeve spacer 6 in its fixed position on the connecting shaft 5. The self-rotating motor 4 inside the self-rotating power housing 3 is then driven, causing the connecting shaft 5 and the tightly fitted sealed auxiliary shaft 8 to rotate via the auxiliary bearing 10. This causes the hub, inserted into the connecting shaft 5, to continuously rotate within the sprayer housing 1. During this process, the spraying adjustment cycle structure performs thorough spraying of the rotating hub, completing the hub spraying operation. The control panel on the sprayer housing 1 allows operation of the sprayer and adjustment of various parameters. The shock absorbers on the machine legs 2 prevent the sprayer from being affected by vibrations during operation. This makes the operation more stable; the infusion pump 12 operates, so that the bottom suction pipe 11 draws the spraying liquid from the sprayer housing 1 into the transmission pipe 13, and then into the top transfer chamber 16, and then releases it into the spraying liquid distribution chamber 20. Finally, it flows from the three distribution pipes 21 to a pair of side nozzles 24 and the top spray nozzle 19 respectively. During this process, the first electric slide rail 17 drives the first electric slider 18 to move back and forth continuously, so that the top spray nozzle 19 can spray the hub below evenly with spraying liquid. The pair of second electric sliders 23 are driven by a pair of second electric slide rails 22 to move up and down, thereby driving the pair of side nozzles 24 to move up and down. Therefore, the hub is fully sprayed with spraying liquid. The excess spraying liquid flows to the guide baffle 14 and finally to the filter screen 15. After filtration, it flows back to the bottom of the inside of the sprayer housing 1, and then circulates.
[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A spray painting machine for wheel hub processing, comprising: A spraying machine housing (1), a pair of machine legs (2) and a spin-powered housing (3), characterized in that the spin-powered housing (3) is mounted on the spraying machine housing (1), the pair of machine legs (2) are respectively mounted on the spraying machine housing (1), a counter-impact hub locking structure is installed inside the spraying machine housing (1), and a spraying adjustment circulation structure is installed on the spraying machine housing (1); The impeller hub locking structure includes: a spin motor (4), a connecting shaft (5), a sleeve shaft partition (6), a partition bolt (7), a closed auxiliary shaft (8), a telescopic positioning air rod (9), and an auxiliary bearing (10). The spin motor (4) is installed inside the spin power housing (3). The connecting shaft (5) is inserted into the paint sprayer housing (1) and is connected to the spin motor (4). The sleeve shaft spacer (6) is fitted on the outside of the connecting shaft (5). The spacer bolt (7) is installed on the sleeve shaft spacer (6) and is connected to the connecting shaft (5). The closed auxiliary shaft (8) is installed on the telescopic positioning air rod (9). The telescopic positioning air rod (9) is installed on the auxiliary bearing (10). The auxiliary bearing (10) is installed inside the paint sprayer housing (1).
2. The spraying machine for wheel hub processing according to claim 1, characterized in that, The spraying adjustment and circulation structure includes: a bottom suction pipe (11), a running infusion pump (12), a transmission pipe (13), a guide baffle (14), a filter screen (15), a top transfer chamber (16), a first electric slide rail (17), a first electric slider (18), a top spray head (19), a spraying liquid distribution chamber (20), several distribution pipes (21), a pair of second electric slide rails (22), a pair of second electric sliders (23), and a pair of side spray heads (24); The bottom suction pipe (11) is installed inside the sprayer housing (1) and is connected to the operating infusion pump (12). The operating infusion pump (12) is installed on the sprayer housing (1). The transmission pipe (13) is installed on the operating infusion pump (12) and is connected to the top transfer chamber (16). The guide partition (14) is installed inside the sprayer housing (1). The filter screen (15) is installed inside the sprayer housing (1) and is connected to the guide partition (14). The top transfer chamber (16) is installed on the sprayer housing (1) and is connected to the spray liquid distribution chamber (20) via a pipe. The first electric slide rail (17) is installed on the sprayer housing. (1) Inside, the first electric slider (18) is installed on the first electric slide rail (17), the top spray head (19) is installed on the first electric slider (18), the top spray head (19) is connected to the liquid distribution pipe (21), the spray liquid distribution chamber (20) is installed on the spraying machine housing (1), a plurality of liquid distribution pipes (21) are respectively connected to the spray liquid distribution chamber (20), and a plurality of liquid distribution pipes (21) are respectively connected to a pair of side spray heads (24) and the top spray head (19), a pair of second electric slide rails (22) are respectively installed inside the spraying machine housing (1), a pair of second electric sliders (23) are respectively installed on a pair of second electric slide rails (22), and a pair of side spray heads (24) are respectively installed on a pair of second electric sliders (23).
3. A spraying machine for wheel hub processing according to claim 2, characterized in that, An operation panel is provided on the outer casing (1) of the spraying machine.
4. A spraying machine for wheel hub processing according to claim 3, characterized in that, The machine outrigger (2) is equipped with a shock absorber.
5. A spraying machine for wheel hub processing according to claim 4, characterized in that, The self-spinning power housing (3) is provided with a maintenance and inspection port.
6. A spraying machine for wheel hub processing according to claim 5, characterized in that, The spraying machine housing (1) is equipped with a closed door.