Rotary air knife mechanism for hub blowing
By designing a rotary air knife mechanism to specifically dry aluminum alloy wheel hubs, the problem of cleaning fluid residue was solved, achieving a stable and effective drying effect, and improving production safety and efficiency.
Patent Information
- Application Number
- CN202520495861.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-20
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-03-20
AI Technical Summary
In existing technologies, the cleaning fluid remaining after cleaning aluminum alloy wheel hubs cannot be completely dried, leading to equipment rust and increased safety risks, and the purging method lacks specificity.
A rotary air knife mechanism was designed, including a support frame, an air supply flange pipe, an air knife, and a drive motor. The rotating air knife is used to target and clean the wheel hub, and the high-speed air is used to effectively dry the surface of the wheel hub.
It achieves stable and targeted drying of wheel hubs, avoiding equipment rust and safety risks caused by residual cleaning fluid, and improving the safety and efficiency of the production process.
Smart Images

Figure CN223896423U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive wheel hub cleaning and drying, specifically a rotary air knife mechanism for wheel hub blowing. Background Technology
[0002] As a crucial component of automobiles, wheels play a vital role in the entire automobile production process. However, on automated aluminum alloy wheel production lines, after cleaning, a significant amount of cleaning fluid remains on the wheel surface. Incomplete cleaning fluid removal can lead to rusting of subsequent equipment, and dripping cleaning fluid increases safety risks. Current cleaning methods are mostly continuous pass-through cleaning, which lacks specificity and cannot effectively dry the cleaning fluid completely from the wheel hub. Utility Model Content
[0003] The purpose of this invention is to provide a rotary air knife mechanism for cleaning wheel hubs, so as to dry the cleaned wheel hubs.
[0004] The technical solution adopted by this utility model to solve its technical problem is as follows:
[0005] The rotary air knife mechanism for hub purging includes a support frame mounted above the conveyor rollers. A mounting plate is connected to the side of the support frame. A top plate is bolted to the upper side of the mounting plate, and a bottom plate is bolted to the lower side of the mounting plate. An air supply flange pipe is mounted on the upper side of the top plate. A hollow flange shaft is mounted below the air supply flange pipe, and a "gate-shaped" air knife is bolted below the hollow flange shaft. The air supply flange pipe and the hollow flange shaft have the same axis. The connection between the "gate-shaped" air knife and the hollow flange shaft is a through hole. A flange seat is mounted below the bottom plate, and the flange seat has the same axis as the hollow flange shaft. An angular contact ball bearing and a deep groove ball bearing are mounted between the flange seat and the hollow flange shaft. The angular contact ball bearing is located above the deep groove ball bearing. The flange seat is mounted at a connection hole below the bottom plate.
[0006] Furthermore, the driven wheel is fixed on the upper side of the hollow flange shaft, and a transmission belt is wrapped around the driven wheel and the driving wheel. The driving wheel is connected to the output shaft of the drive motor.
[0007] Furthermore, a nylon sleeve is installed at the end of the air supply flange pipe, the nylon sleeve coincides with the axis of the air supply flange pipe, and the lower end of the nylon sleeve is inserted into the inner side of the hollow flange shaft with a gap.
[0008] Furthermore, the gland is located below the flange seat, the gland supports the outer ring of the deep groove ball bearing, and the upper end of the angular contact ball bearing is provided with a positioning sleeve, which is fixedly connected to the hollow flange shaft.
[0009] Furthermore, the "gate-shaped" air knife includes a hollow square tube and an air nozzle.
[0010] Compared with existing technologies, this online deburring equipment for aluminum alloy wheels has advantages such as stable structure, effective targeted cleaning of the wheel hub, and smooth operation. Attached Figure Description
[0011] Appendix Figure 1 This is the front view of this utility model.
[0012] Appendix Figure 2 It is attached Figure 1 A partial sectional view.
[0013] Appendix Figure 3 This is a top view of the present invention.
[0014] Reference numerals: 1. Support frame; 2. "Gate-shaped" air knife; 201. Air nozzle; 202. Hollow square tube; 3. Conveyor roller; 4. Drive motor; 5. Drive wheel; 6. Angular contact ball bearing; 7. Flange seat; 8. Deep groove ball bearing; 9. Air supply flange pipe; 10. Top plate; 11. Nylon sleeve; 12. Driven wheel; 13. Base plate; 14. Positioning bushing; 15. Pressure cap; 16. Hollow flange shaft; 17. Drive belt; 18. Mounting plate. Detailed Implementation
[0015] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of the utility model will be more thorough and complete.
[0016] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0017] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0018] In this utility model, unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," "fixed," "provided with," and "located in" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.
[0020] As attached Figure 1 - Appendix Figure 2 As shown, this embodiment includes a support frame 1, which is installed above the conveyor roller 3. An mounting plate 18 is connected to the side of the support frame 1. A top plate 10 is bolted to the upper side of the mounting plate 18, and a bottom plate 13 is bolted to the lower side of the mounting plate 18. An air supply flange pipe 9 is installed on the upper side of the top plate 10. A hollow flange shaft 16 is installed below the air supply flange pipe 9. A "gate-shaped" air knife 2 is bolted below the hollow flange shaft 16. The air supply flange pipe 9 and the hollow flange shaft 16 are aligned. The connection between the "gate-shaped" air knife 2 and the hollow flange shaft 16 is a through hole. A flange seat 7 is installed below the bottom plate 13, and the flange seat 7 is aligned with the hollow flange shaft 16. An angular contact ball bearing 6 and a deep groove ball bearing 8 are installed between the flange seat 7 and the hollow flange shaft 16. The angular contact ball bearing 6 is located above the deep groove ball bearing 8. The flange seat 7 is installed at the connection hole below the bottom plate 13.
[0021] In the above scheme, the driven wheel 12 is fixed on the upper side of the hollow flange shaft 16, and a transmission belt 17 is wrapped around the driven wheel 12 and the driving wheel 5. The driving wheel 5 is connected to the output shaft of the drive motor 4.
[0022] In the above scheme, a nylon sleeve 11 is installed at the end of the air supply flange pipe 9. The nylon sleeve 11 is axially aligned with the air supply flange pipe 9. The lower end of the nylon sleeve 11 is inserted into the inner side of the hollow flange shaft 16 with a gap.
[0023] In the above scheme, the pressure cap 15 is located below the flange seat 7. The pressure cap 15 supports the outer ring of the deep groove ball bearing 8. The upper end of the angular contact ball bearing 6 is provided with a positioning bushing 14, which is fixedly connected to the hollow flange shaft 16.
[0024] In the above scheme, the "gate-shaped" air knife 2 includes a hollow square tube 202 and an air nozzle 201.
[0025] Workflow: After cleaning, the wheel hub is conveyed to the purging station via the conveyor roller 3. A high-speed air supply is connected to the upper side of the air supply flange pipe 9. The high-speed air is conveyed through the hollow flange shaft 16 to the hollow square tube 202 of the "gate-shaped" air knife 2, and then blown onto the top and sides of the wheel hub through the air nozzle 201. At the same time, the drive motor 4 drives the drive wheel 12 to rotate, and the transmission belt 17 drives the driven wheel 12 to rotate. The driven wheel 12 drives the hollow flange shaft 16 and the "gate-shaped" air knife 2 to rotate, so that the "gate-shaped" air knife 2 rotates around the wheel hub and purifies it. Finally, the "gate-shaped" air knife 2 rotates to its original position, and the conveyor roller 3 conveys the wheel hub out of the purging station.
[0026] The above-described embodiments are merely illustrative of certain implementations of this utility model, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A rotary air knife mechanism for hub purging, characterized in that: Includes a support frame (1), which is installed above the conveyor roller (3). The support frame (1) is connected to a mounting plate (18) on its side. A top plate (10) is bolted to the upper side of the mounting plate (18), and a bottom plate (13) is bolted to the lower side of the mounting plate (18). An air supply flange pipe (9) is installed on the upper side of the top plate (10). A hollow flange shaft (16) is installed below the air supply flange pipe (9). A "gate-shaped" air knife (2) is bolted below the hollow flange shaft (16). The air supply flange pipe (9) and the hollow flange shaft (16) are aligned. The connection between the "gate-shaped" air knife (2) and the hollow flange shaft (16) is a through hole.
2. The rotary air knife mechanism for hub purging according to claim 1, characterized in that: The flange seat (7) is installed below the base plate (13). The flange seat (7) coincides with the axis of the hollow flange shaft (16). An angular contact ball bearing (6) and a deep groove ball bearing (8) are installed between the flange seat (7) and the hollow flange shaft (16). The angular contact ball bearing (6) is located on the upper side of the deep groove ball bearing (8). The flange seat (7) is installed at the connection hole below the base plate (13).
3. The rotary air knife mechanism for hub purging according to claim 1, characterized in that: The driven wheel (12) is fixed on the upper side of the hollow flange shaft (16), and a transmission belt (17) is wrapped around the driven wheel (12) and the driving wheel (5). The driving wheel (5) is connected to the output shaft of the drive motor (4).
4. A rotary air knife mechanism for hub purging according to claim 1, characterized in that: A nylon sleeve (11) is installed at the end of the air supply flange pipe (9). The nylon sleeve (11) is axially aligned with the air supply flange pipe (9). The lower end of the nylon sleeve (11) is inserted into the inner side of the hollow flange shaft (16) with a gap.
5. A rotary air knife mechanism for hub purging according to claim 2, characterized in that: The gland (15) is located below the flange seat (7). The gland (15) supports the outer ring of the deep groove ball bearing (8). The upper end of the angular contact ball bearing (6) is provided with a positioning bushing (14). The positioning bushing (14) is fixedly connected to the hollow flange shaft (16).
6. A rotary air knife mechanism for hub purging according to claim 1, characterized in that: The "gate-shaped" air knife (2) includes a hollow square tube (202) and an air nozzle (201).