A cooling structure for spokes of an automobile wheel hub mold
By introducing a spoke upper mold, inlet pipe, and cooling groove structure into the automotive wheel hub mold, and combining air cooling and water cooling modes, the problem of uneven cooling was solved, thereby improving cooling uniformity and production efficiency and reducing the scrap rate.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- KUNSHAN HENGTE IND MASCH CO LTD
- Filing Date
- 2025-06-18
- Publication Date
- 2026-05-26
AI Technical Summary
The existing cooling method for automotive wheel hub mold spokes is slow and uneven, leading to problems such as shrinkage cavities and scrapping, as well as aluminum sticking due to slow cooling during engraving.
It adopts a structure of upper mold for spokes, inlet and outlet pipes, cooling grooves and cover plates, and combines air cooling and water cooling modes. The flow rate of cooling medium in each spoke area is precisely controlled by inlet and outlet pipes in conjunction with circular pipes and valves to ensure cooling uniformity and efficiency.
It improves cooling uniformity and efficiency, reduces scrap rate, supports modular maintenance, facilitates individual disassembly and repair, and reduces production costs.
Smart Images

Figure CN224273256U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wheel hub mold technology, specifically to a cooling structure for spokes of an automobile wheel hub mold. Background Technology
[0002] Spokes are wheel spokes, commonly used on bicycle, motorcycle, or car wheels. They support the wheel and transmit power. Spokes are usually made of metal and have sufficient strength and toughness to support the weight and force the wheel bears during operation. Because car wheel rims vary in style, the shape and size of the spokes also vary. Figure 7 - Figure 8 illustrate.
[0003] like Figures 1 to 2 As shown, the existing automotive wheel hub mold spoke cooling usually adopts the traditional air blowing cooling method, that is, the mold spokes are cooled by a single-channel air blowing with one inlet and one outlet. The traditional air blowing cooling method is prone to problems such as slow and uneven cooling, resulting in shrinkage cavities and scrapping, and slow cooling of the spoke engraving and aluminum sticking, which lead to scrapping and make it inconvenient to use.
[0004] In view of this, we have introduced a cooling structure for automotive wheel hub mold spokes. Utility Model Content
[0005] The purpose of this invention is to provide a cooling structure for the spokes of an automobile wheel hub mold, so as to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a cooling structure for spokes of an automobile wheel hub mold, comprising: an upper mold for the spokes, an inlet pipe, and a cooling groove;
[0007] The upper mold of the wheel spoke is provided with a circular tube A inside, and an inlet tube is provided on one side of the top of the circular tube A;
[0008] The inlet and outlet pipes are evenly spaced at the bottom of the circular pipe A, and the inlet and outlet pipes extend into the interior of the upper mold of the wheel spoke;
[0009] The cooling grooves are evenly spaced inside the upper mold of the wheel spoke. The upper mold of the wheel spoke is cooled by the cooperation of the cover plate of the cooling structure and the circular tube B.
[0010] Preferably, the cooling structure includes an inlet on the surface of a cover plate, which is integrally formed with the cover plate or can be perforated. The cover plate is connected to the inside of the cooling tank and is fixed to the opening of the cooling tank by welding or fasteners to form a closed cooling channel, which is convenient for maintenance and cleaning. An outlet is provided on the other side of the surface of the cover plate, which is integrally formed with the cover plate or can be perforated. A branch pipe is provided inside the outlet, and a circular pipe B is connected to the top of the branch pipe. A discharge pipe is connected to the top of the circular pipe B.
[0011] Preferably, the upper die of the spoke has an arc-shaped groove inside for installing the circular tube A and the circular tube B, and the arc-shaped groove and the upper die of the spoke are integrally formed.
[0012] Preferably, one end of the inlet pipe is connected to a valve A, and one side of the valve A is provided with a threaded part, which can be connected to an external pipe or other component for easy use.
[0013] Preferably, one end of the discharge pipe is connected to a valve B, and one side of the valve B is provided with a threaded part, which can be connected to an external pipe or other component for easy use.
[0014] Preferably, the upper mold of the spokes has a hub body inside, and spokes are connected at equal intervals on the surface of the hub body. The spokes are used to increase the strength of the hub body.
[0015] Preferably, the surface of the wheel hub body is provided with a window, which not only enhances the aesthetics but also reduces the weight of the wheel hub body.
[0016] Preferably, the surface of the spokes has engraved characters.
[0017] Compared with the prior art, the beneficial effects of this utility model are:
[0018] (1) By closely adhering the cooling groove to the back of the spoke, the heat conduction path is shortened. The inlet and outlet pipes, together with circular pipes A and B and valves A and B, can precisely control the flow rate of the cooling medium in each spoke area, ensuring that the cooling rate of each spoke is consistent and achieving uniform cooling. Cooling air or water is discharged through the outlet pipe. It is low-cost, convenient to manufacture, and the cooling effect can be adjusted by the flow valve. It is uniformly cooled and the cooling medium can be either air-cooled or water-cooled. It can greatly improve production efficiency and reduce scrap.
[0019] (2) By supporting both air cooling and water cooling modes: air cooling is suitable for precision engraving parts that are sensitive to temperature, avoiding the sudden cooling cracks that may be caused by water cooling; water cooling is suitable for thick spokes with high thermal conductivity requirements, improving overall cooling efficiency.
[0020] (3) The modular design facilitates maintenance. When a single spoke cooling unit is damaged, the cover plate can be disassembled independently for repair without replacing the entire mold. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of a spoke cooling structure in the prior art;
[0022] Figure 2 This is a schematic diagram of the structure of a spoke cooling pipe in the prior art;
[0023] Figure 3 This is a schematic diagram of the structure of this utility model;
[0024] Figure 4 This is a schematic diagram of the structure of the upper mold of the wheel spoke of this utility model;
[0025] Figure 5 This is a schematic diagram of the three-dimensional connection of the circular tube A, the circular tube B, and the cover plate of this utility model;
[0026] Figure 6 This is a schematic diagram of the structure of the cover plate of this utility model;
[0027] Figure 7 This is a schematic diagram of the structure of the wheel hub body of this utility model;
[0028] Figure 8 This is a schematic diagram of another type of wheel hub body according to the present invention.
[0029] In the diagram: 1. Upper die of spoke; 2. Inlet pipe; 3. Outlet pipe; 4. Circular pipe A; 5. Inlet branch pipe; 6. Cooling groove; 7. Arc groove; 8. Valve A; 9. Valve B; 10. Circular pipe B; 11. Cover plate; 12. Outlet branch pipe; 13. Inlet; 14. Outlet; 15. Hub body; 16. Spoke; 17. Window; 18. Engraving section. Detailed Implementation
[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0031] Please see Figure 3-8 This utility model provides a technical solution: a cooling structure for spokes of an automobile wheel hub mold, comprising: an upper mold 1 for the spokes, wherein a circular tube A4 is provided inside the upper mold 1 for the spokes, and an inlet tube 2 is provided on one side of the top of the circular tube A4;
[0032] The inlet and branch pipes 5 are evenly spaced at the bottom of the circular pipe A4. The inlet and branch pipes 5 and the circular pipe A4 are integrally formed. The inlet and branch pipes 5 extend into the interior of the upper mold 1 of the wheel spoke.
[0033] Cooling groove 6 is equally spaced inside the upper mold 1 of the wheel spoke. The cooling groove 6 and the upper mold 1 of the wheel spoke are integrally formed. The cooling groove 6 is provided with a cooling structure inside. The upper mold 1 of the wheel spoke is cooled by the cooperation of the cover plate 11 and the circular tube B10 of the cooling structure.
[0034] The cooling structure includes an inlet 13 on the surface of a cover plate 11. The inlet 13 and the cover plate 11 are integrally formed or can be perforated. The cover plate 11 is connected to the inside of the cooling tank 6 and is fixed to the opening of the cooling tank 6 by welding or fasteners to form a closed cooling channel, which is convenient for maintenance and cleaning. An outlet 14 is provided on the other side of the surface of the cover plate 11. The outlet 14 is integrally formed or can be perforated. A branch pipe 12 is provided inside the outlet 14. A circular pipe B10 is connected to the top of the branch pipe 12, and a discharge pipe 3 is connected to the top of the circular pipe B10.
[0035] The upper mold 1 of the spoke has an arc-shaped groove 7 inside for installing the circular tube A4 and the circular tube B10. The arc-shaped groove 7 and the upper mold 1 of the spoke are integrally formed.
[0036] One end of the inlet pipe 2 is connected to a valve A8. One side of the valve A8 is provided with a threaded part, which can be connected to an external pipe or other component for easy use.
[0037] One end of the discharge pipe 3 is connected to a valve B9. One side of the valve B9 is provided with a threaded part, which can be connected to an external pipe or other component for easy use.
[0038] The upper mold 1 of the spokes has a hub body 15 inside, and spokes 16 are connected at equal intervals on the surface of the hub body 15. The spokes 16 are used to increase the strength of the hub body 15.
[0039] The surface of the wheel hub 15 is provided with a window 17. The window 17 is used to increase the aesthetics and reduce the weight of the wheel hub 15.
[0040] The surface of the spoke 16 is provided with engravings 18.
[0041] Specifically, during use, the cooling medium (water or air) flows in from the inlet pipe 2, and after the total flow rate is regulated by the valve A8, it enters the circular pipe A4 inside the upper mold 1 of the wheel spoke. The circular pipe A4 serves as the main distribution pipe, which evenly distributes the cooling medium to the inlet and branch pipes 5 that are set at equal intervals at the bottom. The inlet and branch pipes 5 extend into the interior of the upper mold 1 of the wheel spoke (i.e., the interior of the cover plate 11 and the cooling groove 6), directly corresponding to the position of the wheel hub spoke 16, and delivers the cooling medium to the inlet 13 of the cover plate 11 in the cooling groove 6.
[0042] The cooling tank 6 is a conformal groove opened inside the upper mold 1 of the spoke. Its shape matches the contour of the back of the spoke 16, ensuring that the cooling medium is close to the area of the spoke 16. The cooling medium enters the cooling tank 6, which is closed by the cover plate 11, through the inlet 13. It exchanges heat with the upper mold 1 of the spoke in the tank and absorbs the heat generated during the casting process of the spoke 16. The medium after heat exchange flows out from the outlet 14 on the other side of the cover plate 11, flows into the circular pipe B10 through the branch pipe 12, and finally exits the system through the discharge pipe 3 and valve B9.
[0043] The valves A8 and B9 installed on the inlet pipe 2 and outlet pipe 3 respectively can independently adjust the total flow rate of the cooling medium. The flow-diversion design of the circular pipe A4 and the inlet branch pipe 5 ensures that the cooling groove 6 corresponding to each spoke 16 receives an equal flow rate of cooling medium. Similarly, the flow-merging design of the outlet branch pipe 12 and the circular pipe B10 ensures that the medium pressure of each channel is balanced, avoiding cooling differences caused by uneven flow.
[0044] The arc-shaped groove 7 inside the upper mold 1 of the wheel spoke provides installation space for the circular tubes A4 and B10. The arc design fits the shape of the pipes, ensuring that the pipes are tightly connected to the mold body and reducing heat loss when the cooling medium flows. The cover plate 11 is fixed to the opening of the cooling groove 6 by welding or fasteners, forming a closed cooling channel, which is also convenient for maintenance and cleaning.
[0045] 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 cooling structure for spokes of an automobile wheel hub mold, characterized in that, include: A spoke upper mold (1) is provided inside the spoke upper mold (1), and an inlet pipe (2) is provided on one side of the top of the circular tube A (4); The inlet pipe (5) is evenly spaced at the bottom of the circular pipe A (4) and extends into the interior of the upper mold (1) of the spoke; Cooling grooves (6) are equally spaced inside the upper mold (1) of the wheel spoke. The cooling grooves (6) are equipped with a cooling structure. The upper mold (1) of the wheel spoke is cooled by the cooperation of the cover plate (11) and the circular tube B (10) of the cooling structure.
2. The automotive wheel hub mold spoke cooling structure according to claim 1, characterized in that, The cooling structure includes an inlet (13) on the surface of a cover plate (11), the cover plate (11) being connected to the inside of the cooling groove (6), an outlet (14) on the other side of the surface of the cover plate (11), a branch pipe (12) being provided inside the outlet (14), a circular pipe B (10) being connected to the top of the branch pipe (12), and a discharge pipe (3) being connected to the top of the circular pipe B (10).
3. The automotive wheel hub mold spoke cooling structure according to claim 1, characterized in that, The upper mold (1) of the spoke has an arc-shaped groove (7) for installing the circular tube A (4) and the circular tube B (10).
4. The automotive wheel hub mold spoke cooling structure according to claim 1, characterized in that, One end of the inlet pipe (2) is connected to a valve A (8).
5. The automotive wheel hub mold spoke cooling structure according to claim 2, characterized in that, One end of the discharge pipe (3) is connected to a valve B (9).
6. The automotive wheel hub mold spoke cooling structure according to claim 1, characterized in that, The upper mold (1) of the spokes has a hub body (15) inside, and spokes (16) are connected at equal intervals on the surface of the hub body (15).
7. The automotive wheel hub mold spoke cooling structure according to claim 6, characterized in that, The surface of the hub body (15) is provided with a window (17).
8. The automotive wheel hub mold spoke cooling structure according to claim 6, characterized in that, The surface of the spokes (16) is provided with engravings (18).