A cooling structure for the flange area of ​​a wheel hub mold

Abstract

This utility model relates to the field of aluminum alloy wheel casting technology and discloses a cooling structure for the flange area of ​​a wheel mold. It includes a mold body with several cooling holes corresponding to the flange area of ​​the wheel casting. Cooling components are provided for each cooling hole, including cooling pipes inserted into the cooling holes. These cooling pipes are connected to cooling channels, supplying cooling water mist to the pipes. The cooling pipes spray the cooling water mist into the cooling holes, achieving efficient cooling of the flange area. This utility model cools the flange area of ​​the wheel casting using cooling water mist. Compared to air cooling, cooling water mist significantly improves cooling intensity and is easier to control precisely than water cooling. It improves upon the insufficient cooling intensity of traditional single air cooling and the overcooling problem of single water cooling. It improves cooling efficiency while ensuring product quality. Furthermore, it eliminates the need for large-area water cooling pipe installation, avoiding the risk of leakage.

Description

Technical Field

[0001] This utility model relates to the field of aluminum alloy wheel hub casting technology, and in particular to a cooling structure for the flange area of ​​a wheel hub mold. Background Technology

[0002] With the development of the aluminum alloy wheel industry, cost reduction and efficiency improvement have become crucial issues that wheel manufacturers must address. In the aluminum alloy wheel casting process, the design of the cooling process directly affects casting efficiency and product quality. The wheel flange is a key load-bearing component connecting the axle and the wheel hub. Its structure typically includes densely packed bolt holes and thickened wall areas, making it prone to forming localized high-temperature zones (hot spots) during casting. Insufficient cooling or improper temperature gradient control can lead to coarse grains, shrinkage porosity, or residual stress concentration in the flange area, directly affecting the wheel hub's fatigue strength and dimensional accuracy.

[0003] Currently, the cooling methods for the wheel hub flange area in wheel hub casting molds typically include air cooling and water cooling. Among them, air cooling has insufficient cooling intensity and a long cooling cycle, which restricts the improvement of production efficiency and also has an adverse effect on the microstructure and density of the casting. Water cooling has the advantage of high cooling intensity, but it is difficult to control precisely, is prone to overcooling, and the large-area deployment of water cooling increases the risk of water leakage.

[0004] Therefore, developing a cooling structure for the flange area of ​​a wheel hub mold for practical production is an urgent problem to be solved. Utility Model Content

[0005] The purpose of this utility model is to address the above-mentioned problems by providing a cooling structure for the flange area of ​​a wheel hub mold, so as to solve the problems of insufficient cooling intensity and low efficiency of air cooling and the difficulty in precise control of water cooling, which is prone to overcooling in the existing wheel hub mold cooling methods.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] A cooling structure for the flange area of ​​a wheel hub mold includes a mold body. The mold body has several cooling holes corresponding to the flange area of ​​the wheel hub casting. A cooling assembly is provided corresponding to the cooling holes. The cooling assembly includes a cooling pipe inserted into the cooling hole. The cooling pipe is connected to a cooling channel and a cooling water mist is supplied to the cooling pipe. The cooling pipe sprays the cooling water mist into the cooling hole to achieve efficient cooling of the flange area.

[0008] Preferably, the cooling assembly further includes a water mist box that connects the cooling channel and the cooling pipe respectively. The water mist box is a box structure with a hollow cavity, serving as a pressurization and diversion structure for the cooling water mist.

[0009] Preferably, the cooling channel includes a water source channel connected to a cooling water source and an air source channel connected to a high-pressure air source. The air source channel is a variable diameter pipe, and the smaller diameter section of the air source channel is connected to the water source channel.

[0010] Preferably, the cooling channel consists of multiple interconnected water mist boxes, providing multiple channels for cooling water mist to enter the water mist boxes, thereby increasing the flow rate of cooling water mist into the water mist boxes and improving cooling efficiency.

[0011] Preferably, the cooling channel includes a water source channel connected to a cooling water source and an air source channel connected to a high-pressure air source. The water source channel is connected to the water mist box from the top, and the air source channel is connected to the water mist box from the bottom.

[0012] Preferably, the water source channel is connected to the water mist box via an atomizing nozzle.

[0013] The beneficial effects of this utility model are as follows:

[0014] This invention uses cooling water mist to cool the flange area of ​​the wheel hub casting. Compared to air cooling, the cooling water mist significantly improves the cooling intensity and is easier to control precisely than water cooling. It overcomes the insufficient cooling intensity of traditional single air cooling and the overcooling problem that can easily occur with single water cooling. It improves cooling efficiency while ensuring product quality. Furthermore, it eliminates the need for extensive water cooling piping, avoiding the increased risk of leakage. Attached Figure Description

[0015] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0016] Figure 1 This is a structural diagram of the present invention in use.

[0017] Figure 2-3 This is a schematic diagram of the cooling component in this utility model.

[0018] In the diagram: 10--Mold body; 11--Cooling hole; 21--Cooling pipe; 22--Cooling channel; 221--Water source channel; 222--Air source channel; 223--Small diameter section; 23--Water mist box; 231--Hollow cavity; 24--Atomizing nozzle. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] like Figure 1-3As shown, a cooling structure for the flange area of ​​a wheel hub mold includes a mold body 10. The mold body 10 has several cooling holes 11 corresponding to the flange area of ​​the wheel hub casting. Cooling components are provided corresponding to the cooling holes 11 for cooling the flange area. The cooling components include cooling pipes 21 inserted into the cooling holes 11. The cooling pipes 21 are connected to cooling channels 22, supplying cooling water mist to the cooling pipes 21. The cooling pipes 21 spray the cooling water mist into the cooling holes 11, achieving efficient cooling of the flange area. This embodiment cools the flange area of ​​the wheel hub casting using cooling water mist. Compared to air cooling, cooling water mist significantly improves cooling intensity and is easier to control precisely than water cooling. It improves upon the insufficient cooling intensity of traditional single air cooling and the overcooling problem of single water cooling. It improves cooling efficiency while ensuring product quality. It also eliminates the need for large-area water cooling pipe laying, avoiding the risk of leakage.

[0021] In a preferred embodiment, the cooling assembly further includes a water mist box 23 that connects the cooling channel 22 and the cooling pipe 21. The water mist box 23 is a box structure with a hollow cavity 231, serving as a pressurization and diversion structure for the cooling water mist. In use, the cooling water mist supplied by the cooling channel 22 is fed into the water mist box 23 and pressurized in the hollow cavity of the water mist box 23. The mist is then sprayed through the cooling pipe 21 into the cooling hole 11 to cool the flange area.

[0022] As a preferred embodiment, such as Figure 2 As shown, cooling water mist is formed in the cooling channel 22. Specifically, the cooling channel 22 includes a water source channel 221 connected to a cooling water source and an air source channel 222 connected to a high-pressure air source. The air source channel 222 is a variable-diameter pipe, with the smaller diameter section 223 connected to the water source channel 221. In use, the high-pressure air source supplies high-pressure air to the air source channel 222. When the high-pressure air flows through the smaller diameter section 223 of the air source channel 222, the reduced pipe diameter increases the airflow velocity, creating a negative pressure that draws the cooling water from the water source channel 221 into the air source channel 222. The cooling water then forms cooling water mist under the spraying action of the high-pressure air. This embodiment utilizes the Venturi principle to achieve automatic cooling water supply, eliminating the hassle of configuring water pressure for the cooling water source. Furthermore, the cooling water supply is adaptively adjusted according to the air pressure, ensuring the stability of the cooling water mist supply.

[0023] Preferably, the cooling channel 22 comprises multiple interconnected water mist boxes 23, providing multiple channels for cooling water mist to enter the water mist boxes 23, thereby increasing the flow rate of cooling water mist into the water mist boxes 23 and improving cooling efficiency. Simultaneously, the multiple cooling water mists undergo secondary atomization and mixing within the water mist boxes 23, improving the atomization effect and uniformity of the cooling water mist.

[0024] As another implementation method, such as Figure 3 As shown, cooling water mist is formed in the water mist box 23. Specifically, the cooling channel 22 includes a water source channel 221 connecting to the cooling water source and an air source channel 222 connecting to the high-pressure air source. The water source channel 221 connects to the top of the water mist box 23, and the air source channel 222 connects to the bottom of the water mist box 23. In use, cooling water supplied by the water source channel 221 enters the water mist box 23 and, under the blowing action of the high-pressure air supplied by the air source channel 222, forms cooling water mist, which is then sprayed through the cooling pipe 21 to the cooling hole 11 for cooling and temperature reduction.

[0025] Preferably, the water source channel 221 is connected to the water mist box 23 through the atomizing nozzle 24. The atomizing nozzle 24 can atomize the cooling water supplied by the water source channel 221 to form cooling water mist. The high-pressure air supplied by the air source channel 222 will atomize and mix the cooling water mist a second time, and then spray it to the cooling hole 11 through the cooling pipe 21.

[0026] The above-disclosed embodiments are merely specific examples of this utility model, but this utility model is not limited thereto. For those skilled in the art, any modifications made without departing from the principle of this utility model should be considered as protected by this utility model.

Claims

1. A wheel hub mold flange area cooling structure characterized by: The system includes a mold body (10), on which several cooling holes (11) are provided corresponding to the flange area of ​​the wheel hub casting. A cooling assembly is provided corresponding to the cooling holes (11). The cooling assembly includes a cooling pipe (21) inserted into the cooling hole (11). The cooling pipe (21) is connected to a cooling channel (22) and a cooling water mist is supplied to the cooling pipe (21). The cooling pipe (21) sprays the cooling water mist into the cooling hole (11) to achieve efficient cooling of the flange area. The cooling assembly also includes a water mist box (23) that connects the cooling channel (22) and the cooling pipe (21) respectively. The water mist box (23) is a box structure with a hollow cavity (231); the cooling channel (22) includes a water source channel (221) connected to the cooling water source and an air source channel (222) connected to the high-pressure air source. The air source channel (222) is a variable diameter pipe, and the small diameter part (223) of the air source channel (222) is connected to the water source channel (221); the cooling channel (22) is connected to the water mist box (23) by multiple channels, providing multiple channels for cooling water mist to enter the water mist box (23); the water source channel (221) is connected to the water mist box (23) through an atomizing nozzle (24).

2. A wheel hub mold flange area cooling structure as defined in claim 1, wherein: The cooling channel (22) includes a water source channel (221) connected to a cooling water source and an air source channel (222) connected to a high-pressure air source. The water source channel (221) is connected to the top of the water mist box (23) and the air source channel (222) is connected to the bottom of the water mist box (23).

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