Nodular cast iron heavy truck wheel hub

Abstract

The utility model relates to a nodular cast iron heavy truck wheel hub belongs to truck wheel hub technical field, including the rim, the rim one side is connected with the connecting support plate, and the connecting support plate is round table shape, and the lateral wall of connecting support plate is evenly distributed with a plurality of radiating fins and radiating hole, the utility model discloses nodular cast iron heavy truck wheel hub sets up radiating fin through, increases the radiating area of wheel hub, sets up radiating hole simultaneously, utilizes the airflow of wheel rotation and takes away the heat, and the working temperature of wheel hub is reduced fast, the utility model discloses can avoid the heat accumulation in the wheel hub and causes the thermal fatigue crack, guarantees the safety of vehicle travel.

Description

Technical Field

[0001] This utility model relates to a ductile iron heavy-duty truck wheel hub, belonging to the field of truck wheel hub technology. Background Technology

[0002] Ductile iron heavy-duty truck wheel hubs refer to wheel hubs made of ductile iron material used in heavy-duty trucks. In construction sites, mines, and other engineering projects, heavy-duty trucks need to operate in harsh road conditions, such as muddy roads and rugged mountain roads. Truck wheel hubs must adapt to these complex working conditions, withstand significant impacts and vibrations, and ensure the normal operation of the vehicle.

[0003] However, when heavy trucks are going downhill on long slopes and braking frequently (such as on mountain roads), the friction between the brake pads and the wheel hub will generate a lot of heat. Since the thermal conductivity of ductile iron is much lower than that of aluminum alloy, heat is easy to accumulate inside the wheel hub. When the vehicle is driving for a long time, the wheel hub temperature will become too high, causing the material's yield strength and toughness to decrease. This may lead to thermal fatigue cracks or even wheel hub deformation, affecting safety. Utility Model Content

[0004] In view of the shortcomings of the prior art, the technical problem to be solved by this utility model is to provide a ductile iron heavy-duty truck wheel hub that facilitates heat dissipation, avoids heat accumulation inside the wheel hub causing thermal fatigue cracks, and ensures the safety of vehicle operation.

[0005] The ductile iron heavy-duty truck wheel hub of this utility model includes a rim, a connecting support plate connected to one side of the rim, the connecting support plate is frustum-shaped, and a number of heat dissipation fins and heat dissipation holes are evenly distributed on the side wall of the connecting support plate.

[0006] The technical solution of this utility model is to provide a ductile iron heavy truck wheel hub, which is provided with heat dissipation fins to increase the heat dissipation area of ​​the wheel hub, and heat dissipation holes are provided to use the airflow when the wheel rotates to carry away heat and quickly reduce the working temperature of the wheel hub.

[0007] Preferably, the rim has flanges on both sides for limiting the tire position.

[0008] Preferably, the outer end face of the connecting support plate is provided with a central positioning hole, which is used to accurately position the wheel hub and the axle head during installation; a number of bolt holes are evenly distributed around the central positioning hole for inserting bolts to fix and connect with the axle.

[0009] Preferably, the number of heat dissipation fins between two adjacent heat dissipation holes is two.

[0010] Preferably, the connecting support plate is further provided with a number of reinforcing ribs evenly distributed on its sidewall. The bottom edge of the reinforcing rib is connected to the sidewall of the connecting support plate, and the side edge of the reinforcing rib is connected to the wheel flange. The reinforcing rib is located between two adjacent heat dissipation fins. The reinforcing rib can not only improve the wheel hub's ability to resist lateral impact, but also play an auxiliary role in heat dissipation.

[0011] Preferably, the reinforcing rib is connected to side stiffening plates on both sides, and the side stiffening plates are also fixedly connected to the inner side of the wheel flange.

[0012] The advantages of this utility model compared with the prior art are:

[0013] The ductile iron heavy-duty truck wheel hub of this invention increases the heat dissipation area of ​​the wheel hub by setting heat dissipation fins, and at the same time sets heat dissipation holes to use the airflow when the wheel rotates to carry away heat and quickly reduce the working temperature of the wheel hub. This invention can avoid the accumulation of heat inside the wheel hub and cause thermal fatigue cracks, thus ensuring the safety of vehicle operation. Attached Figure Description

[0014] Figure 1 This is one of the structural schematic diagrams of this utility model;

[0015] Figure 2 This is the second structural schematic diagram of this utility model.

[0016] In the diagram: 1. Connecting support plate; 11. Heat dissipation hole; 12. Heat dissipation fin; 13. Center positioning hole; 14. Bolt hole; 15. Reinforcing rib; 16. Side rib plate; 2. Wheel rim; 21. Wheel flange. Detailed Implementation

[0017] The present invention will be further described below with reference to specific embodiments.

[0018] However, the description of this utility model is only a structural or even functional description of the embodiments, and the scope of the present utility model is not limited by the embodiments described herein.

[0019] For example, multiple embodiments may have various modifications and forms, and it should be understood that the scope of this utility model includes equivalents that can realize the technical concept.

[0020] like Figures 1-2 As shown, this embodiment is achieved through the following technical solution: including a rim 2, with a connecting support plate 1 connected to one side of the rim 2. The connecting support plate 1 is frustum-shaped, and a plurality of heat dissipation fins 12 and heat dissipation holes 11 are evenly distributed on the side wall of the connecting support plate 1.

[0021] In this embodiment, the rim 2 is provided with flanges 21 on both sides for limiting the tire.

[0022] The connecting support plate 1 has a central positioning hole 13 on its outer end face. The central positioning hole 13 is used to accurately position the wheel hub and the axle head during installation. Several bolt holes 14 are evenly distributed around the central positioning hole 13 for inserting bolts to fix the connection with the axle. The number of heat dissipation fins 12 between two adjacent heat dissipation holes 11 is two.

[0023] The connecting support plate 1 has several reinforcing ribs 15 evenly distributed on its sidewall. The bottom edge of the reinforcing rib 15 is connected to the sidewall of the connecting support plate 1, and the side edge of the reinforcing rib 15 is connected to the wheel rim 21. The reinforcing rib 15 is positioned between two adjacent heat dissipation fins 12. The reinforcing rib 15 not only improves the wheel hub's resistance to lateral impacts but also assists in heat dissipation. Side stiffening plates 16 are connected to both sides of the reinforcing rib 15, and the side stiffening plates 16 are also fixedly connected to the inner side of the wheel rim 21.

[0024] The working principle of this utility model is as follows:

[0025] When the wheel rotates, airflow passes over the heat dissipation fins 12, which increases the heat dissipation area of ​​the wheel hub and facilitates heat dissipation. At the same time, airflow enters the wheel hub through the heat dissipation holes 11 and flows out through other heat dissipation holes, carrying away heat and quickly reducing the operating temperature of the wheel hub.

[0026] Of course, the above description is only a preferred embodiment of this utility model and should not be considered as limiting the scope of the embodiments of this utility model. This utility model is not limited to the above examples, and all equivalent changes and improvements made by those skilled in the art within the scope of this utility model should be included in the patent coverage of this utility model.

Claims

1. A ductile iron heavy-duty truck wheel hub, characterized in that, Includes a rim (2), a connecting support plate (1) connected to one side of the rim (2), the connecting support plate (1) is frustum shaped, and several heat dissipation fins (12) and heat dissipation holes (11) are evenly distributed on the side wall of the connecting support plate (1); several reinforcing ribs (15) are also evenly distributed on the side wall of the connecting support plate (1).

2. The ductile iron heavy-duty truck wheel hub according to claim 1, characterized in that, The rim (2) has flanges (21) on both sides for limiting the tire.

3. The ductile iron heavy-duty truck wheel hub according to claim 1, characterized in that, The outer end face of the connecting support plate (1) is provided with a central positioning hole (13) for precise positioning; a number of bolt holes (14) are evenly distributed around the central positioning hole (13).

4. The ductile iron heavy-duty truck wheel hub according to claim 1, characterized in that, The number of heat dissipation fins (12) between the two adjacent heat dissipation holes (11) is two.

5. The ductile iron heavy-duty truck wheel hub according to claim 2, characterized in that, The bottom edge of the reinforcing rib (15) is connected to the side wall of the connecting support plate (1), the side edge of the reinforcing rib (15) is connected to the wheel rim (21), and the reinforcing rib (15) is disposed between two adjacent heat dissipation fins (12).

6. The ductile iron heavy-duty truck wheel hub according to claim 5, characterized in that, The reinforcing rib (15) is connected to side stiffening plates (16) on both sides, and the side stiffening plates (16) are also fixedly connected to the inner side of the rim (21).

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