Bearing wheel with good heat dissipation function

Abstract

The utility model discloses a bearing wheel with a good heat dissipation function, and belongs to the technical field of bearing wheels. The bearing wheel with the good heat dissipation function comprises a wheel body and a wheel shaft, the wheel body is installed on the wheel shaft in a rotating mode, the wheel body comprises a wheel core and a wheel face arranged on the outer side of the wheel core, at least one end of the wheel core is provided with a heat dissipation ring capable of rotating along with the wheel body, and heat dissipation blades are arranged on the outer side of the heat dissipation ring. The heat dissipation blades are distributed in a spiral radial shape, and a spiral flow guide groove is formed between every two adjacent heat dissipation blades. According to the bearing wheel, the heat dissipation ring is arranged at the end of the wheel core, heat dissipation airflow is generated through the heat dissipation blades when the bearing wheel rotates, the heat dissipation performance of the bearing wheel is improved, the working temperature of the bearing wheel can be greatly reduced, the service life of the bearing wheel is prolonged, and the working stability of the bearing wheel is improved.

Description

A load-bearing wheel with good heat dissipation function Technical Field

[0001] This utility model relates to a load-bearing wheel, and more specifically, to a load-bearing wheel with good heat dissipation function. Background Technology

[0002] Load-bearing rollers are important mechanical components widely used in various equipment and devices that need to support heavy loads. They are mostly used as driven wheels, such as the load-bearing rollers on forklift forks. They support heavy loads and can rotate freely. The wheel surface of these load-bearing rollers is typically made of polyurethane or similar materials, characterized by small diameter, high load capacity, and high speed. Under high load and high speed conditions, the load-bearing roller generates a lot of heat. If the rubber layer cannot withstand the heat, it will delaminate, leading to wheel failure. Furthermore, the high temperature generated during operation also reduces the performance and lifespan of the bearings, thus reducing the operational stability and service life of the load-bearing roller. Summary of the Invention

[0003] 1. Technical problem to be solved by the utility model

[0004] The purpose of this invention is to overcome the above-mentioned shortcomings of existing load-bearing wheels and provide a load-bearing wheel with good heat dissipation function. By adopting the technical solution of this invention, a heat dissipation ring is set at the end of the wheel core. When the load-bearing wheel rotates, the heat dissipation blades generate heat dissipation airflow, which improves the heat dissipation performance of the load-bearing wheel, can significantly reduce the working temperature of the load-bearing wheel, and improve its service life and working stability.

[0005] 2. Technical Solution

[0006] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0007] The present invention provides a load-bearing wheel with good heat dissipation function, comprising a wheel body and a wheel axle. The wheel body is rotatably mounted on the wheel axle. The wheel body includes a wheel core and a wheel surface disposed on the outer side of the wheel core. At least one end of the wheel core is provided with a heat dissipation ring that can rotate with the wheel body. The outer side of the heat dissipation ring has heat dissipation blades.

[0008] Furthermore, the heat dissipation blades are distributed in a spiral radial pattern, forming spiral guide grooves between adjacent heat dissipation blades.

[0009] Furthermore, the heat dissipation ring is made of cast aluminum.

[0010] Furthermore, the heat dissipation ring is provided with mounting holes and is fixed to the end face of the wheel core by screws.

[0011] Furthermore, the end of the wheel core protrudes from the end face of the wheel surface to form a protruding end, and the inner side of the heat dissipation ring is provided with an annular groove that can contact and fit with the protruding end.

[0012] Furthermore, the heat dissipation ring is located on the inner side of the outer periphery of the ring groove and is attached to the corresponding end face of the wheel surface.

[0013] Furthermore, the axle includes a bushing mounted in the inner hole of the wheel core via a bearing. The outer end of the bushing has a frustum, and an outer ring is provided on the frustum. The outer ring is located inside the heat dissipation ring, and the frustum is located in the central hole of the heat dissipation ring. A labyrinthine fitting clearance is formed between the heat dissipation ring, the frustum, and the outer ring.

[0014] Furthermore, the axle also includes a spacer between the bushings at both ends. The inner ring of the bearing is mounted on the sleeve of the corresponding bushing, and the outer ring of the bearing is mounted on the inner end of the wheel core. A limiting boss for limiting the inner ring of the bearing is provided on the side of the sleeve near the frustum. The inner rings of the bearings on the two bushings are limited by the spacer. A limiting step for limiting the outer ring of the bearing is also provided on the inner wall of the wheel core.

[0015] Furthermore, the bearing is a double-row ball bearing.

[0016] 3. Beneficial effects

[0017] Compared with existing known technologies, the technical solution provided by this utility model has the following beneficial effects:

[0018] (1) The present invention provides a load-bearing wheel with good heat dissipation function, which includes a wheel body and a wheel axle. The wheel body is rotatably mounted on the wheel axle. The wheel body includes a wheel core and a wheel surface disposed on the outer side of the wheel core. At least one end of the wheel core is provided with a heat dissipation ring that can rotate with the wheel body. The outer side of the heat dissipation ring is provided with heat dissipation blades. By providing a heat dissipation ring at the end of the wheel core, heat dissipation airflow is generated by the heat dissipation blades when the load-bearing wheel rotates, thereby improving the heat dissipation performance of the load-bearing wheel, significantly reducing the working temperature of the load-bearing wheel, and improving its service life and working stability.

[0019] (2) The present invention provides a load-bearing wheel with good heat dissipation function. Its heat dissipation blades are distributed in a spiral radial pattern, and a spiral guide groove is formed between adjacent heat dissipation blades. When the spiral guide groove rotates with the load-bearing wheel, it can better draw in or expel the surrounding air, quickly remove the heat generated by the load-bearing wheel, and improve the heat dissipation efficiency.

[0020] (3) The present invention provides a load-bearing wheel with good heat dissipation function, wherein the heat dissipation ring is made of cast aluminum. On the one hand, aluminum has good thermal conductivity, which can achieve efficient heat transfer and heat dissipation. On the other hand, die casting can be used to easily form the required heat dissipation blade structure, which is convenient to process and manufacture.

[0021] (4) The present invention provides a load-bearing wheel with good heat dissipation function. The heat dissipation ring is provided with mounting holes and is fixed to the end face of the wheel core by screws, which makes the installation firm and convenient.

[0022] (5) The present invention provides a load-bearing wheel with good heat dissipation function, wherein the end of the wheel core protrudes from the end face of the wheel surface to form a protruding end, and the inner side of the heat dissipation ring is provided with an annular groove that can contact and fit with the protruding end. On the one hand, by utilizing the cooperation between the protruding end and the annular groove, the installation accuracy of the heat dissipation ring can be improved, and the coaxiality between the heat dissipation ring and the wheel core can be guaranteed. On the other hand, the contact surface between the heat dissipation ring and the wheel core can be increased, thereby improving the heat conduction and heat dissipation efficiency.

[0023] (6) The present invention provides a load-bearing wheel with good heat dissipation function. Its heat dissipation ring is located on the inner side of the outer periphery of the ring groove and is attached to the corresponding end face of the wheel surface. It can fix the wheel surface and block the dividing line between the wheel surface and the wheel core, which can prevent the end of the wheel surface from cracking and being damaged.

[0024] (7) A load-bearing wheel with good heat dissipation function of the present invention includes a bushing installed in the inner hole of the wheel core through a bearing. The outer end of the bushing has a frustum. An outer ring body is provided on the frustum. The outer ring body is located inside the heat dissipation ring. The frustum is located in the center hole of the heat dissipation ring. A labyrinth-shaped fitting gap is formed between the heat dissipation ring, the frustum and the outer ring body. By using the bushing and the heat dissipation ring to form a labyrinth-shaped fitting gap, the bearing can be protected from dust and water, and the working stability and life of the bearing can be improved.

[0025] (8) The present invention provides a load-bearing wheel with good heat dissipation function. The wheel axle also includes a spacer between the bushings at both ends. The inner ring of the bearing is installed on the sleeve of the corresponding bushing, and the outer ring of the bearing is installed on the inner end of the wheel core. A limiting boss for limiting the inner ring of the bearing is provided on the side of the sleeve near the truncated cone. The inner rings of the bearings on the two bushings are limited by the spacer. A limiting step for limiting the outer ring of the bearing is also provided on the inner wall of the wheel core. This structural design facilitates the assembly and manufacturing of the load-bearing wheel.

[0026] (9) The present invention provides a load-bearing wheel with good heat dissipation function, the bearing of which is a double-row ball bearing, which improves the load-bearing capacity and rotation flexibility of the load-bearing wheel. Attached Figure Description

[0027] Figure 1 is a three-dimensional structural diagram of a load-bearing wheel with good heat dissipation function according to the present invention;

[0028] Figure 2 is a side view of a load-bearing wheel with good heat dissipation function according to the present invention;

[0029] Figure 3 is a schematic diagram of the cross-sectional structure along the AA direction in Figure 2;

[0030] Figure 4 is a magnified view of the local structure at point K in Figure 3;

[0031] Figure 5 is a schematic diagram of the disassembled structure of a load-bearing wheel with good heat dissipation function according to this utility model;

[0032] Figure 6 is a schematic diagram of the structure of the wheel body in the load-bearing wheel of this utility model;

[0033] Figure 7 is a structural schematic diagram of the bearing wheel axle sleeve of this utility model;

[0034] Figure 8 is a schematic diagram of the outer end face structure of the heat dissipation ring in the bearing wheel of this utility model;

[0035] Figure 9 is a schematic diagram of the inner end face structure of the heat dissipation ring in the bearing wheel of this utility model.

[0036] Explanation of the labels in the diagram:

[0037] 1. Wheel body; 1-1. Wheel core; 1-1a. Protruding end; 1-1b. Limiting step; 1-2. Wheel surface; 2. Wheel axle; 2-1. Bushing; 2-1a. Bushing body; 2-1b. Frustum; 2-1c. Outer ring; 2-1d. Limiting boss; 2-1e. Shaft hole; 2-2. Spacer; 3. Heat dissipation ring; 3-1. Heat dissipation blades; 3-2. Mounting hole; 3-3. Center hole; 3-4. Annular groove; 4. Bearing; 5. Fit clearance. Detailed Implementation

[0038] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings and embodiments.

[0039] [Example]

[0040] Referring to Figures 1 to 3, a load-bearing wheel with good heat dissipation function according to this embodiment includes a wheel body 1 and a wheel axle 2. The wheel body 1 is rotatably mounted on the wheel axle 2. During use, the wheel body 1 bears the load and rotates. The wheel body 1 includes a wheel core 1-1 and a wheel surface 1-2 disposed on the outside of the wheel core 1-1. The wheel core 1-1 is made of hard metal, and the wheel surface 1-2 can be made of a material with certain elasticity and wear resistance, such as nylon or polyurethane. The wheel surface 1-2 is compositely formed on the outside of the wheel core 1-1 to form the wheel body 1 with an integral structure. At least one end of the wheel core 1-1 is provided with a heat dissipation ring 3 that can rotate with the wheel body 1. The outer side of the heat dissipation ring 3 has heat dissipation blades 3-1. In order to further improve the heat dissipation performance of the load-bearing wheel, it is preferable to provide a heat dissipation ring 3 at each end of the wheel core 1-1. When the bearing wheel rotates, the heat dissipation ring 3 rotates together with it. The heat dissipation blades 3-1 generate a heat dissipation airflow, which carries away the heat generated by the bearing wheel, improving the heat dissipation performance of the bearing wheel. This can significantly reduce the working temperature of the bearing wheel, prevent the wheel surface 1-2 from delaminating due to excessive temperature, and improve the service life and working stability of the bearing wheel.

[0041] Referring to Figures 1 and 2, in a preferred embodiment, the heat dissipation blades 3-1 are arranged in a spiral radial pattern, forming spiral guide grooves between adjacent heat dissipation blades 3-1. These spiral guide grooves effectively draw in or expel surrounding air as the load-bearing wheel rotates, quickly removing the heat generated by the load-bearing wheel and improving heat dissipation efficiency. As shown in Figure 8, the depth of the heat dissipation blades 3-1 gradually increases from the inner side to the outer side of the heat dissipation ring 3. When the wheel 1 rotates clockwise as shown in Figures 2 and 8, air can be drawn in from the outer side of the heat dissipation ring 3 and expelled from the center outwards, achieving air circulation and accelerating heat dissipation from the load-bearing wheel.

[0042] In this embodiment, the heat dissipation ring 3 is preferably a cast aluminum part. Aluminum has excellent thermal conductivity, enabling efficient heat transfer and dissipation. Furthermore, die casting allows for easy fabrication of the required heat dissipation blade structure. To facilitate installation, mounting holes 3-2 are provided on the heat dissipation ring 3, and it is fixed to the end face of the wheel core 1-1 with screws, ensuring a secure and convenient installation. The mounting holes 3-2 are evenly distributed along the circumference of the heat dissipation ring 3, and are preferably located in the guide groove. Countersunk screws are preferred.

[0043] As shown in Figures 3, 4, 6, and 9, in this embodiment, the end of the wheel core 1-1 protrudes beyond the end face of the wheel surface 1-2 to form a protruding end 1-1a. The inner surface of the heat dissipation ring 3 is provided with an annular groove 3-4 that can contact and fit with the protruding end 1-1a. The annular groove 3-4 can be machined to ensure dimensional accuracy, so that the inner diameter of the annular groove 3-4 is consistent with the outer diameter of the protruding end 1-1a. On the one hand, the cooperation between the protruding end 1-1a and the annular groove 3-4 can improve the installation accuracy of the heat dissipation ring 3 and ensure the coaxiality of the heat dissipation ring 3 and the wheel core 1-1. On the other hand, it can increase the contact surface between the heat dissipation ring 3 and the wheel core 1-1, thereby improving the heat conduction and heat dissipation efficiency. In addition, as shown in Figure 4, the heat dissipation ring 3 is located on the inner side of the outer periphery of the ring groove 3-4 and is attached to the corresponding end face of the wheel surface 1-2. It can fix the wheel surface 1-2. Moreover, the heat dissipation ring 3 blocks the dividing line between the wheel surface 1-2 and the wheel core 1-1, which can prevent the end of the wheel surface 1-2 from cracking and being damaged.

[0044] As shown in Figures 3 and 7, in this embodiment, the axle 2 includes a bushing 2-1 installed in the inner hole of the wheel core 1-1 via a bearing 4. The outer end of the bushing 2-1 has a frustum 2-1b, and an outer ring 2-1c is provided on the frustum 2-1b. The outer ring 2-1c is located inside the heat dissipation ring 3, and its outer diameter is slightly smaller than the inner hole diameter of the wheel core 1-1. The frustum 2-1b is located inside the central hole 3-3 of the heat dissipation ring 3, and its outer diameter is slightly smaller than the central hole diameter of the heat dissipation ring 3. A labyrinthine fitting clearance 5 is formed between the heat dissipation ring 3, the frustum 2-1b, and the outer ring 2-1c. As shown in Figure 4, the aforementioned fitting clearance 5 has a multi-bending structure, which can provide dust and water protection for the bearing 4, improving the working stability and lifespan of the bearing 4. In addition, since the heat dissipation ring 3 can generate a flowing airflow during rotation, this airflow can also prevent dust from entering the mating gap 5. Compared with the traditional design of adding a dust cover, the structure is simpler and has both heat dissipation and dust prevention effects, achieving multiple benefits. Specifically, there is one bushing 2-1 on each of the left and right ends of the wheel body 1. The wheel axle 2 also includes a spacer 2-2 located between the bushings 2-1 at both ends. The inner ring of the bearing 4 is installed on the sleeve body 2-1a of the corresponding bushing 2-1, and the outer ring of the bearing 4 is installed on the inner end of the inner hole of the wheel core 1-1. The sleeve body 2-1a has a limiting boss 2-1d for limiting the inner ring of the bearing 4 on the side near the frustum 2-1b. The two ends of the spacer 2-2 are respectively sleeved on the outer side of the sleeve body 2-1a of the corresponding bushing 2-1. The inner rings of the bearing 4 on the two bushings 2-1 are limited by the spacer 2-2. The inner hole wall of the wheel core 1-1 also has a limiting step 1-1b for limiting the outer ring of the bearing 4. The end faces of the limiting step 1-1b and the wheel core 1-1 can also be machined by turning. This structural design facilitates the assembly and manufacturing of the load-bearing wheel. Furthermore, as shown in Figures 3 and 5, the bearing 4 is preferably a double-row ball bearing, which improves the load-bearing capacity and rotational flexibility of the load-bearing wheel. The bushing 2-1 has a central shaft hole 2-1e to facilitate the installation and use of the load-bearing wheel.

[0045] Taking a conventional forklift wheel with a speed of 4-6 km / h and a maximum wheel diameter of 80 mm as an example, the load-bearing wheel of this embodiment rotates at approximately 350-400 rpm. Under the action of the heat dissipation ring 3, heat can be transferred from the inside of the load-bearing wheel to its end, and the airflow formed by the heat dissipation blades 3-1 can quickly remove the heat, significantly reducing the temperature of the load-bearing wheel and significantly improving the product's service life. Although the aluminum heat dissipation ring 3 is relatively soft, after the load-bearing wheel is installed, the mounting bracket at its end (e.g., the metal fork tooth sidewall of the forklift) can protect it. Therefore, the durability of the heat dissipation ring 3 can be guaranteed even in complex operating environments.

[0046] This utility model discloses a load-bearing wheel with good heat dissipation function. By setting a heat dissipation ring at the end of the wheel core, the heat dissipation blades generate heat dissipation airflow when the load-bearing wheel rotates, which improves the heat dissipation performance of the load-bearing wheel, can significantly reduce the working temperature of the load-bearing wheel, and improve its service life and working stability.

[0047] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention; the actual structure is not limited thereto. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A load-bearing wheel with good heat dissipation function, comprising a wheel body (1) and a wheel axle (2), wherein the wheel body (1) is rotatably mounted on the wheel axle (2), and the wheel body (1) comprises a wheel core (1-1) and a wheel surface (1-2) disposed outside the wheel core (1-1), characterized in that: At least one end of the wheel core (1-1) is provided with a heat dissipation ring (3) that can rotate together with the wheel body (1), and the outer side of the heat dissipation ring (3) has heat dissipation blades (3-1).

2. The load wheel with good heat dissipation function according to claim 1, characterized in that: The heat dissipation blades (3-1) are distributed in a spiral radial pattern, forming a spiral guide groove between adjacent heat dissipation blades (3-1).

3. The load wheel with good heat dissipation function according to claim 1 or 2, characterized in that: The heat dissipation ring (3) is a cast aluminum part.

4. The load wheel with good heat dissipation function according to claim 1 or 2, characterized in that: The heat dissipation ring (3) is provided with mounting holes (3-2) and is fixed to the end face of the wheel core (1-1) by screws.

5. The load-bearing wheel with good heat dissipation function according to claim 1 or 2, characterized in that: The end of the wheel core (1-1) protrudes from the end face of the wheel surface (1-2) to form a protruding end (1-1a), and the inner side of the heat dissipation ring (3) is provided with an annular groove (3-4) that can contact and fit with the protruding end (1-1a).

6. The load wheel with good heat dissipation function according to claim 5, characterized in that: The heat dissipation ring (3) is located on the inner side of the outer periphery of the ring groove (3-4) and is attached to the corresponding end face of the wheel surface (1-2).

7. The load wheel with good heat dissipation function according to claim 1 or 2, characterized in that: The axle (2) includes a bushing (2-1) installed in the inner hole of the wheel core (1-1) via a bearing (4). The outer end of the bushing (2-1) has a frustum (2-1b). An outer ring (2-1c) is provided on the frustum (2-1b). The outer ring (2-1c) is located inside the heat dissipation ring (3). The frustum (2-1b) is located in the central hole (3-3) of the heat dissipation ring (3). A labyrinthine fitting gap (5) is formed between the heat dissipation ring (3), the frustum (2-1b), and the outer ring (2-1c).

8. The load-bearing wheel with good heat dissipation function according to claim 7, characterized in that: The axle (2) also includes a spacer (2-2) between the bushings (2-1) at both ends. The inner ring of the bearing (4) is mounted on the sleeve (2-1a) of the corresponding bushing (2-1). The outer ring of the bearing (4) is mounted on the inner end of the wheel core (1-1). A limiting boss (2-1d) for limiting the inner ring of the bearing (4) is provided on the side of the sleeve (2-1a) near the frustum (2-1b). The inner rings of the bearings (4) on the two bushings (2-1) are limited by the spacer (2-2). A limiting step (1-1b) for limiting the outer ring of the bearing (4) is also provided on the inner wall of the wheel core (1-1).

9. The load wheel with good heat dissipation function according to claim 8, characterized in that: The bearing (4) is a double-row ball bearing.

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