Nodular cast iron ventilation disc

Abstract

The utility model belongs to the technical field of brake discs, and particularly relates to a nodular cast iron ventilation disc which comprises a first disc and a second disc, a mounting bearing is arranged in the center of the first disc, the first disc and the second disc are connected through a plurality of rows of supporting columns, the rows of supporting columns are arranged on the first disc to form a plurality of concentric rings, and the concentric rings are coaxial with the first disc and the second disc. The number of the supporting columns on the concentric rings is equal, and the diameters of the supporting columns on the concentric rings are sequentially increased from inside to outside in the radial direction of the first disc. A heat dissipation groove and a plurality of heat dissipation through holes are formed in the face, away from the first disc, of the second disc. The supporting columns are cylindrical, an air guide channel formed by the multiple supporting columns is smoother, airflow passing through the air guide channel cannot be disturbed and scattered, the airflow can pass through the air guide channel more efficiently, and the heat dissipation efficiency is improved. The LED lamp is simple in structure, high in overall strength, long in service life and good in heat dissipation effect.

Description

Technical Field

[0001] The utility model belongs to the technical field of brake discs, and in particular relates to a ductile iron ventilated disc. Background Art

[0002] The brake disc is a core component of the automobile braking system, which plays a role in transmitting automatic torque. The ventilated disc is a type of brake disc, which is widely used due to its excellent heat dissipation effect. Chinese patent document CN 211075850U discloses a brake ventilated disc with an integrated heat dissipation system, including a central hub-mounted bearing and a brake ventilated disc body located outside the hub-mounted bearing; the brake ventilated disc body includes an inner disc and an outer disc, the inner surface of the inner disc can contact the brake pad for braking, and the inner disc and the outer disc are connected as a whole through a number of connecting columns; the inner disc is provided with a parallelogram through hole at the four-section line of the inner disc surface; the inner disc is also provided with a non-through arrow groove and a number of through ventilation holes; the brake ventilated disc improves the heat dissipation by providing arrow grooves and ventilation holes, but the local dense arrangement of the ventilation holes reduces the strength of the ventilated disc and affects the service life. Therefore, a ductile iron ventilated disc is needed to solve the above technical problems. Utility Model Content

[0003] The purpose of the utility model is to solve the above technical problems, and the technical solution is as follows: a ductile iron ventilation disc, comprising a disc one and a disc two, wherein a mounting bearing is arranged at the center of the disc one, and the disc one and the disc two are connected by a support column, wherein the support column is cylindrical, and the support column is provided with multiple rows, and each row of support columns is arranged in a circular ring shape, and the circular ring formed by each row of support columns is coaxial with the disc one and the disc two, and the number of support columns in each row is equal, and the diameter of each row of support columns increases from the inside to the outside in the radial direction of the disc one;

[0004] The surface of the second plate away from the first plate is provided with a heat dissipation groove and a plurality of heat dissipation holes. The support column is cylindrical, and the air guide channel formed by the plurality of support columns is smoother, and will not disturb and break up the passing airflow, so that the airflow can pass more efficiently, thereby improving the heat dissipation efficiency. The ductile iron ventilation plate is made by centrifugal casting.

[0005] Preferably, the heat dissipation grooves are distributed in a spiral shape on the second disk, and the center of the spiral line where the heat dissipation grooves are located coincides with the center of the circle of the second disk. The distribution of the spiral line reduces the friction between the heat dissipation grooves and the air when the ventilating disk rotates, can guide the air to a certain extent, increase the contact area, and further improve the heat sweeping effect.

[0006] Preferably, the plurality of heat dissipation holes are distributed in a spiral shape on disk 2, and the center of the spiral line where the heat dissipation holes are located coincides with the center of disk 2. The distribution shape of the heat dissipation holes can effectively reduce the influence of the heat dissipation holes on the strength of the ventilation disk, improve the heat dissipation effect and reduce the influence on the life of the ventilation disk.

[0007] Preferably, the heat dissipation through holes are distributed on the plate 2 corresponding to the two sides of the heat dissipation groove, and cooperate with the heat dissipation groove to further improve the heat dissipation effect.

[0008] Preferably, an arc-shaped air guiding channel is formed between two adjacent rows of support columns, and each air guiding channel is evenly distributed. When the ventilation disk is in use, the airflow can quickly pass through the air guiding channel to take away most of the heat.

[0009] Preferably, the width of the air guide channel is consistent, the heat dissipation effect is good, and the phenomenon of airflow dispersion and chaos when passing through the air guide channel is reduced.

[0010] The ductile iron ventilation disc made by centrifugal casting in the utility model has high density and high tensile strength, which can improve the use effect and life of the product; through the cylindrical design and distribution shape of the support column, the formed air guide channel can be smooth, which will not disturb and break up the airflow passing through, and the airflow can pass more efficiently, thereby improving the heat dissipation efficiency. The distribution shape of the heat dissipation grooves and heat dissipation through holes improves the heat dissipation effect while reducing the impact on the life of the ventilation disc.

[0011] Compared with the prior art, the utility model has the following beneficial effects: simple structure, high overall strength, long service life and good heat dissipation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model in the embodiment.

[0013] Figure 2 for Figure 1 Schematic diagram of the cross-sectional structure along the AA direction.

[0014] Figure 3 for Figure 1 Right view of .

[0015] In the figure: 1. Plate 2; 2. Plate 1; 3. Support column; 4. Mounting bearing; 5. Air guide channel; 6. Heat dissipation groove; 7. Heat dissipation hole. DETAILED DESCRIPTION

[0016] The technology of the utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0017] Example

[0018] like Figures 1 to 3As shown, this embodiment proposes a ductile iron ventilation disk, including a disk 1 2 and a disk 2 1, wherein a mounting bearing 4 is provided at the center of the disk 1, and the disk 1 and the disk 2 are connected by a support column 3, wherein the support column is cylindrical, and the support columns are arranged in multiple rows, and each row of support columns is arranged in a circular ring shape, and the circular ring formed by each row of support columns is coaxial with the disk 1 and the disk 2, and the number of support columns in each row is equal, and the diameter of each row of support columns increases from the inside to the outside along the radial direction of the disk 1;

[0019] The surface of the second plate 1 away from the first plate 2 is provided with a heat dissipation groove 6 and a plurality of heat dissipation holes 7. The support column 3 is cylindrical, and the air guide channel 5 formed by the plurality of support columns 3 is smoother, and will not disturb and break up the airflow passing through, so that the airflow can pass more efficiently, thereby improving the heat dissipation efficiency. The ductile iron ventilation plate is made by centrifugal casting.

[0020] The heat dissipation grooves 6 are distributed in a spiral shape on the disk 2 1, and the center of the spiral line where the heat dissipation grooves 6 are located coincides with the center of the circle of the disk 2 1. The distribution of the spiral line reduces the friction between the heat dissipation grooves 6 and the air when the ventilating disk rotates, can guide the air to a certain extent, increase the contact area, and further improve the heat sweeping effect.

[0021] The plurality of heat dissipation holes 7 are distributed in a spiral shape on the disk 2 1, and the center of the spiral line where the heat dissipation holes 7 are located coincides with the center of the circle of the disk 2 1. The distribution shape of the heat dissipation holes 7 can effectively reduce the influence of the heat dissipation holes 7 on the strength of the ventilation disk, improve the heat dissipation effect, and reduce the influence on the life of the ventilation disk.

[0022] The heat dissipation through holes 7 are distributed on the plate 2 1 corresponding to the two sides of the heat dissipation groove 6, and cooperate with the heat dissipation groove 6 to further improve the heat dissipation effect.

[0023] An arc-shaped air guide channel 5 is formed between two adjacent rows of support columns 3 (such as Figure 2 As shown by the middle dotted line, each air guide channel 5 is evenly distributed. When the ventilation disc is in use, the air flow can quickly pass through the air guide channel 5 to take away most of the heat.

[0024] The width of the air guide channel 5 is consistent, the heat dissipation effect is good, and the phenomenon of airflow dispersion and chaos when passing through the air guide channel 5 is reduced.

[0025] The ductile iron ventilation disc made by centrifugal casting in the utility model has high density and high tensile strength, which can improve the use effect and life of the product; through the cylindrical design and distribution shape of the support column 3, the formed air guide channel 5 can be smooth, which will not disturb and break up the airflow passing through, and the airflow can pass more efficiently, thereby improving the heat dissipation efficiency. The distribution shape of the heat dissipation groove 6 and the heat dissipation through hole 7 improves the heat dissipation effect while reducing the impact on the life of the ventilation disc.

[0026] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A ductile iron ventilation disc, comprising a disc 1 and a disc 2, wherein a mounting bearing is provided at the center of the disc 1, and the disc 1 and the disc 2 are connected by a support column, characterized in that: The support columns are cylindrical, and are arranged in multiple rows. The support columns in each row are arranged in a circular ring shape. The circular rings formed by the support columns in each row are coaxial with the first disk and the second disk. The number of support columns in each row is equal, and the diameter of the support columns in each row increases from the inside to the outside along the radial direction of the first disk. A heat dissipation groove and a plurality of heat dissipation through holes are arranged on the surface of the disk 2 away from the disk 1.

2. A ductile iron ventilating disc according to claim 1, characterized in that: The heat dissipation grooves are distributed in a spiral shape on the second disk, and the center of the spiral line where the heat dissipation grooves are located coincides with the center of the circle of the second disk.

3. A ductile iron ventilating disc according to claim 1, characterized in that: The plurality of heat dissipation holes are distributed in a spiral shape on the second disk, and the center of the spiral line where the heat dissipation holes are located coincides with the center of the circle of the second disk.

4. A ductile iron ventilating disc according to claim 1, characterized in that: The heat dissipation through holes are distributed on the plate 2 corresponding to the two sides of the heat dissipation groove.

5. A ductile iron ventilating disc according to claim 1, characterized in that: An arc-shaped air guiding channel is formed between two adjacent rows of supporting columns.

6. A ductile iron ventilating disc according to claim 5, characterized in that: The widths of the air guiding channels are consistent.

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