Solid flat brake disc for heavy truck

Abstract

This utility model relates to the field of brake disc technology and discloses a solid flat brake disc for heavy-duty trucks. The disc body is a solid flat disc with a through-hole in the center. A first positioning stop is provided on one side of the disc body near the mounting hole, and a second positioning stop is provided on the other side. Several groups of heat dissipation holes are evenly distributed on the disc body, each group including several through-holes. This utility model reduces high-temperature cracking and deformation, facilitates installation, and effectively improves the performance of the brake disc.

Description

Technical Field

[0001] This utility model relates to the field of brake disc technology, and in particular to a solid flat brake disc for heavy-duty trucks. Background Technology

[0002] The brake disc is the rotating element in the friction pair of a disc brake, shaped like a metal disk with working ends. Fixed to the wheel hub, the brake disc works in conjunction with the brake caliper to achieve braking. When braking, the brake pads clamped by the caliper press vertically against the friction surface of the brake disc, generating friction and thus producing braking torque. Mechanical energy is converted into heat energy, thereby slowing down or stopping the vehicle. Currently, most commercial vehicle brake discs on the market are necked discs, and the few flat discs without necks are mostly hollow duct structures.

[0003] The existing technology has at least the following problems: the brake discs of the two structures mentioned above are prone to high-temperature cracking and deformation during use, especially in mountainous areas with poor road conditions and frequent braking, causing users a lot of inconvenience such as parking for repair and maintenance, and spending extra money to replace parts. Utility Model Content

[0004] This invention addresses the shortcomings of existing technologies by developing a solid flat brake disc for heavy-duty trucks. This invention reduces high-temperature cracking and deformation, facilitates installation, and effectively improves the performance of the brake disc.

[0005] The technical solution of this utility model to solve the technical problem is as follows: a solid flat brake disc for heavy trucks, including a disc body, the disc body is a solid flat disc, a mounting hole is provided through the center of the disc body, a first positioning stop is provided on the disc body on one side of the mounting hole, a second positioning stop is provided on the disc body on the other side of the mounting hole, and a number of heat dissipation hole groups are evenly provided on the disc body, each heat dissipation hole group including a number of heat dissipation holes that are arranged through the disc.

[0006] As an optimization, the heat dissipation holes in the same group are distributed in an arc, with the center of the arc on the disk body, and the diameter of the heat dissipation holes is 5-7mm. This can improve the heat dissipation effect.

[0007] As an optimization, a bolt hole is provided through the first positioning stop. The bolt hole facilitates connection to the wheel hub with bolts.

[0008] As an optimization, the second locating stop is provided with a threaded hole. By providing the threaded hole, it is convenient to fix and lock the ABS gear ring to the second locating stop with bolts.

[0009] As an optimization, the thickness of the disc is 20-40mm, and the outer diameter of the disc is 170-430mm. It can be adapted to various models of heavy-duty trucks.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] By designing the disc body, it can be 6-8 kg lighter than traditional brake discs with a neck, with lower molding difficulty and less prone to high-temperature cracking and deformation. The mounting holes allow the axle to pass through; the first positioning stop allows it to mate with the wheel hub; the second positioning stop allows it to mate with the ABS gear ring; and the heat dissipation holes allow for heat dissipation during braking. This invention reduces high-temperature cracking and deformation, facilitates installation, and effectively improves the performance of the brake disc. Attached Figure Description

[0012] Figure 1 This is a perspective view of one embodiment of the present utility model.

[0013] Figure 2 This is a front view of one embodiment of the present utility model.

[0014] Figure 3 This is a rear view of one embodiment of the present invention.

[0015] In the diagram: 1. Disc body; 2. Mounting hole; 3. First positioning stop; 4. Second positioning stop; 5. Heat dissipation hole; 6. Bolt hole; 7. Threaded hole. Detailed Implementation

[0016] To clearly illustrate the technical features of this solution, the present invention will be described in detail below through specific implementation methods and in conjunction with the accompanying drawings.

[0017] Example 1

[0018] Figures 1 to 3 As one embodiment of this utility model, such as Figures 1 to 3 As shown, a solid flat brake disc for heavy-duty trucks includes a disc body 1. The disc body 1 is a solid flat disc made of high-grade alloy spring steel, which is quenched at 950-1050℃ to refine the crystal grain size, making the workpiece grain size more compact and durable. A mounting hole 2 is provided through the center of the disc body 1. A first positioning stop 3 is provided on the disc body 1 on one side of the mounting hole 2, and a second positioning stop 4 is provided on the disc body 1 on the other side of the mounting hole 2. Five sets of heat dissipation holes are evenly provided on the disc body 1. The five sets of heat dissipation holes are distributed in a spiral shape, and each set of heat dissipation holes includes three through-hole heat dissipation holes 5.

[0019] By setting the disc body 1, it can be 6-8 kg lighter than the traditional brake disc with a neck, and the molding difficulty is reduced by more than 40% compared with the traditional structure. It is less prone to problems such as high temperature cracking and deformation. By setting the mounting hole 2, it can allow the axle to pass through. By setting the first positioning stop 3, it can be matched with the wheel hub. By setting the second positioning stop 4, it can be matched with the ABS gear ring. By setting the spiral heat dissipation holes 5, it can dissipate heat from the disc body 1 during braking and improve the heat dissipation effect.

[0020] like Figures 1 to 3 As shown, the heat dissipation holes 5 in the same group are distributed in an arc, with the center of the arc located on the disk body 1. The diameter of the heat dissipation holes 5 is 6mm. This can improve the heat dissipation effect.

[0021] like Figure 1 and Figure 3 As shown, the diameter of the first positioning stop 3 is 217mm, and bolt holes 6 are provided through the first positioning stop 3. The bolt holes 6 are evenly distributed on a distribution circle with a diameter of 189mm. By providing bolt holes 6, it is convenient to connect to the wheel hub with bolts.

[0022] like Figure 2 and Figure 3 As shown, the diameter of the second positioning stop 4 is 256mm, and a threaded hole 7 is provided through the second positioning stop 4. The threaded holes 7 are evenly distributed on a distribution circle with a diameter of 246mm. By providing the threaded holes 7, it is convenient to fix and lock the ABS gear ring to the second positioning stop 4 with bolts.

[0023] like Figures 1 to 3 As shown, the thickness of disc 1 is 30mm, and the outer diameter of disc 1 is 430mm. It can be adapted to various models of heavy-duty trucks.

[0024] In use, the ABS gear ring is fixed and locked onto the second positioning stop 4 through bolts and threaded holes 7. The wheel hub is made to mate with the first positioning stop 3 through bolts and bolt holes 6 and then tightened. The SAE3080 disc crack and performance test is conducted until no cracks are found after 23 cycles, which is much greater than the standard requirement of 10 cycles. The bolt connection vibration anti-loosening test is conducted, and there is no change after 72 hours. The SAE3080 benchmark test proves that this utility model is more than 3 times more durable than the traditional necked brake disc. The service mileage of the traditional structure brake disc is mostly 100,000 to 150,000 kilometers, while this utility model can be used for at least 450,000 kilometers.

[0025] The descriptions of the orientation or relative positional relationships of the structure in this utility model, such as "center", "up", "down", "left", "right", "vertical", "horizontal", "inner", and "outer", are based on the orientation or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the structure referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

Claims

1. A solid planar brake disc for heavy duty trucks comprising a disc body (1) characterised in that the disc body (1) is a solid flat disk. A mounting hole (2) is provided through the center of the disk body (1). A first positioning stop (3) is provided on the disk body (1) on one side of the mounting hole (2). A second positioning stop (4) is provided on the disk body (1) on the other side of the mounting hole (2). Several groups of heat dissipation holes are evenly provided on the disk body (1). Each group of heat dissipation holes includes several through-hole heat dissipation holes (5).

2. A solid planar brake disc for heavy duty trucks as claimed in claim 1 characterised in that: The heat dissipation holes (5) in the same group are distributed in an arc, and the center of the arc is on the disk (1). The diameter of the heat dissipation holes (5) is 5-7 mm.

3. A solid planar brake disc for heavy duty trucks as defined in claim 2, characterized in that: The first positioning stop (3) has a through bolt hole (6).

4. A solid planar brake disc for heavy duty trucks as defined in claim 3, characterized by: The second positioning stop (4) is provided with a threaded hole (7).

5. Solid planar brake disc for heavy duty trucks according to any one of claims 1 to 4, characterized in that: The thickness of the disc body (1) is 20-40 mm, and the outer diameter of the disc body (1) is 170-430 mm.

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