Brake disc, brake device and vehicle

Abstract

The utility model relates to a brake disc, a brake device and a vehicle, the brake disc comprises a first disc body, a second disc body and a bolt, the outer edge of one side, facing the second disc body, of the first disc body is provided with a first plug-in rib, and the outer edge of one side, facing the first disc body, of the second disc body is provided with a second plug-in rib; a first inserting groove is formed in the first inserting rib, a second inserting groove is formed in the second inserting rib, the opposite surfaces of the first inserting rib and the second inserting rib abut against each other, so that the first inserting groove and the second inserting groove are combined to form an inserting groove, and the inserting groove is provided with an outer end opening facing the radial outer side of the brake disc; the plug pins are inserted into the inserting grooves in an interference mode so as to fix the outer ring of the first disc body and the outer ring of the second disc body. According to the brake disc, looseness between the outer ring of the first disc body and the outer ring of the second disc body can be avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of brake systems and relates to a brake disc, a brake device and a vehicle. Background Art

[0002] The brake disc is one of the important components in the automobile braking system. When the car is driving, the brake disc is connected to the wheel hub and rotates synchronously. At this time, there is a gap between the friction plate and the brake disc to prevent the friction plate and the brake disc from contacting and generating braking torque. When the car brakes, the friction plate and the brake disc fit together, and the contact surface generates a large friction force, which hinders the car from decelerating. Therefore, the performance of the brake disc directly affects the safety of the car.

[0003] The split ventilated disc in the related art includes a first disc body and a second disc body, and the first disc body and the second disc body are connected by bolts. The connection part of the bolts is at the radial middle position or inner ring position of the first disc body and the second disc body, and the inner ring of the first disc body and the second disc body are firmly connected, but the outer ring of the first disc body and the outer ring of the second disc body still have the risk of loosening. Utility Model Content

[0004] The technical problem to be solved by the utility model is: in view of the problem that the outer ring of the first disc body and the outer ring of the second disc body in the split ventilated disc in the related technology still have the risk of loosening, a brake disc, a brake device and a vehicle are provided.

[0005] In order to solve the above technical problems, on the one hand, the utility model provides a brake disc, including a first disc body, a second disc body and a latch, wherein the first disc body and the second disc body are annular, and a first plugging rib protruding toward the second disc body is provided at an outer edge of one side of the first disc body facing the second disc body, and a second plugging rib protruding toward the first disc body is provided at an outer edge of one side of the second disc body facing the first disc body;

[0006] The first plug-in rib is provided with a first slot, the second plug-in rib is provided with a second slot, the first plug-in rib abuts against the opposite surface of the second plug-in rib, so that the first slot and the second slot are combined to form a plug-in slot, and the plug-in slot has an outer end opening facing the radial outer side of the brake disc;

[0007] The latch is inserted into the insertion slot with interference fit to fix the outer ring of the first disk body and the outer ring of the second disk body.

[0008] According to the brake disc of the embodiment of the utility model, a first slot is provided on the first plug-in rib, a second slot is provided on the second plug-in rib, the first plug-in rib and the second plug-in rib are in contact with each other on the opposite surface, so that the first slot and the second slot are combined to form a plug-in slot, and the pin is inserted in the plug-in slot with interference fit to fix the outer ring of the first disc body and the outer ring of the second disc body. Thus, the outer ring of the first disc body and the outer ring of the second disc body are limited in the circumferential direction, axial direction and radial direction, and the outer ring of the first disc body and the outer ring of the second disc body are firmly connected, which can prevent the outer ring of the first disc body from loosening with the outer ring of the second disc body.

[0009] Optionally, the latch has a first pin portion that matches the shape of the first slot and a second pin portion that matches the shape of the second slot, the first pin portion is inserted into the first slot, and the second pin portion is inserted into the first slot.

[0010] Optionally, the width of the first slot gradually increases in a direction away from the second slot, and the width of the second slot gradually increases in a direction away from the first slot, so that the width of the plug-in slot gradually increases from the junction of the first slot and the second slot to both sides.

[0011] Optionally, the first slot and the second slot are trapezoidal, and the top of the first slot is connected to the top of the second slot;

[0012] The first pin portion and the second pin portion are trapezoidal in shape.

[0013] Optionally, the latch is provided in plurality, the first plugging ribs are provided in plurality, the second plugging ribs are provided in plurality, the plurality of the first plugging ribs are arranged at intervals along the circumferential direction of the first disk body, and the plurality of the second plugging ribs are arranged at intervals along the circumferential direction of the second disk body;

[0014] Each of the first plug-in ribs abuts against the relative surface of the second plug-in rib facing it, so that the first slots of multiple first plug-in ribs and the second slots of multiple second plug-in ribs are combined to form a plurality of plug-in grooves arranged at intervals along the circumferential direction of the brake disc, and each of the pins is interference fit in the corresponding plug-in groove.

[0015] Optionally, a first connecting rib protruding toward the second disc body is provided on a side of the first disc body facing the second disc body, and a second connecting rib protruding toward the first disc body is provided on a side of the second disc body facing the first disc body, and the first connecting rib abuts against the opposite surfaces of the second connecting rib; and further includes a connecting assembly, which is used to fix the first disc body and the second disc body at the junction of the first connecting rib and the second connecting rib along the axial direction of the brake disc.

[0016] Optionally, the first disc body is provided with a first through hole penetrating the first connecting rib along the axial direction of the brake disc, and the second disc body is provided with a second through hole penetrating the second connecting rib along the axial direction of the brake disc;

[0017] The connecting assembly includes a bolt and a nut. The bolt passes through the first through hole and the second through hole. The nut is threadedly connected to the end of the bolt that passes through the second disc body to fix the first disc body and the second disc body along the axial direction of the brake disc.

[0018] Optionally, the first connecting rib is arranged at the radial inner edge of the first disc body, and the second connecting rib is arranged at the radial inner edge of the second disc body, so that the connecting assembly fixes the inner ring of the first disc body and the inner ring of the second disc body along the axial direction of the brake disc.

[0019] Optionally, the connection assembly is provided in plurality, the first connection ribs are provided in plurality, the second connection ribs are provided in plurality, the plurality of the first connection ribs are arranged at intervals along the circumferential direction of the first disk body, and the plurality of the second connection ribs are arranged at intervals along the circumferential direction of the second disk body;

[0020] Each of the first connecting ribs abuts against an opposite surface of the second connecting rib facing it.

[0021] Optionally, a side of the first disk body facing the second disk body is provided with a plurality of first heat dissipation ribs protruding toward the second disk body, and a side of the second disk body facing the first disk body is provided with a plurality of second heat dissipation ribs protruding toward the first disk body, and each of the first heat dissipation ribs abuts against the relative surface of the second heat dissipation rib directly opposite to it.

[0022] Optionally, a plurality of the first heat dissipation ribs are distributed in a ring shape, and a plurality of the second heat dissipation ribs are distributed in a ring shape;

[0023] and / or,

[0024] Along the radial direction of the first disk body, there are a plurality of the first heat dissipation ribs arranged in a straight line; along the radial direction of the second disk body, there are a plurality of the second heat dissipation ribs arranged in a straight line.

[0025] Optionally, the first disk body includes a first outer disk and a first inner disk, and the first outer disk is attached to a side surface of the first inner disk away from the second disk body; the second disk body includes a second outer disk and a second inner disk, and the second outer disk is attached to a side surface of the second inner disk away from the first disk body.

[0026] Optionally, the material density of the first outer disk is greater than the material density of the first inner disk, and the material density of the second outer disk is greater than the material density of the second inner disk;

[0027] and / or,

[0028] The friction coefficient of the first outer disk is greater than the friction coefficient of the first inner disk, and the friction coefficient of the second outer disk is greater than the friction coefficient of the second inner disk.

[0029] Optionally, the first outer disk is made of cast iron, and the first inner disk is made of aluminum alloy, aluminum alloy ceramic or carbon fiber ceramic;

[0030] and / or,

[0031] The second outer disk is made of cast iron, and the second inner disk is made of aluminum alloy, aluminum alloy ceramic or carbon fiber ceramic.

[0032] On the other hand, an embodiment of the utility model further provides a braking device, including a brake clamp and the above-mentioned brake disc, wherein the brake clamp is used for braking the brake disc.

[0033] The brake device provided in the embodiment of the utility model has all the advantages of the above-mentioned brake disc.

[0034] On the other hand, an embodiment of the present invention further provides a vehicle, comprising the above-mentioned brake disc.

[0035] The vehicle provided in the embodiment of the utility model has all the advantages of the above-mentioned brake disc. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is an exploded view (stereoscopic view) of a brake disc provided in one embodiment of the utility model;

[0037] Figure 2 This is an exploded view (enlarged) of a first disc body of a brake disc provided by an embodiment of the utility model;

[0038] Figure 3 It is a top view of a first disc body of a brake disc provided by an embodiment of the utility model;

[0039] Figure 4 This is an exploded view (enlarged) of the second disc body of the brake disc provided by one embodiment of the utility model;

[0040] Figure 5 It is an exploded view (side view) of a brake disc provided in one embodiment of the utility model;

[0041] Figure 6 It is a partial enlarged view of the brake disc after assembly provided by one embodiment of the utility model;

[0042] Figure 7 It is an enlarged view of a latch of a brake disc provided in one embodiment of the utility model.

[0043] The reference numerals in the specification are as follows:

[0044] 1. First disk body; 1a. First outer disk; 1b. First inner disk; 11. First plug-in rib; 111. First slot; 12. First connecting rib; 13. First through hole; 131. First via hole; 132. Second via hole; 14. First heat dissipation rib; 2. Second disk body; 2a. Second outer disk; 2b. Second inner disk; 21b. Second inner disk body; 22b. Disk cap; 21. Second plug-in rib; 211. Second slot; 22. Second connecting rib; 23. Second through hole; 231. Third via hole; 241. Fourth via hole; 24. Second heat dissipation rib; 25. First cone; 26. Second cone; 3. Pin; 31. First pin portion; 32. Second pin portion; 33. First conical groove; 34. Second conical groove; A. Plug-in groove; 4. Bolt; 5. Nut; 6. Washer. DETAILED DESCRIPTION

[0045] In order to make the technical problems, technical solutions and beneficial effects solved by the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0046] See also Figures 1 to 7 A brake disc provided by an embodiment of the utility model comprises a first disc body 1, a second disc body 2 and a latch 3. The first disc body 1 and the second disc body 2 are annular. A first plug-in rib 11 protruding toward the second disc body 2 is arranged at an outer edge of the first disc body 1 on one side facing the second disc body 2. A second plug-in rib 21 protruding toward the first disc body 1 is arranged at an outer edge of the second disc body 2 on one side facing the first disc body 1.

[0047] A first slot 111 is provided on the first plug-in rib 11, and a second slot 211 is provided on the second plug-in rib 21. The first plug-in rib 11 and the second plug-in rib 21 are abutted against relative surfaces so that the first slot 111 and the second slot 211 are combined to form a plug-in slot A, and the plug-in slot A has an outer end opening facing the radial outer side of the brake disc; the pin 3 is interference fit in the plug-in slot A to fix the outer ring of the first disc body 1 and the outer ring of the second disc body 2.

[0048] According to the brake disc of the embodiment of the utility model, the pin 3 is inserted in the insertion groove A with interference fit to fix the outer ring of the first disc body 1 and the outer ring of the second disc body 2, thereby realizing the circumferential, axial and radial limitation of the outer ring of the first disc body 1 and the outer ring of the second disc body 2. The outer ring of the first disc body 1 and the outer ring of the second disc body 2 are firmly connected, and looseness between the outer ring of the first disc body 1 and the outer ring of the second disc body 2 can be avoided.

[0049] The first plug-in rib 11 and the second plug-in rib 21 are also used for heat dissipation of the brake disc.

[0050] In one embodiment, see Figure 6 and Figure 7 The latch 3 has a first pin portion 31 that matches the shape of the first slot 111 and a second pin portion 32 that matches the shape of the second slot 211 . The first pin portion 31 is inserted into the first slot 111 , and the second pin portion 32 is inserted into the first slot 211 .

[0051] In one embodiment, see Figure 6 and Figure 7 , the width of the first slot 111 gradually increases in the direction away from the second slot 211, and the width of the second slot 211 gradually increases in the direction away from the first slot 111, so that the width of the plug-in slot A gradually increases from the junction of the first slot 111 and the second slot 211 to both sides. The shape of the plug pin 3 matches the shape of the plug-in slot A, so that when the plug pin 3 is inserted into the plug-in slot A with interference fit, the binding force between the plug pin 3 and the plug-in slot A prevents the outer ring of the first disc body 1 and the outer ring of the second disc body 2 from moving relative to each other in the radial direction of the brake disc. In addition, the width of the plug-in slot A gradually increases from the junction of the first slot 111 and the second slot 211 to both sides, so that the plug pin 3 itself cannot move along the axial direction of the brake disc, thereby preventing the outer ring of the first disc body 1 and the outer ring of the second disc body 2 from moving relative to each other in the axial and circumferential directions of the brake disc.

[0052] In one embodiment, the first slot 111 and the second slot 211 are trapezoidal, and the top of the first slot 111 (the top surface of the trapezoid) is connected to the top of the second slot 211 (the top surface of the trapezoid); the first pin portion 31 and the second pin portion 32 are trapezoidal. In this way, the plug pin 3 and the plug slot A adopt a similar wedge-shaped plug-in fit, and the connection is stable.

[0053] In a preferred embodiment, the cross-sectional shapes of the first slot 111 and the second slot 211 are isosceles trapezoids, and the cross-sectional shapes of the first pin portion 31 and the second pin portion 32 are isosceles trapezoids. Figure 6 and Figure 7As shown, the first pin portion 31 is connected to one side of the second pin portion 32 to form a first tapered groove 33, and the first pin portion 31 is connected to the other side of the second pin portion 32 to form a second tapered groove 34. After the first plug-in rib 11 and the second plug-in rib 21 are connected, the first tapered portion 25 and the second tapered portion 26 are respectively formed on both sides of the width of the plug-in groove A. When the plug 3 is inserted into the plug-in groove A, the first tapered portion 25 is accommodated in the first tapered groove 33, and the second tapered portion 26 is accommodated in the second tapered groove 34. The first tapered groove 33 and the second tapered groove 34 provide movement guidance for the plug 3 when it is inserted, and the displacement of the first plug-in rib 11 and the second plug-in rib 21 along the axial direction of the brake disc is limited. After the plug 3 is plugged in place, the plug 3 is fixed in the plug-in groove A by means of interference hot fitting. The plug 3 is combined with the first plug-in rib 11 and the second plug-in rib 21, so that the outer ring of the first disc body 1 and the outer ring of the second disc body 2 are fixed.

[0054] Of course, in other embodiments, the cross-sectional shape of the first slot 111 and the second slot 211 may also be a right-angled trapezoid, and the cross-sectional shape of the first pin portion 31 and the second pin portion 32 may be a right-angled trapezoid.

[0055] Of course, in other embodiments, the cross-sectional shape of the first slot 111 and the second slot 211 may also be a rhombus, and the cross-sectional shape of the first pin portion 31 and the second pin portion 32 may also be a rhombus.

[0056] Of course, in other embodiments, the cross-sectional shape of the first slot 111 and the second slot 211 may also be a defective circle with an arc angle greater than 180 degrees, and the cross-sectional shape of the first pin portion 31 and the second pin portion 32 may be a defective circle with an arc angle greater than 180 degrees.

[0057] Of course, the cross-sectional shapes of the first slot 111 and the second slot 211 may also be other shapes as long as they can limit the axial, radial and circumferential displacements of the outer rings of the first disk body 1 and the second disk body 2 .

[0058] In one embodiment, the plurality of the latch pins 3 are provided, the plurality of the first plugging ribs 11 are provided, and the plurality of the second plugging ribs 21 are provided. The plurality of the first plugging ribs 11 are arranged at intervals along the circumferential direction of the first disc body 1, and the plurality of the second plugging ribs 21 are arranged at intervals along the circumferential direction of the second disc body 2; each of the first plugging ribs 11 abuts against the opposite surface of the second plugging rib 21 directly facing it, so that the first slots 111 of the plurality of the first plugging ribs 11 and the second slots 211 of the plurality of the second plugging ribs 21 are combined to form a plurality of plugging slots A arranged at intervals along the circumferential direction of the brake disc, and each of the latch pins 3 is inserted in the corresponding plugging slot A with interference fit. In this way, the outer ring of the first disc body 1 and the outer ring of the second disc body 2 are fixed at multiple positions in the circumferential direction, further preventing the outer ring of the first disc body 1 and the outer ring of the second disc body 2 from loosening.

[0059] In one embodiment, see Figure 3 and Figure 4 The first disc body 1 is provided with a first connecting rib 12 protruding toward the second disc body 2 on one side thereof facing the second disc body 2, and the second disc body 2 is provided with a second connecting rib 22 protruding toward the first disc body 1 on one side thereof facing the first disc body 1, and the first connecting rib 12 abuts against the opposite surfaces of the second connecting rib 22; and further includes a connecting assembly, which is used to fix the first disc body 1 and the second disc body 2 at the junction of the first connecting rib 12 and the second connecting rib 22 along the axial direction of the brake disc.

[0060] See also Figure 3 and Figure 4 The first disc body 1 is provided with a first through hole 13 penetrating the first connecting rib 12 along the axial direction of the brake disc, and the second disc body 2 is provided with a second through hole 23 penetrating the second connecting rib 22 along the axial direction of the brake disc; the connecting assembly includes a bolt 4 and a nut 5, the bolt 4 passes through the first through hole 13 and the second through hole 23, and the nut 5 is threadedly connected to the end of the bolt 4 passing through the second disc body 2 to fix the first disc body 1 and the second disc body 2 along the axial direction of the brake disc.

[0061] In one embodiment, see Figure 1 The connection assembly further includes a gasket 6, which is arranged between the head of the bolt 4 and a surface of the first disk body 1 on one side away from the second disk body 2. The gasket 6 can prevent the bolt 4 from slipping and increase the connection strength.

[0062] In a preferred embodiment, the first connecting rib 12 is disposed at the radial inner edge of the first disc body 1, and the second connecting rib 22 is disposed at the radial inner edge of the second disc body 2, so that the connecting assembly fixes the inner ring of the first disc body 1 and the inner ring of the second disc body 2 along the axial direction of the brake disc. In this way, the inner and outer rings of the brake disc are fixed, and the inner and outer rings of the first disc body 1 and the second disc body 2 will not loosen.

[0063] In a preferred embodiment, the connecting components are provided in plurality, the first connecting ribs 12 are provided in plurality, and the second connecting ribs 22 are provided in plurality, the plurality of the first connecting ribs 12 are arranged at intervals along the circumferential direction of the first disk body 1, and the plurality of the second connecting ribs 22 are arranged at intervals along the circumferential direction of the second disk body 2; each of the first connecting ribs 12 abuts against the relative surface of the second connecting rib 22 directly opposite to it.

[0064] The first connecting ribs 12 and the second connecting ribs 22 are also used for heat dissipation of the brake disc.

[0065] In one embodiment, see Figure 3 , Figure 4 and Figure 6 The first disc body 1 is provided with a plurality of first heat dissipation ribs 14 protruding toward the second disc body 2 on one side thereof facing the second disc body 2, and the second disc body 2 is provided with a plurality of second heat dissipation ribs 24 protruding toward the first disc body 1 on one side thereof facing the first disc body 1, and each first heat dissipation rib 14 abuts against the opposite surface of the second heat dissipation rib 24 it faces. The first heat dissipation ribs 14 and the second heat dissipation ribs 24 are used for heat dissipation of the brake disc.

[0066] In a preferred embodiment, a plurality of the first heat dissipation ribs 14 are distributed in a ring shape, and a plurality of the second heat dissipation ribs 24 are distributed in a ring shape.

[0067] In a preferred embodiment, along the radial direction of the first disk body 1 , there are a plurality of first heat dissipation ribs 14 arranged in a straight line; along the radial direction of the second disk body 2 , there are a plurality of second heat dissipation ribs 24 arranged in a straight line.

[0068] In one embodiment, see Figures 1 to 5 The first disk body 1 includes a first outer disk 1a and a first inner disk 1b, and the first outer disk 1a is attached to a side surface of the first inner disk 1b away from the second disk body 2; the second disk body 2 includes a second outer disk 2a and a second inner disk 2b, and the second outer disk 2a is attached to a side surface of the second inner disk 2b away from the first disk body 1.

[0069] The first outer disk 1a and the first inner disk 1b are in annular shape, the second outer disk 2a is in annular shape, the second inner disk 2b is in a cap shape, the second inner disk 2b includes a second inner disk body 21b and a disk cap 22b, the second inner disk body 21b is in annular shape, the bottom of the disk cap 22b is connected to the inner ring of the second inner disk body 21b, the disk cap 22b protrudes in a direction away from the second outer disk 2a and passes through the inner holes of the first inner disk 1b and the first outer disk 1a. The side of the disk cap 22b away from the second outer disk 2a is used to connect with the wheel hub, and the side of the disk cap 22b close to the second outer disk 2a is used to connect with the bearing flange. The disk cap 22b can be integrally formed with the second inner disk body 21b, or they can be formed separately and then fixed together.

[0070] The inner ring of the first outer disk 1a is provided with a plurality of first through holes 131, and the inner ring of the first inner disk 1b is provided with a plurality of second through holes 132, the second through holes 132 penetrate the first connecting rib 12, and the first through holes 131 are connected with the second through holes 132 facing each other to form a first through hole 13. The inner ring of the second outer disk 2a is provided with a plurality of third through holes 231, and the inner ring of the second inner disk 2b is provided with a plurality of fourth through holes 232, the fourth through holes 132 penetrate the second connecting rib 22, and the third through holes 231 are connected with the second through holes 232 facing each other to form a second through hole 23.

[0071] The material density of the first outer disc 1a is greater than that of the first inner disc 1b, and the material density of the second outer disc 2a is greater than that of the second inner disc 2b. In this way, the weight of the first inner disc 1b and the second inner disc 2b can be reduced, which is conducive to lightweighting of the brake disc.

[0072] The friction coefficient of the first outer disc 1a is greater than the material density of the first inner disc 1b, and the friction coefficient of the second outer disc 2a is greater than the material density of the second inner disc 2b. The surface of the first outer disc 1a that faces away from the second disc body 2 is a first friction surface for frictionally cooperating with one of the friction plates of the brake device, and the surface of the second outer disc 2a that faces away from the first disc body 1 is a second friction surface for frictionally cooperating with the other friction plate of the brake device. In this way, good braking performance is achieved while ensuring the lightweight of the brake disc.

[0073] In a preferred embodiment, the first outer disk 1a is made of cast iron, such as HT250, HT150 or HT200. The first inner disk 1b is made of aluminum alloy, aluminum alloy ceramic or carbon fiber ceramic.

[0074] In a preferred embodiment, the second outer disk 2a is made of cast iron, such as HT250, HT150 or HT200. The second inner disk 2b is made of aluminum alloy, aluminum alloy ceramic or carbon fiber ceramic.

[0075] The density of aluminum alloy, aluminum alloy ceramic or carbon fiber ceramic is much lower than that of cast iron, so that the first inner disc 1b and the second inner disc 2b are lighter. Compared with the brake disc made of cast iron, the composite multilayer standard disc of this embodiment is lighter.

[0076] Preferably, the first plug-in rib 11 of the first disk body 1 and the second plug-in rib 21 on the second disk body 2 have the same structure and are symmetrically arranged with respect to the fitting surface of the two, the first connecting rib 12 of the first disk body 1 and the second connecting rib 22 on the second disk body 2 have the same structure and are symmetrically arranged with respect to the fitting surface of the two, and the first heat dissipation rib 14 of the first disk body 1 and the second heat dissipation rib 24 on the second disk body 2 have the same structure and are symmetrically arranged with respect to the fitting surface of the two.

[0077] The first plugging rib 11, the first connecting rib 12, and the first heat dissipation rib 14 have the same protruding height, and the second plugging rib 21, the second connecting rib 22, and the second heat dissipation rib 24 have the same protruding height. Since it is necessary to make grooves on the first plugging rib 11 and holes on the first connecting rib 12, the volumes of the first plugging rib 11 and the first connecting rib 12 are greater than the volumes of the first heat dissipation rib 14. Since it is necessary to make grooves on the second plugging rib 21 and holes on the second connecting rib 22, the volumes of the second plugging rib 21 and the second connecting rib 22 are greater than the volumes of the second heat dissipation rib 24.

[0078] The brake disc of the above embodiment is a ventilated disc, and the heat of the first disc body 1 is dissipated to the ventilation space between the first disc body 1 and the second disc body 2 through the first plug-in rib 11, the first connecting rib 12, and the first heat dissipation rib 14. The heat of the second disc body 2 is dissipated to the ventilation space between the first disc body 1 and the second disc body 2 through the second plug-in rib 21, the second connecting rib 22, and the second heat dissipation rib 24.

[0079] The brake disc of the above embodiment is processed and assembled as follows:

[0080] First, the embryo of the first inner plate 1b is machined to construct the first plug rib 11, the first connecting rib 12, the first heat dissipation rib 14, the first through hole 13 and the first slot 111, and the embryo of the second inner plate 2b is machined to construct the second plug rib 21, the second connecting rib 22, the second heat dissipation rib 24, the second through hole 23 and the second slot 211.

[0081] During the assembly process, the gasket 6 is first placed on the outside of the first through hole 13, and then the bolt 4 is passed through the gasket 6, the first outer disk 1a, the first inner disk 1b, the second inner disk 2b and the second outer disk 2a in sequence. Finally, the nut 5 is threadedly connected to the end of the bolt 4 that passes through the second disk body 2 and tightened to fix the inner ring of the first disk body 1 and the inner ring of the second disk body 2.

[0082] Then, insert the pin 3 from the outer end opening of the insertion slot A along the Figure 6 The pin 3 is inserted into the insertion slot A in the direction of the arrow B in the figure, and the pin 3 and the insertion slot A are heat-fitted by interference fit to fix the outer ring of the first disk body 1 and the outer ring of the second disk body 2.

[0083] Furthermore, the inner and outer circles of the first plate body 1 and the second plate body 2 are fixed.

[0084] Therefore, the brake disc of this embodiment is firstly constructed by mechanical processing to form the first plugging rib 11, the first connecting rib 12, the first heat dissipating rib 14, the first through hole 13 and the first slot 111, the second plugging rib 21, the second connecting rib 22, the second heat dissipating rib 24, the second through hole 23 and the second slot 211, and then the first disc body 1 and the second disc body 2 are connected by the bolt 4 and the latch 3. In this way, the shapes of the first heat dissipating rib 14 and the second heat dissipating rib 24 can be flexibly designed, and the design space is large. The first heat dissipating rib 14 and the second heat dissipating rib 24 can be made into curved ribs, oblique ribs and diamond ribs. Compared with the prior art that can only design straight ventilation slots, curved ribs, oblique ribs and diamond ribs can improve the heat dissipation performance of the brake disc.

[0085] In addition, the embodiment of the utility model further provides a brake device, comprising a brake clamp and a brake disc of the above embodiment, wherein the brake clamp is used for braking the brake disc. The brake clamp can be a floating caliper type or a fixed caliper type.

[0086] An embodiment of the utility model further provides a vehicle, comprising the braking device of the above embodiment.

[0087] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A brake disc, characterized in that: The first disk body and the second disk body are annular, and a first plugging rib protruding toward the second disk body is provided at an outer edge of the first disk body facing the second disk body, and a second plugging rib protruding toward the first disk body is provided at an outer edge of the second disk body facing the first disk body; The first plug-in rib is provided with a first slot, the second plug-in rib is provided with a second slot, the first plug-in rib abuts against the opposite surface of the second plug-in rib, so that the first slot and the second slot are combined to form a plug-in slot, and the plug-in slot has an outer end opening facing the radial outer side of the brake disc; The latch is inserted into the insertion slot with interference fit to fix the outer ring of the first disk body and the outer ring of the second disk body.

2. The brake disc according to claim 1, characterized in that The latch has a first pin portion that matches the shape of the first slot and a second pin portion that matches the shape of the second slot. The first pin portion is inserted into the first slot, and the second pin portion is inserted into the first slot.

3. The brake disc according to claim 2, characterized in that The width of the first slot gradually increases in a direction away from the second slot, and the width of the second slot gradually increases in a direction away from the first slot, so that the width of the plug-in slot gradually increases from the junction of the first slot and the second slot to both sides.

4. The brake disc according to claim 2, characterized in that The first slot and the second slot are trapezoidal, and the top of the first slot is connected to the top of the second slot; The first pin portion and the second pin portion are trapezoidal in shape.

5. The brake disc according to any one of claims 1 to 4, characterized in that: There are a plurality of the latch pins, a plurality of the first plugging ribs, and a plurality of the second plugging ribs. The plurality of the first plugging ribs are arranged at intervals along the circumferential direction of the first disk body, and the plurality of the second plugging ribs are arranged at intervals along the circumferential direction of the second disk body. Each of the first plug-in ribs abuts against the relative surface of the second plug-in rib facing it, so that the first slots of multiple first plug-in ribs and the second slots of multiple second plug-in ribs are combined to form a plurality of plug-in grooves arranged at intervals along the circumferential direction of the brake disc, and each of the pins is interference fit in the corresponding plug-in groove.

6. The brake disc according to claim 1, characterized in that A first connecting rib protruding toward the second disc body is provided on one side of the first disc body facing the second disc body, and a second connecting rib protruding toward the first disc body is provided on one side of the second disc body facing the first disc body, and the first connecting rib abuts against the opposite surfaces of the second connecting rib; and a connecting assembly is also included, which is used to fix the first disc body and the second disc body at the junction of the first connecting rib and the second connecting rib along the axial direction of the brake disc.

7. The brake disc according to claim 6, characterized in that The first disc body is provided with a first through hole penetrating the first connecting rib along the axial direction of the brake disc, and the second disc body is provided with a second through hole penetrating the second connecting rib along the axial direction of the brake disc; The connecting assembly includes a bolt and a nut. The bolt passes through the first through hole and the second through hole. The nut is threadedly connected to the end of the bolt that passes through the second disc body to fix the first disc body and the second disc body along the axial direction of the brake disc.

8. The brake disc according to claim 6, characterized in that The first connecting rib is arranged at the radial inner edge of the first disc body, and the second connecting rib is arranged at the radial inner edge of the second disc body, so that the connecting assembly fixes the inner ring of the first disc body and the inner ring of the second disc body along the axial direction of the brake disc.

9. The brake disc according to any one of claims 6 to 8, characterized in that: The connecting assembly is provided in plurality, the first connecting ribs are provided in plurality, the second connecting ribs are provided in plurality, the plurality of the first connecting ribs are arranged at intervals along the circumferential direction of the first disk body, and the plurality of the second connecting ribs are arranged at intervals along the circumferential direction of the second disk body; Each of the first connecting ribs abuts against an opposite surface of the second connecting rib facing it.

10. The brake disc according to claim 1, characterized in that A plurality of first heat dissipation ribs protruding toward the second disk body are arranged on one side of the first disk body facing the second disk body, and a plurality of second heat dissipation ribs protruding toward the first disk body are arranged on one side of the second disk body facing the first disk body, and each of the first heat dissipation ribs abuts against the relative surface of the second heat dissipation rib directly facing it.

11. The brake disc according to claim 10, characterized in that A plurality of the first heat dissipation ribs are distributed in a ring shape, and a plurality of the second heat dissipation ribs are distributed in a ring shape; and / or, Along the radial direction of the first disk body, there are a plurality of the first heat dissipation ribs arranged in a straight line; along the radial direction of the second disk body, there are a plurality of the second heat dissipation ribs arranged in a straight line.

12. The brake disc according to claim 1, characterized in that The first disk body includes a first outer disk and a first inner disk, and the first outer disk is attached to a side surface of the first inner disk away from the second disk body; the second disk body includes a second outer disk and a second inner disk, and the second outer disk is attached to a side surface of the second inner disk away from the first disk body.

13. The brake disc according to claim 12, characterized in that The material density of the first outer disk is greater than the material density of the first inner disk, and the material density of the second outer disk is greater than the material density of the second inner disk; and / or, The friction coefficient of the first outer disk is greater than the friction coefficient of the first inner disk, and the friction coefficient of the second outer disk is greater than the friction coefficient of the second inner disk.

14. The brake disc according to claim 12, characterized in that The first outer disk is made of cast iron, and the first inner disk is made of aluminum alloy, aluminum alloy ceramic or carbon fiber ceramic; and / or, The second outer disk is made of cast iron, and the second inner disk is made of aluminum alloy, aluminum alloy ceramic or carbon fiber ceramic.

15. A braking device, characterized in that: It comprises a brake insert and a brake disc as claimed in any one of claims 1 to 14, wherein the brake insert is used for braking the brake disc.

16. A vehicle, characterized in that: A brake disc comprising any one of claims 1 to 14.

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