Composite brake disc

Abstract

The utility model relates to a composite brake disc. The brake disc solves the problems that in the prior art, a brake disc generates high temperature during long-time braking or intermittent continuous braking, timely and uniform heat dissipation is difficult, and the braking effect is prone to being affected. The brake disc comprises a brake disc body, the brake disc body is provided with an upper disc body and a lower disc body which are symmetrically arranged, the upper disc body and the lower disc body are integrally formed through a rigid connecting base, a stamping supporting assembly is arranged between the upper disc body and the lower disc body, and heat conduction structures are arranged in the upper disc body, the lower disc body and the rigid connecting base in a penetrating mode. One end of the heat conducting structure is provided with a connecting flange and the other end is provided with a radiating cylinder. The automobile hub has the advantages of being good in friction toughness, stable in structure and good in heat dissipation effect.

Description

Technical Field

[0001] The utility model relates to the technical field of brake components, in particular to a composite brake disc. Background Art

[0002] The brake is used in the braking system to hinder the movement or movement trend of the vehicle. The brake disc is a rotating element in the friction pair of the disc brake, and its shape is a metal disc working on both ends. In addition to having the strength, rigidity and wear resistance required as a component, it should also have the highest and most stable friction coefficient, as well as excellent heat dissipation and heat capacity. Traditional brake discs are mostly made of gray cast iron. The weight is large within the given boundaries, and the thermal expansion and deformation are large, which makes it difficult to meet the potential demand for lightweight commercial vehicles; in addition, the existing brake discs of high-load vehicles generate high temperatures during long-term braking or intermittent continuous braking, which is difficult to dissipate heat in a timely and uniform manner, which easily affects the braking effect.

[0003] In order to solve the deficiencies of the prior art, people have conducted long-term exploration and proposed various solutions. For example, a Chinese patent document discloses a composite brake disc [CN202111231409.0], which includes a disc body and a connector cast together by solid-liquid composite. The disc body is an annular structure, the inner side of the disc body is an annular side wall, the surface of the side wall is provided with a plurality of evenly distributed vents, one end of the connector is provided with a plurality of evenly distributed composite spokes extending into the side wall, the front end of the composite spoke is liquid-compounded with the disc body, and between each two composite spokes is a gap connected to the vent. The materials of the disc body and the connector are different, and they meet different performances respectively. The disc body has a high friction coefficient and good wear resistance, and the connector has good comprehensive performance. The two parts are cast together by solid-liquid composite, which improves the overall mechanical properties of the brake disc.

[0004] The above solution has solved to a certain extent the problem in the prior art that the brake disc is heavy and cannot meet the potential demand for lightweighting of commercial vehicles. However, the solution still has many shortcomings. For example, the brake disc of a high-load vehicle generates a high temperature during long-term braking or intermittent continuous braking, which makes it difficult to dissipate heat in a timely and uniform manner, and easily affects the braking effect. Summary of the invention

[0005] The purpose of the utility model is to provide a composite brake disc in view of the above problems.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a composite brake disc, including a brake disc body, the brake disc body respectively having an upper disc body and a lower disc body which are symmetrically arranged, the upper disc body and the lower disc body being integrally formed through a rigid connecting seat, a stamping support assembly being provided between the upper disc body and the lower disc body, and a heat-conducting structure being penetrated through the upper disc body, the lower disc body and the rigid connecting seat, a connecting flange being provided at one end of the heat-conducting structure and a heat-dissipating cylinder being provided at the other end.

[0007] In the above-mentioned composite brake disc, filling cavities are provided on the inner circumferential sides of the upper disc body and the lower disc body, and the upper disc body, the rigid connection seat and the lower disc body are provided with clearance channels for the heat conduction structure to pass through, and the rigid connection seat is provided with a loading cavity.

[0008] In the above-mentioned composite brake disc, the stamping support assembly includes heat-conducting seats respectively arranged in the filling cavities of the upper disc body and the lower disc body, heat transfer columns are connected between the heat-conducting seats, and the filling cavities of the upper disc body and the lower disc body are filled with metal casting liquid and solidified and closed.

[0009] In the above-mentioned composite brake disc, the heat-conducting structure includes a heat transfer seat arranged in the loading cavity, and the heat transfer seat is provided with a plurality of through holes for the heat transfer columns to pass through.

[0010] In the above-mentioned composite brake disc, an annular groove is provided between the upper disc body and the lower disc body and on the circumferential outer wall of the rigid connection seat. A plurality of fixing screws are provided circumferentially in the annular groove, and one end of the fixing screw is connected to the heat transfer seat provided in the loading cavity.

[0011] In the above-mentioned composite brake disc, a plurality of threaded fixing holes corresponding to the fixing screws are arranged on the heat transfer seat, and a heat dissipation through hole is arranged on the inner side of the fixing screw in the circumferential direction.

[0012] In the above-mentioned composite brake disc, the heat dissipation cylinder is arranged in the clearance channel of the lower disc body, the axial outer wall of the heat dissipation cylinder is provided with a plurality of heat dissipation fins arranged at equal distances, and one end of the heat dissipation cylinder is fixedly connected to the above-mentioned heat transfer seat.

[0013] In the above-mentioned composite brake disc, one end of the heat dissipation cylinder connected to the heat transfer seat has a sealing portion, and a liquid cooling cavity is provided on the inner side of the heat dissipation cylinder in the circumferential direction, and the liquid cooling cavity is loaded with coolant. The end surface of the heat dissipation cylinder away from the sealing portion is provided with a supply hole for injecting and discharging coolant.

[0014] In the above-mentioned composite brake disc, a plug-in positioning cylinder is connected in the clearance channel of the upper disc body, one end of the plug-in positioning cylinder is connected to the heat transfer seat and the other end is connected to the above-mentioned connecting flange.

[0015] In the above-mentioned composite brake disc, the plug-in positioning cylinder has a plug-in cavity on its circumferential inner side, and a plurality of plug-in grooves are provided on the circumferential inner wall of the plug-in cavity. The end of the plug-in positioning cylinder connected to the heat transfer seat has a heat insulation portion.

[0016] Compared with the existing technology, the advantages of the utility model are: strong structure, good friction resistance, and by pouring molten metal in the brake disc body to strengthen the structure and cooperate with heat transfer columns for friction support, the structure is stable and the friction toughness is good. Secondly, the high friction temperature generated by the brake disc body during braking is diffused circumferentially through the heat transfer columns and the heat transfer seat and cooled by the coolant, which improves the heat dissipation effect and prevents the high temperature generated by continuous braking friction from affecting the braking effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a cross-sectional view of the utility model;

[0019] Figure 3 It is a cross-sectional view of the brake disc body in the utility model;

[0020] Figure 4 It is a schematic diagram of the heat conduction structure in the utility model;

[0021] Figure 5 It is a schematic diagram of the structure when the heat transfer seat and the heat dissipation cylinder in the utility model are connected;

[0022] Figure 6 It is a schematic diagram of the internal structure of the heat dissipation cylinder in the utility model;

[0023] Figure 7 It is a schematic diagram of the internal structure of the plug-in positioning cylinder in the utility model;

[0024] In the figure: brake disc body 1, upper disc body 11, lower disc body 12, filling cavity 13, make way channel 14, rigid connecting seat 2, loading cavity 21, stamping support assembly 3, heat transfer seat 31, heat transfer column 32, heat transfer structure 4, heat transfer seat 41, through hole 42, annular groove 43, fixing screw 44, threaded fixing hole 45, heat dissipation through hole 46, connecting flange 5, heat dissipation cylinder 6, heat dissipation fins 61, sealing part 62, liquid cooling cavity 63, supply and release hole 64, plug-in positioning cylinder 7, plug-in cavity 71, plug-in groove 72, and heat insulation part 73. DETAILED DESCRIPTION

[0025] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0026] like Figure 1-7As shown, a composite brake disc includes a brake disc body 1, which has an upper disc body 11 and a lower disc body 12 which are symmetrically arranged, the upper disc body 11 and the lower disc body 12 are integrally formed through a rigid connecting seat 2, a stamping support component 3 is provided between the upper disc body 11 and the lower disc body 12, and a heat conducting structure 4 is penetrated through the upper disc body 11, the lower disc body 12 and the rigid connecting seat 2, and a connecting flange 5 is provided at one end of the heat conducting structure 4 and a heat dissipation cylinder 6 is provided at the other end.

[0027] Among them, the upper disk body 11 and the lower disk body 12 are both provided with a filling cavity 13 on the inner side thereof, and the upper disk body 11, the rigid connection seat 2 and the lower disk body 12 are provided with a clearance channel 14 for the heat conductive structure 4 to pass through, and the rigid connection seat 2 is provided with a loading cavity 21.

[0028] Obviously, the stamping support assembly 3 includes heat-conducting seats 31 respectively arranged in the filling cavities 13 of the upper disk body 11 and the lower disk body 12, heat transfer columns 32 are connected between the heat-conducting seats 31, and the filling cavities 13 of the upper disk body 11 and the lower disk body 12 are filled with metal casting liquid and solidified and sealed.

[0029] Such a configuration is used to improve the friction toughness and structural strength of the upper plate body 11 and the lower plate body 12, and the heat-conducting seat 31 can also be used as a support column to improve the support strength.

[0030] Furthermore, the heat-conducting structure 4 includes a heat transfer seat 41 disposed in the loading cavity 21 , and the heat transfer seat 41 is provided with a plurality of through holes 42 for the heat transfer columns 32 to pass through.

[0031] The heat transfer pillars 32 transfer the heat of the upper plate 11 and the lower plate 12 to the heat transfer seat 41 .

[0032] Furthermore, an annular groove 43 is provided between the upper disk body 11 and the lower disk body 12 and on the circumferential outer wall of the rigid connection seat 2. A plurality of fixing screws 44 are circumferentially provided in the annular groove 43, and one end of the fixing screw 44 is connected to the heat transfer seat 41 provided in the loading chamber 21.

[0033] Specifically, the heat transfer seat 41 is provided with a plurality of threaded fixing holes 45 corresponding to the fixing screws 44 , and the fixing screws 44 are provided with heat dissipation through holes 46 on the inner side in the circumferential direction.

[0034] The fixing screws 44 are used to fix the heat transfer seat 41 circumferentially to ensure its stability. Secondly, the heat transfer seat 41 can be continuously circumferentially cooled through the heat dissipation holes 46, so that the upper plate body 11 and the lower plate body 12 are in a low temperature state.

[0035] More specifically, the heat dissipation cylinder 6 is disposed in the clearance channel 14 of the lower plate 12 , a plurality of heat dissipation fins 61 are disposed equidistantly on the axial outer wall of the heat dissipation cylinder 6 , and one end of the heat dissipation cylinder 6 is fixedly connected to the above-mentioned heat transfer seat 41 .

[0036] In detail, one end of the heat dissipation cylinder 6 connected to the heat transfer seat 41 has a sealing portion 62, and a liquid cooling cavity 63 is provided on the inner side of the heat dissipation cylinder 6. The liquid cooling cavity 63 is loaded with cooling liquid, and the end surface of the heat dissipation cylinder 6 away from the sealing portion 62 is provided with a supply hole 64 for injecting and discharging cooling liquid.

[0037] The heat dissipation cylinder 6 is used in conjunction with the coolant in the liquid cooling chamber 63 to further improve the heat dissipation effect.

[0038] Preferably, a plug-in positioning cylinder 7 is connected in the clearance channel 14 of the upper disk body 11 , and one end of the plug-in positioning cylinder 7 is connected to the heat transfer seat 41 and the other end is connected to the above-mentioned connecting flange 5 .

[0039] In addition, the plug-in positioning cylinder 7 has a plug-in cavity 71 on its circumferential inner side, and a plurality of plug-in grooves 72 are provided on the circumferential inner wall of the plug-in cavity 71 . The end of the plug-in positioning cylinder 7 connected to the heat transfer seat 41 has a heat insulation portion 73 .

[0040] The heat insulating portion 73 is used to prevent heat from being conducted to the connecting shaft, and the plug-in groove 72 is used to align and plug in the raised portion of the outer wall of the connecting shaft, thereby improving the linkage effect of the circumferential rotation connection.

[0041] In summary, the principle of this embodiment is: by pouring metal casting liquid into the filling cavity 13 of the upper disk body 11 and the lower disk body 12 and solidifying and sealing it, and cooperating with the rigid support of the heat transfer column 32, the structural toughness and strength of the upper disk body 11 and the lower disk body 12 on both sides when subjected to friction force are improved; secondly, by arranging a heat transfer seat 41 in the loading cavity 21 in the rigid connecting seat 2 and fixing it circumferentially through a fixing screw 44 with a heat dissipation through hole 46, the heat of the heat transfer column 32 is guided to the rigid connecting seat 2 and circumferentially cooled by air through the heat dissipation through hole 46; at the same time, a heat dissipation cylinder 6 connected to the heat transfer seat 41 is inserted into the yield channel 14 of the lower disk body 12, and the heat dissipation is synchronously performed by using the heat dissipation fins 61 arranged on the circumferential outer wall of the heat dissipation cylinder 6 and the coolant in the liquid cooling cavity 63, thereby reducing the situation where the high temperature generated by continuous braking of the brake disc body 1 affects the braking effect.

[0042] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0043] Although the present invention uses more terms such as brake disc body 1, upper disc body 11, lower disc body 12, filling cavity 13, clearance channel 14, rigid connection seat 2, loading cavity 21, stamping support assembly 3, heat transfer seat 31, heat transfer column 32, heat transfer structure 4, heat transfer seat 41, through hole 42, annular groove 43, fixing screw 44, threaded fixing hole 45, heat dissipation through hole 46, connecting flange 5, heat dissipation cylinder 6, heat dissipation fin 61, sealing part 62, liquid cooling cavity 63, supply hole 64, plug-in positioning cylinder 7, plug-in cavity 71, plug-in groove 72, heat insulation part 73, etc., it does not exclude the possibility of using other terms. The use of these terms is only for the purpose of more conveniently describing and explaining the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

Claims

1. A composite brake disc, comprising a brake disc body (1), wherein the brake disc body (1) comprises an upper disc body (11) and a lower disc body (12) which are symmetrically arranged, characterized in that: The upper disk body (11) and the lower disk body (12) are integrally formed via a rigid connection seat (2); a stamping support assembly (3) is provided between the upper disk body (11) and the lower disk body (12); a heat-conducting structure (4) is provided inside the upper disk body (11), the lower disk body (12) and the rigid connection seat (2); a connecting flange (5) is provided at one end of the heat-conducting structure (4) and a heat-dissipating cylinder (6) is provided at the other end.

2. A composite brake disc according to claim 1, characterized in that: The upper disk body (11) and the lower disk body (12) are both provided with a filling cavity (13) on their circumferential inner sides, and a clearance channel (14) through which the heat-conducting structure (4) can pass is provided in the upper disk body (11), the rigid connection seat (2) and the lower disk body (12), and a loading cavity (21) is provided in the rigid connection seat (2).

3. A composite brake disc according to claim 2, characterized in that: The stamping support assembly (3) comprises heat-conducting seats (31) respectively arranged in the filling cavities (13) of the upper disk body (11) and the lower disk body (12), heat transfer columns (32) are connected between the heat-conducting seats (31), and the filling cavities (13) of the upper disk body (11) and the lower disk body (12) are filled with metal casting liquid and solidified and sealed.

4. A composite brake disc according to claim 3, characterized in that: The heat-conducting structure (4) comprises a heat-conducting seat (41) arranged in the loading cavity (21), and the heat-conducting seat (41) is provided with a plurality of through holes (42) through which the heat-conducting columns (32) can pass.

5. A composite brake disc according to claim 4, characterized in that: An annular groove (43) is provided between the upper disk body (11) and the lower disk body (12) and on the circumferential outer wall of the rigid connection seat (2). A plurality of fixing screws (44) are provided circumferentially in the annular groove (43), and one end of the fixing screw (44) is connected to a heat transfer seat (41) provided in the loading chamber (21).

6. A composite brake disc according to claim 5, characterized in that: The heat transfer seat (41) is provided with a plurality of threaded fixing holes (45) corresponding to the fixing screws (44), and a heat dissipation through hole (46) is provided on the inner side of the fixing screws (44) in the circumferential direction.

7. A composite brake disc according to claim 5, characterized in that: The heat dissipation cylinder (6) is arranged in the clearance channel (14) of the lower disk (12), and the axial outer wall of the heat dissipation cylinder (6) is provided with a plurality of heat dissipation fins (61) arranged at equal distances, and one end of the heat dissipation cylinder (6) is fixedly connected to the above-mentioned heat transfer seat (41).

8. A composite brake disc according to claim 7, characterized in that: The heat dissipation cylinder (6) has a sealing portion (62) at one end connected to the heat transfer seat (41), and a liquid cooling cavity (63) is provided on the inner side of the heat dissipation cylinder (6) in the circumferential direction. The liquid cooling cavity (63) is loaded with cooling liquid, and a supply hole (64) for injecting and discharging cooling liquid is provided on the end surface of the heat dissipation cylinder (6) away from the sealing portion (62).

9. A composite brake disc according to claim 7, characterized in that: A plug-in positioning cylinder (7) is connected to the clearance channel (14) of the upper disk body (11), one end of the plug-in positioning cylinder (7) is connected to the heat transfer seat (41) and the other end is connected to the above-mentioned connecting flange (5).

10. A composite brake disc according to claim 9, characterized in that: The plug-in positioning cylinder (7) has a plug-in cavity (71) on its circumferential inner side, and a plurality of plug-in grooves (72) are provided on the circumferential inner wall of the plug-in cavity (71). The end of the plug-in positioning cylinder (7) connected to the heat transfer seat (41) has a heat insulation portion (73).

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