Multilayer carbon ceramic brake disc, production equipment and production method

Abstract

The present application relates to the technical field of brake disc, especially to a multilayer carbon ceramic brake disc, a production equipment and a production method, the multilayer carbon ceramic brake disc comprises a structure function layer and friction function layers which are combined on two sides of the structure function layer, further comprises an assembling disc for mounting and connecting the structure function layer and the friction function layers, a friction compensation unit which is arranged in the structure function layer and used for compensating the performance of the friction function layers under high temperature, and a heat conduction unit which is arranged on the assembling disc and used for heat dissipation of the structure function layer; the heat dissipation mode of air cooling and water cooling is combined, the temperature rising rate of the brake disc is slowed down, the temperature of the brake disc is quickly reduced, the friction performance of the brake disc under high temperature can be automatically compensated, the friction performance of the brake disc is improved, the brake effect is guaranteed, the safety is higher, and the problems of single heat dissipation mode of the brake disc, poor cooling effect, high temperature still affecting the performance of the brake disc and poor safety are solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of brake discs, in particular to a multi-layer carbon ceramic brake disc, a production device and a production method. BACKGROUND

[0002] The carbon ceramic brake disc is made of carbon fiber reinforced silicon carbide-based composite material. The carbon ceramic brake disc combines the physical properties of carbon fiber and polycrystalline silicon carbide. The elongation at break of C / SiC material is from 0.1% to 0.3%, which is a very high value for ceramic materials. Brake disc is a key component of the braking system of the motor vehicle. During operation, a large amount of heat and abrasive material is generated due to friction, which causes the temperature to rise and the friction coefficient to decrease, and even causes thermal recession, resulting in unstable structure and safety hazards.

[0003] Chinese patent CN201711339467.9 discloses a brake disc preform, a preparation method thereof and a brake disc. The brake disc preform comprises a plurality of fiber plane unit layers stacked in a circular ring shape and interlayer fibers connecting the plurality of fiber plane unit layers. The brake disc preform is provided with at least one internal through hole and / or a surface channel. The internal through hole penetrates the plurality of fiber unit layers between the surface layers, the side walls or between the surface layers and the side walls of the brake disc preform. The surface channel is opened towards the inside of the brake disc preform. The two ends of the surface channel extend to the outside of the side wall formed by the edges of the plurality of fiber plane unit layers. The internal through hole or the surface channel forms a cross-section plane and a cross-section line with the fiber plane unit layer.

[0004] However, the heat dissipation mode of the brake disc in this technical solution is single, the cooling effect is not good, the high temperature still affects the performance of the brake disc, the safety is poor, and the existing assembled brake disc cannot realize automatic production, the precision is poor and the production efficiency is low. SUMMARY

[0005] The purpose of the present application is to solve the problems of single heat dissipation mode, poor cooling effect, high temperature affecting the performance of the brake disc and poor safety of the existing brake disc. The present application provides a multi-layer carbon ceramic brake disc. The friction compensation unit and the heat conduction unit cooperate to realize the heat dissipation mode of wind cooling and water cooling combination, slow down the temperature rising rate of the brake disc, quickly reduce the temperature of the brake disc, automatically compensate the friction performance of the brake disc in high temperature state, improve the friction performance of the brake disc, ensure the braking effect, and improve the safety.

[0006] To achieve the above purpose, the present application provides the following technical solutions:

[0007] The application discloses a multi-layer carbon ceramic brake disc, which comprises a structure function layer and friction function layers arranged on both sides of the structure function layer, and further comprises an assembling disc for connecting the structure function layer and the friction function layers, a friction compensation unit arranged in the structure function layer and used for compensating the performance of the friction function layer under high temperature, and a heat conduction unit arranged on the assembling disc and used for dissipating heat of the structure function layer.

[0008] Preferably, the structure function layer is internally provided with a cavity a for filling cooling liquid, and further comprises a plurality of groups of compensation holes arranged through the structure function layer along a circumferential direction and arranged in double rows along a radial direction, a plurality of groups of first mounting holes arranged through the structure function layer along the circumferential direction, a plurality of groups of first heat conduction holes arranged through the inner wall of the structure function layer along the circumferential direction, a heat conduction rod arranged in the inner wall of the first heat conduction hole and extending to the inside of the cavity a at one end, a first liquid injection hole arranged on the outer wall of the structure function layer, and a sealing plug arranged on the first liquid injection hole, wherein the friction compensation unit is fixedly arranged in the compensation hole and limits the heat conduction rod.

[0009] Preferably, the friction function layer is internally provided with an air cooling cavity, and further comprises a plurality of groups of heat dissipation holes arranged through the friction function layer along the circumferential direction and arranged in double rows along the radial direction, a plurality of groups of ventilation holes arranged through the outer wall of the friction function layer along the circumferential direction, and a plurality of groups of second mounting holes arranged through the friction function layer along the circumferential direction.

[0010] Preferably, the assembling disc comprises a flange disc, an inner ring arranged on the flange disc and matched with the inner wall of the structure function layer, a cavity b arranged in the flange disc and extending to the inside of the inner ring, a plurality of groups of second heat conduction holes arranged through the outer wall of the inner ring along the circumferential direction, a second liquid injection hole arranged on the outer wall of the flange disc, and a plurality of groups of third mounting holes arranged through the flange disc along the circumferential direction, wherein the heat conduction unit is fastened to the structure function layer, the friction function layer and the assembling disc through the third mounting holes, the second mounting holes and the first mounting holes, and guides the cooling liquid in the cavity a and the cooling liquid in the cavity b to exchange heat under high temperature.

[0011] Preferably, the friction compensation unit comprises two hollow plug columns fixed to each other through a connecting rod and matched with the compensation holes, a piston column arranged in the hollow plug column and matched with the heat dissipation hole, and a first elastic member arranged between the two piston columns.

[0012] As preferred, the heat-conducting unit comprises a hollow bolt, a plurality of groups of first overflow holes arranged on the hollow bolt and located inside the chamber a, a plurality of groups of second overflow holes arranged on the hollow bolt and located inside the chamber b, a plug threadedly arranged at the port of the hollow bolt, a second elastic member arranged on the plug, and a piston sheet arranged at one end of the second elastic member and located between the positions of the first overflow holes and the second overflow holes.

[0013] Another purpose of the present application is to provide a multi-layer carbon ceramic brake disc production equipment, which can quickly assemble the brake disc through the cooperation of the rotating grabbing mechanism and the processing mechanism, the structure function layer is accurately positioned during transfer, and each part can be accurately installed to the specified position, thereby ensuring the structural stability of the brake disc to realize the corresponding function and realizing the automatic assembly of the brake disc.

[0014] To achieve the above-mentioned purpose, the present application provides the following technical scheme:

[0015] A multi-layer carbon ceramic brake disc production equipment comprises a rotating grabbing mechanism, a feeding mechanism, a processing mechanism, a composite mechanism and an assembly mechanism arranged along the circumferential direction of the rotating grabbing mechanism.

[0016] The rotating grabbing mechanism comprises a turntable arranged on a rack, a plurality of groups of mechanical arms arranged at the output end of the turntable, and a jaw assembly arranged on the mechanical arm and used for positioning and grabbing the structure function layer for transfer.

[0017] The feeding mechanism comprises a workbench one, a first bearing assembly arranged on the workbench one and used for horizontally moving the structure function layer, and a positioning assembly arranged on the workbench one and used for positioning the structure function layer placed on the first bearing assembly.

[0018] As preferred, the processing mechanism comprises a workbench two, a second bearing assembly arranged on the workbench two and used for horizontally moving the structure function layer, a plug-in assembly arranged on the workbench two and used for sequentially bonding and fixing the friction compensation unit in the compensation hole, a penetrating assembly arranged on the workbench two and used for sequentially penetrating the heat-conducting rod from the first heat-conducting hole into the chamber a of the structure function layer, and an adjusting assembly arranged on the penetrating assembly and used for driving the structure function layer to rotate by a specified angle.

[0019] The composite mechanism comprises a workbench three, a third bearing assembly arranged on the workbench three and used for horizontally moving the structure function layer, a glue coating assembly arranged on the workbench three and used for coating glue on the structure function layer and the friction function layer, and a rotary force assembly arranged on the workbench three and used for driving the structure function layer to rotate, wherein the glue coating assembly avoids the compensation hole of the structure function layer and the heat dissipation hole of the friction function layer.

[0020] Preferably, the assembling mechanism comprises a fourth workbench, a fourth bearing assembly arranged on the fourth workbench and used for horizontally moving the structural functional layer, a tightening assembly arranged on the fourth workbench and used for fastening the structural functional layer and the assembling disc through the heat conduction unit, and an adjusting assembly arranged on the tightening assembly and used for driving the structural functional layer to rotate by a specified angle in sequence.

[0021] Another object of the present application is to provide a multi-layer carbon ceramic brake disc production method, which realizes the automatic production of the multi-layer carbon ceramic brake disc through the cooperation of the pretreatment process, the feeding process, the structural functional layer processing process, the compounding process, the assembling process and the liquid injection process.

[0022] To achieve the above object, the present application provides the following technical scheme:

[0023] A multi-layer carbon ceramic brake disc production method comprises the following steps:

[0024] Step one, the pretreatment process, carbon fiber filaments are carded into felt, impregnated with resin, hot-pressed and cured to form, and then low-temperature purification-high-temperature purification is performed to output a friction functional layer, and the structural functional layer is processed and formed through casting and drilling processes;

[0025] Step two, the feeding process, the structural functional layer is manually placed on the first bearing assembly, the positioning assembly positions the structural functional layer through the first mounting hole, the first bearing assembly horizontally moves the structural functional layer to a position below the jaw assembly, the rotating grabbing mechanism positions and grabs the structural functional layer through the jaw assembly to sequentially transfer the structural functional layer to the processing mechanism station, the compounding mechanism station and the assembling mechanism station;

[0026] Step three, the structural functional layer processing process, the second bearing assembly horizontally moves the structural functional layer to a position above the penetrating assembly, the adjusting assembly drives the structural functional layer to rotate by a specified angle in sequence, the penetrating assembly penetrates the heat conduction rods from the first heat conduction holes into the cavities a of the structural functional layer, and at the same time, the inserting assembly bonds and fixes the friction compensation units in the compensation holes in sequence, and the friction compensation units clamp and limit the heat conduction rods in the cavities a.

[0027] Step four, the composite process, manually place a friction function layer on the third bearing assembly first, the rotating force assembly positions the friction function layer through the second mounting hole, and then drives the friction function layer to rotate slowly through the second mounting hole, the glue coating assembly coats glue on the surface of the friction function layer, and avoids the heat dissipation hole, then the third bearing assembly moves the friction function layer horizontally to the position below the jaw assembly, the jaw assembly places a structural function layer on the friction function layer, and positions it through the rotating force assembly, so that the first mounting hole of the structural function layer and the second mounting hole of the friction function layer are connected, then the third bearing assembly moves the structural function layer horizontally to the position above the rotating force assembly, the glue coating assembly coats glue on the surface of the structural function layer, and avoids the compensation hole, then manually place another friction function layer on the structural function layer, and position it through the rotating force assembly, and then press and composite;

[0028] Step five, the assembly process, the fourth bearing assembly moves the composite structural function layer horizontally to the position above the adjusting assembly, manually places the assembly disc on the structural function layer, and positions it through the adjusting assembly, so that the third mounting hole of the assembly disc and the first mounting hole of the structural function layer are connected, the adjusting assembly drives the structural function layer, the friction function layer and the assembly disc to rotate synchronously by a specified angle, and the tightening assembly fastens the heat conduction unit in the third mounting hole of the assembly disc;

[0029] Step six, the liquid injection process, after assembly, manually remove the brake disc, open the first liquid injection hole on the outer circular wall of the structural function layer and the second liquid injection hole on the outer circular wall of the flange plate in sequence, fill the cooling liquid into the cavity a, and inject an appropriate amount of cooling liquid into the cavity b.

[0030] The beneficial effects of the present application are:

[0031] (1) The friction compensation unit and the heat conduction unit cooperate, on the one hand, from the direction of rapid heat dissipation, the heat dissipation mode of air cooling and water cooling combination makes the brake disc can autonomously cool down, slows down the temperature rising rate of the brake disc, quickly reduces the temperature of the brake disc, and greatly improves the heat dissipation effect of the brake disc; on the other hand, from the direction of friction performance, the friction performance of the brake disc under high temperature state can be automatically compensated, that is, the roughness of the brake disc surface is increased at high temperature, the friction performance of the brake disc is improved, the brake effect is guaranteed, and the safety is higher.

[0032] (2) The heat conduction rod and the assembly disc cooperate, on the one hand, the cooling liquid in the cavity b can be heat transferred with the cooling liquid in the cavity a through the heat conduction rod, which can continuously cool the structural function layer, facilitate the continuous heat dissipation of the friction function layer, and reduce the temperature rising rate of the brake disc; on the other hand, the heat conduction rod plays the role of reinforcing rib in the cavity a, increases the structural stability of the structural function layer, improves the rigidity of the brake disc, and enhances the resistance to deformation.

[0033] (3) The rotating grabbing mechanism and the processing mechanism cooperate to quickly assemble the brake disc, the structure function layer is accurately positioned during transfer, each part can be accurately installed to the specified position, the structure stability of the brake disc is ensured to realize the corresponding function, the automation degree is high, continuous production and processing can be realized, and the economic benefit of enterprises is improved.

[0034] In conclusion, the brake disc has the advantages of autonomous cooling, good friction performance, high safety, and the like. BRIEF DESCRIPTION OF DRAWINGS

[0035] Figure 1 It is a structural schematic view of a multi-layer carbon ceramic brake disc.

[0036] Figure 2 It is a structural schematic view of another view of the brake disc.

[0037] Figure 3 It is a structural schematic view of the structure function layer.

[0038] Figure 4 It is a structural schematic view of the structure function layer.

[0039] Figure 5 It is a structural schematic view of the friction function layer.

[0040] Figure 6 It is a structural schematic view of the assembled disc.

[0041] Figure 7 It is a structural schematic view of the friction compensation unit.

[0042] Figure 8 It is a transmission schematic view of the working of the friction compensation unit.

[0043] Figure 9 It is a structural schematic view of the heat conduction unit.

[0044] Figure 10 It is a transmission schematic view of the working of the heat conduction unit.

[0045] Figure 11 It is a structural schematic view of a multi-layer carbon ceramic brake disc production equipment.

[0046] Figure 12 It is a structural schematic view of the rotating grabbing mechanism.

[0047] Figure 13 It is a structural schematic view of the clamping jaw assembly.

[0048] Figure 14 It is a structural schematic view of the discharging mechanism.

[0049] Figure 15 It is a structural schematic view of the positioning assembly.

[0050] Figure 16 Structure diagram of the processing mechanism.

[0051] Figure 17 Structure diagram of the plug-in assembly.

[0052] Figure 18 Structure diagram of the adjustment assembly.

[0053] Figure 19 Structure diagram of the threading assembly.

[0054] Figure 20 Structure diagram of the composite mechanism.

[0055] Figure 21 Structure diagram of the rotary force assembly.

[0056] Figure 22 Structure diagram of the rubber coating assembly.

[0057] Figure 23 Structure diagram of the assembly mechanism.

[0058] Figure 24 Structure diagram of the first mounting unit.

[0059] Figure 25 Structure diagram of the second mounting unit.

[0060] Figure 26 Process flow diagram of a method for producing a multi-layer carbon ceramic brake disc. DETAILED DESCRIPTION

[0061] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0062] In the description of the present application, it needs to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0063] Embodiment one

[0064] As Figures 1-10 shown, the present embodiment provides a multi-layer carbon ceramic brake disc, which comprises a structural functional layer 01 and a friction functional layer 02 compounded on both sides of the structural functional layer 01, characterized in that it further comprises an assembly disc 03 for mounting and connecting the structural functional layer 01 and the friction functional layer 02, a friction compensation unit 04 arranged inside the structural functional layer 01 and used for compensating the performance of the friction functional layer 02 under high temperature state, and a heat conduction unit 05 arranged on the assembly disc 03 and used for heat dissipation of the structural functional layer 01.

[0065] It should be noted that the structural functional layer 01 is made of a material with good heat conduction performance, which ensures that the cooling liquid in the chamber a011 can transfer heat with the friction functional layer 02 through the structural functional layer 01.

[0066] It should also be noted that the two friction functional layers 02 are bonded and fixed on both sides of the structural functional layer 01 by adhesive with good heat conduction performance, which ensures that heat can be transferred between the friction functional layer 02 and the structural functional layer 01.

[0067] Further, as Figures 1-4As shown, the structural functional layer 01 is internally provided with a cavity a011 for filling cooling liquid, and further comprises a plurality of groups of compensation holes 012 penetratingly arranged on the structural functional layer 01 along the circumferential direction and each arranged in double rows along the radial direction, a plurality of groups of first mounting holes 013 penetratingly arranged on the structural functional layer 01 along the circumferential direction, a plurality of groups of first heat-conducting holes 014 penetratingly arranged on the inner wall of the structural functional layer 01 along the circumferential direction, a heat-conducting rod 015 arranged in the inner wall of the first heat-conducting hole 014 and extending to the inside of the cavity a011, a first liquid injection hole 016 provided on the outer wall of the structural functional layer 01, and a sealing plug arranged on the first liquid injection hole 016. The friction compensation unit 04 is fixedly bonded in the compensation hole 012 and limits the heat-conducting rod 015.

[0068] It is worth mentioning that the first heat-conducting hole 014 on the inner wall of the structural functional layer 01 and the second heat-conducting hole 034 on the outer wall of the inner ring 032 are sequentially connected.

[0069] It is worth mentioning that the heat-conducting rod 015 is uniformly distributed in the cavity a011 along the circumferential direction, and the end thereof is located in the first heat-conducting hole 014. On the one hand, the cooling liquid in the cavity b033 of the inner ring 032 can contact the end of the heat-conducting rod 015 through the second heat-conducting hole 034, that is, the cooling liquid in the cavity b033 can be heat-transferred to the cooling liquid in the cavity a011 through the heat-conducting rod 015, so as to continuously cool the structural functional layer 01, facilitate the continuous heat dissipation of the friction functional layer 02, and reduce the temperature rising rate of the brake disc. On the other hand, the heat-conducting rod 015 plays a role of a reinforcing rib in the cavity a011, increases the structural stability of the structural functional layer 01, improves the rigidity of the brake disc, and enhances the ability to resist deformation.

[0070] Further, as shown in Figure 5 and Figure 8 , the friction functional layer 02 is internally provided with an air-cooled cavity 021, and further comprises a plurality of groups of heat dissipation holes 022 penetratingly arranged on the friction functional layer 02 along the circumferential direction and each arranged in double rows along the radial direction, a plurality of groups of ventilation holes 023 penetratingly arranged on the outer wall of the friction functional layer 02 along the circumferential direction, and a plurality of groups of second mounting holes 024 penetratingly arranged on the friction functional layer 02 along the circumferential direction.

[0071] It is worth mentioning that the heat dissipation holes 022 and the compensation holes 012 on the structural functional layer 01 are sequentially connected.

[0072] It is further worth mentioning that the heat dissipation holes 022 can air-cool and cool the friction functional layer 02, that is, the heat of the friction functional layer 02 itself can flow out from the heat dissipation holes 022, the air-cooled cavity 021 and the ventilation holes 023.

[0073] Further, as shown in Figure 6 and Figure 10 , the assembly disc 03 comprises a flange plate 031, an inner ring 032 arranged on the flange plate 031 and matched with the inner wall of the structural functional layer 01, a cavity b 033 opened inside the flange plate 031 and extending to the inside of the inner ring 032, a plurality of groups of second heat-conducting holes 034 arranged through the outer wall of the inner ring 032 in the circumferential direction, a second liquid injection hole 035 opened on the outer wall of the flange plate 031, and a plurality of groups of third mounting holes 036 arranged through the flange plate 031 in the circumferential direction, the heat-conducting unit 05 passing through the third mounting hole 036, the second mounting hole 024 and the first mounting hole 013 fastens the structural functional layer 01, the friction functional layer 02 and the assembly disc 03, and guides the heat exchange between the cooling liquid in the cavity a 011 and the cooling liquid in the cavity b 033 in a high-temperature environment.

[0074] It should be noted that the second liquid injection hole 035 is also provided with a sealing plug.

[0075] It should be noted that the assembly disc 03 is made of a material with good heat-conducting performance, which ensures that the cooling liquid in the cavity b 033 can transfer heat from the outside.

[0076] Further, as shown in Figures 7-8 , the friction compensation unit 04 comprises two groups of hollow plug columns 041 fixed to each other by connecting rods and matched with the compensation holes 012, piston columns 042 slidingly arranged inside the hollow plug columns 041 and matched with the heat dissipation holes 022, and first elastic members 043 arranged between the two piston columns 042.

[0077] It should be noted that the hollow plug column 041 is bonded in the compensation hole 012 of the structural functional layer 01 by glue.

[0078] It is worth mentioning that in a high-temperature state, the cooling liquid in the cavity a 011 expands due to thermal expansion and contraction and pushes the two piston columns 042 in the hollow plug column 041 to slide to both sides until the piston column 042 passes through the heat dissipation hole 022 of the friction functional layer 02, so that the end of the piston column 042 is exposed outside the friction functional layer 02, to increase the roughness of the surface of the friction functional layer 02, compensate for the friction performance of the brake disc, and ensure the braking effect.

[0079] Further, as shown in Figures 9-10As shown, the heat conduction unit 05 includes a hollow bolt 051, and a plurality of groups of first overflow holes 052 formed on the hollow bolt 051 and located inside the chamber a 011, a plurality of groups of second overflow holes 053 formed on the hollow bolt 051 and located inside the chamber b 033, a plug 054 threadedly arranged at the port of the hollow bolt 051, a second elastic member 055 arranged on the plug 054, and a piston sheet 056 arranged at one end of the second elastic member 055 and located between the positions of the first overflow holes 052 and the second overflow holes 053.

[0080] It should be noted that, by filling the chamber a 011 with the cooling liquid through the first liquid injection hole 016, it is ensured that, in the high-temperature state of the brake disc, the cooling liquid in the chamber a 011 can press the piston sheet 056 to slide inside the hollow bolt 051 due to thermal expansion and contraction, so that the piston sheet 056 slides to the other side of the second overflow hole 053, and the chamber a 011 is sequentially connected in communication with the chamber b 033 of the assembly disc 03 through the first overflow hole 052 and the second overflow hole 053.

[0081] It should also be noted that, by injecting 75% of the volume of the cooling liquid into the chamber b 033 through the second liquid injection hole 035, i.e., not filling the chamber b 033 with the cooling liquid, it is ensured that, in the process of sliding the piston sheet 056 to the other side of the second overflow hole 053, the cooling liquid inside the hollow bolt 051 can flow to the inside of the chamber b 033 of the assembly disc 03 through the second overflow hole 053, i.e., it is ensured that the piston sheet 056 can smoothly slide inside the hollow bolt 051.

[0082] It is worth mentioning that, in the high-temperature state of the brake disc, the cooling liquid in the chamber a 011 can press the piston sheet 056 to slide inside the hollow bolt 051 due to thermal expansion and contraction, so that the piston sheet 056 slides to the other side of the second overflow hole 053, and the cooling liquid in the chamber a 011 flows to the chamber b 033 of the assembly disc 03 through the first overflow hole 052 and the second overflow hole 053, so that the cooling liquid in the chamber a 011 can directly exchange heat with the cooling liquid in the chamber b 033, which can quickly reduce the temperature of the structural functional layer 01 and ensure the performance of the brake disc.

[0083] In this embodiment, in order to solve the problem of high temperature affecting the performance of the brake disc, on the one hand, from the direction of rapid heat dissipation, the heat dissipation mode combining air cooling and water cooling enables the brake disc to autonomously cool down, slow down the temperature rising rate of the brake disc, quickly reduce the temperature of the brake disc, and greatly improve the heat dissipation effect of the brake disc; on the other hand, from the direction of friction performance, the friction performance of the brake disc in the high-temperature state can be automatically compensated, i.e., the roughness of the surface of the brake disc is increased in the high-temperature state, the friction performance of the brake disc is improved, the braking effect is ensured, and the safety is high.

[0084] Embodiment Two

[0085] As Figures 11-15 shown, the embodiment provides a kind of multilayer carbon ceramic brake disc production equipment, for producing the multilayer carbon ceramic brake disc described in embodiment one, the production equipment includes rotating grabbing mechanism 1, and along the circumferential direction of the rotating grabbing mechanism 1 It is placed and is placed processing mechanism 3, composite mechanism 4, assembly mechanism 5 of material placing mechanism 2;

[0086] The rotating grabbing mechanism 1 includes rotary table 12 arranged on rack 11, several groups of mechanical arms 13 arranged at the output end of the rotary table 12 and jaw assembly 14 arranged on the mechanical arm 13 and used to position and grab structure functional layer 01 for transfer;

[0087] It should be noted that the rotary motor is arranged inside the rotary table 12, and several groups of mechanical arms 13 are arranged on the output end of the rotary motor;

[0088] The jaw assembly 14 includes lifting platform 141 arranged at the end of the mechanical arm 13, first hydraulic component 142 arranged on the mechanical arm 13 and used to drive lifting platform 141 to lift, first limit rod 143 symmetrically arranged on the bottom of lifting platform 141 and used to insert first mounting hole 013 to position structure functional layer 01, L-shaped hanging rod 144 slidingly arranged on the bottom of lifting platform 141 and used to lift structure functional layer 01, first bidirectional screw rod arranged on the bottom of lifting platform 141 and used to drive two groups of L-shaped hanging rod 144 to move synchronously, and first motor arranged on the lifting platform 141 and used to drive the first bidirectional screw rod;

[0089] The material placing mechanism 2 includes workbench one 21, and first bearing assembly 22 arranged on the workbench one 21 and used to carry structure functional layer 01 to move horizontally, and positioning assembly 23 arranged on the workbench one 21 and used to position structure functional layer 01 placed on the first bearing assembly 22;

[0090] The first bearing assembly 22 includes load plate 221 slidingly arranged on the workbench one 21 through guide rod, first threaded rod 222 arranged on the workbench one 21 and used to drive load plate 221 to move horizontally, second motor 223 arranged on the workbench one 21 and used to drive the first threaded rod 222, and round hole opened in the middle position of the load plate 221 and used to keep the first mounting hole 013 of structure functional layer 01 unobstructed;

[0091] It should be noted that the structures of the second bearing assembly 32, the third bearing assembly 42 and the fourth bearing assembly 52 are the same as that of the first bearing assembly 22, and will not be described again;

[0092] The positioning assembly 23 comprises a second hydraulic component 231 arranged inside the workbench 21 and two sets of second limiting rods 232 arranged at the output end of the second hydraulic component 231 and used for positioning the structure and function layer 01 inserted into the first mounting hole 013.

[0093] It should be noted that the positioning assembly 23 positions the structure and function layer 01 placed on the carrier disc 221, facilitates the positioning and grabbing of the structure and function layer 01 by the clamping jaw assembly 14, and facilitates the positioning work of the subsequent processing mechanism 3, the composite mechanism 4 and the assembly mechanism 5.

[0094] It is worth mentioning that the second hydraulic component 231 of the positioning assembly 23 drives the second limiting rod 232 to rise to a specified position, the structure and function layer 01 is manually placed on the carrier disc 221 of the first carrier assembly 22, the second limiting rod 232 positions the structure and function layer 01 through the first mounting hole 013, the second hydraulic component 231 drives the second limiting rod 232 to descend and reset, the second motor 223 drives the carrier disc 221 with the structure and function layer 01 to move horizontally to the position directly below the clamping jaw assembly 14 through the first threaded rod 222, then the first hydraulic component 142 drives the lifting platform 141 to descend to a specified position, so that the first limiting rod 143 descends and inserts into the first mounting hole 013 to position the structure and function layer 01, the first motor drives the two L-shaped hanging rods 144 to move to the inner circular wall of the structure and function layer 01 through the first bidirectional screw rod, the lifting platform 141 rises, so that the L-shaped hanging rod 144 lifts the structure and function layer 01, and the turntable 12 drives the lifting platform with the structure and function layer 01 to shift to the work station of the processing mechanism 3 through the mechanical arm 13.

[0095] In this embodiment, the device can quickly assemble the brake disc, the structure and function layer 01 is accurately positioned during the shifting process, each part can be accurately installed to a specified position, the structure of the brake disc is stable to realize the corresponding function, the degree of automation is high, continuous production and processing can be realized, and the economic benefits of enterprises are improved.

[0096] Further, as shown in Figures 16-17 The processing mechanism 3 comprises a workbench 2 31, a second carrier assembly 32 arranged on the workbench 2 31 and used for horizontally moving the structure and function layer 01, a plug-in assembly 33 arranged on the workbench 2 31 and used for sequentially bonding and fixing the friction compensation unit 04 in the compensation hole 012, a penetrating assembly 34 arranged on the workbench 2 31 and used for sequentially penetrating the heat conduction rod 015 into the cavity a 011 of the structure and function layer 01 from the first heat conduction hole 014, and an adjusting assembly 35 arranged on the penetrating assembly 34 and used for driving the structure and function layer 01 to sequentially rotate a specified angle.

[0097] It should be noted that the second bearing assembly 32 moves the structural functional layer 01 horizontally to the position above the penetrating assembly 34, the adjusting assembly 35 drives the structural functional layer 01 to rotate by a specified angle in sequence, the penetrating assembly 34 penetrates the heat conduction rod 015 from the first heat conduction hole 014 into the cavity a011 of the structural functional layer 01 in sequence, and meanwhile, the plugging assembly 33 bonds and fixes the friction compensation unit 04 in the compensation hole 012 in sequence, and the friction compensation unit 04 clamps and limits the heat conduction rod 015 in the cavity a011;

[0098] The plugging assembly 33 comprises a first lifting unit 331 arranged on the workbench two 31 and a blanking unit 332 arranged on the first lifting unit 331 and containing the friction compensation unit 04;

[0099] The first lifting unit 331 comprises a second threaded rod 3311 arranged vertically on the workbench two 31, a lifting rod 3312 arranged in screw on the second threaded rod 3311, and a third motor 3313 arranged on the workbench two 31 and used for driving the second threaded rod 3311;

[0100] The blanking unit 332 comprises an extension plate 3321 arranged on the lifting rod 3312, a first material box 3322 arranged on the extension plate 3321, a plurality of groups of first automatic blanking cylinders 3323 arranged at the bottom of the first material box 3322, a plurality of groups of glue spreading cylinders 3324 arranged at the bottom of the extension plate 3321 and opposite to the first automatic blanking cylinders 3323, glue spreading brushes arranged on the inner wall of the glue spreading cylinders 3324 and used for spreading glue on the outer wall of the friction compensation unit 04, and a first glue tank 3325 arranged on the extension plate 3321 and used for supplementing glue in the glue spreading cylinders 3324.

[0101] It should be noted that the first automatic blanking cylinder 3323 adopts an existing automatic blanking unit, and its structure and function are not described again, which can ensure that one friction compensation unit 04 is automatically blanked each time.

[0102] It is worth mentioning that after the second bearing assembly 32 moves the structural functional layer 01 horizontally to the position above the penetrating assembly 34, the adjusting assembly 35 drives the structural functional layer 01 to rotate by a specified angle in sequence, so that the compensation holes 012 of the structural functional layer 01 are located in sequence below the first automatic feeding cylinder 3323, then the third motor 3313 of the first lifting unit 331 drives the feeding unit 332 to drop to the specified position through the lifting rod 3312, so that the lower end of the glue applying cylinder 3324 drops to the compensation hole 012 of the structural functional layer 01, the first automatic feeding cylinder 3323 automatically releases a friction compensation unit 04, which, after being coated with glue inside the glue applying cylinder 3324, drops into the compensation hole 012 and is located on both sides of the heat conduction rod 015 respectively, and the hollow plug column 041 of the friction compensation unit 04 is bonded and fixed in the compensation hole 012, so as to sequentially bond and fix the friction compensation unit 04 in the compensation hole 012 of the structural functional layer 01.

[0103] Further, as shown in Figures 18-19 the penetrating assembly 34 includes a third hydraulic component 341 arranged inside the workbench two 31, a stand 342 arranged at the output end of the third hydraulic component 341, a reel 343 arranged inside the workbench two 31 and wound with the heat conduction rod 015, a straightening wheel 344 arranged on the stand 342 and used for straightening the heat conduction rod 015, a fourth motor arranged on the stand 342 and used for driving the straightening wheel 344, a guide wheel 345 arranged on the stand 342 and used for pulling the heat conduction rod 015 from the reel 343 to the straightening wheel 344, a fourth hydraulic component 346 arranged on the stand 342, and a cutting knife 347 arranged at the output end of the fourth hydraulic component 346 and matched with the inner wall of the structural functional layer 01;

[0104] The adjusting assembly 35 includes a first tooth ring 351 rotatably arranged on the stand 342, two groups of third limit rods 352 symmetrically arranged on the first tooth ring 351 and used for inserting the first mounting hole 013 to position the structural functional layer 01, a fifth motor arranged on the stand 342, and a first gear 353 arranged at the output end of the fifth motor and used for driving the first tooth ring 351.

[0105] It should be noted that the penetrating assembly 34 can sequentially install the heat conduction rod 015 from the first heat conduction hole 014 into the cavity a011 of the structural functional layer 01.

[0106] It is worth mentioning that after the second bearing assembly 32 moves the structural functional layer 01 horizontally to the position above the penetrating assembly 34, the third hydraulic part 341 of the penetrating assembly 34 drives the stand 342 to rise to a specified position, so that the third limiting rod 352 of the adjusting assembly 35 rises and inserts into the first mounting hole 013 of the structural functional layer 01, then the straightening wheel 344 drives one end of the heat conduction rod 015 to penetrate into the cavity a011 of the structural functional layer 01 from the first heat conduction hole 014, then the fourth hydraulic part 346 drives the cutting knife 347 to rise, so that the cutting knife 347 cuts the heat conduction rod 015 along the inner wall of the structural functional layer 01, then the fifth motor drives the first tooth ring 351 to rotate a specified angle through the first gear 353, so that the first tooth ring 351 drives the structural functional layer 01 to rotate a specified angle through the third limiting rod 352, so that the penetrating assembly 34 sequentially penetrates the heat conduction rod 015 into the cavity a011 of the structural functional layer 01 from the first heat conduction hole 014, so that the heat conduction rod 015 is sequentially distributed and mounted in the cavity a011 of the structural functional layer 01 in the circumferential direction.

[0107] Further, as shown in Figures 20-22 the composite mechanism 4 includes a workbench three 41, a third bearing assembly 42 arranged on the workbench three 41 and used for horizontally moving the structural functional layer 01, a gluing assembly 43 arranged on the workbench three 41 and used for gluing the structural functional layer 01 and the friction functional layer 02, and a rotating assembly 44 arranged on the workbench three 41 and used for driving the structural functional layer 01 to rotate, the gluing assembly 43 avoids the compensation hole 012 of the structural functional layer 01 and the heat dissipation hole 022 of the friction functional layer 02;

[0108] The gluing assembly 43 includes a fifth hydraulic part 431 arranged on the workbench three 41, a mounting plate 432 arranged at the output end of the fifth hydraulic part 431, a gluing plate 433 horizontally arranged on the mounting plate 432, a gluing block 434 arranged at the end of the gluing plate 433 and used for gluing the inner wall of the structural functional layer 01, gluing cotton 435 arranged at the bottom of the gluing plate 433, a plurality of groups of avoiding strip grooves arranged on the gluing cotton 435 and used for avoiding the compensation hole 012, and a second glue tank 436 arranged on the gluing plate 433.

[0109] The rotating assembly 44 includes a sixth hydraulic part 441 arranged inside the workbench three 41, a sixth motor arranged at the output end of the sixth hydraulic part 441, and two groups of fourth limiting rods 442 arranged at the output end of the sixth motor and matched with the first mounting hole 013 of the structural functional layer 01.

[0110] It needs to be explained that the sixth hydraulic part 441 of the rotating force assembly 44 drives the fourth limiting rod 442 to rise to a specified height, a manual first friction function layer 02 is placed on the third bearing assembly 42, so that the fourth limiting rod 442 is inserted into the second mounting hole 024 of the friction function layer 02, the friction function layer 02 is positioned, then the fifth hydraulic part 431 of the gluing assembly 43 drives the gluing plate 433 to descend to the surface of the friction function layer 02, the sixth motor of the rotating force assembly 44 drives the fourth limiting rod 442 to slowly rotate with the friction function layer 02, so that the gluing plate 433 coats glue on the surface of the friction function layer 02, and the gluing block 434 coats glue on the inner wall of the friction function layer 02, then the third bearing assembly 42 horizontally moves the friction function layer 02 to a position below the clamping jaw assembly 14, the clamping jaw assembly 14 places the structural function layer 01 provided with the friction compensation unit 04 on the friction function layer 02, then the third bearing assembly 42 horizontally moves the friction function layer 02 and the structural function layer 01 to a position above the rotating force assembly 44, the rotating force assembly 44 drives the fourth limiting rod 442 to rise and insert into the first mounting hole 013, so as to position the friction function layer 02 and the structural function layer 01, then the fifth hydraulic part 431 of the gluing assembly 43 drives the gluing plate 433 to descend to the surface of the structural function layer 01, the rotating force assembly 44 slowly and synchronously rotates with the friction function layer 02 and the structural function layer 01 through the fourth limiting rod 442, the gluing plate 433 coats glue on the surface of the structural function layer 01, and the gluing block 434 coats glue on the inner wall of the structural function layer 01, then another friction function layer 02 is manually placed on the structural function layer 01 and positioned by the rotating force assembly 44, and then pressed to be compounded and formed.

[0111] Further, as shown in Figures 23-25 the assembly mechanism 5 comprises a workbench four 51, a fourth bearing assembly 52 arranged on the workbench four 51 and used for horizontally moving the structural function layer 01, a tightening assembly 53 arranged on the workbench four 51 and used for fastening the structural function layer 01 and the assembly disc 03 through the heat conduction unit 05, and an adjusting assembly 54 arranged on the tightening assembly 53 and used for driving the structural function layer 01 to rotate by a specified angle in sequence;

[0112] the tightening assembly 53 comprises a second lifting unit 531 arranged on the workbench four 51, a first mounting unit 532 arranged on the second lifting unit 531 and used for mounting the hollow bolt 051, and a second mounting unit 533 arranged on the workbench four 51 and used for mounting the nut;

[0113] the structure of the second lifting unit 531 is the same as that of the first lifting unit 331, which will not be described herein again;

[0114] The first mounting unit 532 comprises a side plate 5321 arranged on the second lifting unit 531, a sliding plate 5322 arranged on the side plate 5321, two groups of second material boxes 5323 arranged on the sliding plate 5322 and internally provided with hollow bolts 051, a second automatic feeding cylinder arranged at the bottom of the second material box 5323, two groups of seventh motors 5324 arranged on the sliding plate 5322, a screw head 5325 arranged at the output end of the seventh motor 5324 and used for tightening the hollow bolt 051, and a seventh hydraulic component 5326 arranged on the side plate 5321 and used for driving the horizontal movement of the sliding plate 5322.

[0115] The second mounting unit 533 comprises an eighth hydraulic component 5331 arranged in the workbench 451, a support 5332 arranged at the output end of the eighth hydraulic component 5331, a second bidirectional screw rod rotatably arranged on the support 5332, two groups of moving blocks threadedly arranged on the second bidirectional screw rod, a ninth hydraulic component 5333 arranged on the moving block, a supporting block 5334 arranged at the output end of the ninth hydraulic component 5333 and matched with a nut, an eighth motor arranged on the support 5332 and used for driving the second bidirectional screw rod, a third material box 5335 arranged on the support 5332 and internally provided with the nut, and a third automatic feeding cylinder arranged at the bottom of the third material box 5335.

[0116] The adjusting assembly 54 comprises a second gear ring 541 rotatably arranged on the support 5332, two groups of L-shaped frames 542 symmetrically arranged on the second gear ring 541, a fifth limiting rod 543 arranged on the L-shaped frame 542 and used for inserting the first mounting hole 013, a ninth motor arranged on the support 5332, and a second gear 544 arranged at the output end of the ninth motor and used for driving the second gear ring 541.

[0117] It should be noted that in the process of rotating the second gear ring 541 with the fifth limiting rod 543, the L-shaped frame 542 avoids the supporting block 5334, so that the second gear ring 541 can rotate one circle with the fifth limiting rod 543.

[0118] It should be noted that the second automatic feeding cylinder and the third automatic feeding cylinder both adopt the existing automatic feeding unit, and the structure and function thereof will not be described herein again, which can ensure that one hollow bolt 051 and one nut are automatically fed each time.

[0119] It should be noted that the fourth bearing assembly 52 moves the composite structure and function layer 01 horizontally to the upper position of the adjusting assembly 54, the eighth hydraulic part 5331 of the second mounting unit 533 drives the support 5332 to rise to the specified position, so that the fifth limiting rod 543 of the adjusting assembly 54 rises and inserts into the first mounting hole 013 of the structure and function layer 01, the ninth motor drives the second gear 544 to rotate with the second gear ring 541, so that the second gear ring 541 drives the structure and function layer 01 and the friction function layer 02 to rotate synchronously through the fifth limiting rod 543, so that one of the fifth limiting rods 543 moves to the position directly below the second automatic feeding cylinder, at this time, the fifth limiting rod 543 is located directly above the supporting block 5334, then the assembly disc 03 is manually placed on the structure and function layer 01 and positioned through the fifth limiting rod 543, so that the third mounting hole 036 of the assembly disc 03 is butt jointed with the first mounting hole 013 of the structure and function layer 01, then the fifth limiting rod 543 descends to disengage from the first mounting hole 013 and rotates to one side position above the supporting block 5334, then the second lifting unit 531 drives the first mounting unit 532 to descend, so that the second automatic feeding cylinder descends to the position above the third mounting hole 036 of the assembly disc 03, the second automatic feeding cylinder releases a hollow bolt 051 which descends through the third mounting hole 036 of the assembly disc 03, the first mounting hole 013 of the structure and function layer 01 and the second mounting hole 024 of the friction function layer 02, at the same time, the eighth motor drives the two supporting blocks 5334 to move to the positions directly below the third automatic feeding cylinder through the second double lead screw, the third automatic feeding cylinder releases a nut to the supporting block 5334 of the second mounting unit 533, the eighth motor drives the two supporting blocks 5334 to move to the positions directly below the first mounting hole 013 through the second double lead screw, the ninth hydraulic part 5333 drives the supporting block 5334 to rise with the nut and be sleeved on the end of the hollow bolt 051, then the seventh hydraulic part 5326 of the first mounting unit 532 drives the sliding plate 5322 to horizontally move with the second automatic feeding cylinder and the screw head 5325 to the specified distance synchronously, so that the screw head 5325 is located directly above the hollow bolt 051, then the seventh motor 5324 drives the screw head 5325 to rotate with the hollow bolt 051, the supporting block 5334 rises with the nut, so as to tighten the nut to the hollow bolt 051, then the fifth limiting rod 543 of the adjusting assembly 54 sequentially moves the third mounting hole 036 of the assembly disc 03, the first mounting hole 013 of the structure and function layer 01 and the second mounting hole 024 of the friction function layer 02 to the positions directly below the second automatic feeding cylinder, so as to sequentially tighten the hollow bolt 051, and complete the assembly work of the assembly disc 03, the structure and function layer 01 and the friction function layer 02.

[0120] It is worth mentioning that the glue used in this embodiment is a good heat-conducting glue, such as heat-conducting silica gel, which ensures that heat can be transferred between the structure and function layer 01 and the friction function layer 02.

[0121] Embodiment three

[0122] As Figure 26 shown, the embodiment provides a production method of a multi-layer carbon ceramic brake disc, which is realized by using a production equipment of a multi-layer carbon ceramic brake disc shown in embodiment two, and includes the following steps:

[0123] Step one, pre-treatment process, carbon fiber filaments are carded into felt, impregnated with resin, hot-pressed and cured to form, and then low-temperature purification-high-temperature purification is performed to output a friction functional layer 02, and a structural functional layer 01 is processed and formed by casting and drilling processes;

[0124] Step two, feeding process, manually place the structural functional layer 01 on the first bearing assembly 22, position the structural functional layer 01 through the first mounting hole 013 by the positioning assembly 23, and then move the structural functional layer 01 horizontally to the position below the jaw assembly 14 by the first bearing assembly 22, and then position and grab the structural functional layer 01 by the rotating grabbing mechanism 1 through the jaw assembly 14 to sequentially transfer to the processing mechanism 3 station, the composite mechanism 4 station, and the assembly mechanism 5 station;

[0125] Step three, structural functional layer processing process, the second bearing assembly 32 moves the structural functional layer 01 horizontally to the position above the penetrating assembly 34, the adjusting assembly 35 drives the structural functional layer 01 to rotate by a specified angle, the heat-conducting rod 015 is sequentially penetrated into the cavity a011 of the structural functional layer 01 from the first heat-conducting hole 014 by the penetrating assembly 34, and at the same time, the friction compensation unit 04 is sequentially bonded and fixed in the compensation hole 012 by the plugging assembly 33, and the friction compensation unit 04 clamps and limits the heat-conducting rod 015 in the cavity a011;

[0126] Step four, composite process, manually place one friction functional layer 02 on the third bearing assembly 42 first, position the friction functional layer 02 through the second mounting hole 024 by the rotating force assembly 44, and then drive the friction functional layer 02 to slowly rotate through the second mounting hole 024, and then coat glue on the surface of the friction functional layer 02 by the glue coating assembly 43, and avoid the heat dissipation hole 022, and then move the friction functional layer 02 horizontally to the position below the jaw assembly 14 by the third bearing assembly 42, place the structural functional layer 01 on the friction functional layer 02 by the jaw assembly 14, and position it by the rotating force assembly 44, so that the first mounting hole 013 of the structural functional layer 01 and the second mounting hole 024 of the friction functional layer 02 are connected, and then move the structural functional layer 01 horizontally to the position above the rotating force assembly 44 by the third bearing assembly 42, coat glue on the surface of the structural functional layer 01 by the glue coating assembly 43, and avoid the compensation hole 012, and then manually place another friction functional layer 02 on the structural functional layer 01, position it by the rotating force assembly 44, and then press and composite;

[0127] Step five, assembly process, the fourth bearing assembly 52 moves the composite structure and function layer 01 horizontally to the position above the adjusting assembly 54, then manually places the assembly disc 03 on the structure and function layer 01, and positions it through the adjusting assembly 54, so that the third mounting hole 036 of the assembly disc 03 and the first mounting hole 013 of the structure and function layer 01 are docked, the adjusting assembly 54 drives the structure and function layer 01, the friction function layer 02 and the assembly disc 03 to rotate by a specified angle synchronously, and the tightening assembly 53 fastens the heat conduction unit 05 in the third mounting hole 036 of the assembly disc 03 in sequence;

[0128] Step six, liquid injection process, after the assembly is completed, the brake disc is manually taken out, and the first liquid injection hole 016 on the outer circular wall of the structure and function layer 01 and the second liquid injection hole 035 on the outer circular wall of the flange plate 031 are opened in sequence, the cavity a011 is filled with cooling liquid, and the cavity b033 is injected with 75% of the volume of cooling liquid.

[0129] The above only describes the preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A multi-layer carbon ceramic brake disc comprising a structural functional layer and friction functional layers compounded on both sides thereof, characterized in that, The assembly disc is used for mounting the connecting structure functional layer and the friction functional layer, the friction compensation unit is arranged inside the structure functional layer and is used for compensating the performance of the friction functional layer under high temperature, and the heat conduction unit is arranged on the assembly disc and is used for dissipating heat of the structure functional layer; The structure functional layer is internally provided with a cavity a for filling cooling liquid, and further comprises a plurality of groups of compensation holes arranged through the structure functional layer in the circumferential direction and arranged in double rows along the radial direction, a plurality of groups of first mounting holes arranged through the structure functional layer in the circumferential direction, a plurality of groups of first heat conduction holes arranged through the inner wall of the structure functional layer in the circumferential direction, a heat conduction rod arranged in the first heat conduction hole and extending into the cavity a, a first liquid injection hole arranged on the outer wall of the structure functional layer, and a sealing plug arranged on the first liquid injection hole; the friction compensation unit is fixedly arranged in the compensation hole and limits the heat conduction rod; The friction functional layer is internally provided with an air cooling cavity, and further comprises a plurality of groups of heat dissipation holes arranged through the friction functional layer in the circumferential direction and arranged in double rows along the radial direction, a plurality of groups of ventilation holes arranged through the outer wall of the friction functional layer in the circumferential direction, and a plurality of groups of second mounting holes arranged through the friction functional layer in the circumferential direction; The assembly disc comprises a flange disc, an inner ring arranged on the flange disc and matched with the inner wall of the structure functional layer, a cavity b arranged in the flange disc and extending into the inner ring, a plurality of groups of second heat conduction holes arranged through the outer wall of the inner ring in the circumferential direction, a second liquid injection hole arranged on the outer wall of the flange disc, and a plurality of groups of third mounting holes arranged through the flange disc in the circumferential direction; the heat conduction unit is fastened to the structure functional layer, the friction functional layer and the assembly disc through the third mounting holes, the second mounting holes and the first mounting holes, and guides the cooling liquid in the cavity a and the cooling liquid in the cavity b to exchange heat under high temperature environment.

2. The multi-layer carbon-carbide brake disc of claim 1, wherein, The friction compensation unit comprises two groups of hollow plug columns fixed to each other by a connecting rod and matched with the compensation holes, a piston column slidingly arranged in the hollow plug column and matched with the heat dissipation hole, and a first elastic member arranged between the two piston columns.

3. The multi-layer carbon-carbide brake disc of claim 2, wherein, The heat conduction unit comprises a hollow bolt, a plurality of groups of first overflow holes arranged on the hollow bolt and located in the cavity a, a plurality of groups of second overflow holes arranged on the hollow bolt and located in the cavity b, a plug arranged in the port of the hollow bolt in a threaded manner, a second elastic member arranged on the plug, and a piston sheet arranged at one end of the second elastic member and located between the positions of the first overflow holes and the second overflow holes.

4. A production device for a multi-layer carbon-ceramic brake disc, for producing a multi-layer carbon-ceramic brake disc according to any one of claims 1 to 3, characterized in that The rotating grabbing mechanism comprises a rotating table arranged on a rack, a plurality of groups of mechanical arms arranged at the output end of the rotating table, and a jaw assembly arranged on the mechanical arm and used for positioning and clamping the structure functional layer for transfer. The rotating grabbing mechanism comprises a rotating table arranged on a rack, a plurality of groups of mechanical arms arranged at the output end of the rotating table, and a jaw assembly arranged on the mechanical arm and used for positioning and clamping the structure functional layer for transfer. The feeding mechanism comprises a workbench I, a first carrying assembly arranged on the workbench I and used for horizontally moving the structural functional layer, and a positioning assembly arranged on the workbench I and used for positioning the structural functional layer placed on the first carrying assembly.

5. The apparatus for producing a multi-layer carbon-carbide brake disc according to claim 4, wherein The processing mechanism comprises a workbench II, a second carrying assembly arranged on the workbench II and used for horizontally moving the structural functional layer, a plugging assembly arranged on the workbench II and used for sequentially bonding and fixing the friction compensation units in the compensation holes, a penetrating assembly arranged on the workbench II and used for sequentially penetrating the heat-conducting rods from the first heat-conducting holes into the cavities a of the structural functional layer, and an adjusting assembly arranged on the penetrating assembly and used for driving the structural functional layer to sequentially rotate by a specified angle. The compounding mechanism comprises a workbench III, a third carrying assembly arranged on the workbench III and used for horizontally moving the structural functional layer, a glue applying assembly arranged on the workbench III and used for gluing the structural functional layer and the friction functional layer, and a rotating assembly arranged on the workbench III and used for driving the structural functional layer to rotate, the glue applying assembly avoiding the compensation holes of the structural functional layer and the heat-dissipating holes of the friction functional layer.

6. The apparatus for producing a multi-layer carbon-carbide brake disc according to claim 5, wherein The assembling mechanism comprises a workbench IV, a fourth carrying assembly arranged on the workbench IV and used for horizontally moving the structural functional layer, a tightening assembly arranged on the workbench IV and used for fastening the structural functional layer and the assembling disc through the heat-conducting units, and an adjusting assembly arranged on the tightening assembly and used for driving the structural functional layer to sequentially rotate by a specified angle.

7. A method for producing a multi-layer carbon ceramic brake disc, which is implemented by using the multi-layer carbon ceramic brake disc production apparatus according to claim 6, characterized in that, The method comprises the following steps: Step one, a pretreatment process, carbon fiber filaments are carded into felt, impregnated with resin, hot-pressed and cured, and then subjected to low-temperature purification and high-temperature purification to obtain a friction functional layer, and a structural functional layer is processed and formed through casting and drilling processes; Step two, a feeding process, the structural functional layer is manually placed on the first carrying assembly, the positioning assembly positions the structural functional layer through the first mounting holes, the first carrying assembly horizontally moves the structural functional layer to a position below the jaw assembly, the rotating grabbing mechanism positions and grabs the structural functional layer through the jaw assembly and sequentially transfers the structural functional layer to a processing mechanism station, a compounding mechanism station and an assembling mechanism station; Step three, a structural functional layer processing process, the second carrying assembly horizontally moves the structural functional layer to a position above the penetrating assembly, the adjusting assembly drives the structural functional layer to sequentially rotate by a specified angle, the penetrating assembly penetrates the heat-conducting rods from the first heat-conducting holes into the cavities a of the structural functional layer, and at the same time, the plugging assembly sequentially bonds and fixes the friction compensation units in the compensation holes, the friction compensation units clamp and limit the heat-conducting rods in the cavities a; Step four, composite process, manually first put a friction function layer on the third bearing assembly, the rotating force assembly positions the friction function layer through the second mounting hole, and then drives the friction function layer to rotate slowly through the second mounting hole. The glue applying assembly applies glue to the surface of the friction function layer and avoids the heat dissipation holes. Then, the third bearing assembly moves the friction function layer horizontally to the position below the jaw assembly. The jaw assembly places the structural function layer on the friction function layer and positions it through the rotating force assembly, so that the first mounting hole of the structural function layer and the second mounting hole of the friction function layer are butt jointed. Then, the third bearing assembly moves the structural function layer horizontally to the position above the rotating force assembly. The glue applying assembly applies glue to the surface of the structural function layer and avoids the compensation holes. Then, manually put another friction function layer on the structural function layer and position it through the rotating force assembly, and then press and compound; Step five, assembly process, the fourth bearing assembly moves the compounded structural function layer horizontally to the position above the adjusting assembly. Manually put the assembly disc on the structural function layer and position it through the adjusting assembly, so that the third mounting hole of the assembly disc and the first mounting hole of the structural function layer are butt jointed. The adjusting assembly drives the structural function layer, the friction function layer and the assembly disc to rotate synchronously by specified angle. The tightening assembly tightens the heat conducting units in the third mounting hole of the assembly disc in sequence. Step six, liquid injection process, after assembly, manually take out the brake disc, open the first liquid injection hole on the outer circular wall of the structural function layer and the second liquid injection hole on the outer circular wall of the flange plate in sequence, fill the cooling liquid into the cavity a and inject appropriate amount of cooling liquid into the cavity b.

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