Multilayer carbon ceramic brake disc, production equipment and production method

Abstract

The invention relates to the technical field of brake discs, in particular to a multi-layer carbon-ceramic brake disc, production equipment and a production method.The multi-layer carbon-ceramic brake disc comprises a structural functional layer and friction functional layers compounded on the two side faces of the structural functional layer; the assembly disc is used for installing and connecting the structural functional layer and the friction functional layer; the friction compensation unit is arranged in the structural functional layer and is used for performing performance compensation on the friction functional layer in a high-temperature state; the heat conduction unit is arranged on the assembly disc and is used for performing heat dissipation on the structural functional layer; the heat dissipation mode combining air cooling and water cooling is achieved, the heating rate of the brake disc is reduced, the temperature of the brake disc is rapidly reduced, the friction performance of the brake disc in the high-temperature state can be automatically compensated, the friction performance of the brake disc is improved, the braking effect is guaranteed, safety is high, and the problems that the heat dissipation mode of the brake disc is single, the cooling effect is poor, and the brake disc is damaged are solved. The performance of the brake disc is still affected by high temperature, and the safety is poor.

Description

Technical Field

[0001] The present invention relates to the technical field of brake discs, and particularly relates to a multi-layer carbon-ceramic brake disc, production equipment and a production method. Background Art

[0002] A carbon-ceramic brake disc is a brake disc made of a carbon fiber reinforced silicon carbide matrix composite material. The carbon-ceramic brake disc combines the physical properties of carbon fiber and polycrystalline silicon carbide. The elongation at break of the C / SiC material ranges from 0.1% to 0.3%, which is an extremely high value for ceramic materials. The brake disc is a key component of a motor vehicle braking system. During operation, a large amount of heat and abrasive debris are generated due to friction, causing the temperature of the brake disc itself to soar and the friction coefficient to decrease, and even causing a thermal decay phenomenon, resulting in unstable structure and potential safety hazards.

[0003] Chinese Patent CN201711339467.9 discloses a brake disc preform, a preparation method thereof and a brake disc, which includes a plurality of circular ring-shaped fiber plane unit layers stacked 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 surface channel. The internal through hole penetrates between the surface layers, between the side walls or between the surface layer and the side wall of the brake disc preform through a plurality of the fiber unit layers. The surface channel is opened towards the inside of the brake disc preform, and both 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-sectional plane and an intersection line with the fiber plane unit layer.

[0004] However, in this technical solution, the heat dissipation method of the brake disc is single, the temperature reduction effect is not good, high temperature still affects the performance of the brake disc, and the safety is poor. At the same time, the existing assembled brake disc cannot achieve automatic production, and the accuracy is poor and the production efficiency is low through manual assembly. Summary of the Invention

[0005] The purpose of the present invention is to address the deficiencies of the prior art and provide a multi-layer carbon-ceramic brake disc. Through the cooperation of a friction compensation unit and a heat conduction unit, a heat dissipation method combining air cooling and water cooling is realized, the heating rate of the brake disc is slowed down, the temperature of the brake disc is rapidly reduced, the friction performance of the brake disc in a high-temperature state can be automatically compensated, the friction performance of the brake disc is improved, the braking effect is ensured, and the safety is relatively high. It solves the problems of single heat dissipation method of the brake disc, poor temperature reduction effect, high temperature still affecting the performance of the brake disc, and poor safety.

[0006] To achieve the above object, the present invention provides the following technical solutions: A multi-layer carbon-ceramic brake disc includes a structural function layer and friction function layers compounded on both of its side surfaces, and further includes an assembly disc for installing and connecting the structural function layer and the friction function layers, a friction compensation unit disposed inside the structural function layer and used for compensating the performance of the friction function layer in a high-temperature state, and a heat conduction unit disposed on the assembly disc and used for dissipating heat from the structural function layer.

[0007] Preferably, a chamber a for filling coolant is formed inside the structural function layer. The structural function layer further includes several groups of compensation holes penetrating through the structural function layer along the circumferential direction and distributed in a double row along the radial direction in each group, several groups of first mounting holes penetrating through the structural function layer along the circumferential direction, several groups of first heat conduction holes penetrating through the inner circumferential wall of the structural function layer along the circumferential direction, heat conduction rods disposed on the inner walls of the first heat conduction holes and with one end extending into the chamber a, a first liquid injection hole formed on the outer circumferential wall of the structural function layer, and a sealing plug disposed on the first liquid injection hole. The friction compensation unit is adhesively fixed inside the compensation holes and limits the heat conduction rods.

[0008] Preferably, an air-cooling chamber is formed inside the friction function layer. The friction function layer further includes several groups of heat dissipation holes penetrating through the friction function layer along the circumferential direction and distributed in a double row along the radial direction in each group, several groups of ventilation holes penetrating through the outer circumferential wall of the friction function layer along the circumferential direction, and several groups of second mounting holes penetrating through the friction function layer along the circumferential direction.

[0009] Preferably, the assembly disc includes a flange disc, an inner ring disposed on the flange disc and matched with the inner circumferential wall of the structural function layer, a chamber b formed inside the flange disc and extending into the inner ring, several groups of second heat conduction holes penetrating through the outer circumferential wall of the inner ring along the circumferential direction, a second liquid injection hole formed on the outer circumferential wall of the flange disc, and several groups of third mounting holes penetrating through the flange disc along the circumferential direction. The heat conduction unit passes through the third mounting holes, the second mounting holes, and the first mounting holes to fasten the structural function layer, the friction function layer, and the assembly disc, and guides the coolant in the chamber a and the coolant in the chamber b to exchange heat in a high-temperature environment.

[0010] Preferably, the friction compensation unit includes two hollow plug columns fixed to each other by a connecting rod and matched with the compensation holes, piston columns slidably disposed inside the hollow plug columns and matched with the heat dissipation holes, and a first elastic member disposed between the two piston columns.

[0011] Preferably, the heat conduction unit includes a hollow bolt, several groups of first overflow holes opened on the hollow bolt and located inside chamber a, several groups of second overflow holes opened on the hollow bolt and located inside chamber b, a plug threadedly arranged at the port of the hollow bolt, a second elastic member arranged on the plug, and a piston piece arranged at one end of the second elastic member and located between the positions of the first overflow holes and the second overflow holes.

[0012] Another object of the present invention is to provide a multi-layer carbon-ceramic brake disc production device in view of the deficiencies of the prior art. By the cooperation of the set rotary grasping mechanism and processing mechanism, the brake disc can be quickly assembled. The structural functional layer is accurately positioned during the transfer process, and each component can be precisely installed at the designated position, ensuring the structural stability of the brake disc to achieve the corresponding functions and realizing the automatic assembly of the brake disc.

[0013] To achieve the above object, the present invention provides the following technical solutions: A multi-layer carbon-ceramic brake disc production device includes a rotary grasping mechanism, and a feeding mechanism, a processing mechanism, a composite mechanism, and an assembly mechanism arranged along the circumferential direction of the rotary grasping mechanism; The rotary grasping mechanism includes a turntable arranged on a frame, several groups of robotic arms arranged at the output end of the turntable, and a jaw assembly arranged on the robotic arms and used for positioning and clamping the structural functional layer for transfer; The feeding mechanism includes a workbench 1, a first carrying component arranged on the workbench 1 and used for horizontally moving the structural functional layer, and a positioning component arranged on the workbench 1 and used for positioning the structural functional layer placed on the first carrying component.

[0014] Preferably, the processing mechanism includes a workbench 2, a second carrying component arranged on the workbench 2 and used for horizontally moving the structural functional layer, a stuffing component arranged on the workbench 2 and used for sequentially bonding and fixing the friction compensation units in the compensation holes, a penetrating component arranged on the workbench 2 and used for sequentially penetrating the heat conduction rods from the first heat conduction holes into chamber a of the structural functional layer, and an adjusting component arranged on the penetrating component and used for driving the structural functional layer to rotate a specified angle in sequence; The composite mechanism includes a workbench 3, a third carrying component arranged on the workbench 3 and used for horizontally moving the structural functional layer, a gluing component arranged on the workbench 3 and used for gluing the structural functional layer and the friction functional layer, and a rotating force component arranged on the workbench 3 and used for driving the structural functional layer to rotate. The gluing component avoids the compensation holes of the structural functional layer and the heat dissipation holes of the friction functional layer.

[0015] Preferably, the assembly mechanism includes a fourth workbench, a fourth bearing component disposed on the fourth workbench and used for horizontally moving the structural functional layer, a tightening component disposed on the fourth workbench and used for fastening the structural functional layer, the assembly plate and a heat conduction unit together, and an adjusting component disposed on the tightening component and used for driving the structural functional layer to rotate by a specified angle in sequence.

[0016] Another object of the present invention is to provide a production method of a multi-layer carbon-ceramic brake disc for deficiencies of the prior art. Through the cooperation of a pretreatment process, a feeding process, a structural functional layer processing process, a composite process, an assembly process, and a liquid injection process, the automated production of the multi-layer carbon-ceramic brake disc is realized.

[0017] To achieve the above object, the present invention provides the following technical solutions: A production method of a multi-layer carbon-ceramic brake disc includes the following steps: Step 1, the pretreatment process: comb the carbon fiber filaments into a felt, impregnate with resin and hot-press and cure into a shape, and then produce a friction functional layer through low-temperature purification - high-temperature purification. The structural functional layer is processed into a shape through casting and drilling processes; Step 2, the feeding process: manually place the structural functional layer on the first bearing component, the positioning component positions the structural functional layer through the first mounting hole, and then the first bearing component horizontally moves the structural functional layer to a position below the clamping jaw component. The rotary grasping mechanism positions and grasps the structural functional layer through the clamping jaw component and transfers it to the processing mechanism station, the composite mechanism station, and the assembly mechanism station in sequence; Step 3, the structural functional layer processing process: the second bearing component horizontally moves the structural functional layer to a position above the penetrating component, the adjusting component drives the structural functional layer to rotate by a specified angle in sequence, and the penetrating component penetrates the heat conduction rods into the chamber a of the structural functional layer through the first heat conduction holes in sequence. At the same time, the stuffing component adhesively 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 chamber a; Step 4, the composite process: manually place a friction functional layer on the third bearing component first, the rotary force component positions the friction functional layer through the second mounting hole, then drives the friction functional layer to slowly rotate through the second mounting hole, the glue coating component coats glue on the surface of the friction functional layer and avoids the heat dissipation holes. Then, the third bearing component horizontally moves the friction functional layer to a position below the clamping jaw component, the clamping jaw component places the structural functional layer on the friction functional layer and positions it through the rotary force component, so that the first mounting hole of the structural functional layer and the second mounting hole of the friction functional layer are docked. Then, the third bearing component horizontally moves the structural functional layer to a position above the rotary force component again, the glue coating component coats glue on the surface of the structural functional layer and avoids the compensation holes. Then, manually place another friction functional layer on the structural functional layer, position it through the rotary force component, and then press and form by compounding; Step Five, Assembly Process: The fourth load-bearing component horizontally moves the compounded structural and functional layer to a position above the adjustment component. Then, manually place the assembly disk on the structural and functional layer and position it through the adjustment component, so that the third mounting hole of the assembly disk is docked with the first mounting hole of the structural and functional layer. The adjustment component drives the structural and functional layer, the friction functional layer, and the assembly disk to rotate synchronously by a specified angle in sequence, and the tightening component sequentially fastens the heat conduction unit in the third mounting hole of the assembly disk. Step Six, Liquid Injection Process: After assembly, manually remove the brake disc, and sequentially open the first liquid injection hole on the outer circumferential wall of the structural and functional layer and the second liquid injection hole on the outer circumferential wall of the flange. Fill the chamber a with coolant and inject an appropriate amount of coolant into the chamber b.

[0018] The beneficial effects of the present invention are as follows: (1) Through the cooperation of the friction compensation unit and the heat conduction unit provided in the present invention, on the one hand, from the aspect of rapid heat dissipation, the heat dissipation method combining air cooling and water cooling enables the brake disc to cool itself, slows down the heating 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 aspect of friction performance, it can automatically compensate for the friction performance of the brake disc in a high-temperature state, that is, increase the roughness of the brake disc surface at high temperature, improve the friction performance of the brake disc, ensure the braking effect, and have high safety.

[0019] (2) Through the cooperation of the heat conduction rod and the assembly disk provided in the present invention, on the one hand, the coolant inside the chamber b can transfer heat with the coolant inside the chamber a through the heat conduction rod, which can continuously cool the structural and functional layer, facilitate the continuous heat dissipation of the friction functional layer, and reduce the heating rate of the brake disc. On the other hand, the heat conduction rod plays the role of a reinforcing rib inside the chamber a, increases the structural stability of the structural and functional layer, improves the stiffness of the brake disc, and enhances the ability to resist deformation.

[0020] (3) Through the cooperation of the rotary grasping mechanism and the processing mechanism provided in the present invention, the brake disc can be assembled quickly. The structural and functional layer is accurately positioned during the transfer process, and each component can be precisely installed at the specified position, ensuring the structural stability of the brake disc to achieve the corresponding functions. It has a high degree of automation, can be continuously produced and processed, and improves the economic benefits of the enterprise.

[0021] In summary, the brake disc in the present invention has the advantages of self-cooling, good friction performance, and high safety. Description of the Drawings

[0022] Figure 1 It is a structural schematic diagram of a multi-layer carbon-ceramic brake disc.

[0023] Figure 2 It is a structural schematic diagram of the brake disc from another perspective.

[0024] Figure 3 It is a schematic structural diagram of the structural and functional layer.

[0025] Figure 4 It is a schematic structural diagram inside the structural and functional layer.

[0026] Figure 5 It is a schematic structural diagram of the friction functional layer.

[0027] Figure 6 It is a schematic structural diagram of the assembly disk.

[0028] Figure 7 It is a schematic structural diagram of the friction compensation unit.

[0029] Figure 8 It is a schematic transmission diagram of the friction compensation unit during operation.

[0030] Figure 9 It is a schematic structural diagram of the heat conduction unit.

[0031] Figure 10 It is a schematic transmission diagram of the heat conduction unit during operation.

[0032] Figure 11 It is a schematic structural diagram of a multi-layer carbon-ceramic brake disc production device.

[0033] Figure 12 It is a schematic structural diagram of the rotary grasping mechanism.

[0034] Figure 13 It is a schematic structural diagram of the jaw assembly.

[0035] Figure 14 It is a schematic structural diagram of the feeding mechanism.

[0036] Figure 15 It is a schematic structural diagram of the positioning component.

[0037] Figure 16 It is a schematic structural diagram of the processing mechanism.

[0038] Figure 17 It is a schematic structural diagram of the insertion component.

[0039] Figure 18 It is a schematic structural diagram of the adjustment component.

[0040] Figure 19 It is a schematic structural diagram of the penetration component.

[0041] Figure 20 It is a schematic structural diagram of the composite mechanism.

[0042] Figure 21 It is a schematic structural diagram of the rotational force component.

[0043] Figure 22 It is a schematic structural diagram of the glue - applying component.

[0044] Figure 23 It is a schematic structural diagram of the assembly mechanism.

[0045] Figure 24 It is a schematic structural diagram of the first installation unit.

[0046] Figure 25 It is a schematic structural diagram of the second installation unit.

[0047] Figure 26 It is a process flow diagram of a production method for a multi - layer carbon - ceramic brake disc. Detailed implementation manners

[0048] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0049] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation to the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality" means two or more unless otherwise specifically defined.

[0050] Embodiment 1 As Figures 1 - 10As shown, this embodiment provides a multi-layer carbon ceramic brake disc, including a structural functional layer 01 and a friction functional layer 02 composited on both sides thereof, characterized in that it also includes an assembly disc 03 for installing 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 to compensate the performance of the friction functional layer 02 under a high temperature state, and a heat conduction unit 05 arranged on the assembly disc 03 and used to dissipate heat from the structural functional layer 01.

[0051] It should be noted that the structural functional layer 01 is made of a material with good thermal conductivity to ensure that the coolant in the chamber a011 can transfer heat through the structural functional layer 01 and the friction functional layer 02 .

[0052] It should also be noted that the two friction functional layers 02 are fixed to the two side surfaces of the structural functional layer 01 by means of glue having good thermal conductivity, thereby ensuring that heat can be transferred between the friction functional layer 02 and the structural functional layer 01 .

[0053] Further, if Figures 1 - 4 As shown, a chamber a011 for filling coolant is provided inside the structural functional layer 01, and also includes a plurality of groups of compensation holes 012 which are arranged on the structural functional layer 01 along the circumferential direction and each group is distributed in double rows along the radial direction, a plurality of groups of first mounting holes 013 which are arranged on the structural functional layer 01 along the circumferential direction, a plurality of groups of first heat conducting holes 014 which are arranged on the inner circular wall of the structural functional layer 01 along the circumferential direction, a heat conducting rod 015 which is cooperatively arranged on the inner wall of the first heat conducting hole 014 and one end of which extends to the interior of the chamber a011, a first liquid injection hole 016 which is provided on the outer circular wall of the structural functional layer 01, and a sealing plug which is provided on the first liquid injection hole 016, and the friction compensation unit 04 is bonded and fixed inside the compensation hole 012, and limits the heat conducting rod 015.

[0054] It is worth mentioning that the first heat conducting hole 014 on the inner circular wall of the structural functional layer 01 and the second heat conducting hole 034 on the outer circular wall of the inner ring 032 are connected in sequence.

[0055] It should be noted that the heat conduction rods 015 are evenly distributed in the chamber a011 along the circumferential direction, and their ends are located inside the first heat conduction holes 014. On the one hand, the coolant inside the chamber b033 of the inner ring 032 can contact the ends of the heat conduction rods 015 through the second heat conduction holes 034, that is, the coolant inside the chamber b033 can transfer heat to the coolant inside the chamber a011 through the heat conduction rods 015, which can continuously cool the structural functional layer 01, facilitate the continuous heat dissipation of the friction functional layer 02, and reduce the heating rate of the brake disc; on the other hand, the heat conduction rods 015 play the role of reinforcing ribs inside the chamber a011, increasing the structural stability of the structural functional layer 01, improving the stiffness of the brake disc, and enhancing the ability to resist deformation.

[0056] Further, as Figure 5 and Figure 8 shown, an air-cooling chamber 021 is provided inside the friction functional layer 02, and further includes a plurality of groups of heat dissipation holes 022 that are arranged along the circumferential direction and penetrate through the friction functional layer 02 and are distributed in two columns along the radial direction in each group, a plurality of groups of ventilation holes 023 that are arranged along the circumferential direction and penetrate through the outer circumferential wall of the friction functional layer 02, and a plurality of groups of second mounting holes 024 that are arranged along the circumferential direction and penetrate through the friction functional layer 02.

[0057] It should be noted that the heat dissipation holes 022 are sequentially docked with the compensation holes 012 on the structural functional layer 01.

[0058] It should also be noted that the heat dissipation holes 022 can cool the friction functional layer 02 by air cooling, that is, the heat of the friction functional layer 02 itself can flow out from the heat dissipation holes 022 and the air-cooling chamber 021 through the ventilation holes 023.

[0059] Further, as Figure 6 and Figure 10 shown, the assembly disc 03 includes a flange disc 031, an inner ring 032 provided on the flange disc 031 and cooperating with the inner circumferential wall of the structural functional layer 01, a chamber b033 provided inside the flange disc 031 and extending into the inner ring 032, a plurality of groups of second heat conduction holes 034 that are arranged along the circumferential direction and penetrate through the outer circumferential wall of the inner ring 032, a second liquid injection hole 035 provided on the outer circumferential wall of the flange disc 031, and a plurality of groups of third mounting holes 036 that are arranged along the circumferential direction and penetrate through the flange disc 031. The heat conduction unit 05 passes through the third mounting holes 036, the second mounting holes 024, and the first mounting holes 013 to fasten the structural functional layer 01, the friction functional layer 02, and the assembly disc 03, and guides the coolant in the chamber a011 and the coolant in the chamber b033 to exchange heat in a high-temperature environment.

[0060] It should be noted that a sealing plug is also provided on the second liquid injection hole 035.

[0061] It should also be noted that the assembly disk 03 is made of a material with good thermal conductivity to ensure that the coolant in the chamber b033 can transfer heat to the outside.

[0062] Furthermore, as Figures 7 - 8 shown, the friction compensation unit 04 includes two groups of hollow plug columns 041 that are fixed to each other by a connecting rod and match the compensation holes 012, piston columns 042 that are slidably arranged inside the hollow plug columns 041 and match the heat dissipation holes 022, and a first elastic member 043 arranged between the two piston columns 042.

[0063] It should be noted that the hollow plug column 041 is bonded in the compensation hole 012 of the structural and functional layer 01 with glue.

[0064] It is worth mentioning that when the brake disk is in a high-temperature state, the coolant in the chamber a011 presses the two piston columns 042 to slide towards both sides inside the hollow plug column 041 due to thermal expansion and contraction until the piston columns 042 pass through the heat dissipation holes 022 of the friction functional layer 02, so that the ends of the piston columns 042 are exposed on the outer surface of the friction functional layer 02, increasing the roughness of the surface of the friction functional layer 02, compensating for the friction performance of the brake disk, and ensuring the braking effect.

[0065] Furthermore, as Figures 9 - 10 shown, the heat conduction unit 05 includes a hollow bolt 051, several groups of first overflow holes 052 opened on the hollow bolt 051 and located inside the chamber a011, several groups of second overflow holes 053 opened on the hollow bolt 051 and located inside the chamber b033, 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 piece 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.

[0066] It should be noted that the chamber a011 is filled with coolant through the first liquid injection hole 016. When the brake disk is in a high-temperature state, the coolant in the chamber a011 can press the piston piece 056 to slide inside the hollow bolt 051 due to thermal expansion and contraction, so that the piston piece 056 slides to the other side of the second overflow hole 053, and the chamber a011 is connected to the chamber b033 of the assembly disk 03 through the first overflow holes 052 and the second overflow holes 053 in sequence.

[0067] It should also be noted that 75% of the volume of the coolant is injected into the chamber b033 through the second liquid injection hole 035, that is, the chamber b033 is not filled with the coolant. This ensures that during the process of the piston piece 056 sliding to the other side of the second overflow hole 053, the coolant inside the hollow bolt 051 can flow through the second overflow hole 053 into the chamber b033 inside the assembly disk 03, which ensures that the piston piece 056 can slide smoothly inside the hollow bolt 051.

[0068] It is worth mentioning that when the brake disc is in a high-temperature state, the coolant in the chamber a011 slides the piston piece 056 inside the hollow bolt 051 due to thermal expansion and contraction. As a result, the piston piece 056 slides to the other side of the second overflow hole 053, and the coolant in the chamber a011 flows through the first overflow hole 052 and the second overflow hole 053 into the chamber b033 of the assembly disk 03, enabling the coolant in the chamber a011 to directly exchange heat with the coolant in the chamber b033, which can quickly reduce the temperature of the structural functional layer 01 and ensure the performance of the brake disc.

[0069] In this embodiment, to solve the problem that high temperature affects the performance of the brake disc, on the one hand, from the aspect of rapid heat dissipation, the heat dissipation method combining air cooling and water cooling enables the brake disc to cool itself, slows down the heating 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 aspect of friction performance, it can automatically compensate for the friction performance of the brake disc in a high-temperature state, that is, increase the roughness of the brake disc surface at high temperature, improve the friction performance of the brake disc, ensure the braking effect, and have relatively high safety.

[0070] Embodiment Two As Figures 11 - 15 shown, this embodiment provides a multi-layer carbon-ceramic brake disc production device for producing the multi-layer carbon-ceramic brake disc described in Embodiment One. This production device includes a rotary grasping mechanism 1, as well as a feeding mechanism 2, a processing mechanism 3, a composite mechanism 4, and an assembly mechanism 5 arranged along the circumferential direction of the rotary grasping mechanism 1; The rotary grasping mechanism 1 includes a turntable 12 arranged on the frame 11, several groups of robotic arms 13 arranged at the output end of the turntable 12, and a jaw assembly 14 arranged on the robotic arms 13 and used to position and clamp the structural functional layer 01 for transfer; It should be noted that a conventional rotary motor is arranged inside the turntable 12, and several groups of robotic arms 13 are arranged at the output end of the rotary motor; The clamping jaw assembly 14 includes a lifting platform 141 arranged at the end of the robotic arm 13, a first hydraulic component 142 arranged on the robotic arm 13 and used to drive the lifting platform 141 to lift, two groups of first limiting rods 143 symmetrically arranged at the bottom of the lifting platform 141 and used to insert into the first mounting hole 013 to position the structural and functional layer 01, two groups of L-shaped hanging rods 144 slidably arranged at the bottom of the lifting platform 141 and used to lift the structural and functional layer 01, a first bidirectional lead screw arranged at the bottom of the lifting platform 141 and used to drive the two groups of L-shaped hanging rods 144 to move relatively synchronously, and a first motor arranged on the lifting platform 141 and used to drive the first bidirectional lead screw; The feeding mechanism 2 includes a first workbench 21, and a first bearing assembly 22 arranged on the first workbench 21 and used to carry the structural and functional layer 01 to move horizontally, and a positioning assembly 23 arranged on the first workbench 21 and used to position the structural and functional layer 01 placed on the first bearing assembly 22; The first bearing assembly 22 includes a carrier plate 221 slidably arranged on the first workbench 21 through a guide rod, a first threaded rod 222 arranged on the first workbench 21 and used to drive the carrier plate 221 to move horizontally, a second motor 223 arranged on the first workbench 21 and used to drive the first threaded rod 222, and a circular hole opened at the middle position of the carrier plate 221 and used to keep the first mounting hole 013 for the structural and functional layer 01 unobstructed; 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 those of the first bearing assembly 22, and will not be elaborated here; The positioning assembly 23 includes a second hydraulic component 231 arranged inside the first workbench 21 and two groups of second limiting rods 232 arranged at the output end of the second hydraulic component 231 and used to insert into the first mounting hole 013 to position the structural and functional layer 01.

[0071] It should be noted that the positioning assembly 23 positions the structural and functional layer 01 placed on the carrier plate 221, which is convenient for the clamping jaw assembly 14 to position and grab the structural and functional layer 01, and is also convenient for the subsequent processing mechanism 3, the composite mechanism 4, and the assembly mechanism 5 to carry out positioning work.

[0072] It is worth mentioning that the second hydraulic component 231 of the positioning component 23 drives the second limiting rod 232 to rise to a specified position. Manually place the structural and functional layer 01 on the carrier plate 221 of the first bearing component 22. The second limiting rod 232 positions the structural and functional 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 plate 221 through the first threaded rod 222 to horizontally move the structural and functional layer 01 to a position directly below the jaw component 14. Then, the first hydraulic component 142 drives the lifting platform 141 to descend to a specified position, causing the first limiting rod 143 to descend and insert into the first mounting hole 013 to position the structural and functional layer 01. The first motor drives the two L-shaped hanging rods 144 to move to both sides along the first bidirectional lead screw to the inner circular wall of the structural and functional layer 01. The lifting platform 141 rises, causing the L-shaped hanging rods 144 to lift the structural and functional layer 01. The turntable 12 drives the lifting platform with the structural and functional layer 01 to transfer to the working station of the processing mechanism 3 through the robotic arm 13.

[0073] In this embodiment, the device can quickly assemble the brake disc. The structural and functional layer 01 is accurately positioned during the transfer process, and each component can be precisely installed at the specified position, ensuring the structural stability of the brake disc to achieve the corresponding functions. It has a high degree of automation, can be continuously produced and processed, and improves the economic benefits of the enterprise.

[0074] Further, as Figures 16 - 17 shown, the processing mechanism 3 includes a second workbench 31, and a second bearing component 32 provided on the second workbench 31 and used for horizontally moving the structural and functional layer 01, a stuffing component 33 provided on the second workbench 31 and used for sequentially bonding and fixing the friction compensation unit 04 in the compensation holes 012, a penetrating component 34 provided on the second workbench 31 and used for sequentially penetrating the heat conduction rods 015 from the first heat conduction holes 014 into the chamber a011 of the structural and functional layer 01, and an adjustment component 35 provided on the penetrating component 34 and used for driving the structural and functional layer 01 to rotate a specified angle in sequence.

[0075] It should be noted that the second bearing component 32 horizontally moves the structural and functional layer 01 to a position above the penetrating component 34. The adjustment component 35 drives the structural and functional layer 01 to rotate a specified angle in sequence. The penetrating component 34 sequentially penetrates the heat conduction rods 015 from the first heat conduction holes 014 into the chamber a011 of the structural and functional layer 01. At the same time, the stuffing component 33 sequentially bonds and fixes the friction compensation units 04 in the compensation holes 012, and the friction compensation units 04 clamp and limit the heat conduction rods 015 in the chamber a011; The stuffing component 33 includes a first lifting unit 331 provided on the second workbench 31 and a blanking unit 332 provided on the first lifting unit 331 and internally equipped with the friction compensation unit 04; The first lifting unit 331 includes a second threaded rod 3311 vertically arranged on the second workbench 31, a lifting rod 3312 threadedly arranged on the second threaded rod 3311, and a third motor 3313 arranged on the second workbench 31 and used to drive the second threaded rod 3311; The blanking unit 332 includes an extension plate 3321 arranged on the lifting rod 3312, a first material box 3322 arranged on the extension plate 3321, several groups of first automatic blanking barrels 3323 arranged at the bottom of the first material box 3322, several groups of glue cylinders 3324 arranged at the bottom of the extension plate 3321 and connected to the first automatic blanking barrels 3323, a glue brush arranged on the inner wall of the glue cylinder 3324 and used to apply glue to the outer wall of the friction compensation unit 04, and a first glue box 3325 arranged on the extension plate 3321 and used to replenish glue in the glue cylinder 3324.

[0076] It should be noted that the first automatic unloading barrel 3323 adopts the existing automatic unloading unit, and its structure and function are not repeated here, which can ensure that one friction compensation unit 04 is automatically unloaded each time.

[0077] It is worth mentioning that after the second bearing component 32 moves the structural functional layer 01 horizontally to the upper position of the penetration component 34, the adjustment component 35 drives the structural functional layer 01 to rotate the specified angle in sequence, so that the compensation hole 012 of the structural functional layer 01 is located directly below the first automatic unloading barrel 3323 in sequence, and then, the third motor 3313 of the first lifting unit 331 drives the blanking unit 332 to descend to the specified position through the lifting rod 3312, so that the lower port of the glue cylinder 3324 descends to the compensation hole 012 of the structural functional layer 01, and the first automatic unloading barrel 3323 automatically releases a friction compensation unit 04. After the friction compensation unit 04 is coated with glue inside the glue cylinder 3324, it descends into the compensation hole 012 and is respectively located on both sides of the heat-conducting rod 015. The hollow blocking column 041 of the friction compensation unit 04 is bonded and fixed in the compensation hole 012, thereby, the friction compensation unit 04 is bonded and fixed in the compensation hole 012 of the structural functional layer 01 in sequence.

[0078] Further, if Figures 18 - 19As shown, the penetrating component 34 includes a third hydraulic component 341 disposed inside the second workbench 31, a vertical frame 342 disposed at the output end of the third hydraulic component 341, a reel 343 disposed inside the second workbench 31 and wound with a heat-conducting rod 015, a straightening wheel 344 disposed on the vertical frame 342 and used for straightening the heat-conducting rod 015, a fourth motor disposed on the vertical frame 342 and used for driving the straightening wheel 344, a guiding wheel 345 disposed on the vertical frame 342 and used for pulling the heat-conducting rod 015 from the reel 343 to the straightening wheel 344, a fourth hydraulic component 346 disposed on the vertical frame 342, and a cutting knife 347 disposed at the output end of the fourth hydraulic component 346 and matching the inner circular wall of the structural and functional layer 01; The adjusting component 35 includes a first toothed ring 351 rotatably disposed on the vertical frame 342, two groups of symmetrically disposed third limiting rods 352 on the first toothed ring 351 and used for inserting into the first mounting holes 013 to position the structural and functional layer 01, a fifth motor disposed on the vertical frame 342, and a first gear 353 disposed at the output end of the fifth motor and used for driving the first toothed ring 351.

[0079] It should be noted that the penetrating component 34 can sequentially install the heat-conducting rod 015 from the first heat-conducting hole 014 into the chamber a011 of the structural and functional layer 01.

[0080] It is worth mentioning that after the second carrying component 32 horizontally moves the structural and functional layer 01 to the upper position of the penetrating component 34, the third hydraulic component 341 of the penetrating component 34 drives the vertical frame 342 to rise to a specified position, so that the third limiting rod 352 of the adjusting component 35 rises and inserts into the first mounting hole 013 of the structural and functional layer 01. Then, the straightening wheel 344 drives one end of the heat-conducting rod 015 to penetrate into the chamber a011 of the structural and functional layer 01 from the first heat-conducting hole 014. Then, the fourth hydraulic component 346 drives the cutting knife 347 to rise, so that the cutting knife 347 cuts the heat-conducting rod 015 along the inner circular wall of the structural and functional layer 01. Then, the fifth motor drives the first toothed ring 351 to rotate a specified angle in sequence through the first gear 353, so that the first toothed ring 351 drives the structural and functional layer 01 to rotate a specified angle through the third limiting rod 352, so that the penetrating component 34 sequentially installs the heat-conducting rod 015 from the first heat-conducting hole 014 into the chamber a011 of the structural and functional layer 01, and thus, the heat-conducting rod 015 is sequentially installed in the chamber a011 of the structural and functional layer 01 along the circumferential direction.

[0081] Further, as Figures 20 - 22As shown, the composite mechanism 4 includes a third workbench 41, a third bearing assembly 42 disposed on the third workbench 41 and used for horizontally moving the structural functional layer 01, a gluing assembly 43 disposed on the third workbench 41 and used for gluing the structural functional layer 01 and the friction functional layer 02, and a rotational force assembly 44 disposed on the third workbench 41 and used for driving the structural functional layer 01 to rotate. The gluing assembly 43 avoids the compensation holes 012 of the structural functional layer 01 and the heat dissipation holes 022 of the friction functional layer 02. The gluing assembly 43 includes a fifth hydraulic component 431 disposed on the third workbench 41, a mounting plate 432 disposed at the output end of the fifth hydraulic component 431, a gluing plate 433 horizontally disposed on the mounting plate 432, a gluing block 434 disposed at the end of the gluing plate 433 and used for gluing the inner circular wall of the structural functional layer 01, a gluing cotton 435 disposed at the bottom of the gluing plate 433, a plurality of avoidance strip grooves opened on the gluing cotton 435 and used for avoiding the compensation holes 012, and a second glue water tank 436 disposed on the gluing plate 433. The rotational force assembly 44 includes a sixth hydraulic component 441 disposed inside the third workbench 41, a sixth motor disposed at the output end of the sixth hydraulic component 441, and two groups of fourth limiting rods 442 disposed at the output end of the sixth motor and matching with the first mounting holes 013 of the structural functional layer 01.

[0082] It should be noted that the sixth hydraulic component 441 of the rotational force assembly 44 drives the fourth limiting rod 442 to rise to a specified height. Manually place a friction functional layer 02 on the third bearing assembly 42 first, so that the fourth limiting rod 442 is inserted into the second mounting hole 024 of the friction functional layer 02 to position the friction functional layer 02. Then, the fifth hydraulic component 431 of the glue coating assembly 43 drives the glue coating plate 433 to descend to the surface of the friction functional layer 02. The sixth motor of the rotational force assembly 44 drives the fourth limiting rod 442 to slowly rotate with the friction functional layer 02, so that the glue coating plate 433 coats glue on the surface of the friction functional layer 02, and the glue coating block 434 coats glue on the inner circular wall of the friction functional layer 02. Then, the third bearing assembly 42 horizontally moves the friction functional layer 02 to the position below the jaw assembly 14. The jaw assembly 14 places the structural functional layer 01 equipped with the friction compensation unit 04 on the friction functional layer 02. Then, the third bearing assembly 42 horizontally moves the friction functional layer 02 and the structural functional layer 01 to the position above the rotational force assembly 44. The rotational force assembly 44 drives the fourth limiting rod 442 to rise and insert into the first mounting hole 013 to position the friction functional layer 02 and the structural functional layer 01. Then, the fifth hydraulic component 431 of the glue coating assembly 43 drives the glue coating plate 433 to descend to the surface of the structural functional layer 01. The rotational force assembly 44 drives the fourth limiting rod 442 to slowly and synchronously rotate with the friction functional layer 02 and the structural functional layer 01. The glue coating plate 433 coats glue on the surface of the structural functional layer 01, and the glue coating block 434 coats glue on the inner circular wall of the structural functional layer 01. Then, manually place another friction functional layer 02 on the structural functional layer 01, position it through the rotational force assembly 44, and then press for composite molding.

[0083] Furthermore, as Figures 23 - 25 shown, the assembly mechanism 5 includes a fourth workbench 51, and a fourth bearing assembly 52 arranged on the fourth workbench 51 and used for horizontally moving the structural functional layer 01, a tightening assembly 53 arranged on the fourth workbench 51 and used for tightening the structural functional layer 01, the assembly disk 03 and the heat conduction unit 05 together, and an adjusting assembly 54 arranged on the tightening assembly 53 and used for driving the structural functional layer 01 to rotate a specified angle in sequence; The tightening assembly 53 includes a second lifting unit 531 arranged on the fourth workbench 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 fourth workbench 51 and used for mounting nuts; The structure of the second lifting unit 531 is the same as that of the first lifting unit 331, and will not be described in detail; The first installation unit 532 includes a side plate 5321 provided on the second lifting unit 531, a sliding plate 5322 slidably arranged on the side plate 5321, two second bins 5323 provided on the sliding plate 5322 and internally filled with hollow bolts 051, a second automatic blanking cylinder provided at the bottom of the second bin 5323, two seventh motors 5324 provided on the sliding plate 5322, a screwing head 5325 provided at the output end of the seventh motor 5324 and used for screwing the hollow bolt 051, and a seventh hydraulic component 5326 provided on the side plate 5321 and used for driving the sliding plate 5322 to move horizontally; The second installation unit 533 includes an eighth hydraulic component 5331 provided inside the fourth workbench 51, a bracket 5332 provided at the output end of the eighth hydraulic component 5331, a second bidirectional lead screw rotatably arranged on the bracket 5332, two moving blocks threadedly arranged on the second bidirectional lead screw, a ninth hydraulic component 5333 provided on the moving block, a supporting block 5334 provided at the output end of the ninth hydraulic component 5333 and adapted to the nut, an eighth motor provided on the bracket 5332 and used for driving the second bidirectional lead screw, a third bin 5335 provided on the bracket 5332 and internally filled with nuts, and a third automatic blanking cylinder provided at the bottom of the third bin 5335; The adjusting assembly 54 includes a second gear ring 541 rotatably arranged on the bracket 5332, two L-shaped frames 542 symmetrically arranged on the second gear ring 541, a fifth limiting rod 543 provided on the L-shaped frame 542 and used for inserting into the first mounting hole 013, a ninth motor provided on the bracket 5332, and a second gear 544 provided at the output end of the ninth motor and used for driving the second gear ring 541.

[0084] It should be noted that during the rotation of the second gear ring 541 with the fifth limiting rod 543, the L-shaped frame 542 avoids the supporting block 5334 to ensure that the second gear ring 541 can rotate one week with the fifth limiting rod 543.

[0085] It should be noted that both the second automatic blanking cylinder and the third automatic blanking cylinder also adopt the existing automatic blanking unit, and their structures and functions will not be described in detail, which can ensure that one hollow bolt 051 and one nut are automatically blanked each time.

[0086] It should also be noted that the fourth bearing component 52 horizontally moves the composite structural and functional layer 01 to a position above the adjusting component 54. The eighth hydraulic component 5331 of the second mounting unit 533 drives the bracket 5332 to rise to a specified position, so that the fifth limiting rod 543 of the adjusting component 54 rises and inserts into the first mounting hole 013 of the structural and functional layer 01. The ninth motor drives the second gear 544 to rotate the second toothed ring 541, so that the second toothed ring 541 drives the structural and functional layer 01 and the friction functional layer 02 to rotate synchronously through the fifth limiting rod 543, so that one of the fifth limiting rods 543 moves to a position directly below the second automatic blanking cylinder. At this time, the fifth limiting rod 543 is located directly above the supporting block 5334. Then, manually place the assembly disk 03 on the structural and functional layer 01 and position it through the fifth limiting rod 543, so that the third mounting hole 036 of the assembly disk 03 is docked with the first mounting hole 013 of the structural and functional layer 01. Then, the fifth limiting rod 543 descends and disengages from the first mounting hole 013 and rotates to a position on one side above the supporting block 5334. Then, the second lifting unit 531 drives the first mounting unit 532 to descend, so that the second automatic blanking cylinder descends to a position above the third mounting hole 036 of the assembly disk 03. The second automatic blanking cylinder releases a hollow bolt 051 to descend through the third mounting hole 036 of the assembly disk 03, the first mounting hole 013 of the structural and functional layer 01, and the second mounting hole 024 of the friction functional layer 02. At the same time, the eighth motor drives two supporting blocks 5334 to move to a position directly below the third automatic blanking cylinder through the second bidirectional lead screw. The third automatic blanking cylinder releases a nut onto the supporting block 5334 of the second mounting unit 533. The eighth motor drives two supporting blocks 5334 to move to both sides to a position directly below the first mounting hole 013 through the second bidirectional lead screw. The ninth hydraulic component 5333 drives the supporting block 5334 to rise with the nut and sleave it on the end of the hollow bolt 051. Then, the seventh hydraulic component 5326 of the first mounting unit 532 drives the slide plate 5322 to horizontally move the second automatic blanking cylinder and the screwing head 5325 synchronously to a specified distance, so that the screwing head 5325 is located directly above the hollow bolt 051. Then, the seventh motor 5324 drives the screwing head 5325 to rotate the hollow bolt 051 by itself, and the supporting block 5334 rises with the nut, so as to tighten the nut onto the hollow bolt 051. Then, the fifth limiting rod 543 of the adjusting component 54 sequentially moves the third mounting hole 036 of the assembly disk 03, the first mounting hole 013 of the structural and functional layer 01, and the second mounting hole 024 of the friction functional layer 02 to a position directly below the second automatic blanking cylinder, so as to sequentially fasten the hollow bolt 051, and complete the assembly work of the assembly disk 03, the structural and functional layer 01, and the friction functional layer 02.

[0087] It is worth mentioning that the glue used in this embodiment is glue with good thermal conductivity, such as thermal conductive silicone, to ensure heat transfer between the structural and functional layer 01 and the friction functional layer 02.

[0088] Example 3 As Figure 26 shown, this embodiment provides a production method for a multi-layer carbon-ceramic brake disc, which is realized by using a production device for a multi-layer carbon-ceramic brake disc shown in Example 2, and includes the following steps: Step 1, pre-treatment process: comb the carbon fiber filaments into a felt, impregnate with resin and hot press and cure into a shape, and then produce the friction functional layer 02 through low-temperature purification - high-temperature purification. The structural functional layer 01 is processed into a shape through casting and drilling processes; Step 2, feeding process: manually place the structural functional layer 01 on the first carrying component 22, and the positioning component 23 positions the structural functional layer 01 through the first mounting hole 013. The first carrying component 22 then horizontally moves the structural functional layer 01 to a position below the jaw component 14. The rotary grasping mechanism 1 positions and grasps the structural functional layer 01 through the jaw component 14 and sequentially transfers it to the working positions of the processing mechanism 3, the composite mechanism 4, and the assembly mechanism 5; Step 3, structural functional layer processing process: the second carrying component 32 horizontally moves the structural functional layer 01 to a position above the penetrating component 34. The adjustment component 35 drives the structural functional layer 01 to sequentially rotate by a specified angle. The penetrating component 34 sequentially penetrates the heat-conducting rod 015 from the first heat-conducting hole 014 into the chamber a011 of the structural functional layer 01. At the same time, the plugging component 33 sequentially bonds and fixes the friction compensation unit 04 in the compensation hole 012, and the friction compensation unit 04 clamps and limits the heat-conducting rod 015 in the chamber a011; Step 4, composite process: manually place a friction functional layer 02 on the third carrying component 42 first. The rotary force component 44 positions the friction functional layer 02 through the second mounting hole 024, and then drives the friction functional layer 02 to slowly rotate through the second mounting hole 024. The glue coating component 43 coats glue on the surface of the friction functional layer 02 and avoids the heat dissipation holes 022. Then, the third carrying component 42 horizontally moves the friction functional layer 02 to a position below the jaw component 14. The jaw component 14 places the structural functional layer 01 on the friction functional layer 02 and positions it through the rotary force component 44, so that the first mounting hole 013 of the structural functional layer 01 is docked with the second mounting hole 024 of the friction functional layer 02. Then, the third carrying component 42 horizontally moves the structural functional layer 01 to a position above the rotary force component 44. The glue coating component 43 coats glue on the surface of the structural functional layer 01 and avoids the compensation hole 012. Then, manually place another friction functional layer 02 on the structural functional layer 01, position it through the rotary force component 44, and then press for composite molding; Step Five, assembly process. The fourth load-bearing component 52 horizontally moves the composite structural and functional layer 01 to a position above the adjustment component 54. Then, manually place the assembly disk 03 on the structural and functional layer 01 and position it through the adjustment component 54 so that the third mounting hole 036 of the assembly disk 03 is aligned with the first mounting hole 013 of the structural and functional layer 01. The adjustment component 54 drives the structural and functional layer 01, the friction functional layer 02, and the assembly disk 03 to rotate synchronously by a specified angle in sequence. The tightening component 53 tightens the heat conduction unit 05 in the third mounting hole 036 of the assembly disk 03 in sequence; Step Six, liquid injection process. After the assembly is completed, manually remove the brake disc, and successively open the first liquid injection hole 016 on the outer circumferential wall of the structural and functional layer 01 and the second liquid injection hole 035 on the outer circumferential wall of the flange 031, and fill the chamber a011 with coolant and inject 75% of its volume of coolant into the chamber b033.

[0089] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A multi-layer carbon-ceramic brake disc, comprising a structural functional layer and friction functional layers compounded on both side surfaces thereof, characterized in that, It further includes an assembly disk for installing the connection structure functional layer and the friction functional layer, a friction compensation unit disposed inside the structure functional layer and used for compensating the performance of the friction functional layer under high-temperature conditions, and a heat conduction unit disposed on the assembly disk and used for dissipating heat from the structure functional layer.

2. A multi-layer carbon-ceramic brake disc according to claim 1, wherein A chamber a for filling coolant is formed inside the structure functional layer. It further includes several groups of compensation holes that penetrate through the structure functional layer along the circumferential direction and are distributed in two rows along the radial direction in each group, several groups of first mounting holes that penetrate through the structure functional layer along the circumferential direction, several groups of first heat conduction holes that penetrate through the inner circular wall of the structure functional layer along the circumferential direction, heat conduction rods that are fitted on the inner walls of the first heat conduction holes and one end of which extends into the chamber a, a first liquid injection hole formed on the outer circular wall of the structure functional layer, and a sealing plug disposed on the first liquid injection hole. The friction compensation unit is adhesively fixed inside the compensation holes and positions the heat conduction rods.

3. The multi-layer carbon-ceramic brake disc according to claim 2, wherein, An air-cooling chamber is formed inside the friction functional layer. It further includes several groups of heat dissipation holes that penetrate through the friction functional layer along the circumferential direction and are distributed in two rows along the radial direction in each group, several groups of ventilation holes that penetrate through the outer circular wall of the friction functional layer along the circumferential direction, and several groups of second mounting holes that penetrate through the friction functional layer along the circumferential direction.

4. The multi-layer carbon-ceramic brake disc according to claim 3, wherein, The assembly disk includes a flange disk, an inner ring disposed on the flange disk and matching with the inner circular wall of the structure functional layer, a chamber b formed inside the flange disk and extending into the inner ring, several groups of second heat conduction holes that penetrate through the outer circular wall of the inner ring along the circumferential direction, a second liquid injection hole formed on the outer circular wall of the flange disk, and several groups of third mounting holes that penetrate through the flange disk along the circumferential direction. The heat conduction unit passes through the third mounting holes, the second mounting holes, and the first mounting holes to fasten the structure functional layer, the friction functional layer, and the assembly disk, and guides the coolant in the chamber a and the coolant in the chamber b to exchange heat under high-temperature environments.

5. A multi-layer carbon-ceramic brake disc according to claim 3, wherein, The friction compensation unit includes two hollow plug columns that are fixed to each other through a connecting rod and match with the compensation holes, a piston column that is slidably disposed inside the hollow plug column and matches with the heat dissipation holes, and a first elastic member disposed between the two piston columns.

6. The multi-layer carbon-ceramic brake disc according to claim 4, wherein, The heat conduction unit includes a hollow bolt, several groups of first overflow holes formed on the hollow bolt and located inside the chamber a, several groups of second overflow holes formed on the hollow bolt and located inside the chamber b, a plug block threadedly disposed at the port of the hollow bolt, a second elastic member disposed on the plug block, and a piston piece disposed at one end of the second elastic member and located between the positions of the first overflow holes and the second overflow holes.

7. A multi-layer carbon-ceramic brake disc production device for producing a multi-layer carbon-ceramic brake disc as described in any one of claims 1-6, characterized in that, It includes a rotary grasping mechanism, and a material discharging mechanism, a processing mechanism, a composite mechanism, and an assembly mechanism arranged along the circumferential direction of the rotary grasping mechanism; The rotary grasping mechanism includes a turntable disposed on a frame, several groups of robotic arms disposed at the output end of the turntable, and a jaw assembly disposed on the robotic arms and used for positioning and grasping the structure functional layer for transfer. The feeding mechanism includes a first workbench, a first carrying component arranged on the first workbench and used for horizontally moving the structural functional layer, and a positioning component arranged on the first workbench and used for positioning the structural functional layer placed on the first carrying component.

8. A production device for a multi-layer carbon-ceramic brake disc according to claim 7, characterized in that, The processing mechanism includes a second workbench, a second carrying component arranged on the second workbench and used for horizontally moving the structural functional layer, a stuffing component arranged on the second workbench and used for sequentially bonding and fixing the friction compensation units in the compensation holes, a penetrating component arranged on the second workbench and used for sequentially penetrating the heat conduction rods from the first heat conduction holes into the chamber a of the structural functional layer, and an adjusting component arranged on the penetrating component and used for driving the structural functional layer to sequentially rotate a specified angle; The composite mechanism includes a third workbench, a third carrying component arranged on the third workbench and used for horizontally moving the structural functional layer, a glue coating component arranged on the third workbench and used for coating glue on the structural functional layer and the friction functional layer, and a rotational force component arranged on the third workbench and used for driving the structural functional layer to rotate. The glue coating component avoids the compensation holes of the structural functional layer and the heat dissipation holes of the friction functional layer.

9. The production equipment of a multi-layer carbon-ceramic brake disc according to claim 8, characterized in that, The assembly mechanism includes a fourth workbench, a fourth carrying component arranged on the fourth workbench and used for horizontally moving the structural functional layer, a tightening component arranged on the fourth workbench and used for tightening the structural functional layer, the assembly disk and the heat conduction unit together, and an adjusting component arranged on the tightening component and used for driving the structural functional layer to sequentially rotate a specified angle.

10. A production method of a multi-layer carbon-ceramic brake disc, implemented by using a production device of a multi-layer carbon-ceramic brake disc as described in claim 9, characterized in that, It includes the following steps: Step 1, pre-treatment process: comb the carbon fiber filaments into felt, impregnate with resin and cure by hot pressing, and then produce the friction functional layer through low-temperature purification - high-temperature purification. The structural functional layer is processed and formed through casting and drilling processes; Step 2, feeding process: manually place the structural functional layer on the first carrying component, the positioning component positions the structural functional layer through the first mounting hole, and the first carrying component then horizontally moves the structural functional layer to the position below the clamping jaw component. The rotational grasping mechanism positions and grasps the structural functional layer through the clamping jaw component and sequentially transfers it to the processing mechanism station, the composite mechanism station, and the assembly mechanism station; Step 3, structural functional layer processing process: the second carrying component horizontally moves the structural functional layer to the position above the penetrating component, the adjusting component drives the structural functional layer to sequentially rotate a specified angle, the penetrating component sequentially penetrates the heat conduction rods from the first heat conduction holes into the chamber a of the structural functional layer. At the same time, the stuffing component sequentially bonds and fixes the friction compensation units in the compensation holes, and the friction compensation units clamp and limit the heat conduction rods in the chamber a; Step 4, composite process. Manually place a friction functional layer on the third carrier assembly first. The rotation force assembly positions the friction functional layer through the second mounting hole, and then drives the friction functional layer to rotate slowly through the second mounting hole. The glue coating assembly coats glue on the surface of the friction functional layer and avoids the heat dissipation holes. Then, the third carrier assembly horizontally moves the friction functional layer to the position below the jaw assembly. The jaw assembly places the structural functional layer on the friction functional layer and positions it through the rotation force assembly, so that the first mounting hole of the structural functional layer is aligned with the second mounting hole of the friction functional layer. Then, the third carrier assembly horizontally moves the structural functional layer to the position above the rotation force assembly again. The glue coating assembly coats glue on the surface of the structural functional layer and avoids the compensation holes. Then, manually place another friction functional layer on the structural functional layer and position it through the rotation force assembly, and then press for composite forming; Step 5, assembly process. The fourth carrier assembly horizontally moves the composite structural functional layer to the position above the adjustment assembly. Then, manually place the assembly disk on the structural functional layer and position it through the adjustment assembly, so that the third mounting hole of the assembly disk is aligned with the first mounting hole of the structural functional layer. The adjustment assembly drives the structural functional layer, the friction functional layer, and the assembly disk to rotate synchronously by a specified angle in sequence. The tightening assembly sequentially fastens the heat conduction units in the third mounting holes of the assembly disk; Step 6, liquid injection process. After the assembly is completed, manually take out the brake disc, and sequentially open the first liquid injection hole on the outer circumferential wall of the structural functional layer and the second liquid injection hole on the outer circumferential wall of the flange. Fill the chamber a with coolant and inject an appropriate amount of coolant into the chamber b.

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