CN103615479A - Carbon brake disc assembly provided with isolation pads - Google Patents
Carbon brake disc assembly provided with isolation pads Download PDFInfo
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- CN103615479A CN103615479A CN201310609041.6A CN201310609041A CN103615479A CN 103615479 A CN103615479 A CN 103615479A CN 201310609041 A CN201310609041 A CN 201310609041A CN 103615479 A CN103615479 A CN 103615479A
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- disc assembly
- isolation pad
- brake disc
- carbon
- brake
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Abstract
A carbon brake disc assembly provided with isolation pads and used for a plane comprises four movable discs, wherein static disc assemblies are arranged between every two movable discs. Each static disc assembly is composed of two static discs 5 and an isolation pad 4, wherein the isolation pad formed by deposition of satin weave carbon cloth is clamped between the two static discs. Pressing discs 1 are located at one end of the carbon brake disc assembly 3, one surface of each pressing disc is in contact with the corresponding movable disc 2, and the other surface of each pressing disc bears braking force from a piston assembly during braking. Pressure bearing discs 6 are located at the other end of the carbon brake disc assembly, one surface of each pressure bearing disc 6 is in contact with the corresponding movable disc 2, and the other surface of each pressure bearing disc 6 is matched with a braking shell body through a pressure bearing cup. The isolation pads are compressible and recoverable and can relieve vibration of a brake device of the plane during braking and eliminate moment charging at the earlier stage of braking. Test results show that compared with a carbon brake disc assembly not provided with the isolation pads, the carbon brake disc assembly provided with the isolation pads has the advantages that vibration is reduced by 10% and high-amplitude vibration time is shortened by 15%.
Description
Technical field
The invention belongs to aircraft airborne apparatus field, specifically a kind of carbon brake disc assembly that has isolation pad.
Background technique
Carbon brake disc assembly is one group and is arranged on Moving plate and the quiet dish of alternative arrangement on brake housing, and Moving plate rotates with together with guide rail engagement on wheel hub inner chamber by the key on external diameter, and quiet dish is relative static by the guide rail engagement maintenance on the key on internal diameter and brake housing.Moving plate and quiet dish in domestic and international traditional carbon brake disc assembly is compact structure at present, can not be compressed, when braking, brake pressure is set up rapidly at short notice, thereby produces moment and rush peak at the high regime of the brake process initial stage that especially brakes.Brake torque rushes peak and produces larger brake weight, brake weight acts directly on undercarriage, and in a short period of time by the peak value that is raised to above freezing, because air speed is now in high regime, undercarriage is subject to the higher surface friction drag that brake produces in the situation that airplane inertial power does not decline simultaneously, two in opposite directions the acting in conjunction of power make undercarriage be subject to intense impact, reduced Security, the travelling comfort of aircraft when take-off and landing.
The vibration that traditional brake disc assembly causes owing to interacting between brake disc in brake process runs through the whole process of aircraft brake, such vibration not only can cause to undercarriage the reduction of intensity, even cause the damage of undercarriage axle, also can introduce undesired signal to anti-skid brake system (ABS) simultaneously, produce " vacation is skidded " phenomenon, bring injurious effects to the work of anti-skid brake system (ABS).
Summary of the invention
In order to reduce carbon brake disc assembly, in the moment of brake process generation, rush peak and the impact of vibration on aircraft and brake system, the present invention proposes a kind of carbon brake disc assembly that has isolation pad.
The present invention includes compression plate, 3 quiet dish assemblies, 4 Moving plates, bearing disc, quiet dish and isolation pad.Described quiet dish assembly forms by 2 quiet dishes and 1 isolation pad, and described isolation pad take satin weave carbon cloth as material forms through CVD deposit manufacture, is installed between 2 quiet dishes.3 quiet dish assemblies lay respectively between each Moving plate.Compression plate is positioned at one end of carbon brake disc assembly, and a surface of this compression plate contacts with Moving plate, and when brake born from the brake weight of piston assembly in another surface.The external dimension of compression plate are identical with quiet dish.Bearing disc is positioned at the other end of described carbon brake disc assembly, and a surface of this bearing disc contacts with Moving plate, and another surface coordinates with brake housing by pressure-bearing cup.
External peripheral surface at described each Moving plate is evenly distributed with respectively a plurality of keyways and the keyway that wheel hub inner chamber middle guide coordinates, and carbon brake disc assembly is rotated together with wheel.
Described quiet dish inner circumferential surface is evenly distributed with 14 keyways, for the guide rail with braking on housing, coordinates.The inner circumferential surface of described isolation pad is distributed with the keyway a plurality of and engagement of brake housing upper rail.
In the present invention, bearing disc and compression plate are positioned at the two ends of carbon brake disc assembly, and bearing disc keeps relative static by the keyway on its internal diameter with the guide rail engagement on brake housing with compression plate.At compression plate and bearing disc midfeather, 4 Moving plates and 3 quiet dish assemblies are housed.Moving plate rotates with together with guide rail engagement on wheel hub inner chamber by the keyway on external diameter, with isolation pad and the relative movement of quiet dish assembly.Keyway by the quiet dish in quiet dish assembly and isolation pad inner circumferential surface keeps relative static with the guide rail engagement on brake housing.
Isolation pad is to take satin weave carbon cloth as material forms through CVD deposit manufacture, has compressible and recoverable feature.After machining, isolation pad is placed between two quiet dishes as cushion pad.When brake disc assembly brakes, brake pressure mutually pushes brake disc and forms friction through transmitting, thereby generation brake torque, installing additional of isolation pad will make brake pressure be cushioned when transmitting, can not be delivered to fast between all the other discs, the generation of brake torque also can postpone, therefore, install isolation pad additional and can effectively eliminate brake early stage moment and charge, the vibration of braking device while reducing brake.
Accompanying drawing 5 and accompanying drawing 6 are respectively and do not install and install additional isolation pad wheels-locked testing curve additional, as can be seen from the figure, the brake disc assembly brake of not installing isolation pad additional has very high moment to charge early stage, brake torque value is 24.5kNm, and the brake disc assembly moment values in brake early stage that has installed isolation pad additional is 20.1kNm.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of isolation pad;
Accompanying drawing 3 is structural representations of the present invention;
Accompanying drawing 4 is structural representations of quiet dish;
Accompanying drawing 5 is not install isolation pad wheels-locked testing curve additional;
Accompanying drawing 6 is to install isolation pad wheels-locked testing curve additional.
In figure: 1. compression plate; 2. Moving plate; 3. quiet dish assembly; 4. isolation pad; 5. quiet dish; 6. bearing disc.
Embodiment
An aircraft carbon brake disc assembly that has isolation pad, comprises compression plate 1, quiet dish assembly 3, Moving plate 2, bearing disc 6, quiet dish 5 and isolation pad 4.Described Moving plate 2 adopts prior art.
As shown in Figure 3, described carbon brake disc assembly comprises 4 Moving plates altogether, has 1 quiet dish assembly between each Moving plate.Described quiet dish assembly is comprised of 2 quiet dishes 5 and 1 isolation pad 4; Isolation pad is installed between 2 quiet dishes.Compression plate 1 is positioned at one end of carbon brake disc assembly 3, and a surface of this compression plate contacts with Moving plate 2, and when brake born from the brake weight of piston assembly in another surface.The external dimension of compression plate are identical with quiet dish.Bearing disc 6 is positioned at the other end of described carbon brake disc assembly, and a surface of this bearing disc 6 contacts with Moving plate 2, and another surface coordinates with brake housing by pressure-bearing cup.
External peripheral surface at described each Moving plate is evenly distributed with respectively a plurality of keyways and the keyway that wheel hub inner chamber middle guide coordinates, and carbon brake disc assembly is rotated together with wheel.In the present embodiment, the external peripheral surface of each Moving plate has 8 keyways, by coordinating of described each keyway and wheel hub inner chamber middle guide, carbon brake disc assembly is rotated together with wheel.
As shown in Figure 4, quiet dish 5 is for there being the disk of center hole, and thickness is 1/2 of Moving plate thickness.Described quiet dish inner circumferential surface is evenly distributed with the keyway coordinating with the housing guide rail that brakes.In the present embodiment, the inner circumferential surface of each quiet dish has 14 keyways.
As shown in Figure 1, 2, the structure of isolation pad 4 is identical with the structure of quiet dish 5, is all the disk of center hole, and thickness is 1mm～2mm.The manufacturing process of isolation pad 4 and quiet dish, Moving plate 2 is all different, it be take the satin weave carbon cloth of (1.6 ± 0.1) mm as material, after CVD deposits (70 ± 10) h, carry out the processing of preventing high temperature oxidation coating and make.
There is the center hole coordinating with undercarriage axle at the center of isolation pad 4, and the diameter of this center hole is identical with the center-hole diameter of coordinated quiet dish 5.The inner circumferential surface of isolation pad is distributed with 14 sectional shapes and is rectangular keyway.Described 14 keyways all mesh with the guide rail braking on housing, and its shape and size are all determined according to the shape and size of coordinated brake housing guide rail.In the present embodiment, in 14 guide rails of aircraft brake housing, the boundary dimension of a guide rail is greater than the boundary dimension of all the other 13 guide rails, therefore the size of 1 keyway on isolation pad inner hole wall is greater than the size of other 13 keyways.Described 14 keyways are distributed on the circumference of isolation pad center hole, by the keyway of described isolation pad inner circumferential surface and the engagement between brake housing guide rail, make to keep relatively static between the two.
Isolation pad is to be formed by the manufacture of satin weave carbon cloth, very soft and its interlayer of satin weave carbon cloth reset condition has very large gap, and the sedimentation time of making isolation pad is also few a lot of than the carbon felt sedimentation time of making carbon dish, so satin weave carbon cloth has good toughness after being processed into isolation pad, interlayer still has larger gap, there is compressibility and reversibility feature.Therefore in the time of, can slowing down aircraft brake, the vibration of braking device and elimination brake moment in early stage are charged.According to aircraft carbon brake disc assembly braking quality test result, the carbon brake disc assembly of dress isolation pad can reduce carbon brake disc assembly vibration 10% than the carbon brake disc assembly that is unkitted isolation pad, and high amplitude time of vibration shortens 15%.
Claims (4)
1. a carbon brake disc assembly that has isolation pad, is characterized in that, comprises compression plate, 3 quiet dish assemblies, 4 Moving plates, bearing disc, quiet dish and isolation pad; Described quiet dish assembly forms by 2 quiet dishes and 1 isolation pad, and described isolation pad take satin weave carbon cloth as material forms through CVD deposit manufacture, is installed between 2 quiet dishes; 3 quiet dish assemblies lay respectively between each Moving plate; Compression plate is positioned at one end of carbon brake disc assembly, and a surface of this compression plate contacts with Moving plate, and when brake born from the brake weight of piston assembly in another surface; The external dimension of compression plate are identical with quiet dish; Bearing disc is positioned at the other end of described carbon brake disc assembly, and a surface of this bearing disc contacts with Moving plate, and another surface coordinates with brake housing by pressure-bearing cup.
2. the carbon brake disc assembly that has as claimed in claim 1 isolation pad, is characterized in that, at the external peripheral surface of described each Moving plate, is evenly distributed with respectively a plurality of keyways and the keyway that wheel hub inner chamber middle guide coordinates, and carbon brake disc assembly is rotated together with wheel.
3. the carbon brake disc assembly that has as claimed in claim 1 isolation pad, is characterized in that, described quiet dish inner circumferential surface is evenly distributed with a plurality of keyways that coordinate with brake housing guide rail.
4. the carbon brake disc assembly that has as claimed in claim 1 isolation pad, is characterized in that, the inner circumferential surface of isolation pad is distributed with the keyway a plurality of and engagement of brake housing upper rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310609041.6A CN103615479A (en) | 2013-11-22 | 2013-11-22 | Carbon brake disc assembly provided with isolation pads |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310609041.6A CN103615479A (en) | 2013-11-22 | 2013-11-22 | Carbon brake disc assembly provided with isolation pads |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103615479A true CN103615479A (en) | 2014-03-05 |
Family
ID=50166192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310609041.6A Pending CN103615479A (en) | 2013-11-22 | 2013-11-22 | Carbon brake disc assembly provided with isolation pads |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103615479A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106884911A (en) * | 2017-04-17 | 2017-06-23 | 湖南世鑫新材料有限公司 | A kind of bullet train complete disc brake with excellent heat dispersion performance |
| CN113898686A (en) * | 2021-08-25 | 2022-01-07 | 西安航空制动科技有限公司 | Combined brake disc of aircraft wheel |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4585096A (en) * | 1984-08-03 | 1986-04-29 | The B. F. Goodrich Company | Brake apparatus |
| CN200975430Y (en) * | 2006-01-25 | 2007-11-14 | 王淑敏 | Braking brake disc assistant of landing gear |
| CN201003558Y (en) * | 2006-01-25 | 2008-01-09 | 王淑敏 | Undercarriage brake disc pair |
| CN201037519Y (en) * | 2007-02-09 | 2008-03-19 | 王淑敏 | Undercarriage brake disc |
| CN102635651A (en) * | 2012-04-20 | 2012-08-15 | 陕西蓝太航空设备有限责任公司 | Airplane carbon brake disc with big-thickness difference structure and maintenance method for airplane carbon brake disc |
| CN102889324A (en) * | 2012-10-18 | 2013-01-23 | 西安航空制动科技有限公司 | Stationary disc of aircraft carbon brake disc brake |
-
2013
- 2013-11-22 CN CN201310609041.6A patent/CN103615479A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4585096A (en) * | 1984-08-03 | 1986-04-29 | The B. F. Goodrich Company | Brake apparatus |
| CN200975430Y (en) * | 2006-01-25 | 2007-11-14 | 王淑敏 | Braking brake disc assistant of landing gear |
| CN201003558Y (en) * | 2006-01-25 | 2008-01-09 | 王淑敏 | Undercarriage brake disc pair |
| CN201037519Y (en) * | 2007-02-09 | 2008-03-19 | 王淑敏 | Undercarriage brake disc |
| CN102635651A (en) * | 2012-04-20 | 2012-08-15 | 陕西蓝太航空设备有限责任公司 | Airplane carbon brake disc with big-thickness difference structure and maintenance method for airplane carbon brake disc |
| CN102889324A (en) * | 2012-10-18 | 2013-01-23 | 西安航空制动科技有限公司 | Stationary disc of aircraft carbon brake disc brake |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106884911A (en) * | 2017-04-17 | 2017-06-23 | 湖南世鑫新材料有限公司 | A kind of bullet train complete disc brake with excellent heat dispersion performance |
| CN113898686A (en) * | 2021-08-25 | 2022-01-07 | 西安航空制动科技有限公司 | Combined brake disc of aircraft wheel |
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Application publication date: 20140305 |