CN106672218A - Carbon/ceramic brake device for airplane - Google Patents
Carbon/ceramic brake device for airplane Download PDFInfo
- Publication number
- CN106672218A CN106672218A CN201611200855.4A CN201611200855A CN106672218A CN 106672218 A CN106672218 A CN 106672218A CN 201611200855 A CN201611200855 A CN 201611200855A CN 106672218 A CN106672218 A CN 106672218A
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- CN
- China
- Prior art keywords
- brake
- component
- disc
- shell
- bearing disc
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C25/00—Alighting gear
- B64C25/32—Alighting gear characterised by elements which contact the ground or similar surface
- B64C25/42—Arrangement or adaptation of brakes
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
The invention relates to a carbon/ceramic brake device for an airplane. A brake shell (2) is arranged on a cylinder base assembly (1), is axially limited through two half snap rings (10), is angularly limited through three check blocks, and is used for fixedly connecting parts; a piston assembly (9) is arranged in the cylinder base assembly (1), and is used for transforming the brake pressure of a brake system into axial thrust force during braking; a steel bearing disc assembly (7) is fixed to one end, which is far away from the cylinder base assembly (1), of the brake shell (2) through a high-strength bolt (16), and is used for bearing the braking thrust force; a compacting disc assembly (3), a movable disc assembly (4), a static disc (5) and a bearing disc (6) are arranged on the brake shell (2), is axially positioned through the steel bearing disc assembly (7), and forms brake force through friction among brake discs; the diameter of the piston assembly is adjusted according to brake performance indexes. The carbon/ceramic brake device has the advantages of simple structure, easiness and convenience in mounting and operation, and convenience in checking and maintenance, and the maintenance workload and labor strength can be lowered remarkably.
Description
Technical field
The present invention relates to the airplane wheel brake field in aircraft airborne equipment, specifically a kind of airplane carbon/pottery brake dress
Put.
Background technology
Airplane brake system generally includes brake machine wheel and tire, and brake machine wheel includes wheel assemblies and brake gear again.
The function of brake gear is to produce skidding torque, absorb aircraft kinetic energy and be converted into heat energy, it is ensured that aircraft landing is braked, stopped
Machine brakes and skidding during engine test.Brake gear is by cylinder holder assembly, brake shell, compression plate component, Moving plate
The parts such as component, quiet disk, bearing disc, steel bearing disc component are constituted, and on cylinder holder assembly piston component is provided with.
During aircraft braking wheel use, brake gear should be able to provide enough brake torques, so as to realize that aircraft is fast
Speed braking；Piston reliably should be able to rapidly be realized braking and releasing brake, it is ensured that brake gear high reliability works；Brake disc exists
When absorbing the heat energy of aircraft kinetic energy conversion, should need with enough mechanical strength and stability, meanwhile, brake disc is used as damage
Consumable component, should have higher service life, and working service is convenient；The weight of the brake gear of aircraft should be as little as possible, is conducive to
Aircraft own wt is reduced, load is improved.
The brake gear that certain series aircraft is used, the powder metallurgy brake material for adopting is for third generation brake material, material
Density is big, and wear rate is larger, tolerates only about 400 DEG C of brake temperature, and the easy buckling deformation of high temperature, cracking, causes brake gear weight
Amount weight, service life only about 250 is risen and fallen, and working service workload is big；The ratchet debooster that piston is used, adjusts gap sensitivity
It is not high, and be a kind of external gap-adjusting structure, environmental suitability is poor.Above deficiency constrains the series aircraft performance
Lifted, working service is relatively costly, and the requirement that aircraft fighting capacity is persistently lifted gradually has been unsatisfactory for.
Existing homologous series aircraft has started to use carbon/pottery brake gear, and the carbon that it is adopted/pottery composition braking material is for the 5th
For brake material, with density it is low, wear rate is little, tolerable temperature is up to 1000 DEG C or so, and has stable high-temperature performance.But with powder
Metallurgical brake gear is compared, and the brake system pressure parameter that both match is different, the frictional behavior obvious difference of bi-material,
Under the conditions of not changing brake system pressure parameter, interface relationship etc., it is impossible to directly substitute powder using existing carbon/pottery brake gear
Metallurgical brake gear, can otherwise reduce braking efficiency, bring and use hidden danger, or even affect using safety.
The content of the invention
The purpose of invention
It is that a kind of airplane carbon/pottery brake gear is provided, is not changing interface relationship, brake system parameter, installing/dismounting
And when operation is required, realize realizing being substituted for each other with the powder metallurgy brake gear of the series aircraft first, brake
Performance meets use requirement, and making product loss of weight about 42%, brake disc life-span improve about 400%, quiet braking quality improves about 36%,
Line maintenance workload is reduced, labor intensity is reduced.
The technical scheme of invention
A kind of airplane carbon/pottery brake gear of the present invention, including cylinder holder assembly 1, brake shell 2, compression plate group
Part 3, dynamic disk component 4, quiet disk 5, bearing disc 6, steel bearing disc component 7, piston component 9, half snap ring 10, block 15 etc..Brake shell
Body 2 is arranged on cylinder holder assembly 1, and by 2 half snap rings 10 axial limiting is carried out, and angular spacing, use is carried out by 3 blocks
In each spare part that is connected and fixed；Piston component 9 is arranged in cylinder holder assembly 1, the brake pressure of brake system is converted into and is stopped
Axial thrust during car；Steel bearing disc component 7 is fixed on brake shell 2 away from cylinder holder assembly 1 by high-strength bolt 16
One end, for bearing brake thrust；Compression plate component 3, dynamic disk component 4, quiet disk 5, bearing disc 6 are arranged in brake shell 2,
Dynamic and static disk two two is separated by, and is angularly positioned by the keyway of brake shell 2, by the axially position of steel bearing disc component 7, by brake disc
Between friction form brake control power；Indicating arm 11 is arranged on compression plate component 3, and for brake disc anti-misloading and observation are installed
Brake disc state of wear；The quantity of compression plate component 3 is 1, and the quantity of dynamic disk component 4 is 4, and the quantity of quiet disk 5 is 3, bearing disc 6
Quantity is 1, and each brake disc is carbon/pottery bearing disc；The quantity of piston component 11 is 6, is uniformly divided around the axis of brake shell 2
Cloth, wherein have two piston components adjacent with cylinder seat check valve 19 and blocking 21, and with regard to check valve 19 and blocking 20
Centrage is in specular.
Piston component 11 adopts automatic clearance adjustment mechanism, and braking gap is automatically adjusted when realizing brake, and its diameter is according to stopping
Car performance indications are adjusted.
The quantity of indicating arm 11 is 2, is respectively near cylinder seat check valve and blocking, when the left and right in specular
When brake gear is installed, there is peak of 1 indicating arm after brake gear installation all the time, be easy to observation.
There is certain deviation amount in two lines of indicating arm 11, be capable of achieving anti-when compression plate component is installed with brake disc diameter
Misloading, while increasing the working place being exhausted by check valve on cylinder holder assembly.
The advantage of invention
Carbon/pottery the brake gear of the present invention, is stopped in QP584 " aircraft tyre wheel brake dynamic test stand "
Car performance test, compared with powder metallurgy brake gear, braking quality meets the braking use requirement of aircraft, and product loss of weight is about
42%th, the brake disc life-span improve to more than 400%, quiet braking ability improves 36%.
Taken a flight test by outfield installation and shown, carbon of the present invention/pottery brake gear performance improvement substantially, disclosure satisfy that to use and want
Ask；Product structure is succinct, and installation operation is easy, and Inspection and maintenance is convenient；Product weight is light, automatic clearance adjustment mechanism piston component is not required to
Artificial adjustment, brake disc life-span length again, can obviously reduce maintenance workload and labor intensity.
4th, illustrate
Fig. 1 is the three dimensional structure diagram of the present invention；
Fig. 2 is the two-dimensional structure sectional view of the present invention；
Fig. 3 is the two-dimensional structure right view of the present invention；
Fig. 4 is the compression plate modular construction schematic diagram of the present invention；
Fig. 5 is the cylinder seat modular construction schematic diagram of the present invention；
Fig. 6 is the present invention and the supporting structural representation of wheel assemblies；
Fig. 7 is the powder metallurgy brake device structure schematic diagram that can be substituted for each other with the present invention.
Fig. 8 is the present invention and powder metallurgy brake gear interface structure contrast schematic diagram.
Specific embodiment
Below in conjunction with the accompanying drawings the invention will be described further with specific embodiment, but not as a limitation of the invention.
As Figure 1-Figure 8, the brake gear has dividing for left and right part, and the part on the part of left and right is identical, its difference
It is that mounting seat, check valve, automatic anti-slip actuating device are different with the installation site of sensor drive unit.
The brake shell is processed using titanium alloy material, is important load part, with bolt and aircraft main landing gear
On ring flange fix, the axial thrust of moment of torsion and piston when bearing brake.Automatic anti-slip actuating device and sensor are driven
Device is separately mounted in brake shell, for gathering brake signal.
The brake shell is arranged on cylinder holder assembly, by half snap ring axial limiting, is angularly positioned by block；Steel
Bearing disc component is fixed on the one end of brake shell away from cylinder holder assembly by high-strength bolt, bears brake thrust.
The cylinder holder assembly is arranged near one end of ring flange in brake shell, and major function is by brake system
Brake pressure is converted into axial thrust during brake, is also the mounting platform of 6 piston components.
When the piston component brakes, stretch out under brake pressure effect, brake disc is compressed, by mutual between brake disc
Friction produces brake force；When getting off the brakes, brake pressure release, piston automatically resets under return spring effect, releasing of brake
Disk, releases brake.
The brake disc includes 1 compression plate component, 4 dynamic disk components, 3 quiet disks and 1 bearing disc, compression plate and holds
Platen is used as the quiet disk of one side.Dynamic and static disk two two is separated by, and the convex key on quiet disk internal diameter is arranged on the key on brake shell barrel
In groove, the brake shell being relatively fixed on undercarriage is static, it is impossible to rotate, and can slide axially along brake shell keyway；
Keyway on Moving plate external diameter is arranged on the guide rail of wheel assemblies, can be rotated with wheel assemblies, and is slid axially along guide rail.
2 indicating arms are housed on the compression plate component, are respectively near cylinder seat check valve and blocking, and two
There is certain deviation amount in indicating arm line, be capable of achieving error protection and install with brake disc diameter, be easy to the abrasion journey of check brakes disk
Degree.
The steel bearing disc component is fixed by high-strength bolt with brake shell, for bearing axial direction brake during brake
Thrust.
Carbon/pottery brake gear operation principle：Carbon/pottery brake gear is loaded on main landing gear together with wheel assemblies, aircraft
When sliding, in ground surface, 4 dynamic disk components are rolled the wheel assemblies of mounting tyre with wheel assemblies, and brake shell is solid
It is scheduled on undercarriage ring flange, 1 compression plate component, 3 quiet disks, 1 bearing disc are arranged in brake shell and undercarriage phase
To static, do not rotate.When aircraft brake, hydraulic coupling promotes piston to compress brake disc, makes to be produced between each brake disc and quite rubs
Wipe, produce brake drag；When releasing of brake, brake pressure release, piston is retracted automatically, and releasing of brake disk releases brake.
Only certain embodiments of the present invention has been made to elaborate to present disclosure.To persons skilled in the art
Speech, without departing from the premise in the spirit of the present invention to any obvious change that it is done, is all constituted to patent of the present invention
Infringement.
Claims (4)
1. a kind of airplane carbon/pottery brake gear, including cylinder holder assembly (1), brake shell (2), compression plate component (3), Moving plate
It is special for component (4), quiet disk (5), bearing disc (6), steel bearing disc component (7), piston component (9), half snap ring (10), block (15)
Levy and be；Brake shell (2) carries out axial limiting, by 3 on cylinder holder assembly (1) by 2 half snap rings (10)
Block carry out it is angular spacing, for each spare part that is connected and fixed；Piston component (9) will brake in cylinder holder assembly (1)
The brake pressure of system is converted into axial thrust during brake；Steel bearing disc component (7) is fixed on by high-strength bolt (16)
Brake shell (2) away from cylinder holder assembly (1) one end, for bearing brake thrust；Compression plate component (3), dynamic disk component
(4), in brake shell (2), dynamic and static disk two two is separated by, by the keyway of brake shell (2) for quiet disk (5), bearing disc (6)
Angular positioning, by steel bearing disc component (7) axially position, by friction between brake disc brake control power is formed；Indicating arm
(11) on compression plate component (3), anti-misloading and observation brake disc state of wear are installed for brake disc；Compression plate component
(3) quantity is 1, and dynamic disk component (4) quantity is 4, and quiet disk (5) quantity is 3, and bearing disc (6) quantity is 1, each brake
Disk is carbon/pottery bearing disc；Piston component (9) quantity is 6, is uniformly distributed around brake shell (2) axis, wherein there is two
Piston component is adjacent with cylinder seat check valve (19) and blocking (21), and with regard to check valve (19) and blocking (20) centrage
In specular.
2. brake gear as claimed in claim 1, it is characterised in that：Piston component (9) adopts automatic clearance adjustment mechanism, realizes stopping
Braking gap is automatically adjusted during car, and its diameter is adjusted according to braking quality index.
3. brake gear as claimed in claim 1, it is characterised in that：Indicating arm (11) quantity is 2, is respectively at cylinder seat
Near check valve (19) and blocking (21), when the left and right brake gear in specular is installed, have all the time at 1 indicating arm
In being easy to observation place.
4. brake gear as claimed in claim 3, it is characterised in that：There is skew with brake disc diameter in indicating arm (11) line
Amount, the anti-misloading being capable of achieving when compression plate component is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611200855.4A CN106672218A (en) | 2016-12-22 | 2016-12-22 | Carbon/ceramic brake device for airplane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611200855.4A CN106672218A (en) | 2016-12-22 | 2016-12-22 | Carbon/ceramic brake device for airplane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106672218A true CN106672218A (en) | 2017-05-17 |
Family
ID=58871396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611200855.4A Pending CN106672218A (en) | 2016-12-22 | 2016-12-22 | Carbon/ceramic brake device for airplane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106672218A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110541900A (en) * | 2019-08-22 | 2019-12-06 | 北京北摩高科摩擦材料股份有限公司 | Helicopter brake device |
| CN113258716A (en) * | 2021-06-24 | 2021-08-13 | 江苏梦天机电科技有限公司 | Motor brake device |
| 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 (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2671387B1 (en) * | 1991-01-08 | 1995-04-14 | Pechiney Recherche | FRICTION TORQUE COMPRISING TWO PARTS HAVING FRICTION SURFACES IN CERAMIC AND CARBON-CARBON RESPECTIVELY. |
| CN201296382Y (en) * | 2008-03-14 | 2009-08-26 | 北京北摩高科摩擦材料有限责任公司 | Airplane brake wheel |
| CN105151283A (en) * | 2015-09-15 | 2015-12-16 | 西安航空制动科技有限公司 | Control method for aircraft carbon-ceramic wheel braking system with adjustable maximum braking pressure |
| CN106114827A (en) * | 2016-06-30 | 2016-11-16 | 北京北摩高科摩擦材料有限责任公司 | A kind of main airplane wheel |
-
2016
- 2016-12-22 CN CN201611200855.4A patent/CN106672218A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2671387B1 (en) * | 1991-01-08 | 1995-04-14 | Pechiney Recherche | FRICTION TORQUE COMPRISING TWO PARTS HAVING FRICTION SURFACES IN CERAMIC AND CARBON-CARBON RESPECTIVELY. |
| CN201296382Y (en) * | 2008-03-14 | 2009-08-26 | 北京北摩高科摩擦材料有限责任公司 | Airplane brake wheel |
| CN105151283A (en) * | 2015-09-15 | 2015-12-16 | 西安航空制动科技有限公司 | Control method for aircraft carbon-ceramic wheel braking system with adjustable maximum braking pressure |
| CN106114827A (en) * | 2016-06-30 | 2016-11-16 | 北京北摩高科摩擦材料有限责任公司 | A kind of main airplane wheel |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110541900A (en) * | 2019-08-22 | 2019-12-06 | 北京北摩高科摩擦材料股份有限公司 | Helicopter brake device |
| CN113258716A (en) * | 2021-06-24 | 2021-08-13 | 江苏梦天机电科技有限公司 | Motor brake device |
| CN113258716B (en) * | 2021-06-24 | 2021-09-17 | 江苏梦天机电科技有限公司 | Motor brake device |
| 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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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170517 |