CN106394877B - A kind of brake shell and pressure-bearing cup of aircraft brake system - Google Patents
A kind of brake shell and pressure-bearing cup of aircraft brake system Download PDFInfo
- Publication number
- CN106394877B CN106394877B CN201610893398.5A CN201610893398A CN106394877B CN 106394877 B CN106394877 B CN 106394877B CN 201610893398 A CN201610893398 A CN 201610893398A CN 106394877 B CN106394877 B CN 106394877B
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- China
- Prior art keywords
- pressure
- bearing cup
- brake shell
- brake
- shell
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- 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
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- 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
Abstract
A kind of brake shell and pressure-bearing cup of aircraft brake system, the center of the pressure-bearing cup is provided with strip-shaped hole, and the geometric center of the strip-shaped hole is made to be overlapped with the center of circle of pressure-bearing cup；The pressure-bearing cup bottom surface there are two axially projecting boss, and the boss is distributed in the both sides of the strip-shaped hole length direction；The outer surface and brake shell line contact of the boss after pressure-bearing cup and brake shell coordinate.Pressure-bearing cup bottom surface there are two axially projecting convex key, and the convex key is distributed in the both ends of strip-shaped hole；The convex key is used to coordinate with the rivet hole in brake shell.It is machined with the square groove coordinated with the convex key in connection brake shell and the rivet hole periphery of pressure-bearing cup.The brake shell of the present invention is arc brought into linear contact with pressure-bearing cup contact surface, avoids pressure-bearing cup and step rivet bears shearing force, improve the reliability between brake shell and pressure-bearing cup.
Description
Technical field
The present invention relates to a kind of aircraft brake system brake device structure, the brake in specifically a kind of aircraft brake system
The structure and the two connection type of shell and pressure-bearing cup.
Technical background
Aircraft brake system generally use tray type structure.Mainly by cylinder holder assembly, brake shell, bearing disc, Moving plate group
The compositions such as part, quiet disk, compression plate and pressure-bearing cup.Pressure-bearing cup big end is embedded in the hole on bearing disc, pressure-bearing cup small end and brake shell
Body with rivet interlacement together.
The operation principle of aircraft brake system：High pressure oil enters cylinder seat plunger shaft, and piston is under pressure to Forward
It is dynamic, brake disc is compressed, stops and shuts down wheel.Brake pressure passes to brake disc, pressure-bearing cup and brake by piston successively in the process
Vehicle shell, brake disc and brake shell will produce certain deformation under the action of brake pressure, brake disc and brake under room temperature
The deflection of vehicle shell is substantially suitable, and pressure-bearing cup is primarily subjected to the positive pressure that brake pressure passes over rivet.But it brakes
Process brake disc friction will produce amount of heat, and brake rear brake hull temperature often reaches 900 DEG C or more, brake disc and brake shell
For body at high temperature due to the thermal expansion factor difference of material, the thermal deformation difference of generation is larger, at this time pressure-bearing cup with brake shell not
Only to be still suffered from larger shearing force by positive pressure.
Pressure-bearing cup is generally plane and plane contact or pressure-bearing cup insertion brake shell with brake shell in the prior art
On corresponding aperture in mounting means, together with rivet interlacement.Since high temperature influences after brake, brake disc and brake shell
Deflection difference it is larger, cause pressure-bearing cup or rivet to bear larger shearing force, cause pressure-bearing cup or rivet to be broken, influence to fly
Machine is safe to use.
Invention content
To overcome security risk existing in the prior art, the present invention to propose a kind of brake shell of aircraft brake system
With pressure-bearing cup.
In the present invention, the center of the pressure-bearing cup is provided with strip-shaped hole, and makes the geometric center and pressure-bearing cup of the strip-shaped hole
The center of circle overlaps；The inner surface at both ends is arc surface in the strip-shaped hole；The pressure-bearing cup bottom surface there are two axially projecting
Boss, and the boss is distributed in the both sides of the strip-shaped hole length direction, this is convex after pressure-bearing cup coordinates with brake shell
The outer surface of platform and brake shell line contact；The pressure-bearing cup bottom surface there are two axially projecting convex key, and
And the convex key is distributed in the both ends of the strip-shaped hole；The convex key is used to coordinate with the rivet hole in brake shell.It brakes in connection
The rivet hole periphery of shell and pressure-bearing cup is machined with the square groove coordinated with the convex key.
The outer surface of the boss of the bottom surface of the pressure-bearing cup is cambered surface or plane.
When the outer surface of the boss on pressure-bearing bottom of a cup surface is cambered surface, brake shell and the pressure-bearing cup are matched
Upper surface at conjunction, which is processed into, to be a plane or an arc surface；When the outer surface of the boss on pressure-bearing bottom of a cup surface is plane,
Cambered surface is processed into upper surface at brake shell and the pressure-bearing cup cooperation.
When the outer surface of the boss is cambered surface, after pressure-bearing cup coordinates with brake shell, the boss side surface
Cambered surface forms line with the plane on brake shell surface and contacts；When the outer surface of the boss is plane, pressure-bearing cup and brake
After the cooperation of vehicle shell, plane and the brake shell curved surfaces of the boss side surface form line and contact；When the outside of the boss
When surface is cambered surface, after pressure-bearing cup coordinates with brake shell, cambered surface and the brake shell curved surfaces shape of the boss side surface
It is contacted at line.
The length of the strip-shaped hole is 6~8.5mm, and width is 4~6mm, the radius at both ends is 2.75~3.75mm；Institute
The width for stating key is 4.5~6.5mm.
The appearance and size of the square groove is 16~21mm × 6~8mm × 2~5mm.
A kind of brake shell of present invention proposition, pressure-bearing cup connection structure and connection type, to solve conventional brake device brake
The problem of pressure-bearing cup or rivet are broken after vehicle thermal deformation.
In the present invention, the brake shell and pressure-bearing cup contact surface are arc brought into linear contact, including brake shell cambered surface, are held
Compression cup plane contact, brake shell plane, the contact of pressure-bearing cup cambered surface or brake shell cambered surface, pressure-bearing cup cambered surface contact three kinds
Situation.
The rivet is step rivet, and step rivet passes through pressure-bearing cup kidney-shaped rivet hole and brake shell rivet hole, step
Rivet is fastened in brake shell by rivet small end, and big end is sleeved in pressure-bearing cup kidney slot.
Connection structure proposed by the invention includes following characteristics：
Pressure-bearing cup is not subject to shearing force.The rear brake hull temperature of braking generally 900 DEG C or more, brake shell 500 DEG C with
On, at high temperature due to the thermal expansion factor difference of material, the thermal deformation of brake disc is far smaller than braked for brake disc and brake shell
The thermal deformation of shell big end is arc brought into linear contact between the brake shell and the pressure-bearing cup, pressure-bearing cup and brake shell
Contact site can be not subject to shearing force according to the uneven deformation adjust automatically of brake disc and brake shell, pressure-bearing cup.
Step rivet is not subject to shearing force.The pressure-bearing cup is connect with the step rivet by the waist-shaped hole on pressure-bearing cup
Together, step rivet only plays definitely restriction effect to the play in pressure-bearing cup edge aperture direction, and there is no fastening functions.Brake
The relative position of rivet and pressure-bearing cup changes with the deformation of brake shell afterwards, but pressure-bearing cup passes through waist type with step rivet
Hole connects, and not will produce shearing between rivet and pressure-bearing cup.
Description of the drawings
Fig. 1 is the cooperation schematic diagram of pressure-bearing cup and brake shell in the prior art；Wherein, 1a is that plane is matched with plane contact
The schematic diagram of conjunction, 1b are the schematic diagrames of embedded cooperation.
Fig. 2 is the structural schematic diagram of the pressure-bearing cup of arc surface；Wherein, 2a is front view, and 2b is side view, and 2c is to overlook
Figure.
Fig. 3 is the structural schematic diagram of the brake shell of plane；Wherein, 3a is partial front elevation view, and 3b is partial side view, 3c
It is partial top view.
Fig. 4 is the structural schematic diagram of the pressure-bearing cup of plane；Wherein, 4a is front view, and 4b is side view, and 4c is vertical view.
Fig. 5 is the structural schematic diagram of the brake shell of arc surface；Wherein, 5a is partial front elevation view, and 5b is partial side view,
5c is partial top view.
Fig. 6 is the cooperation schematic diagram of the pressure-bearing cup of arc surface and the brake shell of plane.
Fig. 7 is the cooperation schematic diagram of the pressure-bearing cup of plane and the brake shell of arc surface.
Fig. 8 is the cooperation schematic diagram of the pressure-bearing cup of arc surface and the brake shell of arc surface.
In figure：1. pressure-bearing cup；2. rivet；3. brake shell；4. boss；5 convex keys.
Specific implementation mode
Embodiment one
The present embodiment is to use Mr. Yu's type machine brake gear, including pressure-bearing cup 1, rivet 2 and brake shell 3.
The pressure-bearing cup 1 is improved to obtain to the prior art.The pressure-bearing cup is revolving body, and center is provided with item
Shape hole, and the geometric center of the strip-shaped hole is made to be overlapped with the center of circle of pressure-bearing cup；The end face of the strip-shaped hole is arc surface.At this
There is axially projecting boss 4 on the pressure-bearing bottom of a cup surface of shape hole length direction both sides respectively, the outer surface of each boss is arc
Face, after the pressure-bearing cup and brake shell cooperation, the cambered surface of the boss side surface forms line with the plane on brake shell surface
Contact.There is axially projecting convex block on the surface at the strip-shaped hole both ends, forms convex with the rivet hole cooperation in brake shell
Key 5.
In the present embodiment, the length of the strip-shaped hole is 8.5mm, width 5.5mm, the radius at both ends are 2.75mm；
The width of the key is 6mm.The radius R of the extrados of each boss is 40mm.
The brake shell 3 is improved to obtain to the prior art.Match in the brake shell and the pressure-bearing cup
Upper surface at conjunction is plane, and the square groove of 20 × 6 × 3mm is machined on the rivet hole periphery of connection brake shell and pressure-bearing cup,
When the pressure-bearing cup 1, rivet 2 and brake shell 3 coordinate, 2 first half of rivet and 1 clearance fit of pressure-bearing cup, and and brake shell
3 secure fit of body.The key of pressure-bearing cup 1 coordinates with the slot of brake shell 3, makes the arc surface of pressure-bearing cup 1 and the plane of brake shell
Line contacts.
When work, the brake shell 3 is deformed with 1 junction stress of pressure-bearing cup and heat, and pressure-bearing cup 1 is along brake shell
3 junction circular arc movements, make brake disc plane remain vertical with pressure, rivet 2 is constantly in force-free state.
Embodiment two
The present embodiment is to use Mr. Yu's type machine brake gear, including pressure-bearing cup 1, rivet 2, brake shell 3.
The pressure-bearing cup 1 is improved to obtain to the prior art.The pressure-bearing cup 1 is revolving body, and center is opened
There is strip-shaped hole, and the geometric center of the strip-shaped hole is made to be overlapped with the center of circle of pressure-bearing cup；The end face of the strip-shaped hole is arc surface.
There are axially projecting boss 4, the outer surface of each boss equal respectively on the pressure-bearing bottom of a cup surface of the strip-shaped hole length direction both sides
For plane, after the pressure-bearing cup and brake shell cooperation, plane and the brake shell curved surfaces of the boss side surface are formed
Line contacts.There is axially projecting convex block on the surface at the strip-shaped hole both ends, forms and the rivet hole cooperation in brake shell
Convex key 5.
In the present embodiment, the length of the strip-shaped hole is 10mm, width 6mm, the radius at both ends are 3.75mm；It is described
The width of key is 6.5mm.
The brake shell 3 is improved to obtain to the prior art.Match in the brake shell and the pressure-bearing cup
Upper surface at conjunction is cambered surface, and the radius r of the cambered surface is 80mm；It is processed in connection brake shell and the rivet hole periphery of pressure-bearing cup
The square groove for having 21 × 7 × 5mm, when the pressure-bearing cup 1, rivet 2 and brake shell 3 coordinate, between the rivet first half and pressure-bearing cup
Gap coordinate, and with 3 secure fit of brake shell.Square groove cooperation in convex key and brake shell on pressure-bearing cup, and make pressure-bearing cup
Plane and 3 circular arc brought into linear contact of brake shell.
When work, the brake shell 3 is deformed with 1 junction stress of pressure-bearing cup and heat, and pressure-bearing cup 1 is along brake shell
3 junction circular arc movements, make brake disc plane remain vertical with pressure, rivet 2 is constantly in force-free state.
Embodiment three
The present embodiment is to use Mr. Yu's type machine brake gear, including pressure-bearing cup 1, rivet 2, brake shell 3.
The pressure-bearing cup 1 is improved to obtain to the prior art.The pressure-bearing cup is revolving body, and center is provided with item
Shape hole, and the geometric center of the strip-shaped hole is made to be overlapped with the center of circle of pressure-bearing cup；The end face of the strip-shaped hole is arc surface.At this
There is axially projecting boss 4 on the pressure-bearing bottom of a cup surface of shape hole length direction both sides respectively, the outer surface of each boss is arc
Face, after the pressure-bearing cup and brake shell cooperation, the cambered surface and brake shell curved surfaces of the boss side surface form line and connect
It touches.The pressure-bearing cup bottom surface there are two axially projecting convex key 5, and the convex key is distributed in the two of the strip-shaped hole
End；The convex key is used to coordinate with the rivet hole in brake shell.
In the present embodiment, the length of the strip-shaped hole is 6mm, width 4mm, the radius at both ends are 3mm；The key
Width is 4.5mm.The radius R of the extrados of each boss is 40mm.
The brake shell 3 is improved to obtain to the prior art.Match in the brake shell and the pressure-bearing cup
Upper surface at conjunction is cambered surface, and the radius r of the cambered surface is 100mm；Add in connection brake shell and the rivet hole periphery of pressure-bearing cup
Work has the square groove of 16 × 8 × 2mm, when the pressure-bearing cup 1, rivet 2 and brake shell 3 coordinate, the rivet first half and pressure-bearing cup
Clearance fit, and with 3 secure fit of brake shell.Square groove cooperation in convex key and brake shell on pressure-bearing cup, and make pressure-bearing
The arc surface of cup and 3 circular arc brought into linear contact of brake shell.
When work, the brake shell 3 is deformed with 1 junction stress of pressure-bearing cup and heat, and pressure-bearing cup 1 is along brake shell
3 junction circular arc movements, make brake disc plane remain vertical with pressure, rivet 2 is constantly in force-free state.
Claims (5)
1. a kind of aircraft brake system including brake shell and pressure-bearing cup, which is characterized in that the center of the pressure-bearing cup is provided with
Strip-shaped hole, and the geometric center of the strip-shaped hole is made to be overlapped with the center of circle of pressure-bearing cup；The inner surface at both ends is circle in the strip-shaped hole
Cambered surface；The pressure-bearing cup bottom surface there are two axially projecting boss, and the boss is distributed in the bar shaped hole length
The both sides in direction, the outer surface and brake shell line contact of the boss after pressure-bearing cup and brake shell cooperation；Institute
Stating the bottom surface of pressure-bearing cup, there are two axially projecting convex keys, and the convex key is distributed in the both ends of the strip-shaped hole；The convex key
For coordinating with the rivet hole in brake shell；Connection brake shell and pressure-bearing cup rivet hole periphery be machined with it is described convex
The square groove of key cooperation.
2. including the aircraft brake system of brake shell and pressure-bearing cup as described in claim 1, which is characterized in that the pressure-bearing cup
The outer surface of boss of bottom surface be cambered surface or plane.
3. including the aircraft brake system of brake shell and pressure-bearing cup as described in claim 1, which is characterized in that when the pressure-bearing
When the outer surface of the boss on bottom of a cup surface is cambered surface, brake shell and the upper surface at the pressure-bearing cup cooperation are processed into
It is a plane or an arc surface；When the outer surface of the boss on pressure-bearing bottom of a cup surface is plane, brake shell is held with described
It is processed into cambered surface in upper surface at compression cup cooperation.
4. including the aircraft brake system of brake shell and pressure-bearing cup as described in claim 1, which is characterized in that the strip-shaped hole
Length be 6~8.5mm, width is 4~6mm, the radius at both ends is 2.75~3.75mm；The width of the key be 4.5~
6.5mm。
5. including the aircraft brake system of brake shell and pressure-bearing cup as described in claim 1, which is characterized in that the square groove
Appearance and size is 16~21mm × 6~8mm × 2~5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610893398.5A CN106394877B (en) | 2016-10-13 | 2016-10-13 | A kind of brake shell and pressure-bearing cup of aircraft brake system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610893398.5A CN106394877B (en) | 2016-10-13 | 2016-10-13 | A kind of brake shell and pressure-bearing cup of aircraft brake system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106394877A CN106394877A (en) | 2017-02-15 |
| CN106394877B true CN106394877B (en) | 2018-08-07 |
Family
ID=59229500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610893398.5A Active CN106394877B (en) | 2016-10-13 | 2016-10-13 | A kind of brake shell and pressure-bearing cup of aircraft brake system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106394877B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10236606A1 (en) * | 2002-08-09 | 2004-02-19 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Disk brake has at least one cage return projection for bearing cup fitting round turning lever and acting with roller bearing |
| CN2928679Y (en) * | 2006-04-04 | 2007-08-01 | 王淑敏 | Brake airplane wheel of Qianhong-7 airplane |
| 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 |
| CN203246585U (en) * | 2013-04-03 | 2013-10-23 | 北京北摩高科摩擦材料有限责任公司 | Brake casing of airplane wheel brake device in large transport airplane |
| CN203246586U (en) * | 2013-04-03 | 2013-10-23 | 北京北摩高科摩擦材料有限责任公司 | Cylinder base of airplane wheel brake device in large transport airplane |
| CN103388635A (en) * | 2012-05-10 | 2013-11-13 | 梅西耶-布加蒂-道提公司 | A brake for an aircraft wheel |
| CN204250366U (en) * | 2014-10-11 | 2015-04-08 | 中国航空工业集团公司西安飞机设计研究所 | The connecting device of a kind of undercarriage and brake gear |
| CN204415719U (en) * | 2015-02-05 | 2015-06-24 | 北京北摩高科摩擦材料有限责任公司 | A kind of brake shell assembly of airplane wheel brake device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10040543B2 (en) * | 2010-03-12 | 2018-08-07 | Goodrich Corporation | Tapered brake disk |
-
2016
- 2016-10-13 CN CN201610893398.5A patent/CN106394877B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10236606A1 (en) * | 2002-08-09 | 2004-02-19 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Disk brake has at least one cage return projection for bearing cup fitting round turning lever and acting with roller bearing |
| CN2928679Y (en) * | 2006-04-04 | 2007-08-01 | 王淑敏 | Brake airplane wheel of Qianhong-7 airplane |
| 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 |
| CN103388635A (en) * | 2012-05-10 | 2013-11-13 | 梅西耶-布加蒂-道提公司 | A brake for an aircraft wheel |
| CN203246585U (en) * | 2013-04-03 | 2013-10-23 | 北京北摩高科摩擦材料有限责任公司 | Brake casing of airplane wheel brake device in large transport airplane |
| CN203246586U (en) * | 2013-04-03 | 2013-10-23 | 北京北摩高科摩擦材料有限责任公司 | Cylinder base of airplane wheel brake device in large transport airplane |
| CN204250366U (en) * | 2014-10-11 | 2015-04-08 | 中国航空工业集团公司西安飞机设计研究所 | The connecting device of a kind of undercarriage and brake gear |
| CN204415719U (en) * | 2015-02-05 | 2015-06-24 | 北京北摩高科摩擦材料有限责任公司 | A kind of brake shell assembly of airplane wheel brake device |
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| Publication number | Publication date |
|---|---|
| CN106394877A (en) | 2017-02-15 |
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