CN106394877A - Brake housing and pressure-bearing cup of aircraft brake device - Google Patents
Brake housing and pressure-bearing cup of aircraft brake device Download PDFInfo
- Publication number
- CN106394877A CN106394877A CN201610893398.5A CN201610893398A CN106394877A CN 106394877 A CN106394877 A CN 106394877A CN 201610893398 A CN201610893398 A CN 201610893398A CN 106394877 A CN106394877 A CN 106394877A
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- CN
- China
- Prior art keywords
- pressure
- bearing cup
- brake
- brake shell
- boss
- 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)
- Mounting Of Bearings Or Others (AREA)
- Braking Arrangements (AREA)
Abstract
The invention relates to a brake housing and a pressure-bearing cup of an aircraft brake device. A strip-shaped hole is formed in the center of the pressure-bearing cup; the geometric center of the strip-shaped hole coincides with the centre of the pressure-bearing cup; two axially protruding bosses are arranged on the bottom surface of the pressure-bearing cup and are distributed on two sides of the strip-shaped hole in the length direction; after the pressure-bearing cup and the brake housing are matched, the outer side surfaces of the bosses are in line contact with the surface of the brake housing; two protruding keys, which protrude axially, are arranged on the bottom surface of the pressure-bearing cup and distributed at two ends of the strip-shaped hole; the protruding keys are used for being matched with a rivet hole in the brake housing; and a square groove matched with the protruding keys is processed in the periphery of the rivet hole used for connecting the brake housing with the pressure-bearing cup. According to the brake housing and the pressure-bearing cup provided by the invention, the contacted surfaces of the brake housing and the pressure-bearing cup are in arc-surface line contact, so that the pressure-bearing cup and a stepped rivet do not bear a shear force, and the reliability between the brake housing and the pressure-bearing cup is improved.
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 of housing and pressure-bearing cup and both connected modes.
Technical background
Aircraft brake system generally adopts tray type structure.Mainly by cylinder holder assembly, brake shell, bearing disc, Moving plate group
Part, quiet disk, compression plate and pressure-bearing cup etc. form.The big end of pressure-bearing cup embeds in the hole, pressure-bearing cup small end and the brake shell on bearing disc
Body rivet interlacement is together.
The operation principle of aircraft brake system：Hydraulic oil enters cylinder seat plunger shaft, and piston is under pressure to reach
Dynamic, compress brake disc, shutdown wheel of stopping.Brake pressure passes to brake disc, pressure-bearing cup successively by piston and stops in the process
Car housing, brake disc and brake shell all can produce certain deformation in the presence of brake pressure, brake disc and stopping under room temperature
The deflection of car housing is substantially suitable, and pressure-bearing cup and rivet are primarily subjected to the positive pressure that brake pressure passes over.But brake
Process brake disc friction can produce amount of heat, and brake rear brake hull temperature often reaches more than 900 DEG C, brake disc and brake shell
, at high temperature due to the thermal expansion factor difference of material, the thermal deformation difference of generation is larger for body, and now pressure-bearing cup is not with brake shell
Positive pressure only to be subject to, still suffers from larger shearing force.
In prior art, pressure-bearing cup and brake shell are generally plane and embed brake shell with plane contact or pressure-bearing cup
On corresponding in the hole mounting means, with rivet interlacement together.Due to high temperature impact, brake disc and brake shell after brake
Deflection difference larger, lead to pressure-bearing cup or rivet to bear larger shearing force, lead to pressure-bearing cup or rivet fracture, impact fly
Machine uses safety.
Content of the invention
For overcoming potential safety hazard present in prior art, the present invention proposes a kind of brake shell of aircraft brake system
With pressure-bearing cup.
In the present invention, the center of described pressure-bearing cup has bar hole, and makes geometric center and the pressure-bearing cup of this bar hole
The center of circle overlaps；The inner surface at described bar shaped in the hole two ends is arc surface；The basal surface of described pressure-bearing cup have two axially projecting
Boss, and this boss is distributed in the both sides of described bar hole length direction, and after pressure-bearing cup is coordinated with brake shell, this is convex
The outer surface of platform and brake shell line contact；There are two axially projecting convex keys in the basal surface of described pressure-bearing cup, and
And this convex key is distributed in the two ends of described bar hole；This convex key is used for and the rivet hole cooperation in brake shell.Connecting brake
Housing is machined with, with the rivet hole periphery of pressure-bearing cup, the square groove coordinating with described convex key.
The outer surface of the boss of basal surface of described pressure-bearing cup is cambered surface or plane.
When the outer surface of the boss of described pressure-bearing cup basal surface is cambered surface, brake shell is joined with described pressure-bearing cup
Upper surface at conjunction is processed into plane or cambered surface；When the outer surface of the boss of described pressure-bearing cup basal surface is plane,
Brake shell is processed into cambered surface with the upper surface at described pressure-bearing cup cooperation.
When the outer surface of described boss is cambered surface, after pressure-bearing cup is coordinated with brake shell, this boss side surface
Cambered surface forms linear contact lay with the plane on brake shell surface；When the outer surface of described boss is plane, pressure-bearing cup with stop
After the cooperation of car housing, the plane of this boss side surface forms linear contact lay with brake shell curved surfaces；Outside when described boss
When surface is cambered surface, after the cooperation of pressure-bearing cup and brake shell, the cambered surface of this boss side surface and brake shell curved surfaces shape
Become linear contact lay.
The length of described bar hole is 6～8.5mm, and width is 4～6mm, the radius at two ends is 2.75～3.75mm；Institute
The width stating key is 4.5～6.5mm.
The overall dimensions of described square groove are 16～21mm × 6～8mm × 2～5mm.
The present invention proposes a kind of brake shell, pressure-bearing cup attachment structure and connected mode, is stopped with solving conventional brake device
The problem of pressure-bearing cup or rivet fracture after car thermal deformation.
In the present invention, described brake shell is cambered surface linear contact lay with pressure-bearing cup contact surface, including brake shell cambered surface, holds
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.
Described 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 rivet small end, and big end is enclosed within pressure-bearing cup kidney-shaped in the hole.
Attachment structure proposed by the invention comprises following characteristics：
Pressure-bearing cup is not subject to shearing force.Brake rear brake hull temperature typically more than 900 DEG C, 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 to brake for brake disc and brake shell
The thermal deformation at the big end of housing, is cambered surface linear contact lay between described brake shell and described 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.Described pressure-bearing cup is connected by the waist-shaped hole on pressure-bearing cup with described step rivet
Together, step rivet only plays definitely restriction effect to the play in pressure-bearing cup edge aperture direction, not fastening function.Brake
Rivet and the relative position of pressure-bearing cup change with the deformation of brake shell afterwards, but pressure-bearing cup passes through waist type with step rivet
Hole connects, and will not produce shearing between rivet and pressure-bearing cup.
Brief description
Fig. 1 is the cooperation schematic diagram of pressure-bearing cup and brake shell in prior art；Wherein, 1a is that plane is joined with plane contact
The schematic diagram closing, 1b is the schematic diagram of embedded cooperation.
Fig. 2 is the structural representation 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 representation 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 representation of the pressure-bearing cup of plane；Wherein, 4a is front view, and 4b is side view, and 4c is top view.
Fig. 5 is the structural representation 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 with the brake shell of plane for the pressure-bearing cup of arc surface.
Fig. 7 is the cooperation schematic diagram with the brake shell of arc surface for the pressure-bearing cup of plane.
Fig. 8 is the cooperation schematic diagram with the brake shell of arc surface for the pressure-bearing cup of arc surface.
In figure：1. pressure-bearing cup；2. rivet；3. brake shell；4. boss；5 convex keys.
Specific embodiment
Embodiment one
The present embodiment is for certain type machine brake gear, including pressure-bearing cup 1, rivet 2 and brake shell 3.
Described pressure-bearing cup 1 improves to prior art and obtains.Described pressure-bearing cup is revolving body, and center has bar
Shape hole, and so that the geometric center of this bar hole is overlapped with the center of circle of pressure-bearing cup；The end face of described bar hole is arc surface.At this
There is axially projecting boss 4 respectively, the outer surface of each boss is arc on the pressure-bearing cup basal surface of shape hole length direction both sides
Face, after described pressure-bearing cup is coordinated with brake shell, the cambered surface of this boss side surface forms line with the plane on brake shell surface
Contact.There is axially projecting projection on the surface at described bar hole two ends, defines convex with the rivet hole cooperation in brake shell
Key 5.
In the present embodiment, the length of described bar hole is 8.5mm, width is 5.5mm, the radius at two ends is 2.75mm；
The width of described key is 6mm.The radius R of the extrados of each boss is 40mm.
Described brake shell 3 improves to prior art and obtains.Join with described pressure-bearing cup in this brake shell
Upper surface at conjunction is plane, is machined with the square groove of 20 × 6 × 3mm in the rivet hole periphery connecting brake shell and pressure-bearing cup,
When described pressure-bearing cup 1, rivet 2 and brake shell 3 coordinate, rivet 2 first half is coordinated with pressure-bearing cup 1 gap, and and brake shell
Body 3 secure fit.The key of pressure-bearing cup 1 and the groove cooperation of brake shell 3, make the arc surface of pressure-bearing cup 1 and the plane of brake shell
Linear contact lay.
During work, described brake shell 3 is deformed with pressure-bearing cup 1 junction stress and heat, and pressure-bearing cup 1 is along brake shell
3 junction circular arcs move, and make brake disc plane remain vertical with pressure, rivet 2 is constantly in force-free state.
Embodiment two
The present embodiment is for certain type machine brake gear, including pressure-bearing cup 1, rivet 2, brake shell 3.
Described pressure-bearing cup 1 improves to prior art and obtains.Described pressure-bearing cup 1 is revolving body, and center is opened
There is bar hole, and so that the geometric center of this bar hole is overlapped with the center of circle of pressure-bearing cup；The end face of described bar hole is arc surface.?
There is axially projecting boss 4 respectively, the outer surface of each boss is equal on the pressure-bearing cup basal surface of this bar hole length direction both sides
For plane, after described pressure-bearing cup is coordinated with brake shell, the plane of this boss side surface is formed with brake shell curved surfaces
Linear contact lay.There is axially projecting projection on the surface at described bar hole two ends, defines and the rivet hole cooperation in brake shell
Convex key 5.
In the present embodiment, the length of described bar hole is 10mm, width is 6mm, the radius at two ends is 3.75mm；Described
The width of key is 6.5mm.
Described brake shell 3 improves to prior art and obtains.Join with described pressure-bearing cup in this brake shell
Upper surface at conjunction is cambered surface, and the radius r of this cambered surface is 80mm；In the rivet hole periphery processing connecting brake shell and pressure-bearing cup
There is the square groove of 21 × 7 × 5mm, when described pressure-bearing cup 1, rivet 2 and brake shell 3 coordinate, between the rivet first half and pressure-bearing cup
Gap coordinate, and with brake shell 3 secure fit.Convex key on pressure-bearing cup is coordinated with the square groove in brake shell, and makes pressure-bearing cup
Plane and brake shell 3 circular arc brought into linear contact.
During work, described brake shell 3 is deformed with pressure-bearing cup 1 junction stress and heat, and pressure-bearing cup 1 is along brake shell
3 junction circular arcs move, and make brake disc plane remain vertical with pressure, rivet 2 is constantly in force-free state.
Embodiment three
The present embodiment is for certain type machine brake gear, including pressure-bearing cup 1, rivet 2, brake shell 3.
Described pressure-bearing cup 1 improves to prior art and obtains.Described pressure-bearing cup is revolving body, and center has bar
Shape hole, and so that the geometric center of this bar hole is overlapped with the center of circle of pressure-bearing cup；The end face of described bar hole is arc surface.At this
There is axially projecting boss 4 respectively, the outer surface of each boss is arc on the pressure-bearing cup basal surface of shape hole length direction both sides
Face, after described pressure-bearing cup is coordinated with brake shell, the cambered surface of this boss side surface and brake shell curved surfaces form line and connect
Touch.There are two axially projecting convex keys 5 in the basal surface of described pressure-bearing cup, and this convex key is distributed in the two of described bar hole
End；This convex key is used for and the rivet hole cooperation in brake shell.
In the present embodiment, the length of described bar hole is 6mm, width is 4mm, the radius at two ends is 3mm；Described key
Width is 4.5mm.The radius R of the extrados of each boss is 40mm.
Described brake shell 3 improves to prior art and obtains.Join with described pressure-bearing cup in this brake shell
Upper surface at conjunction is cambered surface, and the radius r of this cambered surface is 100mm；Add with the rivet hole periphery of pressure-bearing cup connecting brake shell
Work has the square groove of 16 × 8 × 2mm, when described pressure-bearing cup 1, rivet 2 and brake shell 3 coordinate, the rivet first half and pressure-bearing cup
Gap coordinate, and with brake shell 3 secure fit.Convex key on pressure-bearing cup is coordinated with the square groove in brake shell, and makes pressure-bearing
The arc surface of cup and brake shell 3 circular arc brought into linear contact.
During work, described brake shell 3 is deformed with pressure-bearing cup 1 junction stress and heat, and pressure-bearing cup 1 is along brake shell
3 junction circular arcs move, and make brake disc plane remain vertical with pressure, rivet 2 is constantly in force-free state.
Claims (6)
1. a kind of brake shell of aircraft brake system and pressure-bearing cup are it is characterised in that the center of described pressure-bearing cup has bar shaped
Hole, and so that the geometric center of this bar hole is overlapped with the center of circle of pressure-bearing cup；The inner surface at described bar shaped in the hole two ends is arc surface；
There are two axially projecting boss in the basal surface of described pressure-bearing cup, and this boss is distributed in described bar hole length direction
Both sides, the outer surface of this boss and brake shell line contact after pressure-bearing cup is coordinated with brake shell；In described pressure-bearing
The basal surface of cup has two axially projecting convex keys, and this convex key is distributed in the two ends of described bar hole；This convex key be used for
Rivet hole cooperation in brake shell；It is machined with and described convex key cooperation connecting the rivet hole periphery that brake shell is with pressure-bearing cup
Square groove.
2. the brake shell of aircraft brake system as claimed in claim 1 and pressure-bearing cup are it is characterised in that the bottom of described pressure-bearing cup
The outer surface of the boss on surface is cambered surface or plane.
3. the brake shell of aircraft brake system as claimed in claim 1 and pressure-bearing cup are it is characterised in that work as described pressure-bearing cup bottom
When the outer surface of the boss on surface is cambered surface, the upper surface at brake shell and described pressure-bearing cup cooperation is processed into flat
Face or cambered surface；When the outer surface of the boss of described pressure-bearing cup basal surface is plane, by brake shell and described pressure-bearing cup
Upper surface at cooperation is processed into cambered surface.
4. as described in claim 2 and 3 brake shell of aircraft brake system and pressure-bearing cup it is characterised in that working as described boss
Outer surface when being cambered surface, after pressure-bearing cup and brake shell cooperation, the cambered surface of this boss side surface and brake shell surface
Plane formed linear contact lay；When the outer surface of described boss is plane, after pressure-bearing cup is coordinated with brake shell, this boss
The plane of side surface forms linear contact lay with brake shell curved surfaces；When the outer surface of described boss is cambered surface, pressure-bearing
After cup is coordinated with brake shell, the cambered surface of this boss side surface forms linear contact lay with brake shell curved surfaces.
5. the brake shell of aircraft brake system as claimed in claim 1 and pressure-bearing cup are it is characterised in that the length of described bar hole
Spend for 6～8.5mm, width is 4～6mm, the radius at two ends is 2.75～3.75mm；The width of described key be 4.5～
6.5mm.
6. the brake shell of aircraft brake system as claimed in claim 1 and pressure-bearing cup are it is characterised in that the profile of described square groove
A size of 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 true CN106394877A (en) | 2017-02-15 |
| CN106394877B 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 (9)
| 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 |
| US20110220763A1 (en) * | 2010-03-12 | 2011-09-15 | Goodrich Corporation | Tapered brake disk |
| 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 |
-
2016
- 2016-10-13 CN CN201610893398.5A patent/CN106394877B/en active Active
Patent Citations (9)
| 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 |
| US20110220763A1 (en) * | 2010-03-12 | 2011-09-15 | Goodrich Corporation | Tapered brake disk |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106394877B (en) | 2018-08-07 |
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