CN106644431A - Aircraft landing gear fatigue test fixing clamp - Google Patents
Aircraft landing gear fatigue test fixing clamp Download PDFInfo
- Publication number
- CN106644431A CN106644431A CN201611080664.9A CN201611080664A CN106644431A CN 106644431 A CN106644431 A CN 106644431A CN 201611080664 A CN201611080664 A CN 201611080664A CN 106644431 A CN106644431 A CN 106644431A
- Authority
- CN
- China
- Prior art keywords
- bearing
- girder
- auxiliary beam
- fatigue test
- auxiliary
- 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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
- Y02T50/40—Weight reduction
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention provides an aircraft landing gear fatigue test fixing clamp comprising a frame, an outer support seat, a strut support seat, fasteners and an inner support seat, and the outer support seat, the strut support seat, and the inner support seat are fixed on the frame through the fasteners. the frame includes a main beam, a bearing beam, and an auxiliary beam, the main beam and the bearing beam are in a T type, the main beam and the auxiliary beam are in a T type, the main beam is connected with the bearing beam by a strengthening beam I, the main beam is connected with the auxiliary beam by a strengthening beam II, and the auxiliary beam is connected with the bearing beam by a strengthening beam III. The outer and inner support seats are fixed to the main beam and the strut support is fixed to the auxiliary beam. The aircraft landing gear fatigue test fixing clamp is ingenious in design, simple in structure, sufficient in strength and rigidity, and guarantees the normal running of the aircraft landing gear fatigue test.
Description
Technical field
The invention belongs to aircraft fatigue experimental technique field, and in particular to a kind of undercarriage fatigue test geometrical clamp
Tool.
Background technology
The purpose of undercarriage fatigue test is：The anti-fatigue performance of checking landing gear structure, exposes its structural fatigue
Weak part, determines that undercarriage service life, head are turned over the phase and overhauls interval, is to determine the important ring of aircraft safety service life
Section.Aircraft undercarriage fatigue test needs the ratio of imposed load larger, and needs to carry out prolonged fatigue test, and
Undercarriage usually individually makees fatigue test, it is therefore desirable to design a set of frock clamp to support and fixed landing gear, with
Keep undercarriage normal attitude at the trial and really simulate the stressing conditions of undercarriage junction as far as possible, while also
Must assure that geometrical clamp has enough strength and stiffness.
The content of the invention
The present invention is solution above-mentioned technical problem, there is provided a kind of undercarriage fatigue test stationary fixture, to keep winged
Machine undercarriage normal attitude at the trial and the stressing conditions of undercarriage junction are really simulated as far as possible.
In order to solve the technical problem of the present invention, the present invention is achieved by the following technical solutions：A kind of aircraft takeoffs and landings
Frame fatigue test stationary fixture, including framework 1, outside bearing 2, strut bearing 3, securing member 4 and inner side bearing 5, the outside
Bearing 2, strut bearing 3 and inner side bearing 5 are fixed on the framework 1 by securing member 4；The framework 1 include girder 108,
Bearing beam 102, auxiliary beam 105, buttress brace I 109, buttress brace II 107 and buttress brace III 104, the girder 108 and bearing beam 102
In T-shape, the girder 108 is in T-shape with auxiliary beam 105, and the girder 108 is connected by buttress brace I 109 with bearing beam 102,
The girder 108 is connected by buttress brace II 107 with auxiliary beam 105, and the auxiliary beam 105 is by buttress brace III 104 and bearing beam 102
It is connected；The outside bearing 2 and inner side bearing 5 are fixed on the girder 108, and the strut bearing 3 is fixed on the auxiliary beam
On 105.
Preferably, the girder 108 and bearing beam 102 are made using 25# channel-section steels, and auxiliary beam 105 is made using 18# channel-section steels,
The girder 108, bearing beam 102 and auxiliary beam 105 are staging pack structure, largely reduce inner side bearing 5 and outside
The size of bearing 2, has saved substantial amounts of raw material and process-cycle.
Preferably, the girder 108, the upper surface of bearing beam 102 welding top panel I 101, the upper surface of auxiliary beam 105 weldering
Panel II 106 is connected, the girder 108, bearing beam 102 and the lower surface of auxiliary beam 105 weld lower panel 103, i.e. girder 108 and hold
The upper surface of power beam 102 is approximately the same plane, and the upper surface of auxiliary beam 105 is another plane, the girder 108, bearing beam 102
It is approximately the same plane with the lower surface of auxiliary beam 105, strengthens girder 108, auxiliary beam 105, the intensity of the stitching portion of bearing beam 102, it is ensured that
The flatness of outside bearing 2, strut bearing 3 and the mounting surface of inner side bearing 5 and the installation appearance with utmost guarantee undercarriage
State.
Preferably, the strut bearing 3 is respectively arranged on the left side and the right side channel-section steel I 111, channel-section steel II 112, the channel-section steel I 111 1
End is fixed on the auxiliary beam 105, and the other end is fixed on buttress brace III 104；The one end of the channel-section steel II 112 is fixed on described auxiliary
On beam 105, the other end is fixed on buttress brace II 107, strengthens the strength and stiffness at strut bearing 3, strengthens the strong of auxiliary beam 105
Degree and and rigidity.
Preferably, there is certain difference in height between the auxiliary beam 105 and girder 108, its junction is provided with cushion block 110, with
Strengthen junction intensity.
Preferably, install on the girder 108 at outside bearing 2 and inner side bearing 5 and be respectively equipped with the first steel plate 113, institute
State the first steel plate 113 to weld together top panel I 101 and lower panel 103；Install on the auxiliary beam 105 and set at strut bearing 3
There is the second steel plate 114, second steel plate 114 welds together top panel II 106 and lower panel 103, strengthen outside bearing
2nd, the bending resistance of strut bearing 3 and the bearing bearing channel-section steel edge strip of inner side bearing 5.
Preferably, the girder 108 and the stitching portion of auxiliary beam 105 are provided with the first splicing steel plate 115, the girder 108 and hold
The stitching portion of power beam 102 is provided with the second splicing steel plate 116, strengthens girder 108, bearing beam 102, the intensity of the stitching portion of auxiliary beam 105.
Compared with prior art, the beneficial effect of present invention acquisition is：
The present invention a kind of undercarriage fatigue test stationary fixture is disclosed, be skillfully constructed, simple structure, with enough intensity
And rigidity, it is ensured that undercarriage fatigue test is normally carried out.The present invention discloses a kind of undercarriage fatigue test and consolidates
Clamp has, and girder, bearing beam and auxiliary beam adopt staging pack structure, largely reduces inner side bearing and outside bearing
Size, has saved substantial amounts of raw material and process-cycle；Above and below is respectively welded in girder, bearing beam and auxiliary beam upper and lower surface
Plate, strengthens the intensity of framework stitching portion, it is ensured that the flatness of three abutments mounting surface and the peace with utmost guarantee undercarriage
Dress attitude；The strut bearing left and right sides is provided with channel-section steel, strengthens the strength and stiffness of strut bearing, strengthens the intensity and and just of auxiliary beam
Degree；On girder and auxiliary beam at erection support, increase steel plate and weld together upper and lower panel, strengthen bearing bearing channel-section steel edge strip
Bending resistance；Girder, auxiliary beam stitching portion and girder, bearing beam stitching portion, increase welding steel plate on channel-section steel web, strengthen channel-section steel
The intensity of stitching portion.
Description of the drawings
Fig. 1 is schematic structural view of the invention.
Fig. 2 is block schematic illustration.
Fig. 3 is that framework channel-section steel welds schematic diagram.
Fig. 4 is use state figure of the present invention.
Reference：1st, framework；101st, top panel I；102nd, bearing beam；103rd, lower panel；104th, buttress brace III；105th, it is auxiliary
Beam；106th, top panel II；107th, buttress brace II；108th, girder；109th, buttress brace I；110th, cushion block；111st, channel-section steel I；112nd, channel-section steel
Ⅱ；113rd, the first steel plate；114th, the second steel plate；115th, the first splicing steel plate；116th, the second splicing steel plate；2nd, outside bearing；3、
Strut bearing；4th, securing member；5th, inner side bearing；6th, undercarriage；61st, undercarriage rotating shaft；62nd, undercarriage strut.
Specific embodiment
Below in conjunction with the accompanying drawings, embodiment is described in detail.
Referring to accompanying drawing 1 and accompanying drawing 2, a kind of undercarriage fatigue test stationary fixture, including framework 1, outside bearing 2,
Strut bearing 3, securing member 4 and inner side bearing 5, the outside bearing 2, strut bearing 3 and inner side bearing 5 are solid by securing member 4
It is scheduled on the framework 1；The framework 1 includes girder 108, bearing beam 102, auxiliary beam 105, buttress brace I 109, buttress brace II 107
With buttress brace III 104, the girder 108 is in T-shape with bearing beam 102, and the girder 108 is in T-shape with auxiliary beam 105, described
Girder 108 is connected by buttress brace I 109 with bearing beam 102, and the girder 108 is connected by buttress brace II 107 with auxiliary beam 105,
The auxiliary beam 105 is connected by buttress brace III 104 with bearing beam 102；The outside bearing 2 and inner side bearing 5 are fixed on described
On girder 108, the strut bearing 3 is fixed on the auxiliary beam 105.
Further, the girder 108 and bearing beam 102 are made using 25# channel-section steels, and auxiliary beam 105 adopts 18# channel-section steel systems
Make, the girder 108, bearing beam 102 and auxiliary beam 105 are staging pack structure, largely reduce inner side bearing 5 and outer
The size of collateral seat 2, has saved substantial amounts of raw material and process-cycle.
Further, the girder 108, the upper surface of bearing beam 102 welding top panel I 101, the upper surface of auxiliary beam 105
Welding top panel II 106, the girder 108, bearing beam 102 and the lower surface of auxiliary beam 105 welding lower panel 103, the i.e. He of girder 108
The upper surface of bearing beam 102 is approximately the same plane, and the upper surface of auxiliary beam 105 is another plane, the girder 108, bearing beam
102 and auxiliary beam 105 lower surface be approximately the same plane, strengthen girder 108, auxiliary beam 105, the intensity of the stitching portion of bearing beam 102, really
Protect the flatness of outside bearing 2, strut bearing 3 and the mounting surface of inner side bearing 5 and the installation with utmost guarantee undercarriage
Attitude.
Further, the strut bearing 3 is respectively arranged on the left side and the right side channel-section steel I 111, channel-section steel II 112, the channel-section steel I 111
One end is fixed on the auxiliary beam 105, and the other end is fixed on buttress brace III 104；It is auxiliary that the one end of the channel-section steel II 112 is fixed on institute
On beam 105, the other end is fixed on buttress brace II 107, strengthens the strength and stiffness at strut bearing 3, strengthens the strong of auxiliary beam 105
Degree and and rigidity.
Further, there is certain difference in height between the auxiliary beam 105 and girder 108, its junction is provided with cushion block 110,
To strengthen junction intensity.
Further, install on the girder 108 at outside bearing 2 and inner side bearing 5 and be respectively equipped with the first steel plate 113,
First steel plate 113 welds together top panel I 101 and lower panel 103；Install at strut bearing 3 on the auxiliary beam 105
The second steel plate 114 is provided with, second steel plate 114 welds together top panel II 106 and lower panel 103, strengthens lateral branch
The bending resistance of seat 2, strut bearing 3 and the bearing bearing channel-section steel edge strip of inner side bearing 5.
Further, the girder 108 and the stitching portion of auxiliary beam 105 are provided with the first splicing steel plate 115, the He of the girder 108
The stitching portion of bearing beam 102 is provided with the second splicing steel plate 116, strengthens girder 108, bearing beam 102, the intensity of the stitching portion of auxiliary beam 105.
Undercarriage flip-chip fashion is taken in the fatigue test of undercarriage 6, first by outside bearing 2, strut bearing 3, medial branch
Seat 5 is fixed on framework 1 by securing member 4；Then in the oscillating bearing of the outer end of undercarriage rotating shaft 61 insertion outside bearing 2, rise
In the oscillating bearing of the inner insertion inner side bearing 5 of the frame rotating shaft 61 that falls, undercarriage strut 62 is connected with strut bearing 3；Finally will rise
The fatigue test stationary fixture of frame 6 that falls is fixed in load track by foundation bolt, you can proceed by the fatigue examination of undercarriage 6
Test.The outside bearing 2, strut bearing 3 and inner side bearing 5 are provided and constrained to protect with the locus of state consistency of truly installing
The Installation posture of card undercarriage 6 requires, three bearings corresponding link position of aircraft to the structural simulation of the junction of undercarriage 6
Structure, it is ensured that the power transmission form consistent with real aircraft.
The present invention a kind of fatigue test stationary fixture of undercarriage 6 is disclosed, be skillfully constructed, simple structure, with enough
Strength and stiffness, it is ensured that undercarriage 6 fatigue test is normally carried out.
Listed above is only one of specific embodiment of the present invention.It is clear that the invention is not restricted to above example, may be used also
To there is many similar reshapings.One of ordinary skill in the art can directly derive from present disclosure or associate
All deformations, are considered as invention which is intended to be protected.
Claims (7)
1. a kind of undercarriage fatigue test stationary fixture, including framework（1）, outside bearing（2）, strut bearing（3）, fastening
Part（4）With inner side bearing（5）, the outside bearing（2）, strut bearing（3）With inner side bearing（5）By securing member（4）It is fixed
In the framework（1）On, it is characterised in that：The framework（1）Including girder（108）, bearing beam（102）, auxiliary beam（105）, plus
Brutal I（109）, buttress brace II（107）With buttress brace III（104）, the girder（108）With bearing beam（102）In T-shape, institute
State girder（108）With auxiliary beam（105）In T-shape, the girder（108）By buttress brace I（109）With bearing beam（102）It is connected,
The girder（108）By buttress brace II（107）With auxiliary beam（105）It is connected, the auxiliary beam（105）By buttress brace III（104）
With bearing beam（102）It is connected；The outside bearing（2）With inner side bearing（5）It is fixed on the girder（108）On, the strut
Bearing（3）It is fixed on the auxiliary beam（105）On.
2. a kind of undercarriage fatigue test stationary fixture as claimed in claim 1, it is characterised in that：The girder
（108）And bearing beam（102）Made using 25# channel-section steels, auxiliary beam（105）Made using 18# channel-section steels, the girder（108）, load
Beam（102）With auxiliary beam（105）For staging pack structure.
3. a kind of undercarriage fatigue test stationary fixture as claimed in claim 1, it is characterised in that：The girder
（108）, bearing beam（102）Weld top panel I in upper surface（101）, the auxiliary beam（105）Weld top panel II in upper surface（106）,
The girder（108）, bearing beam（102）With auxiliary beam（105）Lower surface welds lower panel（104）.
4. a kind of undercarriage fatigue test stationary fixture as claimed in claim 1, it is characterised in that：The strut bearing
（3）It is respectively arranged on the left side and the right side channel-section steel I（111）, channel-section steel II（112）, the channel-section steel I（111）One end is fixed on the auxiliary beam
（105）On, the other end is fixed on buttress brace III（104）On；The channel-section steel II（112）One end is fixed on the auxiliary beam（105）On,
The other end is fixed on buttress brace II（107）On.
5. a kind of undercarriage fatigue test stationary fixture as claimed in claim 1, it is characterised in that：The auxiliary beam
（105）With girder（108）Junction is provided with cushion block（110）.
6. a kind of undercarriage fatigue test stationary fixture as claimed in claim 1, it is characterised in that：The girder
（108）Bearing on the outside of upper installation（2）With inner side bearing（5）Place is respectively equipped with the first steel plate（113）, first steel plate（113）
By top panel I（101）And lower panel（103）Weld together；The auxiliary beam（105）Upper installation strut bearing（3）Place is provided with
Two steel plates（114）, second steel plate（114）By top panel II（106）And lower panel（103）Weld together.
7. a kind of undercarriage fatigue test stationary fixture as claimed in claim 1, it is characterised in that：The girder
（108）With auxiliary beam（105）Stitching portion is provided with the first splicing steel plate（115）, the girder（108）And bearing beam（102）Stitching portion
It is provided with the second splicing steel plate（116）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611080664.9A CN106644431B (en) | 2016-11-30 | 2016-11-30 | Fixing clamp for fatigue test of undercarriage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611080664.9A CN106644431B (en) | 2016-11-30 | 2016-11-30 | Fixing clamp for fatigue test of undercarriage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106644431A true CN106644431A (en) | 2017-05-10 |
| CN106644431B CN106644431B (en) | 2023-06-06 |
Family
ID=58813278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611080664.9A Active CN106644431B (en) | 2016-11-30 | 2016-11-30 | Fixing clamp for fatigue test of undercarriage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106644431B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107264835A (en) * | 2017-07-13 | 2017-10-20 | 江西洪都航空工业集团有限责任公司 | A kind of gear test load charger |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107264835A (en) * | 2017-07-13 | 2017-10-20 | 江西洪都航空工业集团有限责任公司 | A kind of gear test load charger |
| CN107264835B (en) * | 2017-07-13 | 2020-04-28 | 江西洪都航空工业集团有限责任公司 | Undercarriage test load loading device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106644431B (en) | 2023-06-06 |
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