CN207191483U - A kind of undercarriage analogue means available for full machine load test - Google Patents
A kind of undercarriage analogue means available for full machine load test Download PDFInfo
- Publication number
- CN207191483U CN207191483U CN201721090562.5U CN201721090562U CN207191483U CN 207191483 U CN207191483 U CN 207191483U CN 201721090562 U CN201721090562 U CN 201721090562U CN 207191483 U CN207191483 U CN 207191483U
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- outer barrel
- piston rod
- undercarriage
- load test
- full machine
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Abstract
A kind of undercarriage analogue means available for full machine load test is the utility model is related to, belongs to field of airplane structure, it includes：Outer barrel, the outer barrel top have that true landing gear structure is identic, installation portion for being connected with body, and outer barrel bottom is cylindrical shape, which is provided with uniform multiple outer barrel connecting holes；Piston rod, the piston rod are cylindrical shape and are assemblied in outer barrel lower lumen provided with the piston lever attachment hole being adapted with the connecting hole, piston rod, are connected by connector outer barrel with piston rod；Wheel shaft, the wheel shaft and piston rod integrally connected.It can avoid in test causing housing construction the situation of damage because undercarriage fails using the present apparatus, different strokes can be adjusted according to the connecting hole set on outer barrel and piston rod simultaneously, to adapt to requirement of the different loads situation to compression travel, it can replace true undercarriage in full machine load test, simulation load transmission, meet the loading requirement of experiment.
Description
Technical field
The utility model belongs to airplane design technical field, more particularly to a kind of undercarriage available for full machine load test
Analogue means.
Background technology
In aircraft overall structure, undercarriage is an important component of aircraft, and its load is essentially from ground
Effect to wheel.In full machine load test, a set of real undercarriage typically can be all installed, while examine undercarriage and machine
The bearing capacity of body, the two risk to fail in test can not separate to control, and make the risk of experiment larger.If undercarriage carries
Before lose bearing capacity, also have to housing construction and larger be likely to result in damage.For modified aircraft, often simply improvement machine
Body structure, undercarriage are not changed, need to be supported and balanced with undercarriage in the load test of housing construction, if
A set of new undercarriage is produced for this can produce larger experimentation cost, and the production cycle is also long.
Full machine load test requires that the device of simulation undercarriage will meet the installation requirement of aircraft, and has enough intensity
And rigidity, will not in test premature degradation.And the position that load applies is identical with real undercarriage, will also be according to examination
That tests is required to the compression travel of adjusting landing gear, avoids load(ing) point during stand under load under compression from producing movement.
Utility model content
The purpose of this utility model is exactly to solve problem above, there is provided a undercarriage analogue means, simulation dress
True undercarriage can be replaced in full machine load test by putting, and meet the loading requirement of different tests situation.
To reach above-mentioned purpose, the technical solution adopted in the utility model is：A kind of rising available for full machine load test
Fall frame analogue means, it includes
Outer barrel, the outer barrel top have that true landing gear structure is identic, installation portion for being connected with body,
Outer barrel bottom is cylindrical shape, which is provided with uniform multiple outer barrel connecting holes；
Piston rod, the piston rod are cylindrical shape and are provided with the piston lever attachment hole being adapted with the connecting hole, piston
Bar is assemblied in outer barrel lower lumen, is connected by connector outer barrel with piston rod；
Wheel shaft, the wheel shaft and piston rod integrally connected.
Further, the installation portion is I-shaped beam section, and its end is provided with manhole, by connector by outer barrel with
Body connects.
Further, outer barrel middle part is provided with auricle, is used to be attached with strut by connector.
Further, the outer barrel connecting hole is arranged along outer barrel axis direction.
Further, the outer barrel connecting hole arranged along outer barrel axis direction is two rows, and along outer barrel axisymmetrical.
The utility model can replace true undercarriage in full machine load test, simulation load transmission, meet experiment
Loading requires.It can avoid in test causing housing construction the situation of damage because undercarriage fails using the present apparatus,
Simultaneously according to the connecting hole set on outer barrel and piston rod, different strokes can be adjusted, to adapt to different loads situation to pressure
The requirement of indention journey.Simultaneously because being connected using connectors such as bolts, true undercarriage caused pressure in loading can be avoided
Indention journey changes.The truer undercarriage of present apparatus difficulty of processing is low, substantially reduces experimentation cost.
Brief description of the drawings
Accompanying drawing herein is merged in specification and forms the part of this specification, show meet it is of the present utility model
Embodiment, and for explaining principle of the present utility model together with specification.
Fig. 1 is the undercarriage analogue means general illustration of the embodiment of the utility model one；
Fig. 2 is the outer barrel schematic cross-sectional view of the embodiment of the utility model one；
Fig. 3 is the piston rod schematic cross-sectional view of the embodiment of the utility model one；
Reference：
1- outer barrels, 2- piston rods, 3- wheel shafts, 11- installation portions, 12- outer barrel connecting holes, 13- auricles, the connection of 21- piston rods
Hole.
Embodiment
To make the purpose, technical scheme and advantage that the utility model is implemented clearer, below in conjunction with the utility model
Accompanying drawing in embodiment, the technical scheme in the embodiment of the utility model is further described in more detail.
Undercarriage analogue means available for full machine load test as shown in Figure 1, it includes outer barrel 1, piston rod 2, wheel
A variety of bolts that axle 3 and undercarriage analogue means are connected with positions such as body, support bars.
According to the structure type of true undercarriage, top and the body junction of outer barrel 1 are I-shaped beam section, and I-beam is last
There is manhole at end, for installing and body connecting bolt.Also respectively there is a dowel hole (upper right corner in figure) in through hole outer wall,
For fixed and body connecting bolt.The main body of outer barrel 1 is cylinder type, has transition between the top I-beam and cylinder of outer barrel 1
Area.There is auricle 13 middle part of outer barrel 1, for being attached with support bar.The structure of above-mentioned outer barrel 1 is overall processing part.
As shown in Fig. 2 being provided with outer barrel connecting hole 12 along outer barrel axis on outer barrel 1, and it is multiple (i.e. outer barrel connections in Fig. 2
Hole 12a~12c), it is used for regulating piston bar compression travel.Preferably, will be along outer barrel in order to ensure bonding strength and stability
The outer barrel connecting hole 12 that axis is set is arranged to two rows, and two rows are along axisymmetrical.
As shown in figure 3, piston rod 2 is arranged to integral piece with wheel shaft 3, it is overall L-shaped.The main body section of piston rod 2 is circle
Cartridge type, it is assemblied in the inner chamber of outer barrel 1, according to the requirement to compression travel, if being provided with stem piston on the cylindrical wall of piston rod 1
Lever attachment hole 21, the arrangement of piston lever attachment hole 21 need to arrange to cooperation, i.e. piston lever attachment hole with the connecting hole in outer barrel 1
21 are also arranged into two rows, its arrangement of axis along piston rod 2.Connecting hole in piston rod 2 is used after being alignd with the connecting hole of outer barrel 1
It is bolted together, the alignment of different connecting holes will produce different compression travels.Wheel shaft 3 is according to the form of loading device
Be arranged to matched structure, end there is nut to be used for fixed loading is false takes turns.The above-mentioned structure of piston rod 2 is overall processing part.
In this example, by by the piston lever attachment hole 21a in the outer barrel connecting hole 12a in outer barrel 1 and piston rod 2,
Outer barrel connecting hole 12b compresses when being connected with piston lever attachment hole 21e, outer barrel connecting hole 12c and piston lever attachment hole 21f
A kind of distance (270mm) of stroke；By by the piston lever attachment hole 21b in the outer barrel connecting hole 12a in outer barrel 1 and piston rod 2,
Another distance of compression travel (324mm) when outer barrel connecting hole 12b and piston lever attachment hole 21g is connected with；By by outer barrel 1
In outer barrel connecting hole 12b and piston rod 2 in piston lever attachment hole 21c, outer barrel connecting hole 12c and piston lever attachment hole 21d
Compression travel is chapter 3 distance (72mm) when being connected with, by the different parts of above-mentioned connection outer barrel 1 and piston rod 2 from
And realize the function of regulation stroke.
The utility model can replace true undercarriage in full machine load test, simulation load transmission, meet experiment
Loading requires.It can avoid in test causing housing construction the situation of damage because undercarriage fails using the present apparatus,
Simultaneously according to the connecting hole set on outer barrel and piston rod, different strokes can be adjusted, to adapt to different loads situation to pressure
The requirement of indention journey.Simultaneously because being connected by screw bolts, true undercarriage caused compression travel in loading can be avoided to become
Change.The truer undercarriage of present apparatus difficulty of processing is low, substantially reduces experimentation cost.
It is described above, optimal embodiment only of the present utility model, but the scope of protection of the utility model is not
This is confined to, any one skilled in the art can readily occur in the technical scope that the utility model discloses
Change or replacement, should all cover within the scope of protection of the utility model.Therefore, the scope of protection of the utility model should be with
The scope of the claims is defined.
Claims (5)
- A kind of 1. undercarriage analogue means available for full machine load test, it is characterised in that includingOuter barrel (1), outer barrel (1) top have that true landing gear structure is identic, installation for being connected with body Portion (11), outer barrel (1) bottom is cylindrical shape, which is provided with uniform multiple outer barrel connecting holes (12)；Piston rod (2), the piston rod (2) are cylindrical shape and are provided with the piston lever attachment hole being adapted with the connecting hole (12) (21), piston rod (2) is assemblied in outer barrel (1) lower lumen, is connected by connector outer barrel (1) with piston rod (2)；Wheel shaft (3), the wheel shaft and piston rod (2) integrally connected.
- 2. the undercarriage analogue means according to claim 1 available for full machine load test, it is characterised in that the peace Dress portion (11) is I-shaped beam section, and its end is provided with manhole, is connected outer barrel with body by connector.
- 3. the undercarriage analogue means according to claim 1 available for full machine load test, it is characterised in that outer barrel (1) middle part is provided with auricle (13), is used to be attached with strut by connector.
- 4. the undercarriage analogue means according to claim 1 available for full machine load test, it is characterised in that described outer Cylinder connecting hole (12) is arranged along outer barrel axis direction.
- 5. the undercarriage analogue means according to claim 4 available for full machine load test, it is characterised in that along outer barrel The outer barrel connecting hole (12) of axis direction arrangement is two rows, and along outer barrel axisymmetrical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721090562.5U CN207191483U (en) | 2017-08-29 | 2017-08-29 | A kind of undercarriage analogue means available for full machine load test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721090562.5U CN207191483U (en) | 2017-08-29 | 2017-08-29 | A kind of undercarriage analogue means available for full machine load test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207191483U true CN207191483U (en) | 2018-04-06 |
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ID=61795833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721090562.5U Active CN207191483U (en) | 2017-08-29 | 2017-08-29 | A kind of undercarriage analogue means available for full machine load test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207191483U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109866941A (en) * | 2019-03-28 | 2019-06-11 | 中国飞机强度研究所 | The accurate applying method of load during undercarriage large deformation following loading |
| CN110683075A (en) * | 2019-10-29 | 2020-01-14 | 燕山大学 | Calibration device for rotary loader of nose landing gear |
-
2017
- 2017-08-29 CN CN201721090562.5U patent/CN207191483U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109866941A (en) * | 2019-03-28 | 2019-06-11 | 中国飞机强度研究所 | The accurate applying method of load during undercarriage large deformation following loading |
| CN109866941B (en) * | 2019-03-28 | 2022-04-01 | 中国飞机强度研究所 | Accurate load application method in large deformation follow-up loading process of undercarriage |
| CN110683075A (en) * | 2019-10-29 | 2020-01-14 | 燕山大学 | Calibration device for rotary loader of nose landing gear |
| CN110683075B (en) * | 2019-10-29 | 2020-12-01 | 燕山大学 | Calibration device for rotary loader of nose landing gear |
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