CN206248322U - A kind of loading device - Google Patents
A kind of loading device Download PDFInfo
- Publication number
- CN206248322U CN206248322U CN201621324767.0U CN201621324767U CN206248322U CN 206248322 U CN206248322 U CN 206248322U CN 201621324767 U CN201621324767 U CN 201621324767U CN 206248322 U CN206248322 U CN 206248322U
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- bar
- piston
- bogusware
- ejector
- fixing end
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Abstract
The utility model is related to a kind of loading device, the loading device is used to substitute piston ejector ram, ejector piston in nose-gear dynamic loading experiment and pins down bar, the loading device includes piston ejector ram, ejector piston bogusware, pins down bar bogusware, pin and nut, piston ejector ram, ejector piston bogusware and pins down bar bogusware and is connected on nose-gear by pin and nut；When being tested, ejection load is applied on piston ejector ram, ejector piston bogusware, apply to pin down load on bar bogusware is pind down, that is, realize the accurate loading of nose-gear dynamic loading experiment.The closure of loading device of the present utility model and undercarriage and real piston ejector ram, ejector piston and pin down bar and be consistent so that the transfer route of load is constant, does not interfere with the accuracy of result of the test；Can be without dismantling and installing additional the loading requirement that other parts just disclosure satisfy that all directions of different tests situation.
Description
Technical field
The invention belongs to aircraft structure test technical field, more particularly to a kind of loading device.
Background technology
In carrier-borne aircraft design field, undercarriage is that safe important feature is taken off and landed to relation.Carrier-borne
During machine catapult-assisted take-off, the dynamic loading of nose-gear mostlys come from nose-gear piston ejector ram, ejector piston and pins down the effect of bar.It is right
When the nose-gear of carrier-borne aircraft carries out catapult-assisted take-off dynamic loading experiment, if using real piston ejector ram, ejector piston and pining down bar and being tested,
Needs are redesigned and manufactured to whole nose-gear structure, are significantly increased the workload of experimental design and are tested into
This.Therefore, it is true for substituting in test in nose-gear dynamic loading experiment, it is necessary to design a kind of brand-new loading device
Real piston ejector ram, ejector piston and pin down bar, on the premise of result of the test is not influenceed, can effective short form test design process, save and test
Cost.
The content of the invention
It is an object of the invention to provide a kind of loading device, in nose-gear dynamic loading experiment, for replacing preceding rising and falling
Real piston ejector ram, ejector piston and bar is pind down in frame, in the case where test requirements document is met, reach short form test design process, save experiment
The purpose of cost.
To reach above-mentioned purpose, the technical solution adopted by the present invention is：A kind of loading device, the loading device is at preceding
Fall for substituting piston ejector ram, ejector piston and pining down bar in frame dynamic loading experiment, the loading device include piston ejector ram, ejector piston bogusware, pin down bar bogusware,
Pin and nut, piston ejector ram, ejector piston bogusware and are pind down bar bogusware and are connected on nose-gear by pin and nut；
When being tested, ejection load is applied on piston ejector ram, ejector piston bogusware, apply to pin down load on bar bogusware is pind down, i.e.,
Realize the accurate loading of nose-gear dynamic loading experiment.
Further, the piston ejector ram, ejector piston bogusware is y-type structure part, and piston ejector ram, ejector piston bogusware one end is disposed with the He of joint auricle one
Joint auricle two, the piston ejector ram, ejector piston bogusware other end be disposed with one ejection load auricle, the terminal lug bit end of piston ejector ram, ejector piston bogusware with lead
Bar vacation bar connection processed, the loading auricle end of piston ejector ram, ejector piston bogusware applies ejection load.
Further, it is described pin down bar bogusware include pining down fixing end before bar, pin down bar after fixing end and release bolt, lead
Before bar processed fixing end with pin down bar after fixing end by discharging bolt connection.
Further, described to pin down fixing end before bar be U-shape structure part, one end arrangement for pining down fixing end before bar
There are attachment lug one and attachment lug two, the other end for pining down fixing end before bar is disposed with bolt hole, it is described to pin down fixed before bar
The engaging lug bit end at end is connected with the terminal lug bit end of the piston ejector ram, ejector piston bogusware, pins down the keyhole end of fixing end before bar by release
Bolt with pin down bar after fixing end be connected.
Further, described to pin down fixing end after bar be cylindrical component, and the one end for pining down fixing end after bar is disposed with spiral shell
Pit, the other end for pining down fixing end after bar is disposed with hauled load auricle, pins down the bolt nose end of fixing end after bar by releasing
Put bolt and be connected with the keyhole end for pining down fixing end before bar, the hauled load auricle end for pining down fixing end after bar applies traction and carries
Lotus.
Further, the diameter of the middle part screw diameter less than two ends connecting portion of the release bolt, to add in experiment
Being downloaded under certain load to disconnect, for control release load in nose-gear dynamic loading experiment.
Further, the piston ejector ram, ejector piston bogusware, pin, nut, pin down fixing end before bar and pin down the material of fixing end after bar
Material is 30CrMnSiA, and the material of the release bolt is 25A.
The closure of loading device of the present utility model and undercarriage and real piston ejector ram, ejector piston and pin down bar and be consistent,
So that the transfer route of load is constant, the accuracy of result of the test is not interfered with；Can be without dismantling and installing additional other parts just
Disclosure satisfy that the loading requirement of all directions of different tests situation.
Brief description of the drawings
Accompanying drawing herein is merged in specification and constitutes the part of this specification, shows and meets implementation of the invention
Example, and be used to explain principle of the invention together with specification.
Fig. 1 is loading device scheme of installation (front view) of the present utility model.
Fig. 2 is loading device scheme of installation (top view) of the present utility model.
Fig. 3 is the structural representation of piston ejector ram, ejector piston bogusware of the present utility model.
Fig. 4 pins down fixing end structural representation before bar for of the present utility model.
Fig. 5 pins down fixing end structural representation after bar for of the present utility model.
Fig. 6 is release bolt arrangement schematic diagram of the present utility model.
Description of reference numerals：
1- piston ejector ram, ejector piston boguswares,
11- joints auricle one, 12- joints auricle two, 13- ejection load auricles,
2- pins down bar bogusware,
21- pins down fixing end before bar,
211- attachment lugs one, 212- attachment lugs two, 213- bolts hole,
22- pins down fixing end after bar,
221- screwed holes, 222- hauled load auricles,
23- discharges bolt,
3- pins,
4- nuts.
Specific embodiment
To make the purpose, technical scheme and advantage of present invention implementation clearer, below in conjunction with the embodiment of the present invention
Accompanying drawing, the technical scheme in the embodiment of the present invention is further described in more detail.In the accompanying drawings, identical from start to finish or class
As label represent same or similar element or the element with same or like function.Described embodiment is the present invention
A part of embodiment, rather than whole embodiments.Embodiment below with reference to Description of Drawings is exemplary type, it is intended to used
It is of the invention in explaining, and be not considered as limiting the invention.Based on the embodiment in the present invention, ordinary skill people
The every other embodiment that member is obtained under the premise of the work of creation type is not made, belongs to the scope of protection of the invention.Under
Face is described in detail with reference to accompanying drawing to embodiments of the invention.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", "front", "rear",
The orientation or position relationship of the instruction such as "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outward " are based on accompanying drawing institute
The orientation or position relationship for showing, are for only for ease of the description present invention and simplify description, rather than the dress for indicating or implying meaning
Put or element with specific orientation, with specific azimuth configuration and operation, therefore it is not intended that must be protected to the present invention
The limitation of scope.
The utility model provides a kind of loading device, and loading device is used to substitute in being used in nose-gear dynamic loading experiment
Piston ejector ram, ejector piston and pin down bar, its loading device specifically includes piston ejector ram, ejector piston bogusware 1, pins down bar bogusware 2, pin 3 and nut 4, such as Fig. 1 and
Shown in Fig. 2 is installed, piston ejector ram, ejector piston bogusware 1 is connected on nose-gear with bar bogusware 2 is pind down by pin 3 and nut 4.
Piston ejector ram, ejector piston bogusware 1 is y-type structure part, and one end of piston ejector ram, ejector piston bogusware 1 is respectively disposed with two joint auricles, that is, connects
Head auricle 1 and joint auricle 2 12, the other end of piston ejector ram, ejector piston bogusware 1 are disposed with an ejection load auricle 13, its piston ejector ram, ejector piston
The structure of bogusware 1 is as shown in Figure 3.
Pin down bar bogusware 2 and include pining down fixing end 21 before bar, pin down bar after fixing end 22 and release bolt 7, before pining down bar
Fixing end 21 by discharge bolt 7 be connected to pin down bar after fixing end 22, formed and holistic pin down bar bogusware 2.
It is U-shape structure part to pin down fixing end 21 before bar, pins down and 21 one end is fixed before bar is respectively disposed with two connections
Auricle, i.e. attachment lug 1 and attachment lug 2 212, pin down and 21 other end is fixed before bar are disposed with bolt hole 213,
In the present embodiment, bolt hole 213 is horizontal direction.The structure of fixing end 21 is as shown in Figure 4 before pining down bar.
It is cylindrical component to pin down fixing end 22 after bar, pins down and 22 one end is fixed after bar is disposed with screwed hole 221, at this
In embodiment, the horizontal direction of screwed hole 221 pins down and 22 other end is fixed after bar is disposed with a hauled load auricle 222.Lead
The structural representation of fixing end 22 is as shown in Figure 5 after bar processed.
Release bolt 23 is that, with thin neck structure, one end has the stage portion of cylinder, and the other end is external screw thread cylindrical portion, in
Portion is screw rod, discharges the diameter of the middle part screw portion diameter less than two ends coupling part structure of bolt 23, its release bolt 23
Structural representation it is as shown in Figure 6.Middle part screw rod is smaller to be disconnected to discharge bolt 23 under being loaded into certain load in experiment,
For the control release load in nose-gear dynamic loading experiment.
Loading device connection procedure of the invention is：Bolt 23 will be discharged first to be firstly connected to pin down fixing end 21 before bar
Bolt hole 213 on (bolt hole 213 is blocked by the stage portion for discharging the one end of bolt 23), fixing end after bar then will be pind down again
22 screwed hole 221 is connected in the external screw thread cylindrical portion of the release other end of bolt 23, so as to constitute pin down bar bogusware 2.
Additionally, in order to realize discharge bolt 23 discharge, by discharge bolt 23 tensile capacity be designed to be less than with
The tensile capacity of the part of its connection, thus in the present invention piston ejector ram, ejector piston bogusware 1, pin 3, nut 4, pin down the and of fixing end 21 before bar
The material for pining down fixing end 22 after bar is 30CrMnSiA, and the material for discharging bolt 23 is 25A.
Before nose-gear dynamic loading experiment is carried out, 2 12 points of the center tap auricle 1 of piston ejector ram, ejector piston bogusware 1 and joint auricle
It is not aligned with the attachment lug 1 and attachment lug 2 212 that pin down bar bogusware 2, then before being connected to by pin 3 and nut 4
On undercarriage.When being tested, ejection load is applied on the ejection load auricle 13 of piston ejector ram, ejector piston bogusware 1, it is false bar is pind down
Apply to pin down load on the hauled load auricle 222 of part 2, you can realize the accurate loading of nose-gear dynamic loading experiment.
Loading device of the present utility model can be in nose-gear dynamic loading experiment instead of the ejection of true nose-gear
Bar and bar is pind down, disclosure satisfy that the loading requirement of experiment, it is to avoid the nose-gear caused by install true piston ejector ram, ejector piston and pin down bar
The design work that structure global revision brings is substantially improved with experimentation cost.
The closure of loading device of the present utility model and undercarriage and real piston ejector ram, ejector piston and pin down bar and be consistent,
So that the transfer route of load is constant, the accuracy of result of the test is not interfered with；Can be without dismantling and installing additional other parts just
Disclosure satisfy that the loading requirement of all directions of different tests situation.
The above, optimal specific embodiment only of the invention, but protection scope of the present invention is not limited thereto,
Any one skilled in the art the invention discloses technical scope in, the change or replacement that can be readily occurred in,
Should all be included within the scope of the present invention.Therefore, protection scope of the present invention should be with the protection model of the claim
Enclose and be defined.
Claims (7)
1. a kind of loading device, it is characterised in that the loading device is used to substitute to launch in nose-gear dynamic loading experiment
Bar includes piston ejector ram, ejector piston bogusware (1), pins down bar bogusware (2), pin (3) and nut (4), launch with bar, the loading device is pind down
Bar bogusware (1) and pin down bar bogusware (2) and be connected on nose-gear by pin (3) and nut (4)；
When being tested, ejection load is applied on piston ejector ram, ejector piston bogusware (1), applies to pin down load on bar bogusware (2) is pind down,
Realize the accurate loading of nose-gear dynamic loading experiment.
2. loading device according to claim 1, it is characterised in that the piston ejector ram, ejector piston bogusware (1) is y-type structure part,
Piston ejector ram, ejector piston bogusware (1) one end is disposed with joint auricle one (11) and joint auricle two (12), piston ejector ram, ejector piston bogusware (1) other end arrangement
There is ejection load auricle (13), the terminal lug bit end of piston ejector ram, ejector piston bogusware (1) is connected with bar bogusware (2) is pind down, and piston ejector ram, ejector piston is false
The loading auricle end of part (1) applies ejection load.
3. loading device according to claim 2, it is characterised in that described to pin down bar bogusware (2) solid before bar including pining down
Fixed end (21), fixing end (22) and release bolt (23) after bar are pind down, pin down before bar fixing end (21) and pin down fixing end after bar
(22) connected by discharging bolt (23).
4. loading device according to claim 3, it is characterised in that it is described pin down bar before fixing end (21) be U-shape structure
Part, described one end for pining down fixing end (21) before bar is disposed with attachment lug one (211) and attachment lug two (212), pins down
The other end of fixing end (21) is disposed with bolt hole (213) before bar, it is described pin down before bar the engaging lug bit end of fixing end (21) with
The terminal lug bit end connection of the piston ejector ram, ejector piston bogusware (1), pins down the keyhole end of fixing end (21) before bar by discharging bolt (23)
With pin down bar after fixing end (22) be connected.
5. loading device according to claim 4, it is characterised in that it is described pin down bar after fixing end (22) be cylinder zero
Part, one end for pining down fixing end (22) after bar is disposed with screwed hole (221), and the other end for pining down fixing end (22) after bar is disposed with
Hauled load auricle (222), pins down the bolt nose end of fixing end (22) after bar fixed before bar by discharging bolt (23) and pining down
The keyhole end connection of (21) is held, the hauled load auricle end applying hauled load of fixing end (22) after bar is pind down.
6. loading device according to claim 5, it is characterised in that the middle part screw diameter of the release bolt (23)
Less than the diameter of two ends connecting portion, to be disconnected under being loaded into certain load in experiment, for nose-gear dynamic loading experiment
Middle control release load.
7. loading device according to claim 6, it is characterised in that the piston ejector ram, ejector piston bogusware (1), pin (3), nut
(4) material for, pining down fixing end (21) before bar and pining down fixing end (22) after bar is 30CrMnSiA, the release bolt
(23) material is 25A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621324767.0U CN206248322U (en) | 2016-12-05 | 2016-12-05 | A kind of loading device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621324767.0U CN206248322U (en) | 2016-12-05 | 2016-12-05 | A kind of loading device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206248322U true CN206248322U (en) | 2017-06-13 |
Family
ID=59003508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621324767.0U Active CN206248322U (en) | 2016-12-05 | 2016-12-05 | A kind of loading device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206248322U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108502207A (en) * | 2018-03-19 | 2018-09-07 | 成都飞机工业（集团）有限责任公司 | Ejection impact ground validation test method |
| CN117030232A (en) * | 2023-10-09 | 2023-11-10 | 中国飞机强度研究所 | High-speed release test device and test method for landing gear hold-down bars of carrier-based aircraft |
-
2016
- 2016-12-05 CN CN201621324767.0U patent/CN206248322U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108502207A (en) * | 2018-03-19 | 2018-09-07 | 成都飞机工业（集团）有限责任公司 | Ejection impact ground validation test method |
| CN117030232A (en) * | 2023-10-09 | 2023-11-10 | 中国飞机强度研究所 | High-speed release test device and test method for landing gear hold-down bars of carrier-based aircraft |
| CN117030232B (en) * | 2023-10-09 | 2024-01-09 | 中国飞机强度研究所 | High-speed release test device and test method for landing gear hold-down bars of carrier-based aircraft |
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