CN111498139B - Buffer type buckling device - Google Patents
Buffer type buckling device Download PDFInfo
- Publication number
- CN111498139B CN111498139B CN202010323691.4A CN202010323691A CN111498139B CN 111498139 B CN111498139 B CN 111498139B CN 202010323691 A CN202010323691 A CN 202010323691A CN 111498139 B CN111498139 B CN 111498139B
- Authority
- CN
- China
- Prior art keywords
- fixed pulley
- buckling
- buffer
- buckling device
- fixedly connected
- 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.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64F—GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT; DESIGNING, MANUFACTURING, ASSEMBLING, CLEANING, MAINTAINING OR REPAIRING AIRCRAFT, NOT OTHERWISE PROVIDED FOR; HANDLING, TRANSPORTING, TESTING OR INSPECTING AIRCRAFT COMPONENTS, NOT OTHERWISE PROVIDED FOR
- B64F5/00—Designing, manufacturing, assembling, cleaning, maintaining or repairing aircraft, not otherwise provided for; Handling, transporting, testing or inspecting aircraft components, not otherwise provided for
- B64F5/60—Testing or inspecting aircraft components or systems
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Transportation (AREA)
- Aviation & Aerospace Engineering (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The application belongs to the whole aircraft ground intensity test field of aircraft, in particular to a buffering formula buckling device for carry out whole aircraft ground intensity test to the aircraft in predetermined test platform, include: the two side fixed pulley mechanisms are respectively positioned at two sides of the two top fixed pulley mechanisms; one end of each steel cable is fixedly connected with the test piece, and the other end of each steel cable vertically extends from top to bottom after penetrating through the first pulley and the second pulley respectively; the two counterweights are respectively fixed with the other end of the corresponding steel cable through a buffer piece. The buffer type buckling device optimizes the stress mode of the buckling device through the fixedly connected design, so that the ceiling structure of the buffer type buckling device only bears vertical buckling load, the safety of the buckling device for the full-machine strength test is improved, and the influence of the counterweight acceleration on the buckling load is reduced under the condition that the buckling key deformation rate of a test piece is faster through the buffer device.
Description
Technical Field
The application belongs to the field of aircraft whole-aircraft ground strength tests, and particularly relates to a buffer type buckling device.
Background
The whole-aircraft strength test buckling weight means that the aircraft structure weight, the test loading equipment weight and the like are deducted when the aircraft structure strength test is carried out, so that the aircraft is in a zero-weight state when the test is carried out, the test load can simulate the flight load more truly, and the influence of the own weight of the test machine and the test loading equipment weight on test examination is basically considered in the current whole-aircraft ground strength test. According to the current test buckling technology, wings, a fuselage and a tail wing of the test machine adopt different buckling modes according to respective characteristics, wherein the fuselage generally adopts an inverse counterweight buckling mode.
Aiming at the buckling device of the machine body, the currently adopted method mainly comprises three modes of a crow bar type, a pulley guiding type and a pulley block integrated type, but the three modes do not consider the influence of the deformation speed of the test piece on the buckling load, so that the buckling precision of the machine body in the whole machine ground strength test is reduced.
Disclosure of Invention
In order to solve at least one of the above technical problems, the present application provides a buffering type buckling device.
The application discloses buffering formula detains heavy device for carry out full aircraft ground strength test to the aircraft in predetermined test platform, buffering formula detains heavy device and includes:
the two top fixed pulley mechanisms comprise first pulleys, are arranged on the tops of the preset test platforms in parallel and fixedly in parallel, and are mutually fixed;
the two side fixed pulley mechanisms comprise second pulleys, the two side fixed pulley mechanisms are parallel and fixedly arranged at the top of the preset test platform in parallel, and the two side fixed pulley mechanisms are respectively positioned at two sides of the two top fixed pulley mechanisms;
one end of each steel cable is fixedly connected with a test piece positioned at the bottom of each top fixed pulley mechanism, the other end of each steel cable extends from bottom to top to penetrate through one first pulley respectively, then extends to the side fixed pulley mechanism at the corresponding side, penetrates through the second pulley and finally extends vertically from top to bottom;
the top parts of the two counterweights are fixedly connected to the other end parts of the steel ropes on the corresponding sides through a buffer piece respectively.
According to at least one embodiment of the application, at least two mutually parallel top shed beams are fixedly arranged on the top of the preset test platform, and each top shed beam is provided with a fixing through hole along the vertical direction; wherein the method comprises the steps of
Each top fixed pulley mechanism top includes a connecting screw rod and fixed clamping device, the connecting screw rod runs through from bottom to top one the fixed through hole of roof beam is followed by fixed clamping device at upper and lower both ends.
According to at least one embodiment of the present application, each top fixed pulley mechanism top still includes the ears, it is fixed on the ears first pulley, the top of ears with the fixed clamping of connecting screw bottom is put fixed connection.
According to at least one embodiment of the present application, the two top fixed pulley mechanisms are fixedly connected at the axle center of the first pulley by a connecting rod.
According to at least one embodiment of the present application, at least two parallel frame side beams are fixedly disposed on the top of the predetermined test platform, the two frame side beams are respectively located on two sides of the two top fixed pulley mechanisms, and the height from the ground of the predetermined test platform is smaller than the height from the ground of the top fixed pulley mechanisms, in addition, the cross section of the frame side beam is in an I shape, wherein
Each side fixed pulley mechanism comprises a C-shaped clamping device and a positioning side plate, the top of the C-shaped clamping device is in adaptive clamping connection with the bottom of the side beam of the frame, the top of the positioning side plate is fixedly connected to the bottom of the C-shaped clamping device, and the bottom of the positioning side plate is fixed with the second pulley.
According to at least one embodiment of the present application, the cushioning member is a cushioning spring.
The application has at least the following beneficial technical effects:
the buffer type buckling device optimizes the stress mode of the buckling device through the fixedly connected design, so that the ceiling structure of the buffer type buckling device only bears vertical buckling load, the safety of the buckling device for the full-machine strength test is improved, and the influence of the counterweight acceleration on the buckling load is reduced under the condition that the buckling key deformation rate of a test piece is faster through the buffer device.
Drawings
FIG. 1 is a schematic structural view of a buffering type buckle device of the present application;
FIG. 2 is a schematic view of the top fixed pulley mechanism part of the buffering type buckle device of the present application;
FIG. 3 is a schematic view of a side fixed pulley mechanism part of the buffering type buckle device of the present application;
fig. 4 is a schematic structural view of a buffer part in the buffer type buckle device of the present application.
Detailed Description
In order to make the purposes, technical solutions and advantages of the implementation of the present application more clear, the technical solutions in the embodiments of the present application will be described in more detail below with reference to the accompanying drawings in the embodiments of the present application. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all, of the embodiments of the present application. The embodiments described below by referring to the drawings are exemplary and intended for the purpose of explaining the present application and are not to be construed as limiting the present application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application. Embodiments of the present application are described in detail below with reference to the accompanying drawings.
It is to be understood that terms such as "center," "longitudinal," "transverse," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like may be used in the description of the present application to refer to an orientation or positional relationship based on that shown in the drawings, merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the scope of protection of the present application.
The cushioned buckle weight device of the present application is described in further detail below with reference to fig. 1-4.
The application discloses buffering formula knot heavy device for carry out full-aircraft ground intensity test to the aircraft in predetermined test platform, wherein, buffering formula knot heavy device can include parts such as top fixed pulley mechanism, side fixed pulley mechanism, cable 3, counter weight 4 and bolster 5.
Specifically, the number of the top fixed pulley mechanisms and the side fixed pulley mechanisms is two; as shown in fig. 1, the two top fixed pulley mechanisms are parallel and fixedly arranged at the top of the preset test platform in parallel, and the two top fixed pulley mechanisms are mutually fixed; in addition, each top fixed pulley mechanism includes a first pulley 11.
Further, referring to fig. 1, two side fixed pulley mechanisms are arranged in parallel and fixedly at the top of the preset test platform, and the two side fixed pulley mechanisms are respectively positioned at two sides of the two top fixed pulley mechanisms; in addition, each side fixed pulley mechanism includes a second pulley 21.
Further, the number of the steel cables 3 is two, one ends of the two steel cables 3 are fixedly connected with test pieces positioned at the bottoms of the two top fixed pulley mechanisms respectively, the other ends of the two steel cables 3 extend from bottom to top to penetrate through one first pulley 3 respectively, then extend to the corresponding side fixed pulley mechanism (as shown in fig. 1, the left steel cable 3 extends to the left side fixed pulley mechanism, the right steel cable 3 extends to the right side fixed pulley mechanism) and then penetrate through the second pulley 21, and finally extend vertically from top to bottom.
Further, the number of the weights 4 is two, and the tops of the two weights 4 are fixedly connected to the other end portions of the wire ropes 3 on the corresponding sides, respectively, through one buffer 5.
To sum up, the buffer type buckling device optimizes the stress mode of the buckling device through the fixedly connected design, so that the ceiling structure only bears vertical buckling load, the safety of the buckling device in the whole machine strength test is improved, and the influence of the counterweight acceleration on the buckling load is reduced by adding the buffer device under the condition that the key deformation rate of the buckling of the test piece is faster.
Further, the buffering formula knot of this application is heavy device, and predetermined test platform can be selected as suitable test platform as required, in this embodiment, preferably at the fixed top that is provided with two piece at least top beams 51 that are parallel to each other of predetermined test platform, has seted up fixed through-hole along vertical direction on every top beam 51.
Similarly, the top fixed pulley mechanisms may have various suitable structures, in this embodiment, as shown in fig. 2, preferably, each top fixed pulley mechanism includes a connecting screw 12 and a fixing clamp 13, and the connecting screw 12 vertically penetrates through a fixing through hole of a canopy beam 51 from bottom to top and then is fixed by the fixing clamp 13 at the top.
Further, preferably, the top of each top fixed pulley mechanism further comprises a double ear 14, the first pulley 11 is fixed on (at the bottom of) the double ear 14, and the top of the double ear 14 is fixedly screwed with the connecting screw 12.
Further, it is preferable that the two top fixed pulley mechanisms are fixedly connected at the axial center of the first pulley 11 thereof by a connecting rod 15. Specifically, a through hole may be formed in the connecting rod 15, and the pulley pin of the first pulley 11 passes through the through hole of the connecting rod 15 to achieve fixed connection.
Further, in the buffer type buckling device of the present application, it is preferable that at least two frame side beams 61 parallel to each other are fixedly provided on the top of the predetermined test platform, and the two frame side beams 61 are respectively located on two sides (left and right sides in fig. 1) of the two top fixed pulley mechanisms; and the height of the frame side beam 61 from the ground of the preset test platform is smaller than the height of the top fixed pulley mechanism from the ground, and in addition, the cross section of the frame side beam 61 is I-shaped.
Correspondingly, preferably, each side fixed pulley mechanism can comprise a C-shaped clamping device 22 and a positioning side plate 23, wherein the top of the C-shaped clamping device 22 is adaptively clamped on an I-shaped bottom plate of the frame side beam 61, the top of the positioning side plate 23 is fixedly connected to the bottom of the C-shaped clamping device 22 through a bolt, and the bottom of the positioning side plate 23 is fixedly provided with the second pulley 21; since the height of the frame side sill 61 from the ground of the predetermined test bed is smaller than the height of the top fixed pulley mechanism from the ground, the height of the side fixed pulley mechanism is also smaller than the height of the top fixed pulley mechanism from the ground.
Further, in the buffering type buckling device of the present application, the buffering piece 5 can be selected as a plurality of suitable devices according to needs, and in this embodiment, the buffering piece 5 is preferably a buffering spring.
Further, the buffer type buckling device of the application is installed as follows:
firstly, a connecting screw rod 12 penetrates through a roof beam 51 structure of a test platform and is connected with a buckling double lug 14, and the connecting screw rod 12 is fixed through an upper end fixing clamping device 13 and a lower end buckling double lug 14; and the C-shaped clamping device 22 is fixed on the side beam 61 structure of the test platform through bolts, the positioning side plate 23 is arranged on the C-shaped clamping device 61, and finally one end of the buffer spring is connected with the counterweight 4, and the other end is connected with the buckling steel cable 3.
When the buffering type buckling device is used, firstly buckling pulleys (namely a first pulley 11 and a second pulley 21) are arranged on a ceiling structure and a side edge structure of the buckling device, and secondly a special buckling steel rope is adopted to connect a test piece, the buckling ceiling structure, the buckling side edge structure and a counterweight hanging buffering structure to form a complete buckling structure; and finally, the 2 sets of symmetrical buckling devices are fixedly connected for use, so that only vertical buckling load is applied to the ceiling buckling devices, and the safety of the devices is improved.
The foregoing is merely specific embodiments of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions easily conceivable by those skilled in the art within the technical scope of the present application should be covered in the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (4)
1. A cushioned buckling device for performing a full aircraft ground strength test on an aircraft within a predetermined test platform, the cushioned buckling device comprising:
the two top fixed pulley mechanisms comprise first pulleys (11), are arranged on the tops of the preset test platforms in parallel and fixedly in parallel, and are mutually fixed;
the two side fixed pulley mechanisms comprise second pulleys (21), the two side fixed pulley mechanisms are parallel and fixedly arranged at the top of the preset test platform in parallel, and the two side fixed pulley mechanisms are respectively positioned at two sides of the two top fixed pulley mechanisms;
one end of each steel cable (3) is fixedly connected with a test piece positioned at the bottom of each top fixed pulley mechanism, the other end of each steel cable (3) extends from bottom to top to penetrate through one first pulley (11) respectively, then extends to the side fixed pulley mechanism at the corresponding side, penetrates through the second pulley (21) and finally extends vertically from top to bottom;
the tops of the two counterweights (4) are fixedly connected to the other end parts of the steel ropes (3) at the corresponding sides through buffer pieces (5) respectively;
the two top fixed pulley mechanisms are fixedly connected at the axle center of the first pulley (11) through a connecting rod (15);
the buffer piece (5) is a buffer spring.
2. The buffer type buckling device according to claim 1, wherein at least two mutually parallel top canopy beams (51) are fixedly arranged on the top of the preset test platform, and each top canopy beam (51) is provided with a fixing through hole along the vertical direction; wherein the method comprises the steps of
Each top fixed pulley mechanism top includes a connecting screw rod (12) and fixed clamping device (13), connecting screw rod (12) are fixed through fixed clamping device (13) at upper and lower both ends after running through the fixed through-hole of a roof beam (51) from bottom to top.
3. The buffering type buckling device according to claim 2, wherein each top fixed pulley mechanism top further comprises two ears (14), the first pulleys (11) are fixed on the two ears (14), and the top of the two ears (14) is fixedly connected with a fixing clamping device (13) at the bottom of the connecting screw (12).
4. The buffer type buckling device according to claim 1, wherein at least two mutually parallel frame side beams (61) are fixedly arranged at the top of the predetermined test platform, the two frame side beams (61) are respectively positioned at two sides of the two top fixed pulley mechanisms, the height from the ground of the predetermined test platform is smaller than the height from the ground of the top fixed pulley mechanisms, in addition, the cross section of the frame side beam (61) is I-shaped, wherein
Each side fixed pulley mechanism comprises a C-shaped clamping device (22) and a positioning side plate (23), the top of the C-shaped clamping device (22) is adaptively clamped at the bottom of the frame side beam (61), the top of the positioning side plate (23) is fixedly connected to the bottom of the C-shaped clamping device (22), and the bottom of the positioning side plate (23) is fixedly provided with the second pulley (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010323691.4A CN111498139B (en) | 2020-04-22 | 2020-04-22 | Buffer type buckling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010323691.4A CN111498139B (en) | 2020-04-22 | 2020-04-22 | Buffer type buckling device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111498139A CN111498139A (en) | 2020-08-07 |
| CN111498139B true CN111498139B (en) | 2023-06-20 |
Family
ID=71871194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010323691.4A Active CN111498139B (en) | 2020-04-22 | 2020-04-22 | Buffer type buckling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111498139B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113335560B (en) * | 2021-06-04 | 2024-01-30 | 中国飞机强度研究所 | Complex load box section or barrel section test device and method |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3203509B2 (en) * | 1998-08-19 | 2001-08-27 | 株式会社東洋精機製作所 | Creep testing machine |
| CN105015796A (en) * | 2014-04-29 | 2015-11-04 | 中国飞机强度研究所 | Following weight-deducting pulley block system |
| CN104034549B (en) * | 2014-06-24 | 2016-09-07 | 中国飞机强度研究所 | A kind of aircraft wing large deformation experiment loading unit |
| JP2016161436A (en) * | 2015-03-03 | 2016-09-05 | 三菱航空機株式会社 | Loading test method and loading device of structure |
| CN109489944A (en) * | 2017-09-08 | 2019-03-19 | 中国航空工业集团公司西安飞机设计研究所 | A kind of testpieces loaded load test assembly |
| CN108088670A (en) * | 2017-11-29 | 2018-05-29 | 中国航空工业集团公司沈阳飞机设计研究所 | A kind of low load fatigue test system of aircraft installation system |
| CN109580061B (en) * | 2018-11-05 | 2021-08-03 | 中国航空工业集团公司西安飞机设计研究所 | Testing device and estimation method for friction force of counter-weight steel wire rope in airplane structure test |
| CN109878759B (en) * | 2019-03-29 | 2022-07-15 | 中国飞机强度研究所 | Airplane test device, restraining and loading method and weight deducting and loading method |
-
2020
- 2020-04-22 CN CN202010323691.4A patent/CN111498139B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN111498139A (en) | 2020-08-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106946117B (en) | Special building hoist in hoistway | |
| CN111498139B (en) | Buffer type buckling device | |
| CN207434804U (en) | A kind of steel band villa elevator rack | |
| CN103072879A (en) | Freight lift car frame device | |
| CN109682615B (en) | Hanging type monorail vehicle body strength test device | |
| CN113916489A (en) | Model supporting device for releasing five rigid body degrees of freedom of wind tunnel test model | |
| CN215339312U (en) | Large-load counterweight loading device | |
| CN205892407U (en) | Super high -speed elevator compensation arrangement's automatic balance system | |
| CN204626364U (en) | Balance weight rope capacity micromatic setting under high tension condition | |
| CN212532034U (en) | Take absorbing balance arm device and have device's monkey | |
| CN104803256A (en) | Elevator device | |
| CN209513477U (en) | A kind of rod piece compression test loading mechanism | |
| CN217867585U (en) | Compensating rope car platform vibration reduction structure | |
| CN205442323U (en) | Elevator compensating rope rises and tightly installs | |
| CN213356605U (en) | Villa elevator car frame | |
| CN218198808U (en) | A buffer function undercarriage for unmanned aerial vehicle | |
| CN215905665U (en) | Elevator car seat | |
| CN212708797U (en) | Front plate spring longitudinal beam support | |
| CN103072881A (en) | Mounting method of freight lift car frame | |
| CN219885449U (en) | Hoisting device for rocket | |
| CN214420573U (en) | Suspension mounting point additional strengthening, suspension installation assembly and vehicle that has it | |
| CN220976322U (en) | Petrochemical equipment overhauls hoist | |
| CN217574943U (en) | Single carrier cable single contact line compensation lower anchor device | |
| CN212423497U (en) | Parachute tower nacelle device | |
| CN216144486U (en) | Safety lock impact test bench |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |