CN111498139A - Buffer type weight-fastening device - Google Patents
Buffer type weight-fastening device Download PDFInfo
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- CN111498139A CN111498139A CN202010323691.4A CN202010323691A CN111498139A CN 111498139 A CN111498139 A CN 111498139A CN 202010323691 A CN202010323691 A CN 202010323691A CN 111498139 A CN111498139 A CN 111498139A
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- fixed pulley
- buffer
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- test platform
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- 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
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- 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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- 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 experimental field of full quick-witted ground strength of aircraft, in particular to heavy device is detained to buffering formula for carry out full quick-witted ground strength test to the aircraft in predetermined test platform, include: the two top fixed pulley mechanisms and the two side fixed pulley mechanisms are arranged on the top in a bilateral symmetry mode, and the two side fixed pulley mechanisms are respectively positioned on two sides of the two top fixed pulley mechanisms; one end of each of the two steel cables is fixedly connected with the test piece, and the other end of each of the two steel cables vertically extends from top to bottom after passing through the first pulley and the second pulley respectively; and the two balance weights are respectively fixed with the other end of the corresponding steel cable through a buffer piece. The utility model provides a heavy device is detained to buffering formula has optimized the heavy device atress mode of knot through the design of linking firmly, makes its ceiling structure only bear vertical weight load of knot, has improved the experimental heavy device security of knot of full machine strength to through increasing buffer, reduce the influence of counter weight acceleration to the weight load of knot under the test piece knot weight point rate of deformation is very fast.
Description
Technical Field
The application belongs to the field of aircraft ground strength tests, and particularly relates to a buffer type weight-deducting device.
Background
The full-aircraft strength test weight deduction refers to deduction of the weight of an aircraft structure and the weight of test loading equipment during the aircraft structure strength test, so that the aircraft is in a zero-weight state during the test, the test load can simulate the flight load more truly, and the influence of the self weight of a testing machine and the weight of the test loading equipment on test examination is basically considered in the current full-aircraft ground strength test. According to the existing test weight deduction technology, different weight deduction modes are adopted by the wings, the fuselage and the empennage of the testing machine according to respective characteristics, wherein the fuselage generally adopts an anti-counterweight weight deduction mode.
Aiming at a machine body weight deducting device, the currently adopted method mainly comprises a crow bar type method, a pulley guiding type method and a pulley block integrated type method, but the influence of the deformation speed of a test piece on the weight deducting load is not considered in the three methods, so that the machine body weight deducting precision of 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 buffer type weight-losing device.
The application discloses heavy device is detained to buffering formula for carry out full quick-witted ground strength test to the aircraft in predetermined test platform, heavy device is detained to buffering formula includes:
the two top fixed pulley mechanisms are parallel and fixedly arranged on the top of the preset test platform in parallel, and are mutually fixed;
the two side fixed pulley mechanisms are parallel and fixedly arranged at the top of the preset test platform in parallel, and are respectively positioned at two sides of the two top fixed pulley mechanisms;
one ends of the two steel cables are fixedly connected with the test piece positioned at the bottom of the two top fixed pulley mechanisms respectively, and the other ends of the two steel cables extend from bottom to top to pass through one first pulley respectively, then extend to the side fixed pulley mechanism on the corresponding side to pass through the second pulley and finally vertically extend from top to bottom;
and the tops of the two balance weights are fixedly connected to the end part of the other end of the steel cable on the corresponding side through buffer parts respectively.
According to at least one embodiment of the application, at least two parallel ceiling beams are fixedly arranged at the top of the preset test platform, and each ceiling beam is provided with a fixing through hole along the vertical direction; wherein
Each top fixed pulley mechanism top includes a connecting screw and fixing clip, connecting screw from bottom to top runs through a fixing through-hole of ceiling beam after through fixing clip of upper and lower both ends put and fix.
According to at least one embodiment of the application, each top fixed pulley mechanism top further comprises two lugs, the first pulley is fixed on the two lugs, and the tops of the two lugs are fixedly connected with the fixing clamp at the bottom of the connecting screw rod.
According to at least one embodiment of the present application, the two top fixed pulley mechanisms are fixedly connected by a connecting rod at the axis of the first pulley.
According to at least one embodiment of the present application, at least two frame side beams parallel to each other are fixedly arranged on the top of the predetermined test platform, the two frame side beams are respectively located on two sides of the top fixed pulley mechanism, and the height from the ground of the predetermined test platform is smaller than the height from the top fixed pulley mechanism to the ground, 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 adaptive to and clamped at 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 buffer is a buffer spring.
The application has at least the following beneficial technical effects:
the utility model provides a heavy device is detained to buffering formula has optimized the heavy device atress mode of knot through the design of linking firmly, makes its ceiling structure only bear vertical weight load of knot, has improved the experimental heavy device security of knot of full machine strength to through increasing buffer, reduce the influence of counter weight acceleration to the weight load of knot under the test piece knot weight point rate of deformation is very fast.
Drawings
FIG. 1 is a schematic structural diagram of a buffer-type weight-losing device according to the present application;
FIG. 2 is a schematic structural view of a top fixed pulley mechanism of the buffering type weighing apparatus of the present application;
FIG. 3 is a schematic structural view of a side fixed pulley mechanism of the buffering type weighing device of the present application;
fig. 4 is a schematic structural view of a buffer part in the buffer-type buckle device according to the present application.
Detailed Description
In order to make the implementation objects, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below with reference to the 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 a subset of the embodiments in the present application and not all embodiments in the present application. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present application and should not be construed as limiting the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application. Embodiments of the present application will be described in detail below with reference to the accompanying drawings.
It will be understood that terms such as "central," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, which may be used in the description of the present application, refer to those orientations and positional relationships illustrated in the drawings, which are used for convenience in describing the present application and to simplify the description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the scope of the present application.
The buffering type weight-losing device of the present application will be described in further detail with reference to fig. 1 to 4.
The application discloses heavy device is detained to buffering formula for carry out full quick-witted ground strength test to the aircraft in predetermined test platform, wherein, heavy device is detained to buffering formula can include parts such as top fixed pulley mechanism, side fixed pulley mechanism, cable wire 3, counter weight 4 and bolster 5.
Specifically, the number of the top fixed pulley mechanisms and the number of the side fixed pulley mechanisms are two; as shown in fig. 1, two top fixed pulley mechanisms are parallel and fixedly arranged on the top of a predetermined test platform in parallel, and the two top fixed pulley mechanisms are fixed with each other; in addition, each top fixed pulley mechanism includes a first pulley 11.
Further, referring to fig. 1, the two side fixed pulley mechanisms are parallel and fixedly arranged on the top of the predetermined test platform in parallel, and the two side fixed pulley mechanisms are respectively located on 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 end of each of the two steel cables 3 is fixedly connected to the test piece located at the bottom of each of the two top fixed pulley mechanisms, and the other end of each of the two steel cables 3 extends from bottom to top to pass through a first pulley 3 and then extends to the side fixed pulley mechanism on the corresponding side (as shown in fig. 1, the steel cable 3 on the left side extends to the side fixed pulley mechanism on the left side, and the steel cable 3 on the right side extends to the side fixed pulley mechanism on the right side), then passes through the second pulley 21, and finally extends vertically from top to bottom.
Further, the number of the counterweights 4 is two, and the tops of the two counterweights 4 are fixedly connected to the other end portion of the steel cable 3 on the corresponding side through a buffer 5 respectively.
To sum up, the buffering formula is detained heavy device of this application has optimized the heavy device atress mode of detaining through the design of linking firmly, makes its ceiling structure only bear vertical weight load of detaining, has improved the experimental weight device security of detaining of full machine strength to through increasing buffer, reduce the influence of counter weight acceleration to the weight load of detaining under the test piece detains the fast condition of weight point deformation rate.
Further, the heavy device is detained to buffering formula of this application, predetermined test platform can be selected as suitable test platform as required, in this embodiment, preferably fixes being provided with two piece at least ceiling beam 51 that are parallel to each other at predetermined test platform's top, has seted up fixing hole along vertical direction on every ceiling beam 51.
Similarly, the top fixed pulley mechanism may have a variety of suitable structures, in this embodiment, as shown in fig. 2, preferably, each top fixed pulley mechanism includes a connecting screw 12 and a fixing clip 13, and the connecting screw 12 vertically penetrates through a fixing through hole of the ceiling beam 51 from bottom to top and is fixed by the fixing clip 13 on the top.
Further, preferably, each top fixed pulley mechanism further comprises a double lug 14, the first pulley 11 is fixed on the double lug 14 (bottom), and the top of the double lug 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 buffering type weight-losing device of the present application, preferably, at least two frame side beams 61 parallel to each other are fixedly disposed at the top of the predetermined test platform, and the two frame side beams 61 are respectively located at 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 less 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 may include a C-shaped clamping device 22 and a positioning side plate 23, the top of the C-shaped clamping device 22 is adapted to be clamped on the 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 fixes the second pulley 21; since the height of the frame side beam 61 from the ground of the predetermined test platform is less than the height of the top fixed pulley mechanism from the ground, the height of the side fixed pulley mechanism is also less than the height of the top fixed pulley mechanism from the ground.
Further, the heavy device of buffering formula knot of this application, bolster 5 can be selected as multiple suitable device as required, and preferred bolster 5 is buffer spring in this embodiment.
Further, the buffer type weight-deducting device installation process of the application is as follows:
firstly, a connecting screw 12 penetrates through a ceiling beam 51 structure of a test platform and is connected with a weight-fastening double lug 14, and the connecting screw 12 is fixed through an upper end fixing clamping device 13 and a lower end weight-fastening double lug 14; then the C-shaped clamping device 22 is fixed on the side edge beam 61 structure of the test platform through bolts, the positioning side plate 23 is installed on the C-shaped clamping device 61, and finally, one end of the buffer spring is connected with the balance weight 4 and the other end of the buffer spring is connected with the weight-fastening steel cable 3.
When the buffer type weight-fastening device is used, firstly, weight-fastening pulleys (namely the first pulley 11 and the second pulley 21) are installed on a ceiling structure and a side structure of the weight-fastening device, and secondly, a test piece, the weight-fastening ceiling structure, the weight-fastening side structure and a counterweight suspension buffer structure are connected by adopting a special weight-fastening steel cable to form a set of complete weight-fastening structure; and finally, 2 sets of symmetrical weight-buckling devices are fixedly connected for use, so that only vertical weight-buckling load is applied to the top shed weight-buckling device, and the safety of the device is improved.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within 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 (6)
1. A buffer-type weighing device for testing the ground strength of an airplane in a predetermined test platform, which is characterized by comprising:
the two top fixed pulley mechanisms comprise first pulleys (11), are parallel and are fixedly arranged on the top of the preset test platform in parallel, and are mutually fixed;
the side fixed pulley mechanisms comprise second pulleys (21), the two side fixed pulley mechanisms are parallel and are 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 of the two steel cables (3) is fixedly connected with the test piece positioned at the bottom of each of the two top fixed pulley mechanisms, and the other end of each of the two steel cables (3) extends from bottom to top to respectively penetrate through one first pulley (11), then extends to the side fixed pulley mechanism on the corresponding side to penetrate through the second pulley (21), and finally vertically extends from top to bottom;
the top parts of the two balance weights (4) are fixedly connected to the end parts of the other ends of the steel cables (3) on the corresponding sides through buffer parts (5) respectively.
2. The buffer-type weight-losing device according to claim 1, wherein at least two parallel ceiling beams (51) are fixedly arranged at the top of the predetermined test platform, and each ceiling beam (51) is provided with a fixing through hole along the vertical direction; wherein
Each top fixed pulley mechanism top includes a connecting screw rod (12) and fixing clip (13), connecting screw rod (12) from bottom to top run through a fixing through-hole of ceiling beam (51) after through fixing clip (13) of upper and lower both ends fix.
3. The buffer-type weight-losing device according to claim 2, wherein each top fixed pulley mechanism top further comprises a double lug (14), the first pulley (11) is fixed on the double lug (14), and the top of the double lug (14) is fixedly connected with the fixed clamping device (13) at the bottom of the connecting screw rod (12).
4. The buffer-type weight-losing device according to claim 3, wherein the two top fixed pulley mechanisms are fixedly connected at the axle center of the first pulley (11) through a connecting rod (15).
5. The buffer-type weight-losing device according to claim 1, wherein at least two frame side beams (61) parallel to each other are fixedly arranged at the top of the predetermined test platform, the two frame side beams (61) are respectively located at two sides of the two top fixed pulley mechanisms, and the height from the ground of the predetermined test platform is less than that from the ground of the top fixed pulley mechanisms, in addition, the cross section of the frame side beam (61) is in an i shape, wherein
Each side fixed pulley mechanism includes that C type card is put (22) and location curb plate (23), C type card is put (22) top adaptation joint and is in frame side roof beam (61) bottom, the top fixed connection of location curb plate (23) is in C type card is put (22) bottom, the bottom of location curb plate (23) is fixed second pulley (21).
6. Buffer-type weighter-deducting device according to claim 1, characterized in that said buffer (5) is a buffer spring.
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 |
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| Publication Number | Publication Date |
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| CN111498139A true CN111498139A (en) | 2020-08-07 |
| CN111498139B CN111498139B (en) | 2023-06-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010323691.4A Active CN111498139B (en) | 2020-04-22 | 2020-04-22 | Buffer type buckling device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113335560A (en) * | 2021-06-04 | 2021-09-03 | 中国飞机强度研究所 | Complicated load box section or barrel section testing device and method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000065704A (en) * | 1998-08-19 | 2000-03-03 | Toyo Seiki Seisakusho:Kk | Creep tester |
| CN104034549A (en) * | 2014-06-24 | 2014-09-10 | 中国飞机强度研究所 | Loading device for aircraft wing large deformation tests |
| CN105015796A (en) * | 2014-04-29 | 2015-11-04 | 中国飞机强度研究所 | Following weight-deducting pulley block system |
| 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 |
| 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 |
| 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 |
| CN109580061A (en) * | 2018-11-05 | 2019-04-05 | 中国航空工业集团公司西安飞机设计研究所 | The experimental rig and evaluation method of counterbalancing weight friction force of steel rope in aircraft structure test |
| CN109878759A (en) * | 2019-03-29 | 2019-06-14 | 中国飞机强度研究所 | Aircraft testing device, constraint and loading method, button weight and loading method |
-
2020
- 2020-04-22 CN CN202010323691.4A patent/CN111498139B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000065704A (en) * | 1998-08-19 | 2000-03-03 | Toyo Seiki Seisakusho:Kk | Creep tester |
| CN105015796A (en) * | 2014-04-29 | 2015-11-04 | 中国飞机强度研究所 | Following weight-deducting pulley block system |
| CN104034549A (en) * | 2014-06-24 | 2014-09-10 | 中国飞机强度研究所 | Loading device for aircraft wing large deformation tests |
| 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 |
| CN109580061A (en) * | 2018-11-05 | 2019-04-05 | 中国航空工业集团公司西安飞机设计研究所 | The experimental rig and evaluation method of counterbalancing weight friction force of steel rope in aircraft structure test |
| CN109878759A (en) * | 2019-03-29 | 2019-06-14 | 中国飞机强度研究所 | Aircraft testing device, constraint and loading method, button weight and loading method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113335560A (en) * | 2021-06-04 | 2021-09-03 | 中国飞机强度研究所 | Complicated load box section or barrel section testing device and method |
| 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 |
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| CN111498139B (en) | 2023-06-20 |
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