CN211121869U - Structural crash-resistant test device - Google Patents
Structural crash-resistant test device Download PDFInfo
- Publication number
- CN211121869U CN211121869U CN201921700043.5U CN201921700043U CN211121869U CN 211121869 U CN211121869 U CN 211121869U CN 201921700043 U CN201921700043 U CN 201921700043U CN 211121869 U CN211121869 U CN 211121869U
- Authority
- CN
- China
- Prior art keywords
- test piece
- pulley
- hanging basket
- structural
- crash
- 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
Abstract
The utility model relates to an anti crash test field of structure, concretely relates to anti crash test device of structure. The utility model provides a test device which comprises a base, a support frame, a hanging basket component, a test piece clamping monitoring component, a hoisting motor and an instant release device; through the height of lifting by crane the motor from top to bottom control hanging flower basket, the weight of the quantity adjustment hanging flower basket of increase and decrease balancing weight, release in the twinkling of an eye can realize that the hanging flower basket falls in the twinkling of an eye, and terminal surface level falls on the structure test piece under the hanging flower basket, simulates the process that the weight of structure test piece received impact force in the twinkling of an eye. The test device is simple, and can quickly simulate the crash process of the structural test piece; by adjusting the height of the hanging basket and the number of the balancing weights, the falling and collision process of the hanging baskets with different heights and weights and the structural test piece can be quickly simulated; a plurality of monitoring devices sensors can record the crash process of the structural test piece so as to analyze the crash performance parameters of the test piece.
Description
Technical Field
The invention relates to the field of structural crash resistance tests, in particular to a structural crash resistance test device.
Background
With the development of technology, the safety requirements for airplanes and helicopters are higher and higher, and therefore the crash-resistant design of structures becomes more and more important. In the structural design of an airplane, a crash-resistant energy-absorbing structure, a crash-resistant energy-absorbing seat and the like are generally adopted to absorb crash energy, so as to protect a driver and passengers. In the design of the crash-resistant structure, the performance parameters of the crash-resistant structure directly determine the crash-resistant capability of the aircraft. In order to design a reasonable crash resistant structure, performance parameters of the crash resistant structure must be determined prior to design. At the present stage, the performance parameters of the crash-resistant structure are usually researched by adopting a theoretical analysis, numerical simulation or simulation test method. The simulation test can truly reflect the crash process, and becomes an extremely important means for researching the crash-resistant structure. During a simulation test, a test piece is usually directly released from a certain height position to test the crash resistance of the test piece, and the posture of the test piece is uncontrollable in the releasing process and cannot test the crash resistance of the test piece in a targeted manner. Meanwhile, the test method is difficult to simulate high-altitude crash.
Disclosure of Invention
The purpose of the invention is as follows: the structural crash-resistant test device can rapidly simulate crash tests at different heights.
The technical scheme of the invention is as follows: a structural crash-resistant test device comprises a base, a support frame, a hanging basket assembly, a test piece clamping assembly, a hoisting motor and an instant release device, wherein the support frame comprises four stand columns and a top plate, and each stand column is also provided with a slide rail; the hanging basket component consists of a hanging basket and a pulley component, the pulley component consists of a pulley mounting seat, a pulley and a bearing, the pulley is arranged on the pulley mounting seat in a matching way through the bearing and a pin shaft and is fixed and anti-loose through a flat-head shaft, and the pulley mounting seat and the hanging basket are fixed through bolts;
the supporting frame and the test piece clamping assembly are fixed on the base, the hoisting motor is fixed on the top plate and connected with the instant release device, and the instant release device is connected with the hanging basket and used for instantly releasing the hanging basket; the pulley component is embedded into the sliding rail and slides up and down along the sliding rail; in order to prevent the pulley assembly from moving in the sliding process, two pulleys are arranged on two sides of each pulley and are perpendicular to the planes of the pulleys.
The invention has the beneficial effects that: (1) the test device is simple, and the crash process of the structural test piece can be rapidly simulated;
(2) by adjusting the height of the hanging basket and the number of the balancing weights, the falling and collision process of the hanging baskets with different heights and weights and the structural test piece can be quickly simulated;
(3) the plurality of measuring device sensors can record the crash process of the structural test piece so as to analyze crash performance parameters of the test piece.
Drawings
FIG. 1 is a schematic structural view of the present invention;
figure 2 is a schematic view of the basket assembly and the support frame,
figure 3 is a schematic view of the sheave assembly construction,
fig. 4 is a schematic structural view of a test piece clamping assembly.
Description of numbering: the test device comprises a support frame 1, a base 2, a basket component 3, a test piece clamping component 4, a hoisting motor 5, an instant release device 6, an upright column 11, a slide rail 12, a basket 31, a pulley component 32, a counterweight 33, a pulley 321, a bearing 322, a pin 323, a flat head shaft 324, an opening pin, a test clamping device 41, a load sensor 42, a displacement sensor 43 and a test piece 44.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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 invention.
Referring to the attached drawings 1-4, as shown in fig. 1, the structural crash-resistant test device mainly comprises a support frame 1, a base 2, a hanging basket assembly 3, a test piece clamping assembly 4, a hoisting motor 5 and an instant release device 6. The support frame 1 and the base 2 are welded together to form an outer frame of the test platform, the hoisting motor 5 is fixed on the support frame 1, the hoisting motor 5 hooks the instant release device 6, the grabbing hook of the instant release device 6 hooks the hanging basket assembly 3, and the test piece clamping assembly 4 is fixed on the base 2 through screws.
In a specific implementation case, the structure of the device can be further modified as follows, specifically, the support frame is formed by welding four upright posts and a top plate, and four sliding rails are welded on the upright posts; the whole device is more firm in the test process by adopting a welding fixing mode.
In the structure of the test device, the hanging basket component 3 comprises a hanging basket 31, a balancing weight 33 and a pulley component 32, wherein the balancing weight 33 and the pulley component 32 are fixed on the hanging basket 31 through bolts, and the number of the balancing weight 33 can be correspondingly changed according to the test requirements; to simulate the falling and collision of the test piece under different impact forces. The structural schematic diagram of the hanging basket component is shown in fig. 2, the hanging basket component 2 comprises a hanging basket 31, a balancing weight 33 and a pulley component 32, the pulley component 32 and the balancing weight 33 are fixed on the hanging basket 31 through bolts, the pulley component 32 is embedded into the slide rail 12 and slides up and down along the slide rail 12, and the front, back, left and right positions of the pulley component 32 are limited through 3 groups of pulleys 321.
As shown in fig. 3, the pulley assembly 32 includes 3 sets of pulleys 321, the pulleys 321 are engaged with the bearings 322 and fixed on the pulley mounting seat through the pin 323, the flat shaft and the cotter 324, there are 3 pulleys in the pulley assembly 32, and the middle pulley is perpendicular to the upper and lower pulley surfaces to limit the front, back, left and right positions of the pulley assembly 32. Lubricating oil is coated between the middle pulley 321 and the bearing 322 and between the three pulleys and the sliding rail 12, so that the sliding friction force is reduced, and the test error is reduced.
In the test device structure, the hoisting motor 5 is fixed on the support frame 1 and connected with the instant release device 6, the hanging basket 31 is hooked by the catch at the lower end of the instant release device 6, the opening and closing sensitivity of the catch is high, the quick response can be realized, and the hanging basket 31 is released by the instant release device through controlling the opening and closing of the catch at the lower end.
In the structure of the testing device, the base 2 and the support frame 1 jointly form a testing outer frame, and the base 1 provides support for the test piece clamping assembly; the test piece clamping assembly comprises a test piece clamping device, a load sensor, a displacement sensor and a high-speed camera, a placing platform is provided for the test piece, and the load, the displacement and the damage process in the test process can be monitored.
Fig. 4 shows a specific embodiment of the test piece holding unit 4 in the above-described test device, in which the holding unit 4 includes a test piece holding device 41, a lower end 4 load sensor 42, and a displacement sensor 43, and a test piece 44 is fixed to the holding device 41 by bolts.
When the test device is used for testing, firstly, a test piece 44 is placed on the test clamping device 41, the number of the balancing weights 33 is adjusted, the height of the hanging basket assembly 3 is adjusted up and down through the hoisting motor 5, the instant release device 6 is started, the grapple of the instant release device 6 is opened, the hanging basket assembly 3 falls down and hits on the test piece 44, the load and the displacement are monitored through the load sensor 42 and the displacement sensor 43, and the falling and hitting process of a structural piece can be simulated and monitored.
In the test process, the test piece can be directly fixed at the bottom end of the hanging basket, and the design form is closer to a real scene. The upper surface of the test piece clamping device can be further provided with a clamping fixture, different clamping postures of the test piece can be realized by the fixture, the falling and collision of the test piece at different angles can be simulated, the clamping fixture can be further directly arranged at the lower end of the hanging basket, and the falling and damage scene can be simulated more truly.
The foregoing is merely a detailed description of the embodiments of the present invention, and some of the conventional techniques are not detailed. The scope of the present invention is not limited thereto, and any changes or substitutions that can be easily made by those skilled in the art within the technical scope of the present invention will be covered by the scope of the present invention. The protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The utility model provides an anti crash test device of structure which characterized in that: the device comprises a base, a support frame, a hanging basket assembly, a test piece clamping assembly, a hoisting motor and an instant release device, wherein the support frame comprises four upright posts and a top plate, and each upright post is also provided with a slide rail; the hanging basket component consists of a hanging basket and a pulley component, the pulley component consists of a pulley mounting seat, a pulley and a bearing, the pulley is mounted on the pulley mounting seat in a matched mode through the bearing and a pin shaft and fixed through a flat-head shaft, and the pulley mounting seat and the hanging basket are fixed through bolts; the supporting frame and the test piece clamping assembly are fixed on the base, the hoisting motor is fixed on the top plate and connected with the instant release device, and the instant release device is connected with the hanging basket and used for instantly releasing the hanging basket; the pulley component is embedded into the sliding rail and slides up and down along the sliding rail.
2. The structural crash resistance test device of claim 1, wherein: two pulleys are arranged on two sides of each pulley of the pulley assembly and are perpendicular to the planes of the pulleys, and the middle pulleys are perpendicular to the upper pulley surface and the lower pulley surface to limit the front, back, left and right positions of the pulley assembly.
3. The structural crash resistance test device of claim 2, wherein: lubricating oil is coated between the middle pulley and the bearing and between the three pulleys and the sliding rail.
4. The structural crash resistance test device of claim 1, wherein: the support frame is formed by welding four stand columns and a top plate, and sliding rails are welded on the four stand columns.
5. The structural crash resistance test device of claim 1, wherein: the hanging basket component comprises a hanging basket, a balancing weight and a pulley component, wherein the balancing weight and the pulley component are fixed on the hanging basket through bolts.
6. The structural crash resistance test device of claim 5, wherein: the number of balancing weights can be correspondingly changed according to the test requirements.
7. The structural crash resistance test device of claim 1, wherein: the lower end of the instant release device hooks the hanging basket in a grapple mode, and the instant release device releases the hanging basket by controlling the opening and closing of the grapple at the lower end.
8. The structural crash resistance test device of claim 1, wherein: the test piece clamping assembly comprises a test piece clamping device, a load sensor, a displacement sensor and a high-speed camera, the test piece clamping device is used for clamping and fixing the test piece, and the load sensor, the displacement sensor and the high-speed camera are used for detecting test parameters of the test piece.
9. The structural crash resistance test device of claim 8, wherein: and a clamping fixture is arranged on the test piece clamping device, and the angle of the clamping fixture is adjustable.
10. The structural crash resistance test device of claim 9, wherein: the clamping fixture is arranged at the lower end of the hanging basket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921700043.5U CN211121869U (en) | 2019-10-11 | 2019-10-11 | Structural crash-resistant test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921700043.5U CN211121869U (en) | 2019-10-11 | 2019-10-11 | Structural crash-resistant test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211121869U true CN211121869U (en) | 2020-07-28 |
Family
ID=71689298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921700043.5U Active CN211121869U (en) | 2019-10-11 | 2019-10-11 | Structural crash-resistant test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211121869U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114544397A (en) * | 2022-03-17 | 2022-05-27 | 北京航空航天大学 | Test system for impact separation test |
-
2019
- 2019-10-11 CN CN201921700043.5U patent/CN211121869U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114544397A (en) * | 2022-03-17 | 2022-05-27 | 北京航空航天大学 | Test system for impact separation test |
| CN114544397B (en) * | 2022-03-17 | 2023-11-03 | 北京航空航天大学 | Test system for impact separation test |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104913893B (en) | Drop hammer impact test device used for simulating vehicle collision | |
| CN105157973B (en) | Arrester hook dynamic fatigue test device and test method | |
| CN215573665U (en) | Small landing gear drop test bed | |
| CN102297762B (en) | Speed-different type safety catcher self-locking reliability performance test machine | |
| CN105158004B (en) | A kind of rotor craft test platform | |
| KR101193384B1 (en) | Impact test machine | |
| CN105136420A (en) | Comprehensive testing apparatus and testing method for simulating impact of arresting hook to deck and drop shock of undercarriage | |
| CN112683698A (en) | Tensile impact test stand with medium strain rate for material | |
| CN211121869U (en) | Structural crash-resistant test device | |
| CN201436572U (en) | Drop tester | |
| CN116443266A (en) | Emergent breaking dynamic test device of undercarriage | |
| RU2402470C2 (en) | System for imitation of zero gravity of multilink mechanisms | |
| CN109592600B (en) | Large-scale heavy-load supporting and lifting system | |
| CN112378608A (en) | Prestress-loaded rocket-borne equipment vibration test system and test method | |
| US6983638B2 (en) | Head restraint evaluator | |
| CN107445006B (en) | Oblique elevator safety gear testing device and method | |
| CN106644347B (en) | A kind of lander take-off and landing device drop test device and test method | |
| CN203376218U (en) | Bending fatigue test device of steel wire rope | |
| CN110736668A (en) | submarine cable impact performance test system | |
| CN106706960A (en) | Drop test bench used for intermediate checking of acceleration transducer and detection method | |
| CN112051168A (en) | Circulating concrete material and component impact tester and using method | |
| CN203385550U (en) | Instantaneous-type anti-drop safety device inspection testbed | |
| CN104236838B (en) | A kind of moment automatic releasing device | |
| CN116558761A (en) | High-speed water impact test device that goes into of structure based on spring is with higher speed | |
| CN202158948U (en) | Self-locking reliability test machine for speed difference safety catcher |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |