CN113294404B - Momentum and energy absorption device shared by rubber and daub - Google Patents
Momentum and energy absorption device shared by rubber and daub Download PDFInfo
- Publication number
- CN113294404B CN113294404B CN202110426341.5A CN202110426341A CN113294404B CN 113294404 B CN113294404 B CN 113294404B CN 202110426341 A CN202110426341 A CN 202110426341A CN 113294404 B CN113294404 B CN 113294404B
- Authority
- CN
- China
- Prior art keywords
- actuating device
- rod
- daub
- end plate
- plate
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
- F15B15/22—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke
- F15B15/226—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke having elastic elements, e.g. springs, rubber pads
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B35/00—Testing or checking of ammunition
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- Vibration Dampers (AREA)
- Braking Arrangements (AREA)
Abstract
The invention provides a momentum and energy absorption device shared by rubber and daub, which comprises: the actuating device, the guide device and the buffer device; the actuating device impacts the buffer device through the guide device, daub is arranged in the buffer device, the buffer device absorbs kinetic energy of the actuating device through the daub, and the actuating device absorbs the kinetic energy through the daub to brake; the side wall of the buffer device is provided with a through hole, and the daub is discharged through the through hole after absorbing kinetic energy. The device effectively solves the problem of braking of the actuating device in an ejection test through the buffering and guide design of the daub-rubber pad, and parts are not damaged by rubbing and can be quickly reset and reused.
Description
Technical Field
The invention relates to the field of ejection devices, in particular to a momentum and energy absorption device shared by rubber and daub.
Background
When the missile adopts a cold launching mode, a corresponding actuating device is needed to push the missile to exit the barrel at a high speed. In order to fully research the functional performance of the missile at different launching speeds, a missile launching test is usually required to be carried out in the development and design stage. During the test, the actuating device pushes the missile to advance to the set speed at a high speed, the missile is separated from the actuating device, the missile continues to fly, and the actuating device needs to be braked to prepare for the next test. In the braking process of the actuating device, the actuating cylinder is required to be safely, stably and reliably braked without causing damage to related test devices and equipment. For the existing aerodynamic force test device, the traditional cylinder buffer has limited energy absorbed by braking, and an actuating device with high speed and large mass is difficult to effectively brake in a short braking stroke. If the actuating device is easy to be rubbed and damaged with other components such as a sleeve, an end plate and the like, the repeated use requirement of the test is difficult to meet.
Disclosure of Invention
In view of the shortcomings of the prior art, it is an object of the present invention to provide a momentum and energy absorbing device for rubber and mastic.
According to the present invention, there is provided a momentum and energy absorbing device for rubber and mastic, comprising: the actuating device, the guide device and the buffer device;
the actuating device impacts the buffer device through the guide device, daub is arranged in the buffer device, the buffer device absorbs kinetic energy of the actuating device through the daub, and the actuating device absorbs the kinetic energy through the daub to brake;
the side wall of the buffer device is provided with a through hole, and the daub absorbs kinetic energy and then is discharged through the through hole.
Preferably, the actuating means comprises: an actuating device inner rod, an actuating device outer rod and an adapter;
the adapter is mounted at one end of the inner side of the outer rod of the actuating device, the adapter is fixedly connected with one end of the inner rod of the actuating device, and the inner rod of the actuating device penetrates through the inner side of the outer rod of the actuating device and extends out of the other end of the outer rod of the actuating device;
the guide device is configured as the actuator inner rod.
Preferably, the buffering device further comprises: the outer sleeve front end plate, the outer sleeve rear end plate, the outer cylinder, the rubber pad, the inner cylinder, the adapter plate and the fixing plate;
the outer barrel is characterized in that the front end plate of the outer barrel and the rear end plate of the outer barrel are respectively arranged at two ends of the outer barrel, the front end plate of the outer barrel and the rear end plate of the outer barrel are arranged in a circular ring shape, the inner barrel is embedded in the outer barrel, the inner barrel and the outer barrel are coaxial, a cavity is formed between the outer side of the inner barrel and the inner side of the outer barrel, and a plurality of through holes are formed in the side wall of the outer barrel;
the adapter plate is arranged on the outer side of the outer sleeve rear end plate, the adapter plate is partially clamped in the cavity, the annular fixing plate is arranged on the outer side of the adapter plate, and the outer sleeve rear end plate, the adapter plate and the fixing plate are fixed through bolts;
the rubber pad is arranged at the position, close to the adapter plate, of the cavity, and the cement is filled in the residual space of the cavity.
Preferably, the actuating device inner rod passes through the outer sleeve front end plate, the inner cylinder, the adapter plate and the fixing plate from the side close to the outer sleeve front end plate in sequence and extends outwards, and the buffer device allows the actuating device inner rod to freely slide.
Preferably, the inner diameter of the outer rod of the actuating device is larger than the outer diameter of the inner cylinder, the outer diameter of the outer rod of the actuating device is smaller than the inner diameter of the front end plate of the outer sleeve, and the outer diameter of the outer rod of the actuating device is smaller than the inner diameter of the outer cylinder.
Preferably, the axial length of the actuating device outer rod is set to be 1.1 times the axial length of the outer cylinder.
Preferably, in the buffering process, the actuating device outer rod extrudes the daub, the rubber pad supports the daub, and the daub absorbs kinetic energy and then is discharged through the through hole.
Preferably, under extreme impact, when the daub is completely expelled, the actuating device outer rod is braked by the rubber pad.
Preferably, when braking is finished, the actuating device resets by pulling the adapter, cleans the discharged daub and refills the daub.
Compared with the prior art, the invention has the following beneficial effects:
1. the device effectively solves the problem of braking of the actuating device in the ejection test through the buffering and guide design of the daub-rubber pad, and each part is not damaged by rubbing and can be quickly reset and reused.
2. The daub is easy to clean and fill, and cannot corrode metal.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is a schematic perspective view of a momentum and energy absorbing device for rubber and mastic;
FIG. 2 is a cross-sectional view of a momentum and energy absorbing device shared by rubber and mastic prior to catapult braking;
figure 3 is a cross-sectional view of the momentum and energy absorbing means shared by the rubber and mastic after the catapult brake.
Shown in the figure:
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that variations and modifications can be made by persons skilled in the art without departing from the concept of the invention. All falling within the scope of the present invention.
Example 1
As shown in fig. 1 and 2, a momentum and energy absorbing device for rubber and mastic, comprising: the actuating device, the guiding device and the buffer device; the actuating device impacts the buffer device through the guide device, the daub 7 is arranged in the buffer device, the buffer device absorbs kinetic energy of the actuating device through the daub 7, and the actuating device absorbs the kinetic energy through the daub 7 to brake; the side wall of the buffer device is provided with a through hole, and the daub 7 absorbs kinetic energy and is discharged through the through hole; the actuating device includes: an actuating device inner rod 1, an actuating device outer rod 2 and an adapter 3; an adapter 3 is installed at one end of the inner side of the actuating device outer rod 2, the adapter 3 is fixedly connected with one end of an actuating device inner rod 1, and the actuating device inner rod 1 penetrates through the inner side of the actuating device outer rod 2 and extends out of the other end of the actuating device outer rod 2; the guiding device is set as an actuating device inner rod 1; the buffer device further includes: the outer sleeve comprises an outer sleeve front end plate 4, an outer sleeve rear end plate 5, an outer cylinder 6, a rubber pad 8, an inner cylinder 9, an adapter plate 10 and a fixed plate 11; an outer sleeve front end plate 4 and an outer sleeve rear end plate 5 are respectively arranged at two ends of the outer cylinder 6, the outer sleeve front end plate 4 and the outer sleeve rear end plate 5 are arranged in a circular ring shape, the inner cylinder 9 is embedded in the outer cylinder 6, the inner cylinder 9 and the outer cylinder 6 are coaxial, a cavity is formed between the outer side of the inner cylinder 9 and the inner side of the outer cylinder 6, and a plurality of through holes are formed in the side wall of the outer cylinder 6; an adapter plate 10 is arranged on the outer side of the outer sleeve rear end plate 5, part of the adapter plate 10 is clamped in the cavity, an annular fixing plate 11 is arranged on the outer side of the adapter plate 10, and the outer sleeve rear end plate 5, the adapter plate 10 and the fixing plate 11 are fixed through bolts; a rubber pad 8 is arranged at the position of the cavity close to the adapter plate 10, and the residual space of the cavity is filled with cement 7; an actuating device inner rod 1 sequentially penetrates through an outer sleeve front end plate 4, an inner cylinder 9, a switching plate 10 and a fixing plate 11 from the side close to the outer sleeve front end plate 4 and extends outwards, and the buffer device allows the actuating device inner rod 1 to freely slide; the inner diameter of the outer rod 2 of the actuating device is larger than the outer diameter of the inner cylinder 9, the outer diameter of the outer rod 2 of the actuating device is smaller than the inner diameter of the front end plate 4 of the outer sleeve, and the outer diameter of the outer rod 2 of the actuating device is smaller than the inner diameter of the outer cylinder 6; the axial length of the actuating device outer rod 2 is 1.1 times of the axial length of the outer cylinder 6.
As shown in fig. 2 and 3, in the buffering process, the actuating device outer rod 2 extrudes the cement 7, the rubber pad 8 supports the cement 7, and the cement 7 absorbs kinetic energy and is discharged through the through hole; under extreme impact, when all the daub 7 is discharged, the actuating device outer rod 2 is braked by the rubber pad 8; when the braking is finished, the actuating device resets by pulling the adapter 3, clears the discharged daub 7 and refills the daub 7.
Example 2 is a preferred example of example 1.
Example 2
The invention comprises the following steps: an actuating device inner rod 1, an actuating device outer rod 2, an adapter 3, an outer sleeve front end plate 4, an outer sleeve rear end plate 5, an outer sleeve 6, cement 7, a rubber pad 8, an inner sleeve 9, a switching plate 10 and a fixing plate 11; an actuating device inner rod 1 and an actuating device outer rod 2 are connected through an adapter 3 to form an actuating device; the outer cylinder 6 is fixed on an external part through an outer sleeve front end plate 4 and an outer sleeve rear end plate 5, and the surface of the outer cylinder 6 is provided with a plurality of through holes; the inner cylinder 9 is nested in the outer cylinder 6 and is fixed on the fixed plate 11 by the adapter plate 10 and the outer sleeve rear end plate 5 together in a screw joint manner; three annular rubber pads 8 are arranged between the outer cylinder 6 and the inner cylinder 9 and filled with cement 7 to form the buffer device together. The daub 7 is softer than the rubber pad 8, can effectively absorb impact kinetic energy, is easy to clean and fill, and cannot corrode metal; the outer diameter of the inner rod 1 of the actuating device is smaller than the inner diameter of the inner cylinder 9 and penetrates through the inner cylinder 9 to guarantee smooth sliding, the inner diameter of the outer rod 2 of the actuating device is larger than the outer diameter of the inner cylinder 9, the outer diameter of the outer rod 2 of the actuating device is smaller than the inner diameter of the outer cylinder 6, and the length of the outer rod 2 of the actuating device is 1.1 times that of the outer cylinder 6.
As shown in fig. 2 and 3, the arrows indicate the direction of movement of the actuating means during ejection; the actuating device inner rod 1 drives the whole actuating device and the test object to eject towards the direction of the buffer device in the ejection process, wherein a cavity formed by the outer barrel 6 and the inner barrel 9 plays a limiting role. The outer rod 2 of the actuating device reaches a set speed before entering the outer cylinder 6, and the actuating device is separated from the test object. The actuating device outer rod 2 then collides with the mastic 7, the mastic 7 is continuously squeezed and applies a braking acceleration to the actuating device outer rod 2, but the actuating device outer rod 2 is not damaged, so that the speed of the whole actuating device is gradually reduced to zero, braking is completed, and the final state is as shown in fig. 3. In the period, the extruded daub 7 is discharged from a plurality of through holes on the surface of the outer cylinder 6, the outer cylinder 6 and the inner cylinder 9 are prevented from being damaged due to overlarge pressure, and three rubber pads 8 positioned at the rear end of the daub 7 support the daub. Under extreme impact, if all the daub 7 is discharged, the actuating device outer rod 2 is contacted with the rubber pad 8 to be extruded and continuously braked, so that the actuating device outer rod 2 is prevented from directly colliding with the adapter plate 10 to be damaged.
After the braking, use hoist engine pulling adapter 3 to make and actuate the dress and reset, clear up between urceolus 6 and the inner tube 9 and the outer pole 2 inside and outside remaining clay 7 of surface, inspection rubber pad 8 ensures not impaired back, injects new clay 7 in to the cavity, prepares for the test next time.
In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.
The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.
Claims (2)
1. A momentum and energy absorbing device for rubber and mastic of a missile launcher, comprising: the actuating device, the guide device and the buffer device;
the actuating device impacts the buffer device through the guide device, the inside of the buffer device is provided with the plaster (7), the buffer device absorbs the kinetic energy of the actuating device through the plaster (7), and the actuating device absorbs the kinetic energy through the plaster (7) to brake;
the side wall of the buffer device is provided with a through hole, and the daub (7) absorbs kinetic energy and is discharged through the through hole;
the actuating device includes: an actuating device inner rod (1), an actuating device outer rod (2) and an adapter (3);
the adapter (3) is installed at one end of the inner side of the actuating device outer rod (2), the adapter (3) is fixedly connected with one end of the actuating device inner rod (1), and the actuating device inner rod (1) penetrates through the inner side of the actuating device outer rod (2) and extends out of the other end of the actuating device outer rod (2);
the guiding device is arranged as an actuating device inner rod (1);
the buffer device further includes: the outer sleeve comprises an outer sleeve front end plate (4), an outer sleeve rear end plate (5), an outer cylinder (6), a rubber pad (8), an inner cylinder (9), a transfer plate (10) and a fixed plate (11);
the outer sleeve front end plate (4) and the outer sleeve rear end plate (5) are respectively installed at two ends of the outer barrel (6), the outer sleeve front end plate (4) and the outer sleeve rear end plate (5) are arranged in a circular ring shape, the inner barrel (9) is embedded in the outer barrel (6), the inner barrel (9) and the outer barrel (6) are coaxial, a cavity is formed between the outer side of the inner barrel (9) and the inner side of the outer barrel (6), and a plurality of through holes are formed in the side wall of the outer barrel (6);
the adapter plate (10) is installed on the outer side of the outer sleeve rear end plate (5), part of the adapter plate (10) is clamped into the cavity, the annular fixing plate (11) is installed on the outer side of the adapter plate (10), and the outer sleeve rear end plate (5), the adapter plate (10) and the fixing plate (11) are fixed through bolts;
the rubber pad (8) is arranged at the position, close to the adapter plate (10), of the cavity, and the cement (7) is filled in the residual space of the cavity;
the actuating device inner rod (1) sequentially penetrates through the outer sleeve front end plate (4), the inner cylinder (9), the adapter plate (10) and the fixing plate (11) from the side close to the outer sleeve front end plate (4) and extends outwards, and the buffer device allows the actuating device inner rod (1) to freely slide;
the inner diameter of the actuating device outer rod (2) is larger than the outer diameter of the inner cylinder (9), the outer diameter of the actuating device outer rod (2) is smaller than the inner diameter of the outer sleeve front end plate (4), and the outer diameter of the actuating device outer rod (2) is smaller than the inner diameter of the outer cylinder (6);
the axial length of the actuating device outer rod (2) is set to be 1.1 times of the axial length of the outer cylinder (6);
in the buffering process, the actuating device outer rod (2) extrudes the daub (7), the rubber pad (8) supports the daub (7), and the daub (7) absorbs kinetic energy and is discharged through the through hole;
the actuating device outer rod (2) collides with the plaster (7) subsequently, the plaster (7) is continuously extruded and applies braking acceleration to the actuating device outer rod (2), so that the speed of the whole actuating device is gradually reduced to zero, and braking is finished;
when the braking is finished, the actuating device resets through pulling adapter (3), clears up the discharge clay (7) and refills clay (7).
2. The rubber-to-mastic momentum and energy absorbing device for missile launching devices of claim 1, wherein: under extreme impact, when the daub (7) is completely discharged, the actuating device outer rod (2) is braked by the rubber pad (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110426341.5A CN113294404B (en) | 2021-04-20 | 2021-04-20 | Momentum and energy absorption device shared by rubber and daub |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110426341.5A CN113294404B (en) | 2021-04-20 | 2021-04-20 | Momentum and energy absorption device shared by rubber and daub |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113294404A CN113294404A (en) | 2021-08-24 |
| CN113294404B true CN113294404B (en) | 2022-11-11 |
Family
ID=77319900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110426341.5A Active CN113294404B (en) | 2021-04-20 | 2021-04-20 | Momentum and energy absorption device shared by rubber and daub |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113294404B (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3948498A (en) * | 1973-09-25 | 1976-04-06 | Nhk Spring Co., Ltd. | Fluid filled spring damper including flexible end wall |
| JPS61266841A (en) * | 1985-05-13 | 1986-11-26 | Toshiba Corp | Vibration absorber |
| US4735402A (en) * | 1983-11-09 | 1988-04-05 | Liquid Spring Investors, Ltd. | Fluid suspension spring and dampener for vehicle suspension system |
| EP0680581A1 (en) * | 1993-01-21 | 1995-11-08 | Raychem Corporation | Heat-recoverable article |
| CN2640792Y (en) * | 2003-05-13 | 2004-09-15 | 上海材料研究所 | Elastic clay buffer with shunt accumulation |
| DE112013003125T5 (en) * | 2012-06-21 | 2015-03-12 | Smc Corporation | Double rod type shock absorber |
| CN205383132U (en) * | 2015-12-20 | 2016-07-13 | 重庆维庆液压机械有限公司 | Take magnetorheological suspensions buffer's hydro -cylinder |
| CN207701660U (en) * | 2017-10-18 | 2018-08-07 | 陈昊男 | A kind of bicycle seat installation damping tail pipe |
| CN108612711A (en) * | 2018-03-23 | 2018-10-02 | 燕山大学 | Vibration damping device for hydraulic plumbing system |
| CN210637429U (en) * | 2019-08-23 | 2020-05-29 | 郑州大学 | Testing device suitable for MRD damper perfusion magnetorheological fluid |
| CN112112923A (en) * | 2020-08-18 | 2020-12-22 | 株洲时代瑞唯减振装备有限公司 | Multistage sealing method for cavity of liquid rubber composite node |
| CN112555323A (en) * | 2021-01-12 | 2021-03-26 | 福州大学 | Metal rubber liquid pressure buffer |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4018428A (en) * | 1975-07-30 | 1977-04-19 | Hayes-Albion Corporation | Shock absorber |
| FR2726874B1 (en) * | 1994-11-14 | 1996-12-20 | Jarret | HYDROSTATIC ELASTOMER COMPRESSION TYPE DAMPING DEVICE AND ITS APPLICATIONS |
| DE102007036960A1 (en) * | 2007-08-04 | 2009-02-05 | Mtu Aero Engines Gmbh | Damping device, welding system for spin welding and spin welding |
| CN104554329B (en) * | 2014-12-26 | 2017-07-21 | 中车戚墅堰机车车辆工艺研究所有限公司 | Rail traffic vehicles buffer unit |
| CN111963614B (en) * | 2020-08-24 | 2022-02-22 | 南京丹枫机械科技有限公司 | Viscous damper |
| CN112460181A (en) * | 2020-11-30 | 2021-03-09 | 重庆理工大学 | Impact-resistant buffer based on permanent magnet excitation |
| CN112555324A (en) * | 2021-01-12 | 2021-03-26 | 福州大学 | Elastic cement buffer based on metal rubber-disc spring and working method thereof |
-
2021
- 2021-04-20 CN CN202110426341.5A patent/CN113294404B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3948498A (en) * | 1973-09-25 | 1976-04-06 | Nhk Spring Co., Ltd. | Fluid filled spring damper including flexible end wall |
| US4735402A (en) * | 1983-11-09 | 1988-04-05 | Liquid Spring Investors, Ltd. | Fluid suspension spring and dampener for vehicle suspension system |
| JPS61266841A (en) * | 1985-05-13 | 1986-11-26 | Toshiba Corp | Vibration absorber |
| EP0680581A1 (en) * | 1993-01-21 | 1995-11-08 | Raychem Corporation | Heat-recoverable article |
| CN2640792Y (en) * | 2003-05-13 | 2004-09-15 | 上海材料研究所 | Elastic clay buffer with shunt accumulation |
| DE112013003125T5 (en) * | 2012-06-21 | 2015-03-12 | Smc Corporation | Double rod type shock absorber |
| CN205383132U (en) * | 2015-12-20 | 2016-07-13 | 重庆维庆液压机械有限公司 | Take magnetorheological suspensions buffer's hydro -cylinder |
| CN207701660U (en) * | 2017-10-18 | 2018-08-07 | 陈昊男 | A kind of bicycle seat installation damping tail pipe |
| CN108612711A (en) * | 2018-03-23 | 2018-10-02 | 燕山大学 | Vibration damping device for hydraulic plumbing system |
| CN210637429U (en) * | 2019-08-23 | 2020-05-29 | 郑州大学 | Testing device suitable for MRD damper perfusion magnetorheological fluid |
| CN112112923A (en) * | 2020-08-18 | 2020-12-22 | 株洲时代瑞唯减振装备有限公司 | Multistage sealing method for cavity of liquid rubber composite node |
| CN112555323A (en) * | 2021-01-12 | 2021-03-26 | 福州大学 | Metal rubber liquid pressure buffer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113294404A (en) | 2021-08-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201772990U (en) | Low-blocking-degree independent six-degree of freedom movement device for captive trajectory experiment system | |
| CN107764506B (en) | Impact-resistant device and method applied to balance in temporary impact type wind tunnel | |
| CN105366077B (en) | A kind of locking releasing device docked suitable for satellites coupling ring | |
| CN105460230A (en) | Pneumatic catapult-assisted take-off device and method used for unmanned plane | |
| CN113294404B (en) | Momentum and energy absorption device shared by rubber and daub | |
| CN103076223A (en) | Launcher based on Hopkinson pull rod test equipment | |
| CN108756410A (en) | A kind of self-centering viscous damper of precompressed ring spring | |
| CN212195970U (en) | Lightweight adapter | |
| CN106017208A (en) | Integrated firing device of heavy air cannon | |
| CN207570755U (en) | A kind of anti-impact device applied to balance in intermittent wind tunnel | |
| CN101708777B (en) | Pneumatic catapult | |
| CN111766040B (en) | High-speed train dynamic model test equipment | |
| CN205784850U (en) | Integral type Heavy duty air big gun discharger | |
| CN115200406B (en) | Mechanical ejection system of forest fire extinguishing bomb | |
| CN102680255B (en) | Springback-preventing high-speed train model accelerating device based on momentum transferring | |
| CN201961920U (en) | Anti-dropping safety mechanism for elevator | |
| RU2253583C2 (en) | Buffer stop | |
| CN111366482B (en) | Dynamic high-speed loading ejection device | |
| CN209403942U (en) | A kind of crane | |
| RU2374110C1 (en) | Track power absorption device to protect passenger rolling stock | |
| CN208535046U (en) | Launch protective device | |
| CN108547900B (en) | Throwing protection device | |
| CN113494870A (en) | Buffer device for reusable ejection simulation system | |
| RU104131U1 (en) | SAFE BLACK OF RAILWAY | |
| CN217146357U (en) | Shock attenuation foot rest based on unmanned aerial vehicle |
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 |