CN103760011B - The adjustable buffer device of hopkinson test rod member - Google Patents
The adjustable buffer device of hopkinson test rod member Download PDFInfo
- Publication number
- CN103760011B CN103760011B CN201410029880.5A CN201410029880A CN103760011B CN 103760011 B CN103760011 B CN 103760011B CN 201410029880 A CN201410029880 A CN 201410029880A CN 103760011 B CN103760011 B CN 103760011B
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- Prior art keywords
- ring support
- base
- rod member
- rubber bar
- buffer device
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Abstract
The invention discloses the adjustable buffer device of a kind of hopkinson test rod member, including door, ring support, rubber bar, rear block seat, base；Ring support is connected with base, and ring support is enclosed within the interlude of rubber bar, and one end of rubber bar is cased with door, and the other end touches with the backstop seated connection being connected on base, has gap between door and ring support；Present configuration is simple, processing cost is low, can meet and effectively fully absorb impact complementary energy, can guarantee that again good damping effect, it is to avoid signal disturbing.
Description
Technical field
The invention belongs to material dynamic mechanical studying technological domain, the adjustable buffering of a kind of hopkinson test rod member
Device.
Background technology
The adjustable buffer device of hopkinson test rod member is that the one-dimensional stress according to Hopkinson experimental principle requires design
, the adjustable buffer device of rod member should meet can effectively fully absorb impact complementary energy, has guaranteed again to the limit
Damping effect, it is to avoid signal disturbing.Document " Dynamic properties of pulruded natural fiber reinforced
Composites using Split Hopkinson Pressure Bar technique " use T-shaped rigid mount, this structure
Being little to absorb the impact complementary energy of rod member, and bring bigger vibration to whole experimental provision, testing stand is just measured by this
The precision of signal proposes higher requirement；Document " Dynamic material property characterization by using
Split Hopkinson pressure bar (SHPB) technique " have employed a kind of more complicated energy absorption device structure, this
Mode structure is complicated, complex process, and processing charges is high, and this device is essentially fixed in device, and adjustable extent is very
Little, thus higher to the concentricity requirement of the absorbing rod in device.
Summary of the invention
It is an object of the invention to provide a kind of simple in construction, processing cost is low, can meet and effectively fully absorb impact complementary energy,
Can guarantee that again good damping effect, it is to avoid the adjustable buffer device of the hopkinson test rod member of signal disturbing.
The technical solution realizing the object of the invention is:
A kind of adjustable buffer device of hopkinson test rod member, including door, ring support, rubber bar, rear block seat,
Base；Ring support is connected with base, and ring support is enclosed within the interlude of rubber bar, and one end of rubber bar is cased with door,
The other end touches with the backstop seated connection being connected on base, has gap between door and ring support.
The present invention compared with prior art, its remarkable advantage:
(1) present configuration is simple, is not conceived to realize test requirements document by complicated structure, but by limited
The part of simple in construction by combining cleverly, meets test requirements document, convenient processing and manufacture and cost-effective while also
The reliability of this device increased.
(2) all parts in apparatus of the present invention are all to be obtained by common machine processing, and machining accuracy is higher, can protect
The degree of accuracy of card device, meets the concordance of device, thus realizes the height horizontally and vertically going up position of self
Precision adjusts, and also reduces machining difficulty, be effectively improved the precision of experimental provision while being greatly saved material cost.
(3) energy absorption device of the present invention with the addition of the preferable elastomeric material of elastoplasticity, can fully absorb impact complementary energy, thus
It is prevented effectively from the impact shock that impact complementary energy is brought to laboratory table, is substantially reduced the interference factor of signals collecting, improves this
The reliability of device.
Below in conjunction with the accompanying drawings the present invention is described in further detail.
Accompanying drawing explanation
Fig. 1 is the structural front view of the adjustable buffer device of hopkinson test rod member of the present invention.
Fig. 2 is the structural side view of the adjustable buffer device of hopkinson test rod member of the present invention.
Fig. 3 is the structure top view of the adjustable buffer device of hopkinson test rod member of the present invention.
Detailed description of the invention
In conjunction with Fig. 1～Fig. 3:
The adjustable buffer device of the present invention a kind of hopkinson test rod member, including door 1, ring support 2, rubber bar 3,
Rear block seat 4, base 6；Ring support 2 is connected with base 6, and ring support 2 is enclosed within the interlude of rubber bar 3, rubber
One end of glue stick 3 is cased with door 1, and the other end contacts with the rear block seat 4 being connected on base 6, door 1 and annular
Gap is had between frame 2.
It is connected by reinforcement between ring support 2 and base 6.Reinforcement is coupled with base 6 by coupling nut 5.
Coupling nut 5 is symmetrical about base center axis line.
Ring support 2 is annulus.
Rubber buffer rod 3 and ring support 2 interference fit.
Rear block seat 4 is connected by welding with base 6.
Its operation principle is: this device absorbs impact complementary energy by rubber buffer rod 3, and fender pile 3 is arranged on ring support
In 2.Door 1 is enclosed within rubber bar 3 head position, reduces impact pressure, it is to avoid in impact process, rubber bar 3 is directly subject to
Shock loading is damaged.There is interval between door 1 and ring support 2, deform upon pre-when absorbing buffering complementary energy for rubber bar
Stay required space.When buffering complementary energy is bigger, rear block seat 4 blocks the purpose that rubber bar reaches stable.
Embodiment 1:
The adjustable buffer device of hopkinson test rod member, including door 1, ring support 2, rubber bar 3, rear block seat 4,
Base 6；Ring support 2 is annulus, and it welds with base 6 and is connected, and ring support 2 is enclosed within rubber bar 3
Between section, one end of rubber bar 3 is cased with door 1, and the rear block seat 4 that the other end is connected on base 6 with welding contacts, gear
Gap is had between lid 1 and ring support 2.
Embodiment 2:
The adjustable buffer device of a kind of hopkinson test rod member, including door 1, ring support 2, rubber bar 3, backstop
Seat 4, base 6；Ring support 2 is hollow out ring support, is connected by reinforcement between itself and base 6, reinforcement
Coupled with base 6 by coupling nut 5.Coupling nut 5 is symmetrical about base center axis line, and ring support 2 is enclosed within
The interlude of rubber bar 3, rubber buffer rod 3 and ring support 2 interference fit, one end of rubber bar 3 is cased with door 1,
The other end contacts with the rear block seat 4 being connected on base 6, has gap between door 1 and ring support 2, wherein, after
Block seat 4 is connected by bolt with base 6.
Embodiment 3:
The adjustable buffer device of a kind of hopkinson test rod member, including door 1, ring support 2, rubber bar 3, backstop
Seat 4, base 6；Ring support 2 is annulus, is connected by reinforcement between itself and base 6, and reinforcement passes through
Coupling nut 5 couples with base 6.Coupling nut 5 is symmetrical about base center axis line, and ring support 2 is enclosed within rubber
The interlude of rod 3, rubber buffer rod 3 and ring support 2 interference fit, one end of rubber bar 3 is cased with door 1, separately
One end contacts with the rear block seat 4 being connected on base 6, has gap between door 1 and ring support 2, wherein, and backstop
Seat 4 is connected by welding with base 6.
Its operation principle is: combine Fig. 1, and this device absorbs impact complementary energy by rubber buffer rod 3, and fender pile 3 is installed
In ring support 2.By two stretching about the symmetrical coupling nut in axis, support 2 side 5, adjustment ring
Shape support 2 vertical position, and then regulated the position of fender pile 3.Coupling nut 5 is by ring support 2 and base 6
Couple.Door 1 is enclosed within rubber bar 3 head position, reduces impact pressure, it is to avoid in impact process, rubber bar 3 is directly subject to
Shock loading is damaged.It is spaced a small distance between door 1 and ring support 2, sends out when absorbing buffering complementary energy for rubber bar
The reserved required space of raw deformation.When buffering complementary energy is bigger, rear block seat 4 blocks the purpose that rubber bar reaches stable.
Wherein, the method for the vertical position adjusting ring support 2 is: if needing to heighten ring support 2, then need to twist
Pine coupling nut 5, removes ring support 2 and reinforcement, arranges pad between base 6 and reinforcement, then with coupling
Nut 5 fixes reinforcement；If needing to turn down ring support 2, need to remove pad.
Installation process it should be noted that, adjusting nut 5 is symmetrical about the axial location of support 2, it is therefore intended that symmetrical
The position of regulation support；Rubber bar 3 and support 4 interference fit, prevent from loosening and coming off, thus meet the requirement of test.
Claims (5)
1. the adjustable buffer device of a hopkinson test rod member, it is characterised in that include door (1), annular
Frame (2), rubber bar (3), rear block seat (4), base (6)；Ring support (2) is connected with base (6), annular
Support (2) is enclosed within the interlude of rubber bar (3), and one end of rubber bar (3) is cased with door (1), and the other end is with solid
Rear block seat (4) contact being connected on base (6), has gap between door (1) and ring support (2)；Wherein,
Being connected by reinforcement between ring support (2) and base (6), ring support (2) is annulus.
The adjustable buffer device of a kind of hopkinson test rod member the most according to claim 1, it is characterised in that
Described rubber bar (3) and ring support (2) interference fit.
The adjustable buffer device of a kind of hopkinson test rod member the most according to claim 1, it is characterised in that
Described rear block seat (4) is connected by welding with base (6).
The adjustable buffer device of a kind of hopkinson test rod member the most according to claim 1, it is characterised in that
Described reinforcement is coupled with base (6) by coupling nut (5).
The adjustable buffer device of a kind of hopkinson test rod member the most according to claim 4, it is characterised in that
Described coupling nut (5) is symmetrical about base center axis line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410029880.5A CN103760011B (en) | 2014-01-22 | 2014-01-22 | The adjustable buffer device of hopkinson test rod member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410029880.5A CN103760011B (en) | 2014-01-22 | 2014-01-22 | The adjustable buffer device of hopkinson test rod member |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103760011A CN103760011A (en) | 2014-04-30 |
| CN103760011B true CN103760011B (en) | 2016-09-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410029880.5A Expired - Fee Related CN103760011B (en) | 2014-01-22 | 2014-01-22 | The adjustable buffer device of hopkinson test rod member |
Country Status (1)
| Country | Link |
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| CN (1) | CN103760011B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106908312B (en) * | 2017-03-29 | 2019-04-19 | 西安近代化学研究所 | A kind of anti-incident bar recoiling device of Hopkinson bar test |
| CN107703009B (en) * | 2017-10-27 | 2020-05-05 | 河海大学 | Magnetic induction speed measurement and anti-incident rod recoil device for SHPB test |
| CN110057696B (en) * | 2018-12-18 | 2022-01-28 | 天津大学 | Take energy-absorbing device can simulate normal position stress environment's disconnect-type hopkinson depression bar |
| CN113607545B (en) * | 2021-08-17 | 2024-05-07 | 西北工业大学 | Single pulse separation type Hopkinson pull rod experimental device based on electromagnetic force loading |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0849583A1 (en) * | 1996-12-12 | 1998-06-24 | European Community | Split Hopkinson bar testing apparatus |
| CN202676558U (en) * | 2011-12-01 | 2013-01-16 | 中国兵器工业集团第五三研究所 | Hopkinson rod impact shearing experiment device |
| CN203101162U (en) * | 2012-12-25 | 2013-07-31 | 湖南科技大学 | Rapid-heating-type quasi-static high-temperature split Hopkinson pressure bar experiment device |
| CN203148798U (en) * | 2013-04-15 | 2013-08-21 | 北京理工大学 | Micro dynamic tension/compression test system with preloading function |
| CN203688346U (en) * | 2014-01-22 | 2014-07-02 | 南京理工大学 | Adjustable buffer device of hopkinson test rod piece |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3562637B2 (en) * | 2000-09-11 | 2004-09-08 | 住友ゴム工業株式会社 | Viscoelastic property value measuring device and viscoelastic property value measuring method |
| JP2006194595A (en) * | 2005-01-11 | 2006-07-27 | Jfe Techno Research Corp | Tensile test method and device |
-
2014
- 2014-01-22 CN CN201410029880.5A patent/CN103760011B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0849583A1 (en) * | 1996-12-12 | 1998-06-24 | European Community | Split Hopkinson bar testing apparatus |
| CN202676558U (en) * | 2011-12-01 | 2013-01-16 | 中国兵器工业集团第五三研究所 | Hopkinson rod impact shearing experiment device |
| CN203101162U (en) * | 2012-12-25 | 2013-07-31 | 湖南科技大学 | Rapid-heating-type quasi-static high-temperature split Hopkinson pressure bar experiment device |
| CN203148798U (en) * | 2013-04-15 | 2013-08-21 | 北京理工大学 | Micro dynamic tension/compression test system with preloading function |
| CN203688346U (en) * | 2014-01-22 | 2014-07-02 | 南京理工大学 | Adjustable buffer device of hopkinson test rod piece |
Non-Patent Citations (4)
| Title |
|---|
| Hopkinson压杆实验技术的应用发展;胡时胜;《实验力学》;20051231;第20卷(第4期);第589－594页 * |
| Improved Pulse Shaping to Achieve Constant Strain Rate and Stress Equilibrium in Split-Hopkinson Pressure Bar Testing;S. Kenneth et al.;《Metallurgical and Meterials Transactions A》;20071130;第38A卷;第2655－2665页 * |
| Numerical simulation and experimental study of a mechanism for Hopkinson bar test interruption;Essa Y. et al.;《journal of strain analysis for engineering design》;20071231;第42卷(第3期);第163－172页 * |
| 分离式Hopkinson压杆实验技术研究进展;陈荣 等;《力学进展》;20090925;第39卷(第5期);第576－587页 * |
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| CN103760011A (en) | 2014-04-30 |
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