CN103499486A - Force applying ring clamping device for Hopkinson pressure bar - Google Patents
Force applying ring clamping device for Hopkinson pressure bar Download PDFInfo
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- CN103499486A CN103499486A CN201310471922.6A CN201310471922A CN103499486A CN 103499486 A CN103499486 A CN 103499486A CN 201310471922 A CN201310471922 A CN 201310471922A CN 103499486 A CN103499486 A CN 103499486A
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Abstract
The invention relates to a force applying ring clamping device for a Hopkinson pressure bar, and particularly relates to a force applying ring clamping device for a Hopkinson pressure bar. The force applying ring clamping device for the Hopkinson pressure bar comprises a bearing tube (11), a tubular force measuring device (12), a force applying ring (13) and an impact sheet material (17), wherein one end of the force measuring device (12) is fixedly connected with the bearing tube (11), and the other end of the force measuring device (12) is in butt joint with the force applying ring (13); strain gauges (15) are pasted on the force measuring device (12); clamping hooks (18) capable of being pulled up and down are uniformly distributed on the circumference close to one end of the force applying ring (13) along the force measuring device (12), and are of L shapes, so that the clamping hooks can fasten the force measuring device (12) and the force applying ring (13) together after being pulled downward. Compared with the traditional fixing mode by utilizing threaded screws, the force applying ring clamping device disclosed by the invention has the advantages that the force measuring device and the force applying ring are connected more conveniently and rapidly and can be separated easily, so that the experiment process is rapider and more efficient.
Description
Technical field
The present invention relates to a kind of application of force ring stationary installation of Hopkinson pressure bar, particularly a kind of ring of the application of force for Hopkinson pressure bar clamping close device.
Background technology
Most of materials are at the LOADING RATES or the strain rate sensitivity that all show aspect the mechanical properties such as intensity to a certain degree, the strain rate effect of the short duration pulse of high amplitude and the caused mechaanical property of materials of load, structural design and analysis for anti-dynamic load are very important, these dynamic loads are from conventional weapon penetration and blast, many military and civilian events such as occasional burst and high-speed impact, Hopkinson bar is acknowledged as the most frequently used experimental facilities of the most effectively studying the mechaanical property of materials under the pulse Under Dynamic Load, it is not only applicable to compression test, can also successfully be stretched, shear and friction-wear test, and can expand to and there is acceleration, power and pressure sensor calibrating function.When using Hopkinson pressure bar to carry out frictional wear experiment, its device for measuring force need to be docked with application of force ring, and be fixed together, make the every data on application of force ring can be transferred to smoothly on the foil gauge of device for measuring force, traditional Hopkinson pressure bar is all to use screw bolt that device for measuring force and application of force ring directly are fixed together, although this fixed form is very firm, but tear open very difficult, once test complete forget take apart easily cause bolt to get rusty, the phenomenon such as be difficult to turn, use very inconvenience.
Summary of the invention
In order to solve the problems of the technologies described above, the invention provides a kind of application of force ring clamping close device of the Hopkinson pressure bar conveniently be fixed.
The present invention solves the problems of the technologies described above adopted technical scheme to be: a kind of ring of the application of force for Hopkinson pressure bar clamping close device, comprise device for measuring force, the application of force ring of carrying pipe, tubulose and impact sheet material, device for measuring force one end is fixedly connected with the carrying pipe, the other end docks with application of force ring, post foil gauge on device for measuring force, be evenly equipped with a plurality of snap fits that can pull up and down on circumference along device for measuring force near an end of application of force ring, snap fit is L-type, after making and being hooked in and pulling downwards, device for measuring force and application of force ring can be tightened together.
The carrying pipe is accepted the impulsive force in experimentation, device for measuring force one end of tubulose is fixedly connected with the carrying pipe, the other end docks with application of force ring, reception comes from the rubbing wear data-signal of application of force ring, be evenly equipped with a plurality of snap fits that can pull up and down on circumference along device for measuring force near an end of application of force ring, snap fit is L-type, after making and being hooked in and pulling downwards, device for measuring force and application of force ring can be tightened together, make device for measuring force more quick and easy with docking of application of force ring, also be convenient to the fractionation of the two simultaneously.
In use, foil gauge is connected with ppu, when experiment, experiment material is located at the both sides of application of force ring, impacts sheet material and is stuck between experiment material, impacts the high speed impact that sheet material is accepted bullet, with experiment material generation high-speed friction, and by the related information transmission that produces in experimentation to the foil gauge of device for measuring force, transfer to afterwards ppu analyzed, thereby draw the experimental data needed.
Beneficial effect: a kind of ring of the application of force for Hopkinson pressure bar of the present invention clamping close device adopts the snap fit that is evenly equipped with a plurality of L-types that can pull up and down on the circumference near an end of application of force ring along device for measuring force, realize device for measuring force and the fastening of application of force ring and separate by the mode of pulling snap fit, with the fixed form of traditional use threaded screw, compare, the invention enables device for measuring force and being connected of application of force ring more convenient, quick, also make the two more easily separate simultaneously, make experimentation more rapid efficient.
The accompanying drawing explanation
Fig. 1 is one-piece construction schematic diagram of the present invention.
Mark in figure: 11, carrying pipe, 12, device for measuring force, 13, application of force ring, 14, bullet, 15, foil gauge, 16, experiment material, 17, impact sheet material, 18, snap fit.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described: a kind of ring of the application of force for Hopkinson pressure bar clamping close device, comprise carrying pipe 11, device for measuring force 12, application of force ring 13 and impact sheet material 17, carrying pipe 11 is fixedly connected with the device for measuring force 12 of tubulose, post foil gauge 15 on device for measuring force 12, the other end of device for measuring force 12 docks with application of force ring 13, for the docking that guarantees the two more firm, be convenient to again dismounting simultaneously, the special device for measuring force at tubulose 12 is near on the circumference of application of force ring 13 1 ends, being provided with a plurality of snap fits 18, snap fit 18 is L-type, while pulling downwards, make its bending-like front end catch tightly application of force ring 13, thereby device for measuring force 12 and application of force ring 13 are fixed together, when complete the two need being separated carried out in experiment, can upwards pull snap fit 18, it is unclamped gets final product, experiment material 16 is located at application of force ring 13 both sides inwalls, impacting sheet material 17 is stuck between experiment material 16, impact the impact of sheet material 17 away from an end carrying bullet 14 of application of force ring 13, receive after its power and experiment material 16 high-speed friction, the foil gauge 15 be arranged on device for measuring force 12 is recorded the parameters of friction process and is transmitted it to outside processor, analysis draws desired data, can complete frictional wear experiment one time.
The present invention does not narrate part, as the source of the gas of Hopkinson pressure bar, emission cavity, bullet, guide rail and for the foil gauge of measuring the rubbing wear data etc., is prior art, sets forth no longer one by one.
Claims (3)
1. the ring of the application of force for a Hopkinson pressure bar clamping close device, comprise carrying pipe (11), the device for measuring force of tubulose (12), application of force ring (13) and impact sheet material (17), device for measuring force (12) one ends are fixedly connected with carrying pipe (11), the other end docks with application of force ring (13), post foil gauge (15) on device for measuring force (12), it is characterized in that: on the circumference along device for measuring force (12) near an end of application of force ring (13), be evenly equipped with a plurality of snap fits that can pull up and down (18), snap fit (18) is L-type, after making and being hooked in and pulling downwards, device for measuring force (12) and application of force ring (13) can be tightened together.
2. a kind of ring of the application of force for Hopkinson pressure bar clamping close device as claimed in claim 1, it is characterized in that: experiment material (16) is located at the both sides of application of force ring (13), impacts sheet material (17) and is stuck between experiment material (16).
3. a kind of ring of the application of force for Hopkinson pressure bar clamping close device as claimed in claim 1, it is characterized in that: described foil gauge (15) is connected with ppu.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310471922.6A CN103499486A (en) | 2013-10-11 | 2013-10-11 | Force applying ring clamping device for Hopkinson pressure bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310471922.6A CN103499486A (en) | 2013-10-11 | 2013-10-11 | Force applying ring clamping device for Hopkinson pressure bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103499486A true CN103499486A (en) | 2014-01-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310471922.6A Pending CN103499486A (en) | 2013-10-11 | 2013-10-11 | Force applying ring clamping device for Hopkinson pressure bar |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105300792A (en) * | 2015-11-18 | 2016-02-03 | 太原理工大学 | Clamping device of Hopkinson pull bar test-piece and experimental method |
| CN106996895A (en) * | 2017-05-04 | 2017-08-01 | 东北大学 | The experimental provision of concrete dynamic shear strength is calculated using Hopkinson pressure bar |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202145186U (en) * | 2011-07-07 | 2012-02-15 | 中国人民解放军空军工程大学 | Incident wave reshaping mechanism for active ambient pressure SHPB (split hopkinson pressure bar) test |
| CN102644107A (en) * | 2012-04-20 | 2012-08-22 | 上海汉虹精密机械有限公司 | Polycrystal furnace chamber buckling device |
| CN203148775U (en) * | 2013-03-26 | 2013-08-21 | 河南科技大学 | Abraded sample positioning device of Hopkinson pressure bar |
| CN203519409U (en) * | 2013-10-11 | 2014-04-02 | 河南科技大学 | Force application ring engagement device for Hopkinson pressure bar |
-
2013
- 2013-10-11 CN CN201310471922.6A patent/CN103499486A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202145186U (en) * | 2011-07-07 | 2012-02-15 | 中国人民解放军空军工程大学 | Incident wave reshaping mechanism for active ambient pressure SHPB (split hopkinson pressure bar) test |
| CN102644107A (en) * | 2012-04-20 | 2012-08-22 | 上海汉虹精密机械有限公司 | Polycrystal furnace chamber buckling device |
| CN203148775U (en) * | 2013-03-26 | 2013-08-21 | 河南科技大学 | Abraded sample positioning device of Hopkinson pressure bar |
| CN203519409U (en) * | 2013-10-11 | 2014-04-02 | 河南科技大学 | Force application ring engagement device for Hopkinson pressure bar |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105300792A (en) * | 2015-11-18 | 2016-02-03 | 太原理工大学 | Clamping device of Hopkinson pull bar test-piece and experimental method |
| CN106996895A (en) * | 2017-05-04 | 2017-08-01 | 东北大学 | The experimental provision of concrete dynamic shear strength is calculated using Hopkinson pressure bar |
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Application publication date: 20140108 |