CN106198190A - A kind of Hopkinson pressure bar experiment sample collection device - Google Patents
A kind of Hopkinson pressure bar experiment sample collection device Download PDFInfo
- Publication number
- CN106198190A CN106198190A CN201610529099.3A CN201610529099A CN106198190A CN 106198190 A CN106198190 A CN 106198190A CN 201610529099 A CN201610529099 A CN 201610529099A CN 106198190 A CN106198190 A CN 106198190A
- Authority
- CN
- China
- Prior art keywords
- sleeve
- pressure bar
- hopkinson pressure
- half sleeve
- lower half
- 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.)
- Pending
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
Abstract
The invention discloses a kind of Hopkinson pressure bar experiment sample collection device, including sleeve, it it is cylindrical drum in the middle part of sleeve, cylindrical drum two ends are conically shaped, conically shaped tapered end is outwardly and cone mouth size matches with incident bar or the transmission bar outside dimension of Hopkinson pressure bar experiment, sleeve includes upper half sleeve and the lower half sleeve being oppositely arranged, upper half sleeve outer wall is provided with multiple L-type sliding lock spaced apart near opposite surface, and lower half sleeve outer wall is provided with multiple snap close matched with L-type sliding lock near opposite surface；Sleeve outer wall bottom is provided with slide plate, and sleeve is slidably mounted on base, and base is provided with the chute matched with slide plate.Apparatus of the present invention novel in structural design, it is possible to integrate restriction, collect and shift destruction thing, it is possible to adapt to different requirement of experiment, there is easy accessibility, simple to operate, the advantages such as coordination of arranging in pairs or groups with Hopkinson pressure bar.
Description
Technical field:
The present invention relates to the dynamic mechanical test equipment technical field of material, particularly relate to a kind of Hopkinson pressure bar experiment
Sample collection device.
Background technology:
Split hopkinson press bar experimental technique is the mechanical property reality main, most reliable of material under high-elastic speed in research
Proved recipe method, is the important component part of blast and shock dynamics experimental technique.Hopkinson bar is utilized to be possible not only to realize height
Uniaxial tension under bullet speed, compress, shear loading, and there have been developed complexity such as dynamically pressing-cut Combined Loading, active and passive confined pressure
Loading, and speed of being hit by a bullet loads, the application actual for the reach of science and engineering all plays very important effect.
Split hopkinson press bar experiment test system is generally by incident bar, transmission bar, absorbing rod and buffer unit
Composition, its operation principle is mainly high-speed single hull and incident bar collision rift, and incident bar is by being clipped between incident bar and transmission bar
Sample impact force is delivered on transmission bar, then by the shock of transmission bar and absorbing rod, be delivered on absorbing rod, finally pass
It is delivered on buffer unit.
Sample can produce damage after by the impact load, and impact load varies in size and can cause sample damage-form
Difference, damage-form common for rock sample has cracking, fragment or powder, rock sample destroy during produce
Fragment and chip radially can make high-speed motion along pole, go to control without corresponding device, then can be to neighbouring experiment people
Member's safety constitutes injury, destroys thing simultaneously and flies everywhere, and cleaning is got up the most bothersome.Particularly special experiment is wanted
Ask, need destruction thing collects its quality of title or sieves its grating, it is therefore desirable to have corresponding device to collect and shift
Destroy sample.
Method more typically is at one block of thick cloth of sample upper cover or carton, and a carton, so easy dress are put in lower section
Put the above-mentioned problem that can solve in the case of impact load is less, but for impact load bigger in the case of then there will be
Cloth is rushed outbound situation.Patents also designed corresponding device and goes to solve above-mentioned problem, it is possible to effectively limit
The scope that flies of impact fragment, and can effectively collect impact fragment, ensure the safety of experimenter simultaneously.But some
Practical problem does not consider, does not the most design corresponding device and goes to solve.
For the accuracy of confirmatory experiment result, some experiment needs to stick foil gauge and Hopkinson pressure on sample
Bar test result contrasts, and this needs exist for wire one end and is connected with sample, and the other end is connected with extraneous instrument, therefore it is required that
Wire can pass device, and relevant invention does not propose a solution；For needing close-ups sample to destroy
Situation, it is thus achieved that high-speed photography clearly, this just requires that apparatus body type is not too big, and is transparent, otherwise because distance and
The reason of material can cause image unintelligible, and the device of relevant invention is mostly in box, and build is bigger；Hopkinson pressure
The incident bar of bar and transmission bar quality are very big, the particularly pole of major diameter, move very laborious, the dress of relevant invention
Put mostly in box, and build be bigger, it usually needs put again after first device being fixed on Hopkinson bearing incident bar and
Transmission bar；In Hopkinson pressure bar experiment, after the sample of the relatively stiff materials such as concrete, rock has been done several times, incident bar and
Can produce dislocation between transmission bar, need again to harmonize pole, it is therefore an objective to makes two pole end face alignment, does not leave seam as far as possible
Gap, to ensure experimental result accuracy.To whether to have gap during pole at end contact from the point of view of all directions or judge seam
The size of gap, thus the corresponding bolt on the bearing under regulating pole, this just requires that the circumference of pole is to having foot
Enough large-scale visual angles.But, the device of relevant invention is made up of three parts mostly, top, bottom and bearing, and bottom leads to
Often being structure as a whole with bearing, visual angle now is less than 180 °, it is impossible to judge the gap situation under remaining visual angle；For above
The experiment having particular/special requirement mentioned, needs destruction thing collects its quality of title or sieves its grating, general this kind of destruction
Thing is all filled (such as dixie cup) by less container.The device of relevant invention only considers to limit flying and receiving of impact fragment
Collection destroy thing, and do not account for collect after destruction thing how to transfer in cell therefor, even if be also required to by
Other instruments coordinated.
Summary of the invention:
In order to make up the deficiency of prior art problem, it is an object of the invention to provide a kind of Hopkinson pressure bar experiment sample collection
Device, this apparatus structure is reasonable in design, it is possible to integrates restriction, collect and shift destruction thing, it is possible to adapts to different realities
Test requirement, there is easy accessibility, simple to operate, the advantages such as coordination of arranging in pairs or groups with Hopkinson pressure bar.
Technical scheme is as follows:
Hopkinson pressure bar experiment sample collection device, it is characterised in that include sleeve, is cylindrical drum in the middle part of sleeve, cylindrical drum
Two ends are conically shaped, and conically shaped tapered end is outwardly and the incident bar of cone mouth size and Hopkinson pressure bar experiment or transmission bar outer diameter ruler
Very little matching, sleeve includes upper half sleeve and the lower half sleeve being oppositely arranged, and upper half sleeve outer wall is provided with multiple near opposite surface
L-type sliding lock spaced apart, lower half sleeve outer wall is provided with multiple snap close matched with L-type sliding lock near opposite surface；
Described sleeve outer wall bottom is provided with slide plate, sleeve is slidably mounted on base, and base is provided with and matches with slide plate
Chute.
Described Hopkinson pressure bar experiment sample collection device, it is characterised in that the involutory surface of described lower half sleeve
On offer Wire channel in building, Wire channel in building is positioned in cylinder barrel segment, and Wire channel in building is near cylinder barrel segment and conically shaped section joint, right side.
Described Hopkinson pressure bar experiment sample collection device, it is characterised in that described slide plate with lower half sleeve is
It is integrally machined molding.
Described Hopkinson pressure bar experiment sample collection device, it is characterised in that: described base lower surface is provided with one
The gripper shoe of molding, base is suspended, is front and back interval with fixing hole in the gripper shoe of both sides by gripper shoe.
The invention have the advantage that
1, sample collection device of the present invention includes that sleeve and base, upper half sleeve and lower half sleeve two parts are independent of one another, passes through
Connect and form entirety, it is not necessary to mobile rod member, time saving and energy saving；Installing sample to have only to remove upper half sleeve, base is all the time
It is in stationary state；
2, upper half sleeve L-type sliding lock of the present invention and lower half sleeve snap close are interlocked and realize sleeve locking；Upper half sleeve L-type sliding lock with
Lower half sleeve snap close uses the dynamic mode coordinated to be combined, and can realize conveniently and efficiently tightly locking and unblanking, it is adaptable to repeat
The Hopkinson pressure bar experiment of property；
3, in the middle part of sleeve of the present invention being cylindrical drum, cylindrical drum two ends are conically shaped, are possible to prevent sample axial along bar after disruption
Fly out；
Cylindrical drum, cylindrical drum two ends are conically shaped, and in the case of sample collection is had particular/special requirement, internal diameter is broad in the middle small in ends
Funnel-form cavity will assist in be poured in more small-bore container destroying thing；
Cylindrical drum, cylindrical drum two ends are conically shaped, additionally can reduce inner space, facilitate close-ups sample to destroy
Situation, it is thus achieved that high-speed photography effect clearly, saves material simultaneously, good, outward with columned incident bar and transmission bar harmony
Shape is the most attractive in appearance；
4, offering Wire channel in building on the involutory surface of lower half sleeve of the present invention, wire is worn in Wire channel in building by experimental needs
Crossing, do not affect the combination of upper cartridge and bottom, Wire channel in building is positioned in cylinder barrel segment, near cylinder barrel segment and right side conically shaped
Section joint, is possible to prevent to destroy thing and flies out from notch；
5, sleeve of the present invention is slidably mounted on base, sleeve glide direction and the incident bar of Hopkinson pressure bar experiment or transmission
Bar is axially consistent, after floor installation is fixing, it is only necessary to move axially lower half sleeve along incident bar or transmission bar and achieve that and the end
The combination of seat with separate, convenient will destroy thing transfer；
Accompanying drawing illustrates:
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the front view before the present invention coordinates.
Fig. 3 is the front view after the present invention coordinates.
Fig. 4 is the side view before the present invention coordinates.
Fig. 5 is the side view before the present invention coordinates.
Fig. 6 is the structural representation before the collection of the present invention.
Fig. 7 is the structural representation after the collection of the present invention.
Detailed description of the invention:
See accompanying drawing:
Hopkinson pressure bar experiment sample collection device, including sleeve 1, is cylindrical drum in the middle part of sleeve 1, and cylindrical drum two ends are taper
Cylinder, conically shaped tapered end is outwardly and cone mouth size matches with incident bar or the transmission bar outside dimension of Hopkinson pressure bar experiment,
Sleeve 1 includes upper half sleeve 1-1 and the lower half sleeve 1-2 being oppositely arranged, and upper half sleeve 1-1 outer wall is provided with multiple near opposite surface
L-type sliding lock 1-3 spaced apart, lower half sleeve 1-2 outer wall is provided with multiple snap close matched with L-type sliding lock near opposite surface
1-4；
Sleeve 1 outer wall bottom is provided with slide plate 1-5, sleeve 1 is slidably mounted on base 2, and base 2 is provided with and matches with slide plate
Chute 2-1.
Offer Wire channel in building 1-6, Wire channel in building 1-6 on the involutory surface of lower half sleeve 1-2 to be positioned in cylinder barrel segment, Wire channel in building 1-
6 near cylinder barrel segment and conically shaped section joint, right side.
Slide plate 1-5 and lower half sleeve 1-2 is integrated machine-shaping.
Base 2 lower surface is provided with integrated gripper shoe 2-2, and base is suspended by gripper shoe 2-2, the support of both sides front and back
Fixing hole 2-3 it is interval with on plate.
Specific works process of the present invention:
First Hopkinson pressure bar is arranged on corresponding bearing, then mixes up pole, the good and sound sample 4 posting foil gauge 5, give
Incident bar and transmission bar 3 pressure, compress sample；Tailing edge be perpendicular to pole length and the direction below sample by base 2
It is placed on hopkinson test bearing, constitutes draw-in groove between gripper shoe 2-2 of base 2 and fit with hopkinson test bearing,
Move base 2 along pole length direction afterwards so that it is approximate centre is positioned at the lower section of sample, screw base 2 both sides fixing hole
Bolt at 2-3 is until fastening, and now base 2 is fixed on hopkinson test bearing.
By lower half sleeve 1-2 from the lower end of pole, along pole direction by the combination of slide plate 1-5 and chute 2-1 and base 2
Connect, move lower half sleeve 1-2 along pole length direction afterwards, make slide plate 1-5 and chute 2-1 along pole length direction
Two ends flush, passes the Wire channel in building 1-6 of lower half sleeve 1-2 subsequently by the wire 6 on sample.
Upper half sleeve 1-1 is somewhat placed on lower half sleeve 1-2 toward right avertence one segment distance, then along pole length direction
It is moved to the left upper half sleeve 1-1 until L-type sliding lock 1-3 and snap close 1-4 combines closely, now upper half sleeve 1-1 and lower half sleeve
1-2 two ends flush.
Starting Hopkinson pressure bar experiment, sample is broken to fragment, chip or powder under by the impact load effect.Real
After testing end, first upper half sleeve 1-1 is moved right upper half sleeve 1-1 until L-type sliding lock 1-3 then along pole length direction
It is separated with snap close 1-4, then takes upper half sleeve 1-1 away；Then clear up on the chip on wire and two pole end faces
Chip, is all placed on chip in the cavity of lower half sleeve 1-2, removes wire afterwards；Then by lower half sleeve 1-2 along pole
Length direction moves (to the left or to the right), until the slide plate 1-5 of lower half sleeve 1-2 takes off with the chute 2-1 phase on base 2
From, then from laterally being taken out by lower half sleeve 1-2, pour the destruction sample after test into corresponding container along funnelform cavity
In.So operation terminates, and can test next time.
The present invention is described in detail in conjunction with above concrete example, associated improvement and modification are also fallen into
In the protection domain of the claims in the present invention.
Claims (4)
1. a Hopkinson pressure bar experiment sample collection device, it is characterised in that include sleeve, is cylindrical drum in the middle part of sleeve,
Cylindrical drum two ends are conically shaped, and conically shaped tapered end is outwardly and the incident bar of cone mouth size and Hopkinson pressure bar experiment or transmission bar
Outside dimension matches, and sleeve includes upper half sleeve and the lower half sleeve being oppositely arranged, and upper half sleeve outer wall sets near opposite surface
Having multiple L-type sliding lock spaced apart, lower half sleeve outer wall is provided with multiple lock matched with L-type sliding lock near opposite surface
Button；
Described sleeve outer wall bottom is provided with slide plate, sleeve is slidably mounted on base, and base is provided with and matches with slide plate
Chute.
Hopkinson pressure bar experiment sample collection device the most according to claim 1, it is characterised in that described lower half set
Offering Wire channel in building on the involutory surface of cylinder, Wire channel in building is positioned in cylinder barrel segment, and Wire channel in building is near cylinder barrel segment and right side conically shaped
Section joint.
Hopkinson pressure bar experiment sample collection device the most according to claim 1, it is characterised in that described slide plate with
Lower half sleeve is integrated machine-shaping.
Hopkinson pressure bar experiment sample collection device the most according to claim 1, it is characterised in that: described base lower end
Face is provided with integrated gripper shoe, and base is suspended by gripper shoe, is front and back interval with fixing hole in the gripper shoe of both sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610529099.3A CN106198190A (en) | 2016-07-06 | 2016-07-06 | A kind of Hopkinson pressure bar experiment sample collection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610529099.3A CN106198190A (en) | 2016-07-06 | 2016-07-06 | A kind of Hopkinson pressure bar experiment sample collection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106198190A true CN106198190A (en) | 2016-12-07 |
Family
ID=57465741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610529099.3A Pending CN106198190A (en) | 2016-07-06 | 2016-07-06 | A kind of Hopkinson pressure bar experiment sample collection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106198190A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106644697A (en) * | 2017-03-24 | 2017-05-10 | 安徽理工大学 | Apparatus for collecting and screening frozen soil fragments in Hopkinson test |
| CN107024382A (en) * | 2017-06-16 | 2017-08-08 | 广东工业大学 | The servicing unit of Hopkinson pressure bar device |
| CN107505189A (en) * | 2017-09-30 | 2017-12-22 | 安徽理工大学 | Integrated device is collected in a kind of support and protection and fragment for Hopkinson experiment |
| CN107643210A (en) * | 2017-11-02 | 2018-01-30 | 华北理工大学 | Collection device and application method after Hopkinson pressure bar test rock is broken |
| CN108267361A (en) * | 2018-01-25 | 2018-07-10 | 无锡职业技术学院 | A kind of clamshell Hopkinson pressure bar test specimen collection device |
| CN109323919A (en) * | 2018-11-21 | 2019-02-12 | 浙江大学 | A kind of split hopkinson press bar positioning device suitable for more size test specimens |
| CN111157371A (en) * | 2020-01-06 | 2020-05-15 | 湘潭大学 | Multi-functional disconnect-type Hopkinson depression bar experiment sample recovery unit |
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| CN102288497A (en) * | 2011-07-07 | 2011-12-21 | 中国人民解放军空军工程大学 | Heating device for Hopkinson pressure bar test |
| CN202471505U (en) * | 2012-02-16 | 2012-10-03 | 安徽理工大学 | Protection and specimen bracket mechanism for hopkinson pressure bar test device |
| CN103018094A (en) * | 2012-12-25 | 2013-04-03 | 湖南科技大学 | Device for rapid-heating quasi-static high-temperature Hopkinson pressure bar experiment |
| CN103471906A (en) * | 2013-08-24 | 2013-12-25 | 中国人民解放军陆军军官学院 | Retaining ring used for preventing rod piece from moving outwards during Hopkinson pressure bar confining pressure test |
| CN204536107U (en) * | 2015-04-17 | 2015-08-05 | 安徽理工大学 | A kind of Hopkinson pressure bar test fragment is collected and protective device |
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| CN105445093A (en) * | 2015-12-17 | 2016-03-30 | 安徽理工大学 | Gradienter for split-Hopkinson-pressure-bar splitting test piece |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106644697A (en) * | 2017-03-24 | 2017-05-10 | 安徽理工大学 | Apparatus for collecting and screening frozen soil fragments in Hopkinson test |
| CN107024382A (en) * | 2017-06-16 | 2017-08-08 | 广东工业大学 | The servicing unit of Hopkinson pressure bar device |
| CN107024382B (en) * | 2017-06-16 | 2023-11-14 | 广东工业大学 | Auxiliary device of Hopkinson pressure bar device |
| CN107505189A (en) * | 2017-09-30 | 2017-12-22 | 安徽理工大学 | Integrated device is collected in a kind of support and protection and fragment for Hopkinson experiment |
| CN107505189B (en) * | 2017-09-30 | 2020-08-11 | 安徽理工大学 | A support and protection and fragment collect integrative device for hopkinson experiment |
| CN107643210A (en) * | 2017-11-02 | 2018-01-30 | 华北理工大学 | Collection device and application method after Hopkinson pressure bar test rock is broken |
| CN108267361A (en) * | 2018-01-25 | 2018-07-10 | 无锡职业技术学院 | A kind of clamshell Hopkinson pressure bar test specimen collection device |
| CN109323919A (en) * | 2018-11-21 | 2019-02-12 | 浙江大学 | A kind of split hopkinson press bar positioning device suitable for more size test specimens |
| CN109323919B (en) * | 2018-11-21 | 2023-12-29 | 浙江大学 | Separated Hopkinson pressure bar positioning device suitable for multi-size test piece |
| CN111157371A (en) * | 2020-01-06 | 2020-05-15 | 湘潭大学 | Multi-functional disconnect-type Hopkinson depression bar experiment sample recovery unit |
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Application publication date: 20161207 |