CN203405374U - Supporting and radial adjusting positioning device of split Hopkinson bar - Google Patents
Supporting and radial adjusting positioning device of split Hopkinson bar Download PDFInfo
- Publication number
- CN203405374U CN203405374U CN201320491072.1U CN201320491072U CN203405374U CN 203405374 U CN203405374 U CN 203405374U CN 201320491072 U CN201320491072 U CN 201320491072U CN 203405374 U CN203405374 U CN 203405374U
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- Prior art keywords
- guide rail
- split hopkinson
- hopkinson bar
- locating device
- bar
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Abstract
The utility model provides a supporting and radial adjusting positioning device of a split Hopkinson bar and relates to the field of material mechanical property experimental facilities. The supporting and radial adjusting positioning device solves the problems that systems in the prior art do not have a unified datum reference and the positioning precision is not high. The supporting and radial adjusting positioning device of the split Hopkinson bar mainly comprises a guide rail and a center support capable of moving along the guide rail. The lower end of the center support is arranged on the guide rail through a sliding seat. The center support comprises an upper support body and a lower support body, wherein the upper support body and the lower support body can be opened and closed. Adjustable screw driving and reversing mechanisms are symmetrically arranged on the lower support body. Idler wheels are arranged at the front ends of the screw driving and reversing mechanisms, and the idler wheels can be continuously adjusted through the screw driving and reversing mechanisms. The guide rail and the center support of the supporting and radial adjusting positioning device of the split Hopkinson bar have unified horizontal and lateral datum references, the positioning precision is high, and horizontal moving of a bar system can be prevented in the striking process. The screw driving and reversing mechanisms can adjust the positions of the idler wheels and can support and adjust bar systems with different bar diameters, and therefore the requirement for various transmitting devices with different bar diameters of a laboratory is met.
Description
Technical field:
The utility model relates to In Dynamic Testing of Materials apparatus field, relates in particular to a kind of split hopkinson bar supporting and radially adjusts locating device.
Background technology:
Split hopkinson bar is a kind of effective experimental provision of studying material dynamic mechanical performance under one-dimensional stress state.Since Kolsky in 1949 invents it and studied the existing a lot of improvement of this experimental provision since material dynamic mechanical performance under one-dimensional stress state with it, experimental technique improves constantly.Its application from the dynamic mechanical of original research metal material till now can study of rocks, the dynamic mechanical of the multiple material such as concrete, pottery, superpolymer, energetic material, foamed material; In addition, it is also used to study dynamic response and the destruction problem of some structures.But still there are many weak points.These weak points have affected further developing and applying of it.The weak point existing mainly contains:
1. system does not have unified positioning datum, and positioning precision is not high, causes leverage right alignment not high, easily causes the poor repeatability of rod bending, waveform distortion, test etc. in test.
2. existing split hopkinson bar device is substantially all that an emitter is only applicable to a kind of bar footpath, and in this case, a laboratory often needs a plurality of different bars footpath emitters and support system, causes the waste of space and resource.Professor Lu Fangyun of the National University of Defense technology notices this point, be developed into diameter can be within the scope of 20-50mm continuously adjustable split hopkinson bar device, but its setting range is still limited, and support system can not change continuously along with the variation in bar footpath.
3. existing split hopkinson bar device does not have unified positioning datum, Chinese University of Science and Technology's summer source penetrating judgment is awarded and has been built approximately 4 meters of long benchmark, but emitter and leverage be not still on unified benchmark, and the heavy top that is the short cylindrical shape by a hollow to the support of bar is realized, be unfavorable for the contingent transverse movement when the process of strike of anti-stopping bar.
4. existing split hopkinson bar device support system roughly has V-shaped groove shape, linear bearing shape and rolling stock shape etc., and V-shaped groove oblique crank Z is too large to sliding resistance; Linear bearing exists that specification is limited, dismounting inconvenience and be easy to the problems such as destruction, can not adapt to the continuously adjustable needs in bar footpath, and rolling stock shape positioning precision is still not high enough.
Utility model content:
The purpose of this utility model is to provide a kind of split hopkinson bar supporting and radially adjusts locating device, to solve system in prior art, there is no unified positioning datum, the problem that positioning precision is not high.
For achieving the above object, the technical solution adopted in the utility model is:
Support and radially adjust a locating device, it is characterized in that: mainly comprise guide rail, and the center bearing bracket that can move along guide rail, described center bearing bracket lower end is placed on guide rail by slide.
Described center bearing bracket comprises upper frame and lower frame that can folding, is arranged with adjustable spiral driving and reversing mechanism on described lower frame, and spiral driving and reversing mechanism front end is provided with roller, and roller can regulate continuously by spiral driving and reversing mechanism.
On described lower frame, screw in and have the locking pin vertical with spiral driving and reversing mechanism, after roller regulates, can spiral driving and reversing mechanism be locked by locking pin, thereby the position of pair roller is fixed.
Described center bearing bracket at least arranges two spiral driving and reversing mechanisms, can realize two dimension and adjusts and accurately locate.
Described upper frame and lower frame one end are connected through the hinge, and the other end connects by securing member.
On described upper frame, be also provided with adjustable spiral driving and reversing mechanism.
The tangential direction that described roller rolls is parallel with guide rail direction, and center bearing bracket can be free to slide along guide rail.
Described guide rail is as a whole, or is formed by connecting by many short lead rail, and length can be set as required.
After securing member unclamps, upper frame and lower frame can be opened, after split hopkinson bar system packs into, merge upper frame and lower frame, and fix by securing member, split hopkinson bar system passes through roller supporting, can also regulate by spiral driving and reversing mechanism, be applicable to different bar footpaths.
Guide rail of the present utility model and center bearing bracket have unified level and side direction benchmark, and positioning precision is high, can prevent leverage generation transverse movement in strike process; The position of spiral driving and reversing mechanism adjustable roller, can support and regulate the leverage in different bar footpaths, thereby meets the needs of the multiple different bars of laboratory needs footpath emitter; Between leverage and center bearing bracket, from original sliding friction, become rolling friction, greatly reduced friction force.
Accompanying drawing explanation:
Fig. 1 is the structural representation of a kind of embodiment of the utility model;
Fig. 2 is the structural representation of another embodiment of the utility model.
1. slides wherein; 2. guide rail; 3. center bearing bracket; 31. rollers; 32. upper frames; 33. lower frames; 34. locking pins; 35. spiral driving and reversing mechanisms; 36. securing members.
Embodiment:
For technological means, creation characteristic that the utility model is realized, reach object with effect is easy to understand, below in conjunction with specifically illustrating and specific embodiment, further set forth the utility model, but be not for limiting protection domain of the present utility model.
Embodiment mono-
Please refer to Fig. 1, a kind of split hopkinson bar supports and radially adjusts locating device, mainly comprises guide rail 2, and the center bearing bracket 3 that can move along guide rail 2, and center bearing bracket 3 lower ends are placed on guide rail 2 by slide 1, center bearing bracket 3 comprises upper frame 32 and lower frame 33 that can folding, on lower frame 33, be arranged with adjustable spiral driving and reversing mechanism 35, spiral driving and reversing mechanism 35 front ends are provided with roller 31, roller 31 can regulate continuously by spiral driving and reversing mechanism 35, on lower frame 33, screw in and have the locking pin vertical with spiral driving and reversing mechanism 35 34, after roller 31 regulates, can be by locking pin 34 by 35 lockings of spiral driving and reversing mechanism, thereby the position of pair roller 31 is fixed, spiral driving and reversing mechanism 35 at least arranges two, can realize two dimension adjusts and accurately locates, upper frame 32 is connected through the hinge with lower frame 33 one end, the other end connects by securing member 36.
After securing member 36 unclamps, upper frame 32 and lower frame 33 can be opened, after split hopkinson bar system packs into, merge upper frame 32 and lower frame 33, and fixing by securing member 36, split hopkinson bar system supports by roller 31, can also regulate by spiral driving and reversing mechanism 35, is applicable to different bar footpaths.
Embodiment bis-
Please refer to Fig. 2, a kind of split hopkinson bar supports and radially adjusts locating device, mainly comprises guide rail 2, and the center bearing bracket 3 that can move along guide rail 2, and center bearing bracket 3 lower ends are placed on guide rail 2 by slide 1; Center bearing bracket 3 comprises upper frame 32 and lower frame 33 that can folding, on lower frame 33, be arranged with adjustable spiral driving and reversing mechanism 35, spiral driving and reversing mechanism 35 front ends are provided with roller 31, and roller 31 can regulate continuously by spiral driving and reversing mechanism 35, are applicable to different bar footpaths.
More than show and described ultimate principle of the present utility model, principal character and advantage of the present utility model.It is only embodiment of the present utility model; but protection domain of the present utility model is not limited to this; any those of ordinary skill in the art are in the disclosed technical scope of the utility model, and the variation that can expect easily or replacement, within all should being encompassed in protection domain of the present utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (8)
1. split hopkinson bar supports and radially adjusts a locating device, it is characterized in that: mainly comprise guide rail, and the center bearing bracket that can move along guide rail, described center bearing bracket lower end is placed on guide rail by slide.
2. split hopkinson bar according to claim 1 supports and radially adjusts locating device, it is characterized in that: described center bearing bracket comprises upper frame and lower frame that can folding, on described lower frame, be arranged with adjustable spiral driving and reversing mechanism, spiral driving and reversing mechanism front end is provided with roller.
3. split hopkinson bar according to claim 2 supports and radially adjusts locating device, it is characterized in that: on described lower frame, screw in and have the locking pin vertical with spiral driving and reversing mechanism.
4. split hopkinson bar according to claim 2 supports and radially adjusts locating device, it is characterized in that: described center bearing bracket at least arranges two spiral driving and reversing mechanisms.
5. split hopkinson bar according to claim 2 supports and radially adjusts locating device, it is characterized in that: described upper frame and lower frame one end are connected through the hinge, and the other end connects by securing member.
6. split hopkinson bar according to claim 2 supports and radially adjusts locating device, it is characterized in that: on described upper frame, be also provided with adjustable spiral driving and reversing mechanism.
7. according to the split hopkinson bar described in any one in claim 2-6, support and radially adjust locating device, it is characterized in that: the tangential direction that described roller rolls is parallel with guide rail direction.
8. according to the split hopkinson bar described in any one in claim 1-6, support and radially adjust locating device, it is characterized in that: described guide rail is as a whole, or be formed by connecting by many short lead rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320491072.1U CN203405374U (en) | 2013-08-13 | 2013-08-13 | Supporting and radial adjusting positioning device of split Hopkinson bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320491072.1U CN203405374U (en) | 2013-08-13 | 2013-08-13 | Supporting and radial adjusting positioning device of split Hopkinson bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203405374U true CN203405374U (en) | 2014-01-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320491072.1U Expired - Fee Related CN203405374U (en) | 2013-08-13 | 2013-08-13 | Supporting and radial adjusting positioning device of split Hopkinson bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203405374U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103454141A (en) * | 2013-08-13 | 2013-12-18 | 中国人民解放军陆军军官学院 | Positioning device for supporting and radially adjusting split hopkinson bar |
| CN104729918A (en) * | 2015-03-11 | 2015-06-24 | 赵江霞 | Dynamic pull/pressing and torsion synchronous combined loading experiment device |
| CN104964871A (en) * | 2015-07-15 | 2015-10-07 | 福建江夏学院 | Adjustable vertical Hopkinson incident pressure bar bundle guide device and use method thereof |
| CN105043850A (en) * | 2015-07-15 | 2015-11-11 | 兰州理工大学 | Guiding device capable of adjusting transverse Hopkinson incident pressure bar bundle |
| CN105300790A (en) * | 2015-11-23 | 2016-02-03 | 福建江夏学院 | Orientation adjustment device of three-dimensional Hopkinson transmission pressure bar and use method thereof |
| CN112577813A (en) * | 2020-12-04 | 2021-03-30 | 西南交通大学 | Be used for disconnect-type hopkinson depression bar test piece positioner |
-
2013
- 2013-08-13 CN CN201320491072.1U patent/CN203405374U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103454141A (en) * | 2013-08-13 | 2013-12-18 | 中国人民解放军陆军军官学院 | Positioning device for supporting and radially adjusting split hopkinson bar |
| CN104729918A (en) * | 2015-03-11 | 2015-06-24 | 赵江霞 | Dynamic pull/pressing and torsion synchronous combined loading experiment device |
| CN104729918B (en) * | 2015-03-11 | 2017-05-24 | 赵江霞 | Dynamic pull/pressing and torsion synchronous combined loading experiment device |
| CN104964871A (en) * | 2015-07-15 | 2015-10-07 | 福建江夏学院 | Adjustable vertical Hopkinson incident pressure bar bundle guide device and use method thereof |
| CN105043850A (en) * | 2015-07-15 | 2015-11-11 | 兰州理工大学 | Guiding device capable of adjusting transverse Hopkinson incident pressure bar bundle |
| CN105043850B (en) * | 2015-07-15 | 2017-10-17 | 兰州理工大学 | The adjustable horizontal incident depression bar beam guider of Hopkinson of one kind |
| CN105300790A (en) * | 2015-11-23 | 2016-02-03 | 福建江夏学院 | Orientation adjustment device of three-dimensional Hopkinson transmission pressure bar and use method thereof |
| CN112577813A (en) * | 2020-12-04 | 2021-03-30 | 西南交通大学 | Be used for disconnect-type hopkinson depression bar test piece positioner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140122 Termination date: 20140813 |
|
| EXPY | Termination of patent right or utility model |