CN206848052U - Servicing unit for split hopkinson press bar testing equipment - Google Patents
Servicing unit for split hopkinson press bar testing equipment Download PDFInfo
- Publication number
- CN206848052U CN206848052U CN201720655199.0U CN201720655199U CN206848052U CN 206848052 U CN206848052 U CN 206848052U CN 201720655199 U CN201720655199 U CN 201720655199U CN 206848052 U CN206848052 U CN 206848052U
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- CN
- China
- Prior art keywords
- briquetting
- baffle plate
- leading screw
- testing equipment
- servicing unit
- 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.)
- Expired - Fee Related
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses a kind of servicing unit for split hopkinson press bar testing equipment, including two identical main bodys, the main body includes semicircle clip, handle, leading screw, briquetting and baffle plate, semicircle clip top exterior walls are arranged with a pair of vertical projections being parallel to each other, baffle plate is fixed on two vertical raised top surfaces, briquetting center immediately below baffle plate is provided with two rank through holes, briquetting is arranged on semicircle clip top surface, the second order through hole of leading screw one end and briquetting coordinates, the other end passes through interference fit through baffle plate and the handle above baffle plate.The gap that the utility model purpose is to reduce between test specimen and incident bar and transmission bar facilitates to error caused by result of the test, simple in construction, installation operation.
Description
Technical field
The utility model belongs to the dynamic mechanical measuring technology of material, and in particular to one kind is used for separate type Hope gold
The servicing unit of gloomy depression bar testing equipment.
Background technology
Most of materials all show LOADING RATES to a certain degree or strain rate sensitivity in terms of the mechanical properties such as intensity.
The strain rate effect of the mechaanical property of materials caused by the pulse of amplitude short time and load, for anti-dynamic load structure design with
Analysis is very important, and this is very important to penetration, blast and the high velocity impact of studying weapon.
Split hopkinson press bar（Abbreviation SHPB）It is acknowledged as the most frequently used maximally effective research pulse Under Dynamic Load
The experimental facilities of the lower mechaanical property of materials.Due to SHPB experimental rigs have simple in construction, easy to operate, measuring method is ingenious,
The advantages that Loaded contact analysis is easily controllable, and stress-strain diagram of the material under high strain-rate can be surveyed, therefore it is material
Most basic a kind of experimental rig in dynamics.
Although split hopkinson press bar is widely used in the field of research material Dynamic compressive property, its
There are problems that in the installation of the test specimen of device in use, it is generally the case that in order to fix test specimen and reduce test specimen
Gap between depression bar, there are two end faces of the binding agent smearing test specimen of certain stickiness using vaseline etc., with both ends
Depression bar is connected, and connects two depression bars using plastic strip, is fixed in adhesive tape etc. on depression bar.Adhesive tape is being pressed in this method
Remaining binder removes trouble on bar, and cumbersome in test, carries out having a strong impact on test efficiency during serial experiment, causes
Time and the waste of test consumable.So need a kind of cheap, simple in construction, easy to operate servicing unit badly.
The content of the invention
The purpose of this utility model is to provide a kind of servicing unit for split hopkinson press bar testing equipment,
Solve the problems, such as that test specimen easily loosens and then influences result of the test in test specimen instrumentation during experiment.
The technical solution for realizing the utility model purpose is：One kind is used for split hopkinson press bar testing equipment
Servicing unit, including two identical main bodys, the main body include semicircle clip, handle, leading screw, briquetting and gear
Plate, semicircle clip top exterior walls are arranged with a pair of vertical projections being parallel to each other, baffle plate be fixed on two it is vertical raised
Top surface, the briquetting center immediately below baffle plate are provided with two rank through holes, and briquetting is arranged on semicircle clip top surface, leading screw one end with
The second order through hole of briquetting coordinates, and the other end passes through interference fit through baffle plate and the handle above baffle plate.
Compared with prior art, its remarkable advantage is the utility model：（1）Reasonable in design, simple in construction, installation operation
It is convenient；（2）Pressuring action is produced to test specimen, reduces the space between test specimen and incident bar and transmission bar, effectively raises
Test accuracy；（3）Process simple, low-cost.
Brief description of the drawings
Fig. 1 is that the overall structure for the servicing unit that the utility model is used for split hopkinson press bar testing equipment is shown
It is intended to.
Fig. 2 is the semicircle clip for the servicing unit that the utility model is used for split hopkinson press bar testing equipment
Partial enlarged drawing.
Fig. 3 is that the semicircle clip for the servicing unit that the utility model is used for split hopkinson press bar testing equipment is bowed
View.
Fig. 4 is the partial enlarged drawing for the servicing unit that the utility model is used for split hopkinson press bar testing equipment.
Fig. 5 is that the utility model is used for the servicing unit of split hopkinson press bar testing equipment in separate type Hope gold
Application schematic diagram in gloomy depression bar testing equipment.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings.
With reference to Fig. 1 to Fig. 4, the utility model proposes a kind of auxiliary dress for split hopkinson press bar testing equipment
Put, including two identical main bodys, the main body include semicircle clip 1, handle 2, leading screw 3, briquetting 6 and baffle plate 7, half
The circular top exterior walls of clip 1 are arranged with vertical raised 8 to be parallel to each other for a pair, and baffle plate 7 is fixed on the tops of two vertical projections 8
Face, the center of briquetting 6 immediately below baffle plate 7 are provided with two rank through holes, and briquetting 6 is arranged on the semicircle top surface of clip 1, leading screw 3 one
End and the second order through hole of briquetting 6 coordinate, and the other end passes through interference fit through baffle plate 7 and the handle 2 of the top of baffle plate 7.
A pair of journal stirrups 9 are arranged with the openend of the semicircle clip 1, for two semicircle clips 1 to be passed through
Bolt connection is fixed.
The top surface of semicircle clip 1 between described two vertical projections 8 is provided with a groove 10, and briquetting 6 is positioned at described recessed
In groove 10, groove 10 plays position-limiting action to it.
The center of baffle plate 7 is provided with screwed hole, matches with the main thread of leading screw 3.
Described one end of leading screw 3 uses sub-calibre screw thread, sub-calibre part by the small through hole of the internal diameter in briquetting 6, and with
Nut 5 coordinates, and completes briquetting 6 on leading screw 3 along the positioning of the axial direction of leading screw 3.
With reference to Fig. 5, it is necessary to two groups of separate type Hopkinson pressure bar test equipment servicing units, two groups of separate types during experiment
Hopkinson pressure bar test equipment servicing unit is separately fixed at incident bar and transmission bar close to one end of test specimen, passes through two modelings
Material strip completes the compression and release to test specimen.
During compressing plastic strip, the both ends of two plastic strips are respectively from the semicircle card between two vertical projections 8
The top surface of hoop 1 stretches out, and by rotational handle 2, leading screw 3 rotates with the rotation of handle 2, briquetting 6 with the rotation of leading screw 3,
Along the axial downward movement of leading screw 3, plastic strip is compressed, and is carried out by groove 10 spacing, completes the compression to plastic strip, so it is right
Test specimen is compressed.When discharging plastic strip, to opposite direction rotational handle 2, leading screw 3 rotates, briquetting 6 with the rotation of handle 2
It is moved axially upward along leading screw 3 with the rotation of leading screw 3, lifted from groove 10, complete to discharge plastic strip, and then discharge
Test specimen.
Embodiment
With reference to Fig. 1 to Fig. 5, the utility model proposes a kind of auxiliary dress for split hopkinson press bar testing equipment
Put, including two identical main bodys, the main body include semicircle clip 1, handle 2, leading screw 3, briquetting 6 and baffle plate 7, half
The circular top exterior walls of clip 1 are arranged with vertical raised 8 to be parallel to each other for a pair, baffle plate 7 by bolt 4 be fixed on two it is vertical
The top surface of projection 8, the center of briquetting 6 immediately below baffle plate 7 are provided with two rank through holes, and briquetting 6 is arranged on semicircle clip 1 and pushed up
Face, the one end of leading screw 3 and the second order through hole of briquetting 6 coordinate, and the other end is matched somebody with somebody through baffle plate 7 and the handle 2 of the top of baffle plate 7 by interference
Close.
A pair of journal stirrups 9 are arranged with the openend of the semicircle clip 1, for two semicircle clips 1 to be passed through
The attaching nut 5 of bolt 4 is connected.
The top surface of semicircle clip 1 between described two vertical projections 8 is provided with a groove 10, and briquetting 6 is positioned at described recessed
In groove 10, groove 10 plays position-limiting action to it.
The center of baffle plate 7 is provided with screwed hole, matches with the main thread of leading screw 3.
Described one end of leading screw 3 uses sub-calibre screw thread, sub-calibre part by the small through hole of the internal diameter in briquetting 6, and with
Nut 5 coordinates, and completes briquetting 6 on leading screw 3 along the positioning of the axial direction of leading screw 3.
With reference to Fig. 4, two groups of separate type Hopkinson pressure bar test equipment servicing units are separately fixed at incident bar and transmission
Bar completes the compression to test specimen and release close to one end of test specimen by two plastic strips.
Claims (5)
- A kind of 1. servicing unit for split hopkinson press bar testing equipment, it is characterised in that：Including two complete phases Same main body, the main body include semicircle clip（1）, handle（2）, leading screw（3）, briquetting（6）And baffle plate（7）, semicircle card Hoop（1）Top exterior walls are arranged with a pair of vertical projections being parallel to each other（8）, baffle plate（7）It is fixed on two vertical projections（8）'s Top surface, positioned at baffle plate（7）The briquetting of underface（6）Center is provided with two rank through holes, briquetting（6）It is arranged on semicircle clip（1）Top Face, leading screw（3）One end and briquetting（6）Second order through hole coordinate, the other end passes through baffle plate（7）With baffle plate（7）The handle of top（2） Pass through interference fit.
- 2. the servicing unit according to claim 1 for split hopkinson press bar testing equipment, it is characterised in that： The semicircle clip（1）Openend on be arranged with a pair of journal stirrups（9）, for by two semicircle clips（1）Pass through spiral shell Bolt is connected.
- 3. the servicing unit according to claim 1 for split hopkinson press bar testing equipment, it is characterised in that： It is described two vertical raised（8）Between semicircle clip（1）Top surface is provided with a groove（10）, briquetting（6）Positioned at described recessed Groove（10）In, groove（10）Position-limiting action is risen to it.
- 4. the servicing unit according to claim 1 for split hopkinson press bar testing equipment, it is characterised in that： The baffle plate（7）Center is provided with screwed hole, with leading screw（3）Main thread match.
- 5. the servicing unit according to claim 1 for split hopkinson press bar testing equipment, it is characterised in that： The leading screw（3）One end uses sub-calibre screw thread, and sub-calibre part passes through briquetting（6）In the small through hole of internal diameter, and and nut Coordinate, complete briquetting（6）In leading screw（3）On along leading screw（3）The positioning of axial direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720655199.0U CN206848052U (en) | 2017-06-07 | 2017-06-07 | Servicing unit for split hopkinson press bar testing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720655199.0U CN206848052U (en) | 2017-06-07 | 2017-06-07 | Servicing unit for split hopkinson press bar testing equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206848052U true CN206848052U (en) | 2018-01-05 |
Family
ID=60797594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720655199.0U Expired - Fee Related CN206848052U (en) | 2017-06-07 | 2017-06-07 | Servicing unit for split hopkinson press bar testing equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206848052U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107121332A (en) * | 2017-06-07 | 2017-09-01 | 南京理工大学 | Servicing unit for split hopkinson press bar testing equipment |
| CN110260713A (en) * | 2019-07-19 | 2019-09-20 | 北京航天发射技术研究所 | A kind of the revolution axis mechanism and its interconnection method of rocket launching rack |
| CN110360882A (en) * | 2019-07-19 | 2019-10-22 | 北京航天发射技术研究所 | A kind of rocket off-shore launching platform frame and the method for playing perpendicular rocket |
| 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 |
-
2017
- 2017-06-07 CN CN201720655199.0U patent/CN206848052U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107121332A (en) * | 2017-06-07 | 2017-09-01 | 南京理工大学 | Servicing unit for split hopkinson press bar testing equipment |
| CN107121332B (en) * | 2017-06-07 | 2023-08-08 | 南京理工大学 | Auxiliary device for separated Hopkinson pressure bar test equipment |
| CN110260713A (en) * | 2019-07-19 | 2019-09-20 | 北京航天发射技术研究所 | A kind of the revolution axis mechanism and its interconnection method of rocket launching rack |
| CN110360882A (en) * | 2019-07-19 | 2019-10-22 | 北京航天发射技术研究所 | A kind of rocket off-shore launching platform frame and the method for playing perpendicular rocket |
| CN110260713B (en) * | 2019-07-19 | 2021-08-17 | 北京航天发射技术研究所 | Rotating shaft mechanism of rocket launching stand and butt joint method thereof |
| CN110360882B (en) * | 2019-07-19 | 2021-08-27 | 北京航天发射技术研究所 | Rocket marine launching rack and rocket erecting method |
| 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 |
| CN112577813B (en) * | 2020-12-04 | 2022-04-12 | 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 |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180105 Termination date: 20200607 |
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| CF01 | Termination of patent right due to non-payment of annual fee |