CN202903606U - Rotating disk impact tensile experiment system with flaky tensile test elements and cylindrical draw bar connection conversion devices - Google Patents
Rotating disk impact tensile experiment system with flaky tensile test elements and cylindrical draw bar connection conversion devices Download PDFInfo
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- CN202903606U CN202903606U CN 201220618821 CN201220618821U CN202903606U CN 202903606 U CN202903606 U CN 202903606U CN 201220618821 CN201220618821 CN 201220618821 CN 201220618821 U CN201220618821 U CN 201220618821U CN 202903606 U CN202903606 U CN 202903606U
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Abstract
The utility model provides a rotating disk impact tensile experiment system with flaky tensile test elements and cylindrical draw bar connection conversion devices, wherein one ends of the connection conversion devices in the tensile experiment system are outer threads which are connected with an inner thread end of an incident bar or a transmitting bar; the other ends of the connection conversion devices are provided with rectangular grooves which are bonded with one ends of the flaky tensile test elements through a high-intensity adhesive; and the connection conversion devices are all used in pairs. The rotating disk impact tensile experiment system with flaky tensile test elements and cylindrical draw bar connection conversion devices provided by the utility model is suitable for flaky tensile test elements for machining metal thin plate materials. The experiment system provided by the utility model can enable the dynamic tensile experiment to achieve test element central assembly, central continuous experiment and test element central detachment, not only can improve the experiment efficiency by multiple times, but also can avoid the phenomena that detaching tools lead to accumulative hard damage to the incident bar and the transmitting bar and adhesive failure in experiments when the flaky tensile test elements and the incident bar and the transmitting bar are detached by adopting the bonding mode.
Description
Technical field
The utility model belongs to metal material dynamic compression properties technical field, is specifically related to a kind of sheet tensile test specimen connects switching device with cylindrical pull bar rotating disc tensile impact experimental system that has.
Background technology
Lost efficacy from metal material, its tensile property is more important than the compression performance, because the tension failure of structured material often may cause catastrophic effect.Separate type Hopkinson (Hopkinson) pull bar is to carry out MATERIALS ' DYNAMIC tensile mechanical properties research the most effective the most frequently used experimental facilities.When testing with rotating disc tensile impact experimental system, test specimen and cylindrical pull bar must connect as one; When original test specimen and cylindrical pull bar adopted the sheet bonding way to test, bonding, disassembly, cleaning are consuming time more, and were larger on the impact of cylindrical pull bar and conventional efficient.Improving the connecting mode of test specimen and cylindrical pull bar, improve test specimen bonding strength and conventional efficient, avoid dismantling test specimen to the hard damage of cylindrical pull bar, is to need the major issue that solves during rotating disc tensile impact experimental system is tested.The connecting mode of test specimen and cylindrical pull bar has two kinds at present: thread connection and sheet are bonding.The former shortcoming is that light sheet can not be processed into the screw thread tensile test specimen; Latter is that conventional efficient is low, and during the dismounting test specimen, the steel drift in the remover connects the test specimen end to the incident bar in the cylindrical tie system, transmission bar and causes the hard damage of accumulation, affects bonding strength, and test specimen easily comes unstuck when causing experiment.
Summary of the invention
When adopting the sheet bonding way to test in order to overcome test specimen of the prior art and cylindrical pull bar, bonding, disassembly, cleaning are consuming time many, to the hard damage of the accumulation of cylindrical pull bar and the low deficiency of conventional efficient, the utility model provides a kind of sheet tensile test specimen connects switching device with cylindrical pull bar rotating disc tensile impact experimental system that has.
Of the present utility model have the sheet tensile test specimen connects switching device with cylindrical pull bar a rotating disc tensile impact experimental system, be characterized in, described rotating disc tensile impact experimental system, comprise incident bar, transmission bar, test specimen, loading quarter butt, tup, collision block, rotating disc impact system, test macro, comprise that also columniform first connects switching device and the second connection switching device, wherein, test macro comprises high dynamic strain indicator and computing machine, and the rotating disc impact system contains the first tup and the second tup; Described first connects switching device, second end that connects switching device all by external thread, and the other end has rectangular channel; First connects switching device, second connects switching device to have an end of rectangular channel bonding by the two ends of high strength bonding agent and sheet tensile test specimen respectively; The first male end that connects switching device connects with the female end of incident bar one end, and the second male end that connects switching device connects with the female end of transmission bar one end; The transmission bar other end connects with hold-down support; Load an end of quarter butt and the other end of incident bar and pass through thread connection, the other end and the collision block that load quarter butt pass through thread connection; Be provided with foil gauge I at incident bar, be provided with foil gauge II at transmission bar, foil gauge I, foil gauge II connect with high dynamic strain indicator, and high dynamic strain indicator connects with computing machine.
Described sheet tensile test specimen be shaped as dumb-bell shape.
Connection switching device in the utility model and the link of sheet tensile test specimen are measure-alike, and bonding with the high strength bonding agent.
Described connection switching device is before the single stretching experiment, carry out bondingly with an end that connects switching device and opened rectangular channel respectively with the two ends of sheet tensile test specimen first, carry out thread connection with incident bar, transmission bar respectively with two other ends that connect switching devices again.
Described connection switching device and incident bar, the metal that the transmission bar material property parameter is close are made.
Described sheet tensile test specimen with connect switching device and carry out when bonding, according to the bonding agent solidifying requirements, concentrate and be cured (to be heating and curing etc. such as the unified baking oven of putting into, when summer temperature is higher, to solidify more than 3 hours; Can put into baking oven winter, and baking is 3 hours about 40 ℃), technique for sticking consistent (hardening agent is according to the cold and hot increase and decrease of weather) can reduce the inconsistent experiment that brings of technique for sticking uncertain.
The first tup and the second tup bump loads collision block that quarter butt connects in the utility model, loads quarter butt and produces tensile stress wave, and this stress wave is finished the dynamic tensile experiment by incident bar, sheet tensile test specimen and transmission bar.
Incident bar in the utility model, a transmission bar end mutually bonding with the sheet tensile test specimen have and sheet tensile test specimen one end size, area suitable rectangular channel mutually, so as with sheet tensile test specimen strong bond.
In the technical scheme that the utility model is taked, thread connection and the bonding advantage of sheet in conjunction with test specimen and cylindrical pull bar, be provided with the switching device that connects of sheet tensile test specimen and cylindrical pull bar, connect sheet tensile test specimen and cylindrical pull bar by connecting switching device, realize the experiment of high-level efficiency dynamic tensile.
Sheet tensile test specimen in the utility model is metal material, be shaped as dumb-bell shape, and the two ends of sheet tensile test specimen are bonding with high-strength bonding agent with incident bar, transmission bar respectively.According to the bonding agent solidifying requirements, can concentrate and be cured (being heating and curing etc. such as the unified baking oven of putting into), technique for sticking is consistent, can reduce the inconsistent experiment that brings of technique for sticking uncertain.
The utility model is applicable to the sheet tensile test specimen of metallic sheet stock processing, can make the sheet tensile test specimen concentrate mounting or dismounting, and experiment also can avoid dismantling test specimen continuously to the hard damage of cylindrical pull bar, and several times improve conventional efficient.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the schematic diagram that the sheet tensile test specimen in the utility model is connected with the connection switching device;
Fig. 3 is the diagrammatic cross-section that the sheet tensile test specimen in the utility model is connected with the connection switching device;
Among the figure: 1. incident bar 2. transmission bars 3. hold-down supports 4. sheet tensile test specimens 5. first connect switching device 6. second and connect switching device 7. first tups 8. second tups 9. loading quarter butts 10. collision blocks 11. foil gauge I 12. foil gauge II 13. high dynamic strain indicators 14. computing machines.
Embodiment
The present invention is further illustrated below in conjunction with drawings and Examples.
Fig. 1 is structural representation of the present utility model, and Fig. 2 is the schematic diagram that the sheet tensile test specimen in the utility model is connected with the connection switching device, and Fig. 3 is the diagrammatic cross-section that the sheet tensile test specimen in the utility model is connected with the connection switching device.
In Fig. 1～Fig. 3, of the present utility model have the sheet tensile test specimen connects switching device with cylindrical pull bar a rotating disc tensile impact experimental system, comprise incident bar, transmission bar, test specimen, loading quarter butt, tup, collision block, rotating disc impact system, test macro, comprise that also columniform first connects switching device 5 and the second connection switching device 6, wherein, test macro comprises high dynamic strain indicator 13 and computing machine 14, and the rotating disc impact system contains the first tup 7 and the second tup 8; Described first end that connects switching device 5, the second connection switching device 6 is external thread, and the other end has rectangular channel; First connects switching device 5, second connects switching device 6 to have an end of rectangular channel bonding by two bonding ends of high strength bonding agent and sheet tensile test specimen 4 respectively; The first male end that connects switching device 5 connects with the female end of incident bar 1 one ends, and the second male end that connects switching device 6 connects with the female end of transmission bar 2 one ends; Transmission bar 2 other ends connect with hold-down support 3; Load an end of quarter butt 9 and the other end of incident bar 1 and pass through thread connection, the other end and the collision block 10 that load quarter butt 9 pass through thread connection; Be provided with foil gauge I11 at incident bar 1, be provided with foil gauge II12 at transmission bar 2, foil gauge I11, foil gauge II12 connect with high dynamic strain indicator 13, and high dynamic strain indicator 13 connects with computing machine 14.
Contain the first tup 7, the second tup 8 and rotating disc in the described rotating disc impact system, the first tup 7, the second tup 8 are fixedly installed on the rotating disc.
Described sheet tensile test specimen be shaped as dumb-bell shape.
Experimentation of the present utility model is: before the experiment, connect switching device 5, second by requirement of experiment with first and connect switching device 6 and sheet tensile test specimen 4, clean up with acetone, ethanol respectively and dry, the two ends of sheet tensile test specimen 4 are applied respectively the high-strength bonding agent that mixes up, bonding to first connects and (when summer temperature is higher, to solidify more than 3 hours in the rectangular channel that switching device 5, second connects switching device 6; Can put into baking oven winter toasted 3 hours about 40 ℃), the the first connection switching device 5, second that is cured is connected two male end of switching device 6 and sheet tensile test specimen 4 integral body (seeing Fig. 2, Fig. 3), carry out spiral marking connection with incident bar 1 and transmission bar 2 respectively; Install on request and load quarter butt 9, the thread connection (see figure 1) is adopted with an end of collision block 10 and incident bar 1 respectively in its two ends, open high dynamic strain indicator 13, computing machine 14 in the test macro, operation rotating disc impact system, when the rotating disc impact system enters stable operation, discharge simultaneously the first tup 7 and the second tup 8, percussion collision block 10, the stress wave that loads quarter butt 9 generations carries out dynamic tensile by incident bar 1 and 2 pairs of sheet tensile test specimens of transmission bar 4, finishes experiment.
Sheet tensile test specimen described in the utility model connect with cylindrical pull bar switching device for incident bar, metal that the transmission bar material property is close.
Sheet tensile test specimen described in the utility model connects the dumbbell shape sheet tensile test specimen that switching device is applicable to metallic sheet stock processing with cylindrical pull bar.
Sheet tensile test specimen in the utility model connects switching device with cylindrical pull bar can be bonding in batches before experiment, and each stretching experiment can efficiently be installed and removed and reuse easily.
Experimental system of the present utility model, can make the dynamic tensile experiment realize concentrating the assembling test specimen, concentrate continuously experiment and concentrate the dismounting test specimen, both but several times improved conventional efficient, in the time of also can avoiding sheet tensile test specimen and incident bar, transmission bar all to adopt bonding way to test rear dismounting, remover causes incident bar, transmission bar and occurs degumming phenomenon when accumulation is hard to be damaged and test.
Claims (2)
1. one kind has the sheet tensile test specimen connects switching device with cylindrical pull bar rotating disc tensile impact experimental system, comprise incident bar, transmission bar, test specimen, loading quarter butt, tup, collision block, rotating disc impact system, test macro, it is characterized in that: described stretching experiment system comprises that also columniform first connects switching device (5) and the second connection switching device (6), wherein, test macro comprises high dynamic strain indicator (13) and computing machine (14), and the rotating disc impact system contains the first tup (7) and the second tup (8); Described first end that connects switching device (5), the second connection switching device (6) is external thread, and the other end all has rectangular channel; First connects switching device (5), second connects switching device (6) to have an end of rectangular channel bonding by the two ends of high strength bonding agent and sheet tensile test specimen (4) respectively; The first male end and incident bar (1) one end that connects switching device (5) passes through thread connection, and the second male end and transmission bar (2) one ends that connect switching device (6) pass through thread connection; Transmission bar (2) other end connects with hold-down support (3); Load an end of quarter butt (9) and the other end of incident bar (1) and pass through thread connection, the other end and the collision block (10) that load quarter butt (9) pass through thread connection; Be provided with foil gauge I(11 at incident bar (1)), be provided with foil gauge II(12 at transmission bar (2)), foil gauge I(11), foil gauge II(12) connect with high dynamic strain indicator (13), high dynamic strain indicator (13) connects with computing machine (14).
2. a kind of sheet tensile test specimen connects switching device with cylindrical pull bar rotating disc tensile impact experimental system that has according to claim 1 is characterized in that: described sheet tensile test specimen be shaped as dumb-bell shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220618821 CN202903606U (en) | 2012-11-21 | 2012-11-21 | Rotating disk impact tensile experiment system with flaky tensile test elements and cylindrical draw bar connection conversion devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220618821 CN202903606U (en) | 2012-11-21 | 2012-11-21 | Rotating disk impact tensile experiment system with flaky tensile test elements and cylindrical draw bar connection conversion devices |
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| Publication Number | Publication Date |
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| CN202903606U true CN202903606U (en) | 2013-04-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220618821 Expired - Fee Related CN202903606U (en) | 2012-11-21 | 2012-11-21 | Rotating disk impact tensile experiment system with flaky tensile test elements and cylindrical draw bar connection conversion devices |
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| CN (1) | CN202903606U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103389246A (en) * | 2013-08-14 | 2013-11-13 | 齐鲁工业大学 | Device for obtaining leather section at stretching state and sample preparation method |
| CN104181102A (en) * | 2014-08-08 | 2014-12-03 | 太原理工大学 | Experimental device and experimental method of impact drawing-twisting load |
| CN107884271A (en) * | 2017-11-15 | 2018-04-06 | 河南理工大学 | Drawing converter and punching drawing test method are rushed in rock dynamic direct tensile test |
| CN115308058A (en) * | 2022-10-11 | 2022-11-08 | 中国矿业大学(北京) | Underground engineering support system high strain rate dynamic test and evaluation system and method |
-
2012
- 2012-11-21 CN CN 201220618821 patent/CN202903606U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103389246A (en) * | 2013-08-14 | 2013-11-13 | 齐鲁工业大学 | Device for obtaining leather section at stretching state and sample preparation method |
| CN103389246B (en) * | 2013-08-14 | 2015-04-22 | 齐鲁工业大学 | Device for obtaining leather section at stretching state and sample preparation method |
| CN104181102A (en) * | 2014-08-08 | 2014-12-03 | 太原理工大学 | Experimental device and experimental method of impact drawing-twisting load |
| CN107884271A (en) * | 2017-11-15 | 2018-04-06 | 河南理工大学 | Drawing converter and punching drawing test method are rushed in rock dynamic direct tensile test |
| CN107884271B (en) * | 2017-11-15 | 2023-09-12 | 河南理工大学 | Impact-pulling converter for rock dynamic direct tensile test and impact-pulling test method |
| CN115308058A (en) * | 2022-10-11 | 2022-11-08 | 中国矿业大学(北京) | Underground engineering support system high strain rate dynamic test and evaluation system and method |
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| 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: 20130424 Termination date: 20191121 |
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| CF01 | Termination of patent right due to non-payment of annual fee |