CN204116148U - High speed dynamic compressive test device - Google Patents
High speed dynamic compressive test device Download PDFInfo
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- CN204116148U CN204116148U CN201420600285.8U CN201420600285U CN204116148U CN 204116148 U CN204116148 U CN 204116148U CN 201420600285 U CN201420600285 U CN 201420600285U CN 204116148 U CN204116148 U CN 204116148U
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- 238000012360 testing method Methods 0.000 title claims abstract description 65
- 230000006835 compression Effects 0.000 claims abstract description 15
- 238000007906 compression Methods 0.000 claims abstract description 15
- 238000003825 pressing Methods 0.000 claims abstract description 12
- 239000000463 material Substances 0.000 claims description 19
- 230000007246 mechanism Effects 0.000 claims description 14
- 238000007789 sealing Methods 0.000 claims description 4
- 238000009864 tensile test Methods 0.000 abstract description 9
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000012669 compression test Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000013078 crystal Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
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Abstract
The utility model relates to a kind of high speed dynamic compressive test device, described high speed dynamic compressive test device comprises the erecting bed for installing test specimen and the load maintainer for carrying out compression-loaded to described test specimen, described load maintainer comprises the depression bar that pressing plate for compressing described test specimen and one end are fixedly connected with described pressing plate, particularly, described load maintainer also comprises the connecting link be connected with the other end of described depression bar by discharge arm, described connecting link has cavity, the other end of described depression bar is positioned at described cavity and the bearing of trend of described depression bar is identical with the bearing of trend of described connecting link.High speed dynamic compressive test device of the present utility model can directly be applied on high speed tensile test machine, realizes high speed dynamic compression, keeps constant speed to load, and can realize the constant speed compression-loaded under the loading of basic, normal, high different strain rate, safe and reliable.
Description
Technical field
The utility model belongs to material mechanical performance dynamic test and representational field, for the industry such as automobile, aviation, is specifically related to a kind of high speed dynamic compressive test device.
Background technology
When automobile collides, many vehicle materials such as high-strength steel, plastics, compound substance etc. all can suffer compression deformation in various degree, and can cause inefficacy and the fracture of material time serious, the Dynamic compressive property therefore studying vehicle material is very important.At present, the testing tool of Material compression performance mainly contains electronic universal tester and drop hammer test platform.Wherein, electronic universal tester is mainly applicable to quasistatic or compared with the compression test under low strain dynamic rate, cannot realize high speed dynamic compression, but for materials such as high-strength steel, plastics, foams, we pay close attention to the mechanical characteristic of material under middle and high rate of strain (1 ~ 1000/s) loads more; Drop-weight test platform can realize high speed dynamic compression, can meet specific contact velocity requirement, but will change at loading procedure medium velocity, and namely non-constant velocity loads, and there is energy loss in impact process.
High speed tensile test machine is mainly used in the mechanical property of test metal, compound substance, plastic or other material and parts under the effect of high strain rate load, the fields such as new material research and development, Aero-Space and automobile are widely used in, as the material parameter of measured automobiles high strength steel plate under high strain-rate.This equipment has advanced stretching clamp, is mainly used as the tension test of material at present, has the function of impact compress simultaneously, but be limited to device hardware in this device software program, if the compression test of being directly used in, easily produces unstability and causes damage to equipment.
Summary of the invention
Technical problem to be solved in the utility model overcomes the deficiencies in the prior art, a kind of high speed dynamic compressive test device on high speed tensile test machine is provided, this high speed dynamic compressive test device can be used in realizing basic, normal, high different strain rate load under constant speed compression-loaded, safe and reliable.
For solving the problems of the technologies described above, the utility model adopts following technical scheme:
High speed dynamic compressive test device, comprise the erecting bed for installing test specimen and the load maintainer for carrying out compression-loaded to described test specimen, described load maintainer comprises the depression bar that pressing plate for compressing described test specimen and one end are fixedly connected with described pressing plate, described load maintainer also comprises the connecting link be connected with the other end of described depression bar by discharge arm, described connecting link has cavity, and the other end of described depression bar is positioned at described cavity and the bearing of trend of described depression bar is identical with the bearing of trend of described connecting link.
Described discharge arm is arranged through described depression bar, and the both ends of described discharge arm are each passed through the corresponding two side of described connecting link and extend to outside described connecting link.
The both ends of described discharge arm are fixedly connected with described connecting link respectively by securing member.
The bearing of trend of described discharge arm is perpendicular to the bearing of trend of described connecting link.
Position between the madial wall at described connecting link of described discharge arm and described depression bar offers multiple breach.
Multiple described breach is symmetrically distributed in the symmetrical two side faces of described discharge arm.
Be filled with cushioned material layer in described cavity, the one side of described cushioned material layer contacts with the other end of described depression bar, and another side contacts with described connecting link.
Sealing ring is provided with between described depression bar and described connecting link.
Described high speed dynamic compressive test device also comprises guiding mechanism, described guiding mechanism comprises the supporting seat being fixedly installed on described erecting bed side, the guide rod be fixedly connected with described supporting seat and is slidably arranged in the sliding sleeve on described guide rod along the length direction of described guide rod, described load maintainer also comprises the web joint be fixedly connected between described depression bar and described pressing plate, and the sidepiece of described web joint is fixedly connected with described sliding sleeve.
Described guiding mechanism is provided with 2, and 2 described guiding mechanisms are symmetricly set on two sides of described erecting bed, and the both sides of described web joint are fixedly connected with the described sliding sleeve of both sides respectively.
Due to the enforcement of above technical scheme, the utility model compared with prior art has following advantages:
High speed dynamic compressive test device of the present utility model has discharge arm, by discharge arm is designed to difformity and size, can realize the unloading experiment of different specified force value.
High speed dynamic compressive test device of the present utility model can realize high speed dynamic compression, keeps constant speed to load, and can realize the compression-loaded test under basic, normal, high different strain rate.
High speed dynamic compressive test apparatus structure of the present utility model is relatively simple, and manufacturing cost is lower, safe and reliable.
Accompanying drawing explanation
Fig. 1 is the stereographic map of the utility model high speed dynamic compressive test device;
Fig. 2 is that the A-A of connecting link and depression bar junction in Fig. 1 is to cut-open view;
Fig. 3 is the side view of the utility model high speed dynamic compressive test device;
Fig. 4 is the stereographic map of the discharge arm of the utility model high speed dynamic compressive test device;
Fig. 5 is the side view of the discharge arm of the utility model high speed dynamic compressive test device;
In figure: 1, connecting link; 2, securing member; 3, depression bar; 4, web joint; 5, pressing plate; 6, sliding sleeve; 7, guide rod; 8, cavity; 9, supporting seat; 10, high speed tensile test machine testing table; 11, sensor base; 12, sensor; 13, erecting bed; 14, test specimen; 15, cushioned material layer; 16, discharge arm; 17, sealing ring; 18, T-slot; 19, breach.
Embodiment
Below in conjunction with Figure of description, the utility model is described further:
As shown in accompanying drawing 1 ~ 5, a kind of high speed dynamic compressive test device, for high speed tensile test machine, this high speed dynamic compressive test device comprises the erecting bed 13 for installing test specimen 14 and the load maintainer for carrying out compression-loaded to test specimen 14, this load maintainer comprises the depression bar 3 be fixedly connected with for the pressing plate 3 of compression specimens 14, one end and pressing plate 5 and the connecting link 1 be connected with the other end of depression bar 3 by discharge arm 16, connecting link 1 has cavity 8, and the other end of depression bar 3 is positioned at cavity 8 and the bearing of trend of depression bar 3 is identical with the bearing of trend of connecting link 1.
Discharge arm 16 is arranged through depression bar 3, and the both ends of discharge arm 16 are each passed through the corresponding two side of connecting link 1 and extend to outside connecting link 1.The both ends of discharge arm 16 are fixedly connected with connecting link 1 respectively by securing member 2, and securing member 2 is bolt.
The bearing of trend of discharge arm 16 is perpendicular to the bearing of trend of connecting link 1.
Position between the madial wall at connecting link 1 of discharge arm 16 and depression bar 3 offers multiple breach 19, and the size of breach 19 and the depth can adjust as required.Particularly, breach 19 symmetry can offer 4, and 4 breach 19 are symmetricly set on the two ends of discharge arm 16 and the relative two side faces of respective end respectively.
Be filled with cushioned material layer 15 in the cavity 8 of connecting link 1, the one side of cushioned material layer 15 contacts with the other end of depression bar 3, and another side contacts with connecting link 1.
In order to make depression bar 3 can not rock in the cavity 8 of connecting link 1, between depression bar 3 and the inwall of connecting link 1, be provided with sealing ring 17.
High speed dynamic compressive test device of the present utility model also comprises guiding mechanism, the sliding sleeve 6 that guiding mechanism comprises the supporting seat 9 being fixedly installed on erecting bed 13 side, the guide rod 7 be fixedly connected with supporting seat 9 and is slidably arranged in along the length direction of guide rod 7 on guide rod 7, load maintainer also comprises the web joint 4 be fixedly connected between depression bar 3 and pressing plate 5, and the sidepiece of web joint 4 is fixedly connected with sliding sleeve 6.
Particularly, guiding mechanism is provided with 2, and 2 guiding mechanisms are symmetricly set on two sides of erecting bed 13, and the both sides of web joint 4 are fixedly connected with the sliding sleeve 6 of both sides respectively.
Principle of work of the present utility model:
High speed tensile test machine testing table 10 has been bolted to connection sensor base 11, sensor base 11 has been provided with the sensor 12 for dynamometry, side is provided with erecting bed 13 on the sensor 12, erecting bed 13 is placed test test specimen 14; The supporting seat 9 of guiding mechanism to be fixed with the T-slot 18 on high speed tensile test machine testing table 10 by bolt and to be connected, and guiding mechanism is positioned at relative two sides of erecting bed 13, has wider test specification and measures the visual field; The connecting link 1 of compression test device is connected by screw thread with high speed tensile test machine.
After on-test, connecting link 1 is moved by the length direction of sliding sleeve 6 along guide rod 7 with dynamic pressure plate 5, test specimen 14 pressurized, sensor 12 dynamometry, test normal termination; If test force exceedes discharge arm 16 ratings, discharge arm 16 ruptures, and connecting link 1 and depression bar 3 produce relative motion, and depression bar 3 extrudes cushioned material layer 15, plays the effect absorbing dump energy, protection test equipment, off-test.
In process of the test, use non-contact measurement method can measure the compression deformation of test; The piezoelectric crystal force snesor dynamometry that can directly use high speed tensile test machine to carry under low strain dynamic rate loads; In middle and high rate of strain load test operating mode, paster force snesor dynamometry can be used.
Above the utility model is described in detail; its object is to allow the personage being familiar with this art can understand content of the present utility model and be implemented; protection domain of the present utility model can not be limited with this; all equivalences done according to Spirit Essence of the present utility model change or modify, and all should be encompassed in protection domain of the present utility model.
Claims (10)
1. high speed dynamic compressive test device, comprise the erecting bed for installing test specimen and the load maintainer for carrying out compression-loaded to described test specimen, described load maintainer comprises the depression bar that pressing plate for compressing described test specimen and one end are fixedly connected with described pressing plate, it is characterized in that: described load maintainer also comprises the connecting link be connected with the other end of described depression bar by discharge arm, described connecting link has cavity, and the other end of described depression bar is positioned at described cavity and the bearing of trend of described depression bar is identical with the bearing of trend of described connecting link.
2. high speed dynamic compressive test device according to claim 1, is characterized in that: described discharge arm is arranged through described depression bar, and the both ends of described discharge arm are each passed through the corresponding two side of described connecting link and extend to outside described connecting link.
3. high speed dynamic compressive test device according to claim 2, is characterized in that: the both ends of described discharge arm are fixedly connected with described connecting link respectively by securing member.
4. high speed dynamic compressive test device according to claim 2, is characterized in that: the bearing of trend of described discharge arm is perpendicular to the bearing of trend of described connecting link.
5. high speed dynamic compressive test device according to claim 2, is characterized in that: the position between the madial wall at described connecting link of described discharge arm and described depression bar offers multiple breach.
6. high speed dynamic compressive test device according to claim 5, is characterized in that: multiple described breach is symmetrically distributed in the symmetrical two side faces of described discharge arm.
7. high speed dynamic compressive test device according to claim 1, is characterized in that: be filled with cushioned material layer in described cavity, and the one side of described cushioned material layer contacts with the other end of described depression bar, and another side contacts with described connecting link.
8. high speed dynamic compressive test device according to claim 1, is characterized in that: be provided with sealing ring between described depression bar and described connecting link.
9. high speed dynamic compressive test device according to claim 1, it is characterized in that: described high speed dynamic compressive test device also comprises guiding mechanism, described guiding mechanism comprises the supporting seat being fixedly installed on described erecting bed side, the guide rod be fixedly connected with described supporting seat and is slidably arranged in the sliding sleeve on described guide rod along the length direction of described guide rod, described load maintainer also comprises the web joint be fixedly connected between described depression bar and described pressing plate, and the sidepiece of described web joint is fixedly connected with described sliding sleeve.
10. high speed dynamic compressive test device according to claim 9, it is characterized in that: described guiding mechanism is provided with 2,2 described guiding mechanisms are symmetricly set on two sides of described erecting bed, and the both sides of described web joint are fixedly connected with the described sliding sleeve of both sides respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420600285.8U CN204116148U (en) | 2014-10-17 | 2014-10-17 | High speed dynamic compressive test device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420600285.8U CN204116148U (en) | 2014-10-17 | 2014-10-17 | High speed dynamic compressive test device |
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| CN204116148U true CN204116148U (en) | 2015-01-21 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104237014A (en) * | 2014-10-17 | 2014-12-24 | 清华大学苏州汽车研究院 | High-speed dynamic compression test device |
| CN105445125A (en) * | 2016-01-18 | 2016-03-30 | 苏州达美特汽车测试技术有限公司 | High-speed tensile testing machine-based part impulse test apparatus and method |
| CN110231226A (en) * | 2019-05-21 | 2019-09-13 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | A kind of dynamic compressive test method of rubber seal under electric field action |
| CN111398039A (en) * | 2020-04-30 | 2020-07-10 | 中国飞机强度研究所 | Device and method for testing mechanical properties of seat cushion material under different strain rates |
-
2014
- 2014-10-17 CN CN201420600285.8U patent/CN204116148U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104237014A (en) * | 2014-10-17 | 2014-12-24 | 清华大学苏州汽车研究院 | High-speed dynamic compression test device |
| CN105445125A (en) * | 2016-01-18 | 2016-03-30 | 苏州达美特汽车测试技术有限公司 | High-speed tensile testing machine-based part impulse test apparatus and method |
| CN110231226A (en) * | 2019-05-21 | 2019-09-13 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | A kind of dynamic compressive test method of rubber seal under electric field action |
| CN111398039A (en) * | 2020-04-30 | 2020-07-10 | 中国飞机强度研究所 | Device and method for testing mechanical properties of seat cushion material under different strain rates |
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