CN204116147U - A kind of device of high speed dynamic compressive test - Google Patents
A kind of device of high speed dynamic compressive test Download PDFInfo
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- CN204116147U CN204116147U CN201420600270.1U CN201420600270U CN204116147U CN 204116147 U CN204116147 U CN 204116147U CN 201420600270 U CN201420600270 U CN 201420600270U CN 204116147 U CN204116147 U CN 204116147U
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- 238000012360 testing method Methods 0.000 title claims abstract description 79
- 238000003825 pressing Methods 0.000 claims abstract description 33
- 230000006835 compression Effects 0.000 claims abstract description 11
- 238000007906 compression Methods 0.000 claims abstract description 11
- 238000009434 installation Methods 0.000 claims abstract description 5
- 238000009864 tensile test Methods 0.000 abstract description 9
- 238000012669 compression test Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000011068 loading method Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000002596 correlated effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model relates to a kind of device of high speed dynamic compressive test, comprise for the base of installation testing test specimen and the load maintainer for carrying out compression-loaded to described test specimen, described load maintainer comprises the connecting link that pressing plate for compressing described test specimen and an end are fixedly connected with described pressing plate, described base has the cavity for holding described test specimen and pressing plate and the installing plate for installing described test specimen, the one end part of described connecting link is in described cavity, the other end extends to outside described cavity through described installing plate, and described connecting link is arranged mutually slidably with described installing plate, described load maintainer also comprises the load plate be simultaneously fixedly connected with the other end of described connecting link and the discharge arm be fixedly connected with the another side of described load plate.The device of compression test of the present utility model can directly be applied on high speed tensile test machine, can realize the high speed dynamic compression under 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 device of high speed dynamic compressive test.
Background technology
The mechanical behavior of lightweighting materials under car crass load depends on stress state, as the fracturing mechanics characteristic of the metal materials such as high-strength steel under dynamic load is correlated with material stretching locally, compression, detrusion.Surrender under the nonmetallic materials Dynamic Loadings such as superpolymer and fracturing mechanics behavior counter stress state present more significant correlativity.Therefore, it may be necessary research technique and obtain the dynamic mechanical behavior of material under different stress (as dynamic compression), in order to characterize the mechanics constitutive relation of automotive material comprehensively.At present, for the test of Material compression performance, normally complete on electronic universal tester.But electronic universal tester can only realize quasistatic or compared with the test under low strain dynamic rate.In reality, for vehicle materials such as high-strength steel, plastics, foams, what we more needed concern is then the mechanical characteristic of material under middle and high rate of strain (1 ~ 1000/s) loads.Although drop-weight test platform can realize dynamic compression, owing to there is energy loss in impact process, cannot realize loading sample constant speed, process of the test mid strain rate changes greatly.
Summary of the invention
Technical problem to be solved in the utility model overcomes the deficiencies in the prior art, a kind of device of the high speed dynamic compressive test that can be used on high speed tensile test machine is provided, this device can be used in realizing the dynamic compressive test under basic, normal, high different strain rate, safe and reliable.
For solving the problems of the technologies described above, the utility model adopts following technical scheme:
A kind of device of high speed dynamic compressive test, comprise for the base of installation testing test specimen and the load maintainer for carrying out compression-loaded to described test specimen, described load maintainer comprises the connecting link that pressing plate for compressing described test specimen and an end are fixedly connected with described pressing plate, described base has the cavity for holding described test specimen and pressing plate and the installing plate for installing described test specimen, the one end part of described connecting link is in described cavity, the other end extends to outside described cavity through described installing plate, and described connecting link is arranged mutually slidably with described installing plate, described load maintainer also comprises the load plate that one side is fixedly connected with the other end of described connecting link and the discharge arm be fixedly connected with the another side of described load plate.
Described base also has the web joint that base plate and both ends are connected with base plate with described installing plate respectively, and described cavity is made up of described base plate, web joint and installing plate.
The device of described high speed dynamic compressive test also comprises and is positioned at described cavity and multiple guide rods of being connected with base plate with described installing plate respectively of both ends, and multiple described guide rod is all arranged with described pressing plate mutually slidably through described pressing plate.
Multiple described guide rod is uniformly distributed along the circumferential direction of described pressing plate, and the bearing of trend of described guide rod is identical with the bearing of trend of described connecting link.
Described load plate, installing plate, pressing plate and base plate distribute successively along the bearing of trend of described connecting link.
Described connecting link is provided with multiple, and multiple described connecting link is uniformly distributed along the circumferential direction of described pressing plate.
Symmetry two side of described discharge arm offers breach.
Be fixedly connected with the first load bar between one end of described discharge arm and described load plate, the other end of described discharge arm is fixedly connected with the second load bar.
The relative two sides of described installing plate is respectively arranged with the first cushion pad and the second cushion pad, and described first cushion pad is between described installing plate and load plate, and described second cushion pad is between described installing plate and pressing plate.
Described installing plate is fixedly connected with erecting bed, and described test specimen is arranged on described erecting bed.
Due to the enforcement of above technical scheme, the utility model compared with prior art has following advantages:
The device of the utility model high speed dynamic compressive test has discharge arm, for different materials for test, can design different discharge arm structures and the failure load of correspondence, avoid damage equipment.
The device of the utility model high speed dynamic compressive test can be combined with high speed tensile test machine, can realize the dynamic compressive test under basic, normal, high different strain rate.
The apparatus structure of the utility model high speed dynamic compressive test is simple, and low cost of manufacture is safe and reliable.
Accompanying drawing explanation
Fig. 1 is the front view of the device of the utility model high speed dynamic compressive test;
Fig. 2 be in Fig. 1 A-A to cut-open view;
Fig. 3 be in Fig. 1 B-B to cut-open view;
Fig. 4 is the stereographic map of the base of the device of the utility model high speed dynamic compressive test;
Fig. 5 is the stereographic map (not showing load maintainer) of the device of the utility model high speed dynamic compressive test;
Fig. 6 is the side view (not showing load maintainer) of the device of the utility model high speed dynamic compressive test;
Fig. 7 is the stereographic map of the load maintainer of the device of the utility model high speed dynamic compressive test;
In figure: 1, base; 101, installing plate; 102, web joint; 103, base plate; 104, stiffening plate; 105, cavity; 2, load maintainer; 201, pressing plate; 202, connecting link; 203, load plate; 204, discharge arm; 205, the first load bar; 206, the second load bar; 207, breach; 3, guide rod; 4, bearing; 5, the first cushion pad; 6, the second cushion pad; 7, test specimen; 8, erecting bed.
Embodiment
Below in conjunction with Figure of description, the utility model is described further:
As shown in accompanying drawing 1 ~ 7, a kind of device of high speed dynamic compressive test, for high speed tensile test machine, this device comprises for the base 1 of installation testing test specimen 7 and the load maintainer 2 for carrying out compression-loaded to test specimen 7, load maintainer 2 comprises the connecting link 202 that pressing plate 201 and an end for compression specimens 7 are fixedly connected with pressing plate 201, base 1 has the cavity 105 for holding test specimen 7 and pressing plate 201 and the installing plate 101 for installing test specimen 7, the one end part of connecting link 202 is in cavity 105, the other end extends to outside cavity 105 through installing plate 101, and connecting link 202 is arranged slidably with installing plate 101 phase, the discharge arm that the another side that load maintainer 2 also comprises a load plate 203 and end and the load plate 203 be simultaneously fixedly connected with the other end of connecting link 202 is fixedly connected.
Base 1 also has the web joint 102 that base plate 103 and both ends are connected with base plate 103 with installing plate 101 respectively, and cavity 105 is made up of base plate 103, web joint 102 and installing plate 101.
The device of the utility model high speed dynamic compressive test also comprises and is positioned at cavity 105 and multiple guide rods 3 of being connected with base plate 103 with installing plate 101 respectively of both ends, and multiple guide rod 3 is all arranged with pressing plate 201 phase slidably through pressing plate 201.Specifically be provided with 3 guide rods 3, pressing plate 201 is slided on the length direction of guide rod 3 by bearing 4; 3 guide rods 3 are uniformly distributed along the circumferential direction of pressing plate 201, and the bearing of trend of guide rod 3 is identical with the bearing of trend of connecting link 202.
Load plate 203, installing plate 101, pressing plate 201 and base plate 103 distribute successively at the bearing of trend of connecting link 202.
In the device of the utility model high speed dynamic compressive test, connecting link 202 is provided with multiple, specifically can be provided with 3, and 3 connecting links 202 are uniformly distributed along the circumferential direction of pressing plate 201.
Symmetry two side of the discharge arm 204 of the device of the utility model high speed dynamic compressive test offers breach 207.In order to change discharge arm 204 better, between an end and load plate 203 of discharge arm 204, be fixedly connected with the first load bar 205, the other end of discharge arm 204 is fixedly connected with the second load bar 206.
Impact in order to avoid the rigid contact between load plate 203 and installing plate 101, between pressing plate 201 and installing plate 101 and damage device and measuring system, the first cushion pad 5 and the second cushion pad 6 is respectively arranged with on the relative two sides of installing plate 101, first cushion pad 5 is between load plate 203 and installing plate 101, and the second cushion pad 6 is between pressing plate 201 and installing plate 101.
For the ease of the installation of test specimen 7 on installing plate 101 and dismounting, installing plate 101 is bolted to connection an erecting bed 8, and test specimen 7 is bolted or bonding mode is arranged on erecting bed 8.
Principle of work of the present utility model:
The base plate 103 of base 1 is bolted to connection in the T-slot of the testing table of high speed tensile test machine, second load bar 206 is fixedly connected on the chuck of high speed tensile test machine, erecting bed 8 is bolted on the installing plate 101 of base 1, and test specimen 7 is arranged on erecting bed 8.
After on-test, the second load bar 206 drives load plate 203 to move upward, and then band dynamic pressure plate 201 is moved upward along guide rod 3 by bearing 4, realizes the dynamic compression to test specimen 7.And between the first load bar 205 and the second load bar 206, be also connected with discharge arm 204, and there is the Self-tipping function of load restriction, can protection test equipment.When compressive load reaches the failing load of discharge arm 204, can there is rupture failure in discharge arm 204, thus realize the unloading to test specimen 7, protection test equipment.
In sum, the device of the utility model high speed dynamic compressive test has following advantage:
1) device of the utility model high speed dynamic compressive test is combined with high speed tensile test machine, can realize the dynamic compressive test under basic, normal, high different strain rate;
2) device of the utility model high speed dynamic compressive test is for different materials, can design different discharge arm structures and the failure load of correspondence, avoid damage equipment;
3) high speed tensile test machine is turned " drawing " by the device of the utility model high speed dynamic compressive test is " pressure ", is directly loaded by high speed tensile test machine, simple to operate;
4) apparatus structure of the utility model high speed dynamic compressive test is simple, and low cost of manufacture is safe and reliable.
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. the device of a high speed dynamic compressive test, comprise for the base of installation testing test specimen and the load maintainer for carrying out compression-loaded to described test specimen, described load maintainer comprises the connecting link that pressing plate for compressing described test specimen and an end are fixedly connected with described pressing plate, it is characterized in that: described base has the cavity for holding described test specimen and pressing plate and the installing plate for installing described test specimen, the one end part of described connecting link is in described cavity, the other end extends to outside described cavity through described installing plate, and described connecting link is arranged mutually slidably with described installing plate, described load maintainer also comprises the load plate that one side is fixedly connected with the other end of described connecting link and the discharge arm be fixedly connected with the another side of described load plate.
2. the device of high speed dynamic compressive test according to claim 1, is characterized in that: described base also has the web joint that base plate and both ends are connected with base plate with described installing plate respectively, and described cavity is made up of described base plate, web joint and installing plate.
3. the device of high speed dynamic compressive test according to claim 2, it is characterized in that: the device of described high speed dynamic compressive test also comprises and is positioned at described cavity and multiple guide rods of being connected with base plate with described installing plate respectively of both ends, multiple described guide rod is all arranged with described pressing plate mutually slidably through described pressing plate.
4. the device of high speed dynamic compressive test according to claim 3, is characterized in that: multiple described guide rod is uniformly distributed along the circumferential direction of described pressing plate, and the bearing of trend of described guide rod is identical with the bearing of trend of described connecting link.
5. the device of high speed dynamic compressive test according to claim 2, is characterized in that: described load plate, installing plate, pressing plate and base plate distribute successively along the bearing of trend of described connecting link.
6. the device of high speed dynamic compressive test according to claim 1, is characterized in that: described connecting link is provided with multiple, multiple described connecting link is uniformly distributed along the circumferential direction of described pressing plate.
7. the device of high speed dynamic compressive test according to claim 1, is characterized in that: symmetry two side of described discharge arm offers breach.
8. the device of high speed dynamic compressive test according to claim 7, is characterized in that: be fixedly connected with the first load bar between an end of described discharge arm and described load plate, and the other end of described discharge arm is fixedly connected with the second load bar.
9. the device of high speed dynamic compressive test according to claim 1, it is characterized in that: the relative two sides of described installing plate is respectively arranged with the first cushion pad and the second cushion pad, described first cushion pad is between described installing plate and load plate, and described second cushion pad is between described installing plate and pressing plate.
10. the device of high speed dynamic compressive test according to claim 1, it is characterized in that: described installing plate is fixedly connected with erecting bed, described test specimen is arranged on described erecting bed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420600270.1U CN204116147U (en) | 2014-10-17 | 2014-10-17 | A kind of device of high speed dynamic compressive test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420600270.1U CN204116147U (en) | 2014-10-17 | 2014-10-17 | A kind of device of high speed dynamic compressive test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204116147U true CN204116147U (en) | 2015-01-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420600270.1U Withdrawn - After Issue CN204116147U (en) | 2014-10-17 | 2014-10-17 | A kind of device of high speed dynamic compressive test |
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| Country | Link |
|---|---|
| CN (1) | CN204116147U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104237015A (en) * | 2014-10-17 | 2014-12-24 | 清华大学苏州汽车研究院 | High-speed dynamic compression testing device |
-
2014
- 2014-10-17 CN CN201420600270.1U patent/CN204116147U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104237015A (en) * | 2014-10-17 | 2014-12-24 | 清华大学苏州汽车研究院 | High-speed dynamic compression testing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150121 Effective date of abandoning: 20160817 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |