CN110567799A - Damping device of material dynamic mechanics test system - Google Patents
Damping device of material dynamic mechanics test system Download PDFInfo
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- CN110567799A CN110567799A CN201910864916.4A CN201910864916A CN110567799A CN 110567799 A CN110567799 A CN 110567799A CN 201910864916 A CN201910864916 A CN 201910864916A CN 110567799 A CN110567799 A CN 110567799A
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- upper clamping
- damping device
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- 238000013016 damping Methods 0.000 title claims abstract description 36
- 238000012360 testing method Methods 0.000 title claims abstract description 34
- 239000000463 material Substances 0.000 title claims abstract description 16
- 241000555745 Sciuridae Species 0.000 claims description 22
- 230000003139 buffering effect Effects 0.000 claims description 11
- 238000004154 testing of material Methods 0.000 claims 7
- 238000005553 drilling Methods 0.000 claims 2
- 230000035939 shock Effects 0.000 abstract description 9
- 239000006185 dispersion Substances 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 7
- 238000009864 tensile test Methods 0.000 abstract description 5
- 230000010356 wave oscillation Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 13
- 230000008569 process Effects 0.000 description 11
- 238000004080 punching Methods 0.000 description 7
- 230000009471 action Effects 0.000 description 4
- 229920001875 Ebonite Polymers 0.000 description 3
- 229920010768 PP TD40 Polymers 0.000 description 3
- 229920006712 PP-TD40 Polymers 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/023—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/08—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with rubber springs ; with springs made of rubber and metal
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/04—Chucks
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0017—Tensile
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/04—Chucks, fixtures, jaws, holders or anvils
- G01N2203/0441—Chucks, fixtures, jaws, holders or anvils with dampers or shock absorbing means
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Aviation & Aerospace Engineering (AREA)
- Acoustics & Sound (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Combustion & Propulsion (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention relates to a damping device of a material dynamic mechanical testing system, which comprises an upper clamping piece, a sample piece, a lower clamping piece and a fixing piece which are fixedly connected from top to bottom in sequence; the upper clamping piece comprises an upper clamping block, an upper clamping sleeve and an outer locking piece, wherein the upper clamping block, the upper clamping sleeve and the outer locking piece are matched and locked from inside to outside; the lower clamping piece comprises a lower clamping block and a lower locking sleeve which are matched and locked from an inner inclined plane to an outer inclined plane, and the lower locking sleeve is fixedly connected with the fixing piece; the upper end part of the sample piece is clamped and fixed by the upper clamping block, and the lower end part of the sample piece is clamped and fixed by the lower clamping block; the upper clamping block and/or the lower clamping block comprise buffer layers with inclined outer side surfaces. The device can effectively eliminate the shock wave oscillation effect of the high-speed tensile test of the plate-shaped material, and simultaneously solves the problems that the curve fluctuates greatly and the dispersion is large.
Description
Technical Field
The invention belongs to the technical field of material performance testing devices, and particularly relates to a damping device of a material dynamic mechanical testing system.
Background
at present, a quasi-static stress state test and a high-speed dynamic stress state test are mainly used in a material test, for the high-speed dynamic stress state test, the national standard GB/T30069-2016 is used for recording related test devices, wherein a sample, a wedge-shaped tooth block, a buffer and an actuator are all in rigid connection, the clamping stability of the sample is poor, shock wave vibration in the actuating process of the sample can completely act on a load sensor, so that the data dispersion is increased, and the sample cannot be directly used for engineering. However, with the improvement of the NCAP regulations in various countries and the improvement of the requirements on the use of materials, the requirements on the dynamic mechanical property test of the materials are more and more, the large fluctuation of the curve under high-speed stretching is eliminated, and the reduction of the data dispersion is a necessary requirement for meeting the test conditions. Therefore, the existing national standard testing device cannot meet the test of eliminating the large fluctuation of the curve and reducing the data dispersion under high-speed stretching.
disclosure of Invention
The invention provides a damping device of a material dynamic mechanical testing system, aiming at the related problems in the background art, the damping device can effectively eliminate shock wave oscillation effect of high-speed tensile test of a plate-shaped material, and simultaneously solves the problems of large fluctuation of a curve and large dispersion.
in order to solve the technical problems, the invention adopts the technical scheme that:
A damping device of a material dynamic mechanics testing system comprises an upper clamping piece, a sample piece, a lower clamping piece and a fixing piece which are fixedly connected from top to bottom in sequence;
The upper clamping piece comprises an upper clamping block, an upper clamping sleeve and an outer locking piece, wherein the upper clamping block, the upper clamping sleeve and the outer locking piece are matched and locked from inside to outside;
the lower clamping piece comprises a lower clamping block and a lower locking sleeve which are matched and locked from an inner inclined plane to an outer inclined plane, and the lower locking sleeve is fixedly connected with the fixing piece;
The upper end part of the sample piece is clamped and fixed by the upper clamping block, and the lower end part of the sample piece is clamped and fixed by the lower clamping block;
The upper clamping block and/or the lower clamping block comprise buffer layers with inclined outer side surfaces.
furthermore, the outer locking piece is a squirrel cage, and a through groove with an inverted isosceles trapezoid cross section and matched with the periphery of the upper locking sleeve is arranged at the lower part of the squirrel cage.
Furthermore, the upper part of the squirrel cage is rigidly and fixedly connected with the actuator.
Furthermore, the upper clamping block is of a wedge-shaped block structure, the upper clamping block comprises a main body layer and a buffer layer which are arranged inside and outside, and the outer surface of the buffer layer is a wedge-shaped inclined plane.
Further, through the bolted connection that punches between main part layer, buffer layer and the appearance, be equipped with the unthreaded via hole on main part layer and the appearance, the bolt is located this unthreaded via hole.
Furthermore, the upper surface of the buffer layer is provided with a buffer strut.
further, the lower clamping piece further comprises a mounting seat, the lower clamping block is of a wedge-shaped block structure, the lower portions of the two oppositely-arranged wedge-shaped blocks are located in the mounting seat, and the lower locking sleeve is fixedly sleeved on the periphery of the lower clamping block and the mounting seat.
Further, the lower clamping block is connected with the sample piece through a punching bolt, a non-threaded through hole is formed in the lower clamping block and the sample piece, and the bolt is located in the non-threaded through hole.
Further, the mounting includes from top to bottom bolt fixed connection's buffering filter block, load sensor and lower flange in order.
The beneficial effects created by the invention are as follows:
(1) The through groove of the squirrel cage in the upper clamping piece, the upper clamping sleeve and the upper clamping block are all designed with wedge-shaped inclined planes, and the upper clamping sleeve, the upper clamping block and the sample piece can be self-locked in the process that the squirrel cage moves upwards relative to other parts; the lower locking sleeve of the lower clamping piece and the lower clamping block can also form self-locking in the testing process, so that the upper clamping block and the lower clamping block can stably clamp two ends of a sample piece;
(2) The air cushion buffer damping block is positioned between the sample piece and the wedge-shaped buffer block, so that the rigid connection of the squirrel cage, the upper locking sleeve, the self-locking wedge-shaped buffer block and the sample piece is blocked, and the high-frequency oscillation mechanical waves are damped and filtered, so that the sample piece is more smooth and stable in action, and the problems of large fluctuation of a result curve and large dispersion are solved;
(3) The buffering pillar is made for hard rubber material, and experimental back of accomplishing, the sample fracture, wedge buffer block, air cushion buffering damping and the first half of sample can upward movement under the inertial action and finally with the squirrel cage in the collision of upper portion, play buffering separation effect at the collision in-process, prevent structural damage.
drawings
FIG. 1 is a schematic plan view of a shock absorber according to an embodiment;
FIG. 2 is a schematic perspective view of a shock absorber according to an embodiment;
FIG. 3 is a schematic structural diagram of an embodiment of upper and lower clamping members (not shown with squirrel cage and lower locking sleeve of the upper clamping member);
FIG. 4 is a schematic structural view of the upper and lower clamping blocks in the embodiment;
FIG. 5 shows the test result of the test apparatus in GB/T30069-2016 on the high speed stretching of a plastic (PP-TD40) sample;
FIG. 6 shows the test results of the shock absorbing device of the present invention for high-speed stretching of a plastic (PP-TD40) sample;
FIG. 7 shows the result of the high-speed stretching of the steel sample by the damping device according to the present invention;
FIG. 8 shows the result of the high-speed tensile test of the sample of aluminum alloy material by the damping device in the invention.
In the figure: 1. an upper clamping member; 11. a mouse cage; 12. an upper locking sleeve; 13. an upper clamping block; 131. a body layer; 132. a buffer layer; 133. a cushion strut; 2. a lower clamping member; 21. a lower locking sleeve; 22. a lower clamping block; 23. a mounting seat; 3. a fixing member; 31. a buffer filter block; 32. a load sensor; 33. a lower flange; 4. and (5) sampling.
Detailed Description
It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings, which are merely for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, the meaning of "a plurality" is two or more unless otherwise specified.
In the description of the invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "connected" are to be construed broadly, e.g. as being fixed or detachable or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art through specific situations.
The invention will be described in detail with reference to the following embodiments with reference to the attached drawings.
In some embodiments, a damping device of a material dynamic mechanical testing system comprises an upper clamping member 1, a sample member 4, a lower clamping member 2 and a fixing member 3 which are fixedly connected from top to bottom in sequence.
In some embodiments, the upper clamping member 1 includes a squirrel cage 11, an upper clamping sleeve 12, and two upper clamping blocks 13 located in the upper clamping sleeve 12 and arranged oppositely, the upper portion of the squirrel cage 11 is rigidly connected to the actuator, the lower portion of the squirrel cage 11 is provided with a through slot with an inverted isosceles trapezoid cross section, the upper clamping block 13 is in a wedge-shaped block structure, the upper clamping block 13 includes a main body layer 131 and a buffer layer 132 arranged inside and outside, the outer surface of the buffer layer 132 is a wedge-shaped inclined surface, the upper surface of the buffer layer 132 is provided with a buffer pillar 133, and the upper end portion of the sample 4 is clamped and fixed by the two upper clamping blocks 13; the outer surface of the upper locking sleeve 12 is matched with the through groove, and the inner surface of the upper locking sleeve is matched with the upper clamping block 13.
That is, in order to stably clamp the upper end of the sample 4, the through groove of the squirrel cage 11, the upper clamping sleeve 12 and the upper clamping block 13 in this embodiment are all designed to be inclined/wedge-shaped, and the through groove of the squirrel cage 11 can form self-locking of the upper clamping sleeve 12, the upper clamping block 13 and the sample 4 during the upward movement process relative to the rest of the components.
In addition, in order to achieve the purpose of shock absorption in the testing process, the following three designs are at least performed in the embodiment:
Designing a first mode: the main body layer 131 is an air cushion damping block, and the buffer layer 132 is a self-locking wedge-shaped buffer block; go up holder 1 through auto-lock wedge buffer block and cushion buffering damping piece, reduce squirrel cage 11 and last locking cover 12 contact the back and to the high-speed shock wave vibrations influence of sample 4, reach the cushioning effect, improve test stability. And, the air cushion buffering damping piece is located between sample 4 and the wedge buffer piece, has blockked squirrel cage 11, last locking collar 12, auto-lock wedge buffer piece and sample 4's rigid connection, plays damping, filtering action to high frequency shock mechanical wave for it is more level and smooth, stable to actuate sample 4, eliminates the problem that the result curve fluctuates by a wide margin, the dispersion is bigger than normal.
In addition, the thickness and the size of the self-locking wedge-shaped buffer block and the air cushion buffer damping block can be adjusted according to needs, so that the optimal buffer damping effect is achieved, and the testing precision is improved.
Designing two: the self-locking wedge-shaped buffer block, the air cushion buffer damper and the sample piece 4 are connected through a punching bolt, a thread-free through hole is formed in the air cushion buffer damper block and the sample piece 4, and the length of the bolt is smaller than the total length of the through hole; in the self-locking process, the punching bolt can further extend towards the direction of the self-locking wedge-shaped buffer block in the through hole of the two air cushion buffer damping blocks; the matching of the punching bolt and the unthreaded through hole is more suitable for being applied to the damping operation of the mechanical test of the sample piece 4 than the matching of a conventional bolt threaded hole.
designing three steps: lubricating grease is smeared between the through grooves and the upper locking sleeve 12, so that friction between the upper locking sleeve 12 and the through grooves of the squirrel cage 11 is reduced, structural stability is guaranteed, and testing precision is improved.
In some embodiments, the lower clamping member 2 includes a lower locking sleeve 21, a lower clamping block 22 and a mounting seat 23, the lower clamping block 22 is in a wedge-shaped block structure, a lower portion of the oppositely arranged wedge-shaped block is located in the mounting seat 23, and a lower end portion of the sample piece 4 is clamped and fixed by the two lower clamping blocks 22; the lower locking sleeve 21 is sleeved on the periphery of the lower clamping block 22 and the mounting seat 23, and the lower locking sleeve 21 is fixedly connected with the mounting seat 23 through a bolt.
in the test process, the lower clamping block 22 has upward movement inertia in the lower locking sleeve 21, so that the self-locking effect is achieved.
The lower clamping block 22 is connected with the sample piece 4 through a punching bolt, the lower clamping block 22 and the sample piece 4 are both provided with unthreaded through holes, the unthreaded through holes are not communicated on the lower clamping block 22, and the length of the bolt is smaller than the total length of the through holes. In the self-locking process, the punching bolt can further extend in the direction of the lower locking sleeve 21 in the through holes of the two lower clamping blocks 22; the matching of the punching bolt and the unthreaded through hole is more suitable for being applied to the damping operation of the mechanical test of the sample piece 4 than the matching of a conventional bolt threaded hole.
in some embodiments, the fixing member 3 includes a buffering filter block 31, a load sensor 32 and a lower flange 33, which are sequentially and fixedly connected by bolts from top to bottom, the mounting seat 23 is fixedly connected with the buffering filter block 31 by bolts, the buffering filter block 31 is located between the lower clamping member 2 and the load sensor 32, and is a hard rubber cushion block, so that attenuation of high-frequency mechanical waves transmitted downwards is increased, and a buffering and damping effect is achieved.
In some embodiments, the load cell 32 is preferably of the Kistler 9071a type and functions to obtain an in-process load value.
The test procedure of the damping device in the above embodiment is as follows: the squirrel cage 11 firstly moves downwards, starts to accelerate upwards after reaching a corresponding position, and contacts with the upper locking sleeve 12 after reaching a set speed to start the actuation of the high-speed dynamic tensile test; in the process that the through groove of the squirrel cage 11 is in contact with the upper locking sleeve 12, the upper locking sleeve 12 and the upper clamping block 13 lock the sample piece 4 together (including a self-locking process), the lower locking sleeve 21 and the lower clamping block 22 lock the sample piece 4 together, and the test is completed after the sample piece 4 is broken.
After the test is completed, the sample piece 4 is broken, the wedge-shaped buffer block, the air cushion buffer damping and the upper half part of the sample piece 4 move upwards under the action of inertia and finally collide with the upper part in the squirrel cage 11, the buffer strut 133 is made of hard rubber, the buffer blocking effect is achieved in the collision process, and structural damage is prevented.
In some embodiments, the damping device and the testing device in GB/T30069-2016 are used for carrying out comparative testing on a plastic (PP-TD40) sample, and the results are shown in FIGS. 5 and 6, and it is clear from the results that the damping device sufficiently eliminates the problems of large fluctuation and large dispersion of the curve; and the damping device has the same good high-speed tensile test result for steel and aluminum alloy material samples, as shown in fig. 7 and 8, the data can provide reliable basis for subsequent engineering application.
the inclined plane involved in the invention at least comprises two conditions of a plane inclined plane and an arc inclined plane.
the above description is for the purpose of describing particular embodiments of the present invention, but the present invention is not limited to the particular embodiments described herein. All equivalent changes and modifications made within the scope of the invention shall fall within the scope of the patent coverage of the invention.
Claims (9)
1. A damping device of a material dynamic mechanics testing system is characterized by comprising an upper clamping piece, a sample piece, a lower clamping piece and a fixing piece which are fixedly connected from top to bottom in sequence;
the upper clamping piece comprises an upper clamping block, an upper clamping sleeve and an outer locking piece, wherein the upper clamping block, the upper clamping sleeve and the outer locking piece are matched and locked from inside to outside;
The lower clamping piece comprises a lower clamping block and a lower locking sleeve which are matched and locked from an inner inclined plane to an outer inclined plane, and the lower locking sleeve is fixedly connected with the fixing piece;
the upper end part of the sample piece is clamped and fixed by the upper clamping block, and the lower end part of the sample piece is clamped and fixed by the lower clamping block;
The upper clamping block and/or the lower clamping block comprise buffer layers with inclined outer side surfaces.
2. The damping device for the dynamic mechanical material testing system as claimed in claim 1, wherein the outer locking member is a squirrel cage, and a through groove having an inverted isosceles trapezoid cross section and being matched with the periphery of the upper locking sleeve is formed in the lower portion of the squirrel cage.
3. the damping device for the dynamic mechanical material testing system as claimed in claim 1, wherein the upper portion of the squirrel cage is rigidly and fixedly connected to the actuator.
4. The damping device for the dynamic mechanical material testing system as claimed in claim 1, wherein the upper clamping block has a wedge-shaped structure, the upper clamping block includes a main body layer and a buffer layer disposed inside and outside, and an outer surface of the buffer layer is a wedge-shaped slope.
5. the damping device for the dynamic mechanical material testing system as claimed in claim 4, wherein the main body layer, the buffer layer and the sample are connected by a hole-drilling bolt, the main body layer and the sample are provided with a non-threaded through hole, and the bolt is located in the non-threaded through hole.
6. the damping device for the dynamic mechanical material testing system as claimed in claim 4, wherein the upper surface of the buffer layer is provided with a buffer pillar.
7. The damping device for the dynamic mechanical material testing system as claimed in claim 1, wherein the lower clamping member further comprises a mounting seat, the lower clamping block is a wedge-shaped block structure, lower portions of two opposite wedge-shaped blocks are located in the mounting seat, and the lower locking sleeve is fixedly sleeved on the lower clamping block and the periphery of the mounting seat.
8. The damping device for the dynamic mechanical material testing system according to claim 1 or 7, wherein the lower clamping block is connected with the sample through a hole-drilling bolt, the lower clamping block and the sample are provided with a non-threaded through hole, and the bolt is located in the non-threaded through hole.
9. The damping device of a material dynamic mechanical testing system according to claim 1, wherein the fixing member comprises a buffering filter block, a load sensor and a lower flange which are fixedly connected by bolts from top to bottom in sequence.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910864916.4A CN110567799A (en) | 2019-09-12 | 2019-09-12 | Damping device of material dynamic mechanics test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910864916.4A CN110567799A (en) | 2019-09-12 | 2019-09-12 | Damping device of material dynamic mechanics test system |
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| Publication Number | Publication Date |
|---|---|
| CN110567799A true CN110567799A (en) | 2019-12-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910864916.4A Pending CN110567799A (en) | 2019-09-12 | 2019-09-12 | Damping device of material dynamic mechanics test system |
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| CN (1) | CN110567799A (en) |
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| CN109357932A (en) * | 2018-11-29 | 2019-02-19 | 中汽研（天津）汽车工程研究院有限公司 | A kind of high-speed stretch clamping device of auto plastics |
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| CN211042917U (en) * | 2019-09-12 | 2020-07-17 | 中汽研（天津）汽车工程研究院有限公司 | Damping device of material dynamic mechanics test system |
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2019
- 2019-09-12 CN CN201910864916.4A patent/CN110567799A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105092366A (en) * | 2015-09-11 | 2015-11-25 | 湖州华科建设工程质量检测有限公司 | Stretching mechanism with buffering protection device and used for stretching testing of steel plate |
| CN105115819A (en) * | 2015-09-18 | 2015-12-02 | 中国航空工业集团公司沈阳发动机设计研究所 | Fatigue test clamp |
| CN105751104A (en) * | 2016-04-18 | 2016-07-13 | 西南交通大学 | Improved clamping mechanism of fatigue testing machine for in-situ imaging of synchronous radiation light source |
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| CN206459901U (en) * | 2016-12-26 | 2017-09-01 | 海盐常绿标准件有限公司 | A kind of drawbench |
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| CN109374406A (en) * | 2018-12-28 | 2019-02-22 | 西北工业大学 | A kind of sample and fixture for minor diameter pipe tension test |
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