CN207850807U - A kind of buffer unit for composite material tension test - Google Patents
A kind of buffer unit for composite material tension test Download PDFInfo
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- CN207850807U CN207850807U CN201721717518.2U CN201721717518U CN207850807U CN 207850807 U CN207850807 U CN 207850807U CN 201721717518 U CN201721717518 U CN 201721717518U CN 207850807 U CN207850807 U CN 207850807U
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- 238000012360 testing method Methods 0.000 title claims abstract description 48
- 239000002131 composite material Substances 0.000 title claims abstract description 20
- 238000006073 displacement reaction Methods 0.000 claims description 6
- 238000004154 testing of material Methods 0.000 abstract description 16
- 238000010586 diagram Methods 0.000 description 11
- 230000003139 buffering effect Effects 0.000 description 9
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000009527 percussion Methods 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000009864 tensile test Methods 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model provides a kind of buffer unit for composite material tension test, including：Main body box, first order top plate and second level top plate；The upper center of main body box is provided with fork, is provided with through-hole in the middle part of lower end, is internally provided with cavity；First order top plate is arranged in the cavity, and bottom surface is provided with lower fork；Lower fork passes through the through-hole on main body box to be stretched out from the bottom of main body box；At least two first order springs are provided on first order top plate；The both ends of first order spring are connect with the top of the upper surface of first order top plate and cavity inner wall respectively；Second level top plate is arranged in the top of first order top plate；At least two second level springs are provided on the top plate of the second level；The both ends of second level spring are connect with the top of the upper surface of second level top plate and cavity inner wall respectively.The impact force that can effectively avoid the upper grip of Material Testing Machine using the utility model causes damage even to destroy test specimen.
Description
Technical field
This application involves composite material tension test technical fields more particularly to a kind of for composite material tension test
Buffer unit.
Background technology
When carrying out composite material tension test, non-damaging test method can be used to carry out tension test.Above-mentioned non-damage
The core for hindering test method is：Within entire digestion period, the test of elasticity modulus is carried out using identical test sample.Cause
This, it is ensured that it is the key that whether success of the test successfully that test specimen, which is not destroyed, during tension test.
In the prior art, usually Material Testing Machine is used to carry out tension test to composite material.Fig. 1 is the prior art
Device connection diagram when middle progress composite material tension test.As shown in Figure 1, the upper grip 12 of Material Testing Machine and experiment
Machine counter-force crossbeam 11 is fixedly connected；The lower collet 13 of Material Testing Machine is fixed on pedestal 14；Testing machine counter-force crossbeam 11 and bottom
Seat 14 jacks column 15 by testing machine and connects.
When carrying out composite material tension test, the upper grip 12 of Material Testing Machine and lower collet 13 clamp sample 10 respectively
Both ends；Then, the upper grip 12 of Material Testing Machine slowly rises, and provides and draws high power accordingly, is stretched to sample 10, from
And carry out corresponding tension test.
In the prior art, often used Material Testing Machine (for example, universal testing machine) can be realized a certain
Provide that automatic or manual stops when deformation values or value of thrust.But when carrying out above-mentioned composite material tension test, when material tries
When the machine of testing reaches specified pulling force and stops, testing machine counter-force crossbeam 11 and lower collet 13 will stop immediately, and upper grip 12 due to
The reason of inertia, will also continue that sample 10 is driven to move upwards.Moreover, when upper grip 12 is from when being pulled up state and stopping suddenly,
Upper grip 12 will generate sample 10 larger impact force.The impact force often causes to damage to test specimen, or even destroys test specimen,
So as to cause the failure of composite material tension test.
Thus, it can be known that the impact force for how being effectively prevented from above-mentioned upper grip causes damage even to destroy test specimen,
Through as a urgent problem needed to be solved in this field.
Utility model content
In view of this, the utility model provides a kind of buffer unit for composite material tension test, so as to
The impact force for being effectively prevented from the upper grip of Material Testing Machine causes damage even to destroy test specimen.
What the technical solution of the utility model was specifically realized in：
A kind of buffer unit for composite material tension test, the buffer unit include：Main body box, first order top plate and
Second level top plate；
The upper center of the main body box is provided with fork；It is provided with through-hole in the middle part of the lower end of the main body box；Institute
That states main body box is internally provided with cavity；
The first order top plate is arranged in the cavity, and the bottom surface of the first order top plate is provided with lower fork；Institute
Through-hole of the lower fork on the main body box is stated to stretch out from the bottom of the main body box；It is provided on the first order top plate
At least two first order springs；The both ends of the first order spring respectively with the upper surface of the first order top plate and the sky
The top of cavity wall connects；
The second level top plate is arranged is provided at least two on the top of the first order top plate, the second level top plate
Root second level spring；The both ends of the second level spring respectively with the upper surface of the second level top plate and the cavity inner wall
Top connection.
Preferably, being still further comprised in the buffer unit：Third level top plate；
The third level top plate is arranged is provided at least two on the top of the second level top plate, third level top plate
Three-level spring；The both ends of the third level spring respectively with the upper surface of the third level top plate and the top of the cavity inner wall
Portion connects.
Preferably, being provided with displacement confinement block at the top of the cavity inner wall of the main body box of the buffer unit.
Preferably, in addition to first order top plate, the both ends of other top plates at different levels pass through drag-line and the cavity inner wall respectively
Top connects.
Preferably, the both ends of the first order top plate are respectively arranged at least one bayonet lock；
Card slot corresponding with the bayonet lock is respectively arranged in the two side walls of the cavity.
Preferably, each spring in springs at different levels is symmetrical each along the length direction of the main body box.
Preferably, being provided with 4 first order springs on the first order top plate；
2 second level springs are provided on the second level top plate；
2 third level springs are provided on the third level top plate.
Preferably, being additionally provided with the first pin hole passed through for bolt on the upper fork.
Preferably, the bottom of the lower fork is provided with the accommodating chamber being inserted into for the upper grip；The lower fork
On be additionally provided with the second pin hole passed through for bolt.
As above as it can be seen that in the buffer unit for composite material tension test in the present invention, due to being provided with
Top plates at different levels and spring at different levels, therefore there is good energy absorption capability, i.e., it is i.e. absorbable after the displacement Jing Guo very little
Many impact energys, the percussion so as to be generated when effectively stopping to Material Testing Machine play buffering well and make
With the upper grip that can be effectively prevented Material Testing Machine makes test specimen from the percussion being pulled up when state stops suddenly
At damage, but also to avoid because of excessive buffer distance sample can be destroyed.
Description of the drawings
Fig. 1 is device connection diagram when carrying out composite material tension test in the prior art.
Fig. 2 is the schematic diagram of the Material Testing Machine for being provided with buffer unit in the utility model embodiment.
Fig. 3 is the stereoscopic schematic diagram of the buffer unit in the utility model embodiment.
Fig. 4 is the vertical view of the buffer unit in the utility model embodiment.
Fig. 5 is the vertical profile figure of the buffer unit in the utility model embodiment.
Fig. 6 is the transverse cross-sectional view of the buffer unit in the utility model embodiment.
Fig. 7 is the vertical view comparison of the first order top plate, second level top plate and third level top plate in the utility model embodiment
Schematic diagram.
Fig. 8 for the first order groups of springs in the buffer unit in the utility model embodiment by compression second and third grade of bullet
Schematic diagram when spring group is uncompressed.
Fig. 9 for first and second grade of groups of springs in the buffer unit in the utility model embodiment by compression third level bullet
Schematic diagram when spring group is uncompressed.
Figure 10 is showing when first, second and third grade of groups of springs in the buffer unit in the utility model embodiment is compressed
It is intended to.
When Figure 11 is that first, second and third grade of groups of springs in the buffer unit in the utility model embodiment is compressed completely
Schematic diagram.
Specific implementation mode
To make the technical solution of the utility model and advantage be more clearly understood, below in conjunction with drawings and the specific embodiments,
The utility model is described in further detail.
Pull head causes damage even to destroy test specimen from the percussion being pulled up when state stops suddenly in order to prevent
Test specimen proposes a kind of buffer unit for composite material tension test in the utility model.
Fig. 3 is the stereoscopic schematic diagram of the buffer unit in the utility model embodiment, and Fig. 4 is in the utility model embodiment
Buffer unit vertical view, Fig. 5 be the utility model embodiment in buffer unit vertical profile figure, Fig. 6 be this practicality
The transverse cross-sectional view of buffer unit in new embodiment.As illustrated in figures 3-6, in the utility model embodiment for compound
The buffer unit of material tensile test includes：Main body box 51, first order top plate 21 and second level top plate 22；
The upper center of the main body box 51 is provided with fork 511；It is provided in the middle part of the lower end of the main body box 51
Through-hole；The main body box 51 is internally provided with cavity 510；
The first order top plate 21 is arranged in the cavity 510, and the bottom surface of the first order top plate 21 is provided with underthrust
Plunger 211；The lower fork 211 passes through the through-hole on the main body box 51 to be stretched out from the bottom of the main body box 51；It is described
At least two first order springs 31 are provided on first order top plate 21；The both ends of the first order spring 31 are respectively with described first
The top connection of 510 inner wall of upper surface and the cavity of grade top plate 21；
The second level top plate 22 is arranged at the top of the first order top plate 21, the both ends point of the second level top plate 22
It is not connect with the top of 510 inner wall of the cavity by the second drag-line 42；At least two are provided on the second level top plate 22
Second level spring 32；The both ends of the second level spring 32 respectively with the upper surface of the second level top plate 22 and the cavity
The top of 510 inner walls connects.
In the above-mentioned buffer unit for composite material tension test, in the cavity 510 of the main body box 51
In be provided with two-stage top plate：First order top plate 21 and second level top plate 22.
It, can be according to the needs of practical situations, in the institute of the main body box in the technical solution of the utility model
Stating setting N (N >=2) grade top plate, the wherein value of N in cavity can preset according to the needs of practical situations.
For example, preferably, as shown in figure 5, in a specific embodiment of the utility model, gone back in above-mentioned buffer unit
It may further include：Third level top plate 23；
The third level top plate 23 is arranged to be provided at least on the top of the second level top plate 22, third level top plate 23
Two third level springs 33；The both ends of the third level spring 33 respectively with the upper surface of the third level top plate 23 and described
The top of 510 inner wall of cavity connects.
At this point, being provided with three-level top plate in the buffer unit for composite material tension test in the utility model：The
Level-one top plate 21, second level top plate 22 and third level top plate 23.
The case where M (M >=4) grade top plate is arranged in the cavity of the main body box can be with the rest may be inferred, herein no longer
It enumerates.
Fig. 2 is the schematic diagram of the Material Testing Machine for being provided with buffer unit in the utility model embodiment.Fig. 8~Figure 11
It is the fundamental diagram in the buffer unit in the utility model embodiment, as shown in Fig. 2, Fig. 8~Figure 11, in the utility model
In above-mentioned buffer unit in, the upper fork 511 on aforementioned body box 51 can be connect with testing machine counter-force crossbeam 11, and institute
Stating the lower fork 211 on first order top plate 21 can then connect with the upper grip 12 of Material Testing Machine.Therefore, compound in progress
When material tensile test, the upward pulling force of testing machine counter-force crossbeam 11 can be transmitted by the main body box of above-mentioned buffer unit
To first order top plate 21, and the sample 10 clamped by upper grip 12 is driven to move upwardly together, completes set stretching task.When complete
After scheduled stretching, Material Testing Machine stops, and testing machine counter-force crossbeam 11 drives the main body box 51 of above-mentioned buffer unit
Stop immediately.But due to effect of inertia, first order top plate 21, upper grip 12 and test specimen 10 in above-mentioned buffer unit are still
It will continue to move up.At this point, the above-mentioned buffer unit in the utility model will start to play a role.With in above-mentioned buffer unit
For three-level top plate (i.e. above-mentioned N=3), the buffering overall process of above-mentioned buffer unit can have that there are three buffered
Journey, as shown in Fig. 8~Figure 10.
For example, in first buffering course shown in Fig. 8, since upper grip continues to move up, first order top
Plate 21 will also continue to move up therewith, and first order spring 31 will be compressed first, with the upward impact force to upper grip 12
Into row buffering.
When first order top plate 21, which is moved to, to be in contact with second level top plate 22, if upper grip is also continuing up shifting
It is dynamic, then it will enter second buffering course shown in Fig. 9；At this point, second level top plate 22 will be under the promotion of first order top plate 21
It also begins to move up, the continuation of first order spring 31 is compressed, and second level spring 32 also begins to be compressed, with to upper grip 12
Upward impact force continue to buffer.
When second level top plate 22, which is moved to, to be in contact with third level top plate 23, if upper grip is also continuing up shifting
It is dynamic, then it will enter third buffering course shown in Fig. 10；At this point, third level top plate 23 will be under the promotion of second level top plate 22
It also begins to move up, first order spring 31 and the continuation of second level spring 32 are compressed, and third level spring 33 also begins to be pressed
Contracting, continues to buffer, can be fully compressed up to third level spring 33 with the upward impact force to upper grip 12, such as schemes
Shown in 11.
In three above-mentioned buffering courses, with moving up for upper grip 12, first order spring 31, second level spring
32 and third level spring 33 will be compressed successively, therefore, the energy that upper grip 12 is generated due to inertia also will be gradually consumed.
If the rate (i.e. rate of extension) that upper grip 12 moves up is smaller, upper grip 12 is likely in 33 quilt of third level spring
Stop moving up before compression completely, to realize the buffering effect for moving up upper grip 12 under effect of inertia
Fruit, and upward displacement is smaller；Moreover, even if the rate (i.e. rate of extension) that moves up of upper grip 12 is larger, pass through three
The compression of three-level spring in a buffering course is consumed energy, the rate that upper grip 12 moves up can also be down to very little so that
Sample 10 can not damaged again.
Certainly, in the technical solution of the utility model, in order to further prevent sample 10 to be broken due to deforming larger
It is bad, preferably, in a specific embodiment of the utility model, it can also be in the cavity of the main body box of the buffer unit
The top setting displacement confinement block 513 of wall.Therefore, it is connect with the displacement confinement block 513 when third level top plate 23 is moved to
Touch when, third level top plate 23 will stop so that upper grip 12 by three-level spring energy consumption after, finally also stop under
Come, is destroyed so as to be effectively prevented sample 10 due to deforming larger.
It is to be provided with three-level top plate (i.e. first order top plate, second level top plate and the third level in above-mentioned buffer unit above
Top plate) for, the operation principle of the buffer unit in the utility model is described.It is provided with when in the buffer unit
When N grades of top plates, operation principle can herein will not enumerate so that the rest may be inferred.
In addition, preferably, in specific embodiment of the utility model, in addition to first order top plate, other top plates at different levels
Both ends are connect by drag-line with the top of the cavity inner wall respectively.
For example, as shown in figure 5, when in above-mentioned buffer unit be provided with three-level top plate when, the second level top plate 22
Both ends are connect by drag-line 42 with the top of 510 inner wall of the cavity respectively；The both ends of the third level top plate 23 pass through respectively
Drag-line 43 is connect with the top of 510 inner wall of the cavity.
Therefore, in the technical solution of the utility model, when other at different levels in addition to first order spring in buffer unit
When spring (for example, second level spring and third level spring) is in relaxation state (being uncompressed), in addition to first order top plate
Other top plates (for example, second level top plate and third level top plate) at different levels the cavity 510 is suspended in by the drag-line at both ends
In, it thereby may be ensured that other springs at different levels in addition to first order spring are in free state.
In addition, preferably, in specific embodiment of the utility model, the both ends of the first order top plate 21 are respectively set
There is at least one bayonet lock 213；Card slot corresponding with the bayonet lock 514 is respectively arranged in the two side walls of the cavity 510.
Therefore, the bayonet lock 213 at 21 both ends of first order top plate can be caught in above-mentioned card slot 514 so that described first
The plate face of grade top plate 21 can remain horizontal during moving up and down.
In addition, preferably, in specific embodiment of the utility model, even if when the first order top plate 21 is not affected by
When the upward impulse force of collet 12, the first order spring 31, which remains on, may be at compressive state, so that described
First order top plate 21 is closely supported in bottom under the action of shoring power with 510 inner wall of the cavity of the first order spring 31
It connects.
In addition, in the technical solution of the utility model, can be pre-set at different levels according to the needs of practical situations
The quantity of spring and/or position.
For example, preferably, in specific embodiment of the utility model, 4 are provided on the first order top plate 21
Level-one spring 31；2 second level springs 32 are provided on the second level top plate 22；It is provided with 2 on the third level top plate 23
Root third level spring 33.
For example, preferably, in specific embodiment of the utility model, each spring in springs at different levels is each along described
The length direction of main body box is symmetrical.
In addition, preferably, in specific embodiment of the utility model, it is additionally provided on the upper fork 511 for inserting
Sell across the first pin hole 512.
Therefore, the upper fork 511 can be inserted in the interface on testing machine counter-force crossbeam 11, then be inserted again first
It is inserted into bolt in pin hole 512, the upper fork 511 is fastened on testing machine counter-force crossbeam 11.
In addition, preferably, in specific embodiment of the utility model, the bottom of the lower fork 211 is provided with confession
The accommodating chamber that the upper grip 12 is inserted into；The second pin hole 212 passed through for bolt is additionally provided on the lower fork 211.
Therefore, the upper grip 12 can be inserted in the accommodating chamber of the lower fork 211, and bolt is then inserted into the again
In pin hole in two pin holes 212 and on the upper grip 12, the lower fork 211 is fastened on material examination
It tests on the upper grip 12 of machine.
In conclusion in the technical solution of the utility model, due in above-mentioned delaying for composite material tension test
In flushing device, it is provided with top plates at different levels and spring at different levels, therefore there is good energy absorption capability, i.e., in the position Jing Guo very little
I.e. absorbable many impact energys, the percussion so as to be generated when effectively stopping to Material Testing Machine rise after moving
To good cushioning effect, the upper grip of Material Testing Machine can be effectively prevented from being pulled up rushing when state stops suddenly
The effect of hitting causes to damage to test specimen, but also to avoid because of excessive buffer distance sample can be destroyed.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent substitution, improvement and etc. done should be included in the utility model
Within the scope of protection.
Claims (9)
1. a kind of buffer unit for composite material tension test, which is characterized in that the buffer unit includes：Main body box,
Level-one top plate and second level top plate；
The upper center of the main body box is provided with fork；It is provided with through-hole in the middle part of the lower end of the main body box；The master
Body box is internally provided with cavity；
The first order top plate is arranged in the cavity, and the bottom surface of the first order top plate is provided with lower fork；Under described
Fork passes through the through-hole on the main body box to be stretched out from the bottom of the main body box；It is provided at least on the first order top plate
Two first order springs；The both ends of the first order spring respectively in the upper surface of the first order top plate and the cavity
The top of wall connects；
The second level top plate is arranged is provided at least two on the top of the first order top plate, the second level top plate
Two-level spring；The both ends of the second level spring respectively with the upper surface of the second level top plate and the top of the cavity inner wall
Portion connects.
2. buffer unit according to claim 1, which is characterized in that still further comprised in the buffer unit：Third
Grade top plate；
The third level top plate is arranged is provided at least two third level on the top of the second level top plate, third level top plate
Spring；The both ends of the third level spring connect at the top of the upper surface of the third level top plate and the cavity inner wall respectively
It connects.
3. buffer unit according to claim 1 or 2, it is characterised in that：
Displacement confinement block is provided at the top of the cavity inner wall of the main body box of the buffer unit.
4. buffer unit according to claim 1 or 2, it is characterised in that：
In addition to first order top plate, the both ends of other top plates at different levels are connect by drag-line with the top of the cavity inner wall respectively.
5. buffer unit according to claim 1 or 2, it is characterised in that：
The both ends of the first order top plate are respectively arranged at least one bayonet lock；
Card slot corresponding with the bayonet lock is respectively arranged in the two side walls of the cavity.
6. buffer unit according to claim 1 or 2, it is characterised in that：
Each spring in springs at different levels is symmetrical each along the length direction of the main body box.
7. buffer unit according to claim 2, it is characterised in that：
4 first order springs are provided on the first order top plate；
2 second level springs are provided on the second level top plate；
2 third level springs are provided on the third level top plate.
8. buffer unit according to claim 1 or 2, it is characterised in that：
The first pin hole passed through for bolt is additionally provided on the upper fork.
9. buffer unit according to claim 1 or 2, it is characterised in that：
The bottom of the lower fork is provided with the accommodating chamber being inserted into for upper grip；It is additionally provided with for bolt on the lower fork
The second pin hole passed through.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721717518.2U CN207850807U (en) | 2017-12-12 | 2017-12-12 | A kind of buffer unit for composite material tension test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721717518.2U CN207850807U (en) | 2017-12-12 | 2017-12-12 | A kind of buffer unit for composite material tension test |
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| Publication Number | Publication Date |
|---|---|
| CN207850807U true CN207850807U (en) | 2018-09-11 |
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ID=63424038
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721717518.2U Withdrawn - After Issue CN207850807U (en) | 2017-12-12 | 2017-12-12 | A kind of buffer unit for composite material tension test |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107941600A (en) * | 2017-12-12 | 2018-04-20 | 中冶建筑研究总院有限公司 | A kind of buffer unit for composite material tension test |
| CN114659901A (en) * | 2020-12-23 | 2022-06-24 | 襄阳惠强新能源材料科技有限公司 | Tensile strength detection device for lithium battery diaphragm |
-
2017
- 2017-12-12 CN CN201721717518.2U patent/CN207850807U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107941600A (en) * | 2017-12-12 | 2018-04-20 | 中冶建筑研究总院有限公司 | A kind of buffer unit for composite material tension test |
| CN107941600B (en) * | 2017-12-12 | 2024-03-29 | 中冶建筑研究总院有限公司 | Buffer device for composite material tensile test |
| CN114659901A (en) * | 2020-12-23 | 2022-06-24 | 襄阳惠强新能源材料科技有限公司 | Tensile strength detection device for lithium battery diaphragm |
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