CN203643241U - Static-dynamic four-point bending experimental device - Google Patents
Static-dynamic four-point bending experimental device Download PDFInfo
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- CN203643241U CN203643241U CN201320780645.2U CN201320780645U CN203643241U CN 203643241 U CN203643241 U CN 203643241U CN 201320780645 U CN201320780645 U CN 201320780645U CN 203643241 U CN203643241 U CN 203643241U
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- runner
- rotating disk
- sample
- support portion
- loading unit
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Abstract
The utility model discloses a static-dynamic four-point bending experimental device which comprises a device main body, a first loading part and a second loading part for loading a test sample, and a first supporting part and a second supporting part for supporting the test sample, wherein the device main body comprises a first rotating wheel and a second rotating wheel between which the distance is adjustable; the first rotating wheel and the second rotating wheel are connected with each other through a belt; the first loading part and the first supporting part are arranged on the first rotating wheel; the second loading part and the second supporting part are arranged on the second rotating wheel; the first rotating wheel and the second rotating wheel are driven to rotate through the belt when the belt bears downward impact force; the first loading part and the second loading part simultaneously are loaded on the upper surface of the test sample; the first supporting part and the second supporting part are simultaneously supported on the lower surface of the test sample. The experimental device disclosed by the utility model has the advantages that the device can adjust a simple bending distance of the test sample, and is applicable to the test samples with various sizes.
Description
Technical field
The utility model relates to a kind of crooked experiment device, especially relates to a kind of quiet dynamic four-point bending experimental provision.
Background technology
At present, four-point bending experimental provision is widely used.Chinese utility model patent instructions CN102706739A discloses a kind of four-point bending flexible supporting device, this device comprises charging assembly and supporting component, charging assembly comprises suspension bracket and two loading units for sample upper surface is loaded, two loading units are arranged on suspension bracket, supporting component comprises that firm banking and two are for supporting the support portion of sample, two support portions are arranged on firm banking, when experiment, sample is placed on support portion, two loading units apply a downward power to sample simultaneously, meanwhile two support portions apply two equal big or small reacting forces to sample, the simple bending distance that distance between two loading units, two load(ing) points on sample is sample, thereby obtain the bending property of sample.
There is following defect in such four-point bending experimental provision: 1. while experiment due to four-point bending, need two loading units to act on sample simultaneously, thereby existing experimental provision is divided into charging assembly and supporting component, two loading units in charging assembly are fixedly installed on same suspension bracket, cannot transverse shifting, this causes the simple bending distance on sample unadjustable, and the size of sample is restricted; 2. in four-point bending Hopkinson pressure bar impact experiment, need to experimental provision is horizontal, make sample can bear the impact from horizontal direction, existing experimental provision cannot be steadily on the ground horizontal, horizontal rear existing apparatus cannot provide the platform that holds sample simultaneously, when loading unit applied pressure hour, sample likely drops, and causes the failure of an experiment; 3. drop hammer in impact experiment at four-point bending, the firm banking of existing experimental provision is excessive, cannot put into four-point bending and drop hammer between the truss of impact experiment, thereby not be suitable for this experiment.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of quiet dynamic four-point bending experimental provision of simple bending distance that can adjusting sample, this experimental provision can be tested the sample of various sizes, and the static fracture experiment of four-point bending, the experiment of four-point bending dynamic fatigue, the quiet dynamic creep of four-point bending that is applicable to large-scale sample tested, four-point bending drops hammer impact experiment and four-point bending Hopkinson pressure bar impact experiment.
The utility model solves the problems of the technologies described above adopted technical scheme: a kind of quiet dynamic four-point bending experimental provision, comprise apparatus main body, for the first loading unit and the second loading unit that sample is loaded, for supporting the first support portion and second support portion of sample, described apparatus main body comprises adjustable the first runner and the second runner of distance each other, the first described runner is connected by belt with the second described runner, the first described loading unit and the first described support portion are arranged on the first described runner, the second described loading unit and the second described support portion are arranged on the second described runner, in the time that described belt is subject to downward impulsive force, described belt drives the first described runner and the second described runner to rotate, the first described loading unit and the second described loading unit are carried on the upper surface of sample simultaneously, the first described support portion and the second described support portion are supported on the lower surface of sample simultaneously.
The first described runner comprises the first rotating disk and the second rotating disk that connect by the first rotating shaft, the first described loading unit is the first nip roll, the first described nip roll comprises the first linkage section and first unsettled section, the first described nip roll is through the first described runner, the first described linkage section is between the first described rotating disk and described the second rotating disk, described first unsettled section of outside that is positioned at the first described rotating disk, the first described support portion is first rod, forms the passage that holds of described sample between described first unsettled section and described first rod;
The second described runner comprises the 3rd rotating disk and the 4th rotating disk that connect by the second rotating shaft, the second described loading unit is the second nip roll, the second described nip roll comprises the second linkage section and second unsettled section, the second described nip roll is through the second described runner, the second described linkage section is between the 3rd described rotating disk and described the 4th rotating disk, described second unsettled section of outside that is positioned at the 3rd described rotating disk, the second described support portion is second rod, forms the passage that holds of described sample between described second unsettled section and described second rod;
The two ends of described belt are connected with described the first linkage section and the second described linkage section respectively;
It is easier that this structure is made this device, more saves cost.
Described apparatus main body also comprises the first supporting seat and the second supporting seat, the first described runner is arranged on the first described supporting seat, the second described runner is arranged on the second described supporting seat, and mobile the first described supporting seat and the second described supporting seat get final product the simple bending distance of adjusting sample.
The rear side of the first described runner, the second described runner, described the first supporting seat and described the second supporting seat is respectively arranged with horizontal supporting seat, in the time that described apparatus main body is horizontal, described sample horizontal, on the first described rotating disk and described the 3rd rotating disk, makes this device can be applicable to four-point bending Hopkinson pressure bar impact experiment.
On the first described rotating disk, be also provided with the first rod for subsequent use, on the second described rotating disk, be also provided with the second rod for subsequent use, after first rod that dismounting is described or second described rod, go for the larger sized sample of cross-sectional area.
Compared with prior art, the utility model has the advantage of that experimental provision comprises adjustable the first runner and the second runner of distance each other, the first runner is connected by belt with the second runner, when experiment, by being exerted pressure, belt drives the first runner and the second runner, thereby by the first loading unit, the second loading unit, the first support portion and the second support portion load sample, in this structure, can regulate the distance of the first loading unit and the second loading unit by adjusting the distance of the first runner and the second runner, thereby the simple bending distance of adjusting sample, make this device applicable to sample longer or that cross-sectional area is larger, in the time that the asymmetric sample of cross-sectional area is tested, only need to rotate the first runner and the second runner, make the first loading unit, the second loading unit, the first support portion contacts with sample with the second support portion, can carry out four-point bending experiment to sample.
Accompanying drawing explanation
Fig. 1 is stereographic map of the present utility model;
Fig. 2 is the use constitutional diagram that the utility model drops hammer in impact experiment at four-point bending.
Embodiment
Below in conjunction with accompanying drawing, embodiment is described in further detail the utility model.
Embodiment: as shown in Figure 1, a kind of quiet dynamic four-point bending experimental provision, comprise apparatus main body 1, for the first loading unit 3 and the second loading unit 4 that sample 2 is loaded, for supporting the first support portion 5 and second support portion 6 of sample 2, apparatus main body 1 comprises adjustable the first runner 7 and the second runner 8 of distance each other, the first runner 7 is connected by belt 9 with the second runner 8, the first loading unit 3 and the first support portion 5 are arranged on the first runner 7, the second loading unit 4 and the second support portion 6 are arranged on the second runner 8, in the time that belt 9 is subject to downward impulsive force, belt 9 drives the first runner 7 and the second runner 8 to rotate, the first loading unit 3 and the second loading unit 4 are carried on the upper surface of sample 2 simultaneously, the first support portion 5 and the second support portion 6 are supported on the lower surface of sample 2 simultaneously.
In the present embodiment, the first runner 7 comprises the first rotating disk and the second rotating disk that connect by the first rotating shaft, the first loading unit 3 is the first nip roll, the first nip roll comprises the first linkage section and first unsettled section, the first nip roll is through the first runner 7, the first linkage sections between the first rotating disk and the second rotating disk, and first unsettled section is positioned at the outside of the first rotating disk, the first support portion 5 is first rod, forms the passage that holds of sample 2 between first unsettled section and first rod;
The second runner 8 comprises the 3rd rotating disk and the 4th rotating disk that connect by the second rotating shaft, the second loading unit 4 is the second nip roll, the second nip roll comprises the second linkage section and second unsettled section, the second nip roll is through the second runner, the second linkage section is between the 3rd rotating disk and described the 4th rotating disk, second unsettled section is positioned at the outside of the 3rd rotating disk, and the second support portion 6 is second rod, forms the passage that holds of sample 2 between second unsettled section and second rod;
The two ends of belt 9 are connected with the first linkage section and the second linkage section respectively;
It is easier that this structure is made this device, more saves cost.
Apparatus main body 1 also comprises that the first supporting seat 10 and the second supporting seat 11, the first runners 7 are arranged on the first supporting seat 10, and the second runner 8 is arranged on the second supporting seat 11, and mobile the first supporting seat 10 and the second supporting seat 11 get final product the simple bending distance of adjusting sample 2.
The rear side of the first runner 7, the second runner 8, the first supporting seat 10 and the second supporting seat 11 is respectively arranged with horizontal supporting seat 12, in the time that apparatus main body 1 is horizontal, sample 2 can horizontal on the first rotating disk and the 3rd rotating disk, make this device can be applicable to four-point bending Hopkinson pressure bar impact experiment.
On the first rotating disk, be also provided with on the first rod 13, the second rotating disks for subsequent use and be also provided with the second rod 14 for subsequent use, go for larger sized sample 2 after dismantling first rod or second rod.
In the present embodiment, as shown in Figure 2, this device drops hammer in impact experiment at four-point bending, the first runner 7 and the second runner 8 can be placed on to the both sides of truss, belt 9 is through the gap of truss, device is not subject to the restriction of two truss spaces in left and right, applicable to the four-point bending impact experiment that drops hammer.
When use, because experimental provision comprises adjustable the first runner 7 and the second runner 8 of distance each other, the first runner 7 is connected by belt 9 with the second runner 8, when experiment, by being exerted pressure, belt 9 drives the first runner 7 and the second runner 8, thereby by the first loading unit 3, the second loading unit 4, the first support portion 5 and the second support portion 6 load sample 2, in this structure, by adjusting the simple bending distance that the distance of the first runner 7 and the second runner 8 can adjusting sample 2, make this device be applicable to the sample 2 of more sizes, in the time that the asymmetric sample 2 of side-to-side dimensions is tested, only need to adjust the angle of the first runner 7 and the second runner 8, can make the first loading unit 3 and the second right title sample 2 of 4 while of loading unit load.
Claims (5)
1. a quiet dynamic four-point bending experimental provision, comprise apparatus main body, for the first loading unit and the second loading unit that sample is loaded, for supporting the first support portion and second support portion of sample, it is characterized in that described apparatus main body comprises adjustable the first runner and the second runner of distance each other, the first described runner is connected by belt with the second described runner, the first described loading unit and the first described support portion are arranged on the first described runner, the second described loading unit and the second described support portion are arranged on the second described runner, in the time that described belt is subject to downward impulsive force, described belt drives the first described runner and the second described runner to rotate, the first described loading unit and the second described loading unit are carried on the upper surface of sample simultaneously, the first described support portion and the second described support portion are supported on the lower surface of sample simultaneously.
2. the quiet dynamic four-point bending experimental provision of one according to claim 1, it is characterized in that the first described runner comprises the first rotating disk and the second rotating disk that connect by the first rotating shaft, the first described loading unit is the first nip roll, the first described nip roll comprises the first linkage section and first unsettled section, the first described nip roll is through the first described runner, the first described linkage section is between the first described rotating disk and described the second rotating disk, described first unsettled section of outside that is positioned at the first described rotating disk, the first described support portion is first rod, between described first unsettled section and described first rod, form the passage that holds of described sample,
The second described runner comprises the 3rd rotating disk and the 4th rotating disk that connect by the second rotating shaft, the second described loading unit is the second nip roll, the second described nip roll comprises the second linkage section and second unsettled section, the second described nip roll is through the second described runner, the second described linkage section is between the 3rd described rotating disk and described the 4th rotating disk, described second unsettled section of outside that is positioned at the 3rd described rotating disk, the second described support portion is second rod, forms the passage that holds of described sample between described second unsettled section and described second rod;
The two ends of described belt are connected with described the first linkage section and the second described linkage section respectively.
3. the quiet dynamic four-point bending experimental provision of one according to claim 1, it is characterized in that described apparatus main body also comprises the first supporting seat and the second supporting seat, the first described runner is arranged on the first described supporting seat, and the second described runner is arranged on the second described supporting seat.
4. the quiet dynamic four-point bending experimental provision of one according to claim 3, the rear side that it is characterized in that the first described runner, described the second runner, described the first supporting seat and described the second supporting seat is respectively arranged with horizontal supporting seat, in the time that described apparatus main body is horizontal, described sample horizontal is on the first described rotating disk and described the 3rd rotating disk.
5. the quiet dynamic four-point bending experimental provision of one according to claim 2, is characterized in that being also provided with the first rod for subsequent use on the first described rotating disk, is also provided with the second rod for subsequent use on the second described rotating disk.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320780645.2U CN203643241U (en) | 2013-11-29 | 2013-11-29 | Static-dynamic four-point bending experimental device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320780645.2U CN203643241U (en) | 2013-11-29 | 2013-11-29 | Static-dynamic four-point bending experimental device |
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| Publication Number | Publication Date |
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| CN203643241U true CN203643241U (en) | 2014-06-11 |
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| CN201320780645.2U Expired - Fee Related CN203643241U (en) | 2013-11-29 | 2013-11-29 | Static-dynamic four-point bending experimental device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103698202A (en) * | 2013-11-29 | 2014-04-02 | 宁波大学 | Static and dynamic four-point bending experimental device |
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2013
- 2013-11-29 CN CN201320780645.2U patent/CN203643241U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103698202A (en) * | 2013-11-29 | 2014-04-02 | 宁波大学 | Static and dynamic four-point bending experimental device |
| CN103698202B (en) * | 2013-11-29 | 2016-04-20 | 宁波大学 | A kind of quiet dynamic four-point bending experimental provision |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140611 Termination date: 20171129 |
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| CF01 | Termination of patent right due to non-payment of annual fee |