CN201159702Y - High power high-speed stretching tester - Google Patents
High power high-speed stretching tester Download PDFInfo
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- CN201159702Y CN201159702Y CNU2008200283104U CN200820028310U CN201159702Y CN 201159702 Y CN201159702 Y CN 201159702Y CN U2008200283104 U CNU2008200283104 U CN U2008200283104U CN 200820028310 U CN200820028310 U CN 200820028310U CN 201159702 Y CN201159702 Y CN 201159702Y
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- gathering sill
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- stretching
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Abstract
The utility model relates to a high power high-speed tensile test device; a speed regulation motor (12) is connected with a quality plate (10) through a coupling (11); the quality plate is connected with a rotary plate (8) through a clutch (9); both ends of a towing steel rope (7) are fixedly connected with the rotary plate (8) and a front tensile clamp (5) respectively. A sample (4) is arranged between the front tensile clamp (5) and a back tensile clamp (3). The central lines of the towing steel rope (7), the front tensile clamp (5), the sample (4), the back tensile clamp (3) and the load sensor (2) are in the same plane. When the speed regulation motor (12) rotates in higher rotary speed; the rim of the rotary plate coaxially connected with the speed regulation motor (12) obtains higher linear speed to drive the towing steel rope to coil on the rotary plate (8) in high speed; meanwhile, the sample (4) is driven to move along the direction of the towing steel rope (7), so as to deform the sample (4). The high power high-speed tensile test device solves the problem that the large tension cannot be applied to the sample when the loading device such as a Hopkinson pull rod is adopted, and has the advantages of convenient operation and reliable test data.
Description
One, technical field
The invention belongs to the dynamic performance testing technical field of material, specifically is a kind of Large-power High-Speed tensile test apparatus.
Two, background technology
Elastic caoutchouc plays endergonic effect in the short distance intercept process, but because whole intercept process is shorter action time, belong to transient process, what the elasticity check cable was subjected in the process of blocking is dynamic load, so its tensile mechanical properties under dynamic load is the key of blocking mechanism design.Conventional experimental technique can only obtain its mechanical property under static load, and the Hopkinson pull bar experimental provision of measuring the MATERIALS ' DYNAMIC tensile mechanical properties can only apply less elongation to sample.Because the ultimate elongation of elastic cable class elastic material is very big, traditional loading method is difficult to guarantee under permanent rate of extension such material to be applied very big stretching displacement, also can't obtain to be similar to the such elastic material of elastic cable complete mechanical characteristic under dynamic load.
Three, Fa Ming content
For overcoming the deficiency that can not obtain elastic cable class elastic material complete mechanical characteristic under dynamic load that exists in the prior art, the present invention proposes a kind of Large-power High-Speed tensile test apparatus.
For achieving the above object, the present invention adopts the Large-power High-Speed motor, comprise buncher, shaft coupling, quality dish, clutch coupling, rotating disk, haulage cable, preceding stretching clamp, after stretching anchor clamps, support and load transducer, wherein, one end of load transducer is fixed on the support, and the other end and after stretching anchor clamps are connected.On the horizontal plate of support, be installed with the gathering sill of a section for " recessed " shape, preceding stretching clamp is installed in this gathering sill, and can move along gathering sill; There is the continuous dislocation measuring system gathering sill both sides, to measure stretcher strain.Buncher links to each other with axle one end of quality dish by shaft coupling, and the other end of quality dish axle links to each other with the rotating disk that circumferentially has groove by clutch coupling; One end of haulage cable is connected in the bottom portion of groove of rotating disk, the front end of stretching clamp before the other end is fixed on.Sample is installed between preceding stretching clamp and the after stretching anchor clamps.When haulage cable was strained, the center line of the haulage cable of pilot system, preceding stretching clamp, sample, after stretching anchor clamps and load transducer should be on the same horizontal line.The output signal of load transducer and continuous dislocation measuring system inserts data acquisition system (DAS).
When motor rotates with higher rotation speed, the outer of the rotating disk that is connected with motor coaxle will have higher linear velocity, the haulage cable that is connected with rotating disk is wrapped in high speed on the rotating disk, drives sample simultaneously and moves along haulage cable steel wire direction, and sample is deformed.Because motor can long time loading, can't apply the problem of big amount of tension when having solved chargers such as adopting the Hopkinson pull bar to sample.The tensile load that sample bore is measured with load transducer, because the elongation of sample is identical along the distance that gathering sill moves with preceding stretching clamp, therefore the distance that stretching clamp moves along gathering sill before measuring with the continuous dislocation measuring system obtains the elongation of sample indirectly, can obtain the mechanical property of elastic material when high-speed stretch like this.In addition, according to different rate of extension requirements, adjust rotating speed of motor and just can apply different stretch speed sample.Simple, the realization, easy and simple to handle easily of hyper-elastic material high-speed stretching test method principle proposed by the invention, test figure is reliable, can't apply the problem of big elongation in the time of can solving chargers such as adopting the Hopkinson pull bar to sample, obtain the so complete high-speed stretch performance of elastic material of rubber like.
Four, description of drawings
Fig. 1 is the structural representation of hyper-elastic material high-speed stretching test method experimental provision of the present invention
Fig. 2 is the relative setting height(from bottom) synoptic diagram of preceding stretching clamp, gathering sill and continuous dislocation measuring system among the present invention
Wherein:
1. stretching clamps before support 2. load transducers 3. after stretching anchor clamps 4. samples 5.
6. direction recess 7. haulage cables 8. rotating disks 9. clutch couplinges 10. quality dishes
11. shaft coupling 12. bunchers 13. continuous dislocation measuring systems 14. data acquisition system (DAS)s
Five, embodiment
Present embodiment adopts the elastic cable high-speed stretch device of Large-power High-Speed motor as charger, comprises buncher 12, shaft coupling 11, quality dish 10, clutch coupling 9, rotating disk 8, haulage cable 7, direction recess 6, preceding stretching clamp 5, sample 4, after stretching anchor clamps 3, load transducer 2, support 1, continuous dislocation measuring system 13 and data acquisition system (DAS) 14.Adopt laser continuous dislocation measuring system as continuous dislocation measuring system 13 in the present embodiment.
In concrete enforcement, an end of load transducer 2 is fixed on the support 1, the other end and after stretching anchor clamps 3 are connected.On the horizontal plate of support 1, be installed with the gathering sill 6 of a longitudinal profile for " recessed " shape, preceding stretching clamp 5 is installed in the gathering sill 6, and can move along this gathering sill, and its upper surface exposes the top of gathering sill; Continuous dislocation measuring system 13 is installed in the both sides of gathering sill 6, the height of the horizontal line light source that sends is a little more than the top of gathering sill 6, but the height of stretching clamp 5 upper surfaces before being lower than can obtain the stretcher strain of sample 4 like this by the distance that stretching clamp 5 before measuring moves along gathering sill 6.Buncher 12 links to each other with axle one end of quality dish 10 by shaft coupling 11, and the other end of this quality dish axle links to each other with the rotating disk 8 that circumferentially has groove by clutch coupling 9; One end of haulage cable 7 is connected in the bottom portion of groove on rotating disk 8 circumference, the front end of stretching clamp 5 before the other end is fixed on.Sample is installed between preceding stretching clamp 5 and the after stretching anchor clamps 3.When haulage cable 7 tensions, the center line of the haulage cable 7 of pilot system, preceding stretching clamp 5, sample 4, after stretching anchor clamps 3 and load transducer 2 should be on the same horizontal line.The output signal of load transducer 2 and continuous dislocation measuring system 13 inserts data acquisition system (DAS) 14.
As Fig. 2, in this example, because continuous dislocation measuring system 13 is the displacements by stretching clamp 5 before measuring length that its line source that sends is blocked and obtaining, should guarantee the top of the height of the horizontal line light source that continuous dislocation measuring system 13 is sent when therefore installing a little more than gathering sill 6, but the height of stretching clamp 5 upper surfaces before being lower than simultaneously, and preceding stretching clamp 5 upper surfaces expose gathering sill 6 and can block laser when guaranteeing that it moves.
Claims (3)
1. Large-power High-Speed tensile test apparatus, it is characterized in that, this device comprises buncher (12), shaft coupling (11), quality dish (10), clutch coupling (9), rotating disk (8), haulage cable (7), gathering sill (6), preceding stretching clamp (5), sample (4), after stretching anchor clamps (3), load transducer (2), support (1), continuous dislocation measuring system (13) and data acquisition system (DAS) (14), one end of load transducer (2) is fixed on the support (1), and the other end and after stretching anchor clamps (3) are connected; Preceding stretching clamp (5) is installed in the gathering sill (6), and can move along this gathering sill; There is continuous dislocation measuring system (13) both sides of gathering sill (6); Buncher (12) links to each other with axle one end of quality dish (10) by shaft coupling (11); The other end of quality dish (10) axle links to each other with rotating disk (8) by clutch coupling (9); One end of haulage cable (7) and rotating disk (8) are connected, and the other end and preceding stretching clamp (5) are connected; Sample is installed between preceding stretching clamp (5) and the after stretching anchor clamps (3); The center line of haulage cable (7), preceding stretching clamp (5), sample (4), after stretching anchor clamps (3) and load transducer (2) should be on the same horizontal line.
2. Large-power High-Speed tensile test apparatus according to claim 1 is characterized in that the circumferential surface of rotating disk (8) is fluted.
3. Large-power High-Speed tensile test apparatus according to claim 1 is characterized in that gathering sill (6) is installed on the leveling board of support (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200283104U CN201159702Y (en) | 2008-02-04 | 2008-02-04 | High power high-speed stretching tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200283104U CN201159702Y (en) | 2008-02-04 | 2008-02-04 | High power high-speed stretching tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201159702Y true CN201159702Y (en) | 2008-12-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200283104U Expired - Fee Related CN201159702Y (en) | 2008-02-04 | 2008-02-04 | High power high-speed stretching tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201159702Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101504348B (en) * | 2008-02-04 | 2011-06-22 | 西北工业大学 | Hyper-elastic material high-speed stretching tester and experiment method |
| CN110082208A (en) * | 2019-05-14 | 2019-08-02 | 中国石油大学(北京) | Miniature SMA comprehensive characteristic test device |
-
2008
- 2008-02-04 CN CNU2008200283104U patent/CN201159702Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101504348B (en) * | 2008-02-04 | 2011-06-22 | 西北工业大学 | Hyper-elastic material high-speed stretching tester and experiment method |
| CN110082208A (en) * | 2019-05-14 | 2019-08-02 | 中国石油大学(北京) | Miniature SMA comprehensive characteristic test device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081203 Termination date: 20120204 |