CN201210115Y - Micro-motion detection device for sample - Google Patents
Micro-motion detection device for sample Download PDFInfo
- Publication number
- CN201210115Y CN201210115Y CNU2008200880730U CN200820088073U CN201210115Y CN 201210115 Y CN201210115 Y CN 201210115Y CN U2008200880730 U CNU2008200880730 U CN U2008200880730U CN 200820088073 U CN200820088073 U CN 200820088073U CN 201210115 Y CN201210115 Y CN 201210115Y
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- CN
- China
- Prior art keywords
- sample
- loading plate
- displacement transducer
- line slideway
- displacement
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Abstract
The utility model relates to a sample micro detection device for the large-scale structural experiment, which comprises a displacement sensor. The displacement sensor comprises a main body part and a magnetic ring part; a sample and the main body part of the displacement sensor are fixedly connected with a straight guide rail; the magnetic ring part of the displacement sensor is fixedly connected with a sliding block which matches the straight guide rail; and the movement direction of the sliding block is in parallel with the displacement direction of the sample. Because of the adoption of the combined device with the guide rail and the sliding block, even in the high bearing situation with the tensile testing force FV (the maximum can reach 1,000 kN) exerted by a vertical loading actuator, the utility model can freely detect the micro horizontal displacement of the sample which is detected.
Description
(1) technical field
The utility model relates to a kind of test sample jiggle detecting device of large scale structure experiment.
(2) background technology
The large-sized structure experiment system is a kind of large-scale instrument that is used for the test structure mechanical property, its development and development, to the infrastructure that must build in the modernization of the country process of construction such as: the design check of super-high buildings, subway, airport, office building, auditoriums, hotels, Longspan Bridge, airliner, space shuttle, jumbo ship, ocean platform, atomic power station etc., optimize, checking has landmark meaning.
In national economy extensive developing period, above-mentioned all kinds of structure Design are based on analogy method, be design precisely or rationality is not the emphasis of considering.Such method for designing is mainly being to use in the design of conventional material and conventional structure, although heuristic methods has bigger design error, because forefathers' experience and relatively advanced computer Simulation calculation technology, final result or acceptable are arranged.
Enter 21st century, the develop rapidly that modernization of the country is built, various new constructions, new material emerge in an endless stream, all kinds of contradictions that product and engineering maximization, integration and complicated developing direction and shortage of resources cause, the analogy design has run into increasing challenge, the application of new construction and new material causes not having the successful experience that similarly can use for reference, and the risk of ultra-large engineering design and the general requirement that reduces cost that economizes on resources also become even more important and essential to the verification experimental verification of heavy construction in the design phase.And the research of the structure that must consider in design and use process problem such as technical indicator such as the distortion of (load, vibration, high low temperature, burn into weathering) and fracture strength and various structural entity serviceability, reinforced concrete structure non-linear behaviour under complicated external condition need also become increasingly conspicuous.
Because application standard sample or small-scale model are inferred the complete reliable data that are difficult to obtain the one-piece construction performance, in order to satisfy the above-mentioned requirements of outwardness, modern structural experiment must be finished by the single component test in past and test and the full size cun conversion of testing to one-piece construction.And the structure of forming for compound substance, even carry out multi parameter analysis with computing machine and also be difficult to infer, must carry out for guaranteeing safety near practical structures or full-scale test.Simultaneously, the science and technology development particularly develop rapidly of computer technology, electronic technology, automatic control technology and hydraulic servo technology provides solid foundation for the development of structural test and monitoring technology, for design, test and the monitoring of various labyrinths provides sound assurance, promoted the development of structural design theory.Therefore, in the world each state all in the development research of being devoted to the large-sized structure experiment instrument.
Often need carry out the fine motion displacement detecting of sample in the existing large-sized structure experiment, but existing fine motion surveys and only to be finished by a displacement transducer usually, be difficult to accomplish under high-mechanic, accomplish that low friction and displacement detecting are accurate.
(3) utility model content
Technical problem to be solved in the utility model is to provide a kind of high-mechanic, low friction and the accurate test sample jiggle detecting device of displacement detecting.
Described test sample jiggle detecting device, comprise displacement transducer, described displacement transducer comprises main part and magnet ring part, the main part of described sample and displacement transducer is fixedlyed connected line slideway, the magnet ring partial fixing of described displacement transducer connects the slide block that cooperates with described line slideway, and the direction of motion of described slide block is parallel with the sense of displacement of sample.
Further, described line slideway top is provided with loading plate, and the line slideway below is provided with down loading plate, and the magnet ring partial fixing of described slide block and displacement transducer is connected loading plate, the fixedly connected loading plate down of described line slideway, the main part of sample and displacement transducer is connected with following loading plate.
Further, described sample is connected with following loading plate by ball pivot.
The utility model has been owing to adopted guide rail slide block composite set, thereby in process of the test, even if be subjected to the tension and compression test power F that vertical loading actuator applies
VUnder the high-mechanic situation of (maximum can reach 10000kN), still can detect the micro-displacement of tested sample horizontal direction freely by test sample jiggle detecting device of the present utility model, resolution can reach 0.01mm, and friction force is less than 1/1000 of vertical load.
(4) description of drawings
Fig. 1 is the running status synoptic diagram of the described test sample jiggle detecting device of embodiment.
(5) embodiment
Below by embodiment the utility model is made preferably specific description, but protection domain of the present utility model is not limited to this.
With reference to Fig. 1, a kind of sample 1 jiggle detecting device, comprise displacement transducer 2, described displacement transducer 2 comprises main part and magnet ring part, described sample 1 is fixedlyed connected line slideway 3 with the main part of displacement transducer 2, the magnet ring partial fixing of described displacement transducer 2 connects the slide block 4 that cooperates with described line slideway 3, and the direction of motion of described slide block 4 is parallel with the sense of displacement of sample 1.
Described line slideway 3 tops are provided with loading plate 5, line slideway 3 belows are provided with down loading plate 6, the magnet ring partial fixing of described slide block 4 and displacement transducer 2 is connected loading plate 5, described line slideway 3 fixedly connected loading plates 6 down, the main part of sample 1 and displacement transducer 2 is connected with following loading plate 6.
Described sample 1 is connected with following loading plate 6 by ball pivot 7.
When the large scale structure experiment of carrying out sample 1, sample is subjected to the horizontal applied force F that level loads actuator 8
HVertical directed force F with vertical loading actuator 9
v Last loading plate 5 links to each other with the piston of vertical loading actuator 9, the vertical test power F that last loading plate 5 bears
vAfter being delivered to down loading plate 6 by line slideway 3, slide block 4, be delivered to tested sample 1 by ball pivot 7.
In the process of the test,, tested sample 1 loads the hydraulic test power F that actuator 8 applies if being subjected to level
H, the distortion S1 of generation horizontal direction, thus the following loading plate 6 that links together by ball pivot 7 and sample 1 drives the displacement that line slideways 3 produce horizontal directions, and the main part that drives displacement transducer 2 simultaneously is and then mobile.Like this, the S2 that relatively moves between last loading plate 5 and the following loading plate 6 is just detected and sends to follow-up computer measurement and control system by displacement transducer.For initiatively controlling the active of vertical loading actuator with the moving input signal that provides with moving servo-control system.
Claims (3)
1, a kind of test sample jiggle detecting device, comprise displacement transducer, described displacement transducer comprises main part and magnet ring part, it is characterized in that: the main part of described sample and displacement transducer is fixedlyed connected line slideway, the magnet ring partial fixing of described displacement transducer connects the slide block that cooperates with described line slideway, and the direction of motion of described slide block is parallel with the sense of displacement of sample.
2, test sample jiggle detecting device as claimed in claim 1, it is characterized in that: described line slideway top is provided with loading plate, the line slideway below is provided with down loading plate, the magnet ring partial fixing of described slide block and displacement transducer is connected loading plate, the fixedly connected loading plate down of described line slideway, the main part of sample and displacement transducer is connected with following loading plate.
3, test sample jiggle detecting device as claimed in claim 2 is characterized in that: described sample is connected with following loading plate by ball pivot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200880730U CN201210115Y (en) | 2008-05-30 | 2008-05-30 | Micro-motion detection device for sample |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200880730U CN201210115Y (en) | 2008-05-30 | 2008-05-30 | Micro-motion detection device for sample |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201210115Y true CN201210115Y (en) | 2009-03-18 |
Family
ID=40480853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200880730U Expired - Fee Related CN201210115Y (en) | 2008-05-30 | 2008-05-30 | Micro-motion detection device for sample |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201210115Y (en) |
-
2008
- 2008-05-30 CN CNU2008200880730U patent/CN201210115Y/en not_active Expired - Fee Related
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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: 20090318 Termination date: 20120530 |