CN101446531A - Multi-axis hydrostatic test device of porous material - Google Patents
Multi-axis hydrostatic test device of porous material Download PDFInfo
- Publication number
- CN101446531A CN101446531A CNA2008102365300A CN200810236530A CN101446531A CN 101446531 A CN101446531 A CN 101446531A CN A2008102365300 A CNA2008102365300 A CN A2008102365300A CN 200810236530 A CN200810236530 A CN 200810236530A CN 101446531 A CN101446531 A CN 101446531A
- Authority
- CN
- China
- Prior art keywords
- axial
- porous material
- lead
- test specimen
- strainometer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a multi-axis hydrostatic test device of a porous material, wherein, the axial load of a multi-axis loaded hydrostatic test is exerted to a porous material test piece through a step-up piston by a material testing machine; hydrostatic test is provided by an external hydraulic source; the axial load born by the porous material test piece is measured by a shearing spoke-type load sensor in a hydraulic chamber; the axial deformation of the porous material test piece is measured by axial extensometers which are mounted at the two ends of a test piece sealing device; the axial extensometers are in the semi-toroidal shape; the load sensor and the axial extensometers adopt the Wheatstone full-bridge structure so as to eliminate the pressure effect error of a strain gauge caused by high hydraulic pressure; and the stress-strain curve of the porous material test piece in a multi-axis hydrostatic test can be obtained only by conversing the measured output of the Wheatstone bridges of the load sensor and the axial extensometers. Therefore, the device is applicable in multi-axis hydrostatic tests of various porous materials and solid materials.
Description
Technical field
The present invention relates to a kind of multi-axis hydrostatic test device of porous material, be specifically related to a kind of porosint multi-axis hydrostatic and load and the stress-strain measurement device.
Background technology
Porosint has excellent 26S Proteasome Structure and Function characteristic, the multi-axis hydrostatic test is the important channel of measuring porosint mechanical property and constitutive relation, because there are many technological difficulties in loading and measurement under the high hydraulic environment, how to measure as the ess-strain under the high hydraulic environment, how pressure effect is eliminated the influence of measuring equipment, the lead-in wire of measuring equipment connects and how sealing solves, and how the porosint test specimen to seal etc., still do not have the general multi-axis hydrostatic test device of porous material of a kind of maturation at present both at home and abroad.
Summary of the invention
The objective of the invention is to solve above-mentioned technological difficulties, a kind of general multi-axis hydrostatic test device of porous material is provided.
For achieving the above object, the technical solution adopted in the present invention is: multi-axis hydrostatic test device of porous material, comprise that one applies the Material Testing Machine of axial load for porosint test specimen 33 by step-up piston 10, one provides the external hydraulic source of hydrostatic pressing, hydraulic medium is a transformer oil, in the oil supply hole 32 input hydraulic pressure chambers 1 by hydraulic chamber's 1 sidewall; The load transducer 13 of the axial load that the one measurement porosint test specimen that is arranged in hydraulic chamber 1 inside bears; One is installed in the axial extensometer 17 of the measurement test specimen axial deformation at porosint test specimen packoff 11 two ends; Load transducer 13 and axial extensometer 17 adopt the Hui Sitong full bridge structures, the lead-in wire card extender 20 that the bridge circuit power supply of load transducer 13 and axial extensometer 17 and output lead are connected to hydraulic chamber 1 inside, inner lead card extender 20 interconnects by the enamel-cover wire harness 21 that is imbedded in hydraulic chamber's 1 bottom stepped appearance fairlead with outside lead web joint 24, and fairlead solidifies with epoxy sealing.
Load transducer 13 is for shearing the radial sensor.
Axially extensometer 17 is the semi-round ring shape spring leaf.
The version of porosint test specimen packoff 11 is, porosint test specimen 33 outside surfaces are with Copper Foil 34 parcels, overcoat heat-shrink tube 35, and two ends are by Wedge device and the trapezoidal waterproof washer sealing of teflon.
Can realize that by the axial load of control material testing machine and the hydraulic pressure of external hydraulic source multi-axis hydrostatic ratio or disproportional load; Load transducer and axial extensometer adopt the Hui Sitong full bridge structure, can eliminate the pressure effect error that high hydraulic pressure causes strainometer, and conversion can obtain the stress-strain diagram of test specimen multi-axis hydrostatic test.
Description of drawings
Fig. 1 is a structure principle chart of the present invention.
Fig. 2 is a porosint test specimen sealing device structure schematic diagram of the present invention.
Fig. 3 is the structural representation of axial extensometer paster of the present invention.
Embodiment
Below in conjunction with accompanying drawing structural principle of the present invention and principle of work are described in further detail.
With reference to Fig. 1, the present invention includes hydraulic chamber 1, loam cake 2, hydraulic chamber 1 is connected by bolt 3 with loam cake 2, dust cap 5 is installed on loam cake 2 tops, loam cake 2 and dust cap 5 have vent port 8, vent port 8 is by bolt 7 and packing ring 9 sealings, gap between axial load piston rod 4 and the loam cake 2 seals with standard package 6, porosint test specimen packoff 11 is placed between load transducer plummer 12 and the step-up piston 10, load transducer 13 usefulness bolts 14 are installed on the lower shoe 15, lower shoe 15 usefulness bolts 16 are installed in the inwall bottom of hydraulic chamber 1, axially extensometer 17 two ends are fixed on porosint test specimen packoff 11 two ends with screw 18, load transducer 13 and 17 power supplies of axial extensometer and output line are connected to inner lead card extender 20 upper surfaces by lower shoe lead-in wire groove 19, inner lead web joint 20 lower surfaces connect the enamel-cover wire harness 21 of diameter 0.3mm, enamel-cover wire harness 21 passes lead-in wire shoulder hole 5mm section 22 and 2mm section 23 is connected to outside lead web joint 24 upper surfaces, fairlead is filled sealing with high strength epoxy resin, outside lead is drawn from web joint 24 lower surfaces, draws by bottom lead hole 25 and bottom lead groove 27 and side lead-in wire groove 26.Piston rod part thread end 29 connects adapter clamp 28 on the versatile material testing machine, hydraulic cavities bottom thread end 30 connects adapter 31 under the versatile material testing machine, hydrostatic pressing is provided by external hydraulic source, and hydraulic medium is by in the oil supply hole 32 input hydraulic pressure chambers 1 of hydraulic chamber's 1 sidewall.Axial load and hydraulic pressure by the control material testing machine can realize that multi-axis hydrostatic ratio or disproportional load.
With reference to Fig. 2, porosint test specimen 33 outside surfaces wrap up with the Copper Foil 34 of thickness 0.05mm, wedge-type seal device male 36 is blocked the test specimen two ends, overcoat heat-shrink tube 35, heat-shrink tube 35 shrink wrapped are on porosint test specimen 33 and wedge-type seal device male 36 surfaces behind the heated baking, wedge-type seal device male 36 is connected with female 37 usefulness dormant screws 39, and is middle with trapezoidal waterproof washer 38 sealings of teflon.
With reference to Fig. 3, axially extensometer 17 is the semi-round ring shape spring leaf, and top upper and lower surface 40,41 is posted 42,43 and 44,45, four strainometers of two strainometers 42,43,44,45 respectively and formed the Hui Sitong full-bridge.The strainometer 42 of top upper surface 40,43 lead end 42+, 42-, 43+, 43-receives a of connection terminal 46 successively, b, c, on the d end, the strainometer 44 of top lower surface 41,45 lead end 44+, 44-, 45+, 45-receives the e of connection terminal 47 successively, f, g, on the h end, the 44-end of the 42-termination strainometer 44 of strainometer 42, the 43+ end of the 44+ termination strainometer 43 of strainometer 44, the 45+ end of the 43-termination strainometer 45 of strainometer 43, the 42+ end of the 45-termination strainometer 42 of strainometer 45, the a end of connection terminal 46 is anodal for the 40 place's Wheatstone bridge power supplies of top upper surface, the c end supplies negative pole for electric bridge, the b end is electric bridge output signal positive pole, the d end is electric bridge output signal negative pole, the e end of connection terminal 47 is anodal for the 41 place's Wheatstone bridge power supplies of top lower surface, the g end supplies negative pole for electric bridge, the f end is electric bridge output signal positive pole, and the h end is electric bridge output signal negative pole.
Principle of work of the present invention is: the porosint test specimen wraps up with the Copper Foil 34 of thickness 0.05mm, overcoat heat-shrink tube 35, and two ends seal with wedge-type seal device male 36, the trapezoidal waterproof washer 38 of female 37 and teflon.The axial load that multiaxis loads hydrostatic test imposes on porosint test specimen 33 by Material Testing Machine by step-up piston 10, hydrostatic pressing is provided by external hydraulic source, hydraulic medium is a transformer oil, can realize that by the axial load and the hydraulic pressure of control testing machine multi-axis hydrostatic ratio or disproportional load.The axial load that porosint test specimen 33 bears is measured by the shearing radial load transducer 13 of hydraulic chamber inside, the axial deformation that porosint test specimen 33 pressurizeds produce passes to axial extensometer 17 and makes its distortion, and the strainometer that the extensometer upper and lower surface is pasted is experienced the strain of patch location and exported by Wheatstone bridge.Can converse the axial stress and the strain of porosint test specimen 33 by the output of measuring load transducer and axial extensometer Wheatstone bridge.
Claims (7)
1, multi-axis hydrostatic test device of porous material, comprise that one applies the Material Testing Machine of axial load for porosint test specimen (33) by step-up piston (10), one provides the external hydraulic source of hydrostatic pressing, and hydraulic medium is by in oil supply hole (32) the input hydraulic pressure chamber (1) of hydraulic chamber (1) sidewall; It is characterized in that, also comprise:
The load transducer (13) of the axial load that the one measurement porosint test specimen that is arranged in hydraulic chamber (1) inside bears;
One is installed in the axial extensometer (17) of the measurement test specimen axial deformation at porosint test specimen packoff (11) two ends;
Load transducer (13) and axial extensometer (17) adopt the Hui Sitong full bridge structure;
The bridge circuit power supply and the output lead of load transducer (13) and axial extensometer (17) are connected to the inner lead-in wire card extender (20) of hydraulic chamber (1), lead-in wire card extender (20) is by being imbedded in enamel-cover wire harness (21) interconnection in hydraulic chamber (1) the bottom stepped appearance fairlead, and fairlead solidifies with epoxy sealing.
2, multi-axis hydrostatic test device of porous material according to claim 1 is characterized in that, load transducer (13) is for shearing the radial sensor.
3, multi-axis hydrostatic test device of porous material according to claim 1 is characterized in that, axially extensometer (17) is the semi-round ring shape spring leaf.
4, multi-axis hydrostatic test device of porous material according to claim 1, it is characterized in that, the structure of porosint test specimen packoff (11) is, porosint test specimen (33) outside surface wraps up with Copper Foil (34), overcoat heat-shrink tube (35), two ends are by Wedge device and the trapezoidal waterproof washer of teflon (38) sealing.
5, multi-axis hydrostatic test device of porous material, it is characterized in that, comprise hydraulic chamber (1), loam cake (2), hydraulic chamber (1) is connected by bolt (3) with loam cake (2), dust cap (5) is installed on loam cake (2) top, loam cake (2) and dust cap (5) have vent port (8), vent port (8) is by bolt (7) and packing ring (9) sealing, gap between axial load piston rod (4) and the loam cake (2) seals with standard package (6), porosint test specimen packoff (11) is placed between load transducer plummer (12) and the step-up piston (10), load transducer (13) is installed on the lower shoe (15) with bolt (14), lower shoe (15) is installed in hydraulic chamber inwall bottom with bolt (16), axially extensometer (17) two ends are fixed on the porosint test specimen packoff (11) with screw (18), load transducer (13) and axially extensometer (17) power supply and output line are connected to inner lead card extender (20) upper surface by the lower shoe groove (19) that goes between, inner lead web joint (20) lower surface connects the enamel-cover wire harness (21) of diameter 0.3mm, the enamel-cover wire harness passes lead-in wire shoulder hole 5mm section (22) and 2mm section (23) is connected to outside lead web joint (24) upper surface, fairlead is filled sealing with high strength epoxy resin, outside lead is drawn from web joint (24) lower surface, draw by bottom lead hole (25) and bottom lead groove (27) and side lead-in wire groove (26), piston rod part thread end (29) connects adapter clamp (28) on the versatile material testing machine, hydraulic cavities bottom thread end (30) connects adapter (31) under the versatile material testing machine, hydrostatic pressing is provided by external hydraulic source, hydraulic medium is a transformer oil, in oil supply hole (32) the input hydraulic pressure chamber by hydraulic chamber's sidewall.
6, multi-axis hydrostatic test device of porous material according to claim 1, it is characterized in that, porosint test specimen (33) outside surface wraps up with the Copper Foil (34) of thickness 0.05mm, wedge-type seal device male (36) is blocked the test specimen two ends, overcoat heat-shrink tube (35), heat-shrink tube behind the heated baking (35) shrink wrapped is on porosint test specimen (33) and wedge-type seal device male (36) surface, wedge-type seal device male (36) is connected with dormant screw (39) with female (37), and is middle with the trapezoidal waterproof washer of teflon (38) sealing.
7, multi-axis hydrostatic test device of porous material according to claim 1, it is characterized in that, axially extensometer (17) is the semi-round ring shape spring leaf, top upper and lower surface (40), (41) are posted two strainometers (42), (43) and (44), (45) respectively, and the Hui Sitong full-bridge is formed in four strainometers (42), (43), (44), (45).The strainometer (42) of top upper surface (40), (43) lead end 42+, 42-, 43+, 43-receives a of connection terminal (46) successively, b, c, on the d end, the strainometer (44) of top lower surface (41), (45) lead end 44+, 44-, 45+, 45-receives the e of connection terminal (47) successively, f, g, on the h end, the 44-end of the 42-termination strainometer (44) of strainometer (42), the 43+ end of the 44+ termination strainometer (43) of strainometer (44), the 45+ end of the 43-termination strainometer 45 of strainometer (43), the 42+ end of the 45-termination strainometer (42) of strainometer (45), the a end of connection terminal (46) is located Wheatstone bridge power supply positive pole for top upper surface (40), the c end supplies negative pole for electric bridge, the b end is electric bridge output signal positive pole, the d end is electric bridge output signal negative pole, the e end of connection terminal (47) is located Wheatstone bridge power supply positive pole for top lower surface (41), the g end supplies negative pole for electric bridge, the f end is electric bridge output signal positive pole, and the h end is electric bridge output signal negative pole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102365300A CN101446531B (en) | 2008-12-30 | 2008-12-30 | Multi-axis hydrostatic test device of porous material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102365300A CN101446531B (en) | 2008-12-30 | 2008-12-30 | Multi-axis hydrostatic test device of porous material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101446531A true CN101446531A (en) | 2009-06-03 |
| CN101446531B CN101446531B (en) | 2010-09-29 |
Family
ID=40742314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008102365300A Expired - Fee Related CN101446531B (en) | 2008-12-30 | 2008-12-30 | Multi-axis hydrostatic test device of porous material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101446531B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102589409A (en) * | 2012-03-02 | 2012-07-18 | 西安交通大学 | Three-axis extensometer under high hydrostatic pressure environment |
| CN104833579A (en) * | 2015-04-24 | 2015-08-12 | 河海大学 | Test device and test method for testing strength change of soil body after occurrence of seepage deformation of dykes and dams |
| CN105424467A (en) * | 2015-10-30 | 2016-03-23 | 西安交通大学 | Multi-axis hydrostatic pressure test loading device and method based on biaxial tester |
| CN105486273A (en) * | 2015-11-27 | 2016-04-13 | 西安交通大学 | Circular-ring-type biaxial radial extensometer in hydrostatic pressure multi-axis loading test |
| CN110174312A (en) * | 2019-05-27 | 2019-08-27 | 雅砻江流域水电开发有限公司 | A kind of device and film covering method suitable for high temperature and pressure test |
| CN111982660A (en) * | 2020-08-18 | 2020-11-24 | 无锡阿卡锐特试验仪器有限公司 | Aviation wire harness water pressure testing device capable of preventing wire harness from deviating |
-
2008
- 2008-12-30 CN CN2008102365300A patent/CN101446531B/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102589409A (en) * | 2012-03-02 | 2012-07-18 | 西安交通大学 | Three-axis extensometer under high hydrostatic pressure environment |
| CN104833579A (en) * | 2015-04-24 | 2015-08-12 | 河海大学 | Test device and test method for testing strength change of soil body after occurrence of seepage deformation of dykes and dams |
| CN105424467A (en) * | 2015-10-30 | 2016-03-23 | 西安交通大学 | Multi-axis hydrostatic pressure test loading device and method based on biaxial tester |
| CN105424467B (en) * | 2015-10-30 | 2017-11-28 | 西安交通大学 | Multi-axis hydrostatic experiment loading unit and method based on twin shaft testing machine |
| CN105486273A (en) * | 2015-11-27 | 2016-04-13 | 西安交通大学 | Circular-ring-type biaxial radial extensometer in hydrostatic pressure multi-axis loading test |
| CN110174312A (en) * | 2019-05-27 | 2019-08-27 | 雅砻江流域水电开发有限公司 | A kind of device and film covering method suitable for high temperature and pressure test |
| CN110174312B (en) * | 2019-05-27 | 2021-11-05 | 雅砻江流域水电开发有限公司 | Device suitable for high-temperature high-pressure test and film coating method |
| CN111982660A (en) * | 2020-08-18 | 2020-11-24 | 无锡阿卡锐特试验仪器有限公司 | Aviation wire harness water pressure testing device capable of preventing wire harness from deviating |
| CN111982660B (en) * | 2020-08-18 | 2024-05-24 | 无锡正拓检测服务有限公司 | Aviation harness water pressure testing device capable of preventing harness deviation |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101446531B (en) | 2010-09-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101446531B (en) | Multi-axis hydrostatic test device of porous material | |
| CN205561747U (en) | Reinforced concrete and metal components warp measuring resistance strain displacement sensor | |
| CN101710007B (en) | Concrete wall body expansion internal stress measuring sensor and measuring method | |
| CN103017967B (en) | Underwater spoke type force sensor | |
| CN203310548U (en) | Screw-type cylinder-shaped tension sensor | |
| CN104359392A (en) | Pull rod type underwater structure deformation measuring device | |
| CN205384108U (en) | Measure axial tension's resistance strain force sensor | |
| CN104697710B (en) | A kind of pressure sensor calibrating device with graininess solid as medium | |
| CN103884399A (en) | Liquid level transmitter | |
| CN202974380U (en) | Liquid level transmitter | |
| CN202631163U (en) | Inner hole sealing structure of ceramic pressure sensor | |
| CN103712552A (en) | Multi-component borehole strain gauge | |
| CN203310558U (en) | Annular pressure sensor | |
| CN211347170U (en) | Pressure sensor | |
| CN212134690U (en) | Hydraulic portable consolidation apparatus | |
| CN110186589B (en) | High-water-pressure-resistant fiber grating temperature sensor and assembly method | |
| CN210719509U (en) | Zero-adjustable miniature high-protection pressure transmitter | |
| CN203365046U (en) | All-welded differential pressure sensor | |
| CN201724763U (en) | Load sensor of ceaseless pumping machine | |
| CN111443186A (en) | Hydraulic portable consolidation apparatus | |
| CN101726346A (en) | Wheel load measuring instrument with strain gauges | |
| CN201242486Y (en) | Hydraulic loader | |
| CN202216671U (en) | Fiber grating displacement meter | |
| CN207502306U (en) | Lifting lug device for testing tensile force | |
| CN204439277U (en) | A kind of pressure sensor calibrating device that is medium with graininess solid |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20100929 Termination date: 20121230 |