CN203224404U - Measuring device of test specimen deformation in high pressure water environment - Google Patents
Measuring device of test specimen deformation in high pressure water environment Download PDFInfo
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- CN203224404U CN203224404U CN 201320262461 CN201320262461U CN203224404U CN 203224404 U CN203224404 U CN 203224404U CN 201320262461 CN201320262461 CN 201320262461 CN 201320262461 U CN201320262461 U CN 201320262461U CN 203224404 U CN203224404 U CN 203224404U
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- high pressure
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Abstract
The utility model discloses a measuring device of test specimen deformation in high pressure water environment. The measuring device comprises a metal sealing body, wherein a top stopper is arranged at the upper end of the metal sealing body, an end part stopper is arranged at the lower end of the metal sealing body, a displacement sensor is arranged in the metal sealing body, a sensor measuring rod is arranged at the upper part of the displacement sensor, a transmission rod is arranged at the top end of the sensor measuring rod, the transmission rod penetrates through the top stopper, a linear bearing is arranged between the top stopper and the transmission rod, and a wire guide hole is formed in the end stopper. According to the measuring device provided by the utility model, the metal sealing body capable of withstanding water pressure is adopted to protect the displacement sensor, and an upper support is combined with an upper/lower limiting nut of the transmission rod to realize the measuring device of test specimen deformation in high pressure water environment and overcome the influence on the deformation measurement caused by water conductivity and high pressure water action.
Description
Technical field
The utility model relates to a kind of testing equipment, relates in particular to a kind of device that can measure test piece deformation in the water under high pressure environment.
Background technology
In civil engineering work, the three-axis force of building materialss such as concrete, rock is learned the existing comprehensively progressive and development of load test, in the instrument and equipment that these tests are used, to the non-conductive fluid that test specimen provides the medium of confined pressure effect to be lubricated oils, the deformation measuring device that uses in this type of hyperbaric environment is identical with deformation measuring device in the atmospheric environment.Because basement rock and the concrete body of Hydraulic and Hydro-Power Engineering are on active service under the water under high pressure environment, material mechanical performance under research water under high pressure and the mechanical force coupling is inexorable trend, design and can accurately measure the deformation measuring device of material under water under high pressure and mechanical force coupling and become key technical problem, this device can overcome water electric conductivity and water under high pressure effect to the influence of deformation measurement.
Summary of the invention
The technical problems to be solved in the utility model is to overcome water electric conductivity to the influence of deformation measurement instrument and eliminates high hydraulic pressure effect to the error of deformation measurement, and the device that in a kind of water under high pressure environment test specimen is carried out deformation measurement is provided.
The purpose of this utility model is achieved in that
Test piece deformation measurement mechanism in a kind of water under high pressure environment, it comprises metal sealer, the metal sealer upper end is provided with the top plug, the lower end is provided with the end plug, and metal sealer inside is provided with displacement transducer, and displacement transducer top is the sensor measurement bar, sensor measurement masthead end is provided with the transmission bar, transmit bar and pass the top plug, be provided with linear bearing between top plug and the transmission bar, be provided with wire guide in the plug of end.
Above-mentioned wire guide end is provided with straight coupling, and straight coupling connects the protection pipeline.
Above-mentioned top portion beyond the Great Wall is provided with protective sleeve outside being positioned at the transmission bar.
Above-mentioned end plug and metal sealer mating surface are provided with groove, are provided with O-ring seal in the groove.
Above-mentioned plug side, top radially is provided with horizontal screw, and it is used for fixedly linear bearing.
Above-mentioned transmission masthead end is provided with stationary installation, and stationary installation comprises upper limit nut and lower position nut.
The utility model has been obtained following technique effect:
The utility model adopts the metal sealer that can bear effect of water pressure to come the safeguard bit displacement sensor; and utilize to go up rest and transmit bar on/mode of lower position nut combination; realize the measurement mechanism of test piece deformation in a kind of water under high pressure environment, overcome water electric conductivity and water under high pressure effect to the influence of deformation measurement.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is structural representation of the present utility model;
Fig. 2 is use synoptic diagram of the present utility model.
Embodiment
Embodiment 1
As shown in Figure 1, test piece deformation measurement mechanism in a kind of water under high pressure environment, it comprises metal sealer 1, and the metal sealer upper end is provided with top plug 5, and the lower end is provided with end plug 4, metal sealer inside is provided with displacement transducer 2, displacement transducer top is sensor measurement bar 12, and sensor measurement masthead end is provided with and transmits bar 7, transmits bar and passes the top plug, be provided with linear bearing 6 between top plug and the transmission bar, be provided with wire guide 9 in the plug of end.
Described wire guide end is provided with straight coupling 10, and straight coupling connects protection pipeline 11.Described top portion beyond the Great Wall is provided with protective sleeve 14 outside being positioned at the transmission bar.Described end plug and metal sealer mating surface are provided with groove, are provided with O-ring seal 3 in the groove.Plug side, described top radially is provided with horizontal screw 8, and it is used for fixedly linear bearing.Described transmission masthead end is provided with stationary installation, and stationary installation comprises upper limit nut 13a and lower position nut 13b.
Displacement transducer 1 range is 50mm; outer cover length 100mm; diameter is 20mm; the external diameter of metal sealer 2 is 36mm; the groove that 2 track pitch 10mm are arranged in its two ends internal diameter 30mm scope; internal diameter is identical with the housing diameter of displacement transducer 1; displacement transducer 1 is installed in the metal sealer 2; and install O-ring seal 3 at groove; the signal wire of sensor is passed the wire guide 6 of end plug 4; again that end plug 4 and metal sealer 2 is fastening; then that top plug 5 is fastening with metal sealer 1, linear axis 6 is held be installed in the top plug 5 again, and with horizontal screw 8 linear bearing 6 is fixed; to transmit bar 7 passes linear bearing and is inserted into described metal sealer 1; lower position nut 13a is installed on the screw thread that transmits bar 7, and and then the signal wire with sensor passes straight coupling 10, and straight coupling 10 is connected with the wire guide 9 of end plug; the signal wire of sensor is passed protection spool 11, and two ends are connected with the straight coupling 10 of test apparatus plant bottom case 23 and deformation measurement assembly respectively again.
The section of described end plug is that T type and inside have wire guide; can pass for the signal wire of sensor; described straight coupling is connected with the wire guide of the enlarged diameter section of end plug; the diameter of described transmission bar is greater than the diameter of sensor measurement bar and can pass described linear bearing internal diameter; be the screw thread silk in its end 50mm scope; on described/lower position nut is installed on the screw thread of described transmission bar; the wall thickness of described metal sealer can hold the water effect of being stressed; its inside is made of the hollow of two sections different-diameters; the large-diameter hollow section is identical with the housing diameter of displacement transducer; the length of large-diameter hollow section is the small bore segment length sum of outer cover length and the end plug of displacement transducer; the minor diameter hollow section is identical with the diameter of described transmission bar; the length of little hollow section is greater than the sounding rod of displacement transducer; the groove that twice one determining deviation is respectively arranged in the 50mm at metal sealer two ends scope; described top plug is annular; there is horizontal threaded hole its side; internal radius is identical with the external diameter of linear bearing; the external diameter of annulus is identical with the external diameter of metal sealer; described protection spool can pass the signal wire of displacement transducer; have voltage endurance capability, its two ends are connected with straight coupling with the test apparatus plant bottom case respectively.
Further again, described deformation measurement assembly is that displacement transducer is installed in the described metal sealer, groove at two ends puts the sealing snare, the signal wire of displacement transducer passes the wire guide of described end plug, described end plug and described metal sealer are fastening, described top plug is fastening with described metal sealer, then described linear bearing is installed in the plug of top, and with horizontal screw linear bearing is fixed, to transmit bar passes linear bearing and is inserted in the described metal sealer, lower position nut is installed on the screw thread that transmits bar, and then the signal wire with sensor passes straight coupling, straight coupling is connected with the wire guide of end plug, and rest is installed to the upper limit pad on the tap of described transmission bar after fixing again on m.
As Fig. 2, to carrying out deformation measurement in the triaxial compression test of concrete sample in water environment, use test piece deformation measurement mechanism in the water under high pressure environment of the present utility model.Described m comprises following rest, goes up rest and pole.The length of described pole determines that according to the length of test specimen there is the hole that can pass deformation measurement component passes bar the described rest end of going up.Operate as follows:
1, concrete sample 19 is installed on the indoor sample bench 21 of the triaxial pressure of triaxial test machine; following rest 15 is fixedlyed connected with the lower bolster 18 of test specimen; pole 16 fixedlys connected with following rest 15; deformation measurement assembly A is fixedlyed connected with pole 16; protective sleeve 14 is enclosed within on the transmission bar 7 of deformation measurement assembly A; fixedlying connected with the upper padding plate 20 of test specimen after passing and transmitting bar 7 in the hole of last rest 17, installs stop nut 13b again to transmitting on the bar 7 again.
2, after each assembly of deformation measuring device installs, the control system of triaxial test machine is connected with displacement transducer, to transmit bar 7 moves down, make the deflection of displacement transducer 2 be about the 20%(10mm of total range), lower position nut 13a is screwed to last rest 17 contacts, upper limit nut 13b is screwed to last rest 17 contacts again.
3, the triaxial cell's outer cover 24 that closes is inwardly expired water-fillings by water filling port 25, and the control system by the triaxial test machine with the size of hydraulic pressure and the time of penetration of water, just can be carried out the mechanics load test according to testing program control again.
In process of the test, the motion of last rest 17 respectively with the compatibility of deformation of test specimen 19, and go up rest 17 and transmit bar 7 relative fixed, the deflection of test specimen 19 is consistent with the deflection that transmits bar 7 change sensor sounding rods, so just can measure the distortion of test specimen.
Technical conceive of the present utility model is: with the displacement transducer integral sealing; solve the problem of the displacement transducer easy conductive cisco unity malfunction under the water environment; but in water environment; the two ends of transmitting bar lay respectively under atmospheric pressure and the effect of water pressure; when hydraulic pressure raises; it is uneven to transmit the stressed effect of bar; can in metal sealer, move; exhaust until the range with displacement transducer, an end that for this reason transmits bar must have the hydraulic pressure relative fixed at height, and its motion is only relevant with the distortion of test specimen; eliminate high hydraulic pressure to the influence of deformation measurement; simultaneously protective sleeve can be after test specimen destroys fully, and transmitting bar can infinite motion, damages displacement transducer.Further, in order to eliminate water pressure to the influence of signal path, adopted the protection spool to guarantee the operate as normal of the signal wire of Data transmission.
Claims (6)
1. test piece deformation measurement mechanism in the water under high pressure environment, it is characterized in that: it comprises metal sealer (1), the metal sealer upper end is provided with top plug (5), the lower end is provided with end plug (4), and metal sealer inside is provided with displacement transducer (2), and displacement transducer top is sensor measurement bar (12), sensor measurement masthead end is provided with and transmits bar (7), transmit bar and pass the top plug, be provided with linear bearing (6) between top plug and the transmission bar, be provided with wire guide (9) in the plug of end.
2. test piece deformation measurement mechanism in the water under high pressure environment according to claim 1, it is characterized in that: described wire guide end is provided with straight coupling (10), and straight coupling connects protection pipeline (11).
3. test piece deformation measurement mechanism in the water under high pressure environment according to claim 1 is characterized in that: described top portion beyond the Great Wall is positioned at and transmits the bar outside and be provided with protective sleeve (14).
4. according to test piece deformation measurement mechanism in claim 1 or the 2 or 3 described water under high pressure environment, it is characterized in that: described end plug and metal sealer mating surface are provided with groove, are provided with O-ring seal (3) in the groove.
5. according to test piece deformation measurement mechanism in claim 1 or the 2 or 3 described water under high pressure environment, it is characterized in that: plug side, described top radially is provided with horizontal screw (8), and it is used for fixedly linear bearing.
6. according to test piece deformation measurement mechanism in claim 1 or the 2 or 3 described water under high pressure environment, it is characterized in that: described transmission masthead end is provided with stationary installation, and stationary installation comprises upper limit nut (13a) and lower position nut (13b).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320262461 CN203224404U (en) | 2013-05-15 | 2013-05-15 | Measuring device of test specimen deformation in high pressure water environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320262461 CN203224404U (en) | 2013-05-15 | 2013-05-15 | Measuring device of test specimen deformation in high pressure water environment |
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| Publication Number | Publication Date |
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| CN203224404U true CN203224404U (en) | 2013-10-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201320262461 Expired - Fee Related CN203224404U (en) | 2013-05-15 | 2013-05-15 | Measuring device of test specimen deformation in high pressure water environment |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103278392A (en) * | 2013-05-15 | 2013-09-04 | 三峡大学 | Test piece deformation measurement device in high-pressure water environment |
| CN108099382A (en) * | 2017-12-18 | 2018-06-01 | 张家港市艾成机械有限公司 | A kind of portable plate printing device |
| CN109187926A (en) * | 2018-09-18 | 2019-01-11 | 太原理工大学 | Three axis seepage flow test device of fractured coal and rock and desorption-diffusion-seepage tests system |
| CN117516462A (en) * | 2024-01-05 | 2024-02-06 | 汉海线缆有限公司 | Cable deformation detection device with clearance function |
-
2013
- 2013-05-15 CN CN 201320262461 patent/CN203224404U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103278392A (en) * | 2013-05-15 | 2013-09-04 | 三峡大学 | Test piece deformation measurement device in high-pressure water environment |
| CN108099382A (en) * | 2017-12-18 | 2018-06-01 | 张家港市艾成机械有限公司 | A kind of portable plate printing device |
| CN109187926A (en) * | 2018-09-18 | 2019-01-11 | 太原理工大学 | Three axis seepage flow test device of fractured coal and rock and desorption-diffusion-seepage tests system |
| CN109187926B (en) * | 2018-09-18 | 2021-04-20 | 太原理工大学 | Three-axis seepage test device for fractured coal rock mass and desorption-diffusion-seepage test system |
| CN117516462A (en) * | 2024-01-05 | 2024-02-06 | 汉海线缆有限公司 | Cable deformation detection device with clearance function |
| CN117516462B (en) * | 2024-01-05 | 2024-04-09 | 汉海线缆有限公司 | Cable deformation detection device with clearance function |
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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: 20131002 Termination date: 20140515 |