CN104614102B - A kind of ground pressure sensor that is monitored based on three dimensions - Google Patents

A kind of ground pressure sensor that is monitored based on three dimensions Download PDF

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Publication number
CN104614102B
CN104614102B CN201410696083.2A CN201410696083A CN104614102B CN 104614102 B CN104614102 B CN 104614102B CN 201410696083 A CN201410696083 A CN 201410696083A CN 104614102 B CN104614102 B CN 104614102B
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CN
China
Prior art keywords
piston
oval
ground pressure
shaped shell
circuit board
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Expired - Fee Related
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CN201410696083.2A
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Chinese (zh)
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CN104614102A (en
Inventor
杜玉喜
董杰
杨永腾
杨鹏
屈茂芹
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SHANDONG LUKE AUTOMATION TECHNOLOGY Co Ltd
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SHANDONG LUKE AUTOMATION TECHNOLOGY Co Ltd
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Priority to CN201410696083.2A priority Critical patent/CN104614102B/en
Publication of CN104614102A publication Critical patent/CN104614102A/en
Application granted granted Critical
Publication of CN104614102B publication Critical patent/CN104614102B/en
Expired - Fee Related legal-status Critical Current
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Abstract

The present invention is a kind of ground pressure sensor that is monitored based on three dimensions, is made up of oval-shaped shell, outgoing line device, circuit board and three orthogonal ground pressure monitoring heads.Oval-shaped shell upper end is provided with outgoing line device, outgoing line device includes that A0 clamp nuts, A0 have hole pad, A0 non-porous pads, A0 sealing rings and communicating joint, the device can effectively ensure that the materials such as mud, sand, water will not be entered into inside oval-shaped shell, ensure oval-shaped shell internal components safety, good environment is provided for its work.

Description

A kind of ground pressure sensor that is monitored based on three dimensions
Technical field
The invention belongs to ground pressure sensor field, specifically a kind of ground pressure sensor that is monitored based on three dimensions.
Background technology
At present, in ground pressure monitoring field, widely used various kinds of sensors is monitored, the pressure transducer for adopting at present It is primarily present problems with:1st, real space three-dimensional monitoring cannot be accomplished.Such as publication number:202033140U, publication date: 2011-11-09, the utility model technical scheme of entitled " triaxiality harvester ", the technical scheme can only realize to gold The monitoring that presses in the perpendicular planar range in category cylinder barrel lenght direction, it is impossible to accomplish to carry out line direction equal with metal cylinder cylinder The monitoring of pressure, so monitoring of the technical scheme mainly for pressure in certain or multiple planar ranges being parallel to each other, it is impossible to Accomplish to press monitoring to above-mentioned plane vertical direction.If realizing three-dimension monitor using similar above-mentioned technology, just must be not Arrange that multiple monitoring devices, multiple monitoring devices cooperate and just can complete three-dimension monitor with angle, this will certainly increase the time And Financial cost, affect the accuracy of monitoring.2nd, direction can only be pressed to be monitored according to predetermined, once come press direction occur Change, it is impossible to monitoring pressure change promptly and accurately.3rd, Monitoring Data is drifted about, and big, back to zero is poor, and system stability workability is poor.Existing Often accurate in order to realize Monitoring Data in technology, monitoring sensitivity is improved, all can be feelings of stress such as strain resistor, varistors By the surface that part is laid in device, this results in above-mentioned part and is easy to by the extruding destruction of native stone, and a lot of devices are once pressing Later just cannot back to zero, have a strong impact on monitoring effect.4th, in prior art, pressure transducer profile based on square, cylindrical, These shapes installations are more complicated, and the installation bore diameter of needs is big, and installation cost is high, and these shapes stress itself does not conform to Reason, under external high pressure effect, is easily deformed, or even is subject to crushing.
Content of the invention
The present invention is a kind of ground pressure sensor that is monitored based on three dimensions, by oval-shaped shell, outgoing line device, circuit board With three orthogonal ground pressure monitoring head compositions.Oval-shaped shell upper end is provided with outgoing line device, and outgoing line device includes that A0 is compressed Nut, A0 have hole pad, A0 non-porous pads, A0 sealing rings and communicating joint, the device to can effectively ensure that the materials such as mud, sand, water will not Enter into inside oval-shaped shell, it is ensured that oval-shaped shell internal components safety, good environment is provided for its work.In ellipse Enclosure interior is provided with circuit board, the components and parts of the circuit board using SMD, with low in energy consumption, the advantages of small volume, using height The potentiometer of precision, it is ensured that precision and accuracy that data are adjusted, reduces Monitoring Data drift.Three are pressed prison orthogonally Gauge head is located at the lower end and middle part of oval-shaped shell respectively, can monitor space each side simultaneously and always press, and believe pressure respectively Number the signal of telecommunication is changed into, then electric signal transmission is processed to circuit board, the signal transmission through circuit board process is to ground Device.Using arranging after three orthogonal ground pressure monitoring heads simultaneously, the pressure in three directions, and nothing can be monitored simultaneously Need to judge in advance to press direction, pressing direction pressure change can accurately be still monitored in the case of being mutated, and can interpolate that master To press direction.
Used as improvement, ground pressure monitoring head is by putting forth effort plate, piston, elastomer, straingauge, calcium grease, sealing ring, oil cylinder Composition, is wherein puted forth effort plate and is located at ground pressure monitoring head foremost, and be connected with piston, and elastomer is integral for bottle cap with oil cylinder group Shape, piston can be moved freely on the inside of oil cylinder, and calcium grease is located between piston and elastomer, and straingauge is attached at elasticity External surface, sealing ring are surrounded on outer surface of piston.Put forth effort plate to be responsible for gathering to press, and coupled work is given by pressure transmission Plug, can extrude the calcium grease between piston and elastomer in the presence of pressing, on the one hand calcium grease can play piston Lubrication, reduces the frictional resistance between piston and oil cylinder, and the pressure that another aspect calcium grease can pass over piston is uniform The inner surface for passing to elastomer, elastomer inner surface can produce homogeneous deformation under the pressure action of calcium grease, and attach Also can be deformed therewith, and this deformation is converted into the signal of telecommunication passing to circuit in the straingauge of outer elastomeric surface Plate.Sealing ring is located between piston and oil cylinder, can be played the sealing function to calcium grease, and not affected piston relative to oil Cylinder is moved freely, and come after pressing and laying down, under the resilient pressure effect of calcium grease, piston, is puted forth effort plate and can be automatically reverted to Initial position, calcium grease internal pressure disappear therewith, and elastomer, straingauge can also automatically revert to original position.
Used as improvement, straingauge is that circle, circular straingauge have uniform force, avoid the occurrence of stress concentration The advantages of, institute's Monitoring Data of the present invention can be made to possess good linear change, so as to improve monitoring accuracy, circular strain resistor The characteristics of piece also has easily laminating, good manufacturability.
Used as improvement, oval-shaped shell external diameter is 50 millimeters.
The invention has the beneficial effects as follows:
1st, three-dimensional ground pressure monitoring can just be realized with a device only, as the present invention is in three mutually orthogonal directions Ground pressure monitoring head is all arranged, the pressure change in three directions can be monitored simultaneously, it is possible to judge mainly to press direction.This Bright enormously simplify apparatus relative to prior art, reduce equipment cost, reduce installation cost, reduce failure Rate.
2nd, without the need for judging pressing direction in advance,, in the case of pressing direction to be mutated, also accurately detecting pressure change, and Can judge mainly to press direction.
3rd, the built-in process of strain resistor is adopted, it is to avoid strain resistor is directly contacted with the soil body, effective protection strain resistor, Extend strain resistor service life.Using piston-type hydro pressure device, on the one hand ensure that and accurately pass to electrostrictive strain to press Resistance, pressure data at accurate measurements, on the other hand, the device can avoid the occurrence of jam problem on to greatest extent, make this Bright can accurate back to zero, drift about little.
4th, oval-shaped shell structure, this structure is adopted to be easy to install in the borehole, and relative to square structure to boring Hole dimensional requirement is less, reduces bore operation cost;Oval-shaped shell structure stress rationally, can bear larger outside pressure Power, it is ensured that itself is not subject to crushing.
Description of the drawings
Accompanying drawing 1 is the profile of the present invention.
Accompanying drawing 2 is the outside drawing of the present invention.
Accompanying drawing 3 is ground pressure monitoring head detail drawing.
Specific as follows:
A0 clamp nuts 1, A0 have hole pad 2, A0 non-porous pads 3, A0 sealing rings 4, communicating joint 5, oval-shaped shell 6, circuit board 7, put forth effort plate 8, straingauge 9, calcium grease 10, elastomer 11, sealing ring 12, piston 13, oil cylinder 14.
Specific embodiment
With reference to the accompanying drawings, a kind of ground pressure sensor that is monitored based on three dimensions, by oval-shaped shell 6, outgoing line device, circuit Plate 7 and three orthogonal ground pressure monitoring head compositions.6 upper end of oval-shaped shell is provided with outgoing line device, and outgoing line device includes A0 Clamp nut 1, A0 has hole pad 2, A0 non-porous pads 3, A0 sealing rings 4 and communicating joint 5, the device to can effectively ensure that mud, sand, water etc. Material will not be entered into inside oval-shaped shell 6, it is ensured that 6 internal components safety of oval-shaped shell, provide good ring for its work Border.Be provided with circuit board 7 inside oval-shaped shell, the components and parts of the circuit board 7 using SMD, with low in energy consumption, small volume The advantages of, using high-precision potentiometer, it is ensured that precision and accuracy that data are adjusted, reduce Monitoring Data drift.Three phases Mutually vertical ground pressure monitoring head is located at the lower end and middle part of oval-shaped shell 6 respectively, can monitor space each side simultaneously and always press, And pressure signal is changed into the signal of telecommunication respectively, then electric signal transmission is processed to circuit board 7, is processed through circuit board 7 Signal transmission to ground installation.Using arranging after three orthogonal ground pressure monitoring heads simultaneously, three can be monitored simultaneously The pressure in direction, and without the need for judging pressing direction in advance, pressing direction still monitor pressure in the case of being mutated Change, and can interpolate that mainly to press direction.The ground pressure monitoring head is by putting forth effort plate 8, piston 13, elastomer 11, strain resistor Piece 9, calcium grease 10, sealing ring 12, oil cylinder 14 are constituted, wherein put forth effort plate 8 positioned at ground pressure monitoring head foremost, and with piston 13 It is connected, elastomer 11 is integral with 14 groups of oil cylinder for bottle cap shape, piston 13 can be moved freely on the inside of oil cylinder 14, calcium grease 10 It is located between piston 13 and elastomer 11, straingauge 9 is attached at 11 outer surface of elastomer, and sealing ring 12 is surrounded on piston 13 Outer surface.Putting forth effort plate 8 to be responsible for collection to press, and coupled piston 13 being given by pressure transmission, piston 13 is in the effect to press The lower calcium grease 10 that can be extruded between piston 13 and elastomer 11,10 one side of calcium grease can play lubrication, subtract Frictional resistance between valve piston 13 and oil cylinder 14, another aspect calcium grease 10 can uniformly transmit the pressure that piston is passed over To the inner surface of elastomer 11,11 inner surface of elastomer can produce homogeneous deformation under the pressure action of calcium grease 10, and attach Also can be deformed therewith, and this deformation is converted into the signal of telecommunication passing in the straingauge 9 of 11 outer surface of elastomer Circuit board 7.Sealing ring 12 is located between piston 13 and oil cylinder 14, can play the sealing function to calcium grease 10, and not shadow Piston 13 moving freely relative to oil cylinder 14 is rung, come after pressing and laying down, under the resilient pressure effect of calcium grease 10, piston 13rd, put forth effort plate 8 and can automatically revert to initial position, 10 internal pressure of calcium grease disappears therewith, elastomer 11, straingauge 9 Original position can also be automatically reverted to.

Claims (1)

1. a kind of based on three dimensions monitor ground pressure sensor, it is characterised in that:By oval-shaped shell(6), outgoing line device, Circuit board(7)With three orthogonal ground pressure monitoring head compositions, oval-shaped shell(6)Upper end is provided with outgoing line device, goes out traditional thread binding Put including A0 clamp nuts(1), A0 have hole pad(2), A0 non-porous pads(3), A0 sealing rings(4)And communicating joint(5), ellipse Circular shell(6)Inside is provided with circuit board(7), three orthogonal ground pressure monitoring heads are respectively positioned at oval-shaped shell(6)'s Lower end and middle part, can monitor space each side simultaneously and always press, and pressure signal is changed into the signal of telecommunication respectively, then by telecommunications Number being transferred to circuit board is processed, and the signal transmission through circuit board process is to ground installation;The ground pressure monitoring head is by putting forth effort Plate(8), piston(13), elastomer(11), straingauge(9), calcium grease(10), sealing ring(12), oil cylinder(14)Composition, its In put forth effort plate(8)It is located at ground pressure monitoring head foremost, and and piston(13)It is connected, elastomer(11)With oil cylinder(14)Composition one Body be bottle cap shape, piston(13)Can be in oil cylinder(14)Inner side moves freely, calcium grease(10)It is located at piston(13)And elastomer (11)Between, straingauge(9)It is attached at outer elastomeric surface, sealing ring(12)It is surrounded on piston(13)Outer surface.
CN201410696083.2A 2014-11-27 2014-11-27 A kind of ground pressure sensor that is monitored based on three dimensions Expired - Fee Related CN104614102B (en)

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CN201410696083.2A CN104614102B (en) 2014-11-27 2014-11-27 A kind of ground pressure sensor that is monitored based on three dimensions

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Application Number Priority Date Filing Date Title
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CN104614102B true CN104614102B (en) 2017-03-15

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Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5148705A (en) * 1990-06-25 1992-09-22 Louisiana State University And Agricultural And Mechanical College Method and apparatus for determining the wettability of an earth formation
WO2013016734A1 (en) * 2011-07-28 2013-01-31 Schlumberger Canada Limited System and method for performing wellbore fracture operations
CN103046524A (en) * 2012-12-28 2013-04-17 东南大学 Piezocone penetration test probe for probing underground magnetic field intensity
CN204479218U (en) * 2014-11-27 2015-07-15 山东鲁科自动化技术有限公司 A kind of ground pressure sensor based on three dimensions monitoring

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