CN103017967B - Underwater spoke type force sensor - Google Patents
Underwater spoke type force sensor Download PDFInfo
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- CN103017967B CN103017967B CN201210519392.3A CN201210519392A CN103017967B CN 103017967 B CN103017967 B CN 103017967B CN 201210519392 A CN201210519392 A CN 201210519392A CN 103017967 B CN103017967 B CN 103017967B
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- wheel rim
- hub
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- spoke
- rim
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Abstract
The invention provides an underwater spoke type force sensor. The underwater spoke type force sensor comprises an elastic component for sensing being measured and a transformation amplifier element for force signals processing. The elastic component includes a rim, spokes, a hub, an upper cover plate, a lower cover plate and strain gages, wherein each of the spokes is formed by four elastic shear beams, both ends of each of the spokes are connected between the hub and the rim, each of the front sides and the reverse sides of the four spokes is attached to the strain gauges, the upper cover plate and the lower cover plate are respectively fixed to the upper ends and lower ends of the rim, and the contact surfaces of both the upper cover plate and the lower cover plate and the rim as well as the upper cover plate and the lower cover plate and the hub are provided with sealing washers. The transformation amplifier element includes signal data lines and a circuit board, wherein the circuit board is fixed in a sealed cabin and the signal data lines are connected between an upper strain gage of the spokes and the circuit board in the sealed cabin. The underwater spoke type force sensor is high in strength and good in reliability and can detect the rope tension in real time. The underwater spoke type force sensor can work in the amphibious environment and can be applied to the detection of the pull force, drag force and extrusion force in other devices.
Description
Technical field
What the present invention relates to is a kind of power sensor.The online power sensor detecting of diamond saw rope tension when specifically a kind of saw of can restricting under water again by land cuts pipeline.
Background technology
The saw of restricting is under water the equipment for offshore oilfield pipeline maintenance.This equipment is mainly realized offshore oilfield pipeline cutting operation, in order more effectively to complete cutting operation, need to be equipped with saw rope tension force and detect control system.By detecting the cutting radial feed state of control system adjustment rope saw, make saw rope in the tension range of safety, carry out cutting work.
When underwater sensor design, there is following difficulties: because sensor is in certain sea water advanced middle work, should there is good underwater sealing performance; Aspect volume structure, must adapt with rope saw body; Sensor must reach under 0.5%FS requirement condition meeting accuracy of measurement, the feature such as have anti-vibration, be easy to install, power consumption is little.
Relevant rope tension detects and the open report of sensor mainly comprises:
1, Chen Xianzhong, grey large strong, appoint it Wei. multirope friction winder steel wire rope tension on-line monitoring sensor. and the journal .1998 of University of Science & Technology, Beijing (10), introduce a kind of new type mining multirope friction winder dynamic tension monitoring sensor, adopt disk pressure elastic membrane to export as polar distance differential capacitor signal, sensor elastic sensing element and change-over circuit are integrated totally-enclosedly to be manufactured and designed, there is good anti-vibration and shock resistance, be applicable to the severe working environment in down-hole.
2, Jin Huawei, Zhang Xin, Lv Jiajia. the design of strain-type armored rope tension sensor. mining machinery .2010 (07), according to the requirement of multi-rope winder steel wire rope dynamic tension test, has designed a kind of sensor for direct measuring steel wire rope dynamic tension.This sensor has adopted strain-type to shear measuring principle, has volume little, and measurement range is large, is convenient to install, and does not change the features such as coupling arrangement structure.
3, a tension monitoring device for cargo binding steel wire rope, number of patent application 201010268558.X, it comprises piezoelectric activated module, tonometry module and alarm communication module.Piezoelectric activated module comprises piezo ceramic element, piezoelectric activated mainboard; Piezoelectric activated mainboard comprises power switch circuit, signal processing circuit and single-chip microcomputer; Tonometry module comprises side-pressure tension sensor, measures mainboard; Measure mainboard and comprise tension force output circuit, power switch circuit, demonstration charactron; Alarm communication module comprises communication mainboard, wireless communication unit and alarm unit, radio communication GPRS; Communication mainboard comprises interface circuit, comparison controller, safety value regulating circuit.Piezoelectric activated mainboard, measurement mainboard, alarm communication module and battery are fixed in protecting sheathing.Shell is fixed in side-pressure tension sensor.Piezo ceramic element is attached in side-pressure tension sensor, when operation and wire rope keep in touch.Device is clamped on wire rope by side-pressure tension sensor.
4, Cao Liwen, Ding Haijuan. diamond bead string rope tension pick-up and Performance Analysis. industry measurement, 2007 (09), introduce the principle of work of diamond bead string rope tension pick-up, and carried out the demarcation of sensor.By the Performance Analysis to sensor, this sensor has reached designing requirement, and this tension pick-up can be measured bead string rope tension force accurately, reliably.
Can be drawn by above-mentioned document, document 1-3 saw rope tension detection is mainly in tested saw rope, to seal in dynamometer or force cell, adopt in addition contact saw rope tension pick-up, saw rope tension signal is converted to snap-in force signal and the displacement signal of sensor, obtain thus saw rope tension detection value.Because the saw saw rope cutting movement of restricting is under water the revolution form of taking turns going along with, these force cells cannot be installed in saw rope, and signal wire can not be connected with the external world, and therefore, above method all can not be used.Document 4 metering systems are that rope saw bead string rope in cutting process produces pressure to angle sheave, this pressure is passed to elastic shaft and is made it to produce strain signal proportional to tension force, although this tension pick-up can be measured bead string rope tension force exactly, but elastic shaft intensity is low, in real work, there will be the fault of axle fracture, cause sensor to damage, thereby poor reliability.
Summary of the invention
The object of the present invention is to provide that a kind of intensity is high, good reliability, can detect in real time the power of the radial under water sensor of saw rope tension force.
The object of the invention is to be achieved by the following scheme:
Comprise the elastic parts measured for direct feeling, conversion amplifier element for force signal processing; Described elastic parts comprises wheel rim, spoke, wheel hub, upper cover plate, lower cover, foil gauge, described spoke is made up of four elastic shear beams, the two ends of every spoke are connected between wheel hub and wheel rim, pros and cons at four spokes posts respectively foil gauge, upper and lower cover plates is separately fixed at wheel rim upper and lower side, and the surface of contact place of upper and lower cover plates and wheel rim and the surface of contact place of upper and lower cover plates and wheel hub are all added with packing washer; Described conversion amplifier element comprises signal data line, circuit board, and circuit board is fixed in pressurized capsule, signal data line connect and spoke in foil gauge and pressurized capsule between circuit board.
The present invention can also comprise:
1, described wheel rim is made up of upper wheel rim and lower wheel rim two parts, described wheel hub is made up of upper wheel hub and lower hub, between upper wheel rim and lower wheel rim and upper wheel hub and lower hub, be connected by bolt, between described spoke is embedded in inside lower hub outside and upper and lower wheel rim.
2, between wheel rim and pressurized capsule, be connected with away spool, described signal data line is arranged in away in spool.
3, described pressurized capsule outer end has external thread, there is annular seal groove end, in seal groove, be equipped with an O RunddichtringO, gland bonnet has internal thread and realizes and being threaded with pressurized capsule, realize static seal by an O RunddichtringO, watertight cable joint is threaded connection the output to underwater sealing control cabinet for data on pressurized capsule sidewall.
4, one end of walking spool described in is connected with pressurized capsule, walks spool front end and has fine thread, walks spool and is screwed into wheel rim sidewall tapping by the fine thread of front end, is equipped with the 2nd O RunddichtringO walking conduit end.
The feature of the power of radial under water sensor of the present invention is that intensity is high, good reliability, can detect in real time saw rope tension force, keeps in zone of reasonableness by feedback system control cutting tension force.It can work in amphibious environment, also can apply pulling force in other device simultaneously, pull the detection such as power, extruding force.
Brief description of the drawings
Fig. 1 is external structure schematic diagram of the present invention.
Fig. 2 is the A-A cut-open view of Fig. 1.
Fig. 3 a is the stressed schematic diagram of flexible member, and Fig. 3 b is the vertical view of Fig. 3 a.
Fig. 4 is that saw rope of the invention process detects principle schematic.
Embodiment
Radial power sensor of the present invention is mainly by for the measured elastic parts of direct feeling, for the conversion amplifier element of force signal processing, form for the seal assembly of element underwater sealing.
Described elastic parts comprises upper and lower wheel rim, spoke, upper lower hub, upper cover plate, lower cover, coupling bolt, packing washer, foil gauge and connection electric wire thereof everywhere.Described spoke is made up of four elastic shear beams, is embedded between lower hub outside and upper and lower wheel rim inner side.Pros and cons at four spokes posts respectively foil gauge, reflects the distortion of spoke by foil gauge, thereby obtains the size of external force.Described upper cover plate is fixed on upper wheel rim upper end by coupling bolt, and same, lower cover is also fixed on lower wheel rim lower end by coupling bolt.Described upper lower hub is connected by coupling bolt, drives spoke to move up and down together.Between described each element surface of contact, be all added with packing washer and realize the sealing of this sensor elastic parts.
Described conversion amplifier element comprises signal data line, circuit board, register pin.Circuit board in foil gauge and pressurized capsule on described signal data line connection spoke, circuit board is fixed in pressurized capsule by register pin.
Described seal assembly comprises pressurized capsule, gland bonnet, watertight cable joint, O RunddichtringO.Described pressurized capsule outer end has external thread, and there is annular seal groove end, is equipped with O RunddichtringO in seal groove.Described gland bonnet has internal thread, realizes and being threaded with pressurized capsule, realizes static seal by O-ring seal.Described watertight cable joint is threaded connection on pressurized capsule sidewall, realizes the output of data to underwater sealing control cabinet.
Described conversion amplifier element and seal element constitute closed circuit plate cavity, the spool of walking that this cavity has fine thread by front end is screwed into wheel rim sidewall tapping, be equipped with O RunddichtringO in end, realize away between spool and wheel rim and sealing by fine thread screwing length and O-ring seal.
Below in conjunction with Fig. 1-Fig. 2, elaborate the preferred embodiment of the present invention.
One under water radial power sensor by upper wheel rim 1, spoke 2, upper wheel hub 3, short coupling bolt 4, upper hub seal ring 5, upper cover plate 6, upper cover plate O-ring seal 7, lower wheel rim 8, long coupling bolt 9, lower cover 10, lower hub O-ring seal 11, wheel hub coupling bolt 12, lower hub 13, lower cover O-ring seal 14, walk conduit end O-ring seal 15, walk spool 16, signal data line 17, register pin 18, circuit board 19, pressurized capsule 20, end cap seal circle 21, gland bonnet 22 form.
Upper wheel rim 1 upper surface is connected with upper cover plate 6 by short coupling bolt 4, and upper wheel rim 1 lower surface is fixing together by lower wheel rim 8, lower cover 10 by long coupling bolt 9.On 8 inner sides, have annular groove at upper wheel rim 1, lower wheel rim, under long coupling bolt 9 screws, clamp 4 spoke 2 outsides, post foil gauge at spoke 2 pros and cons; Equally, upper wheel hub 3 also has annular groove with lower hub 13 outsides, by wheel hub coupling bolt 12, spoke 2 inner sides is clamped, and like this, wheel hub motion moves up and down drive spoke 2, thereby induces the size of tension signal.Between each element surface of contact, be all added with packing washer, these elements have formed sensor elastic parts I.
By walking spool 16, signal wire 17 is guided in pressurized capsule 20 on circuit board 19 by spoke 2 foil gauge places; Circuit board 19 is fixed in pressurized capsule 20 by register pin 18, by watertight cable joint III, signal is exported to the external world; Pressurized capsule 20 outer ends have external thread, and there is annular seal groove end, are equipped with O RunddichtringO 21 in seal groove, and gland bonnet 22 has internal thread, carry out thread seal be connected with pressurized capsule 20, form closed circuit plate combined cavity II.
The spool 16 of walking that circuit board composition cavity II has fine thread by front end is screwed into lower wheel rim 8 side-wall hole places, connect elastic parts I, be equipped with O RunddichtringO in end, realize away sealing between spool 16 and lower wheel rim 8 by fine thread screwing length and O-ring seal.
In conjunction with Fig. 3 a-Fig. 3 b, principle of work of the present invention is described:
This sensor has two kinds of forms when mounted, and one is that wheel hub 3 coordinates as pedestal with fixture axis using center pit, and wheel rim 1 is as external force F actuating member, and like this, wheel hub 3 is subject to the symmetrical counter-force that size equates with external force F; Another kind is that wheel rim 1 outer wall coordinates as pedestal with fixture mesopore, and wheel hub 3 is as external force F actuating member, and same wheel rim 1 is subject to the symmetrical counter-force that size equates with external force F.This symmetrical counter-force, make spoke 2 produce parallelogramming deflection, make the foil gauge that is attached to four spoke 2 pros and cons produce corresponding deformation, convert resistance change to, by bridge balancing circuit, resistance change is changed into the output voltage Δ U of electric bridge, this voltage signal Δ U is treated and amplify, and just can reflect the size of external force.
In conjunction with Fig. 4, the embodiment of restricting the present invention under water saw saw rope tension force detecting is in real time described:
The saw saw rope of restricting under water tension pick-up design parameter is: 1. range: 0～10000N; 2. Full-span output: 5 ± 0.1VDC; 3. accuracy: ± 0.05%FS; 4. zero point drift: 0.02%FS; 5. thermal zero drift: 0.02%FS/ DEG C; 6. allow overload: 120%; 7. working temperature :-40～85 DEG C; 8. frequency response: >=5KHz.
The physical construction of the saw saw rope of restricting under water tension detection system is made up of guide screw lock jack panel 31, horizontal end plate 32, front end coupling bolt 33, side rails riser 34, power sensor 35, thrust bearing 36, leading screw 37, rear end coupling bolt 38, pedestal 39, feed screw nut 40, guide rail 41, guide wheel shaft 42, angle sheave 43, saw rope 44.Power sensor 35 is arranged on leading screw 37, for the first mounting means, specifically wheel hub 3 coordinates with fixture leading screw 37 with center pit, for making to be stressedly evenly equipped with thrust bearing 36 in wheel hub 3 rear ends, leading screw 37 and feed screw nut 40 coordinate for acme thread, feed screw nut 40 upper ends are that bearing pin form is inserted in pedestal 39 holes fixing, pedestal 39 is fixedly connected with frame bolt by four connecting hole a, therefore, feed screw nut 40 transfixions, simultaneously, leading screw 37 is set up after tension force by guide screw lock jack panel 31 lock-bits in turn, like this, in the time of cutting, leading screw 37 is motionless, be that wheel hub 3 is motionless, and wheel rim 1 is fixed by horizontal end plate 32 ends, horizontal end plate 32 is connected with two side rails risers 34 by bolt 33, saw rope 44 is walked around angle sheave 43, guide wheel shaft 42 is connected with two side rails 41 bearing pins, have with on two side rails 41 dovetail groove that matches at pedestal 39, two side rails risers 34 can be along pedestal 39 transverse shiftings, like this, saw rope 44 tension force will be passed on horizontal end plate 32 by guide wheel shaft 42, two side rails risers 34 with joint efforts, and wheel rim 1 will be subject to external force F effect.
It is in the time of rope saw cutting pipeline that the saw saw rope of restricting under water tension force detects principle, saw rope 44 tension force are made a concerted effort real-time effect on horizontal end plate 32, horizontal end plate 32 is pressed on the wheel rim 1 of power sensor 35, the big or small symmetrical counter-force equating with external force F will be subject at stationary parts wheel hub 3, this symmetric force makes spoke 2 produce parallelogramming deflection, make the foil gauge that is attached to four spoke pros and cons produce corresponding deformation, process and amplify through signal, just can reflect online external force F, it is the size of saw rope tension force, thereby, realize the online of saw rope tensile force and detected in real time.
Claims (1)
1. a radial power sensor under water, comprises the elastic parts measured for direct feeling, conversion amplifier element for force signal processing; It is characterized in that: described elastic parts comprises wheel rim, spoke, wheel hub, upper cover plate, lower cover, foil gauge, described spoke is made up of four elastic shear beams, the two ends of every spoke are connected between wheel hub and wheel rim, pros and cons at four spokes posts respectively foil gauge, upper and lower cover plates is separately fixed at wheel rim upper and lower side, and the surface of contact place of upper and lower cover plates and wheel rim and the surface of contact place of upper and lower cover plates and wheel hub are all added with packing washer; Described conversion amplifier element comprises signal data line, circuit board, and circuit board is fixed in pressurized capsule, signal data line connect and spoke in foil gauge and pressurized capsule between circuit board;
Described wheel rim is made up of upper wheel rim and lower wheel rim two parts, and described wheel hub is made up of upper wheel hub and lower hub, is connected, between described spoke is embedded in inside lower hub outside and upper and lower wheel rim between upper wheel rim and lower wheel rim and upper wheel hub and lower hub by bolt;
Between wheel rim and pressurized capsule, be connected with away spool, described signal data line is arranged in away in spool;
Described pressurized capsule outer end has external thread, there is annular seal groove end, in seal groove, be equipped with an O RunddichtringO, gland bonnet has internal thread and realizes and being threaded with pressurized capsule, realize static seal by an O RunddichtringO, watertight cable joint is threaded connection the output to underwater sealing control cabinet for data on pressurized capsule sidewall;
Described walk one end of spool be connected with pressurized capsule, walk spool front end and have fine thread, walk spool and be screwed into wheel rim sidewall tapping by the fine thread of front end, be equipped with the 2nd O RunddichtringO walking conduit end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210519392.3A CN103017967B (en) | 2012-12-06 | 2012-12-06 | Underwater spoke type force sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210519392.3A CN103017967B (en) | 2012-12-06 | 2012-12-06 | Underwater spoke type force sensor |
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| Publication Number | Publication Date |
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| CN103017967A CN103017967A (en) | 2013-04-03 |
| CN103017967B true CN103017967B (en) | 2014-12-03 |
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| CN201210519392.3A Expired - Fee Related CN103017967B (en) | 2012-12-06 | 2012-12-06 | Underwater spoke type force sensor |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104330204A (en) * | 2014-11-25 | 2015-02-04 | 黑龙江大学 | Tensile force detecting device of beaded rope for pipeline cutting rope sawing machine |
| CN105043632B (en) * | 2015-07-30 | 2017-06-16 | 中国水产科学研究院南海水产研究所 | A kind of subsea anchor rope tension harvester |
| DE102016122845A1 (en) * | 2016-11-28 | 2018-05-30 | Tq-Systems Gmbh | Harmonic pinion gear, torque measuring device and freewheel assembly |
| CN109990988B (en) * | 2017-12-29 | 2023-11-07 | 上海共联通信信息发展有限公司 | Board card performance testing device for 4G wireless base station equipment |
| CN108981870B (en) * | 2018-09-12 | 2023-11-28 | 中机试验装备股份有限公司 | Spoke sensor |
| CN111157219A (en) * | 2019-11-26 | 2020-05-15 | 中国空气动力研究与发展中心低速空气动力研究所 | Rotating shaft balance for propeller power influence wind tunnel test |
| CN112857647B (en) * | 2021-03-25 | 2023-01-03 | 哈尔滨工程大学 | Piston ring circumference elasticity detection device |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US6038933A (en) * | 1997-07-15 | 2000-03-21 | Mts Systems Corporation | Multi-axis load cell |
| US5969268A (en) * | 1997-07-15 | 1999-10-19 | Mts Systems Corporation | Multi-axis load cell |
| CN1220037C (en) * | 2003-09-19 | 2005-09-21 | 哈尔滨工业大学 | Miniature all-plane 6D force and moment sensor |
| CN2650092Y (en) * | 2003-11-13 | 2004-10-20 | 东南大学 | Automobile wheel multi-dimensional force measuring sensor |
| JP2005300465A (en) * | 2004-04-15 | 2005-10-27 | Nitta Ind Corp | Multiaxial sensor |
| JP2007315878A (en) * | 2006-05-25 | 2007-12-06 | Mitsubishi Electric Corp | Multi-axis force/moment sensor |
| CN100402973C (en) * | 2006-08-24 | 2008-07-16 | 北京华油先锋石油装备技术有限公司 | Oil well depth and cable pulling force measurement device |
| CN102087153B (en) * | 2010-11-04 | 2012-10-31 | 燕山大学 | Wheel spoke type fault-tolerant six-dimension force sensor with parallel structure |
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Effective date of registration: 20201201 Address after: Area A129, 4th floor, building 4, Baitai Industrial Park, Yazhou Bay science and Technology City, Yazhou District, Sanya City, Hainan Province, 572024 Patentee after: Nanhai innovation and development base of Sanya Harbin Engineering University Address before: 150001 Heilongjiang, Nangang District, Nantong street,, Harbin Engineering University, Department of Intellectual Property Office Patentee before: HARBIN ENGINEERING University |
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Granted publication date: 20141203 Termination date: 20201206 |