CN103335695B - A kind of weighing sensor being applicable to electronic balance - Google Patents
A kind of weighing sensor being applicable to electronic balance Download PDFInfo
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- CN103335695B CN103335695B CN201310239016.3A CN201310239016A CN103335695B CN 103335695 B CN103335695 B CN 103335695B CN 201310239016 A CN201310239016 A CN 201310239016A CN 103335695 B CN103335695 B CN 103335695B
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- 238000005303 weighing Methods 0.000 title claims abstract description 45
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 49
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- 238000001514 detection method Methods 0.000 claims description 6
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- 230000005622 photoelectricity Effects 0.000 description 9
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 7
- 229910052782 aluminium Inorganic materials 0.000 description 7
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Abstract
The present invention relates to a kind of high-precision weighing sensor with being applicable to electronic balance, a kind of weighing sensor being applicable to electronic balance, comprising: integrated elastic body, is characterized in that, described weighing sensor also comprises: equilibrium position regulating device; Temperature-sensing element; Magnet steel; Permanent magnet; Solenoid; Infraluminescence pipe; Photovoltaic cell module; Overshoot protection catch; Prop up heavy shell fragment; Balance on goods and services bearing column; Be fixedly connected with adjusting gear, the described adjusting gear that is fixedly connected with is for connecting integrated elastic body described in adjustment, temperature-sensing element, magnet steel, permanent magnet, solenoid, infraluminescence pipe, photovoltaic cell module, overshoot protection catch, heavy shell fragment, balance on goods and services bearing column.The high-precision weighing sensor globality being applicable to electronic balance provided by the invention is strong, rugged construction, sensor is all not fragile in transport and assembling process, and good looking appearance, thus can be able to be used widely at the weighing sensory field of electronic balance.
Description
Technical field
The present invention relates to a kind of weighing sensor, more particularly, relate to a kind of weighing sensor being applicable to electronic balance.
Background technology
Electromagnetic force equilibrium formula weighing sensor is the core building block of electronic balance, and the performance of quality on electronic balance of its quality has conclusive impact.At present, domestic electromagnetic force weighing sensor is based on traditional split forward type sensor, and its principle and technique at theoretic comparative maturity, but also exist following several respects problem in actual production and in using: volume is large, Heavy Weight.Though more rear-mounted sensor is small and exquisite many, with its sensor as electronic balance, be still difficult to the lightness realizing electronic balance, miniaturization; Complex structure, parts are various, very high to the requirement of assembler, and finished product consistance is poor, and batch production quality can not be guaranteed; Connect each parts of elastic body beryllium-bronze reed used and hang spring toxicity comparatively greatly, having impact to the health of contact personnel; Outward appearance integraty is poor, attractive in appearance not; Entirety is solid not, and in transportation, spoilage is high; Because above factor, make sensor holistic cost relatively high.
Along with the appearance of the universal various new material of full-automatic machining center, have the ability to abandon architomia forward type sensor, the integral sensor of invention elastic body integration, and miniaturization transformation has been carried out to its calutron part.Its objective is the miniaturization of the unification in order to realize electromagnetic force equilibrium formula weighing sensor performance, volume, fastness, the simplification of producing of structure and the economization of cost.
Summary of the invention
The technical problem to be solved in the present invention is, above-mentioned volume for prior art is large, Heavy Weight, complex structure, outward appearance integraty are poor, overall defect solid not, a kind of weighing sensor being applicable to electronic balance is provided, comprise: integrated elastic body, described weighing sensor also comprises:
Equilibrium position regulating device;
Temperature-sensing element;
Magnet steel;
Permanent magnet;
Solenoid;
Infraluminescence pipe;
Photovoltaic cell module;
Overshoot protection catch;
Prop up heavy shell fragment;
Balance on goods and services bearing column;
Be fixedly connected with adjusting gear, the described adjusting gear that is fixedly connected with is for connecting integrated elastic body described in adjustment, temperature-sensing element, magnet steel, permanent magnet, solenoid, infraluminescence pipe, photovoltaic cell module, overshoot protection catch, heavy shell fragment, balance on goods and services bearing column.
Further, described weighing apparatus apparatus for adjusting position comprises further: photoelectric support, soft magnetic bodies magnet steel cap, photoelectric support press down screw, photoelectric support lift screw.
Further; the described adjusting gear that is fixedly connected with comprises: position error adjustment screw; photoelectric support presses down screw; photoelectric support lift screw, soft magnetic bodies magnet steel cap holding screw, a heavy shell fragment holding screw; the fastening hexagon socket head cap screw of calutron; overshoot protection catch holding screw, coil holding screw, photovoltaic cell module holding screw.
Further, described photoelectric support lifts screw by photoelectric support, and photoelectric support presses down screw and is fixed in soft magnetic bodies magnet steel cap and arranges.
Further, described photovoltaic cell module holding screw is one.
Further, described position error adjusts screw, photoelectric support presses down screw, photoelectric support lift screw, the fastening hexagon socket head cap screw of calutron, overshoot protection catch holding screw, coil holding screw are two.
Further, a described heavy shell fragment holding screw is three.
Further, described soft magnetic bodies magnet steel cap holding screw is four.
Further, described integrated elastic body comprises: parallel girder, vertical beam, deformation amplify lever, reed, hang spring, angular difference adjustment arm, magnet steel erecting frame, solenoid erecting frame, Photoelectric Detection seam.
Further, the position error of described integrated elastic body is adjusted by the pillar of described position error adjustment screw, described integrated elastic body, a described heavy reed.
Crucial part of the present invention is the whole elastic body of sensor, comprise deformation amplify lever, all reeds and hang spring, the adjustment of spandrel girder, angular difference arm, magnet steel erecting frame, solenoid erecting frame, Photoelectric Detection seam etc., form through milling machine Cutter Body Processing with Machining Center with a monoblock aircraft aluminum, without any securing member between each functional part elastomeric.The present invention changes four machine milling aluminium matter reeds into used for conventional forward weighing sensor four beryllium-bronze single armed reeds, two both arms reeds in parallel change four machine milling aluminium matter reeds into, two fulcrums hang spring and change two machine milling aluminium matter fulcrums into and hang spring, a series connection Dual-arm crane spring changes pair of series both arms machine milling aluminium matter into and hangs spring, this hangs spring to series connection both arms machine milling aluminium matter is functionally in parallel, here the object resolving into two series connection Dual-arm crane springs is to take into account position error and tensile strength, be actually and be equivalent to have opened a vertical slot in the centre of former series connection Dual-arm crane spring and turn.
When another crucial part of the present invention is when sensor load-bearing or is subject to impacting, all springs that hangs all are in extended state.The tensile strength of aluminium apparently higher than crush resistance strength, and under nonideality, the transverse deformation produced when the transverse deformation produced during stretching will be far smaller than extruding.The transverse deformation hanging spring can produce creep and the angular difference of sensor, and transverse deformation can affect the anti-fatigue life hanging spring, is designed to the generation that extended state then can avoid problems.
As long as another crucial part of the present invention is that the precision of machining center is suitable, material deformation process is abundant, and after time processing is shaped, its position error is very little, and its correction position error is more convenient.Can position error be revised by adjusting two position error adjustment screws, also with file correction elastomeric strut or the object revising position error can be reached with file correction aluminium matter reed.
Another crucial part of the present invention is to use the strong magnetic of ultra low temperature coefficient as permanent magnet, and increases elastomeric lever amplification ratio, the volume of magnet steel and weight is all weighed not as good as architomia forward type and passes 1/4th of large device.
Another crucial part of the present invention is to adopt in built-in optical electric position governor motion.Built-in photoelectricity governor motion comprises a photoelectricity frame that can be positioned in soft magnetic bodies magnet steel cap, it is equipped with two silicon photocell and electroluminescent lamp.The upper-lower position of photoelectricity frame can pass through four adjusting screw up-down adjustment, to adjust the balance point position of sensor.
It is 40mm that another crucial part of the present invention is that a photoelectricity governor motion, solenoid, permanent magnet, soft magnetic bodies magnet steel, soft magnetic bodies magnet steel cap are combined in a diameter, within the right cylinder of height 35mm, and this right cylinder is inlaid in completely within integrated elastic body.Make the globality of sensor like this, aesthetic property strengthens greatly.
Another crucial part of the present invention is to transship the spacing square shaped gap formed by groove and the magnet steel cap of soft magnetic bodies magnet steel, and to carry out up and down to lever spacing, and overshoot protection catch coordinates and props up a weight shell fragment and can prevent excessive impact from causing damage to sensor.During normal weighing, lever is the spacing place that can not encounter magnet steel.When overload or when being subject to impacting, lever can encounter spacing place, elastomeric deformation is no longer strengthened, thus protection elastic body.And in fact, the elastic body of this kind of structure, even without carrying out spacing to lever, when a heavy shell fragment encounters overshoot protection catch, elastic body is also complete can be recovered in region completely in elasticity.All these measures, can greatly prevent sensor because of transport or improper use damage.
Another crucial part of the present invention is owing to have employed larger lever amplification multiple and the stronger permanent magnet of magnetic, drive current needed for solenoid is greatly reduced, the lower power consumption of the control panel of the electronic balance matched with it, thermal value are reduced.This not only lowers the component purchase cost of control panel, reduce the area of control panel, and temperature rise when can reduce the work of complete machine, reduce the temperature drift of electronic balance.
Another crucial part of the present invention is less demanding for processing mechanical apparatus of integrated elastic body.If screw thread is processed by tapping machine, then the minimum requirements of processing equipment is only high precision milling machine machining center and a non-interlock high precision right angle turntable of 2.5 axles of a band automatic tool changer function (tool magazine capacity minimum need seven handle).If use 3 axle machines and larger tool magazine capacity completely, then screw thread also time processing can be shaped, and profile smooth finish can be done very beautiful.Under the minimalist configuration of machinery, still can shape integrated elastic body clamped one time, considerably reduce personal error, what make product can carry out large-scale production, drastically increases labour productivity, and the consistance of product is greatly enhanced.
Implement the weighing sensor being applicable to electronic balance of the present invention, have following beneficial effect: globality is strong, rugged construction, sensor is all not fragile in transport and assembling process, and good looking appearance, thus can be able to be used widely at the weighing sensory field of electronic balance.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 is the assembling schematic diagram that the present invention is applicable to the weighing sensor of electronic balance;
Fig. 2 is the design sketch that the present invention is applicable to the weighing sensor of electronic balance;
Fig. 3 is the stereographic map of the integrated elastic body 1 of Fig. 1;
Fig. 4 is the photoelectricity frame 6 end face three-dimensional effect diagram of Fig. 1;
Fig. 5 is the three-dimensional effect diagram of photoelectricity frame 6 bottom surface of Fig. 1;
Fig. 6 is magnet steel 3 three-dimensional effect diagram of Fig. 1;
Fig. 7 is the magnet steel 3 rear three-dimensional effect diagram fit with permanent magnet 4 of Fig. 1.
Fig. 8 is the three-dimensional effect diagram of the soft magnetic bodies magnet steel cap 9 of Fig. 1;
Fig. 9 is the three-dimensional effect diagram after the soft magnetic bodies magnet steel 3 of Fig. 1, permanent magnet 4, soft magnetic bodies magnet steel cap 9 zoarium.
In the drawings, 1, integrated elastic body; 2, temperature-sensing element; 3, magnet steel; 4, permanent magnet; 5, solenoid; 6, photoelectric support; 7, infraluminescence pipe; 8, photovoltaic cell module; 9, soft magnetic bodies magnet steel cap; 10, overshoot protection catch; 11, heavy shell fragment is propped up; 12, balance on goods and services bearing column; 13, screw is adjusted; 14, photoelectric support presses down screw; 15, photoelectric support lift screw; 16, soft magnetic bodies magnet steel cap holding screw; 17, heavy shell fragment holding screw is propped up; 18, the fastening hexagon socket head cap screw of calutron; 19, overshoot protection catch holding screw; 20, coil holding screw; 21, photovoltaic cell module holding screw.
Embodiment
Refer to Fig. 1, for the present invention is applicable to the assembling schematic diagram of the weighing sensor of electronic balance.As shown in Figure 1, a kind of high-precision weighing sensor being applicable to electronic balance, its main part comprises integrated elastic body 1, temperature-sensing element 2, magnet steel 3, permanent magnet 4, solenoid 5, photoelectric support 6, infraluminescence pipe 7, photovoltaic cell module 8, soft magnetic bodies magnet steel cap 9, overshoot protection catch 10, a heavy shell fragment 11, balance on goods and services bearing column 12; The screw that is fixedly connected with and adjusts of each parts comprises two position error adjustment screws 13; two photoelectric supports press down screw 14; two photoelectric support lift screws 15; four soft magnetic bodies magnet steel cap holding screws 16; three the fastening hexagon socket head cap screw of heavy shell fragment holding screw 17, two calutrons 18, two overshoot protection catch holding screws 19; two coil holding screws, 20, photovoltaic cell module holding screw 21.Preferably, temperature-sensing element 2 selects high precision temperature-sensing element; Preferably, soft magnetic bodies magnet steel selected by magnet steel 3; Preferably, permanent magnet 4 selects low-temperature coefficient permanent magnet.Preferably, the weighing sensor that the present invention is applicable to electronic balance is connected with electronic balance control panel by eight core flat cables, comprises photovoltaic cell module output signal line two, infraluminescence pipe supply lines two, solenoid drive wire two, high precision temperature-sensing element signal wire two.
Incorporated by reference to consulting Fig. 2, be applicable to the design sketch of the weighing sensor of electronic balance for the present invention.
Incorporated by reference to consulting Fig. 3, be applicable to the stereographic map of the integrated elastic body 1 of the weighing sensor of electronic balance for the present invention.When this present invention is applicable to the weighing of the weighing sensor of electronic balance, balance on goods and services bearing column 12 is subject to downward power, after a heavy shell fragment 11 cushions, this power is passed to elastomeric spandrel girder 1-1.Due to the deformation that elastic body is cantilever beam type parallel girder structure, spandrel girder generation parallel-moving type, and weight-bearing surface still keeps level.This deformation, the power arm 1-4 of lever is passed to by pair of series Dual-arm crane spring 1-2, again through the amplification of lever, make to depart from former equilibrium position at the Photoelectric Detection finedraw 1-10 of resistance arm 1-5 end, the luminous flux that the infrared light Photoelectric Detection finedraw 1-10 launched by infraluminescence pipe 7 shines the infrared light of photovoltaic cell module changes, electronic balance control panel detects the change of this photosignal, export corresponding current signal to solenoid 5, impel Photoelectric Detection to stitch 1-10 and revert to original equilibrium position, drive lever and spandrel girder to revert to former equilibrium position simultaneously, complete weighing process.
Refer to Fig. 4, for the present invention is applicable to the photoelectricity frame 6 end face three-dimensional effect diagram of the weighing sensor of electronic balance.
Refer to Fig. 5, be applicable to the three-dimensional effect diagram of photoelectricity frame 6 bottom surface of the weighing sensor of electronic balance for Fig. 1 the present invention.
As shown in Figure 4 and Figure 5, luminotron mounting hole 6-1 in photoelectricity frame 6 is used for installation infrared luminotron, photoelectric support presses down screw hole 6-5 and photoelectric support lift screw hole 6-2 for installing photoelectric support secured adjusted screw, photoelectric cell line wire hole 6-3 and infraluminescence pipe wire hole 6-4 is used for walking lead-in wire, photovoltaic cell module locating slot 6-7 is for locating photovoltaic cell module, photovoltaic cell module fixed screw holes 6-8 is for installing photovoltaic cell module fixed screw, photoelectric cell anti-bumping rod 6-9 is used for sassafras when imitative only lever is subject to side direction external force and hinders photoelectric cell, photoelectric support locating surface 6-10 is total everywhere, for photoelectric support being positioned in soft magnetic bodies magnet steel cap, play the effect of horizontal location.Infraluminescence pipe seccotine is fixed in luminotron mounting hole 6-1, and photovoltaic cell module is first fixed in photovoltaic cell module locating slot 6-7 with seccotine, then tightens photovoltaic cell module fixed screw.
Refer to Fig. 6, Fig. 6 is soft magnetic bodies magnet steel 3 three-dimensional effect diagram that Fig. 1 the present invention is applicable to the weighing sensor of electronic balance.
Refer to Fig. 7, Fig. 7 is the soft magnetic bodies magnet steel 3 rear three-dimensional effect diagram fit with permanent magnet 4 that Fig. 1 the present invention is applicable to the weighing sensor of electronic balance.
Refer to Fig. 8, Fig. 8 is the three-dimensional effect diagram of the soft magnetic bodies magnet steel cap 9 of Fig. 1.
Refer to Fig. 9, Fig. 9 is the three-dimensional effect diagram after Fig. 1 the present invention is applicable to the soft magnetic bodies magnet steel 3 of the weighing sensor of electronic balance, permanent magnet 4, soft magnetic bodies magnet steel cap 9 zoarium.
As shown in Fig. 6, Fig. 7, Fig. 8, Fig. 9, there is a temperature-sensing element mounting hole 3-1 at the center of soft magnetic bodies magnet steel 3 bottom surface for installing high precision temperature sensing thermistors, 3-5 middle position, bottom surface seccotine bonds a cylindrical low-temperature coefficient strong permanent magnet 4, stopper slot 3-4 is for limiting the scope of activities of lever, magnet steel fixed orifice 3-2 for fixing soft magnetic bodies magnet steel on integrated elastic body, and mounting hole 3-3 for fixing magnet steel cap on magnet steel.Have an annulus gap between low-temperature coefficient strong permanent magnet 4 and soft magnetic bodies magnet steel 3, there is a stable static magnetic field air gap inside, and solenoid just moves in this magnetic gap.
The weighing sensor of electronic balance is applicable to by implementing the present invention, its beneficial effect is: globality is strong, rugged construction, and sensor is all not fragile in transport and assembling process, and good looking appearance, thus can be able to be used widely at the weighing sensory field of electronic balance.
The present invention is described according to specific embodiment, but it will be understood by those skilled in the art that when not departing from the scope of the invention, can carry out various change and equivalent replacement.In addition, for adapting to the specific occasion of the technology of the present invention, can many amendments be carried out to the present invention and not depart from its protection domain.Therefore, the present invention is not limited to specific embodiment disclosed herein, and comprises all embodiments dropping into claims.
Claims (8)
1. be applicable to a weighing sensor for electronic balance, comprise: integrated elastic body (1), is characterized in that, described weighing sensor also comprises: equilibrium position regulating device (0), temperature-sensing element (2), magnet steel (3), permanent magnet (4), solenoid (5), infraluminescence pipe (7), photovoltaic cell module (8), overshoot protection catch (10), prop up heavy shell fragment (11), balance on goods and services bearing column (12), be fixedly connected with adjusting gear (22), described is fixedly connected with adjusting gear (22) for connecting the integrated elastic body (1) described in adjustment, temperature-sensing element (2), magnet steel (3), permanent magnet (4), solenoid (5), infraluminescence pipe (7), photovoltaic cell module (8), overshoot protection catch (10), prop up heavy shell fragment (11), balance on goods and services bearing column (12), described equilibrium position regulating device (0) comprises further: photoelectric support (6), soft magnetic bodies magnet steel cap (9), photoelectric support presses down screw (14), photoelectric support lift screw (15), the described adjusting gear (22) that is fixedly connected with comprising: position error adjustment screw (13), photoelectric support presses down screw (14), photoelectric support lift screw (15), soft magnetic bodies magnet steel cap holding screw (16), prop up heavy shell fragment holding screw (17), the fastening hexagon socket head cap screw of calutron (18), overshoot protection catch holding screw (19), coil holding screw (20), photovoltaic cell module holding screw (21).
2. the weighing sensor being applicable to electronic balance according to claim 1, it is characterized in that, described photoelectric support (6) lifts screw (15) by photoelectric support, and photoelectric support presses down screw (14) and is fixed on setting in soft magnetic bodies magnet steel cap (9).
3. the weighing sensor being applicable to electronic balance according to claim 2, is characterized in that, described photovoltaic cell module holding screw (21) is one.
4. the weighing sensor being applicable to electronic balance according to claim 2; it is characterized in that, described position error adjustment screw (13), photoelectric support press down screw (14), photoelectric support lift screw (15), the fastening hexagon socket head cap screw of calutron (18), overshoot protection catch holding screw (19), coil holding screw (20) be two.
5. the weighing sensor being applicable to electronic balance according to claim 2, is characterized in that, described heavy shell fragment holding screw (17) is three.
6. the weighing sensor being applicable to electronic balance according to claim 3, is characterized in that, described soft magnetic bodies magnet steel cap holding screw (16) is four.
7. the weighing sensor being applicable to electronic balance according to any one of claim 1-6, it is characterized in that, described integrated elastic body (1) comprising: parallel girder, vertical beam, deformation amplify lever, shell fragment, hang spring, angular difference adjustment arm, magnet steel erecting frame, solenoid erecting frame, Photoelectric Detection seam.
8. the weighing sensor being applicable to electronic balance according to claim 7, is characterized in that the position error of described integrated elastic body (1) is adjusted by the pillar of described position error adjustment screw (13), described integrated elastic body (1), a described heavy shell fragment (11).
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103925982A (en) * | 2014-03-28 | 2014-07-16 | 沈阳龙腾电子有限公司 | Four-corner adjusting mechanism for sensor of electronic balance and electronic balance |
| CN105628912A (en) * | 2014-11-03 | 2016-06-01 | 天津市普瑞仪器有限公司 | Immune chromatographic analyzer |
| CN106197624B (en) * | 2015-05-26 | 2019-02-26 | 梅特勒-托利多仪器（上海）有限公司 | Weighing sensor and electronic balance |
| CN108955854A (en) * | 2018-07-19 | 2018-12-07 | 刘思颂 | A kind of balance Weighing apparatus and calibration method |
| CN111721657A (en) * | 2019-03-22 | 2020-09-29 | 北京恒久实验设备有限公司 | Array type magnetic core arrangement structure of analytical instrument |
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| JP3701856B2 (en) * | 2000-09-29 | 2005-10-05 | アンリツ産機システム株式会社 | electronic balance |
| CN201600175U (en) * | 2009-12-28 | 2010-10-06 | 上海高衡电子有限公司 | Electromagnetic sensor elastomer |
| CN202720032U (en) * | 2012-05-23 | 2013-02-06 | 余姚市新竹智控技术有限公司 | Measurement and control system of electromagnetic force balanced type electronic balance |
| CN203464985U (en) * | 2013-06-17 | 2014-03-05 | 余姚市新竹智控技术有限公司 | Weighing sensor suitable for electronic balances |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN88102671A (en) * | 1987-05-09 | 1988-12-14 | 株式会社岛津制作所 | Electronic scales |
| US4938301A (en) * | 1988-11-17 | 1990-07-03 | Sartorius Gmbh | Electronic balance with scale on top |
| JP3701856B2 (en) * | 2000-09-29 | 2005-10-05 | アンリツ産機システム株式会社 | electronic balance |
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