CN102636239B - Disc base plate type weighing sensor - Google Patents
Disc base plate type weighing sensor Download PDFInfo
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- CN102636239B CN102636239B CN201110211294.9A CN201110211294A CN102636239B CN 102636239 B CN102636239 B CN 102636239B CN 201110211294 A CN201110211294 A CN 201110211294A CN 102636239 B CN102636239 B CN 102636239B
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- elastic body
- weighing sensor
- foil gauge
- ring
- type weighing
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Abstract
The invention relates to a weighing sensor, in particular to a disc base plate type weighing sensor, which aims to overcome the shortcoming that an existing weighing sensor is easy to cause loading point repeatability errors during loading, and resolves the technical difficult problem that metering repeatability errors are easy to be caused during supporting due to stress excursion. The disc base plate type weighing sensor can avoid problems of loading point repeatability errors during loading and metering repeatability errors due to stress excursion during supporting, and comprises an elastic body, a strain gauge and a cable. The elastic body is ring-shaped, a bearing portion is arranged surrounding an inner ring on the upper end surface of the elastic body, the section of the upper end surface of the bearing portion is arc-shaped, the strain gauge is attached to the lower end surface of the elastic body, a supporting portion is arranged at the edge of an outer ring on the lower end surface of the elastic body, the lower end surface of the supporting portion is in the shape of a ring surface with a tapered bottom corner, and the cable is connected with the strain gauge via a data line.
Description
Technical field
The present invention relates to a kind of LOAD CELLS, more specifically to the disc pad type weighing sensor in a kind of container crane weighing system.
Background technology
In the international logistics competition of a new round, along with world's forwarding business is to maximizing and large development trend, five Port groups of China are being faced with new opportunity to develop and are improving and improve.Port complex, outside the transportation function of performance loading and unloading container ship cargo, also, by participating in tissue and each logistics link business activity and being connected and coordination each other, progressively becomes the Logistic Base in global international trade and transportation system.Global electronic data exchange system etc. is the new and high technology of representative, will become the Main Means of modern port management, and the competition and cooperation pattern of port logistics will present diversification all over the world.Because all import and export containers all need to have enough to meet the need through container wharf, and use harbour container in tire type crane to lift to be in this circular flow must be through link.If can carry out accurate Weighing to container in this hoisting process, can realize the supervision of all Container Weights and statistics.In whole container crane weighing system, LOAD CELLS is an important ingredient.
China Patent Publication No. is CN101078645A, pass LOAD CELLS centered by the denomination of invention that open day is on November 28th, 2007, and the deformable body of foregoing invention comprises three distortion posts of top heavy burden introduction part, heavy burden support portion, bottom and center section.The inner peripheral surface of every distortion post and outer circumference surface apply direction along heavy burden and attach respectively three piece of first foil gauge, and the lateral vertical of every distortion post is born a heavy burden and applied two piece of second foil gauge of direction attaching.At the end face of top heavy burden introduction part and the bottom surface of heavy burden support portion, bottom, there are respectively three convex surfaces.Although form bridge circuit by these first foil gauges and the second foil gauge, significantly subdue nonlinearity erron, improve measure non-linear, and convex surface has played the effect that deflection is born a heavy burden that applies, but the problem of load(ing) point reproducibility error easily appears in convex surface when bearing a heavy burden, when supporting, there is the problem of the metering reproducibility error that causes due to stressed skew.
Chinese patent notification number is CN2588337Y, the day for announcing is that the utility model name on November 26th, 2003 is called a kind of LOAD CELLS, between loading end and the upper annular strain face around loading end setting, be provided with U-lag in recessed annular, upper annular strain basifacial is provided with the lower U shape groove of annular, loading end bottom is provided with blind hole, between blind hole and lower U shape groove, it is lower annular strain face, lower sidewall from from upper annular strain face outer shroud to downward-extension forms annular support, on, on lower annular strain face, be pasted with respectively tangential foil gauge, although above-mentioned utility model precision is high, good stability, but also there is the problem that easily occurs load(ing) point reproducibility error in this loading end, the loading end of projection need to carry whole pressure simultaneously, stable not when carrying, and above-mentioned utility model complicated integral structure, processing is installed inconvenient.
Summary of the invention
The object of the invention is to overcome existing LOAD CELLS and when load, easily occur the problem of load(ing) point reproducibility error, the technical barrier that occurs the problem of the metering reproducibility error that causes due to stressed skew when supporting, a kind of problem that there will not be load(ing) point reproducibility error when load is provided, when supporting, also there will not be the disc pad type weighing sensor of the problem of the metering reproducibility error causing due to stressed skew.
The present invention solves by following technical proposals, a kind of disc pad type weighing sensor, comprise elastic body, foil gauge and cable, described elastic body is circular, inner ring around elastic body upper surface is provided with supporting part, the cross section of described supporting part upper surface is circular-arc, described foil gauge is attached at elastomeric lower surface, the edge of described outer ring, elastic body lower surface is provided with support portion, the lower surface of described support portion is base angle tapering anchor ring shape, and described cable is connected with foil gauge by data line.It is circular that elastic body is, supporting part is around elastic body upper surface inner ring simultaneously, strengthened the load-bearing capacity of supporting part, improved stability, the cross section of supporting part upper surface is circular-arc simultaneously, when carrying, load(ing) point only has the peak of circular arc, well solved the problem that easily occurs load(ing) point reproducibility error when load, edge, outer ring, elastic body lower surface is made with support portion, and lower surface, support portion is base angle tapering anchor ring shape, herein will be as elastomeric support place, even when stressed generation skew, the elastomeric strong point still can not change, also well solved the problem of the metering reproducibility error causing due to stressed skew occurring when supporting.
As preferably, described elastic body upper surface is provided with ring-shaped depression, and described ring-shaped depression is corresponding up and down with foil gauge.The pressure of foil gauge by induction elastic body transmission detects, and the pressure that foil gauge is subject to is how many relevant with elastomeric deformability, ring-shaped depression contributes to improve elastomeric deformability, the deformability at foil gauge place particularly, thus improve weighing precision.
As preferably, described elastomeric lower end is provided with position-limiting tube, and the internal diameter of described position-limiting tube is identical with elastomeric internal diameter, and the external diameter of described position-limiting tube is less than elastomeric external diameter, and the central shaft of described position-limiting tube overlaps with elastomeric central shaft.By position-limiting tube, LOAD CELLS can be connected in container crane weighing system, play spacing effect simultaneously, avoid being moved when stressed.
As preferably, described elastic body lower surface is provided with 16 of blind holes, and 16 blind holes are uniformly distributed around elastomeric central shaft, and are all pasted with foil gauge in each blind hole.The foil gauge being attached in blind hole equally also has 16, and 16 foil gauges detect simultaneously and improved weighing precision.
As preferably, described elastomeric sidewall is provided with opening, and described opening inner side is provided with passage, and described passage communicates with foil gauge, and described elastic body upper end is provided with through hole, and described through hole communicates with opening, and described cable is connected to through hole.Data line is installed in passage, by data line, cable is connected with foil gauge, cable is connected with outside by through hole simultaneously, and one-piece construction is simple, easy to process.
As preferably, described blind hole covering is stamped cover plate.The middle foil gauge of protection blind hole, avoids foil gauge work to be subject to ectocine.
Therefore, a kind of disc pad type weighing sensor of the present invention possesses following beneficial effect, 1, simple in structure, process easy for installation, 2, by the designed arc-shaped appearance of supporting part upper surface, well solved the problem that easily occurs load(ing) point reproducibility error when load, the base angle tapering anchor ring by elastic body bottom supporting portion designs simultaneously, has also well solved the problem of the metering reproducibility error causing due to stressed skew occurring when supporting.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention,
Fig. 2 is a kind of cut-open view of Fig. 1,
Fig. 3 is a kind of partial sectional view of Fig. 1.
1-elastic body, 2-foil gauge, 3-cable, 4-supporting part, 5-ring-shaped depression, 6-blind hole, 7-cover plate, 8-support portion, 9-opening, 10-passage, 11-through hole, 12-position-limiting tube.
Specific embodiment
Below by embodiment, and by reference to the accompanying drawings, the present invention is further explained.
Embodiment: as shown in Figure 1 and Figure 2, a kind of disc pad type weighing sensor, comprise elastic body 1, foil gauge 2 and cable 3, elastic body 1 is circular, around elastic body 1 upper surface inner ring, be made with supporting part 4, the cross section of the upper surface of supporting part 4 is circular-arc, makes supporting part 4 load(ing) point when load unique, can load(ing) point be changed because of mobile, and then occur the problem of load(ing) point reproducibility error.In the lower surface of elastic body 1, have blind hole 6, and blind hole 6 is positioned at the inner ring of elastic body 1 and the middle of outer ring, blind hole 6 one has 16, 16 blind holes 6 are uniformly distributed around the central shaft of elastic body 1, at the interior foil gauge 2 that is all pasted with of blind hole 6, at blind hole 6 coverings, be stamped cover plate 7, play the effect of protection foil gauge 2, avoid extraneous interference, in the upper surface of elastic body 1, have ring-shaped depression 5, ring-shaped depression 5 is corresponding up and down with the position of foil gauge 2, because ring-shaped depression 5 has reduced the thickness of elastic body 1, so deformability herein strengthens when elastic body 1 is stressed, improved weighing precision.Edge in elastic body 1 outer ring, lower surface is made with support portion 8, the cross section of support portion 8 is base angle tapering anchor ring shape, herein using support place as elastic body 1, even when stressed generation skew, the strong point of elastic body 1 still can not change, and then there will not be the problem of the metering reproducibility error causing due to stressed skew.Lower end at elastic body 1 is also made with position-limiting tube 12, the internal diameter of position-limiting tube 12 is identical with the internal diameter of elastic body 1, the external diameter of position-limiting tube 12 is less than the external diameter of elastic body 1, the central shaft of position-limiting tube 12 overlaps with the central shaft of elastic body 1, by position-limiting tube 12, LOAD CELLS can be connected in container crane weighing system, play spacing effect simultaneously, avoid being moved when stressed.On the sidewall of elastic body 1, have opening 9, opening 9 inner sides are manufactured with two path 10s (as shown in Figure 3), path 10 communicates with foil gauge 2, in elastic body 1 upper end, have through hole 11, through hole 11 communicates with opening 9, and data line is installed in path 10, by data line, cable 3 is connected with foil gauge 2, cable 3 is connected with outside by through hole 11 simultaneously, and one-piece construction is simple, easy to process.
Elastic body 1 is circular, supporting part 4 is around elastic body 1 upper surface inner ring simultaneously, strengthened the load-bearing capacity of supporting part 4, improved stability, supporting part 4 upper surfaces are circular-arc simultaneously, when carrying, load(ing) point only has the peak of circular arc, well solved the problem that easily occurs load(ing) point reproducibility error when load, the edge of elastic body 1 outer ring, lower surface is made with support portion 8, and support portion 8 is base angle tapering anchor ring shape, herein using support place as elastic body 1, even when stressed generation skew, the strong point of elastic body 1 still can not change, also well solved the problem of the metering reproducibility error causing due to stressed skew occurring when supporting.
Claims (4)
1. a disc pad type weighing sensor, comprise elastic body (1), foil gauge (2) and cable (3), it is characterized in that, described elastic body (1) is circular, inner ring around elastic body (1) upper surface is provided with supporting part (4), the cross section of described supporting part (4) upper surface is circular-arc, described foil gauge (2) is attached at the lower surface of elastic body (1), the edge of described elastic body (1) outer ring, lower surface is provided with support portion (8), the lower surface of described support portion (8) is base angle tapering anchor ring shape, described cable (3) is connected with foil gauge (2) by data line, the lower end of described elastic body (1) is provided with position-limiting tube (12), the internal diameter of described position-limiting tube (12) is identical with the internal diameter of elastic body (1), the external diameter of described position-limiting tube (12) is less than the external diameter of elastic body (1), the central shaft of described position-limiting tube (12) overlaps with the central shaft of elastic body (1), described elastic body (1) lower surface is provided with (6) 16 of blind holes, 16 blind holes (6) are uniformly distributed around the central shaft of elastic body (1), and in each blind hole (6), be all pasted with foil gauge (2).
2. disc pad type weighing sensor according to claim 1, is characterized in that, described elastic body (1) upper surface is provided with ring-shaped depression (5), and described ring-shaped depression (5) is corresponding up and down with foil gauge (2).
3. disc pad type weighing sensor according to claim 1 and 2, it is characterized in that, the sidewall of described elastic body (1) is provided with opening (9), described opening (9) inner side is provided with passage (10), described passage (10) communicates with foil gauge (2), described elastic body (1) upper end is provided with through hole (11), and described through hole (11) communicates with opening (9), and described cable (3) is connected to through hole (11).
4. disc pad type weighing sensor according to claim 1, is characterized in that, described blind hole (6) covering is stamped cover plate (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110211294.9A CN102636239B (en) | 2011-07-27 | 2011-07-27 | Disc base plate type weighing sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110211294.9A CN102636239B (en) | 2011-07-27 | 2011-07-27 | Disc base plate type weighing sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102636239A CN102636239A (en) | 2012-08-15 |
| CN102636239B true CN102636239B (en) | 2014-09-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110211294.9A Expired - Fee Related CN102636239B (en) | 2011-07-27 | 2011-07-27 | Disc base plate type weighing sensor |
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| Country | Link |
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| CN (1) | CN102636239B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108433703B (en) * | 2018-04-10 | 2023-09-15 | 西安维塑智能科技有限公司 | Three-dimensional human body scanning equipment |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW295622B (en) * | 1994-10-28 | 1997-01-11 | Komatsu Mfg Co Ltd | |
| DE19960786A1 (en) * | 1999-12-16 | 2001-06-21 | Schenck Process Gmbh | Radial force sensor for crane load or level detection, has flexible ring with resistance strain gauge arranged between force conducting elements and force sensing elements |
| CN2588337Y (en) * | 2002-12-30 | 2003-11-26 | 南海市南方衡器制造有限公司 | Weighing sensor |
| CN101078645A (en) * | 2006-05-25 | 2007-11-28 | 株式会社共和电业 | Center hole type weighing cell |
| CN201273837Y (en) * | 2008-09-10 | 2009-07-15 | 中航电测仪器股份有限公司 | High precision wheel spoke type sensor |
| CN201622102U (en) * | 2010-02-10 | 2010-11-03 | 梅特勒-托利多(常州)精密仪器有限公司 | Novel low spoke sensor |
| CN201637467U (en) * | 2010-01-06 | 2010-11-17 | 宁波博达电气有限公司 | Weight sensor |
| CN202177436U (en) * | 2011-07-27 | 2012-03-28 | 宁波博达电气有限公司 | Disc pad type weighing sensor |
-
2011
- 2011-07-27 CN CN201110211294.9A patent/CN102636239B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW295622B (en) * | 1994-10-28 | 1997-01-11 | Komatsu Mfg Co Ltd | |
| DE19960786A1 (en) * | 1999-12-16 | 2001-06-21 | Schenck Process Gmbh | Radial force sensor for crane load or level detection, has flexible ring with resistance strain gauge arranged between force conducting elements and force sensing elements |
| CN2588337Y (en) * | 2002-12-30 | 2003-11-26 | 南海市南方衡器制造有限公司 | Weighing sensor |
| CN101078645A (en) * | 2006-05-25 | 2007-11-28 | 株式会社共和电业 | Center hole type weighing cell |
| CN201273837Y (en) * | 2008-09-10 | 2009-07-15 | 中航电测仪器股份有限公司 | High precision wheel spoke type sensor |
| CN201637467U (en) * | 2010-01-06 | 2010-11-17 | 宁波博达电气有限公司 | Weight sensor |
| CN201622102U (en) * | 2010-02-10 | 2010-11-03 | 梅特勒-托利多(常州)精密仪器有限公司 | Novel low spoke sensor |
| CN202177436U (en) * | 2011-07-27 | 2012-03-28 | 宁波博达电气有限公司 | Disc pad type weighing sensor |
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| Publication number | Publication date |
|---|---|
| CN102636239A (en) | 2012-08-15 |
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140903 Termination date: 20160727 |