CN104089688A - Thin-wall blind-hole column type weighing sensor - Google Patents
Thin-wall blind-hole column type weighing sensor Download PDFInfo
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- CN104089688A CN104089688A CN201410360506.3A CN201410360506A CN104089688A CN 104089688 A CN104089688 A CN 104089688A CN 201410360506 A CN201410360506 A CN 201410360506A CN 104089688 A CN104089688 A CN 104089688A
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Abstract
The invention discloses a thin-wall blind-hole column type weighing sensor which structurally comprises an elastic body. A strain area of a thin-wall blind-hole structure is arranged on the elastic body, and a resistance strain gauge is pasted to the lateral part of the strain area; the middle of the elastic body is sleeved with a steel tube protective sleeve in a connected mode, and the steel tube protective sleeve is connected with the elastic body through a metal membrane; the lower portion of the elastic body is sleeved with an anti-rotating plate in a connected mode. Nonlinearity index adjustment is not needed in the manufacturing process of the sensor, and the manufacturing technology is simplified; the sensor is high in anti-eccentricity and anti-side-direction capacity; meanwhile, the bending moment sensitivity is reduced, and the time lag of a scale is easily reduced. The anti-rotation capacity of the sensor is further improved in the using process through the anti-rotating plate with an anti-rotating groove.
Description
Technical field
The present invention relates to a kind of LOAD CELLS, specifically a kind of thin-walled blind hole type column weighting sensor.
Background technology
Conventional column weighting sensor elastic body is generally designed to overall pole structure at present, and paster portion structure is generally cylinder, square column and cylindrical column etc.Because the own unintentional nonlinearity of sensor that adopts pole structure elastic body to make is larger, for improving the precision index of product, in sensor production process, generally to paste linear compensation resistance at elastomeric corresponding site, and need in sensor production test process, test compensation to product nonlinear indicator, manufacture craft is more loaded down with trivial details.Because elastic body is pole structure, sensor easily produces flexural deformation in the time of the larger load of load-bearing simultaneously, causes the output signal appearance of sensor inconsistent, when dress scale uses, easily occurs a section poor phenomenon.
In general sensor production process, its strainometer resistance of selecting is 350 Ω or 700 Ω, and 120 Ω also have, and strainometer resistance is lower, and its power consumption is larger, and is not easy to instrument coupling.Sensor is in the time of design, consider the anti-rotating function after sensor group scale, the anti-rotation structure pattern of column type sensor is a lot of at present, common are: single pin anti-rotation, double-pin anti-rotation, anti-rotation groove anti-rotation etc., but respectively there are relative merits, as: single pin or double-pin anti-rotation, this structure is on stressed larger weighing apparatus, carrier is out of shape in large situation, very easily destroys stop pin or anti-turn screw.Adopt anti-rotation groove anti-rotation, under unusual condition, sensor elastomer and web member are easily damaged, and then affect the metering performance of system.
Summary of the invention
The object of the present invention is to provide a kind of thin-walled blind hole type column weighting sensor, this sensor does not need to carry out nonlinear indicator adjustment in manufacturing process, has simplified manufacture craft; The anti-bias of sensor, anti-side direction ability are strong, have reduced the susceptibility of moment of flexure simultaneously, and the section that is conducive to reduce scale is poor.Torsional stop with anti-rotation groove has further improved sensor anti-rotation ability in use.
The present invention solves the technical scheme that its technical matters takes: a kind of thin-walled blind hole type column weighting sensor, and its structure comprises elastic body, and described elastic body is provided with the strain regions of thin-walled blind hole structure, and described strain regions sidepiece is pasted with strain ga(u)ge; Described elastic body middle part is socketed with steel tube dirt-proof boot, and described steel tube dirt-proof boot is connected with elastic body by metallic membrane; Described elastic body bottom is socketed with torsional stop.
Further, described metallic membrane comprises upper diaphragm and lower diaphragm, described upper diaphragm one end and elastic body laser bonding, the upper end laser bonding of the other end and steel tube dirt-proof boot, described lower diaphragm one end and elastic body laser bonding, the lower end laser bonding of the other end and steel tube dirt-proof boot, described steel tube dirt-proof boot madial wall does not contact with elastomeric lateral wall.
Further, described elastic body middle part is provided with two symmetrical blind holes, and strain ga(u)ge sticks on the maximum position of strain regions strain of two symmetrical blind hole base plane.
Further, described torsional stop and elastic body laser bonding, be provided with anti-rotation groove in one end of torsional stop.
Further, described resistance-strain is counted the large resistance biaxial strain of 1000 Ω meter.
Further, described elastomeric upper surface and lower surface is sphere.
The invention has the beneficial effects as follows:
1, this sensor has improved machining precision and the processing consistance of each part, and then has improved precision index and the stability of sensor, and is convenient to mass production.And transducer range scope is large, from 30t～50t, accuracy class is high, can be used in and make large-tonnage high precision truck scale, track scale etc.
2, the steel tube dirt-proof boot of this LOAD CELLS and upper diaphragm, lower diaphragm are by laser bonding, and torsional stop and elastic body, also by laser bonding, have improved the protective of product.
3, the strain ga(u)ge of pasting in this LOAD CELLS is the large resistance biaxial strain of the 1000 Ω meter adopting, and strainometer resistance is high, and it is low in energy consumption, and is convenient to instrument coupling.
3, in sensor production process, do not need to carry out nonlinear indicator adjustment, simplified manufacture craft; The anti-bias of sensor, anti-side direction ability are strong, have reduced the susceptibility of moment of flexure simultaneously, and the section that is conducive to reduce scale is poor.The design of trough of belt torsional stop has further improved sensor anti-rotation ability in use.
Brief description of the drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the be hit by a bullet structural representation of gonosome of Fig. 1;
Fig. 4 is the left view of Fig. 3;
Fig. 5 is the vertical view of torsional stop in Fig. 1;
Fig. 6 is the structural representation of strain ga(u)ge in the present invention.
In figure: 1 elastic body, 2 strain ga(u)ges, 3 upper diaphragms, 4, lower diaphragm, 5 steel tube dirt-proof boots, 6 torsional stops, 61 anti-rotation grooves, 7 blind holes.
Embodiment
With reference to Figure of description, a kind of thin-walled blind hole type column weighting sensor of the present invention is described in detail below.
As shown in Figure 1 and Figure 2, a kind of thin-walled blind hole type column weighting sensor of the present invention, its structure comprises elastic body 1, upper surface and the lower surface of described elastic body 1 are sphere.Described elastic body 1 is provided with the strain regions of thin-walled blind hole 7 structures, and described strain regions sidepiece is pasted with strain ga(u)ge 2; Described elastic body 1 middle part is socketed with steel tube dirt-proof boot 5, and described steel tube dirt-proof boot 5 is connected with elastic body 1 by metallic membrane; Described elastic body 1 bottom is socketed with torsional stop 6.
Described metallic membrane comprises upper diaphragm 3 and lower diaphragm 4, described upper diaphragm 3 one end and elastic body 1 laser bonding, the upper end laser bonding of the other end and steel tube dirt-proof boot 5, described lower diaphragm 4 one end and elastic body 1 laser bonding, the lower end laser bonding of the other end and steel tube dirt-proof boot 5, described steel tube dirt-proof boot 5 madial walls do not contact with the lateral wall of elastic body 1.
As shown in Figure 2, Figure 3, Figure 4, described elastic body 1 middle part is provided with two symmetrical blind holes 7, and strain ga(u)ge 2 sticks on the maximum position of strain regions strain of two symmetrical blind hole 7 base plane.
As shown in Figure 5, described torsional stop 6 and elastic body 1 laser bonding, be provided with anti-rotation groove 61 in one end of torsional stop 6.Anti-rotation groove 61 is for assembling with the stop pin being arranged on base.
As shown in Figure 6, described strain ga(u)ge 2 is the large resistance biaxial strain of 1000 Ω meter.Strainometer resistance is high, and it is low in energy consumption, and is convenient to instrument coupling.
Press shown in Fig. 1, adopt the proprietary manufacturing technology of sensor strain ga(u)ge 2 to be sticked on to the thin-walled blind hole 7 maximum strain districts, bottom of elastic body 1, and processing and fabricating sensor, the welding of upper and lower diaphragm and steel tube dirt-proof boot, upper and lower diaphragm and elastic body, torsional stop and elastic body 1 adopts respectively laser-beam welding machine to complete.Improve the protective of product.
After completing, sensor production detects on high precision force measuring machine.
By this working of an invention, improve machining precision and the processing consistance of this thin-walled blind hole type LOAD CELLS and each part, and then improved precision index and the stability of sensor, and be convenient to mass production.In this invention LOAD CELLS manufacturing process, adopt laser welding technology, product barrier propterty excellence simultaneously.
This invention transducer range scope is large, and from 30t～50t, accuracy class is high, can be used in and make large-tonnage high precision truck scale, track scale etc.
In sensor production process, do not need to carry out nonlinear indicator adjustment, simplified manufacture craft; The anti-bias of sensor, anti-side direction ability are strong, have reduced the susceptibility of moment of flexure simultaneously, and the section that is conducive to reduce scale is poor.The design of trough of belt torsional stop has further improved sensor anti-rotation ability in use.
The above, principles more of the present invention just explain through diagrams, this instructions is not that in concrete structure and the scope of application described shown in the present invention will being confined to, therefore the corresponding modify being likely utilized every and equivalent, all belong to the scope of the claims that the present invention applies for.
Except technical characterictic described in instructions, all the other technical characterictics are those skilled in the art's known technology.
Claims (6)
1. a thin-walled blind hole type column weighting sensor, comprises elastic body, it is characterized in that, described elastic body is provided with the strain regions of thin-walled blind hole structure, and described strain regions sidepiece is pasted with strain ga(u)ge; Described elastic body middle part is socketed with steel tube dirt-proof boot, and described steel tube dirt-proof boot is connected with elastic body by metallic membrane; Described elastic body bottom is socketed with torsional stop.
2. a kind of thin-walled blind hole type column weighting sensor according to claim 1, it is characterized in that, described metallic membrane comprises upper diaphragm and lower diaphragm, described upper diaphragm one end and elastic body laser bonding, the upper end laser bonding of the other end and steel tube dirt-proof boot, described lower diaphragm one end and elastic body laser bonding, the lower end laser bonding of the other end and steel tube dirt-proof boot, described steel tube dirt-proof boot madial wall does not contact with elastomeric lateral wall.
3. a kind of thin-walled blind hole type column weighting sensor according to claim 1, is characterized in that, described elastic body middle part is provided with two symmetrical blind holes, and strain ga(u)ge sticks on the maximum position of strain regions strain of two symmetrical blind hole base plane.
4. a kind of thin-walled blind hole type column weighting sensor according to claim 1, is characterized in that, described torsional stop and elastic body laser bonding, be provided with anti-rotation groove in one end of torsional stop.
5. a kind of thin-walled blind hole type column weighting sensor according to claim 1, is characterized in that, described resistance-strain is counted the large resistance biaxial strain of 1000 Ω meter.
6. a kind of thin-walled blind hole type column weighting sensor according to claim 1, is characterized in that, described elastomeric upper surface and lower surface are sphere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410360506.3A CN104089688A (en) | 2014-07-25 | 2014-07-25 | Thin-wall blind-hole column type weighing sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410360506.3A CN104089688A (en) | 2014-07-25 | 2014-07-25 | Thin-wall blind-hole column type weighing sensor |
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| Publication Number | Publication Date |
|---|---|
| CN104089688A true CN104089688A (en) | 2014-10-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410360506.3A Pending CN104089688A (en) | 2014-07-25 | 2014-07-25 | Thin-wall blind-hole column type weighing sensor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111412967A (en) * | 2019-11-21 | 2020-07-14 | 宁波柯力传感科技股份有限公司 | Five-column type weighing sensor |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5734110A (en) * | 1996-10-11 | 1998-03-31 | Kistler-Morse Corporation | Temperature compensated, easily installed bolt-on strain sensor |
| CN1746635A (en) * | 2005-10-14 | 2006-03-15 | 常熟市百灵天平仪器有限公司 | Resistance strained sensor with protector |
| CN201837447U (en) * | 2010-11-03 | 2011-05-18 | 査氏电子实业（深圳）有限公司 | Elastic body of weighing sensor |
| CN203551068U (en) * | 2013-10-28 | 2014-04-16 | 东莞市华兰海电子有限公司 | Column-type weighing sensor |
| CN103808395A (en) * | 2012-11-09 | 2014-05-21 | 西安金和光学科技有限公司 | High temperature resistance large load fiber sensing device |
| CN204085647U (en) * | 2014-07-25 | 2015-01-07 | 济南金钟电子衡器股份有限公司 | A kind of thin-walled blind hole type column weighting sensor |
-
2014
- 2014-07-25 CN CN201410360506.3A patent/CN104089688A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5734110A (en) * | 1996-10-11 | 1998-03-31 | Kistler-Morse Corporation | Temperature compensated, easily installed bolt-on strain sensor |
| CN1746635A (en) * | 2005-10-14 | 2006-03-15 | 常熟市百灵天平仪器有限公司 | Resistance strained sensor with protector |
| CN201837447U (en) * | 2010-11-03 | 2011-05-18 | 査氏电子实业（深圳）有限公司 | Elastic body of weighing sensor |
| CN103808395A (en) * | 2012-11-09 | 2014-05-21 | 西安金和光学科技有限公司 | High temperature resistance large load fiber sensing device |
| CN203551068U (en) * | 2013-10-28 | 2014-04-16 | 东莞市华兰海电子有限公司 | Column-type weighing sensor |
| CN204085647U (en) * | 2014-07-25 | 2015-01-07 | 济南金钟电子衡器股份有限公司 | A kind of thin-walled blind hole type column weighting sensor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111412967A (en) * | 2019-11-21 | 2020-07-14 | 宁波柯力传感科技股份有限公司 | Five-column type weighing sensor |
| CN111412967B (en) * | 2019-11-21 | 2021-07-30 | 宁波柯力传感科技股份有限公司 | Five-column type weighing sensor |
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Application publication date: 20141008 |