CN204085647U - A kind of thin-walled blind hole type column weighting sensor - Google Patents
A kind of thin-walled blind hole type column weighting sensor Download PDFInfo
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- CN204085647U CN204085647U CN201420416484.3U CN201420416484U CN204085647U CN 204085647 U CN204085647 U CN 204085647U CN 201420416484 U CN201420416484 U CN 201420416484U CN 204085647 U CN204085647 U CN 204085647U
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- elastic body
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- blind hole
- strain
- type column
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 20
- 239000010959 steel Substances 0.000 claims abstract description 20
- 239000012528 membrane Substances 0.000 claims abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 17
- 238000005516 engineering process Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 229920001971 elastomer Polymers 0.000 description 2
- 239000000806 elastomer Substances 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
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- Measurement Of Force In General (AREA)
Abstract
The utility model discloses a kind of thin-walled blind hole type column weighting sensor, 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; Be socketed with steel tube dirt-proof boot in the middle part of described elastic body, described steel tube dirt-proof boot is connected with elastic body by metallic membrane; Described elastic body bottom is socketed with torsional stop.This sensor does not need to carry out nonlinear indicator adjustment in manufacturing process, simplifies manufacture craft; The anti-bias of sensor, anti-side are strong to ability, reduce the susceptibility of moment of flexure simultaneously, and the section being conducive to reducing scale is poor.Torsional stop with anti-rotation groove further increases sensor anti-rotation ability in use.
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
Column weighting sensor elastic body conventional at present is generally designed to overall pole structure, and patch sites structure is generally cylinder, square column and cylindrical column etc.The sensor made owing to adopting pole structure elastic body inherently non-linear larger, for improving the precision index of product, in sensor production process, generally to paste linear compensation resistance at elastomeric corresponding site, and in sensor production test process, test compensation need be carried out to product nonlinear indicator, manufacture craft is more loaded down with trivial details.Simultaneously because elastic body is pole structure, sensor easily produces flexural deformation when the larger load of load-bearing, causes the output signal of sensor to occur inconsistent, when dress scale uses, and the easily section of appearance difference phenomenon.
The strainometer resistance that in general sensor production process, it is selected 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 when designing, consider the anti-rotating function after sensor group scale, the anti-rotation structure pattern of current column type sensor is a lot, common are: singly sell 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, when carrier is out of shape large, very easily destroy stop pin or anti-turn screw.Adopt anti-rotation groove anti-rotation, in an abnormal situation, sensor elastomer and web member are easily damaged, and then the metering performance of influential 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, simplifies manufacture craft; The anti-bias of sensor, anti-side are strong to ability, reduce the susceptibility of moment of flexure simultaneously, and the section being conducive to reducing scale is poor.Torsional stop with anti-rotation groove further increases 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; Be socketed with steel tube dirt-proof boot in the middle part of described elastic body, 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, be provided with two symmetrical blind holes in the middle part of described elastic body, the strain regions that strain ga(u)ge is pasted onto two symmetrical blind via bottom planes strains maximum position.
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 counts 1000 Ω large resistance biaxial strain meter.
Further, described elastomeric upper surface and lower surface are sphere.
The invention has the beneficial effects as follows:
1, this sensor improves machining precision and the processing consistance of each part, and then improves 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 pass through laser bonding, improve the protective of product.
3, the strain ga(u)ge this LOAD CELLS pasted is the 1000 Ω large resistance biaxial strain meter adopted, and strainometer resistance is high, and it is low in energy consumption, and is convenient to instrument coupling.
3, do not need in sensor production process to carry out nonlinear indicator adjustment, simplify manufacture craft; The anti-bias of sensor, anti-side are strong to ability, reduce the susceptibility of moment of flexure simultaneously, and the section being conducive to reducing scale is poor.The design of trough of belt torsional stop further increases sensor anti-rotation ability in use.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the structural representation of Fig. 1 elastomer;
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, and 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 structure, and described strain regions sidepiece is pasted with strain ga(u)ge 2; Be socketed with steel tube dirt-proof boot 5 in the middle part of described elastic body 1, 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 wall does not contact with the lateral wall of elastic body 1.
As shown in Figure 2, Figure 3, Figure 4, be provided with two symmetrical blind holes 7 in the middle part of described elastic body 1, the strain regions that strain ga(u)ge 2 is pasted onto two symmetrical blind hole 7 base plane strains maximum position.
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 be arranged on base.
As shown in Figure 6, described strain ga(u)ge 2 is 1000 Ω large resistance biaxial strain meter.Strainometer resistance is high, and it is low in energy consumption, and is convenient to instrument coupling.
Shown in Fig. 1, maximum strain district bottom the thin-walled blind hole 7 adopting sensor proprietary manufacturing technology strain ga(u)ge 2 to be pasted onto elastic body 1, and processing and fabricating sensor, upper and lower diaphragm respectively adopts laser-beam welding machine to complete with elastic body, torsional stop with welding of elastic body 1 with steel tube dirt-proof boot, upper and lower diaphragm.Improve the protective of product.
Detect on high precision force measuring machine after sensor production completes.
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 improve precision index and the stability of sensor, and be convenient to mass production.Adopt laser welding technology in this invention LOAD CELLS manufacturing process, product barrier propterty is excellent 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.
Do not need in sensor production process to carry out nonlinear indicator adjustment, simplify manufacture craft; The anti-bias of sensor, anti-side are strong to ability, reduce the susceptibility of moment of flexure simultaneously, and the section being conducive to reducing scale is poor.The design of trough of belt torsional stop further increases sensor anti-rotation ability in use.
The above, just explain through diagrams principles more of the present invention, this instructions be not the present invention to be confined to shown in described concrete structure and the scope of application, therefore every corresponding modify of being likely utilized and equivalent, all belong to the scope of the claims that the present invention applies for.
Except technical characteristic described in instructions, all the other technical characteristics 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; Be socketed with steel tube dirt-proof boot in the middle part of described elastic body, 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, be provided with two symmetrical blind holes in the middle part of described elastic body, the strain regions that strain ga(u)ge is pasted onto two symmetrical blind via bottom planes strains maximum position.
4. a kind of thin-walled blind hole type column weighting sensor according to claim 1, it 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 counts 1000 Ω large resistance biaxial strain meter.
6. a kind of thin-walled blind hole type column weighting sensor according to claim 1, it is characterized in that, described elastomeric upper surface and lower surface are sphere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420416484.3U CN204085647U (en) | 2014-07-25 | 2014-07-25 | A kind of thin-walled blind hole type column weighting sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420416484.3U CN204085647U (en) | 2014-07-25 | 2014-07-25 | A kind of thin-walled blind hole type column weighting sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204085647U true CN204085647U (en) | 2015-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420416484.3U Expired - Lifetime CN204085647U (en) | 2014-07-25 | 2014-07-25 | A kind of thin-walled blind hole type column weighting sensor |
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| CN (1) | CN204085647U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104089688A (en) * | 2014-07-25 | 2014-10-08 | 济南金钟电子衡器股份有限公司 | Thin-wall blind-hole column type weighing sensor |
| CN106595917A (en) * | 2017-02-03 | 2017-04-26 | 山东省计量科学研究院 | Large-force-value digital force sensor |
-
2014
- 2014-07-25 CN CN201420416484.3U patent/CN204085647U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104089688A (en) * | 2014-07-25 | 2014-10-08 | 济南金钟电子衡器股份有限公司 | Thin-wall blind-hole column type weighing sensor |
| CN106595917A (en) * | 2017-02-03 | 2017-04-26 | 山东省计量科学研究院 | Large-force-value digital force sensor |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 250002 Ji'nan, central city, Shandong hero hill road, No. 147 Patentee after: Shandong Jinzhong science and technology group Limited by Share Ltd Address before: 250002 Ji'nan, central city, Shandong hero hill road, No. 147 Patentee before: Jinan Jinzhong Electronic Scale Co., Ltd. |