CN201062992Y - Four-pole type weighting sensor - Google Patents
Four-pole type weighting sensor Download PDFInfo
- Publication number
- CN201062992Y CN201062992Y CNU2007200320626U CN200720032062U CN201062992Y CN 201062992 Y CN201062992 Y CN 201062992Y CN U2007200320626 U CNU2007200320626 U CN U2007200320626U CN 200720032062 U CN200720032062 U CN 200720032062U CN 201062992 Y CN201062992 Y CN 201062992Y
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- column type
- vertical
- strainometer
- load
- resistance strain
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Abstract
The utility model discloses a tetrastyle weighing sensor, which comprises a soleplate, quadrangle column type elastomers with resistance strain gauges on the surface and intender components. Four quadrangle column type elastomers with same sizes are evenly positioned on the soleplate; and four erect surfaces of each quadrangle column type elastomer are respectively affixed with one resistance strain gauge, wherein, two transverse and two vertical; all transverse resistance strain gauges and all vertical resistance strain gauges of all quadrangle column type elastomers are respectively connected in series to form a wheatstone bridge; the intender components which are used for transmitting load are positioned on the quadrangle column type elastomers. When the tetrastyle weighing sensor bears normal pressure, the force is transmitted through the intender components to the four quadrangle column type elastomers and the force value is transformed into electric signal by the resistance strain gauges through wheatstone bridge, the electric signal is output correctly through electric cable. The height and size of the sensor with the structure are greatly reduced, moreover, when the sensor with the structure bears eccentric force load or lateral force load, the measuring precision is be influenced and the load error does not occur.
Description
Technical field
The utility model relates to a kind of LOAD CELLS, especially a kind of polystyle LOAD CELLS.
Background technology
The pillar LOAD CELLS is that a kind of metallic elastic body that utilizes is converted to the function element of strain as power, has been widely used in all kinds of electronic-weighing equipment such as electronic vehicle weighing apparatus, track scale, hopper claim, e-platform claims at present.The compact conformation of this class sensor, geometric configuration is simple, and rigidity is bigger, is easy to realize welding.But mostly there are following shortcomings in existing pillar LOAD CELLS: the profile of column type sensor is all huger, and mechanical processing difficulty is also very big, and is particularly evident to wide range especially; Measuring error is bigger when being subjected to side force load and eccentric load.
The utility model content
The purpose of this utility model is to overcome deficiency of the prior art, proposes a kind of four-column type LOAD CELLS.The technical scheme that realizes above-mentioned purpose is: the four-column type LOAD CELLS, it comprises base plate, column type elastomer and pressuring head part, middle part, column type elastomer surface is pasted with strain ga(u)ge, strain ga(u)ge is formed certain Wheatstone bridge by its bearing load state export the voltage signal that changes with weight, it is characterized in that: evenly distributing on described base plate is equipped with the square column type elastomer of four same sizes, before described each column type elastomer, after, a left side, respectively be pasted with a strainometer on right four faces, wherein transverse strain is in respect of two, and vertical strain is in respect of two; Transverse strain meter and vertical strainometer are contacted respectively on all elastic bodys, form Wheatstone bridge then; The pressuring head part of described transmitted load rests four column type elastomer tops of described test load.When sensor was subjected to normal pressure, power was delivered on four elastic bodys by pressure head, converted the power value to electric signal by Wheatstone bridge by the strainometer on the elastic body and exported from cable exactly.
The beneficial effect of the utility model four-column type LOAD CELLS is, 1. because elastic body is made up of four cubic cylinders simple in structure, the height of sensor and volume reduced greatly, and each little square column processing simply, and quenching degree is also fine; 2. when sensor is subjected to certain eccentric force load, because four elastic bodys are evenly to distribute and flexibly connect with pressure head, eccentric load is adjusted the power value and is distributed on each single-column, and power value total amount value is constant, therefore can influence power value measuring accuracy; When being subjected to side force load, because pressure head contacts for movable with elastic body, side force can not be delivered on elastic body and the strainometer, does not therefore have electric signal output, thereby has overcome side force load error.
Description of drawings
Fig. 1 is the structural representation of an embodiment of the utility model.
Fig. 2 is the A-A hatching line view of Fig. 1.
Among the figure: 1. base plate, 2. terminal block, 3. column type elastomer, 4. strainometer, 5. pressure head, 6. sensor outer housing assembly, 7. diaphragm, 8. locking wire joint, 9. cable.
Embodiment
Below in conjunction with accompanying drawing the utility model is described further.
As shown in the figure, the four-column type LOAD CELLS by base plate 1, the terminal block 2 of forming Wheatstone bridge, four column type elastomers 3, stick on the strainometer 4 on the elastic body, the pressure head 5 that is placed on the elastic body top, the base-mounted sensor outer housing assembly 6 of weldering, diaphragm 7 and sensor signal output unit that shell and pressure head are welded together form.
Terminal block 2 sticks on the base plate 1, four column type elastomers 3 are uniform and stick on the base plate 1 around base plate 1 symcenter, the transversal section square of each column type elastomer, before square column type elastomer 3, after, a left side, respectively be pasted with a strainometer on right four faces, be the transverse strain meter on two opposing faces wherein, be vertical strainometer on two other opposing face, between the transverse strain meter on two elastic bodys on the diagonal positions, contact, contact between the vertical strainometer, like this, strainometer between two elastic bodys forms two brachium pontis, just forms four brachium pontis between four elastic bodys, then four brachium pontis is formed Wheatstone bridges; Pressure head 5 is shelved on four elastic body tops, and diaphragm 7 ring sets are on pressure head 5, and the interior edge of diaphragm 7 is welded together with pressure head 5.The lower edge of sensor outer housing assembly 6 is welded on base 1,, weld the upper edge of sensor outer housing assembly 6 and diaphragm 7 outers, and the locking wire joint 8 of attached cable line 9 is arranged on casing assembly 6.Sensor signal is by cable 9 outputs.
The electric connection mode of strainometer is except that above-mentioned form on four column type elastomers, can also be to connect between the transverse strain meter on adjacent two elastic bodys, connect between the vertical strainometer, between four elastic bodys, form four brachium pontis equally, then four brachium pontis are formed Wheatstone bridge.
Claims (4)
1. four-column type LOAD CELLS, it comprises base plate, column type elastomer and pressuring head part, middle part, column type elastomer surface is pasted with strain ga(u)ge, it is characterized in that: evenly distributing on described base plate is equipped with the square column type elastomer of four same sizes, respectively be pasted with a strainometer on four faces in the front, rear, left and right of described each column type elastomer, wherein transverse strain is in respect of two, and vertical strain is in respect of two; Transverse strain meter and vertical strainometer are contacted respectively on all elastic bodys, form Wheatstone bridge then; The pressure head of described transmitted load rests four column type elastomer tops of described test load.
2. according to the described four-column type LOAD CELLS of claim 1, it is characterized in that: on described each square column type elastomer, being the transverse strain meter on two opposing faces, is vertical strainometer on two other opposing face.
3. according to claim 1 or 2 described four-column type LOAD CELLS, it is characterized in that: in described four column type elastomers, between the transverse strain meter on two elastic bodys on the diagonal positions, contact, contact between the vertical strainometer.
4. according to claim 1 or 2 described four-column type LOAD CELLS, it is characterized in that: in described four column type elastomers, connect between the transverse strain meter on two adjacent elastic bodys, connect between the vertical strainometer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200320626U CN201062992Y (en) | 2007-05-29 | 2007-05-29 | Four-pole type weighting sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200320626U CN201062992Y (en) | 2007-05-29 | 2007-05-29 | Four-pole type weighting sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201062992Y true CN201062992Y (en) | 2008-05-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200320626U Expired - Fee Related CN201062992Y (en) | 2007-05-29 | 2007-05-29 | Four-pole type weighting sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201062992Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102539026A (en) * | 2012-03-04 | 2012-07-04 | 中航电测仪器股份有限公司 | Large-range columnar pulling-pressing bidirectional force transducer |
| CN103278231A (en) * | 2013-05-14 | 2013-09-04 | 济南金钟电子衡器股份有限公司 | Elastic body of weighing sensor and manufacturing method of elastic body |
| CN106141580A (en) * | 2016-07-01 | 2016-11-23 | 汉中泉源电子有限公司 | A kind of processing technique of circular ring type LOAD CELLS |
| 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 |
-
2007
- 2007-05-29 CN CNU2007200320626U patent/CN201062992Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102539026A (en) * | 2012-03-04 | 2012-07-04 | 中航电测仪器股份有限公司 | Large-range columnar pulling-pressing bidirectional force transducer |
| CN103278231A (en) * | 2013-05-14 | 2013-09-04 | 济南金钟电子衡器股份有限公司 | Elastic body of weighing sensor and manufacturing method of elastic body |
| CN103278231B (en) * | 2013-05-14 | 2015-09-16 | 济南金钟电子衡器股份有限公司 | Elastic body of a kind of LOAD CELLS and preparation method thereof |
| CN105021269A (en) * | 2013-05-14 | 2015-11-04 | 济南金钟电子衡器股份有限公司 | Elastomer of weighing sensor |
| CN106141580A (en) * | 2016-07-01 | 2016-11-23 | 汉中泉源电子有限公司 | A kind of processing technique of circular ring type LOAD CELLS |
| 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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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080521 |