CN2844864Y - The beam type LOAD CELLS - Google Patents
The beam type LOAD CELLS Download PDFInfo
- Publication number
- CN2844864Y CN2844864Y CN 200520093704 CN200520093704U CN2844864Y CN 2844864 Y CN2844864 Y CN 2844864Y CN 200520093704 CN200520093704 CN 200520093704 CN 200520093704 U CN200520093704 U CN 200520093704U CN 2844864 Y CN2844864 Y CN 2844864Y
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- CN
- China
- Prior art keywords
- girder
- semi
- load cells
- pedestal
- beam type
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Measurement Of Force In General (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
The utility model relates to a kind of beam type LOAD CELLS, and the other end of the semi-girder of this LOAD CELLS is suspended in the top of measuring pedestal.The sensor of this structure can solve it effectively because of the crooked irreclaimable problem of super-elasticity limit, and can prolong its serviceable life greatly under the prerequisite that does not improve its cost of manufacture; Simultaneously can select the structure of single cantilever beam just can finish its weighing task, with its cost of manufacture of further reduction.
Description
Technical field:
The utility model relates to a kind of sensor that is provided on the weighing apparatus, particularly relates to a kind of by beam type LOAD CELLS that parts constituted such as semi-girder and strain resistors.
Background technology:
The existing employed sensor of weighing apparatus has multiple structures such as bridge-type, box, pillar and cantilevered, and the beam type sensor is a kind of structure that is generally adopted in the weighing apparatus.The lower surface of the semi-girder in the cantilever sensor is provided with the terraced steps of a height about 6mm, its terraced steps is fixed on the part of measuring on the pedestal and constitutes fixed part, measure that part formation elastic deformation part of pedestal top and be suspended in, and the measuring-signal generating assembly that on the inner arm of semi-girder, also is provided with strain resistor and is electrically connected with described strain resistor.In use, behind the certain load of semi-girder carrying, semi-girder is fulcrum generation elastic deformation and bending with its stiff end, and straingauge also produces corresponding deformation simultaneously, and deformation quantity is read or demonstrated the concrete weight of institute's application of load by the measuring-signal generating assembly.Yet, because the spacing between the upper surface of the lower surface of the crushed element of semi-girder and measurement pedestal is relatively large, if the load that is applied on it is overweight, when promptly surpassing the elastic limit of semi-girder, semi-girder behind the pressurized can not restore to the original state after producing deformation once more, causes its permanent damages.For preventing that the problems referred to above from taking place, in the prior art, adopt the limited screw that is installed on the measurement pedestal to limit the semi-girder degree of crook usually.Though can hindering semi-girder, limited screw surpasses the elastic limit bending, because screw is the screw-on parts, to do the time spent very easily loosening being subjected to external force, so screw is difficult for accurately and is the semi-girder location with immobilizing, and it is located inaccurate meeting and directly causes the semi-girder damage.
" the anti-g-load LOAD CELLS " of No. 2068675 bulletins of Chinese patent is exactly a kind of semi-girder damages problem because of g-load example that solves.These patent improvements are with the suspension position of semi-girder lengthening, and enlarging its measurement range, and the measurement pedestal below the suspension end of semi-girder is provided with limited block, surpasses the elastic limit buckling problem to solve semi-girder.But because semi-girder is long, if institute's application of load is overweight, even be provided with limited block in the end of semi-girder, its central region also surpasses the elastic limit bending easily, can cause its damage equally.
And the another kind of solution that " the double cantilever beam LOAD CELLS " of No. 2459636 bulletins of Chinese patent provides.This patent adopts two ends to be the semi-girder of suspension strain regions.Though the semi-girder of this kind structure can solve the problem of middle part super-elasticity limit bending,, the spacing between its lower surface and the measurement pedestal still is provided with bigger, and there is super-elasticity limit buckling problem equally in the strain regions at its two ends.
Summary of the invention:
The purpose of this utility model provides a kind of beam type LOAD CELLS of utilizing the mode that changes semi-girder elastic deformation part and measure distance between the pedestal to solve semi-girder premature damage problem.
The beam type LOAD CELLS that the utility model proposed, comprise that an end is installed in semi-girder of measuring on the pedestal and the strain resistor that is arranged on this semi-girder inner arm, and the measuring-signal generating assembly that is electrically connected with described strain resistor, the other end of described semi-girder be suspended in measure pedestal above.
Describedly be suspended in distance between the semi-girder measured on the pedestal and the measurement pedestal greater than 1.6mm, and less than or etc. 2mm.
The beam type LOAD CELLS that the utility model proposed only is that the suspension part of semi-girder and the hypotelorism between the measurement pedestal just can be solved it effectively because of the crooked irreclaimable problem of super-elasticity limit, so this LOAD CELLS can prolong its serviceable life greatly under the prerequisite that does not improve cost of manufacture; Simultaneously can select the structure of single cantilever beam just can finish its weighing task, with its cost of manufacture of further reduction.
Description of drawings:
Accompanying drawing 1 is the surface structure synoptic diagram of the embodiment of beam type LOAD CELLS that proposes of the utility model.
Embodiment:
Referring to Fig. 1, this figure provides the surface structure of the embodiment of beam type LOAD CELLS that the utility model proposes.This LOAD CELLS comprises semi-girder 1, strain resistor 2, measures pedestal 3 and measuring-signal generating assembly.Wherein, described semi-girder 1 is to be made of the metallic elastic body, its face relative with measuring pedestal 3 is the plane that an end regions has step 11, and the plane at step 11 places is installed in to be measured on the pedestal 3, and other position is suspended in the top of measuring pedestal 3, and distance between the two is between 1.6mm to 2mm, if distance between the two is less than 1.6mm, semi-girder 1 does not have due effect, if greater than 2mm, easily makes semi-girder 1 super-elasticity limit crooked and damage.Semi-girder 1 is provided with strain bore 4, at strain bore 4 strain resistor 2 is installed, and this strain resistor 2 is connected the back with the insulating gel sealing by wheatstone bridge, the bridge measurement power supply is provided and draws the strain measurement signal by cable again.
Claims (2)
1, beam type LOAD CELLS, comprise that an end is installed in semi-girder of measuring on the pedestal and the strain resistor that is arranged on this semi-girder inner arm, and the measuring-signal generating assembly that is electrically connected with described strain resistor, it is characterized in that: the other end of described semi-girder is suspended in the top of measuring pedestal.
2, LOAD CELLS according to claim 1 is characterized in that: describedly be suspended in distance between the semi-girder measured on the pedestal and the measurement pedestal greater than 1.6mm, and less than or etc. 2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520093704 CN2844864Y (en) | 2005-11-21 | 2005-11-21 | The beam type LOAD CELLS |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520093704 CN2844864Y (en) | 2005-11-21 | 2005-11-21 | The beam type LOAD CELLS |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2844864Y true CN2844864Y (en) | 2006-12-06 |
Family
ID=37486811
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520093704 Expired - Fee Related CN2844864Y (en) | 2005-11-21 | 2005-11-21 | The beam type LOAD CELLS |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2844864Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106228876A (en) * | 2016-10-21 | 2016-12-14 | 无锡职业技术学院 | A kind of high-precision pressure sensor experimental model and experimental technique thereof |
| CN108870471A (en) * | 2018-07-19 | 2018-11-23 | 上海纯米电子科技有限公司 | Weighing electromagnetic oven and its cooking methods |
-
2005
- 2005-11-21 CN CN 200520093704 patent/CN2844864Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106228876A (en) * | 2016-10-21 | 2016-12-14 | 无锡职业技术学院 | A kind of high-precision pressure sensor experimental model and experimental technique thereof |
| CN108870471A (en) * | 2018-07-19 | 2018-11-23 | 上海纯米电子科技有限公司 | Weighing electromagnetic oven and its cooking methods |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Yuntong Precisioning Measuring Apparatus Manufacturing Co., Ltd., Benxi City Assignor: Wang Bin Contract record no.: 2011210000019 Denomination of utility model: Cantilever type weighing sensor Granted publication date: 20061206 License type: Exclusive License Record date: 20110308 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20061206 Termination date: 20121121 |