CN102788633A - Anti-unbalanced-loading weighing sensor - Google Patents
Anti-unbalanced-loading weighing sensor Download PDFInfo
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- CN102788633A CN102788633A CN2012102925135A CN201210292513A CN102788633A CN 102788633 A CN102788633 A CN 102788633A CN 2012102925135 A CN2012102925135 A CN 2012102925135A CN 201210292513 A CN201210292513 A CN 201210292513A CN 102788633 A CN102788633 A CN 102788633A
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- loading chassis
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Abstract
The invention relates to an anti-unbalanced-loading weighing sensor. The anti-unbalanced-loading weighing sensor is characterized by comprising a loading chassis, of which the top is provided with a boss, wherein a spherical pit is formed in the top face of the boss, a circular concave face is arranged on the bottom face of the loading chassis, a mounting through hole is vertically formed in the concave face; the boss at the top of the loading chassis consists of two steps and is provided with a small bottom and a big top, an annular concave groove is formed in the lower step of the boss, a snap ring is arranged in the concave groove, and an elastomer is arranged at the top face of the snap ring; a strain concave groove is formed in the center of the top of the elastomer, a radial hole is formed in the sidewall of the strain concave groove, a concave groove is formed in the center of the bottom of the elastomer, and a spherical body is arranged at the center of the concave groove and is rotatably located in the spherical pit; a plurality of threaded holes are formed in the bottom face of the elastomer, and the elastomer and the snap ring can be fixedly arranged through a bolt when the elastomer is rotated to a position corresponding to the mounting through hole in the loading chassis; a plurality of through holes are formed in the outer edge of the elastomer; and an overload protection gap is reserved between the bottom face of the elastomer and the loading chassis. The anti-unbalanced-loading weighing sensor is widely applied to the weighing process of various vehicles.
Description
Technical field
The present invention relates to a kind of LOAD CELLS, particularly about a kind of on wagon balance, install have low clearance, a high anti-bias load LOAD CELLS.
Background technology
For being not easy to install and fix the formula truck scale but the place that need weigh to automobile usually adopts a kind of portable vehicle weighing apparatus that automobile is weighed.And truck scale of the prior art generally is not less than 50mm with the height of LOAD CELLS; Because this truck scale LOAD CELLS volume is big, weight is high; Be difficult to portablely, particularly when weighing table driven by automobile, usually can produce the accuracy that unbalance loading influences weighing owing to table top is little.Therefore the LOAD CELLS that provide a kind of and be easy to carry, the anti-bias load performance is high is necessary.
Summary of the invention
To the problems referred to above, the purpose of this invention is to provide a kind of in light weight, highly low, be easy to carry and the anti-bias load LOAD CELLS.
For realizing above-mentioned purpose; The present invention takes following technical scheme: a kind of anti-bias load LOAD CELLS; It is characterized in that: it comprises a loading chassis, and the top on said loading chassis has a boss, and said boss end face is provided with a spherical pit; Said loading undersurface of bottom disc is provided with a circular concave surface, the vertical installation through holes that is provided with in said concave surface; The boss at top, said loading chassis is made up of the two-stage step and the end greatly for a short time, and the step below the said boss is provided with a ring annular groove, in said annular groove, is arranged with a circular snap ring, is provided with the elastic body of a steel at said snap ring end face; Said elastomeric top center is provided with the strain groove of a placement strain ga(u)ge; The sidewall of said strain groove be provided with one be used to wear cable radial hole; Said elastomeric bottom centre is provided with groove; Be provided with a spherical to lower convexity at the center of said groove, said spherical is seated in the spherical pit on said loading chassis rotationally; Said elastomeric bottom surface is provided with some threaded holes, when each said threaded hole rotate to said loading chassis on the installation through holes correspondence position time, just can pass through a bolt, said elastic body and said snap ring are fixed; Said elastic body outer is provided with some through holes that are used to connect weighing table; Leave the overload protection gap between said elastomeric bottom surface and the said loading chassis.
The said strain ga(u)ge that the bottom of said strain groove is provided with adopts the resistance strain gage of a monoblock diaphragm shape; Or to adopt the resistance strain gage of 4 or 8 rectangles being uniformly distributed with, the shape of resistance strain gage be a kind of in square, circular, the polygon, and said strain ga(u)ge is fixed in the said strain groove through the fluid sealant of filling.
Said elastomeric height is smaller or equal to 18mm.
Said resistance-strain is counted a kind of in uniaxial strain gage or the diaphragm strainometer of paper tinsel formula high impedance low energy consumption.
The present invention is owing to take above technical scheme; It has the following advantages: 1, the present invention since adopt height smaller or equal to the elastic body of 18mm as little deformation element; Compare with the height of LOAD CELLS 50mm with truck scale in the prior art; Overall volume is little, in light weight, therefore is convenient to install and carry.2, the present invention is owing to have the strain groove on elastic body; In the strain groove, be placed with strain ga(u)ge; The characteristics of utilizing elastomeric little distortion that strain ga(u)ge is out of shape thereupon; Gather the deformation information of strain ga(u)ge, therefore not only the sensitivity of image data effectively improves, and the strain ga(u)ge paster technique is simple and convenient.3, elastic body of the present invention connects the loading chassis through snap ring; And the spherical surface body through elastic body bottom with load cooperating of chassis pit, so when external pressure is carried in the present invention, elastic body can be under the cooperation of snap ring and annular groove; The along continuous straight runs rotation; Simultaneously under the cooperation of spherical and spherical pit, remain elastic body and contact, thereby realized automatic quick anti-offset joint function with the point in loading domain.4, the present invention is provided with an installation through holes owing to load the chassis; And some threaded holes are set on elastic body; Therefore can load the chassis through rotating, make installation through holes aim at each threaded hole respectively, realize that each bolt passes snap ring and is fixedly connected with elastomeric.5, the present invention is owing to some through holes that are connected with weighing table are set in elastomeric outer; And between elastic body and loading chassis, be designed with the loading gap of certain height; Therefore not only can easily the present invention be installed on the weighing table, and can in weighing process, play 200%～300% overload protection.The present invention can be widely used in the weighing process of various vehicles.
Description of drawings
Fig. 1 is a structural representation of the present invention
Fig. 2 is the schematic top plan view of Fig. 1
Fig. 3 is a user mode synoptic diagram of the present invention
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is carried out detailed description.
Like Fig. 1, shown in Figure 2; The present invention includes a loading chassis 1, the top that loads chassis 1 has a boss 11, and boss 11 end faces are provided with a spherical pit 12; Load 1 bottom surface, chassis and be provided with a circular concave surface 13, the vertical installation through holes 14 that is provided with in concave surface 13.The boss 11 that loads 1 top, chassis is made up of the two-stage step and little the going up greatly in the end, and boss 11 following steps 15 are provided with a ring annular groove 16, in annular groove 16, are provided with a snap ring 2 by circle, are provided with the elastic body 3 of a steel at snap ring 2 end faces.
The top center of elastic body 3 is provided with the strain groove 31 of a placement strain ga(u)ge 4; The sidewall of strain groove 31 be provided with one be used to wear cable radial hole 32; The bottom centre of elastic body 3 is provided with groove 33; Be provided with a spherical 34 to lower convexity at the center of groove 33, spherical 34 is seated in the spherical pit 12 that loads chassis 1 rotationally.The bottom surface of elastic body 3 is provided with some threaded holes 35, when each threaded hole 35 rotates to and load The One On The Chassis installation through holes 14 correspondence positions, just can pass through a bolt 5, and elastic body 3 is fixing with snap ring 2.Be provided with some through holes 36 that are used to connect weighing table in elastic body 3 outers.Leave overload protection gap 6 between the bottom surface 37 of elastic body 3 and the loading chassis 1.
In the foregoing description, the strain ga(u)ge 4 that the bottom of strain groove 31 is provided with can be the resistance strain gage of a monoblock diaphragm shape; Also can be the resistance strain gage of 4 or 8 rectangles being uniformly distributed with, the shape of resistance strain gage can change to some extent, such as: square, circular, polygon etc.Strain ga(u)ge 4 can be fixed in the strain groove 31 through the fluid sealant 7 of filling.The existing product that strain ga(u)ge 4 can have been bought for market, its product type can be a kind of in uniaxial strain gage or the diaphragm strainometer of paper tinsel formula high impedance low energy consumption, repeat no more at this.
In the foregoing description, the height of elastic body 3 should be smaller or equal to 18mm.
As shown in Figure 3, during use,, LOAD CELLS 9 of the present invention more than 6 is installed in weighing table 8 bottoms of weighing system according to the needs of weighing system, again each LOAD CELLS 9 is connected the control system of weighing system respectively through cable.When vehicle reaches weighing table 8; The elastic body 3 of each LOAD CELLS 9 of the present invention can produce small elastic deformation; Each strain ga(u)ge 4 that sticks in the elastic body 3 strain grooves 31 is out of shape thereupon; The deformation information of strain ga(u)ge 4 can be exported to control system through cable, and weighing control system just can obtain the weight of corresponding vehicle after treatment.
Above-mentioned each embodiment only is used to explain the present invention, and wherein the structure of each parts, connected mode etc. all can change to some extent, and every equivalents of on the basis of technical scheme of the present invention, carrying out and improvement all should not got rid of outside protection scope of the present invention.
Claims (4)
1. anti-bias load LOAD CELLS; It is characterized in that: it comprises a loading chassis, and the top on said loading chassis has a boss, and said boss end face is provided with a spherical pit; Said loading undersurface of bottom disc is provided with a circular concave surface, the vertical installation through holes that is provided with in said concave surface; The boss at top, said loading chassis is made up of the two-stage step and the end greatly for a short time, and the step below the said boss is provided with a ring annular groove, in said annular groove, is arranged with a circular snap ring, is provided with the elastic body of a steel at said snap ring end face;
Said elastomeric top center is provided with the strain groove of a placement strain ga(u)ge; The sidewall of said strain groove be provided with one be used to wear cable radial hole; Said elastomeric bottom centre is provided with groove; Be provided with a spherical to lower convexity at the center of said groove, said spherical is seated in the spherical pit on said loading chassis rotationally; Said elastomeric bottom surface is provided with some threaded holes, when each said threaded hole rotate to said loading chassis on the installation through holes correspondence position time, just can pass through a bolt, said elastic body and said snap ring are fixed; Said elastic body outer is provided with some through holes that are used to connect weighing table; Leave the overload protection gap between said elastomeric bottom surface and the said loading chassis.
2. a kind of anti-bias load LOAD CELLS as claimed in claim 1 is characterized in that: the said strain ga(u)ge that the bottom of said strain groove is provided with adopts the resistance strain gage of a monoblock diaphragm shape; Or to adopt the resistance strain gage of 4 or 8 rectangles being uniformly distributed with, the shape of resistance strain gage be a kind of in square, circular, the polygon, and said strain ga(u)ge is fixed in the said strain groove through the fluid sealant of filling.
3. a kind of anti-bias load LOAD CELLS as claimed in claim 1 is characterized in that: said elastomeric height is smaller or equal to 18mm.
4. like claim 1 or 2 or 3 described a kind of anti-bias load LOAD CELLSs, it is characterized in that: said resistance-strain is counted a kind of in uniaxial strain gage or the diaphragm strainometer of paper tinsel formula high impedance low energy consumption.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102925135A CN102788633A (en) | 2012-08-16 | 2012-08-16 | Anti-unbalanced-loading weighing sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102925135A CN102788633A (en) | 2012-08-16 | 2012-08-16 | Anti-unbalanced-loading weighing sensor |
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| Publication Number | Publication Date |
|---|---|
| CN102788633A true CN102788633A (en) | 2012-11-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102925135A Pending CN102788633A (en) | 2012-08-16 | 2012-08-16 | Anti-unbalanced-loading weighing sensor |
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| CN (1) | CN102788633A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103308498A (en) * | 2013-05-14 | 2013-09-18 | 中国科学院物理研究所 | Direction-controlled uniaxial strain applying device for two-dimensional layered nano material |
| CN105129231A (en) * | 2015-08-20 | 2015-12-09 | 宁波键一电子信息技术有限公司 | Portable network-type intelligent refrigeration box |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20000055483A (en) * | 1999-02-06 | 2000-09-05 | 김동진 | A load cell for electronic scale |
| CN2482686Y (en) * | 2001-07-09 | 2002-03-20 | 济南金钟电子衡器股份有限公司 | Ultrathin weighing sensor |
| KR20100100719A (en) * | 2010-07-22 | 2010-09-15 | 주식회사 카스 | Load cell unit of a weight-bridge |
| CN202141503U (en) * | 2011-06-23 | 2012-02-08 | 宁波金旭电子有限公司 | Center hole type weighing sensor |
| CN102410864A (en) * | 2011-07-27 | 2012-04-11 | 莆田市力天量控有限公司 | Load sensor |
| CN202329537U (en) * | 2011-11-26 | 2012-07-11 | 济南金钟电子衡器股份有限公司 | Round full-bridge resistance strain gage |
| CN202853716U (en) * | 2012-08-16 | 2013-04-03 | 锐马（福建）电气制造有限公司 | Unbalance loading resisting weighing sensor |
-
2012
- 2012-08-16 CN CN2012102925135A patent/CN102788633A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20000055483A (en) * | 1999-02-06 | 2000-09-05 | 김동진 | A load cell for electronic scale |
| CN2482686Y (en) * | 2001-07-09 | 2002-03-20 | 济南金钟电子衡器股份有限公司 | Ultrathin weighing sensor |
| KR20100100719A (en) * | 2010-07-22 | 2010-09-15 | 주식회사 카스 | Load cell unit of a weight-bridge |
| CN202141503U (en) * | 2011-06-23 | 2012-02-08 | 宁波金旭电子有限公司 | Center hole type weighing sensor |
| CN102410864A (en) * | 2011-07-27 | 2012-04-11 | 莆田市力天量控有限公司 | Load sensor |
| CN202329537U (en) * | 2011-11-26 | 2012-07-11 | 济南金钟电子衡器股份有限公司 | Round full-bridge resistance strain gage |
| CN202853716U (en) * | 2012-08-16 | 2013-04-03 | 锐马（福建）电气制造有限公司 | Unbalance loading resisting weighing sensor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103308498A (en) * | 2013-05-14 | 2013-09-18 | 中国科学院物理研究所 | Direction-controlled uniaxial strain applying device for two-dimensional layered nano material |
| CN105129231A (en) * | 2015-08-20 | 2015-12-09 | 宁波键一电子信息技术有限公司 | Portable network-type intelligent refrigeration box |
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Application publication date: 20121121 |