CN105486436A - Circular load sensor - Google Patents
Circular load sensor Download PDFInfo
- Publication number
- CN105486436A CN105486436A CN201610085665.6A CN201610085665A CN105486436A CN 105486436 A CN105486436 A CN 105486436A CN 201610085665 A CN201610085665 A CN 201610085665A CN 105486436 A CN105486436 A CN 105486436A
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- CN
- China
- Prior art keywords
- metal elastic
- load sensor
- circular
- elastic gonosome
- top board
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/20—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress
- G01L1/22—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges
- G01L1/2206—Special supports with preselected places to mount the resistance strain gauges; Mounting of supports
- G01L1/2231—Special supports with preselected places to mount the resistance strain gauges; Mounting of supports the supports being disc- or ring-shaped, adapted for measuring a force along a single direction
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
- Measurement Of Force In General (AREA)
Abstract
The invention relates to a circular load sensor which is provided with an upper press plate, a lower press plate and a circular metal elastic body arranged between the upper press plate and the lower press plate. The upper pressure bearing face and the lower pressure bearing face of the metal elastic body are planes and are parallel mutually, a section in the radius direction of the metal elastic body is I-shaped, and a resistance strain gauge is adhered to the middle of a vertical rib of the I shape. When the circular metal elastic body is stressed, the I-shaped vertical rib produces compressive deformation so as to enable the resistance of the strain gauge adhered to the vertical rib to change, and a test shows that the resistance change of the resistance strain gauge can conversely act on the load exerted on the circular load sensor. The different bearing capacity requirements, the low-height requirement and different testing accuracy requirements of the circular load sensor can be met through different combination of the circular metal elastic bodies different in circular ring diameter and the I-shaped vertical ribs different in height and thickness. The circular load sensor is mainly of a vertical or horizontal rotation structure and greatly facilitates machining and manufacture, and the manufacturing cost is greatly reduced.
Description
Technical field
The present invention relates to a kind of load sensor.
Background technology
At present, the load sensor for measuring large load mainly contains column formula load sensor, radial load sensor, also has a kind of circular accessible formula load sensor.Column formula load sensor structure height is high, and many occasions cannot use, and its cost is very high; Radial load sensor processed complex, although structure height is lower, compared with the column formula load sensor of same bearing capacity, its manufacturing cost is higher; The circular elastic body section configuration of its impression distortion of existing a kind of circular accessible formula load sensor is laterally zygomorphic taper shape, the upper lower platen contacted with it also should have one tapered mutually, circular tapered elastic body is under upper and lower platen pressure effect, its hoop will produce stretcher strain, the load be applied to it by the combined test testing circular tapered elastomeric Tension and Compression distortion.Tapered requirement of circular elastic body and upper lower platen contacts completely, and quality of fit requires very high, and tapered processing comparatively difficulty, another aspect, owing to being provided with taper surface, adds the structure height of sensor, and weight increases, and manufacturing cost also increases.
Summary of the invention
In order to improve the above-mentioned shortcoming of prior art, fundamental purpose of the present invention is, a kind of circular load sensor is provided, it has top board, lower platen and is located at circular metal elastic gonosome therebetween, the upper and lower pressure-bearing surface of metal elastic gonosome is plane, section shape along metal elastic gonosome annular radii direction is I-shaped shape, and is pasted with resistance strain gage in the centre of the vertical rib of I-shaped shape.Metal elastic gonosome of the present invention by the effect of pulling force, does not use safer, and does not need to process the conical surface, and make its processing become more simple, structure height is also lower, can reduce manufacturing cost by a relatively large margin.
In order to achieve the above object, main technical schemes provided by the invention comprises:
A kind of circular load sensor, it has top board, lower platen and is located at metal elastic gonosome therebetween, and the elastomeric sensing element of connection metal, its improvements are: circular metal elastic gonosome is I-shaped shape along the section shape in its annular radii direction, on it, pressure-bearing surface, lower pressure-bearing surface are plane, and the two is parallel, realize the measurement to load by the pure elastic compression distortion of the vertical rib of I-shaped shape elastic body.
In one embodiment of the present of invention, the position of the upper pressure-bearing surface of the corresponding metal elastic gonosome of lower surface of top board is provided with the first holding tank, and the position of the lower pressure-bearing surface of the corresponding metal elastic gonosome of upper surface of lower platen is provided with the second holding tank.
In one embodiment of the present of invention, between the lower surface of top board and the upper pressure-bearing surface of metal elastic gonosome, be provided with the first slide plate, between the upper surface of lower platen and the lower pressure-bearing surface of metal elastic gonosome, be provided with the second slide plate.
In one embodiment of the present of invention, metal elastic gonosome is annular, and the section shape along its annular radii direction is I-shaped shape, and on it, pressure-bearing surface, lower pressure-bearing surface are plane, and the two is parallel.
In one embodiment of the present of invention, be provided with seal closure between top board, lower platen, metal elastic gonosome is located in the space that top board, lower platen and seal closure surround.
Seal closure entirety, in annular, is fixedly connected with top board, lower platen by bolt.
In above-mentioned any embodiment, sensing element is the resistance strain gage being pasted on metallic elastic body sidewall, forms resistance-strain type load sensor.
In one embodiment of the present of invention, metal elastic gonosome is I shape along the section shape in its annular radii direction, and resistance strain gage is located at inner side or the outer side waist of I shape.
In one embodiment of the present of invention, the medium position of top board, lower platen can be provided with through hole, also can not establish through hole.
The invention has the beneficial effects as follows: circular load sensor of the present invention, due to its metal elastic gonosome be I shape section circular, upper and lower surface is parallel, pure pressurized, therefore, its processing becomes simple, structure height is low, lightweight, and manufacturing cost is reduced by a relatively large margin.
Accompanying drawing explanation
Fig. 1 is the biopsy cavity marker devices schematic diagram of first embodiment of the invention A-A position;
Fig. 2 is the biopsy cavity marker devices schematic diagram of first embodiment of the invention B-B position;
Fig. 3 is the biopsy cavity marker devices schematic diagram of second embodiment of the invention C-C position;
Fig. 4 is the biopsy cavity marker devices schematic diagram of second embodiment of the invention D-D position.
[description of reference numerals]
1, top board, 2, slide plate, 3, metal elastic gonosome, 4, resistance strain gage, 5, seal closure, 6, set bolt, 7, lower platen.
Embodiment
In order to explain the present invention better, below in conjunction with accompanying drawing, by specific embodiment, the invention will be further described.
See Fig. 1 and Fig. 2, the circular load sensor of first embodiment of the invention, it has top board 1, lower platen 7, is located at metal elastic gonosome 3 therebetween, and is located at the resistance strain gage 4 of metal elastic gonosome 3.
Wherein, top board 1 is overall rounded, and its upper surface is plane, as the upper carrying plane of load sensor; Its lower surface is provided with the first holding tank of annular, and the bottom land of the first holding tank is plane; The outer rim of its circle is provided with some horizontal or vertical assembly holes (being 6 vertical counter sinks in the present embodiment).
Be provided with slide plate 2 in first holding tank as antifriction layer, slide plate 2 entirety is in annular, and its upper and lower surface is parallel, is embedded at the bottom land of the first holding tank.
Wherein, lower platen 7 is overall rounded, and its lower surface is plane, as the lower support surface of load sensor; Its upper surface is provided with second holding tank (assembling after corresponding with the first holding tank of top board 1) of annular, and the bottom land of the second holding tank be plane (assembling the bottom land plane parallel of the first holding tank of rear and top board 1); The outer rim of its circle is provided with some horizontal or vertical assembly holes (being 6 vertical counter sinks in the present embodiment).
Be provided with slide plate 2 in second holding tank as antifriction layer, slide plate 2 entirety is in annular, and its upper and lower surface is parallel, is embedded at the bottom land of the second holding tank.
Wherein, metal elastic gonosome 3 entirety is in annular, the upper surface of annulus is plane, forms the upper loading end (after assembling, the upper loading end of metal elastic gonosome 3 is located at the first holding tank of top board 1, and carrying comes from the acting force of the bottom land plane of the first holding tank) of metal elastic gonosome 3; The lower surface of metal elastic gonosome 3 is the plane parallel with upper surface, form the lower loading end (after assembling, the lower loading end of metal elastic gonosome 3 is located at the second holding tank of lower platen 7, the acting force coming from top board 1 is put on the bottom land plane of the second holding tank) of metal elastic gonosome 3; Some resistance strain gages 4 are located at inner side or the lateral wall (being the lateral wall that four resistance strain gages 4 are distributed in metal elastic gonosome 3 in the present embodiment) of metal elastic gonosome 3.
Be preferably, the upper and lower loading end of metal elastic gonosome 3 matches with the slide plate 2 in first, second holding tank respectively, wherein, the upper and lower loading end of metal elastic gonosome 3 through surface treatment, to reduce friction on the impact of measuring accuracy.
Preferably, the section shape in metal elastic gonosome 3 radially direction is I shape, and resistance strain gage 4 is located at the outside of I shape or the medial shaft waist to rib.
Wherein, the circular load sensor in the present embodiment also has seal closure 5, and overall is annular, is located between top board 1 and lower platen 7, with bolts with upper and lower bearing plate; In the present embodiment, the upper and lower anchor ring of annular seal cover 5 is respectively equipped with 6 threaded holes, and 6 counter sinks of corresponding top board 1 and lower platen 7, are fixedly connected with seal closure 5 with lower platen 7 with top board 1 by set bolt 6 respectively.
See Fig. 3 and Fig. 4, the circular load sensor of second embodiment of the invention, the difference of itself and the first embodiment is only, in first embodiment, top board 1 and lower platen 7 are circular slab, in the second embodiment, top board 1 and lower platen 7 are annular slab, and the middle part namely both is provided with through hole.
In sum, circular load sensor of the present invention, there is top board, lower platen and be located at circular metal elastic gonosome therebetween, the upper and lower pressure-bearing surface of metal elastic gonosome is plane, and the two is parallel, section shape along metal elastic gonosome annular radii direction is I-shaped shape, and is pasted with resistance strain gage in the centre of the vertical rib of I-shaped shape; When circular metal elastic gonosome pressurized, the vertical rib of its I-shaped shape will produce compression deformation, thus the resistance of stickup foil gauge is thereon changed, just can reverse effect load on the invention by the change of test foil gauge resistance.It is the measurement that the elastomeric pure elastic compression distortion of circular ring metal being I-shaped shape by section realizes to load, metal elastic gonosome is not by the effect of pulling force, use safer, and do not need to process the conical surface, its processing is made to become simpler, structure height is also lower, lightweight, can reduce manufacturing cost by a relatively large margin.In addition, between upper lower platen and annular metal elastomer contact face, be also provided with antifriction layer, in order to reduce upper lower platen and annular metal elastomer contact face friction force to the impact of the compression deformation of the vertical rib of I-shaped shape, improve the measuring accuracy of sensor.Load sensor of the present invention, realizes sensor to the requirement of different bearer power, the requirement of low clearance and different measuring accuracy requirements by the size of circular metal elastic gonosome circle diameter, the height of the vertical rib of I-shaped shape and the various combination of thickness.The structure of load sensor of the present invention is mainly revolving structure that is vertical and level, and be extremely convenient to processing and manufacturing, cost is reduced greatly.
Claims (9)
1. a circular load sensor, it has top board, lower platen and is located at metal elastic gonosome therebetween, and is pasted onto the resistance strain gage on metal elastic gonosome, it is characterized in that:
Upper pressure-bearing surface, the lower pressure-bearing surface of metal elastic gonosome are plane, and the two is parallel.
2. circular load sensor as claimed in claim 1, is characterized in that:
The position of the upper pressure-bearing surface of the corresponding metal elastic gonosome of lower surface of top board is provided with the first holding tank; The position of the lower pressure-bearing surface of the corresponding metal elastic gonosome of upper surface of lower platen is provided with the second holding tank.
3. circular load sensor as claimed in claim 1, is characterized in that:
The first lubricating layer is provided with between the lower surface of top board and the upper pressure-bearing surface of metal elastic gonosome; The second lubricating layer is provided with between the upper surface of lower platen and the lower pressure-bearing surface of metal elastic gonosome.
4. circular load sensor as claimed in claim 1, is characterized in that: metal elastic gonosome entirety is in toroidal.
5. circular load sensor as claimed in claim 1, is characterized in that: be provided with seal closure between top board, lower platen, and metal elastic gonosome is located in the space that upper and lower pressing plate and seal closure surround.
6. circular load sensor as claimed in claim 5, is characterized in that: seal closure entirety is in toroidal, and it is connected and fixed by bolt and top board and lower platen.
7. the circular load sensor as described in claim 1,2,3,4,5 or 6, is characterized in that: resistance strain gage is located at the sidewall of metal elastic gonosome.
8. circular load sensor as claimed in claim 7, is characterized in that: circular metal elastic gonosome is I shape along the section of its radial direction, and resistance strain gage is located at outside or the inner side waist of I shape.
9. circular load sensor as claimed in claim 1, is characterized in that: the medium position of top board, lower platen is provided with through hole, or does not establish through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610085665.6A CN105486436A (en) | 2016-02-15 | 2016-02-15 | Circular load sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610085665.6A CN105486436A (en) | 2016-02-15 | 2016-02-15 | Circular load sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105486436A true CN105486436A (en) | 2016-04-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610085665.6A Pending CN105486436A (en) | 2016-02-15 | 2016-02-15 | Circular load sensor |
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| CN (1) | CN105486436A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107525615A (en) * | 2017-09-01 | 2017-12-29 | 北京中博力科测控技术有限公司 | A kind of protection device of closed measurement of rolling force sensor |
| CN109813472A (en) * | 2019-03-14 | 2019-05-28 | 湖南道达宇科技有限公司 | A kind of embedded load sensor |
| CN112629732A (en) * | 2020-11-24 | 2021-04-09 | 湖南道达宇科技有限公司 | Embedded cable force sensor |
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| CN85104807A (en) * | 1985-06-02 | 1986-08-06 | 哈尔滨工业大学 | Multi-range load cell |
| CN2108913U (en) * | 1991-09-28 | 1992-07-01 | 辽阳锻压机床厂 | Stress type combined super heavy sensor for measuring force |
| JPH04216426A (en) * | 1990-12-14 | 1992-08-06 | Kawatetsu Adobantetsuku Kk | Load cell |
| CN2280897Y (en) * | 1996-08-15 | 1998-05-06 | 常州托利多电子衡器有限公司 | Press type sensor |
| CN202141511U (en) * | 2011-06-23 | 2012-02-08 | 宁波金旭电子有限公司 | Column type weighing sensor |
| CN202141503U (en) * | 2011-06-23 | 2012-02-08 | 宁波金旭电子有限公司 | Center hole type 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 |
| CN104458077A (en) * | 2014-11-19 | 2015-03-25 | 上海应用技术学院 | Force sensor with test and calibration mechanism |
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2016
- 2016-02-15 CN CN201610085665.6A patent/CN105486436A/en active Pending
Patent Citations (8)
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| CN85104807A (en) * | 1985-06-02 | 1986-08-06 | 哈尔滨工业大学 | Multi-range load cell |
| JPH04216426A (en) * | 1990-12-14 | 1992-08-06 | Kawatetsu Adobantetsuku Kk | Load cell |
| CN2108913U (en) * | 1991-09-28 | 1992-07-01 | 辽阳锻压机床厂 | Stress type combined super heavy sensor for measuring force |
| CN2280897Y (en) * | 1996-08-15 | 1998-05-06 | 常州托利多电子衡器有限公司 | Press type sensor |
| CN202141511U (en) * | 2011-06-23 | 2012-02-08 | 宁波金旭电子有限公司 | Column type weighing sensor |
| CN202141503U (en) * | 2011-06-23 | 2012-02-08 | 宁波金旭电子有限公司 | Center hole type 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 |
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| 张向军: "《微机电***机械学》", 30 September 2012, 北京：清华大学出版社 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107525615A (en) * | 2017-09-01 | 2017-12-29 | 北京中博力科测控技术有限公司 | A kind of protection device of closed measurement of rolling force sensor |
| CN109813472A (en) * | 2019-03-14 | 2019-05-28 | 湖南道达宇科技有限公司 | A kind of embedded load sensor |
| CN109813472B (en) * | 2019-03-14 | 2023-11-24 | 衡通华创(北京)科技有限公司 | Embedded load sensor |
| CN112629732A (en) * | 2020-11-24 | 2021-04-09 | 湖南道达宇科技有限公司 | Embedded cable force sensor |
| CN112629732B (en) * | 2020-11-24 | 2022-08-26 | 衡通华创(北京)科技有限公司 | Embedded cable force sensor |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160413 |