CN202141504U - Pull-press type force cell sensor - Google Patents
Pull-press type force cell sensor Download PDFInfo
- Publication number
- CN202141504U CN202141504U CN 201120159626 CN201120159626U CN202141504U CN 202141504 U CN202141504 U CN 202141504U CN 201120159626 CN201120159626 CN 201120159626 CN 201120159626 U CN201120159626 U CN 201120159626U CN 202141504 U CN202141504 U CN 202141504U
- Authority
- CN
- China
- Prior art keywords
- cylinder
- neck
- tension
- cross
- compression 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 - Lifetime
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Classifications
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G3/00—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances
- G01G3/12—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances wherein the weighing element is in the form of a solid body stressed by pressure or tension during weighing
- G01G3/14—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances wherein the weighing element is in the form of a solid body stressed by pressure or tension during weighing measuring variations of electrical resistance
- G01G3/1402—Special supports with preselected places to mount the resistance strain gauges; Mounting of supports
- G01G3/1408—Special supports with preselected places to mount the resistance strain gauges; Mounting of supports the supports being of the column type, e.g. cylindric
Abstract
The utility model provides a pull-press type force cell sensor which includes a cylinder. The middle part of the cylinder is provided with two blind holes which are arranged in symmetry. The cylinder is provided with symmetrical necks relative to the blind holes along the length direction. The cylinder is provided with symmetrical connecting parts relative to the blind holes on the outer sides of the necks. The size of the neck is smaller than the diameter of the blind hole along the width direction. Because the blind holes are combined with the necks, no matter the sensor is pulled or pressed, a pulling force, or a pressure force acting on the sensor can be transferred to hole bottom walls of the blind holes via the necks to form a tension stress and a crushing stress. The pull-press type force cell sensor has the higher sensitivity compared with a conventional pulling plate force cell sensor, and the sensitivity is 3mV/V or above. Besides, the pull-press type force cell sensor has a low total height, a light weight, and an overload coefficient above 400%, thus according with the advantages of the C3 authentication of the OIML.
Description
Technical field
The utility model relates to the drawing and pressing type dynamometry of weighing.
Background technology
Traditional arm-tie force cell is a main body by cylinder, and the middle part of cylinder is provided with through hole, and respectively there is the connecting hole with respect to the through hole symmetry at the two ends of cylinder, and foil gauge is attached to the perisporium of through hole.This arm-tie force cell can be used for the drawing and pressing type dynamometry, and in order to obtain good sensitivity, overload factor, the length of this arm-tie force cell is long and heavy, nonetheless, its overload intensity only about 300%, precision can not be satisfactory.
Summary of the invention
The utility model technical matters to be solved provides a kind of tension and compression type load cell, improves precision, the overload intensity of traditional arm-tie force cell, reduces its weight.For this reason; The utility model adopts following technical scheme: it comprises cylinder; The middle part of said cylinder is provided with two blind holes of symmetry, and cylinder has the neck of symmetry in the longitudinal direction with respect to said blind hole, and cylinder has the web member of symmetry with respect to said blind hole in the outside of neck; On the cylinder Width, the neck size on the cylinder Width is less than the diameter of blind hole.
The foil gauge of said sensor is attached on the bottom surface, blind hole hole.
Said connector is the connector with the syndeton that can accept pulling force and pressure.
Said syndeton is hole, internal thread or external thread.
Said neck is served as reasons and perhaps cut the cross-sectional profile that forms all around at the symmetrical groove of the neck present position of cylinder cutting is circle, ellipse or the symmetrical polygonal neck of even number.
Said neck cross section profile is circular, oval or symmetrical even number polygon.
The cross-sectional profile of said cylinder is circular, oval or symmetrical even number polygon.
Owing to adopt the technical scheme of the utility model; The combination of blind hole and neck, no matter what make sensor stressedly is pressurized or is drawn that pulling force, pressure all are delivered on the diapire of blind hole hole through neck; Form tension, compressive stress; Have than traditional arm-tie force cell high sensitivity more, 3mV/ V or more than, overall height little in light weight, surpass 400% overload factor, meet the advantage of the C3 authentication of OIML.
Description of drawings
Fig. 1 is the front view of the embodiment 1 that the utility model provided.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the front view of the embodiment 2 that the utility model provided.
Fig. 4 is the front view of the embodiment 3 that the utility model provided.
Fig. 5 is the front view of the embodiment 4 that the utility model provided.
Fig. 6 a is one of viewgraph of cross-section of square cylinder neck.
Fig. 6 b is one of viewgraph of cross-section of square cylinder neck.
Fig. 6 c is one of viewgraph of cross-section of square cylinder neck.
Fig. 6 d is one of viewgraph of cross-section of square cylinder neck.
Fig. 7 a is one of viewgraph of cross-section of circular cylinder neck.
Fig. 7 b is one of viewgraph of cross-section of circular cylinder neck.
Fig. 7 c is one of viewgraph of cross-section of circular cylinder neck.
Fig. 7 d is one of viewgraph of cross-section of circular cylinder neck.
Fig. 8 a is one of viewgraph of cross-section of elliptic cylindrical neck.
Fig. 8 b is one of viewgraph of cross-section of elliptic cylindrical neck.
Fig. 8 c is one of viewgraph of cross-section of elliptic cylindrical neck.
Fig. 8 d is one of viewgraph of cross-section of elliptic cylindrical neck.
Fig. 9 a is one of viewgraph of cross-section of hexagon cylinder neck.
Fig. 9 b is one of viewgraph of cross-section of hexagon cylinder neck.
Fig. 9 c is one of viewgraph of cross-section of hexagon cylinder neck.
Fig. 9 d is one of viewgraph of cross-section of hexagon cylinder neck.
Embodiment
Embodiment 1, with reference to Fig. 1,2.
The utility model comprises cylinder C; The middle part of said cylinder is provided with two blind holes 11,12 of symmetry; Cylinder C has the neck 21,22 of symmetry in the longitudinal direction with respect to said blind hole 11,12, connector 41-1,41-2 that cylinder C has symmetry in the outside of neck 21,22 with respect to said blind hole, and said connector is the connector with the syndeton that can accept pulling force and pressure; In the present embodiment, said syndeton is hole H.Neck size on cylinder C Width is less than the diameter of blind hole 11,12.
The foil gauge 5 of said sensor is attached on the bottom surface, blind hole hole 3.
Shown in Fig. 1, Fig. 6 a-6d, 7a-7d, 8a-8d, 9a-9d, said neck is circular, oval or the symmetrical polygonal neck of even number by the cross-sectional profile that groove 6 or cutting in the neck present position of cylinder cutting symmetry form all around.Said neck cross section profile is circular, oval or symmetrical even number polygon.When the cross-sectional profile of cylinder was square, the cross-sectional profile of neck was square 23-4, circular 23-1, oval 23-2 or other symmetrical even number of sides polygon 23-3, such as hexagon; When the cross-sectional profile of cylinder was circle, the cross-sectional profile of neck was square 24-4, circular 24-1, oval 24-2 or other symmetrical even number of sides polygon 24-3; When the cross-sectional profile of cylinder was ellipse, the cross-sectional profile of neck was square 25-4, circular 25-1, oval 25-2 or other symmetrical even number of sides polygon 25-3.When the cross-sectional profile of cylinder was the polygon of symmetry, the cross-sectional profile of neck was square 26-4, circular 26-1, oval 26-2 or other symmetrical even number of sides polygon 26-3.
Embodiment 2, with reference to Fig. 3.
In the present embodiment, the syndeton in the said connector is internal thread 42-1,42-2.Other structure of present embodiment is identical with embodiment 1.
Embodiment 3, with reference to Fig. 4
In the present embodiment, the syndeton in the said connector is external thread 43-1,43-2.Other structure of present embodiment is identical with embodiment 1.
Embodiment 4, with reference to Fig. 5
In the present embodiment, the syndeton in the said connector is spheroid 44-1, perhaps other can form the stressed syndeton of tension and compression to 44-2.Other structure of present embodiment is identical with embodiment 1.
Claims (7)
1. tension and compression type load cell; Comprise cylinder; It is characterized in that the middle part of said cylinder is provided with two blind holes of symmetry; Cylinder has the neck of symmetry in the longitudinal direction with respect to said blind hole, the connector that cylinder has symmetry in the outside of neck with respect to said blind hole, and the neck size on the cylinder Width is less than the diameter of blind hole.
2. tension and compression type load cell as claimed in claim 1 is characterized in that the foil gauge of said sensor is attached on the bottom surface, blind hole hole.
3. tension and compression type load cell as claimed in claim 1 is characterized in that said connector is the connector with the syndeton that can accept pulling force and pressure.
4. tension and compression type load cell as claimed in claim 3 is characterized in that said syndeton is hole, internal thread or external thread.
5. tension and compression type load cell as claimed in claim 1 is characterized in that the said neck cross-sectional profile that around the groove of the neck present position of cylinder cutting symmetry or cutting, forms of serving as reasons is circular, oval or the symmetrical polygonal neck of even number.
6. tension and compression type load cell as claimed in claim 3 is characterized in that said neck cross section profile is circular, oval or symmetrical even number polygon.
7. like claim 1,2,3,4,5 or 6 described tension and compression type load cells, it is characterized in that the cross-sectional profile of said cylinder is circular, oval or symmetrical even number polygon.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120159626 CN202141504U (en) | 2011-05-18 | 2011-05-18 | Pull-press type force cell sensor |
| PCT/CN2012/072689 WO2012155655A1 (en) | 2011-05-18 | 2012-03-21 | High precision stretching force sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120159626 CN202141504U (en) | 2011-05-18 | 2011-05-18 | Pull-press type force cell sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202141504U true CN202141504U (en) | 2012-02-08 |
Family
ID=45552559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120159626 Expired - Lifetime CN202141504U (en) | 2011-05-18 | 2011-05-18 | Pull-press type force cell sensor |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN202141504U (en) |
| WO (1) | WO2012155655A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012155655A1 (en) * | 2011-05-18 | 2012-11-22 | 永正传感(杭州)有限公司 | High precision stretching force sensor |
| CN102944343A (en) * | 2012-11-09 | 2013-02-27 | 辽宁工业大学 | Overload protection device for tension and pressure sensor |
| CN104374497A (en) * | 2014-11-20 | 2015-02-25 | 上海交通大学 | Bidirectional force-measurement sensor system |
| CN105004454A (en) * | 2015-05-25 | 2015-10-28 | 南京航空航天大学 | Heavy-load single-component sensor and measuring method |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103323155B (en) * | 2013-05-31 | 2016-04-20 | 李建华 | Container Special pull sensor and system |
| CN106441651A (en) * | 2016-12-09 | 2017-02-22 | 李�诚 | Measuring device for pressure of railway vehicle |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201116884Y (en) * | 2007-11-20 | 2008-09-17 | 杭州恒联电测仪器有限公司 | Hanging type weighing sensor |
| CN201535691U (en) * | 2009-06-25 | 2010-07-28 | 永正传感(杭州)有限公司 | Pull type weighing and force measuring sensor and press type weighing and force measuring sensor |
| CN101706313A (en) * | 2009-11-27 | 2010-05-12 | 广东南方衡器厂有限公司 | Weighing sensor elastomer |
| CN201637468U (en) * | 2010-01-06 | 2010-11-17 | 宁波博达电气有限公司 | Bearing pedestal weight sensor |
| CN202141504U (en) * | 2011-05-18 | 2012-02-08 | 永正传感(杭州)有限公司 | Pull-press type force cell sensor |
-
2011
- 2011-05-18 CN CN 201120159626 patent/CN202141504U/en not_active Expired - Lifetime
-
2012
- 2012-03-21 WO PCT/CN2012/072689 patent/WO2012155655A1/en active Application Filing
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012155655A1 (en) * | 2011-05-18 | 2012-11-22 | 永正传感(杭州)有限公司 | High precision stretching force sensor |
| CN102944343A (en) * | 2012-11-09 | 2013-02-27 | 辽宁工业大学 | Overload protection device for tension and pressure sensor |
| CN102944343B (en) * | 2012-11-09 | 2014-07-30 | 辽宁工业大学 | Overload protection device for tension and pressure sensor |
| CN104374497A (en) * | 2014-11-20 | 2015-02-25 | 上海交通大学 | Bidirectional force-measurement sensor system |
| CN105004454A (en) * | 2015-05-25 | 2015-10-28 | 南京航空航天大学 | Heavy-load single-component sensor and measuring method |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2012155655A1 (en) | 2012-11-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120208 |