CN201173835Y - Sensor for great force value test - Google Patents
Sensor for great force value test Download PDFInfo
- Publication number
- CN201173835Y CN201173835Y CNU2007201928944U CN200720192894U CN201173835Y CN 201173835 Y CN201173835 Y CN 201173835Y CN U2007201928944 U CNU2007201928944 U CN U2007201928944U CN 200720192894 U CN200720192894 U CN 200720192894U CN 201173835 Y CN201173835 Y CN 201173835Y
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- CN
- China
- Prior art keywords
- elastic body
- sensor
- force value
- stressed
- pressure head
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- Expired - Fee Related
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Abstract
The utility model relates to a sensor for testing vigorous value, which mainly comprises a squeeze head and a weighted elastic body. The weighted elastic body is provided with a group of blind holes along the diameter direction, a ring-shaped elastic body is mounted in each blind hole, strain foils are stuck on each ring-shaped elastic body, the strain foils are connected into a Wheatstone bridge and then are connected with cable connectors, cylinder blind holes for mounting bridge circuits and the cable connectors are arranged at the middle part of the weighted elastic body, a steel ball, a threaded rod and a smooth cylinder are arranged at the upper part of the ring-shaped elastic body, and a rolling needle is arranged at the lower part. The sensor for testing vigorous value has the advantages that firstly, the problem of the fabrication technology of a large-scale sensor is solved; secondly, unbalanced loading influence is minimum, azimuth error nearly does not exist; thirdly, the sensor for testing vigorous value has high performance, and the price is far lower than that of imported products.
Description
Technical field
The utility model relates to sensor field, mainly is a kind of sensor that is used for big force value tests.
Background technology
At present, the ratio equity that is worth energetically between the transmission of proof force value, calibrating, various countries is all carried out with inlet sensor, homemade large-scale sensor manufacturing process difficulty, and the unbalance loading influence is bigger, has bigger azimuthal error.
Summary of the invention
The utility model purpose is the shortcoming that will solve above-mentioned prior art, and a kind of sensor that is used for big force value tests is provided, and is a kind of embedded strain force cell, can be applicable to big force value tests.
The utility model solves the technical scheme that its technical matters adopts: this sensor that is used for big force value tests, mainly comprise pressure head and stressed elastic body, described stressed elastic body is provided with one group of blind hole along diametric(al), an annular elastic body respectively is housed in each blind hole, on each annular elastic body, be pasted with foil gauge, be connected with cable splice after connecting into Wheatstone bridge between the foil gauge, stressed elastic body middle part is provided with the blind cylindrical hole that is used to install electric-bridge circuit and cable splice; The elastomeric top of annular is provided with steel ball, screw rod and light cylinder, has needle roller.
The upper surface that stressed elastic body described in the utility model contacts with pressure head is the ball face, forms a cavity between the middle part of pressure head and the stressed elastic body.
Blind cylindrical hole described in the utility model lower end and the elastomeric blind hole of mounting circular ring shape are respectively equipped with first seal pad and second seal pad outward.
The effect that the utility model is useful is: 1. the difficulty that has solved large-scale sensor manufacturing process; 2. the unbalance loading influence is minimum, does not almost have azimuthal error.3. superior performance, price is far below imported product.
Description of drawings
Fig. 1 is a main TV structure synoptic diagram of the present utility model;
Fig. 2 is the sectional structure synoptic diagram of stressed elastomer portion of the present utility model;
Fig. 3 is the structural representation of annular elastomer portion of the present utility model;
Fig. 4 is the mounting structure synoptic diagram of annular elastomer portion of the present utility model;
Description of reference numerals: 1-pressure head, 2-light cylinder, the stressed elastic body of 3-, 4-screw rod, 5-steel ball, 6-annular elastic body, 7-needle roller 8-first seal pad, 9-blind cylindrical hole, 10-cable splice, 11-second seal pad, 12-cavity, 13-blind hole, 14-foil gauge.
Embodiment
Below in conjunction with accompanying drawing and concrete mode the utility model is described in further detail.
As shown in the figure, this sensor that is used for big force value tests mainly comprises pressure head 1 and stressed elastic body 3, and stressed elastic body 3 is stressed entity, loads by pressure head 1; The upper surface that stressed elastic body 3 contacts with pressure head 1 is the ball face, forms a cavity 12 between the middle part of pressure head 1 and the stressed elastic body 3, loads pressure head 1 concave spherical surface middle part and does not contact with protruding sphere middle part, stressed elastic body 3 upper ends.Described stressed elastic body 3 is provided with one group of blind hole 13 along diametric(al), and the blind hole number is that 3 or 4 multiple Figure 2 shows that 4, generally is no more than 8.The annular elastic body 6 of a thick about 2mm of ring respectively is housed in each blind hole 13, on each annular elastic body 6, is pasted with foil gauge 14, be connected with cable splice 10 after connecting into Wheatstone bridge between the foil gauge 14.Shrink slightly stressed elastic body 3 bottoms, the middle part is provided with the blind cylindrical hole 9 that is used to install electric-bridge circuit and cable splice 10, blind hole 13 outer first seal pads 8 and second seal pad, 11, the first seal pads 8 and second seal pad 11 of being respectively equipped with of blind cylindrical hole 9 lower ends and mounting circular ring shape elastic body 6 adopt welded seal.The top of annular elastic body 6 is provided with steel ball 5, screw rod 4 and light cylinder 2, has needle roller 7.
Principle of work: after the 3 stressed generations distortion of stressed elastic body, the distortion that forces annular elastic body 6 with it synchronously and output current or voltage signal, this signal is corresponding one by one with external force.Levels of precision by request for utilization links Wheatstone bridge.
In addition to the implementation, the utility model can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of the utility model requirement.
Claims (3)
1, a kind of sensor that is used for big force value tests, mainly comprise pressure head (1) and stressed elastic body (3), it is characterized in that: described stressed elastic body (3) is provided with one group of blind hole (13) along diametric(al), an annular elastic body (6) respectively is housed in each blind hole (13), on each annular elastic body (6), be pasted with foil gauge (14), be connected with cable splice (10) after connecting into Wheatstone bridge between the foil gauge (14), stressed elastic body (3) middle part is provided with the blind cylindrical hole (9) that is used to install electric-bridge circuit and cable splice (10); The top of annular elastic body (6) is provided with steel ball (5), screw rod (4) and light cylinder (2), has needle roller (7).
2, the sensor that is used for big force value tests according to claim 1 is characterized in that: the upper surface that described stressed elastic body (3) contacts with pressure head (1) is the ball face, forms a cavity (12) between the middle part of pressure head (1) and the stressed elastic body (3).
3, the sensor that is used for big force value tests according to claim 1 is characterized in that: outer first seal pad (8) and second seal pad (11) of being respectively equipped with of the blind hole (13) of described blind cylindrical hole (9) lower end and mounting circular ring shape elastic body (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201928944U CN201173835Y (en) | 2007-11-29 | 2007-11-29 | Sensor for great force value test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201928944U CN201173835Y (en) | 2007-11-29 | 2007-11-29 | Sensor for great force value test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201173835Y true CN201173835Y (en) | 2008-12-31 |
Family
ID=40200962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201928944U Expired - Fee Related CN201173835Y (en) | 2007-11-29 | 2007-11-29 | Sensor for great force value test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201173835Y (en) |
Cited By (3)
| 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 |
| CN103335749A (en) * | 2013-07-01 | 2013-10-02 | 赵铁军 | Screw rod type tension sensor |
| CN108692800A (en) * | 2017-03-31 | 2018-10-23 | 井关农机株式会社 | The grain Weight-measuring device of grain drier |
-
2007
- 2007-11-29 CN CNU2007201928944U patent/CN201173835Y/en not_active Expired - Fee Related
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 |
| CN103335749A (en) * | 2013-07-01 | 2013-10-02 | 赵铁军 | Screw rod type tension sensor |
| CN103335749B (en) * | 2013-07-01 | 2015-12-02 | 赵铁军 | Screw rod type tension sensor |
| CN108692800A (en) * | 2017-03-31 | 2018-10-23 | 井关农机株式会社 | The grain Weight-measuring device of grain drier |
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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: 20081231 Termination date: 20121129 |