CN201003996Y - Strain detection device - Google Patents
Strain detection device Download PDFInfo
- Publication number
- CN201003996Y CN201003996Y CNU200720066950XU CN200720066950U CN201003996Y CN 201003996 Y CN201003996 Y CN 201003996Y CN U200720066950X U CNU200720066950X U CN U200720066950XU CN 200720066950 U CN200720066950 U CN 200720066950U CN 201003996 Y CN201003996 Y CN 201003996Y
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- CN
- China
- Prior art keywords
- self
- detecting apparatus
- tension detecting
- aligning bearing
- shape elastic
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- Expired - Lifetime
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Abstract
The utility model relates to a tension detecting device which comprises a self-aligning bearing whose inner circle is connected with a measuring roll, two earring shaped elastic objects whose one end is connected with the outer circle of the self-aligning bearing while the other end is connected with a shell and two strain foils are arranged on the inner side of the resistance each earring shaped elastic objects, the strain foils are connected with Wheatstone bridge method. The minor shift of the self-aligning bearing occurs bigger shape change on the earring shaped elastic objects and simultaneously because the two earring shape elastic objects bear the opposite directions, the strain foils which are organized with the Wheatstone theory output double signal; thereby, the response speed is fast, the measuring roll is hardly mismatched and the precision is greatly high.
Description
Technical field
The utility model relates to a kind of tension detecting apparatus that sheet carrying material on the production line is detected.
Background technology
Sheet carrying material tension force on the existing production line detects main piezomagnetic detecting device and the beam type detecting device of adopting.
The general structure of piezomagnetic detecting device is: four main bodys such as upper plate, lower plate, magnetic core stick, magnetic induction loop, wherein magnetic core stick and upper plate connection, magnetic induction loop and lower plate connect, magnetic core stick is being inserted magnetic induction loop, upper and lower plates connects with resilient material (as spring or elastic plate), lower plate is fixed up again; When upper plate is stressed, can be with plug to move down, thereby magnetic core stick will produce electric signal output with the magnetic induction loop relative motion like this.The shortcoming of this detecting device: response speed is slow, precision is low, especially accurate test material tension force on the higher production line of on-line velocity.
The general structure of beam type detecting device is: applying ohmer in the middle of the strip resilient material; The one end is fixed, and the middle part will deformation when the other end is stressed, drives ohmer deformation, thus the output electric signal.The shortcoming of this detecting device is: precision is low, overload factor is little, the tension force cross-sectional distribution and the trend of destruction material thereby the dynamometry roller walks.
Summary of the invention
The purpose of this utility model provides a kind of precision height, the fast tension detecting apparatus of reaction velocity.
The purpose of this utility model is achieved through the following technical solutions:
A kind of tension detecting apparatus, it comprises:
One self-aligning bearing, its inner ring links to each other with a dynamometry roller;
Two earrings shape elastic bodys, the one end links to each other with the outer ring of this self-aligning bearing, and the other end links to each other with a housing, and each earrings shape elastic body inboard is provided with two resistance strain gages, and this resistance strain gage connects in Hui Sitong full-bridge mode.
Wherein, the elastomeric circle center line connecting direction of this earrings shape and this edge-on roller is subjected to force direction identical.
Wherein, also be provided with on this self-aligning bearing outer ring with this shell on two ear platforms fastening of a pair of groove.
Wherein, this ear platform all is connected with the outer ring of this self-aligning bearing by a bearing race snap with this earrings shape elastic body.
Wherein, the power lead of this favour Stone circuit links to each other with power supply and signal output apparatus by the outer output interface of this housing with output signal line.
Wherein, in these outside both sides, this residing position of earrings shape elastic body is respectively arranged with an interior plate and an outer panel.
Positive progressive effect of the present utility model is:
The micro-displacement of self-aligning bearing will produce on earrings shape elastic body than large deformation, stressed oppositely because of two ring-like elastic bodys simultaneously, resistance strain gage with Hui Sitong full-bridge principle tissue will output signal double, and fast, the dynamometry roller of response speed walks hardly like this, and precision is high.
Description of drawings
Fig. 1 is the structural representation of the utility model preferred embodiment.
Fig. 2 is that the A-A of Fig. 1 is to left view.
Fig. 3 is the synoptic diagram under the utility model user mode.
Fig. 4 is the electrical schematic diagram of the utility model tension detecting apparatus.
Embodiment
Provide the utility model preferred embodiment below in conjunction with accompanying drawing, to describe the technical solution of the utility model in detail.
A kind of tension detecting apparatus, it comprises: earrings shape elastic body 1,4, housing 2, ear platform 3,5, output interface 6, self-aligning bearing 7, interior plate 8, outer panel 9.
Wherein the inner ring of this self-aligning bearing 7 generally is connected with a dynamometry roller 10, and the outer ring is connected with this housing 2.Wherein the inner ring of this self-aligning bearing 7 generally is connected with a dynamometry roller 10, matches with bearing race snap 8 in the outer ring, and bearing race snap 8 is connected with ear platform 3,5, and is connected as a whole by this earrings shape elastic body 1,4 with housing 2.These earrings shape elastic body 1,4 tops are connected with housing, and the lower end is connected with bearing race snap 8, and both sides and housing 2 adopt the line cutting and separating.
Utility appliance when dynamometry roller 10 uses for this tension detecting apparatus guarantees that the pressure of sheet carrying material acts on this tension detecting apparatus fully.
Wherein each earrings shape elastic body 1,4 inboard respectively sticker two groups of resistance strain gages 11,41 are arranged, and compensate with Hui Sitong full-bridge tissue, four sheet resistance foil gauges 11,41 minutes place the elastomeric inboard of earrings shape respectively for two groups, and 11,41 pairs of pressure of resistance strain gage and pulling force all have equal induction; Four foil gauges are formed the Hui Sitong full-bridge, be in equilibrium state when not using, when the stressed generation micro-displacement of self-aligning bearing 7, drive 1,4 deformation of earrings shape elastic body, the resistance of resistance strain gage 11,41 changes, this strain full-bridge out of trim and export difference voltage, i.e. sensor output voltage signal.
The power lead of wherein above-mentioned favour Stone circuit and feedback signal line respectively the different pins by output interface 6 be connected power supply and signal output apparatus and be electrically connected.Wherein direction is consistent in the hand of the circle center line connecting direction of this two earrings shape elastic body 1,4 and this dynamometry roller, and the center line connecting direction of this ear platform 3,5 is then perpendicular with the circle center line connecting direction of this two earrings shape elastic body 1,4.
The annular distance diameter D of earrings shape elastic body 1,4 is 15mm～35mm, and wall thickness is 2mm～5mm.
Thickness H, the width S of earrings shape elastic body 1,4 are H=S=8mm～13mm; The gap of its middle ear platform 3,5 and housing 2 is 2～4 μ m.
During use, tension force along the circle center line connecting directive effect of earrings shape elastic body 1,4 in self-aligning bearing 7, endless elastomeric 1,4 will produce miniature deformation, one of them is subjected to pulling force, and another is stressed, then two groups of electronics foil gauges forming with the Hui Sitong principle can because of the elastomeric deformation of earrings make dynamometry roller 10 be subjected to identical size power do the time spent can obtain double voltage signal in existing detector output signal; If stressed this Design of device rated load that surpasses, ear platform 3,5 will rigidity touch housing 2, endless elastomeric 1,4 is unloaded, limits the further deformation of endless elastomeric 1,4, thereby reach overload protection function.Interior plate, outer panel 9,10 be in this Unit Installation fixedly the time, and protection earrings shape elastic body 1,4 is subjected to load and is not subjected to external intervention when deformation takes place.
Claims (6)
1, a kind of tension detecting apparatus is characterized by, and it comprises:
One self-aligning bearing, its inner ring links to each other with a dynamometry roller;
Two earrings shape elastic bodys, the one end links to each other with the outer ring of this self-aligning bearing, and the other end links to each other with a housing, and each earrings shape elastic body inboard is provided with two resistance strain gages, and this resistance strain gage connects in Hui Sitong full-bridge mode.
2, tension detecting apparatus according to claim 1 is characterized by, and the elastomeric circle center line connecting direction of this earrings shape is subjected to force direction identical with this edge-on roller.
3, tension detecting apparatus according to claim 1 and 2 is characterized by, also be provided with on this self-aligning bearing outer ring with this shell on two ear platforms fastening of a pair of groove.
4, tension detecting apparatus according to claim 3 is characterized by, and this ear platform all is connected with the outer ring of this self-aligning bearing by a bearing race snap with this earrings shape elastic body.
5, tension detecting apparatus according to claim 1 and 2 is characterized by, and the power lead of this favour Stone circuit links to each other with power supply and signal output apparatus by the outer output interface of this housing with output signal line.
6, tension detecting apparatus according to claim 1 and 2 is characterized by, and in these outside both sides, this residing position of earrings shape elastic body is respectively arranged with an interior plate and an outer panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720066950XU CN201003996Y (en) | 2007-02-02 | 2007-02-02 | Strain detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720066950XU CN201003996Y (en) | 2007-02-02 | 2007-02-02 | Strain detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201003996Y true CN201003996Y (en) | 2008-01-09 |
Family
ID=39039536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200720066950XU Expired - Lifetime CN201003996Y (en) | 2007-02-02 | 2007-02-02 | Strain detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201003996Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106525313A (en) * | 2016-12-30 | 2017-03-22 | 安徽中航电子科技发展有限公司 | Through shaft type tension sensor |
| CN107238453A (en) * | 2017-06-29 | 2017-10-10 | 太仓市荣驰电机有限公司 | A kind of device for pressure measurement |
| CN108474701A (en) * | 2016-01-25 | 2018-08-31 | 三菱电机株式会社 | Detectors of load |
| CN111895964A (en) * | 2020-07-22 | 2020-11-06 | 北京帕尔普线路器材有限公司 | Monitoring front end and monitoring device for power transmission line |
-
2007
- 2007-02-02 CN CNU200720066950XU patent/CN201003996Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108474701A (en) * | 2016-01-25 | 2018-08-31 | 三菱电机株式会社 | Detectors of load |
| CN106525313A (en) * | 2016-12-30 | 2017-03-22 | 安徽中航电子科技发展有限公司 | Through shaft type tension sensor |
| CN107238453A (en) * | 2017-06-29 | 2017-10-10 | 太仓市荣驰电机有限公司 | A kind of device for pressure measurement |
| CN111895964A (en) * | 2020-07-22 | 2020-11-06 | 北京帕尔普线路器材有限公司 | Monitoring front end and monitoring device for power transmission line |
| CN111895964B (en) * | 2020-07-22 | 2022-02-18 | 北京帕尔普线路器材有限公司 | Monitoring front end and monitoring device for power transmission line |
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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 |
Granted publication date: 20080109 |
|
| CX01 | Expiry of patent term |