CN207730364U - A kind of shaft-penetrating type tension detector - Google Patents
A kind of shaft-penetrating type tension detector Download PDFInfo
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- CN207730364U CN207730364U CN201820134631.6U CN201820134631U CN207730364U CN 207730364 U CN207730364 U CN 207730364U CN 201820134631 U CN201820134631 U CN 201820134631U CN 207730364 U CN207730364 U CN 207730364U
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- hall element
- tension
- reed
- detector
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Abstract
Disclosed by the utility model is a kind of shaft-penetrating type tension detector,Including detector body,It is characterized in that,Reed is equipped in the detector body,One end of the reed is known as fixing end,The fixing end is connect with detector body,The other end of the reed is known as test side,The test side is equipped with two permanent magnets for being used for establishing same polarity opposition magnetic field,The center of effort hole for the guide roller axis for being used for installing detection tension is equipped between the fixing end and test side,Hall element is housed between two permanent magnets,The Hall element will export corresponding analog quantity voltage signal when causing magnetic field to shift when under tension according to reed,Detection using linear hall element as tension value,The function of the Hall element is to export corresponding analog quantity voltage signal according to the magnetic field power that it is sensed,To realize the purpose of tension value measurement,Long lifespan is using the advantages of linear hall element,It is small,Install and debug simple and convenient feature.
Description
Technical field
The utility model is related to a kind of tension detectors, more particularly to be it is a kind of using linear hall element as tension
The tension detector of detection.
Background technology
Tension detector is a kind of instrument that can measure web tension value size, currently on the market according to contour structures
Difference is roughly divided into three kinds：Axis platform formula, shaft-penetrating type and cantilevered, function are just as to detect the real-time strain of coiled material,
Application scenario is only different using the tension detector for being more suitable for their contour structures.These tension detectors can be transported in coiled material
The Tensity size of coiled material is measured when row in real time and is converted and is exported in corresponding analog quantity voltage or current signal, which can
By the reception such as automatic tension controller or PLC controller and as the tension feedback signal controlled coiled material automatic tension, thus
It realizes and the automatic constant tension of coiled material is controlled.Inside tension detector currently on the market mainly using resistance strain plate formula or
Detection of person's differential type inductance coil structure as tension value.No matter resistance-strain type or difference induction coil type or the present invention
Linear hall element as the detection of tension, measurement accuracy is all quite high, and cost is also not much different, but resistance-strain chip
The installation and debugging process that structure is related in process of production are more complicated cumbersome, and the volume of difference induction coil type is bigger,
It is very difficult to apply in small-sized tension detector.
Utility model content
In view of background technology, the technical problem to be solved by the present invention is to provide a kind of shaft-penetrating types
Tension detector, it is internal to use detection of the linear hall element as tension value.
In order to solve the above-mentioned technical problem, the utility model adopts the following technical scheme that realize：A kind of shaft-penetrating type
Tension detector, including detector body, which is characterized in that reed, one end of the reed are equipped in the detector body
Referred to as fixing end, the fixing end are connect with detector body, and the other end of the reed is known as test side, and the test side is set
There are two permanent magnets for being used for establishing same polarity opposition magnetic field, is equipped between the fixing end and test side and is used for that detection is installed
The center of effort hole of the guide roller axis of tension is equipped with Hall element between two permanent magnets, and the Hall element is according to spring
Corresponding analog quantity voltage signal will be exported when causing magnetic field to shift when piece is under tension.
The Hall element uses linear hall element, the linear hall element to be used for the detection of tension.
It further include the potentiometer of the zero-bit for adjusting output signal.
The detector body is equipped with four mounting holes for fixed detector main body.
The utility model has the beneficial effects that：Detection using linear hall element as tension value, the Hall element
Function is to export corresponding analog quantity voltage signal according to the magnetic field power that it is sensed, to realize the mesh of tension value measurement
, using the advantages of linear hall element be long lifespan, it is small, install and debug simple and convenient feature.
Description of the drawings
Fig. 1 is utility model works schematic diagram；
Fig. 2 is the utility model internal structure schematic diagram；
Fig. 3 is the utility model circuit diagram.
In figure, 1, detector body, 2, reed, 21, fixing end, 22, test side, 3, permanent magnet, 4, Hall element, 5,
Center of effort hole, 6, coiled material, 7, deflector roll, 8, tension controller.
Specific implementation mode
As shown in Figure 1, coiled material 6 passes through three deflector rolls 7, the installation site of front and back two deflector rolls makes less than intermediate deflector roll
When coiled material is by intermediate deflector roll, the tension of coiled material can make intermediate deflector roll generate downward pressure, the both ends of intermediate guide roller axis
It is separately installed with tension detector, which will be transmitted on tension detector, and the size of pressure is converted by tension detector
Corresponding voltage signal, to realize that the measurement to web tension size detects, tension controller 8 carries out automatic tension to coiled material
When control, the feedback of tension is done by the voltage signal to realize automatic constant tension control.
As shown in Fig. 2 structures, the 21 connecting detection device main body 1 of reed fixing end of the shaft-penetrating type tension detector works as stress
Centre bore can be made reed 2 also generate different degrees of bending by different degrees of force effect, be equipped with two permanent magnets 3 at this time
The other end, that is, test side 22 can be displaced, Hall element 4 be installed in detector body 1 and be located at two permanent magnets
3 centre, when permanent magnet 3 shifts, Hall element 4 has deflected away from the center of this two permanent magnets 3, to keep Hall first
The magnetic field power that 4 front and back of part senses changes, since the magnetic field of induction changes, so Hall element also will
Corresponding variable quantity analog quantity voltage signal is exported, to realize the purpose of tension detection.
As shown in figure 3, linear hall element output is differential type analog signals, which carries out through operational amplifier
Voltage amplification and two triodes carry out Current amplifier, then export analog quantity voltage signal by the ends B1 and B2.It is set in the circuit
In meter, the output analog signals of the Hall element carry out zero-bit amendment by potentiometer, that is, use potentiometer W1 to Hall member
The output differential wave of part carries out zero-bit amendment, can solve Hall element so during the installation process if not in magnetic field center
When, cause output analog signals not the zero-bit the problem of, which solves tension detector zero-bit in scheduling and planning
It is difficult to the problem calibrated.
Claims (3)
1. a kind of shaft-penetrating type tension detector, including detector body（1）, which is characterized in that the detector body（1）In set
There is reed（2）, the reed（2）One end be known as fixing end（21）, the fixing end（21）With detector body（1）Connection,
The reed（2）The other end be known as test side（22）, the test side（22）It is used for establishing same polarity opposition magnetic equipped with two
The permanent magnet of field（3）, the fixing end（21）The test side and（22）Between be equipped with the guide roller axis for being used for installing detection tension
Center of effort hole（5）, two permanent magnets（3）Between be equipped with Hall element（4）, the Hall element according to reed by
Corresponding analog quantity voltage signal will be exported when causing magnetic field to shift when tension force effect.
2. a kind of shaft-penetrating type tension detector according to claim 1, which is characterized in that the Hall element（4）Using
Linear hall element, the linear hall element are used for the detection of tension.
3. a kind of shaft-penetrating type tension detector according to claim 1, which is characterized in that further include for adjusting output letter
Number zero-bit potentiometer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820134631.6U CN207730364U (en) | 2018-01-26 | 2018-01-26 | A kind of shaft-penetrating type tension detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820134631.6U CN207730364U (en) | 2018-01-26 | 2018-01-26 | A kind of shaft-penetrating type tension detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207730364U true CN207730364U (en) | 2018-08-14 |
Family
ID=63081804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820134631.6U Active CN207730364U (en) | 2018-01-26 | 2018-01-26 | A kind of shaft-penetrating type tension detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207730364U (en) |
-
2018
- 2018-01-26 CN CN201820134631.6U patent/CN207730364U/en active Active
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