CN108759651A - The magnet mounting structure of magnet type clearance measurement system and clearance measurement system - Google Patents
The magnet mounting structure of magnet type clearance measurement system and clearance measurement system Download PDFInfo
- Publication number
- CN108759651A CN108759651A CN201810602305.8A CN201810602305A CN108759651A CN 108759651 A CN108759651 A CN 108759651A CN 201810602305 A CN201810602305 A CN 201810602305A CN 108759651 A CN108759651 A CN 108759651A
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- Prior art keywords
- magnet
- measurement system
- magnets
- clearance measurement
- accommodating chamber
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- 238000005259 measurement Methods 0.000 title claims abstract description 45
- 238000009434 installation Methods 0.000 claims abstract description 18
- 238000011109 contamination Methods 0.000 abstract description 3
- 239000000428 dust Substances 0.000 abstract description 3
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 17
- 238000006073 displacement reaction Methods 0.000 description 7
- 230000005389 magnetism Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 210000002421 cell wall Anatomy 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000007405 data analysis Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000010358 mechanical oscillation Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/14—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring distance or clearance between spaced objects or spaced apertures
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
The present invention relates to a kind of magnet type clearance measurement system and the magnet mounting structures of clearance measurement system.Magnet type clearance measurement system includes spaced two magnets, two magnet homopolarities are positioned opposite, two mounting bases for further including two magnets of corresponding installation and the pressure sensor for measuring the repulsion between two magnets, the accommodating chamber for accommodating corresponding magnet is respectively provided in two mounting bases, the opposite end face of two magnets is respectively with the plane where the accent of corresponding accommodating chamber concordantly or positioned at the inside of corresponding accommodating chamber, pressure sensor is set on sensor installation seat and between the magnet and the bottom of chamber of accommodating chamber, mounting base is formed by measured piece or sensor installation seat.Two magnets are separately positioned in accommodating chamber, it is possible to reduce the space between the gap that two magnets occupy, while accommodating chamber forms magnet and protects, and reduces the dust of magnet surface contamination, ensures the accuracy of measurement result.
Description
Technical field
The present invention relates to a kind of magnet type clearance measurement system and the magnet mounting structures of clearance measurement system.
Background technology
Many equipment are required for keeping the stabilization of relative distance, such as moving for air preheater during normal operation
Quiet contact surface sealing station etc., and during long-term use, due to mechanical oscillation etc., the sound of air preheater connects
The distance between contacting surface changes, and timing is needed to monitor and measure its distance to ensure the normal operation of equipment.
Application publication number is CN105783689A, and data of publication of application is that the Chinese invention patent application of 2016.07.20 discloses
A kind of non-contact type magnetic force piezoelectric type displacement sensor, the non-contact type magnetic force piezoelectric type displacement sensor include the first permanent magnetism
Body and with spaced second permanent magnet of the first permanent magnet, the first permanent magnet is oppositely arranged with the second permanent magnet homopolarity, second
The one end of permanent magnet far from the first permanent magnet is equipped with piezoelectric element, and the first permanent magnet is fixed by the bracket in the first measured piece
On, the second permanent magnet is directly anchored on piezoelectric element or is connected on the piezoelectric element by modes such as holder, gaskets, piezoelectricity member
Part is arranged on the second measured piece.
Above-mentioned non-contact type magnetic force piezoelectric type displacement sensor when in use, utilizes the repulsion of magnet homopolarity and piezoelectric element
The principle that is combined of piezoelectric effect, the first permanent magnet and the second permanent magnet are separately positioned on two measured pieces, are measured
Displacement between part can numerically be such that the first permanent magnet has at a distance from opposite between the second permanent magnet at some, to generate
Corresponding repulsive force, the repulsive force act on the piezoelectric element, and piezoelectric element exports corresponding voltage signal, passes through data analysis
Tested displacement is can be obtained, realizes displacement signal to electric signal by the quantitative relationship between distance, repulsive force, voltage signal
Transformation, to measure the distance between two measured pieces.But the non-contact type magnetic force piezoelectric type displacement sensor need by
Two permanent magnets are arranged on holder, it is desirable that the installation space with mounting bracket between two measured pieces is tested when two
Gap between amount part it is smaller and when being not enough to mounting bracket and two permanent magnets, which passes
Sensor is inconvenient for use, simultaneously because it is naked state that permanent magnet, which is arranged on holder, the working environment of the equipment such as Roller grinder is poor,
Impurity in air is liable to stick on permanent magnet and influences the accuracy of range measurement.
Invention content
The purpose of the present invention is to provide a kind of magnet type clearance measurement systems, to solve measuring system in the prior art
It is inconvenient for use when measurement gap is smaller, while permanent magnet is naked state, impurity is liable to stick on permanent magnet and influences to survey
The problem of accuracy of amount；The present invention also provides a kind of magnet mounting structures of clearance measurement system.
In order to solve the above-mentioned technical problem, the technical solution of the magnet mounting structure of clearance measurement system of the invention is：
The magnet mounting structure of clearance measurement system, including spaced two magnets, two magnet homopolarities are positioned opposite, also
Include two mounting bases of two magnets of corresponding installation, is respectively provided in described two mounting bases and accommodates corresponding magnet
Accommodating chamber, the opposite end face of described two magnets is respectively with the plane where the accent of corresponding accommodating chamber concordantly or positioned at phase
The inside for the accommodating chamber answered.
The advantageous effect of the technical solution is：Two magnets are separately positioned in accommodating chamber, it is possible to reduce two magnets
Space between the gap of occupancy, while accommodating chamber forms magnet and protects, and reduces the dust of magnet surface contamination, ensures to measure
As a result accuracy, while generating collision between avoiding gap from becoming two magnets of hour and damaging magnet.
There is interval between the magnet and the cavity wall of accommodating chamber.Interval is installed convenient for magnet, while being also allowed for magnet and being existed
Small movement is done on the action direction of magnetic force.
The magnet is permanent magnet.Permanent magnet is easy to use.
The technical solution of magnet type clearance measurement system of the present invention is：
Magnet type clearance measurement system, including spaced two magnets, two magnet homopolarities are positioned opposite, further include corresponding to
Two mounting bases for installing two magnets and the pressure sensor for measuring the repulsion between two magnets, described two installations
The accommodating chamber for accommodating corresponding magnet is respectively provided on seat, the opposite end face of described two magnets holds with corresponding respectively
The plane received where the accent of chamber is concordant or positioned at the inside of corresponding accommodating chamber, and the pressure sensor is set to sensor installation
On seat and between the magnet and the bottom of chamber of accommodating chamber, the mounting base is formed by measured piece or sensor installation seat.
The advantageous effect of the technical solution is：Two magnets are separately positioned in accommodating chamber, it is possible to reduce two magnets
Space between the gap of occupancy, while accommodating chamber forms magnet and protects, and reduces the dust of magnet surface contamination, ensures to measure
As a result accuracy, while generating collision between avoiding gap from becoming two magnets of hour and damaging magnet.
There is interval between the magnet and the cavity wall of accommodating chamber.Interval is installed convenient for magnet, while being also allowed for magnet and being existed
Small movement is done on the action direction of magnetic force.
The magnet is permanent magnet.Permanent magnet is easy to use.
The pressure sensor is respectively equipped between described two magnets and the bottom of chamber of accommodating chamber.Two pressure sensors can
With comparison of checking one against another, the accuracy of measurement result is improved.
The area of the pressure sensor is less than the area of the bottom of chamber of accommodating chamber.Avoid cavity wall in deformation to pressure sensing
It acts power and influences the accuracy of measurement result.
The magnet type clearance measurement system further includes the terminal board being connect with the pressure sensor and connects with terminal board
The host connect.Pressure signal can be switched to electric signal and be read for host by terminal board, simple to operate.
Description of the drawings
Fig. 1 is the structural schematic diagram of the embodiment 1 of the magnet type clearance measurement system of the present invention；
Fig. 2 is the structural schematic diagram of the embodiment 2 of the magnet type clearance measurement system of the present invention.
It is respectively marked in figure：1. the first measured piece；2. the second measured piece；3. the first permanent magnet；4. the second permanent magnet；5.
First pressure sensor；6. second pressure sensor；7. terminal board；8. host；9. holding tank.
Specific implementation mode
The present invention magnet type clearance measurement system embodiment 1 as shown in Figure 1, include spaced two magnets,
Two magnet homopolarities are positioned opposite, and in the present embodiment, two magnets are permanent magnet, and two permanent magnets are respectively the first permanent magnetism
Body 3 and the second permanent magnet 4, permanent magnet is easy to use；In other embodiments, two magnets may be electromagnet.
Magnet type clearance measurement system further includes the mounting base for two magnets of corresponding installation, is distinguished in two mounting bases
Equipped with the accommodating chamber for accommodating corresponding magnet.In the present embodiment, two measured pieces to be detected are respectively the first quilt
It is opposite that the corresponding position of measuring piece 1 and the second measured piece 2, the first measured piece 1 and the second measured piece 2 is equipped with opening
Holding tank 9, holding tank 9 form the accommodating chamber for accommodating permanent magnet, and the first measured piece 1 and the second measured piece 2 distinguish shape
At the mounting base for installing the first permanent magnet 3 and the second permanent magnet 4, the first permanent magnet 3 is set to the receiving of the first measured piece 1
In slot 9, the second permanent magnet 4 is set in the holding tank 9 of the second measured piece 2.First permanent magnet 3, the second permanent magnet 4 and holding tank
There is interval between 9 cell wall, installed convenient for magnet, while also allowing for magnet and doing small shifting on the action direction of magnetic force
It is dynamic.
First permanent magnet 3 end face opposite with the second permanent magnet 4 is located at the inside of corresponding holding tank 9, that is, accommodates
Plane where plane where the notch of slot 9 end face opposite higher than the first permanent magnet 3 and the second permanent magnet 4, the first permanent magnetism
Body 3 is embedded in the second permanent magnet 4 in corresponding holding tank completely.When between the first measured piece 1 and the second measured piece 2
When distance is zero, the first permanent magnet 3 and the second permanent magnet 4 are fully located in holding tank, can to avoid the collision of two permanent magnets and
Generate damage.
Magnet type clearance measurement system further includes for measuring the repulsion between the first permanent magnet 3 and the second permanent magnet 4
The sensor installation seat of pressure sensor and installation pressure sensor.In the present embodiment, pressure sensor includes being set to first
First pressure sensor 5 between permanent magnet 3 and corresponding holding tank 9 and set on the second permanent magnet 4 and corresponding holding tank 9 it
Between second pressure sensor 6；Sensor installation seat is formed by measured piece.First pressure sensor 5 is sensed with second pressure
Device 6 can check one against another comparison, improve the accuracy of measurement result.The face of first pressure sensor 5 and second pressure sensor 6
Product can act power to pressure sensing in deformation to avoid cell wall and influence to measure less than the area of the slot bottom of holding tank 9
As a result accuracy.
Magnet type clearance measurement system further includes with first pressure sensor 5 and second pressure sensor 6 respectively by leading
The terminal board 7 of line connection, the other end of terminal board 7 are connect with host 8.Terminal board 7 can be by the pressure signal of pressure sensor
It is converted into electric signal, terminal board 7 is electrically connected with host 8, and electric signal is delivered to host 8 by terminal board 7, and host 8 is for electric signal
Analyzed and shown the numerical value of the repulsion between the first permanent magnet 3 and the second permanent magnet 4, it is simple to operate.
The magnet type clearance measurement system of the present invention when in use, first pass through test device detect the first permanent magnet 3 with
Quantitative relationship between the distance and repulsion of second permanent magnet 4, setting is different between the first permanent magnet 3 and the second permanent magnet 4
Distance, measure the repulsion value under respective distance, and distance and repulsion are obtained according to the correspondence between distance and repulsion
Curved line relation.First permanent magnet 3 and the second permanent magnet 4 are respectively assembled at the first measured piece 1 and the second measured piece 2
On holding tank 9 in, first pressure sensor 5 and second pressure sensor 6 respectively with the first permanent magnet 3 and the second permanent magnetism
Body 4 connects.Initial distance between first measured piece 1 and the second measured piece 2 is less than the first permanent magnet 3 and the second permanent magnet
Initial distance between 4, it is correction value to have fixed difference, the difference between two distances, when the first measured piece 1 and the
When the distance between two measured pieces 2 change, host 8 can obtain the repulsion between the first permanent magnet 3 and the second permanent magnet 4,
The distance between the first permanent magnet 3 and the second permanent magnet 4, the first permanent magnet are can be obtained by the correspondence of repulsion and distance
3 and second the distance between permanent magnet 4 subtract correction value and can be obtained between the first measured piece 1 and the second measured piece 2
Distance.
The present invention magnet type clearance measurement system embodiment 2 as shown in Fig. 2, with embodiment 1 difference lies in：Implement
The first permanent magnet end face opposite with the second permanent magnet is located at the inside of corresponding accommodating chamber in example 1, in the present embodiment
In, the first permanent magnet end face opposite with the second permanent magnet can also respectively with the accent of corresponding accommodating chamber where end face
Concordantly.
The present invention magnet type clearance measurement system embodiment 3, with embodiment 1 difference lies in：Magnet in embodiment 1
Mounting base formed by measured piece, in the present embodiment, individual sensor installation seat, sensor installation seat can also be set
It is equipped with mounting groove, pressure sensor is set to the slot bottom of mounting groove, and permanent magnet is arranged in the mounting groove of sensor installation seat, passes
Sensor mounting base forms the mounting base of magnet.
The present invention magnet type clearance measurement system embodiment 4, with embodiment 1 difference lies in：Two in embodiment 1
Permanent magnet is connected separately with pressure sensor, in the present embodiment, a pressure sensor, the pressure sensing can also only be arranged
Device is set between any permanent magnet and the slot bottom of corresponding holding tank.
The present invention also provides a kind of embodiment of the magnet mounting structure of clearance measurement system, the clearance measurement system
Magnet mounting structure includes spaced two magnets, and two magnet homopolarities are positioned opposite, further includes two magnetic of corresponding installation
Two mounting bases of body are respectively provided with the accommodating chamber for accommodating corresponding magnet, described two magnetic in described two mounting bases
The opposite end face of body is respectively with the plane where the accent of corresponding accommodating chamber concordantly or positioned at the inside of corresponding accommodating chamber.
The structure of the mounting base and accommodating chamber and the mounting base of above-mentioned magnet type clearance measurement system and the structure phase of accommodating chamber
Together, details are not described herein again.
Claims (9)
1. the magnet mounting structure of clearance measurement system, including spaced two magnets, two magnet homopolarities are positioned opposite,
Further include two mounting bases of two magnets of corresponding installation, it is characterised in that：Appearance is respectively provided in described two mounting bases
Receive the accommodating chamber of corresponding magnet, the opposite end faces of described two magnets respectively with it is flat where the accent of corresponding accommodating chamber
Face is concordant or positioned at the inside of corresponding accommodating chamber.
2. the magnet mounting structure of clearance measurement system according to claim 1, it is characterised in that：The magnet and receiving
There is interval between the cavity wall of chamber.
3. the magnet mounting structure of clearance measurement system according to claim 1 or 2, it is characterised in that：The magnet is
Permanent magnet.
4. magnet type clearance measurement system, including spaced two magnets, two magnet homopolarities are positioned opposite, further include pair
Two mounting bases and the pressure sensor for measuring the repulsion between two magnets, feature that two magnets should be installed exist
In：The accommodating chamber for accommodating corresponding magnet, the opposite end of described two magnets are respectively provided in described two mounting bases
Face is respectively with the plane where the accent of corresponding accommodating chamber concordantly or positioned at the inside of corresponding accommodating chamber, the pressure sensing
Device is set on sensor installation seat and between the magnet and the bottom of chamber of accommodating chamber, and the mounting base is by measured piece or biography
Sensor mounting base is formed.
5. magnet type clearance measurement system according to claim 4, it is characterised in that：The cavity wall of the magnet and accommodating chamber
Between have interval.
6. magnet type clearance measurement system according to claim 4 or 5, it is characterised in that：The magnet is permanent magnet.
7. magnet type clearance measurement system according to claim 4 or 5, it is characterised in that：Described two magnets and receiving
The pressure sensor is respectively equipped between the bottom of chamber of chamber.
8. magnet type clearance measurement system according to claim 7, it is characterised in that：The area of the pressure sensor is small
Area in the bottom of chamber of accommodating chamber.
9. magnet type clearance measurement system according to claim 4 or 5, it is characterised in that：The magnet type clearance measurement
System further includes the terminal board being connect with the pressure sensor and the host that is connect with terminal board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810602305.8A CN108759651A (en) | 2018-06-12 | 2018-06-12 | The magnet mounting structure of magnet type clearance measurement system and clearance measurement system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810602305.8A CN108759651A (en) | 2018-06-12 | 2018-06-12 | The magnet mounting structure of magnet type clearance measurement system and clearance measurement system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108759651A true CN108759651A (en) | 2018-11-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810602305.8A Pending CN108759651A (en) | 2018-06-12 | 2018-06-12 | The magnet mounting structure of magnet type clearance measurement system and clearance measurement system |
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| CN (1) | CN108759651A (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3902887A1 (en) * | 1988-02-10 | 1989-08-24 | Volkswagen Ag | Device for obtaining electrical motion and/or position signals in the case of relative movements between two components |
| CN1735791A (en) * | 2003-01-08 | 2006-02-15 | 皇家飞利浦电子股份有限公司 | Arrangement for determining position |
| US20110267040A1 (en) * | 2008-09-24 | 2011-11-03 | Moving Magnet Technologies (Mmt) | Linear or rotary position sensor with a permanent magnet for detecting a ferromagnetic target |
| CN203466001U (en) * | 2013-07-05 | 2014-03-05 | 汤剑刚 | Self-adjusting magnetic assembly structure |
| CN203856517U (en) * | 2014-01-26 | 2014-10-01 | 国家电网公司 | Steam turbine internal cylinder capable of measuring dynamic and static clearance |
| CN104180750A (en) * | 2014-07-07 | 2014-12-03 | 西安交通大学 | Accurate tester of superconductive-bulk magnetic-repulsion under micro gap and test method thereof |
| CN204458353U (en) * | 2014-11-18 | 2015-07-08 | 中国矿业大学 | Scroll machine axial clearance detection scroll |
| CN105180972A (en) * | 2014-06-11 | 2015-12-23 | 株式会社万都 | Linear Sensor Apparatus For Vehicle |
| CN205373622U (en) * | 2015-01-16 | 2016-07-06 | 日立金属株式会社 | Range finding system |
| CN105783689A (en) * | 2016-04-26 | 2016-07-20 | 高金 | Non-contact type magnetic force piezoelectric displacement sensor |
| CN206522969U (en) * | 2016-11-23 | 2017-09-26 | 青岛海尔智能技术研发有限公司 | Refrigerator |
| CN208187336U (en) * | 2018-06-12 | 2018-12-04 | 中国大唐集团科学技术研究院有限公司华中分公司 | A kind of magnet mounting structure of magnet type clearance measurement system and clearance measurement system |
-
2018
- 2018-06-12 CN CN201810602305.8A patent/CN108759651A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3902887A1 (en) * | 1988-02-10 | 1989-08-24 | Volkswagen Ag | Device for obtaining electrical motion and/or position signals in the case of relative movements between two components |
| CN1735791A (en) * | 2003-01-08 | 2006-02-15 | 皇家飞利浦电子股份有限公司 | Arrangement for determining position |
| US20110267040A1 (en) * | 2008-09-24 | 2011-11-03 | Moving Magnet Technologies (Mmt) | Linear or rotary position sensor with a permanent magnet for detecting a ferromagnetic target |
| CN203466001U (en) * | 2013-07-05 | 2014-03-05 | 汤剑刚 | Self-adjusting magnetic assembly structure |
| CN203856517U (en) * | 2014-01-26 | 2014-10-01 | 国家电网公司 | Steam turbine internal cylinder capable of measuring dynamic and static clearance |
| CN105180972A (en) * | 2014-06-11 | 2015-12-23 | 株式会社万都 | Linear Sensor Apparatus For Vehicle |
| CN104180750A (en) * | 2014-07-07 | 2014-12-03 | 西安交通大学 | Accurate tester of superconductive-bulk magnetic-repulsion under micro gap and test method thereof |
| CN204458353U (en) * | 2014-11-18 | 2015-07-08 | 中国矿业大学 | Scroll machine axial clearance detection scroll |
| CN205373622U (en) * | 2015-01-16 | 2016-07-06 | 日立金属株式会社 | Range finding system |
| JP2016133336A (en) * | 2015-01-16 | 2016-07-25 | 日立金属株式会社 | Distance measuring system, and distance measuring method |
| CN105783689A (en) * | 2016-04-26 | 2016-07-20 | 高金 | Non-contact type magnetic force piezoelectric displacement sensor |
| CN206522969U (en) * | 2016-11-23 | 2017-09-26 | 青岛海尔智能技术研发有限公司 | Refrigerator |
| CN208187336U (en) * | 2018-06-12 | 2018-12-04 | 中国大唐集团科学技术研究院有限公司华中分公司 | A kind of magnet mounting structure of magnet type clearance measurement system and clearance measurement system |
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