CN108955509B - Magnetic drag type carbon film linear displacement sensor with high sealing performance - Google Patents
Magnetic drag type carbon film linear displacement sensor with high sealing performance Download PDFInfo
- Publication number
- CN108955509B CN108955509B CN201811092884.2A CN201811092884A CN108955509B CN 108955509 B CN108955509 B CN 108955509B CN 201811092884 A CN201811092884 A CN 201811092884A CN 108955509 B CN108955509 B CN 108955509B
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- Prior art keywords
- magnetic ring
- aluminum pipe
- carbon film
- aluminum
- magnet
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- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 34
- 238000007789 sealing Methods 0.000 title claims abstract description 34
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 33
- 238000006073 displacement reaction Methods 0.000 title claims abstract description 18
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 101
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 100
- 238000005259 measurement Methods 0.000 claims abstract 2
- 239000003292 glue Substances 0.000 claims description 20
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 7
- 229910052802 copper Inorganic materials 0.000 claims description 7
- 239000010949 copper Substances 0.000 claims description 7
- 238000004026 adhesive bonding Methods 0.000 claims description 3
- 239000000428 dust Substances 0.000 abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 239000007788 liquid Substances 0.000 abstract description 3
- 239000003921 oil 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 3
- 238000010586 diagram Methods 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 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
- G01B7/02—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
Abstract
The invention provides a magnetic-drag type carbon film linear displacement sensor with high sealing performance, which comprises an aluminum pipe, wherein a carbon film circuit board and a sliding core are arranged in the aluminum pipe, an electric brush contacted with the carbon film circuit board is arranged on the sliding core, a non-porous aluminum cover and an outlet end aluminum cover are respectively arranged at two ends of the aluminum pipe, sealing of the aluminum pipe is realized by the non-porous aluminum cover and the outlet end aluminum cover, an upper magnetic ring and a lower magnetic ring are arranged outside the aluminum pipe in a sleeved mode, a magnetic ring magnet is arranged between the upper magnetic ring and the lower magnetic ring, a sliding core magnet is arranged in the sliding core, the magnetic ring magnet and the sliding core magnet are matched to realize sliding of the sliding core in the aluminum pipe along the carbon film circuit board, and the carbon film circuit board is connected with a sensing wire which is connected with the outside through the outlet end aluminum cover to conduct measurement signals. The sensor has high sealing performance, is suitable for various liquid interiors, deep water and oil and dust pollution environments, and fills the industry blank.
Description
Technical Field
The invention relates to a sensor for absolute synchronous motion by dragging a magnet in a fully-sealed aluminum profile through an external magnet, in particular to a magnetic dragging type carbon film linear displacement sensor with high sealing performance.
Background
Since the advent of linear displacement sensors with linear carbon films, the sealing performance is general due to the structural specificity of the products, and the linear displacement sensors are suitable for occasions with better environments, and cannot effectively guarantee the protection level in severe environments such as oil stains, dust and water.
Disclosure of Invention
The invention aims to provide a magnetic drag type carbon film linear displacement sensor with high sealing performance, which has good sealing performance, stable performance and high cost performance.
The technical scheme of the invention is as follows:
the utility model provides a magnetism drags carbon film linear displacement sensor with high sealing performance, includes the aluminum pipe, install carbon film circuit board and slide core in the aluminum pipe, install the brush that contacts with the carbon film circuit board on the slide core, nonporous aluminum cap and wire end aluminum cap are installed respectively at the both ends of aluminum pipe, and nonporous aluminum cap and wire end aluminum cap realize the sealing of aluminum pipe, install magnetic ring magnet under with at the aluminum pipe overcoat, install the magnetic ring magnet under with between the magnetic ring, install the slide core magnet in the slide core, magnetic ring magnet and slide core magnet cooperate and realize that the slide core slides along the carbon film circuit board in the aluminum pipe, the carbon film circuit board is connected the sensing line, and the sensing line is connected with the external world through wire end aluminum cap for with measuring signal conduction.
An O-shaped ring and a lower limiting glue piece are also installed between the non-porous aluminum cover and the lower end of the aluminum pipe, and the non-porous aluminum cover tightly presses and fixes the O-shaped ring and the lower limiting glue piece at the lower end of the aluminum pipe to realize the sealing of the lower end of the aluminum pipe.
And an O-shaped ring and an upper limit glue piece are also arranged between the outlet end aluminum cover and the upper end of the aluminum pipe, and the outlet end aluminum cover tightly fixes the O-shaped ring and the upper limit glue piece on the upper end of the aluminum pipe to realize the upper end sealing of the aluminum pipe.
The upper magnetic ring and the lower magnetic ring are correspondingly provided with mounting holes and connecting holes, the S poles of the magnetic ring magnets are respectively pressed into the mounting holes correspondingly formed in the upper magnetic ring and the lower magnetic ring, magnetic ring gaskets are arranged between the corresponding mounting holes and used for separating the corresponding magnetic ring magnets, straight-line copper nuts are pressed into the connecting holes of the lower magnetic ring from the outside, screws are arranged in the connecting holes of the upper magnetic ring, and the screws are matched with the straight-line copper nuts so as to fixedly lock the upper magnetic ring and the lower magnetic ring.
The magnetic ring magnets are provided with 4 groups, and 6*5 magnets are adopted as the magnetic ring magnets.
The bottom of slide core has been seted up the magnet mounting hole, slide core magnet includes two N poles, two S poles and slide core gasket, and two N poles, slide core gasket and two S poles insert in the slide core through the magnet mounting hole in proper order.
The pore-free aluminum cover and the wire outlet end aluminum cover are in sealing connection with the aluminum pipe through threads.
The circuit board is filled into the aluminum pipe and fixedly mounted by gluing.
The center of the lower limiting glue piece is sealed to seal the lower end of the aluminum pipe, and the center of the upper limiting glue piece is provided with a hole so that the sensing wire head penetrates into the hole to be welded with the carbon film circuit board.
The magnetic ring gasket and the sliding core gasket are gaskets with the thickness of 1.9 mm.
Compared with the prior art, the invention has the beneficial effects that: the sliding core can freely and smoothly slide in the aluminum pipe in a reciprocating manner, the non-hole aluminum cover and the aluminum cover at the outlet end ensure the high sealing of the aluminum pipe, and the magnets arranged in the upper magnetic ring and the lower magnetic ring outside drag the sliding core magnet in the sliding core to perform absolute synchronous movement, so that the function of the linear displacement sensor is realized. The sensor has high sealing performance, is suitable for various liquid interiors, deep water and oil and dust pollution environments, and fills the industry blank.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic diagram of an exploded construction of the present invention;
FIG. 3 is a schematic view of the structure of the aluminum pipe of the present invention;
FIG. 4 is a schematic diagram of the structure of an upper magnetic ring and a lower magnetic ring of the invention;
FIG. 5 is a schematic view of a slide core according to the present invention.
The reference numerals in the drawing respectively indicate a 1-nonporous aluminum cover, a 2-O-shaped ring, a 3-lower limiting glue piece, a 4-sliding core magnet, a 5-sliding core gasket, a 6-sliding core, a 7-electric brush, an 8-carbon film circuit board, a 9-aluminum pipe, a 10-straight line copper nut, a 11-magnetic ring magnet, a 12-magnetic ring gasket, a 13-screw, a 14-lower magnetic ring, a 15-upper magnetic ring, a 16-upper limiting glue piece, a 17-wire outlet end aluminum cover, a 60-magnet mounting hole and a 61-electric brush mounting seat.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1 to 3, the present invention provides a technical solution:
a magnetic drag type carbon film linear displacement sensor with high sealing performance comprises an aluminum pipe 9, wherein a carbon film circuit board 8 and a sliding core 6 are installed in the aluminum pipe 9, an electric brush 7 which is in contact with the carbon film circuit board 8 is installed on the sliding core 6, a non-porous aluminum cover 1 and an outlet end aluminum cover 17 are installed at two ends of the aluminum pipe 9 respectively, sealing of the aluminum pipe 9 is achieved through the non-porous aluminum cover 1 and the outlet end aluminum cover 17, an upper magnetic ring 15 and a lower magnetic ring 14 are installed outside the aluminum pipe 9 in a sleeved mode, a magnetic ring magnet 11 is installed between the upper magnetic ring 15 and the lower magnetic ring 14, a sliding core magnet 4 is installed in the sliding core 6, the magnetic ring magnet 11 and the sliding core magnet 4 are matched to enable the sliding core 6 to slide along the carbon film circuit board 8 in the aluminum pipe 9, the carbon film circuit board 8 is connected with a sensing line, and the sensing line is connected with the outside through the outlet end aluminum cover 17 to conduct measuring signals.
An O-shaped ring 2 and a lower limiting glue piece 3 are further arranged between the non-porous aluminum cover 1 and the lower end of the aluminum pipe 9, and the non-porous aluminum cover 1 tightly presses and fixes the O-shaped ring 2 and the lower limiting glue piece 3 at the lower end of the aluminum pipe 9 to realize the sealing of the lower end of the aluminum pipe.
An O-shaped ring 2 and an upper limit glue piece 16 are further arranged between the wire outlet end aluminum cover 17 and the upper end of the aluminum pipe, and the wire outlet end aluminum cover 17 tightly presses and fixes the O-shaped ring 2 and the upper limit glue piece 16 at the upper end of the aluminum pipe to realize the upper end sealing of the aluminum pipe.
The upper magnet ring 15 and the lower magnet ring 14 are correspondingly provided with mounting holes and connecting holes, the S poles of the magnet ring magnets 11 are respectively pressed into the corresponding mounting holes of the upper magnet ring 15 and the lower magnet ring 14, a magnet ring gasket 12 is arranged between the corresponding mounting holes to separate the corresponding magnet ring magnets 11, the connecting holes of the lower magnet ring 14 are pressed into the straight-line copper nuts 10 from the outside, the connecting holes of the upper magnet ring 15 are internally provided with screws 13, and the screws 13 are matched with the straight-line copper nuts 10 to fixedly lock the upper magnet ring 15 and the lower magnet ring 14.
The magnetic ring magnets 11 are provided with 4 groups, and 6*5 magnets are adopted as the magnetic ring magnets.
The bottom of slide 6 has seted up magnet mounting hole 60, slide magnet 4 includes two N poles, two S poles and slide pad piece 5, and two N poles, slide pad piece 5 and two S poles insert in the slide 6 through magnet mounting hole 60 in proper order, and brush 7 passes through screw fixed mounting on brush mount pad 61.
The nonporous aluminum cover 1 and the wire outlet end aluminum cover 17 are in sealing connection with the aluminum pipe 9 through threads.
The circuit board 8 is fixedly arranged in the aluminum pipe 9 by gluing.
The center of the lower limiting glue piece 3 is sealed to seal the lower end of the aluminum pipe, and the center of the upper limiting glue piece 16 is provided with a hole so that the sensing wire head penetrates into the carbon film circuit board 8 to be welded.
The magnetic ring gasket 12 and the sliding core gasket 5 are gaskets with the thickness of 1.9 mm.
According to the magnetic drag type carbon film linear displacement sensor with high sealing performance, the sliding core can freely and smoothly slide back and forth in the aluminum pipe, the non-hole aluminum cover and the wire outlet end aluminum cover ensure high sealing of the aluminum pipe, and the magnets arranged in the upper magnetic ring and the lower magnetic ring outside drag the sliding core magnet in the sliding core to perform absolute synchronous movement, so that the function of the linear displacement sensor is realized. The sensor has high sealing performance, is suitable for various liquid interiors, deep water and oil and dust pollution environments, and fills the industry blank. The invention has simple structure, stable and reliable comprehensive performance, high cost performance and convenient mass production.
The magnetic drag type linear displacement sensor with high sealing performance is stable in performance and high in cost performance, is widely used for real-time monitoring of various mechanical linear motion data, can directly display various data monitoring of mechanical linear motion through cooperation with an industrial control system, and gives working instructions. In practical application, the comprehensive performance index of the system is directly related to the advantages and disadvantages of the whole equipment control series.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. A magnetic drag type carbon film linear displacement sensor with high sealing performance is characterized in that: the carbon film circuit board is arranged in the aluminum pipe, an electric brush contacted with the carbon film circuit board is arranged on the sliding core, a non-porous aluminum cover and an outlet end aluminum cover are respectively arranged at two ends of the aluminum pipe, sealing of the aluminum pipe is realized by the non-porous aluminum cover and the outlet end aluminum cover, an upper magnetic ring and a lower magnetic ring are arranged outside the aluminum pipe in a sleeved mode, a magnetic ring magnet is arranged between the upper magnetic ring and the lower magnetic ring, a sliding core magnet is arranged in the sliding core, the magnetic ring magnet and the sliding core magnet are matched to realize sliding of the sliding core in the aluminum pipe along the carbon film circuit board, the carbon film circuit board is connected with a sensing wire, and the sensing wire is connected with the outside through the outlet end aluminum cover to conduct measurement signals;
an O-shaped ring and a lower limit glue piece are also arranged between the non-porous aluminum cover and the lower end of the aluminum pipe, and the non-porous aluminum cover tightly presses and fixes the O-shaped ring and the lower limit glue piece at the lower end of the aluminum pipe to realize the sealing of the lower end of the aluminum pipe;
an O-shaped ring and an upper limit glue piece are also arranged between the outlet end aluminum cover and the upper end of the aluminum pipe, and the outlet end aluminum cover tightly fixes the O-shaped ring and the upper limit glue piece on the upper end of the aluminum pipe to realize the sealing of the upper end of the aluminum pipe;
the upper magnetic ring and the lower magnetic ring are correspondingly provided with mounting holes and connecting holes, the S poles of the magnetic ring magnets are respectively pressed into the mounting holes correspondingly formed in the upper magnetic ring and the lower magnetic ring, magnetic ring gaskets are arranged between the corresponding mounting holes and used for separating the corresponding magnetic ring magnets, straight copper nuts are pressed into the connecting holes of the lower magnetic ring from the outside, and screws are arranged in the connecting holes of the upper magnetic ring and are matched with the straight copper nuts so as to fixedly lock the upper magnetic ring and the lower magnetic ring;
the magnetic ring magnets are provided with 4 groups, and 6*5 magnets are adopted as the magnetic ring magnets;
the bottom of slide core has been seted up the magnet mounting hole, slide core magnet includes two N poles, two S poles and slide core gasket, and two N poles, slide core gasket and two S poles insert in the slide core through the magnet mounting hole in proper order.
2. The magnetic drag type carbon film linear displacement sensor with high sealing performance according to claim 1, wherein: the pore-free aluminum cover and the wire outlet end aluminum cover are in sealing connection with the aluminum pipe through threads.
3. The magnetic drag type carbon film linear displacement sensor with high sealing performance according to claim 1, wherein: the circuit board is filled into the aluminum pipe and fixedly mounted by gluing.
4. The magnetic drag type carbon film linear displacement sensor with high sealing performance according to claim 1, wherein: the center of the lower limiting glue piece is sealed to seal the lower end of the aluminum pipe, and the center of the upper limiting glue piece is provided with a hole so that the sensing wire head penetrates into the hole to be welded with the carbon film circuit board.
5. The magnetic drag type carbon film linear displacement sensor with high sealing performance according to claim 1, wherein: the magnetic ring gasket and the sliding core gasket are gaskets with the thickness of 1.9 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811092884.2A CN108955509B (en) | 2018-09-19 | 2018-09-19 | Magnetic drag type carbon film linear displacement sensor with high sealing performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811092884.2A CN108955509B (en) | 2018-09-19 | 2018-09-19 | Magnetic drag type carbon film linear displacement sensor with high sealing performance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108955509A CN108955509A (en) | 2018-12-07 |
| CN108955509B true CN108955509B (en) | 2024-04-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811092884.2A Active CN108955509B (en) | 2018-09-19 | 2018-09-19 | Magnetic drag type carbon film linear displacement sensor with high sealing performance |
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| Country | Link |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1074034A (en) * | 1992-10-22 | 1993-07-07 | 浙江大学 | High-voltage isolation-type Hall effect displacement sensor |
| CN201348493Y (en) * | 2009-01-23 | 2009-11-18 | 上海沃巴弗电子科技有限公司 | High pressure resistance straight-line displacement sensor |
| CN201348494Y (en) * | 2009-01-23 | 2009-11-18 | 上海沃巴弗电子科技有限公司 | Straight-line displacement sensor |
| CN202057288U (en) * | 2011-04-01 | 2011-11-30 | 东莞市迈恩传感科技有限公司 | Magnetic slider type carbon membrane linear displacement sensor |
| CN208751475U (en) * | 2018-09-19 | 2019-04-16 | 枣阳市米朗科技有限公司 | A kind of magnetic towed carbon membrane linear displacement sensor with high sealing performance |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4739963B2 (en) * | 2006-01-18 | 2011-08-03 | アルプス電気株式会社 | In-vehicle GMR angle sensor |
-
2018
- 2018-09-19 CN CN201811092884.2A patent/CN108955509B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1074034A (en) * | 1992-10-22 | 1993-07-07 | 浙江大学 | High-voltage isolation-type Hall effect displacement sensor |
| CN201348493Y (en) * | 2009-01-23 | 2009-11-18 | 上海沃巴弗电子科技有限公司 | High pressure resistance straight-line displacement sensor |
| CN201348494Y (en) * | 2009-01-23 | 2009-11-18 | 上海沃巴弗电子科技有限公司 | Straight-line displacement sensor |
| CN202057288U (en) * | 2011-04-01 | 2011-11-30 | 东莞市迈恩传感科技有限公司 | Magnetic slider type carbon membrane linear displacement sensor |
| CN208751475U (en) * | 2018-09-19 | 2019-04-16 | 枣阳市米朗科技有限公司 | A kind of magnetic towed carbon membrane linear displacement sensor with high sealing performance |
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| CN108955509A (en) | 2018-12-07 |
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Address after: 441200 milang Industrial Park, 112 Jianshe West Road, Zaoyang City, Xiangyang City, Hubei Province Applicant after: Hubei Mirang Technology Co.,Ltd. Address before: 441200 milang Industrial Park, 112 Jianshe West Road, Zaoyang City, Xiangyang City, Hubei Province Applicant before: ZAOYANG MIRAN SCIENCE & TECHNOLOGY CO.,LTD. |
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