CN110864614B - Device and method for manufacturing high-temperature-resistant displacement sensor probe based on planar coil - Google Patents
Device and method for manufacturing high-temperature-resistant displacement sensor probe based on planar coil Download PDFInfo
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- CN110864614B CN110864614B CN201911042098.6A CN201911042098A CN110864614B CN 110864614 B CN110864614 B CN 110864614B CN 201911042098 A CN201911042098 A CN 201911042098A CN 110864614 B CN110864614 B CN 110864614B
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- 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
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- 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
- G01B7/001—Constructional details of gauge heads
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
- H01F41/06—Coil winding
- H01F41/064—Winding non-flat conductive wires, e.g. rods, cables or cords
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
- H01F41/06—Coil winding
- H01F41/071—Winding coils of special form
- H01F41/074—Winding flat coils
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
- H01F41/06—Coil winding
- H01F41/096—Dispensing or feeding devices
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
- H01F41/06—Coil winding
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Abstract
The invention discloses a device and a method for manufacturing a high-temperature-resistant displacement sensor probe based on a planar coil. The metal wire is conveyed into the middle of the fixed clamping pieces through the wire conveying unit and fixed on the winding shaft, the winding shaft is driven to rotate through the winding motor and wound between the two fixed clamping pieces to form a planar coil, and the planar coil and the ceramic pieces are packaged by adopting ceramic glue. The invention has controllable cost and high reliability, is convenient for batch production, can independently select coil materials, wire diameters and coil sizes to manufacture a suitable planar inductance coil, and solves the problems of manufacturing and forming of non-self-adhesive wire planar coils. The planar inductive sensor probe made of high-temperature resistant materials can be used for non-contact measurement in a severe environment of more than 1000 ℃, and solves the problems of sealing processing and temperature resistance of the sensor probe in an extremely high-temperature environment.
Description
Technical Field
The invention belongs to the technical field of eddy current displacement measurement, and relates to a device and a method for manufacturing a high-temperature-resistant displacement sensor probe based on a planar coil.
Background
The eddy current sensor is a non-contact type measuring sensor with high sensitivity, large sensing range, fast response speed and simple structure. The method has wide application value in the aspects of mechanical displacement, deformation, crack detection and the like.
For the problem of measuring the tiny displacement of components in high-temperature equipment such as a gas turbine, a steam turbine and the like, higher requirements are put on the temperature resistance and the sensitivity of a sensor. The conventional coil of the eddy current displacement sensor is made of copper or silver, and the highest temperature resistance of the coil is not more than 900 ℃; or a complex probe structure is adopted to cool the induction coil so as to improve the service temperature of the probe. The processing method of the inductance coil commonly used at present is three-dimensional spiral winding and self-adhesive forming or photoetching sputtering method, wherein the three-dimensional spiral coil and the self-adhesive planar coil cannot meet the requirements of high temperature and micro distance measurement above 1000 ℃, the photoetching sputtering method has various devices, complex processing technology and high cost, and the temperature resistance of the adopted material cannot meet the requirements of the use environment above 1000 ℃.
Disclosure of Invention
Aiming at the defects and shortcomings in the prior art, the invention provides a device and a method for manufacturing a high-temperature-resistant displacement sensor probe based on a planar coil, which solve the problems of processing and packaging of a sensor coil without a self-adhesive coil.
In order to achieve the purpose, the invention adopts the following technical scheme:
a high-temperature resistant displacement sensor probe manufacturing device based on a planar coil comprises a displacement control unit, a wire feeding unit, a winding driving unit and a planar coil fixing unit, wherein the wire feeding unit and the winding driving unit are arranged on the displacement control unit;
the displacement control unit comprises a base, a sliding rail arranged on the base, a displacement platform which is arranged on the sliding rail and can move along the sliding rail, a displacement shaft which is connected with the displacement platform in a penetrating way and is parallel to the sliding rail, and a motor connected with the displacement shaft;
the wire feeding unit comprises a fixed seat arranged on the displacement platform, a large wire wheel, a small wire wheel and a wire feeding conical head which are arranged on the fixed seat;
the winding driving unit comprises a fixed plate arranged on the displacement platform, a winding motor arranged on the fixed plate, a coupler connected with the winding motor and a winding shaft coaxially connected with the coupler; the wire feeding conical head points to the winding shaft; the winding shaft is parallel to the displacement shaft, and the motor can drive the displacement shaft to drive the displacement platform, and the wire feeding unit and the winding driving unit which are positioned on the displacement platform to simultaneously move in the same direction; the winding shaft is used for fixing the metal wire and driving the metal wire to be wound between the planar coil fixing clamping pieces to form a planar coil, the shaft diameter of the winding shaft can be changed according to the hollow inner diameter requirement of the planar coil, and the winding shaft can perform axial reciprocating motion, so that the winding shaft penetrates into the through hole of the planar coil fixing clamping pieces; the winding motor is a low-speed motor, the rotating speed and the number of turns of the winding motor can be adjusted through a controller, specifically, the rotating speed can be adjusted within the range of 60 rpm-3000 rpm and is used for driving the winding shaft to rotate, and the metal wire is driven to form a planar coil by the rotation of the motor by taking the winding shaft as the center.
The planar coil fixing unit comprises two fixing clamping pieces, a clamping piece fixing frame, a fixing frame displacement table and a displacement controller, wherein the two fixing clamping pieces are parallel and opposite to each other; the fixed clamping pieces are all arranged on the clamping piece fixing frame, and the distance between the two fixed clamping pieces is adjustable; the winding shaft penetrates through the two fixed clamping pieces; the clamping piece fixing frame is connected with the fixing frame displacement table, and the fixing frame displacement table is connected with the displacement controller.
The invention also comprises the following technical characteristics:
specifically, the clamping piece fixing frame comprises a first bracket and a second bracket, and the distance between the first bracket and the second bracket is adjustable; the fixed frame displacement table comprises a first fixed frame displacement table used for mounting a first support and a second fixed frame displacement table used for mounting a second support, the first fixed frame displacement table is fixed on the base, a slide way is arranged on the first fixed frame displacement table, and the slide way is parallel to the winding shaft; the second fixed frame displacement table is arranged on the slideway and can move along the slideway;
the two fixed clamping pieces are respectively a first fixed clamping piece and a second fixed clamping piece, the first fixed clamping piece is arranged on the first support, and the second fixed clamping piece is arranged on the second support; the displacement controller can control the second fixing frame displacement table to slide on the slideway, so that the distance between the first support and the second support is adjusted, and the distance between the first fixing clamping piece and the second fixing clamping piece is further controlled.
The fixed clamping piece comprises an upper fixed clamping piece part and a lower fixed clamping piece part which can be spliced into a circular fixed clamping piece, and the upper fixed clamping piece part and the lower fixed clamping piece part are hinged to open and close the fixed clamping piece; the wall that fixed clamping piece upper portion and fixed clamping piece lower part contacted all is equipped with relative arc wall, and when fixed clamping piece was closed, two arc wall butt joints become the perforating hole that link up fixed clamping piece, and the perforating hole and the spool of two fixed clamping pieces are coaxial, the spool can pass this perforating hole.
Specifically, a bolt is arranged between the upper part of the fixed clamping piece and the lower part of the fixed clamping piece, and the upper part of the fixed clamping piece and the lower part of the fixed clamping piece can be tightly spliced by screwing the bolt, so that the fixed clamping piece is closed; the fixed clamping piece can be opened by loosening the bolt; the opening and closing of the fixing clip is used to realize the installation of the fixing clip on the bobbin.
Specifically, one surface of the fixed clamping piece is a plane, the other surface of the fixed clamping piece is a convex conical surface, and the through hole penetrates through the center of the convex conical surface; the convex conical surface is provided with a circular groove taking the through hole as the center; the convex conical surfaces of the two fixed clamping pieces are opposite. The corresponding circular groove parts of the two fixing clamping pieces are used for embedding the ceramic sheets and fixing the shape of the planar coil, and the two fixing clamping pieces and the molded planar coil are taken down at the same time for packaging, so that the deformation of the molded planar coil in the packaging process is avoided. The ceramic chip is made of the same material as the sensor packaging ceramic adhesive in advance, and the center of the ceramic chip is provided with a hole, and the diameter of the hole is matched with the diameters of the winding shaft and the metal wire so that the metal wire and the winding shaft can penetrate through the center hole.
Specifically, the fixed seat is vertically arranged on the displacement platform, the wire feeding conical head is arranged on a rotating shaft vertical to the fixed seat, the wire feeding conical head can rotate around the rotating shaft, and the plane where the wire feeding conical head rotates is vertical to the winding shaft; the wire feeding conical head is a central through structure so as to enable a metal wire to pass through;
the large wire wheel and the small wire wheel are both vertically installed on the fixing seat, and the large wire wheel, the small wire wheel and the wire feeding conical head are located on the same side of the fixing seat. The large wire wheel is used for fixing the metal wire, the small wire wheel is used for tensioning the metal wire, so that the metal wire entering the wire feeding conical head is kept in a tensioning state, winding, scraping and rubbing of the wound wire are avoided, and meanwhile the effect of aligning the gap between the fixing clamping pieces of the planar coil is achieved. The wire feeding conical head is a hollow conical cylinder, the metal wire enters from the tail end of the conical cylinder and is fed out from the thin end, and the wire feeding conical head is adjustable by 180 degrees and used for aligning the gap of the planar coil fixing clamping piece; the metal wire is sent out from the wire feeding conical head and then penetrates out from a gap between the through hole of the right plane coil fixing clamping piece and the winding shaft and is fixed on the winding shaft.
Specifically, the base both ends are equipped with two vertical and parallel lateral walls each other, the displacement axis is established between two lateral walls, and the motor is fixed on one of them lateral wall.
Specifically, the side wall is also provided with a stabilizing block corresponding to the end part of the winding shaft, and the stabilizing block is provided with a cylindrical groove coaxial with the winding shaft; the end part of the winding shaft can extend into the cylindrical groove, so that the stability and the limitation of the winding shaft are realized.
The invention also provides a method for manufacturing the high-temperature-resistant displacement sensor probe based on the planar coil, which adopts the device and specifically comprises the following steps:
the method comprises the following steps: winding a raw material metal wire of the planar coil on a large wire wheel, tensioning the raw material metal wire by a small wire wheel, then penetrating through a wire feeding conical head, and penetrating the metal wire through a through hole of a fixed clamping piece along a winding shaft and fixing the metal wire on the winding shaft;
step two: the positions of the wire feeding unit and the wire winding driving unit are adjusted through a motor; then adjusting the relative position of a fixed clamping piece and a winding shaft in the planar coil fixing unit through a displacement controller to enable the winding shaft to penetrate through a through hole of the fixed clamping piece;
step three: the position between the first bracket and the second bracket is adjusted through the displacement controller, the second fixed clamping piece is accurately controlled to enable the winding shaft to penetrate through the through hole of the fixed clamping piece, and then the distance between the two fixed clamping pieces is adjusted to reach the thickness of the target planar coil;
step four: after the metal wire and each part are fixed, starting a winding motor, driving a winding shaft to rotate to drive the metal wire to form a planar coil in the gap between the two fixing clamping pieces, and stopping the winding motor;
step five: the displacement platform is adjusted through the motor, and the winding motor drives the coupler and the winding shaft to axially move away from the position of the fixed clamping piece;
step six: the two fixed clamping pieces are disassembled from the clamping piece fixing frame, and the ceramic sheets and the formed planar coil at the centers of the two fixed clamping pieces are taken down simultaneously;
step seven: and packaging gaps between the ceramic plates and the planar coil by using ceramic glue, and fixing the shape and position of the planar coil to obtain the sensor probe.
Compared with the prior art, the invention has the beneficial technical effects that:
the invention provides a manufacturing device of a planar eddy current coil displacement sensor probe aiming at the problem of micro displacement measurement in a high-temperature environment, which solves the problems of processing and packaging of a sensor coil without a self-adhesive coil; the method provided by the invention ensures the sensitivity and the measurement range of the sensor, breaks through the upper limit of the use temperature of the inductive displacement sensor, and provides a necessary method for manufacturing the sensor probe for solving the problem of micro displacement measurement in an extreme environment.
In the invention, the raw material of the induction coil enters the middle of the coil fixing clamping pieces through the wire wheel and the conical head of the wire feeder and is fixed on the winding shaft, the winding shaft is driven to rotate by the winding motor and is wound into the planar coil between the two parallel fixing clamping pieces, and then the coil and the ceramic clamping pieces are packaged by adopting ceramic glue, so that the position and the structure of the planar coil are fixed, meanwhile, the induction coil can be prevented from being damaged by corrosive gas in the gas turbine, the service life of the induction coil is prolonged, and the displacement measuring device can be used for displacement measurement in an ultrahigh temperature environment.
The invention can independently select coil material, wire diameter and coil size to manufacture a suitable planar inductance coil; the ceramic chip is used as a clamping piece of the planar coil, so that the shape of the planar coil can be effectively fixed; the ceramic gel is adopted to carry out seamless packaging on the coil and the ceramic chip, so that the influence of high-temperature deformation on coil induction can be avoided besides the structure of the induction coil is effectively fixed, and the influence of thermal expansion on the measurement result is reduced.
The sensor probe manufacturing device is formed by combining conventional equipment, has controllable cost and high reliability, is convenient for batch production, and can be manufactured according to the structural requirements of different sensor probes. The planar inductive sensor probe made of high-temperature resistant materials can be used for non-contact measurement in a severe environment of more than 1000 ℃, and solves the problems of sealing processing and temperature resistance of the sensor probe in an extremely high-temperature environment.
The probe coil of the sensor generates an alternating magnetic field in the surrounding space of the probe coil through a high-frequency excitation signal, and induces an induced current in a conductor passing through the magnetic field, wherein the direction of the induced current is opposite to that of an original excitation signal, so that the impedance of the induction coil of the sensor is influenced. By measuring the impedance variation of the induction coil, the variation of the distance between the conductor and the sensor probe can be obtained.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a top view of the present invention;
FIG. 4 is a right side view of the present invention;
FIG. 5 is a schematic view of the structure of the fixing clip of the present invention, wherein (a) is the upper part of the fixing clip and (b) is the lower part of the fixing clip;
FIG. 6 is a schematic view of the mounting structure of the fixing clip of the present invention;
fig. 7 is a schematic structural view of a planar coil fixing unit according to the present invention.
The reference numerals in the figures denote: 1-moving control unit, 2-wire feeding unit, 3-winding driving unit and 4-plane coil fixing unit;
(1-1) -base, (1-2) -slide rail, (1-3) -displacement platform, (1-4) -displacement shaft, (1-5) -motor;
(2-1) -a fixed seat, (2-2) -a large wire wheel, (2-3) -a small wire wheel, (2-4) -a wire feeding conical head;
(3-1) -a fixing plate, (3-2) -a winding motor, (3-3) -a coupler, (3-4) -a winding shaft;
(4-1) -a fixed clamping piece, (4-2) -a clamping piece fixing frame, (4-3) -a fixing frame displacement table and (4-4) -a displacement controller;
(4-1-1) -the upper part of the fixed clip, (4-1-2) -the lower part of the fixed clip, (4-1-3) -the through hole;
(4-2-1) -a first scaffold, (4-2-2) -a second scaffold;
(4-3-1) -a first fixing frame displacement table and (4-3-2) -a second fixing frame displacement table.
Detailed Description
The following embodiments of the present invention are provided, and it should be noted that the present invention is not limited to the following embodiments, and all equivalent changes based on the technical solutions of the present invention are within the protection scope of the present invention.
Example 1:
the embodiment provides a high-temperature-resistant displacement sensor probe manufacturing device based on a planar coil, which comprises a displacement control unit 1, a wire feeding unit 2, a winding driving unit 3 and a planar coil fixing unit 4, wherein the wire feeding unit 2 and the winding driving unit 3 are arranged on the displacement control unit 1, and the planar coil fixing unit 4 is detachably matched with the winding driving unit 3; the displacement control unit 1 comprises a base 1-1, a sliding rail 1-2 arranged on the base 1-1, a displacement platform 1-3 which is arranged on the sliding rail 1-2 and can move along the sliding rail 1-2, a displacement shaft 1-4 which is connected with the displacement platform 1-3 in a penetrating way and is parallel to the sliding rail 1-2, and a motor 1-5 which is connected with the displacement shaft 1-4; the wire feeding unit 2 comprises a fixed seat 2-1 arranged on the displacement platform 1-3, a large wire wheel 2-2 arranged on the fixed seat 2-1, a small wire wheel 2-3 and a wire feeding conical head 2-4; the winding driving unit 3 comprises a fixed plate 3-1 arranged on the displacement platform 1-3, a winding motor 3-2 arranged on the fixed plate 3-1, a coupler 3-3 connected with the winding motor 3-2 and a winding shaft 3-4 coaxially connected with the coupler 3-3; the wire feeding conical head 2-4 points to the winding shaft 3-4; the winding shaft 3-4 is parallel to the displacement shaft 1-4, and the motor 1-5 can drive the displacement shaft 1-4 to drive the displacement platform 1-3, the wire feeding unit 2 and the winding driving unit 3 which are positioned on the displacement platform 1-3 to simultaneously move in the same direction; the winding shafts 3-4 are used for fixing metal wires and driving the metal wires to be wound between the planar coil fixing clamping pieces to form a planar coil, the shaft diameters of the winding shafts 3-4 can be changed according to the hollow inner diameter requirement of the planar coil, and the winding shafts 3-4 can axially reciprocate, so that the winding shafts 3-4 penetrate into the planar coil fixing clamping piece through holes; the winding motor 3-2 is a low-speed motor, the rotating speed and the number of turns of the winding motor can be adjusted through a controller, specifically, the rotating speed can be adjusted within the range of 120 rpm-3000 rpm and is used for driving the winding shaft 3-4 to rotate, and the metal wire is driven by the rotation of the motor to form a planar coil by taking the winding shaft 3-4 as the center.
The planar coil fixing unit 4 comprises two mutually parallel and opposite fixed clamping pieces 4-1, a clamping piece fixing frame 4-2, a fixing frame displacement table 4-3 and a displacement controller 4-4; the fixed clamping pieces 4-1 are all arranged on the clamping piece fixing frame 4-2, and the distance between the two fixed clamping pieces 4-1 is adjustable; the winding shaft 3-4 penetrates through the two fixed clamping pieces 4-1; the clamping piece fixing frame 4-2 is connected with the fixing frame displacement table 4-3, and the fixing frame displacement table 4-3 is connected with the displacement controller 4-4.
In the embodiment, the clip fixing frame 4-2 comprises a first bracket 4-2-1 and a second bracket 4-2-2 with adjustable distance; the fixed frame displacement table 4-3 comprises a first fixed frame displacement table 4-3-1 for mounting the first support 4-2-1 and a second fixed frame displacement table 4-3-2 for mounting the second support 4-2-2, the first fixed frame displacement table 4-3-1 is fixed on the base 1-1, a slideway is arranged on the first fixed frame displacement table 4-3-1, and the slideway is parallel to the winding shaft 3-4; the second fixed frame displacement table 4-3-2 is arranged on the slideway and can move along the slideway; the two fixed clamping pieces 4-1 are respectively a first fixed clamping piece and a second fixed clamping piece, the first fixed clamping piece is arranged on the first bracket 4-2-1, and the second fixed clamping piece is arranged on the second bracket 4-2-2; the displacement controller 4-4 can control the displacement table 4-3-2 of the second fixing frame to slide on the slideway, so that the distance between the first bracket 4-2-1 and the second bracket 4-2-2 is adjusted, and the distance between the first fixing clamping piece and the second fixing clamping piece is further controlled.
Specifically, the fixed clamping piece 4-1 comprises a fixed clamping piece upper part 4-1-1 and a fixed clamping piece lower part 4-1-2 which can be spliced into a round fixed clamping piece 4-1, and the fixed clamping piece upper part 4-1-1 and the fixed clamping piece lower part 4-1-2 are hinged to open and close the fixed clamping piece 4-1; the wall surfaces of the upper part 4-1-1 of the fixed clamping piece and the lower part 4-1-2 of the fixed clamping piece, which are contacted, are provided with opposite arc-shaped grooves, when the fixed clamping piece 4-1 is closed, the two arc-shaped grooves are butted to form a through hole 4-1-3 which penetrates through the fixed clamping piece 4-1, the through hole 4-1-3 of the two fixed clamping pieces 4-1 is coaxial with the winding shaft 3-4, and the winding shaft 3-4 can penetrate through the through hole 4-1-3.
More specifically, a bolt is arranged between the upper part 4-1-1 of the fixed clamping piece and the lower part 4-1-2 of the fixed clamping piece, and the bolt is screwed down to enable the upper part 4-1-1 of the fixed clamping piece and the lower part 4-1-2 of the fixed clamping piece to be tightly spliced to realize the closing of the fixed clamping piece 4-1; the fixed clamping piece 4-1 can be opened by loosening the bolt; the fixed jaw 4-1 is opened and closed to achieve the mounting of the fixed jaw 4-1 on the bobbin 3-4.
One surface of the fixed clamping piece 4-1 is a plane, the other surface is a convex conical surface, and the through hole 4-1-3 penetrates through the center of the convex conical surface; the convex conical surface is provided with a circular groove taking the through hole 4-1-3 as the center; the convex conical surfaces of the two fixed clamping pieces 4-1 are opposite. The corresponding circular groove parts of the two fixing clamping pieces 4-1 are used for embedding the ceramic sheets, are used for fixing the shape of the planar coil, and are taken down simultaneously with the molded planar coil for packaging, so that the deformation of the molded planar coil in the packaging process is avoided. The ceramic chip is made of the same material as the sensor packaging ceramic adhesive in advance, and the center of the ceramic chip is provided with a hole, and the diameter of the hole is matched with the diameters of the winding shaft and the metal wire so that the metal wire and the winding shaft can penetrate through the center hole.
The fixed seat 2-1 is vertically arranged on the displacement platform 1-3, the wire feeding conical head 2-4 is arranged on a rotating shaft vertical to the fixed seat 2-1, the wire feeding conical head 2-4 can rotate around the rotating shaft, and the plane where the wire feeding conical head 2-4 rotates is vertical to the winding shaft 3-4; the wire feeding conical head 2-4 is a central through structure so as to lead the metal wire to pass through; the large wire wheel 2-2 and the small wire wheel 2-3 are both vertically arranged on the fixed seat 2-1, and the large wire wheel 2-2, the small wire wheel 2-3 and the wire feeding conical head 2-4 are positioned at the same side of the fixed seat 2-1. The large wire wheel 2-2 is used for fixing metal wires, the small wire wheel 2-3 is used for tensioning the metal wires, so that the metal wires entering the wire feeding conical head 2-4 are kept in a tensioning state, winding and rubbing of winding wires are avoided, and meanwhile, the effect of aligning the gap between the planar coil and the fixing clamping piece is achieved. The wire feeding conical head 2-4 is a hollow conical cylinder, a metal wire enters from the tail end of the conical cylinder and is fed out from the thin end, and the wire feeding conical head is adjustable by 180 degrees and is used for aligning the gap of the planar coil fixing clamping piece 4-1; the metal wire is sent out from the wire feeding conical head 2-4 and then penetrates through a gap between the through hole 4-1-3 of the right plane coil fixing clamping piece 4-1 and the winding shaft 3-4 and is fixed on the winding shaft 3-4.
Two vertical and parallel side walls are arranged at two ends of the base 1-1, the displacement shaft 1-4 is arranged between the two side walls, and the motor 1-5 is fixed on one side wall.
The side wall is also provided with a stabilizing block corresponding to the end part of the winding shaft 3-4, and the stabilizing block is provided with a cylindrical groove coaxial with the winding shaft 3-4; the end part of the winding shaft 3-4 can extend into the cylindrical groove, so that the stability and the limit of the winding shaft 3-4 are realized.
Example 2:
the embodiment provides a method for manufacturing a high-temperature-resistant displacement sensor probe based on a planar coil, which is manufactured by using the device in embodiment 1 and specifically comprises the following steps:
the method comprises the following steps: winding a raw material metal wire of the planar coil on a large wire wheel, tensioning the raw material metal wire by a small wire wheel, then penetrating through a wire feeding conical head, and penetrating the metal wire through a through hole of a fixed clamping piece along a winding shaft and fixing the metal wire on the winding shaft;
step two: the positions of the wire feeding unit and the wire winding driving unit are adjusted through a motor; then adjusting the relative position of a fixed clamping piece and a winding shaft in the planar coil fixing unit through a displacement controller to enable the winding shaft to penetrate through a through hole of the fixed clamping piece;
step three: the position between the first bracket and the second bracket is adjusted through the displacement controller, the second fixed clamping piece is accurately controlled to enable the winding shaft to penetrate through the through hole of the fixed clamping piece, and then the distance between the two fixed clamping pieces is adjusted to reach the thickness of the target planar coil;
step four: after the metal wire and each part are fixed, starting a winding motor, driving a winding shaft to rotate to drive the metal wire to form a planar coil in the gap between the two fixing clamping pieces, and stopping the winding motor;
step five: the displacement platform is adjusted through the motor, and the winding motor drives the coupler and the winding shaft to axially move away from the position of the fixed clamping piece;
step six: the two fixed clamping pieces are disassembled from the clamping piece fixing frame, and the ceramic sheets and the formed planar coil at the centers of the two fixed clamping pieces are taken down simultaneously; the damage of corrosive gas in the gas turbine to the induction coil can be prevented, the service life of the induction coil is prolonged, and the method can be used for displacement measurement in an ultrahigh temperature environment.
Step seven: and (3) packaging gaps between the ceramic plates and the planar coil by using ceramic glue, preventing the coil material from being influenced by a high-temperature corrosion environment, and fixing the shape and the position of the planar coil to obtain the sensor probe.
The coil material metal wire can be metal wires with different diameters, in the embodiment, a platinum wire with the diameter of 0.2mm is adopted for manufacturing a displacement measuring sensor capable of resisting the temperature of more than 1000 ℃; the size of the planar coil is determined by the number of rotating turns of the winding motor, the winding motor of the embodiment winds 12 turns, and the number of turns of the manufactured coil is 12 turns; the ceramic clamping piece is made of the same material as the packaging ceramic adhesive in advance, so that the consistent thermal expansion coefficient of the packaged sensor material is ensured.
Claims (7)
1. A high-temperature resistant displacement sensor probe manufacturing device based on a planar coil is characterized by comprising a displacement control unit (1), a wire feeding unit (2) and a winding driving unit (3) which are arranged on the displacement control unit (1), and a planar coil fixing unit (4) which is detachably matched with the winding driving unit (3);
the displacement control unit (1) comprises a base (1-1), a sliding rail (1-2) arranged on the base (1-1), a displacement platform (1-3) which is arranged on the sliding rail (1-2) and can move along the sliding rail (1-2), a displacement shaft (1-4) which is connected with the displacement platform (1-3) in a penetrating way and is parallel to the sliding rail (1-2), and a motor (1-5) which is connected with the displacement shaft (1-4);
the wire feeding unit (2) comprises a fixed seat (2-1) arranged on the displacement platform (1-3), a large wire wheel (2-2) arranged on the fixed seat (2-1), a small wire wheel (2-3) and a wire feeding conical head (2-4);
the winding driving unit (3) comprises a fixed plate (3-1) arranged on the displacement platform (1-3), a winding motor (3-2) arranged on the fixed plate (3-1), a coupler (3-3) connected with the winding motor (3-2) and a winding shaft (3-4) coaxially connected with the coupler (3-3); the wire feeding conical head (2-4) points to the winding shaft (3-4); the winding shaft (3-4) is parallel to the displacement shaft (1-4);
the planar coil fixing unit (4) comprises two mutually parallel and opposite fixed clamping pieces (4-1), a clamping piece fixing frame (4-2), a fixing frame displacement table (4-3) and a displacement controller (4-4); the fixed clamping pieces (4-1) are all arranged on the clamping piece fixing frame (4-2), and the distance between the two fixed clamping pieces (4-1) is adjustable; the winding shaft (3-4) penetrates through the two fixed clamping pieces (4-1); the clamping piece fixing frame (4-2) is connected with a fixing frame displacement table (4-3), and the fixing frame displacement table (4-3) is connected with a displacement controller (4-4);
the clamping piece fixing frame (4-2) comprises a first support (4-2-1) and a second support (4-2-2) with adjustable distance; the fixed frame displacement table (4-3) comprises a first fixed frame displacement table (4-3-1) used for mounting a first support (4-2-1) and a second fixed frame displacement table (4-3-2) used for mounting a second support (4-2-2), the first fixed frame displacement table (4-3-1) is fixed on the base (1-1), a slide way is arranged on the first fixed frame displacement table (4-3-1), and the slide way is parallel to the winding shaft (3-4); the second fixed frame displacement table (4-3-2) is arranged on the slideway and can move along the slideway;
the two fixed clamping pieces (4-1) are respectively a first fixed clamping piece and a second fixed clamping piece, the first fixed clamping piece is arranged on the first support (4-2-1), and the second fixed clamping piece is arranged on the second support (4-2-2); the displacement controller (4-4) can control the second fixing frame displacement table (4-3-2) to slide on the slideway, so that the distance between the first bracket (4-2-1) and the second bracket (4-2-2) is adjusted, and the distance between the first fixing clamping piece and the second fixing clamping piece is further controlled;
the fixed clamping piece (4-1) comprises a fixed clamping piece upper part (4-1-1) and a fixed clamping piece lower part (4-1-2) which can be spliced into a round fixed clamping piece (4-1), and the fixed clamping piece upper part (4-1-1) and the fixed clamping piece lower part (4-1-2) are hinged to open and close the fixed clamping piece (4-1); the wall surfaces of the upper part (4-1-1) of the fixed clamping piece and the lower part (4-1-2) of the fixed clamping piece, which are contacted, are provided with opposite arc-shaped grooves, when the fixed clamping piece (4-1) is closed, the two arc-shaped grooves are butted to form a through hole (4-1-3) which penetrates through the fixed clamping piece (4-1), the through hole (4-1-3) of the two fixed clamping pieces (4-1) is coaxial with the winding shaft (3-4), and the winding shaft (3-4) can penetrate through the through hole (4-1-3).
2. The device for manufacturing the high-temperature-resistant displacement sensor probe based on the planar coil as claimed in claim 1, wherein a bolt is arranged between the upper part (4-1-1) of the fixed clamping piece and the lower part (4-1-2) of the fixed clamping piece, and the bolt can be tightened to enable the upper part (4-1-1) of the fixed clamping piece and the lower part (4-1-2) of the fixed clamping piece to be tightly spliced to realize the closing of the fixed clamping piece (4-1); the fixed clamping piece (4-1) can be opened by loosening the bolt; the opening and closing of the fixed clip (4-1) is used for realizing the installation of the fixed clip (4-1) on the winding shaft (3-4).
3. The device for manufacturing the high-temperature-resistant displacement sensor probe based on the planar coil is characterized in that one surface of the fixed clamping piece (4-1) is a plane, the other surface of the fixed clamping piece is a convex conical surface, and the through hole (4-1-3) penetrates through the center of the convex conical surface; the convex conical surface is provided with a circular groove taking the through hole (4-1-3) as the center; the convex conical surfaces of the two fixed clamping pieces (4-1) are opposite.
4. The device for manufacturing the high-temperature-resistant displacement sensor probe based on the planar coil is characterized in that the fixed seat (2-1) is vertically arranged on the displacement platform (1-3), the wire feeding conical head (2-4) is arranged on a rotating shaft vertical to the fixed seat (2-1), the wire feeding conical head (2-4) can rotate around the rotating shaft, and the plane where the wire feeding conical head (2-4) rotates is vertical to the winding shaft (3-4); the wire feeding conical head (2-4) is a central through structure so as to enable a metal wire to pass through;
the large wire wheel (2-2) and the small wire wheel (2-3) are both vertically arranged on the fixed seat (2-1), and the large wire wheel (2-2), the small wire wheel (2-3) and the wire feeding conical head (2-4) are positioned on the same side of the fixed seat (2-1).
5. The device for manufacturing the planar coil-based high-temperature-resistant displacement sensor probe is characterized in that two vertical side walls which are parallel to each other are arranged at two ends of the base (1-1), the displacement shaft (1-4) is arranged between the two side walls, and the motor (1-5) is fixed on one of the side walls.
6. The device for manufacturing the high-temperature-resistant displacement sensor probe based on the planar coil as claimed in claim 5, wherein the side wall is further provided with a stabilizing block corresponding to the end of the bobbin (3-4), and the stabilizing block is provided with a cylindrical groove coaxial with the bobbin (3-4); the end part of the winding shaft (3-4) can extend into the cylindrical groove, so that the stability and the limit of the winding shaft (3-4) are realized.
7. A method for manufacturing a high-temperature-resistant displacement sensor probe based on a planar coil is characterized in that the method adopts the device of any one of claims 1 to 6, and specifically comprises the following steps:
the method comprises the following steps: winding a raw material metal wire of the planar coil on a large wire wheel, tensioning the raw material metal wire by a small wire wheel, then penetrating through a wire feeding conical head, and penetrating the metal wire through a through hole of a fixed clamping piece along a winding shaft and fixing the metal wire on the winding shaft;
step two: the positions of the wire feeding unit and the wire winding driving unit are adjusted through a motor; then adjusting the relative position of a fixed clamping piece and a winding shaft in the planar coil fixing unit through a displacement controller to enable the winding shaft to penetrate through a through hole of the fixed clamping piece;
step three: the position between the first bracket and the second bracket is adjusted through the displacement controller, the two fixed clamping pieces are accurately controlled to enable the winding shaft to penetrate through the through holes of the fixed clamping pieces, and then the distance between the two fixed clamping pieces is adjusted to reach the thickness of the target planar coil;
step four: after the metal wire and each part are fixed, starting a winding motor, driving a winding shaft to rotate to drive the metal wire to form a planar coil in the gap between the two fixing clamping pieces, and stopping the winding motor;
step five: the displacement platform is adjusted through the motor, and the winding motor drives the coupler and the winding shaft to axially move away from the position of the fixed clamping piece;
step six: the two fixed clamping pieces are disassembled from the clamping piece fixing frame, and the ceramic sheets and the formed planar coil at the centers of the two fixed clamping pieces are taken down simultaneously;
step seven: and packaging gaps between the ceramic plates and the planar coil by using ceramic glue, and fixing the shape and position of the planar coil to obtain the sensor probe.
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Effective date of registration: 20220309 Address after: 712000 floor 20, block 4-A, Xixian financial port, Fengdong new town energy gold trade zone, Xixian new area, Xi'an City, Shaanxi Province Patentee after: Xi'an ruipujiete Power Technology Co.,Ltd. Address before: 710068 No. 127 Youyi West Road, Shaanxi, Xi'an Patentee before: Northwestern Polytechnical University |