CN103884267A - Structure of magnetostrictive displacement sensor detecting device - Google Patents
Structure of magnetostrictive displacement sensor detecting device Download PDFInfo
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- CN103884267A CN103884267A CN201410125680.XA CN201410125680A CN103884267A CN 103884267 A CN103884267 A CN 103884267A CN 201410125680 A CN201410125680 A CN 201410125680A CN 103884267 A CN103884267 A CN 103884267A
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Abstract
A structure of a magnetostrictive displacement sensor detecting device comprises a main block sleeve, a main block sleeve socket, a long linking rod, a spring hook damper, a position magnet, a waveguide wire and sound pick-ups. The long linking rod is cylindrical, hollow and linkable, the long linkage rod is sleeved with the position magnet in a sliding mode, the waveguide wire is arranged in a hollow inner cavity of the long rod, the sound pick-ups are connected with the waveguide wire, the position magnet comprises a stainless ring with eight inserting grooves, eight magnet bodies matched with the inserting grooves in size and screws for fixing the magnet bodies, and the directions of the polar ends of the magnet bodies are consistent. The number of the adopted magnet bodies is greatly reduced through the design of the position magnet, use efficiency is improved, and stability of the technical effect is guaranteed.
Description
technical field
The present invention relates to a kind of magnetostrictive displacement sensor pick-up unit, particularly the structure of this displacement detector and structure.
Background technology
Chinese patent application CN201310144936.7 relates to a kind of magnetostrictive displacement sensor pick-up unit, a kind of magnetostrictive displacement sensor measurement mechanism, comprise: the support of cylindrical and hollow, suit is arranged on position magnet on described support, is arranged on the waveguide filament in the hollow cavity of described support, the acoustic pickup being connected with described waveguide filament slidably, described position magnet is that the screw that four magnet coordinating with the stainless steel annulus of four slots and size and described slot and fixed magnet are used forms, and magnet polarity extreme direction is consistent.
Position magnet in background technology is four magnet slots, substantially enough in theory, but in actual measurement, magnetostrictive effect is still not enough, need to improve magnetostrictive effect by technical scheme.
Also there is following defect in the device in background technology: stock is regular length, when measurement, cannot increase or shorten according to actual needs, original device shortcoming three: main cover piece part, the main cover piece of original device part is used for laying acoustic pickup, waveguide (waveguide filament), enameled wire, the passage of link external circuit etc., but design is not quite reasonable, particularly, in frequent test, enameled wire etc. are unfixing, easily rupture or damage.In newly-designed main cover piece, the cabling of each device is had to passage separately, be difficult for producing and intersect, design separately fixing external connecting interface, ensure the stable transfer of signal, and not fragile, and be the groove that waveguide (waveguide filament) in main cover piece has increased a filled silicon rubber specially.Expand the recess space of laying acoustic pickup, made acoustic pickup type not only can lay coil type acoustic pickup, ceramic pick-up can also be installed, be applicable to laying dissimilar acoustic pickup.
Original device shortcoming four: original device end is without special damping unit, and end is difficult for adding silicon rubber, new equipment specialized designs, spring carrier arm damper.
Summary of the invention
The object of the invention is to overcome existing above-mentioned deficiency in prior art, a kind of structure of magnetostrictive displacement sensor pick-up unit is provided.To reach reducing on the basis of magnet consumption, improve the service efficiency of magnet, ensure the stable of technique effect.
In order to realize foregoing invention object, the invention provides following technical scheme:
A kind of magnetostrictive displacement sensor pick-up unit, comprise: main cover, main cover sleeve, cylindrical and hollow, linkable chain extension bar, spring carrier arm damper, suit is arranged on position magnet on described chain extension bar, is arranged on the waveguide filament in the hollow cavity of described stock, the acoustic pickup being connected with described waveguide filament slidably
Described position magnet comprises the screw that eight magnet matching with the stainless steel annulus of eight slots and size and described slot and fixed magnet are used, and described magnet polarity extreme direction is consistent.The design of position magnet greatly reduces the consumption of magnet, has improved service efficiency, has ensured the stable of technique effect.
Described position magnet is circular cylinder, the center of described position magnet arranges hollow cylindrical hole, described cylindrical hole is used for through described stock, described position magnet is provided with 8 hollow cylindrical side openings that are evenly distributed on magnet side, ring-like position, and described hollow cylindrical side opening connects and is arranged between the outside and described hollow cylindrical hole of described position magnet.
Described hollow cylindrical side opening inwall is provided with the first internal thread, and described magnet outer wall is provided with the first external thread, and described the first internal thread mates mutually with described the first external thread.
The leading section of described main cover piece is equilateral hexagon cylinder, for stablizing the putting position of whole device;
Described leading section rear side is connected with right cylinder, and described right cylinder arranges the second external thread and the second internal thread, and described the second internal thread is for closing with chain extension bar junction button;
The external thread that described the second external thread is M40*1, described the second external thread is for linking fastening with main sleeve;
The internal thread that described the second internal thread is M10*1;
Described main cover sleeve is hollow circular cylinder, and inwall one side is provided with the 3rd internal thread, and described the 3rd internal thread is for linking fastening with described the second external thread;
Main cover sleeve is a hollow circular cylinder, and the internal thread that described the 3rd internal thread is M40*1, for linking fastening with described the second external thread; Main cover sleeve is for the protection of main inner acoustic pickup, the circuit etc. of placing of cover.
The middle part front end of described main cover piece is provided with trapezoidal groove, and described trapezoidal groove is for arranging the acoustic pickup of two series connection; In described groove, be provided with two circular holes, for guiding described microphone lead cabling from behind;
The middle part middle-end of described main cover piece is provided with big hole and small sircle hole, described big hole for through with set wave seal wire, described small sircle hole for through with fixing enameled wire;
The rear end, middle part of described main cover piece is provided with the first rectangular recess, for single acoustic pickup is set;
The German-Chinese portion of described main cover piece rear end is provided with rectangular parallelepiped hole, and described rectangular parallelepiped hole is used for guiding described microphone lead therefrom to pass;
The rear portion of described main cover piece is provided with the second rectangular recess, for arranging and filled silicon rubber; Play the effect of decay damping unit;
The afterbody of described main cover piece is provided with the first rectangular-shaped hole and the second rectangular-shaped hole, and described the first rectangular-shaped hole and the second rectangular-shaped hole, for arranging and link cap, input or output signal by wiring cap.
Described chain extension bar comprises at least one hollow cylindrical stock, and long 0.5 meter of described hollow cylindrical stock, is threaded connection between described hollow cylindrical stock.
Described chain extension bar is to link as required the hollow cylindrical stock that combination lengthens or shortens, long 0.5 meter of every segment length's bar;
Described hollow cylindrical stock has the 4th internal thread of M10*1, for the combination link (while increasing length) between hollow cylindrical stock;
Chain extension bar is that interior circular diameter is 9mm, the hollow circular cylinder that outside diameter is 10mm;
Chain extension bar is provided with the screw thread all round of M10*1, for link with the internal thread combination of main cover part, or connects (when increase length) with chain extension bar combination chain;
The structure of described magnetostrictive displacement sensor pick-up unit also comprises top deduction cap, described top deduction cap comprises deduction cap chassis, top and is connected with hollow matrix cylinder, described hollow matrix cylinder is provided with the 3rd external thread, and described the 3rd external thread is for fastening link with chain extension bar;
Described hollow matrix cylinder is affiliated to and is connected with it for spring carrier arm damper;
Described top deduction cap outer wall is hollow circular cylinder, not affected by external force or something outside contacts for the protection of inside hook;
The external thread that described the 3rd external thread is M10*1, for fastening link with chain extension bar;
The chassis of described top deduction cap is that diameter is the deduction cap chassis, top of 12mm, for partially overlapping with chain extension bar, makes the fixing stretching of waveguide (silk).
The structure of described magnetostrictive displacement sensor pick-up unit also comprises spring carrier arm damper, and the end of described spring carrier arm damper is the first hook type cylinder, for being affiliated to and linking with described hollow matrix cylinder;
Described spring carrier arm damper middle part arranges spring;
Described spring is used for connecting described the first hook type cylinder and described the second hook type cylinder, for suitable stretching or shortening waveguide (silk) length, waveguide (silk) can excessively not ruptured because of pulling force, or because the too small waveguide (silk) that makes of pulling force contacts with chain extension bar tube wall, play a pulling force buffer effect;
Described spring carrier arm damper afterbody first half arranges the second hook type cylinder, and latter half is hollow semicylinder.
Described the first hook type cylinder is identical with the second hook type column structure, the second hook type cylinder is for hooking waveguide (silk), filled silicon rubber in the middle of hollow semicylinder, parcel waveguide (silk) in the middle of silicon rubber, absorbs for the damping of waveguide (silk) end signal.
compared with prior art, beneficial effect of the present invention:
Described position magnet comprises the screw that eight magnet matching with the stainless steel annulus of eight slots and size and described slot and fixed magnet are used, and described magnet polarity extreme direction is consistent.The design of position magnet greatly reduces the consumption of magnet, has improved service efficiency, has ensured the stable of technique effect.
Brief description of the drawings:
Fig. 1 is the overall construction drawing of the structure of magnetostrictive displacement pick-up unit of the present invention;
Fig. 2 is the structural drawing of the top deduction cap of the structure of magnetostrictive displacement pick-up unit of the present invention;
Fig. 3 is the structural drawing of the spring carrier arm damper of the structure of magnetostrictive displacement pick-up unit of the present invention;
Fig. 4 is the structural drawing of the main cover piece of the structure of magnetostrictive displacement pick-up unit of the present invention.
Fig. 5 is the magnet arrangement skeleton view of the structure of magnetostrictive displacement pick-up unit of the present invention position;
Fig. 6 is the structure skeleton view of main cover sleeve of the structure of magnetostrictive displacement pick-up unit of the present invention.
Embodiment
Below in conjunction with test example and embodiment, the present invention is described in further detail.But this should be interpreted as to the scope of the above-mentioned theme of the present invention only limits to following embodiment, all technology realizing based on content of the present invention all belong to scope of the present invention.
As shown in Figure 1, a kind of structure of magnetostrictive displacement sensor pick-up unit, comprise: main cover 5, main cover sleeve 1, cylindrical and hollow, linkable chain extension bar 4, spring carrier arm damper, suit is arranged on position magnet 2 on described chain extension bar 4, is arranged on the waveguide filament in the hollow cavity of described stock, the acoustic pickup being connected with described waveguide filament slidably
As shown in Figure 5, described position magnet 2 comprises the screw that eight magnet matching with the stainless steel annulus of eight slots and size and described slot and fixed magnet are used, and described magnet polarity extreme direction is consistent.The design of position magnet 2 greatly reduces the consumption of magnet, has improved service efficiency, has ensured the stable of technique effect.
Described position magnet 2 is circular cylinder, the center of described position magnet arranges hollow cylindrical hole 21, described cylindrical hole 21 is for passing described stock, described position magnet 2 is provided with 8 hollow cylindrical side openings 22 that are evenly distributed on magnet 2 sides, ring-like position, and described hollow cylindrical side opening 22 connects and is arranged between the outside and described hollow cylindrical hole 21 of described position magnet 2.
Described hollow cylindrical side opening 22 inwalls are provided with the first internal thread, and described magnet outer wall is provided with the first external thread, and described the first internal thread mates mutually with described the first external thread.
The radius of described circular cylinder is 40mm, and thickness is 12mm, and there is many places cylindrical hole inside, for laying magnet etc.;
The radius in described hollow cylindrical hole is 14mm, for passing chain extension bar, and moves by slip in chain extension bar 4 outsides;
Ring-like position magnet 2 is 8 hollow cylindrical side openings 22 that are evenly distributed in magnet 2 sides, ring-like position, circular hole gos deep into center always, each hole inwall is the inside spin of model M6*1, for placing the screw with special cylinder-shaped magnets such as neodymium iron borons, rotation by screw is brought into, the special cylinder-shaped magnets such as eight neodymium iron borons are advanced towards center, then the waveguide in chain extension bar 4 (silk) is produced to magnetic fields.
As shown in Figure 4, the leading section of described main cover piece 5 is equilateral hexagon cylinder 10, for stablizing the putting position of whole device;
Described leading section rear side is connected with right cylinder 12, and described right cylinder 12 arranges the second external thread 11 and the second internal thread, and described the second internal thread is for being connected fastening with chain extension bar 4;
The external thread that described the second external thread 11 is M40*1, described the second external thread 11 is for linking fastening with main sleeve 1;
The internal thread that described the second internal thread is M10*1;
As shown in Figure 6, described main cover sleeve 1 is hollow circular cylinder 23, and inwall one side is provided with the 3rd internal thread 24, and described the 3rd internal thread 24 is for linking fastening with described the second external thread 11;
The middle part front end of described main cover piece 5 is provided with trapezoidal groove 13, and described trapezoidal groove 13 is for arranging the acoustic pickup of two series connection; In described groove, be provided with two circular holes, for guiding described microphone lead cabling from behind;
The middle part middle-end of described main cover piece 5 is provided with big hole 15 and small sircle hole 14, and described big hole 15 is for passing and set wave seal wire, and described small sircle hole 14 is for passing and fixing enameled wire;
The rear end, middle part of described main cover piece 5 is provided with the first rectangular recess 17, for single acoustic pickup is set;
The rear end, middle part of described main cover piece 5 is provided with rectangular parallelepiped hole 16, and described rectangular parallelepiped hole 16 is for guiding described microphone lead therefrom to pass;
The rear portion of described main cover piece 5 is provided with the second rectangular recess 18, for arranging and filled silicon rubber; Play the effect of decay damping unit;
The afterbody of described main cover piece 5 is provided with the first rectangular-shaped hole and the second rectangular-shaped hole 19, and described the first rectangular-shaped hole and the second rectangular-shaped hole 19, for arranging and link cap, input or output signal by wiring cap.
As shown in fig. 1, described chain extension bar 4 comprises at least one hollow cylindrical stock, and long 0.5 meter of described hollow cylindrical stock, is threaded connection between described hollow cylindrical stock.
Described chain extension bar 4 is to link as required the hollow cylindrical stock that combination lengthens or shortens, long 0.5 meter of every segment length's bar;
Described hollow cylindrical stock has the 4th internal thread 3 of M10*1, for the combination link (while increasing length) between hollow cylindrical stock;
As shown in Figure 2, the structure of described magnetostrictive displacement sensor pick-up unit also comprises top deduction cap, described top deduction cap comprises deduction cap chassis, top 6 and is connected with hollow matrix cylinder 7, described hollow matrix cylinder is provided with the 3rd external thread, and described the 3rd external thread is for fastening link with chain extension bar 4;
Described hollow matrix cylinder is affiliated to and is connected with it for spring carrier arm damper;
Described top deduction cap outer wall is hollow circular cylinder, not affected by external force or something outside contacts for the protection of inside hook;
The external thread that described the 3rd external thread is M10*1, for fastening link with chain extension bar;
The deduction cap chassis, top that the chassis 6 of described top deduction cap is 12mm for diameter, for partially overlapping with chain extension bar, makes the fixing stretching of waveguide (silk).
As shown in Figure 3, the structure of described magnetostrictive displacement sensor pick-up unit also comprises spring carrier arm damper, and the end of described spring carrier arm damper is the first hook type cylinder 8, for being affiliated to and linking with described hollow matrix cylinder;
Described spring carrier arm damper middle part arranges spring 9;
Described spring 9 is for connecting described the first hook type cylinder 8 and described the second hook type cylinder, for suitable stretching or shortening waveguide (silk) length, waveguide (silk) can excessively not ruptured because of pulling force, or because the too small waveguide (silk) that makes of pulling force contacts with chain extension bar tube wall, play a pulling force buffer effect;
Described spring carrier arm damper afterbody first half arranges the second hook type cylinder, and latter half is hollow semicylinder 20.
Described the first hook type cylinder 8 is identical with the second hook type column structure, the second hook type cylinder is for hooking waveguide (silk), filled silicon rubber in the middle of hollow semicylinder 20, parcel waveguide (silk) in the middle of silicon rubber, absorbs for the damping of waveguide (silk) end signal.
The present invention is not limited to aforesaid embodiment.The present invention expands to any new feature or any new combination disclosing in this manual, and the arbitrary new method disclosing or step or any new combination of process.
Claims (7)
1. the structure of a magnetostrictive displacement sensor pick-up unit, comprise: main cover, main cover sleeve, cylindrical and hollow, linkable chain extension bar, spring carrier arm damper, suit is arranged on position magnet on described chain extension bar, is arranged on the waveguide filament in the hollow cavity of described stock, the acoustic pickup being connected with described waveguide filament slidably
It is characterized in that, described position magnet comprises the screw that eight magnet matching with the stainless steel annulus of eight slots and size and described slot and fixed magnet are used, and described magnet polarity extreme direction is consistent; The design of position magnet greatly reduces the consumption of magnet, has improved service efficiency, has ensured the stable of technique effect.
2. the structure of magnetostrictive displacement sensor pick-up unit as claimed in claim 1, it is characterized in that: described position magnet is circular cylinder, the center of described position magnet arranges hollow cylindrical hole, described cylindrical hole is used for through described stock, described position magnet is provided with 8 hollow cylindrical side openings that are evenly distributed on magnet side, ring-like position, and described hollow cylindrical side opening connects and is arranged between the outside and described hollow cylindrical hole of described position magnet.
3. the structure of magnetostrictive displacement sensor pick-up unit as claimed in claim 2, it is characterized in that: described hollow cylindrical side opening inwall is provided with the first internal thread, described magnet outer wall is provided with the first external thread, and described the first internal thread mates mutually with described the first external thread.
4. the structure of the magnetostrictive displacement sensor pick-up unit as described in claims 1 to 3 any one, it is characterized in that: the leading section of described main cover piece is equilateral hexagon cylinder, described leading section rear side is connected with right cylinder, described right cylinder arranges the second external thread and the second internal thread, and described the second internal thread is for closing with chain extension bar junction button;
Described main cover sleeve is hollow circular cylinder, and inwall one side is provided with the 3rd internal thread, and described the 3rd internal thread is for linking fastening with described the second external thread;
The middle part front end of described main cover piece is provided with trapezoidal groove, and described trapezoidal groove is for arranging the acoustic pickup of two series connection; In described groove, be provided with two circular holes, for guiding described microphone lead cabling from behind;
The middle part middle-end of described main cover piece is provided with big hole and small sircle hole, described big hole for through with set wave seal wire, described small sircle hole for through with fixing enameled wire;
The rear end, middle part of described main cover piece is provided with the first rectangular recess, for single acoustic pickup is set;
The rear end, middle part of described main cover piece is provided with rectangular parallelepiped hole, and described rectangular parallelepiped hole is used for guiding described microphone lead therefrom to pass;
The rear portion of described main cover piece is provided with the second rectangular recess, for arranging and filled silicon rubber;
The afterbody of described main cover piece is provided with the first rectangular-shaped hole and the second rectangular-shaped hole, and described the first rectangular-shaped hole and the second rectangular-shaped hole, for arranging and link cap, input or output signal by wiring cap.
5. the structure of the magnetostrictive displacement sensor pick-up unit as described in claims 1 to 3 any one, it is characterized in that: described chain extension bar comprises at least one hollow cylindrical stock, long 0.5 meter of described hollow cylindrical stock, is threaded connection between described hollow cylindrical stock.
6. the structure of the magnetostrictive displacement sensor pick-up unit as described in claims 1 to 3 any one, it is characterized in that: described magnetostrictive displacement sensor pick-up unit also comprises top deduction cap, described top deduction cap comprises deduction cap chassis, top and is connected with hollow matrix cylinder, described hollow matrix cylinder is provided with the 3rd external thread, and described the 3rd external thread is for fastening link with chain extension bar.
7. the structure of magnetostrictive displacement sensor pick-up unit as claimed in claim 6, it is characterized in that: described magnetostrictive displacement sensor pick-up unit also comprises spring carrier arm damper, the end of described spring carrier arm damper is the first hook type cylinder, for being affiliated to and linking with described hollow matrix cylinder;
Described spring carrier arm damper middle part arranges spring;
Described spring carrier arm damper afterbody first half arranges the second hook type cylinder, and latter half is hollow semicylinder.
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| CN201410125680.XA CN103884267B (en) | 2014-03-31 | 2014-03-31 | The structure of magnetostrictive displacement sensor detecting device |
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| CN201410125680.XA CN103884267B (en) | 2014-03-31 | 2014-03-31 | The structure of magnetostrictive displacement sensor detecting device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105157552A (en) * | 2015-07-19 | 2015-12-16 | 张昌金 | Echo enhancing method of a magnetostrictive displacement sensor and application thereof |
| CN105318859A (en) * | 2014-08-01 | 2016-02-10 | 上海凯盾工程技术有限公司 | Method for directly measuring and monitoring sedimentation deformation of underground pipeline and building structure and device of method |
| CN105973135A (en) * | 2016-07-22 | 2016-09-28 | 上海兹亚智能科技有限公司 | Magnetostrictive displacement sensor and applicable displacement measurement device |
| CN107421740A (en) * | 2017-07-31 | 2017-12-01 | 河钢股份有限公司邯郸分公司 | A kind of box-type rotating machinery bearing operating mode composite detection tool |
| CN107883861A (en) * | 2016-09-29 | 2018-04-06 | 西克埃泰克有限责任公司 | Position sensor |
| CN110375632A (en) * | 2019-08-23 | 2019-10-25 | 河北工业大学 | A kind of magnetostrictive displacement sensor suitable for big temperature range/hot environment |
| CN111457832A (en) * | 2020-05-18 | 2020-07-28 | 上海凯佛自动化仪表有限公司 | Lifting type magnetostrictive displacement transmitter |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105318859A (en) * | 2014-08-01 | 2016-02-10 | 上海凯盾工程技术有限公司 | Method for directly measuring and monitoring sedimentation deformation of underground pipeline and building structure and device of method |
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| CN110375632A (en) * | 2019-08-23 | 2019-10-25 | 河北工业大学 | A kind of magnetostrictive displacement sensor suitable for big temperature range/hot environment |
| CN111457832A (en) * | 2020-05-18 | 2020-07-28 | 上海凯佛自动化仪表有限公司 | Lifting type magnetostrictive displacement transmitter |
| CN111457832B (en) * | 2020-05-18 | 2021-06-29 | 上海凯佛自动化仪表有限公司 | Lifting type magnetostrictive displacement transmitter |
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