CN104715881A - Alternating magnetic field generation device - Google Patents
Alternating magnetic field generation device Download PDFInfo
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- CN104715881A CN104715881A CN201510020269.0A CN201510020269A CN104715881A CN 104715881 A CN104715881 A CN 104715881A CN 201510020269 A CN201510020269 A CN 201510020269A CN 104715881 A CN104715881 A CN 104715881A
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- magnetic field
- alternating magnetic
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Abstract
An alternating magnetic field generation device comprises a machine frame, two permanent magnets, a speed adjustable motor, a reduction gear, a synchronous belt drive mechanism and a tensioning wheel, wherein the machine frame is composed of a base, guide rails, four trapezoidal plates and cross beams; the guide rails are fixed on two sides of the base; the four trapezoidal plates are arranged in pairs and arranged on the corresponding guide rails; the lower portions between each pair of opposite trapezoidal plates are connected through two cross beams; cross shafts are arranged in the middles of two sides of the two permanent magnets respectively and penetrate through through holes in the upper portions of the trapezoidal plates to be connected with the machine frame; the planes where the two permanent magnets are parallel or intersected; the distance between the two permanent magnet cross shafts is 2-5 times the width of the permanent magnets; two transmission wheels of the synchronous belt drive mechanism with the tensioning wheel are installed on the two permanent magnet cross shafts on the outer side of the trapezoidal plate on one side of the machine frame; the speed adjustable motor is installed on the other side of the machine frame; the reduction gear is installed on the permanent magnet cross shaft on the outer side of one of the trapezoidal plate. The alternating magnetic field generation device has the advantages of being simple in structure, saving energy, being environmentally friendly, and being high in practicability and stability.
Description
Technical field
The invention belongs to technical field of laser processing, particularly a kind of alternating magnetic field generating means.
Background technology
Laser melting coating is the new technology that a kind of economic benefit is very high, and it can prepare high performance alloy surface on cheap metal base material, reduces costs, and saves valuable Rare Metals Materials.Have cooling rate fast, coating dilution rate is low, heat input and distortion less, technical process such as easily to be automated at the advantage, and laser melting and coating technique is widely used.But may number of drawbacks be produced in cladding layer, mainly comprise pore, crackle, distortion and surface irregularity, make it realize industrialization not yet completely at home and abroad.
Additional alternating magnetic field laser melting and coating technique, the feature that attachment device is simple, input cost is low owing to having, high efficiency, power consumption are few and receiving much concern.Additional alternating magnetic field can produce electromagnetic agitation to a certain degree in molten bath, liquid metal is made to occur periodically stirring movement, change the mass transfer in molten pool metal crystallization process and heat transfer, thus change the crystallization direction of crystal grain, thinning microstructure, reduce segregation, reduce the sensitiveness of solidification cracking and pore.
Existing alternating magnetic field generating means is many according to electromagnetic theory, and produced by the copper coil passing into alternating current, manufacturing cost and use cost is high, and running hours heating is serious, is not suitable for industrial production.
Summary of the invention
The object of the present invention is to provide that a kind of structure is simple, energy-conserving and environment-protective, practicality and the strong alternating magnetic field generating means of stability.
The present invention includes frame, two pieces of permanent magnets, adjustable speed motor, reduction gearing, synchronous belt drive mechanism and regulating wheels, wherein, frame is made up of base, guide rail, trapezoidal plate and crossbeam, guide rail is fixed on base both sides, four trapezoidal plates two one group are located on guide rail accordingly, can at slide on rails, each bottom organized between relative trapezoidal plate is connected by two crossbeams, the middle part of the both sides of two pieces of permanent magnets is respectively equipped with transverse axis, the through hole that transverse axis is each passed through each trapezoidal plate top is connected with frame, the plane at two pieces of permanent magnet places is parallel to each other or intersects, the spacing of two pieces of permanent magnet transverse axis is 2 ~ 5 times of permanent magnet width, the distance between permanent magnet can be adjusted by guide rail, two drives that the synchronous drive mechanism of regulating wheel is housed are arranged on two permanent magnet transverse axis outside the trapezoidal plate of frame side respectively, adjustable speed motor is located at the opposite side of frame, reduction gearing is arranged on the permanent magnet transverse axis outside one of them trapezoidal plate, adjustable speed motor is connected with permanent magnet by reduction gearing, make the relative position synchronous rotary that two pieces of permanent magnets keep certain.
Using method of the present invention:
1, driven by motor two pieces of permanent-magnet synchronous rotate, between two pieces of permanent magnets, produce alternating magnetic field.
When 2, changing the angle of two pieces of permanent magnets, produce the corresponding change of functional image type of alternating magnetic field.
3, regulate institute to produce the frequency of alternating magnetic field: the rotating speed of adjustment motor, permanent magnet rotary speed changes thereupon, thus the frequency respective change of alternating magnetic field.
4, institute is regulated to produce the amplitude of alternating magnetic field: movement two pieces of permanent magnets change its spacing on guide rail, adjust the amplitude of produced alternating magnetic field.
The present invention compared with prior art tool has the following advantages: structure is simple, energy-conserving and environment-protective, can produce the alternating magnetic field of multiple Changing Pattern, practicality and stability strong.
Accompanying drawing explanation
Fig. 1 is structural representation sketch of the present invention.
The change curve of symmetrical centre place magnetic field intensity during Fig. 2 to be the present invention's two pieces of permanent magnets be parastate synchronous rotary one week.
The change curve of symmetrical centre place magnetic field intensity during Fig. 3 to be the present invention's two pieces of permanent magnets be 60 degree of angle synchronous rotaries one week.
Fig. 4 is the functional arrangement under the present invention's two kinds of different motor speeds in alternating magnetic field one-period.
Fig. 5 is the functional arrangement under the different permanent magnet spacing of the present invention two kinds in alternating magnetic field one-period.
Embodiment
In a kind of alternating magnetic field generating means schematic diagram shown in Fig. 1, frame is made up of base 1, guide rail 2, trapezoidal plate 3 and crossbeam 4, guide rail is fixed on base both sides, four trapezoidal plates two one group are located on guide rail accordingly, can at slide on rails, each bottom organized between relative trapezoidal plate is connected by two crossbeams; The middle part of the both sides of two pieces of permanent magnets 5 is respectively equipped with transverse axis, the through hole that transverse axis is each passed through each trapezoidal plate top is connected with frame, the plane at two pieces of permanent magnet places is parallel to each other or intersects, the spacing of two pieces of permanent magnet transverse axis is 2 ~ 5 times of permanent magnet width, two drives 7 that the synchronous drive mechanism of regulating wheel 6 is housed are arranged on two permanent magnet transverse axis outside the trapezoidal plate of frame side respectively, adjustable speed motor 9 is located at the opposite side of frame, and reduction gearing 8 is arranged on the permanent magnet transverse axis outside one of them trapezoidal plate.
Using method of the present invention:
1, driven by motor two pieces of permanent-magnet synchronous rotate, and between two pieces of permanent magnets, produce alternating magnetic field as shown in Figure 2, wherein X-axis represents the angle that in one-period, two pieces of permanent-magnet synchronous turn over, and Y-axis represents the magnetic field intensity at two pieces of permanent magnet symmetrical centre places.
When 2, changing the angle of two pieces of permanent magnets, produce alternating magnetic field functional image type be different from Fig. 2, such as two pieces of permanent magnets are 60 degree of angle synchronous rotaries, magnetic field in one-period as shown in Figure 3, wherein X-axis represents that the angle that two pieces of permanent-magnet synchronous turn over, Y-axis represent the magnetic field intensity at two pieces of permanent magnet symmetrical centre places.
3, institute is regulated to produce the frequency of alternating magnetic field: the rotating speed of adjustment motor, permanent magnet rotary speed changes thereupon, thus the frequency respective change of alternating magnetic field, as shown in Figure 4, wherein X-axis represents the angle that two pieces of permanent-magnet synchronous turn over, Y-axis represents the magnetic field intensity at two pieces of permanent magnet symmetrical centre places, and curve 1 and curve 2 represent the functional image of alternating magnetic field under two kinds of different motor speeds.
4, institute is regulated to produce the amplitude of alternating magnetic field: movement two pieces of permanent magnets change its spacing on guide rail, adjust the amplitude of produced alternating magnetic field, the functional image of alternating magnetic field changes, as shown in Figure 5, wherein X-axis represents the angle that two pieces of permanent-magnet synchronous turn over, Y-axis represents the magnetic field intensity at two pieces of permanent magnet symmetrical centre places, and curve 1 and curve 2 represent the functional image of alternating magnetic field under two kinds of different permanent magnet spacing.
Claims (2)
1. an alternating magnetic field generating means, it is characterized in that: it comprises frame, permanent magnet, adjustable speed motor, reduction gearing, synchronous belt drive mechanism and regulating wheel, wherein, frame is made up of base, guide rail, trapezoidal plate and crossbeam, guide rail is fixed on base both sides, four trapezoidal plates two one group are located on guide rail accordingly, and each bottom organized between relative trapezoidal plate is connected by two crossbeams, the middle part of the both sides of two pieces of permanent magnets is respectively equipped with transverse axis, the through hole that transverse axis is each passed through each trapezoidal plate top is connected with frame, the plane at two pieces of permanent magnet places is parallel to each other or intersects, the spacing of two pieces of permanent magnet transverse axis is 2 ~ 5 times of permanent magnet width, two drives that the synchronous drive mechanism of regulating wheel is housed are arranged on two permanent magnet transverse axis outside the trapezoidal plate of frame side respectively, adjustable speed motor is located at the opposite side of frame, reduction gearing is arranged on the permanent magnet transverse axis outside one of them trapezoidal plate, adjustable speed motor is connected with permanent magnet by reduction gearing.
2. the using method of a kind of alternating magnetic field generating means according to claim 1, is characterized in that: (1) driven by motor two pieces of permanent-magnet synchronous rotate, between two pieces of permanent magnets, produce alternating magnetic field; When the angle of (2) two pieces of permanent magnets changes, produce the corresponding change of functional image type of alternating magnetic field; (3) regulate institute to produce the frequency of alternating magnetic field: the rotating speed of adjustment motor, permanent magnet rotary speed changes thereupon, thus the frequency respective change of alternating magnetic field; (4) institute is regulated to produce the amplitude of alternating magnetic field: movement two pieces of permanent magnets change its spacing on guide rail, adjust the amplitude of produced alternating magnetic field.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510020269.0A CN104715881B (en) | 2015-01-15 | 2015-01-15 | A kind of alternating magnetic field generating means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510020269.0A CN104715881B (en) | 2015-01-15 | 2015-01-15 | A kind of alternating magnetic field generating means |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104715881A true CN104715881A (en) | 2015-06-17 |
| CN104715881B CN104715881B (en) | 2016-10-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510020269.0A Expired - Fee Related CN104715881B (en) | 2015-01-15 | 2015-01-15 | A kind of alternating magnetic field generating means |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107017071A (en) * | 2017-04-28 | 2017-08-04 | 华中科技大学 | A kind of alternating magnetic field generating means and alternating magnetic field production method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86100458A (en) * | 1986-01-22 | 1987-01-31 | 鞍山钢铁公司 | Permanent magnetism takes off magnetism method and device |
| CN2803431Y (en) * | 2004-09-01 | 2006-08-09 | 北京威华特医疗科技开发公司 | Device for generating high strength non-uniform alternating magnetic field from roller type rotary permanent magenet |
| US7479859B2 (en) * | 2006-03-08 | 2009-01-20 | Jack Gerber | Apparatus and method for processing material in a magnetic vortex |
| US20090076324A1 (en) * | 2006-07-13 | 2009-03-19 | Hitachi Metals, Ltd. | Magnetic field control method and magnetic field generator |
| US20090231073A1 (en) * | 2005-09-30 | 2009-09-17 | Hitachi Metals, Ltd. | Magnetic Field Control Method and Magnetic Field Generator |
-
2015
- 2015-01-15 CN CN201510020269.0A patent/CN104715881B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86100458A (en) * | 1986-01-22 | 1987-01-31 | 鞍山钢铁公司 | Permanent magnetism takes off magnetism method and device |
| CN2803431Y (en) * | 2004-09-01 | 2006-08-09 | 北京威华特医疗科技开发公司 | Device for generating high strength non-uniform alternating magnetic field from roller type rotary permanent magenet |
| US20090231073A1 (en) * | 2005-09-30 | 2009-09-17 | Hitachi Metals, Ltd. | Magnetic Field Control Method and Magnetic Field Generator |
| US7479859B2 (en) * | 2006-03-08 | 2009-01-20 | Jack Gerber | Apparatus and method for processing material in a magnetic vortex |
| US20090076324A1 (en) * | 2006-07-13 | 2009-03-19 | Hitachi Metals, Ltd. | Magnetic field control method and magnetic field generator |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107017071A (en) * | 2017-04-28 | 2017-08-04 | 华中科技大学 | A kind of alternating magnetic field generating means and alternating magnetic field production method |
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| CN104715881B (en) | 2016-10-19 |
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Granted publication date: 20161019 Termination date: 20190115 |
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