CN201185112Y - Energy-saving electromagnetical demagnetization machine - Google Patents
Energy-saving electromagnetical demagnetization machine Download PDFInfo
- Publication number
- CN201185112Y CN201185112Y CNU2008200717207U CN200820071720U CN201185112Y CN 201185112 Y CN201185112 Y CN 201185112Y CN U2008200717207 U CNU2008200717207 U CN U2008200717207U CN 200820071720 U CN200820071720 U CN 200820071720U CN 201185112 Y CN201185112 Y CN 201185112Y
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- autotransformer
- energy
- demagnetizer
- coil
- power supply
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Abstract
The utility model relates to an energy-saving electromagnetic demagnetizer, and belongs to the technical field of the electromechanical equipment, the structure of which comprises a demagnetizing coil (1), a power source (2), a transmission belt (3) that pass through the hollow center of the demagnetizing coil (1), a motor (4) and a water-cooling system that is arranged at the periphery of the demagnetizing coil (1); an alternative-current voltage-regulation and controlling system consists of an autotransformer (5), a stepper motor (6) and a single chip (7); the rotation shaft of the autotransformer (5) and a carbon brush (9) that is connected with the rotation shaft can be driven by the stepper motor (6) to rotate; the single chip (7) controls the stepper motor (6) so as to further control the rotation direction and the rotation speed of the carbon brush (9). A separation transformer (8) can be arranged between the autotransformer (5) and the demagnetizing coil (1). The energy-saving electromagnetic demagnetizer can guarantee that the bearing with different sizes and different specifications is in the best demagnetizing status, and can be operated safely, and can save the electric energy.
Description
Technical field
The utility model belongs to the technical field of electromechanical equipment, particularly is mainly used in a kind of electromagnetism demagnetizer of bearing demagnetization.
Background technology
Bearing is the basic components of mechanical industry, and range of application is extremely extensive.Bearing because bearing steel hardness is very high, simultaneously, requires the machining accuracy height in process of production, so all be mill processing usually.In the mill processing, the device of fixation workpiece nearly all is magnechuck or magnetic force chuck, utilizes magnetic field that workpiece is fixed, and then processing.Like this, after workpiece machines, all can have remanent magnetism.Because workpiece has remanent magnetism, then be assembled into bearing after, bearing also will have remanent magnetism.The existence of bearing remanent magnetism will influence the quality and the life-span of bearing greatly.So all there is the national standard of remanent magnetism various countries to bearing completed products.Therefore, bearing all must be through strict demagnetization before (inter process) and finished product dispatch from the factory in process of production.The bearing demagnetization has just become the requisite one procedure of Production of bearing.
General demagnetization principle is to produce the magnetic field along with time-interleaved variation, and has certain magnetic field intensity, is reduced to zero simultaneously gradually along with time intensity is descending.When being in such magnetic field space by the demagnetization workpiece, its remanent magnetism will be returned.
The demagnetization mode of tradition demagnetizer also is the present manufacturer demagnetizer of usefulness, is big air core coil of coiling, and the conveyer belt of transmission workpiece passes in the hollow centre of air core coil; The magnetic field that the demagnetizer coil produces is along with time-interleaved variation, but amplitude remains unchanged, and the decay of amplitude is to realize away from coil gradually by the displacement of workpiece on conveyer belt; In order to produce high-intensity magnetic field, must be to coil by big electric current, general every demagnetizer consumed power is all more than 50KW; In order to cool off heat coil, must pass to the recirculated water cooling, every demagnetizer water consumption every day reaches the hundreds of ton.
The utility model content
The technical problem that Energy saving demagnetiser of the present utility model will solve is, on the basis of original demagnetizer, increase exchanges pressure regulation and control assembly, make magnetic field constant amplitude inverse change relation in time be improved to amplitude and all time dependent relation of direction, so just on the basis that guarantees demagnetization effectiveness and efficient, saved lot of energy.
Structure of the present utility model comprises, part same as the prior art: degaussion coil, the power supply for degaussion coil power supply, the conveyer belt that passes in the hollow centre of degaussion coil, drive the conveyer belt running motor, be installed in the water-cooling system around the degaussion coil; It is characterized in that, AC voltage adjusting and control system are housed between power supply and degaussion coil; Described AC voltage adjusting and control system are made up of autotransformer, stepping motor, single-chip microcomputer; The input of autotransformer is electrically connected with power supply, the rotation axis of autotransformer can be by the stepping motor driven rotary with the carbon brush that is connected with rotation axis, stepping motor is electrically connected with single-chip microcomputer, the rotation direction and the slewing rate of Single-chip Controlling stepping motor and then control carbon brush.
Structure can also have isolating transformer; Described isolating transformer, input is electrically connected the output of autotransformer, and output is electrically connected the input of degaussion coil.
Described power supply is the AC power of 220V or 380V.
AC voltage adjusting in the utility model and control system utilize the mode of the automatic rotation of carbon brush of step motor control autotransformer to carry out pressure regulation; By Single-chip Controlling stepping motor rotating speed, to guarantee the speed of pressure regulation.Utilize single-chip microcomputer, can change the size of carbon brush movement rate in the autotransformer very easily, to guarantee being in best demagnetized state for the bearing of different sizes, specification.Simultaneously, the utility model has been realized the working method that decays in time in magnetic field owing to increased AC voltage adjusting and control system, reaches purpose of energy saving.
Isolating transformer of the present utility model mainly plays two effects:
1. magnetic coupling, electricity is isolated.Degaussion coil directly is connected with electrical network, has certain danger, if insulation processing is bad, causes personal safety or damage equipment easily.Utilize isolating transformer that degaussion coil and electrical network are isolated fully.
2. impedance matching.By the magnetic field intensity formula as can be known, H=0.4 π nI.Being magnetic field intensity H is directly proportional with the product of the number of turn n of the size of electric current I and unit length.Guaranteeing to produce more intense H under the constant situation of power supply gross power, n and I have the span an of the best.There has been isolating transformer can realize the purpose of this impedance conversion.
To different bearing workpiece, demagnetization is to select different I and n, optional 10～50 amperes of the current peak of ordinary circumstance maximum, optional 200～1000 circles of the number of turn n of unit length.
The utility model on principle and technical all be very ripe.The utility model just is being fit to the energy-saving and emission-reduction that country advocates energetically, and the requirement of constructing economical society for bearing industry provides an energy-efficient new way, brings bigger economic benefit to bearing enterprise.Through preresearch estimates, energy-saving electromagnetic demagnetizer of the present utility model is more energy-conservation at least more than 60% than original demagnetizer, and domestic bearing enterprise has more than 3000～4000 families, and also will there be the demagnetizer more than tens in the producer of medium-scale.If use novel energy-conserving electromagnetism demagnetizer, the annual electric energy of saving is immeasurable.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is an electrical schematic diagram of the present utility model.
Embodiment
Further specify structure of the present utility model in conjunction with the accompanying drawings.
Fig. 1 is a structural representation of the present utility model.Among Fig. 1,1 is degaussion coil, and 2 is power supply, and 3 is conveyer belt, hollow centre at degaussion coil 1 is passed, 4 is motor, drives conveyer belt 3 runnings, and 5 is autotransformer, 6 is stepping motor, 7 is single-chip microcomputer, and autotransformer 5, stepping motor 6 and single-chip microcomputer 7 are formed AC voltage adjusting and control system, and 8 is isolating transformer; Being installed in degaussion coil 1 water-cooling system does not on every side draw.The line segment of band arrow is represented the electrical connection between each parts among Fig. 1.
See Fig. 1, power supply 2 is motor 4, stepping motor 6, autotransformer 5 and single-chip microcomputer 7 power supplies, and the input of autotransformer 5 is electrically connected with power supply 2, and the output of autotransformer 5 is degaussion coil 1 power supply by isolating transformer 8; The rotation axis of autotransformer 5 is driven by stepping motor 6 and rotates, stepping motor 6 is electrically connected with single-chip microcomputer 7, thereby the rotation direction and the slewing rate of the carbon brush of control autotransformer 5, changing the size of autotransformer 5 output voltages, realizing that the working method that magnetic direction changes frequency is decayed, regulates in the magnetic field of degaussion coil 1 in time.
Fig. 2 provides electrical schematic diagram of the present utility model.Reference numeral 1,5,6,7,8 among Fig. 2 is identical with Fig. 1, and 9 is carbon brush.Carbon brush 9 is subjected to the control back and forth movement of stepping motor 6 by the rotation axis of autotransformer 5, changes into the amplitude (size) of degaussion coil 1 power supply and the frequency that amplitude changes.
As seen from Figure 2, isolating transformer 8 roles:
1. magnetic coupling, can guarantee operating personnel and degaussion coil safety at electric the isolation.
2. impedance matching is complementary degaussion coil and power supply, realizes the purpose of impedance conversion.
Claims (2)
1, a kind of energy-saving electromagnetic demagnetizer, structure comprise degaussion coil (1), the power supply (2) for degaussion coil (1) power supply, the conveyer belt (3) that passes in the hollow centre of degaussion coil (1), drive the motor (4) of conveyer belt (3) running, are installed in degaussion coil (1) water-cooling system on every side; It is characterized in that, between power supply (2) and degaussion coil (1), AC voltage adjusting and control system are housed; Described AC voltage adjusting and control system are made up of autotransformer (5), stepping motor (6), single-chip microcomputer (7); The input of autotransformer (5) is electrically connected with power supply (2), the rotation axis of autotransformer (5) can be by stepping motor (6) driven rotary with the carbon brush that is connected with rotation axis (9), stepping motor (6) is electrically connected with single-chip microcomputer (7), the rotation direction and the slewing rate of single-chip microcomputer (7) control step motor (6) and then control carbon brush (9).
According to the described energy-saving electromagnetic demagnetizer of claim 1, it is characterized in that 2, structure also has isolating transformer (8); Described isolating transformer (8), input is electrically connected the output of autotransformer (5), and output is electrically connected the input of degaussion coil (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200717207U CN201185112Y (en) | 2008-04-18 | 2008-04-18 | Energy-saving electromagnetical demagnetization machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200717207U CN201185112Y (en) | 2008-04-18 | 2008-04-18 | Energy-saving electromagnetical demagnetization machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201185112Y true CN201185112Y (en) | 2009-01-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200717207U Expired - Fee Related CN201185112Y (en) | 2008-04-18 | 2008-04-18 | Energy-saving electromagnetical demagnetization machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201185112Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104210805A (en) * | 2013-05-31 | 2014-12-17 | 宝山钢铁股份有限公司 | Suspension type lateral deviation preventing conveyer belt degaussing rack device |
-
2008
- 2008-04-18 CN CNU2008200717207U patent/CN201185112Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104210805A (en) * | 2013-05-31 | 2014-12-17 | 宝山钢铁股份有限公司 | Suspension type lateral deviation preventing conveyer belt degaussing rack device |
| CN104210805B (en) * | 2013-05-31 | 2016-06-01 | 宝山钢铁股份有限公司 | The inclined conveying belt demagnetization rack device in the anti-side of suspension type |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090121 |