CN104143897A - Disc electromagnetic speed governor - Google Patents
Disc electromagnetic speed governor Download PDFInfo
- Publication number
- CN104143897A CN104143897A CN201410314019.3A CN201410314019A CN104143897A CN 104143897 A CN104143897 A CN 104143897A CN 201410314019 A CN201410314019 A CN 201410314019A CN 104143897 A CN104143897 A CN 104143897A
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- China
- Prior art keywords
- annular solid
- magnetic pole
- armature
- output shaft
- pawl
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- Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)
Abstract
A disc electromagnetic speed governor comprises an input shaft (1) and an output shaft (2), an armature (3) is fixed to one end of the input shaft, a magnetizer (4) and a magnetic pole (5) are arranged at one end of the output shaft, a bearing is arranged between the magnetizer and the output shaft, the magnetic pole is fixed to the output shaft, and a magnet exciting coil (6) is arranged on the magnetizer. The disc electromagnetic speed governor is characterized in that the magnetizer is in an oval cylinder shape, the armature is in a disc shape, the magnetic pole is in a disc shape and is located between a magnet yoke and the armature, and radial additional air gaps and working air gaps are reserved between the magnetic pole and the magnet yoke and between the magnetic pole and the armature. The disc electromagnetic speed governor has the advantages that the additional air gaps and the working air gaps are arranged radially, and therefore the axial dimension of the electromagnetic speed governor is reduced greatly; due to the fact that the radial dimension of the disc electromagnetic speed governor is large, rotational inertia is enlarged, and influences on output rotating speed are small when load torque fluctuates.
Description
Technical field
The present invention relates to a kind of disk type electromagnetic speed regulator, especially comprise power shaft, output shaft, one end of power shaft is fixed with armature, one end of output shaft is provided with magnetic conductor and magnetic pole, between described magnetic conductor and output shaft, be provided with bearing, described magnetic pole is fixed on output shaft, and magnetic conductor is provided with the electromagnetic speed regulator of the structure of magnet exciting coil; For needing the occasion of output rotating speed regulation.
Background technology
Existing electromagnetic speed regulator comprises power shaft 1, output shaft 2, stretch out respectively in support 14 one end of power shaft, output shaft, the other end of power shaft (in support) is fixed with armature 3, the other end of output shaft is provided with magnetic conductor 4 and magnetic pole 5, between described magnetic conductor and output shaft, be provided with bearing, magnetic conductor is fixed on support, and described magnetic pole is fixed on output shaft, magnetic conductor is provided with magnet exciting coil 6, and described power shaft, output shaft are coaxially arranged on support; Described magnetic conductor is cylindrical, and magnet exciting coil is located at its stage casing, and the two ends of magnetic conductor are yoke, and described magnetic pole is cylindrical shape, is enclosed within on magnetic conductor; Described armature is also cylindrical shape, is enclosed within on magnetic pole; Between magnetic pole and magnetic conductor and armature, leaving respectively gap is additional air gap 15 and working gas gap 16; After magnet exciting coil energising, produce magnetic field, the magnetic circuit in magnetic field is, another yoke of the one yoke → additional air gap → magnetic pole → working gas gap → armature → working gas gap → magnetic pole → additional air gap → magnetic conductor of magnetic conductor; When armature rotates with power shaft, between armature and magnetic pole, produce an electromagnetic force, drive magnetic pole rotation; When regulating exciting current, the rotating speed of magnetic pole changes with the variation of exciting current, realizes speed-regulating function.
Additional air gap and the working gas gap of prior art electromagnetic speed regulator arrange vertically, the magnetic line of force is by radially by additional air gap and working gas gap, for reducing the leakage field between yoke and can exporting enough torques, requiring should have certain spacing between yoke, yoke should have certain axial length, this makes the axial dimension of electromagnetic speed regulator larger, at some, to the axial dimension of electromagnetic speed regulator, has the applications of requirement to be restricted.
Summary of the invention
The technical problem to be solved in the present invention is to provide disk type electromagnetic speed regulator that a kind of axial dimension is less to expand the range of application of electromagnetic speed regulator.
Its technical scheme is, a kind of disk type electromagnetic speed regulator comprises power shaft 1, output shaft 2, one end of power shaft is fixed with armature 3, one end of output shaft is provided with magnetic conductor 4 and magnetic pole 5, between described magnetic conductor and output shaft, be provided with bearing, described magnetic pole is fixed on output shaft, magnetic conductor is provided with magnet exciting coil 6, described armature and magnetic conductor are made by low-carbon steel material, it is characterized in that described magnetic conductor is oblate bar shape, one end face of magnetic conductor is provided with annular recess, described magnet exciting coil is installed in described recess for annular, the lug boss of recess both sides is the yoke of magnetic conductor, described armature is plate-like, described magnetic pole be plate-like it between yoke and armature, between magnetic pole and yoke and armature, leave respectively additional air gap and working gas gap, described magnetic pole comprises the N utmost point and the S utmost point of being made by mild steel, described N has a large annular solid, on an end face of large annular solid, uniform even number stretches to the interior pawl in the center of circle from circumference, described S has a little annular solid, uniform and radially overhanging outer pawl that interior pawl number equates on the cylindrical of little annular solid one end, described large annular solid and little annular solid are welded to connect by the joint pin of a plurality of austenitic stainless steel materials, make described interior pawl and outer pawl be interlaced arrangement, between interior pawl and outer pawl, leave gap, described large annular solid and the other end of little annular solid are relative with described yoke end face, the endoporus of described little annular solid is fixedly sleeved on output shaft.
The interior pawl number that described N extremely goes up is the arbitrary number in six, eight, ten, 12.
The interior claw shape that described N extremely goes up is isosceles triangle, and the outer claw shape that described S extremely goes up is isosceles trapezoid, and the waist limit that the waist limit of interior pawl is adjacent outer pawl is parallel to each other and leaves wide gap.
Described joint pin one end is welded on the large annular solid that N extremely goes up, and the joint pin other end is welded on the outer pawl top that S extremely goes up.
Described joint pin one end is welded in the inner circle of the large annular solid that N extremely goes up, and the joint pin other end is welded on the cylindrical of the little annular solid that S extremely goes up.
Compared with prior art the invention has the beneficial effects as follows, 1, its additional air gap and working gas gap are for radially arranging, the magnetic line of force is vertically by additional air gap and working gas gap, the axial dimension of electromagnetic speed regulator is reduced greatly, at some, to the axial dimension of electromagnetic speed regulator, have the applications of requirement unrestricted; 2, the axial dimension due to this electromagnetic speed regulator reduces, and the in the situation that of the same torque of output, the radial dimension of this electromagnetic speed regulator must increase, and its moment of inertia is corresponding increase also, and when load torque fluctuation, the influence of rotation speed of output is less like this.
Accompanying drawing explanation
Fig. 1 is the electromagnetic speed regulator structural representation of prior art.
Fig. 2 is electromagnetic speed regulator structural representation of the present invention.
Fig. 3 is the field structure schematic diagram of electromagnetic speed regulator of the present invention.
Fig. 4 is N electrode structure schematic diagram.
Fig. 5 is the A-A cutaway view of Fig. 4.
Fig. 6 is S electrode structure schematic diagram.
Fig. 7 is the B-B cutaway view of Fig. 6.
Sign in accompanying drawing represents respectively: pawl, the little annular solid of 11-, the outer pawl of 12-, 13-joint pin, 14-support, 15-additional air gap, 16-working gas gap in 1-power shaft, 2-output shaft, 3-armature, 4-magnetic conductor, 5-magnetic pole, 6-magnet exciting coil, the 7-N utmost point, the 8-S utmost point, the large annular solid of 9-, 10-.
Embodiment
The existing accompanying drawings specific embodiment of the invention.
A kind of disk type electromagnetic speed regulator comprises power shaft 1, output shaft 2, one end of power shaft is fixed with armature 3, one end of output shaft is provided with magnetic conductor 4 and magnetic pole 5, between described magnetic conductor and output shaft, be provided with bearing, described magnetic pole is fixed on output shaft, magnetic conductor is provided with magnet exciting coil 6, described armature and magnetic conductor are made by low-carbon steel material, it is characterized in that described magnetic conductor is oblate bar shape, one end face of magnetic conductor is provided with annular recess, described magnet exciting coil is installed in described recess for annular, the lug boss of recess both sides is the yoke of magnetic conductor, described armature is plate-like, described magnetic pole be plate-like it between yoke and armature, between magnetic pole and yoke and armature, leaving respectively space is additional air gap 15 and working gas gap 16, described magnetic pole comprises the N utmost point 7 and the S utmost point 8 of being made by mild steel, described N has a large annular solid 9, on an end face of large annular solid, uniform even number stretches to the interior pawl 10 in the center of circle from circumference, described S has a little annular solid 11, uniform and radially overhanging outer pawl 12 that interior pawl number equates on the cylindrical of little annular solid one end, described large annular solid and little annular solid are welded to connect by the joint pin 13 of a plurality of austenitic stainless steel materials, make described interior pawl and outer pawl be interlaced arrangement, between interior pawl and outer pawl, leave gap, described large annular solid and the other end of little annular solid are relative with described yoke end face, the endoporus of described little annular solid is fixedly sleeved on output shaft.
Described magnetic conductive metal material is mild steel.
Described non-magnetic metal material can be austenitic stainless steel.
The output torque of this disk type electromagnetic speed regulator is relevant to described interior pawl or outer pawl number, and interior more output of pawl number torque is just larger, during design disk type electromagnetic speed regulator, can be according to output torque the interior pawl number of selection one in number six, eight, ten, 12.Interior pawl is also relevant with the output torque of disk type electromagnetic speed regulator to the coincidence length between outer pawl, and the larger output torque of described coincidence length is also larger, by increasing the large annular solid diameter of the described N utmost point, can add the length that overlaps between imperial palace pawl and outer pawl.
The surface configuration of the interior pawl that described N extremely goes up is isosceles trapezoid, and the surface configuration of the outer pawl that described S extremely goes up is isosceles trapezoid, and the waist limit that the waist limit of interior pawl is adjacent outer pawl is parallel to each other and leaves wide gap.
In the situation that N has equivalent diameter, for the area that increases interior pawl surface is to make full use of magnetic circuit, the surface configuration of the interior pawl that described N extremely goes up is isosceles triangle, the surface configuration of the outer pawl that described S extremely goes up is isosceles trapezoid, and the waist limit that the waist limit of interior pawl is adjacent outer pawl is parallel to each other and leaves wide gap.
When outer pawl number is less, described joint pin one end is welded on the large annular solid that N extremely goes up, and the joint pin other end is welded on the outer pawl top that S extremely goes up, and the number of described joint pin equates with the number of outer pawl.
When outer pawl number is more, described joint pin one end is welded in the inner circle of the large annular solid that N extremely goes up, and the joint pin other end is welded on the cylindrical of the little annular solid that S extremely goes up, and half of the number that the number of described joint pin is outer pawl, can reduce welding capacity.
The operation principle of this disk type electromagnetic speed regulator is, described power shaft and output shaft, be positioned at respectively on support 14 by bearing, the other end of power shaft and output shaft respectively in support to stretch out, the magnetic conductor on output shaft is fixed on support.When the logical upper exciting current of magnet exciting coil, can produce magnetic field, the magnetic circuit in magnetic field is, another yoke of the S utmost point → magnetic conductor of the N utmost point → working gas gap → armature → working gas gap → magnetic pole of the one yoke → additional air gap → magnetic pole of magnetic conductor, described armature has electric conductivity, can regard as by some radial leads unit and form, when power shaft drives armature rotation, it is eddy current that the relative Movement in Magnetic Field cutting magnetic line of armature makes induced current in described wire unit, described wire unit is that current－carrying conductor is being produced in magnetic field and produced electromagnetic force by exciting current, electromagnetic force drives magnetic pole rotation to magnetic pole, corresponding output shaft also rotates with magnetic pole.In the situation that constant output torque, the size of change exciting current, the rotating speed of magnetic pole can change thereupon.
Claims (5)
1. a disk type electromagnetic speed regulator comprises power shaft (1), output shaft (2), one end of power shaft is fixed with armature (3), one end of output shaft is provided with magnetic conductor (4) and magnetic pole (5), between described magnetic conductor and output shaft, be provided with bearing, described magnetic pole is fixed on output shaft, magnetic conductor is provided with magnet exciting coil (6), described armature and magnetic conductor are made by low-carbon steel material, it is characterized in that described magnetic conductor is oblate bar shape, one end face of magnetic conductor is provided with annular recess, described magnet exciting coil is installed in described recess for annular, the lug boss of recess both sides is the yoke of magnetic conductor, described armature is plate-like, described magnetic pole be plate-like it between yoke and armature, between magnetic pole and yoke and armature, leave respectively additional air gap (15) and working gas gap (16), described magnetic pole comprises the N utmost point (7) and the S utmost point (8) of being made by mild steel, described N has a large annular solid (9), on an end face of large annular solid, uniform even number stretches to the interior pawl (10) in the center of circle from circumference, described S has a little annular solid (11), uniform and radially overhanging outer pawl (12) that interior pawl number equates on the cylindrical of little annular solid one end, described large annular solid and little annular solid are welded to connect by the joint pin (13) of a plurality of austenitic stainless steel materials, make described interior pawl and outer pawl be interlaced arrangement, between interior pawl and outer pawl, leave gap, described large annular solid and the other end of little annular solid are relative with described yoke end face, the endoporus of described little annular solid is fixedly sleeved on output shaft.
2. the interior pawl number that the N described in extremely goes up is the arbitrary number in six, eight, ten, 12.
3. the interior claw shape that the N described in extremely goes up is isosceles triangle, and the outer claw shape that described S extremely goes up is isosceles trapezoid, and the waist limit that the waist limit of interior pawl is adjacent outer pawl is parallel to each other and leaves wide gap.
4. the joint pin one end described in is welded on the large annular solid that N extremely goes up, and the joint pin other end is welded on the outer pawl top that S extremely goes up.
5. the joint pin one end described in is welded in the inner circle of the large annular solid that N extremely goes up, and the joint pin other end is welded on the cylindrical of the little annular solid that S extremely goes up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410314019.3A CN104143897B (en) | 2014-07-03 | 2014-07-03 | Disk type electromagnetic speed regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410314019.3A CN104143897B (en) | 2014-07-03 | 2014-07-03 | Disk type electromagnetic speed regulator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104143897A true CN104143897A (en) | 2014-11-12 |
| CN104143897B CN104143897B (en) | 2016-05-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410314019.3A Expired - Fee Related CN104143897B (en) | 2014-07-03 | 2014-07-03 | Disk type electromagnetic speed regulator |
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| Country | Link |
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| CN (1) | CN104143897B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107302279A (en) * | 2017-08-12 | 2017-10-27 | 江苏星宇电机有限公司 | Electromagnetic varispeed motor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4713567A (en) * | 1985-10-02 | 1987-12-15 | Fichtel & Sachs Ag | Electromagnetic brake device for a sports training apparatus |
| CN2090590U (en) * | 1990-12-23 | 1991-12-11 | 谢石隆 | Electromagnetic infinitely variable speed drive for motor |
| JP2005160226A (en) * | 2003-11-26 | 2005-06-16 | Isuzu Motors Ltd | Eddy current reduction gear |
| CN103780051A (en) * | 2014-02-24 | 2014-05-07 | 哈尔滨工业大学 | Double-edge structure speed regulating permanent magnet coupler |
| CN203951348U (en) * | 2014-07-03 | 2014-11-19 | 江苏星宇电机有限公司 | Disk type electromagnetic speed regulator |
-
2014
- 2014-07-03 CN CN201410314019.3A patent/CN104143897B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4713567A (en) * | 1985-10-02 | 1987-12-15 | Fichtel & Sachs Ag | Electromagnetic brake device for a sports training apparatus |
| CN2090590U (en) * | 1990-12-23 | 1991-12-11 | 谢石隆 | Electromagnetic infinitely variable speed drive for motor |
| JP2005160226A (en) * | 2003-11-26 | 2005-06-16 | Isuzu Motors Ltd | Eddy current reduction gear |
| CN103780051A (en) * | 2014-02-24 | 2014-05-07 | 哈尔滨工业大学 | Double-edge structure speed regulating permanent magnet coupler |
| CN203951348U (en) * | 2014-07-03 | 2014-11-19 | 江苏星宇电机有限公司 | Disk type electromagnetic speed regulator |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107302279A (en) * | 2017-08-12 | 2017-10-27 | 江苏星宇电机有限公司 | Electromagnetic varispeed motor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104143897B (en) | 2016-05-11 |
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Granted publication date: 20160511 Termination date: 20180703 |
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