CN203554255U - Permanent magnetism speed regulation shaft coupling - Google Patents
Permanent magnetism speed regulation shaft coupling Download PDFInfo
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- CN203554255U CN203554255U CN201320614463.8U CN201320614463U CN203554255U CN 203554255 U CN203554255 U CN 203554255U CN 201320614463 U CN201320614463 U CN 201320614463U CN 203554255 U CN203554255 U CN 203554255U
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- magnetic conduction
- magnetic
- adjusting shaft
- permanent
- speed
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- 230000008878 coupling Effects 0.000 title claims abstract description 75
- 238000010168 coupling process Methods 0.000 title claims abstract description 75
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 75
- 230000005389 magnetism Effects 0.000 title abstract 5
- 239000004020 conductor Substances 0.000 claims abstract description 70
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical group [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 claims description 27
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 9
- 239000010949 copper Substances 0.000 claims description 9
- 229910052802 copper Inorganic materials 0.000 claims description 9
- 229910000976 Electrical steel Inorganic materials 0.000 claims description 8
- 229910001209 Low-carbon steel Inorganic materials 0.000 claims description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 239000004411 aluminium Substances 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- 230000003247 decreasing effect Effects 0.000 claims description 3
- 229910001172 neodymium magnet Inorganic materials 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 8
- 238000013461 design Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 5
- 230000005347 demagnetization Effects 0.000 description 4
- 239000012141 concentrate Substances 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000010358 mechanical oscillation Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
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Abstract
The utility model discloses a permanent magnetism speed regulation shaft coupling comprising a conductor rotor, a permanent magnetism rotor and a plurality of permanent magnets; the permanent magnetism rotor comprises a magnetic conductive ring having a plurality of protrusions and recessions in staggered arrangement; a first air path is respectively arranged between the protrusions and the conductor rotor, a second air path is respectively arranged between the recessions and the conductor rotor, and a cross section of the second air path is bigger than that of the first air path. The permanent magnetism rotor also comprises a plurality of embedded grooves arranged in the recessions, and the permanent magnets are respectively embedded in the embedded grooves.
Description
Technical field
The utility model relates to a kind of permanent magnetic speed-adjusting shaft coupling.
Background technology
Permanent magnetic speed-adjusting shaft coupling (Permanent Magnetic Coupling Device) is a kind of drive apparatus that sees through air gap transmitting torque, and existing permanent magnetic speed-adjusting shaft coupling is mainly comprised of conductor rotor, p-m rotor two parts.Conductor rotor is fixed on driving shaft, is connected with motor terminal; P-m rotor is fixed on bearing axle, is connected with load.Gapped between conductor rotor and p-m rotor.The connection meeting of motor and load becomes magnetic link from original mechanical link like this.By regulating p-m rotor with respect to the air gap distance between conductor rotor or area, can change the output torque on bearing axle, thus regulating load rotating speed.
Permanent magnetic speed-adjusting shaft coupling has the following advantages in practical application: can make CD-ROM drive motor No Load Start, reduce the starting current of motor, extend motor life, reduce the impact on electric power system; Owing to adopting air gap transmitting torque, thereby reduce the connection precision to motor and load equipment, reduced mechanical oscillation and noise; Adopt permanent magnetic speed-adjusting shaft coupling can realize the continuous adjusting of flow or pressure, compared to adopting valve or damper to compare, want saves energy.
But because permanent magnetic speed-adjusting shaft coupling need to be by slip power consumption in conductor rotor, therefore permanent magnetic speed-adjusting shaft coupling power is larger, and the temperature in conductor rotor is just higher, if temperature passes to p-m rotor, can make the permanent magnet on it that permanent demagnetization occurs, cause permanent magnetic speed-adjusting shaft coupling to damage.
A solution of the prior art is to adopt the mode of laying radiator shutter on conductor rotor one side surface outward flange to increase heat-sinking capability, and when rotating conductor rotor, radiator shutter can produce air-flow and dispel the heat.But this mode can increase the noise of radiator shutter, and during full-load run, air gap is narrow and small, and windage is very large, and the air-flow of generation is less, and heat-sinking capability is restricted.For tubular permanent-magnet speed governor, in whole speed regulation process, air gap is all in minimum state, and heat-sinking capability is subject to severely restricts.
Another kind of solution of the prior art is to adopt water-cooling pattern to dispel the heat to conductor rotor, and the conductor rotor that cooling water enters rotation need to connect swivel joint.Swivel joint consists of mandrel and overcoat, between mandrel and overcoat, has bearing, and both can relative motion.Mandrel and overcoat can be according to operating mode as copper plate or stators, and copper plate is with the conductor rotor coaxial rotating of rotation, and on stator, hydraulic fluid port is connected with the fixing pipeline of carrying fluid, and the hydraulic fluid port on copper plate is connected with the pipeline in conductor rotor.In order to prevent that cooling water from spilling between copper plate and stator, is provided with sealing ring between copper plate and stator.Sealing ring all will be changed every year, and maintenance cost is high.
Utility model content
The utility model provides a kind of permanent magnetic speed-adjusting shaft coupling having compared with air flow passage, in order to promote the heat-sinking capability of permanent magnetic speed-adjusting shaft coupling.
An execution mode of the present utility model provides a kind of permanent magnetic speed-adjusting shaft coupling, comprises conductor rotor, p-m rotor and multiple permanent magnet.P-m rotor comprises magnetic conduction annulus, magnetic conduction annulus comprises staggered multiple protuberance and multiple recess, between protuberance and conductor rotor, there is respectively the first gas channel, between recess and conductor rotor, there is respectively the second gas channel, and the sectional area of the second gas channel is greater than the sectional area of the first gas channel.P-m rotor also comprises multiple embedded grooves that are arranged at recess, and permanent magnet is embedded in respectively in embedded groove.
In one or more embodiment, conductor rotor comprises containing cavity, and p-m rotor is placed in containing cavity.
In one or more embodiment, the first gas channel and the second gas channel are parallel to the axial setting of p-m rotor.
In one or more embodiment, magnetic conduction annulus is mild steel magnetic conduction annulus or silicon steel sheet magnetic conduction annulus, and permanent magnet is Nd-Fe-B permanent magnet.
In one or more embodiment, conductor rotor comprises a magnetic conduction cylinder and a conductor loops, and conductor loops is arranged at the inner surface of magnetic conduction cylinder, and wherein, the first gas channel is between protuberance and conductor loops, and the second gas channel is between recess and conductor loops.
In one or more embodiment, magnetic conduction cylinder is mild steel magnetic conduction cylinder or silicon steel sheet magnetic conduction cylinder, and conductor loops is copper conductor ring or aluminium conductor ring.
In one or more embodiment, the magnetic polarity of the permanent magnet of protuberance both sides of magnetic conduction annulus is identical.
In one or more embodiment, wherein the magnetic pole of the permanent magnet of protuberance both sides is the N utmost point.
In one or more embodiment, wherein the magnetic pole of the permanent magnet of protuberance both sides is the S utmost point.
In one or more embodiment, protuberance and p-m rotor axially accompany an angle, angle is between 0～240/p degree, wherein p is magnetic pole logarithm.
In one or more embodiment, p-m rotor includes bearing axle, and is sheathed on bearing axle the aluminium ring between bearing axle and magnetic conduction annulus.
In one or more embodiment, aluminium ring comprises several grooves, and magnetic conduction annulus comprises several projections, and projection is sticked in groove, makes magnetic conduction annulus be fixed on aluminium ring.
In one or more embodiment, projection is arranged at the offside of protuberance, and projection has respectively a neck, and shape and the projection of groove match.
In one or more embodiment, permanent magnetic speed-adjusting shaft coupling also comprises a securing member and several double-screw bolt, the sealed magnetic conduction annulus of double-screw bolt and securing member, and sealed securing member and aluminium ring.
In one or more embodiment, permanent magnetic speed-adjusting shaft coupling also comprises a bearing axle and is connected to magnetic conduction annulus, and wherein magnetic conduction annulus comprises with protuberance severally every magnetic bridge one to one, is arranged between bearing axle and protuberance.
In one or more embodiment, magnetic conduction annulus consists of multiple stacked magnetic conduction ring plates, and each magnetic conduction ring plate comprises recess and protuberance, and a fixed angle misplaces between the magnetic conduction ring plate of arbitrary neighborhood.
In one or more embodiment, magnetic conduction annulus consists of multiple stacked magnetic conduction ring plates, each magnetic conduction ring plate comprises recess and protuberance, the predetermined angular that misplaces between the magnetic conduction ring plate of arbitrary neighborhood, and predetermined angular is from one end of magnetic conduction annulus to other end monotonic increase or monotone decreasing.
In one or more embodiment, magnetic conduction ring plate comprises the several perforation that are arranged at protuberance, and p-m rotor also comprises several reference columns, and reference column runs through the perforation in adjacent magnetic conduction ring plate, take combined magnetic ring plate as magnetic conduction annulus.
In one or more embodiment, the height of magnetic conduction ring plate is H, and the height of reference column is h, and H<h<2H.
In one or more embodiment, the width of the first gas channel is 2-8 millimeter, and the width of the second gas channel is 6-20 millimeter.
In one or more embodiment, permanent magnetic speed-adjusting shaft coupling is desk permanent-magnet speed regulation shaft coupling or tubular permanent magnetic speed-adjusting shaft coupling.
Between the p-m rotor of permanent magnetic speed-adjusting shaft coupling and conductor rotor, there is the first different gas channel of sectional area and the second gas channel, the sectional area of the second gas channel is greater than the sectional area of the first gas channel, therefore increase throughput, and then increased the heat-sinking capability of permanent magnetic speed-adjusting shaft coupling.Meanwhile, because the loss of permanent magnetic speed-adjusting shaft coupling mainly concentrates in the conductor loops in conductor rotor, when the set position of permanent magnet is positioned at recess and while being able to away from conductor loops, the temperature rise meeting of permanent magnet declines, the heat demagnetization risk of permanent magnet with reduction.In addition,, from processing and manufacturing, also to paste the fixed form of permanent magnet more convenient the more traditional surface at magnetic conduction annulus for the fixed form that permanent magnet is inserted to embedded groove.
Accompanying drawing explanation
Fig. 1 is the generalized section of permanent magnetic speed-adjusting shaft coupling one embodiment of the present utility model;
Fig. 2 is the three-dimensional view of p-m rotor one embodiment in Fig. 1;
Fig. 3 is permanent magnet polarity and the magnetic line of force schematic diagram of the permanent magnetic speed-adjusting shaft coupling in Fig. 1;
Fig. 4 is the schematic diagram of aluminium ring one fixed form in Fig. 3;
Fig. 5 is the schematic diagram of another fixed form of aluminium ring in Fig. 3;
Fig. 6 is the generalized section of another embodiment of p-m rotor of permanent magnetic speed-adjusting shaft coupling of the present utility model;
Fig. 7 is the three-dimensional view of another embodiment of p-m rotor of permanent magnetic speed-adjusting shaft coupling of the present utility model;
Fig. 8 is the p-m rotor three-dimensional view of an embodiment again of permanent magnetic speed-adjusting shaft coupling of the present utility model;
Fig. 9 is the p-m rotor three-dimensional view of an embodiment again of permanent magnetic speed-adjusting shaft coupling of the present utility model;
Figure 10 is the schematic diagram of the p-m rotor assembling of Fig. 8.
Embodiment
Below will clearly demonstrate spirit of the present utility model with accompanying drawing and detailed description, under any, in technical field, have and conventionally know that the knowledgeable is understanding after preferred embodiment of the present utility model, when can be by the technology of the utility model institute teaching, change and modification, it does not depart from spirit of the present utility model and scope.
Referring to Fig. 1 and Fig. 2, wherein Fig. 1 is the generalized section of permanent magnetic speed-adjusting shaft coupling one embodiment of the present utility model, and Fig. 2 is the three-dimensional view of p-m rotor one embodiment in Fig. 1.Permanent magnetic speed-adjusting shaft coupling 100 includes a conductor rotor 110 and a p-m rotor 120, and wherein p-m rotor 120 includes magnetic conduction annulus 130, and magnetic conduction annulus 130 includes staggered multiple protuberance 132 and multiple recess 134.Between protuberance 132 and conductor rotor 110, there is respectively the first gas channel 140, and between recess 134 and conductor rotor 110, there is respectively the second gas channel 150, and the sectional area of the second gas channel 150 is greater than the sectional area of the first gas channel 140.More particularly, the width W 1 of the first gas channel 140 is 2-8 millimeter (mm), and the width W 2 of the second gas channel 150 is 6-20 millimeter (mm).The first gas channel 140 and the second gas channel 150 are for being parallel to the axial setting of p-m rotor 120.
The sectional area of the second gas channel 150 is greater than the sectional area of the first gas channel 140, has therefore increased throughput, thereby has increased the heat-sinking capability of permanent magnetic speed-adjusting shaft coupling.Meanwhile, because loss concentrates in the conductor loops 114 in conductor rotor 110, when the set position of permanent magnet 160 is positioned at recess 134 and while being able to away from conductor loops 114, the temperature rise meeting of permanent magnet 160 declines, the heat demagnetization risk of permanent magnet 160 with reduction.In addition,, from processing and manufacturing, also to paste the fixed form of permanent magnet 160 more convenient the more traditional surface at magnetic conduction annulus 130 for the fixed form that permanent magnet 160 is inserted to embedded groove 136.
Permanent magnetic speed-adjusting shaft coupling 100 in the present embodiment can be tubular permanent magnetic speed-adjusting shaft coupling, and conductor rotor 110 has containing cavity 118, and p-m rotor 120 is placed in containing cavity 118.But p-m rotor 120 has the design of staggered jog in the present embodiment, or the fixed form that permanent magnet 160 inserts embedded groove 136 can also be applied in dish type permanent magnetic speed-adjusting shaft coupling, does not repeat them here.
In the permanent magnetic speed-adjusting shaft coupling of 300kw, traditional tubular permanent-magnet speed governor width of air gap is 4 millimeters, and air gap area is 0.005m
2, when p-m rotor rotating speed is 120rpm, axially mean wind speed is 0.30m/s.After the structure of application the present embodiment, the width that has increased by second gas channel 150, the second gas channels 150 with larger sectional area on p-m rotor 120 surfaces is 13.25mm, and the air gap gross area is 0.011m
2, now axially mean wind speed is 0.60m/s, wind speed improves 2 times.Learn thus, the design of the present embodiment be except increasing the air gap gross area with heat radiation ability, more can lift shaft to mean wind speed.
With reference to Fig. 3, it is permanent magnet 160 polarity and the magnetic line of force schematic diagram of the permanent magnetic speed-adjusting shaft coupling 100 in Fig. 1.Permanent magnet 160 has the N utmost point and the S utmost point.The magnetic line of force out enters magnetic conduction annulus 130 from the N utmost point, then through the first gas channel 140, enter conductor loops 114, arrive magnetic conduction cylinder 112, then from conductor loops 114s through the first gas channel 140, enter magnetic conduction annulus 130, the S utmost point of getting back to permanent magnet 160 forms loop.The polarity of adjacent two permanent magnets 160 is identical, and the N utmost point of for example permanent magnet 160 can be in the face of the N utmost point of adjacent permanent magnet 160.
With reference to Fig. 4, it is the schematic diagram of aluminium ring 180 1 fixed forms in Fig. 3.Permanent magnetic speed-adjusting shaft coupling also includes a securing member 190 and multiple double-screw bolt 192.On magnetic conduction annulus 130 and aluminium ring 180, there are respectively multiple screws, on securing member 190, also there is corresponding opening, double-screw bolt 192 for the opening through on securing member 190 sealed with the screw on aluminium ring 180 with magnetic conduction annulus 130 respectively, make the sealed magnetic conduction annulus 130 of double-screw bolt 192 and securing member 190, and sealed securing member 190 and aluminium ring 180, with fixed cover, be located at the aluminium ring 180 on bearing axle 170.
With reference to Fig. 5, it is the schematic diagram of aluminium ring 180 another fixed forms in Fig. 3.Except adopting as the securing member 190 in Fig. 4 and double-screw bolt 192, fix aluminium ring, also can as the present embodiment, see through structural design and fix aluminium ring 180.For example, magnetic conduction annulus 130 includes multiple projections 138, and aluminium ring 180 includes multiple grooves 182, and projection 138, for being sticked among groove 182, makes magnetic conduction annulus 130 be fixed on aluminium ring 180.
More particularly, aluminium ring 180 can be set on bearing axle 170.The projection 138 of magnetic conduction annulus 130 is for being arranged at the offside of protuberance 132, and projection 138 has the neck 139 inside contracting, the shape of groove 182 is to match with projection 138, and projection 138 is firmly engaged with groove 182, to connect aluminium ring 180 and magnetic conduction annulus 130.
With reference to Fig. 6, it is the generalized section of another embodiment of p-m rotor of permanent magnetic speed-adjusting shaft coupling of the present utility model.P-m rotor 220 includes magnetic conduction annulus 230, and magnetic conduction annulus 230 includes staggered multiple protuberance 232 and multiple recess 234.Between protuberance 232 and conductor rotor (seeing Fig. 1), there is respectively the first gas channel, and between recess 234 and conductor rotor, there is respectively the second gas channel 250, and the sectional area of the second gas channel 250 is greater than the sectional area of the first gas channel.
The present embodiment can avoid the magnetic line of force of permanent magnet 260 to overflow from bearing axle 270 situation by the design every magnetic bridge 236, and can omit the design about aluminium ring 180 in Fig. 3 to Fig. 5.
Permanent magnetic speed-adjusting shaft coupling of the present utility model can also be by changing the angle between the first gas channel and the second gas channel and the axial direction of bearing axle, reach and promote the blast of p-m rotor and promote the effect of heat-sinking capability, below will illustrate with embodiment.
With reference to Fig. 7, it is the three-dimensional view of another embodiment of p-m rotor of permanent magnetic speed-adjusting shaft coupling of the present utility model.P-m rotor 320 includes magnetic conduction annulus 330, and magnetic conduction annulus 330 includes staggered multiple protuberance 332 and multiple recess 334.Between protuberance 332 meetings and conductor rotor (seeing Fig. 1), be formed with the first gas channel, and between recess 334 and conductor rotor, be formed with the second gas channel 350, and the sectional area of the second gas channel 350 is greater than the sectional area of the first gas channel.Permanent magnet 360 is arranged at the embedded groove 336 that is arranged in recess 334.
In the present embodiment, protuberance 332 and recess 334 are arranged in parallel haply.Protuberance 332 and recess 334 and the second gas channel 350 and p-m rotor 320 axially accompany an angle theta, angle theta is between 0～240/p degree, wherein p is magnetic pole logarithm.For instance, if put 10 permanent magnets 360, number of magnetic poles is 10, and magnetic pole logarithm is 5, and now angle theta is 0～48 degree.
In this embodiment, because therefore the rectangular block that is shaped as distortion of permanent magnet 360, preferably can form with the plastic-bonded magneto of two special shapes and an oblique prism magnet.
This kind be the design with the axioversion configuration of recess 334 and the second gas channel 350 and p-m rotor 320 by protuberance 332, can strengthen further the blast of p-m rotor 320.In the permanent magnetic speed-adjusting shaft coupling of 300kw, the width of air gap of traditional tubular permanent magnetic speed-adjusting shaft coupling is 4mm, and air gap area is 0.005m
2, when p-m rotor rotating speed is 120rpm, axially mean wind speed is 0.30m/s.After the structure of application the present embodiment, if the second gas channel 350 is spent (being that angle theta is 10.8 degree) with axioversion 10.8, axial mean wind speed is now 0.93m/s, and wind speed improves 3.1 times.
With reference to Fig. 8, it is the p-m rotor three-dimensional view of an embodiment again of permanent magnetic speed-adjusting shaft coupling of the present utility model.Magnetic conduction annulus 430 in p-m rotor 420 can be comprised of multiple stacked magnetic conduction ring plates 435, and each magnetic conduction ring plate 435 includes the protuberance 432 and the recess 434 that are crisscross arranged.Between protuberance 432 meetings and conductor rotor (seeing Fig. 1), be formed with the first gas channel, and between recess 434 and conductor rotor, be formed with the second gas channel 450, and the sectional area of the second gas channel 450 is greater than the sectional area of the first gas channel.Multiple permanent magnets 460 are also arranged at respectively the embedded groove 436 that is arranged in recess 434.
Can a fixed angle of dislocation between magnetic conduction ring plate 435.This fixed angle can be between 0～240/p, and wherein p is magnetic pole logarithm.Take the p-m rotor 420 in this figure as example, 3 degree that misplace between the magnetic conduction ring plate 435 of upper and lower two, each magnetic conduction ring plate 435 is than its magnetic conduction ring plate 435 of one in top 3 degree that move to left.Thus, the configuration that the second gas channel 450 also can tilt with bearing axle 470, can reach the effect of hoisting wind pressure equally.
With reference to Fig. 9, it is the p-m rotor three-dimensional view of an embodiment again of permanent magnetic speed-adjusting shaft coupling of the present utility model.Magnetic conduction annulus 430 in p-m rotor 420 can be comprised of multiple stacked magnetic conduction ring plates 435, and each magnetic conduction ring plate 435 includes the protuberance 432 and the recess 434 that are crisscross arranged.The difference of the present embodiment and last embodiment is, the predetermined angular that can misplace between magnetic conduction ring plate 435, and this predetermined angular can be from one end of magnetic conduction annulus 430 to other end monotonic increase or monotone decreasing.Predetermined angular can be between 0 degree～240/p degree, and wherein p is magnetic pole logarithm.Take the p-m rotor 420 in this figure as example, 3 degree that misplace between first and the magnetic conduction ring plate 435 of second, 4 degree that misplace between second and the 3rd magnetic conduction ring plate 435,5 degree etc. misplace between the 3rd and the 4th magnetic conduction ring plate 435.This kind of design can provide the profile that is similar to electric fan, and further hoisting wind pressure.
With reference to Figure 10, the schematic diagram that its p-m rotor 420 that is Fig. 8 is assembled.Magnetic conduction ring plate 435 includes the multiple perforation 438 that are arranged at protuberance 432, and p-m rotor 420 also includes multiple reference columns 480, and reference column 480 can run through the perforation 438 in adjacent magnetic conduction ring plate 435, to combine multiple magnetic conduction ring plates 435 as magnetic conduction annulus 430.
The height of supposing every magnetic conduction ring plate 435 is H, and the height of reference column 480 is h, and both relations are: H<h<2H.In this figure, be provided with the magnetic conduction ring plate 435 of 4 layers of mutual dislocation, between adjacent magnetic conduction ring plate 435, inserting 8 reference columns 480 is connected and fixed, correspondingly, in the Tu Zhong the superiors and orlop magnetic conduction ring plate 435, open 8 grooves, in middle two-layer magnetic conduction ring plate 435, open 16 grooves.In the time of assembling, first orlop magnetic conduction ring plate 435 and bearing axle 470 are installed, then insert permanent magnet 460 and reference column 480, then fill again the magnetic conduction ring plate 435 of the second layer, same permanent magnet 460 and the reference column 480 of inserting, the rest may be inferred, until magnetic conduction ring plate 435 and the permanent magnet 460 of last one deck (the superiors).This assembly method can simply and exactly realize different between magnetic conduction ring plate 435 or the arrangement of identical dislocation angle.
Between the p-m rotor of permanent magnetic speed-adjusting shaft coupling and conductor rotor, there is the first different gas channel of sectional area and the second gas channel, the sectional area of the second gas channel is greater than the sectional area of the first gas channel, therefore increase throughput, and then increased the heat-sinking capability of permanent magnetic speed-adjusting shaft coupling.Meanwhile, because the loss of permanent magnetic speed-adjusting shaft coupling mainly concentrates in the conductor loops in conductor rotor, when the set position of permanent magnet is positioned at recess and while being able to away from conductor loops, the temperature rise meeting of permanent magnet declines, the heat demagnetization risk of permanent magnet with reduction.In addition,, from processing and manufacturing, also to paste the fixed form of permanent magnet more convenient the more traditional surface at magnetic conduction annulus for the fixed form that permanent magnet is inserted to embedded groove.
Although the utility model discloses as above with embodiment; so it is not in order to limit the utility model; anyly be familiar with this skill person; not departing from spirit and scope of the present utility model; when being used for a variety of modifications and variations, the scope that therefore protection range of the present utility model ought define depending on appending claims is as the criterion.
Claims (22)
1. a permanent magnetic speed-adjusting shaft coupling, is characterized in that, comprises:
One conductor rotor;
One p-m rotor, this p-m rotor comprises: a magnetic conduction annulus, this magnetic conduction annulus comprises staggered multiple protuberance and multiple recess, between described multiple protuberance and this conductor rotor, there is respectively one first gas channel, between described multiple recess and this conductor rotor, there is respectively one second gas channel, and the sectional area of this second gas channel is greater than the sectional area of this first gas channel; And
Multiple permanent magnets, are arranged at the embedded groove of described multiple recesses, and described permanent magnet is embedded in respectively in described embedded groove.
2. permanent magnetic speed-adjusting shaft coupling as claimed in claim 1, is characterized in that, this conductor rotor comprises a containing cavity, and this p-m rotor is placed in this containing cavity.
3. permanent magnetic speed-adjusting shaft coupling as claimed in claim 1, is characterized in that, described the first gas channel and described the second gas channel are parallel to the axial setting of this p-m rotor.
4. permanent magnetic speed-adjusting shaft coupling as claimed in claim 1, is characterized in that, this magnetic conduction annulus is mild steel magnetic conduction annulus or silicon steel sheet magnetic conduction annulus, and this permanent magnet is Nd-Fe-B permanent magnet.
5. permanent magnetic speed-adjusting shaft coupling as claimed in claim 1, it is characterized in that, this conductor rotor comprises a magnetic conduction cylinder and a conductor loops, this conductor loops is arranged at the inner surface of this magnetic conduction cylinder, wherein, described the first gas channel is between described protuberance and this conductor loops, and described the second gas channel is between described recess and this conductor loops.
6. permanent magnetic speed-adjusting shaft coupling as claimed in claim 5, is characterized in that, this magnetic conduction cylinder is mild steel magnetic conduction cylinder or silicon steel sheet magnetic conduction cylinder, and this conductor loops is copper conductor ring or aluminium conductor ring.
7. permanent magnetic speed-adjusting shaft coupling as claimed in claim 1, is characterized in that, the magnetic polarity of the permanent magnet of protuberance both sides of this magnetic conduction annulus is identical.
8. permanent magnetic speed-adjusting shaft coupling as claimed in claim 7, is characterized in that, the magnetic pole of the permanent magnet of these protuberance both sides is the N utmost point.
9. permanent magnetic speed-adjusting shaft coupling as claimed in claim 7, is characterized in that, the magnetic pole of the permanent magnet of these protuberance both sides is the S utmost point.
10. permanent magnetic speed-adjusting shaft coupling as claimed in claim 1, is characterized in that, described protuberance and this p-m rotor axially accompany an angle, this angle is between 0～240/p degree, wherein p is magnetic pole logarithm.
11. permanent magnetic speed-adjusting shaft couplings as claimed in claim 1, is characterized in that, this p-m rotor comprises a bearing axle and an aluminium ring, and this aluminium ring set is located at this bearing axle and between this bearing axle and this magnetic conduction annulus.
12. permanent magnetic speed-adjusting shaft couplings as claimed in claim 11, is characterized in that, this aluminium ring comprises multiple grooves, and this magnetic conduction annulus comprises multiple projections, and described projection is sticked in described groove, make this magnetic conduction annulus be fixed on this aluminium ring.
13. permanent magnetic speed-adjusting shaft couplings as claimed in claim 12, is characterized in that, described projection is arranged at the offside of described protuberance, and described multiple projections have respectively a neck, and the shape of described groove and described projection match.
14. permanent magnetic speed-adjusting shaft couplings as claimed in claim 11, is characterized in that, also comprise a securing member and multiple double-screw bolt, and described double-screw bolt wears the opening of this securing member and locks to the screw of this magnetic conduction annulus, thus sealed this securing member and this magnetic conduction annulus.
15. permanent magnetic speed-adjusting shaft couplings as claimed in claim 11, is characterized in that, also comprise a securing member and multiple double-screw bolt, and described double-screw bolt wears the opening of this securing member and locks to the screw of this aluminium ring, thus sealed this securing member and this aluminium ring.
16. permanent magnetic speed-adjusting shaft couplings as claimed in claim 1, it is characterized in that, also comprise a bearing axle and be connected to this magnetic conduction annulus, wherein this magnetic conduction annulus comprises with described multiple protuberances severally every magnetic bridge one to one, is arranged between this bearing axle and described protuberance.
17. permanent magnetic speed-adjusting shaft couplings as claimed in claim 1, it is characterized in that, this magnetic conduction annulus consists of multiple stacked magnetic conduction ring plates, and described in each, magnetic conduction ring plate comprises described recess and described protuberance, and a fixed angle misplaces between the described magnetic conduction ring plate of arbitrary neighborhood.
18. permanent magnetic speed-adjusting shaft couplings as claimed in claim 1, it is characterized in that, this magnetic conduction annulus consists of multiple stacked magnetic conduction ring plates, described in each, magnetic conduction ring plate comprises described recess and described protuberance, the predetermined angular that misplaces between adjacent described magnetic conduction ring plate, this predetermined angular is from one end of this magnetic conduction annulus to other end monotonic increase or monotone decreasing.
19. permanent magnetic speed-adjusting shaft couplings as described in claim 17 or 18, it is characterized in that, described in each, magnetic conduction ring plate comprises the multiple perforation that are arranged at described protuberance, this p-m rotor also comprises multiple reference columns, described reference column runs through the described perforation in adjacent described magnetic conduction ring plate, to combine described magnetic conduction ring plate as this magnetic conduction annulus.
20. permanent magnetic speed-adjusting shaft couplings as claimed in claim 19, is characterized in that, the height of this magnetic conduction ring plate is H, and the height of this reference column is h, and H<h<2H.
21. permanent magnetic speed-adjusting shaft couplings as claimed in claim 1, is characterized in that, the width of described the first gas channel is 2-8 millimeter, and the width of described the second gas channel is 6-20 millimeter.
22. permanent magnetic speed-adjusting shaft couplings as claimed in claim 1, is characterized in that, this permanent magnetic speed-adjusting shaft coupling is a desk permanent-magnet speed regulation shaft coupling or a tubular permanent magnetic speed-adjusting shaft coupling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320614463.8U CN203554255U (en) | 2013-09-30 | 2013-09-30 | Permanent magnetism speed regulation shaft coupling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320614463.8U CN203554255U (en) | 2013-09-30 | 2013-09-30 | Permanent magnetism speed regulation shaft coupling |
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| CN203554255U true CN203554255U (en) | 2014-04-16 |
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|---|---|---|---|
| CN201320614463.8U Expired - Fee Related CN203554255U (en) | 2013-09-30 | 2013-09-30 | Permanent magnetism speed regulation shaft coupling |
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| CN (1) | CN203554255U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104518641A (en) * | 2013-09-30 | 2015-04-15 | 中达电通股份有限公司 | Permanent magnetic speed regulating coupling |
-
2013
- 2013-09-30 CN CN201320614463.8U patent/CN203554255U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104518641A (en) * | 2013-09-30 | 2015-04-15 | 中达电通股份有限公司 | Permanent magnetic speed regulating coupling |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140416 Termination date: 20190930 |