CN203617875U - Stack-shaped permanent magnet speed regulator - Google Patents
Stack-shaped permanent magnet speed regulator Download PDFInfo
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- CN203617875U CN203617875U CN201320496957.0U CN201320496957U CN203617875U CN 203617875 U CN203617875 U CN 203617875U CN 201320496957 U CN201320496957 U CN 201320496957U CN 203617875 U CN203617875 U CN 203617875U
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- magnetic
- permanent magnet
- soft iron
- permanent
- magnetic induction
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Abstract
The utility model discloses a stack-shaped permanent magnet speed regulator, and a driving shaft and a driven shaft thereon are respectively provided with a magnetic transmission member and a magnetic induction member both having a concavo-convex polycyclic casing structure, and, the convex loop part of the magnetic transmission member or the magnetic induction member are inserted into the concave loop part of the magnetic transmission member or the magnetic induction member; also, the interior surface of the convex ring circumference of the magnetic transmission member and the external surface of the convex ring circumference of the magnetic induction member are separated by an air gap, wherein, the surface of the convex ring circumference of the magnetic transmission member is provided with a magnetizer formed by soft iron and at least two permanent magnets separated by the soft iron with the magnetic line direction vertical to the rotor axis; the convex ring circumference of the magnetic induction member is made of soft iron material and copper strip with rectangular cross section that is set on the soft iron and is fixed evenly on the circumference surface. By the stack-shaped permanent magnet speed regulator provided by the utility model, large torque can be transmitted with advantages of fast response speed, small operation vibration and stepless speed control.
Description
Technical field
The utility model relates to a kind of speed regulator that adopts magnetic conductor and permanent magnet element to carry out moment of torsion transmission, the particularly variable permanent-magnet speed governor of a kind of transmitting torque.
Background technology
In the industries such as large-scale mining, cement, paper pulp, petrochemical industry, metallurgy, electric power, due to energy-conservation needs and easy to operate, a large amount of reductors, variable-frequency governor, fluid coupling etc. are applied in the middle of production process.Although reach the required parameter request of equipment, not necessarily energy-conserving and environment-protective, and also high to environmental requirement, thereby its shortcoming is: system complex, maintainable poor, equipment accommodative ability of environment is poor, is subject to the interference of surrounding environment; The permanent magnet one of existing permanent-magnet speed governor is planar shaped or cylindrical shape.
Chinese invention patent application 201210478239.0 discloses a kind of speed regulator that utilizes magnetic device transmitting torque.This driving magnet rotor and driven rotor by being arranged at respectively on driving shaft and driven shaft, bearing, prop up and be configured to, on driving shaft, be fixedly installed the conical shell of being made by soft iron and be fixed on the driving magnet rotor that the set of permanent magnets on conical shell inner surface forms, on driven shaft, be fixedly installed the driven rotor of the taper being formed by soft magnetic material, and the driven rotor of bullet is positioned at the conical shell that drives magnet rotor, and and drive between magnet rotor and be separated by with air gap, wherein: drive the set of permanent magnets that on magnet rotor, setting is made up of four prismatic polar orientation permanent magnet blocks identical and its magnetic line of force direction and radial parallel, between each group set of permanent magnets, separate with the soft material that a width equals a permanent magnet blocks width, two adjacent set of permanent magnets polarity arrange on the contrary, driven rotor (being inductive means) is to make with soft iron.This adjuster can carry out stepless speed regulation to load in the scope of 0-98%, and have can be large in the temperature difference, temperature is high, work under overcast and rainy, high dust, the rugged environment such as explosion-proof, device structure is simple, many-sided advantage such as failure rate is low, but its volume will be very huge in the time that this speed regulator is used for high power load, particularly its axial dimension will be very large, if use occasion has one to limit, may be suitable for.
Summary of the invention
The utility model provides a kind of frequency converter, reductor, fluid coupling that overcomes current use to be unfavorable for transmitting the not enough permanent-magnet speed governor of high power load.
Folded shape permanent-magnet speed governor of the present utility model comprises the magnetic driving member being fixedly installed on respectively on driving shaft and is arranged at magnetic induction part on driven shaft, on driven shaft, be fixed with a T-shaped sliding sleeve in its cross section that can move vertically, the cross section of the T shape sliding sleeve shape structure that takes the shape of the letter U, on the edge of U-shaped structure, have the location notch tilting vertically, the outer rim that T shape sliding sleeve is directly held matches with the bearing inner race of driven shaft, the driven rotor secure fit of the bearing outer ring of driven shaft and taper, on the edge of the cross section U-shaped structure of T shape sliding sleeve, have the location notch tilting vertically, match with a joystick in the inside of location notch, rotating joystick can make driven rotor move vertically, it is characterized in that: driving shaft and driven shaft are respectively the magnetic driving member and the magnetic induction parts that are provided with concavo-convex multispiral shape structure, and the spill position of magnetic induction parts or magnetic driving member is inserted respectively at the bulge loop position of magnetic driving member or magnetic induction parts, between the inner surface of the outer surface of the bulge loop circumference of magnetic driving member and the bulge loop circumference of magnetic induction parts, be separated by with air gap, on the bulge loop circumferential surface of magnetic driving member, have by the magnetic conductor forming with soft iron and be fixed at least two permanent magnets on magnetic conductor, the magnetic line of force direction of permanent magnet is vertical with rotor axis, the polarity of two adjacent permanent magnets arranges on the contrary, and separate with the soft iron that a width equals a permanent magnet width between each permanent magnet, magnetic induction parts are by soft iron material and be arranged at the copper bar that the cross section being evenly fixedly installed along its circumferential surface on soft iron is rectangle and form, each copper bar length direction axially arranges along driven shaft, between each copper bar, be separated by with soft iron, and the cross-sectional width of each copper bar equates with the soft iron cross-sectional width of being separated by.
In folded shape permanent-magnet speed governor preferred forms of the present utility model, each permanent magnet is the set of permanent magnets being fixedly made up of four identical permanent magnet blocks of polar orientation, and the soft iron that equals a permanent magnets width with width between each set of permanent magnets separates.This architectural feature of the present utility model can make optimization of permanent magnet, saves material, increases magnetic property, and reduces volume.
On the driving shaft of folded shape permanent-magnet speed governor of the present utility model and driven shaft, be fixedly installed respectively two end face permanent magnets of being separated by with air gap in addition, each end face permanent magnet wherein by two magnetic line of force directions along at least one pair of contrary permanent magnet blocks of the pole orientation of the axial placement of driving shaft or driven shaft, the magnet short-cut path that permanent magnet blocks has soft iron to form with respect to the arranged outside of air gap, and the permanent magnet blocks of each end face permanent magnet, magnet short-cut path are all in soft iron is sealed, and two end face permanent magnet polarities are oppositely arranged.
The utility model has the advantages that:
1, can change the interactional area between magnetic induction parts and magnetic driving member by the adjustment of axial location between driven rotor and power rotor, realize the change of transmitting torque amount, like this in the time of No Load Start, magnetic induction parts and magnetic driving member interphase interaction area can be adjusted to minimum, starting current is diminished, improve the impact to electrical network, in the time of normal work, can make magnetic induction parts and magnetic driving member interphase interaction area be adjusted to maximum, to transmit large moment of torsion;
2, can implementation procedure control, the utility model can, according to Signal Regulation load speed, meet system requirements, fast response time;
3, due to permanent-magnet speed governor be the speed regulating device of non-mechanical connection, between load and motor, do not have machinery firmly to be connected, completely by air gap transmitting torque, isolated the transmission of vibrating, reduced vibration;
4, permanent magnetic speed-adjusting of the present utility model can carry out large-scale stepless speed regulation to load in the scope of 0-98%;
5, the utility model can be large in the temperature difference, temperature is high, work under overcast and rainy, high dust, the rugged environment such as explosion-proof.(in high temperature, low temperature, humidity; Under the various adverse circumstances such as inflammable and explosive, voltage instability and thunder and lightning, work.) environmental suitability is strong;
6, of the present utility model simple in structure, failure rate is low, maintenance cost is low, and reliability is high, safeguards few;
7, because permanent magnet coupling of the present utility model is mechanical electromagnetic speed-adjusting, the stability of electrical network is to power quality no requirement (NR);
8, adopt the utility model to have the energy-saving effect of forging a good relationship, by regulating load rotating speed, can improve the efficiency of load, reduce energy loss, lower motor load, energy-saving effect is obvious;
9, in the useful life of permanent-magnet speed governor, can reach 30 years in theory, therefore long service life of the present utility model;
10, the utility model belongs to untouchable mechanical connection, does not produce humorous wave interference, without humorous wave interference;
11, the utility model is soft start completely, and has the stall function of protection automatically;
12, with respect to existing all kinds of permanent-magnet speed governors, volume of the present utility model is little, and power bracket is large, particularly can transmit larger moment of torsion.
accompanying drawing explanation
Fig. 1 is cross-sectional view of the present utility model, and Fig. 2 is that local amplification of Fig. 1 illustrated, Fig. 3 is that in Fig. 2, K-K is to generalized section, and end face permanent magnet of the present utility model arranges schematic diagram, and Fig. 4 is end face permanent magnet schematic diagram.
In accompanying drawing: 1 is driven shaft; 2 is the joystick with adjusting axial location; The 3 magnetic induction parts that are the concavo-convex multispiral shape that arranges on driven roller; The 4 magnetic driving members that are the concavo-convex multispiral shape that arranges on power rotor axle; 5 is bearing; 6 is T shape sliding sleeve; 7 for being arranged at the copper bar on magnetic induction parts 3; 8 is soft iron magnetic conductor on magnetic induction parts 3; 9 for being arranged at the set of permanent magnets on magnetic driving member 4, and wherein 9a is the set of permanent magnets being made up of four permanent magnets with magnetic polarity direction (NNNN), and 9b is the set of permanent magnets being made up of four another permanent magnets with magnetic polarity direction (SSSS); 10 is the magnetic conductor on magnetic driving member 4; 11 for being fixed on a pair of permanent magnet blocks on driven shaft end face, and above it, the N utmost point of a permanent magnet points to the N utmost point on the right, and below it, the S utmost point of a permanent magnet points to the S utmost point on the right; 12 for being fixed on another on driving shaft end face to permanent magnet blocks, and above it, the N utmost point of a permanent magnet points to the N utmost point on the left side, and below it, the S utmost point of a permanent magnet points to the S utmost point on the left side; 13 is the magnet short-cut path of permanent magnets 13; 14 is that the soft iron of sealing permanent magnet blocks 13 and magnet short-cut path 14 is sealed; 15 is the magnet short-cut path of permanent magnets 11; 16 is that the soft iron of sealing permanent magnet blocks 11 and magnet short-cut path 10 is sealed.
Embodiment
The embodiment that the utility model provides below in conjunction with accompanying drawing describes in detail.
From accompanying drawing 1, folded shape permanent-magnet speed governor of the present utility model comprises the magnetic driving member 4 that is arranged at respectively the concavo-convex multispiral structure on driving shaft (power shaft), the magnetic induction parts 3 that are arranged at the concavo-convex multispiral structure on driven shaft (output shaft) 1, bearing 5 and support.On driving shaft and driven shaft, be respectively arranged with as seen from Figure 1 magnetic driving member 4 and the magnetic induction parts 3 of concavo-convex multispiral structure, in the embodiment providing at accompanying drawing, the concavo-convex multispiral structure of magnetic driving member 4 and magnetic induction parts 3 is respectively three layers.The scrobicular ring shell position of magnetic induction parts or magnetic driving member is inserted respectively at the bulge loop shell position of magnetic driving member 4 and magnetic induction parts 3, from accompanying drawing 1 and accompanying drawing 2, in the combination of magnetic induction parts 4 or 3 slotting shapes of formation teeth of magnetic driving member, it is similar to two rectangular teeths shape that is meshed in cross section vertically, referring to accompanying drawing 1 and accompanying drawing 2, between the inner surface of the bulge loop circumference of magnetic driving member 4 and the bulge loop circumferential outer surface of magnetic induction parts 3, be not in contact with one another, but be separated by with air gap.In addition, on driven shaft 1, be fixed with a sliding sleeve 6 that its cross section that can move is vertically T-shaped, the transverse cross tangent plane of T shape sliding sleeve 6 is U shape structure, on the edge of U shape structure, have sloped position groove vertically, the outer rim that T shape sliding sleeve is directly held matches with the inner ring of driven rotor bearing, the outer ring of driven rotor bearing and driven rotor secure fit, match with a joystick 2 in the groove of the sloped position vertically inside having on the bowl-shape edge of horizontal end of T shape sliding sleeve, rotating joystick can make driven rotor and drive the magnetic induction parts on it to move vertically, in order to adjust the area size of magnetic driving member and magnetic induction interacting between parts.
From accompanying drawing 3, the magnetic driving member 4 being fixedly installed on driving shaft is made up of with the permanent magnet 9 being fixed on magnetic conductor 10 the upper magnetic conductor 10 by forming with soft iron that is positioned at bulge loop circumferential surface, in the utility model, permanent magnet should be at least two, and 8 groups of permanent magnets are set in the embodiment that accompanying drawing 1 provides altogether, each permanent magnet is in the present embodiment that the set of permanent magnets being made up of the permanent magnets of four same polarities that are fixed together forms, two set of permanent magnets polarity of every 4 are contrary, while being N as the polarity of a set of permanent magnets (as Fig. 3 shows 9a), adjacent set of permanent magnets is S(9b as shown), and the magnetic line of force and the driving shaft of set of permanent magnets are perpendicular.In embodiment of the present utility model, between every two permanent magnets, be separated by with software, the width of this soft iron equals the width of a permanent magnets, and the benefit that adopts this structure is to increase magnetic energy poles, reduces the volume of integral device.
Magnetic induction modular construction fixing on driven shaft 1 of the present utility model is: on the toroidal shell circumferential surface of the soft iron magnetic conductor 8 on the magnetic induction parts 3 take soft iron material as matrix, be evenly fixedly installed the cross section of (for example adopting mosaic mode) as the copper bar 7 of rectangle, the length direction of copper bar 7 is along the axial setting of driven shaft, 7 of each copper bars are separated by with soft iron, and the cross-sectional width of each copper bar 7 equates with the soft iron cross-sectional width of being separated by.In the embodiment of accompanying drawing 3 of the present utility model, on magnetic induction device, it is provided with 42 copper bars.
On driving shaft and driven shaft 1, be fixedly installed respectively two end face permanent magnets 11 and 12 of being separated by with air gap, each end face permanent magnet is wherein two magnetic line of force directions at least one pair of permanent magnet blocks axial placement and that pole orientation is contrary along driving shaft or driven shaft, above it, the N utmost point of a permanent magnet blocks points to the N utmost point of the permanent magnet blocks on the right, below it, the S utmost point of a permanent magnet blocks points to the S utmost point of the permanent magnet blocks on the right, referring to Fig. 4; The magnet short-cut path that permanent magnet blocks has soft iron 15 or 13 to form with respect to the arranged outside of air gap, and the permanent magnet blocks of each end face permanent magnet, magnet short-cut path are all sealed in 16 and 14 in soft iron.
The utility model is in the time of work, in the time that the magnetic driving member 4 on driving shaft rotates and be arranged between the magnetic induction parts 3 on driven rotor axle the relative motion that produces cutting magnetic line, so produce eddy current on magnetic induction parts 3, eddy current produces again the magnetic field generation interaction of induced field and magnetic driving member 4 simultaneously, thereby producing identical direction with dynamic magnetic induction parts 3 in company with magnetic driving member 4 rotates, result be by the transmission of torque of driving shaft to driven shaft, simultaneously because magnetic driving member and magnetic induction part have been concavo-convex multispiral shape structure, make it under the condition of shorter axial dimension, can have the magnetic coupling area larger compared with prior art, therefore can transmit larger moment of torsion.In the time that load changes, adjuster can be adjusted the magnetic coupling area between driving member and magnetic induction parts along pivot center, is used for reaching the object of governing speed.The set end face permanent magnet of the utility model can balance magnetic driving member and magnetic induction parts between the axial force that produces.
Claims (1)
1. a folded shape permanent-magnet speed governor, comprise the magnetic driving member being fixedly installed on respectively on driving shaft and be arranged at magnetic induction part on driven shaft, on driven shaft, be fixed with a T-shaped sliding sleeve in its cross section that can move vertically, the cross section of the T shape sliding sleeve shape structure that takes the shape of the letter U, on the edge of U-shaped structure, have the location notch tilting vertically, the outer rim that T shape sliding sleeve is directly held matches with the bearing inner race of driven shaft, the driven rotor secure fit of the bearing outer ring of driven shaft and taper, on the edge of the cross section U-shaped structure of T shape sliding sleeve, have the location notch tilting vertically, match with a joystick in the inside of location notch, rotating joystick can make driven rotor move vertically, it is characterized in that: driving shaft and driven shaft are respectively the magnetic driving member and the magnetic induction parts that are provided with concavo-convex multispiral shape structure, and the spill position of magnetic induction parts or magnetic driving member is inserted respectively at the bulge loop position of magnetic driving member or magnetic induction parts, between the inner surface of the outer surface of the bulge loop circumference of magnetic driving member and the bulge loop circumference of magnetic induction parts, be separated by with air gap, on the bulge loop circumferential surface of magnetic driving member, have by the magnetic conductor forming with soft iron and be fixed at least two permanent magnets on magnetic conductor, the magnetic line of force direction of permanent magnet is vertical with rotor axis, the polarity of two adjacent permanent magnets arranges on the contrary, and separate with the soft iron that a width equals a permanent magnet width between each permanent magnet, magnetic induction parts are by soft iron material and be arranged at the copper bar that the cross section being evenly fixedly installed along its circumferential surface on soft iron is rectangle and form, each copper bar length direction axially arranges along driven shaft, between each copper bar, be separated by with soft iron, and the cross-sectional width of each copper bar equates with the soft iron cross-sectional width of being separated by.
2. folded shape permanent-magnet speed governor according to claim 1, is characterized in that: each permanent magnet is the set of permanent magnets being fixedly made up of four identical permanent magnet blocks of polar orientation, and the soft iron that equals a permanent magnets width with width between each set of permanent magnets separates.
3. folded shape permanent-magnet speed governor according to claim 1 and 2, it is characterized in that: on driving shaft and driven shaft, be fixedly installed respectively two end face permanent magnets of being separated by with air gap, each end face permanent magnet wherein by two magnetic line of force directions along at least one pair of contrary permanent magnet blocks of the pole orientation of the axial placement of driving shaft or driven shaft, the magnet short-cut path that permanent magnet blocks has soft iron to form with respect to the arranged outside of air gap, and the permanent magnet blocks of each end face permanent magnet, magnet short-cut path are all in soft iron is sealed, and two end face permanent magnet polarities are oppositely arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320496957.0U CN203617875U (en) | 2013-08-15 | 2013-08-15 | Stack-shaped permanent magnet speed regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320496957.0U CN203617875U (en) | 2013-08-15 | 2013-08-15 | Stack-shaped permanent magnet speed regulator |
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| Publication Number | Publication Date |
|---|---|
| CN203617875U true CN203617875U (en) | 2014-05-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320496957.0U Expired - Lifetime CN203617875U (en) | 2013-08-15 | 2013-08-15 | Stack-shaped permanent magnet speed regulator |
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| Country | Link |
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| CN (1) | CN203617875U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103414312A (en) * | 2013-08-15 | 2013-11-27 | 甘肃省科学院磁性器件研究所 | Stacked type permanent magnet speed controller |
-
2013
- 2013-08-15 CN CN201320496957.0U patent/CN203617875U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103414312A (en) * | 2013-08-15 | 2013-11-27 | 甘肃省科学院磁性器件研究所 | Stacked type permanent magnet speed controller |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140528 |
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| CX01 | Expiry of patent term |