CN203014639U - Axial disc type permanent magnetic speed reducer based on magnetization effects - Google Patents
Axial disc type permanent magnetic speed reducer based on magnetization effects Download PDFInfo
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- CN203014639U CN203014639U CN 201220671846 CN201220671846U CN203014639U CN 203014639 U CN203014639 U CN 203014639U CN 201220671846 CN201220671846 CN 201220671846 CN 201220671846 U CN201220671846 U CN 201220671846U CN 203014639 U CN203014639 U CN 203014639U
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- disc
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- magnetic pole
- permanent magnet
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Abstract
The axial disk permanent magnetic reduction gear based on magnetization effect that the utility model discloses a kind of, including along same axis successively spaced driving disc spacing pressing, stator disc and driven disc side by side; The fan-shaped set of permanent magnets of driving disc spacing pressing disc basal disc made of soft magnetic materials and U at; Permanent magnet is for axial magnetized and as active magnetic pole; Stator disc by
It is a sector soft magnetic bodies disc and
A sector non-magnetizer disc is alternate to be assembled, and fan-shaped soft magnetic bodies disc forms modulation magnetic pole after being magnetized. Driven disc is made of soft magnetic materials, and driven disc is equipped in towards stator disc side
A fan-shaped protrusion, fan-shaped protrusion form driven magnetic pole after being magnetized; Active number of magnetic poles U, modulation number of magnetic poles
, the fan-shaped raised quantity of driven disc
Relationship between three meets:
, k is natural number. The utility model has many advantages, such as that contactless abrasion is noiseless, driving torque is big, compact-sized, easy to process, saving permanent-magnet material, at low cost, the driven dish structure of simplification, the corrosion for avoiding driven disc magnet.
Description
Technical field
The utility model belongs to technical field of magnetic transmission, relates in particular to a kind of axial disk permanent magnetism deceleration device based on magnetization effect.
Background technology
Compare with traditional mechanical gear transmission, the magnetic speed device can realize between driving member contactless, without wearing and tearing, without the characteristics of impact shock, thereby need not to lubricate, stable drive, and have overload protection function.
The axial disk magnetic-field modulation-type magnetic-gear that proposes is at present all inlayed the permanent magnet of some on driven wheel.This structure permanent magnetic material use amount on the one hand is large, and the magnetic-gear structure is comparatively complicated on the other hand, and difficulty of processing is larger, and cost is higher.
Summary of the invention
The purpose of this utility model is to provide a kind of simple in structure, lower-cost axial disk permanent magnetism deceleration device based on magnetization effect.
For achieving the above object, the axial disk permanent magnetism deceleration device based on magnetization effect of the present utility model comprises along the same axis driving disc spacing pressing, stator disc and the clutch plate that arrange of interval successively side by side; Described axis is called axis of rotation; Disc basal disc and U fan-shaped permanent magnet that described driving disc spacing pressing is made by soft magnetic material form, and U is the natural number greater than 1; Each permanent magnet all is fixed in basal disc towards the surface of stator disc one side, and the evenly distribution on same circumferencial direction of each permanent magnet, and the center of circle of this permanent magnet distribution circle is positioned on described axis of rotation; Described permanent magnet is axial magnetized, and its N, S extreme direction are parallel with axis of rotation; When U was even number, the N of two adjacent permanent magnets, S extreme direction were opposite; When U was odd number, except N, the S extreme direction of a pair of adjacent permanent magnet were identical, the N of all the other adjacent permanent magnet, S extreme direction were opposite, and described fan-shaped permanent magnet is as the active magnetic pole; Described stator disc is by n
SIndividual fan-shaped soft magnetic bodies disc and n
SAlternate being assembled of individual fan-shaped non-magnetizer disc, the described fan-shaped soft magnetic bodies disc rear formation modulation magnetic pole that is magnetized; The segment angle of soft magnetic bodies disc
Satisfy
Described clutch plate is made by soft magnetic material, and clutch plate is provided with z in the surface towards stator disc one side
bIndividual fan-shaped projection, fan-shaped projection is along circumferentially uniform.The angle ω of each fan-shaped projection satisfies
The fan-shaped projection of the described clutch plate driven magnetic pole of rear formation that is magnetized; Described active magnetic number of poles U, modulation number of magnetic poles n
s, the fan-shaped protruding quantity z of clutch plate
bRelation between the three satisfies following relation: n
i-z
b=kU, k are natural number.
The value of described k is 1.
Sketch advantage of the present utility model as follows:
The utlity model has that contactless wearing and tearing, noiselessness, driving torque are large, compact conformation, convenient processing and manufacture, permanent magnetic material use amount are little, low cost and other advantages.Adopt structure of the present utility model, only need mosaic magnet get final product on driving disc spacing pressing, clutch plate is made with soft magnetic material fully, thereby can simplify the clutch plate structure, reduce difficulty of processing and manufacturing cost, also can effectively avoid simultaneously the corrosion problem of clutch plate magnet, can be placed in mordant gas or liquid to clutch plate, realize inside and outside contactless deceleration transmission under closed environment, expanded the range of application of this series products.
Description of drawings
Fig. 1 is general assembly structural representation of the present utility model;
Fig. 2 is perspective view of the present utility model;
Fig. 3 is the driving disc spacing pressing structural representation;
Fig. 4 is the decomposing schematic representation of driving disc spacing pressing;
Fig. 5 is the structural representation of stator disc;
Fig. 6 is the structural representation of clutch plate;
Fig. 7 is structural representation of the present utility model after local magnetized;
Fig. 8 is the structural representation of the symmetrical side of the utility model in Fig. 7;
Fig. 9 is magnetic line of force schematic diagram in the utility model under inactive state;
Figure 10 is the magnetic line of force schematic diagram of the symmetrical side of the utility model in Fig. 9;
Figure 11 be driving disc spacing pressing when turning right in the utility model the magnetic line of force and driven magnetic pole be subjected to the force direction schematic diagram;
Figure 12 is that the magnetic line of force and the driven magnetic pole of the symmetrical side of the utility model in Figure 11 is subjected to the force direction schematic diagram.
Embodiment
In each accompanying drawing, letter " S " and " N " all represents magnetic pole magnetic.
As extremely shown in Figure 6 in Fig. 1, axial disk permanent magnetism deceleration device based on magnetization effect of the present utility model comprise along same axis side by side successively the interval driving disc spacing pressing 1, stator disc 2 and the clutch plate 3 of (contactless structure) are set, the center of driving disc spacing pressing 1, stator disc 2 and clutch plate 3 all is provided with centre bore, as Fig. 2 to centre bore 1A, 2A and the 3C of being respectively shown in Figure 6.The axis of described driving disc spacing pressing 1, stator disc 2 and clutch plate 3 is called axis of rotation 11.
Discoidal driving disc spacing pressing basal disc 5 and U fan-shaped permanent magnet 4 that described driving disc spacing pressing 1 is made by soft magnetic material form, and the shape and size of each fan-shaped permanent magnet 4 are all identical.Described fan-shaped permanent magnet 4 is as the active magnetic pole, and U is the natural number greater than 1, and the number of fan-shaped permanent magnet 4 shown in each accompanying drawing (being the value of U) is specially two, is respectively initiatively magnetic pole 4A and initiatively magnetic pole 4B.Each permanent magnet 4 (being active magnetic pole 4A, 4B shown in figure) all is fixed in driving disc spacing pressing basal disc 5 towards the surface of stator disc 2 one sides, and each permanent magnet 4 evenly distributes on same circumferencial direction, and the center of circle of these permanent magnet 4 distribution circles is positioned on described axis of rotation 11.Described permanent magnet 4 is axial magnetized, and its N, S extreme direction are parallel with axis of rotation 11.
As shown in Figure 5, described stator disc 2 is by n
sIndividual fan-shaped soft magnetic bodies disc 6 and n
sAlternate being assembled of individual fan-shaped non-magnetizer disc 7, described soft magnetic bodies disc 6 is all identical with the shape and size of non-magnetizer disc 7, the described fan-shaped soft magnetic bodies disc 6 rear formation modulation magnetic pole that is magnetized.The segment angle of soft magnetic bodies disc 6
Satisfy
The shape and size of described each soft magnetic bodies disc are all identical, and the shape and size of described each non-magnetizer disc are also all identical;
As Fig. 1, Fig. 2 and shown in Figure 6, described clutch plate 3 is made by soft magnetic material, comprises clutch plate basal disc 3A, and clutch plate basal disc 3A is provided with z in the surface towards stator disc 2 one sides
bIndividual fan-shaped protruding 3B, fan-shaped protruding 3B circumferentially evenly distributes along clutch plate 3.The angle of each fan-shaped protruding 3B is ω, and satisfies
The fan-shaped protruding 3B of the described clutch plate driven magnetic pole of rear formation that is magnetized.
Described active magnetic pole (being fan-shaped permanent magnet 4) quantity U, modulation magnetic pole (being soft magnetic bodies disc 6) quantity n
s, driven magnetic pole (being the fan-shaped protruding 3B of clutch plate) quantity z
bRelation between the three satisfies following relation: n
s-z
b=kU.Wherein k can be in natural scope value, the concrete value of k described in the present embodiment is 1, i.e. n
s-z
b=U.Certainly, those skilled in the art can make k choose other numerical value as required in natural scope.
As extremely shown in Figure 12 in Fig. 7, during use, soft magnetic material on 4 pairs of stator discs 2 of permanent magnet on driving disc spacing pressing 1 and clutch plate 3 magnetizes, make between driving disc spacing pressing 1 and stator disc 2, and produce mutual magneticaction between stator disc 2 and clutch plate 3, thereby realize power transmission untouchable between driving disc spacing pressing 1 and clutch plate 3 and motion transmission.Gearratio of the present utility model (speed reducing ratio) depends on the initiatively quantitative relation between magnetic pole, modulation magnetic pole and driven magnetic pole three, and gearratio is directly proportional to the quantity of driven magnetic pole, is inversely proportional to the quantity of active magnetic pole, and specific formula for calculation is gearratio
Below in conjunction with Fig. 7-Figure 12, transmission process of the present utility model is specifically described:
As shown in Figure 7 and Figure 8, initiatively magnetic pole A and initiatively magnetic pole B oppositely install, each initiatively magnetic pole respectively to the modulation magnetic pole magnetization at opposite position place on stator disc 2, and form modulated magnetic field.The fan-shaped protruding 3B that is positioned near the clutch plate 3 of modulated magnetic field is magnetized under the modulated magnetic field effect, becomes driven magnetic pole.Because the pole orientation of active magnetic pole A and active magnetic pole B is opposite, therefore be all an end N utmost point other end S utmost point after the modulation magnetic pole on stator disc 2 and the driven magnetic pole on clutch plate 3 are magnetized.
Arrow explanation in Fig. 9, Figure 10, Figure 11 and Figure 12: the large arrow in Fig. 9 represents the flow direction of the magnetic line of force, the driven magnetic pole of small arrow (be positioned at driven magnetic pole place) expression be subjected to force direction, the letter " F " at small arrow place represents that the driven magnetic pole in this place is subject to active force.Arrow implication in Figure 10 is identical with Fig. 9.In Figure 11 and Figure 12, the arrow of permanent magnetism deceleration device of the present utility model top represents the direction of motion of driving disc spacing pressing 1, the arrow of permanent magnetism deceleration device of the present utility model below represents the direction of motion of clutch plate 3, and the implication of other arrows in Figure 11 and Figure 12 is with the implication of corresponding arrow in Fig. 9.
As shown in Figure 9 and Figure 10, initiatively magnetic pole A and initiatively magnetic pole B, and the modulation magnetic pole of corresponding section and driven magnetic pole have consisted of a complete closed magnetic circuit.The magnetic line of force flows to as shown in Figure 9 and Figure 10, and the magnetic line of force flows out from the N utmost point of active magnetic pole A, arrives driven magnetic pole through the modulation magnetic pole; Then, the magnetic line of force flows to the initiatively N utmost point of the driven magnetic pole of magnetic pole B corresponding position along the basal disc of clutch plate 3, arrives at the initiatively S utmost point of magnetic pole B by the modulation magnetic pole.At last, turn back to the initiatively S utmost point of magnetic pole A by driving disc spacing pressing basal disc 5, form a closed magnetic circuit.
According to magnetic pole two like magnetic poles repel each other principle of opposite sex attraction, be attraction between active magnetic pole and modulation magnetic pole, modulation magnetic pole and driven magnetic pole in Fig. 9 and Figure 10, because the relative position of each magnetic pole has symmetry, initiatively between magnetic pole and modulation magnetic pole, the active force modulated between magnetic pole and driven magnetic pole makes a concerted effort to be 0, namely is in the stress balance state.
Suppose that driving disc spacing pressing 1 is subject to external force and rotates (driven magnetic pole be not subjected to external force therefore motionless) to dextrad, and when reaching Figure 11 and position shown in Figure 12, the magnetic line of force flow through route such as Figure 11 and shown in Figure 12.At this moment, the attraction between each modulation magnetic pole and driven magnetic pole is balance no longer, each driven magnetic pole be subjected to force direction unanimously left, and the direction of the Moment of the driven magnetic pole of active magnetic pole A, B corresponding position is identical.This moment drives clutch plate 3 and rotates, thereby realizes power transmission and motion transmission between driving disc spacing pressing 1 and clutch plate 3.
Certainly, the utility model includes but not limited to the present embodiment.The quantity U of permanent magnet 4 is not limited to two shown in the drawings as described, also can be set to more than three.When U was even number, the N of two adjacent permanent magnets 4, S extreme direction were opposite; When U was odd number, except N, the S extreme direction of a pair of adjacent permanent magnet 4 were identical, the N of all the other adjacent permanent magnet 4, S extreme direction were opposite.Within this type of conversion all drops on protection range of the present utility model.
Claims (2)
1. based on the axial disk permanent magnetism deceleration device of magnetization effect, it is characterized in that: comprise along the same axis driving disc spacing pressing, stator disc and the clutch plate that arrange of interval successively side by side; Described axis is called axis of rotation;
Disc basal disc and U fan-shaped permanent magnet that described driving disc spacing pressing is made by soft magnetic material form, and U is the natural number greater than 1; Each permanent magnet all is fixed in basal disc towards the surface of stator disc one side, and the evenly distribution on same circumferencial direction of each permanent magnet, and the center of circle of this permanent magnet distribution circle is positioned on described axis of rotation; Described permanent magnet is axial magnetized, and its N, S extreme direction are parallel with axis of rotation; When U was even number, the N of two adjacent permanent magnets, S extreme direction were opposite; When U was odd number, except N, the S extreme direction of a pair of adjacent permanent magnet were identical, the N of all the other adjacent permanent magnet, S extreme direction were opposite, and described fan-shaped permanent magnet is as the active magnetic pole;
Described stator disc by
Individual fan-shaped soft magnetic bodies disc and
Alternate being assembled of individual fan-shaped non-magnetizer disc, the described fan-shaped soft magnetic bodies disc rear formation modulation magnetic pole that is magnetized; The segment angle of soft magnetic bodies disc
Satisfy
Described clutch plate is made by soft magnetic material, and clutch plate is provided with in the surface towards stator disc one side
Individual fan-shaped projection, fan-shaped projection is along circumferentially uniform;
The angle of each fan-shaped projection
Satisfy
, the fan-shaped projection of the described clutch plate driven magnetic pole of rear formation that is magnetized;
Described active magnetic number of poles U, modulation number of magnetic poles
, the fan-shaped protruding quantity of clutch plate
Relation between the three satisfies following relation:
, k is natural number.
2. the axial disk permanent magnetism deceleration device based on magnetization effect according to claim 1, it is characterized in that: the value of described k is 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220671846 CN203014639U (en) | 2012-12-10 | 2012-12-10 | Axial disc type permanent magnetic speed reducer based on magnetization effects |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220671846 CN203014639U (en) | 2012-12-10 | 2012-12-10 | Axial disc type permanent magnetic speed reducer based on magnetization effects |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203014639U true CN203014639U (en) | 2013-06-19 |
Family
ID=48606195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220671846 Withdrawn - After Issue CN203014639U (en) | 2012-12-10 | 2012-12-10 | Axial disc type permanent magnetic speed reducer based on magnetization effects |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203014639U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103001454A (en) * | 2012-12-10 | 2013-03-27 | 河南理工大学 | Axial disk permanent magnetic reduction gear based on magnetization effect |
-
2012
- 2012-12-10 CN CN 201220671846 patent/CN203014639U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103001454A (en) * | 2012-12-10 | 2013-03-27 | 河南理工大学 | Axial disk permanent magnetic reduction gear based on magnetization effect |
| CN103001454B (en) * | 2012-12-10 | 2015-05-06 | 河南理工大学 | Axial disk permanent magnetic reduction gear based on magnetization effect |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130619 Effective date of abandoning: 20150506 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20130619 Effective date of abandoning: 20150506 |
|
| RGAV | Abandon patent right to avoid regrant |