CN103423335A - Magnetic coupling device - Google Patents
Magnetic coupling device Download PDFInfo
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- CN103423335A CN103423335A CN2013101666481A CN201310166648A CN103423335A CN 103423335 A CN103423335 A CN 103423335A CN 2013101666481 A CN2013101666481 A CN 2013101666481A CN 201310166648 A CN201310166648 A CN 201310166648A CN 103423335 A CN103423335 A CN 103423335A
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- rotation
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- acting surface
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Abstract
The invention provides magnetic coupling device, which can raise transmission torque and well transmit the torque without changing an integral volume of the device. The device comprises a driven side rotator and drive side rotator, of which the action surfaces are oppositely arranged and which are capable of rotating along a common and communicated central shaft L; in an internal circumferential area where each action surface of the driven side rotator and the drive side rotator is close to the central shaft L, a plate and a friction material which are pressedly connected to generate a friction force in the case that the distance between the driven side rotator and the drive side rotator is below a predetermined value; and a magnetic unit which can generate magnetic attraction along the central shaft L in the external circumferential area more close to the diameter external side than the position with the plate and the friction material on each action surface of the driven side rotator and the drive side rotator.
Description
Technical field
The present invention relates to a kind of magnetic force hitch bar, it possess that mutual acting surface arranges in opposite directions in the mode that approaches/deviate from and separately can around along and the 1st solid of rotation and the 2nd solid of rotation of the direction of the acting surface quadrature common running shaft rotation of extending, approach/deviate from and can be switched the transmission of torque of the magnetic force that produces between the acting surface based at the 1st solid of rotation and the 2nd solid of rotation by the acting surface that makes the 1st solid of rotation and the 2nd solid of rotation.
Background technique
Existing, as an example of the mechanism that transmits rotating torques, known have a magnetic force hitch bar shown in following.For example, it possess mutual acting surface with separate and mode in opposite directions sets and separately can around along and the 1st solid of rotation and the 2nd solid of rotation of the direction of the acting surface quadrature running shaft rotation of extending, the solid of rotation transmitting torque by the magnetic force produced between the acting surface at the 1st solid of rotation and the 2nd solid of rotation from the solid of rotation of a side to opposite side.(for example,, with reference to patent documentation 1).
Patent documentation 1:WO2009/142258 communique
Summary of the invention
Yet, in the magnetic force hitch bar proposed in above-mentioned patent documentation 1, in order to improve transmitting torque, need to make device maximize, be difficult in the situation that maintain the raising that the whole volume of existing device is realized transmitting torque.In addition, also there is following problem: when solid of rotation is become to approaching state from deviating to the form displacement that does not produce the distance of effect between two solid of rotation in opposite directions (, make clutch become jointing state from separated state), the rotation tracing ability of slave end solid of rotation can be subject to the restriction of load, so under high load condition, the rotation tracing ability is poor, thereby 2 solid of rotation do not reach rotary synchronous.
The present invention is in view of above-mentioned actual conditions, and its purpose is to provide a kind of magnetic force hitch bar, rotation tracing ability when it can improve the driving side solid of rotation to the transmission of torque of slave end solid of rotation and high capacity.
In order to reach above-mentioned purpose, a kind of magnetic force hitch bar the present invention relates to, solve in the following manner the problems referred to above: this magnetic force hitch bar possesses: the 1st solid of rotation, and the 2nd solid of rotation, it is opposed that the 1st acting surface of described the 1st solid of rotation and the 2nd acting surface of described the 2nd solid of rotation can approach or deviate from ground mutually, the running shaft of the total direction with described the 1st acting surface and described the 2nd acting surface quadrature of described the 1st solid of rotation and described the 2nd solid of rotation, and around this running shaft rotation, described the 1st acting surface and described the 2nd acting surface approach, magnetic force based on producing between the 1st acting surface and the 2nd acting surface, described the 1st solid of rotation is combined with described the 2nd solid of rotation magnetic force, thereby the solid of rotation of the side from described the 1st solid of rotation and described the 2nd solid of rotation is to the solid of rotation transmitting torque of opposite side, described magnetic force hitch bar is characterised in that, also comprise: the 1st parts that described the 1st solid of rotation has, and the 2nd parts that have of described the 2nd solid of rotation, described the 1st parts and described the 2nd parts are along with described the 1st solid of rotation and described the 2nd solid of rotation approaches or deviate from and close to each other or deviate from, approach and magnetic force while being combined described the 1st parts and described the 2nd parts frictional engagement at described the 1st solid of rotation and described the 2nd solid of rotation.
The present invention is preferred, in the medial region radially with respect to described running shaft, described the 1st parts and described the 2nd parts is set, and in the exterior lateral area radially with respect to described running shaft, described the 1st acting surface and described the 2nd acting surface is set.
The present invention is preferred, in the exterior lateral area radially with respect to described running shaft, described the 1st parts and described the 2nd parts is set, and in the medial region radially with respect to described running shaft, described the 1st acting surface and described the 2nd acting surface is set.
The present invention is preferred, also comprises: the magnetic force unit, it produces along the axial magnetic attracting force of described rotation on described the 1st acting surface and described the 2nd acting surface.
The present invention is preferred, described magnetic force unit comprises: the magnetite group, it has on the side acting surface be arranged in described the 1st acting surface and the 2nd acting surface, along a plurality of magnetites circumferentially arranged with predetermined distance centered by described running shaft, and the plurality of magnetite be take the mode that adjacent magnetite magnetic pole each other is heteropole and is formed; And magnetic group, it has on the opposite side acting surface be arranged in described the 1st acting surface and the 2nd acting surface, along a plurality of magnetics of circumferentially arranging with predetermined distance of described running shaft, and with at described the 1st solid of rotation when the 2nd solid of rotation magnetic force is combined, each magnetic of described a plurality of magnetics and each magnetite of described a plurality of magnetites mutually mode in opposite directions form.
The present invention is preferred, and at least one party in described the 1st parts and described the 2nd parts is pressed on axial and described the 1st parts of described running shaft and described the 2nd parts direction close to each other by Flexible element.
The present invention is preferred, and the 1st parts of being pressed by described Flexible element and/or described the 2nd parts make it can not cross this limiting unit on axially and move described by limiting unit.
In addition, the present invention relates to a kind of method of operating of magnetic force hitch bar, if the 1st solid of rotation and the 2nd solid of rotation are approached, both magnetic force combinations, thereby the solid of rotation from the solid of rotation of a side to opposite side transmits rotating torques, if make both deviate from that described magnetic force is in conjunction with being disengaged, the method for operating of described magnetic force hitch bar is characterised in that: at described the 1st solid of rotation when described the 2nd solid of rotation magnetic force is combined, the 1st solid of rotation and the 2nd solid of rotation frictional engagement.
In magnetic force hitch bar of the present invention, the transmitting torque that the magnetic attracting force effect of the magnetic force unit by the 1st solid of rotation and the 2nd solid of rotation is produced, the transmitting torque of the frictional force produced during friction material crimping that the additional plate based on possessing at the 1st solid of rotation and the 2nd solid of rotation possess, thereby the transmitting torque of raising device integral body.And then, can improve the rotation tracing ability of slave end solid of rotation when the switching from from separated state to jointing state of clutch function, for this aforesaid transmission characteristics, can play great effect.
The accompanying drawing explanation
Fig. 1 schematically shows the explanatory drawing as the magnetic force hitch bar of embodiments of the present invention with partial cross section.
Fig. 2 means the figure of structure of the acting surface of the slave end solid of rotation in the magnetic force hitch bar shown in Fig. 1, means the explanatory drawing of the situation of observing from the driving side solid of rotation.
Fig. 3 means the figure of structure of the acting surface of the driving side solid of rotation in the magnetic force hitch bar shown in Fig. 1, means the explanatory drawing of the situation of observing from the slave end solid of rotation.
Fig. 4 means the explanatory drawing of position relationship of the magnetic plate state in opposite directions of the magnetite group of slave end solid of rotation and driving side solid of rotation.
Fig. 5 is the explanatory drawing with the slave end solid of rotation in the magnetic force hitch bar shown in partial cross section presentation graphs 1 and the approaching state (so-called clutch jointing state) of driving side solid of rotation.
Fig. 6 schematically shows other embodiments' of the magnetic force hitch bar the present invention relates to explanatory drawing with partial cross section.
The explanation of symbol
10 slave end solid of rotation (the 1st solid of rotation)
12 axle holding parts
20 driving side solid of rotation (the 2nd solid of rotation)
123 limiting parts
13 spring holding parts
14 magnetite holding parts
131 coil springs (spring members)
132 plates
141 acting surfaces
15 magnetite groups
151 permanet magnets
22 outer regions sections
221 acting surfaces
23 magnetic plates
231 yoke tooth groups
241 friction plates
L central shaft (running shaft)
Embodiment
Preferred implementation referring to accompanying drawing to the magnetic force hitch bar that the present invention relates at length describes.
Fig. 1 schematically shows the explanatory drawing as the magnetic force hitch bar of embodiments of the present invention with partial cross section.Illustrative magnetic force hitch bar comprises slave end solid of rotation (the 1st solid of rotation) 10 and driving side solid of rotation (the 2nd solid of rotation) 20 and forms herein.
Driving side solid of rotation 20 is for having the discoideus form of the profile roughly the same with slave end solid of rotation 10, and zone is formed with the axle holding part 12 that can make slave end solid of rotation 10 and runs through penetration hole 20a wherein in the central.Be equipped with bearing 21 between this penetration hole 20a of this driving side solid of rotation 20 and axle holding part 12, make rotating force can not directly transmit between axle holding part 12 and driving side solid of rotation 20.
Above-mentioned driving side solid of rotation 20 provides driving force due to illustrated driver element never, thereby usining the central axis L of axle holding part 12 rotates around it as running shaft, and mode the endwisely slipping along central axis L approach/to deviate from slave end solid of rotation 10.
In above-mentioned driving side solid of rotation 20, the outside, the footpath of the equipping position of bearing 21 is and the magnetite holding part 14 outer regions section 22 in opposite directions of slave end solid of rotation 10, with slave end solid of rotation 10 circular face in opposite directions, forms acting surface 221.Be provided with magnetic plate 23 at this acting surface 221.Magnetic plate 23 as shown in Figure 3, consists of the yoke tooth group 231 of a plurality of (in illustrated example being 30) magnetic.Yoke tooth group 231 equally spaced is configured on the circumference centered by central axis L, and each composed component has direction outside footpath and width becomes large shape gradually.In addition, these yoke tooth groups 231 are surrounded with aluminium 232 by foucault current, in other words, are embedded with foucault current aluminium.
In addition, in regional section of the interior week of driving side solid of rotation 20, with above-mentioned plate 132 form in opposite directions, to be equipped with friction material 241.
Yet, in the present embodiment, above-mentioned plate 132 reduces by slave end solid of rotation 10 and the spacing of driving side solid of rotation 20, and friction material 241 crimping that possess of this plate 132 of possessing of slave end solid of rotation 10 and driving side solid of rotation 20, thereby the frictional force generation torque based on producing between its and this friction material.
In addition, in the present embodiment, the area of the area of magnetite group 15 and the yoke tooth group 231 paired with it is preferably in the situation that slave end solid of rotation 10 is below prescribed level with the spacing of driving side solid of rotation 20, make the axial magnetic attracting force along central axis L acted between the two, for roughly with the degree identical with repulsive force sum based on foucault current along the axial repulsive force of central axis L of restoring force based on coil spring 131, also can be for more than it.
In thering is the magnetic force hitch bar of above this structure, in mode as follows from driving side solid of rotation 20 to slave end solid of rotation 10 transmitting torques.
By driver element, make driving side solid of rotation 20 to slide with the approaching mode of slave end solid of rotation 10 when central axis L is rotated.In the situation that slave end solid of rotation 10 is below prescribed level with the spacing of driving side solid of rotation 20, between the magnetic plate 23 of the magnetite group 15 of slave end solid of rotation 10 and driving side solid of rotation 20, as shown in Figure 4, magnetite group 15 and yoke tooth group 231 are in opposite directions and magnetic attracting force generation effect, with the form of the rotation around central axis L of following driving side solid of rotation 20, slave end solid of rotation 10 accelerates rotation around central axis L.
Similarly, as shown in Figure 5, slide driving side solid of rotation 20 mobile with the spacing of slave end solid of rotation 10 as prescribed level when following with the approaching mode of slave end solid of rotation 10 take, the active force that friction plate 241 by possessing based on driving side solid of rotation 20 and the friction that plate 132 crimping that slave end solid of rotation 10 possesses produce produce, strengthen rotating torques, slave end solid of rotation 10 synchronously rotates with driving side solid of rotation 20.By the active force based on this friction, even, in the situation that the load of slave end solid of rotation 10 is high capacity, also can significantly improve the rotation tracing ability.
In above-mentioned magnetic force hitch bar, torque to the magnetic attracting force generation of the sense of rotation around central axis L by producing between the magnetic plate 23 of the magnetite group 15 of slave end solid of rotation 10 and driving side solid of rotation 20, friction material 241 crimping that the additional plate possessed based on slave end solid of rotation 10 132 and driving side solid of rotation 20 possess and the frictional force that produces are as torque, thereby can improve transmitting torque, and, improve the rotation tracing ability of slave end solid of rotation 10, can reach good transmission of torque.
Mean other embodiments of the present invention in Fig. 6.Wherein, the symbol in figure, mark identical label to playing with the element of above-mentioned present embodiment same function.Herein, slave end solid of rotation 10 possesses plate 132 in footpath outer regions section, and in footpath, all regional sections have magnetite group 15.In addition, driving side solid of rotation 20 possesses friction material 241 in outer regions section 22, in the inner circumferential side, footpath, has magnetic plate 23.Also can play the effect identical with present embodiment in the situation that will construct change as shown in Figure 6.
In addition, in the present embodiment, although possess plate 132 and magnetite group 15 for slave end solid of rotation 10, driving side solid of rotation 20 possesses friction material 241 and magnetic plate 23, the foucault current form with aluminium 232, connect also and can reach purpose of the present invention even but change these, thereby within the scope of the present invention.
In addition, in the present embodiment, illustrative to be yoke tooth group 231 configure usining on the circumference of central axis L as center, and each composed component has direction outside footpath and becomes gradually large shape, but yoke tooth group 231 is not must be above-mentioned shape.(can also be for example the cuboid of easily making).
As mentioned above, the magnetic force hitch bar the present invention relates to is applicable to: the magnetic force produced between the 1st solid of rotation that utilization arranges with separation and mode in opposite directions at mutual acting surface and the acting surface of the 2nd solid of rotation is passed to torque the solid of rotation of opposite side from the solid of rotation of a side.
Claims (8)
1. a magnetic force hitch bar, it possesses:
The 1st solid of rotation; And
The 2nd solid of rotation,
It is opposed that the 1st acting surface of described the 1st solid of rotation and the 2nd acting surface of described the 2nd solid of rotation can approach or deviate from ground mutually,
The running shaft of the total direction with described the 1st acting surface and described the 2nd acting surface quadrature of described the 1st solid of rotation and described the 2nd solid of rotation, and around this running shaft rotation,
Described the 1st acting surface and described the 2nd acting surface approach, magnetic force based on producing between the 1st acting surface and the 2nd acting surface, described the 1st solid of rotation is combined with described the 2nd solid of rotation magnetic force, thereby the solid of rotation of the side from described the 1st solid of rotation and described the 2nd solid of rotation is to the solid of rotation transmitting torque of opposite side
Described magnetic force hitch bar is characterised in that, also comprises:
The 1st parts that described the 1st solid of rotation has; And
The 2nd parts that described the 2nd solid of rotation has,
Described the 1st parts and described the 2nd parts are along with described the 1st solid of rotation and described the 2nd solid of rotation approaches or deviate from and close to each other or deviate from,
Approach and magnetic force while being combined described the 1st parts and described the 2nd parts frictional engagement at described the 1st solid of rotation and described the 2nd solid of rotation.
2. magnetic force hitch bar as claimed in claim 1 is characterized in that:
In the medial region radially with respect to described running shaft, described the 1st parts and described the 2nd parts are set,
In the exterior lateral area radially with respect to described running shaft, described the 1st acting surface and described the 2nd acting surface are set.
3. magnetic force hitch bar as claimed in claim 1 is characterized in that:
In the exterior lateral area radially with respect to described running shaft, described the 1st parts and described the 2nd parts are set,
In the medial region radially with respect to described running shaft, described the 1st acting surface and described the 2nd acting surface are set.
4. magnetic force hitch bar as claimed any one in claims 1 to 3, is characterized in that, also comprises:
The magnetic force unit, it produces along the axial magnetic attracting force of described rotation on described the 1st acting surface and described the 2nd acting surface.
5. magnetic force hitch bar as described as any one in claim 1 to 4 is characterized in that:
Described magnetic force unit comprises:
The magnetite group, it has on the side acting surface be arranged in described the 1st acting surface and the 2nd acting surface, along a plurality of magnetites circumferentially arranged with predetermined distance centered by described running shaft, and the plurality of magnetite be take the mode that adjacent magnetite magnetic pole each other is heteropole and is formed; And
The magnetic group, it has on the opposite side acting surface be arranged in described the 1st acting surface and the 2nd acting surface, along a plurality of magnetics of circumferentially arranging with predetermined distance of described running shaft, and with at described the 1st solid of rotation when the 2nd solid of rotation magnetic force is combined, each magnetic of described a plurality of magnetics and each magnetite of described a plurality of magnetites mutually mode in opposite directions form.
6. magnetic force hitch bar as described as any one in claim 1 to 5 is characterized in that:
At least one party in described the 1st parts and described the 2nd parts is pressed on axial and described the 1st parts of described running shaft and described the 2nd parts direction close to each other by Flexible element.
7. magnetic force hitch bar as claimed in claim 6 is characterized in that:
The 1st parts of being pressed by described Flexible element and/or described the 2nd parts, make it can not cross this limiting unit on axially and move described by limiting unit.
8. the method for operating of a magnetic force hitch bar, if the 1st solid of rotation and the 2nd solid of rotation are approached, both magnetic force combinations, thereby the solid of rotation from the solid of rotation of a side to opposite side transmits rotating torques, if make both deviate from described magnetic force combination, be disengaged, the method for operating of described magnetic force hitch bar is characterised in that:
At described the 1st solid of rotation when described the 2nd solid of rotation magnetic force is combined, the 1st solid of rotation and the 2nd solid of rotation frictional engagement.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012-106484 | 2012-05-08 | ||
| JP2012106484A JP2013234699A (en) | 2012-05-08 | 2012-05-08 | Magnetic coupling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103423335A true CN103423335A (en) | 2013-12-04 |
Family
ID=49648532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101666481A Pending CN103423335A (en) | 2012-05-08 | 2013-05-08 | Magnetic coupling device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2013234699A (en) |
| CN (1) | CN103423335A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103637547A (en) * | 2013-12-19 | 2014-03-19 | 陈津辰 | Mutual magnet suction rotating dining table |
| CN110637170A (en) * | 2017-03-19 | 2019-12-31 | 学校法人早稻田大学 | Torque limiter |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3053365A (en) * | 1959-11-17 | 1962-09-11 | Bendix Corp | Coupling device |
| JPH05168222A (en) * | 1991-12-18 | 1993-07-02 | Heriosu:Kk | Method of preventing excessive torque and its preventive device |
| US5376862A (en) * | 1993-01-28 | 1994-12-27 | Applied Materials, Inc. | Dual coaxial magnetic couplers for vacuum chamber robot assembly |
| JPH07308060A (en) * | 1994-05-11 | 1995-11-21 | Yaskawa Electric Corp | Magnetic coupling device |
| CN102037257A (en) * | 2008-05-21 | 2011-04-27 | 株式会社松荣工机 | Magnetic coupling device |
| CN102322486A (en) * | 2011-09-01 | 2012-01-18 | 陈忠永 | Overload protection type coupling |
-
2012
- 2012-05-08 JP JP2012106484A patent/JP2013234699A/en active Pending
-
2013
- 2013-05-08 CN CN2013101666481A patent/CN103423335A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3053365A (en) * | 1959-11-17 | 1962-09-11 | Bendix Corp | Coupling device |
| JPH05168222A (en) * | 1991-12-18 | 1993-07-02 | Heriosu:Kk | Method of preventing excessive torque and its preventive device |
| US5376862A (en) * | 1993-01-28 | 1994-12-27 | Applied Materials, Inc. | Dual coaxial magnetic couplers for vacuum chamber robot assembly |
| JPH07308060A (en) * | 1994-05-11 | 1995-11-21 | Yaskawa Electric Corp | Magnetic coupling device |
| CN102037257A (en) * | 2008-05-21 | 2011-04-27 | 株式会社松荣工机 | Magnetic coupling device |
| CN102322486A (en) * | 2011-09-01 | 2012-01-18 | 陈忠永 | Overload protection type coupling |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103637547A (en) * | 2013-12-19 | 2014-03-19 | 陈津辰 | Mutual magnet suction rotating dining table |
| CN110637170A (en) * | 2017-03-19 | 2019-12-31 | 学校法人早稻田大学 | Torque limiter |
| CN110637170B (en) * | 2017-03-19 | 2021-12-14 | 学校法人早稻田大学 | Torque limiter |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2013234699A (en) | 2013-11-21 |
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Application publication date: 20131204 |