CN102931810A - Interaxial permanent magnet coupling mechanism - Google Patents
Interaxial permanent magnet coupling mechanism Download PDFInfo
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- CN102931810A CN102931810A CN2012104867172A CN201210486717A CN102931810A CN 102931810 A CN102931810 A CN 102931810A CN 2012104867172 A CN2012104867172 A CN 2012104867172A CN 201210486717 A CN201210486717 A CN 201210486717A CN 102931810 A CN102931810 A CN 102931810A
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Abstract
The invention relates to a mechanism transmission device, in particular to an interaxial permanent magnet coupling mechanism used for transmitting torque between two axes of rotation. The mechanism comprises an inner permanent magnet rotor and an outer permanent magnet rotor, which are arranged coaxially, wherein the outer permanent magnet rotor is shaped like a cylinder; the inner permanent magnet rotor is arranged in the inner cavity of the outer permanent magnet rotor; inner permanent magnets and outer permanent magnets are distributed on the inner permanent magnet rotor and the outer permanent magnet rotor respectively; an air gap is formed between the inner permanent magnet rotor and the outer permanent magnet rotor; a plurality of inner permanent magnets on the inner permanent magnet rotor are distributed along the circumference; inner magnetizers made of permeability magnetic materials are put between the adjacent inner permanent magnets; the magnetic pole directions of the inner permanent magnets are in the circumferential direction of the inner permanent magnet rotor; and the magnetic pole directions of the adjacent inner permanent magnets are opposite or reverse. The mechanism can transmit bigger torque, can adjust the transmitted torque, has compact structure and low requirement for installation precision and is stable and reliable in transmission and adjustment.
Description
Technical field
The present invention relates to a kind of mechanism transmission device, specifically a kind of between centers permanent magnet coupling mechanism for transmitting torque between two rotating shafts.
Background technology
Output and adjustment for moment of torsion have various ways in the prior art, specifically comprise:
1, present industry-wide coupling body, these mechanisms mostly are rigidity or Hydraulic coupling connection etc., and transmitting torque and rotating speed are unadjustable.Because running situation is complicated and changeable, is difficult to accurately guarantee diaxon centering, equipment all can produce vibration after operation a period of time, thereby equipment life is shortened in accelerated wear test.
2, current frequency control is widely used in the industry spot, controls output speed by the control motor, and price comparison is expensive, structure and complicated operation, the power electronic device of frequency converter is operated on off state, thereby produces a large amount of harmonic waves, pollute electrical network, affect communication, and electronic device stability is bad, easily aging, useful life is not long, and to having relatively high expectations of environment, ambient temperature and humidity and dust there are very large requirement, are not suitable in rugged environment, working.
3, at present existingly be used for the permanent magnet coupling mechanism that permanent magnetic speed-adjusting drives, its basic structure is: the conductor rotor and the p-m rotor that are installed on the rotation axis separately are set, and conductor rotor is with the coaxial setting of p-m rotor and maintain air gap; In the course of work, when conductor rotor and p-m rotor relatively rotate, then because the electromagnetic action between permanent magnetic field and the conductor makes the moment that generations is coupled both between conductor rotor and the p-m rotor, reach the purpose that moment of torsion is exported; By regulating the effect air gap between conductor rotor and the p-m rotor, can obtain adjustable load torque and rotating speed, reach the purpose of speed governing.This class coupler of existing structure, magnetic direction in its circumferential permanent magnet is normally perpendicular to the magnetic fields face between conductor rotor and the p-m rotor, its Distribution of Magnetic Field is loose and intensity is not high, and (high magnetic flux density can only reach 400 ~ 500mT), if the larger moment of torsion of transmission, what need that bar structure does is larger, has limited the popularization of this technology.
Summary of the invention
Technical problem to be solved by this invention is, existing permanent magnet coupling mechanism is improved, provide a kind of Distribution of Magnetic Field to concentrate, the magnetic flux density at inside and outside p-m rotor acting surface place is large, can transmit than high pulling torque, can regulate transmitting torque, and compact conformation, installation accuracy be required steadily reliable between centers permanent magnet coupling mechanism of low, transmission and adjusting.
Between centers permanent magnet coupling of the present invention mechanism includes interior p-m rotor and the outer p-m rotor of coaxial setting, outer p-m rotor is drum, interior p-m rotor is arranged in outer p-m rotor inner chamber, be distributed with respectively interior permanent magnet and outer permanent magnet on interior p-m rotor and the outer p-m rotor, have air gap between interior p-m rotor and the outer p-m rotor; A plurality of interior permanent magnet on the described interior p-m rotor circumferentially is mounted with the interior magnetic conductor of being made by permeability magnetic material between adjacent interior permanent magnet; The pole orientation of described interior permanent magnet (being the line direction of the S utmost point and the N utmost point) is positioned on the circumferencial direction of p-m rotor, and the pole orientation of adjacent interior permanent magnet in opposite directions or opposing.
A plurality of outer permanent magnet on the described outer p-m rotor circumferentially is mounted with the outer magnetizer of being made by permeability magnetic material between adjacent outer permanent magnet; The pole orientation of described outer permanent magnet (being the line direction of the S utmost point and the N utmost point) is positioned on the circumferencial direction of outer p-m rotor, and the pole orientation of adjacent outer permanent magnet in opposite directions or opposing.
This mechanism also includes the adjusting device of the relative axial position that can change interior p-m rotor and outer p-m rotor, is used for regulating air gap scope between interior p-m rotor and the outer p-m rotor.
The present invention adopts the structural principle of permanent magnet coupling speed governing, magnetic structure to p-m rotor carries out creationary optimization, by a kind of magnetic architecture of novel permanent magnetic field is provided, make permanent magnetic field can more concentrate on acting surface between the inside and outside p-m rotor, make the magnetic circuit gap produce higher permanent magnetic field (high magnetic flux density can reach more than the 1500mT), thereby can under less volume, transmit larger moment of torsion; By adjusting device the relative axial position of inside and outside p-m rotor is regulated, can be changed the active area between interior outer magnet, thereby can obtain adjustable output torque and rotational speed; Inside and outside p-m rotor can be realized the power non contact transmission by the magnetic fields transmitting torque, eliminates vibration; and can allow the larger error of centralization; reduce equipment precision requirement and installation difficulty, when apparatus overload, can also protect equipment, realized soft start function.
Description of drawings
Fig. 1 is the cross section structure schematic diagram of the embodiment of the invention;
Fig. 2 is the vertical section structure schematic diagram of the embodiment of the invention.
Embodiment
As shown in the figure, this between centers permanent magnet coupling mechanism includes interior p-m rotor 1 and the outer p-m rotor 2 of coaxial setting, outer p-m rotor 2 is drum, interior p-m rotor 1 is arranged in outer p-m rotor 2 inner chambers, be distributed with permanent magnet on interior p-m rotor 1 and the outer p-m rotor 2, have air gap 3 between interior p-m rotor 1 and the outer p-m rotor 2.A plurality of interior permanent magnet 11 on the interior p-m rotor 1 circumferentially is mounted with the interior magnetic conductor 12 of being made by permeability magnetic material between adjacent interior permanent magnet 11; The pole orientation of described interior permanent magnet 11 (being the line direction of the S utmost point and the N utmost point) is positioned on the circumferencial direction of p-m rotor 1, and the pole orientation of adjacent interior permanent magnet 11 in opposite directions or opposing.A plurality of outer permanent magnet 21 on the outer p-m rotor 2 circumferentially is mounted with the outer magnetizer 22 of being made by permeability magnetic material between adjacent outer permanent magnet 21; The pole orientation of described outer permanent magnet 21 (being the line direction of the S utmost point and the N utmost point) is positioned on the circumferencial direction of outer p-m rotor 2, and the pole orientation of adjacent outer permanent magnet 21 in opposite directions or opposing.This mechanism also includes the adjusting device 4 of the relative axial position that can change interior p-m rotor 1 and outer p-m rotor 2, is used for regulating active area between interior p-m rotor and the outer p-m rotor.Adjusting device 4 can adopt various general mechanical structures to realize, but manual adjustment also can be regulated automatically.
Claims (3)
1. between centers permanent magnet coupling mechanism, it is characterized in that: it includes interior p-m rotor (1) and the outer p-m rotor (2) of coaxial setting, outer p-m rotor (2) is drum, interior p-m rotor (1) is arranged in outer p-m rotor (2) inner chamber, be distributed with permanent magnet on interior p-m rotor (1) and the outer p-m rotor (2), have air gap (3) between interior p-m rotor (1) and the outer p-m rotor (2); A plurality of interior permanent magnet (11) on the described interior p-m rotor (1) circumferentially is mounted with the interior magnetic conductor (12) of being made by permeability magnetic material between adjacent interior permanent magnet (11); The pole orientation of described interior permanent magnet (11) is positioned on the circumferencial direction of p-m rotor (1), and the pole orientation of adjacent interior permanent magnet (11) in opposite directions or opposing.
2. between centers permanent magnet coupling according to claim 1 mechanism, it is characterized in that: a plurality of outer permanent magnet (21) on the outer p-m rotor (2) circumferentially is mounted with the outer magnetizer (22) of being made by permeability magnetic material between adjacent outer permanent magnet (21); The pole orientation of described outer permanent magnet (21) is positioned on the circumferencial direction of outer p-m rotor (2), and the pole orientation of adjacent outer permanent magnet (21) in opposite directions or opposing.
3. between centers permanent magnet coupling according to claim 1 and 2 mechanism, it is characterized in that: this mechanism also includes the adjusting device (4) of the relative axial position that can change interior p-m rotor (1) and outer p-m rotor (2).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104867172A CN102931810A (en) | 2012-11-27 | 2012-11-27 | Interaxial permanent magnet coupling mechanism |
| PCT/CN2013/001249 WO2014082371A1 (en) | 2012-11-27 | 2013-10-14 | Permanent magnet coupling mechanism between shafts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104867172A CN102931810A (en) | 2012-11-27 | 2012-11-27 | Interaxial permanent magnet coupling mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102931810A true CN102931810A (en) | 2013-02-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104867172A Pending CN102931810A (en) | 2012-11-27 | 2012-11-27 | Interaxial permanent magnet coupling mechanism |
Country Status (1)
| Country | Link |
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| CN (1) | CN102931810A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014082371A1 (en) * | 2012-11-27 | 2014-06-05 | 镇江市江南矿山机电设备有限公司 | Permanent magnet coupling mechanism between shafts |
| WO2015176559A1 (en) * | 2014-05-21 | 2015-11-26 | 江苏磁谷科技股份有限公司 | Permanent-magnet coupling self-alignment protective device |
| WO2016086518A1 (en) * | 2014-12-05 | 2016-06-09 | 刁俊起 | Permanent magnet speed governor having fixed magnetic gap |
Citations (6)
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|---|---|---|---|---|
| CN201130900Y (en) * | 2007-12-19 | 2008-10-08 | 张玉灿 | Permanent magnetism magnetic floating linkwork |
| US20100028176A1 (en) * | 2006-03-31 | 2010-02-04 | Werner Platt | Rotary pump with coaxial magnetic coupling |
| CN201611837U (en) * | 2010-01-04 | 2010-10-20 | 张隽超 | Automatic continuously variable transmission for cylindrical magnetic-induction type motor-driven transport device |
| CN102447376A (en) * | 2010-10-08 | 2012-05-09 | 东元总合科技（杭州）有限公司 | Magnetic gear and magnetic transmission device |
| CN102624198A (en) * | 2012-04-20 | 2012-08-01 | 林贵生 | Permanent magnetic coupling transmission, braking or load device with cooling and lubricating device |
| CN202931171U (en) * | 2012-11-27 | 2013-05-08 | 镇江市江南矿山机电设备有限公司 | Inter-axle permanent magnetic coupling mechanism |
-
2012
- 2012-11-27 CN CN2012104867172A patent/CN102931810A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100028176A1 (en) * | 2006-03-31 | 2010-02-04 | Werner Platt | Rotary pump with coaxial magnetic coupling |
| CN201130900Y (en) * | 2007-12-19 | 2008-10-08 | 张玉灿 | Permanent magnetism magnetic floating linkwork |
| CN201611837U (en) * | 2010-01-04 | 2010-10-20 | 张隽超 | Automatic continuously variable transmission for cylindrical magnetic-induction type motor-driven transport device |
| CN102447376A (en) * | 2010-10-08 | 2012-05-09 | 东元总合科技（杭州）有限公司 | Magnetic gear and magnetic transmission device |
| CN102624198A (en) * | 2012-04-20 | 2012-08-01 | 林贵生 | Permanent magnetic coupling transmission, braking or load device with cooling and lubricating device |
| CN202931171U (en) * | 2012-11-27 | 2013-05-08 | 镇江市江南矿山机电设备有限公司 | Inter-axle permanent magnetic coupling mechanism |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014082371A1 (en) * | 2012-11-27 | 2014-06-05 | 镇江市江南矿山机电设备有限公司 | Permanent magnet coupling mechanism between shafts |
| WO2015176559A1 (en) * | 2014-05-21 | 2015-11-26 | 江苏磁谷科技股份有限公司 | Permanent-magnet coupling self-alignment protective device |
| US10205373B2 (en) | 2014-05-21 | 2019-02-12 | Jiangsu Magnet Valley | Self-alignment protection device for permanent-magnet coupling |
| WO2016086518A1 (en) * | 2014-12-05 | 2016-06-09 | 刁俊起 | Permanent magnet speed governor having fixed magnetic gap |
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| C06 | Publication | ||
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| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 212009 Siping Road 10, hi tech Industrial Development Zone, Zhenjiang, Jiangsu, Zhenjiang Applicant after: Zhenjiang Jiangnan Mining Machinery and Electrical Equipment Co.,Ltd. Address before: 212009, No. four, No. 10 mountain road, Zhenjiang hi tech Industrial Development Zone, Jiangsu, Zhenjiang Applicant before: Zhenjiang Jiangnan Mining Machinery and Electrical Equipment Co.,Ltd. |
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| C53 | Correction of patent of invention or patent application | ||
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Address after: 212009 Siping Road 10, hi tech Industrial Development Zone, Zhenjiang, Jiangsu, Zhenjiang Applicant after: Jiangsu Ci Gu Science and Technology Co., Ltd. Address before: 212009 Siping Road 10, hi tech Industrial Development Zone, Zhenjiang, Jiangsu, Zhenjiang Applicant before: Zhenjiang Jiangnan Mining Machinery and Electrical Equipment Co.,Ltd. |
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| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: ZHENJIANG JIANGNAN ELECTROMECHANICAL MINING EQUIPMENT CO., LTD. TO: JIANGSU MAGNET VALLEY TECHNOLOGIES INC. |
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130213 |