JP2008185205A - Oldham's coupling with reduced fitting friction - Google Patents

Oldham's coupling with reduced fitting friction Download PDF

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JP2008185205A
JP2008185205A JP2007042894A JP2007042894A JP2008185205A JP 2008185205 A JP2008185205 A JP 2008185205A JP 2007042894 A JP2007042894 A JP 2007042894A JP 2007042894 A JP2007042894 A JP 2007042894A JP 2008185205 A JP2008185205 A JP 2008185205A
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fitting
oldham coupling
embedded
balls
coupling
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Kinzo Shinozuka
欣三 篠塚
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F16D3/02—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive adapted to specific functions
    • F16D3/04—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive adapted to specific functions specially adapted to allow radial displacement, e.g. Oldham couplings

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rotary Pumps (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide an Oldam's coupling with reduced fitting friction. <P>SOLUTION: In this Oldham's coupling 1, balls 12, 13, 14, 15, 16 are embedded into fitting projections 5, 6 so that the balls 12 to 16 are partially exposed from the fitting contact surfaces 9, 10, 11 of the fitting projections 5, 6 of the Oldham's coupling 1 and freely rotated, and fitting grooves 7, 8 to be fitted to the fitting projections 5, 6 are intersectingly formed at right angles in both surfaces of an intermediate torque disc 4. The fitting projections 5, 6 and fitting grooves 7, 8 are integrally formed by being fitted to each other by point contact through the balls 12 to 16. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は従来のオルダムカップリングのはめ合い摩擦を軽減する構造に関するものである。The present invention relates to a structure for reducing fitting friction of a conventional Oldham coupling.

オルダムカップリングに於ける従来のはめ合い構造には、大きなはめ合い摩擦を伴う欠点があり、はめ合い摩擦の軽減が要求されている。The conventional fitting structure in the Oldham coupling has a drawback with a large fitting friction, and a reduction of the fitting friction is required.

本発明はオルダムカップリングのはめ合い部に球を埋め込み、自在に回動する球を介した点接触はめ合いによりはめ合い摩擦を軽減する、又、はめ合い部に反発しあう磁石を非接触に対向させて相互に埋め込み、非接触反発はめ合いによりはめ合い摩擦を軽減する、更に、はめ合い部に自在に回動する球、及び、磁石を埋め込み、磁石間の非接触反発力と、自在に回動する球を介した点接触の両者により、はめ合い部のはめ合い摩擦を軽減する、これらの構造をオルダムカップリングに具備させようとするものである。The present invention embeds a sphere in the fitting part of the Oldham coupling, reduces the fitting friction by the point contact fitting through the freely rotating sphere, and makes the magnet repelling the fitting part non-contact. Embed each other to face each other, reduce fitting friction by non-contact repulsive fit, and embed a sphere and a magnet that freely rotate in the fitting part, and non-contact repulsive force between magnets, freely The Oldham coupling is intended to be provided with these structures that reduce the fitting friction of the fitting portion by both of the point contact through the rotating sphere.

上記の目的を達成する本発明の第一実施例は球の一部分がオルダムカップリングの継手ボスのはめ合い突起部のはめ合い接触面より露出して自在に回動するように球をはめ合い突起部に埋め込み、はめ合い突起部とはめ合うはめ合い溝が中間トルクディスクの両面側に直角に交叉するように配置されて設けられたオルダムカップリングである。The first embodiment of the present invention which achieves the above object is to fit the sphere so that a part of the sphere can be freely rotated by being exposed from the fitting contact surface of the fitting boss of the fitting boss of the Oldham coupling. This is an Oldham coupling provided in such a manner that fitting grooves that are embedded in the fitting portion and fitting fitting portions are arranged so as to cross at right angles to both sides of the intermediate torque disk.

第二実施例に於いては、磁石をオルダムカップリングの継手ボスのはめ合い突起部に埋め込み、はめ合い突起部とはめ合うはめ合い溝が中間トルクディスクの両面側に直角に交叉するように配置されて設けられたオルダムカップリングに於いて、はめ合い溝にも、はめ合い突起部の磁石と非接触に対向して反発するように磁石を埋め込む構造のオルダムカップリングである。In the second embodiment, the magnet is embedded in the fitting protrusion of the fitting boss of the Oldham coupling, and the fitting grooves fitting with the fitting protrusion are arranged so as to cross at right angles to both sides of the intermediate torque disk. In the Oldham coupling provided, the Oldham coupling has a structure in which a magnet is embedded in the fitting groove so as to be opposed to the magnet of the fitting projection so as to be opposed to the magnet.

第三実施例に於いては、球の一部分がオルダムカップリングの継手ボスのはめ合い突起部のはめ合い接触面より露出して自在に回動するように球をはめ合い突起部に埋め込み、更に磁石を継手ボスのはめ合い突起部に埋め込み、はめ合い突起部とはめ合うはめ合い溝が中間トルクディスクの両面側に直角に交叉するように配置されて設けられたオルダムカップリングに於いて、はめ合い溝にも、はめ合い突起部の磁石と非接触に対向して反発するように磁石を埋め込む構造のオルダムカップリングである。In the third embodiment, the ball is embedded in the fitting protrusion so that a part of the ball is exposed from the fitting contact surface of the fitting protrusion of the fitting boss of the Oldham coupling and freely rotates. In Oldham coupling, the magnet is embedded in the fitting boss of the joint boss, and the fitting grooves fitted to the fitting boss are arranged so as to cross at right angles to both sides of the intermediate torque disk. In the mating groove, the Oldham coupling has a structure in which a magnet is embedded so as to be repelled in a non-contact manner against the magnet of the fitting projection.

上記のように、本発明によれば、はめ合い摩擦を軽減されたオルダムカップリングはより広い分野の産業に於いて使用される等の利点がある。As described above, according to the present invention, the Oldham coupling with reduced fitting friction has advantages such as being used in a wider range of industries.

以下に、本発明の実施例を図面に基づき詳細に説明する。
図１は本発明の第一実施例に於けるオルダムカップリングに関するものである。
図２は本発明の第二実施例に於けるオルダムカップリングに関するものである。Embodiments of the present invention will be described below in detail with reference to the drawings.
FIG. 1 relates to an Oldham coupling in the first embodiment of the present invention.
FIG. 2 relates to the Oldham coupling in the second embodiment of the present invention.

図１に示すように、球１２、１３、１４、１５、１６の一部分がオルダムカップリング１の継手ボス２、３のはめ合い突起部５、６のはめ合い接触面９、１０、１１より露出して自在に回動するように球１２、１３、１４、１５、１６をはめ合い突起部５、６に埋め込み、はめ合い突起部５、６とはめ合うはめ合い溝７、８が中間トルクディスク４の両面側に直角に交叉するように配置されて設けられたオルダムカップリング１に於いては、はめ合い突起部５、６とはめ合い溝７、８のはめ合いは、球１２、１３、１４、１５、１６を介した点接触はめ合いとなる。この時に生じる点接触摩擦は、球１２、１３、１４、１５、１６、の自在な回動により軽減され、はめ合い摩擦は軽減する。As shown in FIG. 1, a part of the balls 12, 13, 14, 15, 16 is exposed from the fitting contact surfaces 9, 10, 11 of the fitting protrusions 5, 6 of the joint bosses 2, 3 of the Oldham coupling 1. The balls 12, 13, 14, 15, 16 are embedded in the fitting projections 5, 6 so as to freely rotate, and the fitting grooves 7, 8 fitting with the fitting projections 5, 6 are intermediate torque disks. In the Oldham coupling 1 arranged so as to cross at right angles on both sides of the fitting 4, the fitting protrusions 5, 6 and the fitting grooves 7, 8 are fitted to the balls 12, 13, The point contact via 14, 15, 16 is a fit. The point contact friction generated at this time is reduced by the free rotation of the balls 12, 13, 14, 15, 16, and the fitting friction is reduced.

図２に示すように、磁石１７、１８、２２をオルダムカップリング１の継手ボス２、３のはめ合い突起部５、６に埋め込み、はめ合い突起部５、６とはめ合うはめ合い溝７、８が中間トルクディスク４の両面側に直角に交叉するように配置されて設けられたオルダムカップリング１に於いて、はめ合い溝７、８にも、はめ合い突起部５、６の磁石１７、１８、２２と非接触に対向して反発するように磁石１９、２０、２１を埋め込む構造のオルダムカップリング１に於いては、はめ合い突起部５、６とはめ合い溝７、８のはめ合いは、対向する磁石１７、１８、１９、２０、２１、２２間の反発による非接触はめ合いとなるから、はめ合い摩擦は生じないか、生じても最小値となる。As shown in FIG. 2, the magnets 17, 18, 22 are embedded in the fitting protrusions 5, 6 of the joint bosses 2, 3 of the Oldham coupling 1, and the fitting grooves 7, fitting with the fitting protrusions 5, 6, In the Oldham coupling 1 provided so that 8 crosses the both sides of the intermediate torque disk 4 at right angles, the magnets 17 of the fitting protrusions 5 and 6 are also provided in the fitting grooves 7 and 8. In the Oldham coupling 1 in which the magnets 19, 20, 21 are embedded so as to be repelled in opposition to the non-contact surfaces 18, 22, the fitting protrusions 5, 6 are fitted to the fitting grooves 7, 8. Is a non-contact fit due to the repulsion between the opposing magnets 17, 18, 19, 20, 21, and 22, and therefore, there is no fitting friction or a minimum value even if it occurs.

球１２、１３、１４、１５、１６の一部分がオルダムカップリング１の継手ボス２、３のはめ合い突起部５、６のはめ合い接触面９、１０、１１より露出して自在に回動するように球１２、１３、１４、１５、１６をはめ合い突起部５、６に埋め込み、更に磁石１７、１８、２２を継手ボス２、３のはめ合い突起部５、６に埋め込み、はめ合い突起部５、６とはめ合うはめ合い溝７、８が中間トルクディスク４の両面側に直角に交叉するように配置されて設けられたオルダムカップリング１に於いて、はめ合い溝７、８にも、はめ合い突起部５、６の磁石１７、１８、２２と非接触に対向して反発するように磁石１９、２０、２１を埋め込む構造のオルダムカップリング１に於いては、はめ合い突起部５、６とはめ合い溝７、８のはめ合いは、球１２、１３、１４、１５、１６を介した点接触はめ合いとなる。この時に生じる点接触摩擦は、球１２、１３、１４、１５、１６、の自在な回動により軽減されると共に、磁石１７、１８、１９、２０、２１、２２間に生じる非接触反発力により、はめ合い摩擦は更に軽減する。Part of the balls 12, 13, 14, 15, 16 is exposed through the fitting contact surfaces 9, 10, 11 of the fitting protrusions 5, 6 of the joint bosses 2, 3 of the Oldham coupling 1 and freely rotates. The balls 12, 13, 14, 15, 16 are embedded in the fitting protrusions 5 and 6, and the magnets 17, 18, and 22 are embedded in the fitting protrusions 5 and 6 of the joint bosses 2 and 3, and the fitting protrusions. In the Oldham coupling 1 in which the fitting grooves 7 and 8 fitted to the portions 5 and 6 are arranged so as to cross at right angles to both sides of the intermediate torque disk 4, the fitting grooves 7 and 8 are also In the Oldham coupling 1 in which the magnets 19, 20, 21 are embedded so as to repel the magnets 17, 18, 22 of the fitting projections 5, 6 in a non-contact manner, the fitting projection 5 , 6 and fitting grooves 7, 8 are fitted The mating contact point via a ball 12,13,14,15,16. The point contact friction generated at this time is reduced by the free rotation of the balls 12, 13, 14, 15, 16, and the non-contact repulsive force generated between the magnets 17, 18, 19, 20, 21, 22. Fitting friction is further reduced.

以上に本発明の実施例を説明したが、本発明の範囲はこれに限定されない。オルダムカップリンのはめ合いの形状、構造、構成部材及び材質等の全ては使用の状態に応じて適宜に選択できるので、本発明の実施例に限定されるものではなく、任意の選定が可能である。Although the embodiments of the present invention have been described above, the scope of the present invention is not limited thereto. All of the fitting shapes, structures, components, materials, etc. of Oldham coupling can be selected as appropriate according to the state of use, so it is not limited to the embodiment of the present invention and can be arbitrarily selected. is there.

本発明は軸回転トルクの伝達が必要な全ての機器の連結に対応できる。The present invention can cope with the connection of all devices that require transmission of shaft rotational torque.

本発明の第一実施例に於ける斜視図詳細図である。It is a detailed perspective view in the first embodiment of the present invention. 本発明の第二実施例に於ける斜視図詳細図である。It is a perspective view detail figure in the 2nd Example of this invention.

符号の説明Explanation of symbols

１ オルダムカップリング
２、３ 継手ボス
４ 中間トルクディスク
５、６ はめ合い突起部
７、８ はめ合い溝
９、１０、１１ はめ合い接触面
１２、１３、１４、１５、１６ 球
１７、１８、１９、２０、２１、２２ 磁石DESCRIPTION OF SYMBOLS 1 Oldham coupling 2, 3 Joint boss | hub 4 Intermediate torque disk 5, 6 Fitting protrusion part 7, 8 Fitting groove 9, 10, 11 Fitting contact surface 12, 13, 14, 15, 16 Balls 17, 18, 19 , 20, 21, 22 Magnet

Claims (3)

球１２、１３、１４、１５、１６の一部分がオルダムカップリング１の継手ボス２、３のはめ合い突起部５、６のはめ合い接触面９、１０、１１より露出して自在に回動するように球１２、１３、１４、１５、１６をはめ合い突起部５、６に埋め込み、はめ合い突起部５、６とはめ合うはめ合い溝７、８が中間トルクディスク４の両面側に直角に交叉するように配置されて設けられたオルダムカップリング１Part of the balls 12, 13, 14, 15, 16 is exposed through the fitting contact surfaces 9, 10, 11 of the fitting protrusions 5, 6 of the joint bosses 2, 3 of the Oldham coupling 1 and freely rotates. The balls 12, 13, 14, 15, 16 are embedded in the fitting protrusions 5, 6, and the fitting grooves 7, 8 that fit with the fitting protrusions 5, 6 are perpendicular to both sides of the intermediate torque disk 4. Oldham coupling 1 arranged so as to cross 磁石１７、１８、２２をオルダムカップリング１の継手ボス２、３のはめ合い突起部５、６に埋め込み、はめ合い突起部５、６とはめ合うはめ合い溝７、８が中間トルクディスク４の両面側に直角に交叉するように配置されて設けられたオルダムカップリング１に於いて、はめ合い溝７、８にも、はめ合い突起部５、６の磁石１７、１８、２２と非接触に対向して反発するように磁石１９、２０、２１を埋め込む構造のオルダムカップリング１The magnets 17, 18, 22 are embedded in the fitting protrusions 5, 6 of the joint bosses 2, 3 of the Oldham coupling 1, and the fitting grooves 7, 8 fitting with the fitting protrusions 5, 6 are formed in the intermediate torque disk 4. In the Oldham coupling 1 disposed so as to cross at right angles on both sides, the fitting grooves 7 and 8 are also not in contact with the magnets 17, 18 and 22 of the fitting protrusions 5 and 6. Oldham coupling 1 in which magnets 19, 20, 21 are embedded to repel each other 球１２、１３、１４、１５、１６の一部分がオルダムカップリング１の継手ボス２、３のはめ合い突起部５、６のはめ合い接触面９、１０、１１より露出して自在に回動するように球１２、１３、１４、１５、１６をはめ合い突起部５、６に埋め込み、更に磁石１７、１８、２２を継手ボス２、３のはめ合い突起部５、６に埋め込み、はめ合い突起部５、６とはめ合うはめ合い溝７、８が中間トルクディスク４の両面側に直角に交叉するように配置されて設けられたオルダムカップリング１に於いて、はめ合い溝７、８にも、はめ合い突起部５、６の磁石１７、１８、２２と非接触に対向して反発するように磁石１９、２０、２１を埋め込む構造のオルダムカップリング１Part of the balls 12, 13, 14, 15, 16 is exposed through the fitting contact surfaces 9, 10, 11 of the fitting protrusions 5, 6 of the joint bosses 2, 3 of the Oldham coupling 1 and freely rotates. The balls 12, 13, 14, 15, 16 are embedded in the fitting protrusions 5 and 6, and the magnets 17, 18, and 22 are embedded in the fitting protrusions 5 and 6 of the joint bosses 2 and 3, and the fitting protrusions. In the Oldham coupling 1 in which the fitting grooves 7 and 8 fitted to the portions 5 and 6 are arranged so as to cross at right angles to both sides of the intermediate torque disk 4, the fitting grooves 7 and 8 are also The Oldham coupling 1 having a structure in which the magnets 19, 20, and 21 are embedded so as to repel the magnets 17, 18, and 22 of the fitting protrusions 5 and 6 in a non-contact manner.
JP2007042894A 2007-01-26 2007-01-26 Oldham's coupling with reduced fitting friction Pending JP2008185205A (en)

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Cited By (5)

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JP2013204724A (en) * 2012-03-28 2013-10-07 Fanuc Ltd Oldham coupling, process for manufacturing the same, and process for coupling shaft by the oldham coupling
CN109808107A (en) * 2019-04-04 2019-05-28 青岛申通机械有限公司 A kind of rubber tire mold with detachable character matrix
WO2021095653A1 (en) * 2019-11-15 2021-05-20 株式会社デンソー Rotary actuator
CN113389750A (en) * 2021-07-29 2021-09-14 深圳飞磁科技有限公司 High-speed contactless magnetic suspension coupling for suspension blower

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20100129085A (en) * 2009-05-29 2010-12-08 삼성전자주식회사 Image forming apparatus and power transmission unit thereof
KR101667927B1 (en) * 2009-05-29 2016-10-20 삼성전자 주식회사 Image forming apparatus and power transmission unit thereof
JP2013204724A (en) * 2012-03-28 2013-10-07 Fanuc Ltd Oldham coupling, process for manufacturing the same, and process for coupling shaft by the oldham coupling
CN103362967A (en) * 2012-03-28 2013-10-23 发那科株式会社 Oldham coupling and manufacturing process thereof, coupling process and rotary electric motor
US8736120B2 (en) 2012-03-28 2014-05-27 Fanuc Corporation Oldham coupling, manufacturing process thereof, coupling process of shafts by oldham coupling and electric motor including oldham coupling
CN109808107A (en) * 2019-04-04 2019-05-28 青岛申通机械有限公司 A kind of rubber tire mold with detachable character matrix
CN109808107B (en) * 2019-04-04 2023-08-29 青岛申通机械有限公司 Rubber tyre mould with detachable matrix
WO2021095653A1 (en) * 2019-11-15 2021-05-20 株式会社デンソー Rotary actuator
JP2021080957A (en) * 2019-11-15 2021-05-27 株式会社デンソー Rotary actuator
JP7156253B2 (en) 2019-11-15 2022-10-19 株式会社デンソー rotary actuator
CN113389750A (en) * 2021-07-29 2021-09-14 深圳飞磁科技有限公司 High-speed contactless magnetic suspension coupling for suspension blower

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