WO2014027383A1 - リジッドカップリング - Google Patents
リジッドカップリング Download PDFInfo
- Publication number
- WO2014027383A1 WO2014027383A1 PCT/JP2012/005192 JP2012005192W WO2014027383A1 WO 2014027383 A1 WO2014027383 A1 WO 2014027383A1 JP 2012005192 W JP2012005192 W JP 2012005192W WO 2014027383 A1 WO2014027383 A1 WO 2014027383A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- coupling
- peripheral surface
- inner peripheral
- slit
- shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
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Classifications
-
- 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
- F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
- F16D1/06—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end
- F16D1/08—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end with clamping hub; with hub and longitudinal key
- F16D1/0852—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end with clamping hub; with hub and longitudinal key with radial clamping between the mating surfaces of the hub and shaft
- F16D1/0864—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end with clamping hub; with hub and longitudinal key with radial clamping between the mating surfaces of the hub and shaft due to tangential loading of the hub, e.g. a split hub
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
- Y10T29/49947—Assembling or joining by applying separate fastener
- Y10T29/49959—Nonresilient fastener
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T403/00—Joints and connections
- Y10T403/53—Split end with laterally movable opposed portions
- Y10T403/535—Split end with laterally movable opposed portions with separate force-applying means
Definitions
- the present invention relates to a slit type rigid coupling used to connect two shafts coaxially. More specifically, the present invention relates to a slit-type rigid coupling that can be fastened and fixed with a fastening bolt without tilting to a coupling portion with a slit.
- a general slit-type rigid coupling includes a cylindrical coupling body, a circular shaft hole having a constant inner diameter extending through the center, And a fastening bolt.
- a first slit extending in the circumferential direction is formed at an intermediate position of the coupling body.
- a second slit extending in the coupling axial direction is formed from one end of the coupling body to the first slit.
- Such a rigid coupling is used, for example, when the motor output shaft is coaxially connected to the input shaft of a reduction gear or the like.
- the shaft portion of the sun gear of the planetary gear device is press-fitted and fixed from one opening end of the coupling, and the motor output shaft is provided from the other opening end having a slit in the coupling. Is inserted and fixed by a fastening bolt (not shown).
- JP 2008-95937 A Japanese Patent Laid-Open No. 2005-9614 JP 2000-179629 A
- An object of the present invention is to propose a rigid coupling capable of fastening and fixing a shaft in a state where there is no inclination (falling) or a state where inclination (falling) is suppressed as much as possible.
- the rigid coupling of the present invention is: A cylindrical coupling body, A shaft hole having a circular cross section formed in the coupling body; A first slit that divides a part of the coupling body in the direction of the coupling central axis; A second slit that divides a part of the coupling body in the coupling circumferential direction; A fastener that tightens a portion of the coupling body that is divided by the first slit and the second slit;
- the first slit is a slit extending over a predetermined angular range along a circumferential direction of the coupling body
- the second slit is a slit extending in the axial direction from one end of the coupling body to the first slit,
- the portion where the second slit is formed in the coupling body is a tightening portion including a tightening shaft hole portion whose inner diameter can be reduced when the fastener is fastened.
- In the inner peripheral surface of the shaft hole at least the inner peripheral
- a shaft hole having the same inner diameter is formed in the coupling body, and the inner peripheral surface portion of the shaft hole other than the inner peripheral surface portion of the tightening portion is cut out to make the whole as a relief surface.
- the shaft hole may be formed in the coupling body so that the inner diameter of the other shaft hole portion is about 1 mm larger than the inner diameter of the shaft hole portion of the tightening portion.
- FIG. 1A is an explanatory view showing the tilting of the shaft that occurs in the slit-type rigid coupling.
- One shaft 5 to be connected is inserted into the shaft hole 3 of the coupling body 2 in the rigid coupling 1.
- the shaft 5 is inserted from the side of the end surface 2a of the tightening portion 4 with the slit in the coupling body 2. With the shaft 5 inserted, the tightening portion 4 is tightened with a fastening bolt (not shown).
- the inner peripheral surface portion (the inner peripheral surface in FIG. 1B) is applied with contact pressure from the shaft hole inner peripheral surface side with respect to the shaft inserted into the shaft hole.
- a radial outward relief surface is formed on the surface portion 3c). Due to the relief surface, it is possible to avoid the generation of contact pressure between the shaft hole inner peripheral surface portion and the shaft. Alternatively, such contact pressure can be greatly reduced. As a result, the inclination (falling) of the shaft fastened and fixed to the coupling body can be prevented or suppressed, and the shaft can be fastened and fixed coaxially with the coupling body with high accuracy.
- FIG. 3 is an enlarged partial sectional view showing an inner peripheral surface of a shaft hole of the rigid coupling of FIG. 2. It is a graph which shows an example of the analysis result of the inclination of the axis
- FIG. 2 is a perspective view showing a rigid coupling according to an embodiment of the present invention.
- FIG. 3A is a perspective view in a state cut along a plane including the central axis
- FIG. 3B is an enlarged partial cross-sectional view showing the inner peripheral surface of the shaft hole of the rigid coupling.
- the rigid coupling 11 includes a cylindrical coupling body 12 and a fastening bolt 13.
- One shaft 15 to be connected is inserted into the shaft hole 14 opened in one end surface 12a of the coupling body 12, and is fastened and fixed coaxially to the coupling body 12 by the fastening bolt 13. .
- the coupling body 12 has a large diameter cylindrical portion 21, a smaller diameter cylindrical portion 22, and a smaller diameter cylindrical portion 23 coaxially from one end surface 12a to the other end surface 12b. Is formed.
- a first slit 24 having a constant width extending in the circumferential direction over an angular range of about 180 degrees is formed at a predetermined distance from the end surface 12a in the direction of the central axis 11a. Yes.
- the first slit 24 divides the cylindrical portion 21 in the direction of the central axis 11 a in the portion where the first slit 24 is formed.
- a cylindrical portion from the end surface 12 a to the first slit 24 is a portion that functions as a fastening portion 25 for fastening and fixing the shaft 15 by the fastening bolt 13.
- the fastening portion 25 is formed with a second slit 26 extending linearly in the direction of the central axis 11a from the end surface 12a to the first slit 24.
- the fastening portion 24 is divided in the circumferential direction by the second slit 26.
- a bolt through hole 27 is formed in one portion facing and sandwiching the second slit 26, and a bolt fastening hole (not shown) having a female screw portion formed on the inner peripheral surface is formed in the other portion. ) Is formed.
- the shaft hole 14 opened in the end surface 12 a of the coupling body 12 extends through the cylindrical portion 21 to a middle position of the cylindrical portion 22.
- the shaft hole 16 opened to the other end surface 12b is a circular shaft hole having a smaller diameter than the shaft hole 14, and extends from the end surface 12b to a midway position in the direction of the central axis 11a in the cylindrical portion 23.
- the shaft hole 14 and the shaft hole 16 are formed coaxially and are connected via a circular communication hole 29 having a smaller diameter than these.
- the shaft hole 14 on the side of the end face 12 a is composed of a tightening shaft hole portion 31 formed inside the tightening portion 25 and the other shaft hole portion 32.
- the fastening shaft hole portion 31 is a portion from the end surface 12a to the slit end surface 24a on the end surface 12a side of the first slit 24.
- the inner diameter d (32) of the circular inner peripheral surface portion 32a of the other shaft hole portion 32 is slightly larger than the inner diameter d (31) of the circular inner peripheral surface portion 31a of the tightening shaft hole portion 31.
- the circular inner peripheral surface portion 32a is a relief surface that slightly escapes outward in the radial direction. Therefore, a slight arc-shaped step 33 is provided between the circular inner peripheral surface portion 32a of the shaft hole portion 31 for tightening and the circular inner peripheral surface portion 32a of the shaft hole portion 32 continuous thereto. .
- FIG. 4 is a graph showing an example of the analysis result of the amount of collapse of the shaft 15 in the rigid coupling 11 having the above configuration.
- the coupling inner diameter that is, the inner diameter d (31) of the tightening portion 25 in the shaft hole 14 is 35.016 mm
- the inner diameter d (32) of the other shaft hole portion is 36.016 mm.
- the material constants of the rigid coupling 11 and the shaft 15 are Young's modulus of 206 GPa and Poisson's ratio of 0.3.
- the amount of displacement in the axial direction was analyzed.
- the square dot in the graph is the case where the inner diameter of the shaft hole 14 is the same as 35.016 mm in the direction of the central axis 11a, and the diamond-shaped dot is the case of the rigid coupling 11 of this example.
- the rigid coupling 11 of this example is used, the inclination (falling) of the shaft 15 is significantly suppressed.
- the inner diameter d (32) of the other shaft hole portion is larger than the inner diameter d (31) of the shaft hole portion of the tightening portion 25 as a whole.
- the adjacent inner peripheral surface portion 3c surrounded by a thick line in FIG. 1B may be used as a relief surface. That is, the connecting portion that is continuous with the inner peripheral surface portion of the tightening portion 25 and is located between the first slits 24 may be scraped by a predetermined length in the direction of the central axis 11a to form a relief surface.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Connection Of Plates (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
- Clamps And Clips (AREA)
Abstract
Description
筒状のカップリング本体と、
前記カップリング本体に形成されている円形断面の軸穴と、
前記カップリング本体の一部を、カップリング中心軸線の方向に分断している第1スリットと、
前記カップリング本体の一部を、カップリング円周方向に分断している第2スリットと、
前記カップリング本体における前記第1スリットおよび前記第2スリットによって分断されている部分を締め付ける締結具とを有し、
前記第1スリットは、前記カップリング本体の円周方向に沿って所定の角度範囲に亘って延びるスリットであり、
前記第2スリットは、前記カップリング本体における一方の端から前記第1スリットに至る軸線方向に延びるスリットであり、
前記カップリング本体における前記第2スリットが形成されている部分は、前記締結具を締結すると内径が縮小可能な締め付け用軸穴部分を備えた締め付け部であり、
前記軸穴の内周面において、少なくとも、前記締め付け部の内周面部分に繋がっている内周面部分には、前記締め付け部の内周面部分に対して、半径方向の外方に逃げた逃がし面が形成されている。
Claims (3)
- 筒状のカップリング本体(12)と、
前記カップリング本体(12)に形成されている円形断面の軸穴(14)と、
前記カップリング本体(12)の一部を、カップリング中心軸線の方向に分断している第1スリット(24)と、
前記カップリング本体(12)の一部を、カップリング円周方向に分断している第2スリット(26)と、
前記カップリング本体(12)における前記第1スリット(24)および前記第2スリット(26)によって分断されている部分を締め付ける締結具(13)とを有し、
前記第1スリット(24)は、前記カップリング本体(12)の円周方向に沿って所定の角度範囲に亘って延びるスリットであり、
前記第2スリット(26)は、前記カップリング本体(12)における一方の端から前記第1スリット(24)に至る前記カップリング中心軸線の方向に延びるスリットであり、
前記カップリング本体(12)における前記第2スリット(26)が形成されている部分は、前記締結具(13)を締結すると内径が縮小可能な内周面部分(31a)を備えた締め付け部(25)であり、
前記軸穴(14)の内周面において、少なくとも、前記締め付け部(25)の内周面部分(31a)に繋がっている内周面部分には、前記締め付け部(25)の内周面部分(31a)に対して、半径方向の外方に逃げた逃がし面が形成されているリジッドカップリング(11)。 - 前記軸穴の内周面における前記締め付け部(25)の内周面部分(31a)以外の内周面部分(32a)の全体が、前記締め付け部(25)の内周面部分(31a)に対して半径方向の外方に逃げた逃がし面となっている請求項1に記載のリジッドカップリング(11)。
- 請求項1または2に記載のリジッドカップリング(11)を用いた軸連結方法であって、
前記カップリング本体(12)の前記カップリング中心軸線の方向における前記第1スリット(24)の形成位置、前記カップリング本体(12)の前記カップリング中心軸線の方向における前記締結具(13)による締め付け位置(27)、および、前記逃がし面と前記締め付け部(25)の内周面部分(31a)の間の内径差のうちの少なくとも1つを調整して、前記リジッドカップリング(11)に対する前記軸穴(14)に締結固定した軸(15)の傾きを所定値以下に抑制するリジッドカップリング(11)を用いた軸連結方法。
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE112012006814.9T DE112012006814T5 (de) | 2012-08-17 | 2012-08-17 | Steife Kupplung |
| PCT/JP2012/005192 WO2014027383A1 (ja) | 2012-08-17 | 2012-08-17 | リジッドカップリング |
| CN201280075347.1A CN104583624B (zh) | 2012-08-17 | 2012-08-17 | 刚性联轴器 |
| JP2014530398A JP6143305B2 (ja) | 2012-08-17 | 2012-08-17 | リジッドカップリングおよびリジッドカップリングを用いた軸連結方法 |
| US14/412,859 US9222519B2 (en) | 2012-08-17 | 2012-08-17 | Rigid coupling |
| KR1020157006199A KR101991386B1 (ko) | 2012-08-17 | 2012-08-17 | 리지드 커플링 |
| TW101136355A TWI540269B (zh) | 2012-08-17 | 2012-10-02 | Rigid coupling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2012/005192 WO2014027383A1 (ja) | 2012-08-17 | 2012-08-17 | リジッドカップリング |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2014027383A1 true WO2014027383A1 (ja) | 2014-02-20 |
Family
ID=50685454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2012/005192 Ceased WO2014027383A1 (ja) | 2012-08-17 | 2012-08-17 | リジッドカップリング |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US9222519B2 (ja) |
| JP (1) | JP6143305B2 (ja) |
| KR (1) | KR101991386B1 (ja) |
| CN (1) | CN104583624B (ja) |
| DE (1) | DE112012006814T5 (ja) |
| TW (1) | TWI540269B (ja) |
| WO (1) | WO2014027383A1 (ja) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20180064512A (ko) | 2015-12-03 | 2018-06-14 | 가부시키가이샤 하모닉 드라이브 시스템즈 | 축이음 |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014027383A1 (ja) * | 2012-08-17 | 2014-02-20 | 株式会社ハーモニック・ドライブ・システムズ | リジッドカップリング |
| CN107013599A (zh) * | 2016-01-27 | 2017-08-04 | 天津明源机械设备有限公司 | 一种新型膜片式联轴器 |
| DE102019117200A1 (de) * | 2018-07-04 | 2020-01-09 | Fanuc Corporation | Horizontal-gelenkroboter |
| USD1022683S1 (en) | 2021-03-15 | 2024-04-16 | Designatronics, Inc. | Coupling device |
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| JPH09303412A (ja) * | 1996-05-10 | 1997-11-25 | Tsubakimoto Chain Co | 回転体固定具 |
| DE10315685A1 (de) * | 2002-06-22 | 2004-01-15 | Tuchenhagen Gmbh | Klemmverbindung für eine fliegend auf einer Motorwelle gelagerte Pumpenwelle |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3127202A (en) * | 1964-03-31 | Prestressed shaft engaging unit | ||
| US3109663A (en) * | 1962-03-27 | 1963-11-05 | American Carbide Company | Die assemblies |
| US3281170A (en) * | 1963-10-29 | 1966-10-25 | Kaplan Joseph | Shaft clamp |
| US3236572A (en) * | 1963-12-19 | 1966-02-22 | Sr Philip White | Split collar for paper cores |
| US3473202A (en) * | 1967-09-29 | 1969-10-21 | Kolock Products Co | Prestressed shaft engaging unit |
| US5006007A (en) * | 1989-06-16 | 1991-04-09 | Reliance Electric Industrial Company | Vibration-proof coupling |
| USD342891S (en) * | 1991-03-19 | 1994-01-04 | Marui Co., Ltd. | Bicycle's seat pillar clamp |
| US5851084A (en) | 1995-12-13 | 1998-12-22 | Tsubakimoto Chain Co. | Rotor fixture |
| JP3419698B2 (ja) | 1998-12-21 | 2003-06-23 | 株式会社ハーモニック・ドライブ・システムズ | 小バックラッシ遊星歯車装置 |
| DE19907181B4 (de) * | 1999-02-19 | 2004-02-19 | Neugart Gmbh & Co. | Verbindung einer geschlitzten Hohlwelle, Hohlachse oder Hülse mit einem eingreifenden Gegenstück |
| JP4353735B2 (ja) | 2003-06-20 | 2009-10-28 | 株式会社ハーモニック・ドライブ・システムズ | 遊星歯車装置 |
| US7438496B2 (en) * | 2004-01-30 | 2008-10-21 | Simon Garry Moore | Auto locked mechanism |
| JP2005273790A (ja) * | 2004-03-25 | 2005-10-06 | Miki Pulley Co Ltd | 撓み軸継手 |
| JP2008095937A (ja) | 2006-10-16 | 2008-04-24 | Kinzo Shinozuka | 多軸穴継手システム |
| WO2014027383A1 (ja) * | 2012-08-17 | 2014-02-20 | 株式会社ハーモニック・ドライブ・システムズ | リジッドカップリング |
-
2012
- 2012-08-17 WO PCT/JP2012/005192 patent/WO2014027383A1/ja not_active Ceased
- 2012-08-17 US US14/412,859 patent/US9222519B2/en active Active
- 2012-08-17 KR KR1020157006199A patent/KR101991386B1/ko active Active
- 2012-08-17 JP JP2014530398A patent/JP6143305B2/ja active Active
- 2012-08-17 CN CN201280075347.1A patent/CN104583624B/zh active Active
- 2012-08-17 DE DE112012006814.9T patent/DE112012006814T5/de active Pending
- 2012-10-02 TW TW101136355A patent/TWI540269B/zh active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09303412A (ja) * | 1996-05-10 | 1997-11-25 | Tsubakimoto Chain Co | 回転体固定具 |
| DE10315685A1 (de) * | 2002-06-22 | 2004-01-15 | Tuchenhagen Gmbh | Klemmverbindung für eine fliegend auf einer Motorwelle gelagerte Pumpenwelle |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20180064512A (ko) | 2015-12-03 | 2018-06-14 | 가부시키가이샤 하모닉 드라이브 시스템즈 | 축이음 |
| JPWO2017094171A1 (ja) * | 2015-12-03 | 2018-08-23 | 株式会社ハーモニック・ドライブ・システムズ | 軸継手 |
Also Published As
| Publication number | Publication date |
|---|---|
| DE112012006814T5 (de) | 2015-05-21 |
| US9222519B2 (en) | 2015-12-29 |
| US20150132047A1 (en) | 2015-05-14 |
| JP6143305B2 (ja) | 2017-06-07 |
| CN104583624B (zh) | 2017-02-15 |
| JPWO2014027383A1 (ja) | 2016-07-25 |
| CN104583624A (zh) | 2015-04-29 |
| KR20150043398A (ko) | 2015-04-22 |
| TWI540269B (zh) | 2016-07-01 |
| TW201408898A (zh) | 2014-03-01 |
| KR101991386B1 (ko) | 2019-06-20 |
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