EP2496854A1 - Drehmomentkupplung - Google Patents
DrehmomentkupplungInfo
- Publication number
- EP2496854A1 EP2496854A1 EP10773311A EP10773311A EP2496854A1 EP 2496854 A1 EP2496854 A1 EP 2496854A1 EP 10773311 A EP10773311 A EP 10773311A EP 10773311 A EP10773311 A EP 10773311A EP 2496854 A1 EP2496854 A1 EP 2496854A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- levers
- torque coupling
- shaft
- hollow shaft
- lever
- 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.)
- Withdrawn
Links
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
- F16D7/00—Slip couplings, e.g. slipping on overload, for absorbing shock
- F16D7/04—Slip couplings, e.g. slipping on overload, for absorbing shock of the ratchet type
- F16D7/048—Slip couplings, e.g. slipping on overload, for absorbing shock of the ratchet type with parts moving radially between engagement and disengagement
Definitions
- the present invention relates to a torque coupling as known, inter alia, from DE 199 29 833 A.
- the torque clutches are subject to high wear during operation.
- the running surfaces of the ring gear and the clamped elements engaging in the tread wear off.
- One object is a low wear torque coupling. This object is achieved by the torque coupling according to the invention.
- the torque coupling according to the invention has a shaft, a hollow shaft and a plurality of levers.
- the bearings of the levers are rotatably connected to the shaft and the levers are spring loaded pressed against the hollow shaft.
- the levers are bent from a steel strip.
- the bent steel strip proves in long-term tests as a low-wear lever, which are made of a full piece of the same material.
- One possible explanation is seen in a lower surface roughness due to the different manufacturing processes.
- the comparatively lower inertia could also lead to lower loads during dynamic load changes.
- the levers can be bent from spring steel.
- An embodiment provides that a contact region of the hollow shaft is lined with the levers by a bent steel strip.
- levers have a bent to a circular segment bearing head, which is movably inserted in a bearing receptacle made of plastic.
- the plastic may be fiber-reinforced, for example.
- FIG. 1 is a plan view of a torque coupling
- FIG. Fig. 2 is an exploded view of the torque coupling.
- Fig. 1 shows an exemplary embodiment of a torque coupling 10
- Fig. 2 is an exploded view of the torque coupling 10.
- the torque coupling 10 includes a shaft 11 and a hollow shaft 12.
- the shaft 11 may have a star-shaped cross-section.
- a gear 13 may be fixed or an outer periphery of the hollow shaft 12 may be formed as a gear 13.
- An inner side 14 of the hollow shaft 12 is profiled. The profile may for example be formed by a plurality of projections 15 which project in the radial direction to the shaft 11 out.
- the hub 16 On the shaft 11 is seated a hub 16.
- the hub 16 carries a plurality of levers 17 which are rotatably suspended from bearings 18 of the hub 16. Springs 19 deflect the levers 17 in the axial direction against the inner side 14 of the hollow shaft 12.
- the torque transmission is limited by the spring strength of the springs 19 and the design of the projections 15. If an applied torque exceeds a threshold value, the levers 17 are pressed by the projections 15 against the spring force of the springs 19 to the shaft 12 and the shaft 11 rotates relative to the hollow shaft 12. During the free-wheeling of the torque clutch 10 rub the outer surfaces 20 of the lever 17th on the inside 14 of the hollow shaft 12 along. The resulting abrasion limits the life of the torque coupling 10.
- the lever 17 are made of a piece of spring steel strip. With the levers 17 bent from steel strip, the abrasion could be reduced.
- the inside 14 of the hollow shaft 12 is preferably with a umgefomten sheet 21 lined.
- the lined inside 14 is equal to the above levers 17 as wear.
- the bearings 18 for the lever 17 are preferably formed of plastic.
- the bearing head 22 of the lever 17 is bent to a circular segment-like cross-section.
- the bearing receptacle 23 made of plastic also has a circular segment-like cross section, in the bearing head 22 is used.
- a far reaching reduction of friction could thereby be achieved that wear of the plastic bearing fails less than a suspension by means of a metal pin.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sliding-Contact Bearings (AREA)
- Mechanical Operated Clutches (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009046475A DE102009046475A1 (de) | 2009-11-06 | 2009-11-06 | Drehmomentkupplung |
PCT/EP2010/066612 WO2011054807A1 (de) | 2009-11-06 | 2010-11-02 | Drehmomentkupplung |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2496854A1 true EP2496854A1 (de) | 2012-09-12 |
Family
ID=43502988
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10773311A Withdrawn EP2496854A1 (de) | 2009-11-06 | 2010-11-02 | Drehmomentkupplung |
Country Status (4)
Country | Link |
---|---|
US (1) | US9879734B2 (de) |
EP (1) | EP2496854A1 (de) |
DE (1) | DE102009046475A1 (de) |
WO (1) | WO2011054807A1 (de) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012209874A1 (de) * | 2012-06-13 | 2013-12-19 | Robert Bosch Gmbh | Getriebevorrichtung |
CN102840035A (zh) * | 2012-09-22 | 2012-12-26 | 中国船舶重工集团公司第七�三研究所 | 新型油门执行器 |
EP2799733A1 (de) * | 2013-04-30 | 2014-11-05 | HILTI Aktiengesellschaft | Werkzeugmaschine |
JP6114681B2 (ja) * | 2013-11-21 | 2017-04-12 | 三木プーリ株式会社 | トルクリミタ |
EP3144109A1 (de) * | 2015-09-21 | 2017-03-22 | HILTI Aktiengesellschaft | Handwerkzeugmaschine |
CN105179520B (zh) * | 2015-10-09 | 2017-08-01 | 大连华锐重工起重机有限公司 | 起重机用棘轮棘爪装置 |
CN105508461B (zh) * | 2016-02-21 | 2017-10-31 | 上海洲跃生物科技有限公司 | 一种高承载销柱式超越离合器 |
US10570966B2 (en) | 2016-11-04 | 2020-02-25 | Milwaukee Electric Tool Corporation | Clutch mechanism for rotary power tool |
CN109398158B (zh) * | 2017-08-15 | 2023-06-16 | 扬州东方吊架有限公司 | 双向制动补偿装置 |
Family Cites Families (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE59456C (de) * | Frau M. GAWRON in Stettin, Pommerensdorferstr. 13 | Federnde Kupplung mit von den Federenden abgleitenden Knaggen | ||
US415653A (en) * | 1889-11-19 | Shaft coupling or clutch | ||
US1818690A (en) * | 1929-05-15 | 1931-08-11 | E Ingraham Co | Pawl for ratchet-mechanisms |
US1865559A (en) * | 1930-02-21 | 1932-07-05 | Montgrand Leon De | Mechanical coupling |
US2322608A (en) * | 1941-07-19 | 1943-06-22 | Bendix Aviat Corp | Engine starting mechanism |
US2551718A (en) * | 1946-05-10 | 1951-05-08 | Chrysler Corp | Stoker overload safety clutch |
US2637987A (en) * | 1947-02-18 | 1953-05-12 | Hil Jon Safety Crown Corp | Overload release coupling |
DE820659C (de) * | 1950-02-14 | 1951-11-12 | Normalzeit G M B H | Elastische Sicherheitskupplung |
US2818950A (en) * | 1952-12-03 | 1958-01-07 | Hoe & Co R | Ratchet |
US3115788A (en) * | 1962-06-27 | 1963-12-31 | Kienzle Uhrenfabriken Ag | Drive pawl for electrically wound clocks |
US3593542A (en) * | 1969-06-04 | 1971-07-20 | Motoro Urayama | Limited torque coupling |
US4043437A (en) * | 1975-12-19 | 1977-08-23 | Lipe-Rollway Corporation | Torque limiting clutch brake |
US4287974A (en) * | 1979-10-17 | 1981-09-08 | Coin Acceptors, Inc. | Clutch assembly for vending control system |
CH662868A5 (en) * | 1982-05-10 | 1987-10-30 | Baumann Rolladen | Torque-limiting coupling |
US4970998A (en) * | 1989-05-26 | 1990-11-20 | Eaton Indiana, Inc. | Offset starter pawl |
GB9114634D0 (en) * | 1991-07-06 | 1991-08-21 | Connor Peter A | Torque-limiting device and continuously-variable ratio transmission device |
DE69223608T2 (de) * | 1991-09-30 | 1998-04-09 | Ntn Toyo Bearing Co Ltd | Drehmomentbegrenzer mit automatischen rückstellfunktionen |
JP4232243B2 (ja) * | 1998-12-04 | 2009-03-04 | 株式会社デンソー | ワンウエイクラッチ |
DE19929833A1 (de) | 1999-06-30 | 2001-01-04 | Hilti Ag | Kupplung für Bohrgerät |
JP2001343025A (ja) * | 2000-03-29 | 2001-12-14 | Toyota Industries Corp | 動力伝達機構 |
JP2002005201A (ja) * | 2000-06-20 | 2002-01-09 | Nsk Warner Kk | ラチェット型ワンウェイクラッチ |
US8033372B2 (en) * | 2005-09-02 | 2011-10-11 | Gkn Sinter Metals, Llc | Overrunning clutch |
DE102008029578A1 (de) * | 2008-06-21 | 2009-12-24 | Schaeffler Kg | Freilaufkupplung |
DE102008064153A1 (de) * | 2008-12-19 | 2010-07-01 | Schaeffler Technologies Gmbh & Co. Kg | Formschlüssige Freilaufkupplung |
-
2009
- 2009-11-06 DE DE102009046475A patent/DE102009046475A1/de not_active Ceased
-
2010
- 2010-11-02 US US13/508,492 patent/US9879734B2/en active Active
- 2010-11-02 EP EP10773311A patent/EP2496854A1/de not_active Withdrawn
- 2010-11-02 WO PCT/EP2010/066612 patent/WO2011054807A1/de active Application Filing
Non-Patent Citations (2)
Title |
---|
None * |
See also references of WO2011054807A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2011054807A1 (de) | 2011-05-12 |
US20120252585A1 (en) | 2012-10-04 |
DE102009046475A1 (de) | 2011-05-12 |
US9879734B2 (en) | 2018-01-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20120606 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: SCHALLERT, MANFRED Inventor name: KAIBACH, WERNER Inventor name: MANSCHITZ, ERWIN Inventor name: MOESSNANG, FRANZ Inventor name: LUDWIG, MANFRED Inventor name: STROISSNIGG, HORST Inventor name: KRISTEN, FERDINAND |
|
DAX | Request for extension of the european patent (deleted) | ||
17Q | First examination report despatched |
Effective date: 20161031 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20170311 |