WO2014187458A1 - Freilauf - Google Patents
Freilauf Download PDFInfo
- Publication number
- WO2014187458A1 WO2014187458A1 PCT/DE2014/200186 DE2014200186W WO2014187458A1 WO 2014187458 A1 WO2014187458 A1 WO 2014187458A1 DE 2014200186 W DE2014200186 W DE 2014200186W WO 2014187458 A1 WO2014187458 A1 WO 2014187458A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- freewheel
- outer ring
- ring
- inner ring
- torque transmission
- 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
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
- F16D41/00—Freewheels or freewheel clutches
- F16D41/12—Freewheels or freewheel clutches with hinged pawl co-operating with teeth, cogs, or the like
- F16D41/16—Freewheels or freewheel clutches with hinged pawl co-operating with teeth, cogs, or the like the action being reversible
-
- 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
Definitions
- the invention relates to a freewheel for a torque transmission device, with an inner ring and an outer ring, which are rotatably connected to each other for torque transmission by means of a locking device.
- the freewheel is designed for example as a pawl freewheel.
- a switchable pawl freewheel is known, which consists of a clutch hub and a rotatably mounted thereon coupling sleeve, which are connected in driving direction via at least one radially outwardly resilient pawl and associated Sperrklinkenaus- recesses with each other.
- the object of the invention is to improve a freewheel for a torque transmission device, with an inner ring and an outer ring, which are rotatably connected to each other for torque transmission by means of a locking device, in particular with regard to its function and / or manufacturability to improve.
- a freewheel for a torque transmission device with an inner ring and an outer ring, which are rotatably connected to each other for torque transmission by means of a locking device connected by a tolerance compensation device.
- the freewheel is designed for example as a pawl freewheel and is preferably used in drive trains of motor vehicles, in particular in a belt drive.
- the locking device comprises, for example, a plurality of locking elements, which are advantageously arranged in pairs opposite one another. For a uniform support of a torque to be transmitted, it is advantageous that two pairs of oppositely arranged locking elements engage evenly in a toothing, which is formed for example on the outer ring.
- tolerance compensation device By manufacturing tolerances of the individual baggage parts, it may happen that only one of two locking elements engages in the toothing and the entire torque is transmitted only by a blocking element. This results in a significant lateral force that must be borne by a corresponding bearing between the inner ring and the outer ring.
- the tolerance compensation device ensures that the entire torque is transmitted not only by one blocking element but by several, preferably two, blocking elements.
- a preferred embodiment of the freewheel is characterized in that the tolerance compensation device allows a compensating movement of the locking device relative to the outer ring or the inner ring.
- the tolerance compensation device allows in particular the compensating movement of a locking element, which is not or only insufficiently engaged with the outer ring or the inner ring, relative to the outer ring or the inner ring.
- a further preferred embodiment of the freewheel is characterized in that the tolerance compensation device allows a relative movement in the radial direction.
- the term radial refers to a rotation axis of the torque transmission device. Radial means transverse to the axis of rotation.
- a further preferred embodiment of the freewheel is characterized in that the inner ring or the outer ring has a radially displaceable division.
- a further preferred embodiment of the freewheel is characterized in that the tolerance compensation device comprises an intermediate ring which is displaceable relative to the inner ring or the outer ring limited.
- the intermediate ring is advantageously limited in the radial direction displaced.
- a further preferred embodiment of the freewheel is characterized in that the inner ring or the outer ring has guide cams which engage in guide recesses provided on the intermediate ring.
- the guide cams may also be formed on the intermediate ring and engage in guide recesses provided on the inner ring or the outer ring.
- a further preferred embodiment of the freewheel is characterized in that the intermediate ring has two diametrically arranged guide recesses which are arranged in the circumferential direction offset to locking elements of the locking device.
- the blocking Elements of the locking device are preferably combined in pairs and arranged offset by ninety degrees in the circumferential direction to the guide recesses.
- the guide recesses may also be formed on the outer ring or the inner ring.
- the freewheel is designed as a pawl freewheel.
- locking elements are designed as pawls.
- the locking elements, in particular pawls are advantageously biased by spring means against the outer ring or the inner ring.
- a further preferred embodiment of the freewheel is characterized in that the freewheel comprises a switching device.
- the switching device in turn comprises, for example, a switching cage. With the help of the switching device, the transmission of torque in different relative directions of rotation between the inner ring and the outer ring can be made possible.
- the invention further relates to a torque transmission device with a previously described freewheel.
- the torque transmission device is advantageously used in drive trains of motor vehicles for transmitting relatively high torques in certain operating states, but in other operating states, the torque should not be transmitted or in another direction.
- the invention also relates to the use of the torque transmitting device in drive trains, gearboxes, motors, belt and chain drives and the like.
- Figure 1 shows a partial view of a cross section through a torque transmitting device with a pawl freewheel
- Figure 2 shows the enlarged view of a section II of Figure 1 and 3 shows the torque transmission device of Figure 1 with a tolerance compensation device according to the invention.
- the 1 shows a torque transmission device 1 with a freewheel 5 is shown in cross section.
- the freewheel 5 is designed as a pawl freewheel and comprises an inner ring 6 which is rotatably mounted relative to an outer ring 8.
- the inner ring 6 is non-rotatably connected to an input part (not shown) of the torque transmission device 1.
- the outer ring 8 is provided with an outer toothing 9, which serves for the representation of a rotationally fixed connection with a toothed belt (not shown) of a belt drive.
- the torque transmission device 1 further comprises a locking device 10 with four locking elements 1 1, 12, 13, 14.
- the locking elements 1 1 to 14 of the locking device 10 are designed for example as pawls and allow torque transmission between the inner ring 6 and the outer ring 8, and vice versa.
- the locking elements 1 1 and 13 provide a rotationally fixed connection between the inner ring 6 and the outer ring 8, when the inner ring 6 rotates clockwise.
- the locking elements 1 1 to 14 are biased by spring means 15, 16 radially outwardly against an internal toothing 17 which is provided on the outer ring 8.
- the locking elements 1 1, 12 and 13, 14 are paired diametrically arranged.
- the locking elements 1 1 to 14 are suspended in a profile of the inner ring 6.
- the spring means 15, 16 which are advantageously designed as sheet metal springs, the locking elements
- the torque transmission device 1 further comprises a switching device 18, which is designed in the illustrated embodiment as a Umschaltkarfig.
- the Umschaltkarfig 18 can be rotated relative to the inner ring 6 in order to prevent engagement of the radially outwardly biased locking elements or pawls 1 1 to 14 in the inner toothing 17 of the outer ring 8.
- torque is transmitted via the blocking elements 11 and 13.
- the blocking elements are designed in the illustrated embodiment as a Umschaltkafig.
- FIG. 2 shows a detail II of FIG. 1 enlarged. In the enlarged
- Section one sees that the blocking element 13 does not engage correctly in the internal toothing 17 of the outer ring 8.
- a gap which is indicated by a double arrow 20.
- the distance or gap 20 causes the entire torque is transmitted only from the upper pawl or the upper blocking element 1 1 in Figure 1. This leads to a considerable lateral force, which heavily loads the bearing between the inner ring 6 and the outer ring 8.
- the freewheel 35 is designed as a pawl freewheel and comprises an inner ring 36 and an outer ring 38.
- the inner ring 36 and the outer ring 38 as in the torque transmission device 1 shown in Figure 1, with the aid of a locking device 40 rotatably connected.
- the locking device 40 comprises locking elements 41 to 44, which are biased by spring means 45, 46 radially outwardly.
- the outer ring 38 is, as the outer ring 8 of the torque transmission device 1 shown in Figure 1, provided with an internal toothing 47.
- the freewheel 35 like the freewheel 5, with the aid of a switching device 48 switchable, which is designed as Umschaltkyfig.
- the torque transmission device 31 is equipped with a tolerance compensation device 50 according to an essential aspect of the invention.
- the inner ring 36 is not made in one piece, as in the case of the torque transmission device 1 shown in FIG. 1, but combined with an intermediate ring 52.
- This provides the advantage that the locking device 40 is displaceable for storage between the inner ring 36 and the outer ring 38.
- the inner ring 36 and the intermediate ring 52 are designed so that they are radially displaceable to each other within certain limits.
- the blocking elements or pawls 41 to 44 are suspended in a profile in the intermediate ring 52.
- the locking elements 41 to 44 are pressed outwardly into the internal teeth 47 of the outer ring 38.
- a torque can be transmitted in the effective direction of the respective locking element.
- the switching cage 48 is rotatable relative to the intermediate ring 52 for switching. Depending on the position of the Umschalthanfigs 48 is controlled, which locking elements or pawls 41 to 44 engage in the internal teeth 47 in the outer ring 38. This determines in which direction the pawl freewheel 35 can transmit torque.
- the pawl or locking elements 41 to 44 are arranged in pairs so that always two locking elements 41 and 43 simultaneously engage in the internal teeth 47, while the other two locking elements 42, 44 are blocked by the switching device 48 so that they do not interfere with the internal teeth 47 engage the outer ring 38.
- the tolerance compensation device 50 is the same or something similar used in a non-switchable pawl freewheel.
- the tolerance compensation can also be performed by dividing the outer ring 38 in an outer ring and a separate intermediate ring with internal teeth.
- the tolerance compensation is also implemented in a pawl freewheel bar, in which the locking elements or pawls are mounted in a profile in the outer ring and engage in a toothing on the inner ring.
- the torque transfer device The torque transfer device
- the torque transfer device The torque transfer device
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Arrangement And Mounting Of Devices That Control Transmission Of Motive Force (AREA)
- Mechanical Operated Clutches (AREA)
Abstract
Description
Claims
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201480029342.4A CN105324586B (zh) | 2013-05-22 | 2014-04-25 | 空程装置 |
| DE112014002530.5T DE112014002530B4 (de) | 2013-05-22 | 2014-04-25 | Freilauf und Drehmomentübertragungsvorrichtung mit einem Freilauf |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102013209452 | 2013-05-22 | ||
| DE102013209452.3 | 2013-05-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2014187458A1 true WO2014187458A1 (de) | 2014-11-27 |
Family
ID=50771390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/DE2014/200186 Ceased WO2014187458A1 (de) | 2013-05-22 | 2014-04-25 | Freilauf |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN105324586B (de) |
| DE (1) | DE112014002530B4 (de) |
| WO (1) | WO2014187458A1 (de) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015021974A1 (de) * | 2013-08-15 | 2015-02-19 | Schaeffler Technologies Gmbh & Co. Kg | Freilauf |
| DE102019101371A1 (de) | 2019-01-21 | 2020-07-23 | Volkswagen Aktiengesellschaft | Verfahren zum Betreiben eines Hybridfahrzeugs |
| DE102016211145B4 (de) | 2016-06-22 | 2022-03-31 | Schaeffler Technologies AG & Co. KG | Aktorlos betätigte Riemenscheibenkupplung mit Fliehkraft- und Trägheitsstellelementen |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT201900000145A1 (it) | 2019-01-08 | 2020-07-08 | Comer Ind Spa | Sistema di collegamento albero-mozzo con gioco angolare per la trasmissione bidirezionale della coppia motrice. |
| CN111336193B (zh) * | 2020-04-02 | 2024-10-11 | 南京苏孚乐遮阳科技有限公司 | 一种单向传动结构及遮阳装置 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3934963C1 (de) | 1989-10-20 | 1991-02-28 | Jean Walterscheid Gmbh, 5204 Lohmar, De | |
| JPH05126171A (ja) * | 1991-07-25 | 1993-05-21 | Ntn Corp | ワンウエイクラツチユニツト及びトルクリミツタユニツト |
| WO1995014867A1 (en) * | 1993-11-26 | 1995-06-01 | Minnesota Mining And Manufacturing Company | Device for transmission of one-way torque |
| FR2897117A1 (fr) * | 2006-02-03 | 2007-08-10 | Denso Corp | Demarreur |
| US20090242347A1 (en) * | 2008-03-31 | 2009-10-01 | Satou Chiyori | One-way clutch |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH550952A (de) * | 1972-04-07 | 1974-06-28 | Sig Schweiz Industrieges | Getriebe mit in bezug auf seinen synchronbetrag veraenderbaren ausgangswellen-drehwinkel. |
| JP2595334B2 (ja) * | 1988-11-17 | 1997-04-02 | 多摩川精機株式会社 | トルク伝達装置 |
| DE19929833A1 (de) | 1999-06-30 | 2001-01-04 | Hilti Ag | Kupplung für Bohrgerät |
| JP4887941B2 (ja) * | 2006-06-30 | 2012-02-29 | マツダ株式会社 | 動力伝達装置 |
| US8091696B2 (en) | 2007-01-12 | 2012-01-10 | GM Global Technology Operations LLC | Rocker clutch assembly |
| US8267231B2 (en) * | 2007-09-28 | 2012-09-18 | GM Global Technology Operations LLC | Electrically variable transmission with an axially-moveable selectable one-way clutch assembly |
-
2014
- 2014-04-25 DE DE112014002530.5T patent/DE112014002530B4/de active Active
- 2014-04-25 CN CN201480029342.4A patent/CN105324586B/zh active Active
- 2014-04-25 WO PCT/DE2014/200186 patent/WO2014187458A1/de not_active Ceased
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3934963C1 (de) | 1989-10-20 | 1991-02-28 | Jean Walterscheid Gmbh, 5204 Lohmar, De | |
| JPH05126171A (ja) * | 1991-07-25 | 1993-05-21 | Ntn Corp | ワンウエイクラツチユニツト及びトルクリミツタユニツト |
| WO1995014867A1 (en) * | 1993-11-26 | 1995-06-01 | Minnesota Mining And Manufacturing Company | Device for transmission of one-way torque |
| FR2897117A1 (fr) * | 2006-02-03 | 2007-08-10 | Denso Corp | Demarreur |
| US20090242347A1 (en) * | 2008-03-31 | 2009-10-01 | Satou Chiyori | One-way clutch |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015021974A1 (de) * | 2013-08-15 | 2015-02-19 | Schaeffler Technologies Gmbh & Co. Kg | Freilauf |
| DE102016211145B4 (de) | 2016-06-22 | 2022-03-31 | Schaeffler Technologies AG & Co. KG | Aktorlos betätigte Riemenscheibenkupplung mit Fliehkraft- und Trägheitsstellelementen |
| DE102019101371A1 (de) | 2019-01-21 | 2020-07-23 | Volkswagen Aktiengesellschaft | Verfahren zum Betreiben eines Hybridfahrzeugs |
Also Published As
| Publication number | Publication date |
|---|---|
| DE112014002530B4 (de) | 2023-07-27 |
| CN105324586A (zh) | 2016-02-10 |
| CN105324586B (zh) | 2018-12-07 |
| DE112014002530A5 (de) | 2016-02-25 |
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