EP3542080A1 - Synchroniser ring - Google Patents
Synchroniser ringInfo
- Publication number
- EP3542080A1 EP3542080A1 EP17788113.3A EP17788113A EP3542080A1 EP 3542080 A1 EP3542080 A1 EP 3542080A1 EP 17788113 A EP17788113 A EP 17788113A EP 3542080 A1 EP3542080 A1 EP 3542080A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- width
- extending
- edges
- synchronizer ring
- ring according
- 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- Withdrawn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
- F16D23/00—Details of mechanically-actuated clutches not specific for one distinct type
- F16D23/02—Arrangements for synchronisation, also for power-operated clutches
- F16D23/025—Synchro rings
-
- 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
- F16D23/00—Details of mechanically-actuated clutches not specific for one distinct type
- F16D23/02—Arrangements for synchronisation, also for power-operated clutches
- F16D23/04—Arrangements for synchronisation, also for power-operated clutches with an additional friction clutch
- F16D23/06—Arrangements for synchronisation, also for power-operated clutches with an additional friction clutch and a blocking mechanism preventing the engagement of the main clutch prior to synchronisation
Definitions
- the invention relates to a synchronizer ring according to the preamble of
- Such a synchronizer ring is known for example from EP 2 677 188 B1.
- the known synchronizer ring has on its peripheral surface a toothing for engagement in an opening provided on a sliding sleeve internal teeth. Further, on the outer circumference of the synchronizer ring radially projecting locking body or index cams may be provided for engagement in corresponding recesses on a rotatably connected to the shaft synchronizer body. A circumferentially extending width of the locking body and a further width of the corresponding recesses on the synchronizer body are chosen so that the synchronizer ring can rotate relative to the synchronizer body by a small angle.
- the locking body may be formed by a bent tab in the axial direction (index tab or
- the object of the invention is to eliminate the disadvantages of the prior art. It should be specified in particular a synchronizer ring with improved durability. - -
- the second edges 12 have a convex curvature in a radial plan view of the engagement section 6, wherein a second width B2 extending in the circumferential direction between the second edges 12 is greater at a depth T2 spaced from the first edge 11 the first width is B1.
- depth is generally understood to mean an axial distance to the first edge 11.
- a maximum depth T1 of the engagement section 6 corresponds approximately to the length of one of the second edges 2.
- Engaging section 6 understood. In other words, this viewing direction is directed perpendicular to the axial direction or perpendicular to the axis of rotation of the synchronizer ring. In this viewing direction results from the engagement portion 6, the view shown in Figure 2.
- Synchronization process no longer come that the force exerted on the synchronizer ring forces in the vicinity of the first edge 11 at the engaging portion of
- Lever arm shortened between the force application point P and a bending portion 5 of the locking body. As a result, the loads applied to the clincher portion can be reduced, thereby increasing the durability of the synchronizer ring.
- Synchronizer K can occur.
- Side surfaces is such that the lateral projection of the side surfaces on the top view of the engagement portion 6 (as shown for example in Fig. 2) coincides with the second edges 12 bounding these side surfaces.
- the relationship between the first width B1 and the second width B2 is as follows:
- B2 B1 * K, where K is a factor in the range of 1.005 to 1.10.
- K is a factor in the range of 1.005 to 1.10.
- Width B2 by 0.05 to 0.4 mm, preferably 0.1 to 0.2 mm, greater than the first width B1.
- the toothing advantageously extends from a peripheral portion adjoining the first end face of the main body.
- the blocking body can be formed from a tab extending from the peripheral portion, wherein the tab has a bent portion and an engagement portion extending therefrom in the axial direction to a second end face opposite the first end face of the base body.
- a circumferentially extending width of the engagement portion, in particular the first B1 and the second width B2, is
- the toothing can be formed by sections in the circumferential direction
- a blocking body can extend in a gap formed between two adjacent toothing sections.
- the convex shape of the second edges of the engagement portion is advantageously made by shear cutting.
- Fig. 1 is a perspective view of a synchronizer and - -
- FIG. 2 is a plan view of the locking body of FIG .. 1
- the synchronizer ring S has a base body 1, on the inside of which a first conical friction surface 2 is formed.
- a first end face of the base body 1 is denoted by the reference symbol S1 and a second end face lying opposite the first end face S1 is denoted by the reference symbol S2. From a peripheral portion adjacent to the first end face S1 extend radially outward
- Gearing sections 3 Between two adjacent gearing sections 3, a gap is formed in each case, of which in each case a generally denoted by the reference numeral 4 locking body extends radially outward.
- the blocking body 4 is formed from a lug integrally connected to the base body 1, which has a bending portion 5 and one extending therefrom
- Engaging portion 6 has.
- the engagement portion 6 extends in the axial direction.
- the synchronizing device shown in Fig. 1 further comprises a shift sleeve M, which corresponds to one of the toothing sections 3
- Internal toothing 7 has. A with a shaft (not shown here) rotatably connected synchronizer body K has an inner toothing 7 corresponding outer toothing 8.
- the external toothing 8 is formed in sections.
- recesses are designated, which correspond to the engaging portion 6.
- G is finally as a loose wheel
- the engagement portion 6 has a circumferentially extending first edge 11 and two axially extending second edges 12, which are opposite to each other.
- Reference symbol T1 denotes a maximum first depth of the engagement section 6, which corresponds essentially to the length of the second edges 12.
- a second depth T2 denotes an axial distance from the first edge 1 1 in the direction of
- the first edge 11 has a first width B1.
- T2 T1 * F, where F is a factor in the range of 0.1 to 1.0, preferably 0.2 to 0.9, more preferably 0.3 to 0.8.
- F is a factor in the range of 0.1 to 1.0, preferably 0.2 to 0.9, more preferably 0.3 to 0.8.
- the convexity of the second edges 12 may be maximum near the first depth T1.
- each of the second edges 12 may also have a plurality of convexities. Ie. the second edges 12 may also be configured wave-shaped. The convex shape of the second edges 12 may be formed by a combination of arbitrary waveforms. Ie. the second edges 12 may have asymmetrical convex shapes.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanical Operated Clutches (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016013716.9A DE102016013716B4 (en) | 2016-11-17 | 2016-11-17 | synchronizer ring |
PCT/EP2017/001244 WO2018091125A1 (en) | 2016-11-17 | 2017-10-24 | Synchroniser ring |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3542080A1 true EP3542080A1 (en) | 2019-09-25 |
Family
ID=60164638
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17788113.3A Withdrawn EP3542080A1 (en) | 2016-11-17 | 2017-10-24 | Synchroniser ring |
Country Status (5)
Country | Link |
---|---|
US (1) | US10975920B2 (en) |
EP (1) | EP3542080A1 (en) |
CN (1) | CN110023642B (en) |
DE (1) | DE102016013716B4 (en) |
WO (1) | WO2018091125A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE543961C2 (en) * | 2020-02-12 | 2021-10-12 | Scania Cv Ab | Gear Synchronizer Assembly, Transmission, and Vehicle |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4732247A (en) * | 1987-01-21 | 1988-03-22 | Chrysler Motors Corporation | Triple cone synchronizer with servo action |
DE102005035941B3 (en) * | 2005-07-28 | 2007-04-19 | Diehl Metall Stiftung & Co.Kg | Synchronizer ring package |
KR100834118B1 (en) * | 2007-03-12 | 2008-06-02 | 씨 와이 뮤텍 주식회사 | A manufacturing method for synchronizer ring and a synchronizer ring thereby |
DE102008023031B4 (en) * | 2008-05-09 | 2011-01-05 | Diehl Metall Stiftung & Co. Kg | Sheet synchronizer ring |
KR101558402B1 (en) * | 2008-06-18 | 2015-10-07 | 오엘리콘 프릭션 시스템즈 (져머니) 게엠베하 | Synchronizing ring and gear changing transmission for a vehicle |
DE102010010727A1 (en) | 2010-03-09 | 2011-09-15 | Schaeffler Technologies Gmbh & Co. Kg | Method for manufacturing intermediate ring for multi-cone synchronization device, involves forming curved contour of opposite contact areas by non-cutting shaping procedure using pressing tool |
DE102011087564A1 (en) | 2011-12-01 | 2013-06-06 | Schaeffler Technologies AG & Co. KG | Coupling ring structure for e.g. cone synchronizer of motor car, has constriction portions that are provided in friction elements which are held in recesses of conical or cylindrical annular portion |
EP2677188B1 (en) | 2012-06-20 | 2015-09-23 | Sulzer Friction Systems (Germany) GmbH | Synchronizer ring |
DE102012214345A1 (en) * | 2012-08-13 | 2014-02-13 | Schaeffler Technologies AG & Co. KG | Method for manufacturing synchronizer ring i.e. synchronizer intermediate ring, in motor vehicle, involves applying thermosetting polymer to sides of preform, and completely hardening polymer by heat treatment such that lining is formed |
DE102014103173B4 (en) * | 2014-03-10 | 2023-07-06 | Hoerbiger Antriebstechnik Holding Gmbh | synchronous assembly |
JP2017015252A (en) * | 2015-06-26 | 2017-01-19 | エリコン フリクション システムズ(ジャーマニー)ゲーエムベーハー | Assembly for synchronization unit of gear change transmission |
DE102016102701A1 (en) * | 2016-02-16 | 2017-08-17 | Hoerbiger Antriebstechnik Holding Gmbh | Synchronizing device and synchronization method |
-
2016
- 2016-11-17 DE DE102016013716.9A patent/DE102016013716B4/en active Active
-
2017
- 2017-10-24 CN CN201780066488.XA patent/CN110023642B/en active Active
- 2017-10-24 EP EP17788113.3A patent/EP3542080A1/en not_active Withdrawn
- 2017-10-24 WO PCT/EP2017/001244 patent/WO2018091125A1/en unknown
-
2019
- 2019-04-17 US US16/387,068 patent/US10975920B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
CN110023642B (en) | 2021-05-18 |
US20190242441A1 (en) | 2019-08-08 |
WO2018091125A1 (en) | 2018-05-24 |
DE102016013716B4 (en) | 2018-09-13 |
CN110023642A (en) | 2019-07-16 |
US10975920B2 (en) | 2021-04-13 |
DE102016013716A1 (en) | 2018-05-17 |
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