WO2016004942A1 - Zweimassenschwungrad - Google Patents
Zweimassenschwungrad Download PDFInfo
- Publication number
- WO2016004942A1 WO2016004942A1 PCT/DE2015/200383 DE2015200383W WO2016004942A1 WO 2016004942 A1 WO2016004942 A1 WO 2016004942A1 DE 2015200383 W DE2015200383 W DE 2015200383W WO 2016004942 A1 WO2016004942 A1 WO 2016004942A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- mass
- bearing
- primary
- bearing sleeve
- mass flywheel
- 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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
- F16F15/12—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
- F16F15/131—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon the rotating system comprising two or more gyratory masses
- F16F15/13164—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon the rotating system comprising two or more gyratory masses characterised by the supporting arrangement of the damper unit
- F16F15/13171—Bearing arrangements
- F16F15/13178—Bearing arrangements comprising slide bearings
Definitions
- the invention relates to a dual-mass flywheel with a primary mass and a secondary mass, which are against the action of a spring accumulator rotated against each other, wherein the secondary mass is supported with a thrust bearing and a radial sliding bearing on the primary mass.
- Dual mass flywheels are used as vibration absorbers for torsional vibrations in drive trains of motor vehicles, the
- Dual mass flywheel usually between the crankshaft of a
- Motor vehicle driving internal combustion engine and a gearbox upstream vehicle clutch is arranged. By against spring force and possibly also against dry friction relative to each other rotatable
- Primary flywheel mass and secondary flywheel are torsional vibrations, which are caused by the non-uniform drive torque of the engine usually designed as a piston engine, eradicated.
- Dual-mass flywheel on an abutment of the primary mass usually in the form of a screwed to the primary mass hub from.
- the secondary mass is supported by an axial sliding bearing and a radial sliding bearing on the primary mass.
- Both the radial bearing and the thrust bearing include sintered bronze bearings.
- Fig. 1, 2 and 3 show an embodiment of such a storage, wherein Fig. 2 shows a two-part and Fig. 3 shows a one-piece design of the bushings.
- a disadvantage of the known solution is the cost of the thrust bearing.
- the removal of frictional heat from the thrust bearing in the case of the two-part design is difficult. This results in an increased risk of sliding layer separation on
- Thrust bearing Another disadvantage is the space requirement of the thrust bearing and the
- An object of the invention is therefore to provide an alternative storage that avoids the aforementioned disadvantages.
- Dual mass flywheel with a primary mass and a secondary mass, which are against the action of a spring accumulator rotated against each other, wherein the secondary mass is supported with a thrust bearing and a radial sliding bearing on the primary mass, the thrust bearing by a face of the
- Secondary mass and a support ring of the primary mass is formed.
- the end face of the secondary mass is supported directly sliding on the support ring of the
- the spring accumulator is in particular a bow spring arrangement with one or more bow springs.
- the support ring is attached in one embodiment of the invention to a centering hub.
- the centering hub is bolted or riveted to the primary side, which facilitates the manufacture of the individual parts.
- the axial sliding bearing preferably comprises a sintered bronze bearing in the form of a
- Bearing sleeve made of sintered bronze, which is pressed with the secondary side.
- the bearing sleeve comprises in one embodiment of the invention, a cylindrical part and a part opposite this widened.
- the expanded part serves for the axial fixing of the bearing sleeve, in particular the positive axial fixing in the direction of the vehicle coupling.
- the bearing sleeve is secured in one embodiment of the invention in a bearing flange.
- the bearing flange has an opening or bore in which the
- Bearing sleeve is attached.
- the attachment is preferably frictionally engaged, in particular by pressing the bearing sleeve.
- the bearing flange has an undercut in one embodiment of the invention, which preferably together with the flared portion of the bearing sleeve forms a stop.
- the end face of the secondary mass is arranged in an embodiment of the invention on the bearing flange, wherein the end face is preferably finely machined. Fine machining is understood here to mean any form of reduction in roughness, for example by grinding, polishing, milling or the like.
- the support ring is in one embodiment of the invention made of plastic. It may be an injection molded part which is surface-coated. Such a plastic component is inexpensive to manufacture and easy to assemble.
- Fig. 1 shows an embodiment of a dual mass flywheel in a
- FIG. 2 shows an enlarged detail from FIG. 1
- FIG. 3 shows an alternative bearing arrangement as a comparative example
- FIG. 4 shows an embodiment of a bearing arrangement according to the invention.
- Fig. 1 shows a dual-mass flywheel 1 according to the prior art in one
- Such a dual-mass flywheel 1 is arranged in the drive train of a motor vehicle between the crankshaft of the internal combustion engine and the vehicle clutch.
- the internal combustion engine is usually a gasoline or diesel engine.
- Vehicle clutch is a single or double clutch.
- the torque of Vehicle clutch is via a manual transmission, which is a manual transmission with a countershaft (in a single clutch) or with two countershafts (in a dual clutch) via one or fourwheel multiple Differenzialget eb and
- the axis of rotation of the dual mass flywheel is designated R in FIG.
- the axis of rotation R is the axis of rotation of the dual mass flywheel 1 and at the same time the axis of rotation of a crankshaft of a not shown
- Dual mass flywheel 1 downstream vehicle clutch which is also not shown.
- the direction is understood to be parallel to the axis of rotation R under the axial direction, and according to the radial direction, a direction perpendicular to the axis of rotation R is understood.
- the circumferential direction is a rotation about the rotation axis R.
- the dual-mass flywheel 1 comprises a primary mass or primary side 2 and a secondary mass or secondary side 3, which are against the force of a
- Bow spring assembly 4 can be rotated relative to each other about the rotation axis R.
- the bow spring assembly 4 includes a plurality of circumferentially
- each bow spring 8 may include coaxially arranged inner and outer springs.
- the bow springs 8 are pressed in operation by acting on these centrifugal force to the outside against the primary mass 2.
- the primary mass 2 comprises a motor-side primary mass plate 6 and a
- Primary wet covers 5 include a bow spring receptacle 12 in which the
- Bow springs 8 are arranged.
- the bow springs 8 are based on a spring end of the primary mass 2 from, for example, not shown here webs or lugs that protrude into the enclosed by the primary mass sheet 6 and the primary wet cover 5 bow spring receptacle 12.
- the damper springs 8 With the other end of the spring, the damper springs 8 are supported on flange wings 13 of a secondary flange 9.
- the flange wings 13 extend radially outward and grip the spring ends the bow springs 8 a.
- the axis of the bow of the bow springs that is a circular line that arises along the circle centers of the bow spring in sections parallel to the axis of rotation, such a cut is z. 1, extends through the flange wings 13.
- the secondary flange 9 has paragraphs each in the manner of a crank, so that an outer part is arranged axially offset in the direction of the crankshaft to an inner part.
- the secondary flange 9 is provided with a
- Counterpressure plate 10 connected by means of rivets 15.
- the counterpressure plate 10 is part of a single or multiple disc clutch. In installation position of the dual mass flywheel, the mass or the mass moment of inertia of the counter-pressure plate together with all non-rotatably connected with this parts such as pressure plate (s), plate spring (s), etc., part of the secondary mass.
- a starter ring gear 1 1 is arranged, which can be brought into the installed position of the dual mass flywheel with an electric starter of the motor vehicle, not shown here in engagement.
- the primary mass 2 is in installation position for transmitting torque with the
- crankshaft of the internal combustion engine screwed with fastening screws, not shown, with the crankshaft, not shown, of the internal combustion engine.
- a diaphragm spring membrane 16 is arranged at the secondary flange 9.
- Disc spring diaphragm 16 is between the secondary flange 9 and the
- Disc spring diaphragm 16 is biased in the axial direction, that the contact surface 17 is pressed onto the diaphragm ring 18.
- the diaphragm ring 18 has an approximately L-shaped cross-section with a substantially axially extending
- Axial leg and an obliquely extending radial leg With oblique, it is meant that the radial leg extends inclined by an angle greater than zero relative to the radial direction.
- the axial leg abuts against a circumferential radial abutment shoulder of a recess in the radially inner region of the primary mass cover 5.
- the radial leg is at an angle
- the diaphragm spring diaphragm 16 forms with the
- Diaphragm ring 18 a seal. Mounting-related openings 19 in the
- Primary mass plate 6 are sealed by pressed-sealing caps 20.
- the primary mass plate 6 lies with its radially inner region at one
- Flange plate 22 a centering hub 23 from.
- the centering hub 23 comprises in addition to the flange plate 22, a support tube 24 which is connected via a connecting portion 25 with the flange plate 22.
- In the flange plate 22 are holes 26th
- Primary ground plate 6 are.
- the holes 26 and 27 serve to screw the dual mass flywheel with the crankshaft, not shown here.
- On the side facing away from the flange plate 22 of the primary mass plate 6 is a
- Reiblyblech 28 arranged, which carries a sealing ring 29.
- the counter-pressure plate 10 of the vehicle clutch comprises a bearing flange 30 with which it is supported in the radial and axial direction via a bearing arrangement 31 on the centering hub 23.
- the bearing flange 30 has holes 32 through the screws for
- Screwing of Reibmblech, primary mass plate 6 and flange plate 22 can be introduced with the crankshaft, not shown.
- Fig. 2 shows a section around the bearing assembly 31 in Fig. 1 in an enlarged view.
- the bearing arrangement 31 comprises an L-shaped first bearing sleeve 33, a hollow cylindrical second bearing sleeve 34 and a support ring 35, which are parts of a radial sliding bearing 36 and a Axialgleitlagers 37.
- the bearing flange 30 has a bore with a surface 38. At the end face in the installation position of the crankshaft, the bearing flange 30 has a plane end face 39.
- the first bearing sleeve 33 is pressed with its hollow cylindrical limb into the bore in the bearing flange 30. Accordingly, the second bearing sleeve 34 is pressed into the bore in the bearing flange 30. The first bearing sleeve 33 and the second bearing sleeve 34 are therefore firmly connected to the bearing flange 30.
- the first bearing sleeve 33 includes a cylindrical portion 33a and an annular portion 33b.
- the cylindrical portion 33a substantially serves to attach the first bearing sleeve 33 to the bearing flange 30, the annular portion 33b forms an axial surface which abuts against the support ring 35 and is part of the axial sliding bearing 37.
- the inner surface of the second bearing sleeve 34 forms with the outer surface of the support tube 24, the radial sliding bearing 36.
- the plate-shaped leg of the first bearing sleeve 33 is supported on the fixedly connected to the centering hub 23 support ring 35 and forms together with this the Axialgleitlager 37th
- Fig. 3 shows another comparative example in which a one-piece bearing sleeve 40 is used. Instead of a first bearing sleeve 33 and a second bearing sleeve 34, only the one-piece bearing sleeve 40 is present, this corresponds to one
- the one-piece bearing sleeve 40 comprises a
- FIG. 3 Apart from the integral nature of the bearing sleeve 40, the embodiment of FIG. 3 is identical to the embodiment shown in FIGS. 1 and 2.
- the bearing sleeves 33, 34 and 40 are made of sintered bronze, wherein
- Radial sliding bearing 36 therefore runs the sintered bronze of the bearing sleeves against steel, in the Axialgleitlager 37 runs the sintered bronze of the first bearing sleeve 33 and the bearing sleeve 40 against the support ring 35 made of plastic.
- the radial slide bearing 36 here comprises a cylindrical bearing sleeve 41, which forms an axial sliding bearing together with the support tube 24.
- the bearing flange 30 has in the area the end face 39 a circumferential recess 42 into which a flared portion 43 of the cylindrical bearing sleeve 41 protrudes.
- the bearing sleeve 41 comprises a cylindrical portion 44 and the flared portion 43.
- the flared portion 43 thus deviates from the cylindrical shape and is shaped like a truncated cone, wherein the maximum outer diameter is greater than the outer diameter of the cylindrical portion of the bearing sleeve 41st
- the widened part 43 forms with the undercut 42 a stop acting in the axial direction, which prevents movement of the bearing sleeve 41 in the direction of the coupling.
- the bearing sleeve 41 has a chamfer 45 on its outside.
- the end face 39 of the bearing flange 30 runs directly on the support ring 35 and forms the Axialgleitlager 37.
- the thrust bearing 37 is therefore a
- the axial sliding bearing 37 is thus formed by the material pairing sintered bronze of the bearing sleeve opposite the plastic of the support ring 35.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Mechanical Operated Clutches (AREA)
Abstract
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE112015003161.8T DE112015003161A5 (de) | 2014-07-08 | 2015-06-19 | Zweimassenschwungrad |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102014213234.7 | 2014-07-08 | ||
| DE102014213234.7A DE102014213234A1 (de) | 2014-07-08 | 2014-07-08 | Zweimassenschwungrad |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2016004942A1 true WO2016004942A1 (de) | 2016-01-14 |
Family
ID=53761170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/DE2015/200383 Ceased WO2016004942A1 (de) | 2014-07-08 | 2015-06-19 | Zweimassenschwungrad |
Country Status (2)
| Country | Link |
|---|---|
| DE (2) | DE102014213234A1 (de) |
| WO (1) | WO2016004942A1 (de) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007140741A1 (de) * | 2006-06-02 | 2007-12-13 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Geteiltes schwungrad |
-
2014
- 2014-07-08 DE DE102014213234.7A patent/DE102014213234A1/de not_active Withdrawn
-
2015
- 2015-06-19 DE DE112015003161.8T patent/DE112015003161A5/de not_active Ceased
- 2015-06-19 WO PCT/DE2015/200383 patent/WO2016004942A1/de not_active Ceased
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007140741A1 (de) * | 2006-06-02 | 2007-12-13 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Geteiltes schwungrad |
Also Published As
| Publication number | Publication date |
|---|---|
| DE112015003161A5 (de) | 2017-03-23 |
| DE102014213234A1 (de) | 2016-01-14 |
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