WO2009012768A1 - Articulation and articulated shaft comprising the same - Google Patents
Articulation and articulated shaft comprising the same Download PDFInfo
- Publication number
- WO2009012768A1 WO2009012768A1 PCT/DE2008/001208 DE2008001208W WO2009012768A1 WO 2009012768 A1 WO2009012768 A1 WO 2009012768A1 DE 2008001208 W DE2008001208 W DE 2008001208W WO 2009012768 A1 WO2009012768 A1 WO 2009012768A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- additional weight
- joint
- shaft
- hub
- connection portion
- Prior art date
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
- F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
- F16D3/16—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
- F16D3/20—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members
- F16D3/22—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts
- F16D3/223—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts the rolling members being guided in grooves in both coupling parts
- F16D3/224—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts the rolling members being guided in grooves in both coupling parts the groove centre-lines in each coupling part lying on a sphere
-
- 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
- F16D3/16—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
- F16D3/20—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members
- F16D3/22—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts
- F16D3/223—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts the rolling members being guided in grooves in both coupling parts
- F16D3/2237—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts the rolling members being guided in grooves in both coupling parts where the grooves are composed of radii and adjoining straight lines, i.e. undercut free [UF] type joints
-
- 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
- F16F15/32—Correcting- or balancing-weights or equivalent means for balancing rotating bodies, e.g. vehicle wheels
- F16F15/322—Correcting- or balancing-weights or equivalent means for balancing rotating bodies, e.g. vehicle wheels the rotating body being a shaft
-
- 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
- F16D3/16—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
- F16D3/20—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members
- F16D3/22—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts
- F16D3/223—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts the rolling members being guided in grooves in both coupling parts
- F16D2003/22306—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts the rolling members being guided in grooves in both coupling parts having counter tracks, i.e. ball track surfaces which diverge in opposite directions
-
- 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
- F16D3/16—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
- F16D3/20—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members
- F16D3/22—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts
- F16D3/223—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts the rolling members being guided in grooves in both coupling parts
- F16D2003/22326—Attachments to the outer joint member, i.e. attachments to the exterior of the outer joint member or to the shaft of the outer joint member
Definitions
- the invention relates to a joint, in particular a constant velocity fixed joint for a propeller shaft of a motor vehicle, with an inner hub, on the outer surface of outer raceways are provided with an inner hub at least partially embracing outer hub, on the inner surface of inner raceways are provided, and an at least approximately cylindrical and possibly . Having closed by a cover connection portion, and arranged with mutually associated raceway pairs balls for transmitting a torque between the outer hub and the inner hub. Furthermore, the invention relates to a propeller shaft with at least one such joint.
- balancing weights are arranged on the outer surface. These often consist of thin sheet metal strips which are welded onto the outer surface of the propeller shafts or joints in order to achieve the most rotationally symmetrical weight distribution possible in the components of a propeller shaft rotating during operation, and thus to avoid unbalance vibrations.
- these balancing weights have only a very small mass, so that they have no appreciable influence on the favored by the lightweight construction vibration behavior.
- absorber weights are provided. With these balancing or absorber weights mounted externally on the components of a propeller shaft, it is considered to be disadvantageous that contaminants can become trapped therein during operation, for example when the cardan shaft comes into contact with plants, the soil or the like.
- the object of the present invention is to provide a joint and a propeller shaft of the type mentioned at the outset, which have an improved vibration behavior.
- an additional weight is arranged in the connection section.
- a defined increase in the mass of the joint achieved by this absorber or additional weight has proven to be particularly advantageous in order to avoid the vibrations occurring in some types of vehicles during operation.
- the additional weight By arranging the additional weight in the joint itself, ie close to the connection point of a propeller shaft, the risk is minimized that are caused by the additional weight imbalances.
- Another advantage of the inventive arrangement of an additional weight in the connection portion of a joint is that the additional weight from the outside is not visible and also comes with no other components of the vehicle or the ground in touch. It is therefore not increased by the additional weight of the required space for the joint. There is also no danger that contaminants may catch on the additional weight. Further the additional weight is taken captively in the joint by the arrangement within the Anitatisabschnit- so that there is no risk that this is lost, which may be the case in balancing weights partially.
- a cover is arranged in the connection section, in and / or on which the additional weight is provided.
- a lid closes the joint to prevent ingress of contaminants and leakage of lubricant.
- the additional weight is fixed in the connection section. This is preferably carried out in that the additional weight is jammed and / or latched in the connection section and / or in the cover. So it is conceivable, for example, insert the additional weight in the connection section and the lid and embossing. For this purpose, projections or recesses may be provided at the connection portion, the lid and / or the additional weight, which facilitate jamming or embossing. Alternatively or additionally, it is also possible to weld and / or glue the additional weight in the connection section and / or in the cover.
- the additional weight consists of a material which has a higher specific gravity than the other components of the joint.
- the additional weight may consist of lead, while the other components of the joint consist essentially of sheet steel or plastic. Since there are no special mechanical requirements for the additional weight, this can be made of a comparatively inexpensive material.
- the additional weight is at least approximately rotationally symmetrical and is arranged substantially centered in the outer hub of the joint.
- the additional weight for example, substantially have the contour of a hemisphere or be formed as an optionally stepped cylinder whose one end is hemispherical rounded.
- a propeller shaft having at least one joint of the type mentioned above.
- a propeller shaft preferably has at least one tubular shaft section, which is connected to the connection section of a joint, for example by welding.
- the propeller shaft When the propeller shaft is used as a side shaft, this often includes two joints of the above type, a tubular shaft portion and possibly a rolling displacement unit, which allows axial adjustability.
- the PTO shaft When the PTO shaft is used as a longitudinal shaft in the drive train of a vehicle, this often has two rotatably connected via a trained as constant velocity joint center joint shafts connected to each other, each of the center joint opposite end of each shaft portion a constant velocity fixed joint is arranged. At least one of the joint ke, preferably one of the two outer joints, equipped with an additional weight.
- a propeller shaft used as a longitudinal shaft preferably has at least one, in particular close to the center joint arranged Rollverschiebetician for axial adjustability of the propeller shaft. In principle, however, it is also possible to use at least one sliding joint in the propeller shaft instead of the combination of a fixed joint with a rolling displacement unit.
- the additional weight may extend in regions in the tubular shaft portion which is connected to the joint. This makes it possible, despite the small space within the joint itself provide an additional weight with large mass.
- the additional weight may be designed such that the outer contour of the additional weight is substantially adapted to the inner contour of the connection portion and possibly the cover of the joint, while a extending in the tubular shaft portion of the additional weight may have a smaller diameter, so as to a form annular clearance between the inner contour of the tubular shaft portion and the outer contour of the additional weight.
- connection portion and / or their connection area ie, for example, a weld
- a substantially radially inwardly protruding projection is provided which limits a movement of the additional weight in an axial direction.
- This protrusion can be formed, for example, by an inwardly protruding bead of the weld seam, which connects the connection section of the joint to the tubular waveguide section.
- the additional weight in the connection portion and / or the tubular shaft portion is fixed in a fixed position both in the axial direction and in the direction of rotation.
- the additional weight can then perform no relative movement to the components of the propeller shaft or the joint, which could possibly be detrimental during operation.
- connection section and / or at least part of the tubular shaft section is foamed, for example with mounting foam.
- the mounting foam can also be used to attach the additional weight.
- FIG. 1 shows a longitudinal section through a joint according to a first embodiment of the invention
- Fig. 2 is a longitudinal section through a detail of a joint according to a second embodiment of the invention.
- Fig. 3 is a section through the joint of FIG. 2 along the line IH-III.
- a constant velocity fixed joint 1 is shown, the outer hub 2, inter alia, a partially cylindrical connection portion 3 has.
- the joint 1 is connected in the embodiment of Fig. 1 with a shaft journal 4, which may form the output or input shaft of a transmission or a differential.
- the joint 1 is part of a propeller shaft 5, which is indicated in Fig. 1 by a substantially tubular shaft portion 10 which is connected to the connecting portion 3 of the joint 1.
- the outer hub 2 of the joint 1 in addition to the partially cylindrical connection portion 3 on a non-rotatably embraced another outer hub member 6, in which a plurality formed as counter paths grooves are formed.
- the joint 1 further has an inner hub 7, which is also provided with counter-tracks formed grooves.
- each balls 8 are added, which are guided in a cage 9. As a result, a torque can be transmitted from the inner hub 7 to the outer hub 2 and the hollow shaft 10 connected thereto.
- the inner hub 7 in the embodiment of FIG. 1 has a substantially tubular shape with a central opening.
- the inner surface of this opening of the inner hub 7 and the outer surface of the shaft journal 4 are provided with a corresponding spline 11.
- the shaft journal 4 can thus be inserted non-rotatably into the opening of the inner hub 7 and can be axially fixed there, as will be explained below.
- Shaft journal 4 are mutually associated grooves 12 and 13, respectively. Further, the opening of the inner hub 7 is provided with an insertion bevel 14, the the insertion of the shaft journal 4 in the opening of the inner hub 7 facilitates.
- a retaining ring 15 is used, which preferably has a substantially rectangular cross-section with at least one slope. In its unloaded state, the securing ring 15 protrudes out of the groove 13 at least in sections.
- the securing ring 15 also snaps into the groove 12 of the inner hub 7 as a result of its pretension due to radial expansion. This causes the axial connection between the inner hub 7 and the shaft journal. 4
- 16 may be provided on the shaft journal 4, an additional groove for receiving a sealing ring.
- a mounting groove may be formed, which allows the tool, not shown, for pushing together the inner hub 7 and the shaft journal 4.
- a likewise not shown tool in a disassembly gap between the end face of the inner hub 7 and the diameter of the shaft journal 4 having paragraph are introduced, so that the inner hub 7 from the shaft journal 4 leaves.
- the securing ring 15 is provided with a bevel which comes into contact with an edge of the groove 12 of the inner hub 7 so that the securing ring 15 can be pushed back radially into the groove 13 during disassembly.
- an additional weight 17 is arranged in the connection section 3 of the outer hub 2. This essentially has one cylindrical shape, wherein the shaft journal 4 facing side is provided with an approximately hemispherical projection.
- the additional weight 17 is substantially flush with its outer surface on the inner surface of the connecting portion 3 and nestles on its side facing the shaft journal 4 in a lid 18 which closes the hinge 1 with respect to the tubular shaft portion 10 of the propeller shaft.
- the additional weight 17 is at least substantially rotationally symmetrical and is centered in the connection portion 3 and the lid 18 fitted. In the axial direction, the additional weight 17 is held on the one hand by the cover 18 and on the other hand by a weld 19 between the connecting portion 3 and the tubular shaft portion 10. The weld 19 forms a radially inwardly projecting bead, which fixes the additional weight 17.
- the additional weight 17 is in the illustrated embodiment of a relatively heavy metal, such as lead.
- the other components of the joint 1 have a lower specific gravity than the additional weight 17.
- FIGS. 2 and 3 show a further embodiment of a propeller shaft 5 according to the invention. Similar to the embodiment of FIG. 1, the propeller shaft 5 at least one tubular shaft portion 10 and at least one hinge 1, of which only the connection portion 3 of the outer hub 2 is shown.
- connection section 3 a Tilger- or additional weight 17 ' is arranged, which extends in certain areas into the tubular shaft portion 10 hineinerstreckt.
- the additional weight 17 ' In the area in which the weld 19 is provided for connecting the attachment portion 3 with the tubular shaft portion 10 is, the additional weight 17 'has a reduced outer diameter, so that between the inner wall of the tubular shaft portion 10 and the outer wall of the additional weight 17', an annular space is formed.
- the additional weight 17 is fixed by an embossment in the connecting section 3.
- the connecting section 3 of the joint 1 is locally pressurized from the outside, so that the connecting section 3 curves in regions radially inwards and forms projections 20. These engage in corresponding recesses on the additional weight 17 'The pressurization can also take place in such a way that the depressions in the additional weight 17' are only generated by the penetration of the projections 20.
- the additional weight 17' is also fixed with a mounting foam 21 within the connection section 3 or the tubular shaft section 10.
- a mounting foam 21 within the connection section 3 or the tubular shaft section 10.
- a damping element is provided in the tube of the propeller shaft. This brings with it, among other things, a difficult assembly.
- the absorber mass is brought as close as possible to the transmission / rear axle transmission, the absorber and joint form a fully assembled unit which can be delivered completely to the assembly line. This eliminates assembly steps and the possibility that the absorber can migrate in the pipe.
- the absorber by its arrangement also fulfills the task of sealing the tube and / or the bending angle limit in the joint.
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112008002695T DE112008002695A5 (en) | 2007-07-26 | 2008-07-25 | Joint and drive shaft hereby |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007035469 | 2007-07-26 | ||
DE102007035469.1 | 2007-07-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2009012768A1 true WO2009012768A1 (en) | 2009-01-29 |
Family
ID=40044049
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2008/001208 WO2009012768A1 (en) | 2007-07-26 | 2008-07-25 | Articulation and articulated shaft comprising the same |
Country Status (2)
Country | Link |
---|---|
DE (2) | DE102008031395A1 (en) |
WO (1) | WO2009012768A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013102253A1 (en) * | 2013-03-07 | 2014-09-11 | Gkn Driveline International Gmbh | Drive shaft assembly for a motor vehicle |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1181560B (en) * | 1961-03-01 | 1964-11-12 | Daimler Benz Ag | Damper for a tubular cardan shaft for the transmission of a drive torque in vehicles, especially in motor vehicles |
US5326324A (en) * | 1991-11-25 | 1994-07-05 | Tokai Rubber Industries, Ltd. | Dynamic damper for hollow drive shaft |
US6015350A (en) * | 1997-12-03 | 2000-01-18 | Dana Corporation | Collapsible vehicle driveshaft |
FR2882013A1 (en) * | 2005-02-17 | 2006-08-18 | Shaft Form Engineering Gmbh | TRANSMISSION SHAFT AND HOMOCINETIC SEAL |
US20070105461A1 (en) * | 2005-11-10 | 2007-05-10 | James Lyon | Propeller shaft assembly with energy absorbing material |
-
2008
- 2008-07-02 DE DE102008031395A patent/DE102008031395A1/en not_active Ceased
- 2008-07-25 DE DE112008002695T patent/DE112008002695A5/en not_active Withdrawn
- 2008-07-25 WO PCT/DE2008/001208 patent/WO2009012768A1/en active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1181560B (en) * | 1961-03-01 | 1964-11-12 | Daimler Benz Ag | Damper for a tubular cardan shaft for the transmission of a drive torque in vehicles, especially in motor vehicles |
US5326324A (en) * | 1991-11-25 | 1994-07-05 | Tokai Rubber Industries, Ltd. | Dynamic damper for hollow drive shaft |
US6015350A (en) * | 1997-12-03 | 2000-01-18 | Dana Corporation | Collapsible vehicle driveshaft |
FR2882013A1 (en) * | 2005-02-17 | 2006-08-18 | Shaft Form Engineering Gmbh | TRANSMISSION SHAFT AND HOMOCINETIC SEAL |
US20070105461A1 (en) * | 2005-11-10 | 2007-05-10 | James Lyon | Propeller shaft assembly with energy absorbing material |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013102253A1 (en) * | 2013-03-07 | 2014-09-11 | Gkn Driveline International Gmbh | Drive shaft assembly for a motor vehicle |
Also Published As
Publication number | Publication date |
---|---|
DE102008031395A1 (en) | 2009-07-02 |
DE112008002695A5 (en) | 2010-07-15 |
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