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WO2018108203A1 - Liaison arbre-moyeu comprenant une zone de centrage et une chaîne cinématique de véhicule hybride (p2) - Google Patents

Liaison arbre-moyeu comprenant une zone de centrage et une chaîne cinématique de véhicule hybride (p2) Download PDF

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Publication number
WO2018108203A1
WO2018108203A1 PCT/DE2017/100971 DE2017100971W WO2018108203A1 WO 2018108203 A1 WO2018108203 A1 WO 2018108203A1 DE 2017100971 W DE2017100971 W DE 2017100971W WO 2018108203 A1 WO2018108203 A1 WO 2018108203A1
Authority
WO
WIPO (PCT)
Prior art keywords
shaft
hub
toothing
hub connection
drive train
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
Application number
PCT/DE2017/100971
Other languages
German (de)
English (en)
Inventor
Marcus Hoppe
Torsten PIEPER
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schaeffler Technologies AG and Co KG
Original Assignee
Schaeffler Technologies AG and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Schaeffler Technologies AG and Co KG filed Critical Schaeffler Technologies AG and Co KG
Priority to DE112017006257.8T priority Critical patent/DE112017006257A5/de
Publication of WO2018108203A1 publication Critical patent/WO2018108203A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
    • F16D1/10—Quick-acting couplings in which the parts are connected by simply bringing them together axially
    • 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
    • F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
    • F16D1/10—Quick-acting couplings in which the parts are connected by simply bringing them together axially
    • F16D1/101—Quick-acting couplings in which the parts are connected by simply bringing them together axially without axial retaining means rotating with the coupling
    • 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
    • F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
    • F16D1/10—Quick-acting couplings in which the parts are connected by simply bringing them together axially
    • F16D2001/103—Quick-acting couplings in which the parts are connected by simply bringing them together axially the torque is transmitted via splined connections

Definitions

  • the invention relates to a shaft-hub connection for an interface between a separating clutch and a drive train, in particular for connecting an electric motor, with a shaft / intermediate shaft and a hub axially slidable on the shaft, wherein the shaft and the hub form fit over a Gearing rotatably connected to each other. Furthermore, the invention relates to a hybrid vehicle powertrain with that shaft-hub connection. Furthermore, the invention relates to a P2 hybrid vehicle drive train with that shaft-hub connection.
  • DE 10 2015 219251 A1 discloses a hub for a shaft-hub connection, in particular for a drive train of a motor vehicle, with an inner profile, in particular an inner toothing, for interlocking cooperation with an outer profile, in particular an external toothing, one rotatable about a rotation axis Shaft, and a receiving space for receiving a clamping means for reducing play between the inner profile and the outer profile, wherein the inner profile is partially broken from the receiving space, wherein the receiving space at least one point radially inner hub inside arranged with a radially outer hub outside connects by means of at least one arranged in the axial direction between a first hub end and a second hub end opening continuously.
  • a first centering region is present at a proximal, axial end of the toothing. Since when pushing the hub of this first centering area receives the hub, it is avoided that the hub is eccentrically pressed onto the shaft. In an eccentric connection between the shaft and the hub damage to the teeth can be caused both during pressing and during operation by a flexing movement of the shaft. Therefore, it is advantageous to ensure centering of the shaft-hub connection.
  • a second centering region is present at a distal, axial end of the toothing.
  • the hub is arranged centered at the two axial ends of the toothing, so that an axial offset in the teeth is safely excluded. Precisely because of a wear stress of the teeth can be prevented.
  • a shaft-side toothing part and / or a hub-side toothing part of the toothing can / have a toothed bevel. It is thereby achieved that the shaft-side toothing part is braced with the hub-side toothing part when pushing and thus creates a particularly backlash-free shaft-hub connection.
  • a male part of the toothing ie the shaft-side toothing part
  • a toothed bevel is accurately manufactured.
  • the female part of the toothing, so the hub-side toothing part is preferably formed with a straight toothing, since it is often made by broaching and a straight toothing is cheaper to manufacture.
  • the toothing can also be designed such that a toothed bevel is present both on the shaft-side toothing part and on the hub-side toothing part.
  • the helix angles are preferably formed in opposite directions, so that a tensioning of the shaft with the hub is made possible.
  • the two helix angles are selected so that the sum of the amounts of helix angle is sufficiently large to create a strain, but only so large that the hub can be pushed / pressed onto the shaft.
  • the helix angles can also be carried out in the same direction if the difference between the two helix angles, that is to say the angle determining the bracing, is chosen such that the hub can be arranged on the shaft in a particularly clearance-free / braced manner.
  • the helix angle of the toothed bevel is formed only so large that the hub pushed onto the shaft / pressed and clamped with her / can be clamped without the material of the shaft and the Hub is loaded beyond the elastic range, so that damage to the teeth can be avoided.
  • the helix angle is in the range between 10 and 30 minutes of arc, ie between one-twelfth and one-half degrees. More preferably, the helix angle is 15 to 25 minutes of arc. Very preferably, the helix angle is 17 to 18 minutes of arc.
  • a preferred embodiment is characterized in that the shaft and the hub are releasably connected to each other.
  • the shaft-hub connection can advantageously be easily assembled and / or disassembled.
  • the helix angle must not be too large, because otherwise the components could no longer be separated from each other without destroying each other.
  • the shaft-hub connection is designed without play.
  • a particularly smooth running of the hub and the shaft can be ensured because the hub and the shaft can not move relative to each other.
  • a helix angle of the toothed bevel is configured as a function of the length of the toothing and of a toothing clearance and / or a tooth pitch.
  • the toothed bevel may only have a very small helix angle.
  • the helix angle of the toothing part with the toothing slope should correspond approximately to the Arkustanges the difference between the tooth clearance and the length of the toothing.
  • a slightly overlying angle can be selected.
  • the first centering region connects axially to a bearing point for the rotatable attachment of the shaft to a housing-fixed component.
  • the bearing / roller bearing provides a stop for limiting the axial displacement, so that the toothing is less heavily loaded when pressing on / pushing the hub.
  • the object is achieved in that a hybrid vehicle drive train of a motor vehicle with a shaft-hub connection according to the invention is used.
  • a P2 hybrid vehicle drive train of a motor vehicle with a shaft-hub connection according to the invention is installed.
  • a hybrid module is placed between the engine and the transmission.
  • a P2 arrangement is one of the most common arrangements for a hybrid module.
  • the invention relates to a backlash-free shaft-hub connection for a P2 hybrid vehicle powertrain / P2 hybrid for the connection of an electric motor via a clutch KO.
  • the shaft-hub connection is suitable for coaxial P2 hybrids as well as for axis-parallel P2 hybrids.
  • the clutch also serves to accommodate a rotor of the electric motor.
  • the clutch also serves as a carrier for the belt pulley.
  • 1 is a perspective view of a shaft-hub connection according to the invention with a hub shown cut
  • 2 is a side view of a shaft and the cut hub of the shaft-hub connection in a non-assembled state
  • FIG. 3 is a view comparable to FIG. 2 of the shaft-hub connection with the shaft and with a hub partially pushed onto the shaft, FIG.
  • Fig. 4 is a comparable to Fig. 3 representation of the shaft-hub connection with the almost completely pushed onto the shaft hub
  • Fig. 5 is a comparable to FIG. 4 representation of the fully assembled shaft-hub connection.
  • a shaft-hub connection 1 which serves as an interface between a separating clutch and a drive train.
  • the shaft-hub connection 1 has a shaft 2 and an axially slidable on the shaft 2 hub 3.
  • the shaft 2 and the hub 3 are positively connected via a toothing 4 rotatably connected to each other.
  • the shaft-hub connection 1 has at least one centering region 5, which connects axially to the toothing 4, the shaft 2 and the hub 3 being aligned coaxially with one another by the centering region 5.
  • the shaft 2 is rotatably connected to the drive train, not shown.
  • the shaft 2 is formed so as to taper toward its distal end.
  • a first centering region 6 adjoins and at the distal, axial end of the toothing, a second centering region 7 adjoins.
  • the first centering region 6 is arranged on the outer diameter of the shaft 2 has a flat surface.
  • the first centering area 6 on the shaft 2 has a larger outer diameter than the second centering area 7 on the shaft 2.
  • a shaft-side toothing part 8 engages in a hub-side toothing part 9, so that the toothing 4 is formed.
  • the hub 3 is designed so that it can be pushed onto the shaft 2 / pressed. At its end, which comes into contact with the shaft 2 when pushed first, it has an inner diameter which is measured at the outer edge of the teeth, which is matched to the outer diameter of the first centering region 6 on the shaft 2 and approximately corresponds to it , At its other end, it has an inner diameter which is matched to the outer diameter of the second centering region 7 on the shaft 2 and approximately corresponds to it.
  • the toothing 4 is formed as a spline or as involute toothing with a number of teeth between 20 and 35 teeth.
  • the storage area 10 is prepared to receive an inner ring 1 1 of a rolling bearing 12, by means of which the shaft 2 is fastened to a housing (not shown).
  • a hub-facing surface of the rolling bearing 12 serves as a stop surface 13 for the hub 3, which limits the axial displacement of the hub 3.
  • a circumferential groove 14 is introduced between the second centering region 7 and the shaft-side toothing part 8 of the toothing 4, which has approximately the same diameter as the root diameter of the shaft-side toothing part 8.
  • the shaft-hub connection 1 is shown in the unassembled state. It can be clearly seen that the hub 3 is toothed over its entire axial length. About one third of the hub-side toothing 9 has a larger diameter than the other part of the hub 3. This first third is in the mounted state at the first centering region 6 on the shaft 2 and the toothing 15 of the shaft 2. The second third is in the mounted state with the shaft side gear part 8 in engagement. Since the toothing 4 is not formed up to the distal end of the shaft 2 on the shaft 2, a part of the hub-side toothing rests on the groove 14 and on the second centering region 7. By means of the support on the two centering regions 6, 7, it is thus ensured that the hub 3 is arranged concentrically to the shaft 2.
  • the hub 3 shows the partially assembled state of the shaft-hub connection 1.
  • the hub 3 is already pushed onto the shaft 2 with the first third. Since the hub 3 has a larger diameter at the pushed-on portion than at the engaging toothed part 9, the hub 3 is still slightly displaceable radially relative to the shaft 2.
  • the inner diameter of the hub 3 bears against the second centering region 7, and thus the hub 3 is guided during further pushing in such a way that it is centered relative to the shaft 2.
  • the shaft-side and the hub-side toothing part 8, 9 engage with their teeth in the toothing 4 in one another.
  • the shaft-hub connection 1 is shown in a fully assembled state.
  • the hub 3 abuts with its axial end surface, which is first pushed onto the shaft 2, on the stop surface 13 of the rolling bearing 12 at.
  • the toothing 4 of the shaft-hub connection 1 is designed so that the shaft-side or the hub-side toothing part 8, 9 is formed with a toothed bevel.
  • the other of the two gearing parts 8, 9 is straight-toothed educated.
  • the toothed bevel is formed with a very small helix angle, so that the hub 3 is still pushed onto the shaft 2 and is jammed in the assembled state with the shaft 2 against the elasticity of the materials / clamped.
  • the helix angle is less than half a degree and is about 17 arc minutes.
  • the helix angle is to be selected depending on the length of the toothing 4 and the toothing clearance. In order to obtain a backlash-free connection, the helix angle is selected such that it corresponds to the arctangent of the difference between the tooth clearance and the length of the toothing 4. Due to the geometric relationships, the hub 3 is then press-fitted onto the shaft 2. However, the helix angle is only chosen so large that the shaft 2 and the hub 3 are not deformed beyond the elastic range of the materials.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mounting Of Bearings Or Others (AREA)

Abstract

L'invention concerne une liaison arbre-moyeu (1) pour une interface entre un embrayage de coupure et une chaîne cinématique, comprenant un arbre (2) et un moyeu pouvant coulisser axialement sur cet arbre (2), l'arbre (2) et le moyeu (3) étant reliés l'un à l'autre par complémentarité de forme de manière solidaire en rotation par l'intermédiaire d'une denture (4), au moins une zone de centrage (5) étant raccordée axialement à la denture (4), cette zone de centrage étant conçue pour aligner l'arbre (2) et le moyeu (3) coaxielement. L'invention concerne également une chaîne cinématique de véhicule hybride d'un véhicule à moteur pourvu d'une telle liaison arbre-moyeu (1). L'invention se rapporte en outre à une chaîne cinématique de véhicule hybride P2 dotée d'une telle liaison arbre-moyeu.
PCT/DE2017/100971 2016-12-14 2017-11-15 Liaison arbre-moyeu comprenant une zone de centrage et une chaîne cinématique de véhicule hybride (p2) Ceased WO2018108203A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112017006257.8T DE112017006257A5 (de) 2016-12-14 2017-11-15 Welle-Nabe-Verbindung mit einem Zentrierbereich und (P2-) Hybridfahrzeugantriebsstrang

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016124369.8 2016-12-14
DE102016124369.8A DE102016124369A1 (de) 2016-12-14 2016-12-14 Welle-Nabe-Verbindung mit einem Zentrierbereich und (P2-)Hybridfahrzeugantriebsstrang

Publications (1)

Publication Number Publication Date
WO2018108203A1 true WO2018108203A1 (fr) 2018-06-21

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2017/100971 Ceased WO2018108203A1 (fr) 2016-12-14 2017-11-15 Liaison arbre-moyeu comprenant une zone de centrage et une chaîne cinématique de véhicule hybride (p2)

Country Status (2)

Country Link
DE (2) DE102016124369A1 (fr)
WO (1) WO2018108203A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024039614A1 (fr) * 2022-08-15 2024-02-22 EKU Power Drives GmbH Outil pour faire tourner manuellement une pompe à mouvement alternatif
US12313064B2 (en) 2022-08-15 2025-05-27 EKU Power Drives GmbH Reciprocating pump turning and barring tool

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4019119A1 (de) * 1990-06-12 1992-01-02 Mannesmann Ag Zahnverbindung
US20060075838A1 (en) * 2002-05-24 2006-04-13 Uwe Hacker Series of shafts and method for manufacturing the same
DE102005059018A1 (de) * 2005-12-08 2007-06-14 Sew-Eurodrive Gmbh & Co. Kg Welle-Nabe-Verbindung und Elektromotor
WO2008022625A1 (fr) * 2006-08-23 2008-02-28 Neumayer Tekfor Holding Gmbh Ensemble de liaison entre un tourillon d'arbre et une pièce d'articulation
US20090186709A1 (en) * 2005-08-08 2009-07-23 Honda Motor Co., Ltd. Mechanism for Transmitting Power Between Shaft and Hub
US20150125269A1 (en) * 2012-04-13 2015-05-07 Snecma Coupling of shafts using variable-profile splines
DE102015219251A1 (de) 2014-10-09 2016-04-14 Schaeffler Technologies AG & Co. KG Nabe für eine Welle-Nabe-Verbindung

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4019119A1 (de) * 1990-06-12 1992-01-02 Mannesmann Ag Zahnverbindung
US20060075838A1 (en) * 2002-05-24 2006-04-13 Uwe Hacker Series of shafts and method for manufacturing the same
US20090186709A1 (en) * 2005-08-08 2009-07-23 Honda Motor Co., Ltd. Mechanism for Transmitting Power Between Shaft and Hub
DE102005059018A1 (de) * 2005-12-08 2007-06-14 Sew-Eurodrive Gmbh & Co. Kg Welle-Nabe-Verbindung und Elektromotor
WO2008022625A1 (fr) * 2006-08-23 2008-02-28 Neumayer Tekfor Holding Gmbh Ensemble de liaison entre un tourillon d'arbre et une pièce d'articulation
US20150125269A1 (en) * 2012-04-13 2015-05-07 Snecma Coupling of shafts using variable-profile splines
DE102015219251A1 (de) 2014-10-09 2016-04-14 Schaeffler Technologies AG & Co. KG Nabe für eine Welle-Nabe-Verbindung

Also Published As

Publication number Publication date
DE102016124369A1 (de) 2018-06-14
DE112017006257A5 (de) 2019-10-02

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