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WO2009027175A1 - Dispositif d'arrêt destiné à un arbre de changement de vitesse d'une boîte de vitesses - Google Patents

Dispositif d'arrêt destiné à un arbre de changement de vitesse d'une boîte de vitesses Download PDF

Info

Publication number
WO2009027175A1
WO2009027175A1 PCT/EP2008/060134 EP2008060134W WO2009027175A1 WO 2009027175 A1 WO2009027175 A1 WO 2009027175A1 EP 2008060134 W EP2008060134 W EP 2008060134W WO 2009027175 A1 WO2009027175 A1 WO 2009027175A1
Authority
WO
WIPO (PCT)
Prior art keywords
locking
locking device
cap
switching
selector shaft
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/EP2008/060134
Other languages
German (de)
English (en)
Inventor
Klaus Krämer
Volker Pechtl
Klaus Wesselmann
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.)
IHO Holding GmbH and Co KG
Original Assignee
Schaeffler 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 KG filed Critical Schaeffler KG
Publication of WO2009027175A1 publication Critical patent/WO2009027175A1/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
    • F16H—GEARING
    • F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
    • F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
    • F16H63/30—Constructional features of the final output mechanisms
    • F16H63/38—Detents
    • 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
    • F16H—GEARING
    • F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
    • F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
    • F16H63/30—Constructional features of the final output mechanisms
    • F16H63/34—Locking or disabling mechanisms
    • 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
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H2057/0056—Mounting parts arranged in special position or by special sequence, e.g. for keeping particular parts in his position during assembly

Definitions

  • the invention relates to a locking device for fixing, securing and / or force guidance when inserting a switching and / or selecting position of a switching shaft in a switching device for a arranged in a housing gearbox of a motor vehicle during driving, wherein the locking device comprises a locking member which the shift shaft locked by active engagement in the switching shaft or in an associated with the switching shaft intermediate member, and wherein the locking device has a locking device which is designed to block the locking member,
  • Such locking devices are u.a. used to secure or set an engaged gear while driving.
  • the document DE 19540 039 A1 discloses so-called ball catches or locking bolts as a locking device, wherein the ball catch has a displaceably arranged spherical cap with a ball running on a locking contour of a switching shaft in Wähl- or switching movements and ensures in this way a locking of the shift shaft, so that when driving an unintentional jumping out of the aisle is prevented.
  • the document EP 1 273 832 A1 discloses a switching device for a motor vehicle transmission, comprising means for generating a resistance to the movement of a shift lever, which forms part of a locking device.
  • this switching device has the effect that during rapid movements of a shift hebeis a higher resistance is opposed, so that, for example, an effective reverse lock can be realized.
  • the documents DE 44 41 138 C2 and EP 0 940 606 B1 relate to so-called transport and mounting fuses for transmissions, the disclosed devices each having a fixing pin, which is manually operable and in a locked position, the shift shaft of the transmission against switching and Wählzien locks.
  • transport and assembly fuses are used to drive the movable parts of a transmission e.g. when setting it for the first time, to connect an external gear shift device, to bring it into a defined position during maintenance or repair and to fix it, so that no unintentional switching or selection movements are possible.
  • the switching device comprises at least two shift forks, each comprising a latching mechanism which mechanically via a
  • Neutral position is fixed when the second shift fork has been moved by a certain displacement from its neutral position.
  • the invention has for its object to provide a locking device for a shift shaft in a transmission that is versatile.
  • a locking device is proposed in a switching device for a transmission, which is designed constructively, while driving or to implement one, several or all of the following functions in the intended use:
  • a fuse against a faulty circuit such as a reverse gear lock or a parking lock.
  • the implementation of said functions is hereinafter referred to as locking the locking device.
  • the transmission is accommodated in a housing, wherein the housing optionally additionally comprises a switching dome housing
  • the locking device has a locking member, which is designed and / or arranged structurally, so that the locking member, the shift shaft or an intermediate member preferably in a kinematic chain, which couples the locking member to the shift shaft, locked.
  • the locking device shows a locking device, wherein the locking device is designed to lock the locking member.
  • the locking device is designed for manual and / or external energy-free and / or direct actuation and that, when the locking device is locked, the locking device forms a transport and / or assembly safeguard for the switching device and / or for the transmission.
  • the locking device is suitable and / or formed and / or arranged to lock the shift shaft in the transmission indirectly via further intermediate links.
  • a consideration of the invention is to combine the functions of locking the shift shaft while driving and the locking of the shift shaft in transport, assembly or repair operation in a common assembly, so that on the one hand components and the other through holes in the Housing of the transmission can be saved. Overall, thus, a saving in manufacturing costs while simplifying the construction can be achieved.
  • the manual operation emphasizes the fact that the lock is not automatically performed, but takes place, for example, as a first step in a repair, installation of the transmission or the like.
  • External energy-free actuation means that, on the transmission side, there is no actuator for converting external energy, e.g. of electrical energy is provided for the actuation, but the operation is performed by muscle power. After a repair or the like is done very rarely, it also does not make economic sense to integrate a costly, external energy-driven actuator for blocking the locking device in the transmission.
  • a direct operation describes an operation in the area of the transmission and in particular outside the other range of use of the driver of a vehicle in normal driving.
  • the locking device is arranged directly on the transmission and / or on the transmission housing. It is particularly preferred that the locking device during normal driving is not lockable.
  • one, several or all switching shafts of the switching device is fixed by the locking device via the locking member, in particular such that no unintentional switching and / or Wählmony can be performed.
  • the switching shaft (s) are thereby blocked relative to a rotation and / or longitudinal displacement relative to their own axis.
  • the locking member is designed as a movable on the shift shaft or on the intermediate member lying runner device.
  • the rotor device is designed in particular such that it moves away during selection or switching movements a running range of the switching shaft and / or the intermediate member.
  • the slider device as a sliding or rolling finger and - particularly preferably - realized as a ball catch or Rastierbolzen.
  • the intermediate member is in preferred embodiments as a latching section, e.g. formed on a latching plate or on a Rastierhülse, wherein the latching portion forms the running region for the rotor device.
  • the rotor device and the latching section are designed and positioned relative to one another in such a way that the rotor device can engage in the latching section for defining aisles, in particular in a plurality of latching positions. Between the latching positions, the latching section is preferably equipped with ramp areas which contribute to an intended, comfort-increasing switching-force increase.
  • the locking device may preferably occupy exactly two switching positions, wherein the locking device between a locking position and a release position is manually switchable, and wherein the locking member is locked in the locked position and released in the release position.
  • the shift shaft and / or the transmission is locked in the locked position and released in the release position for the usual switching and Wählmonyen while driving.
  • the locking device is fixed positively in the locking and / or release position.
  • a receiving device arranged fixed to the housing is provided, which is designed, for example, as a sleeve pressed into the housing or as a connecting piece integrally formed on the housing.
  • a locking cap is placed as a locking device, which is together with a locking member, which preferably extends at least partially in the receiving device, from a release position into a locked position can be transferred.
  • the blocking cap has a cap region, which preferably serves as a peripheral cap region, but alternatively as cap element interrupted in the direction of rotation.
  • pen Scheme with one or more sections, is formed, the overreaching or receiving device.
  • the cap area and the receiving device together form a mechanical guide, which is structurally designed such that the blocking cap can only be transferred from the release position into the blocking position and / or in the opposite direction by a coupled and preferably positively guided linear rotary movement of the blocking cap.
  • a rotational movement of the locking cap is absolutely necessary in order to release the locking cap from the locking and / or release position and / or to unlock.
  • the cap region is held in the release position and / or in the blocking position in a form-fitting manner against the linear direction of the linear rotary movement from the release position into the blocking position.
  • the locking cap is spring-loaded and in particular such that it is biased by the housing against the linear direction of the linear rotary movement and is pushed away.
  • the cap region and the receiving device together form a so-called bayonet closure, the bayonet sleeve having two closure positions, specifically for the blocking position and for the release position of the blocking cap.
  • this is designed as a device for releasably connecting the blocking cap and the receiving device in the direction of its longitudinal axis.
  • the cap region has a particular groove, slot or channel-shaped guide into which engages a latching contour, in particular a latching lug of the receiving device.
  • the guide is designed as a sliding guide and the locking contour as a sliding block, which is forcibly guided on both sides of the slide guide to implement a desired transfer function in the form of coupled rotational linear motion. Because of the guiding contour in the cap area is introduced, the production-technically complex portion of the guide is integrated in the locking cap, which can be manufactured as a mass-produced cheap.
  • the receiving device requires only the locking contour, which is also inexpensive manufacturable.
  • the blocking cap on the inside has the latching contour and the receiving device has the guide for the latching contour on the outside.
  • the guide comprises a C-shaped holding section, wherein the ends of the "C” define the blocking position or release position of the latching lug.
  • “C” is preferably arranged standing in the linear direction so that the ends are in the form of positive receptacles are formed against the linear direction.
  • a possible implementation of the positive connection is given by the integration of retaining edges in the holding section, which must be overcome by a rotational movement of the locking cap with a Linearschulsan- part against the spring force, so that the locking contour can leave the blocking and / or release position.
  • the guide has an insertion portion into which the locking lug is inserted during assembly of the locking cap.
  • the insertion portion is preferably formed as a in the axial direction of the locking cap or the receiving device just extending slot, which merges in particular in the release position of the locking lug in the holding portion.
  • the locking cap is sealed against the receiving device with a seal, in particular a rubber seal oil tight.
  • the cap region is arranged outside of the transmission-side sealing region, so that contamination in the cap region can not penetrate into the housing.
  • the rubber seal is formed as a radially encircling O-ring, which is inserted in a radially inwardly open groove of the locking cap, wherein a receiving device circumferential cylindrical surface forms the counter-sealing surface.
  • the receiving device is shaped so that the locking device is oil-tight in the release position and in the blocking position is designed as a venting device, so that the locking device receives a further function.
  • the locking cap is formed integrally with the locking member, wherein the locking member is preferably realized as a bolt which extends in the axial direction in the middle of the locking cap in the direction of the housing. It is possible that the locking cap is formed of metal or plastic.
  • Figure 1 is a three-dimensional, schematic view of a closure portion of a locking device as a first embodiment in the locked position
  • Figure 2 is a three-dimensional, schematic view of the closure portion in Figure 1 in the release position
  • Figure 3 is a three-dimensional, schematic view of the closure portion in Figures 1 and 2 in the mounting position;
  • Figure 4 is a three-dimensional, schematic sectional view of the closure portion in Figures 1 to 3 in the release position in the release position;
  • Figure 5 is a schematic sectional view of a combined
  • Locking / locking device with the closure portion of Figures 1 to 4 as a second embodiment of the invention.
  • the same or corresponding parts are provided in the figures with the same or corresponding reference numerals.
  • FIG. 1 shows, in a schematic three-dimensional representation, a section of a blocking device 1 as a first exemplary embodiment of the invention, wherein only the closure section of the blocking device 1 is shown in FIG.
  • a cylindrical sleeve 2 is fixed to a housing, not shown, of a transmission, also not shown, and forms a through hole 3 from a housing outer side to a housing-side of the housing.
  • the sleeve 2 is formed in the illustrated, simplest embodiment as a hollow cylinder.
  • a locking cap 4 On the sleeve 2, a locking cap 4 is placed, which engages over the sleeve 2 in the blocking position shown in Figure 1 for the most part.
  • the blocking cap 4 is formed in the coarse form as a rotationally symmetrical cup.
  • the cap base 5 is realized as a closed bottom, on which - also formed in coarse form as a hollow cylinder - a cap portion 6 connects, which engages over the sleeve 2.
  • the inner diameter of the locking cap 4 and the cap portion 6 and the outer diameter of the sleeve 2 are chosen so that the locking cap 4 is formed in a linear direction 7 relative to the sleeve 2 slidably.
  • Locking cap 4 and sleeve 2 form in the cap area 6 together a slide guide 8, wherein on the sleeve 2, a locking cam 9 is arranged as a sliding block, which is guided in a guide slot 10 in the cap portion 6 throughout two sides.
  • the guide slot 10 has in a holding portion 11 a mirror-inverted in Figure 1 C-shaped course, wherein in the figure 1 ge Service- th locking position the locking cam 9 is arranged at a first free end 12 of the C-shaped holding portion.
  • the blocking cap 4 In this blocking position, the blocking cap 4 is pushed over the sleeve 2 as far as possible, so that a blocking element in the form of a locking pin 13 in the direction of the not shown drive is maximally extended.
  • the locking cap 4 is integrally connected to the locking pin 13, wherein the element formed jointly with respect to the sleeve 2 is biased so that the locking pin 13 of the transmission, ie against the linear direction 7, is pushed away.
  • the first free end 12 of the holding section 11 is designed so that a retaining edge against the linear direction 7 and thus against the spring force must be overcome to release the blocking position.
  • the locking cap 4 and at the same time the locking pin 13 is held in a form-fitting manner in the locking position via the cap region 6.
  • FIG. 2 shows the closure section of the locking device 1 in FIG. 1 in the release position, wherein the release position has been achieved by a coupled linear movement or two counter-rotating screw movements of the locking cap 4 together with the locking pin 13.
  • the coupled linear movement takes place, on the one hand, against the linear direction 7 and, on the other hand, in the direction of rotation about the locking pin 13.
  • the locking cam 9 is now located on the second free end 14 of the holding section 11, this area being designed such that the locking cam 9 is held there form-fitting.
  • the release position shown in Figure 2 the locking pin 13 is retracted compared to the locking position in Figure 1 against the linear direction 7, so that the transmission, not shown, is released.
  • FIG. 4 illustrates a cross section along the linear direction 7 through the arrangement in FIGS. 1 to 3, wherein once again the cylindrical shape of the sleeve 2 can be seen. Also, the one-piece transition from locking pin 13 into the locking cap 4 can be seen. The transition can - depending on the choice of material - a cohesive, positive or non-positive connection be, alternatively - in particular, when the locking cap 4 is made of plastic - the locking cap 4 together with locking pin 13 is cast or injected in one piece.
  • the locking cap 4 has a circumferential formation, which radially inner side forms a circumferential groove 16, in which an O-ring 17 is housed, which seals the locking cap 4 relative to the sleeve 2.
  • the groove 16 is preferably arranged so that the cap portion 6, which carries the guide slot 10, outside the sealed with the O-ring 17, housing interior gear portion is arranged.
  • the cap portion 6 forms a first and the O-ring a second measure against contamination in the transmission.
  • FIG. 5 shows a highly schematic and not to scale an embodiment of a locking device 23 with a locking device 1, which - analogous to Figures 1 to 4 - a locking cap 4 and a locking pin 13, which are arranged fixed relative to a sleeve 2 by means of a sliding guide 8 are.
  • the sleeve 2 is pressed in the embodiment shown in Figure 5 in the housing 18 of a transmission, not shown.
  • Gear inside a ball catch 19 is arranged, which descends via a rotatably mounted ball 20 a contour of a locking plate 21 shown schematically, wherein the locking plate 21 is rigidly connected to a non-illustrated switching shaft.
  • the ball catch 19 is used to latch into the latching plate 21 when a gear is engaged and to build up an initial resistance when shifting to a next gear.
  • the ball catch 19 is supported for this purpose via a compression spring 22 against the locking cap 4, so that the ball catch 19 is pressed or biased in the linear direction 7.
  • Ball catch 19 and locking pin 13 are arranged in alignment with each other.
  • the ball catch 19 has a free travel, which is sufficient to the to descend through the locking plate 21 formed height contour. However, as soon as the blocking cap 4 is transferred into the blocking position via said linear rotary movement, the travel path of the ball catch 19 in or against the linear direction 7 is minimized, so that the ball catch 19 is locked in an extended state, as shown in FIG Figure 5 is shown. Characterized in that the extended and locked ball catch 19 positively engages in a recess of the locking plate 21, is also a (not shown) switching shaft, which is rigidly connected to the latching plate 21, blocked by the locking device 1.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gear-Shifting Mechanisms (AREA)

Abstract

Des dispositifs d'arrêt sont utilisés dans des dispositifs de changement de vitesse notamment pour bloquer ou immobiliser pendant la conduite une vitesse enclenchée. L'objectif de l'invention est de créer un dispositif d'arrêt pour un arbre de changement de vitesse d'une boîte de vitesses présentant de multiples possibilités d'utilisation. Cet objectif est atteint grâce à un dispositif d'arrêt (23) utilisé à des fins d'immobilisation, de blocage et/ou de guidage de force pendant la conduite lors de l'enclenchement d'une position de changement de vitesse et/ou de sélection d'un arbre de changement de vitesse dans un dispositif de changement de vitesse destiné à une boîte de vitesses de véhicule automobile placée dans un carter (18), ce dispositif d'arrêt présentant un élément d'arrêt (19) qui arrête l'arbre de changement de vitesse en venant en prise avec celui-ci ou avec un élément intermédiaire (21) relié à celui-ci. Le dispositif d'arrêt (23) présente par ailleurs un système de blocage (1) servant à bloquer l'élément d'arrêt (19), ce système de blocage (1) étant conçu pour être actionné manuellement et/ou sans énergie externe. Lorsque le système de blocage (1) est en position de blocage, le dispositif d'arrêt (23) constitue un système de sécurité pour le transport et/ou le montage du dispositif de changement de vitesse et/ou de la boîte de vitesses.
PCT/EP2008/060134 2007-08-28 2008-08-01 Dispositif d'arrêt destiné à un arbre de changement de vitesse d'une boîte de vitesses Ceased WO2009027175A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007040471.0 2007-08-28
DE200710040471 DE102007040471A1 (de) 2007-08-28 2007-08-28 Arretiervorrichtung für eine Schaltwelle in einem Getriebe

Publications (1)

Publication Number Publication Date
WO2009027175A1 true WO2009027175A1 (fr) 2009-03-05

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ID=40044107

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/060134 Ceased WO2009027175A1 (fr) 2007-08-28 2008-08-01 Dispositif d'arrêt destiné à un arbre de changement de vitesse d'une boîte de vitesses

Country Status (2)

Country Link
DE (1) DE102007040471A1 (fr)
WO (1) WO2009027175A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009153119A3 (fr) * 2008-06-19 2010-02-18 Schaeffler Kg Dispositif de fixation de montage et de transport pour un mécanisme de changement de vitesses d'une transmission

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014202073A1 (de) 2014-02-05 2015-08-06 Schaeffler Technologies AG & Co. KG Arretierung und zugehöriges Herstellungsverfahren
DE102016219918A1 (de) * 2016-10-13 2017-10-12 Schaeffler Technologies AG & Co. KG Transport- und/oder Montagesicherung

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2687046A (en) * 1950-04-19 1954-08-24 Bendix Westinghouse Automotive Lock for brake slack adjusters
GB2295208A (en) * 1994-11-18 1996-05-22 Jurgen Decker Positioning pin for a vehicle transmission actuating mechanism
DE19540039A1 (de) * 1995-10-27 1997-04-30 Schaeffler Waelzlager Kg Schaltarretierung
EP0940606A2 (fr) * 1998-03-05 1999-09-08 Volkswagen Aktiengesellschaft Dispositif de verrouillage pour mécanisme de changement de vitesse

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1273832B1 (fr) 2001-07-04 2004-09-08 GETRAG FORD Transmissions GmbH Dispositif de changement de vitesses et méthode de guidage du mouvement d'un levier de vitesses
EP1626209B1 (fr) 2004-08-09 2012-10-10 Getrag Ford Transmissions GmbH Commande interne des boîtes de vitesses avec dispositif de billage et de verrouillage

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2687046A (en) * 1950-04-19 1954-08-24 Bendix Westinghouse Automotive Lock for brake slack adjusters
GB2295208A (en) * 1994-11-18 1996-05-22 Jurgen Decker Positioning pin for a vehicle transmission actuating mechanism
DE19540039A1 (de) * 1995-10-27 1997-04-30 Schaeffler Waelzlager Kg Schaltarretierung
EP0940606A2 (fr) * 1998-03-05 1999-09-08 Volkswagen Aktiengesellschaft Dispositif de verrouillage pour mécanisme de changement de vitesse

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009153119A3 (fr) * 2008-06-19 2010-02-18 Schaeffler Kg Dispositif de fixation de montage et de transport pour un mécanisme de changement de vitesses d'une transmission

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