WO2016000891A1 - Actionneur de changement de rapport, boîte de vitesses et procédé pour faire fonctionner un actionneur de changement de rapport - Google Patents

Actionneur de changement de rapport, boîte de vitesses et procédé pour faire fonctionner un actionneur de changement de rapport Download PDF

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Publication number
WO2016000891A1
WO2016000891A1 PCT/EP2015/062185 EP2015062185W WO2016000891A1 WO 2016000891 A1 WO2016000891 A1 WO 2016000891A1 EP 2015062185 W EP2015062185 W EP 2015062185W WO 2016000891 A1 WO2016000891 A1 WO 2016000891A1
Authority
WO
WIPO (PCT)
Prior art keywords
shift fork
shift
schaltaktorik
latching device
rod
Prior art date
Application number
PCT/EP2015/062185
Other languages
German (de)
English (en)
Inventor
Bernard Hunold
Martin Rattay
Original Assignee
Zf Friedrichshafen Ag
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 Zf Friedrichshafen Ag filed Critical Zf Friedrichshafen Ag
Publication of WO2016000891A1 publication Critical patent/WO2016000891A1/fr

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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
    • F16H63/3023—Constructional features of the final output mechanisms the final output mechanisms comprising elements moved by fluid pressure
    • 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
    • F16H63/304—Constructional features of the final output mechanisms the final output mechanisms comprising elements moved by electrical or magnetic force
    • 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
    • F16H63/3069—Interrelationship between two or more final output 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
    • 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
    • F16H63/32—Gear shift yokes, e.g. shift forks
    • 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
    • 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
    • F16H2063/025—Final output mechanisms for double clutch transmissions
    • 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
    • F16H63/304—Constructional features of the final output mechanisms the final output mechanisms comprising elements moved by electrical or magnetic force
    • F16H2063/305—Constructional features of the final output mechanisms the final output mechanisms comprising elements moved by electrical or magnetic force using electromagnetic solenoids
    • 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
    • F16H63/3069—Interrelationship between two or more final output mechanisms
    • F16H2063/3073—Interrelationship between two or more final output mechanisms final output mechanisms mounted on a single 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
    • 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
    • F16H63/32—Gear shift yokes, e.g. shift forks
    • F16H2063/321—Gear shift yokes, e.g. shift forks characterised by the interface between fork body and shift rod, e.g. fixing means, bushes, cams or pins

Definitions

  • the invention relates to a Wegaktorik with at least a first shift fork and a second shift fork, which are arranged displaceable to each other.
  • the invention also relates to a transmission with a switching actuator and a method for operating a Wegaktorik.
  • Gears for motor vehicles, especially for commercial vehicles are typically designed as a group transmission to realize a variety of aisles with relatively little construction costs.
  • the Heidelbergaktutechnik such a group transmission is a combination of "select” and “switch”, which in turn the design effort is kept as low as possible.
  • double clutch transmissions for vehicles are already known. These require at a same number of gears as a group transmission a higher number of actuators, which must be independently operable.
  • a shift fork is slidably disposed on a shift rod. It is known from practice to operate the shift forks in dual-clutch transmissions, in particular of passenger cars, each with a separate actuator. The actuator can to move the shift fork along the shift rod.
  • Such Siemensaktorik which is formed of a shift fork with an adjusting element associated with the shift fork, is problematic in that it requires considerable design effort, requires a large space and is expensive to manufacture.
  • the usual in commercial vehicles “select” and “switch” is too slow in a dual-clutch transmission and also critical to function.
  • a further object of the present invention is further to specify a method for operating a switching actuator. Furthermore, it is an object of the present invention to provide an alternative switching actuator. Finally, it is an object of the present invention to provide an alternative method of operating a switching actuator.
  • the present invention solves the tasks in a Wegaktorik with at least a first shift fork and a second shift fork, which are arranged displaceably to each other, characterized in that the first shift fork and the second shift fork via a common actuator for shifting the shift forks are interconnected and that the first Shift fork via a first latching device and the second shift fork via a second locking device are detachably fixable.
  • the present invention also achieves the objects with a transmission comprising a switching actuator according to one of claims 1 to 12.
  • the present invention also achieves the objects with a method for operating a switching actuator according to one of claims 1 to 12, characterized by the following method steps: the latching device of the switching fork to be switched is opened, the actuating element is actuated such that the switching fork of a first position is moved to a second position, wherein the latching device of the further shift fork remains closed, the latching device of the shift fork to be switched is closed.
  • the number of actuators can be reduced in a particularly sophisticated manner. Along with this, the constructive effort and the required space of such a switching actuator is reduced, with a fast and reliable operation of the shift forks possible and the Heidelbergtorik also inexpensive to manufacture.
  • the latching devices respectively assigned to the shift forks allow the fixation of the shift gear. in a defined position, without further position monitoring or the application of actuation energy is necessary.
  • the corresponding latching device of the shift fork to be shifted is opened, wherein the latching device of the further shift fork remains closed and thus serves as an abutment.
  • the latching device of the shift fork to be shifted is closed and thus held in a defined position.
  • the first shift fork and the second shift fork are guided together on at least one shift rod.
  • a structural unit is created in which the shift forks are arranged in a largely defined position to each other.
  • the actuating element is designed as a cylinder-piston arrangement.
  • this construction is a particularly simple and thus reliable operation, i. Shift, the shift forks feasible.
  • the actuator is hydraulically, pneumatically, electrically and / or magnetically actuated.
  • Such actuation of the control element has the advantage that the control element is on the one hand very quickly actuated, on the other hand a reliable operation is ensured.
  • a defined displacement of the shift forks is possible in such a construction in a particularly simple manner.
  • the actuator is in the area adjacent to the shift rod, preferably axially parallel to the shift rod arranged.
  • Such an arrangement is structurally particularly easy to implement and therefore of particular advantage.
  • a switching actuator with a control element arranged in this way is particularly cost-effective to produce.
  • the actuator is arranged concentrically around the shift rod around. The advantage of such an arrangement is that it requires a very small space.
  • the introduction of force line in such an arrangement of the actuating element is particularly advantageous because almost no tilting moment acts on the shift forks when operating the actuating element.
  • the first and / or the second locking device is hydraulically, pneumatically, electrically and / or magnetically actuated.
  • the advantage of such a locking device is that a quick and reliable operation of the locking device is possible and the shift forks are always fixed in a defined position.
  • the first and / or the second latching device each have a movable pin.
  • the arrangement of a movable pin secure fixing of the shift forks is possible in a particularly sophisticated manner.
  • a passage is formed on the first and / or second shift fork and / or on a fixing region arranged on the first and / or the second shift fork, so that the pin can be inserted through the passage into a recess in the shift rod.
  • the shift fork can be reliably fixed to correspondingly defined positions with technically simplest means relative to the shift rod.
  • the first and / or the second latching device each have a spring element and an electromagnet, wherein the pin is acted upon by the spring element in the direction of the shift rod with a spring force and by the electromagnet against the spring force is movable.
  • At least one of the first and / or the second shift fork and / or the fixing region of the first and / or the second shift fork formed two, preferably three, passages for receiving the pin of the corresponding latching device.
  • the passages thus define in a flexible manner at least two different positions in which the shift forks are each fixable.
  • At least two, preferably three, recesses for receiving the pin of the corresponding latching device are formed on the shift rod respectively in the region of the first shift fork and the second shift fork.
  • Fig. 1 shows an example of a dual-clutch transmission with in loadschaltbaren
  • Fig. 2 in general the arrangement of a switching actuator according to the invention in a transmission; 3 shows a switching actuator according to the invention according to a first embodiment of the present invention in a perspective view;
  • FIG. 4 shows a detail of the switching actuator according to the invention from FIG. 3 in a sectional representation
  • Fig. 5 is a partial enlargement of the invention.
  • FIG. 6 shows the electronic and fluidic coupling of the inventive switching actuator from FIG. 3;
  • FIG. 7 shows a switching actuator according to the invention according to a second embodiment of the present invention in a perspective, partially sectioned illustration
  • FIG. 8 shows a detail of the switching actuator according to the invention from FIG. 7 in a sectional illustration
  • FIG. 9 shows a switching actuator according to the invention according to a third embodiment of the present invention in a perspective, partially sectioned illustration.
  • Fig. 1 shows a dual-clutch transmission as an example of a transmission in which a Wegtorik invention can be used.
  • reference numeral 1 denotes a transmission in the form of a dual-clutch transmission.
  • the dual-clutch transmission 1 has two powershift elements in the form of clutches K1, K2.
  • the drive side AN can be coupled or connected to the output side AB of the transmission 1 for the transmission of force and torques.
  • the first clutch K1 is connected to a ner first input shaft EW1 and the second clutch K2 is connected to a second input shaft EW2.
  • the transmission 1 comprises a main gear 2 and a planetary gear 3.
  • the main gear 2 In the main gear 2, four switching elements S1, S2, S3, S4 are arranged.
  • the switching forks arranged in the switching elements-not shown in FIG. 1- are connected to one another via a common control element and can be switched by the latter.
  • Embodiments of such switching actuators according to the invention are described below.
  • Fig. 2 generally shows the arrangement of a switching actuator according to the invention in a transmission.
  • Reference numeral 1 denotes a transmission.
  • the transmission 1 has two countershafts VW1, VW2.
  • the transmission 1 comprises a first shift rod SC1 and a second shift rod SC2, which are arranged parallel to each other and to the two countershafts VW1, VW2.
  • On the first shift rod SC1 two shift forks SG1, SG2 are slidably disposed.
  • the shift forks SG1, SG2 are connected to each other via a first control element ST1.
  • Shift rod SC2 is a first shift fork SG3 and a second shift fork SG4 arranged slidably.
  • the shift forks SG3, SG4 are connected to each other via a second control element ST2.
  • Fig. 3 is a Heidelbergaktorik invention consisting of a
  • the first shift fork SG1 is connected to the second shift fork SG2 via a common control element ST.
  • the actuator ST is in the area next to the shift rod SC, axially parallel to the shift rod SC, respectively.
  • the first shift fork SG1 is fixable via a first latching device RE1 and the second shift fork SG2 is releasably fixable to the shift rod SC via a second latching device RE2.
  • the shift forks SG1, SG2 each have a fixation area FB1, FB2.
  • the fixing area FB1 is formed on the second shift fork SG2 side facing the first shift fork SG1.
  • the fixing region FB2 is formed on the side of the second shift fork SG2 facing away from the first shift fork SG1.
  • Three passages 4 for receiving a pin 5 of the corresponding latching device RE1, RE2 are respectively formed on the fixing regions FB1, FB2.
  • the corresponding pin 5 of the respective latch RE1, RE2 can be inserted into a recess 13 of the shift rod SC, so as to fix the shift forks SG1, SG2 with respect to the shift rod SC.
  • the pin 5 of the first locking device RE1 is pulled out of the recess 13 and the passage 4, so that the first shift fork SG1 is no longer fixed to the shift rod SC.
  • the actuator ST is actuated and thereby the first shift fork SG1 shifted to its desired position, wherein the second shift fork SG2 is fixed on the second latching device RE2 on the shift rod SC and thus serves as an abutment.
  • the first shift fork SG1 is fixed relative to the shift rod SC by the pin 5 of the first locking device RE1 through the corresponding passage 4 of the fixing portion FB1 into the recess 13 of the
  • Shift rod SC is introduced.
  • the actuation of the second shift fork SG2 is analogous to the operation of the first shift fork SG1, wherein the latching device RE1 of the first shift fork SG1 remains closed during the operation of the second shift fork SG2 and thus serves as an abutment.
  • FIG. 4 shows the switching actuator according to the invention from FIG. 3 in a sectional representation.
  • the shift forks SG1, SG2 are each mounted on roller bearings 6 on the shift rod SC slidably.
  • the locking devices RE1, RE2 each have a spring element 7 and an electromagnet 8. About the spring element 7 of the pin 5 in the direction of
  • Shift rod SC acted upon by a spring force and movable by the electromagnet 8 against the spring force.
  • a voltage is applied to the electromagnet 8, so that the pin 5 is moved against the spring force of the spring element 7 and so pulled out of the recess 13 of the shift rod and the passage 4 of the respective shift fork SG1, SG2 becomes.
  • the adjusting element ST is designed as a cylinder-piston arrangement and has a cylinder 9 with a piston 10 arranged movably therein.
  • the cylinder 9 further has an axial guide 11 on its lateral surface. Further, within the cylinder 9, a plug 12 is formed as a seal against the environment.
  • FIG. 4 is a sectional view of the switching actuator shown in FIG. 3, further explanations are unnecessary with reference to the figure description of FIG. 3.
  • Fig. 5 shows a partial enlargement of the Wegaktorik invention from the
  • Fig. 4 In Fig. 5 it can be clearly seen that a total of three passages 4 are formed on the fixing area FB1. Furthermore, the recess 13 can be seen in the shift rod SC, in which the pin 5 can be introduced. It should be expressly pointed out that in FIG. 5 only the first shift fork SG1 with the corresponding latching device RE1 is shown, but the second shift fork SG2 and the corresponding latching device RE2 are designed analogously and a corresponding recess 13 in the region of the second shift fork SG2 is formed in the shift rod SC.
  • FIG. 5 shows an enlarged partial view of these figures.
  • FIG. 6 shows an electronic and fluidic coupling of an embodiment of a switching actuator according to the invention from FIG. 3.
  • Fig. 6 two inputs / outputs 14 are shown on the actuator ST, through which the actuator ST is hydraulically or pneumatically connected to a 3/2-way valve 15 respectively.
  • the directional valves 15 are each connected via fluid lines to a check valve 16 and a pneumatic motor 17 and to the atmosphere.
  • the directional control valves 15, the electromagnets 8 and the monitoring sensors of the shift forks SG1, SG2 can be controlled via an electronic control unit ECU.
  • Fig. 7 shows a switching actuator according to a second embodiment of the present invention in a perspective, partially sectional view.
  • Fig. 7 is a Heidelbergaktorik invention consisting of a
  • the first shift fork SG1 is connected to the second shift fork SG2 via a common control element ST.
  • the control element ST is arranged concentrically around the shift rod SC around, so that almost no tilting moment is exerted on the shift forks SG1, SG2 upon actuation of the actuating element ST.
  • the first shift fork SG1 is fixable via a first latching device RE1 and the second shift fork SG2 is releasably fixable to the shift rod SC via a second latching device RE2.
  • the shift forks SG1, SG2 each have a fixation area FB1, FB2.
  • the first fixing region FB1 is formed on the side of the first shift fork SG1 facing away from the second shift fork SG2.
  • the second fixing area FB2 is formed on the side of the second shift fork SG2 facing away from the first shift fork SG1.
  • Three passages 4 for receiving a pin 5 of the corresponding latching device RE1, RE2 are respectively formed on the two fixing regions FB1, FB2.
  • the corresponding pin 5 of the respective latching device RE1, RE2 is insertable into a recess 13 of the shift rod SC, so as to fix the shift forks SG1, SG2 with respect to the shift rod SC.
  • the locking devices RE1, RE2 each have a spring element 7 and an electromagnet 8. About the spring element 7 of the pin 5 in the direction of
  • Shift rod SC acted upon by a spring force and movable by the electromagnet 8 against the spring force.
  • a voltage is applied to the electromagnet 8, so that the pin 5 is moved against the spring force of the spring element 7 and so from the recess 13 of Shift rod SC and the passage 4 of the respective shift fork SG1, SG2 is pulled out.
  • the pin 5 of the first locking device RE1 is pulled out of the recess 13 and the passage 4, so that the first shift fork SG1 is no longer fixed to the shift rod SC.
  • the actuator ST is actuated and thereby the first shift fork SG1 shifted to its desired position, wherein the second shift fork SG2 is fixed on the second latching device RE2 on the shift rod SC and thus serves as an abutment.
  • the first shift fork SG1 is fixed relative to the shift rod SC by the pin 5 of the first latch RE1 is inserted through the corresponding passage 4 of the fixing portion FB1 in the recess 13 of the shift rod SC.
  • the actuation of the second shift fork SG2 is analogous to the actuation of the first shift fork SG1, wherein the latching device RE1 of the first shift fork SG1 remains closed during the actuation of the second shift fork SG2.
  • FIG. 8 shows a section of the embodiment of the switching actuator according to FIG. 7 in a sectional representation.
  • Fig. 8 it is shown that the shift forks SG1, SG2 are each mounted on roller bearings 6 on the shift rod SC.
  • the adjusting element ST is designed as a cylinder-piston arrangement and has a cylinder 9 and a piston 10 which is displaceably arranged in the cylinder.
  • the fixing regions FB1, FB2 of the shift forks SG1, SG2 are each formed on the side of the shift forks SG1, SG2 facing away from the actuating element ST and each have three passages 4.
  • Fig. 8 is a sectional view of the embodiment shown in Fig. 7, reference is made to avoid repetition of the comments on Fig. 7.
  • Fig. 9 shows a Heidelbergaktohk according to a third embodiment of the present invention in a perspective, partially sectional view.
  • FIG. 9 shows a shift actuator with a shift rod SC and shift forks SG1, SG2 arranged displaceably thereon.
  • the first shift fork SG1 is connected to the second shift fork SG2 via a common control element ST.
  • the actuator ST is in the area next to the shift rod SC, parallel to the axis
  • Shift rod SC arranged.
  • the shift forks SG1, SG2 are each mounted on roller bearings 6 relative to the shift rod SC.
  • the first shift fork SG1 is fixable via a first latching device RE1 and the second shift fork SG2 is releasably fixable to the shift rod SC via a second latching device RE2.
  • the locking devices RE1, RE2 each have a spring element 7 and an electromagnet 8. About the spring element 7 of the pin 5 in the direction of
  • Shift rod SC acted upon by a spring force and movable by the electromagnet 8 against the spring force.
  • a voltage is applied to the electromagnet 8, so that the pin 5 is moved against the spring force of the spring element 7 and so from the recess 13 of the shift rod SC and the passage 4 of the respective shift fork SG1, SG2 is pulled out.
  • the adjusting element ST is designed as a cylinder-piston arrangement and has a cylinder 9 with a piston 10 arranged movably therein.
  • the cylinder 9 further has an axial guide 11 on its lateral surface. Further, within the cylinder 9, a plug 12 is formed as a seal against the environment.
  • the pin 5 of the first locking device RE1 is pulled out of the recess 13 and the passage 4, so that the first shift fork SG1 is no longer fixed to the shift rod SC.
  • the actuator ST is actuated and thereby the first shift fork SG1 shifted to its desired position, wherein the second shift fork SG2 is fixed on the second latching device RE2 on the shift rod SC and thus serves as an abutment.
  • the first shift fork SG1 is fixed relative to the shift rod SC by the pin 5 of the first latch RE1 is inserted through the corresponding passage 4 of the first shift fork SC1 in the recess 13 of the shift rod SC.
  • the actuation of the second shift fork SG2 is analogous to the actuation of the first shift fork SG1, wherein the latching device RE1 of the first shift fork SG1 remains closed during the actuation of the second shift fork SG2.
  • the present invention provides, inter alia, the advantage that the number of control elements is minimized by the arrangement of a common control element and thus the design effort and the required space extremely low, with a fast and reliable operation of the shift forks is made possible and Heidelbergtorik invention is inexpensive to manufacture.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Gear-Shifting Mechanisms (AREA)

Abstract

La présente invention concerne un actionneur de changement de rapport comprenant au moins une première fourchette de boîte de vitesses (SG1) et une deuxième fourchette de boîte de vitesses (SG2) qui sont montées coulissantes l'une par rapport à l'autre. La première fourchette de boîte de vitesses et la deuxième fourchette de boîte de vitesses sont reliées l'une à l'autre par le biais d'un élément de réglage (ST) commun servant à faire coulisser les fourchettes de boîte de vitesses l'une avec l'autre, et la première fourchette de boîte de vitesses peut être immobilisée de manière amovible par le biais d'un premier dispositif à cran d'arrêt (RE1) et la deuxième fourchette de boîte de vitesses par le biais d'un deuxième dispositif à cran d'arrêt (RE2). La présente invention concerne en outre une boîte de vitesses équipée d'un actionneur de changement de rapport correspondant, ainsi qu'un procédé pour faire fonctionner un actionneur de changement de rapport correspondant.
PCT/EP2015/062185 2014-07-02 2015-06-02 Actionneur de changement de rapport, boîte de vitesses et procédé pour faire fonctionner un actionneur de changement de rapport WO2016000891A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014212750.5 2014-07-02
DE102014212750.5A DE102014212750A1 (de) 2014-07-02 2014-07-02 Schaltaktorik, Getriebe und Verfahren zum Betreiben einer Schaltaktorik

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Publication Number Publication Date
WO2016000891A1 true WO2016000891A1 (fr) 2016-01-07

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WO (1) WO2016000891A1 (fr)

Cited By (1)

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EP4141288A1 (fr) * 2021-08-27 2023-03-01 CLAAS Industrietechnik GmbH Ensemble de changement de vitesses et procédé permettant de faire fonctionner un ensemble de changement de vitesses

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