CN116906461A - Sliding device, device for coupling and decoupling shafts, and bridge drive - Google Patents

Sliding device, device for coupling and decoupling shafts, and bridge drive Download PDF

Info

Publication number
CN116906461A
CN116906461A CN202310271947.5A CN202310271947A CN116906461A CN 116906461 A CN116906461 A CN 116906461A CN 202310271947 A CN202310271947 A CN 202310271947A CN 116906461 A CN116906461 A CN 116906461A
Authority
CN
China
Prior art keywords
bridge drive
shaft
sliding device
coupling
hollow cylinder
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.)
Pending
Application number
CN202310271947.5A
Other languages
Chinese (zh)
Inventor
格拉西亚·阿普费尔塔勒
托马斯·卡拉斯
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
Publication of CN116906461A publication Critical patent/CN116906461A/en
Pending 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
    • F16D28/00—Electrically-actuated clutches
    • 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
    • F16D11/00—Clutches in which the members have interengaging parts
    • F16D11/14—Clutches in which the members have interengaging parts with clutching members movable only 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
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw 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
    • 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
    • F16H63/08—Multiple final output mechanisms being moved by a single common final actuating mechanism
    • F16H63/16—Multiple final output mechanisms being moved by a single common final actuating mechanism the final output mechanisms being successively actuated by progressive movement of the final actuating mechanism
    • 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
    • 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
    • F16D23/00—Details of mechanically-actuated clutches not specific for one distinct type
    • F16D23/12—Mechanical clutch-actuating mechanisms arranged outside the clutch as such
    • F16D2023/123—Clutch actuation by cams, ramps or ball-screw mechanisms

Abstract

The invention relates to a sliding device (1) for coupling and decoupling a driven shaft (33) of a bridge drive (30) from a shaft (32) of the bridge drive (30), comprising: -a hollow cylinder (2) comprising an inner peripheral surface, an outer peripheral surface (3) and two opposite end faces (4, 5) on the end sides, -wherein the outer peripheral surface (3) comprises at least one engagement portion (6) or has a threaded guide portion (7) of a threaded guide portion (22) of a device (20) for coupling and decoupling two shafts of a bridge drive (30) to effect a guided linear movement of the hollow cylinder (2). The invention also relates to a device (20) for coupling and decoupling two shafts (32, 33) of a bridge drive (30) for a hybrid or electric vehicle, and a bridge drive (30) for a hybrid or electric vehicle.

Description

Sliding device, device for coupling and decoupling shafts, and bridge drive
Technical Field
The present invention relates to a sliding device for coupling and decoupling a driven shaft of a bridge drive to a shaft of the bridge drive.
The invention also relates to a device for coupling and decoupling two shafts of a bridge drive of a hybrid or electric vehicle.
The invention also relates to a bridge drive for a hybrid or electric vehicle.
Background
Shift devices for drive systems are known in the prior art, in which a shift fork is moved in order to push a sliding sleeve. In this way, the gear stages are connected or disconnected within the transmission.
The shift fork is pushed here, for example, by means of an electric motor, a hydraulic device or simply by muscle force alone.
For hybrid or electric vehicles, the shifting device is also important, since the electric motor can be coupled or decoupled, for example, from the wheels.
In particular in fixed-speed driving, i.e. in hybrid or electric vehicles running at a constant speed, it appears to be interesting in four-wheel drive vehicles, for example, to decouple one of the two axles from the electric drive, for example, in order to minimize power losses.
Disclosure of Invention
It is therefore an object of the present invention to provide a sliding device for coupling and decoupling a driven shaft of a bridge drive to and from a shaft of a bridge drive, which enables coupling and decoupling of two shafts of a hybrid or electric vehicle in a simple manner, which can be produced cost-effectively, material-effectively and lightweight, in order to protect the environment and maximize the range of the vehicle.
It is also an object of the present invention to provide a device for coupling and decoupling two shafts of a bridge drive of a hybrid or electric vehicle and a bridge drive for a hybrid or electric vehicle, which respectively enable the coupling and decoupling of two shafts of a hybrid or electric vehicle in a simple manner, which can be produced cost-effectively, material-effectively and lightweight, in order to protect the environment and maximize the mileage of the vehicle.
This object is achieved by the features of the independent claims. Further advantageous developments are the subject matter of the dependent claims.
A first aspect of the invention comprises a sliding device for coupling or decoupling a driven shaft of a bridge drive with a shaft of the bridge drive.
The sliding device has a hollow cylinder with an inner circumferential surface, an outer circumferential surface and two opposite end faces on the end side.
In this context, the peripheral surface has at least one engagement of a threaded guide of the means for coupling and decoupling the two shafts of the bridge drive, so that the hollow cylinder performs a guided linear movement. For example, the linear movement can take place along the shaft or along the driven shaft of the bridge drive. The present design thus provides the possibility of mounting on the outer circumferential surface of the hollow cylinder at least one engagement portion configured to engage into a threaded guide of the means for coupling and uncoupling the two shafts for moving the sliding means. The construction of at least one joint on the hollow cylinder can be realized cost-effectively and material-effectively, wherein the sliding device can also be produced in a lightweight manner.
Alternatively, the outer circumferential surface has a threaded guide to enable the hollow cylinder to perform a guided linear movement, for example along the axis of the bridge drive or along the driven axis of the bridge drive. The present design provides a possibility of mounting a screw guide on the outer peripheral surface, the screw guide being configured to engage at least one engagement portion of the means for coupling and decoupling the two shafts into the screw guide to move the sliding means. The provision of at least one threaded guide on the hollow cylinder can be realized cost-effectively and material-effectively, wherein the sliding device can also be produced in a lightweight manner.
Furthermore, at least one engagement or thread guide can be arranged directly on the outer circumferential surface or on the outside of the hollow cylinder.
A first variant involving a threaded guide is described below in connection with the first aspect of the invention.
In a first variant, the thread guide can be configured as a thread, which is introduced into the hollow cylinder or which can be mounted on the outside or on the peripheral surface of the hollow cylinder. For example, when at least one engagement portion of a device for coupling and decoupling two shafts of a bridge drive device of a hybrid or electric vehicle is engaged into a threaded guide configured as a thread, a relative linear movement between the at least one engagement portion and a sliding device can be caused.
The thread guide can have a constant thread pitch. This ensures that the slide moves at a constant speed.
Furthermore, the peripheral surface can have a circumferential groove in which the thread guide ends. Thus enabling the movement of the hollow cylinder to be stopped. Since the relative linear movement between the at least one joint and the slide is terminated as soon as, for example, the at least one joint of the device for coupling and decoupling two shafts of the bridge drive of the hybrid or electric vehicle is introduced into the slot by means of a thread guide configured as a thread.
It is possible here for the groove to be configured deeper in the outer circumferential surface than the thread guide. It is thus possible to avoid at least one engagement portion returning into the thread guide configured as a thread.
A second variant is described below in connection with the first aspect of the invention.
In a second variant, at least one engagement portion can be configured as a needle, pin or projection, which can be mounted on the outer side or peripheral surface of the hollow cylinder.
The at least one engagement can be configured to engage into a threaded guide of a device for coupling and decoupling two shafts of a bridge drive of a hybrid or electric vehicle in order to bring about a guided linear movement of the hollow cylinder. Thus, for example, when at least one engagement portion is engaged into a threaded guide of a device for coupling and decoupling two shafts of a bridge drive of a hybrid or electric vehicle, a relative linear movement between the at least one engagement portion and an actuation mechanism of the device for coupling and decoupling two shafts of a bridge drive of a hybrid or electric vehicle can be caused.
The following features can relate to the first variant and/or the second variant described above.
Thus, the inner circumferential surface of the hollow cylinder can have shift claw-shaped teeth, whereby the hollow cylinder forms a shift joint sleeve.
Alternatively or additionally, the sliding device has a shift collar in the interior of the hollow cylinder.
The shift collar can comprise an outer groove and an inner shift claw, wherein the inner circumferential surface of the hollow cylinder can be configured to engage into the outer groove of the shift collar in order to move the hollow cylinder jointly with the shift collar. In short, therefore, a shift collar can be arranged in the interior of the slide, or the slide can enclose the shift collar so that it moves linearly.
A second aspect of the invention includes a device for coupling and decoupling two shafts of a bridge drive of a hybrid or electric vehicle.
It is important to note that the features of the sliding device as described in the first aspect can be applied alone or in combination with each other in a device for coupling and decoupling two shafts of a bridge drive of a hybrid or electric vehicle.
In other words, the features according to the first aspect of the invention relating to the sliding device may also be combined with other features according to the second aspect of the invention.
The means for coupling and decoupling two shafts of a bridge drive of a hybrid or electric vehicle comprises a sliding device according to the first aspect.
Furthermore, the device has an actuation mechanism for interacting with the sliding device. In contrast to a sliding device, the actuating mechanism is designed to be fixed in position or arranged in a fixed manner on the housing of the device and/or on the housing of the bridge drive for a hybrid or electric vehicle. Furthermore, the actuating mechanism can be configured mechanically, electrically, pneumatically and/or hydraulically. Here, the actuating mechanism can be a linear actuator, for example.
Furthermore, the device can have a threaded guide for engaging at least one engagement portion of the slide to cause the slide to perform a guided linear movement.
Alternatively, the device can have at least one engagement portion for engagement into a threaded guide portion of the slide to cause the slide to perform a guided linear motion.
The two embodiments of the device for coupling and decoupling two shafts of a bridge drive of a hybrid or electric vehicle can be produced in a cost-effective, material-saving or lightweight manner, and in comparison with prior art solutions, shift forks can be omitted. The weight of the hybrid or electric vehicle can be further reduced by omitting the shift fork, thereby protecting the environment and maximizing the driving range of the vehicle.
Two switching states of the slide can also be achieved.
In a first switching state of the sliding device, the output shaft of the bridge drive can be coupled to the shaft of the bridge drive.
In a second switching state of the sliding device, the driven shaft of the bridge drive can be decoupled from the shaft of the bridge drive.
A first variant involving at least one joint of the device is described below in connection with the second aspect of the invention.
The at least one engagement portion can thus be configured as an actuating element which can be moved into and out of the threaded guide of the slide. Here, at least one engagement portion or actuating element is configured to be linearly movable. The at least one engagement portion or the actuating element can also be configured as a needle, pin or projection.
The two switching positions of the actuating element of the device, namely the retracted switching position of the actuating element with respect to/without operative connection or interaction with the sliding device and the extended switching position with respect to/with the sliding device, can be achieved by the actuating mechanism or by the motor of the actuating mechanism. It is also possible to achieve only two switching positions, namely a retracted switching position and an extended switching position, by means of the actuating mechanism.
Furthermore, in the retracted switching position of the device, the actuating element can be retracted to avoid interaction with the threaded guide of the sliding device. The sliding device is thus only rotated relative to the actuating element, specifically together with the shaft of the bridge drive, whereas the sliding device does not move linearly relative to the actuating element.
Furthermore, in the extended switching position of the device, the actuating element can be extended to engage into the threaded guide of the sliding device. The actuating element can thereby cause a linear movement of the sliding device or of the hollow cylinder with the threaded guide when the sliding device rotates together with the shaft of the bridge drive, whereby the sliding device rotates relative to the actuating element and additionally moves linearly relative to the actuating element. The relative linear movement of the slide can be stopped without the actuating element having to be moved back into the moved-in switching position. As the actuating element is no longer guided in the screw guide but in the groove when reaching the groove of the outer circumferential surface of the hollow cylinder. This does not cause further linear movement relative to the actuating mechanism or relative to the actuating element.
A second variant relating to the threaded guide of the device is described below in connection with a second aspect of the invention.
The actuating mechanism can comprise a hollow cylindrical actuating element on the inner circumferential surface of which a threaded guide of a device for coupling and decoupling two shafts of a bridge drive of a hybrid or electric vehicle can be mounted or constructed. Thus, the sliding device can be guided in the threaded guide of the device with at least one engagement thereof on its outer circumferential surface. Furthermore, a relative linear movement between the actuating element and the slide can be induced. The actuating mechanism can here enclose the slide or the slide can be arranged inside/within the actuating mechanism.
The thread guide can be configured as a thread which is introduced into the hollow-cylindrical actuating element or which can be mounted on the inner side or on the inner circumferential surface of the hollow-cylindrical actuating element.
The thread guide can have a constant pitch. This ensures that the slide moves at a constant speed.
Furthermore, the actuating element can have external teeth on the outside or on its outer circumferential surface.
Furthermore, the actuation mechanism can comprise a pinion element, which can engage into an external tooth of the actuation element of the actuation mechanism. The pinion member and the actuating member can thus mesh with each other.
The actuating mechanism can comprise a shaft by means of which the rotational energy of the actuating mechanism or of the motor of the actuating mechanism can be transmitted.
On this shaft, a pinion element of the actuating mechanism can be arranged in a rotationally fixed manner in order to transmit a rotational movement of the actuating mechanism to a hollow-cylindrical actuating element of the actuating mechanism and to transfer the sliding device from the first switching state into the second switching state or vice versa.
In a first switching state of the sliding device, the output shaft of the bridge drive can be coupled to the shaft of the bridge drive.
In a second switching state of the sliding device, the driven shaft of the bridge drive can be decoupled from the shaft of the bridge drive.
In order to shift from the first switching state to the second switching state, for example, the pinion connected to the shaft can be rotated counterclockwise. The sliding device can thus be moved in such a way that it decouples the output shaft of the bridge drive from the shaft of the bridge drive. To transition from the second switching state to the first switching state, the pinion connected to the shaft can be rotated clockwise. The sliding device can thus be moved (back) in such a way that it couples the output shaft of the bridge drive with the shaft of the bridge drive.
A third aspect of the invention includes a bridge drive for a hybrid or electric vehicle.
It is important to note that the features of the device for coupling and decoupling two shafts of a bridge drive of a hybrid or electric vehicle as described in the second aspect can be applied in a bridge drive for a hybrid or electric vehicle, either alone or in combination with each other.
In other words, the features according to the second aspect of the invention relating to the device may also be combined with other features according to the third aspect of the invention.
Thus, a bridge drive for a hybrid or electric vehicle has a device according to the second aspect for coupling and decoupling two shafts of the bridge drive for a hybrid or electric vehicle.
The bridge drive comprises, in addition, an electric drive for driving at least one wheel.
The bridge drive further comprises a shaft connected to the electric drive.
The bridge drive has a driven shaft for driving at least one wheel.
Furthermore, the shaft of the bridge drive and the driven shaft of the bridge drive are oriented in the same direction or coaxially with respect to each other.
The driven shaft and the shaft can be oriented in the same direction or axis parallel to each other.
Alternatively, the shaft or driven shaft can be oriented offset and/or perpendicular to the direction of movement of at least one joint of the device.
The bridge drive can furthermore comprise a return spring for the sliding device, which returns the sliding device from the second switching state into the first switching state in which the output shaft of the bridge drive is coupled in a rotationally fixed manner to the shaft of the bridge drive or vice versa. For example, the second switching state is reset into the first switching state by removing at least one joint of the means for coupling and decoupling the two shafts of the bridge drive of the hybrid or electric vehicle from a threaded guide or groove of a sliding means of the means for coupling and decoupling the two shafts of the bridge drive of the hybrid or electric vehicle. The return spring thus presses the sliding device or its hollow cylinder back, to be precise back, into the first switching state.
Drawings
The present invention will be described in detail below with reference to examples of embodiments thereof. Here schematically shown:
fig. 1A to 1C show schematic side views of a bridge drive apparatus for a hybrid or electric vehicle according to a first embodiment; and
fig. 2A to 2C show schematic side views of a bridge drive apparatus for a hybrid or electric vehicle according to a second embodiment.
In the following description, the same objects are given the same reference numerals.
Detailed Description
Fig. 1A to 1C show schematic side views of a bridge drive apparatus 30 for a hybrid or electric vehicle according to a first embodiment. Here, different states are shown in the figures.
More precisely, fig. 1A to 1C show that the bridge drive 30 comprises an electric drive 31 for driving at least one vehicle. The bridge drive 30 has a shaft 32 connected to an electric drive 31.
The bridge drive 30 furthermore has a driven shaft 33 for driving at least one wheel and a device 20 for coupling and decoupling the two shafts 32, 33 of the bridge drive 30 of the hybrid or electric vehicle.
The means 20 for coupling and decoupling the two shafts 32, 33 of the bridge drive 30 comprise a slide 1 and an actuating mechanism 21 for interacting with the slide 1. In contrast to the sliding device 1, the actuating mechanism 21 can be constructed in a fixed manner or can be arranged on the housing of the device 20 or, for example, on the housing of the bridge drive 30.
The device 20 has an engagement portion 23 which engages into the threaded guide portion 7 of the slide 1 to cause the slide 1 to perform a guided linear movement.
According to fig. 1A to 1C, a sliding device 1 for coupling or decoupling a driven shaft 33 with a shaft 32 comprises a hollow cylinder 2 having an inner circumferential surface, an outer circumferential surface 3 and two opposite end faces 4, 5 on the end side.
The outer circumferential surface 3 has a threaded guide 7 in order to guide the hollow cylinder 2 in a linear movement, for example along the shaft 32 or along the driven shaft 33. The screw guide 7 is arranged directly on the outer circumferential surface 3 or on the outside of the hollow cylinder 2.
As also shown in fig. 1A to 1C, the thread guide 7 is configured as a thread, which is introduced into the hollow cylinder 2 or mounted on the outside or on the outer circumferential surface 3 of the hollow cylinder 2. The thread guide 7 or thread has a constant pitch.
Fig. 1A to 1C also show that the peripheral surface 3 has a circumferential groove 8 in which the thread guide 7 ends. Thus, the movement of the hollow cylinder 2 can be stopped. Because, once the engagement portion 23 of the device 20 is introduced into the groove 8, for example, by means of the thread guide 7 configured as a thread, the relative linear movement between the engagement portion 23 and the slide 1 is terminated. Here, the groove 8 is configured deeper in the outer peripheral surface 3 than the thread guide 7.
The inner peripheral surface of the hollow cylinder 2 has shift claw-shaped teeth (not shown), whereby the hollow cylinder 2 forms a shift joint sleeve.
However, it is also possible for the sliding device 1 to additionally have a shift collar inside the hollow cylinder 2. The shift collar here comprises an outer groove and an inner shift claw, wherein the inner circumferential surface of the hollow cylinder 2 is configured to engage into the outer groove of the shift collar. The hollow cylinder 2 can thus be moved together with the shift collar.
As mentioned, the device 20 has an engagement portion 23. According to fig. 1A to 1C, the engagement portion is configured as an actuating element 23, which is configured to be movable into and out of the threaded guide 7 of the slide 1. Thus, the engagement portion 23 or the actuating element 23 can be moved linearly and is configured as a pin.
The two switching positions of the actuating element 23 of the device 20 can be essentially achieved by means of the actuating mechanism 21 of the device 20 or the motor of the actuating mechanism 21; i.e. a retracted switching position in case the actuating element 23 is not in operative connection with the slide 1 and an extended switching position in case the actuating element 23 is in operative connection with the slide 1.
In other words, in the retracted switching position of the device 20, the actuating element 2 is retracted (shown in fig. 1A) to avoid interaction with the threaded guide 7 of the sliding device 1. Thus, the sliding device 1 rotates together with the shaft 32 of the bridge drive 30 only with respect to the actuating element 23, but the sliding device 1 does not additionally move linearly with respect to the actuating element 23.
While in the extended switching position of the device 20 the actuating element 23 is extended (shown in fig. 1B and 1C) to engage into the threaded guide 7 of the sliding device 1. Thus, when the slide 1 rotates with the shaft 32, the actuating element 23 causes a linear movement of the slide 1 or the hollow cylinder 2 with the threaded guide 7. Thus, the sliding device 1 rotates relative to the actuating element 23 and additionally moves linearly relative to the actuating element 23 or relative to the joint 23.
The relative linear movement of the slide 1 can be stopped without the actuation element 23 being returned into the retracted switching position (see fig. 1C). This is because, upon reaching the groove 8 of the outer circumferential surface 3 of the hollow cylinder 2, the actuating element 23 is no longer guided in the threaded guide 7, but is guided in the groove 8.
Likewise, by engaging the actuating element 23 into the threaded guide 7 configured as a thread, the threaded guide 7 of the slide 1 forces the slide 1 to move linearly. Since in the extended switching position (shown in fig. 1B and 1C) the pitch of the thread guide 7 is used to move the slide device 1 relative to the engagement portion of the device 20 or the actuating element 23 and the groove 8 of the outer circumferential surface 3 of the hollow cylinder 2 is free of such a pitch, the slide device 1 does not move further linearly along the driven shaft 23 when the actuating element 23 reaches the groove 8.
Fig. 1A to 1C also show that the shaft 32 and the driven shaft 33 are oriented in the same direction or coaxially with respect to each other with respect to the bridge drive 30.
Furthermore, the shaft 32 and the driven shaft 33 are oriented offset and vertically with respect to the direction of movement of the engagement or actuating element 23 of the device 20.
As is also evident from fig. 1A to 1C, the bridge drive 30 comprises a return spring 34 for the slide 1, which returns the slide 1 from the second switching state (shown in fig. 1C) into the first switching position (shown in fig. 1A), in which the driven shaft 33 is coupled in a rotationally fixed manner to the shaft 32 of the bridge drive 30. The return from the second switching state to the first switching state is effected by removing the actuating element 23 from the threaded guide 7, so that the return spring 34 presses the sliding device 1 or its hollow cylinder 2 back, in particular as described, into the first switching state (shown in fig. 1A).
Fig. 2A to 2C show schematic side views of a bridge drive apparatus 30 for a hybrid or electric vehicle according to a second embodiment. Here, different states are shown in the figures.
Fig. 2A to 2C more precisely show that the bridge drive 30 comprises an electric drive 31 for driving at least one wheel. The bridge drive 30 has a shaft 32, which is connected to an electric drive 31.
The transaxle 30 also has a driven shaft 33 for driving at least one wheel and a device 20 for coupling and decoupling the two shafts 32, 33 of the bridge drive 30 of the hybrid or electric vehicle.
The means 20 for coupling and decoupling the two shafts 32, 33 of the bridge drive 30 comprise a slide 1 and an actuating mechanism 21 for interacting with the slide 1. In contrast to the sliding device 1, the actuating mechanism 21 can be constructed or arranged in a stationary manner on the housing of the device 20 or, for example, on the housing of the bridge drive 30.
The device 20 has a threaded guide 22 for engaging the engagement portion 6 of the slide 1 to cause the slide to perform a guided linear movement.
According to fig. 2A to 2C, the sliding device 1 for coupling or decoupling a driven shaft 33 with a shaft 32 comprises a hollow cylinder 2 having an inner circumferential surface and an outer circumferential surface 3 and having two opposite end faces 4, 5 at the end side.
The outer circumferential surface 3 has an engagement 6 for the screw guide 22, so that the hollow cylinder 2 performs a guided linear movement, for example along the shaft 33 or along the driven shaft 33. The joint 6 is arranged directly on the outer circumferential surface 3 or outside of the hollow cylinder 2.
According to fig. 2A to 2C, the joint 6 is configured as a needle, pin or projection, which is mounted as described on the outer side or peripheral surface 3 of the hollow cylinder 2.
Furthermore, the engagement portion 6 is configured to engage into the threaded guide portion 22 of the device 20 to couple and decouple the two shafts 32, 33 of the bridge drive 30 of the hybrid or electric vehicle to effect the guided linear movement of the hollow cylinder 2.
The sliding device 1 has a shift collar (not shown) inside the hollow cylinder 2. The shift collar has an outer groove and an inner shift claw, wherein the inner side of the hollow cylinder 2 is configured to engage in the outer groove of the shift collar. The hollow cylinder 2 can thus be moved together with the shift collar.
According to fig. 2A to 2C, the actuating mechanism 21 comprises a hollow-cylindrical actuating element 24, on the inner side of which a threaded guide 22 of the device 20 for coupling and uncoupling the two shafts 32, 33 is mounted or constructed. Thus, the slide device 1 can be guided in the threaded guide 22 of the device 20 with its engagement portion 6 on the outer peripheral surface 3.
Fig. 2A to 2C furthermore show that the thread guide 22 is configured as a thread, which is introduced into the hollow-cylindrical actuating element 24 or is arranged on the inner side or inner circumferential surface of the hollow-cylindrical actuating element 24. The thread guide 22 has a constant pitch.
The actuating element 24 has external teeth on the outside or on its outer circumferential surface. Furthermore, the actuating mechanism 21 has a pinion element 25 which engages into an external toothing of the actuating element 24 of the actuating mechanism 21.
Fig. 2A to 2C also show that the actuating mechanism 21 comprises a shaft 26 by means of which rotational energy of the actuating mechanism 21 or of an electric motor 27 of the actuating mechanism 21 can be conducted. The pinion element 25 of the actuating mechanism 21 is arranged on the shaft 26 in a rotationally fixed manner in order to transmit the rotational movement of the actuating mechanism to the hollow-cylindrical actuating element 24. Thereby, the sliding device 1 can be transferred from the first switching state into the second switching state or in the opposite direction.
According to fig. 2A to 2C, two switching states of the sliding device 1 can be realized.
In a first switching state of the sliding device 1 (see fig. 2A), the driven shaft 33 is coupled with the shaft 32, and in a second switching state of the sliding device 1 (see fig. 2B and 2C), the driven shaft 33 is decoupled from the shaft 32.
In order to shift the second switching state from the first switching state, the pinion 25 connected to the shaft 26 is rotated counterclockwise, wherein the rotation of the pinion 25 is transmitted to the hollow-cylindrical actuating element 24. By means of the rotation of the actuating element 24, the engagement portion 6 configured as a pin is guided along the thread of the thread guide 22, whereby the sliding device 1 or its hollow cylinder 2 is moved along the driven shaft 33 or in the direction of the driven shaft 33.
Thus, the sliding device 1 travels or moves from the first switching state in fig. 2A into the second switching state in fig. 2B. Thereby decoupling the shaft 32 from the driven shaft 33.
In order to allow the shaft 32 to be coupled again to the driven shaft 33, the sliding device 1 must then travel/move from the second switching state (return) into the first switching state.
For this purpose, the pinion 25 connected to the shaft 26 rotates clockwise, wherein the rotation of the pinion 25 is transmitted again to the hollow-cylindrical actuating element 24. By means of the rotation of the actuating element 24, the engagement portion 6 configured as a pin is guided along the thread of the thread guide 22, whereby the slide or its hollow cylinder 2 is moved along the shaft 32 or in the direction of the shaft 33. Due to the fact that the slide 1 has a shift collar (not shown) inside the hollow cylinder 2, the shift collar also moves with the slide 1 or with its hollow cylinder 2.
Fig. 2A to 2C also show that the shaft 32 of the bridge drive 30 and the driven shaft 33 are oriented coaxially, wherein the driven shaft 33 and the shaft 26 of the actuating mechanism 21 are oriented in the same direction or in parallel with each other.
The inventive concept presented above is described again and additionally in another way below with reference to fig. 1A to 1C and 2A to 2C.
With reference to fig. 1A to 1C, this concept relates in a simple way to an electric actuator motor or motor 27 of an actuating mechanism 21 comprising a shaft 23 embodied as a threaded rod with a length-changing function or a pin 23 with two end positions, which is placed in a shift sleeve or in a sliding device during operation.
The sliding sleeve is integrated in the shifting sleeve of the sliding device 1 or in the hollow cylinder 2 for coupling and decoupling the driven shaft 33 of the bridge drive 30 to the shaft 32 and rotates with the drive shaft/shaft 32.
At this point if the shift sleeve/slide 1 is moved axially, the pin 23 slides into the end position with the normally deeper slot 8. The locking of this position is achieved by a self-locking or continuously energized solenoid of the motor 27. The motor 27 can rotate clockwise as well as counterclockwise. The return is effected by a coil spring or return spring 34.
Referring to fig. 2A to 2C, the inventive concept relates in a simple way to a pinion element 25 integrated on the rotor shaft 26 or shaft 26 of the actuating mechanism 21 or electric actuator motor 27/motor 27. The pinion element engages into an axially fixed ring with a ramp-shaped inner contour/thread guide 22 or into the outer toothing of a hollow-cylindrical actuating element 24.
The sliding sleeve is integrated within the sliding device 1. The sliding device 1 has, by means of its hollow cylinder 2, a pin/joint 6 on the outer diameter, which is placed in the hollow-cylindrical actuating element 24/the inner contour/thread guide 22 of the ring and which moves axially when the ring/actuating element 24 rotates.
The resetting need not be effected by further elements, since the motor 27 can rotate clockwise and counterclockwise. The locking of the position can be achieved by self-locking of the motor 27.
List of reference numerals
1. Sliding device
2. Hollow cylinder
3. Peripheral surface
4. End face
5. End face
6. Joint part
7. Screw thread guide
8. Groove(s)
20. Device and method for controlling the same
21. Actuating mechanism
22. Screw thread guide
23. Joint/actuating element
24. Hollow cylindrical actuating element
25. Pinion gear element
26. Shaft
27. Motor with a motor housing having a motor housing with a motor housing
30. Bridge driving device
31. Electric driving machine
32. Shaft
33. Driven shaft
34. Reset spring

Claims (10)

1. A sliding device (1) for coupling and decoupling a driven shaft (33) of a bridge drive (30) from a shaft (32) of the bridge drive (30), the sliding device having:
a hollow cylinder (2) comprising an inner peripheral surface, an outer peripheral surface (3) and two opposite end faces (4, 5) on the end side,
it is characterized in that the method comprises the steps of,
the peripheral surface (3) has at least one engagement (6) of a threaded guide (22) of a device (20) for coupling and decoupling two shafts (32, 33) of a bridge drive (30) or has a threaded guide (7) for effecting a guided linear movement of the hollow cylinder (2).
2. The sliding apparatus according to claim 1,
wherein the thread guide (7) is configured as a thread which is introduced into the hollow cylinder (2) or which is mounted on the outer side or peripheral surface (3) of the hollow cylinder (2).
3. The sliding apparatus according to claim 1,
wherein the at least one engagement portion (6) can be configured as a needle, pin or projection, which engagement portion is mounted on the outer side or peripheral surface (3) of the hollow cylinder (2), and
wherein the at least one engagement portion (6) is configured to engage into a threaded guide portion (22) of a device (20) for coupling and uncoupling two shafts (32, 33) of a bridge drive (30) of a hybrid or electric vehicle, so as to cause the hollow cylinder (2) to perform a guided linear movement.
4. Device (20) for coupling and decoupling two shafts (32, 33) of a bridge drive (30) of a hybrid or electric vehicle, said device having:
sliding device (1) according to any one of the preceding claims,
an actuating mechanism (21) for interacting with the sliding device (1),
it is characterized in that the method comprises the steps of,
the device (20) has a threaded guide (22) for engaging at least one engagement portion (6) of the slide (1) or at least one engagement portion (23) for engaging into a threaded guide (7) of the slide (1) to cause the slide (1) to perform a guided linear movement.
5. The device according to claim 4,
wherein the at least one engagement portion (23) is configured as an actuating element (23) which is configured to be movable into and out of a screw guide (7) of the sliding device (1), and
wherein the at least one engagement portion (23) is configured to be linearly movable.
6. The apparatus according to claim 5,
wherein in the retracted switching position of the device (20), the actuating element (23) is retracted to avoid interaction with the threaded guide (7) of the sliding device (1), and
wherein in the extended switching position of the device (20), the actuating element (23) is extended to engage into a threaded guide (7) of the sliding device (1).
7. The device according to claim 4,
wherein the actuating mechanism (21) comprises a hollow cylindrical actuating element (24) on the inner peripheral surface of which a threaded guide (22) of a device (20) for coupling and uncoupling two shafts (32, 33) of a bridge drive (30) of a hybrid or electric vehicle is mounted or constructed.
8. The device according to any of the preceding claims,
wherein two switching states of the sliding device (1) can be realized,
wherein in a first switching state of the sliding device (1), a driven shaft (33) of the bridge drive (30) is coupled to a shaft (32) of the bridge drive (30), and
in the second switching state of the sliding device (1), the driven shaft (33) of the bridge drive (30) is decoupled from the shaft (32) of the bridge drive (30).
9. Bridge drive (30) for a hybrid or electric vehicle, the bridge drive having:
an electric drive machine (31) for driving at least one wheel,
a shaft (32) connected to the electric drive (31),
-a driven shaft (33) for driving at least one wheel, and
-means (20) for coupling and uncoupling two shafts (32, 33) of a bridge drive (30) of a hybrid or electric vehicle according to any of the previous claims.
10. The bridge driving device according to claim 9,
wherein the bridge drive (30) comprises a return spring (34) for the sliding device (1), which returns the sliding device (1) from the second switching state into a first switching state in which the driven shaft (33) is coupled in a rotationally fixed manner to the shaft (32).
CN202310271947.5A 2022-04-14 2023-03-16 Sliding device, device for coupling and decoupling shafts, and bridge drive Pending CN116906461A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102022109198.8A DE102022109198B4 (en) 2022-04-14 2022-04-14 Sliding device and device for coupling and uncoupling two shafts and electric axle drive device for a hybrid or electric vehicle
DE102022109198.8 2022-04-14

Publications (1)

Publication Number Publication Date
CN116906461A true CN116906461A (en) 2023-10-20

Family

ID=88191617

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310271947.5A Pending CN116906461A (en) 2022-04-14 2023-03-16 Sliding device, device for coupling and decoupling shafts, and bridge drive

Country Status (2)

Country Link
CN (1) CN116906461A (en)
DE (1) DE102022109198B4 (en)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10128854A1 (en) 2001-06-15 2002-12-19 Zf Sachs Ag Shift device for gear change box esp. for motor vehicles with sequential shifting up or down without tractive force interruption
DE10203633A1 (en) 2002-01-30 2003-09-04 Zahnradfabrik Friedrichshafen Gear shift device
DE102004045314A1 (en) 2004-09-17 2006-03-30 Piv Drives Gmbh Commercial vehicle with continuously variable drive and / or PTO drive
DE102012223792A1 (en) 2012-12-19 2014-06-26 Zf Friedrichshafen Ag Switching device for a planetary gear
DE102015214534A1 (en) 2015-07-30 2017-02-02 Bayerische Motoren Werke Aktiengesellschaft Claw transmission, in particular for a motor vehicle
EP3737481B1 (en) 2018-01-11 2022-05-04 Lego A/S A toy gearbox
DE102021128917B3 (en) 2021-11-05 2022-08-25 Markus Schaack shift drum

Also Published As

Publication number Publication date
DE102022109198A1 (en) 2023-10-19
DE102022109198B4 (en) 2024-02-01

Similar Documents

Publication Publication Date Title
JP4461582B2 (en) Driving force switching mechanism
EP2143978B1 (en) Sequential control device with rotating drum for engaging gears in a mechanical gearbox of a motor vehicle, particularly of a motor car
US8037984B2 (en) Four-wheel-drive-vehicle driving force distribution apparatus
JP5538180B2 (en) Driving force distribution device
US9464714B2 (en) Gear shifting system and gear shifting element for a gear shifting system
US20210207710A1 (en) Actuator arrangement for electric drive
CN116906461A (en) Sliding device, device for coupling and decoupling shafts, and bridge drive
CN110345248B (en) Parking mechanism for vehicle
KR920001209B1 (en) Uniaxial type starter motor
KR102449046B1 (en) Disconnector apparatus
US11701960B2 (en) Actuator arrangement and transmission arrangement
RU2756700C1 (en) Transmission shift actuator mechanism
JP5888918B2 (en) Actuator control device
JP5641871B2 (en) Driving force distribution device
CN108138953B (en) Switching device and drive unit for a motor vehicle
EP3851705A1 (en) Vehicular differential assembly
US11619300B2 (en) Vehicle transmission
JP2006038091A (en) Actuator
CN116507832A (en) Coupling device for coupling and/or decoupling a gear to and/or from a shaft and transmission having a corresponding coupling device
CN216478865U (en) Parking locking device for electric automobile and electric automobile
JPS6387317A (en) Two-wheel and four-wheel drive mode change-over device for four-wheel drive vehicle
US6296070B1 (en) Transfer device in a four-wheel drive vehicle
CN117693435A (en) Coupling device for a differential of a motor vehicle
US20230296141A1 (en) Rotary power transmission device with actuator retention feature
WO2023165705A1 (en) Gear shift actuator

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication