Actuating gear for actuator operation

Abstract

The invention relates to an actuating gear (1) for actuator operation, the actuating gear comprising at least the following components: - a shaft connection (2) for receiving a torque; - an actuating shaft (3) for delivering a torque between two end positions, forming an angle of rotation (4) of less than 360°; and - a pin gear (5) having a crank (6) and a crank partner (7), wherein the crank partner (7) has a slot (8) in which a crank pin (9) of the crank (6) is torque-transmittingly received, wherein the crank (6) is torque-resistently connected to the shaft connection (2) and the crank partner (7) is torque-resistently connected to the actuating shaft (3). The actuating gear (1) is characterised in particular in that, in at least one of the end positions, the crank (6) is positioned at an angle of between 75° and 105° relative to the current portion (10) of the slot (8). The proposed actuating gear, in conjunction with a rotary drive, enables a compact and simple design with self-locking, end stops, and an advantageous non-linear torque curve.

Description

[0001] Actuator for actuator operation

[0002] The invention relates to an actuating gear for actuator operation, as well as an actuating device with such an actuating gear for delivering an actuating force.

[0003] With the increasing electrification of systems in motor vehicles, and especially in their powertrains, individual small actuator units are in demand for various tasks. The goal is to be able to use a drive with high speed and low torque, even when high torque is required for the respective task. A control gear is connected to this actuator unit as a separate or integral unit for the purpose of translating or converting the (usually too low) drive torque into a control torque or control force.

[0004] Corresponding actuators with relevant actuators are known, for example, from the disclosures CN 11 2943 880 A, JP 2012 172 706 A, US 9 976 577 B2 and WO 2020 225 582 A1 .

[0005] Among other things, such actuating gears can be used to operate a parking lock, to decouple a drive shaft from the output (for example, a second so-called e-axle of an electric vehicle), for example by means of a dog clutch, or to change a gear in a manual transmission (for example, a two-speed transmission of a so-called e-axle). Some such actuating gears have a limited angle of rotation over which they must deliver a torque or actuating force. There are therefore two end positions for this angle of rotation, which must be detected by sensors. Due to safety concerns, commutative angular position detection on the rotor shaft of a commutated electric drive or a similar measure on the rotor shaft of a different type of electric drive of the actuator unit is often not sufficient.Even with a (for example hydraulic) piston drive of the actuator unit, it is not possible, not sufficient or not permissible to use the end stops of the piston stroke simultaneously as end positions.

[0006] On the contrary, a position sensor is then required, either in addition to or for other purposes, to detect the positions of the actuator shaft of the actuator gear. Currently, this requires complex cabling because the position sensor and the control board are located far apart. Such cabling is very complex, both in terms of the materials used and the assembly.

[0007] Based on this, the present invention is based on the object of at least partially overcoming the disadvantages known from the prior art. The features of the invention are derived from the independent claims, for which advantageous embodiments are presented in the dependent claims. The features of the claims can be combined in any technically reasonable manner, whereby the explanations from the following description as well as features from the figures, which comprise additional embodiments of the invention, can also be consulted for this purpose.

[0008] The invention relates to an actuating gear for actuator operation, comprising at least the following components:

[0009] - a shaft connection for absorbing a torque;

[0010] - an actuating shaft for delivering a torque between two end positions with an included angle of rotation of less than 360°; and

[0011] - a pin gear with a crank and a crank partner, wherein the crank partner has a slot in which a crank pin of the crank is received in a torque-transmitting manner, wherein the crank is connected to the shaft connection and the crank partner is connected to the actuating shaft in a torque-resistant manner.

[0012] The actuating gear is primarily characterized in that, in at least one of the end positions, the crank is positioned at an angle between 75° and 105° to the current section of the slot. Reference will be made below to the stated axis of rotation when, without explicit indication to the contrary, the axial direction, radial direction, or the direction of rotation and corresponding terms are used. Ordinal numbers used in the preceding and following descriptions serve only to clearly distinguish them and do not reflect any order or ranking of the designated components. An ordinal number greater than one does not necessarily mean that another such component must be present.

[0013] The actuating gear proposed here is designed to exert an actuating torque (or an actuating force via a lever) via a rotary movement or pivoting movement between two end positions over a rotation angle of less than one complete revolution (360° [three hundred and sixty degrees of 360°]). For example, the rotation angle is less than half a revolution (180°), less than a quarter revolution (90°), for example, a sixth revolution (60°) or less. The pin gear used here also creates a non-linear relationship between the actuating torque delivered by the drive shaft connected to the shaft connection and the actuating torque delivered via the actuating shaft. This is advantageous for some applications that require, for example, a relatively higher actuating torque in at least one end position and a relatively higher angular velocity at least between the end positions.

[0014] For this purpose, the actuator proposed here comprises a shaft connection rotatable about a drive axis, to which a drive shaft (for example, the rotor shaft with a rotor axis of an electric drive motor) can be connected in a torque-transmitting manner. For example, such a shaft connection is a polygonal profile or a spline. Alternatively, the shaft connection is formed integrally with a rotor shaft.

[0015] The actuating shaft is rotatable about an actuating axis, specifically by a rotation angle as specified above between the two end positions. In one embodiment, the actuating shaft comprises a connection to a device to be actuated, for example, a gear, teeth for a spline, and / or a lever.

[0016] The pin gear is designed for the non-linear transmission of torque from a drive shaft connected via the shaft connection of the actuating gear. On the one hand, this results in an unequal transmission ratio due to the change in the relative lever distance and, on the other hand, self-locking can be set, in this case preferably only in the two end positions. A pin gear consists of a crank with a crank pin that engages in a (swing arm) slot of a wheel or a swing arm (hereinafter referred to as the crank partner). For example, the pin gear is a so-called Geneva cross gear or an inner pin gear. The axes of rotation (here the drive axis and the actuating axis) are not congruent, preferably merely parallel to one another.This means that the torque-transmitting crank pin moves radially in the slot relative to the axis of rotation of the crank partner, and thus the lever distance varies depending on the rotational position of the crank.

[0017] Self-locking can be achieved by positioning the crank perpendicular to the current section of the slot in the respective end position to be locked. In this state, it is no longer possible (with design forces) to rotate the crank using a torque applied to the crank partner, because there is no lever there, at least in the theoretical design, and at most a negligible lever in the technical design. Alternatively, a deviation of up to + / - 15°, preferably only up to + / - 10°, and particularly preferably only up to + / - 5° is possible, depending on the respective friction coefficient and / or the applied (design) forces or torque. It should be noted that the angles specified here are 360° for a full revolution.Furthermore, it should be noted that the included angle in the respective end position is preferably less than or equal to 90°, which faces the (reverse) direction of rotation from the current end position. It should be noted that the crank is (technically) aligned perpendicular to the slot or at least to its current section when the shortest (imaginary) connecting line between the axis of rotation of the crank (drive axis) and the center of the crank pin (i.e. the lever of the crank) is perpendicular to the tangent of the movement path (in the current, infinitesimal section) within the slot. In the case of a straight slot, i.e. a straight movement path in the coordinate system moving with the slot, the crank is aligned perpendicular to the entire slot in the perpendicular state.

[0018] In a first embodiment of the actuating gear according to the invention, it is proposed that the crank pin is arranged within the slot in every position, wherein the slot is closed at both ends.

[0019] In this design, unlike a classic Geneva-type gear, which is typically designed for continuous motion—i.e., for countless revolutions and without predetermined end positions—the crank pin is always within the slot of the crank partner during normal operation. This significantly limits the angle of rotation.

[0020] In a preferred embodiment, the slot is closed on both sides, unlike in a classic Geneva gear or inner pin gear. It should be noted that the end faces are defined by the path of the crank pin in the slot, i.e. the crank pin approaches a first of the end faces in one direction of rotation and approaches the second end face in the other direction of rotation. In another definition, the slot is designed with an extension for guiding the movement of the crank pin, which is preferably the greatest extension of the slot, and the end faces are aligned transversely to this guided movement. In one embodiment, an (end) stop for the crank pin is formed by means of at least one of the end faces.It is further proposed in the first embodiment of the actuating gear according to the invention that movement of the crank partner in one of the two directions of rotation is blocked by means of at least one of the closed end sides.

[0021] In this embodiment, regardless of the possibility of self-locking, but preferably simultaneously in the self-locking state (i.e., with the crank approximately or exactly perpendicular to the slot), the crank pin is blocked by the corresponding (closed) end face in any movement (i.e., rotation around the crank's axis of rotation) beyond this end face. This generates a torque jump, which can be clearly registered by a motor controller of a connected actuator unit. In one embodiment, a separate sensor is then not required to reliably determine that the corresponding end position has been reached.

[0022] As already indicated above, the end stop formed by the closed end side, i.e. where the respective direction of rotation is blocked, is preferably positioned in accordance with the respective (preferably both) end positions.

[0023] In a preferred embodiment, the same end face is designed as an end stop for both directions of rotation of the crank. The opposite (optionally also closed) end face is then spaced far enough from the position of the crank pin closest to this end face that the crank pin can move away from this end face again, thus allowing it to continue rotating.

[0024] In a second, alternative embodiment of the actuating gear according to the invention, it is proposed that the pin gear is housed in a gear housing and the actuating shaft is rotatably supported by means of exclusively a single rolling bearing in the gear housing, wherein the shaft connection is rotatably supported by means of exclusively a single rolling bearing in the gear housing.

[0025] In this embodiment, a gear housing provides support for the actuating shaft and preferably also for the shaft connection (i.e., beyond the pin gear). In one embodiment, this is achieved by at least one plain bearing or roller bearing. In a preferred embodiment, a single roller bearing is provided for the actuating shaft and / or the shaft connection, and particularly preferably, no other support is provided, i.e., no further support (e.g., in the form of a plain bearing). A second bearing is not required for the shaft connection because, for example, the shaft connection is sufficiently rotationally supported by the drive shaft connected to it and its further bearing (e.g., a roller bearing), which acts as an adjusting device in the assembled state (see below). Depending on the prevailing forces, a second bearing is not absolutely necessary for the actuating shaft.Preferably, the rolling bearing in question is designed as a deep groove ball bearing. Alternatively or additionally, an additional rotational support is provided in the respective installation situation, for example, at the point on the actuating shaft opposite the pin gear (preferably the furthest away).

[0026] It should be noted that a rotational support, as used here, means a fixation with at least the degree of freedom of rotation about a respective rotational axis. In one embodiment, axial movement is still possible if the bearing is designed as a so-called floating bearing, and correspondingly, no axial movement is possible if it is a fixed bearing or a clamped bearing.

[0027] It is further proposed in an advantageous embodiment of the second alternative of the actuating gear according to the invention that the crank pin is arranged within the slot in every position, wherein the slot is preferably closed at both ends.

[0028] In an advantageous embodiment of the second alternative of the actuating mechanism according to the invention, it is further proposed that movement of the crank partner in one of the two directions of rotation be blocked by at least one of the closed end faces. According to a further aspect, an actuating device for delivering an actuating force is proposed, comprising at least the following components:

[0029] - an actuator unit with a drive shaft for providing a torque; and

[0030] - a control module for controlling the actuator unit;

[0031] - an actuating gear according to an embodiment as described above, wherein the drive shaft is connected to the shaft connection in a torque-transmitting manner.

[0032] The actuating device proposed here comprises an actuating gear according to an embodiment as described above and an actuator unit by means of which a torque for driving the actuating gear can be provided. The actuator unit can be controlled by means of a control board, which is preferably a component of the actuator unit. The control board itself or a further sensor detects the rotational speed and / or the torque directly or indirectly, for example by means of an angle sensor and / or (in the case of an electric drive motor) a current flow measurement. With the corresponding measurement signal, the control board releases a corresponding current flow or voltage to supply the actuator unit with power or, in a hydraulic embodiment, for example, to control a control valve (if required).A torque of the actuator unit can be provided to the crank via the torque-transmitting (e.g. one-piece) connection between the drive shaft of the actuator unit and the shaft connection of the actuating gear.

[0033] By positioning the crank of the actuating gear in at least one of the end positions (approximately or exactly) perpendicular to the current section of the slot, self-locking is achieved in the respective end position, as described above. This end position is thus held by the actuator unit without torque, i.e. without power output. Preferably, a closed end side of the slot is also configured at (preferably exactly) the respective end position as an end stop, i.e. to block further rotation of the crank. This means that reaching the respective end position can be registered solely with the sensors of the actuator unit, preferably the control board. An additional sensor is therefore not necessary, or a redundant measurement can be carried out using an additional sensor.

[0034] It is further proposed in an advantageous embodiment of the actuating device that the control module comprises an opening through which the drive shaft and / or the shaft connection protrudes.

[0035] In this embodiment, the control board is located on the side of the actuator gear (unlike usual). Due to the manufacturing technology, the control board is generally most cost-effective as a flat plate with integrated microelectronics, plugged-on and / or soldered electronic elements, such as processor(s), electrical capacitor(s), electronic switches, sensor(s), and / or electronic connectors. Due to this design, the surface area of ​​such a control board is often very large and, along with the stator, largely determines the size of such an actuator unit. To ensure good accessibility from the rear of the actuator unit, such a control board is therefore located behind the stator. The front side is the side of the actuator unit facing the actuator gear.The (opposite) rear side is the side of the actuator unit which is facing away from the actuating gear and is often arranged at the location of use in a gearbox housing (e.g. a manual gearbox) or even outside a gearbox housing.

[0036] In contrast, here it is proposed that the control module has an opening so that the drive shaft with its shaft connection coming from the motor side and / or, when used in an actuating gear, a gear shaft (here the crank) coming from the transmission side with its shaft connection corresponding to the torque-transmitting connection protrudes through this opening. This places the control module closer to the actuating gear, thus shortening a communicating connection with a sensor (e.g., for position detection and / or speed detection) of the actuating gear. Alternatively or additionally, the power connection (relative to the drive shaft or its drive axis) can be placed next to the stator, thus enabling a compact design.It should be noted that the opening of the control module is aligned transversely to the drive axis, preferably the drive axis is aligned normal to a plane spanned by the control module.

[0037] It is further proposed in an advantageous embodiment of the actuating device that a sensor on the transmission side of the control module is provided for the actuating gear, wherein the sensor is preferably directly connected to the control module in a communicating manner.

[0038] Here, it is proposed that a sensor be provided, which is configured, for example, solely or redundantly, to detect the position of the actuating shaft. In this embodiment, this sensor is part of the actuator unit. The sensor is, for example, fixed in the actuator housing and / or fixed to the control module.

[0039] Alternatively, the sensor in question is a separate component or part of the actuator. In this case, the sensor is preferably connected to the control module by plugging in complementary electronic contacts for communication.

[0040] Regardless of the embodiment, the sensor in question is preferably connected to the control module without the use of a cable. For example, the sensor is plugged and / or soldered to the control module.

[0041] It is further proposed in an advantageous embodiment of the actuating device that the actuator unit is housed in an actuator housing and the pin gear is housed in a gear housing, wherein the actuator housing and the gear housing are connectable to one another at a parting plane, wherein preferably the sensor is housed in the gear housing according to an embodiment according to the above description.

[0042] In this embodiment, an actuator housing and a gear housing are provided, with the actuator housing being designed like a housing pot, which does not completely enclose the components of the actuator unit. Rather, the receiving space of the actuator housing is open. The pot opening is preferably arranged on the module side, with the pot opening of the control module particularly preferably being (almost) completely covered. Then, only a passage through the opening of the control module to the actuating gear is formed.

[0043] From the perspective of the actuator unit, the gear housing forms a type of housing cover, by means of which the components of the actuator unit are preferably completely housed when the actuator housing (housing pot) and the gear housing (housing cover) are assembled together. The housed components are then protected against the ingress of dirt and / or disruptive liquids. At least part of the actuating gear is housed in the gear housing (housing cover), preferably all of its components with the exception of the actuating shaft, which projects outwards in order to carry out a desired actuation. The actuating shaft is designed, for example, to project through a housing opening in the gear housing, wherein a (rotationally acting) dynamic seal is preferably provided in this housing opening.

[0044] The part of the actuating gear accommodated by the gear housing (housing cover), i.e. the components accommodated therewith, are, for example (at least over a section), the shaft connection, one or more bearing elements for rotational support, the pin gear, and / or a sensor for the actuating gear. Alternatively or additionally, a sensor is a component of the actuator unit, even if the measuring function relates to the crank and / or the actuating shaft. In one embodiment, a section of the crank with its shaft connection protrudes into the actuator housing (housing cup) and / or a section of the drive shaft protrudes into the gear housing (housing cover). In an advantageous embodiment of the actuator unit, it is further proposed that the drive shaft of the actuator unit be rotatably, and preferably axially, mounted in the actuator housing exclusively by means of a single rolling bearing.

[0045] In this embodiment, a (third) rotational support for the drive shaft is only created upon assembly with the actuator gear. Preferably, the rolling bearing, for example a deep groove ball bearing, is also configured to axially support the drive shaft. In an alternative embodiment, no rolling bearing is provided, but rather one or more plain bearings. A bearing arranged in the actuator housing that provides rotational (and preferably axial) support is preferably provided at the end.

[0046] In one embodiment, a bearing, such as a plain bearing or a needle bearing, is provided within the opening of the control board for rotational support (and optionally also axial support, preferably according to a fixed-loose bearing arrangement). Alternatively or additionally, such an additional bearing (such as the second roller bearing described above) is a component of the actuating gear. Further alternatively, such a second bearing is not provided; instead, only an additional support is provided within the actuating gear, such as in the gear housing (such as the second roller bearing described above).

[0047] The invention described above is explained in detail below against the relevant technical background with reference to the accompanying drawings, which show preferred embodiments. The invention is in no way limited by the purely schematic drawings, whereby it should be noted that the drawings are not to scale and are not suitable for defining proportions. It is shown in

[0048] Fig. 1 : Adjusting device in a perspective view;

[0049] Fig. 2: the adjusting device according to Fig. 1 in a side view;

[0050] Fig. 3: the actuating device according to Fig. 2 in a sectional view; Fig. 4: a pin gear of the actuating gear according to Fig. 3 in a sectional view; and Fig. 5: the pin gear of the actuating gear according to Fig. 4 in an axial plan view.

[0051] Fig. 1 shows a perspective view of an actuating device 19. The actuating device 19 comprises an actuator unit 20 and an actuating gear 1, wherein the actuator unit 20 comprises an actuator housing 26 and a power connection 23. The actuator unit 20 is configured to drive the actuating device 19. The actuating gear 1 comprises a gear housing 16, a (purely optional) sensor 25, and an actuating shaft 3.

[0052] The actuating shaft 3 is rotatable about an actuating axis 28, specifically by a rotation angle 4 between two end positions (see Fig. 5). In this exemplary embodiment, the actuating shaft 3 includes a connection to a device to be actuated, here, for example, a gear or teeth for a spline. Directly adjacent to the actuating shaft 3 is the sensor 25 (for example, a Hall sensor), which is designed to detect the position of the actuating shaft 3.

[0053] The gear housing 16 forms with the actuator housing 26 a multi-part housing of components for transmitting torque from the actuator unit 20 to the actuating gear 1.

[0054] Fig. 2 shows a side view of the actuating device 19 according to Fig. 1. Here, it can be seen that the actuator housing 26 creates a housing for the components, which are thus protected against the ingress of dirt and / or interfering liquids during operation. Furthermore, a drive axis 29 extends within the actuator unit 20, which runs parallel and offset from the actuation axis 28 (horizontally as shown). This is explained in more detail below with reference to Fig. 3.

[0055] The actuating gear 1 comprises, in addition to the actuating shaft 3, a pin gear 5, which includes a crank 6 and a crank partner 7 (here a rocker). The pin gear 5 is explained in more detail with reference to Fig. 4 and Fig. 5. Fig. 3 shows a sectional view of the actuating device 19 according to Fig. 2. The actuator unit 20 can be controlled by means of a control module 22 (here purely optionally designed as a control board), which is a component of the actuator unit 20. The control module 22 provides a current flow (from the power connection 23) or voltage to supply the actuator unit 20 with power current as a result of a corresponding measurement signal. A torque of the actuator unit 20 can be provided to the crank 6 via the torque-transmitting (e.g., one-piece) connection between a drive shaft 21 of the actuator unit 20 and the shaft connection 2 of the actuating gear 1.The actuator housing 26 of the actuator unit 20 can be connected to the gear housing 16 (not shown here, see Fig. 1) of the actuating gear 1 at a parting plane 27. Adjacent to this parting plane 27 is the control module 22 (here a control board), which faces the actuator unit 20 with its motor side 31 and the actuating gear 1 with its gear side 32.

[0056] In this embodiment, the actuator unit 20 comprises a stator 30, which, for example, has windings for generating a magnetic field. The drive shaft 21 is, for example, permanently magnetic, so that a torque can be provided at the drive shaft 21. The control module 22 has an opening 24 such that a gear shaft (here the crank 6) coming from the gear side 32, with its shaft connection 2 corresponding to the torque-transmitting connection, protrudes through this opening 24. This places the control module 22 closer to the actuating gear 1, thus creating a direct, communicating connection without cables with the sensor 25 (see Fig. 1) of the actuating gear 1.

[0057] By means of the shaft connection 2 of the actuating gear 1, the torque provided by the actuator unit 20 can be transmitted to the crank 6 of the pin gear 5. In this embodiment, the shaft connection 2 has a toothing which engages with corresponding toothings within the drive shaft 21, thus enabling torque transmission from the actuator unit 20 to the actuating gear 1. In this exemplary embodiment, the drive shaft 21 is rotationally supported on the actuator housing 26 by means of a (third) rolling bearing 13. The shaft connection 2 is in turn supported on the gear housing 16 (not shown here) by means of a (second) rolling bearing 18 of the pin gear 5. The actuating shaft 3 is likewise supported on the gear housing 16 by means of the first rolling bearing 17.

[0058] In addition to the crank 6, the pinion gear 5 also includes a crank partner 7 (here, a swing arm). The pinion gear 5 is explained in more detail in the following descriptions.

[0059] Fig. 4 shows a sectional view of a pinion gear 5 of the actuating gear 1 according to Fig. 3. The actuating gear 1 is designed to exert an actuating torque (or an actuating force via a lever) via a rotary or pivoting movement of the actuating shaft 3 between two end positions over a rotation angle 4 of less than a quarter of a revolution (less than 90° [ninety degrees of 360°]) (see Fig. 5). The pinion gear 5 is arranged (purely optionally) axially directly adjacent to the first roller bearing 17.

[0060] The pin gear 5 is designed for the non-linear transmission of torque from a drive shaft 21 connected via the shaft connection 2 of the actuating gear 1, whereby, on the one hand, an unequal transmission ratio results due to the change in a relative lever distance and, on the other hand, a self-locking function can be set. In a pin gear 5, a crank 6 with a crank pin 9 is provided, which engages in a (swing arm) slot 8 of a crank partner 7 (here a swing arm). The axes of rotation (here the drive axis 29 and the actuation axis 28) are not congruent, but merely parallel to one another (see Fig. 3). This results in the torque-transmitting crank pin 9 moving radially in the slot 8 relative to the axis of rotation of the crank partner 7, thus creating a lever distance that varies depending on the rotational position of the crank 6.The lever distance here varies between an inner end side 11 and an outer end side 12 of the (purely optional) slot 8 which is closed on both sides.

[0061] Fig. 5 shows an axial plan view of the pinion gear 5 of the actuating gear 1 according to Fig. 4. Due to the closed slot 8, the crank pin 9 is always movably arranged within the slot 8 of the crank partner 7. This significantly limits the angle of rotation 4 of the pinion gear 5.

[0062] It should be noted that the end faces 11, 12 of the slot 8 are defined by the path of the crank pin 9 in the slot 8, i.e., the crank pin 9 approaches the first end face 11 in one direction of rotation 14 and the second end face 12 in the other direction of rotation 15. Self-locking of the pin gear 5 is achieved here by positioning the crank 6 (approximately or exactly as shown here) perpendicular to the current section 10 of the slot 8 in the respective end position to be locked. In this state, it is no longer possible (with design forces) to rotate the crank 6 via a torque applied to the crank partner 7, because there is no lever there, at least in the theoretical design, and at most a negligible lever in the technical design.

[0063] In this embodiment, regardless of the possibility of self-locking, but at the same time in the self-locking state (i.e. with the vertical alignment of crank 6 to slot 8), the crank pin 9 is blocked by means of the corresponding (closed inner end face 11) in a movement (i.e. rotation about the actuating axis 28 of the actuating shaft 3 or crank 6) beyond this end face 11. This generates a torque jump which can be clearly registered by a motor control of a connected actuator unit 20.

[0064] As already indicated above, the end stop formed by the closed end face 11, i.e., where the respective direction of rotation 14, 15 is blocked, is preferably positioned in correspondence with the respective (preferably both) end positions. With the actuator proposed here, in conjunction with a rotary drive, a compact and simple design with self-locking, end stops, and a favorable non-linear torque curve can be achieved.

[0065] List of reference symbols

[0066] Actuating gear Shaft connection Actuating shaft Angle of rotation Pin gear Crank

[0067] Crank Partner Slot

[0068] Crank pin section inner end side outer end side third rolling bearing first direction of rotation second direction of rotation gearbox housing first rolling bearing second rolling bearing actuating device actuator unit drive shaft control module

[0069] Power connection opening

[0070] Sensor Actuator housing Parting plane Actuating axis Drive axis Stator

[0071] Engine side Gearbox side

Claims

Patent claims 1 . Actuating gear (1 ) for actuator operation, comprising at least the following components: - a shaft connection (2) for absorbing a torque; - an actuating shaft (3) for delivering a torque between two end positions with an included angle of rotation (4) of less than 360°; and - a pin gear (5) with a crank (6) and a crank partner (7), wherein the crank partner (7) has a slot (8) in which a Crank pin (9) of the crank (6) is received in a torque-transmitting manner, wherein the crank (6) is connected to the shaft connection (2) and the crank partner (7) is connected to the actuating shaft (3) in a torque-resistant manner, wherein in at least one of the end positions the crank (6) is positioned at an angle between 75° and 105° to the current section (10) of the slot (8), wherein the current section (10) is formed by the tangent of the movement path of the crank pin (9) in the slot (8), characterized in that the crank pin (9) is arranged within the slot (8) in every position, the slot (8) is closed at both end sides (11, 12), and by means of at least one of the closed end sides (11) a movement of the crank partner (7) in one of the two directions of rotation (14, 15) is blocked.

2. Actuating gear (1) for actuator operation, comprising at least the following components: - a shaft connection (2) for absorbing a torque; - an actuating shaft (3) for delivering a torque between two end positions with an included angle of rotation (4) of less than 360°; and - a pin gear (5) with a crank (6) and a crank partner (7), wherein the crank partner (7) has a slot (8) in which a Crank pin (9) of the crank (6) is accommodated in a torque-transmitting manner, wherein the crank (6) is connected to the shaft connection (2) and the crank partner (7) is connected to the actuating shaft (3) in a torque-resistant manner, wherein in at least one of the end positions the crank (6) is positioned at an angle between 75° and 105° to the current section (10) of the slot (8), wherein the current section (10) is formed by the tangent of the movement path of the crank pin (9) in the slot (8), characterized in that the pin gear (5) is housed in a gear housing (16) and the actuating shaft (3) is rotatably supported in the gear housing (16) by means of exclusively a single rolling bearing (17), and the shaft connection (2) is rotatably supported in the gear housing (16) by means of exclusively a single rolling bearing (18).

3. Actuating gear (1) according to claim 2, wherein the crank pin (9) is arranged in each position within the slot (8), wherein preferably the slot (8) is closed at both end sides (11, 12).

4. Actuating gear (1) according to claim 3, wherein a movement of the crank partner (7) in one of the two directions of rotation (14, 15) is blocked by means of at least one of the closed end sides (11).

5. Actuating gear (1) according to claim 1, wherein the pin gear (5) is housed in a gear housing (16) and the actuating shaft (3) is rotatably supported in the gear housing (16), preferably by means of only a single rolling bearing (17), wherein preferably the shaft connection (2) is rotatably supported in the gear housing (16), preferably by means of only a single rolling bearing (18).

6. Actuating device (19) for delivering an actuating force, comprising at least the following components: - an actuator unit (20) with a drive shaft (21) for providing a torque; and - a control module (22) for controlling the actuator unit (20); - an actuating gear (1) according to one of claims 1 to 5, wherein the drive shaft (21) is connected to the shaft connection (2) in a torque-transmitting manner.

7. Actuating device (19) according to claim 6, wherein the control module (22) comprises an opening (24) through which the drive shaft (21) and / or the shaft connection (2) protrudes.

8. Actuating device (19) according to claim 6 or claim 7, wherein a sensor (25) for the actuating gear (1) is further provided on the transmission side of the control module (22), wherein the sensor (25) is preferably directly connected in a communicative manner to the control module (22).

9. Actuating device (19) according to claim 8, wherein the actuator unit (20) is housed in an actuator housing (26) and the pin gear (5) is housed in a gear housing (16), wherein the actuator housing (26) and the gear housing (16) are connectable to one another at a parting plane (27), and wherein the sensor (25) is housed in the gear housing (16).

10. Actuator unit (20) according to claim 9, wherein the drive shaft (21) of the actuator unit (20) is rotatably, and preferably axially, mounted in the actuator housing (26) exclusively by means of a single rolling bearing (13).

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