Actuating gear for actuator operation

Abstract

The present invention relates to an actuation gear (1) for actuating an actuator, the actuation gear (1) comprising at least the following components: a shaft connection part (2) for receiving torque, an actuation shaft (3) for transmitting torque between two end positions forming a rotation angle (4) of less than 360°, and a pin gear (5) having a crank (6) and a crank partner (7), the crank partner (7) having a slot (8) in which a crank pin (9) of the crank (6) is received so as to transmit torque, the crank (6) being connected to the shaft connection part (2) in a torque-resistant manner, and the crank partner (7) being connected to the actuation shaft (3) in a torque-resistant manner. The actuation gear (1) is particularly characterized in that in at least one of the end positions, the crank (6) is positioned at an angle of 75° to 105° relative to the current part (10) of the slot (8). The proposed actuation gear together with the rotary drive allows for a compact and simple construction with self-locking, end stops and an advantageous non-linear torque curve.

Description

[Technical Field]

[0001] The present invention relates to an actuation gear for actuator operation and to an actuation device having such an actuation gear for delivering an actuation force. [Background technology]

[0002] With the increasing electrification of systems in automobiles, especially in the powertrain of automobiles, individual small actuator units are required to fulfill various tasks. The aim is to be able to use drives with high speed and low torque, even when high torque is required for each task. An actuation gear is connected to this actuator unit, either as a separate or integral unit, in order to convert or translate the drive torque (which is usually too low) into an actuation torque or actuation force.

[0003] Corresponding actuators with associated actuation drives are known, for example, from the disclosures of Chinese Patent Application Publication No. 112943880, Japanese Patent Publication No. 2012-172706, US Patent No. 9976577, and WO 2020 / 225582.

[0004] Such actuation gears can be used, inter alia, to operate a parking lock, for example, to decouple a drive shaft from an output (e.g., a second so-called e-axle in an electric vehicle) by means of a dog clutch, or to change gears in a manual transmission (e.g., a two-speed transmission in a so-called e-axle). Some of these actuation gears have a limited rotation angle through which they must deliver torque or actuation force. Therefore, for this rotation angle, there are two end positions that must be detected by a sensor. Due to safety concerns, in many cases, commutation angle 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 an actuator unit, is not sufficient. Even in piston drives (e.g., hydraulic) of actuator units, it is not possible, sufficient, or permissible to simultaneously use the end stops of the piston stroke as end positions.

[0005] Instead, a position sensor is needed additionally to detect the position of the actuation gear's actuation shaft, or for other purposes only. Currently, this requires complex cabling, since the position sensor and the control board are far apart. Such cabling involves a great deal of effort, both in terms of the materials used and the installation. Summary of the Invention [Problem to be solved by the invention]

[0006] Proceeding therefrom, it is an object of the present invention to at least partially overcome the drawbacks known from the prior art. The features according to the invention arise from the independent claims, in which advantageous embodiments are set out in the dependent claims. The features of the claims can be combined in any technically reasonable way, and features from the illustrations and drawings in the following description, including additional embodiments of the invention, can also be used for this purpose. [Means for solving the problem]

[0007] The present invention relates to an actuation gear for actuator operation, the actuation gear comprising at least the following components: a shaft connection for receiving torque; an actuation shaft for transmitting torque between two end positions encompassing a rotation angle of less than 360°; - a pin gear having a crank and a crank partner, the crank partner having a slot into which the crank pin of the crank is received so as to transmit torque, the crank being connected to the shaft connection portion in a torque-resistant manner, and the crank partner being connected to the operating shaft in a torque-resistant manner.

[0008] The actuation gear is characterized in that in at least one of its end positions the crank is positioned at an angle of between 75° and 105° relative to the current portion of the slot.

[0009] In the following, unless otherwise specified, when axial, radial or rotational directions and corresponding terms are used, reference is made to the specified axis of rotation. Unless otherwise specified, ordinal numbers used in the preceding and following descriptions are used for distinguishing purposes only and do not indicate the order or ranking of the specified components. An ordinal number greater than 1 does not necessarily imply that additional such components must be present.

[0010] The actuation gear proposed herein is configured to exert actuation torque (i.e., actuation force via a lever) through rotational or pivotal movement between two end positions over a rotational angle of less than one full revolution (360°). For example, the rotational angle may be less than half a revolution (180°), less than a quarter revolution (90°), or even less than a sixth revolution (60°). The pin gear used herein also creates a nonlinear relationship between the drive shaft connected to the shaft connection and the actuation torque delivered via the actuation shaft. This is advantageous, for example, for some applications requiring a relatively high actuation torque at at least one end position and a relatively high angular velocity between at least the end positions.

[0011] For this purpose, the proposed actuation gear is rotatable about a drive axis and comprises a shaft connection part to which a drive shaft (e.g., a rotor shaft with a rotor axis of an electric drive machine) can be connected so as to transmit torque. For example, such a shaft connection part is a polygonal profile or a plug-in toothing. Alternatively, the shaft connection part is formed integrally with the rotor shaft.

[0012] The actuation shaft is rotatable about the actuation axis, i.e. between two end positions through the rotation angle as described above. In one embodiment, the actuation shaft comprises a connection to the device to be actuated, for example a gear, a tooth of a plug-in toothing and / or a lever.

[0013] The pin gear is configured for non-linear transmission of torque from a drive shaft connected via a shaft connection of an actuating gear. On the one hand, unequal transmission ratios exist due to changes in the relative lever distance. On the other hand, in this case, self-locking can preferably only be set in two end positions. A crank with a crank pin is provided on the pin gear, and this crank pin engages in a (swing arm) slot of a wheel or swing arm (hereinafter referred to as crank partner). For example, the pin gear is a Geneva drive or an inner pin gear. The rotation axes (here, the drive shaft and the actuating shaft) do not coincide, but are preferably only parallel to each other. This means that the torque-transmitting crank pin moves radially in the slot relative to the rotation axis of the crank partner, thereby changing the lever distance depending on the rotation position of the crank.

[0014] Self-locking can be achieved by positioning the crank perpendicular to the current portion of the slot at each end position to be locked. In this state, it is no longer possible (with configuration-specific forces) to rotate the crank using torque applied to the crank partner, since there is no lever, at least in the theoretical configuration, and at most a negligible lever in the technical configuration. Alternatively, deviations of up to + / - 15°, preferably up to + / - 10°, and particularly preferably up to + / - 5° are possible, depending on the respective friction coefficient and / or the applied (configuration-specific) force or torque. Note that the angles given here are 360° for a full rotation. Furthermore, note that the angle enclosed by each end position is preferably 90° or less, facing the (reverse) direction of rotation from the current end position.

[0015] Also note that the crank is (technically) aligned perpendicular to the slot, or at least to its current portion, if the shortest (imaginary) connecting line between the crank's axis of rotation (drive shaft) and the center of the crank pin (i.e., the crank's lever) is perpendicular to the tangent of its trajectory (at its current infinitesimal portion) in the slot. In the case of a linear slot, i.e., a linear path of movement in a coordinate system that moves with the slot, the crank is aligned perpendicular to the entire slot in the vertical state.

[0016] In a first embodiment of the actuation gear according to the invention, it is proposed that the crank pins are arranged at each position in the slots, the slots being closed on both end sides.

[0017] In this embodiment, unlike classic Geneva drives, which are usually configured for continuous movement, i.e., for an infinite number of rotations, and without predetermined end positions, the crank pin always remains in the slot of the crank partner during the configuration-specific operation, which significantly limits the rotation angle.

[0018] In a preferred embodiment, the slot is closed on both sides, unlike a classic Geneva drive or inner pin gear. Note that the end sides are defined on the path of the crankpin in the slot, i.e., the crankpin approaches a first of the end sides in one direction of rotation and a second of the end sides in the other direction of rotation. In another definition, the slot is configured with an extension for guiding the movement of the crankpin, this extension preferably being the maximum extension of the slot, and the end sides being aligned laterally with respect to this induced movement. In one embodiment, a (end) stop for the crankpin is formed by at least one of the end sides.

[0019] In a first embodiment of the actuation gear according to the invention, it is further proposed that movement of the crank partner in one of the two directions of rotation is prevented by at least one of the closed end sides.

[0020] In this embodiment, regardless of the possibility of self-locking, and preferably at the same time in the self-locked state (i.e. with the crank aligned almost or exactly perpendicular to the slot), the crank pin is prevented by the corresponding end side (closed) from moving beyond this end side (i.e. from rotating about the rotation axis of the crank). This creates a torque jump that can be clearly recorded by the motor control of the connected actuator unit. In one embodiment, no separate sensor is required to reliably determine that the corresponding end position has been reached.

[0021] As already indicated above, the end stops formed by the closed end sides, i.e. the end stops at which the respective rotation directions are blocked, are preferably positioned according to the respective end positions (preferably both).

[0022] In a preferred embodiment, the same end side is configured as an end stop for both directions of rotation of the crank, and then the opposite end side (possibly closed) is spaced far enough away from the crank pin position closest to this end side that the crank pin can move away from this end side again, i.e., continue to rotate.

[0023] In a second alternative embodiment of the actuation gear according to the invention, it is proposed that the pin gear is accommodated in the transmission housing and that the actuation shaft is rotationally supported in the transmission housing by only a single rolling bearing, and that the shaft connection is rotationally supported in the transmission housing by only a single rolling bearing.

[0024] In this embodiment, the transmission housing forms a support for the actuation 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 or antifriction bearing. In a preferred embodiment, a single antifriction bearing is provided on the actuation shaft and / or the shaft connection, and particularly preferably, no other support is provided, i.e., no additional support (e.g., in the form of a plain bearing). A second bearing can be omitted at the shaft connection, since the shaft connection is sufficiently rotationally supported in the assembled state via the connected drive shaft and its additional bearing (e.g., antifriction bearing), for example, via the actuation device (see below). Depending on the prevailing forces, a second bearing for the actuation shaft is not necessarily required. The antifriction bearing is then preferably configured as a deep groove ball bearing. Alternatively or additionally, an additional rotational support is created in the respective installation situation, for example, at the location of the actuation shaft opposite the pin gear (preferably furthest away).

[0025] It should be noted that a rotary support in the sense used here means a fixation with at least a rotational degree of freedom about the respective axis of rotation. In one embodiment, if the bearing is configured as a so-called loose bearing, axial movements are still possible, whereas if the bearing is a fixed or clamped bearing, axial movements are not possible.

[0026] In an advantageous embodiment of the second alternative embodiment of the actuating gear according to the invention, it is further proposed that the crank pins are arranged at each position in the slots, the slots being preferably closed on both end sides.

[0027] In an advantageous embodiment of the second alternative embodiment of the actuation gear according to the invention, it is further proposed that movement of the crank partner in one of the two directions of rotation is prevented by at least one of the closed end sides.

[0028] According to a further aspect, an actuation device for delivering an actuation force, comprising at least the following components: an actuator unit having a drive shaft for providing a torque; a control module for controlling the actuator unit; An actuation device is proposed, comprising an actuation gear according to the embodiment described above, wherein the drive shaft is torque-transmittingly connected to the shaft connection.

[0029] The proposed actuation device comprises an actuation gear according to the embodiments described above and an actuator unit capable of providing a torque for driving the actuation gear. The actuator unit can be controlled by a control board, which is preferably a component of the actuator unit. The control board itself, or another sensor, detects the speed and / or torque directly or indirectly, for example by angle sensors and / or current measurements (in the case of electrically driven machines). Depending on the corresponding measurement signal, the control board supplies a power supply current to the actuator unit or, in hydraulic embodiments, releases a corresponding current flow or voltage, for example to control a control valve (if required). The torque of the actuator unit can be provided to the crank via a torque-transmitting (e.g., integral) connection between the drive shaft of the actuator unit and the shaft connection of the actuation gear.

[0030] By positioning the crank of the actuation gear in at least one of the end positions perpendicular (almost or exactly) to the current portion of the slot, self-locking at the respective end position is achieved as described above. This end position is therefore held by the actuator unit without torque, i.e., without power output. Preferably, the closed end side of the slot is also set (preferably exactly) at the respective end position as an end stop, i.e., preventing further rotational movement of the crank. This means that reaching the relevant end position can be recorded using only the sensor of the actuator unit, preferably the control board. Therefore, no additional sensor is required, or redundant measurements can be performed using the additional sensor.

[0031] In an advantageous embodiment of the actuation device, it is further proposed that the control module comprises an opening through which the drive shaft and / or the shaft connection protrudes.

[0032] In this embodiment, the control board is located on the side of the actuation gear (unlike the usual way). For reasons of manufacturing technology, the control board is usually most cost-effectively configured as a flat plate with integrated microelectronic, plug-on, and / or soldered electronic elements, such as a processor, electrical capacitors, electronic switches, sensors, and / or electronic connectors. Due to this configuration, the surface area of ​​such a control board is often very large, which determines the size of such an actuator unit in addition to the stator. Therefore, for good accessibility from the rear of the actuator unit, such a control board is located behind the stator. The front side is the side of the actuator unit facing the actuation gear. The (opposite) rear side is the side of the actuator unit facing away from the actuation gear and is often located at the place of use in the transmission housing (e.g., manual transmission) or even outside the transmission housing.

[0033] In contrast, it is proposed here that the control module has an opening through which the drive shaft protrudes at its shaft connection coming from the motor side and / or, when used with an actuation gear, the gear shaft (here, the crank) coming from the transmission side protrudes at its shaft connection corresponding to the torque transmission connection. This means that the control module is closer to the actuation gear, thereby shortening the communication connection with the actuation gear's sensors (e.g., for position detection and / or speed detection). Alternatively or additionally, the power supply current connection (to the drive shaft or its drive shaft) can be located adjacent to the stator, thereby enabling a compact configuration. It should be noted that the opening of the control module is aligned transversely to the drive shaft, which is preferably aligned perpendicular to the plane in which the control module extends.

[0034] In an advantageous embodiment of the actuation device, it is further proposed that a sensor for the actuation gear is provided on the transmission side of the control module, the sensor preferably being directly communicatively connected to the control module.

[0035] Here, it is proposed that a sensor is provided, which is configured independently or redundantly, for example to detect the position of the actuation 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.

[0036] Alternatively, the sensor is a separate component or part of the actuation gear, in which case the sensor is preferably connected to the control module by plugging complementary electronic contacts for communication.

[0037] Regardless of the embodiment, the sensors are preferably communicatively connected to the control module without the use of cables, for example, the sensors are plugged and / or soldered to the control module.

[0038] In an advantageous embodiment of the actuation device, it is further proposed that the actuator unit is accommodated in the actuator housing and the pin gear is accommodated by the transmission housing, the actuator housing and the transmission housing can be connected to each other at the dividing plane, and preferably the sensor is accommodated by the transmission housing according to the embodiment described above.

[0039] In this embodiment, an actuator housing and a transmission housing are provided, and the actuator housing is formed like a housing pot, so that the components of the actuator unit are not completely housed. Rather, the receiving space of the actuator housing is open. The pot opening is preferably arranged on the module side, and the pot opening of the control module is particularly preferably (almost) completely covered. Then, only a passage to the actuation gear is formed through the opening of the control module.

[0040] From the viewpoint of the actuator unit, the transmission housing forms a kind of housing cover, whereby the components of the actuator unit are preferably completely housed when the actuator housing (housing pot) and the transmission housing (housing cover) are assembled together. The housed components are then protected from the ingress of dirt and / or destructive liquids. At least a portion of the actuating gear is housed in the transmission housing (housing cover), and preferably all of its components are housed except for the actuating shaft, which protrudes outward to perform the desired actuation. The actuating shaft is configured to protrude, for example, through a housing opening in the transmission housing, and a dynamic seal (which acts rotationally) is preferably provided in this housing opening.

[0041] The part of the actuating gear received by the transmission housing (housing cover), i.e. the component received therewith, is, for example, (at least in part) a shaft connection, one or more bearing elements for the rotary support, a pin gear, and / or a sensor for the actuating gear. Alternatively or additionally, the 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 part of the crank together with its shaft connection protrudes into the actuator housing (housing pot) and / or a part of the drive shaft protrudes into the transmission housing (housing cover).

[0042] In an advantageous embodiment of the actuator unit, it is further proposed that the drive shaft of the actuator unit is rotatably, preferably axially, mounted in the actuator housing by means of only a single rolling bearing.

[0043] In this embodiment, a (third) rotational support for the drive shaft is only created when the actuation gear is mounted. Preferably, a rolling bearing, for example configured as 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 are provided. The rotationally (and preferably axially) supporting bearings arranged in the actuator housing are preferably provided at the end sides.

[0044] In one embodiment, a rotationally (and optionally also axially, preferably according to a fixed-loose bearing arrangement) supporting bearing, e.g., a plain bearing or needle bearing, is provided within the opening in the control board. Alternatively or additionally, such an additional bearing (e.g., the second rolling bearing described above) is a component of the actuation gear. Further alternatively, no such second bearing is provided, and only further support (e.g., the second rolling bearing described above) is provided within the actuation gear, for example in the transmission housing.

[0045] The invention described above will be explained in detail below against the relevant technical background with reference to the associated drawings showing preferred embodiments. It should be noted that the invention is in no way limited by the use of purely schematic drawings, which are not dimensionally accurate and are not suitable for defining proportions. [Brief explanation of the drawings]

[0046] [Figure 1] FIG. 2 is a perspective view of an actuation device. [Figure 2] FIG. 2 is a side view of the actuation device according to FIG. [Figure 3] 3 is a cross-sectional view of the actuation device according to FIG. 2. [Figure 4] FIG. 4 is a cross-sectional view of a pin gear of the actuation gear according to FIG. 3; [Figure 5] 5 is a plan view in the axial direction of the pin gear of the operating gear according to FIG. 4; DETAILED DESCRIPTION OF THE INVENTION

[0047] 1 shows an actuating device 19 in a perspective view. The actuating device 19 comprises an actuator unit 20 and an actuating gear 1, the actuator unit 20 comprising an actuator housing 26 and a power supply current connection 23. The actuator unit 20 is configured to drive the actuating device 19. The actuating gear 1 comprises a transmission housing 16, a sensor 25 (purely optional) and an actuating shaft 3.

[0048] The actuation shaft 3 can be rotated between two end positions about an actuation axis 28, i.e. about a rotation angle 4 (see FIG. 5). In this embodiment, the actuation shaft 3 is provided with a connection to the device to be actuated, here for example a gear or a tooth of a plug-in toothing. Directly adjacent to the actuation shaft 3 is arranged a sensor 25 (for example a Hall sensor) which is set up to detect the position of the actuation shaft 3.

[0049] Together with the actuator housing 26 , the transmission housing 16 forms a multi-part housing of the components for torque transmission from the actuator unit 20 to the actuating gear 1 .

[0050] In Figure 2, the actuation device 19 according to Figure 1 is shown in a side view. Here, it can be seen that an actuator housing 26 creates a housing for the components, protecting them from the ingress of dirt and / or destructive liquids during operation. In addition, a drive shaft 29 extends within the actuator unit 20, which drive shaft extends parallel to and offset from an actuation shaft 28 (shown horizontally). This will be explained in more detail below with reference to Figure 3.

[0051] In addition to the actuation shaft 3, the actuation gear 1 comprises a pin gear 5, which comprises a crank 6 and a crank partner 7 (here a swing arm). The pin gear 5 will be explained in more detail with reference to Figures 4 and 5.

[0052] FIG. 3 shows the actuation device 19 according to FIG. 2 in a cross-sectional view. The actuator unit 20 can be controlled by a control module 22 (here optionally configured purely as a control board), which is a component of the actuator unit 20. As a result of a corresponding measurement signal, the control module 22 delivers a current flow (from a power supply current connection 23) or a voltage to supply the actuator unit 20 with a power supply current. The torque of the actuator unit 20 can be provided to the crank 6 via a torque-transmitting (e.g., integral) connection between the drive shaft 21 of the actuator unit 20 and the shaft connection 2 of the actuation gear 1. The actuator housing 26 of the actuator unit 20 can be connected to the transmission housing 16 of the actuation gear 1 (not shown here, see FIG. 1) at a dividing plane 27. Adjacent to this dividing plane 27, the control module 22 (here a control board) is arranged, which is connected to its motor side 31 facing the actuator unit 20 and its transmission side 32 facing the actuation gear 1.

[0053] In this embodiment, the actuator unit 20 comprises a stator 30 with, for example, windings for generating a magnetic field. For example, the drive shaft 21 is configured as a permanent magnet, whereby a torque can be provided to the drive shaft 21. The control module 22 has an opening 24 through which the gear shaft (here the crank 6) coming from the transmission side 32 protrudes with its shaft connection 2 corresponding to the torque transmission connection. This means that the control module 22 is closer to the actuation gear 1, which means that a direct, cable-free communication connection can be made with the sensor 25 (see FIG. 1 ) of the actuation gear 1.

[0054] The shaft connection 2 of the actuation gear 1 allows the torque provided by the actuator unit 20 to be transmitted to the crank 6 of the pin gear 5. In this embodiment, the shaft connection 2 has teeth that engage with corresponding teeth in the drive shaft 21, thereby representing the torque transmission from the actuator unit 20 to the actuation gear 1.

[0055] In this embodiment, the drive shaft 21 is rotationally supported on the actuator housing 26 by a (third) rolling bearing 13. The shaft connection 2 is supported on the transmission housing (not shown here) 16 by a (second) rolling bearing 18 of the pin gear 5. Similarly, the actuation shaft 3 is supported on the transmission housing 16 by a first rolling bearing 17.

[0056] In addition to the crank 6, the pin gear 5 also comprises a crank partner 7 (here a swing arm). The pin gear 5 will be explained in more detail in the following description.

[0057] In Figure 4, the pin gear 5 of the actuation gear 1 according to Figure 3 is shown in cross section. The actuation gear 1 is set up to exert an actuation torque (i.e. an actuation force via a lever) via a rotational or pivotal movement of the actuation shaft 3 between two end positions over a rotation angle 4 of less than a quarter turn (less than 90° [90 degrees of 360°]) (see Figure 5). The pin gear 5 is (purely optionally) arranged axially directly adjacent to the first rolling bearing 17.

[0058] The pin gear 5 is configured for non-linear transmission of torque from the drive shaft 21 connected via the shaft connection 2 of the actuating gear 1; on the one hand, unequal transmission ratios exist due to changes in the relative lever distance, and on the other hand, self-locking can be set. In the case of the pin gear 5, the crank 6 is provided with a crank pin 9 which engages in a (swing arm) slot 8 of the crank partner 7 (here, the swing arm). The rotation axes (here, the drive shaft 29 and the actuating shaft 28) do not coincide but are simply parallel to each other (see FIG. 3). This means that the torque-transmitting crank pin 9 moves radially in the slot 8 relative to the rotation axis of the crank partner 7, so that the lever distance changes depending on the rotational position of the crank 6. The lever distance changes between the inner end side 11 and the outer end side 12 of the slot 8, which is closed on both sides (purely optionally).

[0059] In Figure 5, the pin gear 5 of the actuating gear 1 according to Figure 4 is shown in an axial plan view. Due to the closed slot 8, the crank pin 9 is arranged so that it can move continuously within the slot 8 of the crank partner 7. This means that the rotation angle 4 of the pin gear 5 is significantly limited.

[0060] It should be noted that the end sides 11, 12 of the slot 8 are defined on the path of the crank pin 9 within the slot 8, i.e., the crank pin 9 approaches the first end side 11 in one direction of rotation 14 and the second end side 12 in the other direction of rotation 15. The self-locking pin gear 5 is achieved here in that the crank 6 is positioned perpendicular to the current portion 10 of the slot 8 in each end position to be arrested (almost or exactly as shown here). In this state, it is no longer possible (with the forces inherent in the configuration) to rotate the crank 6 using a torque applied on the crank partner 7, since there is no lever, at least in the theoretical configuration, and at most a negligible lever in the technical configuration.

[0061] In this embodiment, regardless of the possibility of self-locking, at the same time in the self-locked state (i.e. with the crank 6 aligned perpendicular to the slot 8), the crank pin 9 is prevented by the corresponding inner (closed) end side 11 from moving beyond this end side 11 (i.e. from rotating about the working axis 28 of the working shaft 3 or crank 6). This creates a torque jump that can be clearly registered by the motor control of the connected actuator unit 20.

[0062] As already indicated above, the end stops formed by the closed end sides 11, i.e. the end stops at which the respective rotation directions 14, 15 are blocked, are preferably positioned according to the respective end positions (preferably both).

[0063] The proposed actuation gear together with the rotary drive allows for a compact and simple construction with self-locking, end stops and an advantageous non-linear torque curve. [Explanation of symbols]

[0064] 1 operating gear 2 Shaft connection 3 Operating shaft 4 Rotation angle 5 pin gear 6 Crank 7 Crank Partners 8 slots 9 crank pin 10 parts 11 Inner end side 12 outer end side 13 Third rolling bearing 14 First rotation direction 15 Second rotation direction 16 Transmission housing 17 First rolling bearing 18 Second Rolling Bearing 19 Actuation Device 20 Actuator Unit 21 Drive shaft 22 Control Module 23 Power current connection 24 Opening 25 sensors 26 Actuator housing 27 Dividing plane 28 Operating shaft 29 Drive shaft 30 Stator 31 Motor side 32 Transmission side

Claims

1. An actuation gear (1) for actuator operation, said actuation gear (1) comprising at least the following components: - a shaft connection (2) for receiving torque; an actuation shaft (3) for delivering torque between two end positions forming a rotation angle (4) of less than -360°; a pin gear (5) having a crank (6) and a crank partner (7), the crank partner (7) having a slot (8) in which a crank pin (9) of the crank (6) is received so as to transmit torque, the crank (6) being connected to the shaft connection part (2) in a torque-resistant manner, and the crank partner (7) being connected to the working shaft (3) in a torque-resistant manner, and in at least one of the end positions, the crank (6) is in a torque-resistant manner with respect to the current part (10) of the slot (8). An actuating gear (1) positioned at an angle between 75° and 105°, the current portion (10) being formed by a tangent to the movement path of the crank pin (9) in the slot (8), characterized in that the crank pin (9) is arranged at each position in the slot (8), the slot (8) is closed at both end sides (11, 12), and movement of the crank partner (7) in one of two directions of rotation (14, 15) is prevented by at least one of the closed end sides (11).

2. An actuation gear (1) for actuator operation, said actuation gear (1) comprising at least the following components: - a shaft connection (2) for receiving torque; an actuation shaft (3) for delivering torque between two end positions forming a rotation angle (4) of less than -360°; a pin gear (5) having a crank (6) and a crank partner (7), the crank partner (7) having a slot (8) in which a crank pin (9) of the crank (6) is received so as to transmit torque, the crank (6) being torque-resistantly connected to the shaft connection part (2) and the crank partner (7) being torque-resistantly connected to the working shaft (3), and in at least one of the end positions, the crank (6) being 75° to the current part (10) of the slot (8).

1. An operating gear (1) in which the pin gear (5) is positioned at an angle of 105° to 105°, and the current portion (10) is formed by a tangent to the movement path of the crank pin (9) in the slot (8), characterized in that the pin gear (5) is accommodated in a transmission housing (16), the operating shaft (3) is rotationally supported in the transmission housing (16) only by a single rolling bearing (17), and the shaft connection portion (2) is rotationally supported in the transmission housing (16) only by a single rolling bearing (18).

3. The crank pins (9) are located at respective positions within the slots (8), 3. An actuating gear (1) according to claim 2, wherein said slot (8) is preferably closed at both end sides (11, 12).

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

5. the pin gear (5) is accommodated in a transmission housing (16), and the actuating shaft (3) is rotationally supported in the transmission housing (16) preferably by only a single rolling bearing (17); 2. An operating gear (1) according to claim 1, wherein the shaft connection (2) is preferably rotationally supported in the transmission housing (16) by means of only a single rolling bearing (18).

6. An actuation device (19) for delivering an actuation force, comprising at least the following components: - an actuator unit (20) having a drive shaft (21) for providing a torque; a control module (22) for controlling said actuator unit (20); - an actuation gear (1) according to any one of claims 1 to 5, An actuation device (19) in which the drive shaft (21) is torque-transmittingly connected to the shaft connection part (2).

7. 7. An actuation 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) protrude.

8. 8. An actuation device (19) according to claim 6 or 7, wherein a sensor (25) for the actuation gear (1) is further provided on the transmission side of the control module (22), the sensor (25) preferably being communicatively connected directly to the control module (22).

9. The actuator unit (20) is accommodated by an actuator housing (26), and the pin gear (5) is accommodated by a transmission housing (16), 9. The actuation device (19) of claim 8, wherein the actuator housing (26) and the transmission housing (16) can be connected to each other at a parting plane (27), and the sensor (25) is housed in the transmission housing (16).

10. 10. An actuator unit (20) as described in claim 9, wherein the drive shaft (21) of the actuator unit (20) is rotatably and preferably axially mounted in the actuator housing (26) by only a single rolling bearing (13).

Images