Adapter shaft

Abstract

The invention relates to a gear motor comprising a shaft (43), an adapter shaft (1) and a toothed part (42), the adapter shaft (1) being hollow and having a clamping region (5) into which the shaft is inserted and a connecting region (6) into which the shaft is connected, the toothed part has a working toothing and a pin which axially adjoins the working toothing or is axially spaced apart from the working toothing, the pin having an outer toothing, in particular a hobbing toothing, the pin being connected in a form-fitting manner to the adapter shaft, the adapter shaft having a half-slot (8), the half-slot extending in the circumferential direction over a circumferential angle of 90 DEG to 270 DEG, the half-slot having an outer toothing, in particular a hobbing toothing, and the half-slot having an outer toothing, in particular a hobbing toothing, and the adapter shaft having an outer toothing, in particular a hobbing toothing. Wherein the half-slits are formed to pass through the adapter shaft in a radial direction.

Description

TECHNICAL FIELD

[0001] The invention relates to an adapter shaft. BACKGROUND

[0002] It is generally known that a reduction motor has a reduction gear driven by the motor.

[0003] As the closest prior art, from JP 2014-1835 A a shaft with a pinion is known.

[0004] From DE 10 2004 063 562 A1 a flexible coupling is known.

[0005] From DE 100 03 923 A1 a method for connecting a hub with a shaft is known.

[0006] From DE 101 55 581 A1 a radial clamping hub is known. SUMMARY

[0007] It is therefore an object of the invention to improve the connection of the motor of a reduction motor with the reduction gear of the reduction motor, wherein the reduction motor is to be designed compactly.

[0008] According to the invention, the object is achieved by an adapter shaft according to the features given in claim 1 and by a reduction motor according to the features given in claim 4.

[0009] In the adapter shaft, an important feature of the invention is that the adapter shaft is provided for a force-locked connection with the shaft,

[0010] wherein the adapter shaft is designed hollow,

[0011] wherein the adapter shaft has a clamping region and a connection region,

[0012] wherein the shaft is inserted into the clamping region, in particular through the clamping region, and is connected force-locked with the clamping region,

[0013] wherein the clamping region has an axial slit,

[0014] in particular wherein a normal to the slit plane of the axial slit is oriented in a tangential direction with reference to the rotational axis of the adapter shaft,

[0015] wherein the adapter shaft has a half-slit,

[0016] wherein a normal to the slit plane of the half-slit is oriented parallel to the axial direction, i.e. in particular parallel to the rotational axis of the adapter shaft,

[0017] wherein the first slitted end of the half-slit is curved in the circumferential direction, in particular is curved in such a way that the circumferential angular position of the first slitted end monotonously, in particular strictly monotonously, increases with increasing radial distance, in particular such that the circumferential angular range covered by the half-slit 8 with increasing radial distance is formed monotonously, in particular strictly monotonously,

[0018] In particular wherein the half-slit extends in the circumferential direction over a circumferential angle of 90° to 270°,

[0019] In particular wherein the half-slit is formed through the adapter shaft in the radial direction, in particular at the circumferential angular position covered by the half-slit in the circumferential direction,

[0020] In particular wherein the radial direction is based on the rotational axis of the shaft and the circumferential direction is likewise based on the rotational axis of the shaft.

[0021] Here the advantage is that the adapter shaft has a higher load capacity by virtue of the curved design of the first slitted end and can therefore transmit greater torques. It is important here that the first slitted end is spaced apart from the axial slit in the circumferential direction, whereas the second slitted end of the half-slit adjoins the axial slit or is at least less spaced apart from the axial slit than the first slitted end of the half-slit.

[0022] The clamping region thus transitions into the connection region or rather adjoins the connection region in the region of the adapter shaft adjacent and / or adjoining the first slitted end.

[0023] Preferably, the first slitted end is curved in an arc of a circle. Alternatively, however, in order to achieve a higher load capacity of the adapter shaft, the first slitted end is curved in an ellipse or in a tangent.

[0024] In an advantageous design, the other slitted end of the half-slit, in particular in the circumferential direction, is formed straight, in particular straight in the radial direction, in particular and / or has a unique circumferential angular position. The advantage here is that the load capacity is still kept relatively high and the straight slitted end can be produced very simply.

[0025] In an advantageous design, the half-slit is arranged axially between the clamping region and the connection region. The advantage here is that the elasticity of the clamping region is improved and the adapter shaft can nevertheless be designed in one piece.

[0026] In a reduction gear having the above-mentioned adapter shaft, an important feature of the invention is that the reduction gear comprises:

[0027] - a shaft, in particular a rotor shaft;

[0028] - an adapter shaft; and

[0029] - toothed parts, in particular sun gears,

[0030] Among them, the adapter shaft is designed to be hollow.

[0031] The adapter shaft has a clamping area and a connecting area.

[0032] In this case, the shaft is inserted into the clamping area, in particular passed through the clamping area, and is connected to the clamping area in a force-fitting manner.

[0033] The toothed component has a working toothing, in particular an involute toothing, and a pin / pivot axially adjacent to the working toothing or axially spaced apart from the working toothing, the pin having an external toothing, in particular a hobbed toothing.

[0034] The bolt is connected to the adapter shaft in a form-fitting manner, in particular by having an external toothing cut into the adapter shaft.

[0035] Wherein the adapter shaft has a half slit,

[0036] The half slit extends in the circumferential direction over a circumferential angle of 90° to 270°.

[0037] wherein the half slit is formed to penetrate the adapter shaft in the radial direction,

[0038] In particular, the radial direction is based on the rotational axis of the shaft, and the circumferential direction is likewise based on the rotational axis of the shaft.

[0039] The advantage here is that the half-slit separates the clamping area from the connection area, thus facilitating elastic deformation of the clamping area. Furthermore, the normal direction of the slit plane of the half-slit is oriented parallel to the axial direction. Thus, the shaft extends through the clamping area into the connection area. The adapter shaft can be centered relative to the shaft in the connection area, and a force-locking connection can be achieved in the clamping area to transmit the shaft torque to the adapter shaft, which then transfers this torque to the sun gear via the sun gear's pins.

[0040] The advantage of the present invention lies in the compact design, which is achieved by the fact that the friction-locking connection on the adapter shaft is formed in one piece. For this purpose, the clamping area of ​​the adapter shaft is formed in one piece with the connection area. Therefore, a separate clamping ring is not required.

[0041] Furthermore, the reduction gear motor can be designed compactly, since the sun wheel of the planetary gear mechanism is inserted directly into the adapter shaft, into which the rotor shaft of the motor also serves as a shaft is inserted. The rotational axes of the sun wheel and of the rotor shaft are thus oriented coaxially to one another. In particular, the shaft and the rotor shaft have only a negligible axial distance from one another, so that the reduction gear motor can be constructed compactly.

[0042] In an advantageous design, the adapter shaft has a stepped bore which has a first region before the step of the stepped bore in the axial direction and a second region after the step in the axial direction,

[0043] wherein the peg of the sun wheel is received in the second region,

[0044] In particular, the first region has a larger net inner diameter than the second region,

[0045] wherein the shaft projects into the first region. This has the advantage that the peg is spaced apart from the shaft in the axial direction.

[0046] In an advantageous design, the working toothing of the sun wheel is spaced apart in the axial direction from the region covered by the peg in the axial direction,

[0047] In particular, the working toothing meshes with a corresponding toothing of a planetary gear which is arranged in a rotatably supported manner in a planet carrier serving as an output shaft and meshes with a ring gear which is connected in a non-rotatable manner to a housing part of the reduction gear. This has the advantage that the sun wheel can be connected with its peg to the adapter shaft and transmit torque with its working toothing to the planetary gear.

[0048] In an advantageous design, an inner ring of a bearing is fitted on the adapter shaft, the outer ring of which is received in an adapter housing of the reduction gear motor,

[0049] In particular, the bearing is a rolling bearing. This has the advantage that the adapter shaft is supported in a rotatable manner by means of the bearing and thus supports the sun wheel by means of the adapter shaft, in addition to being supported by the shaft.

[0050] In an advantageous design, the region covered in the axial direction by the second region comprises the region covered in the axial direction by the peg or by the outer toothing thereof. This has the advantage that the peg is received in a form-locking manner in the adapter shaft. Preferably, the outer toothing of the peg is cut into the adapter shaft and thus connected very firmly. In addition, high torques can be transmitted.

[0051] In an advantageous design, the region covered by the bearing in the axial direction overlaps the region covered by the second region in the axial direction. The advantage here is that the peg is received in the second region and the bearing is also housed in the same axial region. Thus, greater forces can be introduced in the respective axial region of the adapter shaft, for which the adapter shaft also has an increased wall thickness here.

[0052] In an advantageous design, the region covered by the bearing in the axial direction comprises the axial position of the step of the stepped bore. The advantage here is that the bearing strengthens the adapter shaft in the respective axial region, although the step produces a notch stress concentration effect.

[0053] In an advantageous design, the radial wall thickness of the adapter shaft in the region covered by the second region in the axial direction is greater than the radial wall thickness of the adapter shaft in the region of the adapter shaft adjoining the second region. The advantage here is that forces can be introduced into the thickened section of the connection region, on the one hand by the sun gear and on the other hand by the bearing.

[0054] In an advantageous design, the radial wall thickness of the adapter shaft in the region covered by the second region in the axial direction is greater than the radial wall thickness in the remaining section of the connection region. The advantage here is that forces can be introduced into the thickened section of the connection region, on the one hand by the sun gear and on the other hand by the bearing.

[0055] In an advantageous design, the axial width of the half-slit is at most one fifth of the clear inner diameter of the first region and / or at most one fifth of the outer diameter of the shaft in the region covered by the clamping region in the axial direction. The advantage here is that the half-slit is narrow and the reduction gear can thus be designed compactly.

[0056] In an advantageous design, three axially oriented holes, in particular blind holes, are machined in the clamping region, in particular wherein the hole axis of each of the three holes is oriented parallel to the rotational axis of the shaft,

[0057] in particular wherein the three holes are each designed as blind holes which are opened from the axial end side of the clamping region and in particular all three holes are arranged at the same radial distance,

[0058] in particular wherein the distance, in particular the angular distance in the circumferential direction, of the hole centrally located in the circumferential direction of the three holes to the second hole of the three holes is less than the distance, in particular the angular distance in the circumferential direction, to the third hole of the three holes,

[0059] in particular wherein one of the three holes is used to balance the half-slit. The advantage here is that the balancing of the half-slit and the axial slit can be achieved in a simple manner.

[0060] In an advantageous design, the clamping region has an axial slit which runs through the clamping region in the axial direction and in the radial direction, through which the clamping screw passes. The advantage here is that the clamping region can be shrink-fitted onto the shaft for establishing a force-locking connection.

[0061] In an advantageous design, the screw head of the clamping screw bears against a step in the clamping region, which step in the clamping region is arranged on a first side of the axial slit,

[0062] wherein, on the other side of the axial slit, i.e. in particular the second side, the clamping region has a threaded region, through which the clamping screw passes and into which the clamping screw is screwed. The advantage here is that the functionality of the clamping ring is integrated into the adapter shaft.

[0063] In an advantageous design, a limiting element, in particular a pin, is fixed in the clamping region and protrudes from the clamping region,

[0064] wherein the limiting element limits the screw head in the direction of the helical axis and / or bears against a side of the screw head which faces away from the threaded region, in particular for opening the axial slit,

[0065] wherein the clamping screw has an annular groove, in particular on a side of the threaded region which faces away from the screw head of the clamping screw and / or in a region of the clamping screw which protrudes from the clamping region, in particular away from the axial slit, in which annular groove a form-locking, in particular a snap-in, ring is arranged, in particular for limiting the opening of the axial slit. The advantage here is that the axial slit can be opened and a limiting part for protecting the adapter shaft is provided.

[0066] In an advantageous design, the axial slit opens into a half-slit,

[0067] wherein a circumferential angular range covered by the axial slit in the circumferential direction is contained in a circumferential angular range covered by the half-slit in the circumferential direction,

[0068] in particular wherein the circumferential angular range covered by the axial slit in the circumferential direction is spaced apart on both sides in the circumferential direction from the respective end of the circumferential angular range covered by the half-slit in the circumferential direction,

[0069] in particular wherein the slit plane of the axial slit is oriented perpendicularly to the slit plane of the half-slit. The advantage here is that the clamping region of the adapter shaft is designed sufficiently elastically. Furthermore, a malfunction of the adapter shaft is prevented, since the axial slit does not open into the half-slit on the end of the half-slit, but is spaced apart in the circumferential direction and thus a reduced notch stress concentration effect can be achieved in the environment of the opening-in region.

[0070] In an advantageous design, the region covered by the shaft in the axial direction overlaps the region covered by the bearing in the axial direction,

[0071] In particular, the shaft is received in the first region, in particular in the region covered by the bearing in the axial direction, with a positive fit and / or without a gap. This has the advantage that the shaft supports the adapter shaft from the radially inner side and thus reinforces the bearing-receiving region of the adapter shaft, which also surrounds the peg of the sun wheel.

[0072] In an advantageous design, the peg is spaced apart from the first region in the axial direction. This has the advantage that the sun wheel does not protrude into the first region of the blind hole, in particular not into the further region of the blind hole, and thus leaves a sufficiently large space region for the shaft to protrude as close as possible to the bearing in the axial direction and thus to stabilize and reinforce the adapter shaft from the inside.

[0073] Further advantages are given in the dependent claims. The application is not restricted to the combination of features of the claims. Further reasonable combination possibilities of the claim and / or individual claim features and / or specification features and / or drawing features can be derived by the person skilled in the art, in particular from the objects presented and / or by comparison with the prior art. BRIEF DESCRIPTION OF DRAWINGS

[0074] The application will now be explained in detail on the basis of the schematic drawings:

[0075] A perspective view of an adapter shaft 1 of a reduction gear according to the application is shown in Figure 1

[0076] A sectional view of the adapter shaft 1 is shown in Figure 2 A side view of the adapter shaft 1 is shown in

[0077] Figure 3 A sectional view of the planetary gear mechanism is shown in

[0078] A top view of the sectional planetary gear mechanism is shown in Figure 4 A sectional view of the planetary gear mechanism is shown in

[0079] Figure 5 A top view of the sectional planetary gear mechanism is shown in

[0080] Another perspective view of the adapter shaft 1 is shown in Figure 6

[0081] A sectional view of the adapter shaft 1 is shown in Figure 7 DETAILED DESCRIPTION ​​​​​

[0082] As shown in the drawing, the adapter shaft 1 has a clamping region 5 which is separated from the connection region 6 by means of a half-slit 8, i.e. a radially oriented half-through slit. The normal to the slit plane of the half-slit 8 is oriented parallel to the axial direction, i.e. in particular parallel to the rotational axis of the adapter shaft 1.

[0083] The adapter shaft 1 is formed integrally, in particular in one piece, together with its annular clamping region 5 and its sleeve-shaped connection region 6.

[0084] The shaft, in particular the rotor shaft of an electric motor of a reduction motor, can be pushed into the clamping region 5 and can be connected force-lockingly by means of manipulation of the clamping screw 2.

[0085] A pin section, in particular with a gear hobbing toothing, of a sun wheel of a planetary gear of a reduction motor can be inserted into the connection region 6 and can thus be form-lockingly connected. In this way, the adapter shaft 1 can serve as a shaft coupling between the input rotor shaft and the sun wheel 42.

[0086] The clamping region has an axial slit which runs through the clamping region 5 in the axial direction and in the radial direction, through which the clamping screw 2 passes.

[0087] The screw head of the clamping screw 2 rests against a step which is arranged in the clamping region 5 on a first side of the axial slit.

[0088] On the other side of the axial slit, the clamping region has a threaded region, through which the clamping screw 2 passes and into which the clamping screw 2 is screwed.

[0089] In the region of the clamping screw 2 which protrudes from the threaded region, a stop ring 4 is arranged which snaps into an annular groove of the clamping screw 2 and thus serves as an opening limitation.

[0090] A pin 3 which is inserted into a bore of the clamping region serves as a limitation for the screw head of the clamping screw 2, the bore axis of the bore being oriented perpendicularly to the helical axis of the clamping screw 2. Thus, when the clamping screw 2 is unscrewed from the threaded region, the screw head is blocked from moving out by the pin 3 and thus the axial slit is expanded until the stop ring 4 rests against the clamping region and prevents further opening. Damage to the clamping region is thereby avoided.

[0091] The screw head of the clamping screw 2 preferably has an inner hexagon, so that the clamping screw 2 can be manipulated in a simple manner by means of an external hexagonal tool.

[0092] Furthermore, three axial bores 20 are machined in the clamping region, which are provided for balancing the adapter shaft 1.

[0093] The three bores 20 are each designed as blind bores which are opened from the axial end sides of the clamping region and preferably all three bores are arranged at the same radial distance.

[0094] The distance, in particular the circumferential angle distance, of the circumferentially central one of the three bores 20 to the second one of the three bores 20 is smaller than to the third one of the three bores 20.

[0095] By selecting the number of three bores 20, one of the three bores can be provided for a radially oriented half-through half-slit.

[0096] Here, the axial direction is always parallel to the rotational axis of the shaft and / or of the sun wheel 42. The radial direction, the respective radial distance and the circumferential direction are likewise each based on the rotational axis of the shaft and / or of the sun wheel 42.

[0097] The helical axis of the clamping screw 2 is oriented perpendicularly to the rotational axis of the shaft and / or of the sun wheel 42. Furthermore, the bore axis of the bore of the receiving pin 3 is also oriented perpendicularly to the rotational axis of the shaft and / or of the sun wheel 42.

[0098] As shown in Figure 4 and Figure 5 , the reduction gear of the reduction motor has a housing part 44 which is connected with the adapter housing 40 to which a bearing flange of the motor of the reduction motor can be coupled, wherein the bearing flange is connected with a stator housing of the motor.

[0099] In the bearing flange there is received a bearing of a rotor shaft of the motor, wherein the rotor shaft can be pushed into the hollow region of the clamping region and can be connected force-lockingly by means of the manipulation of the clamping screw 2.

[0100] For this purpose, the adapter shaft 1 is designed hollow and has an axially through-going blind bore. In order to receive the rotor shaft, the blind bore has a first axial region which is arranged axially before a step of the blind bore. The clear diameter of the first axial region of the blind bore is greater than the clear diameter of a second region which is arranged axially after the step of the blind bore.

[0101] The sun wheel 42 is inserted with its peg with the outer toothing into the second region of the adapter shaft, wherein the outer toothing of the peg is cut into the material of the adapter shaft, in particular in the second region.

[0102] The bearing 41 is pushed onto the adapter shaft 1 which is received in the adapter housing 40. In particular, the bearing 41 abuts against the step on the outer surface of the adapter shaft 1.

[0103] The region which is covered by the bearing 41 in the axial direction comprises the region which is covered by the second region in the axial direction and / or the region which is covered by the peg of the sun wheel 42 in the axial direction.

[0104] The area covered by the bearing 41 in the axial direction overlaps the area covered by the first region in the axial direction.

[0105] The area covered by the first region in the axial direction comprises the area covered by the clamping region 5 in the axial direction and overlaps the area covered by the connecting region 6 in the axial direction.

[0106] The rotor shaft extends into the first region in the axial direction to such a depth that the area covered by the rotor shaft in the axial direction comprises the axial area covering the half-slit and the area covered by the clamping region 5 in the axial direction.

[0107] The working toothing of the sun gear 42, which is axially spaced apart from the peg region, meshes with the toothing of the planet gears, which also meshes with the inner toothing of the ring gear, which is connected to the housing part 44 in a rotationally fixed manner. The planet gears are rotatably supported on a planet carrier, which itself is rotatably supported relative to the housing part 22 and serves as the output shaft 43 of the planetary gear transmission of the reduction motor.

[0108] The bore 20 is spaced apart from the second region in the axial direction. Correspondingly, the clamping region 5 is also spaced apart from the second region in the axial direction.

[0109] It is important in the present application that the step of the stepped bore is arranged in the area covered by the bearing in the axial direction. In this way, the wall thickness in the area covered by the first region in the axial direction can be greater than in the remaining connecting region 6. Thus, the sun gear 42 and the bearing can be received in a very stable region of the adapter shaft 1. Thus, the region in which the bearing and the sun gear 42 are received is designed to be very robust, while the transition to the clamping region is designed to be more flexible, in particular due to the half-slit.

[0110] The half-slit extends 180° in the circumferential direction and completely through the hollow adapter shaft 1 in the radial direction. Preferably, the axial width of the half-slit differs from the slit width of the axial slit by at most 50%.

[0111] As shown in Figure 6 The bevel 60 arranged diametrically opposite the axial slit of the clamping region 5 narrows the clamping region 5 and thus increases its flexibility. In particular, the bevel 60 penetrates the edge of the clamping region 5 and is mounted in the circumferential direction between two of the bores 20 in the bore 20. Advantageously, the bevel 60 can contribute to balancing the adapter shaft 1 depending on the dimension, i.e. the groove depth, in particular since the bevel is not designed to be axially through-going.

[0112] As shown in Figure 7As is shown in the middle, the half-slit 8 has a first slit end 71 which is designed curved on its first end in the circumferential direction and a second slit end 70 which is formed straight, i.e. in particular not curved, on its other end.

[0113] The second slit end 70 is thus designed purely radially. The second slit end 70 thus has a constant circumferential angular position which is always the same as the radial distance increases.

[0114] The first slit end 71, by contrast, has a circumferential angle which monotonically, in particular strictly monotonically, increases as the radial distance increases. The circumferential angular range covered by the half-slit 8 as the radial distance increases is thus monotonically, in particular strictly monotonically, increasing. In this way, the adapter shaft has a higher load capacity, in particular can thus transmit greater forces.

[0115] Since the adapter shaft 1 is designed hollow, the half-slit 8 is limited by a front slit end in the circumferential direction and a rear slit end (70, 71) arranged on the other end of the half-slit 8.

[0116] The curved course of the first slit end 71 is preferably formed circular-arc-shaped. However, a tangential or elliptical course can also be implemented instead, since such a course enables a higher load capacity compared to a circular-arc-shaped course.

[0117] The normal to the slit plane of the axial slit 7 is oriented parallel to the tangential direction and / or perpendicular to the normal to the slit plane of the half-slit 8.

[0118] However, it is important that the oblique groove 60 is not formed axially through, but rather the region covered by the oblique groove 60 in the axial direction is shorter than the region covered by the clamping region 5 in the axial direction, which region includes the region covered by the oblique groove 60 in the axial direction.

[0119] In a further embodiment according to the application, the step of the stepped bore is arranged axially centrally in the region covered by the bearing 41 in the axial direction. An improved stability is thus achieved.

[0120] List of reference signs:

[0121] 1 adapter shaft

[0122] 2 clamping screw

[0123] 3 pin

[0124] 4 stop ring

[0125] 5 clamping region

[0126] 6 connection region

[0127] 7 axial slit

[0128] 8 half slit

[0129] 20 hole

[0130] 40 adapter housing

[0131] 41 bearing

[0132] 42 sun gear

[0133] 43 output shaft, planet carrier

[0134] 44 housing part

[0135] 60 bevel

[0136] 70 second slit end

[0137] 71 first slit end

Claims

1. An adapter shaft for non-positive connection to a shaft, The adapter shaft is designed to be hollow. The adapter shaft has a clamping area and a connection area, The shaft is inserted into the clamping area, in particular passed through the clamping area, and connected thereto in a force-fitting manner. The clamping area has an axial slit, In particular, the normal to the slit plane of the axial slit is oriented tangentially with respect to the axis of rotation of the adapter shaft. It is characterized by: The adapter shaft has a half slit, The normal to the slit plane of the half slit is oriented parallel to the axial direction, ie in particular parallel to the axis of rotation of the adapter shaft, The first slit end portion of the half slit in the circumferential direction is formed in a curved manner, in particular, in such a manner that the circumferential angular position of the first slit end portion increases monotonically, in particular, strictly monotonically, as the radial distance gradually increases. In particular, the circumferential angular range covered by the half slit 8 increases monotonically, in particular, strictly monotonically, as the radial distance gradually increases. In particular, the half slits extend in the circumferential direction over a circumferential angle of 90° to 270°, In particular, the half slits are formed to penetrate the adapter shaft in the radial direction, in particular at the circumferential angular positions covered by the half slits in the circumferential direction, In particular, the radial direction is referenced to the axis of rotation of the shaft, and the circumferential direction is likewise referenced to the axis of rotation of the shaft.

2. The adapter shaft according to claim 1, It is characterized by: The other slit end of the half slit, in particular in the circumferential direction, is formed straight, in particular in the radial direction, and in particular and / or has a single circumferential angular position.

3. An adapter shaft according to any one of the preceding claims, It is characterized by: The half slits are arranged axially between the clamping area and the connecting area.

4. A geared motor having an adapter shaft according to any one of the preceding claims, It is characterized by: The reduction motor includes: - shafts, in particular rotor shafts; - adapter shaft; and - toothed parts, in particular sun gears, The toothed component has a working toothing, in particular an involute toothing, and a bolt portion axially adjacent to the working toothing or axially spaced apart from the working toothing, the bolt portion having an external toothing, in particular a hobbed toothing. The bolt is connected to the adapter shaft in a form-fitting manner, in particular by having an external toothing cut into the adapter shaft.

5. The geared motor according to any one of the preceding claims, It is characterized by: The adapter shaft has a stepped bore having a first region in the axial direction before the step of the stepped bore and a second region in the axial direction after the step, The pin of the sun gear is received in the second region. In particular, the clear inner diameter of the first region is greater than the clear inner diameter of the second region, The shaft projects into the first region.

6. A geared motor according to any one of the preceding claims, It is characterized by: The working teeth of the sun gear are spaced apart in the axial direction from the area covered by the pin portion in the axial direction. In particular, the working toothing meshes with corresponding toothing of planetary gears which are rotatably mounted in a planetary carrier serving as an output shaft and mesh with a ring gear which is rotationally fixedly connected to a housing part of the reduction gear.

7. A geared motor according to any one of the preceding claims, It is characterized by: The inner ring of the bearing is mounted on the adapter shaft, and the outer ring of the bearing is received in the adapter housing of the reduction motor. In particular, the bearing is a rolling bearing.

8. A geared motor according to any one of the preceding claims, It is characterized by: The region covered by the second region in the axial direction includes a region covered by the bolt portion or the external toothing of the bolt portion in the axial direction.

9. A geared motor according to any one of the preceding claims, It is characterized by: The area covered by the bearing in the axial direction overlaps with the area covered by the second area in the axial direction, and / or, The area covered by the bearing in the axial direction includes the axial position of the step portion of the stepped hole.

10. The geared motor according to any one of the preceding claims, It is characterized by: the radial wall thickness of the adapter shaft in a region covered by the second region in the axial direction is greater than the radial wall thickness of the adapter shaft in a region of the adapter shaft adjacent to the second region, and / or, The radial wall thickness of the adapter shaft in the region covered by the second region in the axial direction is greater than the radial wall thickness in the remaining section of the connection region, and / or, The axial width of the half slit is at most one fifth of the clear inner diameter of the first region and / or at most one fifth of the outer diameter of the shaft in the region covered by the clamping region in the axial direction.

11. A geared motor according to any one of the preceding claims, It is characterized by: Three axially oriented holes, in particular blind holes, are machined in the clamping region, in particular the hole axis of each of these three holes being oriented parallel to the axis of rotation of the shaft, In particular, the three holes are each designed as a blind hole starting from the axial end side of the clamping region, and in particular all three holes are arranged at the same radial distance. In particular, the distance, in particular the angular distance, of the central hole of the three holes to the second hole of the three holes is smaller than the distance, in particular the angular distance, to the third hole of the three holes. In particular, one of the three holes is used to balance the half-slit.

12. A geared motor according to any one of the preceding claims, It is characterized by: The clamping region has an axial slit that passes through the clamping region in the axial direction and in the radial direction, through which the clamping screw passes. and / or, The screw head of the clamping screw bears against a step in the clamping region, said step in the clamping region being arranged on a first side of the axial slot, On the other side of the axial slot, ie in particular the second side, the clamping region has a threaded region through which the clamping screw passes and into which it is screwed.

13. A geared motor according to any one of the preceding claims, It is characterized by: The limiting element, in particular the pin, is fixed in the clamping region and projects beyond the clamping region, The limiting element limits the screw head in the direction of the screw axis and / or the limiting element bears against the side of the screw head facing away from the threaded area, in particular for opening the axial slit. The clamping screw has an annular groove, in particular on a side of the threaded region facing away from the screw head of the clamping screw and / or in an area of ​​the clamping screw protruding from the clamping region, in particular facing away from the axial slit, in which a retaining ring is arranged in a form-fitting manner, in particular is engaged, in particular for limiting the opening of the axial slit.

14. A geared motor according to any one of the preceding claims, It is characterized by: The axial slit leads into the half slit, The circumferential angle range covered by the axial slit in the circumferential direction is included in the circumferential angle range covered by the half slit in the circumferential direction, In particular, the circumferential angular range covered by the axial slit in the circumferential direction is spaced apart on both sides in the circumferential direction from the respective ends of the circumferential angular range covered by the half slit in the circumferential direction, In particular, the slit plane of the axial slit is oriented perpendicularly to the slit plane of the half slit, and / or, In the clamping region, an oblique groove is arranged, in particular radially opposite the axial slot, ie in particular spaced 180° apart from the axial slot in the circumferential direction. In particular, the area covered by the oblique groove in the axial direction is included in the area covered by the clamping area in the axial direction.

15. A geared motor according to any one of the preceding claims, It is characterized by: The area covered by the shaft in the axial direction overlaps with the area covered by the bearing in the axial direction, In particular, the shaft is received in a first region with a precise fit and / or without play, in particular in a region covered by the bearing in the axial direction, and / or, The bolt portion is spaced apart from the first region in the axial direction.

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