Adapter shaft

Abstract

The invention relates to a gear motor, comprising a shaft (43), an adapter shaft (1), and a toothing part (42), wherein the adapter shaft (1) is hollow; the adapter shaft has a clamping region (5) and a connection region (6); the shaft is inserted in the clamping region; the toothing part has a running toothing and a pin axially adjacent to the running toothing or axially spaced from the running toothing, said pin having an external toothing, in particular a knurl toothing; the pin is connected to the adapter shaft in a form-fitting manner; the adapter shaft has a half-slot (8); the half-slot extends in the circumferential direction over a circumferential angle which equals between 90° and 270°; and the half-slot is formed in an uninterrupted manner through the adapter shaft in the radial direction.

Description

[0001] adapter shaft

[0002] Description:

[0003] The invention relates to an adapter shaft.

[0004] It is generally known that a geared motor has a gearbox driven by an electric motor.

[0005] From JP 2014- 1 835 A, the closest state of the art is a shaft with pinion.

[0006] A flexible shaft coupling is known from DE 102004 063 562 A1.

[0007] From DE 100 03 923 A1 a method for connecting a hub to a shaft is known.

[0008] A radial clamping hub is known from DE 101 55 581 A1.

[0009] The invention is therefore based on the object of developing a connection of the electric motor of the geared motor to the gearbox of the geared motor, wherein the geared motor should be designed to be compact.

[0010] According to the invention, the object is achieved with the adapter shaft according to the features specified in claim 1 and with the geared motor according to the features specified in claim 4.

[0011] Important features of the invention in the adapter shaft are that the adapter shaft is provided for a force-locking connection with a shaft, wherein the adapter shaft is hollow, wherein the adapter shaft has a clamping area and a connecting area,

[0012] ISI \ EIDOPAT 06.03.2024 wherein the shaft is inserted into the clamping area, in particular protrudes through the clamping area, and is non-positively connected to the clamping area, wherein the clamping area has an axial slot, in particular wherein the normal of the slot plane of the axial slot is aligned in a tangential direction with respect to the axis of rotation of the adapter shaft, wherein the adapter shaft has a half-slot, wherein the normal of the slot plane of the half-slot is aligned parallel to the axial direction, in particular thus aligned parallel to the axis of rotation of the adapter shaft, wherein the first slot end of the half-slot in the circumferential direction is curved, in particular such that with increasing radial distance the circumferential angular position of the first slot end increases monotonically, in particular strictly monotonically, in particular so that the circumferential angular range covered by the half-slot 8 with increasing radial distance monotonically,in particular, is formed in a strictly monotonous, increasing manner, in particular wherein the half-slot extends in the circumferential direction over a circumferential angle whose amount is between 90° and 270°, in particular wherein the half-slot is formed continuously through the adapter shaft in the radial direction, in particular at the circumferential angular positions covered by the half-slot in the circumferential direction, in particular wherein the radial direction is related to the axis of rotation of the shaft and the circumferential direction is also related to the axis of rotation of the shaft.

[0013] The advantage here is that the adapter shaft has a higher load capacity due to the curved design of the first slot end and is thus able to transmit higher torques. It is important that the first slot end is spaced circumferentially from the axial slot, whereas the second slot end of the half-slot is adjacent to the axial slot or at least closer to the axial slot than the first slot end of the half-slot. The clamping area thus merges into the connecting area in the area of ​​the adapter shaft adjacent to and / or adjacent to the first slot end, or borders the connecting area.

[0014] Preferably, the first slot end is curved in a circular arc. Alternatively, to achieve an even higher load capacity of the adapter shaft, the first slot end is curved in an elliptical shape or in a tangential shape.

[0015] In an advantageous embodiment, the other slot end of the half-slot, particularly in the circumferential direction, is designed to be straight, particularly in the radial direction, and / or has a single circumferential angular position. This has the advantage that the load-bearing capacity remains high and the production of the straight slot end is very simple.

[0016] In an advantageous embodiment, the half-slot is arranged axially between the clamping area and the connecting area. This improves the elasticity of the clamping area while still allowing the adapter shaft to be constructed as a single piece.

[0017] Important features of the geared motor with the above-mentioned adapter shaft are that the geared motor has the shaft, in particular the rotor shaft, the adapter shaft and a toothed part, in particular the sun gear, wherein the adapter shaft is hollow, wherein the adapter shaft has a clamping area and a connecting area, wherein the shaft is inserted into the clamping area, in particular protrudes through the clamping area, and is non-positively connected to the clamping area, wherein the toothed part has a running toothing, in particular an involute toothing, and a pin axially adjacent to the running toothing or axially spaced from the running toothing, which pin has an external toothing, in particular

[0018] Knurled toothing, wherein the pin is positively connected to the adapter shaft, in particular in that the external toothing is cut into the adapter shaft, wherein the adapter shaft has a half-slot, wherein the half-slot extends in the circumferential direction over a circumferential angle whose amount is between 90° and 270°, wherein the half-slot is formed continuously through the adapter shaft in the radial direction, in particular wherein the radial direction is related to the axis of rotation of the shaft and the circumferential direction is likewise related to the axis of rotation of the shaft.

[0019] The advantage here is that the half-slot separates the clamping area from the connection area, thus facilitating elastic deformation of the clamping area. Furthermore, the normal direction of the slot plane of the half-slot is aligned parallel to the axial direction. This allows the shaft to protrude through the clamping area into the connection area. The connection area allows the adapter shaft to be centered relative to the shaft, and the clamping area creates a force-locking connection for transmitting the shaft torque to the adapter shaft, which then transmits this torque to the sun gear via the pin of the sun gear.

[0020] The advantage of the invention is a compact design, as the frictional connection to the adapter shaft is formed as a single piece. This is because the clamping area of ​​the adapter shaft is formed as one piece with the connection area. Therefore, no separate clamping ring is necessary.

[0021] In addition, the geared motor can be designed compactly because the sun gear of the planetary gear is inserted directly into the adapter shaft, into which the rotor shaft of the electric motor is also inserted as a shaft. The axes of rotation of the sun gear and the rotor shaft are thus aligned coaxially with one another. In particular, the shaft and the rotor shaft are only slightly axially spaced from one another, so that the geared motor can be constructed compactly. In an advantageous embodiment, the adapter shaft has a stepped bore which has a first region in the axial direction in front of the step of the stepped bore and a second region in the axial direction behind the step, wherein the pin of the sun gear is received in the second region, in particular wherein the clear inner diameter of the first region is larger than the clear inner diameter of the second region, wherein the shaft projects into the first region.The advantage here is that the pin is axially spaced from the shaft.

[0022] In an advantageous embodiment, the running gear of the sun gear is axially spaced from the area covered by the journal in the axial direction, in particular, the running gear meshes with the respective gearing of planetary gears, which are rotatably mounted in a planetary carrier acting as the output shaft and mesh with a ring gear that is non-rotatably connected to the housing part of the transmission. It is advantageous that the sun gear can be connected to the adapter shaft with its journal, and its running gear transmits the torque to the planetary gears.

[0023] In an advantageous embodiment, the inner ring of a bearing is mounted on the adapter shaft, the outer ring of which is accommodated in an adapter housing of the geared motor, in particular, the bearing being a rolling bearing. Advantageously, the adapter shaft is rotatably mounted by the bearing, and thus the sun gear is mounted via the adapter shaft, which is also supported by the shaft.

[0024] In an advantageous embodiment, the area covered in the axial direction by the journal or its external toothing is encompassed by the area covered in the axial direction by the second area. Advantageously, the journal is positively received in the adapter shaft. Preferably, the external toothing of the journal is cut into the adapter shaft, thus providing a very rigid connection. Furthermore, a high torque can be transmitted.

[0025] In an advantageous embodiment, the area covered by the bearing in the axial direction overlaps with the area covered by the second area in the axial direction. This is advantageous because the journal is accommodated in the second area, and the bearing is also mounted in the same axial area. Thus, high forces can be introduced into this corresponding axial area of ​​the adapter shaft, for which purpose the adapter shaft also has an increased wall thickness.

[0026] In an advantageous embodiment, the axial position of the step of the stepped bore is encompassed by the area covered by the bearing in the axial direction. This is advantageous in that, while the step creates a notch effect, the bearing reinforces the adapter shaft in the corresponding axial area.

[0027] In an advantageous embodiment, the radial wall thickness of the adapter shaft in the area covered by the second area in the axial direction is greater than the radial wall thickness of the adapter shaft in the area adjacent to the second area. This advantageously allows forces to be introduced into the thickened section of the connecting area from both the sun gear and the bearing.

[0028] In an advantageous embodiment, the radial wall thickness of the adapter shaft in the area covered by the second area in the axial direction is greater than the radial wall thickness in the remaining section of the connecting area. This advantageously allows forces to be introduced into the thickened section of the connecting area from both the sun gear and the bearing.

[0029] In an advantageous embodiment, the axial width of the half-slot is at least five times smaller than the clear inner diameter of the first region and / or the outer diameter of the shaft in the area covered by the clamping region in the axial direction. This is advantageous because the half-slot is narrow, allowing the geared motor to be designed compactly.

[0030] In an advantageous embodiment, three axially directed bores, in particular blind holes, are introduced into the clamping area, in particular wherein the bore axis of each of the three bores is aligned parallel to the axis of rotation of the shaft, in particular wherein the three bores are each designed as blind holes introduced from the axial end face of the clamping area and in particular all three are arranged at the same radial distance, in particular wherein the middle one of the three bores in the circumferential direction has a smaller distance, in particular circumferential angular distance, from a second of the three bores than from the third of the three bores, in particular wherein one of the three bores functions as a balance for the half-slot. The advantage here is that balancing of the half-slot and the axial slot is made possible in a simple manner.

[0031] In an advantageous embodiment, the clamping area has an axial slot extending through the clamping area in both the axial and radial directions, through which a clamping screw protrudes. Advantageously, the clamping area can be shrink-fitted onto the shaft to create a force-locking connection.

[0032] In an advantageous embodiment, the screw head of the clamping screw rests against a step of the clamping area, which is arranged in the clamping area on the first side of the axial slot, wherein on the other side, in particular the second side, of the axial slot, the clamping area has a threaded area through which the clamping screw protrudes and into which the clamping screw is screwed. It is advantageous that the function of a clamping ring is integrated into the adapter shaft.

[0033] In an advantageous embodiment, a limiting element, in particular a bolt, is fastened in the clamping area and protrudes from the clamping area, wherein the limiting element limits the screw head in the screw axis direction and / or the limiting element bears against the side of the screw head facing away from the threaded area, in particular for spreading the axial slot, wherein the clamping screw, in particular on the side of the threaded area facing away from the screw head of the clamping screw and / or in the area of ​​the clamping screw protruding from the clamping area, in particular facing away from the axial slot, has an annular groove in which a retaining ring is arranged in a form-fitting manner, in particular snapped in, in particular for limiting the spreading of the axial slot. The advantage here is that spreading of the axial slot is possible and a spreading limit is provided to protect the adapter shaft.

[0034] In an advantageous embodiment, the axial slot opens into the half-slot, wherein the circumferential angular range covered by the axial slot in the circumferential direction is contained in the circumferential angular range covered by the half-slot in the circumferential direction, in particular wherein the circumferential angular range covered by the axial slot in the circumferential direction is spaced apart on both sides in the circumferential direction from the ends of the circumferential angular range covered by the half-slot in the circumferential direction, in particular wherein the slot plane of the axial slot is aligned perpendicular to the slot plane of the half-slot. An advantage here is that the clamping area of ​​the adapter shaft is designed to be sufficiently elastic. Furthermore, failure of the adapter shaft is prevented because the axial slot opens into the half-slot not at the end of the half-slot, but at a distance in the circumferential direction, thus achieving a reduced notch effect in the vicinity of the opening area.

[0035] In an advantageous embodiment, 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 accommodated in the first area, particularly in the area covered by the bearing in the axial direction, with a precise fit and / or without play. Advantageously, the shaft supports the adapter shaft from the radial inside and thus stiffens the bearing support area of ​​the adapter shaft, which also surrounds the pin of the sun gear.

[0036] In an advantageous embodiment, the pin is axially spaced from the first region. This is advantageous in that the sun gear does not protrude into the first region of the blind hole, in particular the further region of the blind hole, and thus leaves the shaft sufficient space to protrude as close as possible to the bearing in the axial direction and thereby stabilize and stiffen the adapter shaft from the inside. Further advantages arise from the subclaims. The invention is not limited to the combination of features of the claims. Those skilled in the art will recognize further useful combinations of claims and / or individual claim features and / or features of the description and / or the figures, in particular from the problem and / or the problem arising from a comparison with the prior art.

[0037] The invention will now be explained in more detail using schematic illustrations:

[0038] Figure 1 shows an adapter shaft 1 of a gear motor according to the invention in an oblique view.

[0039] Figure 2 shows a cross section of the adapter shaft 1.

[0040] Figure 3 shows a side view of the adapter shaft 1.

[0041] Figure 4 shows a section of the planetary gear.

[0042] Figure 5 shows a top view of the cutaway planetary gear.

[0043] Figure 6 shows a further oblique view of the adapter shaft 1, so that an oblique groove 60 introduced into the clamping area 5 is visible.

[0044] Figure 7 shows a cross section through the adapter shaft 1, wherein the cutting plane of the cross section bisects a half slot 8 of the adapter shaft 1.

[0045] As shown in the figures, the adapter shaft 1 has a clamping area 5, which is separated from a connecting area 6 by the half-slot 8, i.e., a radially directed, semi-continuous slot. The normal of the slot plane of the half-slot 8 is aligned parallel to the axial direction, in particular, parallel to the rotational axis of the adapter shaft 1.

[0046] The adapter shaft 1, together with its annular clamping area 5 and its bush-shaped connecting area 6, is formed in one piece, in particular in one part.

[0047] A shaft, in particular the rotor shaft of an electric motor of the gear motor, can be inserted into the clamping area 5 and connected in a force-locking manner by actuating a clamping screw 2.

[0048] The pin section of a sun gear of a planetary gear of the geared motor, which is in particular provided with a knurled toothing, can be inserted into the connecting area 6 and thus connected in a form-fitting manner. In this way, the adapter shaft 1 can be used as a coupling between the input rotor shaft and the sun gear 42.

[0049] The clamping area has an axial slot extending in the axial direction and in the radial direction through the clamping area 5, through which the clamping screw 2 projects.

[0050] The screw head of the clamping screw 2 rests on a step which is arranged in the clamping area 5 on the first side of the axial slot.

[0051] On the other side of the axial slot, the clamping area has a threaded area through which the clamping screw 2 protrudes and into which the clamping screw 2 is screwed.

[0052] In the area of ​​the clamping screw 2 protruding from the threaded area, a retaining ring 4 is arranged, which is snapped into an annular groove of the clamping screw 2 and thus acts as an expansion limiter.

[0053] A bolt 3, which is inserted into a hole in the clamping area, whose hole axis is aligned perpendicular to the screw axis of the clamping screw 2, serves as a limiter for the screw head of the clamping screw 2. Thus, when the clamping screw 2 is unscrewed from the threaded area, the screw head is prevented from moving out of the bolt 3, thus widening the axial slot until the retaining ring 4 rests against the clamping area and prevents further expansion. This prevents damage to the clamping area.

[0054] The screw head of the clamping screw 2 preferably has a hexagon socket, so that the clamping screw 2 can be easily operated with an external hexagon tool.

[0055] In addition, three axially directed bores 20 are provided in the clamping area, which are intended for balancing the adapter shaft 1. The three bores 20 are each designed as blind holes introduced from the axial end face of the clamping area and are preferably arranged at the same radial distance.

[0056] The middle of the three bores 20 in the circumferential direction has a smaller distance, in particular circumferential angular distance, from a second of the three bores 20 than from the third of the three bores 20.

[0057] By selecting the number of three holes 20, one of the three holes can be provided for balancing the radially directed semi-through half-slot.

[0058] The axial direction is always parallel to the axis of rotation of the shaft and / or the sun gear 42. The radial direction, the respective radial distance and the circumferential direction are also each related to the axis of rotation of the shaft and / or the sun gear 42.

[0059] The screw axis of the clamping screw 2 is aligned perpendicular to the rotational axis of the shaft and / or the sun gear 42. Furthermore, the bore axis of the bore receiving the bolt 3 is also aligned perpendicular to the rotational axis of the shaft and / or the sun gear 42.

[0060] As shown in Figures 4 and 5, the gear of the geared motor has a housing part 44 which is connected to an adapter housing 40, to which a bearing flange of the electric motor of the geared motor can be connected, wherein the bearing flange is connected to a stator housing of the electric motor.

[0061] A bearing of the rotor shaft of the electric motor is accommodated in the bearing flange, whereby the rotor shaft can be inserted into the hollow area of ​​the clamping area and can be connected in a force-locking manner by actuating the clamping screw 2.

[0062] For this purpose, the adapter shaft 1 is hollow and has an axially continuous blind bore. To accommodate the rotor shaft, the blind bore has a first axial region arranged axially in front of a step of the blind bore. The inside diameter of the first axial region of the blind bore is larger than the inside diameter of the second region arranged axially behind the step of the blind bore. The sun gear 42 is inserted with its externally toothed pin into the second region of the adapter shaft, with the external toothing of the pin being cut into the material of the adapter shaft, particularly in the second region.

[0063] A bearing 41 is pushed onto the adapter shaft 1 and is accommodated in the adapter housing 40. In particular, the bearing 41 is positioned against a step on the outer surface of the adapter shaft 1.

[0064] The area covered by the bearing 41 in the axial direction comprises the area covered by the second area in the axial direction and / or the area covered by the journal of the sun gear 42 in the axial direction.

[0065] The area covered by bearing 41 in the axial direction overlaps with the area covered by the first area in the axial direction.

[0066] The area covered by the first area in the axial direction comprises the area covered by the clamping area 5 in the axial direction and overlaps with the area covered by the connecting area 6 in the axial direction.

[0067] The rotor shaft projects in the axial direction into the first region to such a depth that the region covered by the rotor shaft in the axial direction comprises the axial region covered by the half-slot and the region covered by the clamping region 5 in the axial direction.

[0068] The running gear teeth of sun gear 42, axially spaced from the journal area, mesh with the gear teeth of planetary gears, which also mesh with the internal gear teeth of a ring gear that is rotationally fixedly connected to the housing part 44. The planetary gears are rotatably mounted on a planet carrier, which itself is rotatably mounted relative to the housing part 22 and functions as the output shaft 43 of the planetary gear of the geared motor.

[0069] In the axial direction, the bores 20 are spaced from the second region. Accordingly, the clamping region 5 is also spaced from the second region in the axial direction. It is important in the invention that the step of the stepped bore is arranged in the region covered by the bearing in the axial direction. In this way, a greater wall thickness can be achieved in the region covered by the first region in the axial direction than in the remaining connecting region 6. The sun gear 42 and the bearing can thus be accommodated in a very rigid region of the adapter shaft 1. This region of the bearing receptacle and the receptacle of the sun gear 42 is thus designed to be very rigid, whereas the transition to the clamping region is designed to be more elastic, particularly due to the half-slot.

[0070] The half-slot extends 180° in the circumferential direction and passes completely through the hollow adapter shaft 1 in the radial direction. Preferably, the axial width of the half-slot differs from the slot width of the axial slot by a maximum of 50%.

[0071] As shown in Figure 6, the oblique groove 60, arranged diametrically to the axial slot of the clamping area 5, narrows the clamping area 5 and thus increases its elasticity. In particular, the oblique groove 60 intersects an edge of the clamping area 5 and is arranged circumferentially between two of the bores 20. Depending on its dimensions, i.e., groove depth, the oblique groove 60 can advantageously contribute to the balancing of the adapter shaft 1, particularly since it is not axially continuous.

[0072] As shown in Figure 7, the half-slot 8 has at its first end in the circumferential direction a first slot end 71 which is curved, and at its other end a second slot end 70 which is straight, in particular not curved.

[0073] The second slot end 70 is thus designed to be purely radially oriented. As the radial distance increases, the second slot end 70 always maintains the same constant circumferential angular position.

[0074] The first slot end 71, on the other hand, has a circumferential angle that increases monotonically, in particular strictly monotonically, with increasing radial distance. Thus, the circumferential angle range covered by the half-slot 8 increases monotonically, in particular strictly monotonically, with increasing radial distance. This allows the adapter shaft to have a higher load-bearing capacity, and in particular, higher forces can be transmitted. Since the adapter shaft 1 is hollow, the half-slot 8 is delimited by the front slot end (70, 71) in the circumferential direction and the rear slot end (70, 71) located at the other end of the half-slot 8.

[0075] The curved shape of the first slot end 71 is preferably circular. Alternatively, a tangent-shaped or elliptical shape can also be realized, since such a shape allows for even greater load-bearing capacity compared to a circular arc.

[0076] The normal of the slot plane of the axial slot 7 is aligned parallel to a tangential direction and / or perpendicular to the normal of the slot plane of the half slot 8.

[0077] It is also important, however, that the oblique groove 60 is not axially continuous, but that the area covered by the oblique groove 60 in the axial direction is shorter than the area covered by the clamping area 5 in the axial direction, which area includes the area covered by the oblique groove 60 in the axial direction.

[0078] In further embodiments of the invention, the step of the stepped bore is arranged axially centrally in the area covered by the bearing 41 in the axial direction. This achieves increased stability.

[0079] List of reference symbols

[0080] 1 adapter shaft

[0081] 2 clamping screws

[0082] 3 bolts

[0083] 4 Retaining ring

[0084] 5 clamping area

[0085] 6 Connection area

[0086] 7 axial slot

[0087] 8 half-slot

[0088] 20 holes

[0089] 40 adapter housings

[0090] 41 warehouses

[0091] 42 Sun gear

[0092] 43 output shaft, planet carrier

[0093] 44 Housing part

[0094] 60 bevel groove

[0095] 70 second slot end

[0096] 71 first slot end

Claims

Patent claims:

1. Adapter shaft for a force-locking connection to a shaft, wherein the adapter shaft is hollow, wherein the adapter shaft has a clamping area and a connecting area, wherein the shaft is inserted into the clamping area, in particular protrudes through the clamping area, and is force-lockingly connected to the clamping area, wherein the clamping area has an axial slot, in particular wherein the normal of the slot plane of the axial slot is aligned in a tangential direction relative to the axis of rotation of the adapter shaft, characterized in that the adapter shaft has a half-slot, wherein the normal of the slot plane of the half-slot is aligned parallel to the axial direction, in particular thus aligned parallel to the axis of rotation of the adapter shaft, wherein the first slot end of the half-slot in the circumferential direction is curved, in particular such thatthat with increasing radial distance, the circumferential angular position of the first slot end increases monotonically, in particular strictly monotonically, in particular so that the circumferential angular range covered by the half-slot 8 with increasing radial distance is formed monotonically, in particular strictly monotonically, increasing i in particular wherein the half-slot extends in the circumferential direction over a circumferential angle whose amount is between 90° and 270°, in particular wherein the half-slot is formed continuously through the adapter shaft in the radial direction, in particular at the circumferential angular positions covered by the half-slot in the circumferential direction, in particular wherein the radial direction is related to the axis of rotation of the shaft and the circumferential direction is also related to the axis of rotation of the shaft.

2. Adapter shaft according to claim 1, characterized in that the other slot end of the half-slot, in particular in the circumferential direction, is designed to be straight, in particular in the radial direction, in particular and / or has a single circumferential angular position.

3. Adapter shaft according to one of the preceding claims, characterized in that the half-slot is arranged axially between the clamping area and the connecting area.

4. Geared motor with adapter shaft according to one of the preceding claims, characterized in that Geared motor, comprising the shaft, in particular rotor shaft, the adapter shaft and a toothed part, in particular sun gear, wherein the toothed part has a running toothing, in particular involute toothing, and a pin axially adjacent to the running toothing or axially spaced from the running toothing, which pin has an external toothing, in particular knurled toothing, wherein the pin is positively connected to the adapter shaft, in particular in that the external toothing is cut into the adapter shaft.

5. Geared motor according to one of the preceding claims, characterized in that the adapter shaft has a stepped bore which has a first region in the axial direction in front of the step of the stepped bore and a second region in the axial direction behind the step, wherein the pin of the sun gear is received in the second region, in particular wherein the clear inner diameter of the first region is larger than the clear inner diameter of the second region, wherein the shaft projects into the first region.

6. Geared motor according to one of the preceding claims, characterized in that the running toothing of the sun gear is axially spaced from the area covered by the journal in the axial direction, in particular wherein the running toothing is in engagement with the respective toothing of planet gears which are rotatably mounted in a planet carrier acting as an output shaft and are in engagement with a ring gear which is connected in a rotationally fixed manner to the housing part of the gear.

7. Geared motor according to one of the preceding claims, characterized in that the inner ring of a bearing is placed on the adapter shaft, the outer ring of which is accommodated in an adapter housing of the geared motor, in particular wherein the bearing is a rolling bearing.

8. Geared motor according to one of the preceding claims, characterized in that the area covered in the axial direction by the pin or its external toothing is encompassed by the area covered in the axial direction by the second area.

9. Geared motor according to one of the preceding claims, characterized in that 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 that the axial position of the step of the stepped bore is encompassed by the area covered by the bearing in the axial direction.

10. Geared motor according to one of the preceding claims, characterized in that the radial wall thickness of the adapter shaft in the area covered by the second area in the axial direction is greater than the radial wall thickness of the adapter shaft in the area of ​​the adapter shaft adjacent to the second area, and / or that the radial wall thickness of the adapter shaft in the area covered by the second area in the axial direction is greater than the radial wall thickness in the remaining section of the connecting area, and / or that the axial width of the half-slot is at least five times smaller than the clear inside diameter of the first area and / or the outside diameter of the shaft in the area covered by the clamping area in the axial direction.

11. Geared motor according to one of the preceding claims, characterized in that three axially directed bores, in particular blind bores, are introduced into the clamping area, in particular wherein the bore axis of each of the three bores is aligned parallel to the axis of rotation of the shaft, in particular wherein the three bores are each designed as blind bores introduced from the axial end face of the clamping area and in particular all three are arranged at the same radial distance, in particular wherein the middle one of the three bores in the circumferential direction has a smaller distance, in particular circumferential angular distance, from a second of the three bores than from the third of the three bores, in particular wherein one of the three bores functions as a balance for the half-slot.

12. Geared motor according to one of the preceding claims, characterized in that the clamping area has an axial slot which passes through the clamping area in the axial direction and in the radial direction and through which a clamping screw projects, and / or that the screw head of the clamping screw rests on a step of the clamping area which is arranged in the clamping area on the first side of the axial slot, wherein on the other side, in particular the second side, of the axial slot the clamping area has a threaded area through which the clamping screw projects and into which the clamping screw is screwed.

13. Geared motor according to one of the preceding claims, characterized in that a limiting element, in particular a bolt, is fastened in the clamping area and projects out of the clamping area, wherein the limiting element limits the screw head in the screw axis direction and / or the limiting element bears against the side of the screw head facing away from the threaded area, in particular for spreading the axial slot, wherein the clamping screw, in particular on the side of the threaded area facing away from the screw head of the clamping screw and / or in the area of ​​the clamping screw protruding from the clamping area, in particular facing away from the axial slot, has an annular groove in which a locking ring is arranged in a form-fitting manner, in particular snapped in, in particular for limiting the spreading of the axial slot.

14. Geared motor according to one of the preceding claims, characterized in that the axial slot opens into the half-slot, wherein the circumferential angular range covered by the axial slot in the circumferential direction is contained in the circumferential angular range covered by the half-slot in the circumferential direction, in particular wherein the circumferential angular range covered by the axial slot in the circumferential direction is spaced apart on both sides in the circumferential direction from the ends of the circumferential angular range covered by the half-slot in the circumferential direction, in particular wherein the slot plane of the axial slot is aligned perpendicular to the slot plane of the half-slot, and / or that an oblique groove is arranged in the clamping area, in particular diametrically opposite the axial slot, in particular thus spaced apart from the axial slot by 180° in the circumferential direction, in particular wherein the area covered by the oblique groove in the axial direction is contained in the area covered by the clamping area in the axial direction.

15. Geared motor according to one of the preceding claims, characterized in that the area covered by the shaft in the axial direction overlaps with the area covered by the bearing in the axial direction, in particular wherein the shaft is received in the first area, in particular in the area covered by the bearing in the axial direction, with an exact fit and / or without play, and / or that the pin is axially spaced from the first area.

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