Gear motor for chain conveying equipment and chain conveying equipment

Abstract

The invention relates to a geared motor, in particular for a chain conveyor system, having a geared gear driven by an electric motor, an electromagnetically actuatable brake being arranged on an end of a rotor shaft of the electric motor facing away from the geared gear in an axial direction, in particular in a direction parallel to a rotational axis of the rotor shaft of the electric motor, the housing of the motor forms a housing for the brake, in particular surrounds the brake, in particular, the output shaft of the speed reducer is connected to a chain wheel of the chain conveyor in a rotationally fixed manner, and in particular, a chain stop device detachably connected to a chain of the chain conveyor is fastened to the housing of the motor, the chain partially winds the sprocket. The invention further relates to a chain conveying device.

Description

Technical Field

[0001] The present invention relates to a reduction motor for a chain conveyor device and a chain conveyor device. Background Art

[0002] As is well known, in a chain drive, a chain is driven by an electric motor. Summary of the Invention

[0003] Therefore, the object of the present invention is to robustly design a reduction motor.

[0004] According to the present invention, the object is achieved by a reduction motor according to the features set forth in claim 1 and a chain conveyor device according to the features set forth in claim 13.

[0005] In a reduction motor for a chain conveyor device, an important feature of the present invention is that the reduction motor has a speed reducer driven by an electric motor,

[0006] wherein an electromagnetically actuatable brake is arranged on an end of the rotor shaft of the electric motor, which is axially, in particular in a direction parallel to the axis of rotation of the rotor shaft of the electric motor, facing away from the speed reducer.

[0007] wherein the housing of the electric motor forms a housing for the brake, in particular the housing of the electric motor surrounds the brake.

[0008] In particular, the output shaft of the speed reducer is non-rotatably connected to a sprocket of the chain conveyor device.

[0009] In particular, a chain stop device detachably connected to the chain of the chain conveyor device is fixed to the housing of the electric motor, wherein the chain partially winds around the sprocket.

[0010] The advantage here is that the motor housing forms a housing for the brake, although the motor housing in particular conducts the force for the chain stop device driven by the reduction motor, and the motor housing also withstands the shaking, which may generate strong vibrations in the chain drive.

[0011] In an advantageous design, the brake is used as a stop brake for the rotor shaft, in particular when tensioning or re-tensioning the chain driven by the reduction motor. The advantage here is that the chain is held on one side by the chain stop device and on the other side by the brake and the sprocket, so that although the chain is under load, the chain links can still be repaired and / or replaced.

[0012] In an advantageous design, the brake has a magnet with an annular recess, and an energizable annular winding is inserted into the recess.

[0013] In particular, the axis of the annular winding is coaxial with the axis of rotation of the rotor shaft.

[0014] Wherein, the rotor shaft has an external tooth portion or is connected in a non-rotatable manner, in particular by means of a key connection, to an annular driving member that is sleeved on the rotor shaft and has an external tooth portion.

[0015] Wherein, a disc-shaped brake pad carrier is sleeved on the driving member, and the internal tooth portion of the brake pad carrier meshes with the external tooth portion of the driving member, in particular such that the brake pad carrier can move in the axial direction.

[0016] Wherein, an armature plate is arranged between the brake pad carrier and the magnet in the axial direction, i.e., in particular in the direction of the rotation axis of the rotor shaft. The armature plate is connected to the magnet in a non-rotatable manner and can move in the axial direction, in particular in such a way that a pin fixed to the magnet and pointing in the axial direction passes through an opening in the armature plate.

[0017] In particular, when the annular winding is energized, the armature plate is attracted towards the magnet against the spring force generated by a spring element supported on the magnet and pressing against the armature plate, such that the brake pad carrier can move freely.

[0018] In particular, when the annular winding is not energized, the spring element presses the armature plate against the brake pad carrier, so that the brake pad carrier is pressed against a braking surface on the side facing away from the magnet. The braking surface is formed on a flange member or on a plate member abutting against the flange member or on the housing of the electric machine. Here, the advantage is that the brake engages automatically when power is off. Thus, increased safety is achieved. Additionally, a release lever can be provided, by means of which the brake can be continuously released by locking the release lever, in particular regardless of whether power is on or off. Thus, braking is prevented during normal operation. However, during chain maintenance or repair, the release lever can be actuated and thereby the engagement of the brake can be caused.

[0019] In an advantageous design, the geared motor has a speed reducer driven by an electric machine.

[0020] Wherein, the speed reducer flange receives a bearing for rotatably supporting the input shaft of the speed reducer on the speed reducer flange. The speed reducer flange is centered and oriented relative to the flange member on the electric machine side, in particular in such a way that centering edges are formed on the speed reducer flange and the centering flange of the flange member abuts against these centering edges.

[0021] Here, the advantage is that a simple and quick connection between the electric machine and the speed reducer is achieved, and very precise orientation and centering can be achieved through the centering mechanism. In addition, the rotor shaft of the electric machine having an external tooth portion can be inserted into the internal tooth portion of the speed reducer input shaft, so that a connection with low or even no acting force can be achieved.

[0022] In an advantageous embodiment, the torque support region and the output flange are formed in particular integrally on the reduction gear housing.

[0023] The support part and the intermediate support rod respectively connect the torque support area to the output flange.

[0024] The output flange receives the bearing of the output shaft of the reducer. The advantage here is that, despite the large play, an enhanced transmission of the reaction torque can be achieved. Although the torque support area can be formed in one piece on the reducer housing, an improved transmission of the reaction force from the output flange to the torque support area can be achieved directly via the support part connected to the output flange.

[0025] In an advantageous design, the crossbeam connects the intermediate strut to the support. Advantageously, in particular, reinforcement can be achieved simply and cost-effectively by means of the molding of the casting.

[0026] In an advantageous embodiment, the central strut is parallel to the axis of rotation of the rotor shaft. This has the advantage that the torque support region does not require additional axial structural length.

[0027] In an advantageous design, the angle values ​​of the plurality of support portions relative to the middle strut are not zero, and in particular the angle values ​​are of the same magnitude, but in different directions. The advantage here is that improved reinforcement can be achieved.

[0028] In an advantageous design, the intermediate strut is arranged in a plane spanned by the support portion. This has the advantage that only a very small structural space is required.

[0029] In an advantageous embodiment, the crossbeam is arranged in a plane spanned by the support portion. This has the advantage that only a small amount of structural space is required.

[0030] In an advantageous embodiment, the distance between the supports increases with the distance from the output flange, in particular increases strictly monotonically. This has the advantage that effective reinforcement can be achieved without taking up unnecessary much structural space.

[0031] In an advantageous embodiment, the axial width of the torque support region, ie in particular the width of the torque support region measured in a direction parallel to the axis of rotation of the rotor shaft, decreases monotonically with increasing distance from the intermediate strut. This has the advantage that the torque support region can be designed to be compact.

[0032] In an advantageous design, the spring interconnects two areas of the reducer housing that are spaced apart from each other in the axial direction. Advantageously, the reducer is sufficiently rigid and can dampen vibrations despite the introduction of vibrations by the conveyor chain through the sprocket.

[0033] In a chain conveyor device, an important feature of the present invention is that the chain conveyor device has a chain, a sprocket, and the above-mentioned reduction motor for the chain conveyor device. The reduction motor has a motor and a speed reducer. The motor has an electromagnetically actuatable brake on the side facing away from the speed reducer. The sprocket is connected to the output shaft of the reduction motor - in particular, in a form-fitting manner. The teeth of the sprocket engage into the links of the chain, in particular for conveying and holding the chain. The housing of the motor forms a housing for the brake, in particular, the housing of the motor surrounds the brake. In particular, the output shaft of the speed reducer is connected to the sprocket in a non-rotatable manner. In particular, a chain stop device that is detachably connected to the chain is fixed to the housing of the motor. The chain partially winds around the sprocket. In particular, an electromagnetically actuatable brake is arranged on the end of the rotor shaft of the motor that faces away from the speed reducer in the axial direction - in particular, in a direction parallel to the axis of rotation of the rotor shaft of the motor.

[0034] An advantage of the subject matter of the present invention is also that it is possible to ensure a quick and simple replacement of the links while having a high working safety. Because no special costs are required. It is only necessary to appropriately provide a release lever and a chain stop device.

[0035] However, since the chain stop device is mounted on the reduction motor, i.e., on the housing-forming component of the reduction motor, no special additional costs are required, and nevertheless, the chain force can be effectively transmitted. This is because during the replacement of the links, the chain force from the chain stop device must be transmitted to the sprocket through the reduction motor.

[0036] In an advantageous design, the chain stop device is fixed to the reduction motor and / or the chain is fixed at the first link of the chain by means of the chain stop device. The advantage here is that the chain force in the reduction motor can be directly guided to the sprocket.

[0037] In an advantageous design, the reduction motor has a motor, and the housing of the motor forms a housing for the brake and / or surrounds the brake. The advantage here is that the brake does not require a separate housing and thus only requires a small amount of effort to form a housing for the brake.

[0038] In an advantageous design, the sprocket engages into the chain in a circumferential angle range greater than 90°, in particular and less than 180°. This circumferential angle range is based on the axis of rotation of the sprocket. The advantage here is that the chain is reliably held.

[0039] In an advantageous design, the brake has a magnet, and the magnet has an annular recess, and an energizable annular winding is embedded in the recess.

[0040] In particular, the axis of the annular winding is coaxial with the axis of rotation of the rotor shaft.

[0041] The rotor shaft has an external tooth section or is connected in a non-rotatable manner, in particular by means of a key connection, to an annular drive element that is slipped onto the rotor shaft and has an external tooth section.

[0042] A disc-shaped brake pad carrier is slipped onto the drive element and engages with the external tooth section of the drive element with its internal tooth section, such that the brake pad carrier is movable in the axial direction.

[0043] An armature plate is arranged axially between the brake pad carrier and the magnet. The armature plate is connected to the magnet in a non-rotatable manner and is movable in the axial direction in such a way that a pin fixed to the magnet and pointing axially passes through an opening in the armature plate.

[0044] When the annular winding is energized, the armature plate is attracted towards the magnet against the spring force exerted by a spring element supported on the magnet and pressing against the armature plate, such that the brake pad carrier is free to move.

[0045] In particular, when the annular winding is not energized, the spring element presses the armature plate against the brake pad carrier, so that the brake pad carrier is pressed against a braking surface on the side facing away from the magnet. The braking surface is formed on a flange part or on a plate part abutting against the flange part or on the housing of the electric motor.

[0046] The advantage here is that the brake engages automatically when de-energized, i.e., automatically switches to a safe state.

[0047] In an advantageous design, the release lever is connected to an axially movable pin by means of a pivot joint, and / or

[0048] The release lever is supported at a pivot point that is arranged on the flange part or bearing flange of the electric motor.

[0049] The pin passes through the magnet and through the opening in the armature plate and is configured widened or connected to a component for such widening on the side of the armature plate facing away from the magnet, such that the pin is axially restricted by means of the widening. The advantage here is that manual release can be achieved. In particular, the release lever can be brought into a rotational position in which the brake is released.

[0050] In an advantageous design, the release lever can be locked by a locking device of the brake, in particular on the magnet. The advantage here is that the safe state of the brake can be fixed.

[0051] In an advantageous design, the housing of the electric motor, which is formed in particular in a multi-piece manner, forms the housing not only for the electric motor stator but also for the brake.

[0052] In particular, the release lever extends through the housing into the environment of the electric motor. The advantage here is that the release lever can be detachably connected to the housing, i.e., in particular, can be locked to the housing.

[0053] In an advantageous design, the brake is arranged on the axial end region of the rotor shaft of the electric motor facing away from the speed reducer. The advantage here is that sufficient free space is provided for actuating the release lever.

[0054] In an advantageous design, a spring connects a first region of the speed reducer housing to a second region of the speed reducer housing,

[0055] In particular, the first region and the second region are spaced apart in the axial direction, in particular, spaced apart in a direction parallel to the axis of rotation of the rotor shaft.

[0056] In particular, the spring is arranged on the outer side of the speed reducer housing. The advantage here is that although the forces conducted through the housing are large, the housing can still be stabilized and sufficient rigidity of the housing can be maintained. In particular, vibrations of the housing can be suppressed.

[0057] The advantage here is that the chain conveyor is designed to ensure the repair of the chain with high safety. For this purpose, the chain stop device can be fixed to the geared motor, and the sprocket can withstand the chain tension and hold the chain by means of the speed reducer with the aid of a stop brake arranged on the rotor shaft of the electric motor driving the speed reducer.

[0058] Further advantages are given by the dependent claims. The invention is not limited to the feature combinations of the claims. For a person skilled in the art, in particular from the object set and / or by comparison with the prior art, other reasonable combination possibilities of the claims and / or single claim features and / or features of the description and / or features of the drawings can be obtained. Description of the Drawings

[0059] The present invention will now be described in detail with reference to the schematic drawings:

[0060] In Figure 1 a chain conveyor with a geared motor according to the present invention is schematically shown.

[0061] In Figure 2 a side view of the geared motor is shown in section.

[0062] In Figure 3 a side view of the geared motor is shown.

[0063] In Figure 4 an axonometric view of the geared motor is shown.

[0064] List of Reference Signs:

[0065] 1 Chain

[0066] 2 Sprocket

[0067] 3 Output shaft

[0068] 4 Chain stop device

[0069] 20 Input shaft

[0070] 21 Support part

[0071] 22 Reducer flange

[0072] 23 Flange part on the motor side

[0073] 24 Rotor shaft

[0074] 25 Bearing flange

[0075] 26 Brake pad carrier

[0076] 27 Armature plate

[0077] 28 Magnet

[0078] 29 Release lever

[0079] 30 Motor

[0080] 31 Reducer

[0081] 32 Spring

[0082] 40 Torque support area

[0083] 41 Intermediate strut Detailed implementation mode

[0084] As shown in the figure, the chain device has a reduction motor, and the output shaft 3 of the reduction motor drives the sprocket 2. The teeth of the sprocket mesh into the notches of the links of the chain 1, and thus the sprocket drives the chain 1.

[0085] Preferably, the chain 1 has a length greater than 20 meters and is used in mining equipment or mining equipment for transporting rocks, ores or coal.

[0086] The reduction motor has a motor 30, and the motor drives the reducer 31. The output shaft of the reducer serves as the output shaft 3 of the reduction motor.

[0087] An electromagnetically operable brake is arranged on the end of the rotor shaft of the motor 30 axially deviating from the reducer. When the chain 1 needs to be tensioned or re-tensioned, the brake acts as a stop brake for the rotor shaft 24.

[0088] To ensure operation, the brake can additionally be manually released. For this purpose, a release lever 29 is provided, by means of which the brake remains released regardless of whether the brake coil is energized.

[0089] The brake has a magnet 28, which is made of ferromagnetic material and has an annular recess, the ring axis of the recess being coaxial with the axis of rotation of the rotor shaft and the recess facing the speed reducer.

[0090] An energizable annular winding is embedded in the annular recess of the magnet 28 and sealed and potted with a filler.

[0091] An annular carrier is sleeved on the rotor shaft, which has an external toothing that meshes with the internal toothing of a brake disc carrier 26 sleeved on the carrier. The carrier is preferably connected to the rotor shaft in a non-rotatable manner by means of a key connection. The brake disc carrier 26 is arranged on the carrier in an axially movable manner.

[0092] The armature plate 27 is made of ferromagnetic material and is arranged axially between the brake disc carrier 26 and the magnet 28.

[0093] When the annular winding is energized, in particular by means of a pin fixed in the magnet 28 passing through an opening of the armature plate 27, the armature plate 27, which is non-rotatable relative to the magnet 28 but axially movable, is attracted towards the magnet 28 against the spring force generated by a spring element supported in the magnet 28. When the annular winding is not energized, the spring element presses the armature plate 27 against the brake disc carrier 26, so that the brake disc carrier 26 is pressed against a brake surface on the side facing away from the armature plate 27, which brake surface is formed on the bearing flange or on a component connected to the bearing flange.

[0094] The release lever 29 is pivotally supported on the magnet 28 or on a component connected to the magnet 28 relative to a pivot point, so that the pin can move linearly in the axial direction during its rotational movement.

[0095] The pin passes through a notch of the magnet 28 and through an opening of the armature plate 27. Here, the pin widens on the side of the armature plate 27 facing away from the magnet 28 and thus pulls the armature plate 27 towards the magnet 28 when the release lever is actuated, wherein when the release lever 29 is actuated, the spring force generated by the spring element is overcome, even if the annular winding is not energized. Thus, manual release can be achieved. The engagement of the brake is only achieved when the armature plate 27 is released by a corresponding rotational position of the release lever 29, because when the release lever 29 rotates, the pin moves in the axial direction and presses the armature plate 27 towards the magnet 28 here.

[0096] The pin widens in the end region facing away from the magnet 28 for this purpose, in particular such that the widened end region of the pin abuts against the armature plate 27 and does not slip through the opening of the armature plate 27.

[0097] Before tensioning or retensioning the chain 1, first cut off the reduction motor, that is, bring the chain 1 to zero speed.

[0098] Then, by means of the chain stop device 4, the chain 1 is detachably connected to the fixed part of the device at one of its links, so that the chain 1 cannot move further here. Preferably, the chain stop device 4 is mounted on the reduction motor, in particular between the reducer and the motor, so that the chain 1 is stopped by means of the chain stop device 4 and is detachably connected to the housing of the reduction motor.

[0099] After the reduction motor stops and the chain 1 also stops, the brake is activated. This is achieved on the one hand by operating the release lever 29 and additionally de-energizing the coil of the brake. Thereby the brake engages and thus prevents the rotational movement of the rotor shaft, and this rotational movement also stops the rotational movement of the output shaft 3 of the reducer 31 via the reducer 31.

[0100] In this way, the chain 1 between the sprocket 2 and the chain stop device 4 can be repaired. For example, even when the remaining area of the chain 1 is under load, the links of the chain 1 can be replaced, i.e., substituted, in this area.

[0101] Thus, the chain tension can be formed.

[0102] After the link is installed, the chain 1 can be fully engaged again. Therefore, the chain stop device 4 is then disengaged from the chain 1, and thus the chain 1 is subsequently released, and in addition, the brake is released by energizing the coil of the brake and operating the release lever 29.

[0103] The motor is directly flange-connected to the reducer and is centered here. By this direct flange centering, coupling devices can be saved and thus the structural length can be shortened. The flange centering can be achieved by only constructing the reducer flange 22 on the reducer side with corresponding centering devices and no further adaptation is required on the motor side.

[0104] Due to the rotor shaft with external teeth (which only needs to be inserted into the internal teeth of the reducer input shaft when connecting the motor to the reducer), a force-free or at least low-force flange connection of the motor to the reducer can be achieved.

[0105] Furthermore, by casting the torque support region 40 on the reducer flange 22, that is, in particular constructing the reducer flange 22 and the torque support region 40 in one piece, the reducer flange 22 is stabilized. The torque support region 40 is connected to the output flange of the reducer through the support 21 and the intermediate struts 41 arranged between the supports 21, and the output flange receives the bearing of the output shaft of the reducer.

[0106] The intermediate strut 41 is parallel to the axis of rotation of the rotor shaft of the electric machine. The support part 21 is inclined with respect to the intermediate strut 41, in particular, the support part has a non-zero angle with respect to the intermediate strut 41.

[0107] Here, the angle of the support part 21 with respect to the intermediate strut 41 has the same absolute value (magnitude), but different signs (directions).

[0108] The support part 21 spreads open the following plane, and the intermediate strut 41 is also located in this plane.

[0109] The end regions of the support part 21 and the intermediate strut 41 facing the electric machine are connected by means of a torque support region 40. The other end regions also lead into an output flange, and this output flange receives a bearing for rotatably supporting the output shaft.

[0110] Axially, that is, in the direction of the axis of rotation of the rotor shaft of the electric machine, a cross beam arranged between the torque support region 40 and the output flange connects the support part 21 and the intermediate strut 41.

[0111] Therefore, the torque support part, that is, in particular the torque support region 40, is rigidly connected to the output flange.

[0112] In order to further strengthen and / or suppress resonance, a spring 32 is provided, and this spring connects two regions spaced apart from each other in the axial direction.

[0113] The rotor shaft 24 is rotatably supported by means of a bearing received in a bearing flange 25.

[0114] In other embodiments according to the invention, the chain stop device 4 is installed at different positions, so that a longer section of the chain between the sprocket 2 and the chain stop device 4 can be replaced.

[0115] It is also possible in other embodiments according to the invention that, after installing the chain stop device 4, the reduction gear motor is first operated at a very low speed in order to tension the chain 1 in the conveying region and then the brake is activated in order to maintain the chain tension thus achieved, while one or more chain links in the region of the chain 1 between the chain stop device 4 and the sprocket 2 are replaced and / or exchanged.

[0116] The brake is arranged in the motor housing. Therefore, the brake is surrounded and protected by the motor housing.

[0117] The input shaft 20 of the reduction gear has an external tooth part at its end region facing the electric machine and / or the brake, and the external tooth part of the input shaft 20 is inserted into the internal tooth part of the rotor shaft 24. Therefore, a relatively high torque can be transmitted and the alignment error of the shaft 20 with respect to the rotor shaft 24 can be compensated. For this purpose, the teeth of the internal tooth part and / or the teeth of the external tooth part are preferably configured to be spherical.

[0118] In order to align the rotational axis of the input shaft 20 as precisely as possible with the rotational axis of the rotor shaft 24 when the electric machine 30 is connected to the speed reducer 31, the speed reducer flange 22, which receives the bearing for rotatably supporting the input shaft on the speed reducer flange, is centered and oriented relative to the electric machine flange, i.e., the flange part 23, in such a way that centering edges are formed on the speed reducer flange 22 and the centering flange of the flange part 23 abuts against these centering edges. In this way, a high-precision orientation can be achieved. The toothed coupling formed by the internal tooth part and the external tooth part compensates for the remaining tolerances.

[0119] As Figure 2 shown, a spring 32 mounted on the speed reducer connects two regions of the housing of the speed reducer 31 that are spaced apart from each other in the axial direction, i.e., in particular in the direction of the rotational axis of the rotor shaft of the electric machine 30. In this way, resonance can be suppressed and the stability and rigidity of the speed reducer 31 can be increased.

[0120] In a circumferential angle range that is particularly greater than 90°, in particular and less than 180°, relative to the rotational axis of the sprocket 2, the sprocket 2 engages into the chain 1. Thus, the removal of the link to be replaced can be achieved even when the chain region is tensioned.

Claims

1. A reduction motor, especially a reduction motor for a chain conveyor device, The reduction motor has a speed reducer driven by an electric motor, Characterized in that, An electromagnetically actuable brake is arranged on the end of the rotor shaft of the electric motor that faces away from the speed reducer in the axial direction - especially in a direction parallel to the axis of rotation of the rotor shaft of the electric motor), The housing of the electric motor forms a housing for the brake, especially the housing of the electric motor surrounds the brake, In particular, the output shaft of the speed reducer is connected to the sprocket of the chain conveyor device in a non-rotatable manner, In particular, a chain stop device that is detachably connected to the chain of the chain conveyor device is fixed to the housing of the electric motor, and the chain partially wraps around the sprocket.

2. The reduction motor according to claim 1, Characterized in that, The brake - especially when tensioning or re-tensioning the chain driven by the reduction motor - acts as a stop brake for the rotor shaft.

3. The reduction motor according to any one of the preceding claims, Characterized in that, The brake has a magnet, the magnet has an annular recess, and an energizable annular winding is embedded in the recess, In particular, the axis of the annular winding is coaxial with the axis of rotation of the rotor shaft, The rotor shaft has an external tooth portion or is especially connected in a non-rotatable manner to an annular driving member with an external tooth portion that is sleeved on the rotor shaft by means of a key connection, A disc-shaped brake pad carrier is sleeved on the driving member and meshes with the external tooth portion of the driving member with the internal tooth portion of the brake pad carrier, especially such that the brake pad carrier can move in the axial direction, An armature plate is arranged between the brake pad carrier and the magnet in the axial direction, that is, especially in the direction of the axis of rotation of the rotor shaft. The armature plate is connected to the magnet in a non-rotatable manner and can move in the axial direction. In particular, a pin fixed to the magnet and especially pointing in the axial direction passes through an opening of the armature plate, In particular, when the annular winding is energized, the armature plate is attracted to the magnet against the spring force generated by a spring element supported on the magnet and pressing against the armature plate, so that the brake pad carrier can move freely, In particular, when the annular winding is not energized, the spring element presses the armature plate against the brake pad carrier, so that the brake pad carrier is pressed against a braking surface on the side facing away from the magnet. The braking surface is formed on a flange member or on a plate member abutting against the flange member or on the housing of the electric motor.

4. The reduction motor according to any one of the preceding claims, Characterized in that, The reducer flange (22) receives a bearing for rotatably supporting the input shaft (20) of the reducer on the reducer flange (22). The reducer flange is centered and oriented relative to the flange member (23) on the motor side. In particular, centering edges are formed on the reducer flange (22), and the centering flange of the flange member (23) abuts against the centering edges.

5. The reduction motor according to any one of the preceding claims, Characterized in that, A torque support area and an output flange are formed on the reducer housing - especially integrally. The support part (21) and the intermediate support rod (41) respectively connect the torque support area with the output flange, and the output flange receives the bearing of the output shaft of the reducer.

6. A geared motor according to any one of the preceding claims, It is characterized in that The cross beam connects the middle support rod (41) and the support part (21).

7. A geared motor according to any one of the preceding claims, It is characterized in that The middle support rod (41) is parallel to the rotation axis of the rotor shaft, and / or, The angle values ​​of the multiple support parts (21) relative to the middle support rod are not zero, and in particular, the angle values ​​are the same in size, but the directions of the angle values ​​are different.

8. A geared motor according to any one of the preceding claims, It is characterized in that The middle strut is arranged in a plane spanned by the support portion (21).

9. A geared motor according to any one of the preceding claims, It is characterized in that The cross beam is arranged in a plane spanned by the support portion (21).

10. A geared motor according to any one of the preceding claims, It is characterized in that The distance between the supports (21) increases with increasing distance from the output flange, in particular increases strictly monotonically.

11. A geared motor according to any one of the preceding claims, It is characterized in that The axial width of the torque support region, ie in particular the width of the torque support region measured in a direction parallel to the axis of rotation of the rotor shaft, decreases monotonically with increasing distance from the central strut.

12. A geared motor according to any one of the preceding claims, It is characterized in that The spring connects two areas of the retarder housing which are spaced apart from one another in the axial direction to one another.

13. A chain conveyor device, It is characterized in that The chain conveyor device comprises a chain, a sprocket and a reduction motor according to any one of the preceding claims, The electric motor of the geared motor has an electromagnetically actuated brake on its side facing away from the gearbox of the geared motor. The sprocket is connected to the output shaft of the geared motor, in particular in a form-locking manner. The teeth of the sprocket mesh with the links of the chain, especially for conveying and holding the chain, The housing of the electric machine forms a housing for the brake, in particular surrounds the brake, In particular, the output shaft of the reducer is connected to the sprocket in a manner that is non-rotatable relative to each other. In particular, a chain stopper device is fixed to the housing of the motor and is detachably connected to the chain, and the chain is partially wound around the sprocket. In particular, an electromagnetically actuatable brake is arranged at the end of the rotor shaft of the electric machine facing away from the reduction gear in the axial direction, in particular in a direction parallel to the rotational axis of the rotor shaft of the electric machine.

14. The chain conveyor device according to claim 13, It is characterized in that The chain stopper is fixed on the reduction motor. and / or, The chain is fixed at the first chain link of the chain by means of a chain stopper which is fixed to the gear motor.

15. Chain conveyor device according to any one of the preceding claims, It is characterized in that The geared motor has an electric motor, the housing of which forms a housing for the brake and / or surrounds the brake.

16. Chain conveyor device according to any one of the preceding claims, It is characterized in that The sprocket is engaged into the chain over a circumferential angle range greater than 90°, in particular and less than 180°, and / or, The release lever is connected to the axially movable pin by means of a pivot joint, and / or, The release lever is supported at a pivot point which is arranged on the flange of the electric machine or on the bearing flange, The pin passes through the magnet and through the opening of the armature plate and is configured widened or connected to a component for such widening on the side of the armature plate facing away from the magnet, such that the pin is axially restricted by means of the widening, and / or, The release lever can be locked by the locking device of the brake, in particular locked to the magnet, and / or, The housing of the electric machine, in particular formed in multiple parts, forms a housing not only for the electric machine stator but also for the brake, In particular, the release lever passes through the housing and extends into the surroundings of the electric machine, and / or, The brake is arranged in the axial end region of the rotor shaft of the electric machine facing away from the reduction gear, and / or, A spring connects a first region of the reduction gear housing to a second region of the reduction gear housing, In particular, the first region and the second region are spaced apart in the axial direction, in particular spaced apart in a direction parallel to the axis of rotation of the rotor shaft, In particular, the spring is arranged on the outer side of the reduction gear housing.

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