Roller module for a roller conveyor with a basin-shaped base body

Abstract

The invention relates to a roller conveyor (10) with a spindle drive. According to the invention, the base body of the roller module (30) is configured in a pot shape.

Description

Technical Field

[0001] The present invention relates to a roller module according to the preamble of claim 1 and a roller conveyor having such a roller module. Background Technology

[0002] A roller conveyor is known from EP 2 163 495 B1, designed for conveying relatively light items. The conveyor rollers extend across the entire width of the conveying path, wherein each roller has a cylindrical section at its two opposite ends along its axis, on which the items are placed. The items are, for example, approximately rectangular transport plates, which, for example, are loaded with workpieces to be manufactured within production equipment. Each conveyor roller has a unique rotary bearing at its two opposite ends along its axis. The conveyor rollers are driven by a so-called spindle drive, which is also used within the framework of this invention.

[0003] A further improvement on EP 2 163 495B1 roller conveyor is known from DE 10 2022 203 906 A1, which is suitable for conveying heavier items. The conveyed items are, for example, battery modules for electrically powered motor vehicles, wherein the roller conveyor is used during its manufacture and / or disassembly. The increased load-bearing capacity is achieved primarily by setting two or more separate tracks for small conveyor rollers. Each conveyor roller is supported by two swivel bearings. The conveyor rollers, together with the swivel bearing structure and two drive wheels, are modularly constructed, wherein the corresponding roller modules are fastened to a load-bearing profile extending along the conveying direction of the roller conveyor. Summary of the Invention

[0004] Within the framework of this invention, a roller conveyor with further enhanced load-bearing capacity should be realized, starting from DE 10 2022 203 906 A1, for transporting even heavier battery modules. Here, the width of the load-bearing profile and the width of the conveying section measured between the lateral guides should remain the same. The roller module should be constructed accordingly to allow the use of larger rotary bearings, wherein the conveying rollers are simultaneously constructed more robustly. Here, the wall thickness of the conveying rollers should be large enough to allow the use of a sleeve-shaped casing made of metal, having a wall thickness of at least 4 mm, if necessary. The roller module should also be constructed to accommodate forces acting transversely to the conveying direction during conveying operation. These forces can be introduced into the roller module through the lateral guides or through frictional forces introduced into the roller module through the circumferential surface of the conveying rollers. The roller assembly and drive unit should be able to be fastened to the load-bearing profile at arbitrary intervals. This allows for flexible adaptation to the load and size of the workpiece carrier.

[0005] Claim 1 proposes a roller module comprising an integral base that can be directly fastened to an associated load-bearing profile, wherein the base is basin-shaped, forming a roller recess that opens toward a conveying plane; wherein a drive assembly includes a shaft arranged concentrically with the roller axis; wherein the shaft has a first end and an opposing second end along the direction of the roller axis; wherein the shaft spans the roller recess such that it is supported perpendicularly to the conveying plane at the first and second ends, respectively, on the base; wherein a conveying roller annularly surrounds the shaft, such that the conveying roller portion... The shaft extends segmentally into the roller recess, wherein first and second rotary bearings are arranged within the conveyor roller, wherein the first and second rotary bearings are received there on the shaft body, wherein a first drive wheel annularly surrounds the shaft body, wherein the first drive wheel extends segmentally into the roller recess, wherein the first drive wheel is directly and securely connected to the associated conveyor roller, wherein the base has a first sidewall in the region of the first end of the shaft body, the first sidewall being oriented transversely to the roller axis, wherein the second drive wheel is constructed such that the drive shaft is arranged outside the base body spaced apart from the first sidewall along the direction of the roller axis.

[0006] The first and second drive wheels are preferably constructed as bevel gears, wherein they mesh directly with each other. The bevel gears are preferably constructed in a straight meshing configuration, but can also be constructed in an oblique meshing or circular arc meshing configuration. The load-bearing profile preferably extends parallel to the conveying direction with a constant, substantially rectangular cross-sectional shape, wherein the load-bearing profile is most preferably manufactured from aluminum by extrusion. The cross-sectional shape preferably forms at least one back-cut groove, which is most preferably T-shaped. The base and the auxiliary body described below are preferably screwed onto the load-bearing profile with at least one back-cut groove, most preferably achieved using at least one slider and / or a T-shaped screw. The shaft is preferably constructed as a single piece.

[0007] Advantageous improvements and modifications of the invention are described in the dependent claims.

[0008] The roller module can be specified to include an integral auxiliary body that directly contacts the base, such that the auxiliary body is oriented relative to the base. The auxiliary body can be directly fastened to a load-bearing profile belonging to the base, and a corresponding third rotary bearing is received within the auxiliary body. This allows for an increase in the outer diameter of the conveyor roller relative to the diameter of the drive wheel, resulting in a robust and load-bearing conveyor roller. The fastening of the auxiliary body remains stable, ensuring precise orientation of the first and second drive wheels for low-wear engagement.

[0009] It can be specified that the shaft body remains in the base only at its first end along the direction of the roller axis. As a result, the deformation caused by the driving force has a relatively small impact on gear engagement.

[0010] It can be specified that the shaft body is equipped with a first helical member concentric with the roller axis, the first helical member being screwed into the shaft body at its first end, wherein the first helical member penetrates the base, and wherein a first support recess is provided in the base adjacent to the helical member, the shaft body being fitted into the first support recess in a form-locking manner, such that the shaft body is supported perpendicular to the conveying plane. The first helical member preferably penetrates the first sidewall of the base, particularly a circular through-hole in the first sidewall. On the opposite side of the roller recess, i.e., at the second end of the shaft body, the base body preferably has a second support recess, the shaft body being fitted into the second support recess in a form-locking manner, such that the shaft body is supported perpendicular to the conveying plane. The first and second support recesses preferably open toward the conveying plane, so that the shaft body can be easily assembled into the base. Correspondingly, they only act in a supporting manner with respect to forces pointing away from the conveying plane. The force is preferably the weight of the conveyed item being transported by the roller conveyor.

[0011] It can be specified that the shaft body has a pair of wrench faces at the first and / or second ends, the wrench faces being fitted into matching first or second support recesses in the base, so that the shaft body is fixed about the roller axis to resist torsion. The corresponding torsion stop is particularly inexpensive. It also prevents the first screw from loosening.

[0012] It can be specified that the first drive wheel has at least two engagement hooks extending along the roller axis, wherein the engagement hooks directly engage with the conveyor roller. The corresponding connection is particularly cost-effective, and the engagement hooks can be easily assembled. The engagement hooks are preferably evenly distributed around the roller axis, and most preferably, the engagement hooks are identical in construction.

[0013] It can be specified that, in addition to the form-locking engagement between the hook and the conveyor roller, an additional form-locking device is provided, which causes the form-locking transmission of torque between the first drive wheel and the conveyor roller. Thus, the hook can be constructed so flexibly that the first drive wheel can be assembled at the conveyor roller with minimal force. Nevertheless, the corresponding connection can transmit sufficiently high torque. The aforementioned form-locking device is preferably a groove on the end side of the conveyor roller, into which a matching protrusion at the first drive wheel is inserted.

[0014] A separate, integrated cover can be provided, which is securely connected to the base such that it partially covers the roller recess. The conveying roller passes through a through-hole in the cover such that the conveying plane is spaced apart from the cover. A first drive wheel is arranged beside the cover along the roller axis. This allows the use of a first drive wheel with a large diameter. The cover is preferably plate-shaped, arranged parallel to the conveying plane. The cover is preferably fastened only, particularly screwed, to the base. A corresponding second auger is preferably arranged at the corner of an imaginary rectangle.

[0015] It can be specified that the conveyor rollers are constructed as a single unit, wherein the conveyor rollers are made of plastic or metal. Such conveyor rollers can withstand large forces.

[0016] It can be specified that the conveyor roller has a sleeve-shaped housing made of metal, the housing forming a circumferential surface, wherein a core made of plastic is arranged inside the housing, and first and second rotary bearings are fastened to the core. This type of conveyor roller can support greater forces than the one-piece conveyor rollers described above. The aforementioned housing is preferably made of steel.

[0017] Furthermore, protection is sought for a roller conveyor comprising at least two load-bearing profiles extending parallel to the conveying direction, wherein the load-bearing profiles are securely connected to each other, wherein a plurality of roller modules according to the invention are fastened to each load-bearing profile, wherein all roller axes are oriented parallel to each other, and wherein drive axes associated with the load-bearing profiles coincide. The roller modules are preferably evenly distributed along the associated load-bearing profiles. The roller conveyor may include at least one drive motor in a rotational drive connection with a respective associated drive shaft adjacent to the roller module, wherein the drive motor is fastened to the load-bearing profile associated with the associated drive shaft.

[0018] It can be specified that each load-bearing profile is assigned a drive shaft, which is in drive connection with all roller modules of the associated load-bearing profile. At least one auxiliary shaft is provided, and two adjacent drive shafts are in rotational drive connection via the auxiliary shaft, wherein the auxiliary shaft is oriented parallel to the roller axis, and the aforementioned rotational drive connection is implemented alongside the roller modules. The roller conveyor according to the invention requires significantly fewer roller modules than known roller conveyors due to its high load-bearing capacity. Therefore, a larger spacing between roller modules can be implemented compared to known roller conveyors. The resulting gap between roller modules can be used for the drive connection of two drive shafts. The corresponding drive structure can then be implemented significantly more simply compared to known conveyors. In particular, the auxiliary body with a third rotary bearing and a second drive wheel can be used for this purpose without modification.

[0019] It can be specified that at least one load-bearing profile is provided with a lateral guide, the lateral guide extending parallel to the conveying direction, wherein the lateral guide is fastened only to a cover body associated with the load-bearing profile, and wherein the lateral guide is fastened to multiple covers. In maintenance cases, the structural assembly consisting of the lateral guide and the associated cover can be disassembled or reassembled as a whole. This saves working time. During initial assembly, it is preferable to first fasten the cover body to the base, and then fasten the lateral guide to the respective associated cover body, thus achieving mutual orientation.

[0020] It goes without saying that the features mentioned above and to be described below can be used not only in their respective prescribed combinations, but also in other combinations or individually, without departing from the scope of the invention. Attached Figure Description

[0021] The invention will now be explained in more detail with reference to the accompanying drawings.

[0022] Figure 1 A roller conveyor having a plurality of roller modules according to the invention is shown; Figure 2 A perspective view of a roller module according to the invention is shown, the roller module being fastened to an associated load-bearing profile; Figure 3 It shows that according to Figure 1 A partial perspective view of the layout structure, in which the first drive wheel can be seen; Figure 4 The longitudinal section of the conveyor roller together with its shaft is shown; Figure 5 A perspective view of the conveyor roller is shown starting from the first end of the shaft; and Figure 6 A perspective view of the basin-shaped substrate is shown. Detailed Implementation

[0023] Figure 1 A roller conveyor 10 having a plurality of roller modules 30 according to the invention is shown. The roller conveyor 10 includes two load-bearing profiles 14 extending parallel to the conveying direction 11. The load-bearing profiles 14 are manufactured from aluminum by extrusion, such that the load-bearing profiles have a constant cross-sectional shape throughout their entire length. The load-bearing profiles 14 are securely connected to each other by connecting struts 16, wherein the connecting struts 16 are also implemented as aluminum profiles.

[0024] Multiple roller modules 30 are fastened to each carrier profile 14, wherein the roller modules 30 are evenly distributed along the conveying direction 11. Each roller module 30 defines a roller axis 13 and a drive axis 12. All roller axes 13 are parallel to each other and oriented perpendicular to the conveying direction 11. The drive axes 12 associated with the carrier profile 14 coincide, such that all roller modules 30 of the carrier profile 14 can be driven by a common drive shaft 20. The corresponding drive device is known from EP 2 163 495 B1. The rotational drive connection between the drive shaft 20 and the roller module 30 can optionally be constructed with or without a slip clutch. The drive shaft 20 has a hexagonal cross-sectional shape along its entire length, wherein the drive shaft is embedded in a matching drive port of the associated second drive wheel ( Figure 2 (in number 74).

[0025] The entire drive unit is covered by various covers 17 to prevent injury to the operator. Figure 1 By removing a portion of cover 17, the internal structure of the drive unit can be seen.

[0026] It should also be noted that the auxiliary shaft 21 extends parallel to the roller axis 13. The two drive shafts 20 are in a rotational drive connection via the auxiliary shaft 21. The auxiliary shaft has a connection at its opposite end to the first drive wheel (…). Figure 3Drive wheels similar to number 43 in the diagram, wherein these drive wheels are similar to the second drive wheel ( Figure 2 The drive wheel (number 72 in the text) engages. The last mentioned drive wheel includes the auxiliary body 71 and the third rotary bearing ( Figure 2 The component numbered 73 is constructed identically to the corresponding component at the roller module 30 according to the present invention.

[0027] In addition Figure 1 Two lateral guides 83 can be seen, which are fastened to the respective associated roller modules 30. Furthermore, a drive motor 22 in the form of an electronically controlled variable speed motor can be seen, which is similar to an auxiliary shaft 21 in a rotational drive connection with the associated drive shaft 20. In both cases, the rotational drive connection for the drive shaft 20 is implemented alongside the roller modules 30.

[0028] Figure 2 A perspective view of a roller module 30 according to the invention is shown, the roller module being fastened to an associated support profile 14. For this purpose, the support profile 14 is provided with a plurality of back-cut grooves 15, which are preferably T-shaped in cross-section. A third helical member 33 is embedded in the back-cut grooves 15, the third helical member currently configured as a T-head helical member with a tightening shoulder nut, and the base 60 and the auxiliary body 70 are screwed to the support profile 14 via the third helical member.

[0029] The base 60 and auxiliary body 70, constructed as a single unit, abut directly against each other at the orientation profile 75, ensuring precise orientation relative to each other, particularly with the roller axis 13 and drive axis 12 oriented perpendicular to each other. The auxiliary body 70 carries a third rotary bearing 73, currently constructed as a radial deep groove ball bearing. A second drive wheel 72 is rotatably received in the third rotary bearing 73 about the drive axis 12. The second drive wheel 72 is currently constructed as a straight-meshing bevel gear, with the second drive wheel and the adapted first drive wheel ( Figure 3 (43) Engages, and the second drive wheel is connected to the conveyor roller 40 in an anti-rotational manner.

[0030] The conveyor roller 40 is rotatably received in the base 60 about the roller axis 13. The roller recess of the basin-shaped base 60 is covered by a cover 80, which has a rectangular opening 81 through which the conveyor roller 40 extends outward, allowing its circumferential surface 44 to contact the conveyed item in the area of ​​the conveying plane. The cover 80 is screwed onto the base 60 by means of four second screws 32, wherein... Figure 2 Only two of them can be seen. The cover body 80 is provided with a fastening profile 82, and the lateral guide portion 83 is fastened to the fastening profile.

[0031] In addition Figure 2 The second end of shaft 50 can be seen in the middle. Figure 4 (52 in the figure), the second end is provided with a pair of wrench faces 53, which are constructed flat and parallel to each other. The base 60 has a matching mating face such that the shaft 50 is fixed around the roller axis 13 to resist torsion.

[0032] Figure 3 It shows that according to Figure 1 A partial perspective view of the arrangement structure, in which the first drive wheel 43 can be seen. The first end 51 of the shaft 50 is screwed to the first sidewall 61 of the base 60 by means of a first helical member 31. The first helical member 31 is arranged concentrically with the roller axis 13, wherein the first helical member is screwed into the shaft 50 on its end side, and wherein the first helical member passes through a circular through-hole in the first sidewall 61.

[0033] The conveying roller 40 is securely connected to the first drive wheel 43, which surrounds the shaft 50 and partially extends into the roller recess 65 of the base 60. The first drive wheel 43 is arranged beside the cover body 80 along the direction of the roller axis 13, wherein the cover body 80 partially covers the roller recess 65 of the base 60. The lateral guide 83 is securely connected to the cover body 80 such that the lateral guide does not touch the first drive wheel 43.

[0034] The first drive wheel 43 is also constructed as a straight-meshing bevel gear, wherein the bevel gear directly meshes with the second drive wheel 72. The drive shaft 20, rotatable about the drive axis 12, has a hexagonal cross-sectional shape along its entire length, wherein the drive shaft is arranged outside the basin-shaped base 60. The drive shaft is arranged, in particular, spaced apart from the first sidewall 61 along the direction of the roller axis 13 and further spaced apart from the head of the first helical member 31.

[0035] Figure 4A longitudinal section of the conveyor roller 40 together with the shaft 50 is shown. The cutting plane includes the roller axis 13. The conveyor roller 40 is currently constructed as a single unit. The conveyor roller has a cylindrical circumferential surface 44 about the roller axis 13. Alternatively, the circumferential surface 44 can also be formed of metal from a separate, sleeve-like housing, which preferably has a wall thickness of at least 4 mm. The conveyor roller 40 is tubularly constructed about the roller axis 13 such that the conveyor roller annularly surrounds the shaft 50. A first rotary bearing 41 and a second rotary bearing 42, which are currently constructed as radial deep groove ball bearings, are received within the conveyor roller 40. The inner rings of the first rotary bearing 41 and the second rotary bearing 42, concentric with the roller axis 13, are penetrated by the shaft 50, which is substantially cylindrical about the roller axis 13 along its entire length. Axial retention at the first rotary bearing 41 and at the second rotary bearing 42 is achieved by means of a retaining ring 54, which is received in a suitable groove in the shaft body 50.

[0036] In addition Figure 4 As can be seen, the biting hook 45 is used to directly engage the first drive wheel 43 with the conveyor roller 40. The biting hook 45 extends parallel to the roller axis 13, and is constructed to bend elastically.

[0037] In addition Figure 4 It can be seen that the first thread 55 is located at the shaft 50, and the first spiral component 31 is screwed into the first thread.

[0038] Figure 5 A perspective view of the conveyor roller 40 is shown starting from the first end of the shaft. A groove 47 extending parallel to the roller axis 13 can be seen, which mates with a hook 45. The groove 47 causes rotational engagement between the first drive wheel 43 and the conveyor roller 40. In addition to the hook at the first drive wheel, another shape-locking device 46 is provided at the conveyor roller 40, and a mating shape-locking device at the first drive wheel is shape-locked into this other shape-locking device. The four shape-locking devices 46 are each constructed as grooves on their end sides, extending radially relative to the roller axis 13.

[0039] Figure 6 A perspective view of a basin-shaped substrate 60 is shown. The one-piece substrate 60 is manufactured, for example, from aluminum or zinc by die casting. The substrate 60 forms roller recesses 65, which are spaced apart and adapted to the conveyor rollers 40. The substrate 60 has a total of four second threads 66 on its upper side, which are arranged in the corners of an imaginary rectangle. The flat surfaces surrounding the second threads 66 are in a common plane, with corresponding mating surfaces arranged at the cover body 80.

[0040] The shape of the base 60 is designed in such a way that it can be manufactured using a two-piece casting mold that opens perpendicular to the conveying plane, requiring very few shape sliding elements. Correspondingly, the first support recess 63 and the second support recess 64 are constructed to open upwards, so that they only support the downward-acting gravity on the shaft. The first support recess 63 and the second support recess 64 each have two parallel, opposing sidewalls, oriented perpendicular to the conveying plane and parallel to the roller axis 13. These sidewalls are respectively aligned with the wrench face (attached to the shaft) Figure 2 Number 53 in the text is compatible in the sense of torsional stop.

[0041] In the region of the first sidewall 61, the base 60 has a drive through-hole 74 through which a first drive wheel 43 passes, allowing the first drive wheel to engage with a second drive wheel 72. All other through-holes and recesses in the base 60 are primarily for material conservation. They are arranged and sized such that the basin-shaped reinforcement is retained to the greatest extent possible.

[0042] Substrate 60 and cover ( Figure 3 Number 80 in the text is preferably used in conjunction with the conveyor rollers ( Figure 3 The components (number 40) are matched to ensure that all gaps are less than 5mm, and the object can be pulled into the gaps due to the rotation of the conveyor rollers.

[0043] List of reference numerals 10 Roller Conveyors 11 Conveying direction 12 drive shafts 13 Roller axis 14 Load-bearing profiles 15. Post-cut groove 16 Connecting support rod 17 Cover 20 drive shafts 21 Auxiliary axis 22 drive motors 30 Roller Module 31 First spiral component 32 Second spiral component 33 Third spiral component 40 Conveyor Rollers 41 First Rotary Bearing 42 Second Rotary Bearing 43 First drive wheel 44 Weeks 45. Biting hook 46 Shape-locking devices 47 Groove 50 axis 51 First end 52 Second end 53 Wrench face 54. Retaining ring 55 First Thread 60 matrix 61 First sidewall 62 Second sidewall 63 First support notch 64 Second support notch 65 Roller dent 66 Second Thread 67 Drive port 70 Supporting Entities 71 Auxiliary body for drive device 72 Second drive wheel 73 Third Rotary Bearing 74 Drive port 75 Oriented Profile 80 Covering body 81. Perforation 82 Fastening Profile 83 Lateral guide section 84. Depression

Claims

1. A roller module (30) for use in a roller conveyor (10), wherein, The roller module (30) is provided with the bearing profile (14) of the roller conveyor (10), the bearing profile extending parallel to the conveying direction (11), wherein the roller module (30) includes a conveying roller (40), the conveying roller being rotatably supported about the roller axis (13) by means of a first rotary bearing (41) and a second rotary bearing (42), wherein the conveying roller (40) is anti-rotatably connected to a first drive wheel (43), wherein the second drive wheel (72) is rotatably supported about the drive axis (12) parallel to the conveying direction (11) by a third rotary bearing (73). Rotatably supported, wherein the drive axis (12) is oriented perpendicular to the roller axis (13), wherein the first drive wheel and the second drive wheel (43; 72) are in a rotational drive connection, wherein the second drive wheel (72) is capable of entering the rotational drive connection with the drive shaft (20) of the roller conveyor (10) which is rotatable about the drive axis (12), wherein the conveying plane is oriented parallel to the drive axis (12) and the roller axis (13), wherein the conveying plane tangentially contacts the circumferential surface (44) of the conveying roller (40). The roller module (30) is characterized in that it includes an integral base (60) that can be directly fastened to the associated bearing profile (14), wherein the base (60) is constructed in a basin shape such that it forms a roller recess (65) that is open toward the conveying plane, wherein the drive assembly includes a shaft (50) that is concentrically arranged with respect to the roller axis (13), wherein the shaft has a first end (51) and an opposing second end (52) along the direction of the roller axis (13), wherein the shaft spans the roller recess (65) such that it is supported perpendicularly to the conveying plane at the first end (51) and at the second end (52) respectively, on the base (60), wherein the conveying roller (40) surrounds the shaft (50) in an annular shape such that the conveying roller extends in sections to the roller. Inside the recess (65), the first rotary bearing (41) and the second rotary bearing (42) are arranged within the conveyor roller (40), wherein the first rotary bearing and the second rotary bearing are received there on the shaft (50), wherein the first drive wheel surrounds the shaft (50) in an annular shape, wherein the first drive wheel extends in sections into the roller recess (65), wherein the first drive wheel is directly and firmly connected to the associated conveyor roller (40), wherein the base (60) has a first sidewall (61) in the region of the first end (51) of the shaft (50), the first sidewall being oriented transversely to the roller axis (13), wherein the second drive wheel is constructed such that the drive shaft (20) is arranged outside the base (60) spaced apart from the first sidewall (61) along the direction of the roller axis (13).

2. The roller module (30) according to claim 1, wherein, The roller module (30) includes an integral auxiliary body (70) that directly contacts the base (60) and is oriented relative to the base (60). The auxiliary body (70) can be directly fastened to a load-bearing profile (14) associated with the base (60), wherein an associated third rotary bearing (73) is received in the auxiliary body (70).

3. The roller module (30) according to any one of the preceding claims, wherein, The shaft (50) is held at the base (60) only at its first end (51) along the direction of the roller axis (13).

4. The roller module (30) according to claim 3, wherein, The shaft (50) is provided with a first helical member (31) concentric with the roller axis (13). The first helical member is screwed into the shaft (50) at the first end (51) on the end side. The first helical member penetrates the base (60). A first support recess (63) is provided in the base (60) adjacent to the helical member (31). The shaft (50) is shaped to fit into the first support recess, so that the shaft is supported perpendicular to the conveying plane.

5. The roller module (30) according to any one of the preceding claims, wherein, The shaft (50) is provided with a pair of wrench faces (53) at the first end (51) and / or at the second end (52), the wrench faces being fitted into a matching first support recess (63) or second support recess (64) in the base (60), such that the shaft (50) is fixed about the roller axis (13) to resist torsion.

6. The roller module (30) according to any one of the preceding claims, wherein, The first drive wheel (43) has at least two bite hooks (45) that extend along the direction of the roller axis (13) and that directly engage with the conveyor roller (40).

7. The roller module (30) according to claim 6, wherein, In addition to the form-locking engagement between the bite hook (45) and the conveying roller (40), an additional form-locking device (46) is provided, which causes the form-locking transmission of torque between the first drive wheel and the conveying roller (40).

8. The roller module (30) according to any one of the preceding claims, wherein, A separate, integrated cover (80) is provided, which is securely connected to the base (60) such that the cover partially covers the roller recess (65), wherein the conveying roller (40) passes through the through-hole (81) in the cover (80) such that the conveying plane is arranged spaced apart from the cover (80), wherein the first drive wheel is arranged beside the cover (80) along the direction of the roller axis (13).

9. The roller module (30) according to any one of the preceding claims, wherein, The conveying roller (40) is integrally constructed, wherein the conveying roller is made of plastic or metal.

10. The roller module (30) according to any one of claims 1 to 8, wherein, The conveying roller (40) has a sleeve-shaped cover made of metal, the cover forming a circumferential surface (44), wherein a core made of plastic is arranged inside the cover, and the first rotary bearing (41) and the second rotary bearing (42) are fastened to the core.

11. A roller conveyor (10) having at least two load-bearing profiles (14) extending parallel to the conveying direction (11), wherein, The load-bearing profiles are securely connected to each other, wherein a plurality of roller modules (30) are fastened at each load-bearing profile (14), the roller modules being constructed according to any one of the preceding claims, wherein all roller axes (13) are parallel to each other and wherein the drive axes (12) associated with the load-bearing profiles (14) coincide.

12. The roller conveyor (10) according to claim 11, wherein, Each load-bearing profile (14) is provided with a drive shaft (20) in which all roller modules (30) of the associated load-bearing profile (14) are in drive connection, wherein at least one auxiliary shaft (21) is provided, and two adjacent drive shafts (20) are in rotation drive connection through the auxiliary shaft, wherein the auxiliary shaft (21) is oriented parallel to the roller axis (13), wherein the mentioned rotation drive connection is implemented next to the roller module (30).

13. The roller conveyor (10) according to any one of claims 11 or 12, wherein, with respect to claim 8, At least one carrier profile (14) is provided with a lateral guide (83) extending parallel to the conveying direction (11), wherein the lateral guide (83) is fastened only to a cover (80) belonging to the carrier profile (14), wherein the lateral guide is fastened to a plurality of covers (80).

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