DE102017011911A1 - Drive roller for a pallet conveyor - Google Patents

Abstract

Drive roller (1) for a pallet conveyor for transporting transport goods such as containers or pallets, wherein the drive roller (1) is drivable by means of a chain drive system, comprising a roller body (3) having at one end at least one recess (5) with an extension (7 ) in an axial direction (Ax) and an extension (9) in a circumferential direction (Um) and an extension (11) in a radial direction (Ra) or an extension (12) in a secant direction (Se) of the reel body (3) and a sprocket (13) disposed at one end of the reel body (3) and having at least one land (15) for preventing the sprocket (13) from rotating relative to the reel body (3) in the recess (5) ) of the reel body (3) is received.

Description

The invention relates to a drive roller for a pallet conveyor for transporting transport goods such as containers or pallets, wherein the drive roller is driven by means of a chain drive system.

The drive roller of this kind is used, in particular, for transporting goods such as containers or pallets by means of a pallet conveyor. Several rollers are aligned transversely to the transport direction arranged one behind the other, some or all of which are designed as drive rollers. The drive rollers are usually driven by a tangential chain drive system or a double chain drive system. In the tangential chain drive system, all drive rollers are driven by a single drive chain, wherein a driving force of a drive motor is transmitted from the drive chain to a provided on the respective drive roller sprocket with einreihigem sprocket. In the double-chain drive system, a double sprocket with a double-row sprocket is provided on the respective drive roller, and two, mostly adjacent, drive rollers are connected by means of sprockets for transmitting the drive force. The respective sprockets are usually attached by welding to the drive rollers, which is a time and cost intensive manufacturing method.

Against this background, it is an object of the present invention to provide an improved drive roller, which reduces in particular the time and / or financial production costs.

The object is solved by the subject matters of the independent claims.

One aspect relates to a drive roller for a pallet conveyor for transporting transport goods such as containers or pallets, wherein the drive roller is driven by a chain drive system, comprising a roller body having at one end at least one recess with an extension in an axial direction and an extension in a circumferential direction and an extension in a radial direction or extension in a secant direction of the reel body, and a sprocket disposed at the one end of the reel body and having at least one land for securing the sprocket against rotation relative to the reel body in the recess of the reel body is included.

The roller body of transport rollers, in particular drive rollers, may be substantially cylindrical, for example, at least partially or completely as a hollow cylinder. Alternatively or additionally, the roller body may be formed as a solid cylinder, at least in the region of the sprocket. The reel body may be rotatably supported about a roller axis. A support portion of the roller axis may project beyond the roller body at its respective end, wherein the roller body may be accommodated by means of the support portions, in particular in a frame of the pallet conveyor.

The recess may, in particular in the case of a roller body formed at least partially as a solid cylinder, be designed as a recess or a recess or an opening on the roller body and may extend inwards starting from a surface of the roller body. In particular, at least partially designed as a solid cylinder roller body, the recess may be formed as a blind hole with additional open side.

The axial direction is a direction in an extension of a length of a component. In the case of, for example, a cylinder-shaped roller body, the axial direction is aligned approximately parallel to a surface line or the longitudinal axis of the roller body. In a sprocket, the axial direction is oriented in the direction of extension of the thickness of the sprocket for lack of a length of the sprocket.

The radial direction is aligned perpendicular to the axial direction. For example, in a cylinder-shaped roller body or a sprocket, the radial direction coincides with the radius of the roller body or sprocket. In a hollow cylinder-shaped roller body, the radial direction extends in the direction of the wall thickness of the roller body.

A secant direction is oriented perpendicular to the axial direction in the direction of a secant. In the case of a cylinder-shaped roller body, for example, which has a circular cross-sectional area cut transversely to the axial direction, the respective secant direction runs in the direction of a chord.

The circumferential direction is a direction in an extension of the circumference of the component. For example, in a cylinder-shaped roller body or a sprocket, the circumferential direction is aligned in the direction of the circumference of the roller body or the sprocket.

For the purposes of the present invention, the terms "outside" or "inside" and the like used here mean that a center, in particular an idealized or imaginary center, is an innermost point. A related outer area is one, in particular idealized or imaginary, peripheral area. A point or region, which is referred to as lying further out than another point or region, is thus located in the radial direction from the center further in the direction of the peripheral region than the other point or region.

An advantage of the present invention is a simplified manufacture of the drive roller without welding. Thus, in the manufacture of the improved drive roller time and / or cost can be saved. For example, a weldable design, restrictions on the choice of usable materials, complex preparatory work and last but not least a skill and skill requiring welding process itself and / or expensive welding robots can be omitted.

Advantageously, the web can be received positively in the recess. Thus, the sprocket is effectively secured against twisting relative to the reel body in the circumferential direction thereof.

Alternatively or additionally, the web can be received non-positively in the recess. Thus, a moving out of the web from the recess can be prevented because of an axially acting on the sprocket force. Such a move-out may be, for example, a so-called "wandering" of the sprocket caused, for example, by an axially outward force transmitted from the drive chain to the sprocket. Another example of an axial force on the sprocket, which can cause the web to move out of the recess, is the gravitational effect on the sprocket in the event of a non-horizontal position of the drive roller.

The recess may have a greater extent in the axial direction than in the circumferential direction and / or the radial direction or the secant direction of the roller body. For example, the recess may be formed as an end-side recess in the one end of the reel body which extends in the axial direction of the reel body. In particular, in this case, the web may be formed approximately perpendicularly from the sprocket, that is, in the axial direction, projecting.

Alternatively, the recess may have a greater extent in the radial direction or the secant direction than in the axial direction and / or the circumferential direction of the reel body. For example, the recess may extend in the direction of a radius or a chord.

Further alternatively, the recess may have a greater extent in the circumferential direction than in the axial direction and / or the radial direction or the secant direction of the roller body.

In particular, the recess, for example, in a case of at least partially designed as a solid cylinder roller body, be formed continuously.

Alternatively, the recess, in particular in the radial direction or secant direction of the roller body, be formed interrupted. In other words, in each case two, in particular in the radial direction or secant direction of the roller body, mutually opposing recesses may be formed.

Advantageously, exactly one or more recesses may be provided. In particular with a plurality of recesses and webs, a surface pressure at a respective contact surface between the web and the recess can be reduced.

A plurality of recesses may each be spaced parallel to each other, or a centerline of the respective recess may be formed coincident with a radius of the reel body.

Alternatively or additionally, a plurality of recesses may each be formed obliquely to one another.

In particular, a plurality of recesses may be uniformly distributed in the circumferential direction of the reel body.

Alternatively or additionally, a plurality of recesses may be formed unevenly distributed in the circumferential direction of the roller body.

Advantageously, the recess may be formed as a notch. A notch is a recess having an open perimeter that begins and ends at a free edge of a component. In other words, a notch on at least one open end, which is formed opposite to a closed end. An advantage of the recess formed as a notch is that the sprocket can be pushed in a simple manner from the outside onto the reel body, wherein the one or more webs of the sprocket engage in the corresponding (s) notch (s). Thus, a positive connection of sprocket and roller body can be produced in a very simple and effective way in one operation. In addition, with the notch, a limitation for the movement of the sprocket inwardly in the axial direction of the roller body created, almost in the manner of a stop.

In particular, recesses may be formed in any combination of the above-mentioned differently dimensioned extensions, different configurations and / or different arrangements.

In particular, a number of recesses may correspond to a number of webs.

Advantageously, any number of recesses and / or webs may be provided, wherein the number is greater than or equal to 1.

The web may have a greater extent in the axial direction than in the circumferential direction and / or the radial direction or the secant direction of the sprocket. For example, the web may be formed approximately perpendicularly from the sprocket, so in the axial direction, projecting. In particular, the recess may - as mentioned above - be formed as an end-side recess in the one end of the roller body, which extends approximately perpendicular to the radial direction of the roller body in the axial direction of the roller body.

Alternatively, the ridge may have a greater extent in the radial direction or the secant direction than in the axial direction and / or the circumferential direction of the sprocket. For example, the bridge can run in the direction of a radius or a chord.

Further alternatively, the web may have a greater extent in the circumferential direction than in the axial direction and / or the radial direction or the secant direction of the sprocket.

The web can be formed in a plane with the sprocket, that is, in the radial direction or secant direction, or - as already mentioned above - approximately perpendicularly from the sprocket, that is in the axial direction, projecting.

In particular, the web, for example, in an at least partially designed as a solid cylinder roller body, be formed continuously, in particular bridging an inner diameter of the sprocket. In this case, the continuously formed web can advantageously have a recess for a roller axle, which projects outwardly from the roller body.

Alternatively, the web, in particular in the radial direction or secant direction of the sprocket, be formed interrupted. In other words, in each case two, in particular in the radial direction or secant direction of the sprocket, webs arranged opposite one another can be formed.

Advantageously, exactly one or more webs can be provided. In particular with multiple webs and recesses, a surface pressure at a respective contact surface between the web and the recess can be reduced.

A plurality of webs may each be spaced parallel to each other or a center line of the respective web may be formed coincident with a radius of the sprocket.

Alternatively or additionally, a plurality of webs may each be formed at an angle to each other.

In particular, a plurality of webs may be formed uniformly distributed in the circumferential direction of the sprocket.

Alternatively or additionally, a plurality of webs may be formed unevenly distributed in the circumferential direction of the sprocket.

In particular, a plurality of webs in a region of the inner diameter of the sprocket may be formed interconnected, for example by means of a, advantageously concentric, connecting web.

In particular, webs may be formed in any combination of the above-mentioned differently dimensioned extensions, different configurations and / or different arrangements.

Advantageously, a roller base for axial attachment of the sprocket can be arranged at one end of the roller body. Thus, the above-mentioned moving out of the sprocket from the recess - for example, the so-called "hiking" or due to gravity on the sprocket in non-horizontal position of the drive roller - can be prevented.

At another end of the reel body, a second roll bottom may be provided.

The roll bottom and / or the second roll bottom can / can be pressed into the respective end of the roll body.

The roller base can be pressed into the roller body in such a way that there is a frictional connection between the at least one web and the roller base.

Alternatively or additionally, the roll base and / or the second roll base can be pressed onto the roll body at least partially or completely wraparound. Thus, can For example, in a reel body with multiple notches a "fraying" or bending of the reel body can be prevented. In particular, an exclusive or additional non-positive connection between the sprocket and the roller base can thus be provided on the outside of the roller body at least in sections.

Alternatively or additionally, the roller base and / or the second roller base may be fastened to the roller body by means of a roller axle of the drive roller.

In particular, the sprocket may be clamped between the roller base and the roller body in the axial direction of the roller body. For example, the roll base and / or the second roll base can be configured as a disk or a cylinder. The roller base can be pushed onto the roller axle and pressed against the sprocket in the axial direction by means of a nut which engages in a thread on the roller axle. This can further contribute to preventing the above-mentioned moving out of the sprocket from the web by means of the described, in particular additional, frictional attachment of the sprocket.

Alternatively or additionally, the roller base can have a greater extent in the axial direction outside a clamping region of the roller base than in the clamping region. The clamping area is an area which is covered by one or more of the webs of the sprocket, when the roller base is attached to the roller body and thus at least one of the webs of the sprocket between the roller base and roller body is clamped. Advantageously, the greater axial extent of the roller base can run in the interior of the roller body. Thus, a clamping length of the roller base in the roller body can be increased and the risk of unintentional moving out of the roller base from the roller body can be reduced or avoided.

The roller base and / or the second roller floor can / may have a recess for the roller axle which protrudes out of the roller body through the respective roller floor.

The roller axle can be designed to run continuously through the roller body or as axle stubs mounted on both sides of the roller body.

The inner diameter of the sprocket may be equal to or slightly larger than an outer diameter of the reel body. Thus, the sprocket pushed onto the reel body has a slight clearance in the radial direction of the reel body, such as a positive fit. The limit dimensions for the positive fit are selectable in the radial direction of the reel body according to usual considerations such as ease of assembly and maximum allowable clearance between sprocket and reel body.

The reel body may be formed as a seamless drawn or welded and galvanized steel pipe.

Advantageously, the roller body can be surface-coated at least in a region of the contact surfaces between the recess of the roller body and the web of the sprocket or have a reinforcement. Thus, excessive wear due to the surface pressure generated at the contact surfaces is avoidable.

Alternatively or additionally, the web may be wider than the sprocket, i. An extension of the web can be greater in the axial direction than an extension of the sprocket in the axial direction. In this case, the width of the web can be as wide as the extent of the recess in the axial direction, of which the web is received. By means of a surface enlargement thus achieved between the contact surfaces, a surface pressure arising therefrom can be reduced.

In particular, the sprocket seen in the axial direction can be arranged centrally with respect to the web.

Alternatively, as viewed in the axial direction, the sprocket may be located off-center with respect to the land.

The reinforcement may be formed as an increased wall thickness of the hollow cylinder in a designed as a hollow cylinder roller body.

In particular, the reinforcement may be formed such that the roller body may be formed as a solid cylinder at least at one end, in which the recess is formed.

The sprocket can be made by punching or milling.

In particular, the sprocket may be formed from a, in particular surface-coated, steel.

The chain drive system may be formed as a tangential chain drive or as a double chain drive. For example, the sprocket can be made with a single row sprocket for the tangential chain drive by punching. Alternatively, the sprocket for the Double chain drive with a double row sprocket be made by milling.

One aspect of the invention relates to a method for providing a drive roller for a pallet conveyor for transporting transport goods such as containers or pallets, the drive roller being drivable by means of a chain drive system, comprising the steps of providing a roller body having at one end at least one recess with an extension in an axial direction and an extension in a circumferential direction and an extension in a radial direction or extension in a secant direction of the reel body, and providing a sprocket which is disposed at the one end of the reel body and provided with at least one land for securing the sprocket is received against rotation relative to the reel body in the recess of the reel body.

The advantages of the method for providing the drive roller arise analogously from the features mentioned above to the drive roller and their advantages.

Advantageously, a roller base for axial attachment of the sprocket is arranged at one end of the roller body. Thus, the above-mentioned moving out of the sprocket from the recess - for example, the so-called "hiking" or caused by gravity on the sprocket in non-horizontal position of the drive roller moving out - can be prevented.

The roll bottom can be pressed into one end of the reel body. In particular, the roller base can be pressed into the roller body such that a frictional connection is produced between at least one web and roller base.

Alternatively or additionally, the roll base can be pressed onto the roll body at least partially or completely wraparound. Thus, at least in sections, an exclusive or additional frictional connection between the sprocket and the roller base can be produced on the outside of the roller body. In particular, in a reel body with multiple notches so "fraying" or bending of the reel body can be prevented.

Alternatively or additionally, the roller base can be fastened by means of a roller axle of the drive roller.

Embodiments of the drive roller according to the invention are explained in more detail with reference to drawings. Show it:

• 1 a plan view of a roller body for a drive roller according to a first embodiment,
• 2 a front view of the in 1 shown roll body,
• 3 a front view of a sprocket for the in 1 shown roll body,
• 4 a front view of a cross section of the drive roller according to the first embodiment,
• 5 a spatial plan view of the drive roller according to the first embodiment,
• 6 a top view of a longitudinal section of the drive roller according to the first embodiment,
• 7 a plan view of a roller body for a drive roller according to a second embodiment,
• 8th a front view of the in 7 shown roll body,
• 9 a front view of a sprocket for the in 7 shown roll body,
• 10 a front view of a cross section of the drive roller according to the second embodiment,
• 11 a spatial plan view of the drive roller according to the second embodiment,
• 12 a plan view of a longitudinal section of the drive roller according to the second embodiment,
• 13 a plan view of a roller body for a drive roller according to a third embodiment,
• 14 a front view of the in 13 shown roll body,
• 15 a front view of a sprocket for the in 13 shown roll body,
• 16 a front view of a cross section of the drive roller according to the third embodiment
• 17 a spatial plan view of the drive roller according to the third embodiment and
• 18 a plan view of a longitudinal section of the drive roller according to the third embodiment.

1 shows a reel body 3 for a drive roller 1 according to a first embodiment in a plan view. An extension of the reel body 3 in its axial direction Ax is shown shortened for reasons of space.

The reel body 3 can be designed as a hollow cylinder. At one end of the reel body 3 are two recesses 5 visible, which may be formed in the form of notches. The respective notch can in the axial direction Ax have a closed end and an open end opposite the closed end.

An extension 7 the respective recess 5 in the axial direction Ax of the reel body 3 can be larger than an extension 9 the respective recess 5 in a circumferential direction Around of the reel body 3 ,

The axial direction Ax , the circumferential direction Around , the radial direction Ra and the secant direction se are shown in the figures by means of directional arrows, in particular in the manner of a coordinate system. Although the direction arrows each show only in one direction, the direction is also a respective opposite direction included. By way of example, two radial directions are indicated in each case; This is merely an impression of the many possible radial directions Ra mediated. In the respective plan view, the circumferential direction falls Around with one of the radial directions Ra together and is not shown separately. Similarly, in the respective plan view, the secant direction se with one of the radial directions Ra together and is not shown separately. A dimension in the circumferential direction is indicated in simplified form in the figures as a measure projected onto a plane.

2 shows a front view of the in 1 shown roller body 3 , Because the reel body 3 in 2 is designed as a hollow cylinder, in this embodiment, four recesses 5 provided, of which two in each secant direction se are formed opposite each other. Alternatively, for example, in a trained at least in the region of the recesses as a solid cylinder roller body 3 with the same result two recesses 5 be provided, respectively in secant direction se are formed interrupted.

As in 2 shown, the respective recess 5 be aligned in the direction of a chord, in a sense parallel to the radius of the hollow cylindrical roller body 3 be educated. An extension 9 the recess 5 in the circumferential direction Around of the reel body 3 can be larger than an extension 12 the recess 5 in the secant direction se of the reel body 3 ,

Alternatively, a centerline 6 the respective recess 5 with the radius of the reel body 3 be formed coincidentally. Analogous to the illustrated embodiment can then be an extension 9 the recess 5 in the circumferential direction Around of the reel body 3 be larger than a (not shown here) extension of the recess 5 in the radial direction Ra of the reel body 3 ,

3 shows a front view of a sprocket 13 for the in 1 and 2 shown roller body 3 , The sprocket 13 may have a single row sprocket. Alternatively, the sprocket 13 be designed as Doppelkettenrad and have a double row sprocket.

According to the in 1 and 2 shown recesses 5 of the reel body 3 can the sprocket 13 for this reel body 3 two bridges 15 each, in the secant direction se of the sprocket 13 can be trained, oriented in a sense towards a chord. The bridges 15 can be formed parallel to each other spaced.

Next, the webs 15 be formed continuously. Alternatively, the webs 15 in secant direction se be formed interrupted. It can centerlines 16 of the bridges 15 in the radial direction of the sprocket 13 be aligned. An extension 12a of the respective bridge 15 in secant direction se can be larger than an extension 9a of the respective bridge 15 in the circumferential direction Around ,

4 shows a cross section of the drive roller 1 according to the first embodiment in a front view, wherein the section through the sprocket 13 runs.

The bridges 15 of the sprocket 13 can form fit in the recesses 5 of the reel body 3 be included. A relative movement of the sprocket 13 to the reel body 3 in the circumferential direction Around can thus be prevented and one on the sprocket 13 acting driving force on the roller body 3 be transmitted.

In a spatial plan view of the drive roller 1 in 5 is the spatial position of the sprocket 13 to the reel body 3 shown. The sprocket 13 can in a sense until the stop of his webs 15 at the closed ends of the recesses 5 on the reel body 3 be pushed.

An extension 7a of the respective bridge 15 in the axial direction Ax can be larger than an extension 11a of the respective bridge 15 in the radial direction Ra ,

6 shows a longitudinal section of the drive roller 1 according to the first embodiment in a plan view, wherein the section along the median plane of the drive roller 1 runs. An extension of the reel body 3 in its axial direction Ax is shown shortened for reasons of space.

A roll floor 17 can be used to axially fix the position of the sprocket 13 on the reel body 3 at one end of the reel body 3 be provided. The roll bottom 17 For example, in one end of the reel body 3 be pressed. Alternatively or additionally, the roll bottom 17 on the reel body 3 be pressed at least partially or completely embracing.

In particular, the roll bottom 17 in a clamping region of the roller base 17 with which the webs 15 and thus the sprocket 13 between the roll bottom 17 and the reel body 3 is clamped, one inside the reel body 3 extending greater extent in the axial direction than outside the clamping area.

The roll bottom 17 can advantageously a recess 19 for a roller axle (not shown) passing through the roller base 17 outward from the reel body 3 protrudes.

At another end of the reel body 3 can be a second roll bottom 21 be provided. The second roll floor 21 can into the other end of the reel body 3 be pressed. Alternatively or additionally, the second roll tray 21 at least partially or completely embracing on the reel body 3 be pressed on. Similar to the roll bottom 17 can also be the second roll bottom 21 a recess 19 for a roller axle (not shown) passing through the roller base 21 outward from the reel body 3 protrudes.

7 shows a reel body 3 for a drive roller 1 according to a second embodiment in plan view. In the following, mainly the differences from the first embodiment will be described.

At one end of the reel body 3 is a single recess 5 visible, which can be designed in the form of a notch. The notch can be in the axial direction Ax have a closed end and an open end opposite the closed end.

An extension 9 the recess 5 in the circumferential direction Around of the reel body 3 can be larger than an extension 7 the recess 5 in the axial direction Ax of the reel body 3 ,

As in 8th can be in the case of this embodiment designed as a hollow cylinder roller body 3 two recesses 5 in the radial direction Ra be formed opposite each other. Alternatively, for example, in a trained at least in the region of the recesses as a solid cylinder roller body 3 with the same result a single recess 5 be provided, which in a sense in the radial direction Ra is formed interrupted.

The centerlines 6 the recesses 5 can match the radius of the reel body 3 be formed coincidentally.

An extension 9 the recess 5 in the circumferential direction Around of the reel body 3 can be larger than an extension 11 the recess 5 in the radial direction Ra of the reel body 3 ,

9 shows a front view of a sprocket 13 for the in 7 and 8th shown roller body 3 ,

According to the in 7 and 8th shown recesses 5 of the reel body 3 can the sprocket 13 for this reel body 3 two bridges 15 respectively. The bridges 15 can each other in the radial direction Ra be formed opposite. Next can centerlines 16 of the bridges 15 each in the radial direction Ra of the sprocket 13 aligned and the respective center line 16 the webs with the radius of the reel body 3 be formed coincidentally.

Alternatively, a single bridge 15 be provided, in the radial direction Ra is formed throughout. In this case, the bridge 15 Advantageously, a recess for the roller axle (not shown), which outwardly from the roller body 3 protrudes.

An extension 9a of the bridges 15 in the circumferential direction Around of the sprocket 13 can be larger than an extension 11a of the bridges 15 in the radial direction Ra of the sprocket 13 ,

10 shows a front view of a cross section of the drive roller 1 according to the second embodiment, wherein the section through the sprocket 13 runs.

Similar to the first embodiment described above, the webs 15 of the sprocket 13 positively in the recesses 5 of the reel body 3 be included. Thus, one on the sprocket 13 acting driving force on the roller body 3 be transmitted.

An extension 9a of the respective bridge 15 in the circumferential direction Around can be larger than an extension 11a of the respective bridge 15 in the radial direction Ra ,

In 11 is the spatial position of the sprocket 13 to the reel body 3 in a spatial plan view of the drive roller 1 shown.

Similar to the first embodiment described above, the sprocket 13 in a sense, until the stop of his webs 15 at the closed ends of the recesses 5 on the reel body 3 be pushed. A (not shown) roller base can be used for axially fixing the position of the sprocket 13 on the reel body 3 at one end of the reel body 3 be provided. The roll bottom, for example, in the one end of the reel body 3 be pressed. Alternatively or additionally, the roller bed can be placed on the roller body 3 be pressed at least partially or completely embracing. The roller base may advantageously have a recess for a roller axle (not shown) passing through the roller floor outwardly from the roller body 3 protrudes.

An extension 9a of the respective bridge 15 in the circumferential direction Around can be larger than an extension 7a of the respective bridge 15 in the axial direction Ax ,

12 shows a longitudinal section of the drive roller 1 according to the second embodiment in a plan view. The cut runs along the median plane of the drive roller 1 , For reasons of space, an extension of the roller body 3 in its axial direction Ax shown shortened.

Similar to the first embodiment described, can at the one end of the reel body 3 the roll ground 17 for axially fixing the position of the sprocket 13 on the reel body 3 be provided.

In particular, the roll bottom 17 in a clamping region of the roller base 17 with which the webs 15 and thus the sprocket 13 between the roll bottom 17 and the reel body 3 is clamped, one inside the reel body 3 extending greater extent in the axial direction than outside the clamping area.

At the other end of the reel body 3 can the second roll bottom 21 be provided. Both roll bottoms 17 . 21 For example, in the respective end of the reel body 3 be pressed. Alternatively or additionally, at least one of the two roll trays 17 . 21 on the reel body 3 be pressed at least partially or completely embracing. Both roll bottoms 17 . 21 can a recess 19 for a roller axle (not shown) passing through the respective roller base 17 . 21 outward from the reel body 3 protrudes.

13 shows a reel body 3 for a drive roller 1 according to a third embodiment in plan view. In the following, mainly the differences to the first and the second embodiment will be described.

On the reel body 3 can several, in particular five, recesses 5 at one end of the reel body 3 be formed in the form of a notch.

An extension 9 the respective recess 5 in the circumferential direction Around of the reel body 3 can be larger than an extension 7 in the axial direction Ax of the reel body 3 ,

As in 14 shown, the recesses can 5 in the circumferential direction Around be formed evenly distributed. Alternatively, the recesses 5 in the circumferential direction Around be formed unevenly distributed.

The centerlines 6 the recesses 5 can each have a radius of the reel body 3 be formed coincidentally.

An extension 9 the respective recess 5 in the circumferential direction Around of the reel body 3 can be larger than an extension 11 the respective recess 5 in the radial direction Ra of the reel body 3 ,

15 shows a front view of a sprocket 13 for the in 13 and 14 shown roller body 3 ,

According to the in 13 and 14 shown recesses 5 of the reel body 3 can the sprocket 13 for this reel body 3 several, in particular five, bars 15 respectively. The bridges 15 can be in the circumferential direction Around be formed evenly distributed. Alternatively, the webs 15 in the circumferential direction Around be formed unevenly distributed, in particular the distribution of the recesses 5 of the reel body 3 corresponding.

Next can the centerlines 16 of the bridges 15 each with a radius of the reel body 3 be formed coincidentally.

Alternatively or additionally, at least one of the webs 15 in the radial direction Ra be formed continuously. In this case, the one or the continuous webs 15 Advantageously, a recess for a (not shown) roll axis, which outwardly from the reel body 3 protrudes.

An extension 9a of the respective bridge 15 in the circumferential direction Around can be larger than an extension 11a of the respective bridge 15 in the radial direction Ra ,

16 shows a front view of a cross section of the drive roller 1 according to the third embodiment, wherein the section through the sprocket 13 runs.

Similar to the first or second embodiment described above, the webs 15 of the sprocket 13 positively in the recesses 5 of the reel body 3 be included. Thus, one on the sprocket 13 acting driving force on the roller body 3 be transmitted.

In 17 is the spatial position of the sprocket 13 to the reel body 3 in a spatial plan view of the drive roller 1 shown.

Similar to the embodiments described above, the sprocket 13 in a sense, until the stop of his webs 15 at the closed ends of the recesses 5 on the reel body 3 be pushed.

An extension 9a of the respective bridge 15 in the circumferential direction Around can be larger than an extension 7a of the respective bridge 15 in the axial direction Ax ,

18 shows a longitudinal section of the drive roller 1 according to the third embodiment in a plan view, wherein the section along the median plane of the drive roller 1 runs. An extension of the reel body 3 in its axial direction Ax is shown shortened for reasons of space.

Similarly as described for the first or second embodiment, for axially fixing the position of the sprocket 13 on the reel body 3 the roll ground 17 at one end of the reel body 3 be provided.

The second roll floor 21 can be at the other end of the reel body 3 be provided. For example, at least one of the two roll trays 17 . 21 in the respective end of the reel body 3 be pressed. Alternatively or additionally, at least one of the two roll trays 17 . 21 at least partially or completely embracing on the reel body 3 be pressed on. Both roll bottoms 17 . 21 can a recess 19 for a roller axle (not shown) passing through the respective roller base 17 . 21 outward from the reel body 3 protrudes.

In particular, the roll bottom 17 in a clamping region of the roller base 17 with which the webs 15 and thus the sprocket 13 between the roll bottom 17 and the reel body 3 is clamped, one inside the reel body 3 extending greater extent in the axial direction than outside the clamping area.

In summary, the recesses 5 and / or the webs 15 not only be designed as described above to the figures. Depending on the requirement and / or within the scope of design freedom, expressly any combination of the above-described differently dimensioned extensions, different configurations and / or different arrangements of the recesses 5 and / or webs 15 in conjunction with any number of recesses 5 and / or webs 15 greater than or equal to 1 possible.

LIST OF REFERENCE NUMBERS

1

capstan

3

roller body

5

recess

6

Centerline of the recess

7

Extension of the recess in the axial direction

7a

Extension of the web in the axial direction

9

Extension of the recess in the circumferential direction

9a

Extension of the web in the circumferential direction

11

Extension of the recess in the radial direction

11 a

Extension of the web in the radial direction

12

Extension of the recess in secant direction

12a

Extension of the bridge in secant direction

13

Sprocket

15

web

16

Centerline of the jetty

17

Bearing housing

19

recess

21

second roll floor

Ax

axially

Ra

radial direction

se

secant

Around

circumferentially

Claims (11)

Drive roller (1) for a pallet conveyor for transporting goods to be transported such as containers or pallets, wherein the drive roller (1) by means of a chain drive system is driven, with - A roller body (3) having at one end at least one recess (5) with an extension (7) in an axial direction (Ax) and an extension (9) in a circumferential direction (Um) and an extension (11) in a radial direction (Ra) or an extension (12) in a secant direction (Se) of the reel body (3) and - A sprocket (13) which is arranged at one end of the roller body (3) and at least one web (15) which serves to secure the sprocket (13) against rotation relative to the roller body (3) and in the Recess (5) of the reel body (3) is received. Drive roller (1) to Claim 1 , wherein the web (15) non-positively and / or positively received in the recess (5). Drive roller (1) to Claim 1 or 2 wherein the extent (7) of the recess (5) and / or the web (15) in the axial direction (Ax) is greater than the extent (9) of the recess (5) and / or the web (15) in the circumferential direction (Um) and / or the extension (11) of the recess (5) and / or the web (15) in the radial direction (Ra) or the extension (12) of the recess (5) and / or the web (15) in the secant direction (Se). Drive roller (1) according to one of Claims 1 or 2 wherein the extension (11) of the recess (5) and / or the web (15) in the radial direction (Ra) or the extension (12) of the recess (5) and / or the web (15) in the secant (Se ) is greater than the extent (7) of the recess (5) and / or the web (15) in the axial direction (Ax) and / or the extension (9) of the recess (5) and / or the web (15) in the circumferential direction (Um). Drive roller (1) according to one of Claims 1 or 2 wherein the extent (9) of the recess (5) and / or the web (15) in the circumferential direction (Um) is greater than the extension (7) of the recess (5) and / or the web (15) in the axial direction (Ax) and / or the extension (11) of the recess (5) and / or the web (15) in the radial direction (Ra) or the extension (12) of the recess (5) and / or the web (15) in the secant direction (Se). Drive roller (1) according to one of the preceding claims, wherein a plurality of recesses (5) and / or webs (15) are each formed approximately parallel to each other or opposite one another or wherein a plurality of recesses (5) and / or webs (15) evenly in the circumferential direction (Um) of the roller body (3) are distributed. Drive roller (1) according to one of the preceding claims, wherein the recess (5) and / or the web (15) is continuous or interrupted. Drive roller (1) according to one of the preceding claims, wherein the web (15) in a plane with the sprocket (13) or approximately perpendicularly from the sprocket (13) is formed projecting. Drive roller (1) according to one of the preceding claims, wherein the recess (5) is designed as a notch. Drive roller (1) according to one of the preceding claims, wherein a roller base (17) for axially fixing the sprocket (13) at one end of the roller body (3) is arranged. Method for providing a drive roller (1) for a pallet conveyor for transporting goods to be transported, such as containers or pallets, wherein the drive roller (1) can be driven by means of a chain drive system, comprising the steps: - Providing a roller body (3) having at one end with at least one recess (5) with an extension (7) in an axial direction (Ax) and an extension (9) in a circumferential direction (Um) and an extension (11) in a radial direction (Ra) or an extension (12) in a secant direction (Se) of the reel body (3) is provided, - Providing a sprocket (13) which is arranged at one end of the reel body (3) and provided with at least one web (15) for securing the sprocket (13) against rotation relative to the reel body (3) in the recess (5) of the reel body (3) is received.

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