DE102018004724A1 - conveyor roller - Google Patents

Abstract

A conveyor roller (1) for a conveyor device, in particular for conveying pallets and / or containers, with a roller body (8) and a drive head (4) which is inserted into a free end of the roller body (8) and which has a fastening piece (6), wherein the drive head (4) with its attachment piece (6) is fixed by means of a positive connection using a connecting body (2) on the roller body (8) in the axial direction (Ax) in a non-sliding manner and in the circumferential direction (Um), and wherein the roller body (8 ) are completely penetrated and the fastening piece (6) at least partially in the radial direction (Ra) by the connecting body (2) and the connecting body (2) can be inserted from the outside in the radial direction (Ra).

Description

The invention relates to a conveyor roller for a pallet conveyor for transporting goods such as pallets and / or containers.

The conveyor roller of this type is used, in particular, to transport goods such as pallets and / or containers by means of a conveyor device. Several conveyor rollers are arranged one behind the other transversely to the transport direction, some or all of which are designed as drive rollers. For example, when the conveyor roller is used in a belt conveyor, one of its end rollers is designed as a drive roller, with a conveyor belt wrapping around the drive roller and the other end roller. 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, a drive force of a drive motor being transmitted from the drive chain to a sprocket with a single-row sprocket provided at a free end of the respective drive roller. In the double chain drive system, a double chain wheel with a double-row sprocket is provided on the respective drive roller and two, usually adjacent, drive rollers are connected by means of chain circles for transmitting the drive force. The respective sprockets are usually attached to the drive rollers by welding, which is a time-consuming and costly manufacturing method. In the case of non-driven conveyor rollers, so-called rollers, a roller base is provided at each of its two free ends, which receives a bearing for supporting a roller axis. In the case of the drive roller or rollers, a roller base is usually provided on the other free end opposite the chain wheel.

Against this background, it is an object of the present invention to provide an improved conveyor roller and a method for providing the improved conveyor roller, which in particular reduces the time and / or financial expenditure involved.

The object is achieved by the subject matter of the respective independent patent claims.

One aspect relates to a conveying roller for a conveying device, in particular for conveying pallets and / or containers, with a roller body and a drive head which is inserted into a free end of the roller body and has a fastening socket. The drive head is fastened with its fastening socket by means of a non-positive or positive connection using a, in particular separately formed, connecting body to the roller body in the axial direction and non-rotatably in the circumferential direction. The roller body and the attachment piece are at least partially completely penetrated in the radial direction by the connecting body and the connecting body can be inserted from the outside in the radial direction.

An advantage of the present invention is a simplified production of the conveyor roller without complex welding work, which in turn would require time-consuming and therefore cost-intensive constructional and production-related preparatory and follow-up measures.

Another advantage of the present invention is that with the configuration according to the invention, a form-fitting attachment of the drive head to the roller body is achieved in a simple manner.

A positive connection or fastening often also has a force-locking component, for example by tightening a screw or shrinking after hot riveting; In the context of the present invention, however, the proportion of adhesion is neglected when one speaks of positive locking.

A conveying device in the sense of the present invention can be, for example, a pallet conveyor or a belt conveyor.

A roller body can be designed, for example, as a hollow cylindrical tube, which can also be referred to as a roller jacket.

A roller base can in particular be used to close the roller body at the free end opposite the drive head. The roller base can be essentially cylindrical.

A drive head can be designed as a sprocket head or as a double sprocket head.

The terms “outside” or “inside” and the like used in the following mean in the sense of the present invention that a, in particular idealized or imagined, center is an innermost point. An outer area in relation to this is an, in particular idealized or imagined, peripheral area. A point or area which is designated as being further outwards than another point or area is therefore located further away in the radial direction from the center point in the direction of the peripheral area than the other point or area.

An axial direction or an axial direction is a direction in an extension of a length of a component. For example, one hollow cylindrical roller body, the axial direction is aligned approximately parallel to a surface line or the longitudinal axis of the roller body.

A radial direction or radial direction is oriented perpendicular to the axial direction. For example, in the case of a hollow cylindrical roller body, the radial direction coincides with the radius of the roller body. In other words, the radial direction of the hollow cylindrical roller body runs in the direction of its wall thickness.

Accordingly, a circumferential direction is a direction in an extent of the circumference of the component.

The connecting body is preferably designed as a rivet, a pin and / or as a screw.

The connecting body can preferably be designed as a blind rivet. With this configuration, a reliable fastening of the fastening socket of the drive head is realized in a simple manner.

As an alternative or in addition thereto, the connecting body can advantageously be designed as a dowel pin or notch pin.

A head or collar of the connecting body is preferably completely accommodated in an end section of a receptacle for the connecting body, the end section being formed on the outside in the radial direction. For example, the end section of the receptacle can be designed as a countersink or stepped bore. With this configuration, a smooth surface of the roller body is ensured, in particular when the conveyor roller is used in a belt conveyor, and the belt is thus protected from damage.

For example, the material of the roller body can at least partially contain steel, plastic, aluminum and / or other plastically deformable materials. The general term aluminum includes, in particular high-strength, aluminum alloys.

Several positive connections are preferably provided. With this configuration, a torsional strength of the fastening of the fastening piece with the roller body can be increased. This also increases the sliding resistance of the fastening of the fastening piece to the roller body.

The one or more receptacles for the connecting body or the connecting bodies can be inserted into the fastening socket and into the roller body if the fastening socket is inserted into the roller body or if the fastening socket is separated from the roller body.

In particular, the form-fitting connections can be made uniformly distributed in the circumferential direction.

Alternatively, the form-fitting connections can be designed to be unevenly distributed in the circumferential direction. Depending on the application and / or constructional or other requirements, an adaptable fastening of the fastening piece to the roller body is thus realized.

A roller base is preferably arranged at another free end of the roller body.

More preferably, the roller base is designed with an attachment socket which is identical to the drive head and is attached to the other free end of the roller body in an identical manner to the drive head. With this configuration, the manufacture of a roller (non-driven conveyor roller) with the above-mentioned advantages is easily realized.

A chain wheel or a belt pulley or a bead (annular circumferential groove for receiving a round belt) is preferably formed in one piece with the drive head. With this configuration, a drive roller with the advantages mentioned above is realized in a simple manner. Furthermore, a torsional resistance of the chain wheel in relation to the drive head is thus realized in a simple manner. In addition, storage is simplified by means of the reduced number of parts.

The drive head with the integral sprocket can be formed without cutting, for example cast, 3-D printed or formed, machined, for example from the full milled / turned or manufactured using "rapid manufacturing". As an alternative to this, a drive head that is initially manufactured separately can be glued or riveted to a chain wheel that is initially manufactured separately and can thus be formed in one piece. One or more interlocking projections and recesses can be provided on both parts to ensure the rotationally fixed fastening of the two parts in the assembled state.

Alternatively, a chain wheel is preferably detachably attached to the drive head. With this configuration, the sprocket can be replaced when it is worn, thus reducing the costs involved. Thus, it is also conceivable to have a number of teeth on the sprocket and thus Changing the speed of the drive roller and adapting it to different requirements in a simple manner without having to replace the complete drive roller.

The sprocket can, for example, be detachably fastened to the drive head in the circumferential direction in a rotationally fixed manner and non-slip in the axial direction. Alternatively, the sprocket and drive head can be positively connected to one another by means of one or more projections and recesses that are provided on both parts and engage in the assembled state, whereby one or more retaining screws can be provided as a releasable safeguard against axial displacement, which secure the sprocket to the Connect the drive head.

In particular, a stop ring for the roller body can be formed on the fastening piece. With this configuration, correct insertion of the drive head and / or the roller base with the fastening piece into the roller body is ensured in a simple manner. Furthermore, the insertion of the one or more receptacles for the connecting body or bodies and / or the introduction of the one or more connecting bodies into the housings can be facilitated.

For example, the receptacles in the fastening connection can be positioned with sufficient accuracy in the axial direction in relation to the receptacles in the roller body according to a known, respectively constant distance in the axial direction between the stop ring and the respective receptacles, if the drive head and / or the roller base is inserted in the roller body ,

Alternatively or additionally, a positioning device can be provided for positioning the drive head and / or the roller base in the roller body. For example, an optical positioning device such as a radiographic test (“X-ray test”) can be provided, by means of which the position of the receptacles in the fastening socket can be determined with the drive head and / or roller base inserted in the roller body.

The interior of the roller body can be sealed against an external environment of the roller body by means of a sealing element. The drive head and / or the roller base can advantageously be sealed off from the roller body by means of a sealing element. Further advantageously, the drive head and / or the roller base - in particular a bearing arranged therein, in which a roller axle is mounted - can be sealed against the roller axle by means of a sealing element.

• - Einsetzen des Antriebskopfs in das eine freie Ende des Rollenkörpers und
• - Befestigen des Antriebskopfs an dem Rollenkörper mittels
• - Einbringen von Aufnahmen für den Verbindungskörper in den Rollenkörper und in den Befestigungsstutzen und
• - Einbringen des Verbindungskörpers von außen in Radialrichtung.

One aspect of the invention relates to a method for providing a conveyor roller with one or more of the features described above, which comprises the steps:

• - Insert the drive head in one free end of the roller body and
• - Attach the drive head to the roller body using
• - Introducing recordings for the connecting body in the reel body and in the mounting piece and
• - Introducing the connecting body from the outside in the radial direction.

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

The roller base is preferably formed with an attachment socket which is identical to the drive head and is attached to the other free end of the roller body in an identical manner to the drive head.

The conveyor roller can be subjected to a surface treatment after the attachment pieces have been attached. This means that, for example, anti-rust treatment can be carried out without the need for post-treatment of weld seams.

Furthermore, the conveyor roller can be equipped with a bearing for a roller axis and a roller axis after attaching the mounting piece.

Furthermore, a seal can be provided between the drive head and / or the roller base and the roller body and / or between the bearing and the roller axis during or after the attachment of the attachment piece.

Since all components of the conveyor roller are essentially assembled mechanically, in particular without time-consuming welding work, including time-consuming and labor-intensive preparation and post-processing, a manufacturing effort for the conveyor roller can be reduced. For example, an external electroplating process can be dispensed with, since galvanized pipes can already be used for the reel body due to the omission of the welding work.

An embodiment of the conveyor roller according to the invention is explained in more detail below with reference to drawings. It goes without saying that the present invention is not restricted to the exemplary embodiment described below, and that individual features thereof can be combined to form further exemplary embodiments.

• 1 einen Querschnitt durch die Verbindungskörper in einer Vorderansicht der Förderrolle gemäß einem Ausführungsbeispiel der Erfindung; und
• 2 einen Längsschnitt durch die Förderrolle gemäß 1 in einer Draufsicht.

Show it:

• 1 a cross section through the connecting body in a front view of the conveyor roller according to an embodiment of the invention; and
• 2 a longitudinal section through the conveyor roller 1 in a top view.

The axial direction Ax , the circumferential direction Around and the radial direction Ra are shown in the figures by means of directional arrows, in particular in the manner of a coordinate system. Although the direction arrows only point in one direction, the direction information also contains a respective opposite direction. There are two radial directions by way of example Ra specified; this is just an impression of the many possible radial directions Ra mediated.

The circumferential direction falls in the respective top view or side view Around with one of the radial directions Ra together or is aligned parallel to it and therefore not shown separately.

One in 1 shown conveyor roller 1 according to an embodiment of the invention is in a cross section AA through several connecting bodies 2 shown in a front view, the cross section of the in 2 specified cutting course AA follows.

A drive head 4 with a mounting piece 6 is on a free end of a reel body 8th in this reel body 8th used.

The connecting body 2 are designed as blind rivets and in the radial direction Ra from outside in recordings 10 brought in and shown in still riveted condition. A collar 12 In this exemplary embodiment, the blind rivet stands over a surface of the roller body 8th about, but can be completely included in a depression (not shown here).

Each of the shots 10 penetrates the roller body in this embodiment 8th in the axial direction Ax Completely. Likewise in the axial direction Ax A fastening piece is completely penetrated 6 a drive head 4 that in the reel body 8th is used.

The drive head 4 has a mounting hole 14 for a bearing (not shown here) and a through hole 16 for a roller axis (not shown here).

The in 2 shown longitudinal section BB through the conveyor role 1 according to 1 follows the in 1 specified cutting course BB , The supporting role 1 is designed as a drive roller, the length of which is in the axial direction Ax is shown abbreviated.

On the drive head 4 is a sprocket at one free end 18 integrally formed. In the other end area of the drive head 4 is also a stop ring 20 educated. The drive head 4 is up to the contact with the reel body 8th with the stop ring 20 in the reel body 8th used.

At another free end of the reel body 8th is a roller floor 22 intended. The roller floor 22 is similar to the drive head 4 with a stop ring 20 educated. Similar to the drive head 4 points the roller floor 22 a location hole 14 for a bearing (not shown here) and a through hole 16 for a roller axis (not shown here). The roller axis can be continuous or as an axle stub.

When inserting the sprocket 18 in the reel body 8th Usually there is only a slight adhesion between the sprocket 18 or the mounting piece 6 and the reel body 8th trained sliding fit. The blind riveting caused by force and the resulting clamping is low. The main force transmission takes place via the shear force on the rivet neck through positive locking.

LIST OF REFERENCE NUMBERS

1

conveyor roller

2

connecting body

4

powerhead

6

fixing connection

8th

roller body

10

Holder for connecting body

12

collar

14

Location hole for bearings

16

Through hole for roller axis

18

Sprocket

20

stop ring

22

Bearing housing

Ax

axially

Ra

radial direction

Around

circumferentially

Claims (10)

Conveyor roller (1) for a conveyor, in particular for conveying pallets and / or containers a roller body (8) and a drive head (4) which is inserted into a free end of the roller body (8) and has a fastening socket (6), wherein the drive head (4) with its attachment piece (6) by means of a positive connection using a connecting body (2) on the roller body (8) in the axial direction (Ax) non-slip and in the circumferential direction (Um) is rotationally fixed and wherein the roller body (8) is completely penetrated by the connecting body (2) and the fastening piece (6) is at least partially penetrated in the radial direction (Ra) and the connecting body (2) can be inserted from the outside in the radial direction (Ra). Conveyor roller (1) after Claim 1 , The connecting body (2) being designed as a rivet, a pin and / or as a screw. Conveyor roller (1) after Claim 1 or 2 , wherein the connecting body (2) is designed as a blind rivet. Conveyor roller (1) according to one of the preceding claims, wherein a head or collar (12) of the connecting body (2) is completely accommodated in an end section of a receptacle (10) for the connecting body (2) which is formed on the outside in the radial direction (Ra). Conveyor roller (1) according to one of the preceding claims, wherein a plurality of positive connections are provided. Conveyor roller (1) according to one of the preceding claims, wherein a roller base (22) is arranged at another free end of the roller body (8). Conveyor roller (1) after Claim 6 , wherein the roller base (22) is designed with an attachment socket (6) which is identical to the drive head (4) and is attached to the other free end of the roller body (8) in an identical manner to the drive head (4). Conveyor roller (1) according to one of the preceding claims, wherein a chain wheel (18) is formed in one piece with the drive head (4) or is detachably fastened to the drive head (4). Conveyor roller (1) according to one of the preceding claims, wherein a stop ring (20) for the roller body (8) is formed on the fastening piece (6). Method for providing a conveyor roller (1) according to one of the preceding claims, comprising the steps: - Inserting the drive head (4) into one free end of the roller body (8) - Attach the drive head (4) to the roller body (8) by means of - Introducing receptacles (10) for the connecting body (2) in the roller body (8) and in the mounting piece (6) and - Introducing the connecting body (2) from the outside in the radial direction (Ra).

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