阅读说明：本技术 用于输送机系统的驱动辊组件和包括它的输送机系统 (Drive roller assembly for a conveyor system and conveyor system comprising same ) 是由 D·达马斯卡 E·沙姆勒 胡万川 孙徐 S·霍华德 于 2019-04-17 设计创作，主要内容包括：本发明涉及一种用于输送机系统的驱动辊组件,包括：具有纵向轴线的驱动辊,其包括辊体和轴,轴具有第一和第二轴向端部分,驱动辊能够绕纵向轴线旋转；支撑结构,用于可旋转地支撑驱动辊,支撑结构包括支撑装置,用于可旋转地支撑轴的第二轴向端部分；和驱动装置,用于可旋转地驱动驱动辊。该组件还包括：耦接装置,用于在驱动辊与驱动装置可旋转地接合的耦接装置的轴向接合状态可旋转地耦接轴的第一轴向端部分和驱动装置；和用于在耦接装置的轴向脱开状态轴向释放轴的第一轴向端部分和驱动装置的接合,支撑装置适于可脱离地附连到支撑结构的附连部分,以在附连时保持驱动辊可旋转地支撑在支撑结构上,以及在脱离时允许驱动辊从支撑结构移除。(The present invention relates to a drive roller assembly for a conveyor system, comprising: a drive roller having a longitudinal axis, the drive roller including a roller body and a shaft, the shaft having first and second axial end portions, the drive roller being rotatable about the longitudinal axis; a support structure for rotatably supporting the drive roller, the support structure including a support means for rotatably supporting the second axial end portion of the shaft; and a driving device for rotatably driving the driving roller. The assembly further comprises: a coupling means for rotatably coupling the first axial end portion of the shaft and the drive means in an axially engaged state of the coupling means in which the drive roller is rotatably engaged with the drive means; and for axially releasing the engagement of the first axial end portion of the shaft and the drive means in an axially disengaged state of the coupling device, the support means being adapted to be disengagably attached to the attachment portion of the support structure to keep the drive roller rotatably supported on the support structure when attached and to allow the drive roller to be removed from the support structure when detached.)

1. A drive roller assembly (1) for a conveyor system, the drive roller assembly (1) comprising:

a drive roller (10) having a longitudinal axis (L), the drive roller (10) comprising a roller body (12) and a shaft (14), the shaft (14) having first and second axial end portions (14a, 14b), the drive roller (10) being rotatable about the longitudinal axis (L),

a support structure (20) for rotatably supporting the drive roller (10), the support structure (20) comprising a support means (22) for rotatably supporting the second axial end portion (14b) of the shaft (14), and

a drive device (30) for rotatably driving the drive roller (10),

it is characterized in that the preparation method is characterized in that,

the drive roller assembly (1) further comprises:

-coupling means (40) for rotatably coupling a first axial end portion (14a) of a shaft (14) and said drive means (30) in an axially engaged condition of said coupling means (40), in which axially engaged condition said drive roller (10) is rotatably engaged with said drive means (30); and for axially releasing the engagement of the first axial end portion (14a) of the shaft (14) and the drive means (30) in an axially disengaged condition of the coupling means (40), wherein,

a support arrangement (22) is adapted to be releasably attachable to an attachment portion (21) of the support structure (20) to keep the drive roller (10) rotatably supported on the support structure (20) when attached and to allow removal of the drive roller (10) from the support structure (20) when detached.

2. A drive roller assembly according to claim 1 wherein the support means (22) includes a mounting plate (24), the mounting plate (24) being adapted to receive a second axial end portion (14b) of the shaft (14) of the drive roller (10).

3. The drive roller assembly according to claim 2, wherein the mounting plate (24) comprises a bearing (28) to rotatably support the second axial end portion (14b) of the shaft (14) of the drive roller (10).

4. A drive roller assembly according to any one of the preceding claims wherein the support means (22) is detachably attached to the attachment portion (21) of the support structure (20) by means of a fastening element (20), such as a screw or bolt.

5. A drive roller assembly according to any one of the preceding claims wherein the coupling device (40) comprises a first coupling member (41a) rotatably connected to the drive device (30) and a second coupling member (41b) provided on a first axial end portion (14a) of the shaft (14).

6. Drive roller assembly according to claim 5, wherein the first coupling member (41a) comprises a first axial end portion (42) in the direction of its longitudinal axis, wherein the first axial end portion (42) of the first coupling member (41a) comprises a recess (42a) recessed in the direction of the longitudinal axis (L), and wherein the second coupling member (41b) is provided integrally with the first axial end portion (14a) of the shaft (14) of the drive roller (10) and comprises a protrusion (16) interfitting with said recess (42a), and said recess (42a) and said protrusion (16) are adapted to engage with each other, thereby enabling rotational coupling of the first axial end portion (14a) of the shaft (14) of the drive roller (10) and said drive means (30).

7. Drive roller assembly according to claim 5, wherein the second coupling member (41b) is provided integrally with the first axial end portion (14a) of the shaft (14) of the drive roller (10) and comprises a recess which is recessed in the direction of the longitudinal axis (L), and wherein the first coupling member (41a) comprises a first axial end portion (42) in the direction of its longitudinal axis, wherein the first axial end portion (42) of the first coupling member (41a) comprises a protrusion which is complementary to said recess, and said recess and said protrusion are adapted to engage with each other, thereby enabling a rotational coupling of the first axial end portion (14a) of the shaft (14) of the drive roller (10) and said drive means (30).

8. A drive roller assembly according to any one of the preceding claims wherein the first coupling (41a) is non-releasably connectable to the drive device (30).

9. A drive roller assembly according to any one of the preceding claims, wherein the drive roller (10) is removable from the support structure (20) by moving the drive roller (10) in the direction of the longitudinal axis (L) when the support means (22) is disengaged from the support structure (20).

10. A conveyor system comprising a drive roller assembly according to any one of the preceding claims and a conveyor belt, wherein the conveyor belt is drivable by the drive roller.

11. A conveyor system as in claim 9 wherein the conveyor belt is a polyurethane belt or a modular belt.

Technical Field

The present invention relates to a drive roller assembly for a conveyor system, the assembly comprising: a drive roller having a longitudinal axis, the drive roller including a roller body and a shaft, the shaft having first and second axial end portions, the drive roller being rotatable about the longitudinal axis; a support structure for rotatably supporting the drive roller, the support structure including a support means for rotatably supporting the second axial end portion of the shaft; and a driving device for rotatably driving the driving roller; and to a conveyor system including the drive roller assembly.

Background

Conveyor systems are used in various industries to move objects from one location to another. These systems may include different types of rollers, such as feed or discharge rollers, tension rollers, tracking rollers, and drive rollers. It may sometimes be necessary to remove one or more of the rollers for cleaning, maintenance or replacement.

In case the conveyor system is a belt conveyor system, the conveyor belt is wound on a drive roller. The drive roller engages the belt. Thus, the rotational movement of the drive roller causes movement of the belt in the conveying direction. After a period of use, the conveyor belt must be removed from the conveyor system for cleaning, maintenance, or replacement. Removing the tape requires removing at least the drive roller. However, as described above, such removal is complicated because the tape is wound around the drive roller.

In view of the above, several ideas have been implemented to facilitate the removal of specific rollers from a conveyor system.

An example is given in CN 203794146U, which discloses a conveyor belt system wherein a brush roller for the conveyor belt of the cleaning system is provided with a quick release mechanism. However, in the case of a drive roller, it is difficult to implement a quick release mechanism since the drive roller is usually connected to a drive means, such as a motor.

In US 6,509,533B 1a system is disclosed in which the rotational coupling between the motor and the drive roller can be released by moving the motor away from the drive roller. Then, the carrying unit of the conveyor belt system including the driving roller can be disengaged by moving in the upward direction. However, the movement of the motor away from the drive roller requires a complicated configuration.

US 4,131,420 discloses a two-piece quick connect-disconnect coupling connecting a conveyor roller to a drive train, wherein a coupling section of the drive train is detachably connected to the conveyor roller by means of a fixing screw. However, the configuration and processing of the system are complicated.

Disclosure of Invention

In view of these problems of the prior art, it is an object of the present invention to further develop a drive roller assembly of the above-mentioned type such that the drive roller can be released quickly and easily, and to provide a conveyor system comprising said drive roller assembly.

According to the invention, this object is achieved in that the drive roller assembly further comprises: coupling means for rotatably coupling a first axial end portion of a shaft and said drive means in an axially engaged state of said coupling means, said drive roller being rotatably engaged with said drive means in an axially engaged state; and for axially releasing the engagement of the first axial end portion of the shaft and the drive means in an axially disengaged state of the coupling means, wherein the support means is adapted to be disengagably attached to the attachment portion of the support structure to keep the drive roller rotatably supported on the support structure when attached and to allow the drive roller to be removed from the support structure when disengaged.

By providing coupling means allowing axial release of the engagement of the first axial end portion of the shaft and the drive means, and by providing support means detachably attached to the attachment portion of the support structure, the drive roller can be detached from the support structure in a quick and easy manner by disengaging the support means from the attachment portion of the support structure, as will be explained in more detail below.

Typically, the roller body of the drive roller has a cylindrical shape. The drive roller body and the shaft are fixed relative to each other so as not to rotate relative to each other, such that rotation of the shaft results in rotation of the drive roller body. When the drive roller is driven by the drive means, the object to be conveyed by the conveyor system may be moved in the conveying direction. In case the conveyor system is a belt conveyor, the belt is wound on a drive roller. Thus, rotation of the drive roller causes the belt to move in the conveying direction.

The drive roller is rotatably supported by the support structure of the drive roller assembly. The attachment portion of the support structure may be capable of attaching to a conveyor support frame. However, there are also embodiments where the attachment portion of the support structure is an integral part of the conveyor support frame.

The drive means may be any motor suitable for applying a rotational force to the shaft of the drive roller. The drive device may be connectable to a conveyor support frame of the conveyor system.

The coupling means may be any coupling means which allows the first axial end portion of the shaft and the drive means to be rotatably coupled in an axially engaged state in which a rotational force applied by the drive means is transmittable to the first axial end portion of the shaft to thereby rotate the drive roller. The axially engaged state of the coupling means may be obtained by moving the first axial end portion of the shaft towards the drive means in the direction of the longitudinal axis of the drive roller. The axially engaged state may be released by moving the first axial end portion of the shaft away from the drive means in the direction of the longitudinal axis. In this way, an axially disengaged state of the coupling device can be obtained. In the axially disengaged state of the coupling device, the rotational force of the drive device cannot be transmitted to the drive roller.

A method of assembling and disassembling the drive roller assembly will now be explained. The drive roller has two states, an operating state and a free state. In an operating state, the drive roller may be driven by the drive means, thereby being adapted to move the object conveyed by the conveyor system. In the free state, the drive roller assembly is disassembled and the drive roller can be cleaned, repaired or replaced.

In the operational state of the drive roller, the drive roller assembly is in an assembled state. In this state, the coupling device is in its axially engaged state. This axially engaged state may be obtained by moving the drive roller and the drive means towards each other in the direction of the longitudinal axis. In the axially engaged state of the coupling device, the drive roller is rotatably engaged with the drive device. Therefore, the rotational force applied by the driving means can be transmitted to the driving roller. Further, in the axially engaged state, the first axial end portion of the shaft of the drive roller is supported by the coupling means and the drive means. The drive roller is limited in its movement along its longitudinal axis in the direction of the first axial end portion of the shaft. Furthermore, in the assembled state of the drive roller assembly, the support device is attached to the attachment portion of the support structure. The support means is adapted to keep said drive roller rotatably supported on said support structure when it is attached to the attachment portion of the support structure. That is, in this state, the drive roller can only rotate about its longitudinal axis and cannot move in the direction of the longitudinal axis of the drive roller or in any direction perpendicular to the longitudinal axis. In the assembled state, the drive roller is thus in its operational state drivable by the drive means and can thus perform its function to move an object or a belt of the conveyor system.

The drive roller can be removed from the support structure in a simple manner. First, the support device is detached from the attachment portion of the support structure. Next, the drive roller is moved along its longitudinal axis in the direction of the second axial end portion, thereby releasing the engagement of the first axial end portion of the shaft and the drive means. The coupling device is then in its axially disengaged state. This allows the drive roller to be removed from the support structure. The drive roller is then in its free state, in which it can be brought to any position for cleaning or maintenance, or can be exchanged for another drive roller.

In one embodiment of the invention, the support means may comprise a mounting plate adapted to receive the second axial end portion of the shaft of the drive roller. The mounting plate may include an aperture, such as a recess or an opening, into which the second axial end portion may be inserted. The mounting plate may comprise means for preventing the second axial end portion from moving in the direction of the mounting plate. In this way, the mounting plate reliably holds the drive roller in a rotatably supported position on the support structure.

In one embodiment, the mounting plate may include a bearing to rotatably support the second axial end portion of the shaft of the drive roller. In this embodiment, the mounting plate and drive roller are preferably removed together when the mounting plate is disengaged. This further simplifies the removal of the drive roller.

The support device may be releasably attached to said attachment portion of the support structure by means of a fastening element. The fastening element may be a screw or a bolt. The support structure may include complementary threaded holes or openings to receive screws or bolts. The support device may be attached to the attachment portion of the support structure by means of a number of fastening elements, such as a number of screws, a number of bolts or a combination of screws or bolts. Other known fastening elements may be used.

The coupling device may comprise a first coupling element rotatably connected to said drive device and a second coupling element arranged on the first axial end portion of the shaft. The first and second coupling elements are rotatably engageable in an axially engaged state of the coupling device and axially releasable in an axially disengaged state of the coupling device.

In one embodiment according to the present invention, the first coupling element may include a first axial end portion in a direction of a longitudinal axis thereof, wherein the first axial end portion of the first coupling element may include a recess recessed in the direction of the longitudinal axis, and wherein the second coupling element may be provided integrally with the first axial end portion of the shaft of the drive roller and may include a protrusion interfitting with the recess, and the recess and the protrusion are adapted to engage with each other, thereby enabling rotational coupling of the first axial end portion of the shaft of the drive roller and the drive device. The first coupling element may, for example, have an elongated shape extending along a longitudinal axis thereof, and may include a first axial end portion and a second axial end portion. The second axial end portion of the first coupling member may be rotatably connected to the driving device. The recess recessed in the first axial end portion of the first coupling element in the direction of the longitudinal axis may have any shape suitable for being able to be rotatably coupled with the mating protrusion of the second coupling element. For example, the contour of the recess may have the form of a polygon.

Alternatively, the second coupling element may be provided integrally with the first axial end portion of the shaft of the drive roller and may comprise a recess which is recessed in the direction of the longitudinal axis, and wherein the first coupling element may comprise a first axial end portion in the direction of its longitudinal axis, wherein the first axial end portion of the first coupling element may comprise a projection which is complementary to said recess, and said recess and said projection are adapted to engage with each other, thereby enabling rotational coupling of the first axial end portion of the shaft of the drive roller and said drive means. As described above, the first coupling element may have an elongated shape in a longitudinal direction thereof, and may include a first axial end portion and a second axial end portion. The second axial end portion may be rotatably connected to the drive means. The form of the recess may have any shape suitable to be able to rotatably couple with the mating protrusion. For example, the contour of the recess may have the form of a polygon.

In one embodiment of the invention, the first coupling element can be connected to the drive device in a non-releasable manner. This facilitates removal of the drive roller from the support structure. That is, when the support means is disengaged from the attachment portion of the support structure and the drive roller is removed, the coupling means remains fixed to the drive means and does not fall out, thereby facilitating operation of the drive roller assembly. However, there are also embodiments in which the first coupling element is releasably connected to the drive device.

The drive roller can be removed from the support structure by moving the drive roller in the direction of the longitudinal axis when the support device is detached from the attachment portion of the support structure. In this embodiment, the support means and the drive roller can be removed together in a very simple manner by simultaneous movement in the direction of the longitudinal axis.

Another aspect of the invention relates to a conveyor system comprising a drive roller assembly and a conveyor belt as described above, wherein the conveyor belt is drivable by the drive roller. The conveyor belt may be a polyurethane belt or a modular belt.

The drive roller assembly as described above allows the drive roller to be very easily removed from the support structure by simply disengaging the support means from the attachment portion of the support structure. This operation requires few tools, for example only a screwdriver, or can be performed manually in the case of a manually performed disengagement of the support device.

Drawings

In the following description, the invention will be explained in more detail by way of example with reference to the accompanying set of drawings. In the drawings, there is shown in the drawings,

figure 1 is an exploded perspective view of a drive roller assembly according to the present invention,

figure 2 is a perspective view of the drive roller assembly of figure 1 in an assembled state,

figure 3 is a cross-sectional view through line a-a in figure 2,

figure 4 is a perspective view of the drive roller assembly of figure 3 attached to a conveyor support frame,

FIG. 5 is a partial perspective view of the drive roller assembly with the drive roller partially removed from the support structure.

Detailed Description

Figure 1 shows an exploded perspective view of a drive roller assembly 1 according to the present invention. The drive roller assembly 1 includes a drive roller 10. The drive roller 10 extends in the direction of the longitudinal axis L. The drive roller 10 includes a roller body 12 and a shaft 14. In fig. 1, the roller body 12 has a cylindrical form, however, the roller body 12 may also comprise protrusions for engaging with the belt of the belt conveyor. The shaft 14 includes a first axial end portion 14a at a right axial end of the shaft 14 in fig. 1 and a second axial end portion 14b at a left axial end of the shaft 14 in fig. 1. The roller body 12 and the shaft 14 are fixed relative to each other so as not to be rotatable relative to each other. Thus, a rotational force applied to the shaft 14 causes the roller body 12 to rotate about the longitudinal axis L.

The drive roller assembly 1 includes a drive means 30. In the embodiment shown in fig. 1, the drive means 30 is an electric motor. The driving device 30 may generate a rotational force to be transmitted to the driving roller 10.

The drive roller assembly 1 further comprises a coupling device 40. The coupling device 40 includes a first coupling element 41a and a second coupling element 41 b. The first coupling element 41a may be connected to the drive device 30 such that the driving force of the drive device 30 causes the first coupling element 41a to rotate about the longitudinal axis L. The first coupling element 41a has an elongated shape in the direction of the longitudinal axis L. The first coupling element 41a includes a first axial end portion 42 facing the first axial end portion 14a of the shaft 14 and a second axial end portion 44 facing the drive device 30. At its first axial end portion 42, the first coupling element 41a comprises a recess 42a recessed in the direction of the longitudinal axis L. The first axial end portion 14a of the shaft 14 is provided with a second coupling member 41b (see fig. 3). In the present embodiment, the second coupling member 41b is provided integrally with the first axial end portion 14a of the shaft 14 and includes a projection 16 (not visible in fig. 1), the projection 16 being insertable into the recess 42a to effect the rotational engagement between the drive device 30 and the shaft 14 of the drive roller 10. This engagement will be described in further detail below.

Fig. 1 also shows the support device 22 on the left side of fig. 1. The support device 22 includes a mounting plate 24. The mounting plate 24 is provided with an opening 25. The opening 25 is adapted to receive the second axial end portion 14b of the shaft 14. That is, the second axial end portion 14b of the shaft 14 may be inserted through the opening 25. The opening 25 may include a bearing 28 (see fig. 3) to rotatably support the second axial end portion 14b of the shaft 14. The mounting plate 24 further comprises an aperture 27, the aperture 27 being adapted to receive the fastening element 26. The fastening element 26 allows fixing the mounting plate 24 to the attachment portion 21 of the support structure 20 described below. Although the mounting plate 24 is disk-shaped in fig. 1, the mounting plate 24 may be other shapes.

Fig. 2 is a perspective view of the drive roller assembly 1 shown in fig. 1 in its assembled state. In addition to the drive roller 10, the drive means 30 and the support means 22, fig. 2 also shows an attachment portion 21 of the support structure 20. The attachment portion 21 may be secured to the conveyor support frame 100 (not shown) by engaging the recesses 21a, 21b with the conveyor support frame 100. The attachment portion 21 may be welded to the conveyor support frame 100. The mounting plate 24 is attached to the attachment portion 21 by means of fastening elements 26.

Fig. 3 is a sectional view through the line a-a of the drive roller assembly 1 shown in fig. 2 in the direction of arrow a. The drive roller 10 is in its assembled state. The second axial end portion 44 of the first coupling element 41a is coupled to the drive device 30 and is thus rotatable along the longitudinal axis L by the driving force exerted by the drive device 30. The first axial end portion 42 of the first coupling element 41a is provided with a recess 42 a. The recess 42a is recessed along the longitudinal axis L. The recess 42a is engaged with the protrusion 16 protruding from the second coupling element 41b provided on the first axial end portion 14a of the shaft 14. That is, the coupling device 40 is in its axially engaged state, in which the first axial end portion 14a of the shaft 14 and the drive device 30 are rotatably engaged with each other. In this way, the rotational movement of the drive means can be transmitted from the first coupling element 41a to the shaft 14, resulting in the rotation of the roller body 12. The axially engaged state can be achieved by fitting the projection 16 into the recess 42 a. Similarly, by moving the drive roller 10 in the direction of the second axial end portion 14b of the shaft 14 (i.e., the left direction in fig. 3), the engagement can be released axially, thereby removing the projection 16 from the recess 42 a.

Although the coupling device 40 provides a rotational engagement with the shaft 14, the coupling device 40 does not restrict movement of the drive roller 10 in the direction of the longitudinal axis L towards the second axial end portion 14 b. Thus, in order to limit the movement of the drive roller 10 in the direction of the longitudinal axis L (to the left in fig. 3), the support arrangement 22 comprises a mounting plate 24. The mounting plate 24 is attached to the attachment portion 21 (not shown in fig. 3) of the support structure 20 by means of fastening elements 26. The fixed plate 24 includes an opening 25, the opening 25 having a bearing 28 to receive and rotatably support the second axial end portion 14b of the shaft 14. Thus, fig. 3 shows an operational state of the drive roller 10.

Fig. 4 is a perspective view of the drive roller assembly of fig. 3 attached to the conveyor support frame 100. The recesses 21a, 21b engage with the rods of the conveyor support frame 100 to secure the drive roller assembly 1 to the conveyor support frame 100.

To remove the drive roller 10 from the drive roller assembly 1, the mounting plate 24 is disengaged from the attachment portion 21 of the support structure 20, as shown in fig. 5. The mounting plate 24 can be easily detached from the attachment portion 21 of the support structure 20 by removing the fastening element 26 from the attachment portion 21. Then, by moving the mounting plate 24 in the direction of the longitudinal axis L, the mounting plate 24 can be detached from the attachment portion 21. Refer to fig. 3. The drive roller 10 can then be removed from the support structure 20 by pulling it away from the drive means 30 in the direction of the longitudinal axis L. This is due to the fact that the coupling of the drive roller 10 to the drive means 30 is realized by means of the coupling means 40, while the coupling means 40 do not restrict the movement of the shaft 14 in the direction of the second axial end portion 14 b. That is, by moving the drive roller 10 away from the drive device 30, the axially engaged state of the first coupling element 41a and the second coupling element 41b shown in fig. 3 is released, and the coupling device 40 is shifted to the axially disengaged state. Although the drive roller 10 may be removable from the support structure 20 by moving only in the direction of the longitudinal axis L as shown in fig. 4, there are also examples of situations where: the drive roller 10 is removable from the support structure 20 by first moving the drive roller 10 in the direction of the longitudinal axis L to release the axial engagement of the coupling means 40 and then moving the drive roller 10 in a direction crosswise to the direction of the longitudinal axis L. The drive roller 10 is now released from the support structure 20 and is thus in its free state.

In order to return the drive roller 10 to its operating state, the first axial end portion 14a is coupled with the drive means 30 by means of a coupling means 40. This is achieved by embedding the protrusion 16 of the second coupling element 41b provided on the first axial end portion 14a of the shaft 14 into the recess 42a of the first axial end portion 42 of the first coupling element 41 a. This produces a rotatable engagement of the shaft 14 and the drive means 30. Furthermore, in order to firmly fix the drive roller 10 to the support structure 20 and in order to prevent unintentional movement of the drive roller 10 in the direction of the longitudinal axis L, a support arrangement 22 comprising a mounting plate 24 is fixed to the attachment portion 21 by means of a fastening element 26. In the embodiment shown in the figures, this is achieved by embedding the second axial end portion 14b of the shaft in an opening 25 provided in the mounting plate 24 and by attaching a fastening element 26 to the attachment portion 21 provided with a hole 27.

That is, in the present invention, the drive roller 10 may be removed from the conveyor support frame 100 by simply removing the support device 22 including, for example, the mounting plate 24 from the attachment portion 21 of the support structure 20 connected to the conveyor support frame 100. This operation can be carried out using a very simple tool, for example a screwdriver, or, in the case of manually operable fastening elements 26, no tool at all is required.

List of reference numerals

1 drive roller assembly

10 drive roller

12 roller body

14 shaft

14a first axial end portion

14b second axial end portion

16 projection

20 support structure

21 attachment part

21a, 21b recess

22 support device

24 mounting plate

25 opening

26 fastening element

27 holes

28 bearing

30 drive device

40 coupling device

41a first coupling element

41b second coupling element

42 first end portion

42a recess

44 second axial end portion

L longitudinal axis

100 conveyor support