Ground processing roller for ground processing machine and ground processing machine

Abstract

The utility model relates to a ground processing roller for a ground processing machine, in particular to a ground processing roller for a ground compacting machine, which comprises a roller sleeve (38) which extends along the direction of a roller rotation axis (W) and surrounds the roller rotation axis (W) and a roller driving device (42) which is used for driving the roller sleeve (38) to rotate around the roller rotation axis (W). The roller drive (42) comprises an electric roller drive motor (44) and a transmission (46), and a motor drive (70) of the electric roller drive motor (44) is coupled to a transmission input (82) of the transmission (46) by means of a rotational speed conversion device (64) for torque transmission. The utility model further relates to a ground processing machine which comprises the ground processing roller.

Description

Technical Field

[0001] The utility model relates to a ground processing roller for a ground processing machine, in particular a ground compacting machine, comprising a roller sleeve extending in the direction of the roller rotation axis and surrounding the roller rotation axis, and a roller driving device for driving the roller sleeve to rotate around the roller rotation axis. Background Art

[0002] For ground working machines designed, for example, as ground compactors, it is known to drive one or possibly more ground working rollers arranged on the ground working machine to rotate about corresponding roller rotation axes in order to move such ground working machines over the ground to be worked. The roller drive used for this purpose can include a hydraulic circuit having a hydraulic pump driven, for example, by an internal combustion engine and a hydraulic motor coupled to the roller sleeves of such ground working rollers.

[0003] In order to avoid the use of fossil fuels, there is a trend to use electric roller drive motors in such roller drives. In order to move the floor-working machine at a desired speed on the floor to be moved, such electric roller drive motors usually have to be coupled to a transmission in order to convert (especially reduce) the rotational speed of the electric roller drive motor to a rotational speed of the floor-working roller suitable for the movement of the floor-working machine. Utility Model Content

[0004] The utility model aims to provide a floor processing roller, which can realize the appropriate rotation speed of a roller sleeve of the floor processing roller driven to rotate by an electric roller driving motor through simple structural measures.

[0005] According to the utility model, this object is achieved by a ground processing roller for a ground processing machine (especially a ground compactor), which ground processing roller includes a roller sleeve extending in the direction of the roller rotation axis and surrounding the roller rotation axis, and a roller drive device for driving the roller sleeve to rotate around the roller rotation axis, wherein the ground processing roller is characterized in that the roller drive device includes an electric roller drive motor and a transmission device, and the motor drive mechanism of the electric roller drive motor is coupled to the transmission input mechanism (Getriebe-Eingangsorgan) of the transmission device by means of a speed conversion device for torque transmission.

[0006] By providing a speed conversion device between the electric roller drive motor and the transmission device, on the one hand, it is possible to position the electric roller drive motor and the transmission device separately in space. On the other hand, the speed conversion device provides the possibility of performing speed conversion before the transmission device, so that the transmission device itself can be designed to have a simpler structure, but the speed of the floor processing roller or roller sleeve required for the movement of the floor processing machine can still be achieved through the interaction between the speed conversion device and the transmission device.

[0007] In order to be able to use a simple design in the area of ​​the speed converter, it is proposed that the transmission input mechanism can be driven by the electric roller drive motor to rotate about the roller rotation axis, and the motor drive mechanism can rotate about the motor rotation axis eccentric to and substantially parallel to the roller rotation axis.

[0008] For a compact design of the floor processing roller, the electric roller drive motor, the transmission device and the speed conversion device can be arranged in the roller interior space surrounded by the roller sleeve.

[0009] Since the electric roller drive motor generally has a high efficiency in a speed range which is higher than the speed range achievable by the floor processing roller, it is proposed to design the speed converter device for reducing the speed.

[0010] The motor drive mechanism may include a drive wheel of a speed conversion device connected to a motor shaft of the electric roller drive motor for common rotation, and the transmission input mechanism may include a driven wheel of the speed conversion device connected to a transmission input shaft of the transmission device for common rotation and coupled to the drive wheel for torque transmission.

[0011] In a design that is easy to install and reliable in operation, it can be arranged that the driving wheel is designed as an active pulley, the driven wheel is designed as a driven pulley, and the active pulley and the driven pulley are coupled by at least one transmission belt (preferably a toothed transmission belt) for torque transmission.

[0012] In an alternative design, in particular when very large drive torques are to be transmitted in larger floor-working machines, the drive wheel can be designed as a drive gear and the driven wheel can be designed as a driven gear, and the drive gear and the driven gear can:

[0013] - are coupled to each other by a chain for torque transmission,

[0014] or

[0015] - are coupled to each other via at least one intermediate gear for torque transmission,

[0016] or

[0017] -mesh with each other.

[0018] The transmission can be designed as a planetary transmission, which can include at least two planetary transmission stages connected in series, which are used for efficient torque transmission in order to achieve a required speed conversion, in particular a reduction in speed.

[0019] In order to be able to transmit the torque introduced into the transmission to the roller sleeve, the transmission output of the transmission can be connected to the roller sleeve for co-rotation about the roller axis of rotation.

[0020] According to another aspect of the present invention, which can preferably be combined with the aforementioned design aspects, a vibration generating system having an electric unbalanced drive motor and an unbalanced shaft is arranged in the floor processing roller, and the unbalanced shaft can be driven by the electric unbalanced drive motor to rotate around the unbalanced shaft rotation axis, wherein the electric unbalanced drive motor is connected to the unbalanced shaft by means of at least one universal joint (Kardangelenk) for common rotation.

[0021] By means of such a vibration generating system, depending on the design of the vibration generating system, a vibration movement can be generated on the floor processing roller, i.e. a deflection substantially orthogonal to the roller axis of rotation can be generated, or an oscillating movement can be generated, i.e. a periodic forward and backward rotational movement of the roller sleeve can be generated, which rotational movement is superimposed on the rolling movement. By providing at least one universal joint between the unbalanced shaft and the electric unbalanced drive motor, the electric unbalanced drive motor is substantially decoupled from the vibration movement caused on the floor processing roller or the roller sleeve, thereby avoiding an influence on the operation of the electric unbalanced drive motor.

[0022] In order to achieve an effective decoupling of the radial movement, the motor shaft of the electric unbalanced drive motor can be coupled to a cardan shaft by means of a cardan joint, and the cardan shaft can be coupled to the unbalanced shaft by means of a further cardan joint.

[0023] The unbalanced shaft can be rotatably supported about the unbalanced shaft rotation axis on a roller supporting structure, which is rotatably connected to the roller sleeve about the roller rotation axis, and the electric unbalanced drive motor can be supported on a machine supporting structure (i.e., a system area that basically does not rotate during operation), which is rotatably supported on the roller sleeve about the roller rotation axis.

[0024] In order to generate an oscillating motion or an oscillating torque acting on the roller sleeve to perform an oscillating motion and oriented substantially tangentially to the roller axis of rotation, at least two unbalanced masses can be driven by means of an unbalanced shaft to rotate about a corresponding unbalanced axis of rotation, which is eccentric to and substantially parallel to the unbalanced shaft axis of rotation. Alternatively or additionally, in order to generate a vibration motion or a vibration force acting on the roller sleeve to perform a vibration motion and oriented substantially orthogonally to the roller axis of rotation, an unbalanced mass can be carried on the unbalanced shaft, which can rotate together with the unbalanced shaft about the unbalanced shaft axis of rotation.

[0025] Advantageously, the unbalanced shaft axis of rotation is substantially coaxial with the roller axis of rotation.

[0026] The utility model also relates to a ground processing machine, in particular a ground compacting machine, which comprises at least one ground processing roller constructed according to the utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The utility model is described in detail below with reference to the accompanying drawings. The accompanying drawings show:

[0028] Figure 1 A perspective longitudinal section view of a floor processing roller is shown;

[0029] Figure 2 Shows from Figure 1 II direction observation Figure 1 A side view of the floor processing roller;

[0030] Figure 3 Shown with Figure 2 corresponding view with the cover housing of the speed converter removed;

[0031] Figure 4 Shown with Figure 2 A corresponding view, in which the cover housing of the speed converter is shown transparently;

[0032] Figure 5 Shown along Figure 4 A longitudinal cross-sectional view of the ground processing roller cut along the VV line in FIG.

[0033] Figure 6 A side view of a floor working machine with two floor working rollers is shown. DETAILED DESCRIPTION

[0034] Reference below Figures 1 to 5 Before describing the structure of the floor processing roller in detail, refer to Figure 6 A soil working machine 10 designed as a soil compactor is described, on which such soil working rollers can be used, for example.

[0035] The floor-working machine 10 comprises a front frame 12 and a rear frame 14, wherein the rear frame 14 is hinged to the front frame 12 for manipulating the floor-working machine 10. An operating platform 16 is provided on the rear frame 14 for an operator to operate the floor-working machine 10.

[0036] By means of a machine support structure generally designated 18, a ground processing roller 20, which in the example shown is used as a compactor roller, surrounds the machine support structure 18. Figure 6 The roller rotation axis is rotatably supported on the front frame 12, which is perpendicular to the drawing plane. Similarly, the ground processing roller 24, which also serves as a compactor roller, is rotated around the machine support structure 22. Figure 6 The roller rotation axis orthogonal to the drawing plane is rotatably supported on the rear frame 14.

[0037] Reference Figures 1 to 5 , the structure of the floor processing roller 20 and the machine carrying structure 18 assigned thereto will be described below as an example. It should be noted that the floor processing roller 24 can be constructed together with the machine carrying structure 22 in essentially the same way.

[0038] Especially in Figure 1 and Figure 5 In the drawing, it can be seen that the machine support structure 18 of the floor processing roller 20 comprises two plate-shaped support elements 26, 28. These can be fixed to the front frame 12 via respective upper parts 30, 32. Due to the fact that the lower parts 34, 36 are offset towards each other in the direction of the roller rotation axis W relative to the respective upper parts 30, 32, the support elements 26, 28 are located in the roller interior 40 of the floor processing roller 20, which is surrounded by the roller shell 38. As explained in detail below, in these parts 34, 36, the two support elements 26, 28 carry the roller shell 38 and the individual system areas of the floor processing roller 20, which are arranged in the roller interior 40.

[0039] It should be noted that, for example, in the case of a frame-operated (schemelgelenkt) floor processing machine, the two supporting elements 26, 28 can be fixed to a control frame or can form part of such a control frame, in which case the floor processing roller 20 is then located, for example, in the same way in the front area, so that the frame carrying the floor processing roller 24 can also be operated, i.e. pivotable.

[0040] The floor processing roller 20 comprises a roller drive device, generally designated 42. The roller drive device 42 comprises an electric roller drive motor 44 and a transmission device 46. A coupling disc 50 is carried on a transmission output mechanism 48 of the transmission device 46, which is designed, for example, in the form of a housing, and the coupling disc 50 supports or is connected to a carrier disc 54 via a plurality of elastic coupling elements 52 for co-rotation about the roller rotation axis W, the carrier disc 54 being also commonly referred to as a round blank (Ronde), which is fixed to the inner side of the roller sleeve 40, for example, by welding. The transmission output mechanism 48, the coupling disc 50 and the carrier disc 54 are thus connected for co-rotation about the roller rotation axis W.

[0041] The non-rotating housing region 56 of the transmission 46 is supported on a portion 34 of the support element 26 which is offset in the roller interior 40 so that Figure 1 and Figure 5 In the region shown on the left in the middle, the floor processing roller 20 or its roller sleeve 38 is supported via a transmission 46 on a support element 26 of the machine support structure 18 so as to be rotatable about a roller rotation axis W.

[0042] At its other axial end region, the floor processing roller 20 or its roller sleeve 38 is rotatably supported around the roller rotation axis W via another supporting plate 58 fixed to the inner side of the roller sleeve 38, a plurality of elastic connecting elements 60 and a connecting assembly 62 connected thereto (in the design example shown, the connecting assembly 62 is composed of multiple parts) on a portion 36 of the supporting element 28 of the machine supporting structure 18, which is offset in the roller internal space 40.

[0043] The roller drive 42 comprises a speed converter 64 designed to reduce the speed for torque transmission between the electric roller drive motor 44 and the transmission 46. The speed converter 64 comprises a drive wheel 66, which in the illustrated embodiment is designed as a drive pulley and which together with a motor shaft 68 of the electric roller drive motor 44 provides a motor drive mechanism 70.

[0044] The speed conversion device 66 further comprises a driven pulley 72 designed as a driven pulley which, together with a transmission input shaft 80 of the transmission 46 , forms a transmission input mechanism 82 .

[0045] In order to transmit torque between the motor drive 70 and the transmission input 82, a drive belt 84 (preferably designed as a toothed belt) is provided in the illustrated design example. In order to keep it under tension, a tensioning pulley 86 can be provided.

[0046] from Figure 1 and Figure 5It can be seen in particular that the entire roller drive 42, i.e. the electric roller drive motor 44, the transmission 46 and the speed converter 64, is arranged in the roller interior 40 surrounded by the roller sleeve 38, so that no system area of ​​the roller drive 42 protrudes axially beyond the roller sleeve 38. In this arrangement, the cover-like cover housing 88, which axially covers the speed converter 64 and is fixed, for example, to the support element 26, is also completely positioned in the roller interior 40.

[0047] It can also be seen that in the case of the floor processing roller 20, the electric roller drive motor 44 is located laterally beside the transmission 46 relative to the roller rotation axis W, i.e. substantially completely axially overlapping it, for example, just like the housing region 56 of the transmission 46, which can be fixed, for example by screw connection, at the part 34 of the carrier element 26. The motor drive 70, i.e. the motor shaft 68 and the drive wheel 66 connected thereto for co-rotation, can rotate about the motor rotation axis M, which is substantially parallel to the roller rotation axis W and is eccentrically positioned thereto. As a result, there is a relatively large degree of design freedom with respect to the positioning of the electric roller drive motor 44 relative to the transmission 46 in the axial direction and in the radial direction.

[0048] Especially in Figure 3 and Figure 4 , it can be seen that the drive wheel 66 and the driven wheel 72 have different diameters from each other. Specifically, the drive wheel 66 has a smaller diameter than the driven wheel 72, so that the speed conversion device 64 can effectively reduce the speed and therefore the transmission input mechanism 82 rotates at a lower speed than the motor drive mechanism 70. Therefore, the first stage of speed reduction has already been carried out in the area of ​​torque transmission between the electric roller drive motor 44 and the transmission device 46, so that the transmission device 46, which is basically also designed for speed reduction, only needs to be effectively reduced to a lesser extent. For example, the transmission device 46 can be constructed as a two-stage planetary transmission device, in which the input speed, i.e. the speed of the transmission input shaft 80, is continuously reduced to a speed in two transmission stages acting in series in the torque flow (Drehmomentenfluss), which speed is suitable for the ground treatment machine 10 to operate in the desired speed range.

[0049] It should be noted that the speed conversion device 64 can be designed in a different manner from the illustrated manner. For example, the transmission belt 84 can be designed as a traditional V-shaped transmission belt, or a plurality of such transmission belts 84 can cooperate with one or more correspondingly designed drive wheels 66 or one or more correspondingly designed driven wheels 78 in parallel with each other. In another alternative design type, the drive wheel 66 can be designed as a drive gear, and the driven wheel 78 can be designed as a driven gear. These gears can be directly meshed with each other or can be meshed with one or more intermediate gears to transfer torque. Such gears can also be coupled to each other via one or more chains acting in parallel with each other, and are therefore connected for transmitting torque.

[0050] In another alternative embodiment, the speed converter 64 can be designed as an angular gear. The drive wheel 66 connected to the motor shaft 68 and the driven wheel 72 connected to the transmission input shaft 82 are designed in the form of bevel wheels, as are the intermediate gears acting between them or meshing with them, which in such an embodiment can rotate about a rotation axis parallel to the motor rotation axis M and the roller rotation axis W. When each pair of such bevel wheels meshes with each other, the two rotation axes involved are at an angle of approximately 90° to each other.

[0051] Even when an angular transmission is used, the drive wheel 66 and the driven wheel 72 can mesh directly with each other. These wheels can also be designed as cone wheels. With such a design, there is greater freedom with respect to the positioning of the electric roller drive motor 44, in particular with respect to the orientation of its motor rotation axis M. This can be oriented, for example, orthogonally to the roller rotation axis W and therefore also orthogonally to the rotation axis of the transmission input mechanism 82.

[0052] The floor processing roller 20 further comprises a vibration generating system, generally designated 90. The vibration generating system 90 comprises an unbalanced shaft 92, which is rotatably supported in one axial end region thereof relative to a carrier disc 58 and in another axial end region thereof relative to a further carrier disc 94, and is therefore rotatable in the roller interior 40 substantially about an unbalanced shaft rotation axis U which is concentric with the roller rotation axis W. The two carrier discs 58, 94 thus form a roller bearing structure 74 for the unbalanced shaft 92. The unbalanced shaft 92 rotatably supports two unbalanced masses 98, 100, which are offset from one another at an angular distance of 180° about the roller rotation axis W or the unbalanced shaft rotation axis U, by means of a belt drive system, generally designated 96, so as to be rotatable at the two carrier discs 58, 94 about the respective unbalanced rotation axis D1, D2. When the two unbalanced masses 98 and 100 rotate around the corresponding unbalanced rotation axes D1 and D2, they generate an oscillating torque that is substantially tangentially oriented to the roller rotation axis W, which acts on the floor processing roller 20 or the roller sleeve 38 to perform periodic forward and backward rotational motion around the roller rotation axis W.

[0053] The vibration generating system 90 further comprises an electric unbalanced drive motor 102, which is supported, for example, on the portion 36 of the load-bearing element 28 of the machine load-bearing structure 18. The motor shaft 104 of the electric unbalanced drive motor 102 is connected for common rotation to the unbalanced shaft 92 by means of a cardan shaft, generally designated 106. The cardan shaft 106 comprises a shaft portion 108, which is coupled at its two axial ends via cardan joints 110 or 112 on the one hand to the motor shaft 104 of the electric unbalanced drive motor 102 and on the other hand to the unbalanced shaft 92.

[0054] Due to the use of the cardan shaft 108, radial decoupling of the electric unbalanced drive motor 102 and the unbalanced shaft 92 is achieved. Due to the presence of the elastic coupling elements 52, 60, the unbalanced shaft 92 can basically move radially relative to the electric unbalanced drive motor 102, so that without using the cardan shaft 106, radial forces can be transmitted to the motor shaft 104 of the electric unbalanced drive motor 102, so that the rotor coupled to the motor shaft 104 will also be subject to corresponding radial effects, which may affect the operating characteristics or functions of the electric unbalanced drive motor 102 due to the undesired or undefined relative movement between the rotor and the stator.

[0055] It should be noted that, alternatively or in addition to the generation of oscillating torque by the vibration generating system 90 as shown, it can also be designed to generate a vibrating force or a vibrating motion. Figure 5As shown by the dashed line, other or alternative unbalanced mass blocks 76 can be arranged on the unbalanced shaft 92, whose mass center is eccentric to the unbalanced shaft rotation axis U, so that during the rotation of the unbalanced shaft 92, radially acting forces can be applied or transmitted to the roller sleeve 38 and cause it to produce a vibrating movement in a known manner.

Claims

1. A floor processing roller for a floor processing machine, comprising a roller sleeve (38) extending in the direction of a roller rotation axis (W) and surrounding the roller rotation axis (W), and a roller driving device (42) for driving the roller sleeve (38) to rotate around the roller rotation axis (W), characterized in that: The roller drive device (42) comprises an electric roller drive motor (44) and a transmission device (46), and a motor drive mechanism (70) of the electric roller drive motor (44) is coupled to a transmission input mechanism (82) of the transmission device (46) by means of a speed conversion device (64) for torque transmission.

2. The floor processing roller according to claim 1, characterized in that: The transmission input mechanism (82) can be driven by the electric roller drive motor (44) to rotate around the roller rotation axis (W), and the motor drive mechanism (70) can rotate around a motor rotation axis (A) that is eccentric and parallel to the roller rotation axis (W).

3. The floor processing roller according to claim 1 or 2, characterized in that: The electric roller drive motor (44), the transmission (46) and the speed conversion device (64) are arranged in a roller interior space (40) enclosed by the roller shell (38).

4. The floor processing roller according to claim 1 or 2, characterized in that: The speed converter (64) is designed to reduce the speed.

5. The floor processing roller according to claim 1 or 2, characterized in that: The motor drive mechanism (70) includes a drive wheel (66) of the speed conversion device (64), the drive wheel (66) being connected to the motor shaft (68) of the electric roller drive motor (44) for common rotation, and the transmission input mechanism (82) includes a driven wheel (72) of the speed conversion device (64), the driven wheel (72) being connected to the transmission input shaft (80) of the transmission device (46) for common rotation and coupled to the drive wheel (66) for torque transmission.

6. The floor processing roller according to claim 5, characterized in that: The driving wheel (66) is designed as a driving pulley, the driven wheel (72) is designed as a driven pulley, and the driving pulley and the driven pulley are coupled via at least one transmission belt (84) for torque transmission.

7. The floor processing roller according to claim 6, characterized in that: The at least one drive belt (84) is a toothed drive belt.

8. The floor processing roller according to claim 5, characterized in that: The driving wheel (66) is designed as a driving gear, the driven wheel (72) is designed as a driven gear, and the driving gear and the driven gear: - are coupled to each other by a chain for torque transmission, or - are coupled to each other via at least one intermediate gear for torque transmission, or -mesh with each other.

9. The floor processing roller according to claim 1 or 2, characterized in that: The transmission (46) is designed as a planetary transmission.

10. The floor processing roller according to claim 9, characterized in that: The planetary transmission comprises at least two planetary transmission stages connected in series, and the planetary transmission stages are used for efficiently transmitting torque.

11. The floor processing roller according to claim 1 or 2, characterized in that: The transmission output mechanism (48) of the transmission device (46) is connected to the roller sleeve (38) for common rotation about the roller rotation axis (W).

12. The floor processing roller according to claim 1 or 2, characterized in that: The vibration generating system (90) is provided with an electric unbalanced drive motor (102) and an unbalanced shaft (92) which can be driven by the electric unbalanced drive motor (102) to rotate about an unbalanced shaft rotation axis (U), and the electric unbalanced drive motor (102) is connected to the unbalanced shaft (92) by means of at least one universal joint (110, 112) for common rotation.

13. The floor processing roller according to claim 12, characterized in that: The motor shaft (104) of the electric unbalanced drive motor (102) is coupled to a cardan shaft (106) by means of a cardan joint (110), and the cardan shaft (106) is coupled to the unbalanced shaft (92) by means of another cardan joint (112).

14. The floor processing roller according to claim 13, characterized in that: The unbalanced shaft (92) is supported on a roller support structure (74) so ​​as to be rotatable about the unbalanced shaft rotation axis (U), the roller support structure (74) is connected to the roller sleeve (38) so as to be rotatable about the roller rotation axis (W), and the electric unbalanced drive motor (102) is supported on a machine support structure (18), and the machine support structure (18) supports the roller sleeve (38) so as to be rotatable about the roller rotation axis (W).

15. The floor processing roller according to claim 12, characterized in that: By means of the unbalanced shaft (92), at least two unbalanced masses can be driven to rotate around corresponding unbalanced rotation axes, wherein the unbalanced rotation axes are eccentric to and parallel to the unbalanced shaft rotation axis (U), and / or an unbalanced mass is supported on the unbalanced shaft (92), wherein the unbalanced mass can rotate together with the unbalanced shaft (92) around the unbalanced shaft rotation axis (U).

16. The floor processing roller according to claim 12, characterized in that: The unbalance shaft rotation axis (U) is coaxial with the roller rotation axis (W).

17. A floor processing roller for a floor processing machine, comprising a roller sleeve (38) extending in the direction of a roller rotation axis (W) and surrounding the roller rotation axis (W), and a roller driving device (42) for driving the roller sleeve (38) to rotate around the roller rotation axis (W), characterized in that: The vibration generating system (90) is provided with an electric unbalanced drive motor (102) and an unbalanced shaft (92) which can be driven by the electric unbalanced drive motor (102) to rotate about an unbalanced shaft rotation axis (U), and the electric unbalanced drive motor (102) is connected to the unbalanced shaft (92) by means of at least one universal joint (110, 112) for common rotation.

18. The floor processing roller according to claim 17, characterized in that: The motor shaft (104) of the electric unbalanced drive motor (102) is coupled to a cardan shaft (106) by means of a cardan joint (110), and the cardan shaft (106) is coupled to the unbalanced shaft (92) by means of another cardan joint (112).

19. The floor processing roller according to claim 17 or 18, characterized in that: The unbalanced shaft (92) is supported on a roller support structure (74) so ​​as to be rotatable about the unbalanced shaft rotation axis (U), the roller support structure (74) is connected to the roller sleeve (38) so as to be rotatable about the roller rotation axis (W), and the electric unbalanced drive motor (102) is supported on a machine support structure (18), and the machine support structure (18) supports the roller sleeve (38) so as to be rotatable about the roller rotation axis (W).

20. The floor processing roller according to claim 17 or 18, characterized in that: By means of the unbalanced shaft (92), at least two unbalanced masses can be driven to rotate around corresponding unbalanced rotation axes, wherein the unbalanced rotation axes are eccentric to and parallel to the unbalanced shaft rotation axis (U), and / or an unbalanced mass is supported on the unbalanced shaft (92), wherein the unbalanced mass can rotate together with the unbalanced shaft (92) around the unbalanced shaft rotation axis (U).

21. The floor processing roller according to claim 17 or 18, characterized in that The unbalance shaft rotation axis (U) is coaxial with the roller rotation axis (W).

22. A floor working machine comprising at least one floor working roller (20) according to any one of claims 1 to 21.

23. The floor processing machine according to claim 22, characterized in that: The soil processing machine is a soil compactor.

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