Ground processing roller and ground processing machine

Abstract

The utility model relates to a ground processing roller, which is particularly used for a ground compactor, and comprises a roller sleeve which rotates around a roller rotation axis and surrounds the inner space of the roller; a first lubricant tank arranged below the roller axis of rotation in the height direction, filled or fillable with a lubricant until the first lubricant tank is level at a first distance from the roller axis of rotation in the height direction; and a second lubricant groove which is arranged below the roller rotation axis in the height direction and is filled or can be filled with lubricant until the level of the second lubricant groove is at a second distance from the roller rotation axis in the height direction, and the second distance is smaller than the first distance. Through an overflow connection between the first and the second lubricant tank, in a delivery mode of the lubricant delivery device, when a second lubricant tank level in the second lubricant tank is reached or / and exceeded, lubricant flows from the second lubricant tank through the overflow connection into the first lubricant tank. The utility model further relates to the ground processing machine which comprises the ground processing roller.

Description

Technical Field

[0001] The utility model relates to a ground processing roller, which can be used for compacting the ground, such as asphalt. Background Art

[0002] In order to achieve a higher and more uniform degree of compaction, in particular when compacting asphalt, it is known to use a floor processing roller for such compaction processes, which floor processing roller has an unbalanced device with a plurality of unbalanced masses arranged at a circumferential distance from one another about the roller rotation axis, wherein each unbalanced mass can be driven to rotate about its corresponding unbalanced rotation axis. By rotating the unbalanced masses, depending on the phase position and the direction of rotation of the unbalanced masses or on their centers of gravity relative to one another, in an oscillation mode, an oscillating torque acting essentially tangentially is superimposed on the rotational movement of such a floor processing roller about the roller rotation axis, or in a vibration mode, a force essentially orthogonal to the roller rotation axis is applied to the floor processing roller.

[0003] The various components provided for realizing such an oscillation mode or vibration mode are basically positioned and movable in the roller interior space of such a floor processing roller, which is surrounded by the roller sleeve. In order to provide sufficient lubrication for the rotating components and / or the torque-transmitting components rotatably supported in the various support areas, it is necessary to provide a lubricant or a lubricant circulation in the roller interior space. Utility Model Content

[0004] The utility model aims to provide a ground processing roller, in particular a ground processing roller for a ground compactor, wherein reliable lubrication of components arranged in different radial regions relative to the roller rotation axis of the ground processing roller in the inner space of the roller can be achieved.

[0005] According to the utility model, the object is achieved by a ground processing roller, in particular a ground processing roller for a ground compactor, which comprises:

[0006] - a roller sleeve, which can rotate around the roller rotation axis and surrounds the inner space of the roller,

[0007] an unbalance device with a plurality of unbalance masses which are arranged at a circumferential distance from one another about the roller axis of rotation, wherein each unbalance mass can be driven so as to rotate about its corresponding unbalance axis of rotation,

[0008] - an unbalanced drive device with an unbalanced motor and an unbalanced transmission system, wherein the unbalanced transmission system comprises at least one driving gear and a driven gear associated with each unbalanced mass, wherein the driving gear can be driven for rotation by the unbalanced motor, and the driven gear is connected to the unbalanced mass for common rotation, wherein each driving gear is coupled to at least one driven gear for torque transmission,

[0009] a first lubricant groove which is arranged in the height direction below the axis of rotation of the roller, wherein the first lubricant groove is filled or can be filled with lubricant until a first lubricant groove level is reached which is at a first distance in the height direction relative to the axis of rotation of the roller,

[0010] a second lubricant groove, which is arranged below the roller axis of rotation in the height direction, wherein the second lubricant groove is filled or can be filled with lubricant until a second lubricant groove level is reached which is at a second distance in the height direction relative to the roller axis of rotation, wherein the second distance is smaller than the first distance,

[0011] a lubricant conveying device for conveying lubricant from the first lubricant groove into the second lubricant groove,

[0012] an overflow connection between the first lubricant groove and the second lubricant groove, wherein in a delivery mode of the lubricant delivery device, when the second lubricant groove level in the second lubricant groove is reached or / and exceeded, lubricant flows from the second lubricant groove into the first lubricant groove via the overflow connection.

[0013] By providing two radially staggered lubricant grooves, it is possible to wet the components located in or moving through these areas with lubricant in the radially horizontal areas covered by these lubricant grooves and thereby protect them from excessive load or aging. At the same time, the radially staggered arrangement of the lubricant grooves and the delivery of lubricant from the first lubricant groove to the second lubricant groove create the possibility of excess lubricant returning from the second lubricant groove to the first lubricant groove, and the cascade arrangement of the lubricant grooves enables the circulation of the lubricant guided through them. Therefore, for a relatively small total amount of lubricant and the avoidance of filling the roller interior with excessive lubricant, system areas located at different radial distances relative to the roller rotation axis can be reliably provided with the amount of lubricant required for their lubrication.

[0014] In order to achieve low-wear and reliable torque transmission, at least one drive gear (preferably each drive gear) can mesh with at least one driven gear, or / and at least one driven gear (preferably each driven gear) can be connected to the corresponding unbalanced mass block, so as to rotate together around the unbalanced rotation axis of the unbalanced mass block. In order to be able to generate a tangential or orthogonal action direction to the roller rotation axis by means of the unbalance device, it is recommended that the unbalanced rotation axis of at least one unbalanced mass block (preferably each unbalanced mass block) is eccentric or / and parallel to the roller rotation axis. This results in the use of a relatively small amount of lubricant to achieve effective lubrication of components arranged at different height ranges or radial levels with respect to the roller rotation axis, thereby avoiding the need to fill the roller interior space with excessive lubricant.

[0015] In order to be able to collect the lubricant conveyed or distributed upward from the first lubricant groove by the lubricant conveying device and guide it to the second lubricant groove, it is recommended to arrange a lubricant collecting unit that is open upward in the height direction above the roller rotation axis in the height direction, and to arrange a lubricant flow connection between the lubricant collecting unit and the second lubricant groove, so as to guide the lubricant collected in the lubricant collecting unit to the second lubricant groove.

[0016] For an effective collection effect, the lubricant collecting unit may include a trough-shaped lubricant collecting element which preferably expands upwardly in a funnel-shaped manner in the height direction.

[0017] The roller sleeve can be rotatably supported on the support device around the roller rotation axis, wherein the support device comprises: a rotatable support device part, which is connected to the roller sleeve in a rotationally fixed manner; and a fixed support device part, which rotatably supports the rotatable support device part. The first lubricant groove and the second lubricant groove can be arranged in an inner space of the support device, and the inner space of the support device is formed in the support device. Therefore, it is conceivable to arrange the two lubricant grooves in the two support device parts in an outwardly closed manner to prevent lubricant from overflowing.

[0018] In order to achieve efficient use of the internal space available in the support device, it is proposed that the first lubricant groove is arranged substantially completely in the rotatable support device part or / and the second lubricant groove is arranged substantially completely in the fixed support device part.

[0019] For force-transmitting or torque-transmitting coupling with the roller bushing, the unbalanced mass can be rotatably supported about its unbalanced rotation axis on the rotatable support device part on which the roller bushing can also be supported.

[0020] At least one drive gear and a driven gear can be arranged in a first region of the support interior, which is essentially formed in the rotatable support part. For this purpose, it is possible (particularly if the first lubricant groove is also provided in this region) that the driven gear, which is positioned in the height direction below the roller axis of rotation, is at least partially positioned in the first lubricant groove. It should be noted in this context that when the floor processing roller rotates about its roller axis of rotation, the unbalanced mass also moves with its unbalanced axis of rotation about the roller axis of rotation and thus successively reaches such a position below the roller axis of rotation and in the first lubricant groove.

[0021] In order to ensure that the lubricant collecting unit is always positioned in an area that is higher in the height direction or above the axis of rotation of the roller, it is recommended to arrange the lubricant collecting unit on the fixed support device component and to arrange a lubricant flow connection in the fixed support device component or / and in a second area of ​​the inner space of the support device that is essentially formed in the fixed support device component.

[0022] In order to be able to easily provide a flow connection between the two lubricant grooves, it is proposed to provide a limiting element on the fixed support device part, which limits the second lubricant groove in the direction of the roller rotation axis and to provide at least one lubricant passage opening of the overflow connection in the limiting element.

[0023] In order to enable simple driving engagement of the at least one drive gear, the roller axis of rotation can pass through the lubricant through-opening or / and the lubricant through-opening can be arranged substantially concentrically with the roller axis of rotation.

[0024] In order to drive the unbalanced mass, the unbalanced transmission system comprises two drive gears and an unbalanced transmission unit, wherein at least one drive gear can be driven into rotation by the unbalanced motor via the unbalanced transmission unit.

[0025] In a particularly advantageous embodiment, one of the drive gears can be driven by the unbalanced motor via the unbalanced transmission unit to rotate about a drive gear rotation axis, which is preferably concentric with the roller rotation axis, and the other of the drive gears can be driven directly by the unbalanced motor to rotate about the drive gear rotation axis. It should be pointed out in this context that a direct drive connection means that the drive gear driven in this way is coupled to a drive assembly of the unbalanced motor for joint rotation without the possibility of a speed change or a reversal of the direction of rotation or a phase change, for which purpose, for example, a torque-transmitting shaft or the like can also be used.

[0026] The unbalanced transmission unit can be formed as a rotational position-adjusting transmission, wherein the rotational position of one of the drive gears about the drive gear rotation axis is adjustable relative to the rotational position of the other drive gear about the drive gear rotation axis by means of the unbalanced transmission unit. For example, the unbalanced transmission unit comprises a planetary transmission. It is also preferably provided for such a design that the unbalanced transmission unit itself does not cause a change in the rotational speed, or that the drive gear driven for rotation by the unbalanced transmission unit rotates at the same speed as the drive gear driven directly by the unbalanced motor. Only in the phases in which the relative rotational position of the two drive gears changes do they inevitably have temporarily different rotational speeds.

[0027] For a compact design, the unbalanced transmission unit can be arranged in a second region of the interior of the support device, which second region is substantially formed in the stationary support device part.

[0028] In order to be able to lubricate in particular the unbalanced drive unit or its components by means of the second lubricant groove, the part of the unbalanced drive unit which is located in the height direction below the roller axis of rotation is at least partially located in the second lubricant groove. It should also be taken into account that in the operating mode, due to the movement of the components of the unbalanced drive unit about the roller axis of rotation, these components can periodically reach the area of ​​the second lubricant groove and be wetted there with lubricant.

[0029] For a lubricant delivery device of simple design but still capable of effective operation, it may comprise at least one driven gear, preferably all driven gears, or / and at least one driving gear, preferably all driving gears.

[0030] For an effective conveying effect, it can further be provided that the lubricant conveying device comprises a plurality of conveying projections which are arranged on the rotatable support device part.

[0031] 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

[0032] The utility model is described in detail below with reference to the accompanying drawings. The accompanying drawings show:

[0033] Figure 1 is a side view of a ground processing machine designed as a ground compactor, the ground processing machine having a ground processing roller;

[0034] Figure 2 It is available for Figure 1 A longitudinal sectional view of a floor processing roller of a floor processing machine;

[0035] Figure 3 yes Figure 2 Axial view of the ground machining roller showing Figure 2 The cross section of

[0036] Figure 4 yes Figure 2 A magnified view of detail IV;

[0037] Figure 5 yes Figure 2 A three-dimensional, partially cutaway partial view of a floor processing roller;

[0038] Figure 6 yes Figure 2 A perspective view of a lubricant collecting element of a floor processing roller;

[0039] Figure 7 is along Figure 6 Looking from the viewing direction VII, Figure 6 An end view of a lubricant collecting element;

[0040] Figure 8 is along Figure 6 Looking from the direction VIII, Figure 6 An end view of a lubricant collecting element;

[0041] Fig. 9 is along Figure 8 The line IX-IX in the middle is cut, Figure 6 A longitudinal sectional view of a lubricant collecting element;

[0042] Fig.10 is along Figure 7 The line XX in the middle is cut open, Figure 6 Cross-sectional view of a lubricant collecting element. DETAILED DESCRIPTION

[0043] exist Figure 1 In the figure, a ground working machine designed as a ground compactor is indicated as a whole by 10. The ground working machine 10 comprises a rear vehicle 12, on which a drive device and a drive wheel 16 are arranged, and the drive wheel 16 can be driven by the drive device to move the ground working machine 10 on the ground 14. In addition, an operating console indicated as a whole by 18 is also arranged on the rear vehicle 12, from which an operator can control the ground working machine 10.

[0044] The front vehicle, which is generally indicated by 20, is articulated with the rear vehicle 12. Figure 1 The floor processing roller 22 is rotatably supported by the roller rotation axis orthogonal to the viewing plane of the front vehicle 20. The front vehicle 20 surrounds the floor processing roller 22 in the form of a frame. In its two axial end regions, the floor processing roller 22 is supported on the front vehicle 20, for example, by elastic suspension devices.

[0045] It should be noted that in Figure 1 The floor processing machine 10 shown in FIG. 1 is only one example of such a floor processing machine. For example, a floor processing roller may also be provided on the rear vehicle 12, and in particular, for a design with two floor processing rollers, at least one (preferably each) floor processing roller may be driven to rotate so that the floor processing machine 10 moves on the floor 14. Figure 1 For the floor processing machine 10 shown in the figure, the floor processing roller 22 can be driven by the roller drive motor associated therewith, thereby rotating around its roller rotation axis. However, the movement of the floor processing machine 10 on the ground 14 can also be caused only by the drive of the drive wheel 16.

[0046] Figures 2 to 5 The design of a floor-working roller 22 which can be used for the floor-working machine 10 is shown. The floor-working roller 22 comprises a cylindrical roller shell 24 which surrounds the roller axis of rotation W and surrounds a roller interior 26 or closes the roller interior 26 radially outwardly.

[0047] An unbalanced device, which is generally designated by 28, is arranged in the roller interior 26. In the illustrated design example, the unbalanced device 28 comprises two unbalanced masses 301, 302, which are arranged at a circumferential distance from one another about the roller rotation axis W or arranged opposite one another relative to the roller rotation axis W. Each unbalanced mass 301, 302 can rotate about an unbalanced rotation axis U which is parallel to the roller rotation axis W and eccentric thereto, wherein the unbalanced rotation axes U of the unbalanced masses 301, 302 preferably have the same radial spacing relative to the roller rotation axis W. The unbalanced masses 301, 302 can be driven to rotate about the respective unbalanced rotation axis U, so that the center of gravity M of the unbalanced masses 301, 302, which is located in an eccentric position relative to the respective unbalanced rotation axis U, rotates about the respective associated unbalanced rotation axis U.

[0048] In the roller interior 26, the unbalanced masses 301, 302 of the unbalanced device 28 are rotatably supported in the two axial end regions of the roller interior by corresponding bearing devices 36, 40. For this purpose, two support rings 32, 34, which are also usually referred to as disc blanks, are provided in the roller interior 26, which are arranged axially at a distance from each other along the roller rotation axis W and are fixed to the inner side of the roller shell 24 (for example by welding). Figure 2On the support ring 34 visible on the right, the unbalanced masses 301, 302 are rotatably supported via bearing units 36 on a support disk 38, which is fastened to the support ring 34, for example, by means of a screw connection. Figure 2 At the end region visible on the left, the unbalanced masses 301, 302 are rotatably supported via corresponding bearing units 40 on a support device 42, which will be referred to in particular below. Figure 4 Describe in more detail.

[0049] exist Figure 4 The support device 42, which can be seen in more detail in the figure, comprises a fixed support device part, which is designated as a whole by 44, and which is supported on the front vehicle 20, for example, by means of the elastic suspension device already mentioned above. The fixed support device part 44 is therefore not rotatable about the roller rotation axis W. In addition, the support device 44 comprises a rotatable support device part, which is designated as a whole by 46, which can be rotated about the roller rotation axis W when the floor processing roller 22 rotates.

[0050] The rotatable support device part 44 comprises a substantially disk-shaped housing part 48 which is fixed to the support ring 32 in its radial outer region (eg by screwing) and on which the unbalanced masses 301 , 302 are rotatably supported via the bearing unit 40 .

[0051] A further, substantially disk-shaped housing part 50 of the rotatable support part 46 is fixed in its radially outer region, for example by screwing, to the cylindrical projection 49 of the housing part 48. In its radially inner region, the housing part 50 is supported rotatably about the roller axis of rotation W via a bearing unit, which is designated as a whole by 52, on a housing part 54 of the fixed support part 44, which is substantially annular and extends longitudinally in the direction of the roller axis of rotation W.

[0052] An unbalanced motor 58 of an unbalanced drive 59 is supported on an end cap 56 fixed (e.g., by screwing) to a housing part 54 of a fixed support device part 44. The unbalanced motor 58 can be, for example, a hydraulic motor or an electric motor, which drives the unbalanced masses 301, 302 in a manner and method described below by means of a drive assembly 60, such as a drive pinion, so as to rotate around their respective unbalanced rotation axes U.

[0053] The first hollow shaft 62 meshes with the drive assembly 60 so that the first hollow shaft 62 can be driven by the drive assembly 60 to rotate around the roller rotation axis W. The first hollow shaft 62 meshes with a drive shaft 64, which supports a first drive gear 66 at its axial end remote from the hollow shaft 62 and is rotatably supported on the housing part 48 of the rotating support device part 46. The first drive gear 66 meshes with a driven gear 681, which is associated with or connected to the unbalanced mass block 301 so as to rotate together around its unbalanced rotation axis U. The first drive gear 66 coupled to the unbalanced motor 58 drives the unbalanced mass block 301 to rotate, and the unbalanced motor 58 rotates directly around the drive gear rotation axis A corresponding to the roller rotation axis W through the first hollow shaft 62 and the drive shaft 64.

[0054] The first hollow shaft 62, at its axial end remote from the unbalanced motor 58 and coupled for co-rotation with the drive shaft 64, forms a first sun gear 70 of an unbalanced transmission unit, which is designed as a planetary gear and is denoted overall by 72. A second sun gear 76 of the unbalanced transmission unit 72 is formed at its axial end adjacent to the first sun gear 70 on a second hollow shaft 74 surrounding the drive shaft 64.

[0055] At the planetary gear support device 78, which annularly surrounds the roller rotation axis W, a plurality of sets of planetary gears 80, 82 are rotatably supported, which are adjacent to each other in the axial direction and are respectively associated with the sun gears 70, 76. A set of planetary gears 80 meshing with the first sun gear 70 is associated with a first hollow wheel element 86 which surrounds the planetary gears and provides a first hollow wheel 84. The planetary gears 82 meshing with the second sun gear 76 are associated with a second hollow wheel 88, which meshes with the second sun gear 76 at a second hollow wheel element 90. When the second hollow wheel element 90 is fixedly (in particular rotationally fixedly) supported on the housing part 54 of the fixed support device part 44, the first hollow wheel element 86 is disposed in the second hollow wheel element 90 by Figure 5 The servo drive 92 shown in FIG. 8 is supported rotatably relative to the second hollow wheel element 90 about the roller rotation axis W. The servo drive 92 can include, for example, a worm gear drive which cooperates with the first hollow wheel element 86 .

[0056] At its axial end remote from the second sun gear 76, the second drive gear 94 is connected to the second hollow shaft 74 in a rotationally fixed manner. The second drive gear 94 is directly adjacent to the first drive gear 66 in the axial direction and meshes with the driven gear 682 associated with the unbalanced mass 302.

[0057] If the first hollow shaft 62, which also directly drives the drive shaft 64, is driven by the unbalanced motor 58 so as to rotate around the drive gear rotation axis A corresponding to the roller rotation axis W, then since in the design example of the unbalanced transmission unit 72 shown, the two sun gears 70, 76, the two hollow gears 84, 88 and the planetary gears 80, 82 have the same diameter as each other, the rotation of the drive component 60 is transmitted to the second drive gear 94 without changing the rotation speed, and the second drive gear 94 drives the unbalanced mass block 302 to rotate at the same rotation speed and rotation direction, and the unbalanced mass block 301 also rotates at this speed and rotation direction.

[0058] If the phases of the unbalanced masses 301, 302 rotating at the same speed change relative to each other, the first hollow wheel element 86 rotates about the roller rotation axis W, which causes the rotation speed of the second hollow shaft 74 to change relative to the rotation speed of the first hollow shaft 62 during the rotational movement, and accordingly also causes a temporary change in the rotation speed of the unbalanced mass 302 driven by the second drive gear 94. This also causes the phase of the center of gravity M of the unbalanced mass 302 to change relative to the phase of the center of gravity M of the unbalanced mass 301. When the change in phase reaches the desired extent, the rotational movement of the first hollow wheel element 84 ends, so that the two unbalanced masses 301, 302 rotate at the same speed again thereafter.

[0059] By adjusting the phase of the center of gravity M of the two unbalanced masses 301, 302, the unbalanced device 28 can be switched between different operating states. The two unbalanced masses 301, 302 are arranged so that Figure 2 As can be seen in FIG. 1 , their centers of gravity M have the same phase, and therefore the force vectors that appear in the unbalanced masses 301, 302 and are orthogonal to the respective unbalanced rotation axis U are parallel to each other and oriented in the same direction. These forces are structurally superimposed on each other, so that in each rotational position of the unbalanced masses 301, 302, a force orthogonal to the roller rotation axis W acts on the floor processing roller 22, and thus the unbalanced device 28 operates in a vibration mode. If the phase of the center of gravity M is changed from the unbalanced mass blocks 301, 302 by relatively rotating the unbalanced mass blocks 301, 302 to the unbalanced mass blocks 301, 302, the unbalanced device 28 operates in a vibration mode. Figure 2The unbalanced device 28 is changed by 180° from the position without phase shift shown in the figure, so that the center of gravity M of the unbalanced mass blocks 301 and 302 has a phase deviation of 180°, and the forces of the unbalanced mass blocks 301 and 302 in the rotation mode are superimposed, so that a torque with a periodic change in direction is applied to the floor processing roller 22 around the roller rotation axis W. In this state, the unbalanced device 28 works in the oscillation mode. Therefore, by acting on the unbalanced transmission unit 72, the phase of the center of gravity M of the unbalanced mass blocks 301 and 302 is changed between the two aforementioned relative positions, so that the unbalanced device 28 can be switched between the vibration mode and the oscillation mode.

[0060] It should be noted that the unbalanced device 28 can also be constructed with a different number of unbalanced masses. For example, four unbalanced masses can be arranged relative to each other at an angular spacing of 90° around the roller rotation axis W, wherein the unbalanced masses that are oppositely disposed relative to each other with respect to the roller rotation axis W each form an unbalanced mass pair, wherein the two unbalanced masses are each driven by one of the two drive gears so as to rotate together, i.e., at the same speed and in the same direction of rotation. By acting on the unbalanced transmission unit 72, the phase position of the centers of gravity of the two unbalanced mass pairs can be changed relative to each other, so that the magnitude and orientation of the forces that are oriented substantially orthogonally to the roller rotation axis W in the rotation mode of the unbalanced masses change in the vibration mode of the unbalanced device 28.

[0061] In order to realize this rotational movement of the unbalanced masses 301, 302, the unbalanced transmission unit 72, the drive gears 66, 94 and the driven gears 681, 682 driven in rotation by them form an unbalanced transmission system of the unbalanced drive device 59, which is indicated as a whole by 96. In order to protect the various rotating and mutually meshing components of the unbalanced transmission system 96 and the bearing units supporting these components from excessive wear, a liquid lubricant, such as oil or the like, is contained in the support device interior space 98 formed in the support device 42. In order to seal the support device interior space 98 against lubricant leakage, on the one hand, a sealing unit 100 is assigned to the unbalanced masses 301, 302, which seals against liquid leakage relative to the housing part 48 of the rotating support device part 46. The rotating support device part 46 is sealed and closed relative to the fixed support device part 44 by the sealing unit 101.

[0062] The support device interior space 98 includes a first region 102, which is essentially constructed in the rotatable support device part 46, especially with regard to its axial expansion, and is confined between the housing parts 48, 50. The first region 102 of the support device interior space 98 also includes two drive gears 66, 94 and driven gears 681, 682.

[0063] Furthermore, the support device interior 98 also comprises a second region 104 which is substantially formed in the fixed support device part 44, in particular with regard to its axial expansion, and is delimited radially outwards by the housing part 54 and axially by the end cap 56 which supports the unbalanced motor 58. On the second hollow wheel element 90 which is fixedly supported on the housing part 54, at the axial end facing the first region 102 of the support device interior 98, a disk-shaped limiting element 106 is supported, which has a lubricant through-hole 108 which is coaxial with the roller rotation axis W, for example.

[0064] In the support device 42, a first lubricant groove 110 is formed substantially in the first region 102 of the support device interior 98, and a second lubricant groove 112 is formed substantially in the second region 104 of the support device interior 98. For the non-rotating floor processing roller 22 and the unbalanced masses 301, 302 that are not driven in rotation, the lubricant reaches a first lubricant groove level N1 in the first lubricant groove 110. Due to the effect of gravity, the first lubricant groove level N1, which is located substantially below the roller rotation axis W in the height direction H, has a first distance D1 to the roller rotation axis W in this height direction H.

[0065] The second lubricant groove 112 has a second lubricant groove level N2, which is defined essentially by the lubricant through-hole 108 that also provides the overflow connection 114 or its region that has the greatest distance from the roller rotation axis W in the height direction H downwards. Figure 4 As can be clearly seen, the second distance D2 of the second lubricant groove level N2 to the roller rotation axis W is smaller than the distance D1 of the first lubricant groove level to the roller rotation axis W. Since there is no flow connection between the second lubricant groove 112 and the first lubricant groove 110 except for the lubricant through-hole 108 which essentially provides an overflow connection 114, the second lubricant groove 112 is essentially always filled with lubricant to the second lubricant groove level N2 or to the lowest area of ​​the lubricant through-hole 108 in the height direction H.

[0066] In the rotation mode of the floor processing roller 22 and in particular when the unbalanced masses 301, 302 are driven in rotation, the unbalanced masses 301, 302 arranged at a radial distance from the roller rotation axis W and connected thereto for co-rotation are successively moved in the region of the first lubricant groove 110 or through this region. In this case, not only the unbalanced masses 301, 302 of the driven gears 681, 682 that are moved through the region of the first lubricant groove 110 or driven by the driven gears 681, 682 are moved into or through the first lubricant groove 110 and are wetted with lubricant, but also, by in particular the rotation of the driven gears 681, 682, the lubricant is thrown from the first lubricant groove 110 substantially into the entire volume of the first region 102 of the support device interior space 98 and in particular also upwards in the height direction H. Furthermore, due to the contact with the driven gears 681, 682, the drive gears 66, 94 meshing with the driven gears 681, 682 contribute to flinging the lubricant into the first region 102 of the support device interior 98 and in particular also flinging the lubricant upwards in the height direction H. Therefore, the driven gears 681, 682 and, if applicable, the drive gears 66, 94 moving through the first lubricant groove 110 essentially form a lubricant conveying device 116, by which the lubricant from the first lubricant groove 110 is distributed in the first region 102 of the support device interior 98 and conveyed upwards in the height direction H, such as by Figure 4 As indicated by the arrow in .

[0067] Furthermore, in order to distribute the lubricant substantially over the entire volume of the first region 102 of the support device interior 98, on the side of the component 50 of the rotating support device part 46 facing the first region of the support device interior 98, there are provided conveying blades which are arranged one behind the other in the circumferential direction and extend approximately in the radial direction. Figure 5 115 can be seen in the drawing. When the floor processing roller 22 rotates, the conveying protrusions 115 move through the first lubricant groove 110 and carry the lubricant upwards, which then drips from above onto the components located above the first lubricant groove 110. These conveying protrusions 115, which help to increase the heat dissipation, are therefore formed as part of the lubricant conveying device 116.

[0068] A lubricant collecting unit, generally designated 118, is arranged on the fixed support device part 44, in particular the housing part 54, and is located in the region above the roller rotation axis W in the height direction H. The lubricant collecting unit includes the lubricant collecting unit hereinafter referred to as Figures 6 to 10The lubricant collecting element 120 described in detail and fixed to the housing part 50 (for example by screwing) is open essentially in the height direction H upward and can collect lubricant that collects in the upper region of the first region 102 of the support device interior 98 or drips there. The lubricant collected by the lubricant collecting element 120 reaches the second region 104 of the support device interior 98 and thus reaches the second lubricant groove 112 essentially formed in this second region 104 via a channel-like lubricant flow connection 122, which is particularly formed in the housing part 54 of the fixed support device part 44 and also, for example, in the second hollow wheel element 90.

[0069] If, in the stationary state, the first lubricant groove 110 is filled with lubricant until the first lubricant groove level N1 is reached, then in the rotating mode, the level of the first lubricant groove 110 drops below the first lubricant groove level N1 existing in the stationary state, due to the lubricant being thrown into the upper part of the first region 102 of the support device interior 98 and the lubricant partially flowing into the second region 104 of the support device interior 98 via the lubricant flow connection 122, but not to such an extent that the components of the lubricant delivery device 116 that move through the first lubricant groove 110 can no longer be adequately wetted. However, the filling state of the second lubricant groove 112 always substantially corresponds to the second lubricant groove level N2.

[0070] In the operating mode, i.e. during the rotation of the floor processing roller 22 and in particular during the rotation of the unbalanced masses 301, 302, the components of the unbalanced transmission unit 72 which are substantially accommodated in the second region 104 of the support interior 104 move through the second lubricant groove 112. The components are in particular the two hollow wheels 84, 88, the planetary gear support 78 and the planetary gears 80, 82 rotatably supported thereon. As a result, all regions of the unbalanced transmission unit 72 are successively contacted with the lubricant present in the second lubricant groove 112. In addition, the sun gears 70, 76 are also wetted with lubricant by contact with the planetary gears 80, 82.

[0071] By continuously conveying lubricant from the first lubricant groove 110 into the second lubricant groove 112 by means of the lubricant conveying device 116, it is ensured that the portion of the lubricant conveyed into the second region 104 of the support device interior 98, which would result in the second lubricant level N2 being exceeded, leads to a continuous outflow of lubricant from the second lubricant groove 112 or the second region 104 of the support device interior 98 through the overflow connection 114 or the lubricant through-hole 108 into the first lubricant groove 110. A lubricant circulation is thus established, wherein the conveying action or centrifugal action of the drive gears 66, 94, the driven gears 681, 682, 683 and the conveying projections 115 ensures that all components present in the first region 102 of the support device interior 98, in particular components of the unbalanced transmission system 96, are wetted with lubricant. This also applies in particular to bearing units present in this region and serving as supporting rotating system components. A portion of the lubricant distributed in the first region 102 of the support device interior 98 reaches the second region 104 of the support device interior 98 and the second lubricant groove 112 arranged there via the lubricant collecting element 120 and the lubricant flow connection 122, and is thus used to fully lubricate the unbalanced transmission unit 72. Due to the cascade arrangement of the two lubricant grooves 110, 112, it is ensured that the lubricant can be reliably distributed to components that are located at significantly different levels in the height direction H or move in these regions.

[0072] exist Figures 6 to 10 The lubricant collecting element 120 shown in the embodiment shown, which is essentially trough-shaped, has two end walls 124, 126 and a bottom wall element 128 arranged therebetween. The bottom wall element 128 closes the lubricant collecting element 120 in the height direction downwards or also in the side direction, which is essentially open upwards in the height direction H. The end walls 124, 126 and the bottom wall element 128 can be held together by screws, which penetrate the end walls and the bottom wall element, for example, through openings 129, 131 and fix the lubricant collecting element 120 to the housing part 50.

[0073] In the end wall 124, which is located adjacent to the fixed support device part 44, a through hole 130 is formed, through which the lubricant collected in the lubricant collecting element 120 can flow into the lubricant flow connection 122. It should be pointed out that, by a suitable structural design, the end wall 124 can also be provided directly by the fixed support device part 44, or / and the lubricant collecting element 120 can also be constructed in one piece, for example as a cast element.

[0074] In order to achieve an improved collection effect of the lubricant collecting element 120 in a relatively compact design, the end wall 126 away from the fixed support device part 44 can be bent in the direction away from the fixed support device part 44 - in the area where it extends upward in the height direction H beyond the bottom wall element 128 - so as to further support the funnel-shaped design of the lubricant collecting element 120.

[0075] Finally, it should be noted that in the support device 42, in particular, Figure 4 As can be seen in FIG. 1 , openings which are closed by the closure element 132 can be formed in different regions, through which openings lubricant can be filled into the support device interior 98 or discharged from the support device interior 98 .

Claims

1. Ground processing roller, including: - a roller sleeve (24), which is rotatable about the roller rotation axis (W) and surrounds the roller interior space (26); - an unbalance device (28) having a plurality of unbalanced masses arranged at a circumferential distance from one another around the roller rotation axis (W), wherein each unbalanced mass can be driven to rotate around an unbalanced rotation axis (U) corresponding to the unbalanced mass; - an unbalanced drive device (59) with an unbalanced motor (58) and an unbalanced transmission system (96), wherein the unbalanced transmission system (96) includes at least one drive gear and a driven gear associated with each unbalanced mass, the drive gear being drivable for rotation by the unbalanced motor (58), the driven gear being connected to the unbalanced mass for common rotation, wherein each drive gear is coupled to at least one driven gear for torque transmission; a first lubricant groove (110) arranged below the roller rotation axis (W) in the height direction (H), wherein the first lubricant groove (110) is filled or can be filled with lubricant until a first lubricant groove level (N1) is reached at a first distance (D1) in the height direction (H) relative to the roller rotation axis (W); a second lubricant groove (112) arranged below the roller rotation axis (W) in the height direction (H), wherein the second lubricant groove (112) is filled or can be filled with lubricant until a second lubricant groove level (N2) having a second distance (D2) in the height direction (H) relative to the roller rotation axis (W), wherein the second distance (D2) is smaller than the first distance (D1); - a lubricant conveying device (116) for conveying lubricant from the first lubricant groove (110) to the second lubricant groove (112); - an overflow connection (114) located between the first lubricant groove (110) and the second lubricant groove (112), wherein in a delivery mode of the lubricant delivery device (116), when a second lubricant groove level (N2) in the second lubricant groove (112) is reached or / and exceeded, lubricant flows from the second lubricant groove (112) via the overflow connection (114) into the first lubricant groove (110).

2. The floor processing roller according to claim 1, characterized in that: At least one driving gear is meshed with at least one driven gear, or / and at least one driven gear is connected to an unbalanced mass block associated therewith so as to rotate together around an unbalanced rotation axis (U) of the unbalanced mass block, or / and the unbalanced rotation axis (U) of at least one unbalanced mass block is eccentric or / and parallel to the roller rotation axis (W).

3. The floor processing roller according to claim 1, characterized in that: Each driving gear is meshed with at least one driven gear, or / and each driven gear is connected to the unbalanced mass block associated therewith so as to rotate together around the unbalanced rotation axis (U) of the unbalanced mass block, or / and the unbalanced rotation axis (U) of each unbalanced mass block is eccentric or / and parallel to the roller rotation axis (W).

4. The floor processing roller according to any one of claims 1 to 3, characterized in that: A lubricant collecting unit (118) is arranged above the roller rotation axis (W) along the height direction (H) and is upwardly opened along the height direction (H), and a lubricant flow connection portion (122) is arranged between the lubricant collecting unit (118) and the second lubricant groove (112) so as to guide the lubricant collected in the lubricant collecting unit (118) to the second lubricant groove (112).

5. The floor processing roller according to claim 4, characterized in that: The lubricant collecting unit (118) includes a trough-shaped lubricant collecting element (120).

6. The floor processing roller according to claim 5, characterized in that: The lubricant collecting element (120) expands upward in a funnel shape along the height direction.

7. The floor processing roller according to any one of claims 1 to 3, characterized in that: The roller sleeve (24) is rotatably supported on a support device (42) around the roller rotation axis (W), wherein the support device (42) includes: a rotatable support device component (46) which is non-rotatably connected to the roller sleeve (24); and a fixed support device component (44) which is rotatably supported by the rotatable support device component (46), wherein the first lubricant groove (110) and the second lubricant groove (112) are arranged in a support device internal space (98), and the support device internal space (98) is formed in the support device (42).

8. The floor processing roller according to claim 7, characterized in that: The first lubricant groove (110) is completely arranged in the rotatable support device part (46), or / and the second lubricant groove (112) is completely arranged in the fixed support device part (44).

9. The floor processing roller according to claim 7, characterized in that: The unbalanced mass is supported on the rotatable support part (46) so as to be rotatable about its unbalanced rotation axis (U).

10. The floor processing roller according to claim 7, characterized in that: The at least one drive gear and the driven gear are arranged in a first region (102) of the support device interior space (98), the first region (102) being formed in the rotatable support device part (46).

11. The floor processing roller according to claim 8, characterized in that: The at least one driving gear and the driven gear are arranged in a first area (102) of the internal space (98) of the support device, the first area (102) is formed in the rotatable support device part (46), and the driven gear positioned below the roller rotation axis (W) along the height direction (H) is at least partially positioned in the first lubricant groove (110).

12. The floor processing roller according to claim 4, characterized in that: The roller sleeve (24) is rotatably supported on a support device (42) around the roller rotation axis (W), wherein the support device (42) includes: a rotatable support device component (46) which is non-rotatably connected to the roller sleeve (24); and a fixed support device component (44) which rotatably supports the rotatable support device component (46), wherein the first lubricant groove (110) and the second lubricant groove (112) are arranged in a support device internal space (98), the support device internal space (98) is formed in the support device (42), the lubricant collecting unit (118) is arranged on the fixed support device component (44), and the lubricant flow connection (122) is formed in the fixed support device component (44) or / and in a second area (104) of the support device internal space (98), the second area (104) is formed in the fixed support device component (44).

13. The floor processing roller according to claim 12, characterized in that: A limiting element (106) is provided on the fixed support device component (44), the limiting element (106) limiting the second lubricant groove (112) in the direction of the roller rotation axis (W), and at least one lubricant through hole (108) of the overflow connection (114) is provided in the limiting element (106).

14. The floor processing roller according to claim 13, characterized in that: The roller rotation axis (W) passes through the lubricant through hole (108), or / and the lubricant through hole (108) is arranged to be concentric with respect to the roller rotation axis (W).

15. The floor processing roller according to any one of claims 1 to 3, characterized in that The unbalanced transmission system (96) includes two driving gears and an unbalanced transmission unit (72), and at least one of the driving gears can be driven to rotate by the unbalanced motor (58) via the unbalanced transmission unit (72).

16. The floor processing roller according to claim 15, characterized in that: One of the drive gears can be driven by the unbalanced motor (58) via the unbalanced transmission unit (72) to rotate about a drive gear rotation axis (A), and the other of the drive gears can be directly driven by the unbalanced motor (58) to rotate about the drive gear rotation axis (A).

17. The floor processing roller according to claim 16, characterized in that: The drive gear rotation axis (A) is concentric with the roller rotation axis (W).

18. The floor processing roller according to claim 16, characterized in that: The unbalanced transmission unit (72) is formed as a rotational position-adjusting transmission device, wherein, via the unbalanced transmission unit (72), the rotational position of one of the drive gears around the drive gear rotation axis (A) is adjustable relative to the rotational position of another of the drive gears around the drive gear rotation axis (A).

19. The floor processing roller according to claim 18, characterized in that: The unbalanced transmission unit (72) comprises a planetary transmission.

20. The floor processing roller according to claim 7, characterized in that: The unbalanced transmission system (96) comprises two drive gears and an unbalanced transmission unit (72), and at least one of the drive gears can be driven by the unbalanced motor (58) to rotate via the unbalanced transmission unit (72), and the unbalanced transmission unit (72) is arranged in a second area (104) of the inner space (98) of the support device, and the second area (104) is formed in the fixed support device component (44).

21. The floor processing roller according to claim 20, characterized in that The first lubricant groove (110) is completely arranged in the rotatable support device component (46), or / and the second lubricant groove (112) is completely arranged in the fixed support device component (44), and the part of the unbalanced transmission unit (72) positioned below the roller rotation axis (W) along the height direction (H) is at least partially positioned in the second lubricant groove (112).

22. The floor processing roller according to any one of claims 1 to 3, characterized in that The lubricant delivery device (116) comprises: at least one driven gear and / or at least one driving gear.

23. The floor processing roller according to claim 22, characterized in that The lubricant delivery device (116) includes all driven gears and / or all driving gears.

24. The floor processing roller according to claim 8, characterized in that The lubricant delivery device (116) comprises a plurality of delivery protrusions (115) arranged on the rotatable support device part (46).

25. Ground working machine comprising at least one ground working roller (22) according to any one of claims 1 to 24.

26. The floor processing machine according to claim 25, characterized in that The soil processing machine is a soil compactor.

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