Soil-processing roller

Abstract

A soil-processing roller for a soil-processing machine includes a roller sleeve extending longitudinally in the direction of a roller axis of rotation, surrounding the roller axis of rotation, a first drive transmission element connected or connectable such that it can rotate to a rotor region of a roller drive motor for combined rotation about the roller axis of rotation, a first roller sleeve connecting element connected to the first drive transmission element by means of a plurality of first elastic suspension elements and to the roller sleeve for combined rotation about the roller axis of rotation, a second drive transmission element arranged at an axial distance to the first drive transmission element and connected by means of a drive transmission element connection arrangement to the first drive transmission element for torque transmission and a second roller sleeve connecting element connected to the second drive transmission element by means of a plurality of second elastic suspension elements and connected firmly so that it can rotate to the roller sleeve for combined rotation about the roller axis of rotation.

Claims

1. Soil-processing roller for a soil-processing machine, comprising: A roller sleeve extending in the direction of a roller axis of rotation surrounding the roller axis of rotation, A first drive transmission element connected to a rotor region of a roller drive motor for a combined rotation about the roller axis of rotation therewidth, A first roller sleeve connecting element connected to the first drive transmission element by means of a plurality of first elastic suspension elements and connected firmly so that it can rotate to the roller sleeve for combined rotation about the roller axis of rotation, A second drive transmission element arranged at an axial distance to the first drive transmission element and connected by means of a drive transmission element connection arrangement to the first drive transmission element for torque transmission, and A second roller sleeve connecting element connected to the second drive transmission element by means of a plurality of second elastic suspension elements and connected to the roller sleeve for a combined rotation about the roller axis of rotation therewith.

2. Soil-processing roller according to claim 1, wherein the first drive transmission element and/or the second drive transmission element and/or the first roller sleeve connecting element and/or the second roller sleeve connecting element is formed disc-shaped.

3. Soil-processing roller according to claim 1, wherein in the direction of the roller axis of rotation, between the first drive transmission element and the second drive transmission element, a vibration mechanism with at least one out-of-balance mass is arranged so that it can rotate about an out-of-balance axis of rotation and supported on the roller sleeve.

4. Soil-processing roller according to claim 1, wherein a uniform suspension characteristic in both suspension regions is supported in that the first elastic suspension elements are arranged following one after the other in the circumferential direction around the roller axis of rotation, and that the second elastic suspension elements are arranged sequentially in the circumferential direction about the roller axis of rotation.

5. Soil-processing roller according to claim 1, wherein a quantity of the first elastic suspension elements corresponds to a quantity of the second elastic suspension elements and/or that the first elastic elements and the second elastic elements are arranged with the same arrangement pattern in relation to the roller axis of rotation and/or that the first elastic suspension elements and the second elastic suspension elements are arranged reflection-symmetrically in relation to a roller axis of rotation in a substantially orthogonal plane of symmetry.

6. Soil-processing roller according to claim 1, wherein an axial distance of the first drive transmission element and an axial distance of the second drive transmission element to a longitudinal center of the roller sleeve to each other are substantially equal, and/or that an axial distance of the first roller sleeve connecting element and an axial distance of the second roller sleeve connecting element to the longitudinal center of the roller sleeve to each other are substantially equal.

7. Soil-processing roller according to claim 1, wherein the drive transmission element connection arrangement comprises a plurality of connecting members arranged mutually spaced in the circumferential direction about the roller axis of rotation, substantially extending in the direction of the roller axis of rotation and rigidly connected to the first drive transmission element and the second drive transmission element.

8. Soil-processing roller according to claim 7, wherein at least one connecting member is formed as a hollow section part and/or is connected removably with at least one drive transmission element.

9. Soil-processing roller according to claim 7, wherein, on the roller sleeve at least one supporting disc is provided and at least one supporting disc is allocated to at least one connecting member exhibits a connecting member lead-through recess taking up the connecting member with movement clearance, and/or that the connecting member is arranged radially inside the roller sleeve connecting elements and with radial distance from the roller sleeve connecting elements.

10. Soil-processing roller according to claim 1, wherein the second drive transmission element is connected or connectable such that it can rotate with a rotor region of a roller bearing unit for combined rotation about the roller axis of rotation.

11. Soil-processing roller according to claim 10, wherein, in the direction of the roller axis of rotation, between the first drive transmission element and the second drive transmission element, a vibration mechanism with at least one out-of-balance mass is arranged so that it can rotate about an out-of-balance axis of rotation and supported on the roller sleeve, and further wherein a stator region of an unbalanced drive motor is firmly connected to a stator region of the roller bearing unit, and a rotor region of the unbalanced drive motor is connectable to the at least one out-of-balance mass by a drive shaft.

12. Soil-processing machine comprising a soil-processing roller supported on a machine frame such that it can rotate about a roller axis of rotation, the soil-processing roller including: A roller sleeve extending in the direction of the roller axis of rotation surrounding the roller axis of rotation, A first drive transmission element connected to a rotor region of a roller drive motor for a combined rotation about the roller axis of rotation therewith, A first roller sleeve connecting element connected to the first drive transmission element by means of a plurality of first elastic suspension elements and connected firmly so that it can rotate to the roller sleeve for combined rotation about the roller axis of rotation, A second drive transmission element arranged at an axial distance to the first drive transmission element and connected by means of a drive transmission element connection arrangement to the first drive transmission element for torque transmission, and A second roller sleeve connecting element connected to the second drive transmission element by means of a plurality of second elastic suspension elements and connected to the roller sleeve for a combined rotation about the roller axis of rotation therewith.

13. Soil-processing machine according to claim 12, wherein a rotor region of a roller drive motor is connected firmly such that it can rotate to the first drive transmission element for combined rotation about the roller axis of rotation, and a stator region of the roller drive motor is fastenable to a first longitudinal member of the machine frame extending in a longitudinal direction of the machine.

14. Soil-processing machine according to claim 12, wherein the second drive transmission element is connected or connectable such that it can rotate with a rotor region of a roller bearing unit for combined rotation about the roller axis of rotation, and wherein a stator region of the roller bearing unit is fastened to a second longitudinal member of the machine frame extending in the longitudinal direction of the machine.

15. Soil-processing machine according to claim 12, wherein the machine frame with the soil-processing roller supported such that it can rotate about the roller axis of rotation is provided with a front end, wherein the front end is connected by means of a steering linkage arrangement to a rear end such that it can be swivelled about a steering axle, and wherein on the rear end a drive unit is supplied to provide the drive energy for the roller drive motor.

Description

(1) The present invention will be described in detail in the following in relation to the appended figures. In which:

(2) FIG. 1 shows a soil compactor known from the prior art;

(3) FIG. 2 shows a soil-processing roller of the soil compactor of FIG. 1 in a longitudinal cross-section;

(4) FIG. 3 shows a soil-processing roller constructed according to the invention in longitudinal cross-section;

(5) FIG. 4 shows a perspective, transparent view of a roller sleeve of the soil-processing roller of FIG. 3 with the supporting discs provided thereon

(6) FIG. 5 shows a perspective of a drive cage of the soil-processing roller of FIG. 3;

(7) FIG. 6 shows a front end of a soil-processing machine with the soil-processing roller of FIG. 3 sometimes shown open.

(8) In the following, with reference to FIGS. 3 to 6, the structure of a soil-processing roller constructed according to the invention and/or a soil-processing machine equipped with it, for example, a soil compactor, is described. In the following description, components or modules that correspond with respect to the structure and/or function above with reference to FIGS. 1 and 2 are designated with the same reference numbers. Furthermore, it is to be noted that the fundamental structure of a soil-processing machine, so, for example, a soil compactor, in which the soil-processing roller constructed according to the invention may be used, may correspond to the structure described above with reference to FIG. 1. Therefore, in the context of the structure according to the invention of a soil-processing machine, reference may be made to the general description of the soil-processing machine 10 illustrated in FIG. 1.

(9) FIG. 3 shows, in a way corresponding to FIG. 2, a longitudinal cross-section of a soil-processing roller 16 constructed according to the invention. This too comprises a roller sleeve 36. This is formed in the illustrative example shown in FIG. 3 with a smooth, enclosed circumferential contour and therefore is particularly suitable for compacting the ground. If, for example, with such a soil-processing roller 16 solid ground is to be broken up, the roller sleeve 36 may be formed with a structured and/or open circumferential contour.

(10) Inside the roller sleeve 36 two supporting discs 74 and/or 74′ are provided at a mutual axial distance, on which the housings 70, 80, already described above also with reference to FIG. 2, of the vibration mechanism 72 are supported. Inside the housings 70, 80, the out-of-balance masses 78, 82, for example, are supported so that they can rotate about the roller axis of rotation D.

(11) A stator region 40 of a roller drive motor 42, also formed here, for example, as a hydraulic motor, is supported on the mounting plate 38 and by this onto the longitudinal member 28 of the machine frame 14. A rotor region 44 of the roller drive motor 42 supports a first drive transmission element 46 formed as an annular disc. This is, for example, fastened by screwing onto the rotor region 44.

(12) In the radially external region, the first drive transmission element 46 is, for example, connected by screwing to several first elastic suspension elements 48 arranged sequentially in the circumferential direction. In turn, these are, for example, connected by screwing to a first roller sleeve connecting element 50 formed as an annular disc and/or may be held by screwing between the first drive transmission element 46 and the second roller sleeve connecting element 50. FIG. 4 shows the fastening protrusions 52 provided on the inside of the roller sleeve 36 at several circumferential positions, in which region the first roller sleeve connecting element 50 can be connected by screwing to the roller sleeve 36.

(13) In the end region of the soil-processing roller 16 illustrated on the right in FIG. 3, a second drive transmission element 46′ is provided formed as a disc or an annular disc. In its radially internal region, the second drive transmission element 46′ is firmly connected, for example, by screwing to a rotor region 68 of a roller bearing unit 66. A stator region 64 of the roller bearing unit 66 is fastened by an annular support 84 to the mounting plate 39 and supported by this, for example, on the longitudinal member 26 of the machine frame 14.

(14) In its radially external region, the second drive transmission element 46′ is connected by a plurality of two elastic suspension elements 62 to a second annular disc-shaped roller sleeve connecting element 50′. Even in this case, for example, the sequential second elastic suspension elements 62 in the circumferential direction may be connected by screwing to the second drive transmission element 46′ and the second roller sleeve connecting element 50′ and/or held between them. The second roller sleeve connecting element 50′ may be fastened by screwing to several fastening protrusions 52′ provided on the internal circumference of the roller sleeve 36, so that also in the axial end region shown in FIG. 3 on the right, the soil-processing roller 16 is suspended elastically.

(15) It can be seen that in both axial end regions the modules provided for suspending the soil-processing roller 16, therefore particularly the roller sleeve connecting elements 50, 50′, the elastic suspension elements 48, 62 and the drive transmission elements 46, 46′ are constructed essentially the same as each other and particularly are arranged at the same distance from a plane of symmetry E defining a longitudinal center of the soil-processing roller 16 and/or the roller sleeve 36, orthogonal to the roller axis of rotation D. The consequence of this is that in both suspension regions, suspension characteristics that are actually identical to each other may be provided. This symmetrical suspension characteristic may be supported in that the first and second elastic suspension elements 48, 62 are provided with arrangement patterns that are respectively identical to each other. This means that the sequence of the first elastic suspension elements 48 and the second elastic suspension elements 62 may correspond to each other in the circumferential direction, therefore identical circumferential distances and/or equal variations in the circumferential distance of suspension elements arranged, for example, in groups G with a small circumferential distance between sequential suspension elements, and also the distance to the roller axis of rotation D is selected as the same. Particularly, the first elastic suspension elements 48 and the second elastic suspension elements 62 are arranged in relation to the plane of symmetry E reflection-symmetrical to each other.

(16) Both drive transmission elements 46, 46′ are rigidly connected by a drive transmission element connection arrangement generally designated with 86 for torque transmission. The drive transmission element connection arrangement 86 clearly recognisable in FIG. 5 comprises several, four in the example illustrated, connecting members 88 sequential in the circumferential direction. These may, as indicated in FIG. 3, be constructed as hollow section parts closed in their axial end regions. In their axial end regions, the connecting members 88 are connected for provision of a fundamentally removable, but also rigid connection to the two drive transmission elements 46, 46′, for example, respectively by several screwed bolts 90 to the drive transmission elements 46, 46′ and from a drive cage 100 together with these.

(17) The connecting members 88 are positioned in such a way that they are positioned radially inside the annular-disc formed and rigidly connected to the roller sleeve 36 roller sleeve connecting elements 50, 50′. Also to avoid a mutual disruption with the supporting discs 74, 74′ provided in the further centrally-situated region of the roller sleeve 36, in this, lead-through holes 92 offset from the connecting members 88 with movement clearance may be provided. The size of these lead-through holes 92 on the one hand and the positioning of the connecting members 88 in relation to the roller sleeve connecting elements 50, 50′ on the other hand are selected in such a way that also considering the greatest possible relative movement of the roller sleeve 36 permitted in relation to the drive transmission elements 46, 46′ and/or the connecting members 88 due to the elastic property of the suspension elements 48, 62, mutual contact of the connecting members 88 with the roller sleeve connecting elements 50, 50′ and the supporting discs 74, 74′ cannot occur.

(18) Furthermore, it can be seen in FIG. 3 that at the stator region 64 of the roller bearing unit 66 a stator region 94 of an unbalanced drive motor 76 is fastened. A rotor region 96 of the unbalanced drive motor 76 drives, for example, by a drive shaft 98 formed as a propeller shaft, both out-of-balance masses 78, 82 of the vibration arrangement 72. Therefore, the unbalanced drive motor 76 is also supported on the rigid system region of the soil-processing roller 16 in relation to the machine frame 14 and is not supported on the system region suspended elastically with the roller sleeve 36. Even this contributes to a uniform weight distribution, particularly in the elastically-suspended system region of the soil-processing roller 16.

(19) It is to be pointed out that obviously by using the principles of the present invention on such a soil-processing roller 16, the most diverse structural variations may arise. So, for example, the drive transmission connection arrangement 86 may exhibit a different quantity of connecting members 88. Also, the elastic suspension of the roller sleeve 36 may be done at more than two regions arranged at an axial distance and preferably symmetrically arranged in relation to a longitudinal center region, this defined by a plane of symmetry E. So, for example, in the central region of the soil-processing roller 16 a further drive transmission element may be arranged which is connected by a further roller sleeve connecting element to the roller sleeve and to this by further elastic suspension elements. This centrally-arranged drive transmission element may be rigidly connected by respectively-segmented connecting members to the drive transmission element 46 position to the left of it in FIG. 3 and the drive transmission element 46′ positioned to the right of it in FIG. 3, so that, as this is also the case in the illustrative example of FIG. 3, to provide an inherently rigid drive cage 100 by which in both axial end regions the soil-processing roller 16 is supported so that it can rotate with respect to the machine frame with suspension formations that are essentially of identical construction.