Surface processing machine and supporting mechanism

Abstract

The present invention relates to a ground processing machine and a support structure. The ground processing machine includes a support structure and an operating assembly, and the operating assembly is rotatably supported by means of a first rotating bearing and a rotating bearing device. The rotating bearing device has a second rotating bearing, a bearing configuration on the assembly side connected to the operating assembly, and a bearing configuration on the structure side connected to the support structure. The bearing configuration on the assembly side and the bearing configuration on the structure side are arranged to be rotatable about a drive mechanism axis relative to a second support structure region in a reference state, and the bearing configuration on the assembly side and the bearing configuration on the structure side can be axially separated from each other as specified and thus can be separated from each other. The bearing configuration on the assembly side has a driving configuration including a driving surface pointing in a first circumferential direction, and the bearing configuration on the structure side has a driving mating configuration including a driving mating surface pointing in a second circumferential direction opposite to the first circumferential direction. The movement spaces of the driving surface and the driving mating surface around the drive mechanism axis coincide.

Description

Field of the Invention

[0001] The present invention relates to a surface processing machine, such as a milling machine, a recycler, a stabilizer or an open-pit mining machine, comprising a support structure and a working assembly for surface processing rotatably supported on the support structure about a drive mechanism axis relative to the support structure, wherein the drive mechanism axis defines an axial direction extending along the drive mechanism axis, a radial direction extending orthogonally thereto, and a circumferential direction surrounding the drive mechanism axis, wherein, in a reference state in which the working assembly is ready to rotate about the drive mechanism axis, the working assembly is rotatably supported on a first support structure region on an axial end region of the drive mechanism by means of a first rotary bearing, and on a second support structure region on a fixed mechanism axial end region axially remote from the drive mechanism axial end region by means of a rotary bearing device, wherein the rotary bearing device has a second rotary bearing, a component-side bearing configuration connected to the working assembly, and a structure-side bearing configuration connected to the support structure, wherein the fixed mechanism axial end region has one of a bearing pin and a bearing sleeve as the component-side bearing configuration, and wherein the second support structure region has the corresponding other of the bearing pin and the bearing sleeve as the structure-side bearing configuration, wherein the bearing sleeve surrounds the bearing pin in the reference state, wherein the bearing pin and the bearing sleeve are rotatably arranged about the drive mechanism axis relative to the second support structure region in the reference state, and wherein the bearing pin and the bearing sleeve can be axially separated from each other as required and thus separated from each other for maintenance, modification and installation purposes.

[0002] The present invention further relates to a support structure for connection to the frame of a surface processing machine, which is in particular embodied as a milling roller box, which has a plurality of connection configurations for detachably connecting to the frame of the surface processing machine in a specified manner. The support structure includes a working assembly for surface processing rotatably supported on the support structure about a drive mechanism axis, and is also constructed as described in the previous paragraph. Background Art

[0003] Such a surface processing machine in the form of a milling machine and such a support structure in the form of a milling roller box of this type are known from EP 3406798A1.

[0004] The second support structure region of the known surface processing machine can swing about a swing axis substantially parallel to the yaw axis of the surface processing machine as a maintenance flap or maintenance door of the milling roller box, so that the milling roller or the drive configuration supporting the milling roller accommodated in the milling roller box can be made accessible by the swing of the maintenance door, the milling roller or the drive configuration being part of the known working assembly. When the maintenance door is opened, the milling roller can be axially pulled out of the drive configuration supporting it and replaced, for example, with another milling roller.

[0005] The bearing pin and the bearing sleeve are designed such that when the maintenance door is opened, the bearing configuration on the structure side, in known cases the bearing sleeve, is axially pulled out from the bearing configuration on the component side, in known cases the bearing pin, by the swinging movement of the maintenance door. Due to this swinging movement, the pulling-out movement of the bearing sleeve from the bearing pin is not a purely axial relative movement, but rather a mainly axial translational component of the pulling-out movement is superimposed by a numerically smaller radial translation of the bearing sleeve and a rotational movement component.

[0006] Since the bearing configuration on the structure side and the bearing configuration on the component side of the rotational bearing device can be advantageously separated simply and quickly, the bearing configurations are only coupled to each other in a frictional engagement in the reference state in order to perform a rotational movement together about the drive mechanism axis. During the ground processing operation of the ground processing machine, in certain operating cases, when using a temporarily increased radial load on the rotational bearing of the working assembly, such as when starting the working assembly or / and when placing the working assembly on the ground to be processed or / and when changing the engagement depth of the working assembly orthogonal to the drive mechanism axis, high loads will occur on the rotational bearing device, such that the bearing configuration on the structure side and the bearing configuration on the component side rotate relative to each other undesirably. This occurring relative rotation can cause undesirably high wear on at least one of the bearing configurations. Summary of the Invention

[0007] Therefore, the object of the present invention is to improve the support of the working assembly on the rotational bearing device having bearing configurations that can be separated from each other as required, and thereby avoid possible increased wear.

[0008] The present invention achieves this object on a ground processing machine of the type described at the beginning in such a way that the working assembly has a carrying configuration including a carrying surface pointing in a first circumferential direction around the drive mechanism axis, and the bearing configuration on the structure side has a carrying mating configuration including a carrying mating surface pointing in a second circumferential direction opposite to the first circumferential direction around the drive mechanism axis, wherein, in the reference state, the movement spaces of the carrying surface and the carrying mating surface around the drive mechanism axis coincide.

[0009] The present invention is realized by the same device on a machine support structure for such floor processing of the type described at the beginning, namely the support structure according to claim 15. Since the present invention is realized on the support structure of the floor processing machine and the support structure is detachably connected to the floor processing machine as required, the following description and improvement solutions of the present invention are applicable not only to the floor processing machine but also to the support structure itself. The support structure is preferably a jacket that surrounds the working assembly on multiple sides, such as a known milling roller box, which has milling rollers or at least one drive configuration for detachably coupling to the milling rollers as required, and is supported so as to be rotatable about the drive mechanism axis. However, in principle, the support structure can be any structure that supports the first rotating bearing and the rotating bearing device.

[0010] If no contrary indication is explicitly given in the specific situation, the present invention is described in the reference state defined at the beginning, in which the working assembly is ready to rotate about the drive mechanism axis.

[0011] Maintenance, modification and installation purposes (for which the bearing pin and the bearing sleeve could be axially separated from each other previously) relate to the maintenance or / and modification or / and installation of components other than the second rotating bearing of the rotating bearing device. The second rotating bearing can be a rolling bearing or a sliding bearing, or include a rolling bearing or a sliding bearing. The maintenance, modification and installation purposes given above relate to operations on the working assembly, such as removing the milling roller from the drive configuration or / and installing the milling roller onto the drive configuration.

[0012] Since the above-mentioned carrying configuration and the carrying mating configuration are arranged to have surfaces pointing in opposite circumferential directions around the axis of the drive mechanism: the carrying surface and the carrying mating surface (the movement spaces of which coincide around the axis of the drive mechanism), the carrying surface and the carrying mating surface, as well as the carrying configuration and the carrying mating configuration, do not pass by each other along a circumferential path around the axis of the drive mechanism. Therefore, when the bearing configuration on the structural side and the bearing configuration on the component side of the rotational bearing device are connected, even when the carrying surface and the carrying mating surface are at the maximum circumferential distance from each other around the axis of the drive mechanism, the two bearing configurations can only perform a relative rotation of less than one full turn until the carrying surface reaches abutting engagement with the carrying mating surface, and due to the form-fit engagement thus achieved, the bearing configurations of the rotational bearing device rotate synchronously without relative rotation around the axis of the drive mechanism. If a relative rotation of less than 360° is desired, a plurality of carrying configurations and / or carrying mating configurations can be arranged distributed circumferentially. According to an improvement of the present invention, in order to ensure a uniform load on the configurations, a plurality of carrying configurations and carrying mating configurations can also be arranged. Preferably, a plurality of carrying configurations or / and carrying mating configurations are arranged distributed circumferentially around the axis of the drive mechanism at equal intervals, such that when establishing the reference state, no attention needs to be paid to the relative orientation of the carrying configuration and the carrying mating configuration relative to each other. Due to the preferably equidistant arrangement, the angular spacing between two adjacent carrying configurations or carrying mating configurations is an integer part of 360°.

[0013] Here, the movement space of a surface is the space passed through by one of the carrying surface or the carrying mating surface during rotation around the axis of the drive mechanism.

[0014] Since the path of the drive torque generally extends from the working component to the bearing configuration on the structural side, and also since the working component can generally only be driven to rotate in the rotational direction, the first circumferential direction in which the carrying surface points is the circumferential direction in which the working component is driven to rotate.

[0015] The surface processing machine preferably has a drive motor as the rotational drive mechanism of the working component, and the drive torque can be transmitted from this drive motor to the working component. In order to drive the working component at a suitable rotational speed or within a suitable rotational speed range, at least one transmission mechanism, in particular a planetary transmission mechanism, can be provided in the torque transmission path from the drive motor to the working component. The transmission system from the drive motor to the working component preferably has a traction drive mechanism, in particular a belt drive mechanism, and a so-called planetary transmission mechanism, in this order along the torque transmission path, due to construction space considerations. In order to provide sufficient hydraulic energy, a pump distribution drive mechanism can be additionally arranged in the transmission system, preferably between the drive motor and the traction drive mechanism. The last transmission mechanism in the torque transmission path from the drive motor to the working component, in particular the above-mentioned planetary transmission mechanism, can be arranged at least partially in a drive configuration that is rotatably supported by a first rotational bearing continuously by means of a support structure.

[0016] The drive mechanism itself can have a first rotary bearing as a planetary drive mechanism. A first part of the drive mechanism housing can be fixedly fixed in a position on the support structure, and a second part of the drive mechanism housing can be supported on the first drive mechanism housing part so as to be rotatable about the drive mechanism axis relative to the first drive mechanism housing part. The second drive mechanism housing part is non-rotatably coupled to the drive configuration or / and is part of the drive configuration.

[0017] Therefore, the first rotary bearing is preferably the so-called fixed bearing of the rotary support device of the working assembly. As a fixed bearing, the first rotary bearing has no axial movement clearance relative to the components connected thereto, and the components are: the first support structure area and the working assembly. The fixed bearing generally remains unchanged during its working service life on the surface processing machine or on the support structure except for inevitable wear. The rotary bearing device forms a floating bearing for the rotary support of the working assembly, and this floating bearing allows specified axial relative movement between the second support structure area and the working assembly. The rotary bearing device is even specified for repeatedly separating and reconnecting its above-mentioned bearing configuration.

[0018] Preferably, the bearing configuration on the structure side is a bearing sleeve. In order to keep the number of components low, the bearing sleeve can in principle be the inner ring of a second rotary bearing preferably configured as a rolling bearing, but this is not preferred due to the high hardness and the associated poor machining performance of the inner ring of the rolling bearing. Preferably, the bearing configuration on the structure side is a bearing sleeve indirectly or directly carried by the inner ring of a second rotary bearing preferably configured as a rolling bearing. Since the bearing sleeve can preferably be pushed onto the bearing pin forming the bearing configuration on the component side by the swinging movement of the second support structure area and should be able to be pulled off it, the bearing sleeve is preferably configured with a notch that gradually narrows in the direction away from the axial end area of the drive mechanism. Therefore, the bearing sleeve is preferably approximately funnel-shaped. For the same reason, the bearing pin preferably forming the bearing configuration on the component side is preferably configured to gradually narrow towards its protruding longitudinal end.

[0019] The second rotary bearing is preferably arranged functionally between the second support structure area (one end) and the two bearing configurations (the other end), whereby the two bearing configurations can rotate relative to the second support structure area.

[0020] During ground machining, to avoid undesired auxiliary forces between the carrying configuration and the carrying mating configuration, at least one of the carrying surface and the carrying mating surface is preferably configured to be flat. The auxiliary force has a component orthogonal to a virtual peripheral circular orbit through the contact area of the carrying surface and the carrying mating surface. The flat surface lies in a plane containing the axis of the drive mechanism. Thus, during rotation about the axis of the drive mechanism, the flat surface is oriented orthogonally to its movement orbit at any given time. The respective other surface of the carrying surface and the carrying mating surface may have a convexly curved configuration placed on the flat surface, such as a spherical cap or an elliptical cap, or may also preferably be flat for reasons of simple manufacture and as low a surface pressure as possible. To avoid undesired high loads caused by surface pressure at the contact site between the carrying surface and the carrying mating surface, the carrying surface and the carrying mating surface preferably abut each other in a surface-to-surface manner and are parallel to each other when abutting. Therefore, preferably, the respective other flat surface of the carrying surface and the carrying mating surface also lies in a plane containing the axis of the drive mechanism.

[0021] Although a spacing may arise between the carrying surface and the carrying mating surface immediately after establishing a connection between the bearing configurations with respect to each other along a peripheral circular orbit about the axis of the drive mechanism, it is preferred that the carrying surface and the carrying mating surface are in a running condition of abutting engagement for transmitting force in the circumferential direction. If this running condition did not exist previously, it advantageously occurs automatically when a relative rotation occurs between the bearing configurations.

[0022] To reliably establish the above-described abutting engagement for transmitting torque between the carrying surface and the carrying mating surface, the carrying mating configuration may have a recess into which a protrusion of the carrying configuration engages. Alternatively, the carrying mating configuration may have a protrusion that abuts or can form an abutting engagement with the protrusion or recess of the carrying configuration. Also alternatively, the carrying mating configuration may have a recess and a protrusion, for example when the carrying mating surface is configured on a separate protruding member that is inserted into a recess of the structural-side bearing configuration. Thus, the protruding member with the carrying mating surface is anchored to the structural-side bearing configuration as durably and position-fixed as possible. Then, the protruding member with the carrying mating surface may protrude from the recess over the surrounding surface of the bearing configuration.

[0023] The drive coupling configuration can be formed integrally with the bearing configuration on the structural side as a protrusion or a recess, for example, by deformation manufacturing and subsequent reprocessing if necessary, or the recess can be formed only by corresponding machining. More flexibly and particularly more suitable for retrofitting, the drive coupling configuration can be connected to the bearing configuration as a protruding component through a joining process. Thus, the drive coupling configuration can be materially connected to the bearing configuration, particularly by welding, and also by soldering or bonding if necessary, which results in a very high connection strength. Alternatively, the drive coupling configuration or the protruding component included in the drive coupling configuration (the protruding component has a drive coupling surface) can be detachably connected to the bearing configuration as required, for example, by a screw connection, so that the protruding component with the drive coupling surface can be replaced by an unworn protruding component when a predetermined wear state is reached.

[0024] A drive coupling surface that can transmit high torque and can be simply replaced at the same time can be obtained by the fact that the drive coupling configuration has a protrusion, particularly a protruding component, which is inserted into a recess of the bearing configuration on the structural side and is detachably fixed in place here. Preferably, the protrusion or the protruding component is connected to the bearing configuration on the structural side by screws in a fixed but at the same time detachable connection.

[0025] What has been described above about the drive coupling configuration also applies, with necessary modifications, to the drive configuration. The drive configuration can also include a protrusion or / and a recess. Correspondingly, the drive configuration can also include a protruding component that is received in a recess of the component carrying it, so that as high a torque as possible can be transmitted from the drive configuration, which is usually used for driving, to the drive coupling configuration that is usually driven.

[0026] The drive configuration can also be detachably connected to the component carrying it as required, i.e., for example, by a screw connection, or non-detachably connected as required, i.e., for example, by welding, soldering, bonding, etc.

[0027] The main difference between the drive configuration and the drive coupling configuration is that the drive coupling configuration is arranged on the bearing configuration on the structural side so that it rotates synchronously with the working component, but the drive configuration does not necessarily have to be arranged on the bearing configuration on the component side, but can be arranged at any suitable location on the working component to move together with it. Of course, the drive configuration can be arranged on the bearing configuration on the component side.

[0028] As described above, the working assembly can have a drive configuration, which is rotatably supported about the drive mechanism axis on a first support structure region by means of a first rotary bearing in the axial end region of the drive mechanism and projects axially away from the first support structure region. A working device, such as a milling roller, can be pushed axially onto the drive configuration from this side of the axial end region of the fixing mechanism and connected to the drive configuration for common rotation. The working device can also be pulled out or pushed out axially in the opposite direction from the drive configuration.

[0029] The working assembly can have only the drive configuration.

[0030] Since the drive configuration is permanently rotatably supported on the first support structure region, it is advantageous for the drive configuration to carry a carrying configuration. Thereby, the carrying configuration is always present on the support structure and thus on the surface processing machine having the support structure.

[0031] In the normal reference state, the second support structure region is arranged axially at a distance from the longitudinal end of the drive configuration protruding from the first support structure region. In order to be able to ensure with low structural costs that the carrying surface of the carrying configuration arranged on the drive configuration can engage with the carrying mating surface of the structural-side bearing configuration for torque transmission, it is advantageous for the drive configuration to have an axially directed end face at its longitudinal end remote from the first rotary bearing, wherein the end face carries the carrying configuration. On the one hand, such an end face provides a sufficiently large surface for arranging the carrying configuration. On the other hand, the end face or the end face member having the end face is constructed with sufficient strength to transmit the required torque.

[0032] The end face is preferably arranged orthogonally to the drive axis, but this is not necessary. The axially directed end face can be constructed stepwise or / and conically from the drive mechanism axis towards the radial outside, wherein preferably, half of the opening angle of the end face cone is greater than 45°, so as to avoid the end face having an excessive axial extension. At this time, the end face also always mainly points in the axial direction.

[0033] The drive configuration can have a tube section, in particular a cylindrical section, whose tube axis or cylinder axis is the drive mechanism axis. At least a part of the above-mentioned transmission mechanism can be arranged in at least a part of the tube section, preferably in the tube section closer to the first support structure region than the second support structure region.

[0034] The cylindrical section can be partially or preferably completely covered by an end face member at its protruding longitudinal end remote from the rotary bearing, whereby the drive configuration preferably includes a basin-shaped configuration, the bottom of which is formed by the end face member.

[0035] As described above, the drive configuration is used to meet different working tasks, preferably for detachably accommodating milling rollers as required. Thereby, the drive configuration can accommodate a plurality of milling rollers in sequence over time, and the plurality of milling rollers differ from the milling cutters for removing ground material arranged thereon in terms of type or / and quantity or / and arrangement. Therefore, the working assembly can include a working configuration and milling rollers.

[0036] In order to avoid relative rotation between the drive configuration and the milling rollers accommodated by the drive configuration, the drive configuration preferably has a protruding transmission member for substantially transmitting torque to the milling rollers arranged on the drive configuration. Generally, in the axial end region of the drive mechanism, torque is introduced into the drive configuration from the drive motor of the surface processing machine. When the milling rollers are arranged on the drive configuration and the working assembly has the drive configuration and the milling rollers, the torque transmission path extends from the drive configuration to the milling rollers within the working group at this time.

[0037] In order to keep the number of components of the working group as small as possible, preferably at least one of the transmission members has a carrying configuration.

[0038] In the reference state, especially in the reference state ready for surface processing, the milling rollers accommodated on the drive configuration and the drive configuration are arranged coaxially. The milling rollers include a milling roller cover that surrounds the drive configuration radially on the outside. In order to transmit torque from the drive configuration to the milling rollers as simply and reliably as possible, the milling rollers preferably protrude onto the drive configuration at the longitudinal end of the drive configuration away from the axial end region of the drive mechanism.

[0039] When the first rotating bearing is arranged between the above two transmission mechanism housing parts, the milling rollers surround the first rotating bearing radially on the outside to achieve a large axial working width and extend axially in the direction away from the axial end region of the fixing mechanism.

[0040] A plurality of milling cutter supports are arranged on the outer side of the milling roller cover, and the milling cutter supports are configured to accommodate milling cutters. Preferably, the milling cutter supports are configured as milling cutter replacement supports, having a support member on the cover side permanently arranged on the milling roller cover and a support replacement member that can be detachably connected thereto as required. Since the milling cutters are highly worn during the surface processing operation, the milling cutters are preferably also replaceably arranged in the corresponding milling cutter supports. The milling cutter supports are preferably arranged spirally on the milling roller cover to help transport the removed ground material away from the working assembly.

[0041] The milling roller is preferably supported on the drive configuration at its longitudinal end closer to the axial end region of the drive mechanism. This is achieved particularly simply and stably here because the drive configuration is supported on the first support structure region in the axial end region of the drive mechanism, and thus has a high support strength here due to the small axial protruding length from the first support structure region. In order to re-support the milling roller on the drive configuration with an axial spacing relative to the first-mentioned support, the milling roller preferably has a connecting structure extending transversely to the axis of the drive mechanism in the axial end region of the fixing mechanism. Preferably, the connecting structure is axially adjacent to the above-mentioned end face in the reference state, so that a favorable and as large as possible bearing spacing is achieved between the two support sites of the milling roller. The end face of the drive configuration may, for example, have an axially protruding centering pin, and the milling roller is supported on the centering pin in a form-fitting and centering manner via the connecting structure.

[0042] The above-mentioned carrying configuration carried by the drive configuration can extend axially past or through the connecting structure at the connecting structure, thereby protruding towards the structural-side bearing configuration onto the connecting structure. Preferably, the carrying configuration extending past or through the connecting structure at the connecting structure is formed on the above-mentioned transmission member. Thereby, the section of the transmission member axially coinciding with the connecting structure can transmit the torque from the drive configuration to the milling roller, and the section of the transmission member axially extending beyond the connecting structure towards the second support structure region forms the carrying configuration and transmits the torque to the structural-side bearing configuration. Preferably, the carrying configuration is the axial end region of the transmission member protruding axially from the drive configuration. Such a transmission member can be realized, for example, by a protruding bolt or pin. The transmission member and the carrying configuration connected thereto are preferably also arranged detachably on the drive configuration as required, for example, by screws, especially screws passing through the transmission member centrally, arranged on the drive configuration.

[0043] In addition to or instead of the drive configuration, the milling roller can carry a carrying configuration. Since the milling roller can be connected to and detached from the drive configuration as a separate structural unit, the present application also relates to a milling roller as described and improved in the present application, which has a carrying configuration.

[0044] When the milling roller carries a carrying configuration or at least also carries a carrying configuration, the carrying configuration can be arranged on the above-mentioned connecting structure at this time. As described above, the connecting structure preferably extending transversely, particularly preferably orthogonally, to the axis of the drive mechanism can connect the milling roller cover to the component-side bearing configuration. Preferably, the component-side bearing configuration is a bearing pin, which protrudes axially in a direction away from the axial end region of the drive mechanism on the side facing away from the axial end region of the drive mechanism. On the side of the connecting structure pointing to the axial end region of the drive mechanism, a notch can be formed in the region of the bearing pin, and the above-mentioned centering pin on the end side of the drive configuration extends into the notch in the reference state.

[0045] The working assembly may include at least one fixing device, such as one or more fixing screws, by means of which the milling roller is fixed to the drive configuration in the reference state. Thus, the milling roller is detachably accommodated on the drive configuration as required, and at least one fixing device is also detachably accommodated on the rest of the working assembly. The actuating configuration may be arranged or configured on the fixing device, in particular as a fixing screw. If the fixing device has, in addition to the fixing screw, a spacer in the reference state that is fastened to the drive configuration and / or the milling roller by the fixing screw, the actuating member may alternatively or additionally be arranged or configured on the spacer.

[0046] In order to keep the number of components for forming the working assembly low, the fixing device preferably includes a fixing screw that is screwed into the above-mentioned centering pin of the drive configuration such that the helical axis of the fixing screw is coaxial with the drive mechanism axis in the reference state.

[0047] In particular when the actuating configuration is formed on the fixing device, the actuating mating configuration may then be configured on a member that is separately configured relative to the bearing housing or the inner ring of the second rotary bearing, and this member is preferably detachably connected to the bearing housing or the inner ring of the second rotary bearing as required.

[0048] It is possible that all these components that are still connected to the drive configuration after pulling the bearing housing off the bearing pin starting from the reference state are part of the working assembly.

[0049] Compared with the situation discussed above (wherein, when establishing the reference state, the actuating configuration and the actuating mating configuration have a spacing from each other in the circumferential direction around the axis of the drive mechanism), it is also possible that, when establishing the reference state, the actuating configuration and the actuating mating configuration coincide with each other in the circumferential direction. In this case, such coincidence serves as a physical barrier to prevent the establishment of the reference state or a full attempt to establish the reference state will damage one of the said configurations. In order to avoid such adverse consequences for the surface processing machine or the support structure in the case of coincidence, the actuating configuration can be made to have an adjustment surface that axially points away from the axial end region of the drive mechanism in the reference state, and the actuating mating configuration can be made to have an adjustment mating surface that axially points towards the axial end region of the drive mechanism in the reference state. The adjustment surface is inclined with respect to a reference plane orthogonal to the axis of the drive mechanism such that the adjustment surface approaches the axial end region of the drive mechanism as the circumferential spacing from the actuating surface in the second circumferential direction increases. The adjustment mating surface is inclined with respect to a reference plane orthogonal to the axis of the drive mechanism such that the adjustment mating surface moves away from the axial end region of the drive mechanism as the circumferential spacing from the actuating mating surface in the first circumferential direction increases. Thus, in the above-mentioned case of coincidence, the actuating configuration and the actuating mating configuration slide past each other along their adjustment surfaces and adjustment mating surfaces in the circumferential direction through relative rotation until the second bearing configuration can approach the first bearing configuration axially, so that the reference state can be established. Under axial pressure, the adjustment surfaces and adjustment mating surfaces of the working assembly and the bearing configuration on the structure side force a short helical relative movement, which has the axis of the drive mechanism as the helical axis.

[0050] When the inclination of the surfaces (the adjustment surface and the adjustment mating surface) with respect to the reference plane is numerically large enough, self-locking does not occur at this time, but rather the working assembly and the bearing configuration on the structure side move out of the initially existing coincidence situation through the connection process of the bearing configuration on the structure side and the bearing configuration on the component side approaching each other axially. For this purpose, it is advantageous that the adjustment surface is inclined with respect to the reference plane at an angle of at least 25°, preferably at least 30°, or / and the adjustment mating surface is inclined with respect to the reference plane at an angle of at least 25°, preferably at least 30°. In order to provide a contact with as flat a surface as possible and with low surface pressure between the adjustment surface and the adjustment mating surface, it is preferred that the inclination angles of the adjustment surface and the adjustment mating surface are numerically the same.

[0051] As already stated for the prior art at the beginning, according to the invention, it is preferred that the second support structure region and the bearing configuration on the structure side can also swing away from the first support structure starting from the reference state around a swing axis that is at least bent, preferably orthogonal, with respect to the axis of the drive mechanism. The swing axis preferably extends parallel to the yaw axis of the surface processing machine that extends in the height direction of the surface processing machine to avoid the action of gravity on the swinging movement. The swing axis is at least preferably inclined with respect to the yaw axis by no more than 15°. Preferably, the second support structure region is configured as a maintenance door of a casing that encloses most of the working assembly, such as a milling roller box.

[0052] Although a support structure can be provided at the construction site in a reference state for connection to the frame of the surface processing machine, the support structure is preferably connected to such a frame in the reference state. The connection between the support structure and the frame is preferably detachably provided as required, for example, by a screw connection or / and by actuation of at least one form-locking locking member that can be operated by an actuator, thereby simplifying the maintenance and, if necessary, the repair of the support structure. However, the support structure may also be connected to the frame in a non-detachable manner as required, for example, by welding. Description of the Drawings

[0053] The present invention will be described in detail below with reference to the drawings. Shown therein are:

[0054] Figure 1 A rough side view of an embodiment of a surface processing machine in the form of a large milling machine according to the present invention is shown.

[0055] Figure 2 Shown is Figure 1 A schematic longitudinal section of the support structure and the working assembly of the surface processing machine in the state ready for surface processing in, wherein the cutting plane contains the axis of the drive mechanism of the working assembly.

[0056] Figure 3 Shown is an enlarged partial longitudinal section of the working assembly at the right longitudinal end in Figure 2 including the drive configuration and the milling rollers.

[0057] Figure 4 Shown is Figure 2 and Figure 3 A perspective view of the drive configuration in.

[0058] Figure 5 A top view of the drive configuration in Figure 4 is shown in a direction orthogonal to the axis of the drive mechanism.

[0059] Figure 6 A perspective view of a transmission member having a carrying configuration is shown, the carrying configuration engaging with a carrying mating configuration on the bearing housing in Figure 2 and Figure 3 the bearing housing.

[0060] Figure 7 A top view of the transmission member of the bearing housing in Figure 6 is shown in a direction along the machine height and orthogonal to the axis of the drive mechanism, and

[0061] Figure 8 A perspective view of the connection structure and the bearing housing of the surface processing machine or the support structure of the present application according to a second embodiment of the present invention is shown. Detailed Description of the Embodiment

[0062] In Figure 1 Figure 1 schematically shows a first embodiment of the present invention of a surface processing machine in the form of a surface milling machine or a road milling machine. The surface processing machine includes a frame 12, and the frame forms the basic framework of the machine body 13. The machine body 13 includes the frame 12 of the machine 10 and members connected to the frame and capable of moving relative to the frame if necessary.

[0063] The machine body 13 includes a front lifting column 14 and a rear lifting column 16. One end of the front lifting column and the rear lifting column is connected to the frame 12, and the other end is connected to the front traveling mechanism 18 or the rear traveling mechanism 20. The distances between the frame 12 and the traveling mechanisms 18 and 20 can be changed by the lifting columns 14 and 16.

[0064] The traveling mechanisms 18 and 20 are shown, for example, as chain-type traveling mechanisms. The single or all of the traveling mechanisms 18 or / and 20 can also be different from this, such as wheel-type traveling mechanisms.

[0065] Figure 1 An observer in Figure 1 looks at the surface processing machine or simply the "machine 10" in the machine transverse direction Q orthogonal to the drawing plane in Figure 1 Figure 1. The machine longitudinal direction orthogonal to the machine transverse direction Q is denoted by L and extends parallel to Figure 1 the drawing plane in Figure 1 Figure 1. The machine height direction H also extends parallel to

[0066] the drawing plane in

[0067] The working assembly 28 is arranged below the frame 12. Here, the working assembly is, for example, a milling assembly, which has milling rollers 32 accommodated in a milling roller box 30. The milling rollers can rotate around a milling axis R extending in the machine transverse direction Q. Thus, during surface processing, starting from the supporting surface AO of the foundation U, the foundation material is stripped at a milling depth determined by the relative height position of the frame 12. Therefore, the milling rollers 32 are the working devices in this application. The milling roller box 30 detachably connected to the frame 12 forms the supporting structure in this application.

[0068] The machine frame 12, through the height adjustability of the lifting columns 14 and 16, is also used to set the milling depth or generally the operating depth of the machine 10 during ground processing. The exemplary ground processing machine 10 shown is a large milling machine. For large milling machines, it is common to arrange the working assembly 28 between the front traveling mechanism 18 and the rear traveling mechanism 20 in the longitudinal direction L of the machine. Such large milling machines or ground stripping machines usually have a conveyor belt to transport the stripped ground material away from the machine 10. In Figure 1 For clarity, the conveyor belt that in principle exists in the machine 10 is not shown.

[0069] In Figure 1 the side view, the machine 10 has two lifting columns 14 or 16 respectively in its front end region and its rear end region, and the traveling mechanisms 18 or 20 respectively connected thereto. The front lifting columns 14 are respectively coupled to the traveling mechanism 18 by means of a traveling mechanism connection structure 34 in a known manner. The traveling mechanism connection structure 34 is, for example, a connecting fork that straddles the traveling mechanism 18 in the transverse direction Q of the machine. Via a traveling mechanism connection structure 36 having the same structure as the traveling mechanism connection structure 34, the rear lifting column 16 is connected to its corresponding traveling mechanism 20. The traveling mechanisms 18 and 20 are constructed substantially identically and form the traveling mechanism 22 of the machine. The traveling mechanisms 18 and 20 are driven by motors, usually by hydraulic motors (not shown).

[0070] The internal combustion engine 39 accommodated on the machine frame 12 forms the driving force source of the machine 10. In the illustrated embodiment, the milling roller 32 is rotated by the internal combustion engine. The power of the internal combustion engine 39 also provides a hydraulic reservoir on the machine 10, and the hydraulic motors and hydraulic actuators on the machine can be driven by the hydraulic reservoir. Therefore, the internal combustion engine 39 is also the source of the driving force of the machine 10.

[0071] In the illustrated example, the traveling mechanism 18, whose traveling direction is shown by a double arrow D, has a radially internal accommodation and guiding structure 38, and a circumferential traveling chain 40 is arranged on this radially internal accommodation and guiding structure and performs a circumferential movement.

[0072] The lifting column 14 and the traveling mechanism 18 together with it can be rotated around a steering axis S by a steering device (not shown in detail). Preferably additionally, but alternatively, the lifting column 16 and the traveling mechanism 20 together with it can be rotated around a steering axis parallel to the steering axis S by a steering device.

[0073] In Figure 2 the working assembly 28 and Figure 1 the longitudinal section of the milling roller 32 in Figure 2 are shown in a sectional plane containing the rotational axis R of the milling roller.

[0074] The milling roller 32 includes a substantially cylindrical milling roller tube 42. On the radially outer side of the milling roller tube, a cutter holder or cutter replacement holder 33a is arranged in a known manner, and a replaceable milling cutter 33b is accommodated therein. For clarity, only one example is shown respectively. The dotted line 44 gives the effective diameter (sectioned cylinder) of the milling roller 32, which is defined by the milling cutter tip of the milling cutter 33b.

[0075] The working assembly 28 includes a drive configuration 46 having a rotatable part 52a of an inner tube 48, a support cone 50, and a transmission housing 52 relative to the machine frame 12. The support cone 50 and the inner tube 48 are connected to each other and, as an assembly, are connected to the transmission housing part 52a to rotate together about the drive axis A of the drive configuration 46. In the reference state of the working assembly 28, the drive axis A of the drive configuration 46 and the rotation axis R of the milling roller 32 are coaxial.

[0076] In Figure 2 , the working assembly 28 is in the reference state ready to rotate about the drive axis A. For this purpose, the milling roller 32 is connected to the drive configuration 46 of the working assembly 28 in a torque-transmitting manner. The milling roller 32 surrounds the drive configuration 46 radially externally.

[0077] A planetary transmission for reducing speed and increasing torque is accommodated in the transmission housing 52. A part 52b of the transmission housing 52 that can rotate together with the inner tube 48 and is located Figure 2 on the right side in Figure 2 is coupled to the ring gear of the planetary transmission to rotate together. A part 52b of the transmission housing 52 on the left side in

[0078] is fixed relative to the support structure and is thus fixed to a part of the body 13 fixed to the machine frame.

[0079] Furthermore, the drive configuration 46 is connected to a drive torque transmission device 54, which in the example shown particularly includes a pulley 55. The pulley 55 is connected to the input shaft ( Figure 2 not shown in

[0080] ) of the planetary transmission in the transmission housing 52. The input shaft connected to the pulley 55 to rotate together extends through a shaft passage 56 fixed to the support structure in the example shown, and the shaft passage is rigidly connected to the transmission housing part 52b.The drive configuration 46, together with the assembly of the shaft channel 56 fixed to the support structure and the transmission housing part 52b, forms a drive assembly 47 that axially extends into the milling roller 32 starting from the axial end region 28a of the drive mechanism of the working assembly 28. Preferably, the milling roller 32 axially protrudes on both sides beyond the drive configuration 46 that is part of the drive assembly 47, which is rotatable relative to the milling roller housing 30 serving as the support structure and thus relative to the machine frame 12.

[0081] The drive assembly 47 and the drive configuration 46 together with it are supported in the region of the shaft channel 56 on the first support structure region 30c of the milling roller housing 30. More specifically, the drive configuration 46 and the rotatable transmission housing part 52a are supported on the transmission housing part 52b fixed to the machine frame and on the first support structure region 30c by a first rotary bearing 57, and the first rotary bearing 57 is arranged between the rotatable transmission housing part 52a and the transmission housing part 52b fixed to the machine frame. In Figure 2 the first rotary bearing 57 is only shown in dashed lines and symbolically. The first rotary bearing 57 forms the fixed bearing of the drive configuration 46. Therefore, the axial longitudinal end 46a of the drive configuration 46 closer to the pulley 55 is also referred to as the longitudinal end 46a on the fixed bearing side.

[0082] The milling roller 32 axially extends along its axis of rotation (milling axis) R between the fixed mechanism axial end region 28b and the drive mechanism axial end region 28a of the drive assembly 28, and the axis of rotation R coincides with the drive mechanism axis A in the ready-to-run state, and the drive mechanism axial end region 28a is Figure 2 closer to the drive torque transmission device 54 in. In the fixed mechanism axial end region 28b, the milling roller 32 is position-fixed to the drive configuration 46 by a central fixing screw 78 in the reference state. The fixing screw 78 is part of the working assembly 28.

[0083] At the longitudinal end 46b on the floating bearing side axially opposite to the longitudinal end 46a on the fixed bearing side, the drive configuration 46 has a support ring 58 and an end-side cover 60 connected to the support ring 58 as the end face members of the present application. In the illustrated embodiment, the support ring 58 is welded to the inner tube 48. The cover 60 can also be welded to the support ring 58 or alternatively screwed. The cover is connected to the support ring 58 and the inner tube 48 to rotate together around the drive mechanism axis A.

[0084] The radially outer regions of the support ring 58 and the cover 60 can be designed in different ways. Its configuration is not necessary. It is also conceivable to cancel the support ring 58 and directly connect the cover 60 to the inner tube 48, especially by welding.

[0085] InFigure 2 In the illustrated embodiment, a hydraulic cylinder 62 is accommodated in the interior 49 of the drive configuration 46, and the hydraulic cylinder is arranged such that its hydraulic cylinder axis is coaxial with the drive mechanism axis A of the drive configuration 46. The hydraulic cylinder 62 can be supplied with hydraulic fluid through an energy through-hole 66 in the cover 60 by means of a hydraulic connection line 64.

[0086] The hydraulic connection line 64 can, at its longitudinal end remote from the hydraulic cylinder 62, leave the hydraulic cylinder 62 around the piston rod 63 in a coupling configuration 68 and re-enter the hydraulic cylinder, and this coupling configuration can be connected to a mating coupling configuration of a supply line (not shown) in order to supply the hydraulic cylinder 62. In order to operate a preferably double-acting hydraulic cylinder, two hydraulic connection lines 64 can be provided, one for each movement direction of the piston rod 63.

[0087] After a central fixing screw 78 provided for axially fixing the milling roller 32 to the drive configuration 46 has been loosened, the milling roller 32 is axially displaced from the drive configuration 46 by the piston rod 63 for removal, or pulled onto the drive configuration 46 for installation.

[0088] In the region closer to the axial end region 28b of the fixing mechanism, a connection ring 70 is arranged radially internally on the milling roller tube 42 and is connected to the milling roller tube 42 for common rotation, in the illustrated example by a welded connection.

[0089] In this embodiment, the milling roller tube 42 is rigidly connected to a connection flange 74 via the connection ring 70 by means of bolts 72. The connection ring 70 and the connection flange 74 together form the connection structure 73 of the milling roller 32, as described in the introductory part of the description.

[0090] On the connection flange 74 screwed, welded or preferably integrally formed with the connection flange 74, a bearing pin 74a is provided, which projects axially from the connection region of the connection flange 74 with the connection tube 70 towards the axial end region 28b of the fixing mechanism, or projects away from the axial end region 28a of the drive mechanism.

[0091] Different from the illustrated embodiment, the connection flange can be directly connected to the milling roller tube, in particular welded, without a connection ring in the corresponding dimensions.

[0092] Additionally or alternatively, different from the illustrated embodiment, the bearing pin can be constructed separately from the connection flange and mounted on the connection flange, in particular detachably screwed.

[0093] In the ready-to-operate state of the milling roller 32, a second rotary bearing 76 is arranged on the bearing pin 74a, which supports the drive configuration 46 and is used for mounting for rotation about the drive mechanism axis A, and is used to form a floating bearing for the rotary mounting. In the illustrated embodiment, the two rotary bearings 57 and 76 are designed as rolling bearings.

[0094] The second rotary bearing 76, together with the bearing sleeve 86 and the bearing pin 74a arranged on the inner ring of the second rotary bearing 76, is part of the rotary bearing device 77. The bearing pin 74a is the component-side bearing configuration of the rotary bearing device 77, and the bearing sleeve 86 is the structural-side bearing configuration. The second rotary bearing 76 and the bearing sleeve 86 form a rotary bearing assembly 85, which can only move in conjunction during normal operation.

[0095] The second rotary bearing 76 can be accommodated, for example, in a side panel as a second bearing structure region, or in the side door 30a (see Figure 3 ). The side door 30a is part of the milling roller box 30 and is axially opposite to the milling roller 32 on the axial end area 28b of the fixing mechanism at the end side. Figure 2 Only the component 30 b rigidly connected to such a side door 30 a as a second bearing structure region is shown, which serves as a bearing surface for the outer bearing ring of the second rotary bearing 76 .

[0096] Preferably, the side door 30a is swingably arranged on the frame 12 so that the drive configuration 46 and / or the milling roller 32 in the interior of the milling roller box 30 can be contacted by simply swinging up and down. Preferably, the side door 30a can swing around a swing axis parallel to the machine height direction H, because the swing of the side door 30a in any swing direction does not need to overcome gravity. Preferably, the rotating bearing assembly 85 is supported on the side door 30a so that the rotating bearing assembly 85 can swing together with the side door 30a. Here, the opening of the side door 30a pulls the rotating bearing assembly 85, that is, the second rotating bearing 76 and the bearing sleeve 86 together axially off the bearing pin 74a.

[0097] Preferably, the distance between the side door swing axis and the side door 30a is greater than Figure 2 The radius of the cut-off cylinder of the milling roller 32 shown in FIG. 1 is such that when the side door 30a is swung together, the circular path of the rotary bearing assembly 85 has the largest possible radius and the smallest possible curvature. This makes it easy to pull the rotary bearing assembly 85 off the bearing pin 74a or push it onto the bearing pin 74a.

[0098] exist Figure 3 The middle support ring 58, the cover 60 and the connecting flange 74 have Figure 2a slightly different configuration in the schematic diagram. However, the configuration of the component has no difference in the impact on implementing the present invention compared with that in Figure 2 the schematic diagram in

[0099] In Figure 3 for the sake of clarity, the hydraulic cylinder 62 and its piston rod 63 are omitted. Similarly, for the sake of clarity, the bolts 72 for connecting the connecting flange 74 to the connecting ring 70 are not shown.

[0100] On the cover 60, a centering configuration 60a in the form of a centering pin is preferably integrally formed therewith. The centering pin extends from the cover 60 in the direction of the longitudinal end 46a of the fixed bearing side of the drive configuration 46 or away from the axial end region 28a of the drive mechanism of the working assembly 28 towards the second support structure region 30a. The centering pin 60a extends into a mating centering configuration 74b configured as a centering notch on the connecting flange 74, and thus the milling roller tube 42 rigidly connected to the connecting flange 74 is centered with respect to the drive mechanism axis A. The cover 60 has a central notch 60b axially penetrating the cover, and the central notch can be axially Figure 2 penetrated by the piston rod 63 in

[0101] Therefore, the milling roller 32 is supported on the drive configuration 46 coaxially with the drive mechanism axis A on the mating support cone 51 and the connecting flange 74.

[0102] On the end region of the centering pin 60a facing the axial end region 28b of the fixing mechanism, a notch 60b in the centering pin 60a is provided with an internal thread, and a central fixing screw 78 is screwed into the internal thread.

[0103] In an alternative design, the centering pin 60a penetrates the connecting flange 74 and projects axially from the cover 60 of the drive configuration 46. At this time, the centering pin 60a is a bearing configuration on the component side.

[0104] The screw head 78b clamps the bearing pin 74a and clamps the connecting flange 74 by means of the bearing pin, and in turn clamps the connecting ring 70 by means of the connecting flange, and the milling roller tube 42 abuts axially against the support cone 50 of the drive configuration 46.

[0105] Thus, when the milling roller 32 has an axial distance from its operating position in the axial direction but is arranged in a certain pre-position such that the longitudinal end of the centering pin 60a away from the support ring 58 has penetrated into the centering notch 74b of the connecting flange 74, the milling roller 32 can be moved axially into its operating position along with the central fixing screw 78. It should be noted that a transmission member 80 in the form of, for example, a pin, which is arranged on the cover 60 with a radial spacing from the axis A of the drive mechanism, can reach the notch 74c provided for this purpose in the connecting flange 74, thereby coupling the cover 60 with the connecting flange 74 to transmit torque between the drive configuration 46 and the milling roller 32.

[0106] Instead of tightening or clamping the milling roller 32 to the drive configuration 46 by means of the fixing screw 78, the milling roller 32 can also be pushed onto the drive configuration 46 by the swingable side door 30a. During the pushing-on process, not only the mating centering configuration 74b is pushed onto the centering pin 60a, but preferably the rotary bearing assembly 85 is also pushed onto the bearing pin 74a.

[0107] For simply introducing the milling roller 32 into the ready-to-operate position by swinging the side door 30a only to its closed state shown in Figure 3 In order to simply introduce the milling roller 32 into the ready-to-operate position by swinging the side door 30a only to its closed state shown in it, and the side door closes the milling roller housing 30 in the closed state, the floor processing machine 10 preferably has an actuator that assists the side door 30a to swing at least in one movement direction and at least in the movement range including the closed state. Particularly preferably, this relates to the end range of the movement when the side door 30a moves to the closed state. Therefore, the force required to push the milling roller 32 onto the drive configuration 46 and the force required to push the rotary bearing assembly 85 onto the bearing pin 74a are applied completely or at least partially by the actuator. Such an actuator can, for example, have one or more piston-cylinder devices. Preferably, the cylinder is hinged to the frame 12 here. When the piston rod extends out, when the side door 30a is close enough to the engagement configuration of the piston rod, at this time the side door 30a can engage with the engagement configuration of the piston rod, preferably a form-fit that transmits particularly high forces, such that one or more piston-cylinder devices at least assist and preferably automatically implement the remaining closing movement of the side door 30a.

[0108] Preferably, the actuator can assist or even implement the swinging movement of the side door 30a together with the rotary bearing assembly 85 in the starting area of the swinging movement when the side door 30a swings from the closed state towards the entry state, and the rotary bearing assembly 85 is pulled out from the bearing pin 74a through this starting area of the movement. Alternatively or additionally, the actuator can also be an electromechanical actuator.

[0109] In Figure 4 The longitudinal end 46b on the floating bearing side of the drive configuration 46 and the section of the inner tube 48 connected thereto are shown in a perspective view in. In Figure 2The hydraulic coupling configuration 68 shown in Figure 4 is not shown on the end face 60c for the sake of clarity in

[0110] Figure 4 For an observer looking at the end face 60c of the cover 60, the centering pin 60a projects from the center of the cover, and the cover is surrounded with a radial spacing by, for example, three transmission members 80 arranged equidistantly from one another in the circumferential direction. Here, Figure 3 the upper transmission member is configured with a driving configuration 88 at its free projecting longitudinal end remote from the end face 60c. In the example shown, only the upper transmission member 80’ is configured with the driving configuration 88, and thus, in order to distinguish it from the remaining two transmission members 80, the upper transmission member is denoted with an accent as the transmission member 80’.

[0111] All transmission members 80 and 80’ are fastened to the cover 60 by screws 80a passing centrally through them. The flange 80b surrounding the head of the screw 80a of the unmodified transmission member 80 terminates with an end surface orthogonal to the axis A of the drive mechanism, while the transmission member 80’ having the driving configuration 88 projects axially further from the end face 60c, wherein a circumferential section of the flange 80b’ surrounding the fastening screw 80a is configured as the driving configuration 88 (see also Figure 5 ).

[0112] The drive configuration 46 can be driven to rotate only in one rotational direction by the above-described rotational drive mechanism for the processing of stripping the ground, which is the first circumferential direction U1 marked with U1 in Figure 4 The driving configuration 88 has a driving surface 88a, which is a flat driving surface 88a in the example shown, and this driving surface points in the first circumferential direction U1. Preferably, this flat driving surface 88a lies in a plane containing the axis A of the drive mechanism.

[0113] An adjustment surface 88b pointing mainly in the axial direction extends from the driving surface 88a in the opposite second circumferential direction U2. As shown in Figure 7 this adjustment surface is inclined with respect to a reference plane BE orthogonal to the axis A of the drive mechanism such that the adjustment surface approaches the axial end region 28a of the drive mechanism of the drive assembly 28 in the second circumferential direction U2 as the distance from the driving surface 88a increases, or also approaches the longitudinal end region 46a on the fixed bearing side of the drive configuration 46 axially.

[0114] In Figure 6 and Figure 7 the torque transmission engagement of the driving configuration 88 with the driving mating configuration 90 on the bearing sleeve 86 is shown. In order to be able to show the engagement of the driving configuration 88 with the driving mating configuration 90 as clearly as possible, in Figure 6 and Figure 7Only the transmission member 80' with the actuating configuration 88, its fastening screw 80a, the actuating mating configuration 90 and the bearing sleeve 86 supporting them are shown. However, as is clear from the foregoing Figures 2 to 5 in combination, how the components shown in Figure 6 and Figure 7 are arranged on the milling roller box 30 or on the milling machine 10.

[0115] The actuating mating configuration 90 has an actuating mating surface 90a that is preferably flat and points in the second circumferential direction U2. The actuating mating surface abuts and engages with the actuating surface 88a to transmit torque. The adjustment mating surface 90b, which also mainly points in the axial direction, extends from the actuating mating surface 90a in the first circumferential direction U1. As can be seen in Figure 7 , the adjustment mating surface is inclined relative to the reference plane BE such that the adjustment mating surface moves axially away from the axial end region 28a of the drive mechanism of the drive assembly 28 and from the longitudinal end 46a on the fixed bearing side of the drive assembly 46 in the second circumferential direction U2 as the distance from the actuating mating surface 90a increases.

[0116] Just as both the actuating surface 88a and the actuating mating surface 90a point in the circumferential direction but in opposite circumferential directions U1 or U2, both the adjustment surface 88b and the adjustment mating surface 90b point in the axial direction but in opposite axial directions A1 or A2 (see Figure 7 ).

[0117] Functional surfaces of the actuating mating configuration 90: The actuating mating surface 90a and the adjustment mating surface 90b are formed on the protruding member 90c. The protruding member is inserted as a separate member into the recess 90d in the bearing sleeve 86 and is detachably fastened here, for example, by three screws. The recess 90d is a functional component of the actuating mating configuration 90.

[0118] Therefore, the torque transmitted from the actuating configuration 88 to the actuating mating configuration 90 can be transmitted from the protruding member 90c to the bearing sleeve 86 and to the rotary bearing assembly 85 via the fastening screws of the protruding member 90c and via the side surfaces of the recess 90d. A flat fastening surface for arranging the protruding member 90c can also be provided by the recess 90d.

[0119] In principle, the protruding member 90c can also be welded to the bearing sleeve 86. However, detachable fastening for replacing worn protruding members is preferred. In the case of excessive wear, the transmission member 80' can also be quickly, simply and reliably replaced with an unworn transmission member 80' by loosening its only fastening screw 80a.

[0120] The flat actuating mating surface 90a is preferably located in the plane containing the drive mechanism axis A.

[0121] Furthermore, as can be seen in Figure 7 the adjustment surface 88b and the mating adjustment surface 90b are inclined relative to the reference plane BE at substantially the same angle α or β numerically, such that these surfaces can be surface-to-surface and parallel or coplanar with each other when they abut against each other.

[0122] Preferably, the angles α and β are each at least 25°, more preferably at least 30°, in order to avoid self-locking in the case where the adjustment surface 88b and the mating adjustment surface 90b abut against each other, and for this purpose such that in the carrying configuration 88 and the carrying mating configuration 90 during an attempt to establish the reference state described above and shown in Figure 2 and Figure 3 not only coincide with each other in the circumferential direction but also exert a force on each other in the axial direction, by means of which axial force they are driven to rotate relative to each other at the abutting joint of the adjustment surface 88b and the mating adjustment surface 90b and can slide past each other during the mutual axial approaching movement. Thereby, damage to the carrying configuration 88 and the carrying mating configuration 90 in the case of a collision is prevented.

[0123] In Figure 7 the movement space of the carrying surface 88a is denoted by the reference numeral 92, and the movement space of the carrying mating surface 90a is denoted by the reference numeral 94. These are the spaces 92 and 94 that are swept during rotation about the drive mechanism axis A over the corresponding surfaces 88a or 90a. The overlapping region jointly occupied by the two movement spaces 92 and 94 is locally hatched and denoted by 96 in Figure 7 where the movement spaces 92 and 94 overlap. Due to this overlapping region 96, when the carrying surface and the carrying mating surface are arranged at a distance from each other in the circumferential direction about the drive mechanism axis A immediately after the establishment of the reference state and a relative rotation about the drive mechanism axis A occurs between the bearing pin 74a and the bearing sleeve 86 during the machining operation, the carrying surface 88a also abuts against the carrying mating surface 90a at this time. However, due to the adjustment surface 88b and the mating adjustment surface 90b, this relative rotation between the bearing pin 74a and the bearing sleeve 86 will not be one full turn at a time.

[0124] Unlike the merely exemplary schematic diagram in Figures 4 to 7 the carrying configuration 88 can be arranged on the milling roller, preferably on the connecting structure 73. For example, the carrying configuration can be arranged on a connecting flange, for example in a recess, preferably detachably arranged. This second embodiment is shown in Figure 8 Components and component sections that are the same as and have the same function as those in the first embodiment are provided with the same reference numerals in the second embodiment, but the numbers are increased by 100. Only the differences between the second embodiment and the first embodiment will be described below.

[0125] In Figure 8In the second embodiment shown, the actuating configuration 188 is arranged on the connecting structure 173. In the connecting structure 173, the bearing pin is constructed separately from the connecting flange 174 as a separate component. The separate bearing pin component and the bearing pin itself are hidden by the bearing sleeve 186 in Figure 8 the

[0126] The actuating configuration 188 includes a projecting member 188c, an actuating surface 188a, and an adjusting surface 188b which are constructed and oriented on the projecting member in the above-described manner, and the projecting member is placed in a recess 188d of the actuating configuration 188 and is detachably fixed to a screw here as required. The recess 188d is formed in the end face of the connecting flange 174.

[0127] The actuating mating configuration 190 corresponds to the actuating mating configuration 90 of the first embodiment. Optionally, the projecting members 90c and 188c may be the same, so that only one type of projecting member needs to be manufactured in order to form an engaging assembly including the actuating configuration and the actuating mating configuration.

[0128] The remainder of the floor processing machine of the second embodiment is unchanged relative to Figure 1 that shown.

Claims

1. A floor working machine (10), comprising a support structure and a working assembly (28) for floor working, which is rotatably supported on the support structure about a drive mechanism axis (A) relative to the support structure, wherein, the drive mechanism axis (A) defines a first axial direction (A1) and a second axial direction (A2) extending along the drive mechanism axis (A), a radial direction extending orthogonally thereto, and a first circumferential direction (U1) and a second circumferential direction (U2) around the drive mechanism axis. In a reference state in which the working assembly (28) is ready to rotate about the drive mechanism axis (A), the working assembly (28) is rotatably supported on a first support structure region (30c) by means of a first rotary bearing (57) in a drive mechanism axial end region (28a), and on a second support structure region (30a) by means of a rotary bearing device (77) in a fixed mechanism axial end region (28b) which is axially remote from the drive mechanism axial end region (28a) in the second axial direction (A2). The rotary bearing device (77) has a second rotary bearing (76), a component-side bearing configuration connected to the working assembly (28), and a structure-side bearing configuration connected to the support structure. The structure-side bearing configuration remains connected to the support structure when the support structure and the working assembly are separated. The fixed mechanism axial end region (28b; 128b) has a configuration of a bearing pin (74a) and a bearing sleeve (86; 186) as the component-side bearing configuration, and the second support structure region (30a) has a corresponding other configuration of a bearing pin (74a) and a bearing sleeve (86; 186) as the structure-side bearing configuration. In the reference state, the bearing sleeve (86; 186) surrounds the bearing pin (74a). The bearing pin (74a) and the bearing sleeve (86; 186) are rotatably arranged about the drive mechanism axis (A) relative to the second support structure region (30a) in the reference state, and the bearing pin (74a) and the bearing sleeve (86; 186) can be axially separated from each other as required and thus separated from each other for maintenance, modification, and installation purposes. It is characterized in that the working assembly (28) has a carrying configuration (88; 188) including a carrying surface (88a; 188a) pointing in the first circumferential direction (U1), and the structure-side bearing configuration has a carrying mating configuration (90; 190) including a carrying mating surface (90a) pointing in the second circumferential direction (U2) opposite to the first circumferential direction. In the reference state, the movement spaces (92, 94) of the carrying surface (88a; 188a) and the carrying mating surface (90a) around the drive mechanism axis (A) coincide.

2. The floor working machine (10) according to claim 1, characterized in that, The driven surface (88a; 188a) and the mating driven surface (90a) are in abutting engagement for transmitting force in a first circumferential direction (U1) and a second circumferential direction (U2).

3. The floor working machine (10) according to claim 1 or 2, characterized in that the mating driven configuration (90; 190) has a recess (90d; 190d) or / and a protrusion (90c; 190c).

4. The floor working machine (10) according to claim 3, characterized in that the mating driven configuration (90; 190) has a protrusion (90c; 190c), which is inserted into a recess (90d; 190d) in the bearing configuration on the structural side and is detachably fixed in place here as required.

5. The floor working machine (10) according to claim 1 or 2, characterized in that the working assembly (28) has a drive configuration (46), which is rotatably supported about the drive mechanism axis (A) on the first support structure region (30c) by means of the first rotary bearing (57) in the axial end region (28a) of the drive mechanism and projects axially away from the first support structure region (30c), wherein the drive configuration (46) carries the driven configuration (88).

6. The floor working machine (10) according to claim 5, characterized in that the drive configuration (46) has an end face (60c) pointing in a first axial direction (A1) at its longitudinal end (46b) remote from the first rotary bearing (57), wherein the end face (60c) carries the driven configuration (88).

7. The floor working machine (10) according to claim 5, characterized in that the drive configuration (46) detachably accommodates a milling roller (32; 132) as required, wherein the drive configuration (46) has protruding transmission members (80, 80') for transmitting torque to the milling roller (32; 132) arranged on the drive configuration (46), and at least one transmission member (80') has a driven configuration (88).

8. The floor working machine (10) according to claim 5, characterized in that the drive configuration (46) has a milling roller (32; 132) coaxial with the drive configuration (46) in the reference state, wherein the milling roller (32; 132) includes a milling roller cover (42), a milling cutter holder (33a) is arranged on the outside of the milling roller cover, the milling cutter holder is configured to accommodate milling cutters (33b), wherein the milling roller (32) has a connecting structure (73) extending transversely to the drive mechanism axis (A) in the axial end region (28b) of the fixing mechanism, and the driven configuration (88) carried by the drive configuration (46) extends axially past the connecting structure (73; 173), thereby extending out of the connecting structure (73; 173) to the bearing configuration on the structural side.

9. The surface processing machine (10) according to claim 1 or 2, characterized in that, the working assembly has a milling roller (132), wherein the milling roller (132) includes a milling roller cover, a milling cutter support is arranged on the outer side of the milling roller cover, the milling cutter support is configured to accommodate milling cutters, and the milling roller (132) bears the carrying configuration (188).

10. The surface processing machine (10) according to claim 8, characterized in that, the milling roller (132) has a connecting structure (173) extending transversely to the axis (A) of the drive mechanism in the axial end region (128b) of the fixing mechanism, the connecting structure connects the milling roller cover and the bearing configuration on the component side, and the connecting structure (173) bears the carrying configuration (188).

11. The surface processing machine (10) according to claim 1 or 2, characterized in that, the carrying configuration (88; 188) has an adjustment surface (88b; 188b) that axially points away from the axial end region (28a) of the drive mechanism in the reference state, and the carrying mating configuration (90; 190) has an adjustment mating surface (90b) that axially points towards the axial end region (28a) of the drive mechanism in the reference state, wherein the adjustment surface (88b; 188b) is inclined relative to a reference plane (BE) orthogonal to the axis (A) of the drive mechanism, such that the adjustment surface (88b; 188b) approaches the axial end region (28a) of the drive mechanism along the second circumferential direction (U2) as the circumferential spacing from the carrying surface (88a; 188a) increases, and the adjustment mating surface (90b) is inclined relative to a reference plane (BE) orthogonal to the axis (A) of the drive mechanism, such that the adjustment mating surface (90b) moves away from the axial end region (28a) of the drive mechanism along the first circumferential direction (U1) as the circumferential spacing from the carrying mating surface (90a) increases.

12. The surface processing machine (10) according to claim 11, characterized in that, the adjustment surface (88b; 188b) is inclined relative to the reference plane (BE) at an angle (α) of at least 25°, and / or the adjustment mating surface (90b) is inclined relative to the reference plane (BE) at an angle (β) of at least 25°.

13. The surface processing machine (10) according to claim 1 or 2, characterized in that, the second support structure region (30a) and the bearing configuration on the structure side can swing away from the first support structure region (30c) about a swing axis that is at least inclined relative to the axis (A) of the drive mechanism starting from the reference state.

14. The surface processing machine (10) according to claim 1 or 2, characterized in that, the support structure is connected to the frame (12) of the surface processing machine (10) in the reference state.

15. The surface processing machine (10) according to claim 1, characterized in that, The surface processing machine (10) is a milling machine, a recycling machine, a stabilizer or an open-pit mining machine.

16. The surface processing machine (10) according to claim 12, characterized in that the inclination angle (α) of the adjustment surface (88b; 188b) and the inclination angle (β) of the adjustment mating surface (90b) are numerically the same.

17. The surface processing machine (10) according to claim 13, characterized in that the second support structure region (30a) and the bearing configuration on the structure side can swing away from the first support structure region (30c) about a swing axis orthogonal to the drive mechanism axis (A) starting from the reference state.

18. The surface processing machine (10) according to claim 8, characterized in that the drive configuration (46) has a milling roller (32; 132) coaxial with the drive configuration (46) in the reference state, wherein the milling roller (32; 132) includes a milling roller cover (42), and a milling cutter support (33a) is arranged on the outer side of the milling roller cover, the milling cutter support is configured to accommodate milling cutters (33b), wherein the milling roller (32) has a connection structure (73) extending transversely to the drive mechanism axis (A) in the axial end region (28b) of the fixing mechanism, and wherein a driving configuration (88) carried by the drive configuration (46) extends axially through the connection structure (73; 173), thereby extending out of the connection structure (73; 173) to the bearing configuration on the structure side.

19. A support structure for the surface processing machine (10) according to any one of the preceding claims, the support structure having a plurality of connection configurations for detachably connecting to the frame (12) of the surface processing machine (10) as required, wherein, The support structure includes a working assembly (28) for ground processing, which is rotatably supported on the support structure about the axis (A) of the drive mechanism relative to the support structure. The axis (A) of the drive mechanism defines a first axial direction (A1) and a second axial direction (A2) extending along the axis (A) of the drive mechanism, a radial direction extending orthogonally thereto, and a first circumferential direction (U1) and a second circumferential direction (U2) surrounding the axis (A) of the drive mechanism. In a reference state where the working assembly (28) is ready to rotate about the axis (A) of the drive mechanism, the working assembly (28) is rotatably supported on a first support structure region (30c) by means of a first rotary bearing (57) in a drive mechanism axial end region (28a), and is rotatably supported on a second support structure region (30a) by means of a rotary bearing device (77) in a fixed mechanism axial end region (28b) remote from the drive mechanism axial end region (28a) in the second axial direction (A2). The rotary bearing device (77) has a second rotary bearing (76), a component-side bearing configuration connected to the working assembly (28), and a structure-side bearing configuration connected to the support structure. The fixed mechanism axial end region (28b; 128b) has a configuration of a bearing pin (74a) and a bearing sleeve (86; 186) as the component-side bearing configuration, and the second support structure region (30a) has a corresponding other configuration of a bearing pin (74a) and a bearing sleeve (86; 186) as the structure-side bearing configuration. In the reference state, the bearing sleeve (86; 186) surrounds the bearing pin (74a). The bearing pin (74a) and the bearing sleeve (86; 186) are arranged to be rotatable about the axis (A) of the drive mechanism relative to the second support structure region (30a) in the reference state, and the bearing pin (74a) and the bearing sleeve (86; 186) can be axially separated from each other as required and thus separated from each other for maintenance, modification and installation. It is characterized in that the working assembly (28) has a driving configuration (88; 188) including a driving surface (88a; 188a) pointing in the first circumferential direction (U1), and the structure-side bearing configuration has a driving mating configuration (90; 190) including a driving mating surface (90a) pointing in the second circumferential direction (U2) opposite to the first circumferential direction. In the reference state, the movement spaces (92, 94) of the driving surface (88a; 188a) and the driving mating surface (90a) about the axis (A) of the drive mechanism coincide.

20. The support structure according to claim 19, characterized in that the support structure is a milling roller box (30).

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