EP3184695B1 - Soil compaction sleeve - Google Patents
Soil compaction sleeve Download PDFInfo
- Publication number
- EP3184695B1 EP3184695B1 EP16002673.8A EP16002673A EP3184695B1 EP 3184695 B1 EP3184695 B1 EP 3184695B1 EP 16002673 A EP16002673 A EP 16002673A EP 3184695 B1 EP3184695 B1 EP 3184695B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- drum
- ground compaction
- bandage
- storage means
- interior space
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000005056 compaction Methods 0.000 title claims description 65
- 239000002689 soil Substances 0.000 title description 62
- 238000003860 storage Methods 0.000 claims description 65
- 238000010276 construction Methods 0.000 claims description 62
- 239000012530 fluid Substances 0.000 claims description 52
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 238000009826 distribution Methods 0.000 claims description 4
- 239000000725 suspension Substances 0.000 description 23
- 230000005284 excitation Effects 0.000 description 8
- 238000011161 development Methods 0.000 description 6
- 230000018109 developmental process Effects 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- 238000013461 design Methods 0.000 description 5
- 230000002349 favourable effect Effects 0.000 description 5
- 239000000872 buffer Substances 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 4
- 230000002706 hydrostatic effect Effects 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000013016 damping Methods 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 230000002238 attenuated effect Effects 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000012549 training Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/22—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for consolidating or finishing laid-down unset materials
- E01C19/23—Rollers therefor; Such rollers usable also for compacting soil
- E01C19/236—Construction of the rolling elements, e.g. surface configuration, rolling surface formed by endless track
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/22—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for consolidating or finishing laid-down unset materials
- E01C19/23—Rollers therefor; Such rollers usable also for compacting soil
- E01C19/238—Wetting, cleaning or heating rolling elements, e.g. oiling, wiping, scraping
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/22—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for consolidating or finishing laid-down unset materials
- E01C19/23—Rollers therefor; Such rollers usable also for compacting soil
- E01C19/28—Vibrated rollers or rollers subjected to impacts, e.g. hammering blows
- E01C19/286—Vibration or impact-imparting means; Arrangement, mounting or adjustment thereof; Construction or mounting of the rolling elements, transmission or drive thereto, e.g. to vibrator mounted inside the roll
Definitions
- the invention relates to a soil compacting bandage according to the preamble of patent claim 1.
- a generic soil compaction bandage comprises a bandage casing which surrounds a bandage casing interior.
- the soil compacting bandage is expediently mounted on a suspension in such a way that it can rotate relative to the machine frame of the construction machine about a, as a rule, horizontally extending, axis of rotation.
- the suspension is thus the connection between the bandage casing and the machine frame or the holder on which the bandage casing is mounted on the machine frame.
- the bandage casing is a usually hollow-cylindrical basic body, wherein bandage coats with a polygonal outer circumferential surface and / or rounded front edges are also included in the invention.
- the bandage casing may in this case be designed in different ways with respect to its outer surface, for example as a smooth jacket, polygon jacket, as a Schaffußmantel equipped with pad feet etc.
- the interior of a soil compacting bandage is generally hollow and has hitherto been used, for example, there To accommodate a hydrostatic drive for the rotational drive of the soil compaction bandage.
- a vibration exciter for example, includes an imbalance and to serves to vibrate the bandage in support of the compaction process. Corresponding construction machines are referred to as vibratory rollers.
- Soil compaction drums and construction machines of the type mentioned are, for example, from the utility model DE 29714595 U and the published applications DE 19630576 A1 . DE 10 2014 018 457 A1 . WO 98/17865 . WO 2011/064367 A2 . GB 230 760 A and GB 230 761 A known, to which reference is hereby made.
- a challenge in the design of such construction machines is that the front and rear superstructures of these machines should be designed as flat as possible in order to allow the operator as large a field of view on the ground, especially in the working direction.
- the available space for housing the individual machine components is thus very small.
- it is advantageous if the soil compaction bandages have a large diameter because this means that it is possible to work with the bandages under more favorable operating parameters, that is, for example, a better compaction performance can be achieved. This is due, among other things, to the fact that larger diameter drums have a more favorable rolling factor (also called the Nijboer number).
- N axle load [kg] / (drum width [cm] * drum diameter [cm]).
- the object of the invention is therefore to provide a soil compaction bandage and a construction machine with such a soil compaction bandage, by the construction of the largest possible field of view for the machine operator of the construction machine is ideally possible at the same time the best possible operating parameters of the construction machine.
- the suspension comprises a holding device on which a storage device arranged at least partially in the bandage casing interior is mounted.
- the holding device is designed to rotate relative to the suspension bearing, that is, that the holding device does not rotate with the bandage casing, but is fixed relative to the suspension and thus to the machine frame or stationary.
- the holding device may preferably be positioned outside the bandage casing interior, but more preferably projects from an end face of the bandage casing into the bandage casing interior.
- a storage device is mounted, which extends at least partially into the bandage casing interior. The holding device thus establishes the connection between the suspension and the storage device.
- the stowage device can be stored in the bandage casing interior via the holding device, without the rotation of the bandage casing being transmitted to the stowage device while driving.
- the stuffer though partially located inside the rotating drum shell interior, is held in a fixed position relative to the machine frame of the construction machine by the support means.
- the bandage casing interior can even be used as storage space for components of the construction machine, which, for example, are not in a direct functional relationship with the soil compaction bandage per se.
- the arrangement according to the invention of the storage device thus expands the space available for other components of the construction machine into the interior of the soil compaction support.
- This also means that even the soil compaction bandage itself can be made relatively larger because, considered net, it occupies a smaller percentage of its total volume than space. Compared with the structure known in the prior art, this improves the Nijboer number of the soil compaction bandage, and thus also improves the operating parameters of the construction machine in the working mode. Overall, the construction machine becomes more compact, and because the center of gravity of the construction machine decreases as a result of the use of the drum casing inner space, the tipping safety of the construction machine increases at the same time.
- the storage device is held on the holding device with respect to the axis of rotation in the axial direction, preferably only on one side.
- a combined holding device is conceivable by which the storage device is held by two sides, however, allows a holding device for one-sided holding the storage device greater flexibility with respect to the design of the second end face of the soil compaction bandage.
- the specific embodiment of the holding device may vary. It is essential that the holding device allows secure storage of the storage device on the suspension in the manner according to the invention. In this case, it is preferably provided that the holding device extends from the suspension into the bandage casing interior. In other words, the holding device is designed in such a way that it bridges the gap between the suspension of the bandage and the bandage casing interior. Alternatively, it is also possible for the suspension itself to extend into the bandage casing interior, or for the storage device to extend from the outside into the bandage casing interior.
- the holding device concretely comprises a bearing tongue or a bearing web which protrudes from the first end side of the bandage casing, projecting from the suspension, in particular in the axial direction of the axis of rotation (D), into the bandage casing interior and also preferably below the axis of rotation (D ) is arranged.
- a bearing web thus a fixing part is obtained, via which a stable and reliable mounting of the storage device is made possible on the suspension.
- the stowage device ideally lies on the bearing bar in this case.
- the task of the bearing bar is to hold the stowage device, wherein the weight of the stowage device is preferably distributed optimally on the bearing bar.
- the shape and material of the bearing bar are therefore fundamentally variable and depend in particular on the specific configuration of the storage device.
- the formation of the bearing web in the form of a bearing shell, in particular substantially circular cylinder jacket segment-shaped, is particularly suitable.
- the storage device can rest particularly well on the bearing web and the weight of the storage device is distributed over a particularly large surface of the bearing web or the bearing shell.
- the bandage casing interior can be optimally utilized, since the underside of the bearing bar in the region of the circular cylinder casing segment can approach particularly closely in the inner circumferential surface of the bandage casing.
- the volume occupied by the storage compartment in the bandage casing interior corresponds to a construction space of between 1/4 and 1/3 of the total volume of the bandage casing interior. In this way, sufficient distances between the storage compartment and the bandage casing can be maintained and, moreover, there is still sufficient space for the arrangement of further components in the bandage casing interior, such as a drive unit or an exciter unit.
- the storage device has a shape or a volume distribution which is essentially rotationally symmetrical with respect to the axis of rotation (D) of the bandage casing.
- the storage device can be arranged with particularly efficient use of the existing space in the drum casing interior, which is also in most cases also rotationally symmetrical to the axis of rotation (D).
- an advantageous weight distribution can be ensured.
- the storage device In order to counteract a transmission of these shocks and / or vibrations to the storage device, the storage device according to the invention is mounted vibration-damped against the bandage casing.
- the vibration damping takes place, for example, by vibration dampers, such as rubber bumpers or comparable damping elements, which are arranged directly or indirectly between the drum casing and the storage device.
- vibration dampers such as rubber bumpers or comparable damping elements, which are arranged directly or indirectly between the drum casing and the storage device.
- the damping elements between the holding device for rotation-free storage and an exciter unit for generating vibrations, in particular within the drum casing interior space may be attached.
- the stowage device is attenuated in particular to the same extent relative to the vibrations of the exciter unit as the suspension of the soil compaction bandage and the machine frame of the construction machine.
- the storage device is arranged completely in the bandage casing interior.
- the bandage casing interior can be used in the best possible way.
- a complete arrangement of the storage device in the bandage casing interior means that the storage device does not protrude beyond the end face of the bandage casing.
- the soil compacting bandage measured along its overall extent along the axis of rotation (D)
- the stowage device is mechanically protected by the bandage casing surrounding it to the outside.
- a frontal protection for example in the form of a cover, a wall element, etc., which protects the stowage device in addition to the front side outside of the bandage casing to the outside.
- This face protection can be designed to be rotatable with the bandage casing
- the end protection is fixed relative to the storage device fixed or not with the bandage casing. This facilitates the training and handling of the face protection, for example, to gain access to the storage device.
- the soil compacting drum comprises, in addition to the stowage device, an exciter unit arranged at least partially and in particular completely in the drum casing inner space.
- exciter units are known in the prior art and comprise, for example, an unbalanced weight which can be rotated independently of the drum casing, with which oscillations can be generated which can be transmitted to the drum casing for improving the compaction performance.
- the exciter unit can be designed, for example, as a circular exciter and can comprise an imbalance shaft, which is preferably arranged substantially parallel and in particular coaxial with the axis of rotation of the soil compacting bandage.
- multi-wave exciters are known over the example, directed vibrations can be generated.
- the storage device is designed such that it surrounds the excitation unit, which often comprises, for example, a housing for fastening and encapsulation, in a shell-like manner at least partially and in particular completely.
- the storage device has for this purpose a receiving recess, for example in the form of a groove or a hollow cylindrical space in which the excitation unit is partially located.
- a receiving recess for example in the form of a groove or a hollow cylindrical space in which the excitation unit is partially located.
- the excitation unit is arranged, for example, with the axis of rotation of at least one imbalance weight coaxially to the axis of rotation of the soil compaction bandage.
- the bandage casing is also usually freely movable at least with respect to the imbalance shaft of the exciter unit; The occurring during operation rotation of the bandage sheath is thus not transferred to the exciter unit.
- This can for example be achieved in that, as well as the storage device, the exciter unit is mounted on the suspension of the soil compaction bandage. Ideally, therefore, both the excitation unit and the storage device are suspended from the same or a common support structure.
- a drive unit for example in the form of a hydraulic motor, is arranged at least partially inside the bandage casing interior.
- the drive unit is also arranged on a suspension of the soil compaction bandage.
- the drive unit is preferably opposite to that of the holding device for the storage device lying front side of the bandage sheath arranged.
- the drive unit is often flanged to a washer in the bandage casing interior, preferably via buffer elements, wherein the washer is rotatably connected to the bandage casing.
- the drive unit thus extends from a second end side in the axial direction of the axis of rotation of the bandage casing in the direction of the disk disk and the accumulation device preferably extends from the first end side in the direction of this disk disk.
- the dish washer extends in particular substantially parallel to an end face of the soil compacting bandage and thus perpendicular to the axis of rotation (D).
- the drive unit thus comprises two mutually rotatable sides, a drive side and an output side, wherein the output side opposite the drum casing rotatably, for example, is mounted on the disc, while the other side is rotatably mounted relative to the suspension.
- the dish disc can also be funnel-shaped, wherein the funnel neck preferably extends along the axis of rotation (D) towards the first end side, is tapered and is mounted there on the holding device.
- the bearing of the dish washer on the holding device is in this case in particular rotatable, preferably via a pivot bearing.
- the excitation unit Comparable with the excitation unit, it can also be provided in addition or as an alternative to the drive unit that it is at least partially and in particular completely surrounded by the accumulation device.
- the storage device For specific design of the storage device reference is made to the corresponding explanations to the exciter unit. As a result, the space utilization can be improved overall.
- the soil compacting bandage then preferably comprises a dish washer, which is arranged in the bandage casing interior and fixed relative to the bandage casing. Between the disc and the first end face, along the axis of rotation of the bandage casing and in this order, the exciter unit and the drive unit are arranged. This overall arrangement makes optimal use of the space inside the drum skin.
- the stowage device is fundamentally a device which serves to accommodate, in particular, operating elements of a construction machine with the soil compacting bandage according to the invention.
- the stowage device thus generally designates a device with which, in particular in addition to one in the bandage casing interior of the soil compacting bandage arranged drive unit and / or excitation unit, the free space within the drum casing interior space for accommodating in particular at least one operating element of the construction machine is available.
- the storage device is thus for example a storage compartment, in particular accessible from the outside. This storage compartment may for example be designed to accommodate a part of a vehicle electrical system, such as a fuse and or control box.
- the storage device designed as a storage and / or storage device in particular as a tank or as a battery.
- a battery such as a lithium-ion battery, be used to power electrical components of a construction machine.
- the formation of the storage device as a fluid tank is in many ways particularly advantageous.
- the fluid tank is a water tank, diesel tank or oil tank and the fluid is corresponding to water, diesel or oil.
- Such fluid tanks are required on construction machines for various reasons, for example for supplying a hydraulic circuit or for lubrication purposes (oil tank), for supplying an internal combustion engine (diesel tank) or for operating a sprinkler (water tank).
- the fluid tanks are used in the inventive arrangement to increase the compaction performance of the construction machine by specifically provide additional weight for the soil compaction bandage, which rests on the soil compaction bandage and acts in this manner when driving over a soil substrate compacting on the ground.
- the fluid tank has at least one connection, preferably an inflow and an outflow, via which the fluid tank can be connected to the corresponding fluid supply of the construction machine.
- the connection in particular the inflow, preferably lies outside the bandage casing interior in order to allow convenient accessibility here.
- Such fluid tanks are often made of plastic. With the shaping methods available today, it is possible to design a highly three-dimensionally deformed tank body, which allows optimum utilization of space of the drum casing interior.
- the solution of the problem is still possible with a construction machine with a soil compaction bandage, as has been described above.
- the construction machine may be, for example, a hand-held construction machine, such as a hand-held double vibratory roller.
- a preferred embodiment of the invention is that the construction machine is designed as a self-propelled construction machine, in particular as a roller, especially as a compactor or as a tandem vibratory roller.
- This form of construction machine particularly benefits from the invention, because here the spatial position of the soil compacting bandage or the soil compaction bandages relative to the working position of the machine operator are determined solely by the construction of the construction machine.
- it is often necessary for construction machines of this type that during operation of the dripping of the bandages is performed with water, which should prevent sticking of the bandages by the newly installed road surface. This, in turn, requires the arrangement of water tanks on the construction machine itself.
- these water tanks can be arranged completely or partially in the soil compacting belt (s) of the construction machine so that an arrangement of the water tanks above the soil compaction drums can be avoided, the soil compaction drums overall can be dimensioned larger without affecting the field of view of the machine operator, and thus improves the working behavior of the construction machine (in particular the rolling factor according to Nijboer). It has been found that the advantages of the invention are particularly evident when the construction machine, in particular roller, especially road roller or tandem vibratory roller, a Nijboer number of less than 0.16, in particular less than 0.15 and especially less than 0 , 14.
- the drum diameter is dimensioned to be large enough to have Nijboer numbers of less than 0.16, in particular less than 0.15, and more particularly less than 0.14, in the ratio to the axle load and the drum width given above.
- the construction machine has a connecting line, for example in the form of a hose line, an electrical line, etc., via which the storage device during operation with at least one arranged outside of the bandage casing interior device, such as an internal combustion engine, a sprinkler , an electrical system, etc., can communicate or is in line connection.
- the invention in this context also includes developments in which the storage device is connected via the said connection line with a outside of the bandage casing interior arranged on the construction machine second storage device, specifically a second tank, a second battery, etc.
- this fluid tank can communicate with the second fluid tank for storing the same fluid via the connecting line, so that in this way, for example, several fluid tanks can be used together to supply a sprinkler or the weight distribution within the construction machine is changed or can be optimized.
- a pump is provided, via which the fluid from the first fluid tank in the second fluid tank or to a consumer, such as a sprinkler, an internal combustion engine, etc., can be promoted.
- FIG. 1 shows a side view of a construction machine 1, which is a tandem roller in the present embodiment.
- the construction machine 1 comprises a machine frame 2 and two hollow cylindrical soil compaction bandages 3 a, with which it moves in the working direction A, thereby compacting the ground U.
- a sprinkler B which is fed via a first fluid tank 4a and a second fluid tank 5a.
- the sprinkler is, inter alia, a sprinkler beam from which water exits the bandage outer surface over the longitudinal width of the bandage in the direction of the arrow.
- the sprinkler bar is connected to the fluid tank 4a via the connection line indicated by dashed lines.
- a corresponding sprinkler beam (not shown) present, which is connected to another connection line to the fluid tank 5a.
- a control station 6 is provided for the operator with a control panel containing control and display instruments.
- FIG. 1 Dashed lines are in FIG. 1 further enlarged hollow cylindrical soil compaction bandages 3 indicated that replace the bandages 3 in a preferred embodiment, this obviously a corresponding adjustment of the machine frame takes place, in particular to the effect that sufficient space for the bandages 3 is created.
- the soil compaction bandages 3 exceed the soil compaction bandages 3a in their circumference or bandage diameter.
- the available space for the first fluid tank 4a and the second fluid tank 5a is restricted by the larger soil compaction drums 3, so that they are dimensioned smaller in addition to the adaptation of the machine frame (not shown).
- FIG. 2 a sectional view through a Bodenverdichtungsbandage 3 in the vertical direction and along the axis of rotation D, ie transversely to the forward direction A from Fig. 1 .
- Essential elements of the soil compacting bandage 3 are a hollow cylindrical bandage casing 8, which surrounds a bandage casing interior 9 in the radial direction, starting from its axis of rotation D.
- Suspended is the soil compaction bandage 3 on the machine frame of the construction machine 1 by means of a fork-like suspension, which is arranged in each case on the end faces of the soil compacting bandage 3.
- this suspension comprises a left bandage carrier 10 and on the right side the suspension comprises a right bandage carrier 11 which, unlike the suspensions known from the prior art, comprises a holding device 12 with an integrated bearing bar 13.
- a storage device in the present case in the form of a fluid tank 7 or a battery compartment 7 a (dashed lines), stored in the drum casing interior 9.
- a drive unit 14 with a hydrostatic drive 15 is arranged on the left side of the drum casing inner space 9. Via a coupling disc 16 and rubber buffer 17, the output side 18 of the hydrostatic drive 15 is connected to a plate washer 19, which in turn is non-rotatably welded to the inner circumferential surface of the bandage casing. If the driven side 18 of the hydrostatic drive 15 rotates, thus also the drum casing 8 rotates.
- an exciter unit 20 for generating vibrations is arranged in the bandage interior 9. This is also connected via buffers 21 to the right hinge support 11 of the suspension.
- the excitation unit 20 is mounted in a known manner via pivot bearings on the plate disc 19, so that in this way the vibrations generated by the rotating imbalance shaft 22 of the excitation unit 20 are transmitted to the drum casing 8.
- the bearing web 13 formed as a bearing shell at the lower end of the right-hand bandage carrier 11 projects from the right-hand end side of the bandage casing in the direction of the left end side into the bandage casing interior parallel to the axis of rotation D.
- the bearing bar 13 is arranged on an extension of the bandage carrier in the vertical direction down and formed in the present embodiment in one piece with this, with multi-part variants of the invention are also included.
- the bearing bar can, for example, also be designed as a completely circumferential sleeve element, which enables a particularly stable mounting of the third fluid tank 7 within the bandage casing interior 9.
- the fluid tank 7 With the bearing bar 13 of the fluid tank 7 is connected so that it is rotationally fixed relative to the suspension (specifically the bandage carrier 11) and thus with respect to the machine frame of the construction machine 1.
- the fluid tank 7 thus, although it is located inside the bandage casing, does not rotate with it.
- the fluid tank 7 Via the bearing web 13, the fluid tank 7 is flying i.e.. mounted on one side and is free of projections with respect to both ends of the soil compacting bandage.
- the fluid tank 7 is connected via a connecting line V (only partially shown), for example, to the first fluid tank 4 or a consumer, for example a sprinkler bar.
- a connecting line V (only partially shown)
- the drum casing inner space 9 is used to store water for the sprinkler system of the construction machine 1 by means of the fluid tank 7.
- a pump P which is specifically intended, for example, fluid from the fluid tank 7 in the fluid tank 4 and / or to a working device, for example, depending on the fluid, the sprinkler, a lubrication point, an internal combustion engine, etc., too promote.
- a filling nozzle BF is present on the fluid tank 7. This is located on the bearing front side of the fluid tank 7, in this case as on the right side, and is arranged in the upper region of the fluid tank 7.
- the filling nozzle BF is designed such that it is easily accessible from the outside, without the structural changes to the construction machine must be made (except, of course, the removal of a tank cap.
- the fluid tank 7 is formed overall as a substantially rotationally symmetrical, hollow cylindrical ring, wherein adjoining the cylindrical portion which rests partially on the bearing web 13, a conical region to the left side, which extends almost to the plate disc 19.
- the fluid tank 7 extends over more than 50% of the width B of the soil compaction bandage and lies completely within the bandage casing interior.
- the exciter unit 22 is partially accommodated in the passage cavity of the fluid tank 7 extending along the axis of rotation D.
- the fluid tank 7 thus spans the exciter unit 22.
- the fluid tank is also vibration-decoupled from the exciter unit 22 by the buffer elements 21. Torsional vibrations and / or shocks and impacts of the bandage casing generated by the exciter unit 22 are thus attenuated to the stagnation device, in the present exemplary embodiment the fluid tank 7, transmitted.
- the storage device is, for example, a battery or a fuse and / or electrical circuit box.
- FIG. 3 shows in an exploded view of the soil compaction bandage 3 of FIG. 2 from another perspective.
- the structure of the various components of the soil compacting bandage 3 compared to FIG. 2
- the bandage carrier 10 and 11 the bandage casing 8 and in particular the third fluid tank 7 and the bearing for storing this tank formed web 13, which is part of the holding device 12 on the right bandage carrier 11.
- FIG. 4 shows an alternative arrangement, wherein only the essential differences will be discussed below and reference is otherwise made to the preceding statements to the first embodiment.
- the dish washer 19 is funnel-shaped and thus has, in addition to the left plate splitter, a funnel section which runs to the right and has a positive tapering. This is partially designed as a hollow shaft. In this way, particularly favorable support properties of the disc 19 can be realized.
- the exciter unit 20 is arranged at the bottom in the present embodiment.
- the fluid tank 7 is no longer the rotational axis D formed circumferentially, but as a total hollow cylinder segment.
- the embodiment according to Fig. 4 shows that by an optimal three-dimensional design of the fluid tank 7 an extremely favorable space utilization of the interior 9 of the bandage casing 8 succeeds.
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Description
Die Erfindung betrifft eine Bodenverdichtungsbandage gemäß dem Oberbegriff des Patentanspruchs 1.The invention relates to a soil compacting bandage according to the preamble of
Im Straßen- und Wegebau werden häufig Baumaschinen, wie etwa Walzen, zur Verdichtung des Bodenuntergrundes oder des eingebauten Fahrbahnbelages eingesetzt. Es ist dabei im Stand der Technik bekannt, dass solche Baumaschinen zu diesem Zweck mindestens eine Bodenverdichtungsbandage aufweisen, die gewöhnlich über eine Aufhängung, beispielsweise einen Bandagenträger, an einem Maschinenrahmen der Baumaschine aufgehängt ist. Eine gattungsgemäße Bodenverdichtungsbandage umfasst einen Bandagenmantel, der einen Bandagenmantelinnenraum umgibt. Dabei ist die Bodenverdichtungsbandage zweckmäßig an einer Aufhängung so gelagert, dass sie relativ zu dem Maschinenrahmen der Baumaschine um eine, in der Regel horizontal verlaufende, Drehachse rotieren kann. Bei der Aufhängung handelt es sich somit um die Verbindung zwischen dem Bandagenmantel und dem Maschinenrahmen bzw. um die Halterung, an der der Bandagenmantel an dem Maschinenrahmen gelagert ist. Bei dem Bandagenmantel handelt es sich um einen üblicherweise hohlzylindrischen Grundkörper, wobei von der Erfindung auch Bandagenmäntel mit polygonaler Außenmantelfläche und oder abgerundeten Stirnrändern mit umfasst sind. Abhängig von dem zu verdichtenden Untergrund kann der Bandagenmantel hierbei in Bezug auf seine Außenfläche auf unterschiedliche Arten ausgebildet sein, beispielsweise als Glattmantel, Polygonmantel, als mit Stampffüßen bestückter Schaffußmantel etc. Der Innenraum einer Bodenverdichtungsbandage ist im Regelfall hohl und wird bislang beispielsweise genutzt, um dort einen hydrostatischen Antrieb für den Rotationsantrieb der Bodenverdichtungsbandage unterzubringen. Eine weitere Möglichkeit zur Nutzung des Bandageninnenraumes ist die Unterbringung eines Schwingungserregers, der beispielsweise eine Unwucht umfasst und dazu dient, die Bandage zur Unterstützung des Verdichtungsprozesses in Schwingungen.zu versetzen. Entsprechende Baumaschinen werden als Vibrationswalzen bezeichnet.In road construction and road construction machines, such as rollers, are often used for compacting the ground or the built-in road surface. It is known in the art that such construction machines for this purpose have at least one soil compacting bandage, which is usually suspended by a suspension, such as a bandage carrier, on a machine frame of the construction machine. A generic soil compaction bandage comprises a bandage casing which surrounds a bandage casing interior. In this case, the soil compacting bandage is expediently mounted on a suspension in such a way that it can rotate relative to the machine frame of the construction machine about a, as a rule, horizontally extending, axis of rotation. The suspension is thus the connection between the bandage casing and the machine frame or the holder on which the bandage casing is mounted on the machine frame. The bandage casing is a usually hollow-cylindrical basic body, wherein bandage coats with a polygonal outer circumferential surface and / or rounded front edges are also included in the invention. Depending on the substrate to be compacted, the bandage casing may in this case be designed in different ways with respect to its outer surface, for example as a smooth jacket, polygon jacket, as a Schaffußmantel equipped with pad feet etc. The interior of a soil compacting bandage is generally hollow and has hitherto been used, for example, there To accommodate a hydrostatic drive for the rotational drive of the soil compaction bandage. Another way to use the bandage interior is the Housing a vibration exciter, for example, includes an imbalance and to serves to vibrate the bandage in support of the compaction process. Corresponding construction machines are referred to as vibratory rollers.
Bodenverdichtungsbandagen und Baumaschinen der eingangs genannten Art sind beispielsweise aus dem Gebrauchsmuster
Eine Herausforderung im Design solcher Baumaschinen liegt darin, dass die vorderen und hinteren Aufbauten dieser Maschinen einerseits möglichst flach konzipiert werden sollen, um dem Maschinenführer ein möglichst großes Sichtfeld auf den Untergrund zu ermöglichen, insbesondere in Arbeitsrichtung. Der verfügbare Bauraum zur Unterbringung der einzelnen Maschinenkomponenten ist somit sehr klein. Auf der anderen Seite ist es jedoch vorteilhaft, wenn die Bodenverdichtungsbandagen einen großen Durchmesser aufweisen, weil dies dazu führt, dass mit den Bandagen unter günstigeren Betriebsparametern gearbeitet werden kann, also beispielsweise eine bessere Verdichtungsleistung erzielt werden kann. Dies ist unter anderem darauf zurückzuführen, dass Bandagen mit größerem Durchmesser einen günstigeren Walzfaktor (auch als Nijboer-Zahl bezeichnet) aufweisen. Die Nijboer-Zahl N gibt allgemein die Neigung einer Walze zur Wulstbildung (Schieben) vor der Bandage wieder und errechnet sich nach folgender Formel: N= Achslast [kg] / (Bandagenbreite [cm] * Bandagendurchmesser [cm]). Je kleiner die Nijboer-Zahl ist, desto besser sind daher die Walzeigenschaften der Walze. Infolgedessen ist es also wünschenswert, dass die Verdichtungsbandagen möglichst viel Bauraum einnehmen können, während andere Komponenten der Baumaschine möglichst platzsparend ausgeführt und angeordnet werden sollen, so dass sie das Sichtfeld des Maschinenführers möglichst wenig beeinträchtigen.A challenge in the design of such construction machines is that the front and rear superstructures of these machines should be designed as flat as possible in order to allow the operator as large a field of view on the ground, especially in the working direction. The available space for housing the individual machine components is thus very small. On the other hand, however, it is advantageous if the soil compaction bandages have a large diameter, because this means that it is possible to work with the bandages under more favorable operating parameters, that is, for example, a better compaction performance can be achieved. This is due, among other things, to the fact that larger diameter drums have a more favorable rolling factor (also called the Nijboer number). The Nijboer number N generally indicates the tendency of a roller to bead (push) before the drum and is calculated by the following formula: N = axle load [kg] / (drum width [cm] * drum diameter [cm]). The smaller the Nijboer number, the better the rolling characteristics of the roller. As a result, it is therefore desirable that the compression bandages can take up as much space as possible, while other components of the construction machine should be designed and arranged as space-saving as possible, so that they affect the field of view of the machine operator as little as possible.
Die Aufgabe der Erfindung liegt nun darin, eine Bodenverdichtungsbandage und eine Baumaschine mit einer solchen Bodenverdichtungsbandage anzugeben, durch deren Aufbau ein möglichst großes Sichtfeld für den Maschinenführer der Baumaschine bei idealerweise gleichzeitig möglichst günstigen Betriebsparametern der Baumaschine ermöglicht wird.The object of the invention is therefore to provide a soil compaction bandage and a construction machine with such a soil compaction bandage, by the construction of the largest possible field of view for the machine operator of the construction machine is ideally possible at the same time the best possible operating parameters of the construction machine.
Die Lösung der Aufgabe gelingt mit einer Bodenverdichtungsbandage und einer Baumaschine gemäß den unabhängigen Ansprüchen. Bevorzugte Weiterbildungen sind in den abhängigen Ansprüchen angegeben.The solution of the problem succeeds with a soil compaction bandage and a construction machine according to the independent claims. Preferred developments are specified in the dependent claims.
Der Grundgedanke der Erfindung liegt darin, den Bandagenmantelinnenraum der Bodenverdichtungsbandage als Stauraum zu nutzen und insbesondere Einrichtungen, die bei herkömmlichen Baumaschinen beispielsweise am Maschinenrahmen untergebracht waren, nunmehr wenigstens teilweise in den Innenraum der Bodenverdichtungsbandage hinein zu versetzen. Zu diesem Zweck ist es erfindungsgemäß vorgesehen, dass die Aufhängung eine Halteeinrichtung umfasst, an der eine wenigstens teilweise im Bandagenmantelinnenraum angeordnete Staueinrichtung gelagert ist. Vorzugsweise ist die Halteeinrichtung dabei zur gegenüber der Aufhängung rotationsfreien Lagerung ausgebildet, d.h. dass sich die Halteeinrichtung nicht mit dem Bandagenmantel mitdreht, sondern relativ zur Aufhängung und damit zum Maschinenrahmen feststehend bzw. ortsfest ist. Die Halteeinrichtung kann vorzugsweise außerhalb des Bandagenmantelinnenraums positioniert sein, ragt aber weiter bevorzugt von einer Stirnseite des Bandagenmantels aus kommend in den Bandagenmantelinnenraum hinein. An der Halteeinrichtung ist eine Staueinrichtung gelagert, die sich wenigstens teilweise in den Bandagenmantelinnenraum erstreckt. Die Halteeinrichtung stellt somit die Verbindung zwischen der Aufhängung und der Staueinrichtung her. Mit anderen Worten kann über die Halteeinrichtung die Staueinrichtung im Bandagenmantelinnenraum gelagert werden, ohne dass dabei die Rotation des Bandagenmantels im Fahrbetrieb auf die Staueinrichtung übertragen wird. Die Staueinrichtung wird somit, obwohl sie teilweise im Inneren des rotierenden Bandagenmantelinnenraums liegt, durch die Halteeinrichtung in einer fixen Position relativ zu dem Maschinenrahmen der Baumaschine gehalten. Auf diese Weise kann ein Teil des Bandagenmantelinnenraumes sogar als Stauraum für Komponenten der Baumaschine genutzt werden, die beispielsweise nicht in einem direkten funktionalen Zusammenhang mit der Bodenverdichtungsbandage an sich stehen. Durch die erfindungsgemäße Anordnung der Staueinrichtung wird somit der für andere Komponenten der Baumaschine zur Verfügung stehende Bauraum in den Innenraum der Bodenverdichtungsbandage hinein erweitert. Dies hat gleichzeitig zur Folge, dass auch die Bodenverdichtungsbandage selbst verhältnismäßig größer ausgebildet werden kann, weil sie netto betrachtet einen geringeren Prozentsatz ihres Gesamtvolumens als Bauraum beansprucht. Verglichen mit dem im Stand der Technik bekannten Aufbau verbessert sich so die Nijboer-Zahl der Bodenverdichtungsbandage, und somit verbessern sich auch die Betriebsparameter der Baumaschine im Arbeitsbetrieb. Die Baumaschine wird insgesamt kompakter, und weil durch die Nutzung des Bandagenmantelinnenraumes der Schwerpunkt der Baumaschine sinkt, erhöht sich zugleich die Kippsicherheit der Baumaschine.The basic idea of the invention is to use the bandage casing interior of the soil compacting bandage as storage space and, in particular, to use devices which are conventional Construction machinery, for example, were housed on the machine frame, now at least partially offset in the interior of the soil compacting bandage into it. For this purpose, it is provided according to the invention that the suspension comprises a holding device on which a storage device arranged at least partially in the bandage casing interior is mounted. Preferably, the holding device is designed to rotate relative to the suspension bearing, that is, that the holding device does not rotate with the bandage casing, but is fixed relative to the suspension and thus to the machine frame or stationary. The holding device may preferably be positioned outside the bandage casing interior, but more preferably projects from an end face of the bandage casing into the bandage casing interior. On the holding device, a storage device is mounted, which extends at least partially into the bandage casing interior. The holding device thus establishes the connection between the suspension and the storage device. In other words, the stowage device can be stored in the bandage casing interior via the holding device, without the rotation of the bandage casing being transmitted to the stowage device while driving. Thus, the stuffer, though partially located inside the rotating drum shell interior, is held in a fixed position relative to the machine frame of the construction machine by the support means. In this way, a part of the bandage casing interior can even be used as storage space for components of the construction machine, which, for example, are not in a direct functional relationship with the soil compaction bandage per se. The arrangement according to the invention of the storage device thus expands the space available for other components of the construction machine into the interior of the soil compaction support. This also means that even the soil compaction bandage itself can be made relatively larger because, considered net, it occupies a smaller percentage of its total volume than space. Compared with the structure known in the prior art, this improves the Nijboer number of the soil compaction bandage, and thus also improves the operating parameters of the construction machine in the working mode. Overall, the construction machine becomes more compact, and because the center of gravity of the construction machine decreases as a result of the use of the drum casing inner space, the tipping safety of the construction machine increases at the same time.
Die Staueinrichtung ist an der Halteeinrichtung in Bezug auf die Drehachse in Axialrichtung vorzugsweise nur einseitig gehalten. Zwar ist auch eine kombinierte Halteeinrichtung denkbar, durch die die Staueinrichtung von zwei Seiten gehalten wird, jedoch erlaubt eine Halteeinrichtung zum einseitigen Halten der Staueinrichtung eine größere Flexibilität in Bezug auf die Ausgestaltung der zweiten Stirnseite der Bodenverdichtungsbandage.The storage device is held on the holding device with respect to the axis of rotation in the axial direction, preferably only on one side. Although a combined holding device is conceivable by which the storage device is held by two sides, however, allows a holding device for one-sided holding the storage device greater flexibility with respect to the design of the second end face of the soil compaction bandage.
Die konkrete Ausgestaltung der Halteeinrichtung kann variieren. Wesentlich ist, dass die Halteeinrichtung eine sichere Lagerung der Staueinrichtung an der Aufhängung in der erfindungsgemäßen Weise ermöglicht. Bevorzugt ist es dabei vorgesehen, dass sich die Halteeinrichtung von der Aufhängung bis in den Bandagenmantelinnenraum hinein erstreckt. Die Halteeinrichtung ist mit anderen Worten in der Weise ausgebildet, dass sie den Zwischenraum zwischen der Aufhängung der Bandage und dem Bandagenmantelinnenraum überbrückt. Alternativ ist es auch möglich, dass sich Aufhängung selbst in den Bandagenmantelinnenraum erstreckt oder aber die Staueinrichtung sich von außen in den Bandagenmantelinnenraum erstreckt.The specific embodiment of the holding device may vary. It is essential that the holding device allows secure storage of the storage device on the suspension in the manner according to the invention. In this case, it is preferably provided that the holding device extends from the suspension into the bandage casing interior. In other words, the holding device is designed in such a way that it bridges the gap between the suspension of the bandage and the bandage casing interior. Alternatively, it is also possible for the suspension itself to extend into the bandage casing interior, or for the storage device to extend from the outside into the bandage casing interior.
In einer bevorzugten Ausführungsform umfasst die Halteeinrichtung konkret eine Lagerzunge bzw. einen Lagersteg, der von der ersten Stirnseite des Bandagenmantels kommend, von der Aufhängung vorspringend, insbesondere in Axialrichtung der Drehachse (D), in den Bandagenmantelinnenraum hineinragt und zudem vorzugsweise unterhalb der Drehachse (D) angeordnet ist. Durch den Lagersteg wird somit ein Fixierteil erhalten, über das eine stabile und zuverlässige Halterung der Staueinrichtung an der Aufhängung ermöglicht wird. Die Staueinrichtung liegt in diesem Fall idealerweise auf dem Lagersteg auf. Aufgabe des Lagerstegs ist es, die Staueinrichtung zu halten, wobei sich das Gewicht der Staueinrichtung vorzugsweise optimal auf den Lagersteg verteilen soll. Form und Material des Lagerstegs sind daher grundsätzlich variabel und richten sich insbesondere nach der konkreten Ausgestaltung der Staueinrichtung.In a preferred embodiment, the holding device concretely comprises a bearing tongue or a bearing web which protrudes from the first end side of the bandage casing, projecting from the suspension, in particular in the axial direction of the axis of rotation (D), into the bandage casing interior and also preferably below the axis of rotation (D ) is arranged. Through the bearing web thus a fixing part is obtained, via which a stable and reliable mounting of the storage device is made possible on the suspension. The stowage device ideally lies on the bearing bar in this case. The task of the bearing bar is to hold the stowage device, wherein the weight of the stowage device is preferably distributed optimally on the bearing bar. The shape and material of the bearing bar are therefore fundamentally variable and depend in particular on the specific configuration of the storage device.
Es hat sich jedoch gezeigt, dass im Hinblick auf Raumausnutzung und Lagerstabilität die Ausbildung des Lagersteges in Form einer Lagerschale, insbesondere im Wesentlichen kreiszylindermantelsegmentförmig, besonders geeignet ist. So kann die Staueinrichtung besonders gut auf dem Lagersteg aufliegen und das Gewicht der Staueinrichtung verteilt sich über eine besonders große Oberfläche des Lagerstegs beziehungsweise der Lagerschale. Gleichzeitig kann der Bandagenmantelinnenraum optimal ausgenutzt werden, da sich die Unterseite des Lagersteges im Bereich des Kreiszylindermantelsegments besonders nah in die Innenmantelfläche des Bandagenmantels annähern kann.However, it has been shown that with regard to space utilization and storage stability, the formation of the bearing web in the form of a bearing shell, in particular substantially circular cylinder jacket segment-shaped, is particularly suitable. Thus, the storage device can rest particularly well on the bearing web and the weight of the storage device is distributed over a particularly large surface of the bearing web or the bearing shell. At the same time, the bandage casing interior can be optimally utilized, since the underside of the bearing bar in the region of the circular cylinder casing segment can approach particularly closely in the inner circumferential surface of the bandage casing.
Vorzugsweise entspricht das von dem Staufach im Bandagenmantelinnenraum eingenommene Volumen einem Bauraum von zwischen 1/4 und 1/3 des Gesamtvolumens des Bandagenmantelinnenraumes. Auf diese Weise lassen sich ausreichende Abstände zwischen dem Staufach und dem Bandagenmantel einhalten und zudem bleibt so auch noch ausreichend Platz für die Anordnung weiterer Komponenten im Bandagenmantelinnenraum, wie etwa einer Antriebseinheit oder einer Erregereinheit.Preferably, the volume occupied by the storage compartment in the bandage casing interior corresponds to a construction space of between 1/4 and 1/3 of the total volume of the bandage casing interior. In this way, sufficient distances between the storage compartment and the bandage casing can be maintained and, moreover, there is still sufficient space for the arrangement of further components in the bandage casing interior, such as a drive unit or an exciter unit.
In einer bevorzugten Weiterbildung weist die Staueinrichtung eine Form oder eine Volumenverteilung auf, die im Wesentlichen rotationssymmetrisch zur Drehachse (D) des Bandagenmantels ist. Auf diese Weise lässt sich die Staueinrichtung unter besonders effizienter Nutzung des vorhandenen Platzes im Bandagenmantelinnenraum anordnen, der in den meisten Fällen ebenfalls rotationssymmetrisch zur Drehachse (D) ausgebildet ist. Gleichzeitig kann dadurch eine vorteilhafte Gewichtsverteilung sichergestellt werden.In a preferred development, the storage device has a shape or a volume distribution which is essentially rotationally symmetrical with respect to the axis of rotation (D) of the bandage casing. In this way, the storage device can be arranged with particularly efficient use of the existing space in the drum casing interior, which is also in most cases also rotationally symmetrical to the axis of rotation (D). At the same time an advantageous weight distribution can be ensured.
Im Betrieb ist die Bodenverdichtungsbandage häufig erheblichen Vibrations- und Stoßbelastungen ausgesetzt. Um nun einer Übertragung dieser Stöße und/oder Schwingungen auf die Staueinrichtung entgegen zu wirken, ist die Staueinrichtung erfindungsgemäß gegenüber dem Bandagenmantel schwingungsgedämpft gelagert. Die Schwingungsdämpfung erfolgt beispielsweise durch Schwingungsdämpfer, wie beispielsweise Gummipuffer oder vergleichbare Dämpfungselemente, die direkt oder indirekt zwischen dem Bandagenmantel und der Staueinrichtung angeordnet sind. Beispielsweise kann es vorgesehen sein, dass die Dämpfungselemente zwischen der Halteeinrichtung zur rotationsfreien Lagerung und einer Erregereinheit zur Erzeugung von Schwingungen, insbesondere innerhalb des Bandagenmantelinnenraums, angebracht sein können. Auf diese Art und Weise wird dafür Sorge getragen, dass sich die durch die Erregereinheit zur Unterstützung der Verdichtungsarbeit der Bodenverdichtungsbandage erzeugten Schwingungen nicht in vollem Umfang und idealerweise gar nicht auf die Staueinrichtung übertragen. Die Staueinrichtung ist dabei insbesondere im selben Maße gegenüber den Schwingungen der Erregereinheit gedämpft wie die Aufhängung der Bodenverdichtungsbandage und der Maschinenrahmen der Baumaschine.In operation, the soil compaction bandage is often exposed to significant vibration and shock loads. In order to counteract a transmission of these shocks and / or vibrations to the storage device, the storage device according to the invention is mounted vibration-damped against the bandage casing. The vibration damping takes place, for example, by vibration dampers, such as rubber bumpers or comparable damping elements, which are arranged directly or indirectly between the drum casing and the storage device. For example, it may be provided that the damping elements between the holding device for rotation-free storage and an exciter unit for generating vibrations, in particular within the drum casing interior space, may be attached. In this way, care is taken that the vibrations generated by the exciter unit to assist in the compaction work of the soil compaction bandage are not transferred to the full extent, and ideally not at all, to the stowage facility. The stowage device is attenuated in particular to the same extent relative to the vibrations of the exciter unit as the suspension of the soil compaction bandage and the machine frame of the construction machine.
In einer bevorzugten Weiterbildung ist die Staueinrichtung vollständig im Bandagenmantelinnenraum angeordnet. Auf diese Weise kann der Bandagenmantelinnenraum bestmöglich genutzt werden. Zudem bedeutet eine vollständige Anordnung der Staueinrichtung im Bandagenmantelinnenraum, dass die Staueinrichtung nicht über die Stirnseite des Bandagenmantels hinausragt. Auf diese Weise kann die Bodenverdichtungsbandage, gemessen an ihrer Gesamtausdehnung entlang der Drehachse (D), effektiv möglichst schmal gehalten werden, wodurch sie insbesondere unter engen Einsatzbedingungen ein günstigeres Einsatzverhalten zeigt. Ferner wird dadurch die Staueinrichtung durch den sie umgebenden Bandagenmantel mechanisch nach au-βen hin geschützt. Ergänzend kann es in diesem Zusammenhang vorgesehen sein, dass ferner ein Stirnseitenschutz, beispielsweise in Form einer Abdeckung, eines Wandelementes etc., vorgesehen ist, der die Staueinrichtung ergänzend zur stirnseitigen Außenseite des Bandagenmantels nach außen hin schützt. Dieser Stirnseitenschutz kann mit dem Bandagenmantel drehbar ausgebildet sein, wobei es allerdings bevorzugt ist, wenn der Stirnseitenschutz relativ zur Staueinrichtung feststehend bzw. nicht mit dem Bandagenmantel gedreht wird. Dies erleichtert die Ausbildung und Handhabung des Stirnseitenschutzes, beispielsweise um Zugang zur Staueinrichtung zu erlangen.In a preferred embodiment, the storage device is arranged completely in the bandage casing interior. In this way, the bandage casing interior can be used in the best possible way. In addition, a complete arrangement of the storage device in the bandage casing interior means that the storage device does not protrude beyond the end face of the bandage casing. In this way, the soil compacting bandage, measured along its overall extent along the axis of rotation (D), can be effectively kept as narrow as possible, so that it shows a more favorable application behavior, in particular under narrow operating conditions. Furthermore, the stowage device is mechanically protected by the bandage casing surrounding it to the outside. In addition, it may be provided in this connection that further comprises a frontal protection, for example in the form of a cover, a wall element, etc., is provided, which protects the stowage device in addition to the front side outside of the bandage casing to the outside. This face protection can be designed to be rotatable with the bandage casing However, it is preferred that the end protection is fixed relative to the storage device fixed or not with the bandage casing. This facilitates the training and handling of the face protection, for example, to gain access to the storage device.
Die Vorteile der Erfindung treten besonders deutlich dann hervor, wenn die Bodenverdichtungsbandage ergänzend zur Staueinrichtung eine wenigstens teilweise und insbesondere vollständig im Bandagenmantelinnenraum angeordnete Erregereinheit umfasst. Derartige Erregereinheiten sind im Stand der Technik bekannt und umfassen beispielweise ein unabhängig zum Bandagenmantel drehbares Unwuchtgewicht, mit dem Schwingungen erzeugt werden können, die zur Verbesserung der Verdichtungsleistung auf den Bandagenmantel übertragen werden können. Die Erregereinheit kann dazu beispielsweise als Kreiserreger ausgebildet sein und eine Unwuchtwelle umfassen, die vorzugsweise im Wesentlichen parallel und insbesondere koaxial zur Drehachse der Bodenverdichtungsbandage angeordnet ist. Auch sind Mehrwellenerreger bekannt, über die beispielsweise gerichtete Schwingungen erzeugt werden können. Für diese erfindungsgemäße Weiterbildung ist es nun von Vorteil, wenn die Staueinrichtung derart ausgebildet ist, dass sie die, häufig beispielsweise ein Gehäuse zur Befestigung und Kapselung umfassendes, Erregereinheit in einer Radialrichtung schalenförmig zumindest teilweise und insbesondere vollständig umgibt bzw. umhaust. Die Staueinrichtung weist dazu eine Aufnahmeausnehmung, beispielsweise in Form einer Rinne oder eines hohlzylinderförmigen Raumes auf, in dem die Erregereinheit teilweise liegt. Dadurch gelingt eine besonders optimale Raumausnutzung des Bandagenmantelinnenraums für Bodenverdichtungsbandagen mit innenliegender Erregereinheit. Vorzugsweise ist dabei die Erregereinheit beispielsweise mit der Rotationsachse wenigstens eines Unwuchtgewichts koaxial zur Drehachse der Bodenverdichtungsbandage angeordnet. Der Bandagenmantel ist ferner üblicherweise zumindest gegenüber der Unwuchtwelle der Erregereinheit frei beweglich; die im Arbeitsbetrieb auftretende Rotation des Bandagenmantels überträgt sich somit nicht auf die Erregereinheit. Dies kann beispielsweise dadurch erreicht werden, dass, wie auch die Staueinrichtung, die Erregereinheit an der Aufhängung der Bodenverdichtungsbandage gelagert ist. Idealerweise sind daher sowohl die Erregereinheit als auch die Staueinrichtung an derselben bzw. einer gemeinsamen Tragstruktur aufgehängt.The advantages of the invention are particularly evident when the soil compacting drum comprises, in addition to the stowage device, an exciter unit arranged at least partially and in particular completely in the drum casing inner space. Such exciter units are known in the prior art and comprise, for example, an unbalanced weight which can be rotated independently of the drum casing, with which oscillations can be generated which can be transmitted to the drum casing for improving the compaction performance. For this purpose, the exciter unit can be designed, for example, as a circular exciter and can comprise an imbalance shaft, which is preferably arranged substantially parallel and in particular coaxial with the axis of rotation of the soil compacting bandage. Also multi-wave exciters are known over the example, directed vibrations can be generated. For this development of the invention, it is now advantageous if the storage device is designed such that it surrounds the excitation unit, which often comprises, for example, a housing for fastening and encapsulation, in a shell-like manner at least partially and in particular completely. The storage device has for this purpose a receiving recess, for example in the form of a groove or a hollow cylindrical space in which the excitation unit is partially located. This results in a particularly optimal space utilization of the drum skin interior for Bodenverdichtungsbandagen with internal exciter unit. Preferably, the excitation unit is arranged, for example, with the axis of rotation of at least one imbalance weight coaxially to the axis of rotation of the soil compaction bandage. The bandage casing is also usually freely movable at least with respect to the imbalance shaft of the exciter unit; The occurring during operation rotation of the bandage sheath is thus not transferred to the exciter unit. This can for example be achieved in that, as well as the storage device, the exciter unit is mounted on the suspension of the soil compaction bandage. Ideally, therefore, both the excitation unit and the storage device are suspended from the same or a common support structure.
Für den Fahrantrieb der Bodenverdichtungsbandage ist es bei solchen Bodenverdichtungsbandagen häufig vorgesehen, dass eine Antriebseinheit, beispielsweise in Form eines Hydromotors, wenigstens teilweise im Inneren des Bandagenmantelinnenraums angeordnet ist. Die Antriebseinheit ist ebenfalls an einer Aufhängung der Bodenverdichtungsbandage angeordnet. Die Antriebseinheit ist dabei vorzugsweise auf der der Halteeinrichtung für die Staueinrichtung gegenüber liegenden Stirnseite des Bandagenmantels angeordnet. Zur Übertragung der Antriebsbewegung ist die Antriebseinheit häufig an eine Tellerscheibe im Bandagenmantelinnenraum angeflanscht, vorzugsweise über Pufferelemente, wobei die Tellerscheibe drehfest mit dem Bandagenmantel verbunden ist. Hierbei erstreckt sich die Antriebseinheit somit von einer zweiten Stirnseite aus in Axialrichtung der Drehachse des Bandagenmantels in Richtung der Tellerscheibe und die Staueinrichtung erstreckt sich vorzugsweise von der ersten Stirnseite aus in Richtung dieser Tellerscheibe. Die Tellerscheibe verläuft insbesondere im Wesentlichen parallel zu einer Stirnseite der Bodenverdichtungsbandage und somit senkrecht zur Drehachse (D). Die Antriebseinheit umfasst somit zwei zueinander rotierbare Seiten, eine Antriebsseite und eine Abtriebsseite, wobei die Abtriebsseite gegenüber dem Bandagenmantel drehfest, beispielsweise an der Tellerscheibe gelagert ist, während die andere Seite gegenüber der Aufhängung drehfest gelagert ist.For the propulsion of the soil compacting bandage, it is often provided in such soil compaction bandages that a drive unit, for example in the form of a hydraulic motor, is arranged at least partially inside the bandage casing interior. The drive unit is also arranged on a suspension of the soil compaction bandage. The drive unit is preferably opposite to that of the holding device for the storage device lying front side of the bandage sheath arranged. To transmit the drive movement, the drive unit is often flanged to a washer in the bandage casing interior, preferably via buffer elements, wherein the washer is rotatably connected to the bandage casing. In this case, the drive unit thus extends from a second end side in the axial direction of the axis of rotation of the bandage casing in the direction of the disk disk and the accumulation device preferably extends from the first end side in the direction of this disk disk. The dish washer extends in particular substantially parallel to an end face of the soil compacting bandage and thus perpendicular to the axis of rotation (D). The drive unit thus comprises two mutually rotatable sides, a drive side and an output side, wherein the output side opposite the drum casing rotatably, for example, is mounted on the disc, while the other side is rotatably mounted relative to the suspension.
Die Tellerscheibe kann erfindungsgemäß auch trichterförmig ausgebildet sein, wobei der Trichterhals sich vorzugsweise entlang der Drehachse (D) zur ersten Stirnseite hin erstreckt, verjüngt und dort an der Halteeinrichtung gelagert ist. Die Lagerung der Tellerscheibe an der Halteeinrichtung erfolgt hierbei insbesondere drehbar, vorzugsweise über ein Drehlager.According to the invention, the dish disc can also be funnel-shaped, wherein the funnel neck preferably extends along the axis of rotation (D) towards the first end side, is tapered and is mounted there on the holding device. The bearing of the dish washer on the holding device is in this case in particular rotatable, preferably via a pivot bearing.
Vergleichbar mit der Erregereinheit kann es auch ergänzend oder alternativ für die Antriebseinheit vorgesehen sein, dass diese wenigstens teilweise und insbesondere vollständig von der Staueinrichtung umgeben ist. Zur konkreten Ausbildung der Staueinrichtung wird auf die entsprechenden Ausführungen zur Erregereinheit Bezug genommen. Auch hierdurch kann die Raumausnutzung insgesamt verbessert werden.Comparable with the excitation unit, it can also be provided in addition or as an alternative to the drive unit that it is at least partially and in particular completely surrounded by the accumulation device. For specific design of the storage device reference is made to the corresponding explanations to the exciter unit. As a result, the space utilization can be improved overall.
Die Vorteile der Erfindung treten dann besonders deutlich hervor, wenn die Bodenverdichtungsbandage sowie eine erfindungsgemäße Staueinrichtung in ihrem Bandagenmantelinnenraum sowohl eine Erregereinheit als auch eine Antriebseinheit jeweils wie oben beschrieben umfasst. Weiterhin umfasst die Bodenverdichtungsbandage dann bevorzugt eine Tellerscheibe, die im Bandagenmantelinnenraum angeordnet und gegenüber dem Bandagenmantel fixiert ist. Zwischen der Tellerscheibe und der ersten Stirnseite sind, entlang der Drehachse des Bandagenmantels und in dieser Reihenfolge, die Erregereinheit und die Antriebseinheit angeordnet. Diese Gesamtanordnung nutzt den Platz innerhalb des Bandagenmantelinnenraumes optimal aus.The advantages of the invention are particularly evident when the soil compacting bandage as well as a stowage device according to the invention comprises in its bandage casing interior both an exciter unit and a drive unit respectively as described above. Furthermore, the soil compacting bandage then preferably comprises a dish washer, which is arranged in the bandage casing interior and fixed relative to the bandage casing. Between the disc and the first end face, along the axis of rotation of the bandage casing and in this order, the exciter unit and the drive unit are arranged. This overall arrangement makes optimal use of the space inside the drum skin.
Bei der Staueinrichtung handelt es sich vorliegend grundsätzlich um eine Einrichtung, die zur Unterbringung insbesondere von Betriebselementen einer Baumaschine mit der erfindungsgemäßen Bodenverdichtungsbandage dient. Die Staueinrichtung bezeichnet somit allgemein eine Einrichtung, mit der, insbesondere ergänzend zur einer im Bandagenmantelinnenraum der Bodenverdichtungsbandage angeordneten Antriebseinheit und/oder Erregereinheit, der Freiraum innerhalb des Bandagenmantelinnenraums zur Unterbringung insbesondere wenigstens eines Betriebselementes der Baumaschine nutzbar ist. Im einfachsten Fall ist die Staueinrichtung somit beispielsweise ein Staufach, insbesondere von außen zugänglich. Dieses Staufach kann beispielsweise zur Unterbringung eines Teils einer Fahrzeugelektrik ausgebildet sein, beispielsweise eines Sicherungs- und oder Schaltkastens. Es hat sich allerdings als besonders sinnvoll herausgestellt, wenn die Staueinrichtung als Vorrats- und/oder Speichereinrichtung ausgebildet, insbesondere als Tank oder als Batterie. Beispielsweise kann eine solche Batterie, etwa eine Lithiumionenbatterie, zur Versorgung von elektrischen Komponenten einer Baumaschine eingesetzt werden.In the present case, the stowage device is fundamentally a device which serves to accommodate, in particular, operating elements of a construction machine with the soil compacting bandage according to the invention. The stowage device thus generally designates a device with which, in particular in addition to one in the bandage casing interior of the soil compacting bandage arranged drive unit and / or excitation unit, the free space within the drum casing interior space for accommodating in particular at least one operating element of the construction machine is available. In the simplest case, the storage device is thus for example a storage compartment, in particular accessible from the outside. This storage compartment may for example be designed to accommodate a part of a vehicle electrical system, such as a fuse and or control box. However, it has proven to be particularly useful if the storage device designed as a storage and / or storage device, in particular as a tank or as a battery. For example, such a battery, such as a lithium-ion battery, be used to power electrical components of a construction machine.
Die Ausbildung der Staueinrichtung als Fluidtank, der idealerweise zur Aufnahme und Abgabe eines Fluids ausgebildet ist, ist allerdings gleich in mehrfacher Hinsicht besonders vorteilhaft. Insbesondere ist der Fluidtank ein Wassertank, Dieseltank oder Öltank und das Fluid ist entsprechend Wasser, Diesel oder Öl. Derartige Fluidtanks werden auf Baumaschinen aus unterschiedlichen Gründen benötigt, beispielsweise zur Versorgung eines Hydraulikkreislaufs oder zur Schmierzwecken (Öltank), zur Versorgung einer Brennkraftmaschine (Dieseltank) oder zum Betrieb einer Berieselungsanlage (Wassertank). Als Sekundärfunktion dienen die Fluidtanks bei der erfindungsgemäßen Anordnung zur Steigerung der Verdichtungsleistung der Baumaschine, indem sie gezielt für die Bodenverdichtungsbandage zusätzliches Gewicht bereitstellen, das auf der Bodenverdichtungsbandage lastet und in dieser Weise beim Überfahren eines Bodenuntergrundes verdichtend auf den Bodenuntergrund einwirkt. Wesentlich ist dabei, dass der Fluidtank wenigstens einen Anschluss, vorzugsweise einen Zufluss und einen Abfluss, aufweist, über den der Fluidtank an die entsprechende Flüssigkeitsversorgung der Baumaschine angeschlossen werden kann. Der Anschluss, insbesondere der Zufluss, liegt dabei vorzugsweise außerhalb des Bandagenmantelinnenraums, um hier eine bequeme Zugänglichkeit zu ermöglichen. Derartige Fluidtanks bestehen häufig aus Kunststoff. Mit den heute verfügbaren Formgebungsverfahren ist es möglich, einen hochgradig dreidimensional verformten Tankkörper zu gestalten, der eine optimale Raumausnutzung des Bandagenmantelinnenraums ermöglicht.The formation of the storage device as a fluid tank, which is ideally designed for receiving and delivering a fluid, however, is in many ways particularly advantageous. In particular, the fluid tank is a water tank, diesel tank or oil tank and the fluid is corresponding to water, diesel or oil. Such fluid tanks are required on construction machines for various reasons, for example for supplying a hydraulic circuit or for lubrication purposes (oil tank), for supplying an internal combustion engine (diesel tank) or for operating a sprinkler (water tank). As a secondary function, the fluid tanks are used in the inventive arrangement to increase the compaction performance of the construction machine by specifically provide additional weight for the soil compaction bandage, which rests on the soil compaction bandage and acts in this manner when driving over a soil substrate compacting on the ground. It is essential that the fluid tank has at least one connection, preferably an inflow and an outflow, via which the fluid tank can be connected to the corresponding fluid supply of the construction machine. The connection, in particular the inflow, preferably lies outside the bandage casing interior in order to allow convenient accessibility here. Such fluid tanks are often made of plastic. With the shaping methods available today, it is possible to design a highly three-dimensionally deformed tank body, which allows optimum utilization of space of the drum casing interior.
Die Lösung der Aufgabe gelingt weiterhin mit einer Baumaschine mit einer Bodenverdichtungsbandage, wie sie vorstehend beschrieben worden ist. Bei der Baumaschine kann es sich beispielsweise um eine handgeführte Baumaschine handeln, wie etwa eine handgeführte Doppelvibrationswalze.The solution of the problem is still possible with a construction machine with a soil compaction bandage, as has been described above. The construction machine may be, for example, a hand-held construction machine, such as a hand-held double vibratory roller.
Eine bevorzugte Ausführungsform der Erfindung besteht jedoch darin, dass die Baumaschine als selbstfahrende Baumaschine, insbesondere als Walze, speziell als Walzenzug oder als Tandemvibrationswalze, ausgebildet ist. Diese Form der Baumaschine profitiert ganz besonders von der Erfindung, weil hier die räumliche Lage der Bodenverdichtungsbandage oder der Bodenverdichtungsbandagen relativ zu der Arbeitsposition des Maschinenführers allein durch die Konstruktion der Baumaschine festgelegt sind. Zudem ist es bei Baumaschinen dieses Typs häufig erforderlich, dass während des Arbeitsbetriebs eine Berieselung der Bandagen mit Wasser durchgeführt wird, die ein Verkleben der Bandagen durch den frisch eingebauten Straßenbelag verhindern sollen. Dies erfordert wiederum die Anordnung von Wassertanks an der Baumaschine selbst. Durch die erfindungsgemäße Ausführung der Baumaschine können beispielsweise diese Wassertanks vollständig oder teilweise in der oder den Bodenverdichtungsbandagen der Baumaschine angeordnet werden, so dass eine Anordnung der Wassertanks oberhalb der Bodenverdichtungsbandagen vermieden werden kann, die Bodenverdichtungsbandagen insgesamt größer dimensioniert werden können ohne das Sichtfeld des Maschinenführers zu beeinträchtigen, und sich so das Arbeitsverhalten der Baumaschine (insbesondere der Walzfaktor nach Nijboer) verbessert. Es hat sich gezeigt, dass die Vorteile der Erfindung dann besonders deutlich hervortreten, wenn die Baumaschine, insbesondere Walze, besonders Straßenwalze oder Tandemvibrationswalze, eine Nijboer'sche Zahl von kleiner 0,16, insbesondere von kleiner 0,15 und ganz besonders von kleiner 0,14 aufweist. Der Bandagendurchmesser wird mit anderen Worten derart groß bemessen, das im obenstehend angegebenen Verhältnis zur Achslast und zur Bandagenbreite Nijboer'sche Zahlen von kleiner 0,16, insbesondere von kleiner 0,15 und ganz besonders von kleiner 0,14 vorliegen. Dies ist möglich, dass Teile der Baumaschine, die bisher außerhalb der Bandage angeordnet werden mussten, nunmehr in die Bandage hinein versetzt werden. Dadurch kann der erforderliche Bauraum der Baumaschinen außerhalb der Bandagen reduziert werden mit den vorstehend genannten positiven Folgen.A preferred embodiment of the invention, however, is that the construction machine is designed as a self-propelled construction machine, in particular as a roller, especially as a compactor or as a tandem vibratory roller. This form of construction machine particularly benefits from the invention, because here the spatial position of the soil compacting bandage or the soil compaction bandages relative to the working position of the machine operator are determined solely by the construction of the construction machine. In addition, it is often necessary for construction machines of this type that during operation of the dripping of the bandages is performed with water, which should prevent sticking of the bandages by the newly installed road surface. This, in turn, requires the arrangement of water tanks on the construction machine itself. By the construction of the construction machine according to the invention, for example, these water tanks can be arranged completely or partially in the soil compacting belt (s) of the construction machine so that an arrangement of the water tanks above the soil compaction drums can be avoided, the soil compaction drums overall can be dimensioned larger without affecting the field of view of the machine operator, and thus improves the working behavior of the construction machine (in particular the rolling factor according to Nijboer). It has been found that the advantages of the invention are particularly evident when the construction machine, in particular roller, especially road roller or tandem vibratory roller, a Nijboer number of less than 0.16, in particular less than 0.15 and especially less than 0 , 14. In other words, the drum diameter is dimensioned to be large enough to have Nijboer numbers of less than 0.16, in particular less than 0.15, and more particularly less than 0.14, in the ratio to the axle load and the drum width given above. This is possible that parts of the construction machine, which previously had to be arranged outside the bandage, are now placed in the bandage. As a result, the required space of construction machinery outside the bandages can be reduced with the above positive consequences.
Eine weitere bevorzugte Weiterbildung besteht darin, dass die Baumaschine eine Verbindungsleitung, beispielsweise in Form einer Schlauchleitung, einer elektrischen Leitung etc., aufweist, über die die Staueinrichtung während des Arbeitsbetriebes mit wenigstens einer außerhalb des Bandagenmantelinnenraums angeordneten Einrichtung, wie beispielsweise einem Verbrennungsmotor, einer Berieselungseinrichtung, einem elektrischen Bordnetz etc., kommunizieren kann bzw. in Leitungsverbindung steht. Insbesondere umfasst die Erfindung in diesem Zusammenhang auch Weiterbildungen, bei denen die Staueinrichtung über die genannte Verbindungsleitung mit einer außerhalb des Bandagenmantelinnenraumes an der Baumaschine angeordneten zweiten Staueinrichtung, konkret einem zweiten Tank, einer zweiten Batterie etc., verbunden ist. Handelt es sich bei der Staueinrichtung beispielsweise um einen Fluidtank, kann dieser Fluidtank über die Verbindungsleitung mit dem zweiten Fluidtank zur Bevorratung desselben Fluids kommunizieren, so dass auf diese Weise beispielsweise mehrere Fluidtanks zusammen zur Versorgung einer Berieselungsanlage eingesetzt werden können oder die Gewichtsverteilung innerhalb der Baumaschine verändert oder optimiert werden kann. Insbesondere für diese Weiterbildung kann es ferner vorgesehen sein, dass eine Pumpe vorhanden ist, über die das Fluid von dem ersten Fluidtank in den zweiten Fluidtank oder zu einem Verbraucher, wie beispielsweise einer Berieselungsanlage, einem Verbrennungsmotor etc., gefördert werden kann.A further preferred development is that the construction machine has a connecting line, for example in the form of a hose line, an electrical line, etc., via which the storage device during operation with at least one arranged outside of the bandage casing interior device, such as an internal combustion engine, a sprinkler , an electrical system, etc., can communicate or is in line connection. In particular, the invention in this context also includes developments in which the storage device is connected via the said connection line with a outside of the bandage casing interior arranged on the construction machine second storage device, specifically a second tank, a second battery, etc. If the storage device is, for example, a fluid tank, this fluid tank can communicate with the second fluid tank for storing the same fluid via the connecting line, so that in this way, for example, several fluid tanks can be used together to supply a sprinkler or the weight distribution within the construction machine is changed or can be optimized. In particular, for this development, it may further be provided that a pump is provided, via which the fluid from the first fluid tank in the second fluid tank or to a consumer, such as a sprinkler, an internal combustion engine, etc., can be promoted.
Nachstehend wird die Erfindung anhand der in den Figuren angegebenen Ausführungsbeispiele näher erläutert. Es zeigen schematisch:
- Fig. 1
- eine Seitenansicht auf eine Tandemwalze mit angedeuteter Lage der Fluidtanks und Größenvergleich der erfindungsgemäßen Bodenverdichtungsbandagen mit Bodenverdichtungsbandagen gemäß dem Stand der Technik;
- Fig. 2
- eine Schnittansicht durch eine Bodenverdichtungsbandage in Vertikalrichtung und entlang der Rotationsachse;
- Fig. 3
- eine Explosionsdarstellung einer Bodenverdichtungsbandage; und
- Fig. 4
- eine Schnittansicht durch eine Bodenverdichtungsbandage einer zweiten Ausführungsform in Vertikalrichtung und entlang der Rotationsachse.
- Fig. 1
- a side view of a tandem roller with indicated position of the fluid tanks and size comparison of the invention Bodenverdichtungsagenagen Bodenverdichtungsbandagen according to the prior art;
- Fig. 2
- a sectional view through a soil compaction bandage in the vertical direction and along the axis of rotation;
- Fig. 3
- an exploded view of a soil compaction bandage; and
- Fig. 4
- a sectional view through a soil compaction bandage of a second embodiment in the vertical direction and along the axis of rotation.
Gleiche Bauteile sind in den Figuren mit gleichen Bezugszeichen angegeben, wobei nicht jedes sich in den Figuren wiederholende Bauteil durchgehend separat bezeichnet sein muss.Identical components are indicated in the figures with the same reference numerals, wherein not every repeated in the figures component must be continuously designated separately.
Strichliert sind in
Konkret zeigt
Auf der linken Seite des Bandagenmantelinnenraumes 9 ist eine Antriebseinheit 14 mit einem hydrostatischen Antrieb 15 angeordnet. Über eine Ankoppelscheibe 16 und Gummipuffer 17 ist die Abtriebsseite 18 des hydrostatischen Antriebs 15 mit einer Tellerscheibe 19 verbunden, die wiederum drehfest an der Innenmantelfläche des Bandagenmantels angeschweißt ist. Rotiert die Abtriebsseite 18 des hydrostatischen Antriebs 15, rotiert somit auch der Bandagenmantel 8.On the left side of the drum casing
Auf Höhe der Antriebseinheit 14 und von der gegenüberliegenden rechten Seite der Bodenverdichtungsbandage 3 kommend ist im Bandageninnenraum 9 eine Erregereinheit 20 zur Erzeugung von Schwingungen angeordnet. Diese ist ebenfalls über Puffer 21 mit dem rechten Bandagenträger 11 der Aufhängung verbunden. Die Erregereinheit 20 ist dabei in bekannter Weise über Drehlager an der Tellerscheibe 19 gelagert, so dass auf diese Weise die von der rotierenden Unwuchtwelle 22 der Erregereinheit 20 erzeugten Schwingungen auf den Bandagenmantel 8 übertragen werden.At the height of the
Der am unteren Ende des rechten Bandagenträgers 11 als Lagerschale ausgebildete Lagersteg 13 springt von der rechten Stirnseite des Bandagenmantels kommend in Richtung der linken Stirnseite in den Bandagenmantelinnenraum parallel zur Drehachse D vor. Der Lagersteg 13 ist dabei an einer Verlängerung des Bandagenträgers in Vertikalrichtung nach unten angeordnet und im vorliegenden Ausführungsbeispiel einstückig mit diesem ausgebildet, wobei auch mehrteilige Varianten von der Erfindung mit umfasst sind. Der Lagersteg kann insgesamt beispielsweise auch als vollständig umlaufendes Hülsenelement ausgebildet sein, was eine besonders stabile Lagerung des dritten Fluidtanks 7 innerhalb des Bandagenmantelinnenraums 9 ermöglicht. Mit dem Lagersteg 13 ist der Fluidtank 7 verbunden, so dass dieser drehfest gegenüber der Aufhängung (konkret dem Bandagenträger 11) und damit gegenüber dem Maschinenrahmen der Baumaschine 1 ist. Der Fluidtank 7 dreht sich somit, obwohl er im Inneren des Bandagenmantels angeordnet ist, nicht mit diesem mit. Über den Lagersteg 13 ist der Fluidtank 7 fliegend d.h. einseitig gelagert und ist gegenüber beiden Stirnseiten der Bodenverdichtungsbandage überstandsfrei.The bearing
Der Fluidtank 7 ist über eine Verbindungsleitung V (nur teilweise dargestellt) beispielsweise mit dem ersten Fluidtank 4 oder einem Verbraucher, beispielsweise einem Berieselungsbalken, verbunden. Auf diese Weise wird der Bandagenmantelinnenraum 9 genutzt, um mittels des Fluidtanks 7 Wasser für die Berieselungsanlage der Baumaschine 1 zu speichern. Es kann ferner eine Pumpe P vorhanden sein, die beispielsweise gezielt dazu vorgesehen ist, Fluid aus dem Fluidtank 7 in den Fluidtank 4 und/oder zu einer Arbeitseinrichtung, beispielsweise, abhängig vom Fluid, zur Berieselungseinrichtung, einer Schmierstelle, einem Verbrennungsmotor etc., zu fördern.The
Ferner ist eine Befüllstutzen BF am Fluidtank 7 vorhanden. Dieser befindet sich auf der Lagerstirnseite des Fluidtanks 7, vorliegend als auf der rechten Seite, und ist im oberen Bereich des Fluidtanks 7 angeordnet. Der Befüllstutzen BF ist dabei derart ausgebildet, dass er von außen aus bequem erreichbar ist, ohne das bauliche Veränderungen an der Baumaschine vorgenommen werden müssen (außer selbstverständlich dem Entfernen eines Tankverschlusses.Furthermore, a filling nozzle BF is present on the
Der Fluidtank 7 ist insgesamt als im Wesentlichen rotationssymmetrischer, hohlzylindrischer Ring ausgebildet, wobei sich an den zylindrischen Bereich, der teilweise auf dem Lagersteg 13 aufliegt, ein konischer Bereich zur linken Seite hin anschließt, der sich bis nahezu an die Tellerscheibe 19 erstreckt. Der Fluidtank 7 erstreckt sich dabei über mehr als 50% der Breite B der Bodenverdichtungsbandage und liegt vollständig innerhalb des Bandagenmantelinnenraums. In den sich entlang der Drehachse D erstreckenden Durchgangshohlraum des Fluidtanks 7 ist die Erregereinheit 22 teilweise aufgenommen. Der Fluidtank 7 umspannt somit die Erregereinheit 22.The
Auch der Fluidtank ist gegenüber der Erregereinheit 22 durch die Pufferelemente 21 schwingungsentkoppelt. Von der Erregereinheit 22 erzeugte Drehschwingungen und/oder Stöße und Schläge des Bandagenmantels werden somit gedämpft auf die Staueinrichtung, im vorliegenden Ausführungsbeispiel den Fluidtank 7, übertragen. Dieser Vorteil kommt insbesondere dann zum Tragen, wenn die Staueinrichtung beispielsweise eine Batterie oder ein Sicherungs- und/oder elektrischer Schaltungskasten ist.The fluid tank is also vibration-decoupled from the
Wesentlich ist einerseits, dass die Tellerscheibe 19 trichterförmig ausgebildet ist und somit neben der linken Tellerplatter einen nach rechts verlaufenden, sicher verjüngenden Trichterabschnitt aufweist. Dieser ist teilweise als Hohlwelle ausgebildet. Auf diese Weise können besonders günstige Stützeigenschaften der Tellerscheibe 19 realisiert werden.It is essential, on the one hand, that the
Ferner ist die Erregereinheit 20 beim vorliegenden Ausführungsbeispiel untenliegend angeordnet. Dadurch ist der Fluidtank 7 auch nicht mehr die Rotationsachse D umlaufend ausgebildet, sondern als insgesamt Hohlzylindersegment. Insbesondere das Ausführungsbeispiel gemäß
Claims (15)
- Ground compaction drum (3), comprising:- a drum casing (8),- a drum casing interior space (9), which is surrounded by the drum casing (8),- a mount, which includes at least one drum bracket (10, 11) and in which the drum casing (8) is rotatably mounted about an axis of rotation (D),wherein the mount includes a holding means (12), in which a storage means (7) at least partially arranged in the drum casing interior space (9) is mounted,
characterized in that
the storage means (7) is vibration-dampened vis-à-vis the drum casing (8). - Ground compaction drum (3) according to claim 1,
characterized in that
the storage means (7) is held in the holding means (12) on one side with respect to the axis of rotation (D). - Ground compaction drum (3) according to one of the preceding claims,
characterized in that
the holding means (12) is configured so as to extend from the mount into the drum casing interior space (9). - Ground compaction drum (3) according to one of the preceding claims,
characterized in that
the holding means (12) includes a mounting ledge (13), which extends from the first lateral end and protrudes in the axial direction of the axis of rotation (D) into the drum casing interior space (9) und which is arranged below the axis of rotation (D), and in that the storage means (7) is supported by the mounting ledge (13). - Ground compaction drum (3) according to one of the preceding claims,
characterized in that
the volume occupied by the storage means (7) in the drum casing interior space (9) corresponds to a constructional space of between 1/4 and 1/3 of the total volume of the drum casing interior space (9). - Ground compaction drum (3) according to one of the preceding claims,
characterized in that
the storage means (7) has a shape or volume distribution which is essentially rotationally symmetrical with respect to the axis of rotation (D) of the drum casing (8). - Ground compaction drum (3) according to one of the preceding claims,
characterized in that
the storage means (7) is arranged completely in the drum casing interior space (9). - Ground compaction drum (3) according to one of the preceding claims,
characterized in that
the ground compaction drum includes an exciter unit (20), which protrudes from the first lateral end in the direction of the axis of rotation (D) into the drum casing interior space (9), wherein the storage means (7) at least partially surrounds the exciter unit (20) in a radial direction in a cup-like manner. - Ground compaction drum (3) according to one of the preceding claims,
characterized in that
the ground compaction drum (3) comprises a drive unit (14), which protrudes from the second lateral end into the drum casing interior space (9), and a plate washer (19), which is arranged in the drum casing interior space (9) and which is fixed with respect to the drum casing (8), wherein the drive unit (14) is coupled to the plate washer (19) from the second lateral end, and the storage means (7) extends from the first lateral end until just before the plate washer (19), wherein the plate washer (19) is configured in the shape of a funnel and the funnel neck extends along the axis of rotation (D) toward the first lateral end and is mounted in the holding means (12) there. - Ground compaction drum (3) according to one of claims 1 to 8,
characterized in that
the ground compaction drum (3) comprises a drive unit (14), which extends from the first lateral end and protrudes into the drum casing interior space (9), wherein the storage means (7) at least partially surrounds the drive unit (14) in a radial direction in a cup-like manner. - Ground compaction drum (3) according to claim 7 and claim 10,
characterized in that
the ground compaction drum includes a plate washer (19), which is arranged in the drum casing interior space (9) and which is fixed with respect to the drum casing (8), and in that the exciter unit (20) and the drive unit (14), in this order, are arranged between the plate washer (19) and the first lateral end along the axis of rotation (D). - Ground compaction drum (3) according to one of the preceding claims,
characterized in that
the storage means (7) is configured as a supply and/or storage means, in particular as a tank or as a battery, in particular in that the tank is a fluid tank, in particular a water tank, diesel tank or oil tank configured to accommodate a fluid. - Ground compaction drum (3) according to one of claims 1 to 11,
characterized in that
the storage means (7) is configured as a storage compartment for a part of the vehicle's electronics. - Construction machine (1) for ground compaction, comprising at least one ground compaction drum (3),
characterized in that
the ground compaction drum (3) is configured in accordance with one of the preceding claims and the construction machine (1) is configured as a roller, wherein the roller has a Nijboer factor of less than 0.16. - Construction machine (1) for ground compaction according to claim 14,
characterized in that
the construction machine (1) comprises a connecting cable, via which the storage means (7) can communicate with a second storage means (4, 5) arranged on the construction machine (1) during operation.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102015016627.1A DE102015016627A1 (en) | 2015-12-21 | 2015-12-21 | Soil compaction drum and construction machine for soil compaction |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3184695A1 EP3184695A1 (en) | 2017-06-28 |
EP3184695B1 true EP3184695B1 (en) | 2018-09-19 |
Family
ID=57681189
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16002673.8A Active EP3184695B1 (en) | 2015-12-21 | 2016-12-16 | Soil compaction sleeve |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP3184695B1 (en) |
DE (1) | DE102015016627A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102017011605A1 (en) * | 2017-12-14 | 2019-06-19 | Bomag Gmbh | Self-propelled floor milling machine, especially road milling machine |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB230760A (en) * | 1924-11-28 | 1925-03-19 | William Thomas Bell | Improved construction of tandem road rollers |
GB230761A (en) * | 1924-11-28 | 1925-03-19 | William Thomas Bell | Improvement connected with road rollers |
US2582199A (en) * | 1947-01-24 | 1952-01-08 | Gardner Byrne Construction Com | Roller-type aggregate compacting device |
FR2032795A5 (en) * | 1969-02-07 | 1970-11-27 | Adamovske Strojirny Np | |
DE19630576A1 (en) | 1996-07-30 | 1998-02-05 | Bomag Gmbh | Road roller |
WO1998017865A1 (en) | 1996-10-21 | 1998-04-30 | Ammann Verdichtung Ag | Method of measuring mechanical data of a soil, and of compacting the soil, and measuring or soil-compaction device |
DE29714595U1 (en) | 1997-08-15 | 1997-10-02 | Bomag GmbH, 56154 Boppard | Motorized soil compactor |
DE102009055950A1 (en) | 2009-11-27 | 2011-06-01 | Hamm Ag | Compactor for compacting grounds, has movable drum rotatable around drum axle, where drum part of drum comprises vibration generator that is supported at distance from drum axle in drum |
DE102014018457A1 (en) | 2013-12-30 | 2015-07-02 | Bomag Gmbh | Soil compaction bandage, roller with such a soil compaction bandage, vibration excitation device for a soil compaction bandage and method for soil compaction |
-
2015
- 2015-12-21 DE DE102015016627.1A patent/DE102015016627A1/en not_active Withdrawn
-
2016
- 2016-12-16 EP EP16002673.8A patent/EP3184695B1/en active Active
Also Published As
Publication number | Publication date |
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EP3184695A1 (en) | 2017-06-28 |
DE102015016627A1 (en) | 2017-06-22 |
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