EP4212670A1 - Piste caterpillar with a driver's cab and with a rear milling cutter and rear milling cutter for such a piste caterpillar - Google Patents
Piste caterpillar with a driver's cab and with a rear milling cutter and rear milling cutter for such a piste caterpillar Download PDFInfo
- Publication number
- EP4212670A1 EP4212670A1 EP22214911.4A EP22214911A EP4212670A1 EP 4212670 A1 EP4212670 A1 EP 4212670A1 EP 22214911 A EP22214911 A EP 22214911A EP 4212670 A1 EP4212670 A1 EP 4212670A1
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- European Patent Office
- Prior art keywords
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- snow groomer
- tiller
- relative
- driver
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- 238000003801 milling Methods 0.000 title claims description 45
- 230000006870 function Effects 0.000 claims description 9
- 238000006073 displacement reaction Methods 0.000 claims description 5
- 230000003287 optical effect Effects 0.000 claims description 3
- 230000007935 neutral effect Effects 0.000 description 8
- 238000012423 maintenance Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H4/00—Working on surfaces of snow or ice in order to make them suitable for traffic or sporting purposes, e.g. by compacting snow
- E01H4/02—Working on surfaces of snow or ice in order to make them suitable for traffic or sporting purposes, e.g. by compacting snow for sporting purposes, e.g. preparation of ski trails; Construction of artificial surfacings for snow or ice sports ; Trails specially adapted for on-the-snow vehicles, e.g. devices adapted for ski-trails
Definitions
- the invention relates to a snow groomer with a driver's cab and with a rear tiller, which has a support frame which is detachably connected to a rear carrier of the snow groomer, and at least two tiller shafts which are each rotatably mounted in a tiller shaft housing, the tiller shaft housings being adjacent to one another transversely to the towing direction of the rear tiller and aligned at least largely in alignment with one another and are arranged so that they can be articulated to a limited extent relative to one another in their alignment, and with an adjusting device for adjusting and fixing the milling shaft housings relative to one another in different articulated alignments.
- the invention also relates to a rear cutter for a snow groomer of this type, having a carrier frame which carries at least two cutter shaft housings, in which at least one cutter shaft is rotatably mounted, the two cutter shaft housings being adjacent to one another transversely to the towing direction of the rear cutter and being aligned at least largely in alignment with one another in their longitudinal extent and are arranged so that they can be bent relative to one another to a limited extent, and with an adjusting device for adjusting and fixing the milling shaft housing relative to one another in different buckling orientations.
- Such a snow groomer with such a tail cutter is from WO 98/52658 A1 known.
- the well-known rear cutter is arranged at the rear of a snow groomer, which tows the rear cutter over a snowy ground while driving.
- the rear cutter has two cutter shaft housings, in each of which a cutter shaft is rotatably mounted.
- the two tiller shaft housings each extend transversely to the towing direction of the rear tiller approximately over half of the longitudinal alignment of the rear tiller, which extends in the transverse direction.
- the two auger shaft housings are coupled to one another with limited articulation in the middle via a joint arrangement in order to be able to achieve an exactly aligned alignment of the two auger shaft housings, a downwardly kinked, approximately V-shaped buckling alignment and an upwardly kinked, roof-shaped alignment.
- a hydraulic cylinder which extends between the two auger shaft housings and is connected to both auger shaft housings, is assigned to the two auger shaft housings at a distance from the joint arrangement. By appropriate actuation of the hydraulic cylinder, the different buckling orientations of the milling shaft housing can be adjusted relative to one another, including an exactly aligned buckling orientation.
- the object of the invention is to create a snow groomer and a rear tiller of the type mentioned at the outset, which allow simplified operation by a driver of the snow groomer.
- This task is solved for the snow groomer in that a sensor system is provided to detect relative buckling alignments between the milling shaft housings, which is connected to an electronic control unit that evaluates the sensor signals from the sensor system and displays them in an output unit in the driver's cab.
- a sensor system is provided to detect relative buckling alignments between the tiller shaft housings, which is connected to an electronic control unit that evaluates sensor signals from the sensor system and is connected to an interface an output unit is provided in a driver's cab in order to display the respective relative articulation orientations on the output unit when the rear tiller is in the mounted operating state on the snow groomer.
- the snow groomer according to the invention as well as the rear tiller according to the invention considerably simplifies maintenance or shaping of snowy terrain for a person controlling the snow groomer. Because the person receives information about the buckling alignment of the adjacent auger shaft housings directly in the driver's cab, without having to get out of the car and find out about the buckling alignment of the auger shaft housing by inspecting the rear tiller.
- the solution according to the invention is particularly advantageous for designing fun parks.
- the invention is intended for two or more auger shaft housings that adjoin one another transversely to the towing direction, as well as for a corresponding number of two or more auger shafts mounted in the auger shaft housings.
- auger shaft housings If there are more than two auger shaft housings, two immediately adjacent auger shaft housings can always be detected in their kink alignment. With three or more auger shaft housings, a chain of auger shaft housings results, with two adjacent auger shaft housings being coupled to one another, preferably in an articulated manner.
- the auger shaft housings can either be connected to each other directly at the ends by means of a joint arrangement or indirectly via a correspondingly pivotable mounting of the auger shaft housing on the carrier frame. In a neutral buckling orientation, the milling shaft housings are aligned exactly in line with one another in their longitudinal extent. Articulation mobility is provided at least largely in a plane of movement that extends in the vertical direction and transverse to the towing direction of the rear tiller.
- the output unit is preferably provided as a visual output unit for the person controlling the snow groomer.
- the output unit is designed as an acoustic output unit, with information about the evaluated sensor signals being output visually or acoustically, depending on the design of the output unit.
- the control unit is assigned a data memory in which the specified basic alignments of the tiller shaft housings relative to one another are stored, and an operating unit is provided in the driver's cab, which the driver can use to select one of the basic alignments, and the control unit controls the actuating device depending on the made selection of the operating unit.
- the basic orientations stored in the data memory can include a neutral position (neutral articulation orientation), a roof position (milling shaft housing bent upwards in a roof shape) and a V-position (milling shaft housing bent downwards in a V-shape).
- the operating unit has information for the person controlling the snow groomer, which enables the person to select one of the basic alignments and thus to control the control unit so that it activates the adjusting device and sets the correspondingly selected basic alignment for the milling shaft housing.
- the output unit has an optical and/or acoustic display device that can be detected by a driver in the driver's cab.
- the driver is a person who controls the snow groomer. It is possible to design the display device either optically or acoustically or to provide a combined optical and acoustic display device.
- the milling shaft housings are movably coupled to one another at the end by means of a joint arrangement.
- the joint arrangement preferably defines a joint axis aligned in the towing direction of the rear tiller.
- the adjusting device has at least one linear adjusting drive, which is connected to both milling shaft housings at a radial distance from a joint axis of the joint arrangement.
- the linear actuator can advantageously be designed as a hydraulically or pneumatically operated actuating cylinder or as an electric spindle drive.
- the adjusting device is designed in such a way that it enables the articulation angle between the two auger shaft housings to be changed steplessly.
- a displacement sensor system is assigned to the linear actuator.
- the path sensor is preferably assigned to a piston of the hydraulic or pneumatic actuating cylinder or a spindle of the electric spindle drive.
- an angle sensor system is assigned to the joint arrangement.
- the angle sensors detect different angular orientations of the tiller shaft housing relative to one another, ie different articulation angles.
- the adjusting device has a floating function and a locking function.
- the floating function of the adjusting device is to be understood as meaning a non-blocked state in which the milling shaft housings can be moved relative to one another in their articulation angle.
- the locking function means a blocking of the respective articulation angle alignment.
- the floating function has the advantage that the rear tiller can be placed on snowy ground by the person controlling the snow groomer and the tiller shaft housing is automatically aligned with the contour of the surface of the snowy ground. This alignment can then be blocked by the locking function.
- the snow groomer has a vehicle frame to which a chain drive is assigned. On opposite long sides of the vehicle frame, the chain drive has a drive chain that runs around a rear drive wheel, several running wheels and a front tension wheel.
- the snow groomer is equipped with a clearing blade at the front.
- a driver's cab is arranged on the front of the vehicle frame, in which a cockpit is provided for a person controlling the snow groomer. From the cockpit, the person can control driving functions of the snow groomer as well as control attachments at the front or rear.
- the rear tiller 1 is based on the Figures 1 to 5 shown in more detail.
- the rear tiller 1 is towed through the snow groomer on a rear implement carrier of the snow groomer in a ready-to-use state.
- the snow groomer is positioned in front of the rear tiller 1 and stands on the in 1 up-curved snow bed SU.
- the rear tiller 1 is detachably connected by means of a device carrier connection 2 to the rear device carrier, not shown, of the snow groomer.
- the rear tiller 1 has a carrier frame 3, on which the device carrier connection 2 is also fixed.
- the support frame 3 carries two milling shaft housings 4, which are open at the bottom and in each of which a milling shaft 5 is rotatably mounted.
- the two milling shafts 5 can be driven by means of a milling shaft drive, not shown.
- the rear tiller 1 is shown from the front, ie from the snow groomer.
- a finisher arrangement which is provided behind the milling shafts and thus also behind the milling shaft housings 4, is based on FIG 1 and 2 not recognizable and also not shown.
- each auger shaft housing 4 is box-shaped and is suspended from corresponding support arms of the support frame 3 .
- the suspension has limited mobility in order to allow the compensating movements of the milling shaft housing described below.
- the two milling shaft housings 4 are aligned transversely to the towing direction, ie in the longitudinal extension of the milling shafts 5, relative to one another, such as 1 can be easily removed. are in 1 Both milling shaft housings are aligned exactly coaxially to one another in a common alignment.
- the two tiller shaft housings 4 each have ends on the ends, with two inner end ends of the two tiller shaft housings 4 being positioned at a small distance from one another in a central area of the rear tiller 1 .
- the two front ends of the milling shaft housing 4 are connected to one another via a joint arrangement 6 which defines a joint axis extending in the towing direction, ie orthogonally to the plane of the drawing (see also 2 ).
- the two milling shaft housings 4 are consequently connected to one another in an articulated manner via this joint arrangement 6 about the joint axis, such as 2 is easily removable.
- the two milling shaft housings 4 are connected to one another in the region of their upper side via an adjusting device 7, in the present case in the form of a hydraulic adjusting cylinder.
- a pivot point 8 firmly connected to the left auger shaft housing 4 is fixed on the one hand and one to the right auger shaft housing 4 connected pivot point 9 provided on the other hand.
- One end of an actuating piston of the actuating cylinder acts on one pivot point 8 .
- a front end of the cylinder of the actuating cylinder 7 acts on the other pivot point 9 .
- the hydraulic actuating cylinder 7 is controlled by a control device St (see Figures 3 to 5 ) operable, wherein the control device St can hold the actuating cylinder, ie the actuating device 7, also in a floating position in which the actuating piston of the actuating cylinder is linearly movable relative to the cylinder, ie floating.
- a buckling alignment of the two milling shaft housings 4 relative to one another ie pivoting about the joint axis of the joint arrangement 6, can be carried out steplessly in many different angular orientations.
- a neutral position of the two milling shaft housings 5 is shown, in which the two milling shaft housings 4 are exactly coaxially aligned with one another.
- roof positions are shown in which the two milling shaft housings 4 are pivoted upwards so that they are aligned in the manner of a flat roof.
- a V-position is shown, in which the two milling shaft housings 4 are pivoted slightly downwards from the neutral position about the joint axis of the joint arrangement 6, so that when viewed in the towing direction, an angular orientation in the manner of a slight V results.
- the adjusting device 7 serves not only to adjust the buckling alignment of the tiller shaft housing relative to one another, but also to fix the buckling alignment set in each case.
- a sensor system which, in the illustration according to FIGS Figures 3 to 5 is formed by a displacement sensor S 1 on the one hand and an angle sensor S 2 on the other.
- a displacement sensor S 1 on the one hand
- an angle sensor S 2 on the other.
- only the displacement sensor system S 1 or the angle sensor system S 2 can be provided.
- the sensors are connected to the control unit St, which represents an electronic data processing unit.
- the displacement sensor system is assigned to the actuating cylinder of the actuating device 7 in order to detect the extension or retraction paths of the actuating piston relative to the cylinder.
- the angle sensor system S 2 is assigned to the joint arrangement 6 .
- the control unit St detects corresponding sensor signals from the sensors S 1 , S 2 , processes them and is coupled via an interface 10 to an output unit A, which is assigned to the cockpit of the person controlling the snow groomer in the driver's cab.
- the output unit A gives the die Snow groomer controlling person information about the relative buckling orientation of the milling shaft housing 4 relative to each other.
- This information can be visualized in the output unit A by means of schematic representations of the neutral position, the roof-shaped buckling alignment or the V-shaped buckling alignment of the tiller shafts analogous to the representations according to FIG Figures 3, 4 and 5 .
- the output unit can also only output written information about the angular orientation relative to the neutral zero position.
- a control unit B is also provided in the cockpit, which can be activated and operated by the person controlling the snow groomer.
- the operating unit B is connected to the control unit St.
- Data on the neutral position of the tiller shaft housing 4 relative to one another, at least one predetermined V-position and at least one predetermined roof position of the tiller shaft housing 4 relative to one another are predetermined in the control unit St. Using the operating unit B, one of these positions can be controlled by the person controlling the snow groomer, as a result of which the adjusting device 7 aligns the milling shaft housing 4 in the desired relative position.
- the rear cutter 1 is shown in its transport position on the snow groomer, in which the rear cutter 1 is lifted upwards from a snowy ground SU.
- the adjusting device 7 is in its floating position, in which the two milling shaft housings 4 can be pivoted relative to one another, then the buckling alignment of the milling shaft housings 4 relative to one another necessarily adapts to the curvature of the surface of the snowy ground SU.
- the adjusting device 7 can now block the milling shaft housing 4 relative to one another, so that this buckling orientation in the form of a roof position is retained during subsequent towing operation of the rear milling cutter 1 .
- uniform runway surfaces can be achieved for the snow subsoil SU when the snow groomer is working on it.
- the snow groomer according to the invention is particularly suitable for creating fun parks with corresponding hilly or trough surfaces of the snowy ground SU.
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Abstract
Eine derartige Pistenraupe mit einer Heckfräse, die einen Trägerrahmen, der lösbar mit einem Heckträger der Pistenraupe verbunden ist, und wenigstens zwei in jeweils einem Fräswellengehäuse drehbar gelagerte Fräswellen aufweist, wobei die Fräswellengehäuse quer zur Schlepprichtung der Heckfräse zueinander benachbart und zumindest weitgehend fluchtend zueinander ausgerichtet sowie relativ zueinander in ihrer Ausrichtung begrenzt knickbeweglich angeordnet sind, sowie mit einer Stellvorrichtung zur Verstellung und Fixierung der Fräswellengehäuse relativ zueinander in unterschiedlichen Knickausrichtungen ist bekannt.Erfindungsgemäß ist eine Sensorik vorgesehen, um relative Knickausrichtungen zwischen den Fräswellengehäusen zu erfassen, die an eine elektronische Steuereinheit angeschlossen ist, die Sensorsignale der Sensorik auswertet und mit einer Schnittstelle zu einer Ausgabeeinheit in einem Fahrerhaus versehen ist, um die jeweiligen relativen Knickausrichtungen an der Ausgabeeinheit anzuzeigen.Such a snow groomer with a rear cutter, which has a carrier frame that is detachably connected to a rear carrier of the snow groomer, and at least two cutter shafts rotatably mounted in a cutter shaft housing, the cutter shaft housings being adjacent to one another transversely to the towing direction of the rear cutter and aligned at least largely in alignment with one another and are arranged with limited articulation relative to one another, and with an adjusting device for adjusting and fixing the auger shaft housings relative to one another in different buckling alignments. According to the invention, a sensor system is provided to detect relative buckling alignments between the auger shaft housings, which is connected to an electronic control unit , which evaluates the sensor signals from the sensors and is provided with an interface to an output unit in a driver's cab in order to display the respective relative buckling alignments on the output unit.
Description
Die Erfindung betrifft eine Pistenraupe mit einem Fahrerhaus sowie mit einer Heckfräse, die einen Trägerrahmen, der lösbar mit einem Heckträger der Pistenraupe verbunden ist, und wenigstens zwei in jeweils einem Fräswellengehäuse drehbar gelagerte Fräswellen aufweist, wobei die Fräswellengehäuse quer zur Schlepprichtung der Heckfräse zueinander benachbart und zumindest weitgehend fluchtend zueinander ausgerichtet sowie relativ zueinander in ihrer Ausrichtung begrenzt knickbeweglich angeordnet sind, sowie mit einer Stellvorrichtung zur Verstellung und Fixierung der Fräswellengehäuse relativ zueinander in unterschiedlichen Knickausrichtungen. Die Erfindung betrifft zudem eine Heckfräse für eine derartige Pistenraupe mit einem Trägerrahmen, der wenigstens zwei Fräswellengehäuse trägt, in denen wenigstens jeweils eine Fräswelle drehbar gelagert ist, wobei die zwei Fräswellengehäuse quer zur Schlepprichtung der Heckfräse zueinander benachbart und in ihrer Längserstreckung zumindest weitgehend fluchtend zueinander ausgerichtet und relativ zueinander begrenzt knickbeweglich angeordnet sind, sowie mit einer Stellvorrichtung zur Verstellung und Fixierung der Fräswellengehäuse relativ zueinander in unterschiedlichen Knickausrichtungen.The invention relates to a snow groomer with a driver's cab and with a rear tiller, which has a support frame which is detachably connected to a rear carrier of the snow groomer, and at least two tiller shafts which are each rotatably mounted in a tiller shaft housing, the tiller shaft housings being adjacent to one another transversely to the towing direction of the rear tiller and aligned at least largely in alignment with one another and are arranged so that they can be articulated to a limited extent relative to one another in their alignment, and with an adjusting device for adjusting and fixing the milling shaft housings relative to one another in different articulated alignments. The invention also relates to a rear cutter for a snow groomer of this type, having a carrier frame which carries at least two cutter shaft housings, in which at least one cutter shaft is rotatably mounted, the two cutter shaft housings being adjacent to one another transversely to the towing direction of the rear cutter and being aligned at least largely in alignment with one another in their longitudinal extent and are arranged so that they can be bent relative to one another to a limited extent, and with an adjusting device for adjusting and fixing the milling shaft housing relative to one another in different buckling orientations.
Eine derartige Pistenraupe mit einer derartigen Heckfräse ist aus der
Aufgabe der Erfindung ist es, eine Pistenraupe und eine Heckfräse der eingangs genannten Art zu schaffen, die eine vereinfachte Bedienung durch einen Fahrer der Pistenraupe ermöglichen.The object of the invention is to create a snow groomer and a rear tiller of the type mentioned at the outset, which allow simplified operation by a driver of the snow groomer.
Diese Aufgabe wird für die Pistenraupe dadurch gelöst, dass eine Sensorik vorgesehen ist, um relative Knickausrichtungen zwischen den Fräswellengehäusen zu erfassen, die an eine elektronische Steuereinheit angeschlossen ist, die Sensorsignale der Sensorik auswertet und in einer Ausgabeeinheit im Fahrerhaus anzeigt.This task is solved for the snow groomer in that a sensor system is provided to detect relative buckling alignments between the milling shaft housings, which is connected to an electronic control unit that evaluates the sensor signals from the sensor system and displays them in an output unit in the driver's cab.
Für die Heckfräse der eingangs genannten Art wird die der Erfindung zugrunde liegende Aufgabe dadurch gelöst, dass eine Sensorik vorgesehen ist, um relative Knickausrichtungen zwischen den Fräswellengehäusen zu erfassen, die an eine elektronische Steuereinheit angeschlossen ist, die Sensorsignale der Sensorik auswertet und mit einer Schnittstelle zu einer Ausgabeeinheit in einem Fahrerhaus versehen ist, um in montiertem Betriebszustand der Heckfräse an der Pistenraupe die jeweiligen relativen Knickausrichtungen an der Ausgabeeinheit anzuzeigen.For the rear tiller of the type mentioned at the outset, the object on which the invention is based is achieved in that a sensor system is provided to detect relative buckling alignments between the tiller shaft housings, which is connected to an electronic control unit that evaluates sensor signals from the sensor system and is connected to an interface an output unit is provided in a driver's cab in order to display the respective relative articulation orientations on the output unit when the rear tiller is in the mounted operating state on the snow groomer.
Durch die erfindungsgemäße Pistenraupe wie auch durch die erfindungsgemäße Heckfräse ist eine Wartung oder Gestaltung von Schneegelände für eine die Pistenraupe steuernde Person wesentlich vereinfacht. Denn die Person erhält Informationen über die Knickausrichtung der zueinander benachbarten Fräswellengehäuse direkt im Fahrerhaus, ohne dass die Person aussteigen muss und sich durch Besichtigung der Heckfräse über die Knickausrichtung der Fräswellengehäuse informieren muss. Die erfindungsgemäße Lösung ist besonders vorteilhaft für die Gestaltung von Funparks geeignet. Die Erfindung ist für zwei oder mehr Fräswellengehäuse vorgesehen, die quer zur Schlepprichtung aneinanderschließen, wie auch für eine entsprechende Anzahl von zwei oder mehr in den Fräswellengehäusen gelagerten Fräswellen. Bei mehr als zwei Fräswellengehäusen sind jeweils immer zwei unmittelbar benachbarte Fräswellengehäuse in ihrer Knickausrichtung erfassbar. Bei drei oder mehr Fräswellengehäusen ergibt sich demzufolge eine Kette aus Fräswellengehäusen, wobei jeweils zwei benachbarte Fräswellengehäuse vorzugsweise gelenkig miteinander gekoppelt sind. Die Fräswellengehäuse können entweder direkt mittels einer Gelenkanordnung jeweils stirnseitig miteinander verbunden sein oder indirekt über entsprechend schwenkbewegliche Lagerung der Fräswellengehäuse am Trägerrahmen. In einer neutralen Knickausrichtung sind die Fräswellengehäuse in ihrer Längserstreckung exakt fluchtend zueinander ausgerichtet. Eine Knickbeweglichkeit ist zumindest weitgehend in einer Bewegungsebene vorgesehen, die sich in Hochrichtung sowie quer zur Schlepprichtung der Heckfräse erstreckt. Dadurch ergeben sich dach- oder V-förmige Knickausrichtungen. Die Ausgabeeinheit ist vorzugsweise als visuelle Ausgabeeinheit für die die Pistenraupe steuernde Person vorgesehen. Alternativ oder ergänzend ist es möglich, die Ausgabeeinheit als akustische Ausgabeeinheit auszuführen, wobei Informationen über die ausgewerteten Sensorsignale je nach Ausgestaltung der Ausgabeeinheit visuell oder akustisch ausgegeben werden.The snow groomer according to the invention as well as the rear tiller according to the invention considerably simplifies maintenance or shaping of snowy terrain for a person controlling the snow groomer. Because the person receives information about the buckling alignment of the adjacent auger shaft housings directly in the driver's cab, without having to get out of the car and find out about the buckling alignment of the auger shaft housing by inspecting the rear tiller. The solution according to the invention is particularly advantageous for designing fun parks. The invention is intended for two or more auger shaft housings that adjoin one another transversely to the towing direction, as well as for a corresponding number of two or more auger shafts mounted in the auger shaft housings. If there are more than two auger shaft housings, two immediately adjacent auger shaft housings can always be detected in their kink alignment. With three or more auger shaft housings, a chain of auger shaft housings results, with two adjacent auger shaft housings being coupled to one another, preferably in an articulated manner. The auger shaft housings can either be connected to each other directly at the ends by means of a joint arrangement or indirectly via a correspondingly pivotable mounting of the auger shaft housing on the carrier frame. In a neutral buckling orientation, the milling shaft housings are aligned exactly in line with one another in their longitudinal extent. Articulation mobility is provided at least largely in a plane of movement that extends in the vertical direction and transverse to the towing direction of the rear tiller. This results in roof or V-shaped kink alignments. The output unit is preferably provided as a visual output unit for the person controlling the snow groomer. Alternatively or additionally, it is possible to design the output unit as an acoustic output unit, with information about the evaluated sensor signals being output visually or acoustically, depending on the design of the output unit.
In Ausgestaltung der Erfindung ist der Steuereinheit ein Datenspeicher zugeordnet, in dem vorgegebene Grundausrichtungen der Fräswellengehäuse relativ zueinander abgespeichert sind, und im Fahrerhaus ist eine Bedieneinheit vorgesehen, mittels der ein Fahrer eine der Grundausrichtungen auswählen kann, und die Steuereinheit steuert die Stellvorrichtung an abhängig von der getroffenen Auswahl der Bedieneinheit. Die im Datenspeicher abgespeicherten Grundausrichtungen können eine Neutralstellung (neutrale Knickausrichtung), eine Dachstellung (dachförmig nach oben geknickte Fräswellengehäuse) und eine V-Stellung (V-förmig nach unten geknickte Fräswellengehäuse) umfassen. Die Bedieneinheit weist Informationen für die die Pistenraupe steuernde Person auf, die es der Person ermöglichen, eine der Grundausrichtungen auszuwählen und so die Steuereinheit anzusteuern, damit diese die Stellvorrichtung aktiviert und die entsprechend ausgewählte Grundausrichtung für die Fräswellengehäuse einstellt.In an embodiment of the invention, the control unit is assigned a data memory in which the specified basic alignments of the tiller shaft housings relative to one another are stored, and an operating unit is provided in the driver's cab, which the driver can use to select one of the basic alignments, and the control unit controls the actuating device depending on the made selection of the operating unit. The basic orientations stored in the data memory can include a neutral position (neutral articulation orientation), a roof position (milling shaft housing bent upwards in a roof shape) and a V-position (milling shaft housing bent downwards in a V-shape). The operating unit has information for the person controlling the snow groomer, which enables the person to select one of the basic alignments and thus to control the control unit so that it activates the adjusting device and sets the correspondingly selected basic alignment for the milling shaft housing.
In weiterer Ausgestaltung der Erfindung weist die Ausgabeeinheit eine für einen Fahrer in dem Fahrerhaus erfassbare optische und/oder akustische Anzeigeeinrichtung auf. Der Fahrer ist eine die Pistenraupe steuernde Person. Es ist möglich, die Anzeigeeinrichtung entweder optisch oder akustisch zu gestalten oder aber eine kombinierte optische und akustische Anzeigeeinrichtung vorzusehen.In a further embodiment of the invention, the output unit has an optical and/or acoustic display device that can be detected by a driver in the driver's cab. The driver is a person who controls the snow groomer. It is possible to design the display device either optically or acoustically or to provide a combined optical and acoustic display device.
In weiterer Ausgestaltung der Erfindung sind die Fräswellengehäuse stirnseitig mittels einer Gelenkanordnung beweglich aneinander gekoppelt. Die Gelenkanordnung definiert vorzugsweise eine in Schlepprichtung der Heckfräse ausgerichtete Gelenkachse.In a further embodiment of the invention, the milling shaft housings are movably coupled to one another at the end by means of a joint arrangement. The joint arrangement preferably defines a joint axis aligned in the towing direction of the rear tiller.
In weiterer Ausgestaltung der Erfindung weist die Stellvorrichtung wenigstens einen Linearstellantrieb auf, der mit beiden Fräswellengehäusen in radialem Abstand zu einer Gelenkachse der Gelenkanordnung verbunden ist. Der Linearstellantrieb kann vorteilhaft als hydraulisch oder pneumatisch betriebener Stellzylinder oder als elektrischer Spindelantrieb ausgeführt sein. Die Stellvorrichtung ist derart ausgeführt, dass sie eine stufenlose Veränderung der Knickwinkel zwischen den beiden Fräswellengehäusen ermöglicht.In a further embodiment of the invention, the adjusting device has at least one linear adjusting drive, which is connected to both milling shaft housings at a radial distance from a joint axis of the joint arrangement. The linear actuator can advantageously be designed as a hydraulically or pneumatically operated actuating cylinder or as an electric spindle drive. The adjusting device is designed in such a way that it enables the articulation angle between the two auger shaft housings to be changed steplessly.
In weiterer Ausgestaltung der Erfindung ist dem Linearstellantrieb eine Wegsensorik zugeordnet. Die Wegsensorik ist vorzugsweise einem Kolben des hydraulischen oder pneumatischen Stellzylinders oder einer Spindel des elektrischen Spindelantriebs zugeordnet.In a further embodiment of the invention, a displacement sensor system is assigned to the linear actuator. The path sensor is preferably assigned to a piston of the hydraulic or pneumatic actuating cylinder or a spindle of the electric spindle drive.
In weiterer Ausgestaltung der Erfindung ist der Gelenkanordnung eine Winkelsensorik zugeordnet. Die Winkelsensorik erfasst unterschiedliche Winkelausrichtungen der Fräswellengehäuse relativ zueinander, d.h. unterschiedliche Knickwinkel.In a further embodiment of the invention, an angle sensor system is assigned to the joint arrangement. The angle sensors detect different angular orientations of the tiller shaft housing relative to one another, ie different articulation angles.
In weiterer Ausgestaltung der Erfindung weist die Stellvorrichtung eine Schwimmfunktion sowie eine Arretierfunktion auf. Unter der Schwimmfunktion der Stellvorrichtung ist ein nicht blockierter Zustand zu verstehen, in der die Fräswellengehäuse relativ zueinander in ihrer Knickwinkelausrichtung beweglich sind. Unter der Arretierfunktion ist eine Blockierung der jeweiligen Knickwinkelausrichtung zu verstehen. Die Schwimmfunktion hat den Vorteil, dass die Heckfräse durch die die Pistenraupe steuernde Person auf einem Schneeuntergrund abgelegt werden kann und die Fräswellengehäuse sich zwangsläufig entsprechend der Kontur der Oberfläche des Schneeuntergrunds ausrichten. Diese Ausrichtung kann anschließend blockiert werden durch die Arretierfunktion.In a further embodiment of the invention, the adjusting device has a floating function and a locking function. The floating function of the adjusting device is to be understood as meaning a non-blocked state in which the milling shaft housings can be moved relative to one another in their articulation angle. The locking function means a blocking of the respective articulation angle alignment. The floating function has the advantage that the rear tiller can be placed on snowy ground by the person controlling the snow groomer and the tiller shaft housing is automatically aligned with the contour of the surface of the snowy ground. This alignment can then be blocked by the locking function.
Weitere Vorteile und Merkmale der Erfindung ergeben sich aus den Ansprüchen sowie aus der nachfolgenden Beschreibung einer bevorzugten Ausführungsform der Erfindung, die anhand der Zeichnungen dargestellt ist.
- Fig. 1
- zeigt in einer Frontansicht unter Weglassung der Darstellung der Ausführungsform einer erfindungsgemäßen Pistenraupe eine Ausführungsform einer erfindungsgemäßen Heckfräse in Abstand zu einem Schneeuntergrund,
- Fig. 2
- in vergrößerter Darstellung einen Teilbereich der Heckfräse gemäß
Fig. 1 in einer auf dem Schneeuntergrund abgelegten Knickausrichtung und - Fig. 3 bis 5
- schematisch unterschiedliche Ausrichtungen von zwei Fräswellengehäusen der Heckfräse nach den
Fig. 1 und2 abhängig von der Ansteuerung einer entsprechenden Stellvorrichtung.
- 1
- shows an embodiment of a rear tiller according to the invention at a distance from a snow base in a front view with the omission of the representation of the embodiment of a snow groomer according to the invention,
- 2
- an enlarged view of a section of the rear tiller
1 in a buckling orientation deposited on the snow bed, and - Figures 3 to 5
- schematically different alignments of two tiller shaft housings of the rear tiller according to the
1 and2 depending on the control of a corresponding actuator.
Eine anhand der
Heckseitig weist die Pistenraupe - ebenfalls in grundsätzlich bekannter Weise - einen Heckträger auf, an dem als heckseitiges Anbaugerät eine Heckfräse 1 lösbar montiert ist. Die Heckfräse 1 ist anhand der
Die Heckfräse 1 ist von vorne, d.h. von der Pistenraupe aus, dargestellt. Eine Finisheranordnung, die hinter den Fräswellen und damit auch hinter den Fräswellengehäusen 4 vorgesehen ist, ist anhand der
Wie anhand der
Anhand der
Je nach Ansteuerung der Stellvorrichtung 7 kann eine Knickausrichtung der beiden Fräswellengehäuse 4 relativ zueinander, d.h. eine Verschwenkung um die Gelenkachse der Gelenkanordnung 6, stufenlos in vielen verschiedenen Winkelausrichtungen vorgenommen werden. Anhand der
Die Stellvorrichtung 7 dient nicht nur zur Verstellung der Fräswellengehäuse in ihrer Knickausrichtung relativ zueinander, sondern auch zur Fixierung der jeweils eingestellten Knickausrichtung.The adjusting
Die unterschiedlichen Winkelstellungen und demzufolge die unterschiedlichen Knickausrichtungen der Fräswellengehäuse 4 relativ zueinander werden durch eine Sensorik erfasst, die bei der Darstellung nach den
Die Sensorik ist an die Steuereinheit St angeschlossen, die eine elektronische Datenverarbeitungseinheit darstellt. Dabei ist die Wegsensorik dem Stellzylinder der Stellvorrichtung 7 zugeordnet, um Aus- oder Einfahrwege des Stellkolbens relativ zum Zylinder zu erfassen. Die Winkelsensorik S2 ist der Gelenkanordnung 6 zugeordnet. Die Steuereinheit St erfasst entsprechende Sensorsignale der Sensorik S1, S2, verarbeitet diese und ist über eine Schnittstelle 10 mit einer Ausgabeeinheit A gekoppelt, die dem Cockpit der die Pistenraupe steuernden Person in dem Fahrerhaus zugeordnet ist. Die Ausgabeeinheit A gibt der die Pistenraupe steuernden Person Informationen aus über die relative Knickausrichtung der Fräswellengehäuse 4 relativ zueinander. Diese Informationen können in der Ausgabeeinheit A visualisiert sein durch schematische Darstellungen der Neutralstellung, der dachförmigen Knickausrichtung oder der V-förmigen Knickausrichtung der Fräswellen analog der Darstellungen gemäß den
In
Claims (10)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102022200466.3A DE102022200466A1 (en) | 2022-01-18 | 2022-01-18 | Snow groomer with a driver's cab and with a rear tiller and rear tiller for such a snow groomer |
Publications (1)
Publication Number | Publication Date |
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EP4212670A1 true EP4212670A1 (en) | 2023-07-19 |
Family
ID=84541442
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP22214911.4A Pending EP4212670A1 (en) | 2022-01-18 | 2022-12-20 | Piste caterpillar with a driver's cab and with a rear milling cutter and rear milling cutter for such a piste caterpillar |
Country Status (2)
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EP (1) | EP4212670A1 (en) |
DE (1) | DE102022200466A1 (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998052658A1 (en) | 1995-08-08 | 1998-11-26 | Lmc Operating Corp. | Tiller with adjustable depth cutter and snow comb entry angle |
WO2015075670A1 (en) * | 2013-11-20 | 2015-05-28 | Snowgrolic S.A R.L. | A snow tiller for preparing ski slopes |
WO2020165799A1 (en) * | 2019-02-12 | 2020-08-20 | Prinoth S.P.A. | A snow tiller for the preparation of ski runs |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITMI20072096A1 (en) | 2007-10-30 | 2009-04-30 | Rolic Invest Sarl | CONNECTION DEVICE BETWEEN A BAPTIST VEHICLE AND AN EQUIPMENT FOR THE PREPARATION OF THE SNOWY SLOPE OF THE SKI SLOPES AND METHOD OF CONTROL USING THIS LINKING DEVICE |
DE102014200899A1 (en) | 2013-12-20 | 2015-06-25 | Kässbohrer Geländefahrzeug AG | Snow groomer and plow blade for such a snowcat |
-
2022
- 2022-01-18 DE DE102022200466.3A patent/DE102022200466A1/en active Granted
- 2022-12-20 EP EP22214911.4A patent/EP4212670A1/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998052658A1 (en) | 1995-08-08 | 1998-11-26 | Lmc Operating Corp. | Tiller with adjustable depth cutter and snow comb entry angle |
WO2015075670A1 (en) * | 2013-11-20 | 2015-05-28 | Snowgrolic S.A R.L. | A snow tiller for preparing ski slopes |
WO2020165799A1 (en) * | 2019-02-12 | 2020-08-20 | Prinoth S.P.A. | A snow tiller for the preparation of ski runs |
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