EP0217153B1 - Rotary snow cutter - Google Patents

Rotary snow cutter Download PDF

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Publication number
EP0217153B1
EP0217153B1 EP86112076A EP86112076A EP0217153B1 EP 0217153 B1 EP0217153 B1 EP 0217153B1 EP 86112076 A EP86112076 A EP 86112076A EP 86112076 A EP86112076 A EP 86112076A EP 0217153 B1 EP0217153 B1 EP 0217153B1
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EP
European Patent Office
Prior art keywords
snow
roller
frame
track
tiller
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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.)
Expired - Lifetime
Application number
EP86112076A
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German (de)
French (fr)
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EP0217153A2 (en
EP0217153A3 (en
Inventor
Walter Haug
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Karl Kaessbohrer Fahrzeugwerke GmbH
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Karl Kaessbohrer Fahrzeugwerke GmbH
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Application filed by Karl Kaessbohrer Fahrzeugwerke GmbH filed Critical Karl Kaessbohrer Fahrzeugwerke GmbH
Priority to AT86112076T priority Critical patent/ATE54349T1/en
Publication of EP0217153A2 publication Critical patent/EP0217153A2/en
Publication of EP0217153A3 publication Critical patent/EP0217153A3/en
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Publication of EP0217153B1 publication Critical patent/EP0217153B1/en
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    • 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 present innovation relates to a snow blower for rear attachment to a snow groomer, with a gear for driving at least one milling shaft, a support frame for attaching the snow blower to the snow groomer and with a fixed to the support frame, which extends across the width of the snow blower and is trapezoidal in cross section Impact body on whose underside facing the runway a smoothing device is attached.
  • Such a snow blower is already known in practice (see, for example, EP-A 0 139 865).
  • the support frame of this snow blower extends essentially over its entire width.
  • a gear is attached to one side end of the support frame and is used to drive the milling shaft, which also extends over the entire width of the snow blower.
  • Side plates are attached to the side of the impact body, which are arranged next to the milling shaft and project beyond it in the direction of travel.
  • the impact body has a cover plate located above the snow blower, which is connected in one piece to the impact body.
  • a disadvantage of the known snow blower is that laborious work has to be carried out to replace wear parts, such as the cover, the smoothing device or the milling shafts.
  • the milling shaft which extends across the entire width of the snow blower, is very difficult to handle for installation and removal. Replacing the cover practically requires the snow blower to be completely dismantled and the impact body to be replaced.
  • the innovation is based on the task of creating a snow blower which is significantly improved in its handling, in particular with regard to the ease of repair and the replacement of wear parts.
  • the impact body consists of a hollow profile and forms a central milling frame and the gear is mounted in the center of the milling frame and drives two milling shafts connected to the side of the gear, which at their ends facing away from the gear in at the ends of the Milling frame mounted side bearings are mounted, and that the milling frame is provided with fastening grooves running transversely to the direction of travel, with at least one interchangeable cover profile and an interchangeable smoothing device being inserted in an upper groove facing the milling shafts and in at least one lower groove facing the runway.
  • the impact body now forms a central frame unit to which all essential parts of the snow blower are attached in the manner of the modular technology.
  • To replace the milling shafts for example, only the side bearings have to be removed, after which a milling shaft, which is now only half as long as the conventional milling shaft, can be removed and replaced.
  • the impact body now forms the central milling frame, it is also possible to make the supporting frame for attaching the snow blower to the snow groomer considerably easier.
  • the central milling frame need only be screwed to the supporting frame at a few points, so that the complete replacement of the defective milling part on the snow blower can also be carried out quickly.
  • the cover which is subject to heavy wear can now be simply pulled out of the fastening groove in the worn state and can be replaced by a new cover profile.
  • the ends of the milling frame are freely accessible; the removal of the cover profile is no longer hindered by a gear or other disruptive components.
  • the smoothing device, which is also subject to severe wear can be replaced without an at least partial disassembly of the snow blower being necessary.
  • the milling frame is designed as an extruded or pressed profile made of aluminum.
  • the snow blower is lightened in weight, which also leads to the fact that the support frame can be made considerably weaker.
  • the milling frame has a parallelogram cross-section, a first parallelogram side facing the runway being approximately parallel to the runway and a second, subsequent parallelogram side forming a baffle surface rising obliquely upward in the direction of travel. It is particularly advantageous that in the parallelogram side of the milling frame facing the slope, two fastening grooves are incorporated at the edges for receiving the smoothing device. In this way, the smoothing device can be inserted into two spaced-apart grooves, as a result of which the smoothing device receives a certain rigidity at its part facing the milling frame. By installing two fastening grooves in the parallelogram side of the milling frame facing the slope, the smoothing device can connect seamlessly to the baffle surface of the milling frame.
  • a fastening groove for receiving the cover profile is incorporated on the front edge in the direction of travel of a parallelogram side of the milling frame that faces away from the slope.
  • the cover profile which extends over the milling shaft, can be supported at least partially on the upper parallelogram side of the milling frame.
  • the cover profile is made of resilient plastic. Depending on which snow is milled, the cover profile can then move slightly upwards, thereby preventing damage to the snow blower by chunks of ice or the like.
  • two cover profiles, each adapted to the milling shafts in terms of dimensions, are fitted in the fastening groove symmetrically to the gearbox.
  • the side bearings are screwed onto the ends of the milling frame so that they can be replaced. If the milling shafts are then inserted in the gearbox on the one hand and in the side bearings on the other hand, the corresponding milling shaft can simply be pulled out of the gearbox after unscrewing one of the side bearings without any further work for replacing the milling shaft.
  • the snow blower 1 comprises a support frame 2 for rear attachment to a snow groomer (not shown) and an impact body 3 fastened to the support frame 2 and extending over the entire width of the snow blower.
  • the support frame 2 is fork-shaped and screwed symmetrically to the center of the snow blower 1 with the impact body 3.
  • the impact body 3 itself is designed as a central milling frame, on which the following components are attached in a modular manner.
  • a gear 4 is screwed, which drives two milling shafts 7 and 8 extending on both sides from the gear 4 to the lateral ends 5 and 6 of the milling frame 3.
  • the outer ends 9 and 10 of the milling shafts 7 and 8 are held in side bearings 11 and 12 fastened to the lateral ends 5 and 6 of the milling frame 3.
  • the milling frame 3 consists of a parallelogram-shaped hollow body which can be produced, for example, from aluminum by extrusion.
  • a lower parallelogram side 13 of the milling frame 3 faces the slope and is aligned approximately parallel to it.
  • the parallelogram side 13 is followed by a second parallelogram side 14, which rises obliquely upwards.
  • This parallelogram side is designed as an impact surface and is provided with a wear-reducing plastic covering which is sprayed onto the parallelogram side 14 in the exemplary embodiment shown here.
  • fastening grooves 17 and 18 are let in, which extend over the entire width of the milling frame 3.
  • a smoothing device 19 is fastened in the fastening grooves 17 and 18 and is inserted with its projections 20 into the fastening grooves 17 and 18.
  • the projections 20 are engaged behind by the fastening grooves 17 and 18, so that a further fastening of the smoothing device is not necessary.
  • the smoothing device 19 extends over the entire width of the milling cutter and is made of plastic. In the front area, it has a part 21 which is approximately triangular in shape and which is joined to the rear by a plate-shaped, more flexible part 22.
  • On the underside of the smoothing device relatively narrow ribs 23 extending in the direction of travel are attached in three transverse rows. The transverse rows of the ribs 23 extend over the entire width of the smoothing device 19.
  • a fastening groove 26 is also incorporated in the region of the front edge 25, which extends over the entire width of the milling frame 3.
  • a cover profile made of a resilient plastic is fastened, which extends in the extension of the parallelogram side 24 as seen in the direction of travel and ends in an arc directed towards the slope.
  • This cover profile like the smoothing device, can also be inserted into the fastening groove 26, which engages behind a projection 28 of the cover profile 27, so that a further fastening of the cover profile 27 is not necessary.
  • Two of the cover profiles 27 are provided side by side, one each extending from the gear unit to the lateral ends 5 and 6 of the milling frame 3.
  • the milling shafts 7 and 8 are inserted into the gear 4 on the one hand and into the side bearings 11 and 12 screwed to the lateral ends 5 and 6 of the milling frame 3 on the other hand.
  • FIG. 1 the components of the snow blower 1 are shown individually in plan view; they can also be seen in a side view. It can be seen particularly well that the snow blower 1 is constructed from only a very few parts which are very easy to replace. All wearing parts are attached to the central milling frame 3, so that depending on the wear of the snow blower, either the entire milling frame 3 is unscrewed from the supporting frame 2 and replaced by a new one, or only individual wearing parts are replaced.
  • the smoothing device 19 designed as a wearing part can be removed from the central milling frame 3 simply by pulling out of the fastening grooves 17 and 18 and replaced by inserting a new smoothing device 19. In the same way, the replacement of the cover profiles 27 is possible.
  • To replace a ver closed milling shaft only one side bearing 11 or 12 has to be unscrewed, after which the corresponding milling shaft 7 or 8 can then be pulled out of the transmission 4. The installation of a new milling shaft is carried out in the reverse order.
  • the cover profile would have two projections.
  • the lateral ends 5 and 6 of the milling frame 3 can be closed by side plates, which could then simultaneously take over the lateral locking of the two cover profiles and the smoothing device.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Soil Working Implements (AREA)
  • Cleaning Of Streets, Tracks, Or Beaches (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Shovels (AREA)
  • Road Repair (AREA)
  • Harvester Elements (AREA)
  • Materials Applied To Surfaces To Minimize Adherence Of Mist Or Water (AREA)

Abstract

The present invention relates to a snow tiller for rearmounting on a track maintenance vehicle. The snow tiller comprises a transmission for driving at least one tiller shaft, a carrier frame for mounting the snow tiller on the track maintenance vehicle, and a baffle body of trapezoidal cross-section extending over the width of the snow tiller. A levelling attachment is secured to the underside of the baffle body facing the track surface. With a view to facilitating repair and maintenance operations and replacement of wear components, the baffle body is formed as a tubular profile member forming a central tiller frame. The transmission is mounted at the center of the tiller frame and drives to tiller shafts laterally connected to the transmission. The ends of the tiller shafts facing away from the transmission are mounted in outer bearings secured to the ends of the tiller frame.

Description

Die vorliegende Neuerung betrifft eine Schneefräse für den Heckanbau an ein Pistenfahrzeug, mit einem Getriebe zum Antrieb mindestens einer Fräswelle, einem Tragrahmen für die Anbringung der Schneefräse am Pistenfahrzeug und mit einem an dem Tragrahmen befestigten, sich über die Breite der Schneefräse erstreckenden und im Querschnitt trapezförmigen Prallkörper, an dessen der Piste zugewandten Unterseite eine Glätteinrichtung angebracht ist.The present innovation relates to a snow blower for rear attachment to a snow groomer, with a gear for driving at least one milling shaft, a support frame for attaching the snow blower to the snow groomer and with a fixed to the support frame, which extends across the width of the snow blower and is trapezoidal in cross section Impact body on whose underside facing the runway a smoothing device is attached.

Eine derartige Schneefräse ist aus der Praxis bereits bekannt (siehe z. B. EP-A 0 139 865). Der Tragrahmen dieser Schneefräse erstreckt sich im wesentlichen über deren gesamte Breite. An einem seitlichen Ende des Tragrahmens ist ein Getriebe angebracht, mit welchem die sich ebenfalls über die gesamte Breite der Schneefräse erstreckende Fräswelle angetrieben wird. Seitlich an dem Prallkörper sind Seitenbleche angebracht, welche neben der Fräswelle angeordnet sind und diese in Fahrtrichtung überragen. Der Prallkörper weist ein oberhalb der Schneefräse liegendes Abdeckblech auf, welches einstückig mit dem Prallkörper verbunden ist.Such a snow blower is already known in practice (see, for example, EP-A 0 139 865). The support frame of this snow blower extends essentially over its entire width. A gear is attached to one side end of the support frame and is used to drive the milling shaft, which also extends over the entire width of the snow blower. Side plates are attached to the side of the impact body, which are arranged next to the milling shaft and project beyond it in the direction of travel. The impact body has a cover plate located above the snow blower, which is connected in one piece to the impact body.

Nachteilig bei der bekannten Schneefräse ist es, daß zum Auswechseln von Verschleißteilen, wie beispielsweise der Abdeckung, der Glätteinrichtung oder auch der Fräswellen umständliche Arbeiten durchgeführt werden müssen. Die sich über die gesamte Breite der Schneefräse erstreckende Fräswelle ist zum Ein- und Ausbau nur sehr schwer handhabbar. Ein Auswechseln der Abdeckung erfordert praktisch die vollständige Zerlegung der Schneefräse und das Austauschen des Prallkörpers.A disadvantage of the known snow blower is that laborious work has to be carried out to replace wear parts, such as the cover, the smoothing device or the milling shafts. The milling shaft, which extends across the entire width of the snow blower, is very difficult to handle for installation and removal. Replacing the cover practically requires the snow blower to be completely dismantled and the impact body to be replaced.

Demgegenüber liegt der Neuerung die Aufgabe zugrunde, eine Schneefräse zu schaffen, welche in ihrer Handhabung wesentlich verbessert wird, insbesondere was die Reparaturfreundlichkeit und das Auswechseln von Verschleißteilen anbetrifft.In contrast, the innovation is based on the task of creating a snow blower which is significantly improved in its handling, in particular with regard to the ease of repair and the replacement of wear parts.

Diese Aufgabe wird dadurch gelöst, daß der Prallkörper aus einem Hohlprofil besteht und einen zentralen Fräsrahmen bildet und das Getriebe in der Mitte des Fräsrahmens angebracht ist und zwei seitlich mit dem Getriebe verbundene Fräswellen antreibt, die an ihren dem Getriebe abgewandten Enden in an den Enden des Fräsrahmens angebrachten Seitenlagern gelagert sind, und daß der Fräsrahmen mit quer zur Fahrtrichtung verlaufenden befestigungsnuten versehen ist, wobei in einer oberen, den Fräswellen zugewandten Nut mindestens ein auswechselbares Abdeckprofil und in zumindest einer unteren, der Piste zugewandten Nut eine auswechselbare Glätteinrichtung eingeschoben befestigt ist.This object is achieved in that the impact body consists of a hollow profile and forms a central milling frame and the gear is mounted in the center of the milling frame and drives two milling shafts connected to the side of the gear, which at their ends facing away from the gear in at the ends of the Milling frame mounted side bearings are mounted, and that the milling frame is provided with fastening grooves running transversely to the direction of travel, with at least one interchangeable cover profile and an interchangeable smoothing device being inserted in an upper groove facing the milling shafts and in at least one lower groove facing the runway.

Diese Lösung bringt bezüglich der Handhabung der Schneefräse gravierende Vorteile. Nunmehr bildet der Prallkörper eine zentrale Rahmeneinheit, an welcher nach Art der Modultechnik alle wesentlichen Teile der Schneefräse angebracht sind. Zum Auswechseln der Fräswellen sind beispielsweise lediglich die Seitenlager abzunehmen, wonach dann eine Fräswelle, die nun bloß noch halb so lang wie die herkömmliche Fräswelle ist, herausgenommen und ausgetauscht werden kann. Dadurch daß nunmehr der Prallkörper den zentralen Fräsrahmen bildet, ist es auch möglich, den Tragrahmen für die Anbringung der Schneefräse am Pistenfahrzeug erheblich leichter auszubilden. Der zentrale Fräsrahmen braucht lediglich an wenigen Stellen mit dem Tragrahmen verschraubt zu sein, so daß auch der vollständige Austausch des defekten Frästeiles an der Schneefräse schnell vonstatten geht. Ganz besonders günstig bei der neuerungsgemäßen Ausbildung der Schneefräse ist es, daß die starkem Verschleiß unterworfene Abdeckung nunmehr im verschlissenen Zustand einfach aus der Befestigungsnut herausgezogen werden kann und durch ein neues Abdeckprofil ersetzt werden kann. Dabei sind die Enden des Fräsrahmens frei zugänglich; die Herausnahme des Abdeckprofiles wird nicht mehr durch ein Getriebe oder andere störende Bauteile behindert. In gleicher Weise kann auch die einem ebenfalls starken Verschleiß unterliegende Glätteinrichtung ausgewechselt werden, ohne daß dazu eine zumindest teilweise Zerlegung der Schneefräse notwendig wäre.This solution has serious advantages when it comes to handling the snow blower. The impact body now forms a central frame unit to which all essential parts of the snow blower are attached in the manner of the modular technology. To replace the milling shafts, for example, only the side bearings have to be removed, after which a milling shaft, which is now only half as long as the conventional milling shaft, can be removed and replaced. Because the impact body now forms the central milling frame, it is also possible to make the supporting frame for attaching the snow blower to the snow groomer considerably easier. The central milling frame need only be screwed to the supporting frame at a few points, so that the complete replacement of the defective milling part on the snow blower can also be carried out quickly. It is particularly favorable with the new design of the snow blower that the cover which is subject to heavy wear can now be simply pulled out of the fastening groove in the worn state and can be replaced by a new cover profile. The ends of the milling frame are freely accessible; the removal of the cover profile is no longer hindered by a gear or other disruptive components. In the same way, the smoothing device, which is also subject to severe wear, can be replaced without an at least partial disassembly of the snow blower being necessary.

Vorteilhaft ist es, wenn der Fräsrahmen als Strangguß- oder -pressprofil aus Aluminium ausgebildet ist. Dadurch wird zum einen die Schneefräse gewichtsmäßig erleichtert, was darüberhinaus aber auch dazu führt, daß der Tragrahmen erheblich schwächer ausgebildet werden kann.It is advantageous if the milling frame is designed as an extruded or pressed profile made of aluminum. As a result, the snow blower is lightened in weight, which also leads to the fact that the support frame can be made considerably weaker.

Gemäß einer bevorzugten Ausführungsform ist der Fräsrahmen im Querschnitt parallelogrammförmig ausgebildet, wobei eine erste, der Piste zugewandte Parallelogrammseite etwa pistenparallel und eine zweite, sich daran anschließende Parallelogrammseite eine Prallfläche bildend in Fahrtrichtung schräg nach oben ansteigend ausgebildet ist. Dabei ist es besonders günstig, daß in der der Piste zugewandten Parallelogrammseite des Fräsrahmens jeweils an den Kanten zwei Befestigungsnuten zur Aufnahme der Glätteinrichtung eingearbeitet sind. Auf diese Weise kann die Glätteinrichtung in zwei voneinander beabstandeten Nuten eingeschoben werden, wodurch die Glätteinrichtung an ihrem dem Fräsrahmen zugewandten Teil eine gewisse Steifigkeit erhält. Durch die Anbringung zweier Befestigungsnuten in der der Piste zugewandten Parallelogrammseite des Fräsrahmens kann sich die Glätteineinrichtung nahtlos an die Prallfläche des Fräsrahmens anschließen.According to a preferred embodiment, the milling frame has a parallelogram cross-section, a first parallelogram side facing the runway being approximately parallel to the runway and a second, subsequent parallelogram side forming a baffle surface rising obliquely upward in the direction of travel. It is particularly advantageous that in the parallelogram side of the milling frame facing the slope, two fastening grooves are incorporated at the edges for receiving the smoothing device. In this way, the smoothing device can be inserted into two spaced-apart grooves, as a result of which the smoothing device receives a certain rigidity at its part facing the milling frame. By installing two fastening grooves in the parallelogram side of the milling frame facing the slope, the smoothing device can connect seamlessly to the baffle surface of the milling frame.

Es ist vorteilhaft, wenn an der in Fahrtrichtung vorderen Kante einer pistenparallelen, der Piste abgewandten Parallelogrammseite des Fräsrahmens eine Befestigungsnut zur Aufnahme des Abdeckprofiles eingearbeitet ist. Das Abdeckprofil, welches sich über die Fräswelle hinüberreichend erstreckt, kann sich so zumindest teilweise auf der oberen Parallelogrammseite des Fräsrahmens abstützen. Dabei ist es vorteilhaft, wenn das Abdeckprofil aus nachgiebigem Kunststoff ausgebildet ist. Je nachdem welcher Schnee gefräst wird, kann das Abdeckprofil dann leicht nach oben ausweichen, wodurch eine Beschädigung der Schneefräse durch Eisbrocken oder dergleichen vermieden wird. Zum Auswechseln der Abdeckprofile ist es günstig, wenn symmetrisch zum Getriebe zwei, in den Abmessungen jeweils den Fräswellen angepasste Abdeckprofile in der Befestigungsnut angebracht sind.It is advantageous if a fastening groove for receiving the cover profile is incorporated on the front edge in the direction of travel of a parallelogram side of the milling frame that faces away from the slope. The cover profile, which extends over the milling shaft, can be supported at least partially on the upper parallelogram side of the milling frame. It is advantageous if the cover profile is made of resilient plastic. Depending on which snow is milled, the cover profile can then move slightly upwards, thereby preventing damage to the snow blower by chunks of ice or the like. To replace the cover profiles, it is advantageous if two cover profiles, each adapted to the milling shafts in terms of dimensions, are fitted in the fastening groove symmetrically to the gearbox.

Für das Auswechseln der Fräswellen ist es von Vorteil, daß die Seitenlager an den Enden des Fräsrahmens auswechselbar angeschraubt sind. Wenn dann die Fräswellen einerseits im Getriebe und andererseits in den Seitenlagern eingesteckt gehalten sind, kann einfach nach Abschrauben eines der Seitenlager die entsprechende Fräswelle aus dem Getriebe herausgezogen werden, ohne daß weitere Arbeiten zum Auswechseln der Fräswelle vorzunehmen wären.For exchanging the milling shafts, it is advantageous that the side bearings are screwed onto the ends of the milling frame so that they can be replaced. If the milling shafts are then inserted in the gearbox on the one hand and in the side bearings on the other hand, the corresponding milling shaft can simply be pulled out of the gearbox after unscrewing one of the side bearings without any further work for replacing the milling shaft.

Verschleißmindernd für den Fräsrahmen wirkt es sich aus, wenn auf die Prallfläche des Fräsrahmens ein Kunststoffbelag aufgespritzt ist.It reduces wear on the milling frame if a plastic covering is sprayed onto the impact surface of the milling frame.

Im folgenden wird an Hand einer Zeichnung ein Ausführungsbeispiel der Neuerung näher erläutert. Es zeigen:

  • Fig. 1 eine Draufsicht auf die Schneefräse, wobei ein Teil der Schneefräse weggebrochen wurde,
  • Fig. 2 eine Schnittansicht der neuerungsgemäßen Schneefräse, entlang der Linie 11-11 aus Fig. 1 und
  • Fig. 3 die neuerungsgemäße Schneefräse im zerlegten Zustand in Seitenansicht und Draufsicht,
An exemplary embodiment of the innovation is explained in more detail below with the aid of a drawing. Show it:
  • 1 is a plan view of the snow blower, with part of the snow blower broken away,
  • Fig. 2 is a sectional view of the snow blower according to the innovation, along the line 11-11 of Fig. 1 and
  • 3 the snow blower according to the invention in the disassembled state in a side view and a top view,

Wie am besten aus der Fig. 1 zu ersehen ist umfasst die Schneefräse 1 einen Tragrahmen 2 für den Heckanbau an ein nicht dargestelltes Pistenfahrzeug und einen an dem Tragrahmen 2 befestigten und sich über die gesamte Breite der Schneefräse erstreckenden Prallkörper 3.As can best be seen from FIG. 1, the snow blower 1 comprises a support frame 2 for rear attachment to a snow groomer (not shown) and an impact body 3 fastened to the support frame 2 and extending over the entire width of the snow blower.

Der Tragrahmen 2 ist gabelförmig ausgebildet und symmetrisch zur Mitte der Schneefräse 1 mit dem Prallkörper 3 verschraubt. Der Prallkörper 3 selbst ist als zentraler Fräsrahmen ausgebildet, an welchem modulartig die nachfolgenden Bauteile angebracht sind.The support frame 2 is fork-shaped and screwed symmetrically to the center of the snow blower 1 with the impact body 3. The impact body 3 itself is designed as a central milling frame, on which the following components are attached in a modular manner.

In der Mitte des Tragrahmens, bzw. des Prallkörpers 3 ist ein Getriebe 4 angeschraubt, welches zwei sich beidseitig von dem Getriebe 4 bis zu den seitlichen Enden 5 und 6 des Fräsrahmens 3 erstreckende Fräswellen 7 und 8 antreibt. Die äußeren Enden 9 und 10 der Fräswellen 7 und 8 werden in an den seitlichen Enden 5 und 6 des Fräsrahmens 3 befestigten Seitenlagern 11 und 12 gehalten.In the middle of the support frame or the impact body 3, a gear 4 is screwed, which drives two milling shafts 7 and 8 extending on both sides from the gear 4 to the lateral ends 5 and 6 of the milling frame 3. The outer ends 9 and 10 of the milling shafts 7 and 8 are held in side bearings 11 and 12 fastened to the lateral ends 5 and 6 of the milling frame 3.

Wie besser aus der Fig. 2 ersichtlich ist, besteht der Fräsrahmen 3 aus einem parallelogrammförmigen Hohlkörper, der beispielsweise durch Strangpressen aus Aluminium hergestellt werden kann. Eine untere Parallelogrammseite 13 des Fräsrahmens 3 ist der Piste zugewandt und etwa parallel dazu ausgerichtet. An die Parallelogrammseite 13 schließt sich in Fahrtrichtung gesehen nach vorne eine zweite Parallelogrammseite 14 an, welche schräg nach oben ansteigt.As can be seen more clearly from FIG. 2, the milling frame 3 consists of a parallelogram-shaped hollow body which can be produced, for example, from aluminum by extrusion. A lower parallelogram side 13 of the milling frame 3 faces the slope and is aligned approximately parallel to it. When viewed in the direction of travel, the parallelogram side 13 is followed by a second parallelogram side 14, which rises obliquely upwards.

Diese Parallelogrammseite ist als Prallfläche ausgebildet und mit einem verschleißmindernden Kunststoffbelag versehen, welcher bei dem hier gezeigten Ausführungsbeispiel auf die Parallelogrammseite 14 aufgespritzt ist.This parallelogram side is designed as an impact surface and is provided with a wear-reducing plastic covering which is sprayed onto the parallelogram side 14 in the exemplary embodiment shown here.

Im Bereich der vorderen Kante 15 und der hinteren Kante 16 der ersten Parallelogrammseite 13 sind Befestigungsnuten 17 und 18 eingelassen, welche sich über die gesamte Breite des Fräsrahmens 3 erstrecken.In the area of the front edge 15 and the rear edge 16 of the first parallelogram side 13, fastening grooves 17 and 18 are let in, which extend over the entire width of the milling frame 3.

In den Befestigungsnuten 17 und 18 ist eine Glätteinrichtung 19 befestigt, welche mit ihren Vorsprüngen 20 in die Befestigungsnuten 17 und 18 eingeschoben ist. Die Vorsprünge 20 werden dabei von den Befestigungsnuten 17 und 18 hintergriffen, so daß eine weitere Befestigung der Glätteinrichtung nicht notwendig ist. Die Glätteinrichtung 19 erstreckt sich über gesamte Breite der Fräse und besteht aus Kunststoff. Sie weist im vorderen Bereich einem im Querschnitt etwa dreiecksförmigen ausgesteiften Teil 21 auf an den sich heckwärts ein plattenförmiger nachgiebigerer Teil 22 anschließt. Auf der Unterseite der Glätteinrichtung sind in drei Querreihen relativ schmale, sich in Fahrtrichtung erstreckende Rippen 23 angebracht. Die Querreihen der Rippen 23 erstrecken sich über die gesamte Breite der Glätteinrichtung 19.A smoothing device 19 is fastened in the fastening grooves 17 and 18 and is inserted with its projections 20 into the fastening grooves 17 and 18. The projections 20 are engaged behind by the fastening grooves 17 and 18, so that a further fastening of the smoothing device is not necessary. The smoothing device 19 extends over the entire width of the milling cutter and is made of plastic. In the front area, it has a part 21 which is approximately triangular in shape and which is joined to the rear by a plate-shaped, more flexible part 22. On the underside of the smoothing device, relatively narrow ribs 23 extending in the direction of travel are attached in three transverse rows. The transverse rows of the ribs 23 extend over the entire width of the smoothing device 19.

Auf der der Parallelogrammseite 13 gegenüberliegenden, oberen Seite 24 des Fräsrahmens 3 ist im Bereich der vorderen Kante 25 ebenfalls eine Befestigungsnut 26 eingearbeitet, welche sich über die gesamte Breite des Fräsrahmens 3 erstreckt. In der Befestigungsnut 26 ist ein Abdeckprofil aus einem nachgiebigen Kunststoff befestigt, das sich in Verlängerung der Parallelogrammseite 24 in Fahrtrichtung gesehen nach vorne erstreckt und in einem pistenwärts gerichteten Bogen endet. Auch dieses Abdeckprofil kann ebenso wie die Glätteinrichtung in die Befestigungsnut 26 eingeschoben werden, welche einen Vorsprung 28 des Abdeckprofiles 27 hintergreift, so daß eine weitere Befestigung des Abdeckprofiles 27 nicht notwendig ist. Von den Abdeckprofilen 27 sind zwei nebeneinander vorgesehen, wobei sich jeweils eines von dem Getriebe aus bis zu den seitlichen Enden 5 bzw. 6 des Fräsrahmens 3 erstreckt.On the upper side 24 of the milling frame 3 opposite the parallelogram side 13, a fastening groove 26 is also incorporated in the region of the front edge 25, which extends over the entire width of the milling frame 3. In the fastening groove 26, a cover profile made of a resilient plastic is fastened, which extends in the extension of the parallelogram side 24 as seen in the direction of travel and ends in an arc directed towards the slope. This cover profile, like the smoothing device, can also be inserted into the fastening groove 26, which engages behind a projection 28 of the cover profile 27, so that a further fastening of the cover profile 27 is not necessary. Two of the cover profiles 27 are provided side by side, one each extending from the gear unit to the lateral ends 5 and 6 of the milling frame 3.

Die Fräswellen 7 und 8 sind einerseits in das Getriebe 4 und andererseits in die an den seitlichen Enden 5 und 6 des Fräsrahmens 3 angeschraubten Seitenlager 11 und 12 eingesteckt. Dies ist aus der Fig. 1 zu ersehen. In der Fig. 3 sind zum einen die Bauteile der Schneefräse 1 in der Draufsicht einzeln dargestellt; daneben sind sie auch noch in einer Seitenansicht zu erkennen. Besonders gut zu ersehen ist, daß die Schneefräse 1 aus nur sehr wenigen Teilen aufgebaut ist, die sehr leicht austauschbar sind. Sämtliche Verschleißteile sind an dem zentralen Fräsrahmen 3 angebracht, so daß je nach Verschleiß der Schneefräse entweder der gesamte Fräsrahmen 3 von dem Tragrahmen 2 abgeschraubt wird und durch einen neuen ersetzt wird, oder lediglich einzelne Verschleißteile ausgewechselt werden.The milling shafts 7 and 8 are inserted into the gear 4 on the one hand and into the side bearings 11 and 12 screwed to the lateral ends 5 and 6 of the milling frame 3 on the other hand. This can be seen from FIG. 1. 3, the components of the snow blower 1 are shown individually in plan view; they can also be seen in a side view. It can be seen particularly well that the snow blower 1 is constructed from only a very few parts which are very easy to replace. All wearing parts are attached to the central milling frame 3, so that depending on the wear of the snow blower, either the entire milling frame 3 is unscrewed from the supporting frame 2 and replaced by a new one, or only individual wearing parts are replaced.

Im folgenden wird die Wirkungsweise der Neuerung näher erläutert.The mode of operation of the innovation is explained in more detail below.

Die als Verschleißteil ausgelegte Glätteinrichtung 19 kann einfach durch Herausziehen aus den Befestigungsnuten 17 und 18 aus dem zentralen Fräsrahmen 3 entfernt werden und durch Einschieben einer neuen Glätteinrichtung 19 ersetzt werden. In gleicher Weise ist das Auswechseln der Abdeckprofile 27 möglich. Zum Auswechseln einer verschlissenen Fräswelle ist lediglich ein Seitenlager 11 bzw. 12 abzuschrauben, wonach dann die entsprechende Fräswelle 7 bzw. 8 aus dem Getriebe 4 herausgezogen werden kann. Der Einbau einer neuen Fräswelle wird in umgekehrter Reihenfolge vorgenommen.The smoothing device 19 designed as a wearing part can be removed from the central milling frame 3 simply by pulling out of the fastening grooves 17 and 18 and replaced by inserting a new smoothing device 19. In the same way, the replacement of the cover profiles 27 is possible. To replace a ver closed milling shaft, only one side bearing 11 or 12 has to be unscrewed, after which the corresponding milling shaft 7 or 8 can then be pulled out of the transmission 4. The installation of a new milling shaft is carried out in the reverse order.

Es ist auch möglich, an der oberen Seite 24 des Fräsrahmens 3, ähnlich wie bei der unteren Parallelogrammseite 13 zwei Befestigungsnuten für die Aufnahme des Abdeckprofiles vorzusehen. Das Abdeckprofil würde in diesem Falle zwei Vorsprünge aufweisen. Die seitlichen Enden 5 und 6 des Fräsrahmens 3 können durch Seitenbleche verschlossen werden, die dann gleichzeitig die seitliche Arretierung der beiden Abdeckprofile sowie der Glätteinrichtung übernehmen könnten.It is also possible to provide two fastening grooves for receiving the cover profile on the upper side 24 of the milling frame 3, similar to the lower parallelogram side 13. In this case, the cover profile would have two projections. The lateral ends 5 and 6 of the milling frame 3 can be closed by side plates, which could then simultaneously take over the lateral locking of the two cover profiles and the smoothing device.

Claims (10)

1. Snow-compacting roller (1) for attachment to the rear of a tracking vehicle, with a gearing (4) to drive at least one roller shaft (7, 8), a. support frame (2) for coupling the snow-compacting roller to a tracking vehicle, and a cross-sectionally trapezoidal baffle body (3) mounted on the support frame and extending across the breadth of the snow-compacting roller, which baffle body has on its bottom side (13) facing towards the track a smoothing device (19), characterised in that the baffle body consists of a hollow shape and forms a central roller frame (3) and that the gearing (4) is arranged in the centre of the roller frame (3), driving two roller shafts (7, 8) which are laterally coupled with the gearing (4) and mounted at their ends (9, 10) facing away from the gearing in lateral mounts (11, 12) disposed at the ends (5, 6) of the roller frame (3), that the roller frame (3) is provided with mounting slots (17, 18, 26) across the driving direction whereby in an upper slot (26), which faces towards the roller shafts (7, 8), at least one exchangeable cover shape (27), and in at least one lower slot (17, 18), which faces towards the track, an exchangeable, smoothing device (19) is mounted by way of slotting in.
2. Snow-compacting roller according to claim 1, characterised in that the roller frame (3) is constructed as a continuous casted or extruded aluminium shape.
3. Snow-compacting roller according to claim 1 or 2, characterised in that the roller frame (3) is cross-sectionally parallelogram-shaped whereby a first parallelogram side (13) facing towards the track is approximately track-parallel, and a second adjacent parallelogram side (14) forms a baffle surface rising transversely upwards in the driving direction.
4. Snow-compacting roller according to claim 3, characterised in that at the track-facing parallelogram side (13) of the roller frame (3) at the edges (15 and 16) two mounting slots (17 and 18) are incorporated to accommodate the smoothing device (19).
5. Snow-compacting roller according to at least one of the claims 1 to 4, characterised in that a mounting slot (26) is incorporated into a forward edge (25), seen in the driving direction, of a track-parallel parallelogram side (24) facing away from the track of the roller frame (3) to accommodate the cover shape (27).
6. Snow-compacting roller according to at least one of the claims 1 to 5, characterised in that the cover shape (27) is made of resilient plastics material.
7. Snow-compacting roller according to at least one of the claims 1 to 6, characterised in that symmetrically with the gearing (4), two cover shapes (27), both dimensionally matched to the roller shafts (7, 8), are engaged in the mounting slot (26).
8. Snow-compacting roller according to at least one of the claims 1 to 7, characterised in that the lateral mounts (11, 12) for the roller shafts (7, 8) are exchangeably screwed onto the ends (5, 6) of the roller frame (3).
9. Snow-compacting roller according to at least one of the claims 1 to 8, characterised in that the roller shafts (7, 8) are held by engagement on the one side in the gearing (4) and on the other side in the lateral mounts (11, 12).
10. Snow-compacting roller according to at least one of the claims 1 to 9, characterised in that a plastics-material coating is sprayed onto the baffle surface (14) of the roller frame (3).
EP86112076A 1985-10-02 1986-09-01 Rotary snow cutter Expired - Lifetime EP0217153B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86112076T ATE54349T1 (en) 1985-10-02 1986-09-01 SNOW BLOWER.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8528096U 1985-10-02
DE8528096U DE8528096U1 (en) 1985-10-02 1985-10-02 Snow blower

Publications (3)

Publication Number Publication Date
EP0217153A2 EP0217153A2 (en) 1987-04-08
EP0217153A3 EP0217153A3 (en) 1988-01-20
EP0217153B1 true EP0217153B1 (en) 1990-07-04

Family

ID=6785877

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86112076A Expired - Lifetime EP0217153B1 (en) 1985-10-02 1986-09-01 Rotary snow cutter

Country Status (7)

Country Link
US (1) US4718183A (en)
EP (1) EP0217153B1 (en)
JP (1) JPH0621442B2 (en)
AT (1) ATE54349T1 (en)
CA (1) CA1240193A (en)
DE (2) DE8528096U1 (en)
YU (1) YU166086A (en)

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CA2008235C (en) * 1990-01-22 1999-08-31 Michel Pelletier Variable geometry tiller
US5077919A (en) * 1991-05-13 1992-01-07 Logan Manufacturing Company Snow grooming comb with angularly positioned elongate teeth
DE9315880U1 (en) * 1993-10-18 1994-02-03 Karl Kässbohrer Fahrzeugwerke GmbH, 89077 Ulm Slope grooming device
IT1313729B1 (en) * 1999-09-15 2002-09-17 Leitner Spa MILLING GROUP FOR THE BEATING OF SNOWY SLOPES
US20060081381A1 (en) * 2004-09-07 2006-04-20 Kassbohrer All Terrain Vehicles, Inc. Material handling apparatus
DE102006057272B4 (en) 2006-11-23 2011-11-10 Kässbohrer Geländefahrzeug AG Piste grooming device for a motor vehicle, in particular a tracked vehicle
ITMI20070565A1 (en) * 2007-03-21 2008-09-22 Prinoth Spa MILL FOR THE PREPARATION OF THE SNOWY SKI SLOPE
ITMI20131925A1 (en) * 2013-11-20 2015-05-21 Snowgrolic S A R L SNOW MILL FOR THE PREPARATION OF THE SNOWY SKI SLOPE
CN105256297A (en) * 2014-07-17 2016-01-20 烟台盛业钢格板有限公司 High-corrosion-resistance phosphating solution and preparing method thereof
CN106884401B (en) * 2017-04-07 2018-07-03 广西玉林悍牛工程机器有限公司 Press sled snowplow scraper plate compaction apparatus

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Also Published As

Publication number Publication date
CA1240193A (en) 1988-08-09
ATE54349T1 (en) 1990-07-15
EP0217153A2 (en) 1987-04-08
DE3672432D1 (en) 1990-08-09
DE8528096U1 (en) 1985-11-14
US4718183A (en) 1988-01-12
JPS6282107A (en) 1987-04-15
EP0217153A3 (en) 1988-01-20
YU166086A (en) 1988-02-29
JPH0621442B2 (en) 1994-03-23

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