EP0267388B1 - Schneeschleuder mit Zuführeinrichtungen - Google Patents

Schneeschleuder mit Zuführeinrichtungen Download PDF

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Publication number
EP0267388B1
EP0267388B1 EP87113448A EP87113448A EP0267388B1 EP 0267388 B1 EP0267388 B1 EP 0267388B1 EP 87113448 A EP87113448 A EP 87113448A EP 87113448 A EP87113448 A EP 87113448A EP 0267388 B1 EP0267388 B1 EP 0267388B1
Authority
EP
European Patent Office
Prior art keywords
throwing blades
feeding device
rotary snow
wheel
snow plough
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.)
Expired - Lifetime
Application number
EP87113448A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0267388A3 (en
EP0267388A2 (de
Inventor
Franz Gruber
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ing Alfred Schmidt GmbH
Original Assignee
Ing Alfred Schmidt GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ing Alfred Schmidt GmbH filed Critical Ing Alfred Schmidt GmbH
Priority to AT87113448T priority Critical patent/ATE60386T1/de
Publication of EP0267388A2 publication Critical patent/EP0267388A2/de
Publication of EP0267388A3 publication Critical patent/EP0267388A3/de
Application granted granted Critical
Publication of EP0267388B1 publication Critical patent/EP0267388B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • E01H5/00—Removing snow or ice from roads or like surfaces; Grading or roughening snow or ice
    • E01H5/04—Apparatus propelled by animal or engine power; Apparatus propelled by hand with driven dislodging or conveying levelling elements, conveying pneumatically for the dislodged material
    • E01H5/08—Apparatus propelled by animal or engine power; Apparatus propelled by hand with driven dislodging or conveying levelling elements, conveying pneumatically for the dislodged material dislodging essentially by driven elements
    • E01H5/09—Apparatus propelled by animal or engine power; Apparatus propelled by hand with driven dislodging or conveying levelling elements, conveying pneumatically for the dislodged material dislodging essentially by driven elements the elements being rotary or moving along a closed circular path, e.g. rotary cutter, digging wheels
    • E01H5/094—Apparatus propelled by animal or engine power; Apparatus propelled by hand with driven dislodging or conveying levelling elements, conveying pneumatically for the dislodged material dislodging essentially by driven elements the elements being rotary or moving along a closed circular path, e.g. rotary cutter, digging wheels about vertical or substantially vertical axises

Definitions

  • the invention relates to a snow blower, in particular for high clearing capacity, with two feeding devices arranged on both sides of the blower wheel and in the clearing direction in front of the blower wheel housing, which are driven in opposite directions around vertical axes and which are in each case completely or partially covered on their outer sides by a deflector plate, which closely fits the feeding device encloses.
  • a snow blower with such feed devices is known from DE-B-27 21 411.
  • the feed devices consist of feeder screws which rotate about vertical axes in such a way that the snow that is captured laterally is thrown in front of the centrifugal wheel.
  • Such feeder screws require a power requirement which corresponds to the energy for the lateral displacement as well as for lifting the detected snow corresponding to the shape of the screw.
  • the snow is often undesirably attached to the flanks of the feeder screw, reducing its efficiency. This also applies to very light, powdery snow, which is partially swirled by the feeder screws and is therefore not fed directly to the snow blower.
  • feed devices for a snow blower are drums rotating about vertical axes, on the surface of which short milling blades protrude (CH-A-309 121).
  • CH-A-309 121 Also known as feed devices for a snow blower are drums rotating about vertical axes, on the surface of which short milling blades protrude.
  • the present invention is based on the object of designing feed devices in a generic snow blower in an energy-saving manner but with a high swallowing capacity for high clearing speeds, in particular for use on airfields.
  • the feed device consists essentially of a cage-like rotor with throwing blades arranged along circumferential lines along the circumference, the throwing blades also being driven in rotation around vertical axes in a direction opposite to the respective feed device.
  • the snow gripped by the throwing blades is no longer raised but is only thrown in front of the centrifugal wheel, as a result of which the energy expenditure for snow transport is reduced.
  • the fact that the throwing blades rotate, but also because of their vertical surface, reliably prevents snow from sticking to the throwing blades.
  • the result is a snow blower whose swallowing capacity can be used to a very high degree as a result of the efficient support from the two feeding devices.
  • the effect of the feed devices is further supported by the centrifuge stem, which is extended towards the front of the feed devices and is constructed on both sides in the manner of a feed plow, the feed devices being integrated in the coulter area, but partially projecting beyond them, seen in plan view approximately over half the circumference .
  • the feed devices are tightly encased by baffle plates which prevent snow from escaping from the side or rear.
  • a preferred embodiment provides that the throwing blades make only half a revolution during one revolution of the feed device, the throwing blades being oriented approximately parallel to the clearing direction in their foremost rotational position. In this way it is possible on the one hand to optimally insert the throwing blades into the snow accumulated within the housing stem; on the other hand, there is an optimal discharge angle in the direction of the vertical center axis of the snow blower, the throwing blades in the discharge position taking up an angle of approximately 45 ° to the clearing direction.
  • the inherent rotation of the throwing blades has the effect that with a quarter turn of the feed device, the rotational position of the throwing blades, compared to fixed, radially oriented throwing blades, remains by half, ie 45 degrees.
  • the throwing blades do not take up the entire width available within the envelope surface of the feed device.
  • the invention provides that the width of the throwing blades, which determines the diameter of their enveloping surface, is between 1/3 and% of the radius of the enveloping surface of the feeding device. In a preferred embodiment, the width is closer to Y3.
  • each feed device has four throwing blades with a mutual spacing corresponding to 45 degrees. This number of four throwing blades is sufficient for a speed of the feed device in the order of more than 500 revolutions per minute.
  • the throwing blades are preferably driven by means of an output from the associated feed device. While the drive for the feed device expediently acts on the upper end of a central drive shaft, the output can act on the rotating shafts of the throwing blades at the upper or lower end of a rotating shaft. In the case of a chain or belt drive, where a chain or belt is provided for driving one or two throwing blades, the preferred location for the arrangement of the output is the upper end of the rotary shafts, which is remote from the snow pad. If, on the other hand, the output is designed as a planetary gear, this is preferably at the lower end of the rotary shaft len arranged. Such a planetary gear is preferably arranged in a gear box rotating with the feed device.
  • Fig. 1 shows the front view of a blower wheel (2) of a snow blower arranged in the housing (1) for the front-side attachment to a carrier vehicle (not shown).
  • a housing apron (3) forming the front closure of the housing (1) is pulled forward to the side except for narrow vertical end faces (4) in the manner of feed snow plows on both sides with an inward facing share surface (5).
  • feed devices (7) are provided on both sides of the centrifugal wheel (2), which project with part of their circumference into the share surface (5) , where they are closely wrapped outwards or backwards by deflector plates (8) (see FIG. 2).
  • the front edge (9) of the deflector plates (8) runs from the bottom upwards increasingly towards the outside, forming a bend (10) approximately at a medium height, which is the intersection edge (11) between the coulter surface (5) and the top (12) of the side Housing stem marked.
  • a bottom plate (13) limits the front of the housing at the bottom; Throwing blades (14) which can be rotated about vertical shafts end close above the base plate (13), four such throwing blades being arranged distributed over the circumference of a feed device (7).
  • the feed device (7) has a central drive shaft (16). Both feed devices (7) are driven by their own hydraulic motor (17) and a gear (18), not shown in detail.
  • the rotary shafts (20) (FIG.
  • Fig. 2 shows that the front housing opens towards the front in relation to the clearing direction F in the manner of lateral snow plows, the two sides of the housing stem forming a coulter surface (5) inwards.
  • the two feed devices (7) rotate in opposite directions, the left one according to. Arrow Z1 counterclockwise and the right acc. Arrow Z2 clockwise.
  • the throwing blades (14) only make half a revolution, the throwing blades (14) of the left-hand feeding device turning clockwise in accordance with.
  • Arrows W1 that of the right-hand feeder in the counterclockwise direction according to turn the arrows W2.
  • Fig. 3 shows a schematic plan view of pulleys (22) connected to the axes of rotation of the throwing blades in a manner fixed against relative rotation and a central pulley (23).
  • the feed device rotates according to Arrow Z2 results from the two belts (24, 25) a rotation of the outer pulleys (22) in a counterclockwise direction acc. the arrows W2 of the feed device (7) provided on the right in FIG. 2.
  • Each of the two belts (24, 25) drives two successive outer pulleys (22).
  • Four belts could equally well be provided, one for each throwing blade. Instead of belts, revolving chains can be provided on sprockets.
  • FIG. 4 shows an alternative drive system in the manner of a planetary gear, as in FIG. 3 in a top view of the right feed device, in accordance with its direction of rotation Z2.
  • outer planet gears (26) are rotatably connected to the axis of rotation (20) of the throwing blades (14).
  • the drive transmission takes place starting from a central sun gear (27) via intermediate gears (28) which mesh on the one hand with the fixed sun gear (27) and on the other hand with the planet gears (26).
  • the direction of rotation of the intermediate wheels (28) results from the rotation of the throwing blades in the counterclockwise direction provided for the right feed device with the direction of rotation Z2.
  • Arrow W2 shows an alternative drive system in the manner of a planetary gear, as in FIG. 3 in a top view of the right feed device, in accordance with its direction of rotation Z2.
  • outer planet gears (26) are rotatably connected to the axis of rotation (20) of the throwing blades (14).
  • the drive transmission takes place starting from a central sun gear
  • Fig. 5 shows an enlarged elevation of a feed device (7), the throwing blades (14) of which are driven by a planetary gear arranged on the bottom.
  • a machine-fixed drive shaft (29) with a drive pinion drives a gearwheel (30) connected to the central drive shaft (16) for the feed device (7) in a rotationally fixed manner.
  • the drive shaft (16) is non-rotatably connected to a central housing (31), which in turn is non-rotatably connected to the cover (19) of the feed device (7).
  • the throwing blades (14) are by means of their rotating shafts (20) at the top in the cover (19) and at the bottom in a rotating gear box (32) for the planetary gear.
  • a planet gear (26) is connected in a rotationally fixed manner to the lower end of each rotary shaft (20), the rotation of which is controlled by means of intermediate gears (28), which on the other hand mesh with the central sun gear (27). While the feed device (7) rotates once about its axis, the planet gears (26) make one revolution.
  • the sun gear 27 is seated at the lower end of a fixed central shaft (33), at the lower end of which the gearbox (32) via an axial bearing (34) and at its upper end a central tube (38) fixed with a cover (19) and gearbox (32) ) is supported via a radial bearing (35).
  • the gear box (32) is supported by a ball bearing (36) on a central disc (37) which is attached to the underside of the sun gear (27).

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
  • Disintegrating Or Milling (AREA)
  • Catching Or Destruction (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Toys (AREA)
  • Soil Working Implements (AREA)
  • Screw Conveyors (AREA)
EP87113448A 1986-11-10 1987-09-15 Schneeschleuder mit Zuführeinrichtungen Expired - Lifetime EP0267388B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87113448T ATE60386T1 (de) 1986-11-10 1987-09-15 Schneeschleuder mit zufuehreinrichtungen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3638283 1986-11-10
DE19863638283 DE3638283A1 (de) 1986-11-10 1986-11-10 Schneeschleuder mit zufuehreinrichtungen

Publications (3)

Publication Number Publication Date
EP0267388A2 EP0267388A2 (de) 1988-05-18
EP0267388A3 EP0267388A3 (en) 1988-09-21
EP0267388B1 true EP0267388B1 (de) 1991-01-23

Family

ID=6313575

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87113448A Expired - Lifetime EP0267388B1 (de) 1986-11-10 1987-09-15 Schneeschleuder mit Zuführeinrichtungen

Country Status (5)

Country Link
US (1) US4829684A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
EP (1) EP0267388B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
AT (1) ATE60386T1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (2) DE3638283A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
NO (1) NO165080C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5542467A (en) * 1993-07-06 1996-08-06 Societe E'etudes Et De Constructions Aero-Navales Safety annular heat exchanger for incompatible fluids
CA2414526C (en) 2001-12-14 2011-02-22 Loram Maintenance Of Way, Inc. Snow removal apparatus
US9601015B2 (en) 2005-02-25 2017-03-21 Concaten, Inc. Maintenance decision support system and method for vehicular and roadside applications
US7355509B2 (en) 2005-02-25 2008-04-08 Iwapi Inc. Smart modem device for vehicular and roadside applications
US9864957B2 (en) 2007-06-29 2018-01-09 Concaten, Inc. Information delivery and maintenance system for dynamically generated and updated data pertaining to road maintenance vehicles and other related information
US8275522B1 (en) 2007-06-29 2012-09-25 Concaten, Inc. Information delivery and maintenance system for dynamically generated and updated data pertaining to road maintenance vehicles and other related information
US8231270B2 (en) * 2008-01-03 2012-07-31 Concaten, Inc. Integrated rail efficiency and safety support system
US8902081B2 (en) 2010-06-02 2014-12-02 Concaten, Inc. Distributed maintenance decision and support system and method
US9200419B2 (en) 2013-02-27 2015-12-01 Wausau Equipment Company, Inc. Runway snowblower

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2736111A (en) * 1956-02-28 Rotary snow plow
US1393935A (en) * 1919-09-08 1921-10-18 Ole T Bekkerus Rotary snowplow
US1647723A (en) * 1922-12-21 1927-11-01 Casali Joseph Folding stand
US1545235A (en) * 1923-04-21 1925-07-07 Robert E Cole Snowplow
US1977871A (en) * 1932-09-24 1934-10-23 Edward L Bass Snowplow
US2555948A (en) * 1947-09-13 1951-06-05 Franz F Wallack Rotary drum snowplow
CH309121A (de) * 1952-12-22 1955-08-31 Giuliani Cleto Schneeschleudermaschine.
DE2721411C2 (de) * 1977-05-12 1979-04-26 Ing. Alfred Schmidt Gmbh, 7822 St Blasien Schneeschleuder, insbesondere für den Anbau an Eisenbahnfahrzeuge
NO146961C (no) * 1980-05-14 1983-01-05 Oddvar Nystad Anordning ved snefreser.
DE3067432D1 (en) * 1980-07-18 1984-05-17 Schmidt Alfred Ing Gmbh Snow removing device for attachment to the front of a lorry
AT385300B (de) * 1984-05-28 1988-03-10 Kahlbacher Anton Schneeraeumvorrichtung
DE3424236C1 (de) * 1984-06-03 1985-09-19 Ing. Alfred Schmidt Gmbh, 7822 St Blasien Schneeschleuder

Also Published As

Publication number Publication date
EP0267388A3 (en) 1988-09-21
NO874661D0 (no) 1987-11-09
US4829684A (en) 1989-05-16
NO165080B (no) 1990-09-10
DE3638283C2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1991-08-14
EP0267388A2 (de) 1988-05-18
DE3638283A1 (de) 1988-05-19
DE3767660D1 (de) 1991-02-28
ATE60386T1 (de) 1991-02-15
NO874661L (no) 1988-05-11
NO165080C (no) 1990-12-19

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