NO770265L - ROTOR FOR SNOW THROWER. - Google Patents
ROTOR FOR SNOW THROWER.Info
- Publication number
- NO770265L NO770265L NO770265A NO770265A NO770265L NO 770265 L NO770265 L NO 770265L NO 770265 A NO770265 A NO 770265A NO 770265 A NO770265 A NO 770265A NO 770265 L NO770265 L NO 770265L
- Authority
- NO
- Norway
- Prior art keywords
- snow
- rotor
- milling
- vanes
- throwing
- Prior art date
Links
- 238000003801 milling Methods 0.000 claims description 13
- 239000002245 particle Substances 0.000 description 3
- 241001609370 Puschkinia scilloides Species 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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
- E01H5/096—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 axes parallel or substantially parallel to the direction of clearing
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Centrifugal Separators (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Description
Snøslynge.Snow flurry.
Den foreliggende oppfinnelse vedrører en snøslynge med rotorskive hvortil det er festet kastevinger som danner en radialvifte og foran disse skrueformete fresevinger som danner en aksialvifte og som er innrettet til å skrues inn i en snømasse først. The present invention relates to a snow thrower with a rotor disc to which are attached throwing vanes which form a radial fan and in front of these helical milling vanes which form an axial fan and which are designed to be screwed into a mass of snow first.
I kjente snøslynger vil en stor del av den energi som til-føres rotoren gå med til slagarbeid når kastevingen forandrer snøpartiklenes statiske tilstand hurtig til en bevegelsestil-stand for frembringelse av nødvendig sentrifugalkraft for slyng-ingen. In known snow blowers, a large part of the energy supplied to the rotor will be used for impact work when the throwing vane quickly changes the static state of the snow particles into a state of motion to produce the necessary centrifugal force for the blower.
Formålet med den foreliggende oppfinnelse er å frembringe J en snøslynge hvor snøpartiklene flytter fra en snødrive langs jevnt krumme baner til snøslyngens åpning slik at energien for flytting av snøen virkelig medgår til dette. The purpose of the present invention is to produce J a snow blower where the snow particles move from a snow drift along evenly curved paths to the opening of the snow blower so that the energy for moving the snow really contributes to this.
Snøslyngen ifølge oppfinnelsen kjennetegnes ved at fresevingenes stigningøker mot radialviften slik at snømassens hastighet på vingene er akselererende, og at fresevingenes bakre ender slutter ved et åpent rom som er avgrenset av kastevingene. Derved akselereres snøpartiklenes hastighet i rotoren jevnt helt til kastevingene, hvorved et unødvendig slagarbeid uteblir og det i rotoren foreligger en laminær strømning langs de krumme baner. The snow thrower according to the invention is characterized by the pitch of the milling blades increasing towards the radial fan so that the speed of the snow mass on the blades is accelerating, and that the trailing ends of the milling blades end at an open space delimited by the throwing blades. Thereby, the speed of the snow particles in the rotor is accelerated evenly all the way to the throwing wings, whereby there is no unnecessary impact work and there is a laminar flow in the rotor along the curved paths.
Ved utskifting av rotoren i en kjent, fabrikkprodusert snø-slynge med en rotor ifølge oppfinnelsen, økte man den av produs-enten angitte lastekapasitet fra 2 m 3 /min til 15-20 m 3/min med By replacing the rotor in a known, factory-produced snow thrower with a rotor according to the invention, the load capacity specified by the manufacturer was increased from 2 m 3 /min to 15-20 m 3 /min with
samme motoreffekt. Forbedringen er således nærmere ti ganger. same engine power. The improvement is thus close to ten times.
Ifølge en fordelaktig utførelsesform av oppfinnelsen nærmer fresevingenes ytre kanter seg mens deres sidekanter fjerner According to an advantageous embodiment of the invention, the outer edges of the milling wings approach while their side edges move away
seg jevnt fra rotorens rotasjonsaksel mot vingenes frie spiss. Fra vingens spiss, som befinner seg nokså nær rotasjonsakselen, evenly from the rotor's axis of rotation towards the free tip of the wings. From the tip of the wing, which is located fairly close to the axis of rotation,
løper det således to skjærende kanter, den ene mot midtpunktet, den andre mot omkretsen. Snøslyngen er særlig velegnet for tett- thus two intersecting edges run, one towards the center, the other towards the circumference. The snow flurry is particularly suitable for dense
pakket snø, hvor slynging med kjente anordninger er langsom og krever stoæ effekter. packed snow, where slinging with known devices is slow and requires stoæ effects.
Ifølge en annen utførelsesform er viftens kastevinger en fortsettelse av fresevingene. Derved støtter vingene hverandre, og det er ikke nødvendig med noen støttering. According to another embodiment, the fan's throwing vanes are a continuation of the milling vanes. Thereby, the wings support each other, and no support ring is necessary.
Ifølge en tredje utførelsesform er det i rotorplaten utformet én eller flere luftinntaksåpninger. Gjennom disse luftinntaksåpninger oppnås det en luftstrøm som holder rommet mellom stamme og rotoren fri for snø. According to a third embodiment, one or more air intake openings are formed in the rotor plate. Through these air intake openings, an air flow is achieved that keeps the space between the stem and the rotor free of snow.
Oppfinnelsen vil bli nærmere forklart i det etterfølgende under henvisning til de medfølgende tegninger, hvori: The invention will be explained in more detail below with reference to the accompanying drawings, in which:
Fig. 1 viser et sideriss av rotoren.Fig. 1 shows a side view of the rotor.
Fig. 2 viser et frontoppriss av rotoren.Fig. 2 shows a front view of the rotor.
Fig. 3 viser et frontoppriss av rotorens kastevinger.Fig. 3 shows a front view of the rotor's throwing wings.
Fig. 4 viser rotoren bakfra.Fig. 4 shows the rotor from behind.
En fresevinge 1 i fig. 1 løsgjør snø med dens spissdel når rotoren roterer, og snøen flytter seg langs vingens innerside, hvis spesielle form gir snøen en akselerasjon slik at snøen når den forlater fresevingen 1 har en aksial og en radial hastighet. Deretter kommer snøen til kastevinger 2 i fig. 1 og 3. Sin ende-lige hastighet får snøen fra kastevingene og kastes som i kjente anordninger ut gjennom en åpning i huset som omgir rotoren. Idet den ytre diameter ved fresevingene er mindre enn den ytre diameter kastevingene danner, noe som konstruksjonsmessig er enklere å virkeliggjøre, anvendes det hjelpevinger 3, som er festet til en støttering 7, for styring av snøen til kastevingene. A milling blade 1 in fig. 1 loosens snow with its tip part when the rotor rotates, and the snow moves along the inner side of the blade, whose special shape gives the snow an acceleration so that when the snow leaves the milling blade 1 it has an axial and a radial speed. The snow then reaches the throwing wings 2 in fig. 1 and 3. The snow gets its final speed from the throwing wings and is thrown out, as in known devices, through an opening in the housing that surrounds the rotor. Since the outer diameter of the milling wings is smaller than the outer diameter of the throwing wings, which is easier to implement in terms of construction, auxiliary wings 3, which are attached to a support ring 7, are used to control the snow to the throwing wings.
Hjelpevinger 4 bak rotoren holder rommet mellom huset og rotoren fritt for snø ved å frembringe en luftstrøm gjennom åpninger 8 som befinner seg i en rotorplate 6 nær navet. Auxiliary wings 4 behind the rotor keep the space between the housing and the rotor free of snow by producing an air flow through openings 8 located in a rotor plate 6 near the hub.
For en fagmann på området er det klart at de forskjellige utførelsesformer av oppfinnelsen kan variere innenfor rammen av de etterfølgende krav. For a person skilled in the field, it is clear that the various embodiments of the invention may vary within the scope of the subsequent claims.
Selv om det er omtalt en snøslynge, er det klart at det også kan slynges andre, tilsvarende masser. Although a snow thrower is mentioned, it is clear that other, similar masses can also be thrown.
Claims (4)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI760212A FI760212A (en) | 1976-01-29 | 1976-01-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
NO770265L true NO770265L (en) | 1977-08-01 |
Family
ID=8509719
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO770265A NO770265L (en) | 1976-01-29 | 1977-01-27 | ROTOR FOR SNOW THROWER. |
Country Status (5)
Country | Link |
---|---|
CA (1) | CA1032970A (en) |
DE (1) | DE2703298A1 (en) |
FI (1) | FI760212A (en) |
NO (1) | NO770265L (en) |
SE (1) | SE7700849L (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5101585A (en) * | 1991-03-22 | 1992-04-07 | Met-Line Inc. | Digging implement |
ITMO20120237A1 (en) * | 2012-09-28 | 2014-03-29 | Inox Mark Di Ferraroni P I Marco | SPALANEOUS HEAD FOR BRUSH CUTTER. |
-
1976
- 1976-01-29 FI FI760212A patent/FI760212A/fi not_active Application Discontinuation
-
1977
- 1977-01-27 DE DE19772703298 patent/DE2703298A1/en active Pending
- 1977-01-27 SE SE7700849A patent/SE7700849L/en unknown
- 1977-01-27 NO NO770265A patent/NO770265L/en unknown
- 1977-01-28 CA CA270,611A patent/CA1032970A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
CA1032970A (en) | 1978-06-13 |
DE2703298A1 (en) | 1977-08-04 |
FI760212A (en) | 1977-07-30 |
SE7700849L (en) | 1977-07-30 |
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