EP1775386A1 - Winterdienststreuvorrichtung - Google Patents

Winterdienststreuvorrichtung Download PDF

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Publication number
EP1775386A1
EP1775386A1 EP05022391A EP05022391A EP1775386A1 EP 1775386 A1 EP1775386 A1 EP 1775386A1 EP 05022391 A EP05022391 A EP 05022391A EP 05022391 A EP05022391 A EP 05022391A EP 1775386 A1 EP1775386 A1 EP 1775386A1
Authority
EP
European Patent Office
Prior art keywords
sliding surface
rotation
axis
mouthpiece
spreading
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.)
Withdrawn
Application number
EP05022391A
Other languages
German (de)
English (en)
French (fr)
Inventor
Richard-Peter Seidl
Reinhold Otto Dankwart
Anton Welte
Karl-Rudolf Schmidt
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.)
Kuepper Weisser GmbH
Original Assignee
Kuepper Weisser 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 Kuepper Weisser GmbH filed Critical Kuepper Weisser GmbH
Priority to EP05022391A priority Critical patent/EP1775386A1/de
Priority to NO20064537A priority patent/NO345266B1/no
Priority to JP2006280464A priority patent/JP4827681B2/ja
Publication of EP1775386A1 publication Critical patent/EP1775386A1/de
Withdrawn legal-status Critical Current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
    • E01H10/00—Improving gripping of ice-bound or other slippery traffic surfaces, e.g. using gritting or thawing materials ; Roadside storage of gritting or solid thawing materials; Permanently installed devices for applying gritting or thawing materials; Mobile apparatus specially adapted for treating wintry roads by applying liquid, semi-liquid or granular materials
    • E01H10/007—Mobile apparatus specially adapted for preparing or applying liquid or semi-liquid thawing material or spreading granular material on wintry roads

Definitions

  • the present invention relates to a winter service spreading device, such as those used in winter service spreading vehicles for scattering spreading material, in particular road salt and brine moistened with salt.
  • Such scattering devices comprise a spreading plate, which is rotatable about a generally vertically oriented axis of rotation, and a sliding surface, which can be formed as a downpipe but also as a slide and usually over which the road salt is fed to the spreading plate from a road salt reservoir. Due to the rotation of the spreading plate, the road salt is thrown off in a substantially horizontal direction from the spreading plate and distributed in this way on the road surface to be sprinkled.
  • the road salt is usually moistened when it is spread. It is assumed that with moistened salt the tau effect of the salt starts faster and the flying properties of the road salt are positively influenced. However, a moistening of the road salt can lead long before spreading to clumping the road salt still in the reservoir, whereby the spreading would be much more difficult. Humidification therefore takes place essentially only at the moment of the scattering process.
  • the road salt and the sols used to moisten the road salt are carried in separate containers on a winter service vehicle and mixed together only at the time of actual spreading by the two components are supplied to the rotating spreading plate targeted in a narrow limited area separately.
  • the brine supply takes place with an overflow container at a central point of the spreading plate, while the road salt is directed against a baffle plate from which it strikes the spreading plate with a radial component.
  • the mixing of salt and brine takes place on the spreading plate.
  • Object of the present invention is therefore to provide a winter service scattering device in which the spread pattern does not change significantly even when cornering.
  • the provided at the lower end of the sliding chute for deflecting the scattering material is designed as a specially designed mouthpiece.
  • This mouthpiece has an inner surface onto which the scattering material sliding over the sliding surface impinges at a location spaced at least 200 mm from the outlet end of the mouthpiece, preferably at least 230 mm.
  • the inner surface of the mouthpiece has a concavely curved cross section and is inclined at a relatively shallow angle, at least at the outlet end of the mouthpiece, with an angle of inclination of at least 20 ° relative to the axis of rotation of the spreading plate.
  • This inclination angle should not exceed 60 °, so that the scattering material is not slowed down too much, and is preferably between 30 and 45 °, more preferably between 35 and 40 ° relative to the axis of rotation of the spreading plate. From the outlet end of the mouthpiece, the scattering material then falls on the spreading plate.
  • this effect is due to the fact that the scattering material is forced radially outward within the relatively steep downpipe when cornering due to the centrifugal force effect.
  • the spreading material strikes the spreading plate or the chute upstream of the spreading plate at a different location than when driving straight ahead.
  • the spreading material slips down the sliding surface of the downpipe as a relatively wide-band spreader strip, so that it is oriented substantially straightforward when driving straight ahead to the axis of rotation of the spreading plate, whereas it is now when the spreader strip is urged radially outward against the inner wall of the downpipe when cornering is aligned radially to the axis of rotation of the spreading plate.
  • the spreading material falling on the spreading plate is therefore detected by the throwing blades at substantially the same time, which leads to the scattering angle reduction of the scattered spreading material mentioned in the introduction.
  • the chute is designed as a relatively flat expiring mouthpiece with concave inner surface which extends from the point of impact of the grit to the outlet end of the mouthpiece over at least 200 mm, the grit slips back into a central position due to gravity.
  • the spreading material is always supplied to the spreading plate in the same way, that is, even when cornering.
  • the relatively large distance between the impact of falling of the sliding surface on the inner surface of the mouthpiece scattering material and the outlet end of the mouthpiece is essential to achieve the desired bundling, and is the larger, the weaker the concavity of the mouthpiece is formed and the flatter the mouthpiece is inclined.
  • the bundling and exact spreading material supply to the spreading plate can be further optimized if, at least over a certain distance, the cross section of the mouthpiece tapers in the direction of the outlet end of the mouthpiece rejuvenated. But even with constant cross-sectional shape can be achieved good results.
  • the inner surface of the mouthpiece extends arcuately in a direction parallel to the Streustoffloiscardi cross section of the mouthpiece, that is in a cross section which coincides with the axis of rotation or parallel thereto.
  • the outlet end of the mouthpiece falling scattering then applies, for example, to a centrally provided on the turntable cone surface, as is well known.
  • the outlet end of the mouthpiece is preferably oriented such that it points away from a central region about the axis of rotation of the spreading plate.
  • the scattering material is thus fed to the scattering plate in the discharge direction.
  • the outlet end of the mouthpiece is preferably directed radially outward relative to the axis of rotation.
  • the inner surface is inclined at the outlet end of the mouthpiece at a vertically arranged axis of rotation to the horizontal more than the conical surface of the spreading plate.
  • the rotary drive for the turntable is preferably realized by means of a motor offset from the axis of rotation and coupled to the axis of rotation via a gear.
  • a scattering brine mixture at the upper end of the sliding surface formed by the downpipe or the chute in addition to a Streustoffzu slaughter further provided a liquid supply such that with her in vertically aligned Rotary axis of the spreading plate, a liquid film on the inclined sliding surface can be generated.
  • the brine supply is carried out differently than in the annular nozzle, preferably directly to the lower wall of the inclined downpipe or the inclined chute, so that the liquid film can form on the sliding surface.
  • On an annular chamber around the downpipe around can then be dispensed with, so that exposure to the brine supply in cornering can be excluded.
  • the supply of the road salt to the sliding surface is preferably carried out at a point at which the brine film has already formed.
  • the liquid feed line and the scattering material feed device are arranged in such a way that a scattering-off stream fed by the scattering-material feed device, due to gravity, strikes the liquid film produced on the sliding surface. The scattering material thus falls on the film, is carried away by this and moistened it.
  • the angle of inclination of the sliding surface to the axis of rotation of the scattering plate may be between 5 ° and 40 ° and is preferably between 10 ° and 30 °, more preferably about 20 °, to a mixing of the scattering substance with the brine with simultaneous slippage of the scattering material on the sliding surface to reach.
  • An inclination of about 20 ° seems to be a suitable angle of inclination for most scattering materials.
  • the length of the sliding surface can therefore be between 300 mm and 1500 mm. It should preferably be over 500 mm.
  • the liquid feed line ends directly at the sliding surface in order to allow as laminar introduction of the brine as possible without much spraying.
  • the liquid line is directed obliquely with its feed end to the sliding surface, so that the escaping from the feed end brine is deflected only slightly when it hits the sliding surface.
  • the angle of inclination between the sliding surface of the downpipe or the chute and the supply end of the liquid supply line is preferably a maximum of 40 °. Because the sliding surface is inclined to the axis of rotation, as mentioned, preferably between 5 ° and 40 °, in particular between 10 ° and 30 °.
  • the feed is preferably at an angle to the sliding surface of 45 ° or less, e.g. 20 °.
  • the feed end of the liquid feed line may have a discharge cross-section which is oriented at least partially obliquely relative to the feed direction.
  • the obliquely oriented outlet cross-section can be achieved by chamfering the feed end at a corresponding angle, for example, the aforementioned 20 °, wherein the chamfer should not extend over the entire diameter of the liquid supply, as a sufficient passage for the brine supply between the supply line and the sliding surface must remain.
  • This passage cross-section can be between 5 and 30 mm, preferably between 15 and 20 mm.
  • the scattering material supply device with which the spreading material preferably, as mentioned, strikes the brine film at a location below the liquid supply line, preferably lies opposite the sliding surface. Any centrifugal forces then act in the same way on the liquid film as on the scattering substance flowing out of the scattering material feed device, so that the scattering material in any case strikes the liquid film.
  • the Streustoffzu melt falls due to gravity on the sliding surface.
  • Such a feed arc focused the scattering fluid flow toward the liquid film on the sliding surface.
  • the feed sheet preferably extends in a plane parallel to or with the axis of rotation of the scattering plate and further preferably has a tapering in the direction of the sliding surface cross-section.
  • the feed sheet may terminate immediately below a spreading means conveying device, so that without further facilities, except, for example, a - assigned to the Streustoff make worn - damper for Streustoffmengenregultechnik, the scattering material falls directly from the Streustoff occasion worn in the feed.
  • the scattering material entry end of the feed sheet is oriented so steeply or vertically that scattered material conveyed by the scattering material conveyor falls vertically into the feed sheet due to gravity.
  • the mouthpiece at the lower end of the sliding surface is inclined in a direction opposite to the sliding surface direction. Through this reversal of direction, the scattering material and brine are intensively mixed again before they collectively reach the spreading plate.
  • Figure 1 shows a Winterdienststreuvorraum invention for spreading a road salt-brine mixture.
  • the device may be an integral part of a winter service vehicle or form part of a corresponding winter service litter attachment for truck beds.
  • scattering substance S from a scattered foam reservoir, not shown by means of a suitable conveyor, such as a conveyor belt or a screw conveyor, through a feed channel 1 to the upper end of a downcomer assembly 2, 3, 4 fed.
  • the scattering substance exits and falls onto a scattering distributor in the form of a rotating about a rotation axis 5 scattering plate 6, of which the scattering material S is dropped by centrifugal force approximately in the horizontal direction.
  • the middle drop tube 3 of the downpipe assembly 2, 3, 4 may be telescopically designed to adapt the device to different gritting vehicles can.
  • the length of this drop tube 3 should be between 300 mm and 1500 mm, in order to provide a sufficiently long sliding surface for the scattering substance S and to be mixed with the scattering material S liquid F or brine, as will be explained below.
  • the inclination of the middle drop tube 3 may be greater or less than shown in FIG.
  • An angle of inclination relative to the axis of rotation 5 of the scattering plate 6 should be between 5 ° and 40 °, preferably between 10 ° and 30 °, particularly preferably at 20 °.
  • the angle of inclination influences the residence time of the scattering substance S on the sliding surface 7 of the drop tube 3 and thus the time available for the mixing of the scattering substance S with the brine F.
  • the feed of the brine F takes place at an upper end of the downpipe 3 directly onto the sliding surface 7 in such a way that a liquid film is formed on the sliding surface 7 so that the brine F laminarly flows down the sliding surface 7.
  • Serves a tubular fluid supply line 8 the supply end 9 terminates directly at the sliding surface.
  • the feed end 9 of the liquid line 8 is directed obliquely on the sliding surface 7. In the illustrated embodiment, this feed direction is approximately parallel to the axis of rotation 5 of the spreading plate. 6
  • the inlet end 9 of the fluid line 8 is partially bevelled on the side facing the sliding surface 7. This is where the Brine with the sliding surface 7 already in contact at a time in which it is still performed in the liquid supply, whereby the formation of a laminar flow is promoted.
  • the remaining Drucheriesquerrough for the brine F between the sliding surface 7 and the supply line 8 is then about 15 - 20 mm, preferably at least between 5 and 30 mm.
  • the delivery rates of the road salt S and the brine F are automatically determined and set and depend on the driving speed of the scattering vehicle, the spread width set by the spreading plate speed and the desired spreading density.
  • the liquid supply line 8 is accordingly connected via a pump P to a brine reservoir R, out of which the brine F is pumped into the downpipe 3.
  • the downcomer arrangement 2, 3, 4 has in addition to the downpipe 3 at the upper end of the downpipe 3 a downcomer 2 and at the lower end of the downer 3, a mouthpiece 4, of which the downcomer sheet 2 may optionally be omitted, but in combination with the downpipe 3 (or slide) and the mouthpiece 4 promotes a uniform mixing of the scattering substance S with the brine F.
  • the basic function of the downcomer sheet 2 is to guide the scattering material S at a defined location on the sliding surface 7, which is below the feed end 9 of the liquid supply 8, preferably at a point at which a laminar liquid film has already formed on the sliding surface 7.
  • the outlet opening 2a of the downcomer sheet 2 lies overall below the inlet end 9, so that no or as little as possible brine can spray into the downcomer sheet 2 and can there lead to caking of the scattering material S.
  • a more specific function of the downcomer sheet is to ensure that even when the entire downcomer assembly 2, 3, 4 (including Spreading plate 6) by means of a pivoting mechanism about the axis of rotation 5 of the spreading plate 6 relative to the stationary feed channel 1 of the spreading material S always impinges on the sliding surface 7 of the drop tube 3 at the same point. This would not be the case if the scattering material would fall directly from the feed channel 1 into the drop tube 3.
  • the outlet opening 2a of the downcomer sheet 2 is arranged opposite to the sliding surface 7.
  • the downcomer sheet 2 lies in a plane parallel to or preferably with the axis of rotation 5 of the spreading disc 6 and ends with its upper end below the feed channel 1 such that the conveyed scattering material S gravitationally falls vertically into the downcomer sheet 2.
  • the downcomer arch 2 tapers conically toward its exit end 2a, d. H. its diameter decreases accordingly and the curvature of the spreading material S leading wall of the downcomer sheet 2 increases accordingly.
  • the scattering material S is bundled and impinges on the sliding surface 7 of the drop tube 3 at a defined location.
  • the mouthpiece 4 Through the mouthpiece 4 at the lower end of the downpipe 3, the scattering substance-brine mixture is deflected again, here in particular in a direction opposite to the downcomer direction. Accordingly, the mouthpiece 4, like the drop tube sheet 2, runs in a plane parallel to or preferably with the axis of rotation 5 of the spreading disc 6.
  • the mouthpiece 4 can be formed as an integral part of the drop tube 3 (or chute), but is preferably designed as a separate part. which in particular can be adjustable in its inclination.
  • the scattering brine mixture impinges on an inner surface 4a of the mouthpiece 4 at a location 4b which is at a distance of at least 200 mm, preferably more than 230 mm, from the outlet end 4c of the mouthpiece 4. This distance allows the scattering agent-brine mixture again, after it was vortexed on impact at the point 4b, to further mix and in particular centrally bundle before it falls from the outlet end 4c on the spreading plate 6.
  • the inner surface 4a of the mouthpiece 4 therefore has an angle of inclination between 20 ° and 60 °, preferably 30 ° -45 °, in particular about 35 ° -40 °, relative to the axis of rotation 5 at the outlet end 4c.
  • the inner surface 4a of the mouthpiece 4 is arcuate and tapers in this embodiment conically towards its outlet end 4c. As with the downpipe 2, this conical taper serves to concentrate the litter-brine mixture. A constant cross-sectional profile is also possible.
  • Conventional spreading discs 6 have a central conical surface 11, which is usually provided with deep notches.
  • the inclination of the inner surface 4 a of the mouthpiece 4 at the outlet end 4 c relative to the axis of rotation 5 of the spreading plate 6 compared to the inclination of the conical surface 11 1 is selected so that the exiting from the mouthpiece 4 scattering substance-brine mixture of the conical surface 11th is detected, although the outlet end 4 c of the mouthpiece 4 facing away from the rotation axis 5.
  • the conical surface 11 can also be dispensed with, since the conical surface essentially has only the function of keeping the scattering substance away from the central region of the spreading plate when the scattering substance is supplied from radially outside.
  • the drive A for the spreading plate 6 is laterally offset relative to the axis of rotation 5 of the spreading plate 6 and a gear 13, which in the illustrated embodiment is a belt or chain hoist but also z. B. may be a gear transmission or other transmission, coupled to the spreading plate 6 in a driving manner.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Nozzles (AREA)
  • Catching Or Destruction (AREA)
  • Soil Working Implements (AREA)
  • Pretreatment Of Seeds And Plants (AREA)
EP05022391A 2005-10-13 2005-10-13 Winterdienststreuvorrichtung Withdrawn EP1775386A1 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP05022391A EP1775386A1 (de) 2005-10-13 2005-10-13 Winterdienststreuvorrichtung
NO20064537A NO345266B1 (no) 2005-10-13 2006-10-06 Strøanordning for vintervedlikehold.
JP2006280464A JP4827681B2 (ja) 2005-10-13 2006-10-13 凍結防止剤散布装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP05022391A EP1775386A1 (de) 2005-10-13 2005-10-13 Winterdienststreuvorrichtung

Publications (1)

Publication Number Publication Date
EP1775386A1 true EP1775386A1 (de) 2007-04-18

Family

ID=35840628

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05022391A Withdrawn EP1775386A1 (de) 2005-10-13 2005-10-13 Winterdienststreuvorrichtung

Country Status (3)

Country Link
EP (1) EP1775386A1 (ja)
JP (1) JP4827681B2 (ja)
NO (1) NO345266B1 (ja)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020116598A1 (de) 2020-06-24 2021-12-30 Aebi Schmidt Nederland Bv Winterdienst-Streugerät

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH382790A (de) * 1961-01-13 1964-10-15 Kofel Ferdinand Fahrzeug zum Streuen von körnigem Gut
EP0303082A1 (de) * 1987-08-13 1989-02-15 Schmidt Holding Europe GmbH Streufahrzeug
DE3924647A1 (de) 1989-07-26 1991-01-31 Schmidt Alfred Ing Gmbh Streuvorrichtung
EP1127981A2 (de) * 2000-02-21 2001-08-29 Küpper-Weisser GmbH Streuvorrichtung mit einem Zwischenbehälter zum Ausbringen von flüssigem Streugut
DE20119003U1 (de) 2001-08-30 2002-02-28 Lindner Anton Ortsgebundene oder streufahrzeugseitige Vorrichtung zur Befeuchtung von rieselfähigem Streugut
EP1433902A2 (de) 2002-12-24 2004-06-30 Küpper-Weisser GmbH Streustoffaustragvorrichtung
EP1491686A2 (de) 2003-06-26 2004-12-29 Schmidt Holding GmbH Streugerät

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3218005B2 (ja) * 1998-02-03 2001-10-15 範多機械株式会社 凍結防止剤散布車における凍結防止剤と溶液との混合装置
EP1775385B1 (de) * 2005-10-13 2016-06-29 Küpper-Weisser GmbH Winterdienststreuvorrichtung

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH382790A (de) * 1961-01-13 1964-10-15 Kofel Ferdinand Fahrzeug zum Streuen von körnigem Gut
EP0303082A1 (de) * 1987-08-13 1989-02-15 Schmidt Holding Europe GmbH Streufahrzeug
DE3924647A1 (de) 1989-07-26 1991-01-31 Schmidt Alfred Ing Gmbh Streuvorrichtung
EP1127981A2 (de) * 2000-02-21 2001-08-29 Küpper-Weisser GmbH Streuvorrichtung mit einem Zwischenbehälter zum Ausbringen von flüssigem Streugut
DE20119003U1 (de) 2001-08-30 2002-02-28 Lindner Anton Ortsgebundene oder streufahrzeugseitige Vorrichtung zur Befeuchtung von rieselfähigem Streugut
EP1433902A2 (de) 2002-12-24 2004-06-30 Küpper-Weisser GmbH Streustoffaustragvorrichtung
EP1491686A2 (de) 2003-06-26 2004-12-29 Schmidt Holding GmbH Streugerät

Also Published As

Publication number Publication date
JP4827681B2 (ja) 2011-11-30
JP2007120287A (ja) 2007-05-17
NO345266B1 (no) 2020-11-23
NO20064537L (no) 2007-04-16

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