EP1942230A1 - Streustoffverteiler für Streufahrzeuge - Google Patents

Streustoffverteiler für Streufahrzeuge Download PDF

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Publication number
EP1942230A1
EP1942230A1 EP07150486A EP07150486A EP1942230A1 EP 1942230 A1 EP1942230 A1 EP 1942230A1 EP 07150486 A EP07150486 A EP 07150486A EP 07150486 A EP07150486 A EP 07150486A EP 1942230 A1 EP1942230 A1 EP 1942230A1
Authority
EP
European Patent Office
Prior art keywords
spreader assembly
bulk material
blades
spreader
cavity
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.)
Granted
Application number
EP07150486A
Other languages
English (en)
French (fr)
Other versions
EP1942230B1 (de
Inventor
Enzo Giletta
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.)
Giletta SpA
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Giletta SpA
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Filing date
Publication date
Application filed by Giletta SpA filed Critical Giletta SpA
Publication of EP1942230A1 publication Critical patent/EP1942230A1/de
Application granted granted Critical
Publication of EP1942230B1 publication Critical patent/EP1942230B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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 spreader assembly for a vehicle for spreading anti-icing and/or abrasive material in bulk, e.g. salt, chlorides in general, sand, or grit on a road surface.
  • a spreader assembly for a vehicle for spreading anti-icing and/or abrasive material in bulk, e.g. salt, chlorides in general, sand, or grit on a road surface.
  • a spreader vehicle normally comprises one or more hoppers containing the solid material in bulk; possibly tanks containing liquid material for mixing with the solid material; and one or more spreader assemblies, which are fed with solid material from the hopper, and spread it on the road surface.
  • anti-icing materials such as salt
  • abrasive materials such as grit
  • a spreader assembly normally comprises one or more feed conduits for drop-feeding salt from the hopper; and one or more rotating disks with blades, located downstream from the feed conduits to spread the salt.
  • the salt expelled by centrifugal force, covers a spread area that fans out from the spreader assembly in the opposite direction to the travelling direction of the vehicle.
  • the spread area is conveniently controlled by the operator from the vehicle cab.
  • the solid material may be expelled moistened with liquid material.
  • WO-A1-2005033417 describes a spreader assembly defining a salt-liquid mixing chamber, and comprising a first number of rotary blades to mix the liquid and salt, and a second number of blades which receive and spread the moist salt onto the road surface.
  • Figures 1 and 2 show a spreader vehicle 1 for spreading bulk material, e.g. salt, and comprising a hopper 2; and a spreader assembly 3 fitted to vehicle 1 to spread salt onto a road surface.
  • bulk material e.g. salt
  • Spreader assembly 3 comprises a feed conduit 4 with an inlet 5 positioned to receive the salt from hopper 2; a frame 6 connected rigidly to an end portion 7 of feed conduit 4, at the opposite axial end to inlet 5; and a bladed spreader disk 8 fitted to frame 6 and rotating about a substantially vertical axis A.
  • Spreader assembly 3 is preferably fitted to vehicle 1 by means of feed conduit 4, which is designed to withstand static and dynamic stress produced, for example, by the mass of frame 6 and spreader disk 8.
  • Spreader assembly 3 also comprises a casing 9 fitted in rotary manner to frame 6 in an intermediate axial position between end portion 7 and spreader disk 8; and a preferably hydraulic rotary motor 10 fitted to frame 6, on the opposite axial side of spreader disk 8 to end portion 7.
  • frame 6 comprises a rail 11 to guide rotation of casing 9 about an axis preferably coincident with axis A.
  • Rotary motor 10 is fitted to spreader disk 8 in such a manner as to be protected against the incoming salt from feed conduit 4.
  • Rotary motor 10 is conveniently powered by conduits 12 fitted to frame 6 and connectable to the hydraulic circuit of vehicle 1, so the rotation speed of spreader disk 8 can be driver-controlled from the control panel inside the vehicle cab.
  • Figure 3 shows a more detailed view of frame 6, which comprises an arm 13 having an end portion 14 crosswise to axis A and underneath spreader disk 8; and a top bracket 15 over casing 9.
  • Arm 13 preferably also comprises a portion 16 parallel to axis A and connected rigidly to bracket 15.
  • arm 13 has a hollow cross section to house at least part of the length of conduits 12 and protect them against the spread material and any debris thrown up off the road surface by vehicle 1 travelling at high speed.
  • Bracket 15 defines a surface substantially perpendicular to axis A, and is connected rigidly to end portion 7 of feed conduit 4 by two plates 17.
  • Plates 17 are also connected rigidly to rail 11, which is preferably annular and surrounds end portion 7 of feed conduit 4.
  • casing 9 comprises a number of pins P ( Figure 2 ) equally spaced angularly, and which slide tangentially inside a groove 18 defined by rail 11 and preferably concentric with axis A.
  • Casing 9 comprises a tubular portion 19, preferably coaxial with axis A; and a cover portion 20 extending radially outwards from an end portion of tubular portion 19, and preferably larger in diameter than spreader disk 8.
  • Tubular portion 19 is large enough axially to define a cavity 21 closed at the bottom by spreader disk 8, and open towards feed conduit 4 to receive the salt.
  • Cover portion 20 defines, with spreader disk 8 and tubular portion 19, an annular volume 22, which communicates with cavity 21 through an opening 23 defined at least partly by tubular portion 19 and located downstream from feed conduit 4.
  • Annular volume 22 is open radially to permit salt spreading by spreader disk 8.
  • the perimeter of opening 23 is closed by spreader disk 8.
  • Spreader disk 8 comprises a first number of fixed blades 24 inside cavity 21; and a second number of blades 25 integral with blades 24 and located radially outwards of tubular portion 19.
  • Spreader assembly 3 preferably also comprises a tank 26 for distributing known liquid solutions on the salt to enhance its anti-icing effect.
  • tank 26 defines a storage volume 27 filled through an inlet 28 by a pipe connected to a circuit on vehicle 1; and an outlet 29 over opening 23.
  • Tank 26 is preferably fixed with respect to casing 9, and is mounted inside annular volume 22.
  • Spreader assembly 3 also comprises an actuating device for rotating casing 9 and setting opening 23 to the desired angular position.
  • the actuating device preferably comprises a rotary motor 30 fitted to bracket 15; and a sector gear 31 fixed with respect to casing 9 and meshing with a pinion connected to rotary motor 30.
  • the actuating device comprises a hydraulic or electric actuator.
  • Spreader assembly 3 preferably also comprises one or more angular position sensors, which determine the angular position of opening 23, and transmit a signal to an instrument in the driver's cab to enable the driver to control orientation of the salt spread area.
  • the angular position sensor is preferably a discrete type, and comprises a counter 32 with a movable rod 33, which cooperates with a number of angularly equally spaced projections fixed angularly with respect to casing 9.
  • the sensor may comprise an encoder.
  • Spreader assembly 3 operates as follows.
  • the salt flows into cavity 21, where it is expelled - evenly and always along the same trajectory, regardless of the type, quantity, and quality of the material being spread - through opening 23 into annular volume 22 by blades 24.
  • the salt As it flows through opening 23, the salt is moistened with the solution from tank 26, which overflows from storage volume 27 to form a homogenous film.
  • the salt is therefore moistened after it leaves blades 24, and cannot flow back into cavity 21.
  • the salt is moistened, after it leaves blades 24, along a path through opening 23, so that the moist grains no longer come into contact with blades 24 and/or do not remain inside cavity 21.
  • Blades 25 then spread the salt onto the road surface.
  • the driver operates the mechanically or electrically controlled actuator 30 to move opening 23 or the whole assembly, and controls the position of opening 23 by means of the angular position sensor.
  • Blades 24 therefore substantially define an expulsion device for feeding the salt from cavity 21 through opening 23 into annular volume 22.
  • opening 23 defines a specific flow section defining the cross section of salt flow onto blades 25, which are therefore supplied with salt flow of regular, constant cross section, by virtue of the forced expulsion performed by the blades on the inner disk.
  • Blades 24 also provide for disposing of any salt accumulating inside cavity 21.
  • Spreader assembly 3 according to the present invention has the following advantages.
  • Opening 23 defined by the rotary casing 9 provides for obtaining a precise, adjustable spread area.
  • Blades 24 provide for smooth expulsion of the salt from cavity 21, regardless of the type, condition, or quantity of salt involved.
  • Spreader assembly 3 is compact and lightweight, and can be connected to vehicle 1 by means of feed conduit 4.
  • outlet 29 may be located immediately upstream from opening 23, so as to moisten the salt as it is about to flow out of cavity 21 towards blades 25.
  • the liquid and salt are mixed inside cavity 21, but not by blades 24.
  • the salt is directed towards opening 23 by centrifugal force, and cannot flow back into cavity 21.
  • outlet 29 is so located that the salt is moistened as the individual grains travel towards opening 23 along a clear trajectory produced substantially by centrifugal force, i.e. when the grains are already detached from blades 24.
  • the salt is moistened along a path defined between the radial ends of blades 24 and blades 25 through opening 23, and the moist grains do not travel through the expulsion device.
  • blades 24 may be radially smaller than tubular portion 19, and outlet 29 may be located adjacent to opening 23, in the gap between blades 24 and tubular portion 19.
  • outlet 29 may be located some distance from opening 23, and the liquid may be pressurized to strike the salt when the grains are already detached from blades 24 and directed towards opening 23.
  • Opening 23 may also be fixed with respect to frame 6.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Nozzles (AREA)
  • Road Paving Machines (AREA)
  • Fertilizing (AREA)
  • Road Repair (AREA)
  • Special Spraying Apparatus (AREA)
EP07150486.4A 2006-12-29 2007-12-28 Streustoffverteiler für Streufahrzeuge Active EP1942230B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT000934A ITTO20060934A1 (it) 2006-12-29 2006-12-29 Gruppo spargitore per un veicolo spargitore di materiali alla rinfusa

Publications (2)

Publication Number Publication Date
EP1942230A1 true EP1942230A1 (de) 2008-07-09
EP1942230B1 EP1942230B1 (de) 2017-12-27

Family

ID=39236104

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07150486.4A Active EP1942230B1 (de) 2006-12-29 2007-12-28 Streustoffverteiler für Streufahrzeuge

Country Status (4)

Country Link
EP (1) EP1942230B1 (de)
CA (1) CA2617215C (de)
DK (1) DK1942230T3 (de)
IT (1) ITTO20060934A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012167874A1 (de) 2011-06-08 2012-12-13 Aebi Schmidt Nederland Bv Streugerät
DE102013002751A1 (de) * 2013-02-19 2014-09-04 Rauch Landmaschinenfabrik Gmbh Verteilmaschine mit einem ihrer Verteilerscheibe zugeordneten Sensor

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1215188B (de) * 1961-04-07 1966-04-28 Atkinson S Agricultural Applia Streuvorrichtung
FR2175470A5 (de) * 1972-03-06 1973-10-19 Laursen As
EP0048465A2 (de) * 1980-09-19 1982-03-31 Willy Küpper Streufahrzeug für feste und flüssige Taustoffe
DE4235426C1 (de) * 1992-10-21 1994-02-10 Kuepper Weisser Gmbh Streuvorrichtung mit Flüssigkeitszufuhr für Winterstraßendienst
WO2005033417A1 (en) 2003-10-07 2005-04-14 Epoke A/S Spreader arrangement for a road machine
EP1634997A1 (de) * 2004-09-14 2006-03-15 Kugelmann, Josef Streustoffverteiler für Streufahrzeuge

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1215188B (de) * 1961-04-07 1966-04-28 Atkinson S Agricultural Applia Streuvorrichtung
FR2175470A5 (de) * 1972-03-06 1973-10-19 Laursen As
EP0048465A2 (de) * 1980-09-19 1982-03-31 Willy Küpper Streufahrzeug für feste und flüssige Taustoffe
DE4235426C1 (de) * 1992-10-21 1994-02-10 Kuepper Weisser Gmbh Streuvorrichtung mit Flüssigkeitszufuhr für Winterstraßendienst
WO2005033417A1 (en) 2003-10-07 2005-04-14 Epoke A/S Spreader arrangement for a road machine
EP1634997A1 (de) * 2004-09-14 2006-03-15 Kugelmann, Josef Streustoffverteiler für Streufahrzeuge

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012167874A1 (de) 2011-06-08 2012-12-13 Aebi Schmidt Nederland Bv Streugerät
DE102011106086A1 (de) 2011-06-08 2012-12-13 Aebi Schmidt Nederland Bv Streugerät
DE102013002751A1 (de) * 2013-02-19 2014-09-04 Rauch Landmaschinenfabrik Gmbh Verteilmaschine mit einem ihrer Verteilerscheibe zugeordneten Sensor

Also Published As

Publication number Publication date
ITTO20060934A1 (it) 2008-06-30
EP1942230B1 (de) 2017-12-27
CA2617215A1 (en) 2008-06-29
CA2617215C (en) 2015-04-21
DK1942230T3 (en) 2018-04-09

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