EP1670992B1 - Systeme d'epandage pour engin de voirie et engin de voirie comprenant un systeme d'epandage - Google Patents

Systeme d'epandage pour engin de voirie et engin de voirie comprenant un systeme d'epandage Download PDF

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Publication number
EP1670992B1
EP1670992B1 EP04762891A EP04762891A EP1670992B1 EP 1670992 B1 EP1670992 B1 EP 1670992B1 EP 04762891 A EP04762891 A EP 04762891A EP 04762891 A EP04762891 A EP 04762891A EP 1670992 B1 EP1670992 B1 EP 1670992B1
Authority
EP
European Patent Office
Prior art keywords
spreader
salt
mixing chamber
funnel
liquid
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.)
Active
Application number
EP04762891A
Other languages
German (de)
English (en)
Other versions
EP1670992A1 (fr
Inventor
Soren Thisgaard
Anders Teglgaard Madsen
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.)
Epoke AS
Original Assignee
Epoke AS
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Publication date
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Publication of EP1670992A1 publication Critical patent/EP1670992A1/fr
Application granted granted Critical
Publication of EP1670992B1 publication Critical patent/EP1670992B1/fr
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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 invention relates to a spreader arrangement for spreading a mixture of granulated material, preferably salt, and a liquid or a solution of salt and water, said arrangement including a funnel attached to a vehicle and leading granulated material from a dosing means on the vehicle to a rotatable spreader disc at the bottom part of the funnel.
  • the object of the present invention is to provide a spreader arrangement rendering a more effective mixture of granulated material and liquid.
  • a spreader arrangement of the above type is according to the invention characterised by the features of claim 1.
  • the mixing chamber renders a more effective mixing of the granulated material and the liquid than hitherto known.
  • the means for feeding the liquid to be mixed with the granulated material may be provided, in the rotational direction of the spreader disc the liquid feeding means preferably being arranged behind the funnel for feeding of granulated material.
  • the spreader disc may comprise a motor cone with a built-in motor, preferably a hydraulic motor.
  • the hydraulic motor may drive the motor cone and thus a hub plate in the mixing chamber connected thereto.
  • the hub plate may be provided with frictional members ensuring that a more uniform scattering of the mixture of salt and salt water.
  • the frictional members may according to the invention be formed of mixer blades on the hub plate, preferably in form of involutes.
  • the maximum height of the mixer blades is 4 mm.
  • the mixing chamber is rounded at the bottom to ensure that the material is conveyed up the chamber wall and then drops down onto the mixer blades on the hub plate.
  • the mixing chamber is provided with an inwardly inclined or inwardly curved wall, the material thereby falling back onto the mixer blades instead of being thrown out of the mixing chamber.
  • the mixer blades may advantageously extend beyond the stationary part of the bottom of the chamber.
  • the spreader arrangement according to the invention shown in Fig. 1 to be arranged on a vehicle such as lorry includes a telescopic funnel 1 feeding granulated material such as salt from an electronically controlled dosing means on the vehicle. Via a bracket attached to the funnel 1 the spreader disc 5 is suspended at the lowermost part of the funnel 1.
  • a relatively stationary housing is provided, said housing having a cover 4 at the top with a comparatively large opening 4a for feeding granulated material such as salt and liquid such as salt water, respectively, a tube 1 a for feeding of the liquid being provided next to the funnel 1.
  • a hub plate 2 is provided which is firmly connected to the spreader disc 5 and rotates therewith, confer Fig. 2 .
  • the hub plate 2 is provided with frictional members in form of involute-shaped blades 2a of a height of preferably 4 mm.
  • the spreader arrangement communicates with a container 11 for discharging granulated material such as salt and a container 12 for discharging liquid such as salt water, confer Fig. 6 .
  • Fig. 8 shows the container 11 for discharging salt, a conveying means in form of a worm 13 being provided at the bottom of the container 11 for feeding the salt to the end of the container 11 with the spreader arrangement.
  • the discharge of salt and the discharge of salt water are electronically controlled by means of the control circuit shown in Fig. 9 and are described below.
  • the method of operation of the method of operation is as follows:
  • a hydraulic motor - confer Figs. 2 and 3 - inserted from below drives a motor cone communicating with the hub plate 2 and the spreader disc 5 and rotating these elements.
  • the mixing chamber and the associated cover 4 are, however, stationary during the rotation of the motor.
  • the mixing chamber is arranged concentrically in relation to the spreader disc 5.
  • Salt and salt water are now fed to the mixing chamber through the large opening 4a in the cover of the mixing chamber and conveyed by the mixer blades 2a on the rotating hub plate 2 to the wall 7 of the mixing chamber.
  • the salt and the salt water obtain such a high velocity towards the wall 7 that the mixture is thrown up onto the wall 7 and then drops down onto the mixer blades 2a, confer Fig. 5 .
  • the salt and salt water are then conveyed once more to the wall 7 of the mixing chamber and follow the wall until the mixture reaches an opening 8 in the wall 7 and is thrown out therefrom.
  • the mixing chamber has an inwardly inclined or inwardly curved wall 7 - confer Fig. 5 - so as to ensure that the material drops back onto the mixer blades 2a before being thrown out through the said opening 8 in the wall 7.
  • the blades 5a on the rotating spreader disc 5 are inclined in relation to vertical. This means that the material flow is gradually cut and thrown down into the rims between the spreader disc 5 and the blades 5a. The gradual cutting and throwing downwards against the rims effect that the material is spread out along the blades 5a. This in turn effects that the spread pattern obtains a wide angle of spread.
  • the angle of the blades 5a in relation to horizontal is about 45-55°.
  • a sharp edge between the spreader disc 5 and the blade 5a is to be provided, the material spreading otherwise not being effected in a satisfactory manner.
  • An asymmetric setting may be provided by altering the position of the opening 8 in the wall 7 of the mixing chamber by turning the mixing chamber such that the position of the opening 8 is altered.
  • the means for adjusting the angularity of the mixing chamber may for instance be formed of an articulated-rod mechanism which optionally may be operated manually.
  • a servomotor may be used.
  • Fig. 6 shows the spreader arrangement mounted in communication with an oblong V-shaped container 11 for feeding granulate
  • Fig. 7 shows the same in a side view.
  • a conveyor in form of a worm 13 is shown, said worm conveying the granulate to the funnel 1 arranged at the end of the container 11 and wherefrom it is discharged to the mixing chamber.
  • a liquid container 12 is arranged wherefrom liquid is discharged to the mixing chamber at the same time via a hose and a pump.
  • Fig. 9 illustrates the electronic circuit adapted to adjust the dosage per area unit, the spreading range, the liquid pump and the symmetry setting.
  • the supply of salt is controlled separately in relation to the supply of liquid.
  • the adjustment can be effected quite quickly within about 1 second.
  • the adjustment is performed by comparing an adjustment set value with the actual value, an error signal being generated which is used as a feedback signal in a feedback loop with negative feedback.
  • the supply of liquid is adjusted in a corresponding manner by comparing an adjusted set value with the actual value, an error signal being generated at said comparison and used as a feedback signal in a feedback loop.
  • the spreading range is adjusted by comparing a set value corresponding to the spreading range of the spreader disc, ie the rpm of the hydraulic motor, with the actual value so as to generate an error signal used in a feedback loop.
  • the symmetry position is adjusted in a similar manner by comparing a set value corresponding to the desired symmetry position with the actual value so as to generate an error signal which via a feedback signal is used to adjust a separate servomotor controlling the angularity of the opening in the wall 8 of the mixing chamber.
  • An optional, adjustable screen 15 - confer Fig. 10 - around the spreader disc 5 serves to further ensure that the spreading is effected away from the vehicle.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
  • Road Paving Machines (AREA)
  • Accessories For Mixers (AREA)
  • Vehicle Body Suspensions (AREA)

Claims (8)

  1. Système d'épandage pour épandre un mélange de matériau granulé, de préférence du sel, et un liquide ou une solution de sel et d'eau, ledit agencement comprenant un entonnoir (1), un disque d'épandage (5) au niveau de la partie inférieure dudit entonnoir (1), et un moyen (1a) pour délivrer le liquide à mélanger avec le matériau granulé, ledit entonnoir (1) pouvant s'attacher à un véhicule pour amener du matériau granulé d'un moyen de dosage sur le véhicule vers ledit disque d'épandage (5) rotatif, moyennant quoi une chambre de mélange est reliée au disque d'épandage (5) auquel sont fournis le matériau granulé et le liquide, caractérisé en ce que ladite chambre de mélange est dotée d'un fond rond et d'une paroi inclinée vers l'intérieur ou courbée vers l'intérieur.
  2. Système d'épandage selon la revendication 1, caractérisé en ce que le moyen (la) pour fournir le liquide est disposé près de l'entonnoir (1) dans la direction de rotation du disque d'épandage (5).
  3. Système d'épandage selon la revendication 2, caractérisé en ce que le moyen (la) pour fournir le liquide dans la direction de rotation du disque d'épandage (5) est agencé derrière l'entonnoir (1) pour fournir le matériau granulé.
  4. Système d'épandage selon une ou plusieurs des revendications précédentes, caractérisé en ce que le disque d'épandage (5) comprend un cône de moteur avec un moteur intégré, pour entraîner le cône de moteur et un flasque de moyeu (2) dans la chambre de mélange relié à celui-ci.
  5. Système d'épandage selon la revendication 4, caractérisé en ce que le flasque de moyeu (2) est doté d'éléments de frottement formés de pales de mélange (2a) disposées sur le flasque de moyeu (2).
  6. Système d'épandage selon la revendication 5, caractérisé en ce que les pales de mélange (2a) sont formées sous forme de développantes.
  7. Système d'épandage selon la revendication 5 ou 6, caractérisé en ce que les pales de mélange (2a) s'étendent au-delà de la partie stationnaire du fond de la chambre de mélange.
  8. Système d'épandage selon la revendication 7, caractérisé en ce que les pales de mélange (2a) s'étendent d'environ 10 mm au-delà de la partie stationnaire du fond de la chambre de mélange.
EP04762891A 2003-10-07 2004-10-05 Systeme d'epandage pour engin de voirie et engin de voirie comprenant un systeme d'epandage Active EP1670992B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK200301473A DK176222B1 (da) 2003-10-07 2003-10-07 Spredearrangement til en vejmaskine til spredning af en blanding af granuleret materiale og en væske samt en vejmaskine omfattende et sådant spredeapparat
PCT/DK2004/000671 WO2005033417A1 (fr) 2003-10-07 2004-10-05 Systeme d'epandage pour engin de voirie et engin de voirie comprenant un systeme d'epandage

Publications (2)

Publication Number Publication Date
EP1670992A1 EP1670992A1 (fr) 2006-06-21
EP1670992B1 true EP1670992B1 (fr) 2009-12-16

Family

ID=34400408

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04762891A Active EP1670992B1 (fr) 2003-10-07 2004-10-05 Systeme d'epandage pour engin de voirie et engin de voirie comprenant un systeme d'epandage

Country Status (5)

Country Link
EP (1) EP1670992B1 (fr)
AT (1) ATE452243T1 (fr)
DE (1) DE602004024698D1 (fr)
DK (1) DK176222B1 (fr)
WO (1) WO2005033417A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITTO20060934A1 (it) 2006-12-29 2008-06-30 Giletta Spa Gruppo spargitore per un veicolo spargitore di materiali alla rinfusa
DE102011106086A1 (de) 2011-06-08 2012-12-13 Aebi Schmidt Nederland Bv Streugerät
US8574048B1 (en) * 2012-07-10 2013-11-05 Cnh America Llc Combine spreader arrangement having independently positionable spreader disks
EP2826919B1 (fr) 2013-07-16 2016-08-31 Epoke A/S Dispositif d'étalement
KR101381230B1 (ko) * 2014-01-27 2014-04-04 이텍산업 주식회사 살포기의 제설제 균일 살포장치

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3419221A (en) * 1965-07-15 1968-12-31 Swenson Spreader & Mfg Co Material spreading and mixing apparatus

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT360070B (de) * 1975-12-15 1980-12-29 Kahlbacher Anton Vorrichtung zum bestreuen von verkehrsflaechen
DE3035360C2 (de) * 1980-09-19 1982-12-30 Willy 7715 Bräunlingen Küpper Streufahrzeug mit Streuvorrichtungen für granulierte und flüssige Taustoffe
DE3937675A1 (de) * 1989-11-13 1991-05-23 Kuepper Weisser Gmbh Streuvorrichtung zum ausstreuen angefeuchteter granulate

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3419221A (en) * 1965-07-15 1968-12-31 Swenson Spreader & Mfg Co Material spreading and mixing apparatus

Also Published As

Publication number Publication date
DK200301473A (da) 2005-04-08
DK176222B1 (da) 2007-03-05
ATE452243T1 (de) 2010-01-15
EP1670992A1 (fr) 2006-06-21
DE602004024698D1 (de) 2010-01-28
WO2005033417A1 (fr) 2005-04-14

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