WO2004033800A1 - Systeme d'etalement d'asphalte - Google Patents

Systeme d'etalement d'asphalte Download PDF

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Publication number
WO2004033800A1
WO2004033800A1 PCT/DK2003/000541 DK0300541W WO2004033800A1 WO 2004033800 A1 WO2004033800 A1 WO 2004033800A1 DK 0300541 W DK0300541 W DK 0300541W WO 2004033800 A1 WO2004033800 A1 WO 2004033800A1
Authority
WO
WIPO (PCT)
Prior art keywords
asphalt
vehicle
wheel
driving
spreading
Prior art date
Application number
PCT/DK2003/000541
Other languages
English (en)
Inventor
Christian Iversen
Poul F. MØLLER
Original Assignee
Grindsted Kommune, Park & Vej
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 Grindsted Kommune, Park & Vej filed Critical Grindsted Kommune, Park & Vej
Priority to AU2003250809A priority Critical patent/AU2003250809A1/en
Priority to EP03807738A priority patent/EP1556550A1/fr
Publication of WO2004033800A1 publication Critical patent/WO2004033800A1/fr

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/12—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for distributing granular or liquid materials
    • E01C19/18—Devices for distributing road-metals mixed with binders, e.g. cement, bitumen, without consolidating or ironing effect
    • E01C19/182—Devices for distributing road-metals mixed with binders, e.g. cement, bitumen, without consolidating or ironing effect solely for depositing

Definitions

  • the present invention concerns a spreading system, particularly for asphalt concrete, including a vehicle with a dump body, preferably in the form of a container with a number of gates at a rear wall of the container, and an asphalt-spreading drag that may be connected to a rear end of the vehicle, where a driving mechanism powered by the hydraulic system of the vehicle is adapted to be moved between an active position where a driving wheel of the driving mechanism is in frictional engagement with at least one wheel of the vehicle, and an inactive position where the driving wheel of the driving mechanism is not engaging the wheel of the vehicle.
  • large contractor's machines are used for the work.
  • large asphalt spreaders where lorries are dumping asphalt into the hopper of the asphalt spreader before spreading on the road surface.
  • Such asphalt spreaders are provided as different types, either as an independent vehicle or a unit pushing a lorry driving in front with the desired speed.
  • small repair work is meant repair of holes and bumps in a road surface, e.g. wheel tracks, settlings, and potholes produced by wear and climatic influence, being typically small stretches with limited width.
  • a lorry with a dump body In order to avoid costs of the above mentioned contractor's machines, in many places, instead of asphalt drags coupled to a vehicle, typically a lorry with a dump body, so that the asphalt is loaded from the lorry and over into the asphalt drag.
  • the lorry with the asphalt drag may normally be geared down to about 60 m per hour. In many cases, this spreading speed is still too high, as it is necessary that the spreading speed of the asphalt is adjusted to the working rate of the crew spreading and fin- ishing the asphalt, so that the spread asphalt achieves high quality and fine finish.
  • the driving mechanism besides the driving wheel includes an oil motor, a reduction gear and an oil manifold, where the hydraulic system of the vehicle is driving connected with the hydraulic motor which via the reduction gear is driving connected with the drive wheel.
  • the asphalt drag is connected to a rear end of the vehicle so that when the platform body of the vehicle is tipped, asphalt lying in the body will be tipped directly down into the asphalt drag.
  • the asphalt drag is connected to the rear end of the vehicle with a number of chains providing that the asphalt drag readily may be con- nected/disconnected the rear end of the lorry. Furthermore, the chains are disposed so that the asphalt drag does not tilt when it is dragged after the lorry or lifted up from the ground.
  • a driving mechanism coupled to tlie hydraulic system of the lorry and provided with a drive wheel disposed so that it may be moved between an active position, where there is frictional engagement with at least one of the wheels of the lorry, and an inactive position where there is not engagement with the wheel of the lorry.
  • the drive mechanism is made with a drive wheel, an oil motor, a reduction gear and an oil manifold.
  • the drive wheel in active position is engaging the tyres of the lorry, so that the drive wheel via the reduction gear will transfer the power from the oil motor to the at least one tyre so that the lorry will move back or forward depending on the rotational speed of the drive wheel.
  • the drive wheel can be placed so that it is in fric- tional engagement with e.g. two tyres. This will typically be the case for lorries with dual rear wheel set.
  • the drive wheel is a Robson wheel having a granulated surface so that the drive wheel is more easily frictionally engaged with the face or the side of the lorry tyre and thereby forces the tyre to rotate.
  • the drive wheel may be designed with projections grasping the surface of the tyres.
  • the drive mechanism By making the drive mechanism as a unit connected with the hydraulic system of the lorry, it is easy to incorporate the drive mechanism in the existing structure of the lorry.
  • the drive mechanism may be placed in connection with the side members of the lorry and between the first wheel set and the rearmost wheel set.
  • the drive mechanism may be provided in connection with the drive shaft arrangement of the vehicle.
  • the gates of the container are constituted by side hinged gates that are operated by a number of hydraulic cylinders which are coupled either directly to the hydraulic system of the lorry or to the hydraulic drive mechanism.
  • the hydraulic control implies that the gates may be opened and put in different positions so that the width of the opening at rear of the lorry container has a desired width enabling discharge of an amount of asphalt down into the asphalt drag corresponding to the spreading speed.
  • the side-hinged gates which may be opened to the rear, will have a funnel function for asphalt lying in the container, so that the asphalt will be led down into the desired area of the asphalt drag. It may be an advantage if the repair area has a narrower width than the asphalt drag.
  • the control of the asphalt drag is furthermore hydraulically comiected to the drive mechanism via a distributor providing for excess oil from the drive mechamsm to be conducted to the asphalt drag and may be used for e.g. lifting and lowering the asphalt drag, whereby the layer thickness of the spread asphalt may be adjusted.
  • the spreading speed can be reduced, and subsequently it will be possible to reduce the number of persons that are to be used for finishing the spread asphalt.
  • the spreading system further includes a control panel with a number of control valves and switches that are disposed on the asphalt drag and/or the rear end of the lorry, and are adapted for controlling the hydraulic cylinders of the container gates, the drive mechanism and the asphalt drag.
  • these control valves and switches may be remotely controlled so that one person possibly may go around with a portable console and con- trol the spreading process therefrom.
  • a receiver is to be provided.
  • control panel it may be possible to construct the control panel so that it furthermore may control the front wheel set of the lorry, implying that it is not necessary to have a person sitting in the lorry.
  • This possibility is, however, only present when/if this spreading system is allowed by the work environment authorities that are to judge whether it is safe to remote control a lorry from an external position. Acceptance of the spreading system will imply that only two persons are required for the spreading process.
  • the driving mechanism of the spreading system is cheap to acquire and easy to fit while at the same time the drive mechanism may readily be mounted in most standard vehicles.
  • the required number of persons is reduces as there is only need for a maximum of three persons to perform the spreading process and finishing treatment as compared with today, where a minimum of five persons are used.
  • the quality and finish of the road surface is improved as the spreading speed is adjusted so that time is provided for finishing the spread asphalt.
  • the asphalt drag is adapted to be connected to and disconnected from the rear end of the lorry, which means that it is not necessary to invest in self-propelled asphalt spreaders.
  • Fig. 1 shows a side view of a lorry with asphalt drag according to the invention
  • Fig. 2 shows the rear end of a lorry with an asphalt drag according to the invention
  • Fig. 3 shows a schematic setup of the drive mechanism.
  • Fig. 1 shows a spreading system 1 including a common lorry 2 with a set of front wheels 8 and a set of dual rear wheels 7.
  • the lorry 2 has a dump body 3 in the form of a covered container 4 with side hinged gates (not shown) disposed at the rear end of the container 4.
  • an asphalt drag 5 which in the shown embodiment is coupled to the lorry 2 with chains 6 and disposed so that asphalt from the container 4 will be loaded directly into asphalt drag 5 when the container 3 is tilted, and the side hinged gates (not shown) are opened.
  • the asphalt drag 5 is provided with height adjustable runners 9 providing the possibility of adjusting the thickness of the spread asphalt.
  • the asphalt drag 5 is furthermore provided with a control panel 11 with a number of control valves 12, and the rear end of the lorry 2 is equipped with a control panel 13 with a number of control switches 14.
  • control panels 11, 13 are disposed in immediate vicinity of each other, it will be possible for one person to control the entire spreading process and the movement of the lorry 2 from a work station near the rear end of the lorry. 2.
  • the drive wheel 15 (Robson wheel) is here shown in inactive position, where it is not engaging the dual rear wheel set 7. In an active position, the drive wheel 15 will be in frictional engagement with the surface of the tyres in the dual rear wheel set 7.
  • Fig. 2 shows the rear end of lorry 2 on which the asphalt drag 5 is coupled to the chains 6 in elevated position.
  • the side hinged gates 10 of the container 4 are controlled by hydraulic cylinders 16 providing the possibility of opening the rear end of the container 4 to a pre-determined width, whereby the discharged amount of asphalt may be determined.
  • side hinged gates 10 will act as guide plates so that asphalt in the container 4 will be conducted down into the desired area of the asphalt drag 5.
  • Fig. 3 shows a schematic diagram of the drive mechanism 20 that include an oil pump 21 connected to the hydraulic system 22 of the lorry.
  • Oil pump 21 is a double pump (preferably 2 x 56 1) so that hydraulic oil is conducted to both drive mechanism 20 and dump body 3, and to the cylinders 16 of the gates 10. From oil pump 21, hydraulic oil is conducted through a three-way valve 24 and onward to a pressure relief valve 25, and then to an oil manifold 26 providing that hydraulic oil is distributed to the orbit motor 27 and the asphalt drag 5.
  • the orbit motor 27 drives the drive wheel 15 having frictional contact with the wheels in the dual rear wheel set 7.
  • the return oil from the asphalt drag 5 and the orbit motor 27 is returned to an oil cooler 29 and a tank 30, after which it is pumped out again to the drive mechanism 20 or dump body 3 via the oil pump 21.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Paving Machines (AREA)

Abstract

La présente invention concerne un système d'étalement (1), en particulier destiné à l'asphalte, qui comprend un véhicule (2) avec une carrosserie de déchargement (3) de préférence en forme de récipient (4) avec un certain nombre de portes (10) situées sur une paroi arrière du récipient (4) et, un dispositif de traîne étalant l'asphalte (5) qui peut être raccordé à l'arrière du véhicule (2), un mécanisme d'entraînement (20) alimenté par le système hydraulique du véhicule (2) étant conçu pour être déplacé entre une position active dans laquelle une roue d'entraînement (15) du mécanisme d'entraînement (20) est en contact par frottement avec au moins une roue (7) du véhicule et, une position inactive dans laquelle la roue d'entraînement (15) du mécanisme d'entraînement (20) n'est pas en contact avec la roue (7) du véhicule. Ce mécanisme d'entraînement (20), outre la roue d'entraînement, comprend un moteur hydraulique (21), un engrenage de réduction (28) et un collecteur d'huile (26), le système hydraulique du véhicule (2) étant connecté menant au moteur hydraulique (21), lequel via l'engrenage de réduction est connecté menant à la roue d'entraînement (15).
PCT/DK2003/000541 2002-10-10 2003-08-14 Systeme d'etalement d'asphalte WO2004033800A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU2003250809A AU2003250809A1 (en) 2002-10-10 2003-08-14 Asphalt-spreading system
EP03807738A EP1556550A1 (fr) 2002-10-10 2003-08-14 Systeme d'etalement d'asphalte

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DKBA200200313 2002-10-10
DKPA200200313 2002-10-10

Publications (1)

Publication Number Publication Date
WO2004033800A1 true WO2004033800A1 (fr) 2004-04-22

Family

ID=34306684

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DK2003/000541 WO2004033800A1 (fr) 2002-10-10 2003-08-14 Systeme d'etalement d'asphalte

Country Status (3)

Country Link
EP (1) EP1556550A1 (fr)
AU (1) AU2003250809A1 (fr)
WO (1) WO2004033800A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1607526A1 (fr) * 2004-06-09 2005-12-21 Grindsted Kommune, Park & Vej Système combiné d'entraínement et d'étalement d'asphalte

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3796354A (en) * 1969-06-02 1974-03-12 C Steinke Self-unloading box with transverse discharge opening including a continuous spiral auger with cutting means
EP0493664A1 (fr) * 1990-12-14 1992-07-08 Joseph Vögele AG Procédé pour la pose de couches de matériel de voirie à l'aide d'un finisseur équipé d'un aggrégat de compactage
WO2003004775A1 (fr) * 2001-07-06 2003-01-16 John Crampton Procede et appareil d'epandage de granulats et de materiaux routiers associe a la vitesse d'un vehicule

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3796354A (en) * 1969-06-02 1974-03-12 C Steinke Self-unloading box with transverse discharge opening including a continuous spiral auger with cutting means
EP0493664A1 (fr) * 1990-12-14 1992-07-08 Joseph Vögele AG Procédé pour la pose de couches de matériel de voirie à l'aide d'un finisseur équipé d'un aggrégat de compactage
WO2003004775A1 (fr) * 2001-07-06 2003-01-16 John Crampton Procede et appareil d'epandage de granulats et de materiaux routiers associe a la vitesse d'un vehicule

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1607526A1 (fr) * 2004-06-09 2005-12-21 Grindsted Kommune, Park & Vej Système combiné d'entraínement et d'étalement d'asphalte

Also Published As

Publication number Publication date
EP1556550A1 (fr) 2005-07-27
AU2003250809A1 (en) 2004-05-04

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