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EP3767037B1 - Installation de fraisage - Google Patents

Installation de fraisage Download PDF

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Publication number
EP3767037B1
EP3767037B1 EP20183532.9A EP20183532A EP3767037B1 EP 3767037 B1 EP3767037 B1 EP 3767037B1 EP 20183532 A EP20183532 A EP 20183532A EP 3767037 B1 EP3767037 B1 EP 3767037B1
Authority
EP
European Patent Office
Prior art keywords
milling
conveyor belt
milling system
hydraulic
wheel housing
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
EP20183532.9A
Other languages
German (de)
English (en)
Other versions
EP3767037A1 (fr
Inventor
Daniel Bergert
Wolfgang Beck
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.)
Bergert Group GmbH
Original Assignee
Bergert Group 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 Bergert Group GmbH filed Critical Bergert Group GmbH
Publication of EP3767037A1 publication Critical patent/EP3767037A1/fr
Application granted granted Critical
Publication of EP3767037B1 publication Critical patent/EP3767037B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F5/00—Dredgers or soil-shifting machines for special purposes
    • E02F5/02—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches
    • E02F5/08—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with digging wheels turning round an axis
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F5/00—Dredgers or soil-shifting machines for special purposes
    • E02F5/02—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches
    • E02F5/14—Component parts for trench excavators, e.g. indicating devices travelling gear chassis, supports, skids
    • E02F5/145—Component parts for trench excavators, e.g. indicating devices travelling gear chassis, supports, skids control and indicating devices
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F7/00—Equipment for conveying or separating excavated material
    • E02F7/02—Conveying equipment mounted on a dredger

Definitions

  • the present invention relates to a milling system for making a laying slot in a ground surface, which has a carrier vehicle and a milling device which is arranged at the front of the carrier vehicle, is connected to the carrier vehicle and has a milling wheel, at least one hydraulic drive and a milling wheel housing with a milling wheel provided at the front Ejection window on which a conveyor belt is provided during operation of the milling system.
  • Milling systems of this type are used for so-called trenching, in which a slot is milled into a road surface, an asphalt footpath or cycle path or into unpaved surfaces, into which burial micropipes or cables are then inserted and which is then sealed with a filling compound.
  • Milling with the milling wheel enables precise and clean cutting of asphalt, concrete and stone without damaging the trench wall of the slot created.
  • a milling machine of the type mentioned at the outset was presented by the Simex company.
  • the advantage of the conveyor belt arranged at the ejection window is that the excavation material produced during milling can be transported away on the conveyor belt.
  • the conveyor belt is provided at the front of the carrier vehicle, only relatively small and light conveyor belts can be used here, with which, for example, an excavator shovel can be filled with the milled material, but not a truck traveling with it, since the milling system would otherwise tip over.
  • an excavator with a large shovel has to travel along, which can then be unloaded by the excavator onto a truck. This is very cumbersome, time consuming and expensive.
  • the pamphlet WO 2016/102646 A1 describes a device for removing solid surfaces, which can be attached to the front of a carrier vehicle.
  • the device has a housing in which a rotatable removal device, such as a paddle wheel, is installed.
  • the impeller is driven by a hydraulic motor included in the device.
  • a coupling is attached to the housing for attaching the device to the carrier vehicle.
  • a discharge opening aligned in the direction of travel is provided in the housing.
  • the device has, among other things, a hydraulic cylinder.
  • a milling system for making a laying slot in a soil surface which comprises a carrier vehicle, a milling wheel arranged at the front of the carrier vehicle, connected to the carrier vehicle and having a hydraulic drive, and a milling wheel housing provided around the milling wheel with an ejection window provided at the front of the milling wheel in which a conveyor belt is provided during operation of the milling system, in which a front hydraulic support cylinder, which is vertically aligned in a working position of the milling system and can be extended downwards, is provided on the milling wheel housing in the forward direction of travel of the milling system in front of the axis of rotation of the milling wheel; in the forward direction of travel of the milling system behind the axis of rotation of the milling wheel, a rear hydraulic support cylinder which is vertically aligned in the working position of the milling system and can be extended upwards is provided; and a hydraulic balance cylinder hydraulically coupling the front and rear hydraulic support cylinders.
  • the cutter wheel housing is provided around the top and sides of the cutter wheel.
  • the cutting wheel with the cutting wheel teeth provided on it partially protrudes from the bottom of the cutting wheel housing in order to be able to cut.
  • the milling wheel When the milling machine is in operation, the milling wheel rotates clockwise when viewed from the right. Material milled off the teeth of the milling wheel is taken along by the rotation of the milling wheel and ejected onto the conveyor belt through the ejection window. The conveyor belt then transports the material away from the milling machine.
  • the conveyor belt is in front of the cutting wheel and not to the side of the cutting wheel. Therefore, in the milling system according to the invention, the rotational movement of the milling wheel promotes the ejection of material onto the conveyor belt.
  • the milled material does not have to be deflected to the side. Instead, the material is already ejected in the transport direction.
  • the inventive arrangement of the conveyor belt in front of the cutting wheel excavated material can be transported by the conveyor belt directly to a vehicle driving ahead.
  • the hydraulic cylinder arrangement provided on the milling system according to the invention ensures that the front load, which is caused by the conveyor belt and the material that is conveyed on the conveyor belt, is balanced, so that the milling system does not twist or tilt or even tip over during operation.
  • the hydraulic cylinder arrangement stabilizes the milling system without having to add weight to the milling wheel housing.
  • the rear hydraulic support cylinder and the front hydraulic support cylinder are preferably designed as plunger piston cylinders.
  • the respective pistons located in the rear hydraulic support cylinder, the hydraulic compensating cylinder and the front hydraulic support cylinder are each in a middle position.
  • Hydraulic fluid is located in the rear hydraulic support cylinder in a hydraulic area formed below the piston located therein.
  • Hydraulic fluid is located in the front hydraulic support cylinder in a hydraulic area formed above the piston located therein.
  • Hydraulic fluid is located in the hydraulic compensating cylinder both in hydraulic areas formed above and below the piston located therein.
  • An upper hydraulic area of the hydraulic compensating cylinder is connected to the lower hydraulic area of the rear hydraulic support cylinder via a hydraulic line.
  • a lower hydraulic section of the hydraulic balance cylinder is connected to the upper hydraulic section of the front hydraulic support cylinder via a hydraulic line.
  • the piston rod of the rear hydraulic support cylinder protrudes upwards from the relevant cylinder.
  • the piston rod of the front hydraulic support cylinder protrudes downwards from the relevant cylinder.
  • a lower area of the cylinder of the rear hydraulic support cylinder is preferably pivotably connected to a lower cutting wheel housing area located behind the axis of rotation of the cutting wheel in the forward direction of travel of the cutting system.
  • An upper end of the piston rod of the rear hydraulic support cylinder is connected to an upper cutting wheel housing area located behind the axis of rotation of the cutting wheel in the forward travel direction of the cutting system.
  • a lower end of the The piston rod of the front hydraulic support cylinder is preferably pivotably connected to a lower cutting wheel housing area located in the forward travel direction of the cutting system in front of the axis of rotation of the cutting wheel.
  • An upper area of the cylinder of the front hydraulic support cylinder is connected to an upper cutting wheel housing area located in front of the axis of rotation of the cutting wheel in the forward travel direction of the cutting system.
  • the closed hydraulic cylinder arrangement used and described above thus has a self-leveling effect.
  • the cutting wheel housing and also the cutting wheel depth adjustment of the cutting wheel are always held in a horizontal position, despite the additional add-on weight caused by the conveyor belt and the material lying on it or being conveyed.
  • the milling system according to the invention compared to the prior art to provide a longer conveyor belt with a correspondingly greater weight close to the milling wheel on the milling wheel housing, in order to bridge the distance and the difference in height to a truck driving in front, for example, and to load it with the milled material to be loaded directly by the conveyor belt.
  • vents are provided on the front hydraulic support cylinder and on the rear hydraulic support cylinder.
  • the conveyor belt is at least 3 m long, particularly preferably at least 3.50 m long. Such a length is sufficient to be able to fill a truck directly with the conveyor belt with the milled material.
  • a conveyor belt of the conveyor belt is preferably at least 25 cm wide, particularly preferably at least 30 cm wide. With such a conveyor belt width, the milled material produced during milling can be picked up and removed efficiently.
  • the conveyor belt is pivotably mounted on the milling wheel housing and can be moved from the working position of the milling system, in which a rear end of the conveyor belt is located at the ejection window, to a holding or transport position of the milling system, in which the conveyor belt is at a Holding side of the cutting wheel housing is held, and pivoted vice versa. This facilitates the maneuverability of the milling system and saves space when the milling system is not in use.
  • the milling system is constructed in such a way that a horizontally aligned transport support for the conveyor belt, which is mounted on the milling wheel housing, protrudes laterally on the holding side of the milling wheel housing.
  • the conveyor belt can be placed on this transport support in the holding or transport position of the milling system and secured to it.
  • Milling wheel housing is provided with a horizontally pivotable rotary pivot device connected to the conveyor belt, with a retractable and extendable tilt adjustment cylinder attached to it for the conveyor belt.
  • a horizontally pivotable rotary pivot device connected to the conveyor belt
  • a retractable and extendable tilt adjustment cylinder attached to it for the conveyor belt.
  • the angle of inclination of the conveyor belt can be adjusted hydraulically from a driver's cab of the carrier vehicle. This makes it possible for the milled material to be thrown off the conveyor belt in a targeted manner onto trucks with different loading heights, whereby the loading capacity of the loading area of the respective truck can be fully utilized.
  • the inclination or setting angle of the conveyor belt can preferably be adjusted with the aid of the inclination adjustment cylinder in a range from 0° to 30°, particularly preferably in a range from 0° to 45°.
  • the same hydraulic drive can be used to control the inclination adjustment cylinder as for adjusting the milling wheel.
  • the milling system then advantageously has a hydraulic valve that can be electrically controlled and switched over from the carrier vehicle, for example via a joystick, and is integrated into the hydraulic supply of the inclination adjustment cylinder and the milling wheel drive.
  • the inclination adjustment cylinder is connected to both longitudinal support profiles of the conveyor belt. This prevents twisting of the conveyor belt.
  • a U-shaped fork can be provided at one end of the inclination adjustment cylinder facing the conveyor belt, which grips the conveyor belt from above, the side struts of the U being fastened to the longitudinal support profiles of the conveyor belt.
  • the inclination adjustment cylinder is mounted on a holding column profile of the rotating/pivoting device that is vertically aligned when the milling system is in the working position, and can be pivoted on it.
  • the vertically aligned support stand profile preferably forms a right angle with the inclination adjustment cylinder in the working position of the milling system.
  • a suitable height or inclination of the conveyor belt can also be set by the height of the support stand profile.
  • the conveyor belt is always held securely by means of the rotating/pivoting device and the inclination adjustment cylinder provided thereon, and the inclination of the conveyor belt can also be suitably changed during the pivoting of the conveyor belt from the working position into a holding or transport position.
  • the holding stand profile is connected via a holding angle profile construction to a pivoting stand profile which can be rotated about its longitudinal axis and is vertically aligned in the working position of the milling plant. Due to the bracket profile construction, the support stand profile be positioned centrally relative to the conveyor belt, so that the conveyor belt can be held against rotation, although the swivel stand profile itself is attached off-centre to the conveyor belt on the side of the milling system.
  • a support angle profile construction or support bracket is provided on the swivel stand profile which is guided around the rear side of a lower end of the conveyor belt and can be swiveled around the swivel stand profile.
  • the conveyor belt is suitably supported, in particular below the ejection window.
  • a buckling safety device is provided between the inclination adjustment cylinder and the conveyor belt.
  • the buckling protection can be designed, for example, in the form of a safety buckling linkage.
  • the kink protection increases the safety of the conveyor belt's mounting, which is advantageous, for example, if the conveyor belt is driven against an obstacle.
  • an ejection wedge or tooth is provided within the cutting wheel housing, in front of and above the cutting wheel, which is aligned in the forward direction of travel and whose underside forms an angle with the ground surface.
  • the underside of the ejector wedge or tooth may be straight or concave. Due to the angle of the ejection wedge or tooth, the milled material is preferably directed in the direction of the conveyor belt and is not carried along by the milling wheel in its rotary movement. The ejection is therefore forward.
  • the conveyor tunnels can have a height of 3 to 5 cm, preferably 4 cm.
  • the conveyor lugs are preferably made of rubber or PVC fabric belt.
  • the conveyor cleats can, for example, be vulcanized onto the conveyor belt. With the aid of the conveyor cleats, the throwing distance of the conveyor belt can be extended in comparison to using a conveyor belt without such conveyor cleats.
  • At least one opening is provided in a rear area of the milling wheel housing opposite the ejection window.
  • the opening can be closed or closable by a flap.
  • this opening is preferably kept open during operation of the milling system. This results in a backwards suction, whereby material falling out of the cutting wheel housing at the side can be avoided or at least greatly reduced.
  • the carrier vehicle is a caterpillar or tracked vehicle. This results in a particularly high tipping safety of the milling system. In principle, however, it is also possible for the carrier vehicle to have wheels.
  • an ejection hood open over the conveyor belt is attached to the ejection window.
  • the ejection hood extends the ejection channel so that the milled material can fall onto the conveyor belt.
  • the chute preferably includes a chute roof extending in the direction of the conveyor belt and associated or integral therewith, forwardly and upwardly tapering chute sides. The discharge hood sides act as side scrapers.
  • the discharge hood is made of rubber.
  • a discharge flap made of flexible material is provided in front of a front end of the conveyor belt.
  • the discharge flap can be provided, for example, at a distance of 20 to 40 cm in front of the front end of the conveyor belt.
  • the discharge flap can be suspended, for example, on two spacer struts each fastened to the two longitudinal support profiles of the conveyor belt.
  • the discharge flap can be made of rubber, for example.
  • the hydraulic compensating cylinder is preferably provided at an angle between the front and rear hydraulic support cylinders.
  • the hydraulic compensating cylinder which can be longer than the front and rear hydraulic support cylinders, can be easily accommodated with the hydraulic hoses connected to it in the space between the front and rear hydraulic support cylinders that is present anyway.
  • the longitudinal support profiles, the drive roller and the deflection roller of the conveyor belt are made of aluminum.
  • the conveyor belt base frame can be made, for example, from aluminum press-compression elements.
  • the design of the conveyor belt elements from aluminum also results in a high elasticity of the conveyor belt with a high load-bearing capacity at the same time.
  • the drive roller and the deflection roller of the conveyor belt have a small diameter, for example a diameter of 8 to 15 cm.
  • the conveyor belt of the conveyor belt is made of PVC fabric belt.
  • the PVC fabric belt is flexible, can also be used to advantage with smaller diameters of the drive and deflection rollers of the conveyor belt and is highly resilient.
  • the conveyor belt has a hydraulic drive which is integrated into a drive hydraulic system of the carrier vehicle.
  • the conveyor belt drive can be connected via a hydraulic connection be supplied directly from the carrier vehicle with hydraulic fluid under the appropriate pressure.
  • the conveying speed of the conveyor belt can be regulated, for example, with a hydraulic valve that is electronically controlled from the driver's cab of the carrier vehicle.
  • a driver of the carrier vehicle can control the conveying speed of the conveyor belt from his seat during operation of the milling system, for example via an electronic speed controller. This also regulates the ejection distance and the ejection quantity and determines the ejection location.
  • figure 1 shows schematically an embodiment of a milling system 1 according to the invention in a side view from the left.
  • the milling system 1 is used to make a laying slot in a ground surface 10.
  • the milling system 1 has a carrier vehicle 2, a milling device 3 and a conveyor belt 7 provided thereon.
  • the carrier vehicle 2 is a caterpillar or tracked vehicle.
  • the carrier vehicle 2 has a driver's cab 21 in which a driver can sit and operate the carrier vehicle 2 as well as the milling device 3 and the conveyor belt 7 .
  • the carrier vehicle 2 has a hydraulic drive.
  • the milling device 3 is arranged at the front of the carrier vehicle 2 , ie in front of the carrier vehicle 2 in the forward travel direction V, and is connected to the carrier vehicle 2 .
  • the milling device 3 also moves in the forward direction V when the carrier vehicle 2 is driving in the forward direction V.
  • the milling device 3 has a milling wheel 4 .
  • cutting teeth 42 are provided which protrude in different directions. Some of these cutting teeth 42 are shown in figure 3 shown in which the milling system 1 from figure 1 is shown schematically in a side view from the right.
  • the milling wheel 4 rotates about its axis of rotation A in a direction of rotation D, i.e. in figure 1 in clockwise direction. Due to this rotation, the milling teeth 42 engage in the soil surface 10 and thereby mill the laying slot into the soil surface 10 .
  • the material removed in the process is referred to below as milled material.
  • the milled material is first taken along in the direction of rotation D by the milling teeth 42 .
  • the milling device 2 also has a milling wheel housing 6 around an upper and middle region of the milling wheel 4 .
  • an ejection window 61 is provided in a front portion of the cutting wheel housing 6, in a front portion of the cutting wheel housing 6, an ejection window 61 is provided.
  • the ejection window 61 is located above the conveyor belt 7.
  • a region of the milling wheel housing 6 located directly above a rear end 72 of the conveyor belt 7 is closed, so that the milled material cannot fall onto the conveyor belt 7 here.
  • Milled material ejected through the ejection window arranged further up onto the conveyor belt 7 can thus roll from top to bottom on the conveyor belt 7 and is nevertheless transported away easily in the further course.
  • an ejection hood 66 is attached above and to the side of the ejection window 61 .
  • a scraper is provided on the ejection window 61 under the ejection hood 66 .
  • At least one opening is provided in a rear area 65 of the cutting wheel housing 6 opposite the ejection window 61 . This creates a suction effect, as a result of which the milled material is conveyed away primarily in the direction of rotation D of the milling wheel 4 and only slightly or not at all falls to the side.
  • a hydraulic cylinder arrangement 8 is provided on one side of the cutting wheel housing 6 .
  • the hydraulic cylinder assembly 8 is individually in figure 2 shown schematically.
  • the hydraulic cylinder arrangement 8 has a front hydraulic support cylinder 81 , a hydraulic balancing cylinder 82 and a rear hydraulic support cylinder 83 .
  • the front hydraulic support cylinder 81 is provided in front of the axis of rotation A of the cutting wheel 4 in the forward travel direction V. In the working position of the milling machine 1, it is aligned vertically.
  • the front hydraulic support cylinder 81 has a piston 88 which can be extended downwards.
  • the hydraulic balance cylinder 82 is connected to an upper hydraulic section 811 of the front hydraulic support cylinder 81 via a hydraulic line 84 .
  • the rear hydraulic support cylinder 83 is provided in the forward travel direction V of the milling machine 1 behind the axis of rotation A of the milling wheel 4 .
  • the rear hydraulic support cylinder 83 has a piston 89 that can be extended upwards.
  • a hydraulic section 831 of the rear hydraulic support cylinder 83 arranged at the bottom is connected to the hydraulic compensating cylinder 82 via a hydraulic line 85 .
  • the hydraulic compensating cylinder 82 is aligned parallel to the front hydraulic support cylinder 81 and the rear hydraulic support cylinder 83 in the working position.
  • the hydraulic compensating cylinder 82 can also be provided in an obliquely aligned manner between the front and rear hydraulic support cylinders 81, 83.
  • Bleeders 86, 87 are provided on the front hydraulic support cylinder 81 and on the rear hydraulic support cylinder 83, respectively.
  • the milled material is thrown onto the conveyor belt 7 through the ejection window 61 and the ejection hood 66 by the rotation of the milling wheel 4 .
  • the conveyor belt 7 has a conveyor belt base frame with two parallel longitudinal support profiles 73, 74. At a front end 71 of the conveyor belt 7, between the longitudinal support profiles 73, 74, a drive roller 78 lying transversely to the longitudinal support profiles 73, 74 is provided.
  • the drive roller 78 is coupled to a hydraulic drive 5 .
  • the hydraulic drive is a hydraulic motor which is attached to the drive roller 78 with a bracket. As a result, the rotational speed of the drive roller 78 can be continuously adjusted without any loss of power. Due to the stepless speed control, the throw and the transport quantity on the conveyor belt 7 as can also be regulated on the truck or transport vehicle supplied by the conveyor belt 7.
  • the hydraulic drive 5 is integrated into a drive hydraulic system of the carrier vehicle 2 .
  • a transverse to the longitudinal support profiles 73, 74 lying deflection roller 79 is provided.
  • the conveyor belt base frame, the drive roller 78 and the deflection roller 79 are made of aluminum, but in other embodiments of the present invention they can also be made of another, preferably light-weight, material.
  • a conveyor belt 75 circulating around the drive roller 78 and the deflection roller 79 is provided between the longitudinal support profiles 73 , 74 in the conveying direction F of the conveyor belt 7 .
  • the conveyor belt 75 is made of PVC fabric tape, but it can also be made of rubber.
  • conveying lugs 76 On the conveying surface of the conveyor belt 75, on which the milled material rests and is transported away by means of the conveyor belt 7, conveying lugs 76, which are spaced apart from one another in the conveying direction F and directed upwards, are applied in the exemplary embodiment shown.
  • the conveyor lugs 76 are made of rubber.
  • the conveyor lugs 76 have a height of 40 mm in the example shown.
  • a cover, not shown here, is provided under the conveyor belt 7 .
  • the conveyor belt 7 has a length of 3.5 m.
  • the width of the conveyor belt 75 is 35 cm in the example shown.
  • the conveyor belt 7 is mounted on the milling device 3 at a distance of 3.0 to 3.5 cm from the milling wheel 4 .
  • the conveyor belt 7 is held on the cutting wheel housing 6 by means of a rotating/pivoting device 9 .
  • a rotating/pivoting device 9 can also the conveyor belt 7 from the figures 1 and 3 shown working position of the milling machine 1 in one of the figures 4 and 5 shown holding and transport position of the milling machine 1 and be spent in reverse.
  • the conveyor belt 7, which is firmly mounted on the milling device 3, can be pivoted by 180° using the rotating/pivoting device 9 and, when it is folded onto the side of the milling device 3, is supported by a transport support 62.
  • the conveyor belt 7 is attached to a front side of the milling device 3 when the milling system 1 is in operation.
  • the rotating and swiveling device 9 is relieved during operation of the milling system 1 and has no side load.
  • the rotating/pivoting device 9 is subject to only little wear and runs smoothly.
  • the rotating/pivoting device 9 has a swivel stand profile 93 mounted directly on the cutting wheel housing. When the milling system 1 is in the working position, the swivel stand profile 93 is erected vertically.
  • a support angle profile construction 94 which is guided around the rear side of the lower end 71 of the conveyor belt 7 and can be swiveled around the swivel post profile 93 .
  • the supporting angle profile construction 94 is U-shaped in the exemplary embodiment shown.
  • a holding angle profile construction 92 which can also be pivoted about the pivoting stand profile 93 .
  • a holding stand profile 91 is provided on the holding angle profile construction 92 and is aligned vertically upwards when the milling system is in the working position.
  • a tilt adjusting cylinder 90 which is connected to the conveyor belt 7 is mounted on the holding stand profile 91 .
  • the inclination adjustment cylinder 90 is connected to the two longitudinal support profiles 73, 74 of the conveyor belt 7 via a U-shaped fork 96.
  • the inclination adjustment cylinder 90 works hydraulically and can be moved in and out and can thus adjust the height and thus the inclination of the conveyor belt 7 .
  • An anti-kink device 95 is provided between the inclination adjustment cylinder 90 and the conveyor belt 7 .
  • the kink protection 95 forms a collision protection.
  • the anti-buckling device 95 has a groove 97 into which a retaining strut 98 emanating from the inclination adjustment cylinder 90 engages and which is screwed or riveted therein.
  • the conveyor belt 7 is held in a holding and transport position of the milling system 1 on a holding side of the milling wheel housing 6 .
  • the cutting wheel housing 6 has on its holding side the laterally protruding transport support 62 for the conveyor belt 7, on which the conveyor belt 7 is placed and on which it is preferably secured in the holding and transport position.
  • the conveyor belt 7 is secured in the working position as well as in the holding and transport position via folding locks.

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  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
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  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Road Repair (AREA)

Claims (15)

  1. Installation de fraisage (1) pour l'introduction d'une fente de pose dans une surface de sol (10), lequel présente un véhicule porteur (2) et un dispositif de fraisage (3), lequel est disposé du côté frontal du véhicule porteur (2), est connecté au véhicule porteur (2) et présente une roue de fraisage (4), au moins un entraînement hydraulique ainsi qu'un boîtier de roue de fraisage (6) comprenant une fenêtre d'éjection (61) prévue sur le côté frontal de la roue de fraisage (4), au niveau de laquelle une bande de transport (7) est prévue durant le fonctionnement de l'installation de fraisage (1), caractérisée en ce
    que, dans le boîtier de roue de fraisage (6), un cylindre de support hydraulique avant (81), orienté verticalement dans une position de travail de l'installation de fraisage (1) et pouvant être déployé vers le bas, est prévu devant l'axe de rotation (A) de la roue de fraisage (4) dans la direction d'avancée (V) de l'installation de fraisage (1), un cylindre de support hydraulique arrière (83), orienté verticalement dans une position de travail de l'installation de fraisage (1) et pouvant être déployé vers le haut, est prévu derrière l'axe de rotation (A) de la roue de fraisage (4) dans la direction d'avancée (V) de l'installation de fraisage (1), et un cylindre de compensation hydraulique (82) couplant les cylindres de support hydrauliques avant et arrière (81, 83) est prévu.
  2. Installation de fraisage selon la revendication 1, caractérisée en ce que la bande de transport (7) est montée pivotante sur le boîtier de roue de fraisage (6) et peut être pivotée d'une position de travail de l'installation de fraisage (1), dans laquelle une extrémité arrière (72) de la bande de transport (7) se trouve au niveau de la fenêtre d'éjection (61), à une position d'arrêt ou de transport de l'installation de fraisage (1), dans laquelle la bande de transport (7) est maintenue sur un côté de maintien du boîtier de roue de fraisage (6).
  3. Installation de fraisage selon la revendication 2, caractérisée en ce que, sur le côté de maintien du boîtier de roue de fraisage (6), un support de transport (62) pour la bande de transport (7) monté sur le boîtier de roue de fraisage (6) et orienté horizontalement fait saillie latéralement.
  4. Installation de fraisage selon au moins l'une des revendications précédentes, caractérisée en ce que, sur le boîtier de roue de fraisage (6), un dispositif de rotation ou de pivotement (9) est prévu, lequel peut pivoter horizontalement et est connecté à a bande de transport (7), et comprend un cylindre de réglage d'inclinaison (90) pour la bande de transport (7), lequel est fixé au dispositif et peut être déployé.
  5. Installation de fraisage selon la revendication 4, caractérisée en ce que le cylindre de réglage d'inclinaison (90) est connecté aux deux profilés portants longitudinaux (73, 74) de la bande de transport (7), est monté sur un profilé de support fixe (91) du dispositif de rotation ou de pivotement (9) orienté verticalement dans la position de travail de l'installation de fraisage (1) et peut pivoter sur celui-ci.
  6. Installation de fraisage selon la revendication 5, caractérisée en ce que le profilé de support fixe (91) est connecté à travers uns construction de profilé équerre (92) à un profilé de support pivotable (93) pouvant tourner autour de son axe longitudinal et orienté verticalement dans la position de travail de l'installation de fraisage (1).
  7. Installation de fraisage selon la revendication 6, caractérisée en ce que, sur le profilé de support pivotable (93), une construction de profilé équerre (94) ou un étrier de support, passant par la face arrière d'une extrémité inférieure (71) de la bande de transport (7) et pouvant pivoter autour du profilé de support pivotable (93), est prévu(e).
  8. Installation de fraisage selon l'une quelconque des revendications 5 à 7, caractérisée en ce qu'un blocage d'articulation (95) est prévu entre le cylindre de réglage d'inclinaison (90) et la bande de transport (7).
  9. Installation de fraisage selon au moins l'une des revendications précédentes, caractérisée en ce que, à l'intérieur du boîtier de roue de fraisage (6), une cale ou dent d'éjection (63) orientée dans la direction d'avancée (V) de l'installation de fraisage (1) est prévue devant et au-dessus de la roue de fraisage (4), la face inférieure (64) de laquelle forme un angle aigu (α) par rapport à la surface de sol (10).
  10. Installation de fraisage selon au moins l'une des revendications précédentes, caractérisée en ce que des crampons de transport (76) en matériau flexible, dressés à la verticale et s'étendant perpendiculairement à la direction de transport (F) de la bande de transport (7), sont prévus sur une courroie de transport (75) de la bande de transport (7).
  11. Installation de fraisage selon au moins l'une des revendications précédentes, caractérisée en ce qu'au moins une ouverture est prévue dans une zone arrière (65) du boîtier de roue de fraisage (6) située à l'opposé de la fenêtre d'éjection (61).
  12. Installation de fraisage selon au moins l'une des revendications précédentes, caractérisée en ce qu'une hotte d'éjection (66) ouverte au-dessus de la bande de transport (7) est placée sur la fenêtre d'éjection (61).
  13. Installation de fraisage selon au moins l'une des revendications précédentes, caractérisée en ce qu'un clapet de chute en matériau flexible est prévu devant une extrémité avant (71) de la bande de transport (7).
  14. Installation de fraisage selon au moins l'une des revendications précédentes, caractérisée en ce que le cylindre de compensation hydraulique (82) est prévu orienté de manière inclinée entre les cylindres de support hydrauliques avant et arrière (81, 83) dans la position de travail de l'installation de fraisage (1).
  15. Installation de fraisage selon au moins l'une des revendications précédentes, caractérisée en ce que le système de fraisage (1) présente une soupape hydraulique intégrée dans l'alimentation hydraulique d'un cylindre de réglage d'inclinaison (90) pour la bande de transport (7) et d'un entraînement hydraulique de la roue de fraisage (4), pouvant être commandée et commutée à partir du véhicule porteur (2).
EP20183532.9A 2019-07-08 2020-07-01 Installation de fraisage Active EP3767037B1 (fr)

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DE102019118434.7A DE102019118434B4 (de) 2019-07-08 2019-07-08 Fräsanlage

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CN114000398B (zh) * 2021-11-13 2022-10-28 武汉市市政路桥有限公司 一种轻量化沥青路面道路修补装置及修补方法

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FR2522038A1 (fr) * 1982-02-19 1983-08-26 Hydro Armor Sarl Machine a creuser ou a curer des fosses
US5575538A (en) * 1995-06-01 1996-11-19 Astec Industries, Inc. Rock saw with centerline conveyor assembly and method of digging a narrow trench
US6729050B2 (en) * 2001-08-31 2004-05-04 Vermeer Manufacturing Company Control of excavation apparatus
US20120030973A1 (en) * 2010-08-05 2012-02-09 Doug Laing Earth mover which continuously excavates a trench and simultaneously clears the excavated trench of spoils
WO2016102646A1 (fr) * 2014-12-24 2016-06-30 Simex Engineering S.R.L. Équipement d'excavation pour l'excavation de surfaces, en particulier de surfaces solides, et engin de chantier équipé dudit équipement d'excavation
US20170101746A1 (en) * 2015-10-09 2017-04-13 The Charles Machine Works, Inc. Trenching Assembly

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DE102019118434A1 (de) 2021-01-14
EP3767037A1 (fr) 2021-01-20

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