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EP1073798A1 - Dispositif de traitement de chaussees - Google Patents

Dispositif de traitement de chaussees

Info

Publication number
EP1073798A1
EP1073798A1 EP99910299A EP99910299A EP1073798A1 EP 1073798 A1 EP1073798 A1 EP 1073798A1 EP 99910299 A EP99910299 A EP 99910299A EP 99910299 A EP99910299 A EP 99910299A EP 1073798 A1 EP1073798 A1 EP 1073798A1
Authority
EP
European Patent Office
Prior art keywords
storage container
discharge
metering
grit
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.)
Granted
Application number
EP99910299A
Other languages
German (de)
English (en)
Other versions
EP1073798B1 (fr
Inventor
Thomas Mannebach
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.)
Wirtgen GmbH
Original Assignee
Wirtgen 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7865780&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1073798(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Wirtgen GmbH filed Critical Wirtgen GmbH
Publication of EP1073798A1 publication Critical patent/EP1073798A1/fr
Application granted granted Critical
Publication of EP1073798B1 publication Critical patent/EP1073798B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • E01C21/00—Apparatus or processes for surface soil stabilisation for road building or like purposes, e.g. mixing local aggregate with binder
    • 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
    • E01C19/20—Apparatus for distributing, e.g. spreading, granular or pulverulent materials, e.g. sand, gravel, salt, dry binders
    • E01C19/201—Apparatus for distributing, e.g. spreading, granular or pulverulent materials, e.g. sand, gravel, salt, dry binders with driven loosening, discharging or spreading parts, e.g. power-driven, drive derived from road-wheels
    • E01C19/202—Apparatus for distributing, e.g. spreading, granular or pulverulent materials, e.g. sand, gravel, salt, dry binders with driven loosening, discharging or spreading parts, e.g. power-driven, drive derived from road-wheels solely rotating, e.g. discharging and spreading drums
    • E01C19/2025—Throwers with substantially horizontal axis, e.g. drums or brushes rotated to fling the material at the surface
    • 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
    • E01C19/20—Apparatus for distributing, e.g. spreading, granular or pulverulent materials, e.g. sand, gravel, salt, dry binders
    • E01C19/201—Apparatus for distributing, e.g. spreading, granular or pulverulent materials, e.g. sand, gravel, salt, dry binders with driven loosening, discharging or spreading parts, e.g. power-driven, drive derived from road-wheels
    • E01C19/2035—Apparatus for distributing, e.g. spreading, granular or pulverulent materials, e.g. sand, gravel, salt, dry binders with driven loosening, discharging or spreading parts, e.g. power-driven, drive derived from road-wheels both rotating parts and reciprocating, oscillating, jolting or vibrating parts
    • 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
    • E01C19/20—Apparatus for distributing, e.g. spreading, granular or pulverulent materials, e.g. sand, gravel, salt, dry binders
    • E01C2019/2055—Details not otherwise provided for
    • E01C2019/2065—Sensing the quantity of the material actually being distributed

Definitions

  • the invention relates to a self-propelled device for processing lanes according to the preamble of claim 1.
  • Road construction machines of this type have a storage container for spreading material fastened to the machine frame, the discharge of which can be coupled to a metering and discharge device.
  • spreading material namely, for example, granules, grit, powdered spreading material, binder, lime or cement can be distributed on the road.
  • Discharge devices for grit are also used in construction machines for material processing (recyclers), namely, for example. for stabilizing insufficiently stable soils, for pulverizing hard asphalt surfaces and recycling of bound or unbound road surfaces.
  • recyclers namely, for example. for stabilizing insufficiently stable soils, for pulverizing hard asphalt surfaces and recycling of bound or unbound road surfaces.
  • Known road construction machines (WO 96/24725) usually have a work roll rotating in a work chamber, which is generally arranged to be adjustable in height and inclination in order to adapt to the surface to be worked.
  • Such machines are often used for soil stabilization and / or mortaring, i.e. used to increase the load-bearing capacity of poorly loadable floors or to create a hydraulically bound base layer.
  • the process is based on mixing the soil with hydraulic binders (lime, cement (suspension), emulsion, etc.), which binds the moisture. Then the surface can be leveled using a grader and compacted using a roller.
  • the milling of the soil and simultaneous mixing with the binder is usually carried out with a so-called soil stabilizer, which has a milling / mixing rotor for this.
  • the binder is applied to the ground beforehand using a separate spreading vehicle.
  • the spreading vehicles are usually built on the base of a three-axle truck and are therefore not very suitable for off-road use.
  • the time between the sprinkling and the milling in is relatively long, which favors a possible blowing away of the binder and a strong development of dust.
  • Cement can also be added as a suspension (dissolved in water) for dust-free addition.
  • this method can only be used if additional water is to be introduced into the soil. This method is not suitable for soils that already have too high a water content.
  • the suspension mixer must be pushed or pulled in front of or behind the machine, which in turn is only possible in relatively flat terrain.
  • the invention has for its object to develop a device of the type mentioned in such a way that the distribution of spreading material is made possible in a selectable spreading width.
  • the invention advantageously provides that the storage container has a discharge extending transversely to the direction of travel of the machine frame, that the metering and discharge device is arranged in or below the discharge, and that a spreading width adjustment device is arranged between the storage container and the metering and discharge device is. - 4 -
  • the arrangement of a spreading width adjustment device between the storage container and the metering and discharge device has the advantage that the spreading width or the position of the spreading track can be variably adjusted within the entire working width of the device and can be set differently as required during the working process.
  • All the blocking elements of the spreading width adjustment device are arranged inside the discharge both in the open position and in the closed position and are sealed off from the outside. In this way, the susceptibility to failure of the spreading width adjustment device is reduced by preventing the blocking elements from becoming dirty and sticking together.
  • the spreading width adjustment device preferably consists of a plurality of separately controllable locking segments arranged side by side in the width direction. In this way, the spreading width adjustment device can be operated in segments.
  • the locking segments consist of at least one pivotable flap.
  • the pivotable flaps can partially close the discharge of the storage container in the direction of the working width of the device, the flaps being pivoted into a vertical position in the open position and into an almost horizontal position in the closed position. When the flaps are pivoted about an "axis parallel to the working direction, the free ends of the flaps can partially overlap.
  • a plurality of flaps are coupled to one another and can be pivoted together.
  • the flaps which can be pivoted together form a locking segment which can be controlled, for example, by means of a single adjusting device.
  • the dosage is regulated purely volumetrically or additionally taking into account the mass actually discharged.
  • the purely volumetric metering regulates the speed of the cellular wheel lock as a function of the current driving speed.
  • One revolution of the rotary valve corresponds to a precisely defined, unchangeable volume flow in liters / revolution.
  • the storage container for the spreading material can be hung on load cells. The speed is then regulated on the basis of the mass of the spreading material actually discharged in kg.
  • the storage container can be filled pneumatically in the case of powdered grit, the grit e.g. Binder is blown into the container.
  • the forcibly generated exhaust air is cleaned in an exhaust air filter before it is released into the environment.
  • a complete metering and application device for powdered binders with a storage container and a spreading width adjustment device is integrated.
  • the binding agent can also be applied wherever a soil stabilizer can work.
  • the storage container and discharge device are arranged in the working direction directly in front of the milling drum. The time the binder remains on the surface of the soil before it is gripped by the milling drum is thus limited to a few seconds.
  • the metering and application unit is sealed off from the floor with flexible walls.
  • Fig. 1 is a schematic side view of a device according to the invention. 2 shows a cross section through the discharge of the storage container with a spreading width adjustment device and a metering and discharge device,
  • FIG. 4 shows a side view of the metering and discharge device combined with a spreading width adjustment device
  • Fig. 5 is a plan view of the spreading width adjustment device.
  • FIG. 1 shows a recycler for processing lanes with a machine frame 1 carried by two running gears and a driving station consisting of a driver's cab 23.
  • the driver's cabin 23 can be moved on the machine frame 1 transversely to the direction of travel.
  • the bogies have two jointly or optionally individually steerable bogie axles 4 at the front and rear ends of the machine frame 1, in which each wheel 6 is provided with its own hydraulic drive in the form of a hydraulic motor and, if necessary. can be controlled separately.
  • Each wheel 6 is provided with a height adjustment device 25, so that the height of the machine frame 1 and possibly its inclination can be adjusted exactly to the working or transport height.
  • the entire machine weight is thus concentrated on the area between the chassis axles 4, a hood 7 being fixed in place beneath the driver's cab to the machine center, which serves as a mixing area of a working area of a rotating working area that is height-adjustable relative to the machine frame 1.
  • the recycler has a storage container 14 for the spreading material 5, for example binding agent, attached to the machine frame 1, and a metering and discharge device 10 provided with a spreading width adjustment device 30, which is designed in the form of a cellular wheel sluice 11.
  • the storage container 14 extends between the driver's cabin 23 and the hood 7 of the work roll 8 and is fastened to the machine frame 1.
  • Powdered grit 5 can be filled pneumatically into the storage container 14.
  • the storage container 14 is provided with an exhaust air filter 26, so that when the storage container 14 is filled pneumatically, no dust can escape to the outside.
  • the walls 20 of the storage container 14 can run in a funnel shape.
  • the cellular wheel lock 11 is located in a discharge 15, with which the spreading material 5 can be dispensed in a metered manner.
  • the spreading material 5 or binding agent is discharged depending on the rate of advance of the machine with the aid of a computer control.
  • the rotary valve 11 is connected to a hydraulic motor 12 via a gear 16.
  • Below the rotary valve 11 there are flexible sealing walls 18, for example made of rubber mats, which seal the discharge 15, which preferably extends over the entire width of the machine, against the floor 2.
  • the sealing walls 18 are open towards the hood 7, so that the spreading material / binder 5 dispensed in a metered manner from the discharge 15 is deposited flat on the floor 2 within the body enclosed by the sealing walls 18.
  • the spreading material / binder 5 is then run over by the work roll 8 immediately after distribution and mixed with the milled bottom 2. This way no cement or - 9 -
  • Level sensors 24 on the walls 20 of the storage container 14 give signals to the control, wherein these signals can also be used to control vibration vibrators 22, which are also arranged on the walls 20 of the storage container 14.
  • the control of the cellular wheel sluice 11 can, in addition to the control as a function of the speed of advance, also experience a fine control in such a way that a weighing device (not shown in detail) detects the amount of spreading material that has been discharged and corrects the speed of the cellular wheel sluice 11 accordingly.
  • the weighing device can consist, for example, of load cells arranged below the storage container 14.
  • the previous description referred to a recycler with an integrated storage container 14 for spreading material 5 with a spreading width adjustment device 30 and a metering and application device 10. It is understood that other road construction machines with a storage container 14, a spreading width setting device 30 and a metering and application device 10 can be provided without a work roll 8. The following detailed description of the spreading width adjustment device therefore also relates to the application of the spreading width adjustment in road construction machines that are not recycling machines.
  • the spreading width adjustment device 30 shown to 5 is preferably in between the metering and discharge device 10 and the storage container 14 - lo ⁇
  • the metering and discharge device 10 consisting of a cellular wheel sluice 11 is arranged at the lower end.
  • the cellular wheel sluice 11 is arranged between two mutually parallel vertical walls 17 of the discharge 15 and extends preferably over the entire working width of the machine frame 1.
  • the spreading width adjustment device 30 is also arranged between the vertical walls 17.
  • the spreading width adjustment device 30, as can best be seen from FIG. 4, is formed from a plurality of blocking segments 32. As shown in Figs. 4 and 5, the blocking segments 32 are not arranged over the entire width of the cellular wheel lock 11. An area without locking segments can be provided in the middle of the cellular wheel sluice 11.
  • the width of the area that cannot be blocked can be, for example, 500 mm. Both sides of the non-lockable area are in the exemplary embodiments of FIGS. 4 and 5, four locking segments 32 are provided, each locking segment 32 being able to be adjusted with the aid of a piston-cylinder unit 35, 36.
  • the width of a blocking segment 32 can be, for example, 250 mm.
  • a valve control device 44 enables the individual or combined activation of the blocking segments 32 via the piston-cylinder units 35, 36.
  • Fig. 3 shows two juxtaposed locking segments 32 in different pivot positions.
  • Swivel lever 38 pivoted, with the help of which three flaps 34 can be pivoted simultaneously and synchronously by approximately 90 °.
  • the leg axes of the flaps 34 are parallel to the working direction of the machine.
  • the division of a locking segment 32 into a plurality of pivotable flaps 34 has the advantage of requiring only a small overall height and depth, so that the spreading width adjustment device 30 can be combined with a metering and discharge device 10 without difficulty, without the length and / or width of the machine to enlarge.
  • the flaps can partially overlap one another in the almost horizontal closed position.
  • the axle shaft 50 which is connected to the flap 34 in a rotationally fixed manner, can be arranged asymmetrically relative to the flap 34, i.e. that the flap 34 protrudes unevenly on both sides of the axle shaft 50.
  • the two-armed pivot lever 38 actuated by the piston 35 first pivots the central flap 34 of a locking segment 32 and furthermore displaces a coupling member 40 which is articulated on the free arm of the two-armed pivot lever 38.
  • the coupling member 40 is coupled at its ends to two further pivot levers 42, which serve to pivot the outer flaps 34 via their axle shafts 50.
  • the coupling member can also be connected to more than two pivot levers 42, for example in order to pivot five flaps 34 simultaneously and parallel to each locking segment 32.
  • the coupling member 40 consequently enables the synchronous and parallel pivoting of all the flaps 34 of a blocking segment. - 12 -
  • the adjacent blocking segment 32 is shown in the open position, in which the flaps 34 stand vertically and thereby release the passage cross section of the discharge 15.
  • the figures 4 and 5 show a total of eight locking segments 32, of which only the locking segment 32 located on the left edge is pivoted into the locking position.
  • the flaps 34 extend over the entire opening cross section of the discharge 15 between the walls 17.
  • the discharge 15 is connected to the storage container 14 via the flange 19.
  • the pivot axes of the flaps 34 defined by the axle shafts 50 and the axle stubs 48 run parallel to the working direction of the machine.
  • the axle shafts 50 and the stub axles 48 are held in bearings 46 on the outside of the walls 17, the axle shafts 50 being guided outwards through the wall 17 and being connected in a rotationally fixed manner to the swivel levers 38.
  • the piston-cylinder units 35, 36 are also attached to the outside of the discharge 15.
  • a fill level sensor 24 is arranged in the region of the funnel-shaped section of the discharge 15.
  • the already described flexible wall 18 is flanged, which can for example consist of a rubber material and seal the discharge in the working direction and on the side.

Landscapes

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

Abstract

L'invention concerne un dispositif de traitement de chaussées, comportant un châssis automoteur qui supporte un bâti (1), un moteur d'entraînement pour entraîner des éléments de travail (8) et faire rouler ledit dispositif, ainsi qu'un réservoir (14) fixé sur le bâti (1), destiné à une matière à épandre, et une unité de dosage et de distribution (10) raccordée au réservoir (14) et destinée à la matière à épandre. Selon l'invention, le réservoir (14) présente un élément de décharge (15) s'étendant sur la largeur du bâti (1), l'unité de dosage et de distribution (10) est placée dans ou sous l'élément de décharge (15), et une unité de réglage (30) de la largeur d'épandage est placée entre le réservoir (14) et l'unité de dosage et de distribution (10).
EP99910299A 1998-04-24 1999-02-27 Dispositif de traitement de chaussees Expired - Lifetime EP1073798B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19818542A DE19818542A1 (de) 1998-04-24 1998-04-24 Vorrichtung zum Bearbeiten von Fahrbahnen
DE19818542 1998-04-24
PCT/EP1999/001287 WO1999055969A1 (fr) 1998-04-24 1999-02-27 Dispositif de traitement de chaussees

Publications (2)

Publication Number Publication Date
EP1073798A1 true EP1073798A1 (fr) 2001-02-07
EP1073798B1 EP1073798B1 (fr) 2003-02-19

Family

ID=7865780

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99910299A Expired - Lifetime EP1073798B1 (fr) 1998-04-24 1999-02-27 Dispositif de traitement de chaussees

Country Status (3)

Country Link
EP (1) EP1073798B1 (fr)
DE (2) DE19818542A1 (fr)
WO (1) WO1999055969A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006004946A1 (de) * 2005-12-08 2007-06-21 BLüCHER GMBH Funktionelles Bekleidungsstück, insbesondere ABC-Schutzbekleidung, mit integrierter Meßeinrichtung

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20114300U1 (de) * 2001-08-31 2001-10-25 Hermann Kirchner GmbH & Co KG, 36251 Bad Hersfeld Einstreumischfahrzeug
ATE446933T1 (de) * 2005-08-01 2009-11-15 Wolfgang Kindler Pulverdosieranlage
DE102012221654A1 (de) 2012-11-27 2014-05-28 Wirtgen Gmbh Verfahren zum Behandeln von Schichten, sowie eine Baumaschine, insbesondere einen Bodenstabilisierer oder Recycler
DE102012024769A1 (de) 2012-12-18 2014-06-18 Bomag Gmbh Baumaschine zum Einmischen wenigstens eines schüttgutartigen Zuschlagstoffs in den Bodenuntergrund, insbesondere Bodenstabilisierer und/oder Recycler
CN108360335B (zh) * 2018-02-28 2020-03-06 中国科学院寒区旱区环境与工程研究所 砾石铺设车

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB937356A (en) * 1961-04-29 1963-09-18 Nat Res Dev Improvements in machines for spreading granular or pulverulent material
DE3543902C1 (en) * 1985-12-12 1987-05-27 Kloeckner Becorit Gmbh Device for breaking up rough and lumpy roadway pieces
DE3912848A1 (de) * 1989-04-19 1990-10-25 Kirchhoff Strassenbau Gmbh F Streufahrzeug fuer koernige und/oder pulvrige medien
FR2663655B1 (fr) * 1990-06-20 1992-10-09 Rabaud Sa Procede de controle d'epandage de liant et moyens pour la mise en óoeuvre du procede.
DE19504495A1 (de) 1995-02-12 1996-08-22 Wirtgen Gmbh Maschine zur Erneuerung von Fahrbahnen
FR2741645B1 (fr) * 1995-11-28 1998-01-02 Medinger Jean Claude Epandeur pour traitement de terrain

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9955969A1 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006004946A1 (de) * 2005-12-08 2007-06-21 BLüCHER GMBH Funktionelles Bekleidungsstück, insbesondere ABC-Schutzbekleidung, mit integrierter Meßeinrichtung

Also Published As

Publication number Publication date
DE59904336D1 (de) 2003-03-27
EP1073798B1 (fr) 2003-02-19
DE19818542A1 (de) 1999-11-04
WO1999055969A1 (fr) 1999-11-04

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