EP1891272B1 - Vehicule de transfert de materiaux a des fins d'utilisation pour le revetement en asphalte - Google Patents

Vehicule de transfert de materiaux a des fins d'utilisation pour le revetement en asphalte Download PDF

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Publication number
EP1891272B1
EP1891272B1 EP06838985A EP06838985A EP1891272B1 EP 1891272 B1 EP1891272 B1 EP 1891272B1 EP 06838985 A EP06838985 A EP 06838985A EP 06838985 A EP06838985 A EP 06838985A EP 1891272 B1 EP1891272 B1 EP 1891272B1
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EP
European Patent Office
Prior art keywords
auger blade
material transfer
transfer vehicle
outside sidewall
paver
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.)
Not-in-force
Application number
EP06838985A
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German (de)
English (en)
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EP1891272A1 (fr
Inventor
John E. Hoffmann
David Swearingen
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Roadtec Inc
Original Assignee
Roadtec Inc
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Filing date
Publication date
Application filed by Roadtec Inc filed Critical Roadtec Inc
Priority claimed from PCT/US2006/046346 external-priority patent/WO2007117287A1/fr
Publication of EP1891272A1 publication Critical patent/EP1891272A1/fr
Application granted granted Critical
Publication of EP1891272B1 publication Critical patent/EP1891272B1/fr
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    • 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
    • E01C19/48—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 laying-down the materials and consolidating them, or finishing the surface, e.g. slip forms therefor, forming kerbs or gutters in a continuous operation in situ
    • 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
    • E01C2301/00—Machine characteristics, parts or accessories not otherwise provided for
    • E01C2301/02—Feeding devices for pavers
    • E01C2301/04—Independent shuttles

Definitions

  • the present invention relates generally to a self-propelled vehicle that is adapted for transferring asphalt from a supply truck to an asphalt paving machine.
  • Paving of roadways with asphalt is generally carried out by an asphalt paving machine and a number of supply trucks which transport the asphalt from an asphalt production plant to the paving machine.
  • the paving machine generally is self-propelled and driven by a wheeled or tracked drive system.
  • a hopper is located at the front end of the machine to receive asphalt from a truck, and a floating screed is located at the rear end of the machine to form the asphalt mat.
  • a conveyor system typically comprised of slat conveyors and screw augers delivers the asphalt from the hopper to the road base just ahead of the screed.
  • a typical asphalt paving machine has a hopper with a capacity of 5-15 tons, whereas a typical dump-type delivery truck has a capacity of about 20 tons.
  • the front of the paving machine is usually provided with rollers which are adapted to engage the rear tires of a delivery truck. This arrangement enables asphalt to be transferred from the truck to the asphalt paving machine by positioning the delivery truck in front of the paving machine and raising the dump bed of the truck to dump the asphalt into the hopper as the paving machine pushes the truck along in front of it. Because the delivery truck usually carries more asphalt than the hopper can receive at one time, the paving machine may push the delivery truck along for several minutes while its conveyor system transports the asphalt out of the hopper to the roadway in front of the screed.
  • the material transfer vehicle can rapidly shuttle between delivery trucks at a pick-up point and a paving machine that is laying an asphalt mat so that there is less likelihood that the paving machine will have to stop paving because of a lack of asphalt.
  • the improved vehicle of the invention provides a material transfer vehicle which does not require three conveyors as does the prior art vehicle. Consequently, the improved vehicle of the invention is somewhat less complex and may have a significantly reduced weight.
  • An advantage of a preferred embodiment of the invention is that it provides a four-wheeled material transfer vehicle in which both front and rear wheels are steerable for improved maneuverability.
  • Another advantage of a preferred embodiment of the invention is that it provides such a vehicle with improved asphalt remixing capability in the surge bin.
  • aggregate materials refers to crushed stone and other particulate materials that are used in the production of asphalt, such as, for example, crushed limestone and other types of crushed stone, crushed or comminuted recycled asphalt paving materials, crushed, shredded or comminuted shingles and other asphalt binder-containing products, shredded or comminuted mineral and cellulosic fibers, gravel, sand, lime and other particulate additives.
  • asphalt binder refers to a dark brown to black solid or semi-solid cementious material which gradually liquefies when heated, in which the predominating constituents are bitumens, all of which occur in the solid or semi-solid form in nature or are obtained by refining petroleum, which is used in the production of asphalt.
  • asphalt refers to a bituminous paving mixture that is comprised of asphalt binder and any of various aggregate materials, and which is used for paving purposes.
  • asphalt paving machine As used herein, the terms “ asphalt paving machine”, “paving machine”, “paver” and similar terms refer to a finishing machine for applying asphalt to form an asphalt mat on a roadway, parking lot or similar surface.
  • An asphalt paying machine is typically a self-propelled vehicle having a hopper at one end for receiving asphalt and a screed at the other end for forming an asphalt mat.
  • asphalt mat refers to a layer of asphalt such as is applied by an asphalt paving machine to produce a roadway, parking lot or similar surface.
  • delivery truck As used herein, the terms “delivery truck”, “truck” and similar terms refer to a vehicle for transporting asphalt along a roadway, which vehicle is adapted to transfer asphalt to a hopper that is mounted on a material transfer vehicle or a paving machine.
  • forward when used in connection with a material transfer vehicle, a component of such vehicle or a position on such a vehicle, refer to the end of the machine nearest the truck-receiving hopper.
  • backward when used in connection with such a vehicle, component or position, refer to the end of the vehicle opposite the front end.
  • rotary actuator and similar terms refers to an electric, hydraulic or electro-hydraulic device that generates force that is directed along an arc.
  • linear actuator refers to an electric, hydraulic or electro-hydraulic device that generates force that is directed in a straight line.
  • a linear actuator is a hydraulic cylinder which includes a cylinder, a piston within the cylinder, and a rod attached to the piston. By increasing the pressure within the cylinder on one side of the piston (over that on the opposite side of the piston), the rod will extend from the cylinder or retract into the cylinder.
  • actuator refers to a rotary actuator and/or a linear actuator.
  • the invention comprises a material transfer vehicle for transporting asphalt from a delivery truck to a paving machine.
  • This vehicle includes a frame and a vehicle drive system which is operatively attached to the frame and adapted to drive the vehicle.
  • a turret is rotatably mounted on the frame, and a surge bin, which is adapted to contain a quantity of asphalt, is mounted on the turret
  • the surge bin has a front side and a rear side with a discharge opening in the rear side.
  • the vehicle also includes a truck-unloading conveyor that is mounted on the frame.
  • the truck-unloading conveyor has an inlet end and an outlet end which is adjacent to the front side of the surge bin.
  • the truck-unloading conveyor is adapted to move asphalt from the inlet end to the discharge end.
  • the vehicle also includes a paver-loading conveyor that is mounted on the turret.
  • the paver-loading conveyor has an inlet end extending into the discharge opening on the rear side of the surge bin, and an outlet end, and it is adapted to move asphalt from the inlet end to the outlet end.
  • the material transfer vehicle has a frame supported by at least four steerable wheels.
  • three steering modes are provided: (1) front wheel steering; (2) coordinated front and rear wheel steering for obtaining a shorter turning radius; and (3) coordinated front and rear wheel steering for obtaining sideways, or "crab" motion.
  • the preferred embodiment also includes a forward-mounted operator station and a rear-view camera mounted on the underside of the paver-loading conveyor.
  • the preferred embodiment also includes a transverse mixing auger in the surge bin having auger blades with varied pitch and/or diameter.
  • the preferred embodiment of the invention also includes a paver-loading conveyor that is adapted pivot between a lowered position and a raised position that is about 25° above the horizontal.
  • FIG. 1 shows self-propelled material transfer vehicle 10 which is described in U.S. Patents No. 4,818,139 , No. 5,015,120 and No. 5,035,534 in association with asphalt paving machine 12 and conventional delivery truck 16.
  • Paving machine 12 includes hopper 14 which has been expanded by providing front wall 14a and side walls 14b of increased height.
  • Paving machine 12 also includes vibratory screed 15 and conventional conveyor system comprising longitudinally disposed conveyors 19a and transversely disposed screw auger 19b for delivering the asphalt from hopper 14 to a position just in advance of screed 15 where it is discharged onto the surface to be paved.
  • Conventional delivery truck 16 includes a pivotally mounted bed 17 with a tailgate 18, and is adapted to deliver asphalt from a remote source to material transport vehicle 10.
  • Vehicle 10 includes frame 20 that is supported on the roadway surface by first wheel set 21 and second wheel set 22. Each of the wheel sets is driven by a hydraulic motor (not shown) that is supplied with fluid under pressure by one or more hydraulic pumps (also not shown). An engine (also not shown) provides the motive force for the hydraulic pumps.
  • Vehicle 10 includes surge bin 23 that is mounted on frame 20 and includes transverse auger 24 that is employed to mix the asphalt in the surge bin in order to minimize segregation or separation of the aggregate portion of the asphalt by size.
  • Vehicle 10 also includes truck-receiving hopper 25 and truck-unloading conveyor 26 for receiving asphalt from delivery truck 16 and conveying it to the surge bin.
  • Hopper 25 is generally of the same width as truck bed 17 and is adjustable in length so that the contents of truck 16 can be easily and quickly emptied into the hopper.
  • Conveyor 26 is of the drag-slat type and is adapted to quickly convey an entire truckload of asphalt into surge bin 23.
  • Drag-slat type discharge conveyor 28 is located along the sloped side of surge bin 23 opposite truck-unloading conveyor 26 and is adapted to convey asphalt out of the surge bin to chute 30 which is associated with paver-loading conveyor 32. Asphalt conveyed out of the surge bin by conveyor 28 falls through chute 30 and onto paver-loading conveyor 32.
  • Paver-loading conveyor 32 is of the belt-type and is mounted for vertical pivotal movement about pivot 34 as raised and lowered by hydraulic lift cylinder 36. Conveyor 32 is also adapted for side-to-side movement about a vertical axis (not shown) that extends through hopper 30 by operation of another hydraulic cylinder (also not shown). Vehicle 10 is operated by an operator located at operator station 38.
  • vehicle 40 includes frame 42 that is supported on the roadway surface by first wheel set 44 and second wheel set 46. Each wheel of a wheel set is connected to an axle that is driven by a hydraulic motor (not shown) which is supplied with fluid under pressure by one or more hydraulic pumps (also not shown). An engine (located behind grate 48) provides the motive force for the hydraulic pumps.
  • Vehicle 40 includes surge bin 50 that is mounted on the frame and includes transverse auger 52 that is employed to mix the asphalt in the surge bin in order to minimize segregation or separation of the aggregate portion of the asphalt by size.
  • Vehicle 40 also includes truck-receiving hopper 54 and truck-unloading conveyor 56 for receiving asphalt from a delivery truck such as truck 16 and conveying it to the surge bin.
  • Hopper 54 is generally of the same width as truck bed 17 and is adjustable in length so that the contents of truck 16 can be easily and quickly emptied into the hopper.
  • Conveyor 56 is of the drag-slat type and is adapted to quickly convey an entire truckload of asphalt into surge bin 50.
  • Another drag-slat type discharge conveyor (not shown, but similar to conveyor 28 of vehicle 10) is located along the sloped side of surge bin 50 opposite truck-unloading conveyor 56 and is adapted to convey asphalt out of the surge bin to chute 58 which is associated with paver-loading conveyor 60.
  • Paver-loading conveyor 60 is of the belt-type and is mounted for vertical pivotal movement as raised and lowered by hydraulic lift cylinder 62. Conveyor 60 is also adapted for side-to-side movement about a vertical axis by operation of another hydraulic cylinder (also not shown). Vehicle 40 is operated by an operator located at operator station 64.
  • FIG. 4-18 and 20-22 A first embodiment of the invention is illustrated in Figures 4-18 and 20-22 .
  • self-propelled material transport vehicle 100 includes frame 102 having a front end at 104 and a rear end at 106.
  • Vehicle 100 includes a vehicle drive system which is operatively attached to frame 102 and adapted to drive the vehicle along a roadway surface.
  • the vehicle drive system includes a front wheel set comprised of left front wheel 108 and right front wheel 109 and a rear wheel set comprised of left rear wheel 110 and right rear wheel 111.
  • each wheel set is comprised of a pair of wheels with pneumatic tires; however, other wheel sets such as are known to those having ordinary skill in the art to which the invention relates may alternatively be used.
  • Each wheel of a wheel set is connected to an axle that is driven by a hydraulic motor (not shown) which is supplied with fluid under pressure by one or more hydraulic pumps (also not shown).
  • This hydrostatic drive system is similar to the hydrostatic drive systems of vehicles 10 and 40.
  • An engine located in compartment 112 provides the motive force for the hydraulic pumps.
  • three steering modes are provided: (a) front wheel steering where front wheels 108 and 109 are steerable in the manner of an automobile and rear wheels 110 and 111 are set to roll in a line that is parallel to longitudinal frame axis 114 of the vehicle; (b) coordinated front and rear wheel steering to pivot the vehicle such as for example, by turning the front wheels to the right and simultaneously turning the rear wheels to the left to reduce the turning radius of the vehicle; and (c) coordinated front and rear wheel steering to move the vehicle in a non-pivoting manner, i.e. "crabwise", by turning both the front and the rear wheels in the same direction to move the vehicle along a line that is not parallel to frame axis 114.
  • the hydrostatic drive system of vehicle 100 permit differential fluid flow between the front and rear drive subsystems, and that it can be set or "locked" to provide equal flow to the front and rear drive subsystems to improve vehicle stability on loose or muddy terrain.
  • a vehicle drive system may include a valve arrangement in the hydraulic fluid lines to the hydraulic motors to permit flow of hydraulic fluid at the same rate to the front and rear hydraulic motors or to permit differential flow of hydraulic fluid (i.e. at a different rate) to the front and rear hydraulic motors, as selected by the operator.
  • truck-unloading conveyor 116 having inlet end 118 and outlet end 120.
  • Truck receiving hopper 122 is mounted on the inlet end of truck-unloading conveyor for receiving asphalt from a delivery truck such as truck 16.
  • Hopper 122 is generally of the same width as truck bed 17 and is adjustable in length so that the contents of a delivery truck can be easily and quickly emptied into the hopper.
  • Conveyor 116 is preferably of the drag-slat type and is adapted to quickly convey an entire truckload of asphalt from the inlet end to the outlet end and into surge bin 124.
  • Surge bin 124 is adapted to contain a quantity of asphalt and has a front side 126 and a rear side 128. Rear side 128 of surge bin 124 has a discharge opening to receive the inlet end of paver-loading conveyor 130.
  • Surge bin 124 and paver-loading conveyor 130 are mounted on turret 132 which is rotatably mounted on frame 102 so as to rotate about turret axis 134.
  • surge bin 124, engine compartment 112 and paver-loading conveyor 130 are all mounted on rotatable turret 132 (best shown in Figure 4 ).
  • turret 132 is rotated to the left and right of frame axis 114 by the action of a pair of actuators (one of which, hydraulic cylinder 136, is shown in Figure 4 ) which are connected between rear side 128 of surge bin 124 and a bracket (not shown) on the frame adjacent to the rear wheel set.
  • the turret may be rotated from an angle ⁇ of about 45° to the left of frame axis 114 (best shown in Figure 12 ) through an angle of about 45° to the right of frame axis 114.
  • Rotation of turret 132 to the left side of axis 114 is illustrated in Figures 10-13 .
  • Paver-loading conveyor 130 Extending from the discharge opening at the bottom of rear side 128 of preferred surge bin.124 is paver-loading conveyor 130.
  • Paver-loading conveyor 130 has an inlet end 138 (shown in Figure 18 ) and an outlet end 140.
  • Paver-loading conveyor 130 is mounted on turret 132, either directly or indirectly (by attachment to the surge bin).
  • Paver-loading conveyor 130 is preferably of the drag-slat type, and is adapted to transport asphalt from inlet end 138 in surge bin 124 to outlet end 140 and into the hopper of a paving machine (such as hopper 14 of paving machine 12, shown in Figure 1 ).
  • paver-loading conveyor 130 is pivotally attached to the turret (or to the surge bin), so that paver-loading conveyor 130 may be pivoted between a lowered position that is preferably about 12° above the horizontal (shown in Figures 14-17 ) and a raised position that is about 25° above the horizontal. It is also preferred that the paver-loading conveyor be pivoted between the lowered position and the raised position by a pair of actuators such as hydraulic cylinders 142 and 144 that are connected between rear side 128 of the surge bin and the paver-loading conveyor.
  • Figures 14-17 also show truck-unloading conveyor 116 in a raised travel position, which is accomplished by means known to those having ordinary skill in the art to which the invention relates.
  • a transverse mixing auger is mounted in the lower portion of preferred surge bin 124 between left outside sidewall 146 and right outside sidewall 148. Equidistant between the left outside sidewall and the right outside sidewall is a centerline (not shown, but which is coplanar with paver-loader conveyor axis 150, shown in Figure 5 ).
  • the transverse mixing auger includes a plurality of auger blades mounted on shaft 152 for rotation about transverse axis 154.
  • the transverse mixing auger includes left-side set 156 of auger blades, which is located between the surge bin centerline and left outside sidewall 146, and right-side set 158 of auger blades, which is located between the centerline and right outside sidewall 148.
  • inlet end 138 of paver-loading conveyor 130 is located between the left-side set of auger blades and the right-side set of auger blades.
  • auger blade 160 in left-side set 156 that is located nearest the centerline has a diameter greater than that of auger blade 162 in the left-side set that is nearest left outside sidewall 146.
  • the diameter of each auger blade in left-side set 156 is greater than the diameter of the adjacent auger blade in the left-side set that is located nearer to left outside sidewall 146.
  • auger blade 164 in right-side set 158 that is located nearest the centerline has a diameter greater than that of auger blade 166 in the right-side set that is nearest right outside sidewall 148.
  • each auger blade in right-side set 158 is greater than the diameter of the adjacent auger blade in the right-side set that is located nearer to right outside sidewall 148.
  • FIG 19 illustrates an alternative transverse mixing auger that is mounted in the lower portion of surge bin 224, which is interchangeable with surge bin 124 on vehicle 100.
  • This alternative mixing auger is mounted between left outside sidewall 246 and right outside sidewall 248 of surge bin 224. Equidistant between the left outside sidewall and the right outside sidewall is a centerline (not shown).
  • This mixing auger includes a plurality of auger blades mounted on a shaft for rotation about transverse axis 254.
  • This alternative mixing auger includes left-side set 256 of auger blades, which is located between the surge bin centerline and left outside sidewall 246, and right-side set 258 of auger blades, which is located between the centerline and right outside sidewall 248.
  • the inlet end of paver-loading conveyor 230 (which is essentially identical to conveyor 130) is located between the left-side set of auger blades and the right-side set of auger blades.
  • the auger blades of the alternative mixing auger having a varied diameter across the surge bin in the same way that the diameter of the auger blades varies across surge bin 124 of Figure 18 .
  • the pitch (indicated at 260) between the auger blade in the left-side set that is located nearest the centerline and the adjacent auger blade in the left-side set is greater than the pitch (indicated at 262) between the auger blade in the left-side set that is located nearest the left outside sidewall and the adjacent auger blade in the left-side set.
  • the pitch between each auger blade in the left-side set and the adjacent auger blade that is nearer the centerline is greater than the pitch between such auger blade and the adjacent auger blade nearer the left outside sidewall.
  • the pitch between the auger blade in the right-side set that is located nearest the centerline and the adjacent auger blade in the right-side set is greater than the pitch between the auger blade in the right-side set that is located nearest the right outside sidewall and the adjacent auger blade in the right-side set. It is also preferred that except for the auger blade located adjacent to the right outside sidewall, the pitch between each auger blade in the right-side set and the adjacent auger blade that is nearer the centerline is greater than the pitch between such auger blade and the adjacent auger blade nearer the right outside sidewall.
  • This alternative mixing auger has auger blades with varied diameter and pitch across the surge bin, which would also serve to minimize segregation and separation of aggregate materials of various particle sizes.
  • preferred vehicle 100 also includes a forward-mounted operator station, (shown schematically at 168) which is mounted above truck-unloading conveyor 116 on supports 170 and 172 that are attached to frame 102.
  • operator station 168 is located in front of the front wheel set. Since the operator's station of this embodiment of the invention is located on the front portion of the vehicle, it is also preferred that a rear-view camera 174 be provided which is mounted on the underside of paver-loading conveyor 130, and that the operator's station include a monitor (not shown) for displaying an image from camera 174.
  • steering of the front wheel set is operated by a conventional steering wheel (not shown) and steering for the rear wheel set is operated by a joystick that is located on a control console (not shown) in operator's station 168.
  • the preferred joystick for steering the rear wheel set has positions for steering left, steering right and centering the rear wheel set (so that the wheels of this wheel set are parallel to frame axis 114). By turning the steering wheel to the left or right and leaving the joystick in the neutral (or centered) position, the vehicle can be maneuvered like a conventional automobile.
  • the vehicle By turning the steering wheel to the left and shifting the joystick to the right (or by turning the steering wheel to the right and shifting the joystick to the left), the vehicle will steer in the direction the steering wheel is turned but with a smaller turning radius than if the rear wheels remain centered.
  • the vehicle By turning the steering wheel to the left and shifting the joystick to the left (or by turning the steering wheel to the right and shifting the joystick to the right), the vehicle will move in a "crab-wise" manner in a direction that is oblique to the frame axis.
  • this circuit includes a conventional steering unit 176 which controls the flow of fluid to left front steering cylinder 178 and right front steering cylinder 180.
  • a conventional hydraulic solenoid valve 182 controls the flow of fluid to left rear steering cylinder 184 and right rear steering cylinder 186.
  • a position sensor valve 188 also shown in
  • energizing switch 192 (by shifting the rear steering joystick to the left) allows four-way, three-position directional solenoid valve 182 to direct flow to the piston side of cylinder 184 and to the rod side of cylinder 186 to steer the rear wheel set to the left, while energizing switch 194 (by shifting the rear steering joystick to the right) allows four-way, three-position directional solenoid valve 182 to direct flow to the piston side of cylinder 186 and the rod side of cylinder 184 to steer the rear wheel set to the right.
  • rear steering centering switch 196 which is preferably operated by a button on the joystick, is energized, two-way poppet solenoid valve 193 directs flow through position sensor valve 188 to position hold valve 198, which causes left rear steering cylinder 184 and right rear steering cylinder 186 to center the rear wheel set so that the rear wheels are aligned with the frame axis. If the joystick is shifted either to the left or the right without engaging rear steering centering switch 196, position hold valve 198 will maintain the left-steered or right-steered position of the rear wheel set until the joystick is shifted in the other direction or centering switch 196 is energized.
  • FIGS 23-26 illustrate a second embodiment of the invention.
  • self-propelled material transport vehicle 200 includes frame 202 having a front end at 204 and a rear end at 206.
  • Vehicle 200 includes a vehicle drive system which is operatively attached to frame 202 and is adapted to drive the vehicle along a roadway surface.
  • This vehicle drive system includes a front wheel set comprised of left front wheel 208 and right front wheel 209 and a rear wheel set comprised of left rear wheel 210 and right rear wheel 211.
  • Each wheel of a wheel set is connected to an axle that is driven by a hydraulic motor (not shown) which is supplied with fluid under pressure by one or more hydraulic pumps (also not shown).
  • This hydrostatic drive system is similar to the hydrostatic drive systems of vehicles 10, 40 and 100.
  • An engine located in compartment 212 provides the motive force for the hydraulic pumps.
  • vehicle 200 also includes truck-unloading conveyor 216 having inlet end 218 and outlet end 220.
  • Truck receiving hopper 222 is mounted on the inlet end of truck-unloading conveyor for receiving asphalt from a delivery truck such as truck 16.
  • Hopper 222 is generally of the same width as truck bed 17 and is adjustable in length so that the contents of a delivery truck can be easily and quickly emptied into the hopper.
  • Conveyor 216 is preferably of the drag-slat type and is adapted to quickly convey an entire truckload of asphalt from the inlet end to the outlet end and into surge bin 223.
  • Surge bin 223 is adapted to contain a quantity of asphalt and has a front side 226 and a rear side 228.
  • Rear side 228 of surge bin 223 has a discharge opening to receive the inlet end of paver-loading conveyor 229.
  • Surge bin 223 and paver-loading conveyor 229 are mounted on turret 232 which is rotatably mounted on frame 202 so as to rotate about turret axis 234.
  • engine compartment 212 is mounted on frame 202, instead of on the turret.
  • a transverse mixing auger (not shown, but which may be similar to those illustrated in Figures 18 and 19 in connection with the description of vehicle 100) is mounted in the lower portion of preferred surge bin 223 between left outside sidewall 245 and right outside sidewall 247. Equidistant between the left outside sidewall and the right outside sidewall is a centerline (not shown, but which is coplanar with paver-loader conveyor axis 250, shown in Figure 26 ).
  • the transverse mixing auger includes a plurality of auger blades mounted on a shaft (not shown) for rotation about transverse axis 254.
  • the transverse mixing auger may include a left-side set of auger blades (not shown), which is located between the surge bin centerline and left outside sidewall 245, and a right-side set of auger blades (also not shown), which is located between the centerline and right outside sidewall 247.
  • Paver-loading conveyor 229 Extending from the discharge opening at the bottom of rear side 228 of preferred surge bin 223 is paver-loading conveyor 229.
  • Paver-loading conveyor 229 has an inlet end (similar to inlet end 138 of conveyor 130 of vehicle 100), and an outlet end 240.
  • the paver-loading conveyor is mounted on the turret, either directly or indirectly (by being attached to the surge bin).
  • the inlet end of paver-loading conveyor 229 is pivotally attached to the turret (or to the surge bin) so as to be located between the left-side set of auger blades and the right-side set of auger blades (similar to the location of inlet end 138 of paver-loading conveyor 130 which is illustrated in Figure 18 ).
  • Paver-loading conveyor 229 is preferably of the drag-slat type, and is adapted to transport asphalt from its inlet end in surge bin 223 to outlet end 240 and into the hopper of a paving machine (such as hopper 14 of paving machine 12, shown in Figure 1 ).
  • paver-loading conveyor 229 is adapted to be pivoted between a lowered position that is preferably about 12° above the horizontal (not shown, but similar to the lowered position of paver-loading conveyor 130 of vehicle that is shown in Figures 14-17 ) and a raised position that is about 25° above the horizontal. It is also preferred that the paver-loader conveyor be pivoted between the lowered position and the.raised position by an actuator comprising hydraulic cylinder 242 that is connected between rear side 228 of the surge bin and the paver-loader conveyor.
  • turret 232 is rotated to the left and right of frame axis 214 by the action of a pair of actuators (one of which, hydraulic cylinder 23 6, is shown in Figures 23 and 25 ) which are connected between rear side 228 of surge bin 223 and a bracket (not shown) on the frame adjacent to the rear wheel set.
  • a pair of actuators one of which, hydraulic cylinder 23 6, is shown in Figures 23 and 25
  • the turret may be rotated from an angle ⁇ of about 45° to the left of frame axis 214 (shown in Figure 26 ) through an angle of about 45° to the right of frame axis 214.
  • Vehicle 200 also includes a forward-mounted operator station, (shown schematically at 268) which is mounted above truck-unloading conveyor 216 on supports (including stairway support 270) that are attached to frame 202.
  • operator station 268 is located in front of the , front wheel set. Since the operator's station of this embodiment of the invention is located on the front portion of the vehicle, it is also preferred that a rear-view camera 274 be provided which is mounted on the underside of paver-loading conveyor 229, and that the operator's station include a monitor (not shown) for displaying an image from camera 274.

Claims (20)

  1. Véhicule de transfert de matériaux (100, 200) pour transporter de l'asphalte d'un camion de livraison à une machine de revêtement de route, lequel véhicule comprend :
    (a) un cadre (102, 202) possédant une première extrémité et une seconde extrémité ;
    (b) un système d'entraînement de véhicule qui est fixé de façon opérationnelle au cadre et adapté pour entraîner le véhicule ;
    (c) une trémie d'équilibre (124, 223) :
    (i) qui possède un côté avant (126, 225) ;
    (ii) qui possède un côté arrière (128, 228) ;
    (iii) qui est adaptée pour contenir une quantité d'asphalte ;
    (d) un convoyeur de déchargement de camion (116, 216) :
    (i) qui est monté sur le cadre (102, 202) ;
    (ii) qui possède une extrémité d'entrée (118, 218) ;
    (iii) qui possède une extrémité de sortie (120, 220) qui est adjacente au côté avant (126, 226) de la trémie d'équilibre (124, 223) ;
    (iv) qui est adapté pour déplacer l'asphalte de l'extrémité d'entrée à l'extrémité de sortie ;
    (e) un convoyeur de chargement de machine de revêtement de route (130, 229) :
    (i) qui possède une extrémité d'entrée (138) ;
    (ii) qui possède une extrémité de sortie (140, 240) ;
    (iii) qui est adapté pour déplacer l'asphalte de l'extrémité d'entrée à l'extrémité de sortie,
    caractérisé en ce qu'il comprend une tourelle (132, 232) qui est montée de façon rotative sur le cadre, la trémie d'équilibre et le convoyeur de chargement de machine de revêtement de route sont montés sur ladite tourelle, la trémie d'équilibre possède une ouverture de décharge dans le côté arrière, et l'extrémité d'entrée du convoyeur de chargement de machine de revêtement de route s'étend dans cette ouverture de décharge.
  2. Véhicule de transfert de matériaux selon la revendication 1, qui comprend une trémie de réception de camion (122, 222) qui est montée sur l'extrémité d'entrée du convoyeur de déchargement de camion (116, 216).
  3. Véhicule de transfert de matériaux selon la revendication 1, qui comprend un poste d'opérateur (168, 268) qui est monté au-dessus du convoyeur de déchargement de camion (116, 216).
  4. Véhicule de transfert de matériaux selon la revendication 1, dans lequel la trémie d'équilibre comprend :
    (a) une paroi latérale extérieure gauche (146), une paroi latérale extérieure droite (148), et une ligne centrale qui est équidistante de la paroi latérale extérieure gauche et la paroi latérale extérieure droite ;
    (b) une tarière de mélange transversale qui est montée dans la partie inférieure de la trémie d'équilibre entre la paroi latérale extérieure gauche et la paroi latérale extérieure droite, ladite tarière de mélange transversale comprenant :
    (i) un arbre (152) monté pour tourner autour d'un axe de rotation à l'intérieur de la trémie d'équilibre ;
    (ii) une pluralité d'aubes de tarière montée sur l'arbre, comprenant un jeu de côté gauche (156) d'aubes de tarière positionné entre la ligne centrale et la paroi extérieure gauche, et un jeu de côté droit (158) d'aubes de tarière positionné entre la ligne centrale et la paroi latérale extérieure droite, dans lequel l'aube de tarière (160) dans le jeu de côté gauche qui est positionnée la plus près de la ligne centrale possède un diamètre supérieur à celui de l'aube de tarière dans le jeu de côté gauche qui est la plus près de la paroi latérale extérieure gauche (162), et l'aube de tarière (164) dans le jeu de côté droit qui est positionnée la plus près de la ligne centrale possède un diamètre supérieur à celui de l'aube de tarière (166) dans le jeu de côté droit qui est la plus près de la paroi latérale extérieure droite.
  5. Véhicule de transfert de matériaux selon la revendication 4, dans lequel l'extrémité d'entrée (138) du convoyeur de chargement de machine de revêtement de route (130) est positionné entre le jeu de côté gauche (156) d'aubes de tarière et le jeu de côté droit (158) d'aubes de tarière.
  6. Véhicule de transfert de matériaux (100) selon la revendication 4, dans lequel :
    (a) à l'exception de l'aube de tarière (165) positionnée de façon adjacente à la paroi latérale extérieure gauche, le diamètre de chaque aube de tarière dans le jeu de côté gauche est supérieur au diamètre de l'aube de tarière adjacente dans le jeu de côté gauche qui est positionnée plus près de la paroi latérale extérieure gauche ;
    (b) à l'exception de l'aube de tarière (162) positionnée de façon adjacente à la paroi latérale extérieure droite, le diamètre de chaque aube de tarière dans le jeu de côté droit est supérieur au diamètre de l'aube de tarière adjacente dans le jeu de côté droit qui est positionnée plus près de la paroi latérale extérieure droite.
  7. Véhicule de transfert de matériaux selon la revendication 4, dans lequel :
    (a) le pas (260) entre l'aube de tarière (160) dans le jeu de côté gauche qui est positionnée la plus près de la ligne centrale et l'aube de tarière adjacente dans le jeu de côté gauche est supérieur au pas (262) entre l'aube de tarière (162) dans le jeu de côté gauche qui est positionnée la plus près de la paroi latérale extérieure gauche et l'aube de tarière adjacente dans le jeu de côté gauche ;
    (b) le pas entre l'aube de tarière dans le jeu de côté droit qui est positionnée la plus près de la ligne centrale et l'aube de tarière adjacente dans le jeu de côté droit est supérieur au pas entre l'aube de tarière dans le jeu de côté droit qui est positionnée la plus près de la paroi latérale extérieure droite et l'aube de tarière adjacente dans le jeu de côté droit.
  8. Véhicule de transfert de matériaux selon la revendication 7, dans lequel :
    (a) à l'exception de l'aube de tarière positionnée de façon adjacente à la paroi latérale extérieure gauche, le pas entre chaque aube de tarière dans le jeu de côté gauche et l'aube de tarière adjacente qui est plus près de la ligne centrale est supérieur au pas entre cette aube de tarière et l'aube de tarière adjacente plus près de la paroi latérale extérieure gauche ;
    (b) à l'exception de l'aube de tarière positionnée de façon adjacente à la paroi latérale extérieure droite, le pas entre chaque aube de tarière dans le jeu de côté droit et l'aube de tarière adjacente qui est plus près de la ligne centrale est supérieur au pas entre cette aube de tarière et l'aube de tarière adjacente plus près de la paroi latérale extérieure droite.
  9. Véhicule de transfert de matériaux selon la revendication 1 :
    (a) dans lequel le convoyeur de chargement de machine de revêtement de route (130, 229) est adapté pour pivoter entre une position abaissée et une position levée ;
    (b) qui comprend des moyens pour faire pivoter le convoyeur de chargement de machine de revêtement de route entre la position abaissée et la position levée.
  10. Véhicule de transfert de matériaux selon la revendication 9, dans lequel le convoyeur de chargement de machine de revêtement de route (130, 229) est adapté pour pivoter entre une position abaissée et une position levée qui est environ 25° au-dessus de l'horizontale.
  11. Véhicule de transfert de matériaux selon la revendication 9, dans lequel les moyens pour faire pivoter le convoyeur de chargement de machine de revêtement de route entre la position abaissée et la position levée comprennent un actionneur (142, 144, 242) qui est relié entre la trémie d'équilibre et le convoyeur de chargement de machine de revêtement de route.
  12. Véhicule de transfert de matériaux selon la revendication 1 :
    (a) dans lequel la tourelle est adaptée pour tourner entre une position gauche et une position droite ;
    (b) qui comprend des moyens pour faire tourner la tourelle entre la position gauche et la position droite.
  13. Véhicule de transfert de matériaux selon la revendication 12, dans lequel :
    (a) le cadre comprend un axe longitudinal ;
    (b) la tourelle (132, 232) est adaptée pour tourner entre une position gauche qui est environ à 45° sur la gauche de l'axe longitudinal du cadre et une position droite qui est environ à 45° sur la droite de l'axe longitudinal du cadre.
  14. Véhicule de transfert de matériaux selon la revendication 12, dans lequel les moyens pour faire tourner la tourelle entre la position gauche et la position droite comprennent un actionneur (236) qui est relié entre le cadre (202) et la trémie d'équilibre (223).
  15. Véhicule de transfert de matériaux selon la revendication 1, dans lequel le système d'entraînement de véhicule comprend :
    (a) un jeu de roues avant qui est monté sur l'extrémité avant du cadre ;
    (b) un jeu de roues arrière qui est monté sur l'extrémité arrière du cadre ;
    (c) un moteur pour fournir une puissance pour entraîner le jeu de roues avant et le jeu de roues arrière.
  16. Véhicule de transfert de matériaux selon la revendication 15, qui comprend :
    (a) un poste d'opérateur qui est positionné à l'avant du jeu de roues avant ;
    (b) une caméra de vue arrière qui est montée sur le convoyeur de chargement de machine de revêtement de route.
  17. Véhicule de transfert de matériaux selon la revendication 15, dans lequel le moteur est monté sur la tourelle.
  18. Véhicule de transfert de matériaux selon la revendication 15 :
    (a) dans lequel le jeu de roues avant est orientable ;
    (b) dans lequel le jeu de roues arrière est orientable ;
    (c) qui comprend un système de direction par lequel le jeu de roues avant seul peut être orienté, ou le jeu de roues avant et jeu de roues arrière peuvent être orientés simultanément.
  19. Véhicule de transfert de matériaux selon la revendication 18, dans lequel le système de direction comprend un actionneur qui est fixé de façon opérationnelle au jeu de roues avant et un actionneur qui est fixé de façon opérationnelle au jeu de roues arrière.
  20. Véhicule de transfert de matériaux selon la revendication 18, dans lequel le système de direction comprend des moyens pour permettre au jeu de roues arrière d'être orientable ou centré selon le choix de l'opérateur.
EP06838985A 2006-12-06 2006-12-06 Vehicule de transfert de materiaux a des fins d'utilisation pour le revetement en asphalte Not-in-force EP1891272B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2006/046346 WO2007117287A1 (fr) 2006-03-10 2006-12-06 Vehicule de transfert de materiaux a des fins d'utilisation pour le revetement en asphalte

Publications (2)

Publication Number Publication Date
EP1891272A1 EP1891272A1 (fr) 2008-02-27
EP1891272B1 true EP1891272B1 (fr) 2008-09-24

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EP06838985A Not-in-force EP1891272B1 (fr) 2006-12-06 2006-12-06 Vehicule de transfert de materiaux a des fins d'utilisation pour le revetement en asphalte

Country Status (7)

Country Link
EP (1) EP1891272B1 (fr)
CN (1) CN101273172B (fr)
AT (1) ATE409250T1 (fr)
CA (1) CA2591166C (fr)
DE (1) DE602006002890D1 (fr)
ES (1) ES2313686T3 (fr)
NO (1) NO335981B1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9708779B2 (en) * 2014-12-22 2017-07-18 Roadtec, Inc. Material transfer vehicle having an expandable truck-receiving hopper
RU2019138600A (ru) * 2017-06-01 2021-07-12 Роудтек, Инк. Быстросменяемое навесное оборудование для асфальтоперегружателя
US11560676B2 (en) * 2019-02-13 2023-01-24 Caterpillar Paving Products Inc. Determine optimal frequency to load haul truck
CN212587080U (zh) * 2020-01-17 2021-02-23 石家庄安瑞科气体机械有限公司 一种lpg运输半挂车消防教学设备
CN111519495B (zh) * 2020-04-07 2021-08-31 江苏集萃道路工程技术与装备研究所有限公司 一种就地复拌机用提料装置

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8402831A (nl) * 1984-09-14 1986-04-01 Zijlstra & Bolhuis Bv Zwenkbare boxenvuller.
US4818139A (en) * 1987-08-25 1989-04-04 Barber-Greene Company Methods and apparatus for making an asphalt-aggregate pavement
DE19821090A1 (de) * 1998-05-12 1999-12-02 Abg Allg Baumaschinen Gmbh Straßenfertiger
CN2732808Y (zh) * 2004-08-23 2005-10-12 徐州工程机械科技股份有限公司路面机械分公司 道路摊铺机专用沥青混凝土转运设备

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Publication number Publication date
CN101273172A (zh) 2008-09-24
ES2313686T3 (es) 2009-03-01
ATE409250T1 (de) 2008-10-15
NO20084097L (no) 2008-09-25
DE602006002890D1 (de) 2008-11-06
CA2591166A1 (fr) 2008-06-06
CN101273172B (zh) 2010-10-13
CA2591166C (fr) 2010-08-03
EP1891272A1 (fr) 2008-02-27
NO335981B1 (no) 2015-04-07

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