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WO1996021579A1 - Camion perfectionne de transport de marchandise en vrac - Google Patents

Camion perfectionne de transport de marchandise en vrac Download PDF

Info

Publication number
WO1996021579A1
WO1996021579A1 PCT/GB1996/000051 GB9600051W WO9621579A1 WO 1996021579 A1 WO1996021579 A1 WO 1996021579A1 GB 9600051 W GB9600051 W GB 9600051W WO 9621579 A1 WO9621579 A1 WO 9621579A1
Authority
WO
WIPO (PCT)
Prior art keywords
vessel
discharge plate
truck
bulk material
truck according
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.)
Ceased
Application number
PCT/GB1996/000051
Other languages
English (en)
Inventor
Gordon Brown
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.)
DDT ENGINEERING Ltd
Original Assignee
DDT ENGINEERING Ltd
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 DDT ENGINEERING Ltd filed Critical DDT ENGINEERING Ltd
Priority to AU43942/96A priority Critical patent/AU4394296A/en
Publication of WO1996021579A1 publication Critical patent/WO1996021579A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
    • B60P1/00—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading
    • B60P1/006—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading charge and discharge with pusher plates

Definitions

  • the invention relates to an improved truck for carrying bulk materials such as earth, sand, coal and grain. It is applicable with particular advantage to trucks used in the construction industry, for carrying earth and the like.
  • Typical bulk materials are transported in tipper trucks, or dump trucks. They are available in both rigid and articulated configuration.
  • a dump truck body which carries bulk material is pivotally mounted at the rear, with the material being discharged by tipping the body, by means of extending hydraulic rams fitted to the front of the body.
  • the rear of the body includes a hydraulically operated bottom tailgate which may also hold shut a top tailgate.
  • Such trucks are commonly used for the transport of bulk materials, and are used in the construction industry where the vehicles are often off road vehicles.
  • a conventional dump truck cannot discharge its load in areas of restricted height such as tunnels or under overhead cables. It is also liable to roll over sideways whilst tipping on uneven ground due to its centre of gravity being raised significantly and the uncontrolled way in which the bulk material is discharged.
  • the load is sticky, for example earth, merely tipping the body is not sufficient to clear the body completely of the load - some may adhere to the body walls, especially in the corners.
  • a bulk material truck of the type suitable for carrying earth or the like comprising
  • a load carrying vessel for receiving the bulk material, the vessel having a discharge port for discharging the bulk material
  • the discharge plate is capable of moving within the load carrying vessel to clear the bulk material out of the vessel without requiring the vessel to tip.
  • the stability of the truck of the present invention may be substantially unaffected during unloading.
  • the present truck may be usable in confined spaces.
  • a means for driving the discharge plate the arrangement being that the discharge plate moves in response to the means for driving the discharge plate.
  • the means for driving the discharge plate comprises an hydraulic cylinder or ram.
  • said means for driving the discharge plate comprises a multi stage hydraulic cylinder.
  • it may also comprise a screw drive or a wire rope mechanism, or any means to power drive the plate.
  • said discharge port is positioned at a rear of the load carrying vessel, and said discharge plate is arranged to move from the front of the truck to the rear of the truck.
  • Said discharge plate may comprise a front wall of the load carrying vessel.
  • the vessel may be a four walled vessel with a separate plate mounted to move within it to form the discharge plate.
  • the discharge plate can be arranged such that it fully clears out the load carrying vessel to ensure that no bulk material is retained within the load carrying vessel.
  • the discharge plate extends across an entire cross section of the load carrying vessel.
  • said discharge plate is mounted upon a plurality of rollers.
  • said discharge plate is mounted upon a lower set of rollers, arranged to run along a base of the vessel, and on an upper set of rollers arranged to run along a wall of the vessel.
  • a tailgate arranged to close said discharge port.
  • the discharge port preferably comprises the entire rear face of the vessel which is closed by a tailgate.
  • said tailgate is hydraulically operable.
  • said tailgate is rotatable for opening said discharge port.
  • an hydraulic mechanism arranged to operate in response to movement of said discharge plate, so that as said discharge plate moves towards said discharge port, said tailgate opens.
  • said discharge plate comprises an upright headboard mounted at an upper end of the discharge plate.
  • the discharge plate may include at its top a pivotally mounted head board and the truck also includes means to hydraulically pivot the head board from an inclined position facing towards the front of the truck to an upright position when the discharge plate is pushing the bulk material towards and through the discharge port.
  • Figure 1 shows a truck in accordance with the invention before discharge, fully loaded with material, with the multi stage hydraulic cylinder fully retracted and the tailgate hydraulically locked shut;
  • Figure 2 shows the truck of figure 1 during discharge and illustrates the moving discharge plate running on sets of rollers top and bottom and the tailgate hydraulically powered up;
  • Figure 3 shows the truck of figure 1 after discharge and illustrates the multi stage hydraulic cylinder fully extended and the position of the moving discharge plate and tailgate after unloading all the material; and Figure 4 shows in rear view, the truck of figures 1 to 3 on uneven ground.
  • the truck 1 comprises a chassis 2 having at a front end thereof a cab and driving portion 30, an engine, and a plurality of driven wheels comprising a set of front wheels 40 on a front axle and at a rear end of the chassis, a set of rear wheels 41 on first and second rear axles, and a load carrying vessel 3 arranged over the rear wheels, and having a centre of gravity, when loaded above the rear axles.
  • the load carrying vessel 3 is defined by two vertical or upright side walls 5, 7, a base 9, a discharge plate 1 1 and movable tailgate 13.
  • the load carrying vessel 3 is capable of receiving bulk material 15 through an open top 17.
  • the discharge plate 1 1 is mounted to move within the vessel 3 to push the bulk material 17 along the vessel towards and through discharge port 19 defined when tailgate 13 is opened.
  • the side walls 5, 7 include at their upper edges a projecting lip 21.
  • the discharge plate 1 1 forms the front wall of the vessel 3 and extends across the cross section of the vessel 3 between the side walls 5, 7 and the base 9.
  • the discharge plate 1 1 is mounted upon a set of lower rollers 23 and a set of upper rollers 25.
  • the lower rollers 23 run along the base 9, and the upper rollers run along the lips 21.
  • the discharge plate 1 1 extends across the width of the load vessel 3.
  • the discharge plate may be of a substantially "I" shape, comprising an upright plate member 40 extending between the upper and lower rollers, at an upper end of the plate 40, an upper roller mounting plate 41 extends in a direction along the length of the vessel
  • a lower roller mounting plate 42 also extending in a direction substantially along the main length of the vessel 3, first and second upper rollers 44, 45 of the upper roller set being spaced apart from each other along the main length direction of the vessel and similarly, first and second lower rollers 46, 47 of the lower roller set being spaced apart from each other along the main length direction of the load vessel 3.
  • a multi stage hydraulic cylinder 27 ram is mounted between a fixed bracket 29 extending upwardly from chassis 31 of the truck and the discharge plate 1 1.
  • the multi stage hydraulic cylinder 27 extends to urge the discharge plate 1 1 along the main length of the load carrying vessel from a front of the vessel to a rear of the vessel, and thus to urge the bulk material towards the discharge port.
  • the multistage hydraulic cylinder 27 may be contracted to draw the discharge plate 1 1 back along the load vessel 3 in a direction from the rear of the vessel back towards the front of the vessel.
  • a head board 33 may be pivotally mounted to the top of the plate 1 1 and is actuable by a hydraulic cylinder (not shown). In the front position of the plate 1 1 , the head board 33 is in an inclined position facing towards the front of the truck to retain the bulk material which is heaped over the walls of the vessel 3.
  • the hydraulic cylinder 27 is actuated to move the discharge plate 1 1 , at the same time the head board 33 is rotated to a vertical position shown in figures 2 and 3 to propel the bulk material 15.
  • the head board is rigid and in a permanently upright position.
  • the tailgate 13 is hydraulically actuated by hydraulic cylinders (not shown).
  • the tailgate 13 is pivotally mounted to the lip 21 at the top of the walls, and is over centre mounted so that in its open position, as in figures 2 and 3, the rear of the vessel is clear for discharge.
  • the driver of the truck operates a two way lever, situated inside the cab 35, which controls the extending of the multi stage hydraulic cylinder 27, which then moves the discharge plate 1 1 in a controlled and regulated manner as shown in figure 2.
  • the operation of the above two way lever simultaneously lifts the hydraulic operated tailgate 13. As soon as the driver releases the above two way lever, the unloading operation stops.
  • Figure 3 shows the truck with its load fully discharged and illustrates the multi stage hydraulic cylinder 27 fully extended and the position of the moving discharge plate 1 1 and tailgate 13.
  • the driver operates the two way lever in the opposite direction to that used for extending it. It will be possible to lock the level in position when retracting in order to make sure the cylinder is always fully retracted. The lever may automatically release to its central position as soon as the cylinder is fully retracted.
  • Figure 4 shows the truck in rear view with the tailgate 13 is in an open position.
  • the truck is shown on uneven ground, illustrating that a centre of gravity of the load carrying vessel 3 remains above the wheel base of the truck, between left rear wheels 41 and right rear wheels 42, as the bulk material 15 is discharged.
  • the truck may discharge its load within a tunnel 50, or underneath overhead cables 51 , since the load is discharged in a direction along the main length of the load vessel without raising the load vessel relative to the chassis.
  • the embodiments of the invention may have an advantage of providing an off road dump truck having high ground clearance underneath axles of the truck, and having the axles and wheels of the truck underneath the load carrying vessel, the centre of gravity of the load carrying vessel being above the axles.
  • the truck may have improved stability during discharging of the load as compared to the conventional tipping dump truck in which the centre of gravity of the load vessel is raised relative to the axles during tipping.
  • the overall height of the dump truck of the present embodiment may remain constant during discharging of the dump truck, enabling operation underneath overhead obstacles.

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Loading Or Unloading Of Vehicles (AREA)

Abstract

L'invention se rapporte à un camion à benne perfectionné, destiné à transporter un matériau en vrac, tel que de la terre, du sable, du charbon ou du minerai. Ce camion comprend une benne (3) de transport de charge qui sert à recevoir un matériau (15) en vrac et est pourvue d'une ouverture (19) destinée au déchargement dudit matériau. Une plaque (11) de déchargement est montée de façon à se déplacer à l'intérieur de la benne afin de pousser le matériau en vrac vers l'ouverture de déchargement et à travers celle-ci, afin de décharger ce matériau sans faire pivoter la benne transportant la charge.
PCT/GB1996/000051 1995-01-13 1996-01-12 Camion perfectionne de transport de marchandise en vrac Ceased WO1996021579A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU43942/96A AU4394296A (en) 1995-01-13 1996-01-12 Improved bulk material carrying truck

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9500649.0A GB9500649D0 (en) 1995-01-13 1995-01-13 Improved bulk material carrying truck
GB9500649.0 1995-01-13

Publications (1)

Publication Number Publication Date
WO1996021579A1 true WO1996021579A1 (fr) 1996-07-18

Family

ID=10767979

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1996/000051 Ceased WO1996021579A1 (fr) 1995-01-13 1996-01-12 Camion perfectionne de transport de marchandise en vrac

Country Status (4)

Country Link
AU (1) AU4394296A (fr)
CA (1) CA2242869A1 (fr)
GB (1) GB9500649D0 (fr)
WO (1) WO1996021579A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2341839A (en) * 1998-09-25 2000-03-29 Caterpillar Inc OVerhead rail type ejector works machine
US6155776A (en) * 1998-09-25 2000-12-05 Caterpillar Inc. Hydraulic system for a work machine having an ejector cylinder and a tailgate cylinder
US6176673B1 (en) 1998-09-25 2001-01-23 Caterpillar Inc. Tailgate assembly having side mounted hydraulic cylinders
US20130149089A1 (en) * 2011-12-12 2013-06-13 Pro-Tech Enterprises, Llc Systems and devices for removing materials from vacuum truck tanks
CN110436221A (zh) * 2019-07-19 2019-11-12 界首市金龙机械设备有限公司 一种移动式车载散粮智能卸车平台

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2137380A1 (fr) * 1971-05-14 1972-12-29 Assier Guy
US3896947A (en) * 1972-07-25 1975-07-29 Arthur W Pearce Spreading and end spill dump trailer
US4071153A (en) * 1976-08-23 1978-01-31 Robert J. Bruce Vertical pusher plate for a horizontally discharging semi-trailer
JPS54120122A (en) * 1978-03-09 1979-09-18 Shin Meiwa Ind Co Ltd Discharge plate supporting device in slide dump car
EP0012227A1 (fr) * 1978-12-09 1980-06-25 Rothalit, Bau- und Wegebaustoffe GmbH Semi-remorque pour transporter des matériaux en vrac

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2137380A1 (fr) * 1971-05-14 1972-12-29 Assier Guy
US3896947A (en) * 1972-07-25 1975-07-29 Arthur W Pearce Spreading and end spill dump trailer
US4071153A (en) * 1976-08-23 1978-01-31 Robert J. Bruce Vertical pusher plate for a horizontally discharging semi-trailer
JPS54120122A (en) * 1978-03-09 1979-09-18 Shin Meiwa Ind Co Ltd Discharge plate supporting device in slide dump car
EP0012227A1 (fr) * 1978-12-09 1980-06-25 Rothalit, Bau- und Wegebaustoffe GmbH Semi-remorque pour transporter des matériaux en vrac

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 3, no. 144 (M - 82) 28 November 1979 (1979-11-28) *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2341839A (en) * 1998-09-25 2000-03-29 Caterpillar Inc OVerhead rail type ejector works machine
US6155776A (en) * 1998-09-25 2000-12-05 Caterpillar Inc. Hydraulic system for a work machine having an ejector cylinder and a tailgate cylinder
US6176673B1 (en) 1998-09-25 2001-01-23 Caterpillar Inc. Tailgate assembly having side mounted hydraulic cylinders
GB2341839B (en) * 1998-09-25 2002-08-14 Caterpillar Inc Overhead rail for an ejector type work machine
DE19944978B4 (de) * 1998-09-25 2012-10-04 Caterpillar Inc. Obenliegende Schiene für eine Auswurfarbeitsmaschine
US20130149089A1 (en) * 2011-12-12 2013-06-13 Pro-Tech Enterprises, Llc Systems and devices for removing materials from vacuum truck tanks
CN110436221A (zh) * 2019-07-19 2019-11-12 界首市金龙机械设备有限公司 一种移动式车载散粮智能卸车平台

Also Published As

Publication number Publication date
AU4394296A (en) 1996-07-31
CA2242869A1 (fr) 1996-07-18
GB9500649D0 (en) 1995-03-08

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