WO2005016732A1 - Vehicule lourd - Google Patents
Vehicule lourd Download PDFInfo
- Publication number
- WO2005016732A1 WO2005016732A1 PCT/EP2004/007659 EP2004007659W WO2005016732A1 WO 2005016732 A1 WO2005016732 A1 WO 2005016732A1 EP 2004007659 W EP2004007659 W EP 2004007659W WO 2005016732 A1 WO2005016732 A1 WO 2005016732A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- tires
- vehicle
- train
- vehicle according
- traction
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D61/00—Motor vehicles or trailers, characterised by the arrangement or number of wheels, not otherwise provided for, e.g. four wheels in diamond pattern
- B62D61/10—Motor vehicles or trailers, characterised by the arrangement or number of wheels, not otherwise provided for, e.g. four wheels in diamond pattern with more than four wheels
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D61/00—Motor vehicles or trailers, characterised by the arrangement or number of wheels, not otherwise provided for, e.g. four wheels in diamond pattern
- B62D61/12—Motor vehicles or trailers, characterised by the arrangement or number of wheels, not otherwise provided for, e.g. four wheels in diamond pattern with variable number of ground engaging wheels, e.g. with some wheels arranged higher than others, or with retractable wheels
Definitions
- the invention relates to a heavy vehicle such as a transport vehicle or a “Civil Engineering” machine, with a mass greater than 500 tonnes, equipped with tires with a diameter greater than three meters and having an axial width greater than 37 inches.
- a heavy vehicle such as a transport vehicle or a “Civil Engineering” machine, with a mass greater than 500 tonnes, equipped with tires with a diameter greater than three meters and having an axial width greater than 37 inches.
- Such vehicles generally intended to carry heavy loads, include a front axle assembly comprising two steering wheels and a rear axle assembly, most often rigid, comprising four drive wheels distributed two by two on each side.
- a train is defined as a set of elements used to connect the fixed structure of the vehicle to the ground.
- the axial or transverse direction of the tire is parallel to the axis of rotation of the tire.
- the circumferential direction of the tire, or longitudinal direction is the direction corresponding to the periphery of the tire and defined by the rolling direction of the tire.
- the axis of rotation of the tire is the axis around which it rotates in normal use.
- the difficulties of access and the performance requirements lead the manufacturers of these vehicles to increase their carrying capacity. It follows that the vehicles are getting larger and therefore themselves heavier and heavier and can carry an increasingly large load.
- the current masses of these vehicles can reach several hundred tonnes and the same applies to the load to be transported; the overall mass can reach up to 600 tonnes. Since the load capacity of the vehicle is directly linked to that of the tires, it is known that to increase this load capacity, the quantity of air contained in the tires must be increased.
- vehicles of this type such as the "dumper" used in mines, have a rear axle on which are mounted four wheels, paired in pairs, to meet these requirements.
- the dimensions of these wheels and consequently those of the tires and in particular the stiffness of the low areas require that said wheels be made in several parts to allow mounting of the tire on a rim.
- the assembly and disassembly of these tires which intervene in the event of replacement or maintenance require long and tedious handling.
- the number of clamping parts to be handled during these operations can be greater than 200, to which are associated the tightening torques of these very large parts. The time of these operations is consequently long and therefore detrimental to the productivity sought in the work of operating these mines.
- a heavy vehicle such as a transport vehicle or a "Civil Engineering” machine with a mass greater than 500 tonnes, equipped with tires with a diameter greater than three meters and fifty having a axial width greater than 37 inches, comprising a directional front axle provided with at least two tires and a rear axle comprising at least two tires and by which at least part of the traction is transmitted, the vehicle comprising a third intermediate train , said intermediate train being directional, and said intermediate train being liftable so that in the high position, the tires of said train are not in contact with the ground.
- the intermediate train according to the invention is directional to allow the vehicle to follow curved paths while reducing the risks of observing a vehicle which continues a linear path when the will is to turn.
- the term directional should be understood in the sense of the invention as possibly corresponding either to a controlled directional intermediate train or to a directional intermediate train corresponding to a self-alignment of the tires.
- the steering angle of the tires of the intermediate train is less than the steering angle of the tires of the front axle.
- the directional intermediate train corresponds to a self-alignment of the tires, it is for example of the pulled arm type, that is to say with axes of rotation put forward of the tires.
- the invention also advantageously provides for being able to block the free alignment of the tires, in particular for authorizing reverse gear.
- the intermediate train is liftable, that is to say that its position relative to the ground can be varied between at least two positions, one allowing the tires to be in contact with the ground and therefore to help carry the load.
- the other position, or high position keeps the tires away from the ground. This latter position makes it possible, for example, to avoid the wear of said tires when the vehicle is empty, that is to say when it is not carrying a load, and therefore when the tires of the other trains are sufficient to carry the vehicle load.
- the intermediate train is advantageously raised to avoid any contact of the tires of said intermediate train with the ground and therefore reduce the wear of said tires.
- the vehicle being intended to carry a load and to transport it on a terrain
- the longitudinal position of the intermediate train is a function of the load and / or the slope of the land.
- the longitudinal position of the intermediate train is a function of the load and / or the slope of the land.
- the presence of an intermediate train makes it possible to better distribute this load over more tires.
- directional trains This type of vehicle being usually assembled at the place of use, the designer of the vehicle can, according to a first variant, provide several possible longitudinal positions for fixing said intermediate train and also provide for possible adaptation of the directional and lifting systems linked to the intermediate train. During the final assembly phase of the vehicle, the position of the intermediate train is thus chosen and fixed according to the various parameters set out above.
- the designer of the vehicle advantageously provides an intermediate train with variable longitudinal position and adjustable as a function of the load carried and of the slopes that the vehicle encounters.
- the designer then provides for a simultaneous adaptation of the directional and lift systems linked to the intermediate train.
- the longitudinal position of the intermediate train is controlled and controlled by a computer in particular connected to different sensors inserted in each of the tires of the directional trains, said sensors being able to establish the point at any time. tires and thus define the loads they undergo.
- Another parameter to be taken into account when designing such a vehicle is its size and more specifically its width.
- each of the trains could for example comprise a single tire on either side.
- at least one train comprises four tires paired two by two on either side of said train. According to such an embodiment, the widths of the tires can be reduced compared to those of the tires of a standard vehicle comprising two trains, for a given load.
- the rear axle comprises at least four tires and two of them transmit motor skills.
- two tires and preferably the two axially outer tires on the rear axle advantageously do not transmit traction and have the essential function only of carrying part of the load.
- the intermediate train advantageously comprises four tires and two of them transmit motor skills.
- two tires and preferably the two axially outer tires on said intermediate train advantageously do not transmit traction and have the essential function only of carrying part of the load.
- the invention also provides that the tires of the front axle can advantageously transmit part of the traction.
- the invention also provides that the front axle comprises four tires, at least two tires of said front axle transmitting part of the traction, as mentioned above.
- the two axially inner tires are preferably the tires transmitting traction.
- Another alternative embodiment of the invention provides that at least two tires, and preferably the tires of the rear axle axially to the outside, do not transmit traction only when the vehicle follows a non-rectilinear trajectory, or preferably when 'it follows a curve whose radius of curvature is less than a predetermined value.
- Such an embodiment can be obtained by a device for decoupling between said tires and the members transmitting motor skills.
- a device can be controlled by the directional members of the vehicle according to any means known to a person skilled in the art.
- the invention advantageously provides that the variant providing that at least two tires of the front axle transmit part of the traction, is effective only when the vehicle follows a non-rectilinear trajectory, or preferably when it follows a curve whose radius of curvature is less than a predetermined value.
- the invention also provides for the case of a vehicle as described above, each of the tires of which is associated with an electric motor, for example incorporated in the wheel associated with the tire or in the hub of the train near a tire in the case of an embodiment according to the technique described in document WO 00/71365, and repeated below. According to these various possible embodiments, the use of electric motors associated with a tire will make it possible to distribute the variable motor skills as a function of the tires and of the trajectory followed.
- the invention also provides that only part of the tires transmitting the motor skills is driven by electric motors; these may for example be tires of the front axle, those of the rear axle retaining a conventional engine and transmission.
- the invention also provides when the drive is only due to electric motors, that only certain tires are associated with such electric motors and that the other tires have the essential function only of carrying.
- the invention also advantageously provides for combining the vehicle as defined above with a wheelless mounting on the trains, the tires being placed on a train provided for this purpose by means of first mounting rings forming the seats of the beads. tires and second locking rings guaranteeing the positioning of said first rings and therefore tires. An assembly of this type has already been described in patent application WO 00/71365 cited above.
- the invention requires according to this embodiment to provide on the trains recesses to receive the locking rings, the establishment of two of these rings being necessary by tire.
- Such a type of mounting of the tires makes it possible to further improve the efficiency of the vehicle according to the invention, which, in addition to less rapid wear of the tires, allows faster interventions in the event of a change of tires.
- FIGS. 1 to 3 represent: FIG. 1, a diagram seen from above of a vehicle according to the invention, FIG.
- FIG. 1 a diagram seen from above of a vehicle according to a second embodiment of the invention
- FIG. 3 a diagram seen from above of a vehicle according to a third embodiment of the invention.
- the figures are not shown to scale to simplify understanding.
- the figures represent only half of the vehicles which extend symmetrically with respect to the axis XX 'which represents the longitudinal median plane of the vehicle.
- FIG. 1 is shown schematically a half-vehicle 1 produced in accordance with the invention which comprises six tires distributed over the three trains 5, 6, 7 including two directional tires on the front axle 5.
- FIG. 1 illustrating that half of the vehicle only three tires 2, 3, 4 are shown.
- the vehicle 1 shown diagrammatically in this FIG. 1 is a heavy vehicle having a total laden weight of the order of 720 tonnes.
- the tires fitted to the vehicle are large tires with an aspect ratio H / S equal to 0.70, H being the height of the tire on the rim and S the maximum axial width of the tire, when the latter is mounted on its service rim and inflated to its recommended pressure.
- H being the height of the tire on the rim
- S the maximum axial width of the tire, when the latter is mounted on its service rim and inflated to its recommended pressure.
- These are tires of size 59 / 70R69.
- These tires comprise a radial carcass reinforcement composed of inextensible metallic cables of steel oriented radially, anchored in each bead of the tires.
- the tires are mounted according to the technique described in patent application WO 00/71365. According to this technique, each train of the vehicle is designed to receive the tires by means of rings having a surface forming the seat for receiving the beads of the tires. The surface of these rings is advantageously of frustoconical shape.
- the receiving rings are themselves blocked on the hub of the train by means of locking rings, part of their surface of which is complementary to the shape of recesses provided on said hub in which said locking rings are inserted.
- the intermediate train 6 is designed to be raised to allow the tire 3 to be raised as soon as the vehicle does not carry any load so as not to cause wear of this tire 3 when its use is not necessary.
- the tire 3 only has the essential function of carrying and does not participate in the transmission of motor skills.
- Such an embodiment consists in attaching the tire to a system of the free bearing type which allows the free rotation of said tire 3.
- the invention should not be understood as being limited to this type of embodiment, the tire 3 being able according to other embodiments transmit part of the motor skills, as soon as it is in contact with the ground.
- the vehicle thus produced allows a load capacity greater than that of current vehicles and of the order of 1000 tonnes.
- the design of a vehicle of the same type, that is to say intended for the same load capacity, equipped with four tires paired two by two leads to the use of the same tires.
- This type of vehicle does not exist, it was impossible to carry out tests; however, calculation and simulations allow the skilled person to obtain the transportable loads by these vehicles, the dimensions thereof as well as the constraints imposed on the tires and consequently an estimate of the wear and the fatigue they endure. Dimensions calculations were made on the basis of these two vehicles; the results obtained show that the vehicle according to the invention has an axial width, measured in the direction of a train equal to 8 meters.
- the axial width, measured in the same way on the rear axle of the vehicle comprising four twin tires two to two on this train equals 9.5 meters. This difference in size between these two vehicles makes it possible to envisage the circulation of vehicles according to the invention on the tracks of existing mines for transported loads greater than the capacities of current vehicles. Furthermore, simulations have been carried out to show the lifetimes of the tires fitted to a vehicle according to the invention and those of the tires mounted twin on the rear axle of a conventional vehicle. The results obtained according to the invention are superior in terms of wear, in particular on winding routes.
- the invention may provide that the tire 2 mounted on the front axle 5 also participates in the transmission of motor skills. In addition, the fact that the tire 2 transmits part of the traction can improve the handling of the vehicle in curved trajectories.
- FIG. 2 illustrates another embodiment of a vehicle l 'according to the invention, which differs from the previous one by the presence of complementary tires 8 ′, 9 ′, 10 ′ mounted on the different trains 5 ′, 6 ′, 7 'and paired respectively with the tires 2', 3 ', 4'.
- the addition of these tires can allow a distribution of the load on more tires.
- Such an embodiment can make it possible, for example, to further increase the load capacity or else to authorize a reduction in the size of the tires, in particular in the latter case with a width of the vehicle less than that of conventional vehicles for a given load.
- Such a configuration according to the invention can in particular lead to a load capacity greater than 1000 tonnes.
- the production of such a vehicle 1 ′ may provide that the tires 8 ′, 9 ′, 10 ′ have the sole function of carrying part of the load.
- the tires 8 ′, 9 ′, 10 ′, or some of them can participate in the transmission of the motor skills either permanently or temporarily as mentioned above, or even in a variable manner, for example by the use of electric motors.
- the invention also provides examples of embodiments, not illustrated, according to which the vehicle may include tires paired on either side of a train on only one of the trains or two of the trains.
- FIG. 3 illustrates a last embodiment of a vehicle 1 "according to the invention, which differs from the previous one by the presence of complementary tires 11" mounted on the rear axle 7 "and associated with tires 4" and 10 ". The addition of these tires can allow a distribution of the load on more tires.
- Such an embodiment can for example further increase the load capacity or even allow a reduction in the size of the tires, in particular in the latter. case with a width of the vehicle less than that of usual vehicles for a given load.
- Such a configuration according to the invention can in particular lead to a load capacity of the order of 1400 tonnes.
- the production of such a 1 "vehicle may provide for example that the 8 ", 9", 10 "and 11" tires have the sole function of carrying part of the load.
- the tires 8 ", 9", 10 "and 11" or some of them can participate in the transmission of the motor skills either permanently or temporarily as mentioned above, or again in a variable manner, for example by the use of electric motors.
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Tires In General (AREA)
- Vehicle Body Suspensions (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006519847A JP4975434B2 (ja) | 2003-07-17 | 2004-07-12 | 大型車両 |
CA2532015A CA2532015C (fr) | 2003-07-17 | 2004-07-12 | Vehicule lourd |
CN200480020441.2A CN1822982B (zh) | 2003-07-17 | 2004-07-12 | 重型车辆 |
US11/329,486 US7635038B2 (en) | 2003-07-17 | 2006-01-11 | Heavy vehicle |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR03/08754 | 2003-07-17 | ||
FR0308754 | 2003-07-17 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/329,486 Continuation US7635038B2 (en) | 2003-07-17 | 2006-01-11 | Heavy vehicle |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005016732A1 true WO2005016732A1 (fr) | 2005-02-24 |
Family
ID=34178773
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2004/007659 WO2005016732A1 (fr) | 2003-07-17 | 2004-07-12 | Vehicule lourd |
Country Status (5)
Country | Link |
---|---|
US (1) | US7635038B2 (fr) |
JP (1) | JP4975434B2 (fr) |
CN (1) | CN1822982B (fr) |
CA (1) | CA2532015C (fr) |
WO (1) | WO2005016732A1 (fr) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6994709B2 (en) * | 2001-08-30 | 2006-02-07 | Olympus Corporation | Treatment device for tissue from living tissues |
US7950478B2 (en) * | 2008-11-21 | 2011-05-31 | Intelliport Corporation | Heavy capacity transporter having multiple track-axles |
US8215423B2 (en) | 2009-10-23 | 2012-07-10 | Intelliport Corporation | Stack axle assembly and transporters having the same |
CN106741237A (zh) * | 2016-12-30 | 2017-05-31 | 宁波江北瑞臣工艺品设计有限公司 | 一种运输车 |
SE541394C8 (en) * | 2017-12-22 | 2019-12-03 | Scania Cv Ab | Method and a control arrangement for controlling vehicle operation comprising axle load control of at least one vehicle during vehicle operation |
CN114179934A (zh) * | 2020-09-15 | 2022-03-15 | 厦门雅迅网络股份有限公司 | 一种车辆的提升桥控制方法和系统 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2093167A5 (fr) * | 1970-06-04 | 1972-01-28 | Saviem | |
DE2637149A1 (de) * | 1976-08-18 | 1978-02-23 | Continental Gummi Werke Ag | Zwillingsrad fuer strassenfahrzeuge |
FR2464153A1 (fr) * | 1979-08-27 | 1981-03-06 | Fox F | Dispositif d'adaptation pour transformer sur un vehicule le montage d'une roue simple en roue jumelee |
US4373738A (en) * | 1980-04-28 | 1983-02-15 | Lange Dennis M | Steerable auxiliary wheel assembly for vehicles |
US6148940A (en) * | 1997-09-04 | 2000-11-21 | General Electric Company | AC motorized wheel arrangement |
WO2000071365A1 (fr) * | 1999-05-25 | 2000-11-30 | Societe De Technologie Michelin | Ensemble de montage d'un pneumatique sur un moyeu |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS51149981A (en) | 1975-06-17 | 1976-12-23 | Shikibo Ltd | Method of benzoilation of cellulose fiber |
US4359116A (en) * | 1980-01-21 | 1982-11-16 | Standard Manufacturing Company, Incorporated | Ground pressure reducing undercarriage unit |
US5066426A (en) * | 1981-02-17 | 1991-11-19 | Abbott Laboratories | Fluorescence polarization immunoassay utilizing substituted carboxyfluoresceins |
US4952691A (en) * | 1981-12-11 | 1990-08-28 | Abbott Laboratories | Fluorescence polarization immunoassay |
US5139103A (en) * | 1989-04-13 | 1992-08-18 | Ducote Edgar A | Remote steering of on-highway vehicles |
JPH0369584U (fr) * | 1989-11-10 | 1991-07-10 | ||
US5103740A (en) * | 1990-02-28 | 1992-04-14 | Masse Kenneth J | Vehicle for road and rail operation with air suspension for adjusting weight on both the road wheels and rail wheels |
US5289905A (en) * | 1990-09-13 | 1994-03-01 | Parmac, Inc. | Hydrodynamic retarder for large off-road electric wheel driven vehicles |
US5088570A (en) * | 1991-02-04 | 1992-02-18 | Terex Corporation | Steerable rear dual axle system for large trucks |
US5630625A (en) * | 1993-04-23 | 1997-05-20 | Shaw; Donald W. | Tank truck |
JP3645394B2 (ja) * | 1997-03-12 | 2005-05-11 | 日立建機株式会社 | タイヤローラ |
US6021719A (en) * | 1997-11-10 | 2000-02-08 | Kershaw, Jr.; Royce G. | Mobile track vehicle |
KR100354904B1 (ko) * | 1998-05-19 | 2002-12-26 | 삼성전자 주식회사 | 광시야각액정표시장치 |
JP3759681B2 (ja) * | 1998-12-25 | 2006-03-29 | 日野自動車株式会社 | 後輪操舵装置 |
JP4512288B2 (ja) * | 2001-05-15 | 2010-07-28 | プレス工業株式会社 | 車軸リフト機構付き車両 |
US6672985B2 (en) * | 2001-08-30 | 2004-01-06 | Axletech International Ip Holdings, Llc | Independently rotating wheels with planetary drive |
US6913460B2 (en) * | 2002-06-12 | 2005-07-05 | 3M Innovative Properties Company | Coupling for orthodontic assembly |
US7134829B2 (en) * | 2004-03-09 | 2006-11-14 | Absolute Electronic Solutions, Inc. | Cargo trailer |
-
2004
- 2004-07-12 CA CA2532015A patent/CA2532015C/fr not_active Expired - Fee Related
- 2004-07-12 WO PCT/EP2004/007659 patent/WO2005016732A1/fr active Application Filing
- 2004-07-12 CN CN200480020441.2A patent/CN1822982B/zh not_active Expired - Fee Related
- 2004-07-12 JP JP2006519847A patent/JP4975434B2/ja not_active Expired - Fee Related
-
2006
- 2006-01-11 US US11/329,486 patent/US7635038B2/en not_active Expired - Fee Related
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2093167A5 (fr) * | 1970-06-04 | 1972-01-28 | Saviem | |
DE2637149A1 (de) * | 1976-08-18 | 1978-02-23 | Continental Gummi Werke Ag | Zwillingsrad fuer strassenfahrzeuge |
FR2464153A1 (fr) * | 1979-08-27 | 1981-03-06 | Fox F | Dispositif d'adaptation pour transformer sur un vehicule le montage d'une roue simple en roue jumelee |
US4373738A (en) * | 1980-04-28 | 1983-02-15 | Lange Dennis M | Steerable auxiliary wheel assembly for vehicles |
US6148940A (en) * | 1997-09-04 | 2000-11-21 | General Electric Company | AC motorized wheel arrangement |
WO2000071365A1 (fr) * | 1999-05-25 | 2000-11-30 | Societe De Technologie Michelin | Ensemble de montage d'un pneumatique sur un moyeu |
Non-Patent Citations (1)
Title |
---|
"Caterpillar 797B Mining Truck Specifications", December 2003, CATERPILLAR, USA, XP002301348 * |
Also Published As
Publication number | Publication date |
---|---|
US7635038B2 (en) | 2009-12-22 |
CA2532015A1 (fr) | 2005-02-24 |
JP4975434B2 (ja) | 2012-07-11 |
JP2009513414A (ja) | 2009-04-02 |
CN1822982B (zh) | 2011-10-12 |
US20060113123A1 (en) | 2006-06-01 |
CA2532015C (fr) | 2012-07-03 |
CN1822982A (zh) | 2006-08-23 |
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