[go: up one dir, main page]

WO1990013450A1 - Dispositif dispose dans des camions - Google Patents

Dispositif dispose dans des camions Download PDF

Info

Publication number
WO1990013450A1
WO1990013450A1 PCT/SE1990/000307 SE9000307W WO9013450A1 WO 1990013450 A1 WO1990013450 A1 WO 1990013450A1 SE 9000307 W SE9000307 W SE 9000307W WO 9013450 A1 WO9013450 A1 WO 9013450A1
Authority
WO
WIPO (PCT)
Prior art keywords
power
stabilizer
movement generator
movement
vehicle
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/SE1990/000307
Other languages
English (en)
Inventor
Håkan BLOMQVIST
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.)
ZETTERBERGS INDUSTRI AB
Original Assignee
ZETTERBERGS INDUSTRI AB
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 ZETTERBERGS INDUSTRI AB filed Critical ZETTERBERGS INDUSTRI AB
Publication of WO1990013450A1 publication Critical patent/WO1990013450A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
    • B60G17/02—Spring characteristics, e.g. mechanical springs and mechanical adjusting means
    • B60G17/027—Mechanical springs regulated by fluid means
    • B60G17/0275—Mechanical springs regulated by fluid means the mechanical spring being a leaf spring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G5/00—Resilient suspensions for a set of tandem wheels or axles having interrelated movements
    • B60G5/04—Resilient suspensions for a set of tandem wheels or axles having interrelated movements with two or more pivoted arms, the movements of which are resiliently interrelated, e.g. the arms being rigid
    • B60G5/053—Resilient suspensions for a set of tandem wheels or axles having interrelated movements with two or more pivoted arms, the movements of which are resiliently interrelated, e.g. the arms being rigid a leafspring being used as equilibration unit between two axle-supporting units
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
    • B60G2202/40—Type of actuator
    • B60G2202/41—Fluid actuator
    • B60G2202/413—Hydraulic actuator
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
    • B60G2204/80—Interactive suspensions; arrangement affecting more than one suspension unit
    • B60G2204/82—Interactive suspensions; arrangement affecting more than one suspension unit left and right unit on same axle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2300/00—Indexing codes relating to the type of vehicle
    • B60G2300/02—Trucks; Load vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2500/00—Indexing codes relating to the regulated action or device
    • B60G2500/30—Height or ground clearance
    • B60G2500/32—Height or ground clearance of only one vehicle part or side
    • B60G2500/324—Height or ground clearance of only one vehicle part or side only rear part
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2500/00—Indexing codes relating to the regulated action or device
    • B60G2500/30—Height or ground clearance
    • B60G2500/32—Height or ground clearance of only one vehicle part or side
    • B60G2500/326—Height or ground clearance of only one vehicle part or side only left or right side
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2800/00—Indexing codes relating to the type of movement or to the condition of the vehicle and to the end result to be achieved by the control action
    • B60G2800/01—Attitude or posture control
    • B60G2800/014—Pitch; Nose dive

Definitions

  • the invention relates to a device on lorries with rear axles arranged in the form of a bogie, said device being intended for axle pressure equalization and stabilization.
  • a bogie with all wheels driven presents obvious advantages, which has induced manufacturers of vehicles to give priority to such designs. It has, however, been established that under the circumstances prevailing on Swedish roads and under working conditions prevailing in Sweden, which in international comparison may be considered to be generally efficient and requiring little labour, that vehicles with two driven rear-axles arranged in a bogie without any possibilities for axle pressure equalization (transfer of part of the axle load on one axle of a bogie to the other axle) often have a tendency to tilt in con- nection with driving on roads of less good quality and in connection with tipping. In connection with tipping, the drivers of such vehicles have experienced a lack of stability of the vehicle, which has involved reduced efficiency of work or alternatively inadequate risks. It is one purpose of this invention to eliminate or at least to reduce these disadvantages on lorries with double driven rear axles arranged in the form of a bogie.
  • German paper of disclosure describes a device including a conven ⁇ tional U-shaped stabilizer, which by means of an intermediary axis can be adjusted in different positions. By means of an adequate displace ⁇ ment of the intermediary axis, the function of the stabilizer can be adapted to different conditions of load or speed of the vehicle.
  • the device in question involves an intermediary axis and means for the displacement of the intermediary axis. This device has the disadvan ⁇ tage that it involves a plurality of components and thus is rather expensive and complicated.
  • the device is mainly intended for motor cars.
  • a device which includes a funtion of transfer of axle load in combination with a U-shaped bow, which has a stabilizing function.
  • the transfer of axle load in such a way that one pair of wheels takes all the axle load and the other pair of wheels is lifted from the ground, is carried out by the device according to the US-patent in order to introduce a spring suspension between the pair of wheels carrying the load and the chassis of the vehicle.
  • This is achieved by means of a bar, which is rotatable and arranged transverse in relation to the chassis, which bar has its ends provided with arms parallel to each other and perpendicular to the bar, which arms press down the front end or the rear end of the bogies.
  • an arm perpendicular to the bar is provided, which is connected to a pressure cylinder, which permits the bar to be pivoted in such a way that the perpendicular arms will press down the bogies and one pair of wheels is lifted from the ground.
  • the spring action is obtained by means of a gas receptacle, functioning as a gas spring, connected to the pressure side of the hydralic cylinder.
  • the transversal bar with perpendicular arms has in this connection a stabilizing function.
  • the device according to the US-patent No. 4,324,417 has the disadvan ⁇ tage that it cannot be used together with vehicles with spring sus ⁇ pended rear axles arranged in the form of a bogie in order to stabi- lize a vehicle with a tipping device for tipping e.g. gravel. Further ⁇ more, the device is comparatively space consuming due to the gas receptacle, which also contributes to making the device more compli ⁇ cated and expensive in connection with aquisition and maintenance.
  • the device according to the said US-patent furthermore has the disad- vantage that the lowering of the wheels must be equal on both sides of the vehicle.
  • the device cannot be used to level the chassis in order to stabilize the vehicle.
  • the purpose of the invention is to provide a device with improved general stability, specially for lorries with bogies with four driven wheels, in combination with tilt stabilization, as well as the possi ⁇ bility of axle pressure equalization.
  • the device according to the invention which is characterized by, in combination, at least one power and movement generator, a stabilizer between the spring sus ⁇ pended and the non-resilient system of the vehicle and connected to one of the spring suspended bogie-axles of the vehicle, power trans- mission means firmly connected to the stabilizer between the stabi ⁇ lizer and the power and movement generator and means for connecting and disconnecting, as required, said at least one power and movement generator to and from the stabilizer, said at least one power and movement generator being arranged to influence the position of at least one of the rear axles, and the chassis of the vehicle, respec ⁇ tively, via said power transmission means.
  • Fig. 1 shows a side view of a lorry with two driven rear wheel axles arranged in the form of a bogie, and a device according to the present invention mounted on the lorry;
  • ⁇ ⁇ Fig. 2 shows a top view of the lorry shown in Fig. 1 with the device according to the present invention mounted on it;
  • Fig. 3 shows a perspective view of a device according to the inven- tion mounted on a lorry
  • Fig. 4 shows a alternative arrangement of the power transmission from the power and movement generator
  • Fig. 5 shows another alternative arrangement of the power trans ⁇ mission.
  • a lorry with a device according to the invention is shown in Fig. 1-4.
  • the device consists of a transversal cylindrical bar 2, which is pivotably supported by two bearings 5a, 5b.
  • the ends of the bar 2 are firmly connected to two arms 3a, 3b, which are parallel to each other, each arm being pivotably connected via a link 6a, 6b to the non- resilient system 8, which includes the utmost rear axle of the lorry.
  • the differential and axles including wheels and tyres are in this connection considered as the non-resilient system.
  • This non-resilient system is spring connected to the chassis, which is considered as the spring supported system, by means of a plate spring package.
  • Each one of the links 6a, 6b is pivotably connected to ear shaped holders 7a, 7b, which holders are firmly connected to the non- resilient system consisting of the utmost rear axle.
  • the device con ⁇ sisting of the bar 2, the arms 3a, 3b, the bearings 5a, 5b and the links 6a, 6b forms a non-disconnectable stabilizer with sides, which are pivotably connected to each other, the stabilizer acting upon the non-resilient system as well as upon the spring supported system with forces, which tend to keep the wheel axle parallel to e.g. a plane defined by the upper flanges of the beams of the frame. Side tilting is counter-acted by means of said stabilizer.
  • the device according to the invention includes, apart from the stabi ⁇ lizer, also a device working in combination with the stabilizer and intended to further stabilize the lorry.
  • the bar 2 is thus provided with two additional arms 4a, 4b, which are parallel to each other and perpendicular to the bar 2, to which they are firmly fastened.
  • the arms 3a, 3b are fixed at the ends of the bar 2 and are thus placed outside the longitudinal beams of the chassis frame.
  • the arms 4a, 4b are, however, placed on the bar 2 in such a way that they are located between the longitudinal beams of the frame, the left arm being preferably placed as close as possible to the left beam and the right arm being placed as close as possible to the right beam.
  • the device also includes two hydraulic cylinders la, lb, which preferably are mounted on the inside of the vertical parts of the longitudinal beams.
  • the cylinders la, lb are placed in such a way that the pistons of the cylinders, when they are moved outwards and backwards, will act on the end portions of the arms 4a, 4b in such a way that said end portions also will move backwards, and the arms 3a, 3b will move up ⁇ wards lifting the rearmost axle.
  • a precondition is that the arms 3a, 3b point forwards and that they are approximately horizontal when there is a normal load on the vehicle.
  • the arms 4a, 4b are fastened on the bar 2 in such a way that they are mainly vertical or somewhat inclined forwards, e.g. 10-20° when there is a normal load on the vehicle.
  • the rear axle of the bogie can thus be lifted if the bar 2 is influenced by the hydraulic cylinders la, lb.
  • both hydraulic cylinders la, lb in the same degree, with both cylinders synchronized, or with one of the cylinders either la or lb, or with one of the cylinders in a higher degree than the other.
  • the rearmost axle of the bogie will be lifted in the same degree on both sides.
  • one side of the rearmost axle will be lifted.
  • the cylinders la, lb can be manoeuvred by the driver by means of valves which can be located in the driver's cabin or at any other suitable place.
  • both cylinders la, lb can be replaced by only one cylin ⁇ der, which in this case can be located in the centre of the chassis to act on an upstanding arm at the centre of the bar 2. In this case, it is, however, not possible to achieve a redistribution of the kind described above working individually with one of the cylinders.
  • the arms 4a, 4b have been pro ⁇ vided with a pin 10, and the piston rods of the cylinders have been provided with long holes, eyes or similar long hole means 11.
  • the cylinders la, lb are activated in such a way that the piston rods are pressed backwards and the rear axle of the bogie is lifted.
  • the interaction of the cylinders la, lb and the arms 4a, 4b can also be arranged as shown in the embodiment according to Fig. 5, the arms 4a, 4b and the cylinders la, lb being linked together by means of an articulated connection.
  • the cylinders la, lb can then be intercon ⁇ nected and a damping function can be introduced by means of overflow and strangulation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

L'invention concerne un dispositif disposé dans des camions munis d'essieux suspendus sur ressorts aménagés sous forme de bogie, ledit dispositif ayant pour but la stabilisation et la compensation de la pression de l'essieu. Le dispositif comprend, en combinaison, au moins un générateur d'énergie et de mouvement (1a, 1b), un stabilisateur monté entre le système suspendu sur ressorts du véhicule et le système non résilient, des moyens de transmission d'énergie (3a, 3b, 4a, 4b) placés entre lesdits systèmes pour transmettre des forces entre ceux-ci, ainsi que des moyens pour relier au stabilisateur ou séparer de celui-ci au moins un générateur d'énergie et de mouvement. Ce générateur lorsqu'il est relié au stabilisateur est aménagé, directement ou indirectement, de manière à influencer la position d'au moins un essieu arrière ainsi que celle du châssis du véhicule.
PCT/SE1990/000307 1989-05-12 1990-05-10 Dispositif dispose dans des camions Ceased WO1990013450A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8901746A SE464398B (sv) 1989-05-12 1989-05-12 Anordning vid lastbilar
SE8901746-1 1989-05-12

Publications (1)

Publication Number Publication Date
WO1990013450A1 true WO1990013450A1 (fr) 1990-11-15

Family

ID=20375957

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1990/000307 Ceased WO1990013450A1 (fr) 1989-05-12 1990-05-10 Dispositif dispose dans des camions

Country Status (3)

Country Link
AU (1) AU5669590A (fr)
SE (1) SE464398B (fr)
WO (1) WO1990013450A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992022438A1 (fr) * 1991-06-10 1992-12-23 Detroit Steel Products Co Inc. Systeme de suspension pour vehicules
WO2008054265A1 (fr) 2006-11-01 2008-05-08 Volvo Lastvagnar Ab Dispositif de stabilisation pour véhicule lourd

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2800549A1 (de) * 1978-01-07 1979-07-12 Volkswagenwerk Ag Im niveau geregeltes kraftfahrzeug
US4324417A (en) * 1979-04-23 1982-04-13 Volvo Bm Ab Vehicle with bogie-mounted wheels and raising device for a pair of wheels

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2800549A1 (de) * 1978-01-07 1979-07-12 Volkswagenwerk Ag Im niveau geregeltes kraftfahrzeug
US4324417A (en) * 1979-04-23 1982-04-13 Volvo Bm Ab Vehicle with bogie-mounted wheels and raising device for a pair of wheels

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992022438A1 (fr) * 1991-06-10 1992-12-23 Detroit Steel Products Co Inc. Systeme de suspension pour vehicules
US5507516A (en) * 1991-06-10 1996-04-16 Detroit Steel Products, Inc. Vehicle suspension
WO2008054265A1 (fr) 2006-11-01 2008-05-08 Volvo Lastvagnar Ab Dispositif de stabilisation pour véhicule lourd
EP2081784A4 (fr) * 2006-11-01 2010-01-20 Volvo Lastvagnar Ab Dispositif de stabilisation pour véhicule lourd
US7934733B2 (en) 2006-11-01 2011-05-03 Volvo Lastvasgnar AB Stabilizing device for a heavy vehicle

Also Published As

Publication number Publication date
SE8901746D0 (sv) 1989-05-12
AU5669590A (en) 1990-11-29
SE8901746L (sv) 1990-11-13
SE464398B (sv) 1991-04-22

Similar Documents

Publication Publication Date Title
CA2247324C (fr) Suspension a tringlerie
US4144978A (en) Suspension systems for vehicles
US5039124A (en) Motor vehicle frame and suspension assembly
KR101072793B1 (ko) 차축 클램프 조립체 탑 패드와 에어 스프링 설치 조립체
US7077408B2 (en) Stabilizing air suspension system
US20100102532A1 (en) Articulated dump truck
US10683046B2 (en) Tandem lift auxiliary axle assembly
EP0545996A1 (fr) Systeme de suspension et caisse pour camion de grande taille a benne basculante
US5330222A (en) Frame isolator for terminal tractor
US5018593A (en) High lift tag axle for trucks
US5228718A (en) Air bag and walking beam construction
US4714269A (en) Wide base type suspension assembly with parallelogram torque beams and four air springs
CA1283674C (fr) Systeme a essieux d'appoint pour adaptation en fonction d'une masse portee
US4596402A (en) Wide base air spring suspension with unitized parallelogram stabilization
US7111862B1 (en) Unitized fifth wheel and rear axle suspension
EP0991560B1 (fr) Dispositif de soulevement de l'essieu d'un vehicule
US20030102645A1 (en) Arrangement for wheel suspension
WO1990013450A1 (fr) Dispositif dispose dans des camions
CN116373527B (zh) 一种空气弹簧平衡悬架系统
EP0852543B1 (fr) Structure d'essieu de vehicule
US20070069495A1 (en) Air suspension system for use on a motor vehicle
EP0472309B1 (fr) Suspensions pneumatiques pour véhicules
GB2225986A (en) Vehicle suspension
WO1998042556A1 (fr) Bogie pour rails ameliore et materiel associe
GB1574740A (en) Suspension systems for vehicles

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AT AU BB BG BR CA CH DE DK ES FI GB HU JP KP KR LK LU MC MG MW NL NO RO SD SE SU US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE BF BJ CF CG CH CM DE DK ES FR GA GB IT LU ML MR NL SE SN TD TG

NENP Non-entry into the national phase

Ref country code: CA