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WO2025203133A1 - Train de roulement à chenilles pour véhicule - Google Patents

Train de roulement à chenilles pour véhicule

Info

Publication number
WO2025203133A1
WO2025203133A1 PCT/IS2025/050004 IS2025050004W WO2025203133A1 WO 2025203133 A1 WO2025203133 A1 WO 2025203133A1 IS 2025050004 W IS2025050004 W IS 2025050004W WO 2025203133 A1 WO2025203133 A1 WO 2025203133A1
Authority
WO
WIPO (PCT)
Prior art keywords
belt
crawler
pivotal
crawler unit
arm
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.)
Pending
Application number
PCT/IS2025/050004
Other languages
English (en)
Inventor
Bjarki V. WAAGE
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of WO2025203133A1 publication Critical patent/WO2025203133A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D55/00—Endless track vehicles
    • B62D55/08—Endless track units; Parts thereof
    • B62D55/10—Bogies; Frames
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D55/00—Endless track vehicles
    • B62D55/04—Endless track vehicles with tracks and alternative ground wheels, e.g. changeable from endless track vehicle into wheeled vehicle and vice versa
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D55/00—Endless track vehicles
    • B62D55/08—Endless track units; Parts thereof
    • B62D55/084—Endless-track units or carriages mounted separably, adjustably or extensibly on vehicles, e.g. portable track units
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D55/00—Endless track vehicles
    • B62D55/08—Endless track units; Parts thereof
    • B62D55/104—Suspension devices for wheels, rollers, bogies or frames
    • B62D55/112—Suspension devices for wheels, rollers, bogies or frames with fluid springs, e.g. hydraulic pneumatic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D55/00—Endless track vehicles
    • B62D55/08—Endless track units; Parts thereof
    • B62D55/30—Track-tensioning means

Definitions

  • the invention relates to a belt-crawler undercarriage to be arranged under a vehicle with at least one shape changeable belt crawler unit. Furthermore, the invention relates to a drivetrain adapted to operate with shape changeable belt crawler units under a vehicle.
  • Belt crawlers or track belts are known in the art and are used for various types of vehicles for traversing difficult terrain.
  • Belt crawlers are particularly common in off-road vehicles, construction machinery, agricultural equipment, military vehicles, and specialized vehicles used in exploration or scientific research.
  • Belt crawler units work by providing a continuous surface area for gripping the ground and allowing vehicles with track belts to move across various terrains.
  • Such belt crawler units provide vehicles with enhanced traction, stability, and manoeuvrability in a wide range of terrains, which makes them well-suited for applications such as off-road vehicles, construction machinery, agricultural equipment, and military vehicles.
  • belt crawler units comprise a series of interconnected links or segments that form a continuous loop or belt around a set of wheels or sprockets for continuous traction across a terrain.
  • the belt is wrapped around the belt wheels or sprockets which creates a continuous surface making contact with the ground enabling constant traction on the terrain.
  • Belt crawler units provide good weight distribution of a vehicle over a larger surface area compared to wheeled vehicles, which helps to reduce ground pressure and preventing the vehicle from sinking into soft soil or mud and minimizing soil compaction.
  • belt crawler units provide flexibility and adaptability as they can conform to the shape of the terrain, allowing vehicles to traverse obstacles such as rocks, tree roots, and uneven surfaces more easily than wheeled vehicles.
  • US 5,287,938 discloses vehicle for on-and off-road use comprising a belt track unit mounted under the vehicle frame between front and rear wheels.
  • the belt track unit has auxiliary frames with continuous tracks on carrier wheels where each auxiliary frame is independently vertically displaceable relative to the vehicle frame by means of corresponding lifting cylinders between a fully retracted position for travel on wheels only, and a fully extended position for tracks only travel.
  • US2017001671 discloses continuous track assembly having forward and rearward track engaging wheels with an intermediate track engaging wheel position between them and a continuous track extending over the wheels.
  • a foldable frame is arranged to change the position of the wheels between a linear position and a triangular configuration in a synchronized movement of front and rear wheel arms and a retracting actuator.
  • the present invention provides a belt crawler unit, which may be used alone or as one of a plurality of belt crawler units in a belt-crawler undercarriage to be arranged underneath and operated with all-terrain vehicles when needed or desired. .
  • the belt crawler unit of the present invention is adapted for multi-shape change during operation, where the tension on the crawler belt is maintained during change from one shape to another so that the crawler belt will not fall off the frame.
  • the belt crawler unit is based on movable frame arms, at least one central wheel attached to the chassis or the undercarriage of the vehicle and a plurality of belt wheels arranged on the frame arms.
  • front and rear wheels are connected to front and rear pivotal frame arms, which may be lowered to change the shape of the belt crawler unit from a linear shape to a triangular shape and thereby engage with the terrain underneath the vehicle.
  • the belt crawler unit When the belt-crawler unit is not in use or in a resting position, the belt crawler unit has a linear shape under the vehicle. However, during operation the front and/or rear wheels of the crawler unit(s) are lowered by a radial movement of the front and rear pivotal frame arms changing the shape of the belt crawler unit.
  • the belt crawler unit may also comprise further frame components, such as a longitudinal telescopic connection arm connecting the front and the rear wheel. These variation are shown and further outlined in figure 1.
  • actuator relates to devices such as telescopic devices or torque devices, which activate, regulate or facilitate movement of components of the belt crawler unit of the present invention, such as frame arms.
  • the adjustment of the length of the front and/or the rear pivotal frame arms by the length adjuster maintains a set or a constant tension on the crawler belt during a shape change of the belt crawler unit.
  • the adjustment of the length of the front and/or the rear pivotal frame arms by the length adjuster maintains the tension on the crawler belt above a set value during a shape change of the belt crawler unit.
  • the adjustment of the length of the front and/or the rear pivotal frame arms by the length adjuster maintains the tension on the crawler belt within a predetermined range during a shape change of the belt crawler unit.
  • the central frame portion is positioned between proximal ends of the front pivotal frame arm and/or the rear pivotal frame arm.
  • the central frame portion is attached to the chassis of the vehicle.
  • first axial joint and/or the second axial joint are pivot joints.
  • first axial joint and/or the second axial joint are configured to be fixed to the chassis of said vehicle.
  • first axial joint and/or the second axial joint are configured to be fixed to the central frame portion.
  • first axial joint and/or the second axial joint are
  • the central frame portion further comprises a movable connection (axial joint) for facilitating the pivotal movement of the front pivotal frame arm and/or the rear pivotal frame arm.
  • the axial joint of the central portion to the front and/or rear pivotal frame arms comprises a hinge-connection.
  • the length adjuster of the front and/or rear pivotal frame arms further comprises a telescopic length adjuster, such as a telescopic beam.
  • the length adjuster of the front and/or rear pivotal frame arms further comprises a suspension device.
  • the front pivotal frame arm and/or the rear pivotal frame arm comprises a main portion and an extension portion.
  • front and/or rear pivotal frame arms comprise an A-frame main portion.
  • the main portion of the front and/or rear pivotal frame arms comprises an A-frame main portion.
  • front and/or rear pivotal frame arms comprise a frame structure with three-point connection properties. In an embodiment of the present invention the front and/or rear pivotal frame arms comprise a longitudinal frame portion.
  • the longitudinal frame portions of the front and/or rear pivotal frame arms further comprise the length adjuster for adjusting the length of the front and/or rear pivotal frame arms.
  • the longitudinal frame portions of the front and/or rear pivotal frame arms are rotationally, pivotally or movably arranged, connected or secured to the A-frame main portion of the front and/or rear pivotal frame arms.
  • the extension portion of the front and/or rear pivotal frame arms is uniformly formed with the main portion of the front and/or rear pivotal frame arms.
  • front and/or rear pivotal frame arms comprise a torque arm.
  • the frame further comprises a length adjustable connection arm connected to the distal ends of the front and rear pivotal frame arms.
  • the length adjustable connection arm comprises a length adjuster for adjusting the length of the length adjustable connection arm to maintain tension on the crawler belt during a shape change of the belt crawler unit.
  • the length adjustable connection arm is pivotally connected to the distal ends of the front and/or rear pivotal frame arms through a front and rear axial joints.
  • the at least one central wheel is in a fixed position in relation to chassis of the vehicle.
  • the at least one central wheel is in a fixed position between the first and second axial joints.
  • the at least one central wheel is statically arranged between the proximal end of the centrally connected the front and/or rear pivotal frame arms.
  • the front wheel is arranged at the distal end of the front pivotal frame arm.
  • the front wheel is movable with respect to the chassis.
  • the front wheel is adapted for a pivotal downward movement of the front pivotal frame arm. In an embodiment of the present invention the front wheel is adapted for a pivotal downward movement of the front pivotal frame arm through actuation of the front pivotal actuator.
  • the rear wheel is arranged at the distal end of the rear pivotal frame arm.
  • the rear wheel is adapted for a pivotal downward movement by the rear pivotal frame arm.
  • the rear wheel is adapted for a pivotal downward movement by the rear pivotal frame arm through actuation of the pivotal actuator.
  • the front pivotal frame arm and the length adjustable connection arm are connected by the front wheel through a front axial joint.
  • the front axial joint is a parallel connection through the front pivotal frame arm and longitudinal telescopic connection arm.
  • the parallel connection through the front pivotal frame arm and the length adjustable connection arm comprises an axle or a bearing.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

La présente invention concerne un train de roulement à chenilles pour véhicules tout terrain comprenant au moins une unité chenille à forme variable disposée sous le véhicule pour être actionnée avec le véhicule lorsque cela est nécessaire ou souhaité. Le train de roulement à chenilles de forme variable peut être maintenu dans une forme linéaire sous le véhicule lorsqu'il n'est pas utilisé ou dans une position de repos, mais pendant le fonctionnement, les roues avant et arrière desdites unités chenille à courroie sont abaissées par un mouvement radial de composants de châssis individuels formant une nappe d'armature de forme triangulaire.
PCT/IS2025/050004 2024-03-26 2025-03-26 Train de roulement à chenilles pour véhicule Pending WO2025203133A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IS9193 2024-03-26
IS9193 2024-03-26

Publications (1)

Publication Number Publication Date
WO2025203133A1 true WO2025203133A1 (fr) 2025-10-02

Family

ID=95605623

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IS2025/050004 Pending WO2025203133A1 (fr) 2024-03-26 2025-03-26 Train de roulement à chenilles pour véhicule

Country Status (1)

Country Link
WO (1) WO2025203133A1 (fr)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1875870U (de) * 1963-04-05 1963-07-18 Karl-Heinz Kehr Lastkraftwagen, insbesondere baustellenlastkraftwagen.
DE4033147A1 (de) * 1990-10-03 1992-04-23 Jung Soo Cheol Mehrzweck-zusatzraupenfahrwerk fuer kraftfahrzeuge
US5287938A (en) 1989-08-25 1994-02-22 Verenigde Bedrijven Van Den Berg Heerenveen Holding B.V. Vehicle suitable for on- and off-road use
US6422576B1 (en) * 1997-10-29 2002-07-23 Galileo Mobility Instruments Ltd. Transport mechanism
US20080061627A1 (en) * 2001-10-03 2008-03-13 Galileo Mobility Instruments Ltd. Adaptable traction system of a vehicle
US20170001671A1 (en) 2015-06-30 2017-01-05 Cnh Industrial America Llc Variable geometry continuous track
CN110588813A (zh) * 2019-10-21 2019-12-20 庄锦程 易调整形状的履带行进装置
US20210253185A1 (en) * 2018-09-07 2021-08-19 Soucy International Inc. Track system

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1875870U (de) * 1963-04-05 1963-07-18 Karl-Heinz Kehr Lastkraftwagen, insbesondere baustellenlastkraftwagen.
US5287938A (en) 1989-08-25 1994-02-22 Verenigde Bedrijven Van Den Berg Heerenveen Holding B.V. Vehicle suitable for on- and off-road use
DE4033147A1 (de) * 1990-10-03 1992-04-23 Jung Soo Cheol Mehrzweck-zusatzraupenfahrwerk fuer kraftfahrzeuge
US6422576B1 (en) * 1997-10-29 2002-07-23 Galileo Mobility Instruments Ltd. Transport mechanism
US20080061627A1 (en) * 2001-10-03 2008-03-13 Galileo Mobility Instruments Ltd. Adaptable traction system of a vehicle
US20170001671A1 (en) 2015-06-30 2017-01-05 Cnh Industrial America Llc Variable geometry continuous track
US20210253185A1 (en) * 2018-09-07 2021-08-19 Soucy International Inc. Track system
CN110588813A (zh) * 2019-10-21 2019-12-20 庄锦程 易调整形状的履带行进装置

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