WO1998040264A1 - Systeme de transmission pour machine de travaux entrainee par courroie - Google Patents

Systeme de transmission pour machine de travaux entrainee par courroie Download PDF

Info

Publication number
WO1998040264A1
WO1998040264A1 PCT/US1998/001919 US9801919W WO9840264A1 WO 1998040264 A1 WO1998040264 A1 WO 1998040264A1 US 9801919 W US9801919 W US 9801919W WO 9840264 A1 WO9840264 A1 WO 9840264A1
Authority
WO
WIPO (PCT)
Prior art keywords
work machine
hardbar
frame
pair
end portion
Prior art date
Application number
PCT/US1998/001919
Other languages
English (en)
Inventor
Ronald L. Satzler
Original Assignee
Caterpillar Inc.
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 Caterpillar Inc. filed Critical Caterpillar Inc.
Priority to AU62607/98A priority Critical patent/AU6260798A/en
Publication of WO1998040264A1 publication Critical patent/WO1998040264A1/fr

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
    • B62D55/084—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

Definitions

  • This invention relates generally to a work machine being driven by a rubber belted track and more particularly to a system for driving the rubber belted track.
  • a work machine has opposite sides and is comprised of a frame defining a front portion and a rear portion.
  • An engine is positioned on the frame.
  • a roller frame is connected at each of the opposite sides of the work machine.
  • the roller frame includes a main support member having an idler wheel positioned near an end and a drive wheel positioned near the other end.
  • a front hardbar is positioned on each of the opposite sides of the work machine.
  • the front hardbar has a first end portion attached to the frame near the front portion and a second end portion is connected to a respective one of the roller frames.
  • a rear hardbar is positioned on each of the opposite sides of the work machine.
  • the rear hardbar has a first end portion attached to the frame near the rear portion, and a second end portion is connected to a respective one of the pair of roller frames.
  • a pair of tracks is individually positioned on each opposite side of the work machine and defines a pair of sides. The individual track is entrained about the respective roller frame.
  • the roller frame is positioned within the pair of sides.
  • a tensioning system is operatively interposed the idler wheel and the drive wheel.
  • a final drive is attached to a respective roller frame and is operatively attached to the drive wheel.
  • a transmission system is operatively interposed the engine and the final drive.
  • the transmission system includes a telescoping connector.
  • a work machine in another aspect of the invention, includes a main frame defining a front portion and a rear portion and having a pair of opposite sides.
  • the work machine is comprised of a roller frame positioned on each of the opposite sides of the work machine.
  • the roller frame integrally includes a main support member having an idler wheel positioned at one end and a drive wheel positioned at another end.
  • a final drive includes a housing supported on the roller frame, a gear positioned within the housing and defining an input portion and an output portion. The output portion is in operational driving relationship with the drive wheel.
  • a propulsion system includes an engine positioned on the front portion of the main frame, a transmission system and a power transmitting device operatively connected between the transmission system and the input portion of the gear.
  • a pair of spaced apart hardbars are positioned on each of the opposite sides of the work machine. Each has a first end portion attached to the main frame. One of the pair of spaced apart hardbars is attached near said front portion and the other of the pair of spaced apart hardbars is attached near the rear portion. And, a second end portion is connected to the main support structure of the roller frame.
  • FIG. 1 is a side elevational view of the belt driven work machine embodying the present invention
  • FIG. 2 is a partially-sectioned top elevational view of the belt driven work machine embodying the present invention
  • FIG. 3 is a top elevational view of the belt driven work machine embodying the present invention.
  • FIG. 4 is an enlarged sectioned top elevational view of a portion of the belt driven work machine embodying the present invention.
  • a work machine 10 such as an agricultural tractor, is shown having a rubber belted track system 12.
  • the rubber belted track system 12 utilizes a pair of endless rubber belted tracks 14, each having an inner surface 16 and a pair of sides 18.
  • Each of the pair of belted tracks 14 is positioned on one of the opposite sides 20 of the work machine 10.
  • the work machine 10 includes a main frame 22 having a central axis 24 extending between the pair of endless rubber belted tracks 14.
  • the main frame 22 defines a front portion 26 and a rear portion 28.
  • An operator's station 30 is supported on the main frame 22 and is surrounded by a cab 32, a propulsion system 34 including an engine 36 and a transmission system 38 which has at least a portion thereof supported on the main frame 22.
  • Attached to the main frame 22 along the rear portion 28 is a hitch 50.
  • the hitch 50 includes a 3- point configuration and is pivotally mounted to the main frame 22. For example, the hitch 50 moves through an arch of about 15 degrees on either side of the central axis 24.
  • the transmission system 38 includes a mechanical drive system 64 utilizing a differential steering mechanism 66.
  • the transmission system 38 could use a pair of motors being driven by either a conventional hydraulic arrangement or an electrical arrangement. If the hydraulic arrangement was used, either a single pump or a pair of pumps could be used.
  • the differential steering mechanism 66 transmits power from the engine 36 to a final drive 68 supported on a roller frame 70 within each of the pair of endless belted tracks 14, as will be defined later.
  • the main frame 22 in this application includes a two piece structure being defined by a first structure 80 and a second structure 82.
  • the first structure 80 has a first end portion 84 and a second end portion 86.
  • the engine 36 is mounted near the first end portion 84.
  • the second structure 82 defines a first end portion 100 and a second end portion 102.
  • the hitch 50 is attached to the second structure 82 near the second end portion 102.
  • the roller frame 70 is of generally conventional construction.
  • a main support member 110 is positioned between an idler wheel 112 and a drive wheel 114 along a roller frame axis 116.
  • the roller frame axis 116 is parallel with the central axis 24.
  • Attached near a bottom 118 of the main support member 110 in a convention manner is a plurality of rollers 120 being in load supporting relationship to the inner surface 16 of individual ones of the pair of endless rubber belts 14.
  • a tensioning system 122 is interposed the main support member 110 and the idler wheel 112 and is of conventional construction.
  • a front hardbar 130 is positioned in supporting relationship between the second structure 82 and the main support member 110.
  • a first end portion 132 of the front hardbar 130 is removably attached to the second structure 82 nearer the first end portion 100 and between the first end portion 100 and the second end portion 102 of the second structure 82.
  • a plurality of fasteners not shown, removably attach the front hardbar 130 to the second structure 82.
  • a second end portion 134 of the front hardbar 130 is slidablely connected to a first member 136 extending from the main support member 110.
  • the second end portion 134 has a cylindrical configuration which is positioned within a split collar 138.
  • a pair of flanges 140 are attached to the split collar 138.
  • An adjustable fastener 144 such as a bolt and nut, extends therebetween to affix the second end portion 134 of the front hardbar 130 relative to the roller frame 70.
  • a rear hardbar 150 is positioned in supporting relationship between the second structure 82 and the main support member 110.
  • a first end portion 152 of the rear hardbar 150 is removably attached to the second structure 82 nearer the second end portion 102 and between the first end portion 100 and the second end portion 102 of the second structure 82.
  • a plurality of fasteners attach the rear hardbar 150 to the second structure 82.
  • a second end portion 154 of the rear hardbar 150 is slidablely connected to the main support member 110 in a fashion identical to that of the second end portion 134 of the front hardbar 130.
  • the second end portion 154 has a cylindrical configuration which is positioned within a split collar.
  • a pair of flanges are attached to a respective pair of the ends of the split collar.
  • An adjustable fastener such as a bolt and nut, extends therebetween to affix the second end portion 154 of the rear hardbar 150 relative to the roller frame 70.
  • a reestablished gauge 170 is defined.
  • the gauge 170 is the measured distance between the pair of roller frame axis 116 or, in most instances, twice the distance between the central axis 24 and the roller frame axis 116. Typical gauge measurements range from about 1524 cm, or 60 inches, to about 3048 cm, or 120 inches.
  • the front hardbar 130 and the rear hardbar 150 are manufactured to include the gauge 170 measurement up to about 2235 cm or 88 inches.
  • a spacer 172 is positioned between each of the front hardbar 130 and the rear hardbar 150 and the second structure 82 on each of the pair of sides 20 of the work machine.
  • the drive wheel 114 At the end of the main support member 110 of the roller frame 70 opposite the idler wheel 112 is the drive wheel 114.
  • a power transmitting device 174 which in this application is a telescoping power connector 176, is the final drive 68.
  • the final drive 68 includes a housing 178, which in this application is a multipiece housing, having a gear 180 therein being supported in a convention manner to provide rotational, power transmitting functions.
  • the gear 180 includes an input portion 182 and an output portion 184. In this application, the output portion 184 has a chain 186 drivingly connected to the drive wheel 114.
  • the output portion 184 drives the drive wheel 114 which is in operational driving relationship with the inner surface 16 of the respective pair of endless rubber belted tracks 14.
  • the present invention drives the endless rubber belted track with frictional force, but as an alternative, the drive wheel 114 could be adapted to driving a sprocket drive wheel which would mechanically drive a track.
  • the telescoping power connector 176 has a guard 188 positioned thereabout.
  • the telescoping power connector 176 includes a first end portion 190, which in this application, slidably interfaces with the differential steering mechanism 66 and forms a slip joint 192.
  • a mechanical connection to the differential steering mechanism 66 could have a universal joint attached thereto.
  • a second end portion 196 of the telescoping power connector 176 has a driver portion 198 positioned thereon being in power driving relationship to the input portion 182 of the gear 180.
  • a chain and sprocket configuration 200 transfers the power to the drive wheel 114.
  • a gear reduction system 202 interposes the chain and sprocket configuration 200 and the drive wheel 114.
  • the first end 190 and the second end 196 of the telescoping power connector 176 could be a 192 which would allow the power to be mechanically transmitted therethrough when the gauge 170 is differently spaced or changed.
  • the slip joint 192 would include a first portion having a female spline formed thereon and a second portion having a male portion formed thereon. As the first portion and the second portion are drivingly connected and are free to slide one relative to the other, the gauge 170 could easily be changed.
  • roller frame 70 having the tensioning system 122, the final drive 68, the plurality of rollers 120, and the drive wheel 114 integral therewith, a simplified system for individually driving the pair of endless belts 14 and allowing the gauge 170 of the work machine 10 to be easily changed or varied is provided. Furthermore, with the telescoping power connector 176 having the slip joint 192 therein, the power is easily transmitted from the power source, the engine 36, to the final drive 68 and, in turn, to the pair of endless belts 14.
  • the versatility of the work machine 10 is greatly enhanced.
  • the changing of the gauge 170 becomes simple, effective and much less time consuming.
  • the gauge 170 being at about 1524 cm, or 60 inches, the gauge can be easily changed to about 2235 cm, or 88 inches, in an efficient and effective manner.
  • the adjustable fasteners are loosened allowing the split collars 138 to become loose about the second end portion 134 of the front hardbar 130 and the second end portion 154 of the rear hardbar 150.
  • the roller frame 70 can be moved without further disassembly.
  • the telescoping power connection 176 is a rotating member, the guard 188 will be provided.
  • the gauge 170 needs to be extended beyond the 2235 cm, or 88 inches, additional disassembly and reassembly must take place.
  • the first end portion 132 of the front hardbar 130 must be removed from the second structure 82 and the spacer 172 positioned between the second structure 82 and the first end portion 132 of the front hardbar 130.
  • the first end portion 152 of the rear hardbar 150 must be removed from the second structure 82 and the spacer 172 positioned between the second structure 82 and the first end portion 152 of the rear hardbar 150.
  • the guard 188 will be provided.
  • the combination of the integral roller frame 70, the slidable features of the front and rear hardbars 130,150 and the flexibility of the power transmitting device 174 provide a more versatile work machine 10.
  • the gauge 170 can be easily changed in a simple, effective and timely manner with the structure, as defined in the above invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)

Abstract

Les systèmes de transmission qu'on utilise actuellement pour équiper une chenille à bande sans fin ne peuvent pas assurer de manière effective et efficace la polyvalence adéquate nécessaire pour d'autres types d'usage et de diversification des applications de la machine exigeant une plus grande diversité dans les réglages d'écartement. La machine de travaux (10) de l'invention comprend un système de transmission (64) muni d'une barre rigide frontale (130) et d'une barre rigide arrière (150) fixées de manière libérable à une charpente (22). Une deuxième partie d'extrémité (134, 154) des barres rigides frontale et arrière (130, 150) est fixée à un longeron de chenilles (70). Un dispositif d'entraînement (174) est intercalé entre la barre rigide frontale (130) et la barre rigide arrière (150) et présente un connecteur d'alimentation télescopique (176) incluant un joint coulissant (192).
PCT/US1998/001919 1997-03-13 1998-02-06 Systeme de transmission pour machine de travaux entrainee par courroie WO1998040264A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU62607/98A AU6260798A (en) 1997-03-13 1998-02-06 Drive system for a belt driven work machine

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US81910297A 1997-03-13 1997-03-13
US08/819,102 1997-03-13

Publications (1)

Publication Number Publication Date
WO1998040264A1 true WO1998040264A1 (fr) 1998-09-17

Family

ID=25227199

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1998/001919 WO1998040264A1 (fr) 1997-03-13 1998-02-06 Systeme de transmission pour machine de travaux entrainee par courroie

Country Status (2)

Country Link
AU (1) AU6260798A (fr)
WO (1) WO1998040264A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1011615C2 (nl) * 1999-03-19 2000-09-20 Frans Van Zaal B V Loopkat of pendelwagen alsmede een warenhuis voorzien van een dergelijke loopkat of pendelwagen.
EP1468901A2 (fr) * 2003-04-14 2004-10-20 MACMOTER S.p.A. Engin à chenille à voie variable
US7373999B2 (en) 2003-04-14 2008-05-20 Macmoter S.P.A. Crawler-tracked vehicle with variable track width
WO2023191616A1 (fr) 2022-03-28 2023-10-05 Agxeed Holding B.V. Procédé de culture de parcelle de terre agricole avec véhicule agricole autonome et véhicule pour appliquer ledit procédé

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB113102A (en) * 1916-10-26 1918-02-14 Hubert Avery Hatfield Improvements in or relating to Motor-driven Vehicles having Endless Tracks.
US2763330A (en) * 1955-03-02 1956-09-18 American Hoist & Derrick Co Laterally adjustable treads for crawler cranes
US3037571A (en) * 1959-08-17 1962-06-05 Schield Bantam Company Wide base crawler
US4132317A (en) * 1977-04-12 1979-01-02 Spetsialnoe Konstruktorskoe Bjuro Gazstroimashina Pipe laying crane
EP0721879A2 (fr) * 1992-09-25 1996-07-17 Caterpillar Inc. Chassis pour véhicule

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB113102A (en) * 1916-10-26 1918-02-14 Hubert Avery Hatfield Improvements in or relating to Motor-driven Vehicles having Endless Tracks.
US2763330A (en) * 1955-03-02 1956-09-18 American Hoist & Derrick Co Laterally adjustable treads for crawler cranes
US3037571A (en) * 1959-08-17 1962-06-05 Schield Bantam Company Wide base crawler
US4132317A (en) * 1977-04-12 1979-01-02 Spetsialnoe Konstruktorskoe Bjuro Gazstroimashina Pipe laying crane
EP0721879A2 (fr) * 1992-09-25 1996-07-17 Caterpillar Inc. Chassis pour véhicule

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1011615C2 (nl) * 1999-03-19 2000-09-20 Frans Van Zaal B V Loopkat of pendelwagen alsmede een warenhuis voorzien van een dergelijke loopkat of pendelwagen.
EP1468901A2 (fr) * 2003-04-14 2004-10-20 MACMOTER S.p.A. Engin à chenille à voie variable
EP1468901A3 (fr) * 2003-04-14 2005-03-23 MACMOTER S.p.A. Engin à chenille à voie variable
US7373999B2 (en) 2003-04-14 2008-05-20 Macmoter S.P.A. Crawler-tracked vehicle with variable track width
WO2023191616A1 (fr) 2022-03-28 2023-10-05 Agxeed Holding B.V. Procédé de culture de parcelle de terre agricole avec véhicule agricole autonome et véhicule pour appliquer ledit procédé

Also Published As

Publication number Publication date
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