US3527315A - Articulated motor grader - Google Patents

Articulated motor grader Download PDF

Info

Publication number
US3527315A
US3527315A US727983A US3527315DA US3527315A US 3527315 A US3527315 A US 3527315A US 727983 A US727983 A US 727983A US 3527315D A US3527315D A US 3527315DA US 3527315 A US3527315 A US 3527315A
Authority
US
United States
Prior art keywords
unit
motor grader
wheels
articulated
pivotally connected
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.)
Expired - Lifetime
Application number
US727983A
Other languages
English (en)
Inventor
Andrew V Hampton
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.)
Fiat Allis Europe SpA
Allis Chalmers Corp
Original Assignee
Allis Chalmers Corp
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 Allis Chalmers Corp filed Critical Allis Chalmers Corp
Application granted granted Critical
Publication of US3527315A publication Critical patent/US3527315A/en
Assigned to FIATALLIS EUROPE S.P.A. reassignment FIATALLIS EUROPE S.P.A. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: FIATALLIS NORTH AMERICA, INC., A DE CORP
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/08—Superstructures; Supports for superstructures
    • E02F9/0841—Articulated frame, i.e. having at least one pivot point between two travelling gear units
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/76—Graders, bulldozers, or the like with scraper plates or ploughshare-like elements; Levelling scarifying devices
    • E02F3/7636—Graders with the scraper blade mounted under the tractor chassis

Definitions

  • AR'II CULATED MOTOR GRADER Filed May 9, 1968 2 Sheets-Sheet 1 mmmkgk .QWRWW 61). Z a "WW 22 W I M WpM/w Sept. 8, 1970 A. v. HAMPTON ARTICULATED MOTOR GRADER 2 Sheets-Sheet 2 Filed May 9. 1968 United States Patent 3,527,315 ARTICULATED MOTOR GRADER Andrew V. Hampton, Springfield, Ill., assignor to Allis- Chalmers Manufacturing Company, Milwaukee, Wis. Filed May 9, 1968, Ser. No. 727,983 Int. Cl. B60k 17/30 U.S. Cl.
  • a motor grader having a rear two-wheel tractor unit is articulately connected to the rear end of a tool frame, and the front end of the tool frame is articulately connected to a front wheel drive unit.
  • the front wheel drive unit includes an oscillating axle assembly with a pair of leanable drive wheels.
  • the front wheel unit incorporates the features of articulated or wagon steer relative to the tool frame, oscillation of the axle thereof about a longitudinal axis, power driven wheels which are leanable.
  • This invention relates to a motor grader having a front wheel drive unit which is articulatively connected to the tool frame for pivotable movement about a vertical axis and has an oscillating axle assembly with wheels which may be laterally leaned.
  • motor graders of various types have been developed and marketed, some of the prior rnotor graders have employed double articulation steering and some have employed powered front wheels. While these prior motor graders have enjoyed some measure of success, there still existed a need for improved performance and capabilities.
  • the present invention provides a double articulated motor grader having a wagon steer type front unit with wheels that are leanable and power driven. Motor graders employing the present invention have improved maneuverability and work capability, particularly when used in ditching and bank slope operations.
  • FIG. 1 is a side view of the motor grader incorporating the present invention
  • FIG. 2 is a vertical section through the front articulation joint of the motor grader
  • FIG. 3 is a top view of the motor grader shown in FIG. 1;
  • FIG. 4 is an enlarged front view of the motor grader with parts thereof shown in section.
  • the motor grader 11 is made up of three major components; namely, a rear power unit 12, an elongated tool supporting frame 13, and a front drive unit 14.
  • the rear power unit 12 is essentially the twowheel power unit of an articulated tractor loader and,
  • such unit has an internal combustion engine 15 providing power to the rear wheels 14 through a change speed transmission 16.
  • the rear unit 12 also includes an operators station 17 at which steering controls, in the form of a steering wheel 18, are located.
  • the longitudinally extending tool supporting frame 13 has its rear end articulately connected to the front of the rear unit by a pair of vertically spaced aligned pivot pins 21, 22.
  • the tool supporting frame 13 and rear unit 12 are steered relative to one another about the vertical articulation axis 23 by a pair of doubleacting hydraulic jacks 24, 26 which have their cylinder ends pivotally connected to the rear unit 12 and their piston rods pivotally connected to the tool supporting frame 13.
  • the front unit includes a hitch frame 31 which is pivotally connected to the front end of the tool supporting frame by a pivot pin 32 and an antifriction bearing 34.
  • the front unit also includes an axle assembly 36 which has a cradle 35 with front and rear plates 44, 45 pivotally connected to the hitch member 31 on a longitudinal axis 37 by a pair of aligned pivot pins 38, 39.
  • the input shaft 41 of the axle assembly 36 is connected in driven relation to an output shaft 42 of the transmission 16 by a power train 43 which extends through the hollow interior of frame 13.
  • the axis of the input shaft 41 coincides with the vertical articulation axis 46.
  • the front wheel unit 14 is steered relative to the tool supporting frame 13 about axis 46 by a pair of double-acting hydraulic jacks 47 and 48 which have their cylinders trunnion mounted on the tool supporting frame and their piston rods pivotally connected to the intermediate hitch member 31.
  • the controls for the steering jacks 47, 48 include a hydraulic control valve, not shown, which is operatively connected to steering wheel 18.
  • a pair of wheel spindles 53, 54 are pivotally connected to axle housing extensions 57, 58 of assembly 36 for front wheel lean movement about longitudinal axes 61, 62.
  • Front drive wheels 51, 52 are rotatably mounted on spindles 53, 54, respectively, and are connected in driven relation to input shaft 41 of the axle assembly 36 through a differential 56.
  • the drive to the front wheel 52 includes a jack shaft 96 and planetary gear set 97.
  • a tie rod 63 is pivotally connected at its opposite ends to wheel spindles 53, 54 by pins 59, 60, and the lateral leaning of the wheels 51, 52 about axes 61, 62 is accomplished by power means in the form of hydraulic jacks 64, 66. As seen in FIGS.
  • the tie rod 63 includes an intermediate portion which lies between the pins 38, 39 and which is curved slightly to the rear to avoid interference with vertical input shaft 41.
  • the hydraulic jacks 64, 66 have their cylinders pivotally connected to braces 67, 68 of cradle 35, and their piston rods pivotally connected to pivot pins 59, 60.
  • the tool supporting frame 13 has a draft member in the form of a socket 71 near its forward end to which a complementary hitch part, in the form of a ball member 72 of a drawbar and circle assembly 73, is connected.
  • the earthworking blade 74 of the motor grader is mounted on the circle assembly 73 in a conventional manner for swinging adjustment about a vertical axis by a hydraulically powered drive unit 76.
  • the blade 74 and circle assembly 73 are adjusted vertically by a pair of doubleacting hydraulic jacks 81, 82 which have their cylinders trunnion mounted to the tool supporting frame 13 and their piston rods pivotally connected to laterally spaced points on the circle assembly 13.
  • the double articulated motor grader of the present invention may be articulately steered to the position shown in phantom lines 91.
  • This position of the motor grader frame and front wheel unit is particularly useful in working in ditches and on banks or slopes.
  • the rear power unit can remain on the shoulder of the road while the front wheels run in the ditch; or in working a slope, the front wheels can ride on the bank of a slope while the rear wheels travel at the base of the slope.
  • the rear wheels can be offset from the front wheels to provide good blade position without discharging dirt beneath the rear driving wheels.
  • the improved maneuverability of a motor grader using this invention permits snowplow operations to be accomplished more effectively with a higher degree of safety, particularly in mountainous terrain.
  • the power unit need not travel close to the edge of the road during such snow plowing operations.
  • the improved maneuverability of motor graders using the present invention makes such motor graders a markedly more versatile machine on a wide variety of earthmoving and grading projects.
  • the articulated grader of the present invention does superior finishing work around culverts, driveways, buildings and other structures where maneuverability is an important factor in productivity. It has been found that a higher horsepower per unit weight ratio can be utilized in a machine incorporating the present invention; thus, increasing its work capability.
  • a double articulated earth-working machine comprising:
  • a tractor unit having ground engaging traction means and a source of power connected to said traction means
  • a front unit including a hitch member pivotally connected to the front end of said frame on a vertical steer axis and pivotable on said steer axis independently of pivotal movement of said frame about said vertical pivot axis, an axle assembly pivotally connected to said hitch member for oscillating movement about a longitudinal axis by a pair of longitudinally spaced pivot elements and wheel spindles pivotally connected, respectively, to transversely opposite ends of said axle assembly for lateral leaning movement about longitudinal tilt axes, drive wheels rotatably mounted on said spindles,
  • tilt means operable to adjust said spindles relative to said axle assembly about said tilt axes including a transverse tie rod pivotally connected at its opposite ends to said spindles, respectively, at points thereon above said tilt axes and having an intermediate portion disposed between said pivot elements, power transmitting means interconnecting said source of power and said input shaft, and first and second steering jacks connecting said tractor unit and hitch member, respectively, with said frame for selective steering movement relative to the latter.
  • upper and lower pivot means pivotally interconnecting said hitch member and frame, said lower pivot means including a bearing encompassing the part of said power transmitting means connected to said input shaft.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Vehicle Body Suspensions (AREA)
  • Agricultural Machines (AREA)
  • Operation Control Of Excavators (AREA)
  • Automatic Cycles, And Cycles In General (AREA)
US727983A 1968-05-09 1968-05-09 Articulated motor grader Expired - Lifetime US3527315A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US72798368A 1968-05-09 1968-05-09

Publications (1)

Publication Number Publication Date
US3527315A true US3527315A (en) 1970-09-08

Family

ID=24924931

Family Applications (1)

Application Number Title Priority Date Filing Date
US727983A Expired - Lifetime US3527315A (en) 1968-05-09 1968-05-09 Articulated motor grader

Country Status (5)

Country Link
US (1) US3527315A (de)
DE (1) DE1923787A1 (de)
ES (1) ES366992A1 (de)
FR (1) FR2008150A1 (de)
GB (1) GB1224282A (de)

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3704754A (en) * 1970-02-19 1972-12-05 Layton Mfg Co Articulated vehicle having an adjustable grader blade thereon
DE2229333A1 (de) * 1971-06-14 1973-01-18 Caterpillar Tractor Co Kupplung fuer gelenkfahrzeug
US3789929A (en) * 1972-03-29 1974-02-05 R Leidig Three wheel all wheel hydraulic drive tractor
US3800903A (en) * 1972-01-17 1974-04-02 Caterpillar Tractor Co Coaxial steering wheels for an articulated motor grader
US3896894A (en) * 1973-01-24 1975-07-29 Caterpillar Tractor Co Means to transmit power across articulated vehicle hitch point
US3976146A (en) * 1975-03-13 1976-08-24 Bernard Desourdy Grader
US3991847A (en) * 1975-08-14 1976-11-16 Caterpillar Tractor Co. Steering system for an articulated vehicle
US4042053A (en) * 1974-12-24 1977-08-16 Allis-Chalmers Corporation Four-wheel drive tractor
US4055228A (en) * 1976-05-24 1977-10-25 Clark Equipment Company Drive line disconnect mechanism
US4094373A (en) * 1977-05-04 1978-06-13 Crow Arthur F Jun Method and apparatus for converting an agriculture machine to a tractor
EP0075482A2 (de) * 1981-09-22 1983-03-30 Royal Tractor Company, Inc. Knickgelenktes Bodenbewegungsfahrzeug
US4565257A (en) * 1984-02-08 1986-01-21 J. I. Case Company Multi-mode steering system
US4679634A (en) * 1986-02-11 1987-07-14 Bulmahn Gerald L Apparatus for extending the frame of a tractor
US4693331A (en) * 1986-04-23 1987-09-15 Hiniker Company Tractor boom
US4802545A (en) * 1986-10-15 1989-02-07 J. I. Case Company Steering control system for articulated vehicle
EP1080621A1 (de) * 1999-08-31 2001-03-07 Reekie Manufacturing Ltd. Universeller Geräteträger
US20070068691A1 (en) * 2005-09-23 2007-03-29 Smart William J Motor grader with adjustable front wheel structure
US20130240282A1 (en) * 2012-03-13 2013-09-19 Reginald M. Bindl Electric Drive Axle Configuration
US20140060403A1 (en) * 2012-09-06 2014-03-06 Cnh America Llc Pull frame for an agricultural implement
US9637889B2 (en) 2015-06-12 2017-05-02 Cnh Industrial America Llc Automated moldboard draft control system and method
US20190063035A1 (en) * 2016-03-23 2019-02-28 Komatsu Ltd. Control method in motor grader and motor grader
IT201800004096A1 (it) * 2018-03-29 2019-09-29 Cnh Ind Italia Spa Motor grader provvisto di ausilio alla sterzata
USD880533S1 (en) * 2018-11-23 2020-04-07 Guangxi Liugong Machinery Co., Ltd. Motor grader
USD886161S1 (en) 2019-03-14 2020-06-02 Caterpillar Inc. Motor grader
USD887453S1 (en) 2019-03-14 2020-06-16 Caterpillar Inc. Motor grader
US20220098822A1 (en) * 2020-09-25 2022-03-31 Deere & Company Road grader attachment for a skid steer

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2135573C2 (de) * 1971-07-16 1982-08-12 Layton Mfg. Co., Salem, Oreg. Planierfahrzeug
DE3309119A1 (de) * 1983-03-15 1984-09-27 O & K Orenstein & Koppel Ag, 1000 Berlin Selbstfahrendes baufahrzeug in zweiteiliger tragkonstruktion mit knickrahmenlenkung

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US641834A (en) * 1899-04-11 1900-01-23 James H Bullard Combined driving and steering axle for automobile vehicles.
US1055010A (en) * 1912-01-12 1913-03-04 Robert E Zager Traction-vehicle.
US1079607A (en) * 1912-03-16 1913-11-25 Thomas Benton Snyder Transmission and steering mechanism for motor-driven vehicles.
US1405159A (en) * 1921-02-17 1922-01-31 Henry P Polaski Tractor drive gearing
US2130274A (en) * 1937-10-18 1938-09-13 John F Harrison Road working device
US2195607A (en) * 1940-04-02 Self-propelled road machine
US2494324A (en) * 1944-04-29 1950-01-10 Galion Iron Works & Mfg Co Road grader
US2625231A (en) * 1950-08-23 1953-01-13 Fred P Martin Drive axle mounted for swinging and rocking motion
US2748509A (en) * 1950-05-27 1956-06-05 Baldwin Lima Hamilton Corp Six wheel drive and steer road machine
US3431741A (en) * 1966-09-26 1969-03-11 Henkels & Mccoy Inc Articulated vehicle

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2195607A (en) * 1940-04-02 Self-propelled road machine
US641834A (en) * 1899-04-11 1900-01-23 James H Bullard Combined driving and steering axle for automobile vehicles.
US1055010A (en) * 1912-01-12 1913-03-04 Robert E Zager Traction-vehicle.
US1079607A (en) * 1912-03-16 1913-11-25 Thomas Benton Snyder Transmission and steering mechanism for motor-driven vehicles.
US1405159A (en) * 1921-02-17 1922-01-31 Henry P Polaski Tractor drive gearing
US2130274A (en) * 1937-10-18 1938-09-13 John F Harrison Road working device
US2494324A (en) * 1944-04-29 1950-01-10 Galion Iron Works & Mfg Co Road grader
US2748509A (en) * 1950-05-27 1956-06-05 Baldwin Lima Hamilton Corp Six wheel drive and steer road machine
US2625231A (en) * 1950-08-23 1953-01-13 Fred P Martin Drive axle mounted for swinging and rocking motion
US3431741A (en) * 1966-09-26 1969-03-11 Henkels & Mccoy Inc Articulated vehicle

Cited By (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3704754A (en) * 1970-02-19 1972-12-05 Layton Mfg Co Articulated vehicle having an adjustable grader blade thereon
DE2229333A1 (de) * 1971-06-14 1973-01-18 Caterpillar Tractor Co Kupplung fuer gelenkfahrzeug
US3800903A (en) * 1972-01-17 1974-04-02 Caterpillar Tractor Co Coaxial steering wheels for an articulated motor grader
US3789929A (en) * 1972-03-29 1974-02-05 R Leidig Three wheel all wheel hydraulic drive tractor
US3896894A (en) * 1973-01-24 1975-07-29 Caterpillar Tractor Co Means to transmit power across articulated vehicle hitch point
US4042053A (en) * 1974-12-24 1977-08-16 Allis-Chalmers Corporation Four-wheel drive tractor
US3976146A (en) * 1975-03-13 1976-08-24 Bernard Desourdy Grader
US3991847A (en) * 1975-08-14 1976-11-16 Caterpillar Tractor Co. Steering system for an articulated vehicle
US4055228A (en) * 1976-05-24 1977-10-25 Clark Equipment Company Drive line disconnect mechanism
US4094373A (en) * 1977-05-04 1978-06-13 Crow Arthur F Jun Method and apparatus for converting an agriculture machine to a tractor
EP0075482A2 (de) * 1981-09-22 1983-03-30 Royal Tractor Company, Inc. Knickgelenktes Bodenbewegungsfahrzeug
EP0075482A3 (de) * 1981-09-22 1983-11-16 Royal Tractor Company, Inc. Knickgelenktes Bodenbewegungsfahrzeug
US4565257A (en) * 1984-02-08 1986-01-21 J. I. Case Company Multi-mode steering system
US4679634A (en) * 1986-02-11 1987-07-14 Bulmahn Gerald L Apparatus for extending the frame of a tractor
US4693331A (en) * 1986-04-23 1987-09-15 Hiniker Company Tractor boom
US4802545A (en) * 1986-10-15 1989-02-07 J. I. Case Company Steering control system for articulated vehicle
EP1080621A1 (de) * 1999-08-31 2001-03-07 Reekie Manufacturing Ltd. Universeller Geräteträger
US7735574B2 (en) * 2005-09-23 2010-06-15 Volvo Road Machinery, Ltd. Motor grader with adjustable front wheel structure
US20070068691A1 (en) * 2005-09-23 2007-03-29 Smart William J Motor grader with adjustable front wheel structure
US20130240282A1 (en) * 2012-03-13 2013-09-19 Reginald M. Bindl Electric Drive Axle Configuration
US8640812B2 (en) * 2012-03-13 2014-02-04 Deere & Company Electric drive axle configuration
US20140060403A1 (en) * 2012-09-06 2014-03-06 Cnh America Llc Pull frame for an agricultural implement
US10104825B2 (en) * 2012-09-06 2018-10-23 Cnh Industrial America Llc Pull frame for an agricultural implement
US9637889B2 (en) 2015-06-12 2017-05-02 Cnh Industrial America Llc Automated moldboard draft control system and method
US10704226B2 (en) * 2016-03-23 2020-07-07 Komatsu Ltd. Control method in motor grader and motor grader
US20190063035A1 (en) * 2016-03-23 2019-02-28 Komatsu Ltd. Control method in motor grader and motor grader
IT201800004096A1 (it) * 2018-03-29 2019-09-29 Cnh Ind Italia Spa Motor grader provvisto di ausilio alla sterzata
EP3546658A1 (de) * 2018-03-29 2019-10-02 CNH Industrial Italia S.p.A. Motorgrader mit komfortlenkung
US11124941B2 (en) 2018-03-29 2021-09-21 Cnh Industrial America Llc Motor grader with comfort steering
USD880533S1 (en) * 2018-11-23 2020-04-07 Guangxi Liugong Machinery Co., Ltd. Motor grader
USD886161S1 (en) 2019-03-14 2020-06-02 Caterpillar Inc. Motor grader
USD887453S1 (en) 2019-03-14 2020-06-16 Caterpillar Inc. Motor grader
US20220098822A1 (en) * 2020-09-25 2022-03-31 Deere & Company Road grader attachment for a skid steer

Also Published As

Publication number Publication date
FR2008150A1 (de) 1970-01-16
ES366992A1 (es) 1971-06-16
DE1923787A1 (de) 1969-11-13
GB1224282A (en) 1971-03-10

Similar Documents

Publication Publication Date Title
US3527315A (en) Articulated motor grader
US1997001A (en) Bulldozer
US5180028A (en) Tractor implement orientation system
US4966242A (en) All-terrain vehicle
US3224347A (en) Soil processing machine
CA2226236C (en) Tractor drawn scraper with folding wings
US4878544A (en) Compaction roller
US3866342A (en) Reversible snow plow attachment for wheeled vehicles
US3477535A (en) Roller attachment for a self-propelled vehicle
US4279312A (en) Dual tractor road grader with double arched center frame
US3771241A (en) Steering mechanism for trencher
US3672701A (en) Trailing wheel structure for vehicle-drawn implement
US2748509A (en) Six wheel drive and steer road machine
GB2299570A (en) Multipurpose Construction Vwhicle
US4364438A (en) Dual tractor road grader with double arched center frame
US4174757A (en) Material ripping vehicle
US4892154A (en) Ground-working apparatus with rotary tiller
US4185698A (en) Adjustable auger dozer
CN112922058A (zh) 一种兼容工程机械属具与农用机械属具的多功能工程车
US3630302A (en) Articulated vehicle having contour control
US3165842A (en) Mechanism for attaching implements to vehicles
US3349864A (en) Transmission mounting in an articulated vehicle
US4930582A (en) Road grader attachment
US2686982A (en) Road working machine
US4340128A (en) Offset type tractor

Legal Events

Date Code Title Description
AS Assignment

Owner name: FIATALLIS EUROPE S.P.A., ZONA INDUSTRIALE SURBO, I

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:FIATALLIS NORTH AMERICA, INC., A DE CORP;REEL/FRAME:004389/0443

Effective date: 19850228