US3527315A - Articulated motor grader - Google Patents
Articulated motor grader Download PDFInfo
- 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
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)
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)
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)
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)
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 |
-
1968
- 1968-05-09 US US727983A patent/US3527315A/en not_active Expired - Lifetime
-
1969
- 1969-05-02 GB GB22501/69A patent/GB1224282A/en not_active Expired
- 1969-05-08 FR FR6914863A patent/FR2008150A1/fr not_active Withdrawn
- 1969-05-09 DE DE19691923787 patent/DE1923787A1/de active Pending
- 1969-05-09 ES ES366992A patent/ES366992A1/es not_active Expired
Patent Citations (10)
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)
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 |
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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 |