US3916541A - Adjustable mechanism for a scraper elevator - Google Patents

Adjustable mechanism for a scraper elevator Download PDF

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Publication number
US3916541A
US3916541A US522574A US52257474A US3916541A US 3916541 A US3916541 A US 3916541A US 522574 A US522574 A US 522574A US 52257474 A US52257474 A US 52257474A US 3916541 A US3916541 A US 3916541A
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US
United States
Prior art keywords
elevator device
cutting blade
base member
pair
link members
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
US522574A
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English (en)
Inventor
Richard A Hood
Thomas L Raab
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.)
Motors Liquidation Co
Original Assignee
General Motors 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 General Motors Corp filed Critical General Motors Corp
Priority to US522574A priority Critical patent/US3916541A/en
Priority to CA233,028A priority patent/CA1025399A/fr
Priority to BR7505645*A priority patent/BR7505645A/pt
Priority to GB3832675A priority patent/GB1467792A/en
Application granted granted Critical
Publication of US3916541A publication Critical patent/US3916541A/en
Assigned to IBJ SCHRODER BANK & TRUST COMPANY reassignment IBJ SCHRODER BANK & TRUST COMPANY SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: TEREX CORPORATION
Anticipated expiration legal-status Critical
Assigned to TEREX CORPORATION reassignment TEREX CORPORATION RELEASE OF SECURITY INTEREST AND REASSIGNMENT Assignors: IBJ SCHRODER BANK & TRUST COMPANY, AS AGENT
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • E02F3/64—Buckets cars, i.e. having scraper bowls
    • E02F3/65—Component parts, e.g. drives, control devices
    • E02F3/654—Scraper bowls and components mounted on them
    • E02F3/655—Loading or elevator mechanisms
    • 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
    • E02F3/64—Buckets cars, i.e. having scraper bowls
    • E02F3/6454—Towed (i.e. pulled or pushed) scrapers

Definitions

  • the present invention concerns elevating scrapers in general and more particularly an adjustment mechanism for changing the operating position of the lower end of the elevator relative to the scraper cutting blade.
  • the present invention is directed to an improved adjustment mechanism of the above described type which is adapted to be incorporated with an elevator device mounted in a scraper bowl having an open end defined by a pair of laterally spaced side walls and a transversely extending cutting blade.
  • the elevator device is located in the open end of the scraper bowl and is suspended from the bowl side walls by a linkage consisting of upper and lower link members pivotally connected to each side of the elevator device in a manner whereby the lower end of the elevator can float towards and away from the cutting blade.
  • the adjusting mechanism is connected to each side wall of the bowl and serves to support the forward end of the lower link member and provide adjustable vertical positioning thereof so as to change the spacing between the lower flight members and the cutting blade.
  • the adjustment mechanism includes a base member attached to the associated side wall and formed with an elongated slot.
  • the base member is also formed with a plurality of teeth at its outer edge that are located along a line that is substantially parallel to the longitudinal axis of the slot.
  • An arm is combined with a base member and serves to support the forward end of the lower link member and provide adjustable positioning thereof through a pair of vertically spaced and parallel pins carried by the arm with the upper pin being slidably received by the slot while the lower pin is adapted to be located between a pair of adjacent teeth for limiting downward movement of the arm.
  • Repositioning of the support arm, and accordingly, the lower end of the elevator device is realized by pivoting the arm about the upper pin so as to remove the lower pin from engagement with the teeth followed by vertical movement of the arm to a new position and the reengagement of the lower pin with the teeth.
  • the objects ofthe present invention are to provide an improved mechanism for quickly adjusting the position of the lower end of a scraper elevator relative to the cutting blade without requiring special tools; to provide an improved adjustment mechanism for varying the position of the lower end of a scraper elevator that includes a vertically adjustable arm supporting a portion of the linkage connecting the elevator to the scraper bowl; and to provide an improved scraper having an elevator device connected by a linkage to the side walls of a scraper bowl with a portion of the linkage being supported by a pair of arms that extend laterally inwardly from the side walls and with each arm carrying a pair of pins which cooperate with a slot and a plurality of teeth formed with a bracket attached to the asso 2 ciated side wall for allowing adjustment of the normal operating position of the lower end of the elevator.
  • FIG. 1 is an elevation view showing a rubber-tired overhung elevating scraper incorporating an elevator device adjustment mechanism made in accordance with the invention
  • FIG. 2 is an enlarged view of the elevator device employed with the scraper of FIG. 1 and shows the adjust ment mechanism more clearly;
  • FIG. 3 is an enlarged view taken on lines 3-3 of FIG. 2 showing the details of construction of the adjustment mechanism.
  • FIG. 4 is a view taken on line 4--4 of FIG. 3.
  • an elevating scraper 10 having the usual overhung tractor l2 and a trailing scraper bowl 14 which are respectively supported by rubber tires 16 and 18.
  • the tractor 12 is connected through a universal coupling 20 to a pull yoke 21 which includes a goose neck 22 that extends rearwardly for rigid connection with the usual transverse torque tube 24.
  • the opposite ends of the torque tube 24 are provided with laterally spaced pull arms 26 and 28 the rear ends of which are connected by transversely aligned pivot connections to the side walls 30 and 32 respectively of the scraper bowl 14.
  • An elevator device 34 is located at the front end of the scraper bowl 14 between the side walls 30 and 32 and above a cutting blade 36 which extends between the side walls. The elevator device 34 serves as a means for assisting loading of cut material into the scraper bowl 14.
  • each bowl cylinder is pivotally mounted to the torque tube 24 adjacent the outer end thereof while the lower end of each bowl cylinder is pivotally connected to the lower forward end to the scraper bowl 14.
  • the bowl cylinders serve to move the scraper bowl 14 between a raised carry-position and a lowered dig-position.
  • the elevator device 34 comprises a support frame 40 the upper and lower portions of which carry the usual sprocket wheels and guide wheels about which an endless chain 4l is entrained that supports a plurality of transverse flight members.
  • the support frame 40 is supported for pivotal movement by a mounting assembly which includes a pair of side wall supported link members 42 and 44.
  • the upper link member 42 has one end connected to the associated side wall by a pivotal connection 46 while the other end is connected to the upper portion of the support frame 40 by a pivotal connection 48.
  • the lower link member 44 has one end thereof connected by a pivotal connection 50 to the associated side wall while the other end extends forwardly and is connected by a pivotal connection 52 to the lower portion of the support frame 40.
  • An adjustment mechanism 54 supports the forward end of the lower link member 44 to provide a predetermined spacing between the flight members of the elevator device and the cutting blade 36.
  • the arrangement is such that the mounting assembly for the elevator device 34 permits the lower end of the elevator device to be free to move 3 upwardly under the control of the link members 42 and 44, and be limited in downward movement by the adjustment mechanism 54.
  • an identical adjustment mechanism supports the link member corresponding to the link member 44 located on the opposite side of the support frame 40.
  • the adjustment mechanism 54 includes a bracket which is rigidly secured to the as sociated side wall of the scraper bowl 14.
  • the bracket consists of an elongated base plate member 56 the upper end of which is formed with an elongated slot 58 extending slightly less than half the length of the base plate member and having its longitudinal center axis located in a vertical plane.
  • the lower portion of. the base plate member 56 along its outer edge is formed with three outwardly extending and upwardly inclined teeth 60, 62 and 64 which define U-shaped pockets 66, 68 and 70 that are identical in configuration and uniformly spaced along a vertical axis.
  • a support arm 72 is combined with the base plate member 56 and is formed from a pair of plate members 74 and 76 each of which is a mirror image of the other.
  • the plate members 74 and 76 are interconnected by a cross bar 78 and a pair of pins 80 and 82, and as seen in FIG. 3, each plate member is generally V-shaped having one leg 83 formed with an outwardly extending wing 84 which serves as a support surface for a cushion member 86 made from elastomeric material.
  • the other leg 88 of each of the plate members 74 and 76 is normally positioned adjacent one side of the base plate member 56 and together with the corresponding leg of the other plate member serves to straddle the upper end of the base plate member 56.
  • the pin 82 interconnects the upper ends of legs 88 of the plate members while the pin 80 serves to interconnect the lower ends of both legs 83 and 88.
  • An earthmoving self-loading scraper having a tractor connected by a pull yoke to a trailing scraper bowl, said scraper bowl having an open end defined by a pair of laterally spaced side walls and a transverse cutting blade extending between the side walls, an elevator device having an upper end and a lower end, a linkage including upper and lower link members mounting said elevator device at said open end of the scraper bowl with the lower end of the elevator device being supported adjacent to and above the cutting blade and being movable about a transverse horizontal axis relative to said cutting blade, one end of each of said link members being pivotally connected to said scraper bowl and the other end of each of said link members being pivotally connected to the elevator device, a mechanism for adjusting the position of the lower end of the elevator device relative to the cutting blade, said mechanism comprising a base member rigidly attached to one of said side walls, said base member having an elongated slot formed therein, a plurality of teeth formed along an outer edge of said base member, an arm supporting one of said link members adjacent
  • An earthmoving self-loading scraper having a tractor connected by a pull yoke to a trailing scraper bowl, said scraper bowl having an open end defined by a pair of laterally spaced side walls and a transverse cutting blade extending between the side walls, an elevator device having an upper end and a lower end, a linkage including upper and lower link members mounting said elevator device at said open end of the scraper bowl with the lower end of the elevator device being supported adjacent to and above the cutting blade and being movable about a transverse horizontal axis relative to said cutting blade, one end of each of said link members being pivotally connected to said scraper bowl and the other end of each of said link members being pivotally connected to the elevator device, a mechanism for each side wall for adjusting the position of the lower end of the elevator device relative to the cutting blade, said mechanism comprising a base member rigidly attached to one of said side walls, said base member having an elongated slot formed therein, the longitudinal axis of said slot being located in a vertical plane that is parallel to the longitudinal
  • An earthmoving self-loading scraper having a tractor connected by a pull yoke to a trailing scraper bowl, said scraper bowl having an open end defined by a, pair of laterally spaced side walls and a transverse cutting blade extending between the side walls.
  • an elevator device having an endless chain supporting a plurality of transverse flight members, said elevator device having an upper end and a lower end, a linkage including upper and lower link members pivotally mounting said elevator device at said open end of the scraper bowl with the lower end of the elevator device being supported adjacent to and above the cutting blade and being movable about a transverse horizontal axis relative to said cutting blade, one end of each of said link members being pivotally connected to said scraper bowl and the other end of each of said link members being pivotally connected to the elevator device, a mechanism for each side wall for adjusting the position of the flight members at the lower end of the elevator device relative to the cutting blade, said mechanism comprising an elongated base member rigidly attached to one of said side walls and having an upper portion and a lower portion, said base member having an elongated slot formed in the upper portion thereof, the longitudinal axis of said slot being located in a vertical 6 plane that is parallel to the longitudinal axis of the scraper, a plurality of upwardly inclined teeth formed in the lower portion of the base

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Soil Working Implements (AREA)
  • Chain Conveyers (AREA)
US522574A 1974-11-11 1974-11-11 Adjustable mechanism for a scraper elevator Expired - Lifetime US3916541A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US522574A US3916541A (en) 1974-11-11 1974-11-11 Adjustable mechanism for a scraper elevator
CA233,028A CA1025399A (fr) 1974-11-11 1975-08-07 Regulateur pour elevateur de decapeuse
BR7505645*A BR7505645A (pt) 1974-11-11 1975-09-03 Raspo-transportadora auto-carregadora removedora de terra,aperfeicoada
GB3832675A GB1467792A (en) 1974-11-11 1975-09-18 Adjustment mechanisms for scraper elevators

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US522574A US3916541A (en) 1974-11-11 1974-11-11 Adjustable mechanism for a scraper elevator

Publications (1)

Publication Number Publication Date
US3916541A true US3916541A (en) 1975-11-04

Family

ID=24081414

Family Applications (1)

Application Number Title Priority Date Filing Date
US522574A Expired - Lifetime US3916541A (en) 1974-11-11 1974-11-11 Adjustable mechanism for a scraper elevator

Country Status (4)

Country Link
US (1) US3916541A (fr)
BR (1) BR7505645A (fr)
CA (1) CA1025399A (fr)
GB (1) GB1467792A (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4159583A (en) * 1977-07-18 1979-07-03 Caterpillar Tractor Co. Elevating scraper up-stop mechanism
US4223460A (en) * 1979-02-08 1980-09-23 Caterpillar Tractor Co. Elevating scraper up-stop mechanism
US20040111926A1 (en) * 2002-12-13 2004-06-17 Smita Gandhi Rebuildable flight assembly for an elevating scraper
USD662116S1 (en) 2011-10-14 2012-06-19 Harden Roy E Light emitting tool chuck

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6626608B2 (en) 2000-10-16 2003-09-30 Jerry Olynyk Mobile rock crusher

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2984022A (en) * 1957-10-28 1961-05-16 Johnson Mfg Company Earth-moving machine
US3335888A (en) * 1965-03-29 1967-08-15 Kugler Henry Dale Material handler
US3465454A (en) * 1967-04-12 1969-09-09 Declark Inc Scraper elevator adjustment

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2984022A (en) * 1957-10-28 1961-05-16 Johnson Mfg Company Earth-moving machine
US3335888A (en) * 1965-03-29 1967-08-15 Kugler Henry Dale Material handler
US3465454A (en) * 1967-04-12 1969-09-09 Declark Inc Scraper elevator adjustment

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4159583A (en) * 1977-07-18 1979-07-03 Caterpillar Tractor Co. Elevating scraper up-stop mechanism
US4223460A (en) * 1979-02-08 1980-09-23 Caterpillar Tractor Co. Elevating scraper up-stop mechanism
US20040111926A1 (en) * 2002-12-13 2004-06-17 Smita Gandhi Rebuildable flight assembly for an elevating scraper
US6857208B2 (en) 2002-12-13 2005-02-22 Caterpillar Inc Rebuildable elevator flight for scraper
USD662116S1 (en) 2011-10-14 2012-06-19 Harden Roy E Light emitting tool chuck

Also Published As

Publication number Publication date
CA1025399A (fr) 1978-01-31
GB1467792A (en) 1977-03-23
BR7505645A (pt) 1976-08-10

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Date Code Title Description
AS Assignment

Owner name: IBJ SCHRODER BANK & TRUST COMPANY, NEW YORK

Free format text: SECURITY INTEREST;ASSIGNOR:TEREX CORPORATION;REEL/FRAME:006080/0201

Effective date: 19920327

AS Assignment

Owner name: TEREX CORPORATION, CONNECTICUT

Free format text: RELEASE OF SECURITY INTEREST AND REASSIGNMENT;ASSIGNOR:IBJ SCHRODER BANK & TRUST COMPANY, AS AGENT;REEL/FRAME:007312/0374

Effective date: 19920731