US3921834A - Upper frame structure - Google Patents

Upper frame structure Download PDF

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Publication number
US3921834A
US3921834A US470858A US47085874A US3921834A US 3921834 A US3921834 A US 3921834A US 470858 A US470858 A US 470858A US 47085874 A US47085874 A US 47085874A US 3921834 A US3921834 A US 3921834A
Authority
US
United States
Prior art keywords
frame
brackets
boom
cross
cast
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
US470858A
Other languages
English (en)
Inventor
Barry Alan Scoggin
Harvey Albert Knell
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.)
Caterpillar Inc
Original Assignee
Caterpillar Tractor Co
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 Tractor Co filed Critical Caterpillar Tractor Co
Priority to US470858A priority Critical patent/US3921834A/en
Priority to CA224,725A priority patent/CA1018113A/en
Priority to DE2518606A priority patent/DE2518606C2/de
Priority to BE155957A priority patent/BE828595A/xx
Priority to FR7514852A priority patent/FR2271347B1/fr
Priority to JP50056238A priority patent/JPS5812422B2/ja
Application granted granted Critical
Publication of US3921834A publication Critical patent/US3921834A/en
Assigned to CATERPILLAR INC., A CORP. OF DE. reassignment CATERPILLAR INC., A CORP. OF DE. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: CATERPILLAR TRACTOR CO., A CORP. OF CALIF.
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • E02F9/10—Supports for movable superstructures mounted on travelling or walking gears or on other superstructures
    • E02F9/12—Slewing or traversing gears
    • E02F9/121—Turntables, i.e. structure rotatable about 360°
    • 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
    • E02F9/10—Supports for movable superstructures mounted on travelling or walking gears or on other superstructures

Definitions

  • brackets and other such members for mounting the boom and boom cylinders and the like require intricate and expensive fixtures and the like for accurate positioning.
  • brackets and other members required for structural strength also require expensive fixtures and intricate weld procedures.
  • a further object of the invention is to provide an improved frame structure that is susceptible to ease in fabrication.
  • a still further object of the present invention is to provide a method of fabricating frames that considerably reduces the need for complex and expensive fixtures for holding and positioning members of the frame for welding.
  • a frame structure for the upper platform of an excavator is constructed of a combination of rolled steel rails and cast steel crossmembers.
  • the rails converge at the forward end of the frame and are connected together by means of a cast-formed cross-member that is welded thereto.
  • the cross-member includes a plurality of brackets having bores that are in substantial alignment to permit a single boring operation to finish the bores.
  • FIG. 1 is a side elevational view of an excavator machine incorporating the present invention
  • FIG. 2 is a top elevational view of the front portion of the platform frame structure for the machine of FIG.
  • FIG. 3 is a view taken generally along lines IIIIII of FIG. 2;
  • FIG. 4 is a sectional view taken generally along lines IV-IV of FIG. 2;
  • FIG. 5 is a sectional view taken along lines V-V of FIG. 2.
  • FIG. 1 there is illustrated an excavator designated generally by the numeral 10 having a main frame indicated generally at 12 defining a slowing or rotating platform upon which an engine (not shown) and hydraulic components are mounted and enclosed in a housing indicated generally at 14.
  • An operators station and compartment is generally designated at 16 and mounted on the forward end of the platform with a boom 18 pivotally mounted adjacent thereto with a pair of boom cylinders 20 (one shown) operatively connected for raising and lowering the boom.
  • the main frame 12 is mounted for rotation by means of a swing mechanism 22 which in turn is secured to a lower frame assembly or car body 24.
  • the lower frame 24 is mounted on a pair of track roller frames 26 which in turn are mounted on track roller assemblies including an endless track 28 for translation of the machine.
  • FIG. 2 there is illustrated a top view of the forward section of the upper frame 12.
  • the operator station generally indicated at 16 comprises a portion of the frame illustrated in the upper right hand corner of the figure and extending forward of the portion of the frame to which is pivotally connected the boom and boom lift motors.
  • the critical part of the frame comprises a castformed cross-member 30 suitably connected by welding to a pair of converging main frame rails 32 and 34.
  • the main frame rails 32 and 34 may be of any suitable cross-sectional configuration, but are preferably boxshaped to enhance structural strength and ridigity.
  • the cross-member and rails are joined by welding at points 36 and 38.
  • a pair of boom lift cylinder brackets 40 and 42 and a slave cylinder bracket 44 are cast in place with member 30 as it is cast-formed. This provides a convenient method of easily forming and locating the brackets without the use of complicated fixtures.
  • the brackets are aligned so that the pin bores are coaxial and thus can be bored with a single straight through boring operation.
  • a pair of boom support brackets 52 and 54 are mounted on the forward end of the rails 32 and 34 and include pivot pins 56 and 58.
  • a tubular cross-member 60 is secured, such as by welding, between the two beams 32 and 34 at the forward end thereof just beneath the brackets 52 and 54 to add further strength and rigidity to the frame member.
  • the cross-member 60 is secured just above the main frame members 32 and 34 and just below and between the brackets to add further strength and rigidity to the brackets and the frame member.
  • the cross-member 30 is first formed with a body portion having a substantially C- configuration and including a plurality of brackets. Thereafter a plate 62 is welded over the open portion of the C-shaped channel thereby making member 30 a tubular structural member. This adds further rigidity to the member 30 permitting less complicated problems with casting the member and makes it considerably lighter.
  • the hydraulic lift motor or cylinder brackets 40 and 42 are mounted forward of and slightly below the boom pivot brackets 52 and 54.
  • An excavator platform frame assembly comprising in combination:
  • a lower frame for mounting a plurality of ground engaging wheels
  • an upper platform support frame having forward and rearward ends, for supporting a boom and an operators station for rotation about a vertical axis on said lower frame;
  • forwardly extending frame means defining an operator station support means at the forward end and to one side of said upper frame;
  • said boom pivot and support means comprising a pair of converging rails
  • the frame assembly of claim 3 including a plate welded across the open side of said C-shaped castformed member to form a generally tubular crossmember.
  • said operator station support means comprise a generally rectangular frame formed to one side and generally forward of the forward end of said converging rails.
  • the frame assembly of claim 4 comprising a generally tubular cross-member extending between and secured to said converging rails at said boom pivot brackets.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Body Structure For Vehicles (AREA)
  • Shovels (AREA)
US470858A 1974-05-17 1974-05-17 Upper frame structure Expired - Lifetime US3921834A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
US470858A US3921834A (en) 1974-05-17 1974-05-17 Upper frame structure
CA224,725A CA1018113A (en) 1974-05-17 1975-04-16 Upper frame structure
DE2518606A DE2518606C2 (de) 1974-05-17 1975-04-24 Rahmen für den Aufbau eines Baggers o.dgl.
BE155957A BE828595A (fr) 1974-05-17 1975-04-30 Superstructure de chassis pour excavateur
FR7514852A FR2271347B1 (enrdf_load_stackoverflow) 1974-05-17 1975-05-13
JP50056238A JPS5812422B2 (ja) 1974-05-17 1975-05-14 エクスカベ−タノ フレ−ム

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US470858A US3921834A (en) 1974-05-17 1974-05-17 Upper frame structure

Publications (1)

Publication Number Publication Date
US3921834A true US3921834A (en) 1975-11-25

Family

ID=23869355

Family Applications (1)

Application Number Title Priority Date Filing Date
US470858A Expired - Lifetime US3921834A (en) 1974-05-17 1974-05-17 Upper frame structure

Country Status (6)

Country Link
US (1) US3921834A (enrdf_load_stackoverflow)
JP (1) JPS5812422B2 (enrdf_load_stackoverflow)
BE (1) BE828595A (enrdf_load_stackoverflow)
CA (1) CA1018113A (enrdf_load_stackoverflow)
DE (1) DE2518606C2 (enrdf_load_stackoverflow)
FR (1) FR2271347B1 (enrdf_load_stackoverflow)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4163498A (en) * 1977-12-13 1979-08-07 Caterpillar Tractor Co. Tower assembly
JPH045400U (enrdf_load_stackoverflow) * 1990-04-27 1992-01-17
DE202015000719U1 (de) * 2015-01-29 2016-05-02 Liebherr-Werk Nenzing Gmbh Oberwagen für einen Kran oder eine Baumaschine

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2627983A (en) * 1948-09-11 1953-02-10 Jr William C Lathers Hoist attachment for tractors
US2790568A (en) * 1955-06-30 1957-04-30 Vernon G Mandt Swing-type material moving machine
US2856706A (en) * 1952-10-07 1958-10-21 Hacker Oskar Tracklaying tractor with exchangeable working implements
US3071254A (en) * 1959-12-30 1963-01-01 Clark Equipment Co Tractor with boom attachment

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3167194A (en) * 1962-12-24 1965-01-26 Davis Self-propelled excavating machine
DE2022427A1 (de) * 1970-05-08 1971-11-25 Schaeff Kg Maschfab Karl Fahrzeug mit zwei Arbeitsgeraeten

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2627983A (en) * 1948-09-11 1953-02-10 Jr William C Lathers Hoist attachment for tractors
US2856706A (en) * 1952-10-07 1958-10-21 Hacker Oskar Tracklaying tractor with exchangeable working implements
US2790568A (en) * 1955-06-30 1957-04-30 Vernon G Mandt Swing-type material moving machine
US3071254A (en) * 1959-12-30 1963-01-01 Clark Equipment Co Tractor with boom attachment

Also Published As

Publication number Publication date
DE2518606C2 (de) 1983-09-29
JPS50156203A (enrdf_load_stackoverflow) 1975-12-17
CA1018113A (en) 1977-09-27
JPS5812422B2 (ja) 1983-03-08
FR2271347B1 (enrdf_load_stackoverflow) 1979-05-18
FR2271347A1 (enrdf_load_stackoverflow) 1975-12-12
BE828595A (fr) 1975-10-30
DE2518606A1 (de) 1975-11-27

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Legal Events

Date Code Title Description
AS Assignment

Owner name: CATERPILLAR INC., 100 N.E. ADAMS STREET, PEORIA, I

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:CATERPILLAR TRACTOR CO., A CORP. OF CALIF.;REEL/FRAME:004669/0905

Effective date: 19860515

Owner name: CATERPILLAR INC., A CORP. OF DE.,ILLINOIS

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:CATERPILLAR TRACTOR CO., A CORP. OF CALIF.;REEL/FRAME:004669/0905

Effective date: 19860515