US3585741A - Tooth and guiding means therefor for excavating equipment - Google Patents

Tooth and guiding means therefor for excavating equipment Download PDF

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Publication number
US3585741A
US3585741A US741352A US3585741DA US3585741A US 3585741 A US3585741 A US 3585741A US 741352 A US741352 A US 741352A US 3585741D A US3585741D A US 3585741DA US 3585741 A US3585741 A US 3585741A
Authority
US
United States
Prior art keywords
socket
shank
digging
tooth
longitudinal
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
US741352A
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English (en)
Inventor
Helmut Heusler
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.)
CNH Industrial Baumaschinen GmbH
Original Assignee
O&K Orenstein and Koppel GmbH
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
Priority claimed from DE19671634917 external-priority patent/DE1634917A1/de
Priority claimed from DE19671634918 external-priority patent/DE1634918A1/de
Application filed by O&K Orenstein and Koppel GmbH filed Critical O&K Orenstein and Koppel GmbH
Application granted granted Critical
Publication of US3585741A publication Critical patent/US3585741A/en
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
    • E02F9/28—Small metalwork for digging elements, e.g. teeth scraper bits
    • E02F9/2808—Teeth
    • E02F9/2816—Mountings therefor
    • E02F9/2833—Retaining means, e.g. pins

Definitions

  • a tool, especially for earth-working implement in which the tool which has a tooth section and a shank section has its shank section clamped within a tongue-equipped sleeve by screwbolt means extending through .said tongue section and the adjacent shank section.
  • the present invention relates to a tooth and guiding means therefor for excavating equipment and in particular relates to a sleeve for the cutting edges of digging vessels of powerdriven equipment for digging and excavating purposes.
  • sleeves are employed which are welded into the bucket front of the digging vessel.
  • the teeth which are provided with one leg only are introduced into the sleeves and are secured against withdrawal by means of a pin passed through the sleeve and the tooth.
  • the holding pin frequently is no longer able to transmit the pulling forces and shears off so that the tooth is pulled out of the sleeve and passes between the rocks and together with said rocks gets into the .jaw crusher where it causes considerable damage.
  • an object of the present invention to provide an arrangement of the type mentioned above in which the tooth will be shaped so that it can be produced at lower cost while permitting at the same time to take advantage of the clamping effect for a better connection so that the drawbacks of heretofore known similar arrangements will be avoided.
  • This object has been realized according to the present invention by preventing the pulling out of the tooth from the sleeve or socket by a clamping effect brought about by means of a screw and a tongue in the sleeve at the inner end of the shank of the tooth.
  • that end of the sleeve which is remote from the cutting edge and that side of the sleeve which faces the back of the digging vessel are provided with a tongue formed by a slot and producing the clamping effect and are furthermore provided with two bores for receiving a screw.
  • teeth and sleeves of the above-mentioned type according to the present invention are unnecessarily expensive when used only or primarily for loading operations or for working in light soil where the primary object is the loosening of the soil.
  • This object has been realized by making the sleeve or socket forming the guiding means for the tooth of one single piece and of a U-shaped cross secton while that end of the sleeve which is remote from the cutting edge has its closed side pro vided with a slot to produce a clamping effect, said sleeve furthermore being provided with a bore for receiving a fastening screw.
  • one longitudinal wall of the sleeve is formed by the bottom plate of the loading bucket so that the sleeve will not only be simple in manufacture but may also have a completely smooth bottom side.
  • FIG. I is a longitudinal section through a tooth and the guidmeans therefor and differs from that of FIG. primarily by additional friction discs.
  • FIG. 5 illustrates a longitudinal section through a modified arrangement according to the invention and, more specifically, shows a longitudinal section through a tooth with a sleeve connected to the bottom plate of the bucket.
  • FIG. 6 is a side view of FIG. 5 as seen in the direction of the arrow B of FIG. 5 but without the tooth.
  • FIG. 7 is a section taken along the line VII-VII of FIG. 6.
  • the guiding means 1 for the tooth as illustrated in FIG. I are composed of two sections In and lb which, as shown in FIG. 1, are welded together at 2 to form the sleeve or socket. That end of sleeve or socket l which is adjacent the tooth 3 has its inner surface designed so as to form a steep cone 4 for receiving the teeth 3 in a wedging engagement under force exerted on the teeth during operation. The closed end of sleeve or socket 1 receives that.
  • That portion of tooth 3 which is remote from the cutting edge is provided with a steep cone 10 which corresponds to the conical portion 11 of the sleeve as shown in FIG. 3.
  • the clamping effect of tongue 7 may be improved by friction linings 8a which may be mounted between the leg or shank of tooth 3 and the inner walls of sleeve 1 in recesses 1d provided at the exit openings of the axially aligned opposite bores 9. Such an arrangement is clearly shown in FIG. 4.
  • clamping of the tooth may also be brought about by means of tongues formed by slots at the longitudinal sides or the bottom side of the sleeve.
  • steep cone 4 may also be replaced by a cylindrical bore.
  • the socket 11 for guiding the tooth is formed by a welding seam 12 by means of which the sleeve 11 is welded to the bottom plate of a loading shovel not shown in the drawing.
  • a screwbolt 14 which is passed through bores 15 and 16 in sleeve 11 and the bottom plate and through a passage 18 provided in the leg 17b of the tooth 17, the tooth I7 is secured against dropping out of socket.
  • the tongue 21 formed by the slot 20 is pressed against the shank or leg 17b of tooth 17 so that the latter is clamped against the bottom plate 13.
  • the inclined surfaces at 22 wedge the tooth into the socket under the forces of the digging operation.
  • the tooth and the sleeve according to the present invention are not limited to dredges but can be employed in connection with all other earth-moving and excavating equipment.
  • the cone 22 may also be replaced by parallel-guiding means.
  • the tongues instead of being provided on one of the three longitudinal sides of the sleeve, may also be provided in the bottom plate of the shovel or bucket.
  • the sleeves may be welded to the bottom side of the bottom plate.
  • said digging member comprising a socket extending longitudinally inwardly form the edge of the digging member, and a tooth having a digging end outwardly of said socket and a shank extending longitudinally into said socket from said digging end, the outer portion of said shank and the outer end of said socket having engaging complementary inclined surfaces converging longitudinally inwardly from the outer end of said socket with the transverse dimension across said surfaces being greatest on said shank, so that said inclined surfaces on said shank and socket may be forced into a wedging engagement, the inner end of said shank and of said socket each having a pair of Iongitudinal substantially parallel planar surfaces with the planar surfaces on said shank fitting between and substantially parallel to the longitudinal surfaces of said socket, said socket and said shank having aligned apertures extending through said longitudinal surfaces, the wall of one of said longitudinal planar surfaces on said socket having slits on opposite sides of its aperture to provide a resilient portion about said aperture, and a clamping
  • each of the inclined surfaces on said socket and shank is a conical surface.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Component Parts Of Construction Machinery (AREA)
  • Earth Drilling (AREA)
US741352A 1967-06-29 1968-07-01 Tooth and guiding means therefor for excavating equipment Expired - Lifetime US3585741A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19671634917 DE1634917A1 (enrdf_load_stackoverflow) 1967-06-29 1967-06-29
DE19671634918 DE1634918A1 (enrdf_load_stackoverflow) 1967-07-29 1967-07-29

Publications (1)

Publication Number Publication Date
US3585741A true US3585741A (en) 1971-06-22

Family

ID=25753949

Family Applications (1)

Application Number Title Priority Date Filing Date
US741352A Expired - Lifetime US3585741A (en) 1967-06-29 1968-07-01 Tooth and guiding means therefor for excavating equipment

Country Status (3)

Country Link
US (1) US3585741A (enrdf_load_stackoverflow)
FR (1) FR95375E (enrdf_load_stackoverflow)
GB (1) GB1239578A (enrdf_load_stackoverflow)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3952433A (en) * 1974-09-03 1976-04-27 Caterpillar Tractor Co. Spring clip retaining means for earthworking tips
US4013130A (en) * 1974-11-04 1977-03-22 Caterpillar Tractor Co. Ripper tip assembly
US4096653A (en) * 1974-10-31 1978-06-27 Caterpillar Tractor Co. Cartridge retaining means for earthworking tips
US20040031175A1 (en) * 2002-08-19 2004-02-19 Hohmann Robert A. Base edge protection system and method
WO2007022579A1 (en) * 2005-08-24 2007-03-01 James A Calderwood An improved ripper boot
US20080035359A1 (en) * 2004-07-16 2008-02-14 Dave Hundeby Cultivator Tine for a Soil Cultivation Tine Support Frame
KR200461655Y1 (ko) 2011-11-23 2012-07-30 임장범 평탄작업판 결합용 굴삭기의 버킷 투스
US20180142447A1 (en) * 2016-11-18 2018-05-24 Harnischfeger Technologies, Inc. Modular ground engagement tooling system
CN111954738A (zh) * 2018-04-13 2020-11-17 卡特彼勒公司 具有圆柱形轮廓的刀头和刀片组件
CN112004972A (zh) * 2018-04-13 2020-11-27 卡特彼勒公司 磨损构件
US20230130272A1 (en) * 2021-10-22 2023-04-27 Hamm Ag Roller tool for a soil processing roller
US11732445B2 (en) * 2018-04-13 2023-08-22 Caterpillar Inc. Retention system for attaching tool bits to a blade assembly

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2744497C3 (de) * 1977-10-04 1982-11-04 Intertractor Viehmann GmbH & Co, 5820 Gevelsberg Schaufelzahn für Bagger o.dgl.

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1220186A (en) * 1916-01-14 1917-03-27 George T Chambers Tooth for power-shovels.
US1951988A (en) * 1931-12-30 1934-03-20 Mckeel Van Cortright Digger tooth
US2040085A (en) * 1934-03-23 1936-05-12 Bucyrus Erie Co Dipper tooth
US2311463A (en) * 1941-12-12 1943-02-16 John W Page Bucket tooth
US2728366A (en) * 1952-07-11 1955-12-27 Albert F Woodell Rotary cutter heads with resilient blade holding arms
US2847921A (en) * 1954-05-03 1958-08-19 Towner Mfg Co Earth-penetrating point
US2952085A (en) * 1957-09-09 1960-09-13 Gerald A M Petersen Reversible tooth for earth digging equipment
US3091044A (en) * 1960-10-28 1963-05-28 Cleveland Trencher Co Digger tooth
US3117386A (en) * 1961-03-07 1964-01-14 Ferwerda Ray Tooth arrangement for earth digging apparatus
US3203488A (en) * 1962-09-07 1965-08-31 Pacific States Steel Corp Ripper tooth
US3268260A (en) * 1962-03-24 1966-08-23 Minsup Mining Supplies Mounting boxes and picks for coal-cutting machines
US3466772A (en) * 1967-05-25 1969-09-16 Corona Forge Co Resilient retaining means

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1220186A (en) * 1916-01-14 1917-03-27 George T Chambers Tooth for power-shovels.
US1951988A (en) * 1931-12-30 1934-03-20 Mckeel Van Cortright Digger tooth
US2040085A (en) * 1934-03-23 1936-05-12 Bucyrus Erie Co Dipper tooth
US2311463A (en) * 1941-12-12 1943-02-16 John W Page Bucket tooth
US2728366A (en) * 1952-07-11 1955-12-27 Albert F Woodell Rotary cutter heads with resilient blade holding arms
US2847921A (en) * 1954-05-03 1958-08-19 Towner Mfg Co Earth-penetrating point
US2952085A (en) * 1957-09-09 1960-09-13 Gerald A M Petersen Reversible tooth for earth digging equipment
US3091044A (en) * 1960-10-28 1963-05-28 Cleveland Trencher Co Digger tooth
US3117386A (en) * 1961-03-07 1964-01-14 Ferwerda Ray Tooth arrangement for earth digging apparatus
US3268260A (en) * 1962-03-24 1966-08-23 Minsup Mining Supplies Mounting boxes and picks for coal-cutting machines
US3203488A (en) * 1962-09-07 1965-08-31 Pacific States Steel Corp Ripper tooth
US3466772A (en) * 1967-05-25 1969-09-16 Corona Forge Co Resilient retaining means

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3952433A (en) * 1974-09-03 1976-04-27 Caterpillar Tractor Co. Spring clip retaining means for earthworking tips
US4096653A (en) * 1974-10-31 1978-06-27 Caterpillar Tractor Co. Cartridge retaining means for earthworking tips
US4013130A (en) * 1974-11-04 1977-03-22 Caterpillar Tractor Co. Ripper tip assembly
US20040031175A1 (en) * 2002-08-19 2004-02-19 Hohmann Robert A. Base edge protection system and method
US6848203B2 (en) * 2002-08-19 2005-02-01 Caterpillar Inc Base edge protection system and method
US20080035359A1 (en) * 2004-07-16 2008-02-14 Dave Hundeby Cultivator Tine for a Soil Cultivation Tine Support Frame
WO2007022579A1 (en) * 2005-08-24 2007-03-01 James A Calderwood An improved ripper boot
US20080229627A1 (en) * 2005-08-24 2008-09-25 Calderwood James A Ripper Boot
US7757778B2 (en) 2005-08-24 2010-07-20 Calderwood James A Ripper boot
RU2434998C2 (ru) * 2005-08-24 2011-11-27 Джеймс А. КАЛДЕРВУД Усовершенствованный рыхлительный наконечник
KR200461655Y1 (ko) 2011-11-23 2012-07-30 임장범 평탄작업판 결합용 굴삭기의 버킷 투스
US20180142447A1 (en) * 2016-11-18 2018-05-24 Harnischfeger Technologies, Inc. Modular ground engagement tooling system
US11396739B2 (en) * 2016-11-18 2022-07-26 Joy Global Surface Mining Inc Modular ground engagement tooling system
US12286771B2 (en) 2016-11-18 2025-04-29 Joy Global Surface Mining Inc Modular ground engagement tooling system
CN111954738A (zh) * 2018-04-13 2020-11-17 卡特彼勒公司 具有圆柱形轮廓的刀头和刀片组件
CN112004972A (zh) * 2018-04-13 2020-11-27 卡特彼勒公司 磨损构件
US11401685B2 (en) * 2018-04-13 2022-08-02 Caterpillar Inc. Serrated blade assembly using differently configured components
US11473273B2 (en) 2018-04-13 2022-10-18 Caterpillar Inc. Tool bit having a cylindrical profile and blade assembly
US11732445B2 (en) * 2018-04-13 2023-08-22 Caterpillar Inc. Retention system for attaching tool bits to a blade assembly
US11885098B2 (en) 2018-04-13 2024-01-30 Caterpillar Inc. Serrated blade assembly using differently configured components
CN112004972B (zh) * 2018-04-13 2024-04-16 卡特彼勒公司 磨损构件
US20230130272A1 (en) * 2021-10-22 2023-04-27 Hamm Ag Roller tool for a soil processing roller

Also Published As

Publication number Publication date
GB1239578A (enrdf_load_stackoverflow) 1971-07-21
FR95375E (fr) 1970-09-11

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