NL7415416A - Rotary excavator head tooth - has front surface between plus and minus thirty degrees to rotor axis plane - Google Patents

Rotary excavator head tooth - has front surface between plus and minus thirty degrees to rotor axis plane

Info

Publication number
NL7415416A
NL7415416A NL7415416A NL7415416A NL7415416A NL 7415416 A NL7415416 A NL 7415416A NL 7415416 A NL7415416 A NL 7415416A NL 7415416 A NL7415416 A NL 7415416A NL 7415416 A NL7415416 A NL 7415416A
Authority
NL
Netherlands
Prior art keywords
plus
rotor axis
front surface
thirty degrees
axis plane
Prior art date
Application number
NL7415416A
Other languages
Dutch (nl)
Original Assignee
Hollandsche Aanneming Bv
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 Hollandsche Aanneming Bv filed Critical Hollandsche Aanneming Bv
Publication of NL7415416A publication Critical patent/NL7415416A/en

Links

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
    • E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
    • E02F3/90—Component parts, e.g. arrangement or adaptation of pumps
    • E02F3/92—Digging elements, e.g. suction heads
    • E02F3/9293—Component parts of suction heads, e.g. edges, strainers for preventing the entry of stones or the like
    • 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
    • E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
    • E02F3/90—Component parts, e.g. arrangement or adaptation of pumps
    • E02F3/92—Digging elements, e.g. suction heads
    • E02F3/9212—Mechanical digging means, e.g. suction wheels, i.e. wheel with a suction inlet attached behind the wheel
    • E02F3/9225—Mechanical digging means, e.g. suction wheels, i.e. wheel with a suction inlet attached behind the wheel with rotating cutting elements
    • 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
    • E02F9/2866—Small metalwork for digging elements, e.g. teeth scraper bits for rotating digging elements

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (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)

Abstract

The tooth front cutting surface is at right angles to the direction of movement. This surface is at an angle to a line passing through the rotor axis of between plus or minus 30 degrees. The angle can be between plus and minus 15 degrees, or O. The tooth edges can be radiused or chamfered, and it can have a clearance angle of between 0 and 15 degrees. The cutting surface can comprise an insert of hard metal such as tungsten carbide. Compared with existing designs the surface is smaller, and wear much reduced.
NL7415416A 1974-09-09 1974-11-26 Rotary excavator head tooth - has front surface between plus and minus thirty degrees to rotor axis plane NL7415416A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3933074 1974-09-09

Publications (1)

Publication Number Publication Date
NL7415416A true NL7415416A (en) 1976-03-11

Family

ID=10408985

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7415416A NL7415416A (en) 1974-09-09 1974-11-26 Rotary excavator head tooth - has front surface between plus and minus thirty degrees to rotor axis plane

Country Status (1)

Country Link
NL (1) NL7415416A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4319415A (en) * 1979-02-02 1982-03-16 Vereinigte Edelstahlwerke Aktiengesellschaft Cutter head for suction dredges
WO2011003869A1 (en) * 2009-07-06 2011-01-13 Dredging International N.V. Cutter head for dredging ground, cutter suction dredger provided with such a cutter head and use of the cutter head for dredging ground
CN114411848A (en) * 2022-01-04 2022-04-29 中交疏浚技术装备国家工程研究中心有限公司 Reamer head and cutter tooth spiral gradual arrangement design implementation method thereof

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4319415A (en) * 1979-02-02 1982-03-16 Vereinigte Edelstahlwerke Aktiengesellschaft Cutter head for suction dredges
WO2011003869A1 (en) * 2009-07-06 2011-01-13 Dredging International N.V. Cutter head for dredging ground, cutter suction dredger provided with such a cutter head and use of the cutter head for dredging ground
BE1018585A3 (en) * 2009-07-06 2011-04-05 Dredging Int CUTTING HEAD FOR DAGGING GROUND, CUTTING DRAINER PROVIDED WITH SUCH CUTTING HEAD, AND USE OF THE CUTTING HEAD FOR Dredging Ground.
CN114411848A (en) * 2022-01-04 2022-04-29 中交疏浚技术装备国家工程研究中心有限公司 Reamer head and cutter tooth spiral gradual arrangement design implementation method thereof

Similar Documents

Publication Publication Date Title
GB1466453A (en) Circular saw blade
ES444989A1 (en) Cutting tool and method for making same
GB1379097A (en) Rotatable cutter heads for use in cutter dredgers
NL7415416A (en) Rotary excavator head tooth - has front surface between plus and minus thirty degrees to rotor axis plane
GB1415101A (en) Earth working machines
US3882749A (en) Beavertooth cutting edge
GB1080856A (en) Improved tooth for earthworking tool
GB1481278A (en) Chisel assembly in a coal planing tool
GB947440A (en) Drag bit blade
GB1214259A (en) Improvements relating to band saws
US2120963A (en) Power meat band saw
GB1239074A (en)
US2317932A (en) Replacement point for rebuilding dragline bucket teeth
GB1300102A (en) Rasp blades
FR2317986A1 (en) Low power cutting tool for cast iron - has edge indentations of continuous uniform trapezoidal form of ceramic or carbide
SU618209A1 (en) Made-up tool for working holes
SU709289A1 (en) Roller for flattening saw teeth
JPS5695526A (en) Boring reamer
GB813970A (en) Shear
GB2002661A (en) Improvements in cutting edges of rotary drills and drill bits
GB1323679A (en) Hand tool for cutting cable sheaths
GB1485742A (en) Milling cutter
GB1212200A (en) Improvements in or relating to cutting assemblies
US1294257A (en) Counterbore.
FR2276150A1 (en) Cutter with synchronously rotating cutting edges - greater dia edge of one cutter is inclined to other edge and to rotational axis