EP0236692A1 - Dispositif ayant une roue d'excavation - Google Patents
Dispositif ayant une roue d'excavation Download PDFInfo
- Publication number
- EP0236692A1 EP0236692A1 EP87100651A EP87100651A EP0236692A1 EP 0236692 A1 EP0236692 A1 EP 0236692A1 EP 87100651 A EP87100651 A EP 87100651A EP 87100651 A EP87100651 A EP 87100651A EP 0236692 A1 EP0236692 A1 EP 0236692A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cutting
- suction
- area
- cutting wheel
- suction chamber
- 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.)
- Granted
Links
Images
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
- E02F3/9212—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
- E02F3/9237—Suction wheels with axis of rotation in transverse direction of the longitudinal axis of the suction pipe
Definitions
- the invention relates to a method for operating a cutting wheel device and arrangements for carrying out the method according to the preamble of patent claim 1.
- DE-PS 3015 452 shows and describes a bucket wheel for a floating suction dredger which is rotatably mounted about a horizontal axis and which is provided on the outer circumference of its bucket wheel body at regular intervals with excavator buckets.
- Each excavator bucket has a U-shape in the radial cross section of the bucket wheel.
- the free blade ends are connected to the blade wheel body and have an inlet opening pointing forward in the direction of rotation of the blade wheel. This is larger than its outlet opening.
- the bucket wheel On the outer circumference, the bucket wheel has an opening that extends over its entire length between the U-legs of the excavator buckets and against which the suction mouth of a suction line that extends through a fixed side wall of the bucket wheel into the interior of the bucket wheel lies.
- the suction mouth is provided on its upper edge with an extension which extends at an angle directed against the direction of rotation of the bucket wheel through the opening and the outlet opening of the excavator buckets into the same.
- the outer end of the extension lies at the level of the axis of rotation of the paddle wheel.
- the excavator blades can be substantially rectangular or trapezoidal in radial cross-section and also trapezoidal in tangential cross-section.
- DE-OS 2907485 describes and shows a paddle wheel with a flat, cylindrical body that has at least one partially open side surface. Openings are provided in the cylindrical peripheral plane which open into blades, which are fastened to the blade wheel and are provided with cutting teeth.
- the shaft of the bucket wheel is supported by bearings that are located at the forked outer end of the excavator ladder of the excavator boom. The shaft can be driven via a gearwheel by means of a hydraulic motor.
- a box-shaped suction device is provided, which has an open side in the form of a circular arc as a suction opening and runs close to the inner surface of the cylindrical peripheral plane of the main part of the impeller body.
- the box-shaped suction device is attached by means of a flange screw connection to a fastening device which is held by the shaft of the paddle wheel.
- An adjusting device which consists of a piston and cylinder, is rotatably connected at one end to the excavator ladder and at the other end to the fastening device, so that the box-shaped suction device can be pivoted with the adjusting device.
- a manifold On one side of the suction device there is an opening into which a manifold opens, the other end of which is connected to a flexible tube, which in turn is connected to a suction tube by means of a bend.
- US Pat. No. 4,058,914 describes a suction excavator with a special type of suction head attached to the suction pipe.
- the suction head consists of a T-piece, the middle part of which is attached to the suction pipe, while the two side pieces are provided with mounting flanges.
- a cutting device which consists of a tubular part in which a drive motor is inserted, is arranged on each fastening flange.
- Each drive motor is provided with a cutting wheel, which consists of knives which protrude outwards and are arranged in a circle, the planes of the knives being inclined conically.
- the cutting device consists of a helical component, from which the cutting knives protrude outwards.
- a conduit flap is pivotally mounted about an axis that runs perpendicular to the connector of the T-shaped distributor. This flap opens at its front end in a slide which closes the connection opening of one suction pipe in one position and the suction opening of the other suction pipe in the other position. The flap can be adjusted from the ship using an adjustment device.
- DE-AS 2305859 shows and describes a cutting suction head with a pair of cutting discs arranged at the ends of a driven shaft, of which each cutting disc carries a number of approximately strip-shaped cutting blades arranged along the circumference of the cutting disc and extending in the radial and axial direction, between which the suction pipe extends with its suction opening, the suction pipe being arranged above the driven shaft and a guide plate extending between the cutting blades of the pair of cutting disks being provided, which extends from its attachment point at the drinking opening along the circumference of the cutting disks to near the underside of the cutting head extends and in which the cutting discs rotate in the direction of the suction opening.
- the suction material is conveyed counter to gravity into the suction tube opening provided above the drive shaft.
- a reduced degree of filling of the intake manifold can be determined.
- the invention has for its object to provide a paddle wheel cutting device of the type mentioned, in which it is ensured that the broach cut by the cutting bracket is removed with a high degree of filling.
- the invention solves this problem by the features of the main claim. Further preferred embodiments are the subject of the dependent claims.
- the solution according to the invention retains the advantages of constant and unambiguous cutting conditions which are characteristic of bucket-wheel excavator operation, and a constant removal of the broaching material can be guaranteed with good efficiency.
- the material released from the cutting edges is sucked off directly through the cutting edge openings.
- the hydraulic conditions in the suction opening area are improved because the cut soil is fed directly onto the suction opening due to the direction of rotation of the cutting wheels.
- a very high degree of filling can be achieved.
- As a result of the possibility of blocking the other suction chamber of the cutting wheel which does not convey the material it is prevented that additional water is sucked in and transported along.
- the cutting wheel device has two cutting wheels 1a and 1b, which are driven hydraulically together by a hydraulic motor 2 integrated in the support structure of the intake manifold boom, together with a transmission 3.
- the suction pipe 4 ends in two suction chambers 5a and 5b provided within the centrally arranged wheel carrier, which are separated by a central wall 6.
- a control flap 7 is provided which, depending on the swivel direction of the suction pipe boom, connects only one of the suction chambers 5a or 5b to the suction pipe 4 during excavation work, which is assigned to the conveying cutting wheel 1a or 1b.
- Cutting brackets 8a and 8b open side cutting openings for receiving the cleared goods into the suction chambers.
- suction chambers 5a and 5b are mainly provided in the lower region of the cutting wheels 1a and 1b, that is to say directly in front of the floor to be cut. It can also be seen that the cutting brackets 8a and 8b are crescent-shaped. Their arrangement is convex in the direction of rotation.
- FIG. 2 also shows that the suction chambers 5a and 5b are designed with suction chamber extensions 10a and 10b up to the inner area of the cutting wheels 1a and 1b.
- the suction chamber extensions can advantageously be guided up to the inner cutting bracket edges 11a and 11b.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
- Shovels (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19863607838 DE3607838A1 (de) | 1986-03-10 | 1986-03-10 | Schneidradvorrichtung |
DE3607838 | 1986-03-10 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0236692A1 true EP0236692A1 (fr) | 1987-09-16 |
EP0236692B1 EP0236692B1 (fr) | 1991-03-27 |
Family
ID=6295929
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP87100651A Expired - Lifetime EP0236692B1 (fr) | 1986-03-10 | 1987-01-19 | Dispositif ayant une roue d'excavation |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0236692B1 (fr) |
JP (1) | JPH089873B2 (fr) |
AU (1) | AU586076B2 (fr) |
CA (1) | CA1266280A (fr) |
DE (2) | DE3607838A1 (fr) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1992007146A1 (fr) * | 1990-10-16 | 1992-04-30 | Coal Recoveries Pty., Ltd. | Ensemble de roue coupante |
US6578294B2 (en) | 2001-02-02 | 2003-06-17 | Esco Corporation | Dredge cutterhead |
GB2483927A (en) * | 2010-09-24 | 2012-03-28 | Basement Masters Ltd | Hand operable excavator with frame for lateral excavation |
US20150008719A1 (en) * | 2013-07-02 | 2015-01-08 | Galen B. Merrell | Prospecting Immersable for Gold or P.I.G. |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE473767C (de) * | 1929-03-22 | Luebecker Maschb Ges | Saugkopf fuer Schwimmbagger mit vor der Saugoeffnung arbeitenden Grabwerkzeugen | |
FR1124832A (fr) * | 1954-05-28 | 1956-10-18 | Mineraal Technologisch Inst | Perfectionnement aux dispositifs de découpage de terrains, en particulier, pour drague aspiratrice |
US3171220A (en) * | 1961-05-03 | 1965-03-02 | Konink Mij Tot Het Uitoeren Va | Suction dredge having rotatable digging tool |
DE1484781A1 (de) * | 1964-07-24 | 1969-04-03 | Fa Hermann Suerken | Schwimmender Saugbagger mit einem Schaufelrad am Ende des Saugrohres |
DE2305859A1 (de) | 1972-02-04 | 1973-08-09 | Ihc Holland Nv | Schneidvorrichtung mit saumitteln |
US4058914A (en) | 1975-12-15 | 1977-11-22 | Kiss Sandor G | Alternate flow suction dredge |
DE2907485A1 (de) | 1978-02-27 | 1979-09-06 | Stork Conrad Bv | Schaufelrad fuer einen nassbagger |
DE3015452A1 (de) | 1979-04-20 | 1980-10-30 | Ihc Holland Nv | Schaufelrad fuer einen schwimmsaugbagger |
DE3426328A1 (de) * | 1984-07-17 | 1986-01-30 | O & K Orenstein & Koppel Ag, 1000 Berlin | Schaufelradschneidvorrichtung |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1634808A1 (de) * | 1967-11-28 | 1970-08-20 | Paul Fortmeier | Schaufelradsaugruessel fuer Saugbagger |
NL8101842A (nl) * | 1981-04-14 | 1982-11-01 | Ihc Holland Nv | Graafwiel. |
US4702023A (en) * | 1986-09-30 | 1987-10-27 | Ellicott Machine Corporation | Cutter wheel for a dredge |
-
1986
- 1986-03-10 DE DE19863607838 patent/DE3607838A1/de active Granted
-
1987
- 1987-01-19 EP EP87100651A patent/EP0236692B1/fr not_active Expired - Lifetime
- 1987-01-19 DE DE8787100651T patent/DE3768836D1/de not_active Expired - Lifetime
- 1987-03-09 CA CA000531499A patent/CA1266280A/fr not_active Expired - Lifetime
- 1987-03-10 AU AU69866/87A patent/AU586076B2/en not_active Ceased
- 1987-03-10 JP JP62053210A patent/JPH089873B2/ja not_active Expired - Fee Related
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE473767C (de) * | 1929-03-22 | Luebecker Maschb Ges | Saugkopf fuer Schwimmbagger mit vor der Saugoeffnung arbeitenden Grabwerkzeugen | |
FR1124832A (fr) * | 1954-05-28 | 1956-10-18 | Mineraal Technologisch Inst | Perfectionnement aux dispositifs de découpage de terrains, en particulier, pour drague aspiratrice |
US3171220A (en) * | 1961-05-03 | 1965-03-02 | Konink Mij Tot Het Uitoeren Va | Suction dredge having rotatable digging tool |
DE1484781A1 (de) * | 1964-07-24 | 1969-04-03 | Fa Hermann Suerken | Schwimmender Saugbagger mit einem Schaufelrad am Ende des Saugrohres |
DE2305859A1 (de) | 1972-02-04 | 1973-08-09 | Ihc Holland Nv | Schneidvorrichtung mit saumitteln |
US4058914A (en) | 1975-12-15 | 1977-11-22 | Kiss Sandor G | Alternate flow suction dredge |
DE2907485A1 (de) | 1978-02-27 | 1979-09-06 | Stork Conrad Bv | Schaufelrad fuer einen nassbagger |
DE3015452A1 (de) | 1979-04-20 | 1980-10-30 | Ihc Holland Nv | Schaufelrad fuer einen schwimmsaugbagger |
DE3426328A1 (de) * | 1984-07-17 | 1986-01-30 | O & K Orenstein & Koppel Ag, 1000 Berlin | Schaufelradschneidvorrichtung |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN, Band 7, Nr. 199 (M-240)[1344], 3. September 1983; & JP-A-58 98 533 (MITSUBISHI JUKOGYO K.K.) 11-06-1983 * |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1992007146A1 (fr) * | 1990-10-16 | 1992-04-30 | Coal Recoveries Pty., Ltd. | Ensemble de roue coupante |
US6578294B2 (en) | 2001-02-02 | 2003-06-17 | Esco Corporation | Dredge cutterhead |
USRE45648E1 (en) | 2001-02-02 | 2015-08-11 | Esco Corporation | Dredge cutterhead |
GB2483927A (en) * | 2010-09-24 | 2012-03-28 | Basement Masters Ltd | Hand operable excavator with frame for lateral excavation |
US20150008719A1 (en) * | 2013-07-02 | 2015-01-08 | Galen B. Merrell | Prospecting Immersable for Gold or P.I.G. |
Also Published As
Publication number | Publication date |
---|---|
AU586076B2 (en) | 1989-06-29 |
DE3768836D1 (de) | 1991-05-02 |
CA1266280A (fr) | 1990-02-27 |
EP0236692B1 (fr) | 1991-03-27 |
JPS62220621A (ja) | 1987-09-28 |
JPH089873B2 (ja) | 1996-01-31 |
AU6986687A (en) | 1987-09-17 |
DE3607838A1 (de) | 1987-09-24 |
DE3607838C2 (fr) | 1991-04-18 |
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