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GB2126627A - Dredging apparatus - Google Patents

Dredging apparatus Download PDF

Info

Publication number
GB2126627A
GB2126627A GB08319021A GB8319021A GB2126627A GB 2126627 A GB2126627 A GB 2126627A GB 08319021 A GB08319021 A GB 08319021A GB 8319021 A GB8319021 A GB 8319021A GB 2126627 A GB2126627 A GB 2126627A
Authority
GB
United Kingdom
Prior art keywords
hydraulic
vehicle
underwater
underwater pump
arm
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
Application number
GB08319021A
Other versions
GB2126627B (en
GB8319021D0 (en
Inventor
Toshinobu Araoka
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.)
Toyo Denki Industrial Co Ltd
Original Assignee
Toyo Denki Industrial Co Ltd
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 JP10763082U external-priority patent/JPS5914865U/en
Priority claimed from JP10762982U external-priority patent/JPS5914864U/en
Priority claimed from JP13084982U external-priority patent/JPS5935450U/en
Priority claimed from JP13434982U external-priority patent/JPS5938572U/en
Application filed by Toyo Denki Industrial Co Ltd filed Critical Toyo Denki Industrial Co Ltd
Publication of GB8319021D0 publication Critical patent/GB8319021D0/en
Publication of GB2126627A publication Critical patent/GB2126627A/en
Application granted granted Critical
Publication of GB2126627B publication Critical patent/GB2126627B/en
Expired legal-status Critical Current

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
    • E02F3/9243—Passive suction heads with no mechanical cutting means
    • 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
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/30—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with a dipper-arm pivoted on a cantilever beam, i.e. boom
    • 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
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/30—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with a dipper-arm pivoted on a cantilever beam, i.e. boom
    • E02F3/32—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with a dipper-arm pivoted on a cantilever beam, i.e. boom working downwardly and towards the machine, e.g. with backhoes
    • 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
    • E02F3/9243—Passive suction heads with no mechanical cutting means
    • E02F3/925—Passive suction heads with no mechanical cutting means with jets
    • 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
    • E02F3/9256—Active suction heads; Suction heads with cutting elements, i.e. the cutting elements are mounted within the housing of the suction head
    • E02F3/9268—Active suction heads; Suction heads with cutting elements, i.e. the cutting elements are mounted within the housing of the suction head with rotating cutting elements
    • E02F3/9275—Active suction heads; Suction heads with cutting elements, i.e. the cutting elements are mounted within the housing of the suction head with rotating cutting elements with axis of rotation parallel to longitudinal axis of the suction pipe
    • 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
    • E02F3/96—Dredgers; Soil-shifting machines mechanically-driven with arrangements for alternate or simultaneous use of different digging elements
    • E02F3/963—Arrangements on backhoes for alternate use of different tools

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Shovels (AREA)
  • Underground Or Underwater Handling Of Building Materials (AREA)
  • Operation Control Of Excavators (AREA)

Abstract

A dredging apparatus comprises a mobile vehicle, an articulated arm (2) or boom mounted on the vehicle, and a hydraulic underwater pump (3) attached to the tip end of the arm (2) or boom. The underwater pump (3) is driven by a hydraulic drive means which is mounted on the vehicle, or by a hydraulic device means used for driving the vehicle, a turntable and/or the arm (2) of the dredging apparatus, or a travelling construction engineering machine. The underwater pump (3) may be easily transported by the vehicle to a desired working position to improve the working efficiency. <IMAGE>

Description

SPECIFICATION Dredging apparatus This invention relates to a dredging apparatus for dredging rivers, pumping sand from a water bottom, discharging sediment or mud and sand, and excavating earth.
In the conventional dredging work of the civil engineering, a support structure or a tower for supporting a dredging apparatus is assembled in a working field. An underwater device such as an underwater pump, or an underwater agitating pump is suspended from the support structure and is submerged in the water, while a power supply source for driving the underwater device is mounted on the ground.
However, when the dredging work is carried out over a wider area, the submerged position of the underwater device has to be frequently changed so that the support structure or the tower for suspending the underwater device has to be disassembled and displaced or moved to be reconstructed on a new working position and the power supply source for driving the underwater device has to be also displaced or moved to the new working position. Consequently, the resetting of the underwater device takes a considerable time. Therefore, the dredging work is often interrupted making the dredging operation quite inefficient.
In the conventional excavating work, a travelling hydraulic shovel is used to draw up the mud and sand by means of a bucket mounted on the arm end thereof. However, when the water remains in the excavated grooves, or when the mud and sand settled in the waterway is dredged up, the work of drawing by the bucket is inefficient due to the presence of the water.
Therefore, it is a primary object of this invention to provide a mobile dredging apparatus which can easily travel to any dredging position to improve the working efficiency.
It is another object of the invention to provide a mobile dredging apparatus, which can move an underwater device together with the dredging apparatus to a working position to improve the working efficency.
It is a further object of this invention to provide a mobile dredging apparatus which can dredge in any working field without necessitating an electric power supply source or a hydraulic supply source.
In the accompanying drawings:- Figure 1 is a side view of a dredging apparatus according to the present invention; Figure 2 is a diagram of a hydraulic circuit used in the dredging apparatus; Figure 3 is a vertical section of a lower part of an underwater pump provided with agitating blades.
This invention now to be described with reference to Figure 1 comprises a dredging apparatus A having a hydraulic shovel 1 which is usually used as a travelling tracked vehicle for engineering work, and an underwater device such as an underwater pump 3 which is removably mounted on the tip end of an arm 2 of the shovel 1. Instead of the underwater pump 3, an underwater agitating pump may be used as required. The underwater pump 3 has an impeller 3a fixed to the lower end of an output shaft of a built-in hydraulic motor (not shown) near the lower opening. The underwater pump 3 is housed in a casing 3b, to which a suction hose 3c is connected. With a suction force caused by the rotation of the impeller 3a, a mixed fiuid consisting of sand and water is sucked into the casing 3b under pressure and then is transferred from the casing 3b to the suction hose 3c.The underwater pump 3 is also driven from a known hydraulic drive device.
The hydraulic shovel 1 is provided with a hydraulic drive device for driving the track 4 and for horizontally turning a turntable and for vertically tilting the arm 2. The hydraulic drive device includes a hydraulic pump operated by an engine E. When the hydraulic pressure is applied to hydraulic cylinders 5, 6, 7, the articulated arm 2 is tilted. Then, the shovel 1 is turned by the turntable to turn the arm 2.
The underwater pump 3 also utilizes the above hydraulic drive device for the hydraulic shovel 1 as a hydraulic drive device thereof.
The hydraulic circuit of the hydraulic device is schematically shown in Figure 2, and comprises a hydraulic circuit for driving the hydraulic shovel 1 and another hydraulic circuit for driving the underwater pump 3. First and second pumps P1, P2 are actuated by an engine E. T is an oil tank, andM1,M2, M3, M are, a one-side track driving motor, an otherside track driving motor, a shovel turning motor, and an underwater pump driving motor. The underwater pump driving motor M is connected to the hydraulic circuit which includes the second hydraulic pump P2. However it can be connected to any desired position, for example to the hydraulic circuit which includes the track driving motor M,. A directional control valve V is connected to the underwater pump 3 by way of oil supply and return lines T1, T2.
The upper end of the underwater pump 3 is connected by a pivot pin 10 to the tip end of the arm 2. A hole in which the pivot pin for pivoting a bucket is utilized for supporting the underwater pump 3.
A connecting rod R connects the pivot pin 10 with a piston rod of the hydraulic cylinder 7, whereby the underwater pump 3 is swingable on the tip end of the arm 2. The supply and return lines T1, T2 for supplying and discharging the pressure oil to and from the underwater pump 3 are provided along one side of the arm 2, and have one end connected to an oil inlet 3d and an oil outlet 3e respectively, and the other ends connected to an oil chamber of the hydraulic shovel 1. These supply and return lines T1,T2are made of flexible tubes to follow the tilting action of the arm 2.
In the dredging operation of the working apparatus A, the engine E is driven to bring the hydraulic shovel 1 to the dredging work field, and the hydraulic cylinders 5, 6, 7 are actuated simultaneously or separateiy to tilt the arm 2 which causes the submerging of the underwater pump 3 in the water.
When the underwater pump 3 is driven by the directional control valve V after being submerged in the water, the sand or mud below and around the underwater pump 3 are mixed with water by the rotation of the impeller 3a to form the mixed slurry, and such slurry is transferred through the hose 3c onto the ground. Then, the arm 2 is tilted and horizontally turned by the turntable to move the underwater pump 3 to another position to carry out new dredging work. Such moving of the underwater pump 3 is possible within the maximum turning radius of the arm 2.
The hydraulic shovel 1 can also easily travel to bring the underwater pump 3 to the desired dredging position to enable the dredging work in such wider area.
Agitating blades 3g are fixed to the tip end of the output shaft 3f the underwater pump 3 as shown in Figure 3 to agitate the mud or sand and water. These agitating blades 3g improves the pumping efficiency of the underwater pump 3.
If a jet nozzle is provided in the underwater pump 3 to mix the mud and sand in the periphery thereof with the water, the efficiency of the pumping operation is further enhanced.
Although, in this embodiment, the hydraulic shovel 1 is illustrated as the mobile vehicle, a truck or a tractor may be used if provided with the articulated arm and the hydraulic driving device for driving the underwater pump, and a bulldozer, a truck crane, a pile driver, or a crawler crane may be used without independently providing the hydraulic supply source for the driving of the underwater pump if provided with the hydraulic driving system.
The submerged position of the underwater pump may be changed at wiil, and the support structure or the tower for suspending the underwater pump therefrom is unnecessary so that the dredging work may be efficiently carried out over a wide range. The hydraulic drive device of the underwater pump is connected to the hydraulic drive device of the travelling car so that the underwater pump may be set and driven in any working field without having its own electric power supply source or hydraulic supply source.

Claims (5)

Claims
1. A dredging apparatus comprising a) a mobile vehicle b) an articulated arm mounted on said vehicle, c) a hydraulic underwater device attached to said arm, and d) a hydraulic drive device for driving said hydraulic underwater device, said hydraulic drive device being mounted on said vehicle.
2. A dredging apparatus according to claim 1, wherein said vehicle is a tracked vehicle driven by a hydraulic drive device.
3. A dredging apparatus according to claim 1, wherein said vehicle includes a turntable operated by a hydraulic drive device mounted on said vehicle, and said articulated arm is tiltable and extendable by said hydraulic drive device mounted on said turntable, and said hydraulic drive device of said hydraulic underwater device is connected to a hydraulic drive device for said turntable and said arm.
4. A dredging apparatus according to claim 3, wherein said vehicle is a travelling construction engineering machine.
5. A dredging apparatus substantially as described with reference to, and as illustrated in, the accompanying drawings.
GB08319021A 1982-07-14 1983-07-14 Dredging apparatus Expired GB2126627B (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP10763082U JPS5914865U (en) 1982-07-14 1982-07-14 dredging equipment
JP10762982U JPS5914864U (en) 1982-07-14 1982-07-14 dredging equipment
JP13084982U JPS5935450U (en) 1982-08-30 1982-08-30 working equipment
JP13434982U JPS5938572U (en) 1982-09-03 1982-09-03 working equipment

Publications (3)

Publication Number Publication Date
GB8319021D0 GB8319021D0 (en) 1983-08-17
GB2126627A true GB2126627A (en) 1984-03-28
GB2126627B GB2126627B (en) 1986-06-04

Family

ID=27469547

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08319021A Expired GB2126627B (en) 1982-07-14 1983-07-14 Dredging apparatus

Country Status (5)

Country Link
DE (2) DE8320352U1 (en)
FR (1) FR2530277B1 (en)
GB (1) GB2126627B (en)
IT (1) IT1161501B (en)
SE (1) SE462289B (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0209635A1 (en) * 1985-07-26 1987-01-28 Toyo Denki Industrial Co., Ltd. An underwater pump
WO1987005649A1 (en) * 1986-03-17 1987-09-24 Lännen Konepaja Oy Dredger
EP0408183A2 (en) * 1989-07-13 1991-01-16 Ellicott Machine Corporation Dredging module for use with conventional back hoe apparatus
EP1605103A2 (en) * 2004-06-10 2005-12-14 ZARDI COSTRUZIONI di Zardi Angelo &amp; C. S.n.c. Dredging device and apparatus
CN105155605A (en) * 2015-08-14 2015-12-16 吴增华 Amphibious shovel loader
EP2960375A1 (en) * 2014-06-26 2015-12-30 Dragflow S.r.l. Submersible pump
US10030359B2 (en) * 2013-11-04 2018-07-24 Boudewijn Gabriël Van Rompay Device and method for removing alluvial deposits from the bed of a body of water
US10450720B2 (en) * 2016-04-21 2019-10-22 Boudewijn Gabriël Van Rompay Device and method for removing alluvial deposits from the bed of a body of water

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20108725U1 (en) 2001-05-25 2001-08-30 Schenk, Jürgen, 70188 Stuttgart Digging device with suction device
DE10212296A1 (en) * 2002-03-20 2003-10-09 Carsten Deny Method for operating a floating dredger uses a drawing hose on floating bodies fixed at defined spots by a land link with density of material drawn regulated by a computer.
CN106522300B (en) * 2016-11-30 2018-08-07 中国舰船研究设计中心 A kind of reservoir desilting sand device of remote control
CN110984270B (en) * 2019-12-13 2022-01-14 上海友为工程设计有限公司 Novel jet type dredging equipment

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1242329A (en) * 1968-06-17 1971-08-11 Giovanni Faldi Dredging plant with compressed air pump and digging shovel for dredging muddy and sandy soundings, even of a compact texture
GB1398983A (en) * 1972-05-18 1975-06-25 British Gas Corp Excavating machines
GB1460133A (en) * 1974-03-08 1976-12-31 Orenstein & Koppel Ag Entrenching apparatus
GB1461162A (en) * 1973-11-23 1977-01-13 Marcona Corp Method and apparatus for removing a settled body of aprticulate material of the type that forms a pumpable slurry with a liquid

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1484760A1 (en) * 1960-06-04 1969-04-10 A U W Riedemann Ohg Suction and flushing excavators
FR1319432A (en) * 1962-01-19 1963-03-01 Turbo extractor
FR1399637A (en) * 1964-04-06 1965-05-21 Chantiers Navals De Chalon Sur Squeegee group
FI47423C (en) * 1965-09-18 1973-11-12 Mohn Submersible centrifugal pump.
US4307525A (en) * 1979-08-16 1981-12-29 Amtec Development Company Pneumatic-hydraulic pump dredge
FR2494747A1 (en) * 1980-11-24 1982-05-28 Sovran Jean Paul Dredging arm attachment for earthworking machine - comprises ram=actuated telescopic arm pivotally attached to existing jointed arm

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1242329A (en) * 1968-06-17 1971-08-11 Giovanni Faldi Dredging plant with compressed air pump and digging shovel for dredging muddy and sandy soundings, even of a compact texture
GB1398983A (en) * 1972-05-18 1975-06-25 British Gas Corp Excavating machines
GB1461162A (en) * 1973-11-23 1977-01-13 Marcona Corp Method and apparatus for removing a settled body of aprticulate material of the type that forms a pumpable slurry with a liquid
GB1460133A (en) * 1974-03-08 1976-12-31 Orenstein & Koppel Ag Entrenching apparatus

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0209635A1 (en) * 1985-07-26 1987-01-28 Toyo Denki Industrial Co., Ltd. An underwater pump
WO1987005649A1 (en) * 1986-03-17 1987-09-24 Lännen Konepaja Oy Dredger
EP0408183A2 (en) * 1989-07-13 1991-01-16 Ellicott Machine Corporation Dredging module for use with conventional back hoe apparatus
EP0408183A3 (en) * 1989-07-13 1992-01-02 Ellicott Machine Corporation Dredging module for use with conventional back hoe apparatus
EP1605103A2 (en) * 2004-06-10 2005-12-14 ZARDI COSTRUZIONI di Zardi Angelo &amp; C. S.n.c. Dredging device and apparatus
EP1605103A3 (en) * 2004-06-10 2006-04-05 ZARDI COSTRUZIONI di Zardi Angelo &amp; C. S.n.c. Dredging device and apparatus
US10030359B2 (en) * 2013-11-04 2018-07-24 Boudewijn Gabriël Van Rompay Device and method for removing alluvial deposits from the bed of a body of water
EP2960375A1 (en) * 2014-06-26 2015-12-30 Dragflow S.r.l. Submersible pump
US9863440B2 (en) 2014-06-26 2018-01-09 Dragflow S.R.L. Submersible pump
CN105155605A (en) * 2015-08-14 2015-12-16 吴增华 Amphibious shovel loader
CN105155605B (en) * 2015-08-14 2017-12-12 吴增华 A kind of amphibious shovel loader
US10450720B2 (en) * 2016-04-21 2019-10-22 Boudewijn Gabriël Van Rompay Device and method for removing alluvial deposits from the bed of a body of water

Also Published As

Publication number Publication date
DE8320352U1 (en) 1986-06-26
SE8303949L (en) 1984-01-15
SE462289B (en) 1990-05-28
SE8303949D0 (en) 1983-07-12
IT1161501B (en) 1987-03-18
FR2530277A1 (en) 1984-01-20
FR2530277B1 (en) 1985-06-28
DE3325476A1 (en) 1984-01-19
GB2126627B (en) 1986-06-04
GB8319021D0 (en) 1983-08-17

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20020714