CN102359134B - Reamer with hydraulic characteristic for dredger - Google Patents
Reamer with hydraulic characteristic for dredger Download PDFInfo
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- CN102359134B CN102359134B CN 201110226676 CN201110226676A CN102359134B CN 102359134 B CN102359134 B CN 102359134B CN 201110226676 CN201110226676 CN 201110226676 CN 201110226676 A CN201110226676 A CN 201110226676A CN 102359134 B CN102359134 B CN 102359134B
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- reamer
- tool arm
- ring
- large ring
- dredger
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Abstract
The invention relates to a reamer with hydraulic characteristic for a dredger, and belongs to the technical field of environment-friendly dredging. The reamer with hydraulic characteristic for the dredger comprises a tool arm, a hub and a big ring. The reamer is characterized in that: a depression (10) is formed at the inner side of the tool arm (3), an inner ring cavity is formed in the big ring (6), and the depression (10) at the inner side of the tool arm (3) is extended and communicated with the ring cavity of the big ring (6) to play a role in guiding mud to flow in the direction of the big ring (6). The reamer has the advantages of simple structure, convenience for implementing, good soil adaptability, no sand leakage, high construction efficiency and the like.
Description
Technical field
The invention belongs to the technology for environmental dredging field, particularly relate to the reamer that a kind of dredger has hydraulic characteristic(s).
Background technology
At present, in the dredging industry, reamer is mainly the excavation type for underwater soil, uses the crown cutter that active tooth the most generally is housed.Because now the foreign-going ship tonnage is increasing, absorb water more and more deeplyer, so the degree of depth that dredge boat need to excavate is also just more and more darker, the soil property of excavation is more and more harder.In order to adapt to the demand of hard soil, the reamer form is short by hypermutation, and originally the top is roomy, and the top is narrow and small now, and the tool arm thickening has weighed a lot.Simultaneously the curve of reamer tool arm is perfect gradually, is conducive to mud and enters reamer inside.
The wheel hub of reamer is connected on driving shaft, driving shaft rotarily drives the rotation of reamer wheel hub, and under the drive of wheel hub, tool arm rotates around center line, be fixed on the cutter tooth cutting underwater soil on tool arm, destroy the earth internal construction, the earth of disturbance simultaneously mixes formation mud with water, and these mud are under water under the swabbing action of pump, enter dredging tube by mud suction mouth, there is a big chunk mud could not enter mud suction mouth in this process, but leaks from the gap of two tool arms, form residual.Because the research to reamer is more and more deep, the curved surface form of reamer tool arm was constantly improved in recent years, and make reamer have and necessarily entrainment the ability (similar and axial-flow pump) that peripheral fluid enters reamer inside, but this effect and not obvious.
U.S.'s patent has proposed a kind of scheme of Leakage prevention, in the large ring of reamer side, specific shovel board is set, and is cut in order to guiding the silt that gets off and arrives the mud suction mouth place.Yet, because these shovel boards only are extended with the limit for height degree, therefore before silt enters mud suction mouth, still can spill between tool arm.
Certain patent of Holland has also proposed a kind of scheme that prevents that cutter suction dredger from leaking, and this scheme allows mud suction mouth go deep into as far as possible reamer inside, improves to suck effect, reduces the purpose of leaking to reach.Yet this scheme can not stop the leakage between two tool arms, especially due to the centrifugal action that produces in the reamer rotary course.
Practice confirms have quite a few to remain in the bottom in the silt under being cut, and forms residual layer, after a yaw, do not putting crane span structure, do not advance when in the situation of chassis, former road oppositely swings back, also has residual silt, especially to the harder engineering of soil property especially like this.Prior art causes cost to strengthen, the problems such as engineering Efficiency Decreasing.
Summary of the invention
The problem that the present invention exists for solving prior art provides a kind of dredger that the reamer of hydraulic characteristic(s) is arranged.
The object of the invention be to provide a kind of have simple in structure, be convenient to realize, adapt to that soil property is good, silt is difficult for leaking, the dredger of efficiency of construction high has the reamer of hydraulic characteristic(s).
The solution of the present invention is mainly improved at tool arm and two parts of large ring, there is depression the tool arm inboard, is provided with simultaneously the groove of arc at the tool arm inside edge, and large ring takes top roomy, the bottom is narrow and small, the cavity that is bell mouth shape reduces gradually along the water (flow) direction area of passage like this, improves flow velocity, be equivalent to the suction inlet reach, this invention is simple in structure, is convenient to realize, but successful.
This programme is designed with the part of depression in the tool arm inboard, be designed with simultaneously the groove of circular arc at the tool arm inside edge.when the reamer rotary work, be arranged on the cutter tooth cutting earth of tool arm outward flange one side, be mixed into mud by what the earth that loosened had, what have is block silt, enter reamer inside, due to the tool arm inward flange than the more close center line of outward flange, mud and silt are at the inboard inwardly edge flowing of the downward tool arm of driveing of tool arm, when mud and silt arrive the tool arm inward flange, will leak out in the gap of tool arm greatly, but the present invention is when arriving inside edge, owing to being designed with circular-arc groove, mud and silt will be kept off back, reduce and reveal, meanwhile, groove also has guiding function in the axial direction, final under the driveing of tool arm, mud and silt are transported to the place near large ring of reamer inside, reduce and reveal.
Dredger of the present invention has the reamer of hydraulic characteristic(s) to adopt following technical scheme:
A kind of dredger has the reamer of hydraulic characteristic(s), comprises tool arm, wheel hub and large ring, it is characterized in that: there is depression the tool arm inboard, and large ring has interior ring cavity, and the inboard depression of tool arm is extended and is communicated with large ring ring cavity, plays the effect of the water conservancy diversion that mud flows to large ring direction.
Dredger of the present invention has the reamer of hydraulic characteristic(s) can also adopt following technical measures:
Described dredger has the reamer of hydraulic characteristic(s), is characterized in: the tool arm inside edge has arcuate furrow.
Described dredger has the reamer of hydraulic characteristic(s), is characterized in: in large ring, the ring cavity structure for ring top is roomy greatly, is encircled greatly the bottom and is narrowed the cavity body structure that is bell mouth shape, and the roomy ring cavity in top is undertaken on the end of tool arm groove.
Described dredger has the reamer of hydraulic characteristic(s), is characterized in: the tool arm outer edge is placed with toothholder, and a dismountable cutter tooth is housed on each toothholder.
The advantage that the present invention has and good effect:
Dredger has the reamer of hydraulic characteristic(s), owing to having adopted the brand-new technical scheme of the present invention, compared with prior art, the large ring of reamer of the present invention top is roomy, being bell mouth shape shrinks gradually, large ring bottom becomes narrow, when carrying the mud that gets off and silt to arrive large ring place by tool arm, because large ring is whole circular arc, silt is difficult for leaking out reamer, add tool arm and axially push the effect of silt, near the mud suction mouth large ring is just easier siphons away silt, plays equally and reduces the effect of revealing.
The reamer that before the present invention obviously is better than, various minimizings are leaked.This scheme had both guaranteed to effectively reduce again into the area of mud passage the chance that silt leaks out reamer, and was simultaneously simple in structure, was adapted to the soil property of the overwhelming majority, was convenient to realize, operating efficiency is high.
Description of drawings
Fig. 1 is reamer external overall structural representation of the present invention;
Fig. 2 is reamer inner body structural representation;
Fig. 3 is the horizontal sectional structure schematic diagram of reamer;
Fig. 4 is the vertical sectional structure schematic diagram of reamer;
Fig. 5 is reamer tool arm structural representation.
In figure, 1, reamer, 2, wheel hub, 3, tool arm, 4, outward flange, 5, inward flange, 6, large ring, 7, encircle top greatly, 8, encircle the bottom greatly, 9, groove, 10, depression.
The specific embodiment
For further understanding technology contents of the present invention, Characteristic, hereby enumerate following instance, and be described with reference to the accompanying drawings as follows:
With reference to accompanying drawing 1 to Fig. 5.
A kind of dredger has the reamer of hydraulic characteristic(s), comprises tool arm, wheel hub and large ring, and there is depression 10 its tool arm 3 inboards, and encircling greatly 6 has interior ring cavity, and the inboard depression 10 of tool arm is extended and is communicated with large ring 6 ring cavities, plays the effect of the water conservancy diversion that mud flows to large ring 6 directions.There is arcuate furrow 9 at tool arm 3 inward flange 4 places.Large ring 6 interior ring cavity structures are that ring top 7 is roomy greatly, encircle greatly bottom 8 and narrow the cavity body structure that is bell mouth shape, and the roomy ring cavity in top 7 is undertaken on the end of tool arm groove 9.Tool arm 3 outer edge are placed with toothholder, and a dismountable cutter tooth is housed on each toothholder.
Specific implementation process of the present invention:
Cutter suction dredger is with reamer 1 with hydraulic characteristic(s), and this reamer is connected with driving shaft on being positioned at crane span structure by the wheel hub screw thread.Mud suction mouth is equipped with in its back lower place.During construction, reamer stretches into mud layer under water, rotates cutting and loose earth around central axis.Earth is pumped by mud suction mouth by dredge pump again.This reamer 1 comprises the large ring 6 that is bell mouth shape wide at the top and narrow at the bottom, wheel hub 2, extends to from large ring 6 a plurality of tool arms 3 that on wheel hub 2, axial symmetry distributes; Tool arm 3 is placed with some toothholders hereinafter to be referred as tool arm outward flange 4 by certain angle away from the edge of central axis one side, on each seat, a detachable cutter tooth is housed.There is depression 10 the tool arm inboard, is designed with the groove 9 of circular arc hereinafter to be referred as tool arm inward flange 5 at the edge near central axis one side.The large ring 6 of this reamer is divided into upper and lower two parts, and the large ring of reamer top 7 is roomy, is bell mouth shape and shrinks gradually, encircles greatly narrow that bottom 8 becomes.
when reamer 1 carries out operation under water, cutter tooth on tool arm outward flange 4 can cut underwater soil, what the silt that has loosened had is mixed into mud with water, what have is block silt, enter reamer 1 inside, due to tool arm inward flange 5 than the more close center line of outward flange 4, mud and silt under the driveing of tool arm 3 along the inboard depression of the tool arm 10 inside edge flowings in position, when mud and silt arrive the tool arm inward flange, will let out in the gap of tool arm greatly, but in the present invention, when silt arrives inside edge, owing to being designed with circular-arc groove 9, mud and silt will be kept off back, reduce and leak.Meanwhile, groove 9 also has guiding function in the axial direction, final under the driveing of tool arm 3, mud and silt are transported to the place near large ring 6 of reamer inside, when the mud of being carried by tool arm 3 and silt arrive large ring 6 place, due to the large ring circular arc that is integral body, silt is difficult for leaking out reamer 1, add tool arm 3 and axially push the effect of silt, near the mud suction mouth large ring is just easier siphons away silt, finally plays and reduces the effect of leaking.
Claims (2)
1. a dredger has the reamer of hydraulic characteristic(s), comprise tool arm, wheel hub and large ring, it is characterized in that: there is depression (10) tool arm (3) inboard, large ring (6) has interior ring cavity, tool arm (3) inboard cave in (10) extends the large ring of connection (6) ring cavity, plays mud to the effect of the mobile water conservancy diversion of large ring (6) direction; Tool arm (3) inward flange (4) has been located arcuate furrow (9); Large ring (6) interior ring cavity structure is that large ring top (7) is roomy, encircles greatly bottom (8) and narrows the cavity body structure that is bell mouth shape, encircles greatly the end that the roomy ring cavity in top (7) is undertaken on tool arm groove (9).
2. the reamer of hydraulic characteristic(s) is arranged according to dredger claimed in claim 1, it is characterized in that: tool arm (3) outer edge is placed with toothholder, and a dismountable cutter tooth is housed on each toothholder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110226676 CN102359134B (en) | 2011-08-08 | 2011-08-08 | Reamer with hydraulic characteristic for dredger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110226676 CN102359134B (en) | 2011-08-08 | 2011-08-08 | Reamer with hydraulic characteristic for dredger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102359134A CN102359134A (en) | 2012-02-22 |
| CN102359134B true CN102359134B (en) | 2013-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110226676 Active CN102359134B (en) | 2011-08-08 | 2011-08-08 | Reamer with hydraulic characteristic for dredger |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE538940C2 (en) | 2012-05-30 | 2017-02-28 | Combi Wear Parts Ab | Tools and tool holders for dredgers |
| NL2009146C2 (en) * | 2012-07-06 | 2014-01-07 | Ihc Holland Ie Bv | Cutter head for removing material from a water bed. |
| CN106120939B (en) * | 2016-08-17 | 2018-04-10 | 中交天航港湾建设工程有限公司 | A kind of dredger strength is broken ground reamer |
| CN107489180A (en) * | 2017-09-27 | 2017-12-19 | 中交上海航道局有限公司 | Cutter suction dredger and for cutter suction dredger can rubble reamer device |
| CN107989627B (en) * | 2017-10-12 | 2019-09-13 | 上海隧道工程有限公司 | Shield cutter |
| CN107989626B (en) * | 2017-10-12 | 2019-01-04 | 上海隧道工程有限公司 | Shield cutter |
| CN111910701A (en) * | 2020-07-22 | 2020-11-10 | 田伟 | River sediment purifying device |
| CN111851622A (en) * | 2020-07-22 | 2020-10-30 | 田伟 | High-efficient river sediment purifier |
| CN112211242B (en) * | 2020-10-19 | 2022-02-22 | 湖州三通水利建设有限公司 | Cutter-suction dredger reamer device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5526593A (en) * | 1994-07-15 | 1996-06-18 | Mobile Pulley & Machine Works, Inc. | Replaceable adapter for excavating cutterhead |
| US5617654A (en) * | 1994-10-28 | 1997-04-08 | Wetta, Ii; William J. | Dredge rotary cutter head |
| CN201704714U (en) * | 2010-03-24 | 2011-01-12 | 中交天航南方交通建设有限公司 | Rock excavating reamer |
| CN202202348U (en) * | 2011-08-08 | 2012-04-25 | 中交天津港航勘察设计研究院有限公司 | Reamer with hydraulic characteristic used for dredger |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62111029A (en) * | 1985-11-07 | 1987-05-22 | M Ii C Eng Service Kk | Pump type dredger |
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2011
- 2011-08-08 CN CN 201110226676 patent/CN102359134B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5526593A (en) * | 1994-07-15 | 1996-06-18 | Mobile Pulley & Machine Works, Inc. | Replaceable adapter for excavating cutterhead |
| US5617654A (en) * | 1994-10-28 | 1997-04-08 | Wetta, Ii; William J. | Dredge rotary cutter head |
| CN201704714U (en) * | 2010-03-24 | 2011-01-12 | 中交天航南方交通建设有限公司 | Rock excavating reamer |
| CN202202348U (en) * | 2011-08-08 | 2012-04-25 | 中交天津港航勘察设计研究院有限公司 | Reamer with hydraulic characteristic used for dredger |
Non-Patent Citations (1)
| Title |
|---|
| JP昭62-111029A 1987.05.22 |
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| CN102359134A (en) | 2012-02-22 |
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Address after: 300456 Tianjin Binhai New Area Tianjin Port Free Trade Zone Yuejin Road shipping service center, building 9, 1205. Patentee after: China Communications (Tianjin) environmental protection design and Research Institute Co., Ltd. Address before: 300461 Tianjin Binhai New Area Tianjin Port Free Trade Zone Yuejin Road shipping service center, building 9, 1205. Patentee before: Tianjin Pore Avigation Survey and Design Research Co., Ltd. of China Communications Construction Co. |