CN202139624U - Clay drag head for drag suction dredger - Google Patents
Clay drag head for drag suction dredger Download PDFInfo
- Publication number
- CN202139624U CN202139624U CN201120245258U CN201120245258U CN202139624U CN 202139624 U CN202139624 U CN 202139624U CN 201120245258 U CN201120245258 U CN 201120245258U CN 201120245258 U CN201120245258 U CN 201120245258U CN 202139624 U CN202139624 U CN 202139624U
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- China
- Prior art keywords
- clay
- drag head
- drag
- movable guard
- hopper dredger
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Abstract
The utility model relates to a clay drag head for a drag suction dredger and belongs to the technical field of dredging engineering. The clay drag head for the drag suction dredger comprises drag teeth, a movable cover, a backup plate and a suction pipe, wherein the movable cover is connected with a driving hydraulic cylinder. The clay drag head for the drag suction dredger is characterized in that flushing nozzles are mounted in the movable cover. The clay drag head for the drag suction dredger has the advantages that the structure is simple, the attaching possibility of clay is reduced, the drag blocking times are reduced, the drag teeth can be detached integrally, the cleaning time after drag blocking is shortened, the dredging efficiency is improved, the dredging engineering cost is lowered.
Description
Technical field
The utility model belongs to the dredging works technical field, particularly relates to a kind of trailing suction hopper dredger and uses the clay drag head.
Background technology
At present, dredge and be meant the means that adopt manual work, waterpower and machinery, and fail the process that other places are gone that moves on to excavations of earthwork under water such as silt soil stones.It is a kind of large-scale dredge boat from boat, stowage formula that is equipped with drag head dredging facility and waterpower mud-sucking device that rake is inhaled ship.Drag head is connected with hull through the rake arm, harrows arm and can do the oscilaltion campaign, and certain depth is under water put in its rear end, and drag head is contacted with the dredging work plane of soil layer under water.
After the clay drag head was transferred to the required degree of depth of dredging, rake teeth contact soil excavated, and dredge pump carries out swabbing action simultaneously, was transported in the drag head excavating the earth that gets up through water.The problem that present traditional drag head runs in constructing to clay: the one, behind the stifled drag head, cleaning drag head time effects efficiency of construction.Drag head excavates in the process of clay, because the adhesive power of clay is very strong, is adsorbed on the drag head easily; Cause drag head to stop up; Can't normal construction, this just needs the clay in the sailor labor cleaning drag head, and the whole piece dredge boat just is in suspended state like this; Cause the boats and ships utilization rate very low, finally cause the folk prescription cost excessive.The 2nd,, when excavating hard paste, load too high causes broken teeth.In excavating the process of hard paste, because there is cohesive strength in clay, the rake teeth very difficulty of breaking ground, so clay increases rapidly the reaction force of rake teeth, causes rake teeth, toothholder fracture.
Summary of the invention
The utility model provides a kind of trailing suction hopper dredger to use the clay drag head for solving the technical problem that exists in the known technology.
The purpose of this invention is to provide a kind of simple in structurely, reduce clay and adhere to chance, less stifled rake number of times shortens the clearance time behind the stifled rake simultaneously, improves dredging efficiency, reduces the trailing suction hopper dredger of characteristics such as dredging works cost and uses the clay drag head.
The technical scheme that the utility model trailing suction hopper dredger uses the clay drag head to take for the technical problem that exists in the solution known technology is:
A kind of trailing suction hopper dredger is used the clay drag head, rake teeth, movable guard is arranged, lean on watchman's wooden clapper, suction pipe, and movable guard is connected with the driving hydraulic cylinder, is characterized in: movable guard is equipped with bath to be chewed.
The utility model trailing suction hopper dredger can also be taked following technical scheme with the clay drag head:
Described trailing suction hopper dredger is used the clay drag head, is characterized in: bath is chewed to double bath and is chewed, and chews towards both sides or central dividing plate near the bath of movable guard both sides side plate and central dividing plate, and middle bath is chewed towards drag head inner.
Described trailing suction hopper dredger is used the clay drag head, is characterized in: activity is covered with grid, and rake teeth is a single row configuration, and during double bath was chewed, back arranged was before rake teeth, and the front row is arranged in movable guard grid rear.
Described trailing suction hopper dredger is used the clay drag head, is characterized in: movable guard inside has increased a circular-arc deflector.
Described trailing suction hopper dredger is used the clay drag head, is characterized in: rake teeth is installed on the tooth bed of whole loading and unloading, and the tooth bed is by being bolted on the movable guard body.
Described trailing suction hopper dredger is used the clay drag head, is characterized in: soft grid is equipped with in movable guard inside.
Described trailing suction hopper dredger is used the clay drag head, is characterized in: soft grid is the grid that anchor chain constitutes.
Advantage and the good effect that the utlity model has are:
Trailing suction hopper dredger with the clay drag head owing to adopted the utility model brand-new technology scheme; Compared with prior art; The utility model characteristics: 1. high-pressure flush descends the surface adhesion force of clay, is not easy to be bonded on the drag head structural body, has also just reduced the chance of stifled rake; High-pressure flush can also be broken up local bulk clay simultaneously, prevents to stop up grid.2. the tooth bed structure can be realized the integral body loading and unloading of toothholder, rake teeth, can in the construction of dredging, carry out the maintenance of tooth bed, less downtime, enhances productivity.3. through increasing the water conservancy diversion arc, improve drag head interior flow field form, reduce local resistance loss, help the suction of mud.4. use soft grid, after drag head is stopped up by clay, can clear up drag head more easily through rocking soft grid.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the front-seat water injection nozzle structural representation of the utility model;
Fig. 3 is a movable guard water injection nozzle arrangement sketch map;
Fig. 4 is a tooth bed structure sketch map;
Fig. 5 is the left TV structure sketch map of Fig. 4;
Fig. 6 is soft cell structure sketch map.
Among the figure: 1, moisturizing door hydraulic cylinder, 2, the moisturizing door, 3, movable guard, 4, the movable guard hydraulic cylinder, 5, lean on watchman's wooden clapper; 6, high-pressure flush flexible pipe, 7, suction pipe, 8, high pressure water pipe, 9, the water conservancy diversion arc; 10, front-seat water injection nozzle, 11, back row's water injection nozzle, 12, the tooth bedstead, 13, seamless steel pipe; 14, toothholder, 15, rake teeth, 16, steel plate, 17, anchor chain.
The specific embodiment
For further understanding technology contents, characteristics and the effect of the utility model, the following examples of giving an example now, and conjunction with figs. specifies as follows:
Consult accompanying drawing 1 to Fig. 6.
Embodiment 1
A kind of trailing suction hopper dredger is used the clay drag head, single rake teeth, movable guard is arranged, lean on watchman's wooden clapper, suction pipe, and movable guard is connected with the driving hydraulic cylinder; Activity is covered with the soft grid that lanyard stopper becomes, and double bath is housed chews, and back arranged is before rake teeth, and the front row is arranged in movable guard grid rear.Chew towards both sides or central dividing plate near the bath of movable guard both sides side plate and central dividing plate, middle bath is chewed towards drag head inner.
Movable guard inside has increased a circular-arc deflector.Rake teeth is installed on the tooth bed of whole loading and unloading, and the tooth bed is by being bolted on the movable guard body.
The concrete structure of present embodiment and the course of work thereof:
1, trailing suction hopper dredger is used the clay drag head, and for adapting to the suction characteristic of clay, it is spacious, suitable sliding that drag head intake structure design gets, in order to the suction of clay.
2, adopt single rake teeth, double high-pressure flush, back arranged is before tooth; The front row is arranged in movable guard grid rear; And the bath direction that is arranged in the movable guard is also different, chews towards both sides near the bath of both sides side plate and central dividing plate, and middle several baths are chewed towards drag head inner.Such flushing structure can reduce clay attached to the chance on the sidewall, can break up clay in the part simultaneously, reduces the viscosity of clay, finally reaches the purpose that reduces stifled rake number of times.
3, through analyzing the drag head interior flow field; Find that there is large-area whirlpool district in traditional drag head interior flow field, the present invention has reduced above-mentioned whirlpool district through at the inner deflector that increases a circular arc of movable guard; Thereby make the drag head interior flow field smooth more, reduce local resistance loss.
4, this drag head has increased removable tooth bed structure; By four thickness tooth bedstead that is 50mm; Bolt and movable guard through 10 30mm are fixed, and in 146 * 30 seamless steel pipe and tooth bedstead and the toothholder welding, on toothholder, load onto corresponding rake teeth at last.Logical such structure makes that changing rake teeth can carry out with construction with the work of changing toothholder simultaneously, improves the efficient of changing tooth, changing toothholder.
5, take the form of soft grid, be connected into soft grid with the steel bar of M1-L 10 GB/T549-1996 anchor chains and thickness 16mm, width 60mm, this grid is fixed by welding in the inside of movable guard, and heavy line is represented the position of grid.Even drag head is blocked by clay like this, also can come to clear up easily clay through rocking anchor chain attached on the drag head, shorten clearance time, enhance productivity.
Claims (7)
1. a trailing suction hopper dredger is used the clay drag head, rake teeth, movable guard is arranged, lean on watchman's wooden clapper, suction pipe, and movable guard is connected with the driving hydraulic cylinder, it is characterized in that: movable guard is equipped with bath to be chewed.
2. use the clay drag head according to the described trailing suction hopper dredger of claim 1, it is characterized in that: bath is chewed to double bath and is chewed, and chews towards both sides or central dividing plate near the bath of movable guard both sides side plate and central dividing plate, and middle bath is chewed towards drag head inner.
3. use the clay drag head according to the described trailing suction hopper dredger of claim 2, it is characterized in that: activity is covered with grid, and rake teeth is a single row configuration, and during double bath was chewed, back arranged was before rake teeth, and the front row is arranged in movable guard grid rear.
4. use the clay drag head according to the described trailing suction hopper dredger of claim 1, it is characterized in that: movable guard inside has increased a circular-arc deflector.
5. use the clay drag head according to the described trailing suction hopper dredger of claim 1, it is characterized in that: rake teeth is installed on the tooth bed of whole loading and unloading, and the tooth bed is by being bolted on the movable guard body.
6. use the clay drag head according to the described trailing suction hopper dredger of the arbitrary claim of claim 1-5, it is characterized in that: soft grid is equipped with in movable guard inside.
7. use the clay drag head according to the described trailing suction hopper dredger of claim 6, it is characterized in that: soft grid is the grid that anchor chain constitutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120245258U CN202139624U (en) | 2011-07-14 | 2011-07-14 | Clay drag head for drag suction dredger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120245258U CN202139624U (en) | 2011-07-14 | 2011-07-14 | Clay drag head for drag suction dredger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202139624U true CN202139624U (en) | 2012-02-08 |
Family
ID=45550687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120245258U Expired - Lifetime CN202139624U (en) | 2011-07-14 | 2011-07-14 | Clay drag head for drag suction dredger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202139624U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102330443A (en) * | 2011-07-14 | 2012-01-25 | 中交天津港航勘察设计研究院有限公司 | Clay drag head for drag suction dredger |
| CN103572796A (en) * | 2012-08-01 | 2014-02-12 | 中交上海航道勘察设计研究院有限公司 | Ridged double-curved-surface rake tooth |
-
2011
- 2011-07-14 CN CN201120245258U patent/CN202139624U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102330443A (en) * | 2011-07-14 | 2012-01-25 | 中交天津港航勘察设计研究院有限公司 | Clay drag head for drag suction dredger |
| CN103572796A (en) * | 2012-08-01 | 2014-02-12 | 中交上海航道勘察设计研究院有限公司 | Ridged double-curved-surface rake tooth |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CCCC TIANJIN DREDGING CO., LTD. CCCC TDC ENVIRONME Effective date: 20150429 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150429 Address after: Tianjin Binhai New Area, Tianjin Port Free Trade Zone, Yuejin Road, shipping service center, building 9 Patentee after: Tianjin Pore Avigation Survey and Design Research Co., Ltd. of China Communications Construction Co. Patentee after: CCCC Tianjin Dredging Co., Ltd. Patentee after: CCCC-TDC ENVIRONMENTAL ENGINEERING CO., LTD. Patentee after: CCCC-TDC Binhai Environmental Channel Dredging Co., Ltd. Patentee after: China Traffic Tianjin Dredging Harbour Construction Engineering Co., Ltd. Patentee after: Cccc-TDC Yantai Environmental Protection Dredging Co., Ltd. Address before: 300461 Tianjin Yuejin Binhai New Area of Tianjin Port Free Trade Zone Road Shipping Service Center Building No. 9 Patentee before: Tianjin Pore Avigation Survey and Design Research Co., Ltd. of China Communications Construction Co. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20120208 |
|
| CX01 | Expiry of patent term |