CN210049308U - Deep digging drag head of trailing suction hopper dredger - Google Patents
Deep digging drag head of trailing suction hopper dredger Download PDFInfo
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- CN210049308U CN210049308U CN201920040790.4U CN201920040790U CN210049308U CN 210049308 U CN210049308 U CN 210049308U CN 201920040790 U CN201920040790 U CN 201920040790U CN 210049308 U CN210049308 U CN 210049308U
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- movable cover
- deep
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- 238000007789 sealing Methods 0.000 claims abstract description 39
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 34
- 238000011010 flushing procedure Methods 0.000 claims description 32
- 239000010720 hydraulic oil Substances 0.000 claims description 13
- 230000003014 reinforcing effect Effects 0.000 claims description 9
- 239000000919 ceramic Substances 0.000 claims description 7
- 239000002689 soil Substances 0.000 abstract description 10
- 210000000476 body water Anatomy 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model provides a deep-digging drag head of a drag suction dredger, which comprises a movable cover and drag teeth; the deep-digging drag head of the trailing suction hopper dredger is additionally provided with a movable cover sealing structure on the basis of the drag head of the existing trailing suction hopper dredger, the movable cover sealing structure is arranged on the movable cover and encloses the opening of the cavity structure, and the movable cover sealing structure is used for forming a sealed space together with the movable cover and a dredging working surface so as to enable the drag teeth to be positioned in the sealed space. The deep-digging drag head of the drag suction dredger provided by the utility model has simple structure, can be freely disassembled and is convenient to replace; when the digging depth is larger, the suction performance of the dredge pump and the soil breaking capacity of the drag head can be effectively increased, and the operating efficiency of the trailing suction dredger is ensured.
Description
Technical Field
The utility model relates to a dredging engineering technical field especially relates to a drag suction dredger digger head.
Background
In the dredging industry, a trailing suction hopper dredger is a large self-propelled, cabin-mounted dredger equipped with a drag head excavator and a hydraulic suction device. When the dredger is used for dredging, the rake suction pipe is placed to the water bottom, mud is absorbed from the water bottom through the rake head of the rake suction dredger and the mud suction pipe by utilizing the vacuum action of the mud pump and enters a mud bin of the dredger, and after the mud bin is full, the rake is lifted to sail to a mud throwing area for throwing mud.
The drag head of the drag suction dredger is the foremost equipment of a pipeline for sucking mud or silt by the drag suction dredger, the drag head of the drag suction dredger is connected with a ship body through a drag arm, the drag arm can do up-and-down movement, the rear end of the drag arm is placed into the water to a certain depth, so that the drag head of the drag suction dredger is contacted with a dredging working surface of an underwater soil layer, and therefore, the drag head of the drag suction dredger has direct influence on the dredging performance of the drag suction dredger.
When the rake head of the existing trailing suction hopper dredger digger is deeper, the internal vacuum degree is influenced because the movable cover is not completely deep into the mud surface, so that the suction effect of a dredge pump is poor; meanwhile, the movable cover angle of the drag head of the trailing suction hopper dredger reaches the limit, and the cutting-in angle of the rake teeth is too small to effectively break the soil.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a drag suction dredger digger head to solve among the prior art when digging deeply great the broken soil ability that the mud in-process appears poor and the poor problem of suction effect.
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a deep digging drag head of a drag suction dredger comprises a fixed body, a movable cover and drag teeth; the fixing body is used for fixing the deep digging drag head of the trailing suction hopper dredger on the drag pipe of the trailing suction hopper dredger; the movable cover is rotatably connected with the fixed body and is of a cavity structure with an opening; the rake teeth are arranged at the front end of the movable cover and positioned in the cavity structure of the movable cover, and the rake teeth are used for constructing a dredging working surface; the deep-digging drag head of the trailing suction hopper dredger further comprises a movable cover sealing structure, the movable cover sealing structure is arranged on the movable cover and encloses the opening of the cavity structure, and the movable cover sealing structure is used for forming a sealed space together with the movable cover and the dredging working surface so as to enable the drag teeth to be located in the sealed space.
Preferably, the movable cover sealing structure comprises a plurality of movable cover sealing plates, the plurality of movable cover sealing plates are fixedly arranged around the opening of the movable cover, a closed space is formed by the plurality of movable cover sealing plates, the movable cover and the dredging working surface, and the rake teeth are arranged in the closed space.
Preferably, the movable cover sealing structure comprises three movable cover sealing plates, one of the movable cover sealing plates is arranged at the front end of the movable cover, the other two movable cover sealing plates are arranged at two sides of the movable cover adjacent to the front end of the movable cover, the three movable cover sealing plates, the movable cover and the dredging working surface form a closed space, and the rake teeth are positioned in the closed space.
Preferably, the movable cover comprises a movable cover water tank, the movable cover water tank is arranged at the front end of the movable cover and is located in the cavity structure, the movable cover water tank comprises a reinforcing rib plate, and the reinforcing rib plate is located between the movable cover and a movable cover sealing plate arranged at the front end of the movable cover and is used for reinforcing the movable cover water tank.
Preferably, the movable cover water tank comprises a water tank bottom plate, and an included angle between a plane where the water tank bottom plate is located and a horizontal plane is 45 degrees +/-3 degrees.
Preferably, the deep-digging drag head of the trailing suction hopper dredger further comprises a hydraulic oil cylinder, and the hydraulic oil cylinder is located between the fixed body and the movable cover and used for controlling the ground angle of the movable cover; the included angle between the plane of the water tank bottom plate and the horizontal plane is 42 degrees, the maximum rotation angle of the movable cover can be controlled to be 50 degrees corresponding to the hydraulic oil cylinder, and the rotation angle of the deep-digging drag head of the trailing suction hopper dredger is 3 degrees.
Preferably, the included angle between the plane of the rake tooth cutting face and the horizontal plane is 125 ° ± 3 °.
Preferably, the device further comprises two high-pressure flushing devices which are respectively arranged on the fixed body and the movable cover; each set of high-pressure flushing device comprises a high-pressure nozzle, wherein a wear-resistant block is arranged on the periphery of the high-pressure nozzle and used for protecting the high-pressure nozzle.
Preferably, the high-pressure nozzle is made of wear-resistant materials.
Preferably, the movable cover sealing plate is detachably and fixedly connected with the movable cover.
The utility model has the advantages that: the utility model provides a deep-digging drag head of drag suction dredger simple structure can freely dismantle, and it is convenient to change. On the basis of not influencing the drag head structure of the existing drag suction dredger, the suction performance of the dredge pump and the soil breaking capacity of the drag head can be effectively improved, and the operating efficiency of the drag suction dredger is ensured.
Drawings
Fig. 1 is a schematic structural view of a deep-digging drag head of a trailing suction hopper dredger according to an embodiment of the present invention;
fig. 2 is a schematic top view of a deep-digging drag head of a trailing suction hopper dredger according to an embodiment of the present invention;
fig. 3 is a schematic structural view of a fixing body of a deep-digging drag head of a trailing suction hopper dredger according to an embodiment of the present invention;
fig. 4 is a schematic structural view of a movable cover of a deep-digging drag head of a trailing suction hopper dredger according to an embodiment of the present invention;
fig. 5 is a schematic structural view of a fixed portion of a movable cover sealing plate of a deep-cutting drag head of a trailing suction hopper dredger according to an embodiment of the present invention;
fig. 6 is a schematic diagram of a movable cover enclosing plate structure of a deep-digging drag head of a trailing suction hopper dredger according to an embodiment of the present invention;
fig. 7 is a schematic structural view of a rake tooth seat of a deep-digging rake head of a trailing suction hopper dredger according to an embodiment of the present invention;
fig. 8 is a schematic view of a rake tooth structure of a deep-digging rake head of a trailing suction hopper dredger according to an embodiment of the present invention;
fig. 9 is a schematic structural view of a high-pressure flushing wear-resistant nozzle base of a deep-digging drag head of a trailing suction hopper dredger according to an embodiment of the present invention;
fig. 10 is a schematic structural view of a ceramic core nozzle of a deep-digging drag head of a trailing suction hopper dredger according to an embodiment of the present invention;
wherein the reference numerals of figures 1-10 are as follows:
1-fixed body, 101-fixed body, 102-high pressure flushing pipe, 103-fixed body water tank, 104-fixed body ear plate, 105-rake suction dredger deep-digging drag head collision avoidance device, 2-movable cover, 201-movable cover body, 202-movable cover ear plate, 203-water guide window, 204-movable cover water tank, 3-hydraulic cylinder, 4-high pressure flushing hose, 5-movable cover sealing plate, 501-movable cover sealing plate fixing part, 502-movable cover sealing plate enclosing plate, 6-rake tooth, 601-rake tooth seat, 602-rake tooth body, 7-high pressure flushing wear-resistant nozzle, 701-ceramic core nozzle, 7011-stainless steel structure, 7012-ceramic core, 702-nozzle bolt, 703-high pressure flushing wear-resistant nozzle base.
Detailed Description
The utility model discloses a core thought: on the basis of not influencing the rake head structure of the original trailing suction hopper dredger, the problems of poor suction performance of a dredge pump and poor soil breaking capability of the rake head when the dredging depth is large are effectively solved, and the operating efficiency of the trailing suction hopper dredger is ensured.
In order to realize the idea, the utility model provides a deep-digging drag head of a drag suction dredger, which comprises a fixed body, a movable cover and drag teeth; the fixing body is used for fixing the deep digging drag head of the trailing suction hopper dredger on the drag pipe of the trailing suction hopper dredger; the movable cover is rotatably connected with the fixed body and is of a cavity structure with an opening; the rake teeth are arranged at the front end of the movable cover and positioned in the cavity structure of the movable cover, and the rake teeth are used for constructing a dredging working surface; the deep-digging drag head of the trailing suction hopper dredger further comprises a movable cover sealing structure, the movable cover sealing structure is arranged on the movable cover and encloses the opening of the cavity structure, and the movable cover sealing structure is used for forming a sealed space together with the movable cover and the dredging working surface so as to enable the drag teeth to be located in the sealed space.
To make the objects, advantages and features of the present invention clearer, a deep-digging rake head of a trailing suction hopper dredger according to the present invention will be described in further detail with reference to fig. 1 to 10. It should be noted that the drawings are in simplified form and are not to precise scale, and are provided for convenience and clarity in order to facilitate the description of the embodiments of the present invention.
As shown in attached drawings 1 and 2, the deep-digging drag head of the drag suction dredger comprises a fixed body 1, a movable cover 2, a hydraulic oil cylinder 3 and drag teeth 6.
The fixing body 1 is used for fixing the deep-digging drag head of the trailing suction hopper dredger on the trailing suction hopper dredger; the movable cover 2 is a cavity structure with an opening, and the movable cover 2 is rotationally connected with the fixed body 1; the rake teeth 6 are positioned at the front end of the movable cover 2 and are arranged in the cavity structure of the movable cover 2; the upper end of the movable cover 2 is provided with a hydraulic oil cylinder seat, the hydraulic oil cylinder 3 is positioned on the hydraulic oil cylinder seat, the fixed end of the hydraulic oil cylinder 3 is connected with the fixed body 1, the movable end of the hydraulic oil cylinder 3 is connected with the movable cover 2, and the ground angle of the deep-digging drag head of the trailing suction hopper dredger is controlled through the extension and retraction of the hydraulic oil cylinder 3.
The utility model provides a formula dredge is dug dredge deep-cutting harrow head still includes a movable cover enclosed construction to the harrow, movable cover enclosed construction includes a plurality of movable cover shrouding, a plurality of the fixed the enclosing of movable cover shrouding is established movable cover open-ended periphery, a plurality of the movable cover shrouding the movable cover with the dredging working face forms an airtight space, the rake teeth set up in the airtight space, the movable cover shrouding be used for with formula dredge is dug dredge deep-cutting harrow head and is hugged closely the dredging working face.
As shown in fig. 4, 5 and 6, the movable cover sealing structure of the deep-digging drag head of the trailing suction hopper dredger provided by the embodiment includes three movable cover sealing plates 5, wherein one movable cover sealing plate 5 is installed at the front end of the movable cover 2, the other two movable cover sealing plates are installed at two sides of the front end of the movable cover 2, the three movable cover sealing plates 5, the movable cover 2 and the dredging working surface form a closed space, and the drag tooth 6 is located in the closed space. Wherein, the front end of the movable cover 2 is the opposite side of the movable cover 2 connected with the fixed body 1.
The movable shroud plate 5 provided in this embodiment includes a movable shroud plate fixing portion 501 and a movable shroud plate enclosure plate 502, where the movable shroud plate fixing portion 501 is used to fix the movable shroud plate enclosure plate 502 on the movable shroud 2; according to the construction needs of digging deeply, the bolt can be detached, when the digging depth is large, the sealing plate can be installed to enable the deep digging drag head of the trailing suction hopper dredger to be always attached to the ground, the sealing performance of the movable cover is guaranteed, the vacuum degree of the inner cavity of the movable cover 2 is increased, and the suction efficiency of the dredge pump is guaranteed.
It is obvious that in other embodiments, the movable hood sealing plate 5 and the movable hood 2 can be detachably and fixedly connected by other means than bolting, or fixedly connected, the present invention is not limited thereto, but is within the scope of the present invention.
The utility model provides a formula dredge boat digs drag head deeply still includes high-pressure bath device, high-pressure bath device has two sets, set up respectively in the fixed body with the activity is covered, every set high-pressure bath device all includes high-pressure nozzle, the high-pressure nozzle periphery is provided with wear-resisting piece, wear-resisting piece is used for the protection high-pressure nozzle. In the present embodiment, for convenience of understanding and description, the high-pressure flushing device provided to the fixed body 1 is referred to as a fixed-body high-pressure flushing device, and the high-pressure flushing device provided to the movable hood 2 is referred to as a movable-hood high-pressure flushing device; the high-pressure nozzle is a high-pressure flushing wear-resistant nozzle 7.
As shown in fig. 3, the fixing body 1 of the deep-digging drag head of the trailing suction hopper dredger provided by the embodiment includes a fixing body 101, a fixing body ear plate 104, a deep-digging drag head anti-collision device 105 of the trailing suction hopper dredger, and a fixing body high-pressure flushing device, wherein the fixing body high-pressure flushing device includes a high-pressure flushing pipe 102, a fixing body water tank 103, and a high-pressure flushing wear-resistant nozzle 7.
Wherein, the fixed body 101 is the tubular structure, and in this embodiment, the fixed body 101 passes through the bolt and installs on the trailing arm pipe of trailing suction hopper dredger, and in the mud suction operation in-process, mud passes through the cavity of fixed body 101 and passes through the trailing arm and get into the dredge pump, gets into the mud pipe way behind the dredge pump pressurization.
It should be apparent that, in other embodiments, the fixing body 101 may fix the deep-digging drag head of the trailing suction hopper dredger to the drag arm pipe of the trailing suction hopper dredger by other fixing methods, such as welding, which are not listed here.
In this embodiment, the anti-collision device 105 for the deep-digging drag head of the trailing suction hopper dredger is located on one side, close to the side of the ship board, of the deep-digging drag head of the trailing suction hopper dredger, and is composed of rubber blocks and used for preventing the deep-digging drag head of the trailing suction hopper dredger from impacting the ship board due to wind and wave conditions in the rising and falling process of the deep-digging drag head of the trailing suction hopper dredger.
As shown in the attached drawings 3, 9 and 10, the high-pressure flushing pipe 102 is a high-pressure flushing pipe with one end connected to the rake arm pipe and the other end connected to the fixed body water tank 103, high-pressure flushing water is ejected from a high-pressure flushing pump in the cabin, enters the fixed body water tank 103 through the high-pressure flushing pipe 102, is sprayed out through the high-pressure flushing wear-resistant nozzle 7, and is used for liquefying dredging soil and reducing cutting force of rake teeth, so that the rake teeth are easier to cut soil, and the yield is increased.
The high-pressure flushing wear-resistant nozzle 7 of the fixing body 1 of the embodiment further comprises a high-pressure flushing wear-resistant nozzle base 703 fixed at the lower end of the fixing body water tank 103 through a nozzle bolt 702; the center of the high-pressure flushing wear-resistant nozzle base 703 is provided with a ceramic core nozzle 701, and the nozzle 701 is made of wear-resistant materials. In this embodiment, the nozzle 701 has a stainless steel structure 7011 outside and a ceramic core 7012 inside, i.e., the wear-resistant material in this embodiment is ceramic, which has a very strong wear resistance compared to the conventional polymer core.
As shown in fig. 4, the movable cover 2 of the trailing suction hopper dredger according to the present embodiment includes a movable cover body 201, a movable cover ear plate 202, and a rake tooth 6, where the movable cover body 201 is a cavity structure, and the movable cover ear plate 202 is connected with the fixed body ear plate 104 by a pin.
The movable cover high-pressure flushing device comprises a water diversion window 203, a movable cover water tank 204 and a high-pressure flushing wear-resistant nozzle 7, wherein the structure of the high-pressure flushing wear-resistant nozzle 7 is consistent with that of the fixed body 1.
The movable cover water tank 204 is arranged at the front end of the movable cover 2 and is positioned in the cavity structure, the movable cover water tank 204 comprises reinforcing rib plates, and the reinforcing rib plates are positioned between the movable cover 2 and a movable cover closing plate 5 arranged at the front end of the movable cover and are used for reinforcing the strength of the movable cover water tank 204.
The removable cover water tank 204 includes a tank floor that is at an angle of 45 ° ± 3 ° to the horizontal. When the deep digging drag head of the drag suction dredger reaches the limit digging depth, the angle between the plane of the water tank bottom plate and the horizontal plane is 42 degrees, the included angle between the plane of the cutting surface of the drag tooth 6 and the horizontal plane is 125 degrees +/-3 degrees, and when the angle between the cutting surface of the drag tooth 6 and the horizontal plane is 122 degrees, the cutting effect of the drag tooth 6 is the best.
The included angle between the plane of the water tank bottom plate and the horizontal plane is 42 degrees, the maximum rotation angle of the movable cover 2 can be controlled to be 50 degrees corresponding to the hydraulic oil cylinder 3, and the rotation angle of the deep-digging drag head of the trailing suction hopper dredger is 3 degrees.
The water diversion window 203 is positioned at the front end of the movable cover 2, the opening and closing angle is controlled by the hydraulic oil cylinder 3, and when the rake head of the trailing suction hopper dredger digs a tight rake, the water diversion window 203 can be opened in time to replenish water. The movable hood water tank 204 is located at the front end of the movable hood, is connected to a high-pressure flushing pipe through a high-pressure flushing hose, and has the same function as the fixed body water tank 103.
As shown in fig. 4, 7 and 8, the rake teeth 6 are located at the front end of the movable hood 2, in front of the high pressure flush wear nozzle 7, for cutting the dredged soil.
In this embodiment, the rake teeth 6 include a rake tooth base 601 and a rake tooth body 602, two hooks are provided on the upper portion of the rake tooth body 602, and are fastened on the rake tooth base 601, so as to facilitate replacement, the rake tooth base 601 is fixed on the movable cover 2, and the end portion of the rake tooth body is plow-shaped, so as to increase the soil breaking capability.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In summary, the above embodiments are described in detail for the different configurations of the deep-cutting drag head of the trailing suction hopper dredger, and it is understood that the above description is only for the description of the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention in any way.
Claims (10)
1. A deep digging drag head of a drag suction dredger comprises a fixed body, a movable cover and drag teeth;
the fixing body is used for fixing the deep digging drag head of the trailing suction hopper dredger on the drag pipe of the trailing suction hopper dredger;
the movable cover is rotatably connected with the fixed body and is of a cavity structure with an opening;
the rake teeth are arranged at the front end of the movable cover and positioned in the cavity structure of the movable cover, and the rake teeth are used for constructing a dredging working surface;
the deep-digging drag head of the trailing suction hopper dredger is characterized by further comprising a movable cover sealing structure, the movable cover sealing structure is arranged on the movable cover and surrounds an opening of the cavity structure, and the movable cover sealing structure is used for forming a closed space together with the movable cover and a dredging working surface so as to enable the drag teeth to be located in the closed space.
2. The drag suction dredger deep-cutting drag head as claimed in claim 1, wherein the movable hood enclosing structure comprises a plurality of movable hood sealing plates fixedly arranged around the periphery of the opening of the movable hood, the plurality of movable hood sealing plates, the movable hood and the dredging face forming an enclosed space, and the drag teeth are arranged in the enclosed space.
3. The drag suction dredger deep-cutting drag head as claimed in claim 2, wherein the moveable cover closure structure comprises three moveable cover closure plates, one of which is mounted at the front end of the moveable cover, and two other moveable cover closure plates are mounted on both sides of the moveable cover adjacent to the front end of the moveable cover, the three moveable cover closure plates, the moveable cover and the dredging face forming an enclosed space, and the drag tines being located in the enclosed space.
4. The deep-cutting drag head of the trailing suction hopper dredger according to claim 3, wherein the movable cover comprises a movable cover water tank, the movable cover water tank is disposed at the front end of the movable cover and located in the cavity structure, the movable cover water tank comprises a reinforcing rib plate, and the reinforcing rib plate is located between the movable cover and a movable cover sealing plate mounted at the front end of the movable cover and used for reinforcing the movable cover water tank.
5. The deep-cutting drag head of a trailing suction hopper dredger according to claim 4, wherein the movable hood water tank comprises a water tank bottom plate, and an included angle between a plane in which the water tank bottom plate is located and a horizontal plane is 45 ° ± 3 °.
6. The deep-digging drag head of the trailing suction hopper dredger according to claim 5, wherein the deep-digging drag head of the trailing suction hopper dredger further comprises a hydraulic cylinder, the hydraulic cylinder is located between the fixed body and the movable cover and used for controlling the ground angle of the movable cover;
the included angle between the plane of the water tank bottom plate and the horizontal plane is 42 degrees, the maximum rotation angle of the movable cover can be controlled to be 50 degrees corresponding to the hydraulic oil cylinder, and the rotation angle of the deep-digging drag head of the trailing suction hopper dredger is 3 degrees.
7. The deep-cutting drag head of a trailing suction hopper dredger according to claim 6, wherein the angle between the plane of the rake tooth cutting face and the horizontal plane is 125 ° ± 3 °.
8. The deep-cutting drag head of a trailing suction hopper dredger according to claim 5, further comprising two sets of high-pressure flushing devices, which are respectively disposed on the fixed body and the movable cover;
each set of high-pressure flushing device comprises a high-pressure nozzle, wherein a wear-resistant block is arranged on the periphery of the high-pressure nozzle and used for protecting the high-pressure nozzle.
9. The deep-cutting drag head of a trailing suction hopper dredger according to claim 8, wherein the high-pressure nozzle is made of a wear-resistant ceramic.
10. The deep-cutting drag head of a trailing suction hopper dredger according to any one of claims 2-9, wherein the movable hood sealing plate is detachably and fixedly connected to the movable hood.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920040790.4U CN210049308U (en) | 2019-01-10 | 2019-01-10 | Deep digging drag head of trailing suction hopper dredger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920040790.4U CN210049308U (en) | 2019-01-10 | 2019-01-10 | Deep digging drag head of trailing suction hopper dredger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210049308U true CN210049308U (en) | 2020-02-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920040790.4U Withdrawn - After Issue CN210049308U (en) | 2019-01-10 | 2019-01-10 | Deep digging drag head of trailing suction hopper dredger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210049308U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109629622A (en) * | 2019-01-10 | 2019-04-16 | 中交上海航道局有限公司 | A kind of drag suction dredger drag head |
| CN111395433A (en) * | 2020-04-20 | 2020-07-10 | 中交疏浚技术装备国家工程研究中心有限公司 | Novel high-efficient harrow head of integral type |
-
2019
- 2019-01-10 CN CN201920040790.4U patent/CN210049308U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109629622A (en) * | 2019-01-10 | 2019-04-16 | 中交上海航道局有限公司 | A kind of drag suction dredger drag head |
| CN109629622B (en) * | 2019-01-10 | 2023-12-08 | 中交上海航道局有限公司 | Drag head of drag suction dredger |
| CN111395433A (en) * | 2020-04-20 | 2020-07-10 | 中交疏浚技术装备国家工程研究中心有限公司 | Novel high-efficient harrow head of integral type |
| CN111395433B (en) * | 2020-04-20 | 2022-04-26 | 中交疏浚技术装备国家工程研究中心有限公司 | Novel high-efficient harrow head of integral type |
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