CN217734156U - Drag head structure and dredger - Google Patents
Drag head structure and dredger Download PDFInfo
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- CN217734156U CN217734156U CN202221640166.6U CN202221640166U CN217734156U CN 217734156 U CN217734156 U CN 217734156U CN 202221640166 U CN202221640166 U CN 202221640166U CN 217734156 U CN217734156 U CN 217734156U
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- drag head
- guide plate
- head body
- drag
- head structure
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Abstract
The utility model provides a drag head structure and dredge, wherein the drag head structure includes the drag head body, still includes guide plate and telescoping device, the one end of guide plate is rotated and is set up on the drag head body, telescoping device's one end is rotated and is set up on the drag head body, and its other end rotates and sets up on the guide plate. The utility model discloses can realize the effective counter weight to the drag head structure under the condition that does not great increase drag head structure quality.
Description
Technical Field
The utility model belongs to the technical field of the dredging engineering, especially, relate to a drag head structure and dredge.
Background
The drag suction dredger is a large dredging engineering ship, and is a main construction device for large coastal port construction, sea reclamation, sea channel excavation and maintenance and other projects due to the characteristics of self-navigation capability, large dredging depth, strong wind and wave resistance, self-contained mud tanks and the like. A large self-propelled, stowable dredger is equipped with a drag head dredger and a hydraulic dredging device.
As shown in fig. 4, during dredging construction, the rake head structure presses the rake teeth into the sand bed by self-weight, the drag head structure is pulled by using the propulsive force of the dredger, so that the sand bed is dredged by the rake teeth, high-concentration slurry is formed in the inner cavity of the rake head structure, and a large-sized dredge pump installed in a cabin sucks the slurry through a rake pipe and conveys the slurry to a sludge storage system. Because a great deal of factors such as sand bed, rivers and mud influence the resistance of drag head structure dredging, it is more single to reply changeable environment through the dead weight of drag head structure self to in whole excavation process, if drag head weight is overweight, can cause drag head winch load to increase, structural strength demand increase, lead to the operational difficulty, if drag head weight is too light, then can not reach into the mud degree of depth, lead to grabbing the land volume not enough, dig inefficiency.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a drag head structure and dredge can realize the effective counter weight to the drag head structure under the condition of great increase drag head structure quality not.
The utility model discloses a realize through following technical scheme:
the utility model provides a drag head structure, includes the drag head body, still includes guide plate and telescoping device, the one end of guide plate is rotated and is set up on the drag head body, the one end of telescoping device is rotated and is set up on the drag head body, and its other end rotates and sets up on the guide plate.
Furthermore, the guide plate comprises a first end and a second end which are arranged oppositely, and a third end and a fourth end which are arranged oppositely, the first end is rotatably arranged on the drag head body, the number of the telescopic devices is two, and the two telescopic devices are respectively rotatably arranged on the third end and the fourth end.
Furthermore, a first connecting hinge piece and a second connecting hinge piece are respectively arranged at two ends of the telescopic device, the first connecting hinge piece is connected with the rake head body, and the second connecting hinge piece is connected with the guide plate.
Furthermore, the first connecting hinge comprises a first connecting block, a rotating shaft and a second connecting block, the first connecting block and the second connecting block are connected through the rotating shaft, and the structure of the second connecting hinge is the same as that of the first connecting hinge.
Furthermore, one end of the telescopic device is rotatably arranged in the middle of the guide plate.
Further, the telescopic device is a hydraulic cylinder.
The utility model also provides a dredge, including hull and foretell harrow head structure, the harrow head structure sets up on the hull.
Compared with the prior art, the beneficial effects of the utility model are that: the guide plate and the telescopic device are arranged on the drag head body, the guide plate is pushed by the telescopic device to form an angle between the guide plate and the drag head body in the dredging operation, the downward pressure on the guide plate caused by water flow resistance is utilized, so that the increase of the ground pressure of the drag head body is realized by the guide plate, the self weight of the drag head body is further increased, the load of the drag head winch is basically unchanged, the structural strength of a corresponding ship body does not need to be additionally changed, and the target mud quality range of the drag suction operation is greatly widened; the angle formed between the guide plate and the drag head body and the navigation speed of the dredger can be adjusted through the telescopic device, so that the pressure of the drag head body on the ground and the self weight of the drag head body can be controlled; adopt the utility model discloses the lightweight of dredge can be realized to the drag head structure, lets the dredge more have the nature controlled to the cost is practiced thrift in the reduction of dredge weight ability fuel reduction.
Drawings
Fig. 1 is a schematic structural view of the drag head structure of the present invention;
fig. 2 is a schematic view of the drag head structure of the present invention;
FIG. 3 is an enlarged view of portion A of FIG. 1;
fig. 4 is a schematic structural view of a drag head structure of a conventional dredger.
In the figure, 1-drag head body, 2-guide plate, 3-telescoping device, 4-first connecting hinge, 41-first connecting block, 42-rotating shaft, 43-second connecting block, and 5-second connecting hinge.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined or explained in subsequent figures. Meanwhile, in the description of the present invention, the terms "first", "second", and the like are used only for distinguishing the description, and are not construed as indicating or implying relative importance.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising one of 8230; \8230;" 8230; "does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the utility model is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element to be referred must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a drag head structure of the present invention. The utility model provides a drag head structure, includes drag head body 1, and the drag head structure still includes guide plate 2 and telescoping device 3, and the one end of guide plate 2 is rotated and is set up on drag head body 1, and the one end of telescoping device 3 is rotated and is set up on drag head body 1, and its other end rotates and sets up on guide plate 2.
Specifically, drag head body 1 is current structure, and it includes the drag head fixed body, rotates the movable cover that sets up in drag head fixed body one end and is used for driving movable cover pivoted pneumatic cylinder with drag head fixed body and movable cover connection respectively, and the one end that the drag head fixed body was kept away from to the movable cover is equipped with the rake teeth, through the flexible of pneumatic cylinder, controls the angle of movable cover to ground. Guide plate 2 rotates to be set up on the drag head fixed body, and the one end of telescoping device 3 rotates to be set up on the drag head fixed body, and its other end rotates to be set up on guide plate 2 to drive guide plate 2 and rotate on the drag head fixed body.
Referring to fig. 3, fig. 3 is an enlarged view of a portion a of fig. 1. In one embodiment, the guide plate 2 includes a first end and a second end which are oppositely arranged, and a third end and a fourth end which are oppositely arranged, the first end is rotatably arranged on the drag head body 1, the number of the telescopic devices 3 is two, and two telescopic devices 3 are rotatably arranged on the third end and the fourth end respectively. Drive guide plate 2 through two telescoping device 3 and rotate on drag head body 1, can increase guide plate 2 stability, reduce mechanical structure's load. Furthermore, the telescopic device 3 can be added as appropriate according to actual conditions. In one embodiment, both ends of the first end are connected with the drag head body 1 through hinges respectively.
In an embodiment, a first connecting hinge 4 and a second connecting hinge 5 are respectively disposed at two ends of the telescopic device 3, the first connecting hinge 4 is connected with the drag head body 1, and the second connecting hinge 5 is connected with the guide plate 2. This setting is convenient for install telescoping device 3, and telescoping device 3 rotates through first connecting hinge 4 and drag head body 1 to be connected, and telescoping device 3 rotates through second connecting hinge 5 and is connected with guide plate 2. In one embodiment, the first connection hinge 4 includes a first connection block 41, a rotation shaft 42, and a second connection block 43, the first connection block 41 and the second connection block 43 are connected by the rotation shaft 42, and the second connection hinge 5 has the same structure as the first connection hinge 4.
In one embodiment, one end of the telescopic device 3 is rotatably arranged in the middle of the guide plate 2. This setting can reduce the flexible stroke of telescoping device 3 when adjusting the angle that forms between guide plate 2 and drag head body 1 to adjust the angle that forms between guide plate 2 and the drag head body 1 more fast.
In one embodiment, the telescopic device 3 is a hydraulic cylinder. The hydraulic cylinder has simple structure and reliable work, has no transmission clearance, moves stably and can keep stability in deep sea environment.
Referring to fig. 2, fig. 2 is a schematic view of the drag head structure according to the present invention. The following simple description of the utility model discloses the working process of harrow head structure:
before or after the trailing suction construction is finished, the guide plate 2 is driven to rotate by the hydraulic cylinder, so that the angle between the guide plate 2 and the drag head fixing body is 90 degrees, the pressure of water on the guide plate 2 is reduced, and the load of the drag head winch can be reduced when the drag head body 1 is lowered to the water bottom by the drag head winch or the drag head winch lifts the drag head body 1 to a dredger;
after the drag head body 1 is lowered to the water bottom by the drag head winch, when drag suction construction is started, because the water bottom condition is usually complex, such as factors of muddy quality, navigation speed, drag head body 1 ground angle alpha and the like, the self weight of the drag head body 1 is not enough, effective soil breaking cannot be realized, the angle formed between the guide plate 2 and the drag head fixing body is adjusted by the hydraulic cylinder, partial downward acting force F is decomposed by the resistance of water to the guide plate 2, as shown in figure 2, the ground pressure of the drag head body 1 is increased, the self weight of the drag head body 1 can be increased by about 0.5 ton to 1 ton, the ground pressure can be changed by adjusting the angle according to the actual muddy quality, and the working efficiency of the dredge boat is improved;
specifically, when sediment with high hardness, such as high-hardened iron plate sand, is dredged, the guide plate 2 is driven to rotate through the hydraulic cylinder, and the guide plate 2 is adjusted to a proper angle, so that the ground pressure of the drag head body 1 is increased; when the navigation speed of the dredger is high, the guide plate 2 can be driven to rotate by the hydraulic cylinder according to the requirements of mud quality and speed, and the guide plate 2 is adjusted to a proper angle, so that the influence of the guide plate 2 on the navigation speed is reduced to the minimum and the operation efficiency is improved; in the dredging work, the change of the drag head body 1 to the earth angle alpha leads to the change of the mud entering depth of the drag head body 1, the guide plate 2 is driven to rotate through the hydraulic cylinder, the guide plate 2 is adjusted to a proper angle, the weight of the drag head body 1 is changed, and the operation efficiency is improved.
The utility model also provides a dredge, including hull and foretell harrow head structure, the harrow head structure sets up on the hull. The dredger comprises the drag head structure, has all effects of the drag head structure, and is not described in detail herein.
Compared with the prior art, the beneficial effects of the utility model are that: the guide plate 2 and the expansion device 3 are arranged on the drag head body 1, in the dredging operation, the expansion device 3 pushes the guide plate 2 to form an angle between the guide plate 2 and the drag head body 1, the downward pressure of the guide plate 2 caused by water flow resistance is utilized, so that the increase of the pressure of the drag head body 1 on the ground is realized through the guide plate 2, the self weight of the drag head body 1 is further increased, the load of a drag head winch is basically unchanged, the structural strength of a corresponding ship body does not need to be additionally changed, and the target mud quality range of the trailing suction operation is greatly widened; the angle formed between the guide plate 2 and the drag head body 1 and the navigation speed of the dredger can be adjusted through the telescopic device 3, so that the pressure of the drag head body 1 to the ground and the dead weight of the drag head body 1 can be controlled; adopt the utility model discloses the lightweight of dredge can be realized to the drag head structure, lets the dredge more have the nature controlled to the cost is practiced thrift in the reduction of dredge weight ability fuel reduction.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any form, so that any simple modification, equivalent change and modification made by the technical entity of the present invention to the above embodiments without departing from the technical solution of the present invention all fall within the scope of the technical solution of the present invention.
Claims (7)
1. The utility model provides a drag head structure, includes the drag head body, its characterized in that still includes guide plate and telescoping device, the one end of guide plate is rotated and is set up on the drag head body, telescoping device's one end is rotated and is set up on the drag head body, and its other end rotates and sets up on the guide plate.
2. Drag head construction according to claim 1, characterized in that the deflector comprises a first and a second end arranged opposite each other and a third and a fourth end arranged opposite each other, the first end being rotatably arranged in the drag head body, the number of telescopic means being two, two of the telescopic means being rotatably arranged in the third and fourth end, respectively.
3. Drag head construction according to claim 1, characterized in that the telescoping device is provided with a first and a second connection hinge at both ends, respectively, the first connection hinge being connected with the drag head body and the second connection hinge being connected with the deflector.
4. Drag head construction according to claim 3, characterised in that the first connection hinge comprises a first connection block, a rotation shaft and a second connection block, which are connected by means of the rotation shaft, the second connection hinge being of the same construction as the first connection hinge.
5. Drag head construction according to claim 1, characterised in that one end of the telescopic device is rotatably arranged in the middle of the deflector.
6. Drag head structure according to claim 1, characterized in that the telescopic means are hydraulic cylinders.
7. A dredger comprising a hull and a drag head structure according to any one of claims 1-6, the drag head structure being arranged on the hull.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221640166.6U CN217734156U (en) | 2022-06-28 | 2022-06-28 | Drag head structure and dredger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221640166.6U CN217734156U (en) | 2022-06-28 | 2022-06-28 | Drag head structure and dredger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217734156U true CN217734156U (en) | 2022-11-04 |
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ID=83845284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221640166.6U Active CN217734156U (en) | 2022-06-28 | 2022-06-28 | Drag head structure and dredger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217734156U (en) |
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2022
- 2022-06-28 CN CN202221640166.6U patent/CN217734156U/en active Active
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