CN205999958U - Trailing suction hopper dredger drag head - Google Patents
Trailing suction hopper dredger drag head Download PDFInfo
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- CN205999958U CN205999958U CN201621023643.9U CN201621023643U CN205999958U CN 205999958 U CN205999958 U CN 205999958U CN 201621023643 U CN201621023643 U CN 201621023643U CN 205999958 U CN205999958 U CN 205999958U
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- drag head
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Abstract
This utility model trailing suction hopper dredger drag head is related to a kind of dredging work equipment.Its purpose is to provide and a kind of can strengthen the ability of breaking ground, improve the trailing suction hopper dredger drag head of the yield dredging closely knit fine sand.This utility model trailing suction hopper dredger drag head includes main drag head, main drag head is rotatably supported in rake arms, it is provided with hydraulic cylinder between rake arms and main drag head, it is fixed with rake arms into water manifold, the water inlet entering water manifold connects high-pressure flush pipeline, the outlet entering water manifold connects delivery hose, delivery hose includes front water hose and rear water hose, front water hose is connected with the leading water chamber being arranged on main drag head, leading water chamber is connected with water inlet pipe, water inlet pipe lower end is connected with horizontal aqueduct and longitudinal aqueduct, laterally aqueduct and longitudinal aqueduct communicate, and it is staggered on the downside of main drag head, laterally it is connected with front-seat high-pressure nozzle on aqueduct, longitudinal high-pressure shower nozzle is respectively connected with longitudinal aqueduct, rake teeth group is also equipped with main drag head.
Description
Technical field
This utility model is related to a kind of dredging work equipment, more particularly to a kind of drag head for trailing suction hopper dredger.
Background technology
The working method of trailing suction hopper dredger is to navigate by water while dredging at present, respectively installs a drag head in the both sides of ship.
During dredger navigation, drive drag head to move forward, soil is excavated under water by drag head, then by the suction of dredge pump, along mud
Pipe sucks spoil hopper mud, resails and carry out throwing mud to mud dumping area domain after cabin is full.The drag head of wherein existing dredger, such as schemes
Shown in 9 and Figure 10, it is typically provided two row's rake teeths (i.e. front-seat rake teeth and heel row rake teeth) and two row's high-pressure nozzles (i.e. front-seat high pressure spray
Head and heel row high-pressure nozzle), during work, High-Pressure Water projects from shower nozzle, hardened sand is rushed broken loose, then cutting by rake teeth
Cut, punching interaction makes silt particle easily suspend, be easy to suck mud pipe, improve dredging efficiency.But it is due to when dredging, a certain
The soil at place respectively can only be washed away once by front and rear row high-pressure flush, breaks ground indifferent, is especially excavating closely knit thin sandy soil
When it is impossible to effectively be crushed to soil, dredging efficiency reduce.
Utility model content
The technical problems to be solved in the utility model is to provide one kind can strengthen the ability of breaking ground, improve and dredge closely knit fine sand
Yield trailing suction hopper dredger drag head.
This utility model trailing suction hopper dredger drag head, including main drag head, main drag head is rotatably supported in rake arms, described rake arms
It is provided with hydraulic cylinder and main drag head between, rake arms is fixed with into water manifold, the water inlet entering water manifold connects high pressure water pipe
Line, each outlet entering water manifold connects delivery hose respectively, and delivery hose includes front water hose and rear water hose, front gives
Water tube hose is connected with the leading water chamber being arranged on main drag head, and leading water chamber is connected with several water inlet pipes, under water inlet pipe
End extend on the downside of main drag head, and water inlet pipe lower end is connected with horizontal aqueduct and longitudinal aqueduct, and horizontal aqueduct draws with longitudinally
Water pipe communicates, and is staggered on the downside of main drag head, and horizontal aqueduct is connected with multiple front rows high-pressure nozzle, longitudinal aqueduct
On be respectively connected with multiple longitudinal high-pressure shower nozzles, rear water hose by rear diversion cavity to heel row high-pressure nozzle supply water, main drag head
On be also equipped with rake teeth group, rake teeth group includes multiple rake teeths.
This utility model trailing suction hopper dredger drag head, the rake teeth in wherein said rake teeth group, front-seat high-pressure nozzle, heel row are high
Pressure shower nozzle and the equal forward downward of longitudinal high-pressure shower nozzle tilt, and identical with the angle of horizontal direction.
This utility model trailing suction hopper dredger drag head, wherein said angle is 30 °～60 °.
This utility model trailing suction hopper dredger drag head, wherein said rake arms rear portion is provided with rotating shaft, and rotating shaft is used for supporting master
Drag head, rake arms rear portion is provided with the protective cover matching with main drag head external surface shape, and the agent structure of rake arms is by multi-sheets
It is welded, rake arms is internally provided with hollow cavity, hollow cavity is externally connected to dredge pump in rake arms, rake arms is near main drag head one
Side offers row's mud-suction hole, and mud-suction hole is connected with the hollow cavity in rake arms, and the front end of rake arms is machined with connecting hole, connects
Hole is used for connecting the pipeline transporting soil.
This utility model trailing suction hopper dredger drag head, wherein said rake arms top is provided with support base, enters water manifold and fixes
On support base, support base is further fixed on front hydraulic cylinder fixed seat, front hydraulic cylinder fixed seat is rotated with hydraulic cylinder and is connected, hydraulic pressure
Cylinder front end is rotated with hydraulic cylinders bearing and is connected, and hydraulic cylinders bearing is fixed in rear hydraulic cylinder fixed seat, rear hydraulic cylinder fixed seat peace
It is contained on main drag head.
This utility model trailing suction hopper dredger drag head, wherein said rake teeth group includes multiple shape identical rake teeths, often
Individual rake teeth is integrally wedge shaped, and including head, transition part and root, wherein head includes main work surface and the pair work that angle is obtuse angle
Make face, main work surface is located inside rake teeth, is connected with the inwall of transition part, the inwall of transition part is the cambered surface of outside lateral bend,
The outer wall auxiliary connection work surface of transition part, the outer wall of transition part is divided into two sections, be wherein directly connected to subtask face for tiltedly putting down
Face, is the arc-plane of inside lateral bend above tapered plane, and the root of rake teeth is machined with mounting groove.
This utility model trailing suction hopper dredger drag head, wherein said rake teeth group includes front-seat rake teeth and heel row rake teeth, front-seat
Rake teeth and heel row rake teeth are located at middle part and rear portion on the downside of main drag head respectively.
This utility model trailing suction hopper dredger drag head difference from prior art is this utility model trailing suction hopper dredger
Improved on the basis of existing drag head with drag head, change traditional drag head two row's shower nozzles only arranged side by side in front and back and sprayed water
Situation, increased intensity and the area of water spray.This utility model is drawn some in the leading water chamber being connected to High-Pressure Water
Root water inlet pipe, water inlet pipe extend on the downside of main drag head and connects horizontal aqueduct and longitudinal aqueduct, horizontal aqueduct and longitudinal direction
Aqueduct connects front-seat high-pressure nozzle and longitudinal high-pressure shower nozzle respectively, and transverse and longitudinal shower nozzle is arranged in a crossed manner, increases covering of spraying water with high pressure
Area and impact ground intensity, also improve cutting depth and the width of rake teeth.This utility model trailing suction hopper dredger is harrowed
Head operationally can fully break ground, and so that soil is mixed with water and siphoned away by dredging tube, be more conducive to dredge the surface of closely knit fine sand, effectively carry
High yield, manufactures easy to use, easy popularization simultaneously.
Below in conjunction with the accompanying drawings trailing suction hopper dredger drag head of the present utility model is described further.
Brief description
Fig. 1 is the front view of this utility model trailing suction hopper dredger drag head；
Fig. 2 is the top view of this utility model trailing suction hopper dredger drag head；
Fig. 3 is the upward view of this utility model trailing suction hopper dredger drag head；
Fig. 4 is the axonometric chart of this utility model trailing suction hopper dredger drag head；
Fig. 5 is the axonometric chart at rake teeth upper right visual angle in this utility model trailing suction hopper dredger drag head；
Fig. 6 is the axonometric chart at rake teeth lower-left visual angle in this utility model trailing suction hopper dredger drag head；
Fig. 7 is the axonometric chart at drag head lower-left visual angle in this utility model trailing suction hopper dredger drag head；
Fig. 8 is the axonometric chart at drag head upper right visual angle in this utility model trailing suction hopper dredger drag head；
Fig. 9 is the front view of drag head in prior art；
Figure 10 is the working state schematic representation of drag head in prior art.
Specific embodiment
As shown in Fig. 1-Fig. 4 and Fig. 7, Fig. 8, this utility model trailing suction hopper dredger drag head includes main drag head 1, main drag head 1
It is rotatably supported in the rotating shaft 42 at rake arms 18 rear portion, rake arms 18 rear portion is provided with match with main drag head 1 external surface shape anti-
Guard shield 43, protective cover 43 plays the effect protecting main drag head 1, prevents main drag head 1 from having impurity to enter to become owner of in rotation process simultaneously
Inside drag head 1 and rake arms 18.The agent structure of rake arms 18 is welded by multi-sheets, and processing is simple and has higher
Intensity.Rake arms 18 is internally provided with hollow cavity 46, and hollow cavity 46 is externally connected to dredge pump in rake arms 18, for extracting mud
Slurry.Rake arms 18 offers row's mud-suction hole 41 near main drag head 1 side, and mud-suction hole 41 is connected with the hollow cavity 46 in rake arms 18
Logical.The front end of rake arms 18 is machined with connecting hole 45, and connecting hole 45 is used for connecting the pipeline transporting soil.It is provided with above rake arms 18
Support base 17, support base 17 is fixed with front hydraulic cylinder fixed seat 15 and enters water manifold 14.
As depicted in figs. 1 and 2, the water inlet entering water manifold 14 connects high-pressure flush pipeline 16, in high-pressure flush pipeline 16
Full of water under high pressure, each outlet entering water manifold 14 connects each delivery hose respectively it is ensured that water under high pressure is evenly distributed to each water outlet
In flexible pipe.Hydraulic cylinder 13 is rotatablely equipped with front hydraulic cylinder fixed seat 15, hydraulic cylinder 13 front end is rotated with hydraulic cylinders bearing and is connected,
Hydraulic cylinders bearing is fixed in rear hydraulic cylinder fixed seat 10, and rear hydraulic cylinder fixed seat 10 is arranged on main drag head 1.Front hydraulic cylinder is solid
Reservation 15 and rear hydraulic cylinder fixed seat 10 can be in order to the dismounting of hydraulic cylinder 13 and replacings.When hydraulic cylinder 13 stretches, front hydraulic pressure
Cylinder fixed seat 15 maintains static, and rear hydraulic cylinder fixed seat 10 drives main drag head 1 to rotate, based on drag head 1 provide power.
As shown in Figure 3 and Figure 4, delivery hose includes front water hose 12 and rear water hose 11, wherein rear water hose
11 are connected with the rear diversion cavity 7 being arranged on main drag head 1, and rear diversion cavity 7 is connected with multiple heel row high-pressure nozzles 6, heel row
High-pressure nozzle 6 along main drag head 1 length direction linear array main drag head 1 downside rear portion；Front water hose 12 is connected with peace
It is contained in the leading water chamber 8 on main drag head 1, leading water chamber 8 is connected with two water inlet pipes 21, water inlet pipe 21 lower end extend into master
On the downside of drag head 1, water inlet pipe 21 lower end is connected with a horizontal aqueduct 19 and three longitudinal aqueducts 20, horizontal aqueduct 19 He
Longitudinal aqueduct 20 communicates, and is staggered on the downside of main drag head 1.Multiple front rows high-pressure nozzle is laterally connected with aqueduct 19
4, longitudinal aqueduct 20 is respectively connected with multiple longitudinal high-pressure shower nozzles 2.Due to the restriction of locus, indulge for two positioned at both sides
7 longitudinal high-pressure shower nozzles 2 are respectively connected with aqueduct 20, and are located at and are connected with 8 longitudinal directions on longitudinal aqueduct 20 of centre
High-pressure nozzle 2.Heel row high-pressure nozzle 6, front-seat high-pressure nozzle 4 are identical with the angle that longitudinal high-pressure shower nozzle 2 forward downward tilts, with
Horizontal direction angle is 30 °～60 °.
As shown in figures 3 to 6, main drag head 1 is also equipped with rake teeth group, the global shape of each rake teeth is wedge shaped, including head
Portion, transition part and root, wherein head include main work surface 32 and subtask face 31, main work surface 32 and the pair that angle is obtuse angle
Work surface 31 is used for cutting soil.Main work surface 32 is located inside rake teeth, is connected with the inwall of transition part 33.The inwall of transition part 33 is
The outwards cambered surface of lateral bend, globoidal structure can increase excavating depth in order to rake teeth, can store more inside rake teeth simultaneously
Soil, prevents soil from excessively hindering follow-up work.The outer wall auxiliary connection work surface 31 of transition part 33, the outer wall of transition part 33 is divided into
Two sections, be wherein directly connected to subtask face for tapered plane 36, tapered plane 36 can be in order to the quick discharge of soil, tapered plane
It is the arc-plane 35 of inside lateral bend above in the of 36, be easy to process and install.The root 34 of rake teeth is machined with mounting groove, for harrowing
Tooth and the connection of main drag head 1.Rake teeth group includes front-seat rake teeth 3 and heel row rake teeth 5, and front-seat rake teeth 3 and heel row rake teeth 5 are located at respectively
The middle part of main drag head 1 downside and rear portion, front-seat rake teeth 3 is identical with each shower nozzle with the angle of inclination of heel row rake teeth 5.
The operation principle of this utility model trailing suction hopper dredger drag head：High-Pressure Water enters water inlet discrimination by high-pressure flush pipeline
Pipe 14, current are by entering after water manifold 14 is divided equally to enter front water hose 12 and rear water hose 11, water hose 12 before entrance
High-Pressure Water continues to flow into leading water chamber 8, flows to the horizontal aqueduct 19 of main drag head 1 downside by water inlet pipe 21 and longitudinally draws
In water pipe 20, spray eventually through front-seat high-pressure nozzle 4 and longitudinal high-pressure shower nozzle 2；And enter after water hose 11 water under high pressure
Directly sprayed by heel row high-pressure nozzle 6 after diversion cavity 7 after stream entrance.The High-Pressure Water that each high-pressure nozzle sprays is used for brokenly
Soil, reduces rake teeth cutting force, makes rake teeth be more easy to cut soil, improves the density dredged during closely knit fine sand, increases yield.In High-Pressure Water
Main drag head 1 beginning action after injection, rake arms 18 remains stationary as, and main drag head 1 is rotated, and drives the rake teeth group on main drag head 1
Carry out mud diging working, hydraulic cylinder 13 provides power to front two rows rake teeth.
Embodiment described above is only preferred implementation of the present utility model to be described, not to this practicality
New scope is defined, and on the premise of without departing from this utility model design spirit, those of ordinary skill in the art are to this
Various modifications and improvement that the technical scheme of utility model is made, all should fall into the protection of this utility model claims determination
In the range of.
Claims (7)
1. a kind of trailing suction hopper dredger drag head, including main drag head, main drag head be rotatably supported in rake arms it is characterised in that：Described
It is provided with hydraulic cylinder between rake arms and main drag head, rake arms is fixed with into water manifold, the water inlet entering water manifold connects high pressure punching
Water pipeline, each outlet entering water manifold connects delivery hose respectively, and delivery hose includes front water hose and rear water hose,
Front water hose is connected with the leading water chamber being arranged on main drag head, and leading water chamber is connected with several water inlet pipes, water inlet
Pipe lower end extend on the downside of main drag head, and water inlet pipe lower end is connected with horizontal aqueduct and longitudinal aqueduct, horizontal aqueduct and vertical
Communicate to aqueduct, and be staggered on the downside of main drag head, horizontal aqueduct is connected with multiple front rows high-pressure nozzle, longitudinally draws
Multiple longitudinal high-pressure shower nozzles are respectively connected with water pipe, rear water hose is supplied water to heel row high-pressure nozzle by rear diversion cavity, main
Rake teeth group is also equipped with drag head, rake teeth group includes multiple rake teeths.
2. trailing suction hopper dredger drag head according to claim 1 it is characterised in that：Rake teeth in described rake teeth group, front row
High-pressure nozzle, heel row high-pressure nozzle and the equal forward downward of longitudinal high-pressure shower nozzle tilt, and identical with the angle of horizontal direction.
3. trailing suction hopper dredger drag head according to claim 2 it is characterised in that：Described angle is 30 °～60 °.
4. trailing suction hopper dredger drag head according to claim 1 it is characterised in that：Described rake arms rear portion is provided with rotating shaft,
Rotating shaft is used for supporting main drag head, and rake arms rear portion is provided with the protective cover matching with main drag head external surface shape, the main body of rake arms
Structure is welded by multi-sheets, and rake arms is internally provided with hollow cavity, and hollow cavity is externally connected to dredge pump in rake arms, rake
The closely main drag head side of arm rest offers row's mud-suction hole, and mud-suction hole is connected with the hollow cavity in rake arms, and the front end of rake arms adds
Work has connecting hole, and connecting hole is used for connecting the pipeline transporting soil.
5. the trailing suction hopper dredger drag head according to claim 1 or 4 it is characterised in that：Described rake arms top is provided with props up
Support seat, enters water manifold and is fixed on support base, support base is further fixed on front hydraulic cylinder fixed seat, front hydraulic cylinder fixed seat and liquid
Cylinder pressure rotates and connects, and hydraulic cylinder front end is rotated with hydraulic cylinders bearing and is connected, and hydraulic cylinders bearing is fixed in rear hydraulic cylinder fixed seat,
Hydraulic cylinder fixed seat is arranged on main drag head afterwards.
6. trailing suction hopper dredger drag head according to claim 1 it is characterised in that：Described rake teeth group includes multiple shapes
Identical rake teeth, each rake teeth is integrally wedge shaped, and including head, transition part and root, wherein head includes angle is obtuse angle
Main work surface and subtask face, main work surface is located inside rake teeth, is connected with the inwall of transition part, the inwall of transition part is outside
The cambered surface of lateral bend, the outer wall auxiliary connection work surface of transition part, the outer wall of transition part is divided into two sections, wherein direct with subtask face
Connect for tapered plane, be the arc-plane of inside lateral bend above tapered plane, the root of rake teeth is machined with mounting groove.
7. the trailing suction hopper dredger drag head according to claim 1 or 6 it is characterised in that：Described rake teeth group includes front-seat rake
Tooth and heel row rake teeth, front-seat rake teeth and heel row rake teeth are located at middle part and the rear portion on the downside of main drag head respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621023643.9U CN205999958U (en) | 2016-08-31 | 2016-08-31 | Trailing suction hopper dredger drag head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621023643.9U CN205999958U (en) | 2016-08-31 | 2016-08-31 | Trailing suction hopper dredger drag head |
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| Publication Number | Publication Date |
|---|---|
| CN205999958U true CN205999958U (en) | 2017-03-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621023643.9U Active CN205999958U (en) | 2016-08-31 | 2016-08-31 | Trailing suction hopper dredger drag head |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106193157A (en) * | 2016-08-31 | 2016-12-07 | 中交烟台环保疏浚有限公司 | Trailing suction hopper dredger drag head |
| WO2020077548A1 (en) * | 2018-10-16 | 2020-04-23 | 张彩萍 | Trailing suction hopper dredger structure |
| CN114396092A (en) * | 2022-02-18 | 2022-04-26 | 中港疏浚有限公司 | Self-propelled trailing suction hopper dredger drag head with automatic regulating function |
-
2016
- 2016-08-31 CN CN201621023643.9U patent/CN205999958U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106193157A (en) * | 2016-08-31 | 2016-12-07 | 中交烟台环保疏浚有限公司 | Trailing suction hopper dredger drag head |
| CN106193157B (en) * | 2016-08-31 | 2018-08-28 | 中交烟台环保疏浚有限公司 | Trailing suction hopper dredger drag head |
| WO2020077548A1 (en) * | 2018-10-16 | 2020-04-23 | 张彩萍 | Trailing suction hopper dredger structure |
| CN114396092A (en) * | 2022-02-18 | 2022-04-26 | 中港疏浚有限公司 | Self-propelled trailing suction hopper dredger drag head with automatic regulating function |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |