CN205999957U - Main drag head for drag head mechanism - Google Patents
Main drag head for drag head mechanism Download PDFInfo
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- CN205999957U CN205999957U CN201621023617.6U CN201621023617U CN205999957U CN 205999957 U CN205999957 U CN 205999957U CN 201621023617 U CN201621023617 U CN 201621023617U CN 205999957 U CN205999957 U CN 205999957U
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- drag head
- rake teeth
- aqueduct
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Abstract
The main drag head that this utility model is used for drag head mechanism 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 main drag head for drag head mechanism of the yield dredging closely knit fine sand.The main drag head that this utility model is used for drag head mechanism includes drag head body, it is provided with leading water chamber above drag head body, leading water chamber is connected with several water inlet pipes, water inlet pipe lower end extend on the downside of drag head body, 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 drag head body, multiple front rows high-pressure nozzle is laterally connected with aqueduct, multiple longitudinal high-pressure shower nozzles are respectively connected with longitudinal aqueduct, drag head rear body is provided with heel row high-pressure nozzle and supplies water, rake teeth group is also equipped with drag head body, rake teeth group includes multiple rake teeths.
Description
Technical field
This utility model is related to a kind of dredging work equipment, more particularly to a kind of main drag head for drag head mechanism.
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 the main drag head for drag head mechanism.
This utility model is used for the main drag head of drag head mechanism, including drag head body, is provided with front diversion above drag head body
Cavity, leading water chamber is connected with several water inlet pipes, and water inlet pipe lower end extend on the downside of drag head body, and water inlet pipe lower end connects
There are horizontal aqueduct and longitudinal aqueduct, horizontal aqueduct and longitudinal aqueduct to communicate, and be staggered on the downside of drag head body,
Multiple front rows high-pressure nozzle is laterally connected with aqueduct, longitudinal aqueduct is respectively connected with multiple longitudinal high-pressure shower nozzles, drag head
Rear body is provided with heel row high-pressure nozzle and supplies water, and drag head body is also equipped with rake teeth group, rake teeth group includes multiple rake teeths.
This utility model is used for the main drag head of drag head mechanism, rake teeth in wherein said rake teeth group, front-seat high-pressure nozzle, after
Row's high-pressure nozzle and the equal forward downward of longitudinal high-pressure shower nozzle tilt, and identical with the angle of horizontal direction.
This utility model is used for the main drag head of drag head mechanism, and wherein said angle is 30 °～60 °.
This utility model is used for the main drag head of drag head mechanism, and wherein said rake teeth group includes multiple shape identical rakes
Tooth, each rake teeth is integrally wedge shaped, and including head, transition part and root, wherein head includes the main work surface that angle is obtuse angle
With subtask face, main work surface be located at rake teeth inside, be connected with the inwall of transition part, the inwall of transition part is outside lateral bend
Cambered surface, the outer wall auxiliary connection work surface of transition part, the outer wall of transition part is divided into two sections, with subtask face is directly connected to is wherein
Tapered plane, 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 is used for the main drag head of drag head mechanism, and 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 drag head body respectively.
The main drag head difference from prior art that this utility model is used for drag head mechanism is that this utility model is used for harrowing
The main drag head of head mechanism improves on the basis of existing drag head, changes traditional drag head two row's shower nozzles only arranged side by side in front and back
Situation about being sprayed water, increased intensity and the area of water spray.This utility model is in the leading water chamber being connected to High-Pressure Water
Draw some water inlet pipes, water inlet pipe extend on the downside of drag head body and connect horizontal aqueduct and longitudinal aqueduct, laterally draws
Water pipe and longitudinal aqueduct connect 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 height
Area and the intensity on impact ground that pressure water spray covers, also improve cutting depth and the width of rake teeth.This utility model is used for
The main drag head of drag head mechanism operationally can fully break ground, and so that soil is mixed with water and siphoned away by dredging tube, be more conducive to dredge closely knit carefully
The surface of sand, effectively improves yield, manufactures easy to use, easy popularization simultaneously.
Below in conjunction with the accompanying drawings the main drag head for drag head mechanism of the present utility model is described further.
Brief description
Fig. 1 is used for the front view after the main drag head and drag head mechanism installation of drag head mechanism for this utility model；
Fig. 2 is used for the top view after the main drag head and drag head mechanism installation of drag head mechanism for this utility model；
Fig. 3 is used for the upward view after the main drag head and drag head mechanism installation of drag head mechanism for this utility model；
Fig. 4 is used for the axonometric chart after the main drag head and drag head mechanism installation of drag head mechanism for this utility model；
Fig. 5 is used for the axonometric chart at rake teeth upper right visual angle in the main drag head of drag head mechanism for this utility model；
Fig. 6 is used for the axonometric chart at rake teeth lower-left visual angle in the main drag head of drag head mechanism for this utility model；
Fig. 7 is used for the lower-left visual angle after drag head body and rake arms are installed in the main drag head of drag head mechanism for this utility model
Axonometric chart；
Fig. 8 is used for the upper right visual angle after drag head body and rake arms are installed in the main drag head of drag head mechanism for this utility model
Axonometric chart；
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；
Figure 11 is used for the structural representation of the main drag head of drag head mechanism for this utility model.
Specific embodiment
As shown in Fig. 1-Fig. 4 and Fig. 7, Fig. 8 and Figure 11, the main drag head that this utility model is used for drag head mechanism includes drag head originally
Body 1, drag head body 1 is rotatably supported in the rotating shaft 42 at drag head mechanism rake arms 18 rear portion, and rake arms 18 rear portion is provided with drag head originally
The protective cover 43 that body 1 external surface shape matches, protective cover 43 plays the effect of protection drag head body 1, prevents drag head originally simultaneously
Body 1 has impurity to enter inside drag head body 1 and rake arms 18 in rotation process.The agent structure of rake arms 18 is welded by multi-sheets
Form, processing is simple and has higher intensity.Rake arms 18 is internally provided with hollow cavity 46, and hollow cavity 46 is in rake arms
18 are externally connected to dredge pump, for extracting mud.Rake arms 18 offers row's mud-suction hole 41 near drag head body 1 side, inhales mud
Hole 41 is connected with the hollow cavity 46 in rake arms 18.The front end of rake arms 18 is machined with connecting hole 45, and connecting hole 45 is used for connecting
Transport the pipeline of soil.Support base 17 is installed above rake arms 18, 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 drag head body 1.Front hydraulic cylinder
Fixed seat 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 liquid
Cylinder pressure fixed seat 15 maintains static, and rear hydraulic cylinder fixed seat 10 drives drag head body 1 to rotate, and provides power for drag head body 1.
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 drag head body 1, and rear diversion cavity 7 is connected with multiple heel row high-pressure nozzles 6, after
Arrange rear portion along the length direction linear array of drag head body 1 on the downside of drag head body 1 for the high-pressure nozzle 6；Front water hose 12 is even
It is connected to the leading water chamber 8 being arranged on drag head body 1, leading water chamber 8 is connected with two water inlet pipes 21, water inlet pipe 21 lower end
It extend on the downside of drag head body 1, water inlet pipe 21 lower end is connected with a horizontal aqueduct 19 and three longitudinal aqueducts 20, laterally
Aqueduct 19 and longitudinal aqueduct 20 communicate, and are staggered on the downside of drag head body 1.Laterally it is connected with multiple on aqueduct 19
Front-seat high-pressure nozzle 4, longitudinal aqueduct 20 is respectively connected with multiple longitudinal high-pressure shower nozzles 2.Due to the restriction of locus, it is located at
Respectively it is connected with 7 longitudinal high-pressure shower nozzles 2 on the longitudinal aqueduct 20 of two of both sides, and be located at and connect on longitudinal aqueduct 20 of centre
It is connected to 8 longitudinal high-pressure shower nozzles 2.Heel row high-pressure nozzle 6, front-seat high-pressure nozzle 4 and longitudinal high-pressure shower nozzle 2 forward downward tilt
Angle is identical, is 30 °～60 ° with horizontal direction angle.
As shown in figures 3 to 6, drag head body 1 is also equipped with rake teeth group, the global shape of each rake teeth is wedge shaped, including
Head, transition part and root, wherein head include main work surface 32 and the subtask face 31 that angle is obtuse angle, main work surface 32 He
Subtask face 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
For the cambered surface of outside lateral bend, globoidal structure can be able to store more in order to rake teeth increase excavating depth simultaneously inside rake teeth
Soil, prevent 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 divides
For two sections, be wherein directly connected to subtask face for tapered plane 36, tapered plane 36 tiltedly can be put down in order to the quick discharge of soil
It is the arc-plane 35 of inside lateral bend above face 36, be easy to process and install.The root 34 of rake teeth is machined with mounting groove, is used for
Rake teeth and the connection of drag head body 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 respectively
Positioned at middle part and the rear portion of drag head body 1 downside, front-seat rake teeth 3 is identical with each shower nozzle with the angle of inclination of heel row rake teeth 5.
This utility model is used for the operation principle of the main drag head of drag head mechanism：High-Pressure Water by high-pressure flush pipeline enter into
Water manifold 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 before entrance
12 High-Pressure Water continues to flow into leading water chamber 8, flows to horizontal aqueduct 19 He of drag head body 1 downside by water inlet pipe 21
In longitudinal aqueduct 20, spray eventually through front-seat high-pressure nozzle 4 and longitudinal high-pressure shower nozzle 2；And water hose 11 after entering
Directly sprayed by heel row high-pressure nozzle 6 after diversion cavity 7 after High-Pressure Water entrance.The High-Pressure Water that each high-pressure nozzle sprays is used
In breaking ground, reduce rake teeth cutting force, make rake teeth be more easy to cut soil, improve the density dredged during closely knit fine sand, increase yield.In high pressure
Drag head body 1 beginning action after water flow jet, rake arms 18 remains stationary as, and drag head body 1 is rotated, and drives drag head body 1
On rake teeth group carry out mud diging working, hydraulic cylinder 13 give front two rows rake teeth provide power.
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 (5)
1. a kind of main drag head for drag head mechanism it is characterised in that：Including drag head body, above drag head body, it is provided with leading
Water chamber, leading water chamber is connected with several water inlet pipes, and water inlet pipe lower end extend on the downside of drag head body, and water inlet pipe lower end is even
It is connected to horizontal aqueduct and longitudinal aqueduct, horizontal aqueduct and longitudinal aqueduct communicate, and are staggered under drag head body
Side, horizontal aqueduct is connected with multiple front rows high-pressure nozzle, longitudinal aqueduct is respectively connected with multiple longitudinal high-pressure shower nozzles, rake
Head rear body is provided with heel row high-pressure nozzle and supplies water, and drag head body is also equipped with rake teeth group, rake teeth group includes multiple rakes
Tooth.
2. the main drag head for drag head mechanism according to claim 1 it is characterised in that：Rake teeth in described rake teeth group,
Front-seat 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. the main drag head for drag head mechanism according to claim 2 it is characterised in that：Described angle is 30 °～60 °.
4. the main drag head for drag head mechanism according to claim 1 it is characterised in that：Described rake teeth group includes multiple
Shape identical rake teeth, each rake teeth is integrally wedge shaped, and including head, transition part and root, wherein head includes angle is blunt
The main work surface at angle 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
The outwards 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 with subtask face
Be directly connected to for tapered plane, be the arc-plane of inside lateral bend above tapered plane, the root of rake teeth is machined with mounting groove.
5. the main drag head for drag head mechanism according to claim 1 or 4 it is characterised in that：Before described rake teeth group includes
Row's rake teeth 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 drag head body respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621023617.6U CN205999957U (en) | 2016-08-31 | 2016-08-31 | Main drag head for drag head mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621023617.6U CN205999957U (en) | 2016-08-31 | 2016-08-31 | Main drag head for drag head mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205999957U true CN205999957U (en) | 2017-03-08 |
Family
ID=58192722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621023617.6U Active CN205999957U (en) | 2016-08-31 | 2016-08-31 | Main drag head for drag head mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205999957U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108265767A (en) * | 2018-04-04 | 2018-07-10 | 长江南京航道工程局 | Dredger crushes drag head device |
-
2016
- 2016-08-31 CN CN201621023617.6U patent/CN205999957U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108265767A (en) * | 2018-04-04 | 2018-07-10 | 长江南京航道工程局 | Dredger crushes drag head device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180515 Address after: 300042 Taierzhuang Road, Hexi District, Hexi District, Tianjin Co-patentee after: Cccc-TDC Yantai Environmental Protection Dredging Co., Ltd. Patentee after: CCCC Tianjin Dredging Co., Ltd. Address before: 264000 Huan Hai Road, Zhifu District, Yantai, Shandong Province, No. 80 Patentee before: Cccc-TDC Yantai Environmental Protection Dredging Co., Ltd. |