CN220202806U - Drag head structure of drag suction dredger - Google Patents

Abstract

The application relates to a drag head structure of a drag suction dredger, relates to the technical field of drag suction dredgers, and comprises a shell, a collecting mechanism, a discharging pipe, an adjusting mechanism for adjusting the position of the shell and the ground surface, wherein the adjusting mechanism comprises: the rotary pipe is arranged on the discharge pipe and is sleeved on the shell in a rotary mode; the driving assembly is used for driving the shell to rotate on the rotating tube; and the detection assembly is used for detecting the shape of the surface of the river bed and is connected with the driving assembly. This application is through placing the drag head at the riverbed earth's surface, the flexible of telescopic link is controlled according to the riverbed earth's surface shape that detects to the detection subassembly for the casing is laminated with the riverbed earth's surface all the time, then excavates the subassembly and excavates and collect silt, and silt after the excavation gets into the casing after filtering through the filter screen, then has advanced the mashing subassembly and stirs silt garrulous, and in discharging into dredger through the material discharging pipe at last, cleans the filter screen through cleaning element after using a period, in order to improve dredger's production efficiency.

Description

Drag head structure of drag suction dredger

Technical Field

The application relates to the technical field of trailing suction hopper dredgers, in particular to a drag head structure of a trailing suction hopper dredger.

Background

In the dredging industry, a drag suction dredger is a large self-propelled, bin-mounted dredger equipped with a drag head structure dredger and a hydraulic suction device. When dredging, the river bottom is put down by the harrow suction pipe, the mud is absorbed from the river bottom by the harrow head structure and the mud suction pipe by utilizing the vacuum action of the mud pump, and enters the mud bin of the dredger, after the mud bin is full, the harrow is started to navigate to a mud throwing area for mud throwing, and the harrow head structure is the foremost equipment of the harrow suction dredge for sucking mud or sediment pipelines.

At present, the utility model patent with publication number of CN217204341U provides a drag head structure of a drag suction dredger, which is characterized in that a toothed plugboard is inserted into the interior of sediment to turn out the sediment and stones, the sediment is sucked through the action of an air pipe, meanwhile, a filter screen blocks the stones, and finally, the stones are brushed off through a sliding block, so that the drag head is used for sucking the sediment.

However, when the drag suction dredger is constructed, the river bed is uneven, so that the adhesion between the shell and the ground surface cannot be ensured, the soil breaking effect is reduced, the water quantity sucked by the drag head is increased, the specific gravity of mud in the drag head is reduced, and the production efficiency is reduced.

Disclosure of Invention

In order to improve the production efficiency of the dredger, the application provides a drag head structure of the drag suction dredger.

The application provides a harrow head structure of a harrow suction dredge adopts following technical scheme:

the utility model provides a drag suction dredger drag head structure, includes the casing be provided with on the casing be used for excavating and filterable collection mechanism to silt be provided with on the casing be used for with silt exhaust's row material pipe be provided with on the casing be used for adjusting the guiding mechanism of casing and earth's surface position, guiding mechanism includes:

the rotating pipe is arranged on the discharge pipe and is rotationally sleeved on the shell, and sediment in the shell enters the discharge pipe through the rotating pipe to be discharged;

the driving assembly is arranged on the rotating tube and used for driving the shell to rotate on the rotating tube;

and the detection assembly is arranged on the dredger and used for detecting the shape of the surface of the river bed and is connected with the driving assembly.

Through adopting above-mentioned technical scheme, place the drag head to the riverbed earth's surface, survey the riverbed earth's surface shape through detecting the subassembly and adjust the angle of rotation pipe and casing through drive assembly for the casing is laminated with the riverbed earth's surface all the time, then collects mechanism and excavates, filters and collect silt, and the silt after collecting is discharged into dredger through the discharge pipe and is stored, so as to improve dredger's production efficiency.

Further, the drive assembly includes:

the telescopic rod cylinder body is rotatably arranged on the rotating tube, the telescopic rod piston rod is rotatably arranged on the shell, and the telescopic rod is used for driving the shell to rotate on the rotating tube;

the oil tank is arranged on the shell and used for containing oil;

the hydraulic pump is arranged on the shell and used for supplying oil to the telescopic rod;

and the control valve is arranged on the shell and used for controlling the expansion and contraction of the telescopic rod.

Through adopting above-mentioned technical scheme, when the angle of casing and rotation pipe is adjusted to needs, start the hydraulic pump and discharge the fluid in the oil tank, in entering the telescopic link through control valve control fluid to this makes the telescopic link extend or shorten, finally makes the angle of casing and rotation pipe increase or reduce, with this angle that realizes adjusting row material pipe and casing for the casing is laminated with the riverbed earth's surface all the time, improves dredger's production efficiency.

Further, the detection assembly includes:

the detector is arranged on the dredger and is used for detecting the shape of the surface of the river bottom;

and the controller is arranged on the dredger and is electrically connected with the detector, and the controller is electrically connected with the control valve and is used for controlling the action of the control valve.

Through adopting above-mentioned technical scheme, during the use, the detector detects the riverbed earth's surface shape of casing front end earlier, and the action of control valve is controlled to the controller according to earth's surface shape to the angle between this regulation casing and the row material pipe makes casing and earth's surface laminating, improves dredger's production efficiency.

Further, be provided with the garrulous subassembly of stirring of row's of being convenient for material pipe with silt discharge in the casing, the garrulous subassembly of stirring includes:

the rotating shaft is rotatably arranged on the shell;

the plurality of rake teeth are arranged on the rotating shaft and used for stirring sediment;

and the crushing motor is arranged on the shell and used for driving the rotating shaft to rotate.

Through adopting above-mentioned technical scheme, start and stir garrulous motor drive pivot rotation for a plurality of rake teeth stir the great silt of casing internal volume, and the discharge pipe of being convenient for discharges silt.

Further, the collection mechanism includes:

the filter screen is arranged on the side wall of the shell and is used for filtering sediment entering the shell;

the excavating component is arranged on the shell and used for excavating sediment;

and the cleaning component is arranged on the filter screen and is used for cleaning the filter screen.

Through adopting above-mentioned technical scheme, excavate the subassembly and excavate and collect silt, in the silt after excavating gets into the casing after filtering through the filter screen, finally in discharging the material pipe row dredger through the row, after using a period, clean the subassembly cleans the filter screen, guarantees the cleanness of filter screen to this improves dredger's production efficiency.

Further, the excavation assembly includes:

the plugboard is arranged at the bottom of the shell, is positioned at the front end of the side wall where the filter screen is positioned and is used for being inserted into sediment for excavation;

the tooth points are arranged at the front end of the plugboard at intervals and are convenient to insert into sediment;

the collecting plate is arranged on the shell and positioned at the front end of the filter screen, and is used for collecting sediment excavated by the plugboard.

Through adopting above-mentioned technical scheme, the tooth point is convenient for drive the picture peg and inserts inside silt, and picture peg and tooth point insert inside silt and excavate silt during the use, and the silt of excavating gets into the filter screen after collecting through the collecting plate and filters, finally gets into in the casing and discharges into dredger through the row material pipe to this improves dredger's production efficiency.

Further, the cleaning assembly includes:

the threaded rod is rotatably arranged on the shell;

the scraping plate is arranged on the shell in a sliding manner and is in threaded connection with the threaded rod, and the scraping plate slides on the surface of the filter screen and is used for cleaning the surface of the filter screen;

and the driving motor is arranged on the shell and used for driving the threaded rod to rotate.

Through adopting above-mentioned technical scheme, when needs clean the filter screen, start driving motor and drive the threaded rod and rotate, the threaded rod drives the scraper blade and slides in the guide way and clear up the filter screen surface, and the motor reversal drives driving motor and returns to normal position when scraper blade and travel switch contact, and driving motor stops to this realizes cleaning the filter screen.

Further, be provided with the safety cover that is used for protecting driving motor respectively on the casing, the safety cover is used for preventing water from getting into in the safety cover.

Through adopting above-mentioned technical scheme, the safety cover seals the protection to driving motor and mashing motor for the outside water of safety cover can't get into in the safety cover, the motor normal work of being convenient for.

In summary, the present application includes the following beneficial technical effects:

through placing the drag head at the riverbed earth's surface, the flexible of telescopic link is controlled according to the riverbed earth's surface shape that detects to the detection subassembly for the casing is laminated with the riverbed earth's surface all the time, then excavates the subassembly and excavates and collect silt, and the silt after the excavation gets into the casing after filtering through the filter screen, then stirs garrulous subassembly with silt, finally discharges into dredger through the discharge pipe, cleans the filter screen through cleaning element after using a period, in order to improve dredger's production efficiency.

Drawings

FIG. 1 is a schematic structural view of the present application;

FIG. 2 is a schematic structural view of the present application;

FIG. 3 is a schematic view of the construction of the present application, primarily showing the internal structure of the housing, with the rotation tube and the housing side walls being sectioned;

fig. 4 is a schematic structural view of the present application, mainly showing a mashing assembly.

Reference numerals: 1. a housing; 11. a through hole; 12. a fixed block; 13. a guide groove; 14. a discharge port; 2. a collection mechanism; 21. a filter screen; 22. an excavating assembly; 221. inserting plate; 222. tooth tips; 223. a collection plate; 23. a cleaning assembly; 231. a threaded rod; 232. a scraper; 233. a driving motor; 3. a mashing assembly; 31. a rotating shaft; 32. rake teeth; 33. a mincing motor; 4. a protective cover; 5. an adjusting mechanism; 51. a rotary tube; 52. a drive assembly; 521. a telescopic rod; 522. an oil tank; 523. a hydraulic pump; 524. a control valve; 53. a detection assembly; 531. a detector; 532. a controller; 6. a dredger; 7. and a discharge pipe.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-4.

The embodiment of the application discloses a drag head structure of a drag suction dredger.

Referring to fig. 1, a drag head structure of a drag suction dredger comprises a shell 1, a collecting mechanism 2 for excavating and filtering sediment is arranged on the shell 1, a discharge pipe 7 for discharging sediment is arranged on the shell 1, and an adjusting mechanism 5 for adjusting the positions of the shell 1 and the ground surface is arranged on the shell 1.

Referring to fig. 1 and 2, when the drag suction dredger 6 is constructed, the dredger 6 is driven to a designated position, then the casing 1 is placed on the surface of the river bottom, the casing 1 is communicated with the dredger 6 through the discharge pipe 7, vacuum negative pressure is arranged in the discharge pipe 7, the dredger 6 is started, the dredger 6 drives the casing 1 to move on the surface of the river bottom, and part of sediment on the surface of the river bottom enters the casing 1 and is finally discharged into the dredger 6 through the discharge pipe 7.

Referring to fig. 2 and 3, the casing 1 is of a hollow structure, a side wall of the casing 1, which is close to the advancing direction of the dredger 6, is inclined, the inclination angle between the inclined side wall and the bottom of the casing 1 is smaller than 90 degrees, a through hole 11 for entering sediment is formed in the inclined side wall, a fixed block 12 is horizontally and fixedly arranged on the top of the inclined side wall, and a guide groove 13 is formed in the fixed block 12; a discharge hole 14 is formed in one side, away from the through hole 11, of the shell 1, the bottom edge of the discharge hole 14 is in an arc structure, and the arc is formed by taking the top edge of the discharge hole 14 as a circle center and taking the side edge of the discharge hole 14 as a radius; the collecting mechanism 2 comprises a filter screen 21 and an excavating component 22, wherein the filter screen 21 is fixedly arranged on the shell 1 and positioned at the through hole 11, and the filter screen 21 filters sediment entering the shell 1.

Referring to fig. 2 and 3, the excavating component 22 is disposed on the housing 1 and is used for excavating sediment, the excavating component 22 comprises an inserting plate 221, a plurality of tooth points 222 and a collecting plate 223, the inserting plate 221 is fixedly mounted on the bottom of the housing 1 and is positioned at the front end of the inclined side wall, the lower surface of the inserting plate 221 is mutually parallel to the lower surface of the bottom of the housing 1, the plurality of tooth points 222 are fixedly mounted on the front end of the inserting plate 221 at intervals, the tooth points 222 are convenient for driving the inserting plate 221 to be inserted into sediment, the inserting plate 221 and the tooth points 222 are inserted into sediment and excavate the sediment, and the excavated sediment enters the housing 1 after entering the filter screen 21 for filtration; the collecting plate 223 is fixedly installed on the inclined side wall of the shell 1, the filter screen 21 is located at the center of the collecting plate 223, the collecting plate 223 is fixedly installed on the shell 1, two collecting plates 223, the plugboard 221 and the fixed block 12 form a collecting space which is convenient for collecting sediment, and the collecting space is used for collecting sediment excavated by the plugboard 221 and finally enters the filter screen 21 for filtering.

Referring to fig. 2 and 3, the collecting mechanism 2 further includes a cleaning assembly 23, the cleaning assembly 23 is disposed on the filter screen 21 and is used for cleaning the filter screen 21, the cleaning assembly 23 includes a threaded rod 231, a scraper 232 and a driving motor 233, the threaded rod 231 is rotatably mounted on the housing 1, the scraper 232 is slidably mounted on the fixed block 12 and slides along the guide groove 13, the scraper 232 is in threaded connection with the threaded rod 231, and the scraper 232 cleans the upper surface of the filter screen 21 when sliding along the guide groove 13; the driving motor 233 is fixedly arranged on the upper surface of the top of the shell 1, the shell 1 is fixedly provided with a protective cover 4, the protective cover 4 is used for sealing and protecting the driving motor 233, the protective cover 4 is used for preventing water from entering the protective cover 4 to damage the driving motor 233, the threaded rod 231 is fixedly arranged on an output shaft of the driving motor 233, the driving motor 233 drives the threaded rod 231 to rotate and drive the scraping plate 232 to slide in the guide groove 13, one end, far away from the driving motor 233, of the guide groove 13 is fixedly provided with a travel switch, the travel switch is electrically connected with the driving motor 233, and the driving motor 233 is reversed when the scraping plate 232 is in contact with the travel switch; when the filter screen 21 needs to be cleaned, the driving motor 233 is started to drive the threaded rod 231 to rotate, the threaded rod 231 drives the scraping plate 232 to slide in the guide groove 13 and clean the surface of the filter screen 21, and when the scraping plate 232 contacts with the travel switch, the motor is reversed to drive the driving motor 233 to return to the original position, and the driving motor 233 is stopped, so that the filter screen 21 is cleaned.

Referring to fig. 3 and 4, a crushing assembly 3 for facilitating the discharge of silt by the discharge pipe 7 is arranged in the shell 1, the crushing assembly 3 comprises a rotating shaft 31, a plurality of rake teeth 32 and a crushing motor 33, the rotating shaft 31 is rotatably arranged in the shell 1, the plurality of rake teeth 32 are arranged on the rotating shaft 31 at intervals, the crushing motor 33 is fixedly arranged on the shell 1, a protective cover 4 is fixedly arranged on the shell 1, the protective cover 4 is used for sealing and protecting the crushing motor 33, the protective cover 4 is used for preventing water from entering the protective cover 4 to damage the crushing motor 33, and the rotating shaft 31 is fixedly arranged on an output shaft of the crushing motor 33; the stirring motor 33 is started to drive the rotating shaft 31 to rotate, so that the plurality of rake teeth 32 stir the sediment with larger volume in the shell 1, and the sediment is discharged by the discharge pipe 7 conveniently.

Referring to fig. 1 and 2, the adjusting mechanism 5 includes a rotating tube 51, a driving assembly 52 and a detecting assembly 53, the rotating tube 51 is fixedly installed on the discharging tube 7, the rotating tube 51 is rotatably sleeved on the casing 1, the rotating tube 51 uses the top edge of the discharging opening 14 as a rotation center, and the side edge of the discharging opening 14 as a radius is rotatably sleeved on the casing 1.

Referring to fig. 2 and 3, the driving assembly 52 is provided on the rotation pipe 51 and is used for driving the housing 1 to rotate on the rotation pipe 51, the driving assembly 52 includes a telescopic rod 521, an oil tank 522, a hydraulic pump 523 and a control valve 524, the telescopic rod 521 is a hydraulic telescopic rod 521, a cylinder body of the telescopic rod 521 is fixedly mounted on the rotation pipe 51, a piston rod of the telescopic rod 521 is fixedly mounted on the housing 1, and the telescopic rod 521 is used for driving the housing 1 to rotate on the rotation pipe 51; the oil tank 522 is fixedly arranged on the upper surface of the shell 1, the oil tank 522 is used for containing oil, the hydraulic pump 523 is fixedly arranged on the shell 1, and the hydraulic pump 523 is used for discharging the oil in the oil tank 522 into the telescopic rod 521, so that the telescopic rod 521 can be telescopic; a control valve 524 is fixedly installed on the housing 1, and the control valve 524 is used to control a passage through which the hydraulic pump 523 supplies oil and the oil flows, thereby achieving the purpose that the control valve 524 controls the expansion and contraction of the expansion and contraction rod 521. When the angle between the shell 1 and the discharge pipe 7 needs to be increased, the control valve 524 starts the hydraulic pump 523 to discharge oil into the bottom of the cylinder body, so that the telescopic rod 521 stretches to drive the shell 1 to rotate on the rotating pipe 51, and the angle between the shell 1 and the discharge pipe 7 is increased; conversely, if the angle between the housing 1 and the discharge pipe 7 needs to be reduced, the control valve 524 activates the hydraulic pump 523 to discharge the oil into the top of the cylinder, so that the telescopic rod 521 is shortened, and the housing 1 is driven to rotate on the rotating pipe 51, thereby reducing the angle between the housing 1 and the discharge pipe 7.

Referring to fig. 1 and 2, a detection assembly 53 is provided on the dredger 6 and is used to detect the shape of the surface of the river bed and is connected to the driving assembly 52, the detection assembly 53 includes a detector 531 and a controller 532, and the detector 531 is fixedly installed on the dredger 6 and is used to detect the shape of the surface of the river bed; a controller 532, the controller 532 being fixedly mounted on the dredger 6 and electrically connected to the detector 531, the controller 532 being electrically connected to the control valve 524 and for controlling the operation of the control valve 524; when the device is used, the detector 531 detects the shape of the surface of the river bed at the front end of the shell 1, and the controller 532 controls the action of the control valve 524 according to the shape of the surface of the river bed, so that the angle between the shell 1 and the discharge pipe 7 is adjusted, the shell 1 is attached to the surface of the river bed, and the ground breaking effect is improved.

The working principle of the embodiment of the application is as follows:

placing the drag head on the surface of a river bed, controlling the expansion and contraction of the telescopic rod 521 according to the shape of the surface of the river bed detected by the detector 531, enabling the shell 1 to be always attached to the surface of the river bed, inserting the plugboards 221 and the tooth tips 222 into the sediment for digging, filtering the dug sediment through the filter screen 21, enabling the sediment to enter the shell 1, stirring the sediment through the rake teeth 32, finally discharging the sediment into the dredger 6 through the discharge pipe 7, and cleaning the filter screen 21 through the scraping plates 232 after a period of use, so that the production efficiency of the dredger 6 is improved.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims (8)

1. The utility model provides a drag suction dredger harrow head structure which characterized in that: including casing (1) be provided with on casing (1) be used for excavateing and filterable collection mechanism (2) to silt be provided with on casing (1) be used for with silt exhaust row material pipe (7) be provided with on casing (1) be used for adjusting adjustment mechanism (5) of casing (1) and earth's surface position, adjustment mechanism (5) include:

the rotary pipe (51) is arranged on the discharge pipe (7) and is rotationally sleeved on the shell (1), and sediment in the shell (1) enters the discharge pipe (7) through the rotary pipe (51) to be discharged;

a drive assembly (52), the drive assembly (52) being arranged on the rotation tube (51) and being used for driving the housing (1) to rotate on the rotation tube (51);

and the detection assembly (53) is arranged on the dredger (6) and used for detecting the shape of the surface of the river bed and is connected with the driving assembly (52).

2. The drag head structure of a drag suction dredger according to claim 1, wherein: the drive assembly (52) includes:

the telescopic rod (521), the cylinder body of the telescopic rod (521) is rotatably arranged on the rotary pipe (51), the piston rod of the telescopic rod (521) is rotatably arranged on the shell (1), and the telescopic rod (521) is used for driving the shell (1) to rotate on the rotary pipe (51);

-a tank (522), said tank (522) being provided on the housing (1) and being intended to hold oil;

a hydraulic pump (523), wherein the hydraulic pump (523) is arranged on the shell (1) and is used for supplying oil to the telescopic rod (521);

and a control valve (524), wherein the control valve (524) is arranged on the shell (1) and is used for controlling the expansion and contraction of the expansion and contraction rod (521).

3. The drag head structure of a drag suction dredger according to claim 1, wherein: the detection assembly (53) comprises:

a detector (531), said detector (531) being arranged on a dredger (6) and being adapted to detect the shape of the surface of the river bottom;

and a controller (532), the controller (532) being provided on the dredger (6) and being electrically connected to the detector (531), the controller (532) being electrically connected to the control valve (524) and being adapted to control the operation of the control valve (524).

4. The drag head structure of a drag suction dredger according to claim 1, wherein: be provided with in casing (1) and be convenient for arrange material pipe (7) with silt exhaust mashing subassembly (3), mashing subassembly (3) include:

a rotating shaft (31), wherein the rotating shaft (31) is rotatably arranged on the shell (1);

a plurality of rake teeth (32), wherein the plurality of rake teeth (32) are arranged on the rotating shaft (31) and are used for carrying out crushing treatment on sediment;

and the crushing motor (33) is arranged on the shell (1) and used for driving the rotating shaft (31) to rotate.

5. The drag head structure of a drag suction dredger according to claim 1, wherein: the collection mechanism (2) comprises:

the filter screen (21) is arranged on the side wall of the shell (1) and is used for filtering sediment entering the shell (1);

-an excavating assembly (22), the excavating assembly (22) being arranged on the housing (1) and being adapted to excavate sediment;

and the cleaning assembly (23) is arranged on the filter screen (21) and is used for cleaning the filter screen (21).

6. The drag head structure of a drag suction dredger according to claim 5, wherein: the excavation assembly (22) includes:

the inserting plate (221) is arranged at the bottom of the shell (1) and positioned at the front end of the side wall where the filter screen (21) is positioned and used for being inserted into sediment for excavation;

the tooth tips (222) are arranged at intervals at the front end of the plugboard (221) and are convenient to insert into sediment;

the collecting plate (223) is arranged on the shell (1) and positioned at the front end of the filter screen (21), and the collecting plate (223) is used for collecting sediment excavated by the inserting plate (221).

7. The drag head structure of a drag suction dredger according to claim 5, wherein: the cleaning assembly (23) comprises:

a threaded rod (231), the threaded rod (231) being rotatably arranged on the housing (1);

the scraping plate (232) is arranged on the shell (1) in a sliding manner and is in threaded connection with the threaded rod (231), and the scraping plate (232) slides on the surface of the filter screen (21) and is used for cleaning the surface of the filter screen (21);

and a driving motor (233), wherein the driving motor (233) is arranged on the shell (1) and is used for driving the threaded rod (231) to rotate.

8. The drag head structure of a drag suction dredger according to claim 7, wherein: the casing (1) is provided with a protective cover (4) for protecting the driving motor (233), and the protective cover (4) is used for preventing water from entering the protective cover (4).