CN212001339U

CN212001339U - A harrow suction means for dredge boat

Info

Publication number: CN212001339U
Application number: CN202020347860.3U
Authority: CN
Inventors: 刘宏辉; 刘科岑
Original assignee: Zhejiang Zhoulong Ocean Engineering Co ltd
Current assignee: Zhejiang Zhoulong Ocean Engineering Co ltd
Priority date: 2020-03-18
Filing date: 2020-03-18
Publication date: 2020-11-24
Anticipated expiration: 2030-03-18

Abstract

The utility model provides a harrow suction means for dredge belongs to harrow suction means technical field. The utility model discloses a mechanism is inhaled to defeated mud pipe, arc bent plate, scraper blade and hank, the arc bent plate sets firmly the one end of keeping away from the shrouding at defeated mud pipe, the length direction of arc bent plate is mutually perpendicular with the length direction of defeated mud pipe, the both sides of arc bent plate are equipped with the shrouding, form between arc bent plate and two shroudings and inhale the mud chamber, be equipped with the through-hole on the arc bent plate, defeated mud pipe is linked together through the through-hole and inhale the mud chamber, the vertical setting of scraper blade is kept away from on one side of defeated mud pipe at the arc bent plate, the lower side of scraper blade is equipped with a plurality of teeth, the hank is inhaled the setting and is inhaling the mud intracavity, the hank is inhaled the mechanism and can be sucked to defeated mud in. The utility model discloses can improve the efficiency of trailing and inhaling silt, can also reduce the mud diffusion, avoid polluting the water on every side.

Description

A harrow suction means for dredge boat

Technical Field

The utility model belongs to the technical field of the harrow suction means, a harrow suction means for dredge is related to.

Background

In the dredging industry, the drag device for a dredger is a large self-propelled, stowable dredger equipped with a drag head excavator and a hydraulic suction device. When the dredger is used for dredging, the rake suction head is put down to the river bottom, mud is absorbed from the river bottom through the rake head and the mud conveying pipe by utilizing the vacuum action of the mud suction pump and enters a mud storage cabin of the dredger, and after the mud storage cabin is filled, the rake is lifted to sail to a mud throwing area for mud discharging, or the excavated mud is directly discharged out of the dredger.

The drag head structure is the foremost equipment of a mud or sediment pipeline sucked by a drag suction device of a dredger, the existing drag head structure is generally provided with drag teeth and a high-pressure water spray nozzle, and the conventional method is that the mechanical excavation of the drag teeth is matched with the high-pressure flushing hydraulic excavation of the drag head structure.

But along with the continuous expansion of construction scope, the condition of stereoplasm clay, sand, the abominable soil property of clay and sand increases gradually, and the trailing suction efficiency in current harrow head structure unit interval is low, and the silt piece blocks up mud conveying pipe easily, influences the mud work of inhaling.

Disclosure of Invention

The utility model aims at having the above-mentioned problem to current technique, provided a harrow suction device for dredge, can improve the efficiency that the silt was inhaled to the harrow, can also rub the silt piece, avoid silt to block up defeated mud pipe.

The purpose of the utility model can be realized by the following technical proposal:

a raking device for a dredge vessel comprising: one end of the mud conveying pipe is provided with a sealing plate;

the mud conveying pipe comprises an arc-shaped bent plate, a mud conveying pipe and a mud sucking cavity, wherein the arc-shaped bent plate is fixedly arranged at one end, far away from a sealing plate, of the mud conveying pipe, the length direction of the arc-shaped bent plate is perpendicular to the length direction of the mud conveying pipe, the sealing plates are arranged on two sides of the arc-shaped bent plate, the mud sucking cavity is formed between the arc-shaped bent plate and the two sealing plates, a through hole is formed in the arc-shaped bent plate, and the mud conveying pipe is communicated with;

the scraping plate is vertically arranged on one side edge of the arc-shaped bending plate, which is far away from the mud conveying pipe, and a plurality of teeth are arranged on the lower side edge of the scraping plate;

the cutter suction mechanism is arranged in the mud suction cavity and can suck the smashed mud entering the mud suction cavity into the mud conveying pipe after being smashed.

In the above-described drag apparatus for a dredge vessel, the cutter suction mechanism comprises:

the motor is fixedly arranged on the outer side of the sealing plate;

the rotary shaft is rotatably arranged between the two sealing plates, the length direction of the rotary shaft is consistent with that of the arc-shaped bent plate, a roller is fixedly arranged on the rotary shaft, and one end of the rotary shaft penetrates through the sealing plates and is in transmission connection with an output shaft of a motor;

the reamer comprises a first spiral reamer and a second spiral reamer, wherein the first spiral reamer and the second spiral reamer are arranged on the wheel surfaces of two sides of the roller respectively, the spiral directions of the first spiral reamer and the second spiral reamer are opposite, and the through hole is positioned between the first spiral reamer and the second spiral reamer.

In the harrowing and suction device for the dredger, the joint of the mud conveying pipe and the arc-shaped bent plate is in an outward-expanding horn shape, and a spiral groove is formed in the pipe wall.

In the harrowing and suction device for the dredger, the first spiral reamer and the second spiral reamer are respectively provided with a plurality of bumps.

In the harrowing and suction device for the dredger, a plurality of water inlet pipes are fixedly arranged on one side, close to the mud conveying pipe, of the arc-shaped bent plate in parallel, the length direction of the water inlet pipes is consistent with that of the mud conveying pipe, and one ends, far away from the mud suction cavity, of the water inlet pipes are in an outward-expanding horn shape.

Compared with the prior art, the utility model has the advantages of it is following:

1. the drag suction device is arranged at the tail part of the dredger, the drag suction device is placed downwards, the scraper plate on the arc-shaped bent plate is in contact with the water bottom, the dredger is started to move forwards, teeth below the scraper plate move forwards to scrape sludge at the water bottom, the sludge and water are mixed to form slurry, the slurry is limited in the mud suction cavity, the slurry can be reduced from diffusing to the surrounding water area to influence the surrounding water environment, then the cutter suction mechanism is started to suck the sludge entering the mud suction cavity into the mud conveying grinding pipe, and the operation is simple; in addition, as the mud suction cavity has larger capacity, more mud can be raked and sucked in unit time, and the raking and sucking efficiency is improved;

2. the dredger moves forward, the scraper blade and the teeth scrape the bottom sludge into the sludge suction cavity, the motor is started to drive the rotating shaft and the roller to rotate, the first spiral reamer and the second spiral reamer on the roller rotate simultaneously to rub the sludge entering the sludge suction cavity, the first spiral reamer rotates the sludge on the right side of the sludge suction cavity to the through hole, the second spiral reamer rotates the sludge on the left side of the sludge suction cavity to the through hole, the sludge in the sludge suction cavity can rapidly penetrate through the through hole to be sucked into the sludge conveying pipe, and the twisting and sucking efficiency is improved;

3. when the dredger moves forward, water flows in from the front end of the water inlet pipe and then is sprayed out from the rear end of the water inlet pipe to impact sludge in the sludge suction cavity, so that the sludge crushing effect is improved; in addition, because the one end that the suction mud chamber was kept away from to the inlet tube is the flaring loudspeaker form outward, can increase the water yield of inflow inlet tube in the unit interval, improves rivers spun speed, the increase is to the impact force of silt.

Drawings

FIG. 1 is a schematic structural view of the present drag apparatus for a dredger;

FIG. 2 is a cross-sectional view A-A of FIG. 1;

FIG. 3 is an enlarged view of a portion of FIG. 2 at B;

fig. 4 is a cross-sectional view of C-C in fig. 3.

In the figure, 1, a ship structure; 11. a sludge storage cabin; 12. an electric winch; 121. a wire rope; 13. a first dredge pump; 14. a gantry; 141. a fixed pulley; 2. rotating the rod; 21. a sludge collection tank; 211. a sludge collection cavity; 22. a second dredge pump; 23. hinging a shaft; 24. a first limit plate; 3. a mud conveying pipe; 31. a helical groove; 32. a second limiting plate; 4. an arc-shaped bent plate; 41. a through hole; 42. a sludge suction cavity; 43. closing the plate; 44. a rotating shaft; 45. a drum; 451. a first helical reamer; 452. a second helical reamer; 453. a bump; 46. a motor; 461. a protective cover; 5. a squeegee; 51. teeth; 6. and (4) a water inlet pipe.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1 to 4, a drag device for a dredger comprises a mud conveying pipe 3, an arc-shaped bent plate 4, a scraper 5 and a cutter suction mechanism.

And one end of the mud conveying pipe 3 is provided with a sealing plate.

Arc bent plate 4 sets firmly the one end of keeping away from dwang 2 at defeated mud pipe 3, the length direction of arc bent plate 4 is unanimous with hull structure 1's width direction, the both sides of arc bent plate 4 are equipped with shrouding 43, form between arc bent plate 4 and two shrouding 43 and inhale mud chamber 42, be equipped with through-hole 41 on the arc bent plate 4, defeated mud pipe 3 is linked together through-hole 41 and inhale mud chamber 42, the vertical scraper blade 5 that is equipped with of a side that defeated mud pipe 3 was kept away from to arc bent plate 4, the lower side of scraper blade 5 is equipped with a plurality of teeth 51.

The cutter-suction mechanism is arranged in the sludge suction cavity 42, and can suck the ground sludge entering the sludge suction cavity 42 into the sludge conveying pipe 3.

Preferably, the harrowing device is mounted on a dredger comprising a hull structure 1, a swivelling lever 2, a drive mechanism and a conveying mechanism.

A sludge storage cabin 11 is arranged in the hull structure 1.

Articulated shaft 23 is passed through to the one end of dwang 2 and the afterbody at hull structure 1, the length direction of dwang 2 is unanimous with hull structure 1's length direction, articulated shaft 23's axial is unanimous with hull structure 1's width direction, the other end of dwang 2 and the one end that defeated mud pipe 3 was equipped with the shrouding are articulated, initial state, defeated mud pipe 3 is coaxial with dwang 2.

Actuating mechanism sets up on hull structure 1, actuating mechanism can drive dwang 2 and rotate about articulated shaft 23.

The limiting mechanism is arranged between the mud conveying pipe 3 and the rotating rod 2, and when the mud conveying pipe 3 rotates downwards to be coaxial with the rotating rod 2, the limiting mechanism can limit the mud conveying pipe 3 to continue to rotate downwards.

Conveying mechanism sets up on dwang 2, conveying mechanism can be with the silt water suction in the defeated mud pipe 3 to store up in the mud cabin 11.

The dredger is started to sail to a specified water area, the rotating rod 2 is rotated downwards through the driving mechanism, the rotating rod 2 and the mud conveying pipe 3 are placed at the water bottom, the scraper 5 on the arc-shaped bent plate 4 is in contact with the water bottom, the dredger is started to move forwards, the teeth 51 placed under the scraper 5 move forwards to scrape the mud at the water bottom, the mud and the water are mixed to form mud, the mud is limited in the mud suction cavity 42 and can be reduced from diffusing to the surrounding water area to influence the surrounding water environment, then the cutter suction mechanism is started to grind the mud entering the mud suction cavity 42 and suck the mud into the mud conveying pipe 3, the conveying mechanism is started to convey the mud in the mud conveying pipe 3 into the mud storage cabin 11 in the ship body structure 1, the operation is simple, more mud can be raked and sucked in unit time due to the large capacity of the mud suction cavity 42, and the raking and sucking efficiency is improved; in addition, because mud conveying pipe 3 articulates on dwang 2, tooth 51 on scraper blade 5 meets harder rock, and mud conveying pipe 3 can drive arc bent plate 4 upwards and rotate, makes scraper blade 5 and tooth 51 walk around the rock, avoids causing the destruction to scraper blade 5 and tooth 51.

Specifically, the drive mechanism includes a gantry 14 and an electric winch 12.

The gantry 14 is fixedly arranged at the tail part of the ship body structure 1, and a fixed pulley 141 is arranged at the lower end of the gantry 14.

The electric winch 12 is fixedly arranged on the hull structure 1, a steel wire rope 121 is wound on a reel of the electric winch 12, and the free end of the steel wire rope 121 penetrates through the fixed pulley 141 and the end part of the steel wire rope is fixedly connected to the rotating rod 2.

Starting the electric winch 12, releasing the steel wire rope 121, driving the rotating rod 2 to rotate downwards, enabling the mud conveying pipe 3 and the arc-shaped bent plate 4 to rotate downwards to be in contact with the water bottom, starting the dredger to advance, raking up the underwater silt through the scraper blade 5 and the teeth 51, starting the electric winch 12 after the raking work is finished, tightening up the steel wire rope 121, driving the rotating rod 2 to rotate upwards, enabling the mud conveying pipe 3 and the arc-shaped bent plate 4 to rotate upwards to the water surface, and reducing the sailing resistance of the dredger.

Specifically, the stopper mechanism includes a first stopper plate 24 and a second stopper plate 32.

The first limiting plate 24 is fixedly arranged on the lower side face, far away from the end part of the ship body structure 1, of the rotating rod 2, and the cross sections of the first limiting plate 24 and the rotating rod 2 are parallel.

The second limiting plate 32 is fixedly arranged on the lower side face of the end part, far away from the arc-shaped bent plate 4, of the mud conveying pipe 3, the cross section of the second limiting plate 32 is parallel to that of the mud conveying pipe 3, and when the mud conveying pipe 3 rotates to be coaxial with the rotating rod 2, the first limiting plate 24 is in contact with the second limiting plate 32.

Initial state, under the effect of first limiting plate 24 and second limiting plate 32, defeated mud pipe 3 and dwang 2 are in coaxial state, make defeated mud pipe 3 can follow dwang 2 tilting, when scraper blade 5 and tooth 51 met the rock, defeated mud pipe 3 can upwards rotate round dwang 2, make scraper blade 5 and tooth 51 walk around the rock, avoid causing the destruction to scraper blade 5 and tooth 51.

Specifically, the reaming and sucking mechanism includes a motor 46, a rotating shaft 44, a first helical reamer 451, and a second helical reamer 452.

The motor 46 is fixedly arranged on the outer side of the sealing plate 43, and a protective cover 461 is arranged on the outer side of the motor 46.

The rotating shaft 44 is rotatably arranged between the two sealing plates 43, the length direction of the rotating shaft 44 is consistent with that of the arc-shaped bent plate 4, the rotating shaft 44 is fixedly provided with a roller 45, one end of the rotating shaft 44 penetrates through the sealing plates 43, and the end part of the rotating shaft is fixedly connected with an output shaft of the motor 46.

The first helical reamer 451 and the second helical reamer 452 are respectively arranged on the wheel surfaces of two sides of the rotary drum 45, the helical directions of the first helical reamer 451 and the second helical reamer 452 are opposite, and the through hole 41 is positioned between the first helical reamer 451 and the second helical reamer 452.

The dredger moves forward, the scraper 5 and the teeth 51 scrape the bottom sludge into the sludge suction cavity 42, the motor 46 is started to drive the rotating shaft 44 and the roller 45 to rotate, the first spiral reamer 451 and the second spiral reamer 452 on the roller 45 rotate simultaneously, the sludge entering the sludge suction cavity 42 is ground, the sludge on the right side of the sludge suction cavity 42 is rotated to the through hole 41 by the first spiral reamer 451, the sludge on the left side of the sludge suction cavity 42 is rotated to the through hole 41 by the second spiral reamer 452, the sludge in the sludge suction cavity 42 can be rapidly sucked into the sludge conveying pipe 3 through the through hole 41, and the grinding and suction efficiency is improved.

Preferably, a plurality of projections 453 are disposed on each of the first helical reamer 451 and the second helical reamer 452, and the projections 453 can increase the friction force between the reamer and sludge, so that the sludge can be smoothly transferred to the through hole 41.

Specifically, the conveying mechanism includes a sludge collection tank 21, a first sludge suction pump 13, and a second sludge suction pump 22.

The sludge collecting box 21 is fixedly arranged on the rotating rod 2, and a sludge collecting cavity 211 is arranged in the sludge collecting box 21.

The first sludge suction pump 13 is fixedly arranged on the ship body structure 1, the inlet of the first sludge suction pump 13 is communicated with the sludge collecting cavity 211 through a pipe, and the inlet of the first sludge suction pump 13 is communicated with the sludge storage cabin 11 through a pipe.

The second dredge pump 22 is fixedly arranged on the rotating rod 2, the inlet of the second dredge pump 22 is communicated with the mud conveying pipe 3 through a pipe, and the outlet of the second dredge pump 22 is communicated with the mud collecting cavity 211 through a pipe.

The first sludge suction pump 13 and the second sludge suction pump 22 are started, the second sludge suction pump 22 sucks sludge in the sludge conveying pipe 3 into the sludge collection tank 2, the first sludge suction pump 13 sucks sludge in the sludge collection tank 2 into the sludge storage cabin 11, the first sludge suction pump 13 and the second sludge suction pump 22 are arranged in series, the pump lift of the pump can be increased, and the sludge suction efficiency is improved.

Particularly, a plurality of water inlet pipes 6 are fixedly arranged on one side of the arc-shaped bent plate 4 close to the mud conveying pipe 3 in parallel, the length direction of the water inlet pipes 6 is consistent with that of the mud conveying pipe 3, and one end, far away from the mud suction cavity 42, of each water inlet pipe 6 is in an outward-expanding horn shape.

When the dredger moves forward, water flows in from the front end of the water inlet pipe 6 and then is sprayed out from the rear end to impact the sludge in the sludge suction cavity 42, so that the sludge crushing effect is improved; in addition, because the end of the water inlet pipe 6 far away from the sludge suction cavity 42 is in the shape of an outward-expanding horn, the amount of water flowing into the water inlet pipe 6 in unit time can be increased, the water flow spraying speed is increased, and the impact force on sludge is increased.

Preferably, the connecting end of the mud conveying pipe 3 and the arc-shaped bent plate 4 is in an outward-expanding horn shape, and the pipe wall is provided with a spiral groove 31, the spiral groove 31 plays a role in guiding mud entering the mud conveying pipe 3, so that the mud is prevented from blocking the through hole.

In the description of this patent, it is to be understood that the terms "upper", "lower", "inner", "outer", and the like, as used herein, refer to an orientation or positional relationship based on that shown in the drawings, which is for convenience in describing the patent and to simplify the description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered limiting of the patent.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. A raking device for a dredger, comprising: a sealing plate is arranged at one end of the mud conveying pipe (3);

the mud conveying pipe comprises an arc-shaped bent plate (4), wherein the arc-shaped bent plate (4) is fixedly arranged at one end, far away from a sealing plate, of the mud conveying pipe (3), the length direction of the arc-shaped bent plate (4) is perpendicular to that of the mud conveying pipe (3), the sealing plates (43) are arranged on two sides of the arc-shaped bent plate (4), a mud suction cavity (42) is formed between the arc-shaped bent plate (4) and the two sealing plates (43), a through hole (41) is formed in the arc-shaped bent plate (4), and the mud conveying pipe (3) is communicated with the mud suction cavity (42) through the through hole (41);

the scraping plate (5) is vertically arranged on one side edge of the arc-shaped bent plate (4) far away from the mud conveying pipe (3), and a plurality of teeth (51) are arranged on the lower side edge of the scraping plate (5);

the cutter-suction mechanism is arranged in the sludge suction cavity (42), and can suck the sludge entering the sludge suction cavity (42) into the sludge conveying pipe (3) after being ground.

2. A drag device for a dredger according to claim 1, wherein the cutter suction mechanism comprises:

the motor (46), the said motor (46) is fixed to the outside of the closing plate (43);

the rotating shaft (44) is rotatably arranged between the two sealing plates (43), the length direction of the rotating shaft (44) is consistent with that of the arc-shaped bent plate (4), a roller (45) is fixedly arranged on the rotating shaft (44), one end of the rotating shaft (44) penetrates through the sealing plates (43), and the end part of the rotating shaft (44) is in transmission connection with an output shaft of a motor (46);

the reamer comprises a first spiral reamer (451) and a second spiral reamer (452), wherein the first spiral reamer (451) and the second spiral reamer (452) are respectively arranged on the wheel surfaces of two sides of a rotary drum (45), the spiral directions of the first spiral reamer (451) and the second spiral reamer (452) are opposite, and a through hole (41) is located between the first spiral reamer (451) and the second spiral reamer (452).

3. The raking and suction device for the dredge boat according to claim 2, characterized in that the joint of the dredge pipe (3) and the arc-shaped bent plate (4) is flared and the pipe wall is provided with a spiral groove (31).

4. A raking and suction device for a dredger according to claim 3, characterized in that the first helical reamer (451) and the second helical reamer (452) are each provided with a number of projections (453).

5. The harrowing and suction device for a dredger according to claim 4, wherein a plurality of water inlet pipes (6) are fixedly arranged on one side of the arc-shaped bent plate (4) close to the dredge pipe (3) in parallel, the length direction of the water inlet pipes (6) is consistent with that of the dredge pipe (3), and one ends of the water inlet pipes (6) far away from the dredge cavity (42) are in an outward-expanding horn shape.