CN220394480U - A clearance device and clearance ship for silt desilting is preceding - Google Patents

Abstract

The application discloses a clearance device and clearance ship for before silt dredging relates to silt clearance equipment technical field, a clearance device for before silt dredging, including mount pad and support, the vertical rotation of one end of support sets up on the mount pad, the support is kept away from the one end swing installation clearance mechanism of mount pad, clearance mechanism is kept away from one side of support is equipped with the steel harrow that is used for the clearance, clearance mechanism is close to one side of support is installed and is used for the drive steel harrow wobbling swing drive assembly, swing drive assembly drive clearance mechanism swing to make steel harrow swing in silt, help the steel harrow to clear up obstacles such as pasture and water, wood piece and stone from silt and handle, improved clearance effect.

Description

A clearance device and clearance ship for silt desilting is preceding

Technical Field

The application relates to the technical field of silt clearance equipment, in particular to a clearance device and clearance ship before silt clearance.

Background

The silt is the sticky earth that the river course formed at slow in-process that flows, and silt texture is softer, and when silt was in the submarine sediment too much, probably leads to the phenomenon of water level too high, needs timely desilting to silt, and silt formula river course often accompanies vegetation and pasture and water large tracts of land growth, simultaneously, and the barrier is more in the mud, including solid-state rubbish such as some stones and wood, directly carries out the desilting and leads to the desilting effect not good or cause desilting equipment to damage easily, so need carry out the desilting to silt before the desilting and handle.

In order to solve the problem that solid garbage cleared from silt, patent publication No. CN116397713A discloses an underwater environment-friendly barrier clearing device, system and method, which comprises a vertical cylindrical cover body, wherein the top end of the cover body is closed, the bottom end of the cover body is open, a grab bucket is arranged on the top wall in the cover body, a space is reserved between the grab bucket and the inner wall of the cover body, the grab head is rotationally connected with the cover body, the grab bucket is a multi-piece grab bucket, through holes penetrating inside and outside are densely distributed on each piece of shell, and a dirt absorbing port penetrating inside and outside is arranged on the side wall of the lower part of the cover body.

With respect to the related art in the above, the inventors consider that there are the following drawbacks: the underwater garbage is grabbed by the multi-petal grab bucket, but the floating garbage such as float waterweed, wood and the like is difficult to grab by the multi-petal grab bucket, and the problem of poor obstacle clearing effect on the floating garbage exists.

Disclosure of Invention

In order to improve the obstacle clearance effect to float rubbish such as pasture and water and wood, this application provides an obstacle clearance device and obstacle clearance ship before silt desilting.

In a first aspect, the present application provides an obstacle-removing device for use before dredging of sludge, which adopts the following technical scheme:

the utility model provides a clear barrier device for silt desilting is preceding, includes mount pad and support, the vertical rotation setting of support is in on the mount pad, the support is kept away from the one end swing installation clearance barrier mechanism of mount pad, clearance barrier mechanism is kept away from one side of support is equipped with the steel harrow that is used for the clearance barrier, clearance barrier mechanism is close to one side installation of support is used for the drive steel harrow wobbling swing drive assembly.

Through adopting above-mentioned technical scheme, rotate the installing support on the mount pad, swing on the support and install clearance mechanism, be equipped with the steel harrow on the clearance mechanism, swing drive assembly drive clearance mechanism swing to make the steel harrow swing in silt, help the steel harrow to clear up obstacles such as pasture and water, wood piece and stone from silt, improved clearance effect.

Optionally, the obstacle clearance mechanism further comprises an obstacle clearance bar set and a telescopic driving assembly for driving the obstacle clearance bar set to extend or shorten, and the steel rake is installed on the obstacle clearance bar set.

Through adopting above-mentioned technical scheme, the mechanism of removing obstacles still includes the pole group of removing obstacles and flexible drive assembly, and the steel harrow is installed on the pole group of removing obstacles, and flexible drive assembly drive pole group of removing obstacles stretches or shortens, makes the steel harrow can clear up the barrier of certain scope, helps promoting the efficiency of removing obstacles.

Optionally, the barrier pole group includes swinging arms and telescopic link, the swinging arms with telescopic link axial sliding connection, the swinging arms swing and set up the support is kept away from the one end of mount pad, the telescopic link is kept away from the detachable fixed connection of one end of swinging arms the steel harrow.

Through adopting above-mentioned technical scheme, the barrier pole group includes swinging arms and telescopic link, swinging arms and telescopic link axial sliding connection, and steel harrow detachable fixed connection is in the one end of telescopic link, and the telescopic link stretches out and draws back on the swinging arms, helps the steel harrow to clear up the barrier in the bigger within range, and steel harrow detachable fixed connection is on the telescopic link, helps convenient change and installs the steel harrow.

Optionally, the obstacle clearance bar group further comprises a shaft force sensor for detecting the axial force born by the steel harrow, one end of the shaft force sensor is connected with the telescopic rod, and the other end of the shaft force sensor is connected with the steel harrow.

Through adopting above-mentioned technical scheme, the barrier pole group still includes the axle force transducer of setting between telescopic link and steel harrow, and when the steel harrow was pulled the barrier in silt, its atress exceeded its atress, and axle force transducer sent out the signal, and the steel harrow stops to harrow and pulls the barrier, helps preventing that the steel harrow from damaging at work.

Optionally, the telescopic driving assembly comprises a telescopic oil cylinder, one end of the telescopic oil cylinder is fixedly arranged on the swinging rod, and the other end of the telescopic oil cylinder is fixed on the telescopic rod.

Through adopting above-mentioned technical scheme, flexible drive assembly includes flexible hydro-cylinder, and flexible hydro-cylinder's both ends respectively with swinging arms and telescopic link fixed connection, the telescopic link stretches out or withdraws from the swinging arms under flexible hydro-cylinder's drive, helps the steel harrow to clear up the silt in the bigger within range, promotes the efficiency of clearance barrier.

Optionally, the steel harrow includes the harrow body, and a plurality of is fixed to be set up according to certain interval the harrow tooth of harrow body one side, the harrow tooth to the harrow body is kept away from one side bending formation storage chamber of telescopic link, a plurality of the harrow tooth is kept away from the one end of harrow body is passed through the fixed plate and is connected, the fixed plate is kept away from one side of storage chamber is equipped with the cutting edge that is used for cutting the barrier.

Through adopting above-mentioned technical scheme, a plurality of rake teeth are fixed on the harrow body at certain distance intervals, help flowing among the rake teeth in the silt, reduce the resistance of silt to steel harrow, the rake teeth is crooked to the rake body one side of keeping away from the telescopic link and is formed the storage chamber, help the steel harrow when removing the obstacle, store the barrier in the storage chamber, the fixed plate is connected the rake teeth, help improving the intensity of rake teeth, prevent that the rake teeth atress warp, improve the reliability of rake teeth, one side that the fixed plate kept away from the storage chamber is equipped with the cutting edge, help cutting debris such as float grass, reduce the winding of debris to the steel harrow, promote the obstacle removal effect of steel harrow.

Optionally, the swing driving assembly comprises a swing driving oil cylinder, one end of a body of the swing driving oil cylinder is hinged to the bracket, and one end of a piston rod of the swing driving oil cylinder is hinged to the swing rod.

Through adopting above-mentioned technical scheme, the one end of swing drive hydro-cylinder body articulates on the support, and the one end of piston rod articulates on the pendulum rod, and swing drive hydro-cylinder drive pendulum rod up-and-down swing, pendulum rod drive telescopic link up-and-down swing to make the steel harrow swing up-and-down, get into in the silt when the steel harrow swings down and carry out harrow and draw the barrier, when the steel harrow upwards swings, the steel harrow is the barrier in the storage chamber and is followed the silt and harrow, has promoted the mechanized operation of clearance barrier.

Optionally, the device further comprises a rotation driving mechanism for driving the bracket to rotate, and the rotation driving mechanism is installed on the installation seat.

Through adopting above-mentioned technical scheme, the obstacle removing device still includes drive support pivoted actuating mechanism, and swing installation obstacle removing mechanism on the support is equipped with the steel harrow on the obstacle removing mechanism to make the steel harrow rotate around the support, help expanding the obstacle removing scope of steel harrow, also be convenient for collect the barrier in the steel harrow.

Optionally, the rotation driving mechanism comprises a mounting frame, a motor reducer and a gear set, wherein the mounting frame is fixedly arranged on the mounting seat, the motor reducer is fixedly arranged on the mounting frame, the gear set comprises a large gear and a small gear, the small gear is fixedly arranged on an output shaft of the motor reducer, the large gear is fixedly arranged on the support, and the large gear is in meshed transmission with the small gear.

Through adopting above-mentioned technical scheme, rotation actuating mechanism includes mounting bracket, motor reducer and gear train, motor reducer installs on the mounting bracket, mounting bracket fixed mounting is on the mount pad, the gear train includes gear wheel and pinion, the output shaft fixed connection of pinion and motor reducer, gear wheel and support fixed connection, gear wheel and pinion meshing transmission to drive the support and rotate, the mount pad is the installation basis of clearance device, can install clearance device on machine equipment such as clearance ship or clearance trailer through the mount pad, help clearance device to use in the clearance operation of different environment.

In a second aspect, the present application provides an wrecker, which adopts the following technical scheme:

the utility model provides a clearance ship, includes a clearance device before being used for silt dredging, clearance device passes through mount pad fixed mounting is in on clearance ship's the deck, install on clearance ship's the deck for clearance device provides the hydraulic pressure station of power, still including setting up the dustbin that is used for storing the barrier at the mount pad opposite side.

Through adopting above-mentioned technical scheme, the clearance ship includes the clearance device, and the clearance device passes through mount pad fixed mounting on the deck of clearance ship, installs the hydraulic pressure station that the clearance device provided power on the deck of clearance ship, still including setting up the dustbin in mount pad one side, provides the swing actuating cylinder and the flexible hydro-cylinder action of pressure oil drive clearance device through the hydraulic pressure station, helps storing and transporting the barrier that the clearance device was collected.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the obstacle removing device drives the obstacle removing mechanism to swing through the swing driving assembly, so that the steel rake swings in the silt, the steel rake is facilitated to clean obstacles such as aquatic weeds, wood blocks and stones from the silt, and the obstacle removing effect is improved.

2. The obstacle clearance mechanism drives the obstacle clearance rod group through the telescopic driving assembly, so that the obstacle clearance rod group is lengthened or shortened, a steel rake can clear obstacles in a certain range, the overall movement of the obstacle clearance device is reduced, and the obstacle clearance efficiency is improved.

3. The obstacle clearance pole group is flexible in the swinging arms through the telescopic link, helps the steel harrow to clear up the barrier in the bigger scope, and steel harrow detachable fixed connection is on the telescopic link, helps convenient change and installation steel harrow.

4. The obstacle clearance pole group detects the atress condition of steel harrow through setting up the axle force transducer between telescopic link and steel harrow, and when the steel harrow atress exceeded its external force that holds, axle force transducer sent out the signal, and the steel harrow stops the harrow and draws the barrier, helps preventing that the steel harrow from damaging at work.

5. The telescopic driving assembly drives the telescopic rod to extend or retract in the swinging rod through the telescopic oil cylinder, so that the steel rake can clean silt in a larger range, and the obstacle clearance efficiency is improved.

6. The steel harrow reduces the resistance of steel harrow through setting up the harrow tooth that the interval was arranged, helps storing the barrier when the obstacle clearance through the storage chamber, passes through the fixed plate through a plurality of harrow tooth to be connected, helps improving the intensity of harrow tooth, prevents that the harrow tooth atress from warping, improves the reliability of harrow tooth, sets up the cutting edge on the fixed plate, helps cutting debris such as grass that floats, reduces the winding of debris to the steel harrow, promotes the obstacle clearance effect of steel harrow.

7. The swing driving assembly drives the swing rod to swing up and down through the swing driving oil cylinder, the swing rod and the telescopic rod drive the steel harrow to swing up and down, so that the steel harrow is beneficial to pressing the sludge downwards to clear the obstacle, the obstacle in the storage cavity of the steel harrow is upwards beneficial to raking out the obstacle from the sludge, and the mechanized operation of clearing the obstacle is promoted.

8. The rotating driving mechanism drives the bracket to rotate through the rotating driving mechanism, so that the steel rake rotates, obstacle clearance of the steel rake in a larger range is facilitated, and the collected obstacles are poured into the dustbin by the steel rake.

9. The obstacle clearance ship clears the obstacle through the obstacle clearance device, provides the swing drive hydro-cylinder and the flexible hydro-cylinder action of pressure oil drive obstacle clearance device through the hydraulic pressure station, collects the barrier through the dustbin, helps the barrier to store and transport, realizes mechanized obstacle clearance operation.

Drawings

Fig. 1 is a schematic structural view of an obstacle-removing device for dredging the silt.

Fig. 2 is a front view of an obstacle-removing device for use before dredging of sludge as disclosed in the present application.

Fig. 3 is an enlarged view of a portion of the I position of fig. 1.

Fig. 4 is a schematic structural view of an wrecker disclosed in the present application.

Reference numerals illustrate:

1. a mounting base; 2. a bracket; 3. an obstacle clearing mechanism; 31. a steel rake; 311. a rake body; 312. rake teeth; 313. a storage chamber; 314. a fixing plate; 3141. a blade; 32. a barrier removal bar set; 321. a swinging rod; 322. a telescopic rod; 323. a shaft force sensor; 324. installing a joint; 33. a telescoping drive assembly; 331. a telescopic oil cylinder; 4. a swing drive assembly; 41. a swing driving oil cylinder; 5. a rotation driving mechanism; 51. a mounting frame; 52. a motor reducer; 53. a gear set; 531. a large gear; 532. a pinion gear; 54. a gear cover; 6. a hydraulic station; 7. a dustbin.

Detailed Description

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

The embodiment of the application discloses an obstacle-removing device before silt dredging.

An obstacle-removing device used before dredging silt. Referring to fig. 1, including mount pad 1 and support 2, support 2 passes through the vertical rotation of bearing and installs on mount pad 1, support 2 is kept away from the one end swing installation clearance barrier mechanism 3 of mount pad 1, one side that clearance barrier mechanism 3 kept away from support 2 is equipped with the steel harrow 31 that is used for the clearance barrier, one side that clearance barrier mechanism 3 is close to support 2 is installed and is used for driving steel harrow 31 wobbling swing drive assembly 4, swing drive assembly 4 drives clearance barrier mechanism 3 and swings, thereby make steel harrow 31 swing in the silt, help steel harrow 31 clear up obstacles such as pasture and water, wood piece and stone from the silt, the effect of clearance barrier has been improved.

Referring to fig. 2, the obstacle removing mechanism 3 further includes an obstacle removing rod set 32, and a telescopic driving assembly 33 for driving the obstacle removing rod set 32 to extend or shorten, wherein the steel rake 31 is mounted on the obstacle removing rod set 32, and the telescopic driving assembly 33 drives the obstacle removing rod set 32 to extend or shorten, so that the steel rake 31 can remove a certain range of obstacles, and the obstacle removing efficiency is improved.

Referring to fig. 2, the barrier removal rod set 32 includes swinging rod 321 and telescopic rod 322, swinging rod 321 and telescopic rod 322 axial sliding connection, telescopic rod 322 suit is in swinging rod 321 and can follow axial sliding in this embodiment, connect through slide bearing between swinging rod 321 and the telescopic rod 322, make telescopic rod 322 can axial sliding in swinging rod 321, in other embodiments of this application, also, telescopic rod 322 sets up outside swinging rod 321, connect through the guide rail pair between them, telescopic rod 322 can relative swinging rod 321 axial sliding all can, swinging rod 321 swings and sets up in support 2 keep away from the one end of mount pad 1, swinging rod 321 passes through joint bearing and installs on support 2, swinging rod 321 can swing from top to bottom, telescopic rod 322 is kept away from the one end detachable fixed connection steel rake 31 of swinging rod 321, connect through installation joint 324 between the telescopic rod 321, telescopic rod 322 is flexible in swinging rod 321, help steel rake 31 can clear up the barrier in the more scope, steel rake 31 is through installation joint 324 fixed connection on helping steel rake 31 to change on the telescopic rod 322, easy to install 31.

Referring to fig. 2, the obstacle clearing bar set 32 further includes a shaft force sensor 323 for detecting that the steel rake 31 bears an axial force, one end of the shaft force sensor 323 is connected with the telescopic rod 322, the other end is connected with the steel rake 31, the shaft force sensor 323 is connected to the mounting seat 1 of the obstacle clearing device through a wire, a display screen or an alarm is arranged on the mounting seat 1, when the steel rake 31 pulls an obstacle in sludge, the shaft force sensor 323 sends out a signal when the force of the steel rake 31 exceeds the force of the obstacle, and an operator or an operator automatically stops the steel rake 31 from pulling the obstacle, thereby helping to prevent the steel rake 31 from being damaged in operation.

Referring to fig. 2, the telescopic driving assembly 33 includes a telescopic cylinder 331, one end of the telescopic cylinder 331 is fixedly mounted on the swing rod 321, the other end of the telescopic cylinder 331 is fixed on the telescopic rod 322, and the telescopic rod 322 extends out of or retracts from the swing rod 321 under the driving of the telescopic cylinder 331, so that the steel rake 31 is facilitated to clean sludge in a larger range, and the obstacle clearance efficiency is improved.

Referring to fig. 3, the steel rake 31 includes a rake body 311, a plurality of fixed rake teeth 312 that set up in rake body 311 one side according to certain interval, rake teeth 312 are crooked to rake body 311 one side of keeping away from telescopic link 322 and form storage chamber 313, one end that rake body 311 was kept away from to a plurality of rake teeth 312 is passed through fixed plate 314 and is connected, one side that fixed plate 314 kept away from storage chamber 313 is equipped with the cutting edge 3141 that is used for cutting the barrier, storage chamber 313 helps steel rake 31 when the clearance is in, store the barrier in storage chamber 313, fixed plate 314 connects rake teeth 312, help improving the intensity of rake teeth 312, prevent rake teeth 312 atress and warp, improve the reliability of rake teeth 312, one side that fixed plate 314 kept away from storage chamber 313 is equipped with cutting edge 3141, help cutting debris such as float grass, reduce the winding of debris to steel rake 31, promote the clearance effect of steel rake 31.

Referring to fig. 2, the swing driving assembly 4 includes a swing driving cylinder 41, one end of a cylinder body of the swing driving cylinder 41 is hinged on the bracket 2, one end of a piston rod of the swing driving cylinder 41 is hinged with a swing rod 321, the swing driving cylinder 41 drives the swing rod 321 to swing up and down, the swing rod 321 drives a telescopic rod 322 to swing up and down, so that the steel rake 31 swings up and down, when the steel rake 31 swings down, the steel rake 31 enters sludge to rake and pulls obstacles, when the steel rake 31 swings up, the steel rake 31 rakes the obstacles in the storage cavity 313 from the sludge, and the mechanical operation of clearing obstacles is promoted.

Referring to fig. 1, the device further comprises a rotation driving mechanism 5 for driving the bracket 2 to rotate, wherein the rotation driving mechanism 5 is installed on the installation seat 1, and the rotation driving mechanism 5 drives the bracket 2 to rotate, so that the steel rake 31 rotates around the bracket 2, thereby being beneficial to expanding the obstacle clearance range of the steel rake 31 and being convenient for collecting obstacles in the steel rake 31.

Referring to fig. 1, the rotation driving mechanism 5 includes a mounting frame 51, a motor reducer 52 and a gear set 53, the mounting frame 51 is fixedly mounted on a mounting seat 1, the motor reducer 52 is fixedly mounted on the mounting frame 51, the gear set 53 includes a large gear 531 and a small gear 532, the small gear 532 is fixedly mounted on an output shaft of the motor reducer 52, the large gear 531 is fixedly mounted on a support 2, the large gear 531 and the small gear 532 are in meshed transmission, the structure is simple, the transmission is reliable, a gear cover 54 is arranged outside the gear set 53 for safety protection, the mounting frame 51 is mounted on the mounting seat 1, the mounting seat 1 is a mounting foundation of an obstacle-removing device, the obstacle-removing device can be mounted on machine equipment such as an obstacle-removing ship or an obstacle-removing trailer through the mounting seat 1, and the obstacle-removing device can be used in obstacle-removing operations in different environments.

The embodiment of the application also discloses an obstacle clearance ship.

The utility model provides an obstacle clearance ship, refer to fig. 4, including an obstacle clearance device for silt dredging is preceding, obstacle clearance device passes through mount pad 1 fixed mounting on the deck of obstacle clearance ship, install the hydraulic pressure station 6 that provides power for the obstacle clearance device on the deck of obstacle clearance ship, still including setting up the dustbin 7 that is used for storing the barrier at mount pad 1 opposite side, the inside power generation system that still is equipped with of obstacle clearance ship for provide electric power for hydraulic pressure station 6 and rotation actuating mechanism 5, provide the swing actuating cylinder 41 and the flexible hydro-cylinder 331 action of pressure oil drive obstacle clearance device through hydraulic pressure station 6, help storing and transporting the barrier that the obstacle clearance device was collected.

The use method of the wrecker comprises the following steps: the power generation system and the hydraulic station 6 are started successively, the wrecker is started to a wrecker position, the telescopic oil cylinder 331 acts, the driving telescopic rod 322 stretches out of the swinging rod 321, the swinging driving oil cylinder 41 acts to stretch out the piston rod, the driving steel rake 31 moves downwards to enable the steel rake 31 to be pressed into sludge, the telescopic oil cylinder 331 acts, the driving telescopic rod 322 retracts into the swinging rod 321, an obstacle enters the storage cavity 313, the swinging driving oil cylinder 41 acts to retract the piston rod, the steel rake 31 is lifted from the sludge, the motor reducer 52 is started, the pinion 532 drives the large gear 531 to rotate, the bracket 2 is driven to rotate, the steel rake 31 is rotated to be positioned above the dustbin 7, the swinging driving oil cylinder 41 acts to continuously retract the piston rod, the steel rake 31 tilts upwards, and the obstacle in the steel rake 31 falls into the dustbin 7 from the storage cavity 313.

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

Claims (10)

1. The utility model provides a clearance device for before silt desilting, includes mount pad (1) and support (2), vertical rotation of support (2) sets up on mount pad (1), its characterized in that: the device is characterized in that the support (2) is far away from one end of the mounting seat (1) and is provided with an obstacle clearance mechanism (3) in a swinging mode, one side, away from the support (2), of the obstacle clearance mechanism (3) is provided with a steel rake (31) for clearance, and one side, close to the support (2), of the obstacle clearance mechanism (3) is provided with a swinging driving assembly (4) for driving the steel rake (31) to swing.

2. The obstacle clearing device for use before dredging of silt according to claim 1, wherein: the obstacle clearance mechanism (3) further comprises an obstacle clearance bar set (32) and a telescopic driving assembly (33) for driving the obstacle clearance bar set (32) to extend or retract, and the steel rake (31) is installed on the obstacle clearance bar set (32).

3. An obstacle-removing device for use before dredging of silt according to claim 2, wherein: the obstacle clearance rod group (32) comprises a swinging rod (321) and a telescopic rod (322), the swinging rod (321) is axially and slidably connected with the telescopic rod (322), the swinging rod (321) swings and is arranged at one end, far away from the mounting seat (1), of the support (2), and the telescopic rod (322) is far away from one end, detachable and fixedly connected with the steel rake (31), of the swinging rod (321).

4. A barrier removal apparatus for use in pre-dredging a silt according to claim 3, wherein: the obstacle clearance rod group (32) further comprises a shaft force sensor (323) for detecting the axial force borne by the steel rake (31), one end of the shaft force sensor (323) is connected with the telescopic rod (322), and the other end of the shaft force sensor is connected with the steel rake (31).

5. A barrier removal apparatus for use in pre-dredging a silt according to claim 3, wherein: the telescopic driving assembly (33) comprises a telescopic oil cylinder (331), one end of the telescopic oil cylinder (331) is fixedly arranged on the swinging rod (321), and the other end of the telescopic oil cylinder is fixed on the telescopic rod (322).

6. A barrier removal apparatus for use in pre-dredging a silt according to claim 3, wherein: the steel rake (31) comprises a rake body (311), a plurality of rake teeth (312) which are fixedly arranged on one side of the rake body (311) at a certain interval, the rake teeth (312) are bent towards one side of the rake body (311) away from the telescopic rod (322) to form a storage cavity (313), one ends of the rake teeth (312) away from the rake body (311) are connected through a fixing plate (314), and one side of the fixing plate (314) away from the storage cavity (313) is provided with a cutting edge (3141) for cutting obstacles.

7. A barrier removal apparatus for use in pre-dredging a silt according to claim 3, wherein: the swing driving assembly (4) comprises a swing driving oil cylinder (41), one end of a cylinder body of the swing driving oil cylinder (41) is hinged to the support (2), and one end of a piston rod of the swing driving oil cylinder (41) is hinged to the swing rod (321).

8. The obstacle clearing device for use before dredging of silt according to claim 1, wherein: the device also comprises a rotation driving mechanism (5) for driving the bracket (2) to rotate, and the rotation driving mechanism (5) is arranged on the mounting seat (1).

9. The device for removing obstacles before dredging sludge of claim 8, wherein: the rotation driving mechanism (5) comprises a mounting frame (51), a motor reducer (52) and a gear set (53), wherein the mounting frame (51) is fixedly installed on the mounting seat (1), the motor reducer (52) is fixedly installed on the mounting frame (51), the gear set (53) comprises a large gear (531) and a small gear (532), the small gear (532) is fixedly installed on an output shaft of the motor reducer (52), the large gear (531) is fixedly installed on the support (2), and the large gear (531) is in meshed transmission with the small gear (532).

10. An obstacle clearing ship, which is characterized in that: an obstacle clearance device for use before dredging of sludge, comprising a hydraulic station (6) according to any of claims 1-9, said obstacle clearance device being fixedly mounted on the deck of said obstacle clearance vessel by means of said mounting (1), said deck of said obstacle clearance vessel being mounted with said hydraulic station for powering said obstacle clearance device, and further comprising a dustbin (7) for storing obstacles.