A precise dredging control system for grab dredger

Abstract

The present application discloses a control system for precise excavation of a grab dredger, and relates to the technical field of dredgers. The present application includes a dredger body, a dredging well is provided at one end of the dredger body, a lifting winch is fixedly connected to one end of the dredger body, a locking wire rope group is provided at the output end of the lifting winch, and a connecting frame is fixedly connected to one end of the locking wire rope group. The present application drives one end of the cone head to reciprocate along the length direction of the reciprocating slideway through a crushing mechanism, and enables the cone head to form a reciprocating crushing insertion on the surface of the underwater soil, so that the bottom of the bucket can be more deeply embedded in the soil, and then the two buckets of the driving assembly are started to shovel the soil toward the middle along the length direction of the driving slideway, and then the hydraulic rod is started to drive the two buckets to deflect and move toward each other around the hinged shaft of the driving slider, and the two buckets are closed to excavate the soil shoveled toward the middle.

Description

Technical Field

[0001] The present application relates to the technical field of dredgers, and in particular to a precision dredging control system for a grab dredger. Background Art

[0002] With the development of water transport engineering, the precision requirements for underwater excavation in river dredging, port construction and marine engineering are increasing day by day. As an important equipment for underwater excavation, the operating efficiency and excavation quality of grab dredgers directly affect the progress and cost of engineering projects. Especially in occasions that require fine excavation, such as channel maintenance, bottom bed preparation before laying underwater pipelines, etc., higher requirements are placed on the operating accuracy of dredgers. However, the traditional dredger operation method mainly relies on manual experience and manual control, which is difficult to meet the dual needs of modern engineering for accuracy and efficiency.

[0003] At present, the operation process of grab dredger is roughly divided into three main stages: grab lowering, grab closing and grab lifting. In the prior art, the grab closing mainly relies on manual control. When the grab is lowered to a predetermined depth by the lifting winch, the operator stops the lifting winch and turns to operate the opening and closing winch to retract and release the wire rope, thereby realizing the grab closing function.

[0004] Traditional grab dredgers realize the grab bucket closing function by operating the opening and closing winch to retract and release the wire rope. During the bucket closing process, due to the relative action between the bucket and the ground, the bucket teeth are difficult to embed into the soil, thereby reducing the bucket's excavation efficiency and affecting the progress and overall quality of subsequent projects. Summary of the invention

[0005] The purpose of the present application is to solve the problem that during the closing process of the bucket of the existing grab dredger, due to the relative interaction between the bucket and the ground, the bucket teeth are difficult to embed into the soil, thereby reducing the digging efficiency of the bucket and affecting the progress and overall quality of subsequent projects. The present application provides a precision digging control system for a grab dredger.

[0006] In order to achieve the above-mentioned purpose, this application specifically adopts the following technical solutions: A grab dredger precision excavation control system comprises a dredger body, a dredging well is provided at one end of the dredger body, a lifting winch is fixedly connected to one end of the dredger body, a locking wire rope group is arranged at the output end of the lifting winch, one end of the locking wire rope group is fixedly connected to a connecting frame, a driving slide groove is symmetrically provided at the bottom of the connecting frame, a driving slider is slidably connected inside the driving slide groove, a bucket is hingedly connected to the bottom of the driving slider, a hydraulic rod is hingedly connected to one end of the driving slider, the output end of the hydraulic rod is hinged to the other end of the bucket, a plurality of reciprocating slide grooves are evenly provided at the bottom of the bucket, a cone head is slidably connected inside the reciprocating slide groove, a driving assembly for driving two buckets to move along the length of the driving slide groove is installed at one end of the connecting frame, and a crushing mechanism for driving the cone head to reciprocate along the length direction of the reciprocating slide groove is installed inside the bucket.

[0007] By adopting the above technical scheme, by setting up the coordinated use of the crushing mechanism and the driving component, it is convenient to drive the lifting winch to cooperate with the locking wire rope group to unwind the bucket to the area to be excavated, and then drive one end of the cone head to vibrate reciprocatingly along the length direction of the reciprocating slide through the crushing mechanism, and make the cone head reciprocate and crush the surface of the underwater soil to insert, so that the bottom of the bucket can be embedded deeper into the soil, and then by starting the driving component, the two buckets shovel the soil toward the middle along the length direction of the driving slide, and then start the hydraulic rod to drive the two buckets to deflect and move towards each other around the hinge axis of the driving slider, and make the two buckets close and excavate the soil shoveled to the middle, so as to facilitate driving the bucket to be embedded in the soil, effectively improve the excavation efficiency of the bucket, and speed up the progress and overall quality of subsequent projects.

[0008] Furthermore, the driving assembly includes a driving rod rotatably connected to one end of the connecting frame, one end of the driving rod is symmetrically provided with threads with opposite rotation directions, and one end of the driving rod extends to the interior of the connecting frame, one end of the driving slider is threadedly connected to the driving rod, the middle section of the driving rod is fixedly connected to bevel gear 1, the interior of the connecting frame is fixedly connected to a driving motor, and the output end of the driving motor is fixedly connected to bevel gear 2 meshing with bevel gear 1.

[0009] By adopting the above technical solution and setting the driving rod and the driving slider for coordinated use, starting the driving motor can drive bevel gear two to engage with bevel gear one and drive the driving rod to rotate. At the same time, the driving rod is driven to form a threaded connection with the two driving sliders, thereby driving the two driving sliders to move along the length direction of the driving slide groove, thereby effectively improving the practicability of the device.

[0010] Furthermore, the crushing mechanism includes an installation bin opened inside the bucket, one end of the cone head is fixedly connected to a transmission rod, one end of the transmission rod passes through the bucket and extends to the inside of the driving slide, and one end of the bucket is fixedly connected to a compression rod, one end of a plurality of compression rods is fixedly connected to a triangular inclined table, a reciprocating spring is provided on the outer periphery of the compression rod, and the reciprocating spring is installed between the driving slide and the triangular inclined table, a crushing slide is opened on the inner side of the driving slide, a crushing slider adapted to the triangular inclined table is slidably connected inside the crushing slide, and an ejection assembly for driving the crushing slider to move along the length direction of the crushing slide is installed inside the driving slide.

[0011] By adopting the above technical scheme, by setting the ejection assembly for coordinated use with the crushing slider, the triangular inclined table and the reciprocating spring, starting the ejection assembly can drive the crushing slider to move along the length direction of the crushing chute, and push the triangular inclined table to squeeze the reciprocating spring, while pushing the cone head to move downward along the length direction of the reciprocating chute, and then utilizing the rebound characteristics of the reciprocating spring to push the triangular inclined table to drive the cone head to move upward along the length direction of the reciprocating chute, so that the cone head forms a reciprocating vibration along the length direction of the reciprocating chute, so that the cone head can crush the soil layer, allowing the bucket to embed into the soil layer, effectively improving the excavation efficiency of the device.

[0012] Furthermore, the ejection assembly includes a resistance rod fixedly connected to one end of the crushing slider, a crushing motor is fixedly connected to the inner side of the driving slide groove, a crushing wheel is eccentrically fixedly connected to the output end of the crushing motor, and one end of the crushing wheel is in conflict with the resistance rod.

[0013] By adopting the above technical solution and setting the coordinated use of the crushing wheel and the resistance rod, starting the crushing motor can drive the crushing wheel to rotate eccentrically, and drive the crushing wheel to form a resistance with the resistance rod, thereby pushing the resistance rod to drive the crushing slider to move along the length direction of the crushing chute, thereby effectively improving the practicability of the device.

[0014] Furthermore, one end of the crushing slider is rotatably connected to a resistance roller, and the resistance roller forms a rolling resistance with one end of the triangular inclined platform.

[0015] By adopting the above technical solution, by setting the crushing slider and the contact roller for use together, the crushing slider forms a rolling contact with the triangular inclined table through the contact roller, which effectively reduces the friction between the crushing slider and the triangular inclined table, improves the smoothness of the device, and extends the service life of the device.

[0016] Furthermore, a plurality of mud discharge holes are evenly arranged at the bottom of the reciprocating slide trough.

[0017] By adopting the above technical solution and setting the mud discharge holes, it is convenient to guide the mud inside the reciprocating slide to be discharged through the mud discharge holes, thereby reducing the jamming caused by mud accumulation inside the reciprocating slide and improving the practicality of the device.

[0018] Furthermore, a drainage port is provided at one end of the bucket, a cover plate is hinged inside the drainage port, and an abutment plate adapted to the cover plate is fixedly connected to one end of the interior of the drainage port.

[0019] By adopting the above technical scheme, by setting the drainage port and the coordinated use of the cover plate and the resistance plate, it is convenient to use the water flow to push open the cover plate when driving the bucket down, thereby reducing the resistance of the water flow to the bucket. Then, when driving the bucket up, the water flow is used to push the cover plate and the resistance plate to form a resistance, thereby reducing the water flow passing through the drainage port and scouring the soil inside the bucket, thereby effectively improving the practicality of the device.

[0020] Furthermore, the surfaces of the bucket and the cone head are coated with organic silicon waterproof coating.

[0021] By adopting the above technical solution and providing an organic silicon waterproof coating, the corrosion resistance of the device is effectively improved and the service life of the device is extended.

[0022] In summary, the present application includes at least one of the following beneficial effects: 1. By setting up the coordinated use of the crushing mechanism and the driving component, it is convenient to drive the lifting winch to cooperate with the locking wire rope group to unwind the bucket to the area to be excavated, and then drive one end of the cone head to vibrate reciprocatingly along the length direction of the reciprocating slide through the crushing mechanism, and make the cone head reciprocate and crush the surface of the underwater soil, so that the bottom of the bucket can be embedded deeper into the soil, and then by starting the driving component, the two buckets shovel the soil toward the middle along the length direction of the driving slide, and then start the hydraulic rod to drive the two buckets to deflect and move closer to each other around the hinge axis of the driving slider, and make the two buckets close and excavate the soil shoveled to the middle, so as to facilitate the driving of the bucket to be embedded in the soil, effectively improve the excavation efficiency of the bucket, and speed up the progress and overall quality of subsequent projects.

[0023] 2. By setting the ejection assembly in coordination with the crushing slider, the triangular inclined table and the reciprocating spring, starting the ejection assembly can drive the crushing slider to move along the length direction of the crushing chute, and push the triangular inclined table to squeeze the reciprocating spring, while pushing the cone head to move downward along the length direction of the reciprocating chute, and then utilizing the rebound characteristics of the reciprocating spring to push the triangular inclined table to drive the cone head to move upward along the length direction of the reciprocating chute, so that the cone head forms a reciprocating vibration along the length direction of the reciprocating chute, so that the cone head can crush the soil layer, allowing the bucket to embed into the soil layer, effectively improving the excavation efficiency of the device.

[0024] 3. By setting the mud discharge hole, it is convenient to guide the mud inside the reciprocating chute to be discharged through the mud discharge hole, reducing the jamming caused by mud accumulation inside the reciprocating chute and improving the practicality of the device.

[0025] 4. By setting the drainage port in coordination with the cover plate and the resistance plate, it is convenient to use the water flow to push open the cover plate when driving the bucket down, thereby reducing the resistance of the water flow to the bucket. Then, when driving the bucket up, the water flow is used to push the cover plate and the resistance plate to form a resistance, thereby reducing the water flow passing through the drainage port and scouring the soil inside the bucket, which effectively improves the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the three-dimensional structure of the device body in this application.

[0027] Figure 2 It is a schematic diagram of the connection relationship between the connecting frame and the bucket in this application.

[0028] Figure 3 It is an exploded view of the internal structure of the bucket in this application.

[0029] Figure 4 It is a schematic diagram of the three-dimensional structure of the ejection component in this application.

[0030] Figure 5 It is a schematic diagram of the internal structure of the drain outlet in this application.

[0031] Description of reference numerals: 1. Dredging vessel body; 2. Dredging well; 3. Lifting winch; 4. Locking wire rope group; 5. Connecting frame; 6. Driving slide; 7. Driving slider; 8. Bucket; 9. Hydraulic rod; 10. Reciprocating slide; 11. Cone head; 12. Driving rod; 13. Bevel gear one; 14. Driving motor; 15. Bevel gear two; 16. Mounting bin; 17. Transmission rod; 18. Compression rod; 19. Triangular ramp; 20. Reciprocating spring; 21. Crushing slide; 22. Crushing slider; 23. Resistance rod; 24. Crushing motor; 25. Crushing wheel; 28. Resistance roller; 29. ​​Mud discharge hole; 30. Drainage outlet; 31. Cover plate; 32. Resistance plate. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1 —5 Provide further details of this application.

[0033] The embodiment of the present application discloses a precision dredging control system for a grab dredger.

[0034] Reference Figure 1 - Figure 4A grab dredger precision excavation control system comprises a dredger body 1, a dredging well 2 is provided at one end of the dredger body 1, a lifting winch 3 is fixedly connected to one end of the dredger body 1, a locking wire rope group 4 is arranged at the output end of the lifting winch 3, a connecting frame 5 is fixedly connected to one end of the locking wire rope group 4, a driving slide 6 is symmetrically provided at the bottom of the connecting frame 5, a driving slider 7 is slidably connected inside the driving slide 6, a bucket 8 is hinged at the bottom of the driving slider 7, a hydraulic rod 9 is hinged at one end of the driving slider 7, the output end of the hydraulic rod 9 is hinged to the other end of the bucket 8, a plurality of reciprocating slides 10 are evenly provided at the bottom of the bucket 8, a cone head 11 is slidably connected inside the reciprocating slide 10, a driving assembly for driving two buckets 8 to move along the length of the driving slide 6 is installed at one end of the connecting frame 5, and a crushing mechanism for driving the cone head 11 to reciprocate along the length direction of the reciprocating slide 10 is installed inside the bucket 8; The driving assembly includes a driving rod 12 rotatably connected to one end of the connecting frame 5, one end of the driving rod 12 is symmetrically provided with threads of opposite rotation directions, and one end of the driving rod 12 extends to the inside of the connecting frame 5, one end of the driving slider 7 is threadedly connected to the driving rod 12, the middle section of the driving rod 12 is fixedly connected to a bevel gear 13, the inside of the connecting frame 5 is fixedly connected to a driving motor 14, and the output end of the driving motor 14 is fixedly connected to a bevel gear 2 15 meshing with the bevel gear 13; Moreover, the crushing mechanism includes an installation bin 16 opened inside the bucket 8, one end of the cone head 11 is fixedly connected to a transmission rod 17, one end of the transmission rod 17 passes through the bucket 8 and extends to the inside of the driving chute 6, and one end of the bucket 8 is fixedly connected to a compression rod 18, one end of a plurality of compression rods 18 is fixedly connected to a triangular ramp 19, a reciprocating spring 20 is sleeved on the periphery of the compression rod 18, and the reciprocating spring 20 is installed between the driving chute 6 and the triangular ramp 19, a crushing chute 21 is opened on the inner side of the driving chute 6, a crushing slider 22 adapted to the triangular ramp 19 is slidably connected inside the crushing chute 21, and an ejection assembly for driving the crushing slider 22 to move along the length direction of the crushing chute 21 is installed inside the driving chute 6; Moreover, the ejection assembly includes a resistance rod 23 fixedly connected to one end of the crushing slider 22, a crushing motor 24 is fixedly connected to the inner side of the driving chute 6, a crushing wheel 25 is eccentrically fixedly connected to the output end of the crushing motor 24, and one end of the crushing wheel 25 is in conflict with the resistance rod 23; Moreover, one end of the crushing slider 22 is rotatably connected to a contact roller 28 , and the contact roller 28 forms a rolling contact with one end of the triangular inclined platform 19 .

[0035] When in use, firstly, the hydraulic rod 9 is started to drive the bucket 8 to deflect around the hinge axis with the driving slider 7, and at the same time, the bucket 8 drives the cone head 11 to be vertical with the hull, and then the driving motor 14 is started to drive the bevel gear 2 15 to mesh with the bevel gear 1 13, and the bevel gear 2 15 drives the driving rod 12 to rotate, so that the driving rod 12 and the two driving sliders 7 form a threaded connection, and at the same time, the two driving sliders 7 are pushed to drive the bucket 8 to move away from each other along the length direction of the driving slide 6, and then the lifting winch 3 is started to unwind the locking wire rope group 4, so that the locking wire rope group 4 drives the connecting frame 5 to drive the bucket 8 to pass through the dredging well 2 under the action of gravity, and the bucket 8 is inserted into the underwater area to be excavated; Then, the crushing motor 24 is started to drive the crushing wheel 25 to rotate eccentrically, and the crushing wheel 25 is driven to form a conflict with the conflict rod 23, and the conflict rod 23 is pushed to drive the crushing slider 22 to move along the length direction of the crushing chute 21, so that the crushing slider 22 drives the conflict roller 28 to form a rolling conflict with one end of the triangular inclined table 19, and pushes the triangular inclined table 19 to drive one end of the compression rod 18 to push the transmission rod 17 through the dredger body 1 to extend to the inside of the reciprocating chute 10, and at the same time, the triangular inclined table 19 squeezes the reciprocating spring 20 to produce a contraction deformation, and at this time, the transmission rod 17 pushes the cone head 11 to be ejected downward along the length direction of the reciprocating chute 10; Then, with the eccentric rotation of the crushing wheel 25, one end of the crushing wheel 25 releases the resistance force applied to the resistance rod 23, and the reciprocating spring 20 is deformed to rebound, so that the reciprocating spring 20 pushes out the triangular inclined platform 19 along the length direction of the transmission rod 17, and the triangular inclined platform 19 forms a rolling resistance with the resistance roller 28, and pushes the crushing slider 22 to drive the resistance rod 23 to reset along the length direction of the crushing chute 21, and at the same time, the crushing slider 22 drives one end of the resistance rod 23 to fit with the crushing wheel 25, at this time, the transmission rod 17 drives the cone head 11 to move toward the inside of the reciprocating chute 10 along the length direction of the compression rod 18, so that one end of the cone head 11 reciprocates along the length direction of the reciprocating chute 10, and then the cone head 11 forms a reciprocating crushing insertion on the surface of the bottom soil, so that the bottom of the bucket 8 can be more deeply embedded in the soil; Then, the driving motor 14 is started in reverse to drive the bevel gear 2 15 to mesh with the bevel gear 1 13, and the driving rod 12 is driven to form a threaded connection with the two driving slide blocks 7, thereby driving the two driving slide blocks 7 to drive the two buckets 8 to move toward each other along the length direction of the driving chute 6, and the two buckets 8 shovel the soil toward the middle along the length direction of the driving chute 6, and then the hydraulic rod 9 is started to drive the two buckets 8 to deflect and move toward each other around the hinge axis with the driving slide block 7, and the two buckets 8 close and excavate the soil shoveled toward the middle; Finally, the lifting winch 3 is started in reverse to reel in the locking wire rope group 4, and the locking wire rope group 4 drives the bucket 8 to collect the soil, so as to facilitate driving the bucket 8 to embed into the soil, effectively improving the excavation efficiency of the bucket 8 and accelerating the progress and overall quality of subsequent projects.

[0036] Reference Figure 1 and Figure 2 A plurality of mud discharge holes 29 are evenly arranged at the bottom of the reciprocating slide 10 .

[0037] When in use, when the cone head 11 is driven to move back and forth along the length direction of the reciprocating slide 10, the cone head 11 carries the soil into the reciprocating slide 10. Then, as the cone head 11 reciprocates, the cone head 11 pushes the soil inside the reciprocating slide 10 to be discharged through the mud discharge hole 29, thereby effectively reducing the soil accumulation problem inside the reciprocating slide 10 and improving the practicability of the device.

[0038] Reference Figure 1 and Figure 2 , Figure 5 A drainage port 30 is provided at one end of the bucket 8 , a cover plate 31 is hingedly connected to the interior of the drainage port 30 , and a resistance plate 32 adapted to the cover plate 31 is fixedly connected to one end of the interior of the drainage port 30 .

[0039] When in use, when the lifting winch 3 is started to unwind the wire rope group 4 to drive the bucket 8 to go deeper into the water, the water flows into the interior of the bucket 8 and pushes the cover plate 31 to rotate around the hinge axis, and at the same time, the cover plate 31 releases the cover of the drain port 30, so that the water flows through the drain port 30 to be discharged, thereby reducing the water flow resistance when the bucket 8 descends; Then, when the lifting winch 3 is started in reverse to reel in the wire rope group 4 to pull the bucket 8 out of the water, the bucket 8 will come into contact with the water flow when rising, and the water flow will push the cover plate 31 to rotate around the hinge axis and come into contact with the contact plate 32, so that the cover plate 31 blocks the drain outlet 30, thereby effectively reducing the water flow passing through the drain outlet 30 and scouring the soil inside the bucket 8, thereby effectively improving the practicability of the device.

[0040] Reference Figure 1 and Figure 2 The surfaces of the bucket 8 and the cone head 11 are coated with organic silicon waterproof coating.

[0041] When in use, a silicone waterproof coating is coated on the surface of the bucket 8 and the cone head 11 to form a waterproof coating on the surface of the bucket 8 and the cone head 11, thereby effectively reducing the degree of rust on the surface of the bucket 8 and the cone head 11 and extending the service life of the bucket 8 and the cone head 11.

[0042] The implementation principle of the control system of a grab dredger in this embodiment is as follows: first, the hydraulic rod 9 is started to drive the bucket 8 to deflect around the hinge axis with the driving slider 7, and at the same time, the bucket 8 drives the cone head 11 to be vertical with the hull, and then the driving motor 14 is started to drive the bevel gear 2 15 to mesh with the bevel gear 1 13, and the bevel gear 2 15 drives the driving rod 12 to rotate, so that the driving rod 12 is threadedly connected with the two driving sliders 7, and at the same time, the two driving sliders 7 are pushed to drive the bucket 8 along the driving slider 7. The movable slide 6 moves away from each other in the length direction, and then the lifting winch 3 is started to unwind the locking wire rope group 4, so that the locking wire rope group 4 drives the connecting frame 5 to drive the bucket 8 to pass through the dredging well 2 under the action of gravity, and the bucket 8 is inserted into the underwater area to be excavated. As the bucket 8 goes deeper into the water, the water flow pushes the cover plate 31 to rotate around the hinge axis, and at the same time, the cover plate 31 releases the shielding of the drain port 30, so that the water flow passes through the drain port 30 and is discharged, thereby reducing the water flow resistance when the bucket 8 descends; Then, the crushing motor 24 is started to drive the crushing wheel 25 to rotate eccentrically, and the crushing wheel 25 is driven to form a conflict with the conflict rod 23, and the conflict rod 23 is pushed to drive the crushing slider 22 to move along the length direction of the crushing chute 21, so that the crushing slider 22 drives the conflict roller 28 to form a rolling conflict with one end of the triangular inclined table 19, and pushes the triangular inclined table 19 to drive one end of the compression rod 18 to push the transmission rod 17 through the dredger body 1 to extend to the inside of the reciprocating chute 10, and at the same time, the triangular inclined table 19 squeezes the reciprocating spring 20 to produce a contraction deformation, and at this time, the transmission rod 17 pushes the cone head 11 to be ejected downward along the length direction of the reciprocating chute 10; Then, as the crushing wheel 25 rotates eccentrically, one end of the crushing wheel 25 releases the resistance force applied to the resistance rod 23, and the reciprocating spring 20 is deformed to rebound, so that the reciprocating spring 20 pushes out the triangular inclined platform 19 along the length direction of the transmission rod 17, and the triangular inclined platform 19 forms a rolling resistance with the resistance roller 28, and pushes the crushing slider 22 to drive the resistance rod 23 to reset along the length direction of the crushing chute 21, and at the same time, the crushing slider 22 drives one end of the resistance rod 23 to the crushing wheel 25 fits, at this time, the transmission rod 17 drives the cone head 11 to move along the length direction of the compression rod 18 toward the inside of the reciprocating slide 10, and reciprocates, so that one end of the cone head 11 reciprocates along the length direction of the reciprocating slide 10, and then the cone head 11 reciprocates and breaks the surface of the bottom soil, so that the bottom of the bucket 8 can be more deeply embedded in the soil. At the same time, with the reciprocating movement of the cone head 11, the cone head 11 pushes the soil inside the reciprocating slide 10 to be discharged through the mud discharge hole 29; Then, the driving motor 14 is started in reverse to drive the bevel gear 2 15 to mesh with the bevel gear 1 13, and the driving rod 12 is driven to form a threaded connection with the two driving slide blocks 7, thereby driving the two driving slide blocks 7 to drive the two buckets 8 to move toward each other along the length direction of the driving chute 6, and the two buckets 8 shovel the soil toward the middle along the length direction of the driving chute 6, and then the hydraulic rod 9 is started to drive the two buckets 8 to deflect and move toward each other around the hinge axis with the driving slide block 7, and the two buckets 8 close and excavate the soil shoveled toward the middle; Finally, the lifting winch 3 is started in reverse to reel in the locking wire rope group 4, and the locking wire rope group 4 drives the bucket 8 to collect the soil. At the same time, the bucket 8 is in conflict with the water flow when rising, and the water flow pushes the cover plate 31 to rotate around the hinge axis and forms a conflict with the contact plate 32, so that the cover plate 31 blocks the drain outlet 30, thereby effectively reducing the water flow passing through the drain outlet 30 and scouring the soil inside the bucket 8.

Claims

1. A grab dredger precision dredging control system, comprising a dredger body (1), characterized in that: A dredging well (2) is provided at one end of the dredging vessel body (1), a lifting winch (3) is fixedly connected to one end of the dredging vessel body (1), a locking wire rope group (4) is provided at the output end of the lifting winch (3), one end of the locking wire rope group (4) is fixedly connected to a connecting frame (5), a driving slide groove (6) is symmetrically provided at the bottom of the connecting frame (5), a driving slide block (7) is slidably connected inside the driving slide groove (6), a bucket (8) is hingedly connected to the bottom of the driving slide block (7), and the driving slide block (7) is A hydraulic rod (9) is hingedly connected to one end of the connecting frame (5); the output end of the hydraulic rod (9) is hingedly connected to the other end of the bucket (8); a plurality of reciprocating slide grooves (10) are evenly arranged at the bottom of the bucket (8); a cone head (11) is slidably connected inside the reciprocating slide groove (10); a driving assembly for driving the two buckets (8) to move along the length of the driving slide groove (6) is installed at one end of the connecting frame (5); and a crushing mechanism for driving the cone head (11) to reciprocate along the length direction of the reciprocating slide groove (10) is installed inside the bucket (8).

2. A grab dredger precision dredging control system according to claim 1, characterized in that: The driving assembly comprises a driving rod (12) rotatably connected to one end of a connecting frame (5), one end of the driving rod (12) is symmetrically provided with threads of opposite rotation directions, and one end of the driving rod (12) extends into the interior of the connecting frame (5), one end of the driving slider (7) is threadedly connected to the driving rod (12), a middle section of the driving rod (12) is fixedly connected to a bevel gear 1 (13), the interior of the connecting frame (5) is fixedly connected to a driving motor (14), and an output end of the driving motor (14) is fixedly connected to a bevel gear 2 (15) meshing with the bevel gear 1 (13).

3. The precise dredging control system of a grab dredger according to claim 1, characterized in that: The crushing mechanism comprises an installation bin (16) provided inside the bucket (8); one end of the cone head (11) is fixedly connected to a transmission rod (17); one end of the transmission rod (17) passes through the bucket (8) and extends into the interior of the driving chute (6); one end of the bucket (8) is fixedly connected to a compression rod (18); one end of a plurality of compression rods (18) is fixedly connected to a triangular inclined platform (19); a reciprocating spring (20) is sleeved on the periphery of the compression rod (18); the reciprocating spring (20) is installed between the driving chute (6) and the triangular inclined platform (19); a crushing chute (21) is provided inside the driving chute (6); a crushing slider (22) adapted to the triangular inclined platform (19) is slidably connected inside the crushing chute (21); and an ejection assembly for driving the crushing slider (22) to move along the length direction of the crushing chute (21) is installed inside the driving chute (6).

4. A grab dredger precision dredging control system according to claim 3, characterized in that: The ejection assembly comprises a resistance rod (23) fixedly connected to one end of the crushing slider (22); a crushing motor (24) is fixedly connected to the inner side of the driving slide groove (6); a crushing wheel (25) is eccentrically fixedly connected to the output end of the crushing motor (24); and one end of the crushing wheel (25) is in resistance to the resistance rod (23).

5. A grab dredger precision dredging control system according to claim 4, characterized in that: One end of the crushing slider (22) is rotatably connected to a contact roller (28), and the contact roller (28) forms a rolling contact with one end of the triangular inclined platform (19).

6. The grab dredger precision dredging control system according to claim 1, characterized in that: A plurality of mud discharge holes (29) are evenly arranged at the bottom of the reciprocating slide groove (10).

7. The grab dredger precision dredging control system according to claim 1, characterized in that: A drainage port (30) is provided at one end of the bucket (8), a cover plate (31) is hingedly connected to the interior of the drainage port (30), and a contact plate (32) adapted to the cover plate (31) is fixedly connected to one end of the interior of the drainage port (30).

8. The grab dredger precision dredging control system according to claim 1, characterized in that: The surfaces of the bucket (8) and the cone head (11) are coated with organic silicon waterproof coating.

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