Double-nozzle angle-adjustable bow blowing device

Abstract

The invention relates to the technical field of trailing suction dredgers, and discloses a double-nozzle angle-adjustable bow blowing device which comprises an annular platform, a spherical connector, a seat frame installed on a forecastle deck of a trailing suction dredger, two bow spraying pipelines, a bow blowing pipeline and a ventilation assembly. One end of the bow blowing pipeline penetrates through the middle of the seat frame to be fixed and connected with the ventilation assembly, the top end of the spherical connector is in bolted connection with the bow blowing pipeline, and the central axis of the spherical connector coincides with the central axis of the inner ring of the annular platform. According to the double-nozzle angle-adjustable bow blowing device, a rubber pipe is arranged between a transition bent pipe and an adjusting nozzle of a bow blowing structure of a trailing suction dredger, a bent pipe hinge arm, a nozzle hinge arm and a middle connecting ring frame are used as supports, and a nozzle hydraulic cylinder and a bent pipe hydraulic cylinder are used as a control mode; therefore, the pitching angle and the left-right angle of the nozzle can be adjusted under the condition that the ship body is not moved, and the convenience and the high efficiency of nozzle angle adjustment during bow spraying operation are improved.

Description

Technical Field

[0001] The invention relates to the technical field of trailing suction hopper vessels, in particular to a bow blowing device with double nozzles and adjustable angles. Background Art

[0002] A trailing suction dredger sucks mud through a rake head placed on both sides or at the stern of the hull, and works by sucking mud while sailing. It uses a mud rake to loosen the soil, and an open mud tank is set in the ship. The tank volume represents the size of the ship. When dredging, the rake suction pipe is lowered to the river bottom, and the vacuum effect of the mud pump is used to absorb mud from the river bottom into the mud bin of the dredger through the rake head and the mud suction pipe. When the mud bin is full, the dredger starts to rake and sail to the mud dumping area to open the mud door to unload the mud, or the excavated mud is directly discharged from the ship. It is suitable for the excavation and maintenance of unprotected, narrow and long coastal port channels, and is most efficient when dredging silt.

[0003] The existing bow spray structure consists of a curved pipe and a nozzle. The pitch angle of the nozzle and the longitudinal angle between the nozzle and the hull are fixed. The optimal pitch angle of the nozzle is different for different concentrations and types of mud during bow spraying. The existing fixed nozzle pitch angle cannot be adjusted and cannot adapt to different working conditions. The left and right adjustment of the nozzle is achieved by adjusting the hull angle, which is more complicated to operate. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a bow blowing device with double nozzles and adjustable angles, which solves the problems mentioned in the above background.

[0005] The present invention provides the following technical solution: a double-nozzle angle-adjustable bow blowing device, comprising: an annular platform, a ball joint, a seat frame installed on the forecastle deck of a trailing suction hopper ship, two-way bow nozzle pipelines, a bow blowing pipeline and a venting component, the two-way bow nozzle pipelines are respectively arranged on both sides of the seat frame, one end of the bow blowing pipeline passes through the middle of the seat frame to be fixed and connected to the venting component, the top of the ball joint is bolted to the bow blowing pipeline, the center axis of the ball joint coincides with the center line of the inner ring of the annular platform, transition elbows are installed on the two bow nozzle pipelines, at least one of the transition elbows is installed with a movable nozzle, and an angle-adjustable bow blowing mechanism is provided between the transition elbow and the movable nozzle;

[0006] The angle-adjustable bow blowing mechanism includes a connecting ring frame, on which a bend hinge arm and a nozzle hinge arm are symmetrically arranged, one end of the bend hinge arm is connected to the surface of the transition bend, and one end of the nozzle hinge arm is connected to the surface of the movable nozzle. A first pushing component is arranged between the connecting ring frame and the movable nozzle, and a second pushing component is arranged between the connecting ring frame and the transition bend.

[0007] Preferably, the number of the movable nozzle is one, wherein a fixed nozzle is installed on one of the transition bends, and the other transition bend is connected to the movable nozzle.

[0008] Preferably, the number of the movable nozzles is two, and the two movable nozzles are respectively installed on the two transition bends.

[0009] Preferably, the movable nozzle comprises a rubber tube and an adjusting nozzle, one end of the rubber tube is connected to one end of the transition elbow, the other end of the rubber tube is connected to the adjusting nozzle, and the nozzle hinge arm is connected to the surface of the adjusting nozzle.

[0010] Preferably, the first pushing assembly includes a nozzle hydraulic cylinder, which is located below the adjusting nozzle, the telescopic end of the nozzle hydraulic cylinder is rotatably connected to a first fixed ear plate, and the first fixed ear plate is arranged on the adjusting nozzle, the cylinder seat of the nozzle hydraulic cylinder is rotatably connected to a first mounting ear plate, and the first mounting ear plate is arranged on a connecting ring frame.

[0011] Preferably, the second pushing assembly includes a bending pipe hydraulic cylinder, which is located on the side of the transition bending pipe, the telescopic end of the bending pipe hydraulic cylinder is rotatably connected to the second fixed ear plate, and the second fixed ear plate is arranged on the transition bending pipe, and the cylinder seat of the bending pipe hydraulic cylinder is rotatably connected to the second mounting ear plate, and the second mounting ear plate is arranged on the connecting ring frame.

[0012] Preferably, a pin is provided between the elbow hinge arm and the connecting ring frame, and between the nozzle hinge arm and the connecting ring frame;

[0013] The surface of the adjusting nozzle is welded to one end of the nozzle hinge arm, the connecting ear plate of the nozzle hinge arm is inserted into the grooves at the corresponding positions on the left and right sides of the connecting ring frame and is hinged through a pin shaft, the surface of the transition elbow is welded to one end of the elbow hinge arm, the connecting ear plate of the elbow hinge arm is inserted into the grooves at the corresponding positions on the upper and lower sides of the connecting ring frame and is hinged through a pin shaft.

[0014] Preferably, the ventilation component includes an exhaust pipe, one end of which is provided with a plurality of air guide pipes, and the plurality of air guide pipes are all installed on the top of the bow blowing pipeline.

[0015] Preferably, pipeline brackets are provided on both sides of the seat frame, and the two bow nozzle pipelines are respectively installed on the two pipeline brackets.

[0016] Preferably, a connecting seat is provided on the top of the seat frame, and a cable guide roller is rotatably connected to the inner wall of the connecting seat.

[0017] Preferably, a wire hole seat is provided at the bottom of the connecting seat, and the central axis of the wire hole seat, the central axis of the ball joint and the central axis of the ring of the annular platform coincide with each other.

[0018] Preferably, the bottom of the seat frame is welded to the top of the annular platform, and the connection between the bow blowing pipeline and the seat frame is welded.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The present invention, by arranging a movable nozzle, a connecting ring frame, a bend pipe hinge arm, a nozzle hinge arm, a first pushing assembly and a second pushing assembly, arranges a rubber tube between the transition bend pipe and the adjustment nozzle of the bow spray structure of a trailing suction hopper ship, uses the bend pipe hinge arm, the nozzle hinge arm and the middle connecting ring frame as support, and uses the nozzle hydraulic cylinder and the bend pipe hydraulic cylinder as a control method, so that the pitch angle and the left and right angle of the nozzle can be adjusted without moving the hull, thereby increasing the convenience and efficiency of the nozzle angle adjustment during the bow spray operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic structural diagram of an embodiment of a movable nozzle of the present invention;

[0022] Figure 2 It is a front view structural schematic diagram of the present invention;

[0023] Figure 3 It is a side view structural schematic diagram of the present invention;

[0024] Figure 4 It is a schematic diagram of the top view structure of the present invention;

[0025] Figure 5 It is a schematic structural diagram of the connecting ring frame, the elbow hinge arm, the nozzle hinge arm, the first pushing assembly and the second pushing assembly of the present invention;

[0026] Figure 6 A schematic diagram of the structure of the first pushing assembly and the second pushing assembly viewed from above according to the present invention;

[0027] Figure 7 The figure is a schematic diagram of the structure of an embodiment of the present invention when looking down at two movable nozzles.

[0028] In the figure: 1. annular platform; 2. ball joint; 3. seat frame; 4. bow blowing pipeline; 5. ventilation component; 51. exhaust pipe; 52. air guide pipe; 6. bow nozzle pipeline; 7. transition elbow; 8. fixed nozzle; 9. movable nozzle; 91. rubber tube; 92. adjusting nozzle; 10. connecting ring frame; 11. elbow hinge arm; 12. nozzle hinge arm; 13. first pushing component; 131. nozzle hydraulic cylinder; 132. first fixed ear plate; 133. first mounting ear plate; 14. second pushing component; 141. elbow hydraulic cylinder; 142. second fixed ear plate; 143. second mounting ear plate; 15. pin shaft; 16. pipeline bracket; 17. connecting seat; 18. cable guide roller; 19. wire hole seat. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] See also Figure 1-6 The double-nozzle angle-adjustable bow blowing device comprises: an annular platform 1, a ball joint 2, a seat frame 3 installed on the forecastle deck of a trailing suction hopper ship, two-way bow spray pipelines 6, a bow blowing pipeline 4 and a venting component 5. The two-way bow spray pipelines 6 are respectively arranged on both sides of the seat frame 3, one end of the bow blowing pipeline 4 passes through the middle of the seat frame 3 and is fixed and connected to the venting component 5. The top end of the ball joint 2 is bolted to the bow blowing pipeline 4, and the central axis of the ball joint 2 coincides with the central line of the inner ring of the annular platform 1. An annular platform 1 is arranged on the forecastle deck, on which a ball joint 2 and a seat frame 3 are respectively installed, the bottom of the seat frame 3 is welded to the top of the annular platform 1, the connection between the bow blowing pipeline 4 and the seat frame 3 is welded, and pipeline brackets 16 are arranged on both sides of the seat frame 3, two bow nozzle pipelines 6 are respectively installed on two pipeline brackets 16, and the pipeline brackets 16 support the bow nozzle pipelines 6, and transition elbows 7 are installed on the two bow nozzle pipelines 6, and at least one transition elbow 7 is installed There is a movable nozzle 9, and an angle-adjustable bow blowing mechanism is arranged between the transition elbow 7 and the movable nozzle 9. The angle-adjustable bow blowing mechanism includes a connecting ring frame 10, on which a bend hinge arm 11 and a nozzle hinge arm 12 are symmetrically arranged, one end of the bend hinge arm 11 is connected to the surface of the transition elbow 7, and one end of the nozzle hinge arm 12 is connected to the surface of the movable nozzle 9. A first pushing component 13 is arranged between the connecting ring frame 10 and the movable nozzle 9, and a second pushing component 14 is arranged between the connecting ring frame 10 and the transition elbow 7. A rubber tube 91 is arranged between the transition elbow 7 and the adjusting nozzle 92 of the bow spray structure of the trailing suction vessel, and the bend hinge arm 11, the nozzle hinge arm 12 and the middle connecting ring frame 10 are used as support, and the nozzle hydraulic cylinder 131 and the bend hydraulic cylinder 141 are used as control methods, that is, the pitch angle and the left and right angle of the nozzle can be adjusted without moving the hull, which increases the convenience and efficiency of the nozzle angle adjustment during the bow spray operation.

[0031] In a specific embodiment, Figure 1 As shown, the number of movable nozzles 9 is one, a fixed nozzle 8 is installed on one transition elbow 7, and the other transition elbow 7 is connected to the movable nozzle 9.

[0032] In a specific embodiment, Figure 7 As shown, there are two movable nozzles 9 , and the two movable nozzles 9 are respectively installed on the two transition bends 7 .

[0033] The transition elbow 7, the fixed nozzle 8 and the movable nozzle 9 have the same flange interface and can be replaced with each other. The left side, the right side or both sides of the bow nozzle pipeline can be replaced with the movable nozzle 9 with adjustable angle.

[0034] The movable nozzle 9 includes a rubber tube 91 and an adjusting nozzle 92. One end of the rubber tube 91 is connected to one end of the transition elbow 7, and the other end of the rubber tube 91 is connected to the adjusting nozzle 92. The nozzle hinge arm 12 is connected to the surface of the adjusting nozzle 92.

[0035] In a specific embodiment, the rubber tube 91 can be replaced by a ball joint, which has the same function as the rubber tube 91 and can connect pipelines at a certain angle and move freely.

[0036] The first pushing assembly 13 includes a nozzle hydraulic cylinder 131, which is located below the adjusting nozzle 92, and the telescopic end of the nozzle hydraulic cylinder 131 is rotatably connected to a first fixed ear plate 132, and the first fixed ear plate 132 is arranged on the adjusting nozzle 92, and the cylinder seat of the nozzle hydraulic cylinder 131 is rotatably connected to a first mounting ear plate 133, and the first mounting ear plate 133 is arranged on the connecting ring frame 10, and the second pushing assembly 14 includes a bending pipe hydraulic cylinder 141, which is located on the side of the transition bending pipe 7, and the telescopic end of the bending pipe hydraulic cylinder 141 is rotatably connected to a second fixed ear plate 142, and the second fixed ear plate 142 is arranged on the transition bending pipe 7, and the cylinder seat of the bending pipe hydraulic cylinder 141 is rotatably connected to a second mounting ear plate 143, and the second The mounting ear plate 143 is set on the connecting ring frame 10, and the nozzle hydraulic cylinder 131 is started. The telescopic end of the nozzle hydraulic cylinder 131 extends out to push the adjusting nozzle 92 to move upward, and the telescopic end of the nozzle hydraulic cylinder 131 is retracted to drive the adjusting nozzle 92 to move downward to adjust the pitch angle of the adjusting nozzle 92. The telescopic end of the elbow hydraulic cylinder 141 extends out to push the connecting ring frame 10 to move laterally to one side, and the connecting ring frame 10 pushes the nozzle hinge arm 12 to move, and the nozzle hinge arm 12 pushes the adjusting nozzle 92 to move to one side. The telescopic end of the elbow hydraulic cylinder 141 is retracted to push the connecting ring frame 10 to move laterally to the other side, and the connecting ring frame 10 pushes the nozzle hinge arm 12 to move, and the nozzle hinge arm 12 pushes the adjusting nozzle 92 to move to the other side to adjust the left and right angles of the adjusting nozzle 92.

[0037] A pin 15 is arranged between the elbow hinge arm 11 and the connecting ring frame 10, and between the nozzle hinge arm 12 and the connecting ring frame 10. The surface of the adjusting nozzle 92 is welded to one end of the nozzle hinge arm 12. The connecting ear plate of the nozzle hinge arm 12 is inserted into the notches at the corresponding positions on the left and right sides of the connecting ring frame 10 and is hinged through the pin 15. The surface of the transition elbow 7 is welded to one end of the elbow hinge arm 11. The connecting ear plate of the elbow hinge arm 11 is inserted into the notches at the corresponding positions on the upper and lower sides of the connecting ring frame 10 and is hinged through the pin 15. When the adjusting nozzle 92 moves, the nozzle hinge arm 12 is driven, and the nozzle hinge arm 12 is rotatably connected to the connecting ring frame 10 through the pin 15, so that the adjusting nozzle 92 rotates stably. When the elbow hydraulic cylinder 141 pushes the connecting ring frame 10 to move, the connecting ring frame 10 is rotatably connected to the elbow hinge arm 11 through the pin 15, so that the connecting ring frame 10 rotates stably.

[0038] The ventilation component 5 includes an exhaust pipe 51 , and a plurality of air guide pipes 52 are provided at one end of the exhaust pipe 51 , and the plurality of air guide pipes 52 are all installed on the top of the bow blowing pipeline 4 .

[0039] A connecting seat 17 is arranged on the top of the seat frame 3, and a cable guide roller 18 is rotatably connected to the inner wall of the connecting seat 17. A wire hole seat 19 is arranged on the bottom of the connecting seat 17, and the central axis of the wire hole seat 19, the central axis of the ball joint 2 and the central axis of the circular ring of the annular platform 1 coincide with each other.

[0040] The annular platform 1 is welded to the bottom of the seat frame 3, the bow blowing pipeline 4 passes through the seat frame 3 and is welded and fixed at the connection of the bow blowing pipeline 4 passing through the seat frame 3, the opening above the tail pipeline of the bow blowing pipeline 4 is welded and fixed to the air guide pipe 52 of the air permeable component 5, the ball joint 2 is connected to the front end flange of the bow blowing pipeline 4 and is located at the center line of the ring of the annular platform 1, the two bow spray pipelines 6 are respectively arranged on the pipeline brackets 16 on both sides of the seat frame 3, and the connection between the bow spray pipeline 6 and the pipeline bracket 16 is welded and fixed, and the nozzle 92 and the front end of the rubber tube 91 are adjusted. Flange connection, the rubber tube 91 is connected to the front end flange of the transition elbow 7, the connecting seat 17 is installed on the top of the seat frame 3, the central axis of the wire hole seat 19, the central axis of the ball joint 2 and the circular center axis of the annular platform 1 coincide, the bow nozzle pipeline 6 is connected to the corresponding working pipeline of the trailing suction hopper ship, the nozzle hydraulic cylinder 131 is started, and the pitch angle of the nozzle 92 is controlled by the extension and contraction of the nozzle hydraulic cylinder 131, and the elbow hydraulic cylinder 141 is started, and the left and right angles of the nozzle 92 are controlled by the extension and contraction of the elbow hydraulic cylinder 141.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Double nozzle angle adjustable bow blowing device, characterized by: include: An annular platform (1), a spherical joint (2), a seat frame (3) mounted on the forecastle deck of a trailing suction hopper ship, two bow nozzle pipelines (6), a bow blowing pipeline (4) and a venting assembly (5), wherein the two bow nozzle pipelines (6) are arranged on both sides of the seat frame (3), one end of the bow blowing pipeline (4) passes through the middle of the seat frame (3) and is fixed and connected to the venting assembly (5), the top end of the spherical joint (2) is bolted to the bow blowing pipeline (4), the center axis of the spherical joint (2) coincides with the center line of the inner ring of the annular platform (1), both of the two bow nozzle pipelines (6) are mounted with a transition elbow (7), at least one of the transition elbows (7) is mounted with a movable nozzle (9), and an angle-adjustable bow blowing mechanism is arranged between the transition elbow (7) and the movable nozzle (9); The angle-adjustable bow blowing mechanism comprises a connecting ring frame (10), on which a bend pipe hinge arm (11) and a nozzle hinge arm (12) are symmetrically arranged, one end of the bend pipe hinge arm (11) is connected to the surface of a transition bend pipe (7), one end of the nozzle hinge arm (12) is connected to the surface of a movable nozzle (9), a first pushing component (13) is arranged between the connecting ring frame (10) and the movable nozzle (9), and a second pushing component (14) is arranged between the connecting ring frame (10) and the transition bend pipe (7).

2. The double-nozzle angle-adjustable bow blowing device according to claim 1 is characterized in that: The number of the movable nozzle (9) is one, a fixed nozzle (8) is installed on one of the transition bends (7), and the other transition bend (7) is connected to the movable nozzle (9).

3. The double-nozzle angle-adjustable bow blowing device according to claim 1 is characterized in that: The number of the movable nozzles (9) is two, and the two movable nozzles (9) are respectively mounted on the two transition bends (7).

4. The double-nozzle angle-adjustable bow blowing device according to claim 2 or 3, characterized in that: The movable nozzle (9) comprises a rubber tube (91) and an adjusting nozzle (92); one end of the rubber tube (91) is connected to one end of the transition elbow (7); the other end of the rubber tube (91) is connected to the adjusting nozzle (92); and the nozzle hinge arm (12) is connected to the surface of the adjusting nozzle (92).

5. The double-nozzle angle-adjustable bow blowing device according to claim 4 is characterized in that: The first pushing assembly (13) comprises a nozzle hydraulic cylinder (131), the nozzle hydraulic cylinder (131) is located below the adjusting nozzle (92), the telescopic end of the nozzle hydraulic cylinder (131) is rotatably connected to a first fixed ear plate (132), and the first fixed ear plate (132) is arranged on the adjusting nozzle (92), and the cylinder seat of the nozzle hydraulic cylinder (131) is rotatably connected to a first mounting ear plate (133), and the first mounting ear plate (133) is arranged on the connecting ring frame (10).

6. The double-nozzle angle-adjustable bow blowing device according to claim 5 is characterized in that: The second pushing assembly (14) comprises a pipe bending hydraulic cylinder (141), the pipe bending hydraulic cylinder (141) is located on the side of the transition pipe bending (7), the telescopic end of the pipe bending hydraulic cylinder (141) is rotatably connected to a second fixed ear plate (142), and the second fixed ear plate (142) is arranged on the transition pipe bending (7), and the cylinder seat of the pipe bending hydraulic cylinder (141) is rotatably connected to a second mounting ear plate (143), and the second mounting ear plate (143) is arranged on the connecting ring frame (10).

7. The double-nozzle angle-adjustable bow blowing device according to claim 4 is characterized in that: A pin shaft (15) is arranged between the elbow hinge arm (11) and the connecting ring frame (10), and between the nozzle hinge arm (12) and the connecting ring frame (10); The surface of the adjusting nozzle (92) is welded to one end of the nozzle hinge arm (12); the connecting ear plate of the nozzle hinge arm (12) is inserted into the notches at corresponding positions on the left and right sides of the connecting ring frame (10) and is hinged through a pin shaft (15); the surface of the transition elbow (7) is welded to one end of the elbow hinge arm (11); the connecting ear plate of the elbow hinge arm (11) is inserted into the notches at corresponding positions on the upper and lower sides of the connecting ring frame (10) and is hinged through a pin shaft (15).

8. The double-nozzle angle-adjustable bow blowing device according to claim 4 is characterized in that: The ventilation component (5) comprises an exhaust pipe (51), one end of which is provided with a plurality of air guide pipes (52), and the plurality of air guide pipes (52) are all installed on the top of the bow blowing pipeline (4).

9. The double-nozzle angle-adjustable bow blowing device according to claim 4, characterized in that: Pipeline brackets (16) are provided on both sides of the seat frame (3), and the two bow nozzle pipelines (6) are respectively installed on the two pipeline brackets (16).

10. The double-nozzle angle-adjustable bow blowing device according to claim 4, characterized in that: A connecting seat (17) is provided on the top of the seat frame (3), and a cable guide roller (18) is rotatably connected to the inner wall of the connecting seat (17).

11. The double-nozzle angle-adjustable bow blowing device according to claim 10, characterized in that: A wire hole seat (19) is provided at the bottom of the connection seat (17), and the central axis of the wire hole seat (19), the central axis of the ball joint (2) and the central axis of the ring of the annular platform (1) coincide with each other.

12. The double-nozzle angle-adjustable bow blowing device according to claim 1, characterized in that: The bottom of the seat frame (3) is welded to the top of the annular platform (1), and the connection between the bow blowing pipeline (4) and the seat frame (3) is welded.

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