CN112112208A

CN112112208A - Double-rake suction lifting steering structure of large dredger

Info

Publication number: CN112112208A
Application number: CN202011104529.XA
Authority: CN
Inventors: 陈存裕
Original assignee: Zhejiang Hexing Shipbuilding Co ltd
Current assignee: Zhejiang Hexing Shipbuilding Co ltd
Priority date: 2020-10-15
Filing date: 2020-10-15
Publication date: 2020-12-22

Abstract

The invention discloses a double-rake suction lifting steering structure of a large dredger, which belongs to the technical field of dredgers and solves the problems of low dredging operation efficiency and unstable operation of a ship body; the trailing suction mechanism comprises a drag head assembly, a material conveying pipe and a joint mechanism, wherein the material conveying pipe is connected in series in a multi-section mode from the drag head assembly and is used for conveying mud materials, and the joint mechanism is connected with the end part of the material conveying pipe and is used for bending compensation; the hull lateral wall is provided with the spout, the tip of the conveying pipeline of last festival with the spout cooperation slides and carries out defeated material mouthful butt joint in the bottom position of spout, and conveying pipeline and spout rotate through steering mechanism, elevating system fixes on the deck and goes up and down to lift by crane the conveying pipeline, has reached the effect that improves the operating efficiency of dredging and reliability.

Description

Double-rake suction lifting steering structure of large dredger

Technical Field

The invention relates to the field of a dredger, in particular to a double-trailing suction lifting steering structure of a large dredger.

Background

Generally, the conventional dredger has small working capacity, small tonnage of a hull, limited dredging amount and limited dredging depth, and is difficult to operate efficiently. In order to improve the efficiency of dredging operations, it is necessary to design large dredge vessels for industrial use.

The large-scale dredge is because self tonnage is great to rely on large-scale conveyer pipe in transporting the bilge to the cabin, in order to use and carry out submarine mud digging at the bank, then need stretch into the bottom of water with large-scale conveyer pipe, the degree of depth of mud digging also is a requirement of operating efficiency, therefore ordinary conveyer pipe is difficult to use, and accomodate on the hull and all cause the conveyer pipe easily with the use and buckle, the damage, is difficult to reliable use.

Disclosure of Invention

The invention aims to overcome the defects in the prior art, at least solves the technical problems in the related technology to a certain extent, and provides a double-rake suction lifting steering structure of a large dredger so as to achieve the purposes of improving dredging depth, and efficiently and reliably dredging operation.

In order to solve the technical problems, the technical scheme of the invention is as follows: a double-trailing suction lifting steering structure of a large dredger comprises a dredger body, trailing suction mechanisms, lifting mechanisms and steering mechanisms, wherein the trailing suction mechanisms, the lifting mechanisms and the steering mechanisms are arranged on decks on two sides of the dredger body;

the trailing suction mechanism comprises a drag head assembly, a material conveying pipe and a joint mechanism, wherein the material conveying pipe is connected in series in multiple sections from the drag head assembly and is used for conveying mud materials, and the joint mechanism is connected with the end part of the material conveying pipe and is used for bending compensation;

the hull lateral wall is provided with the spout, the tip of the conveying pipeline of last festival with the spout cooperation slides and carry out defeated material mouth butt joint in the bottom position of spout, and conveying pipeline and spout rotate through steering mechanism, elevating system fixes on the deck and lifts by crane the conveying pipeline.

As specific embodiments of the present invention, the following may be preferred: the drag head assembly comprises a drag claw, a drag seat, a connecting arm and a drag head hydraulic cylinder, wherein one end of the drag seat is hinged with the drag claw, the two ends of the drag head hydraulic cylinder are respectively connected with the drag seat and the drag claw through hinges, and the connecting arm is arranged on the drag seat and is used for connecting a material conveying pipe and is communicated with the material conveying pipe.

As specific embodiments of the present invention, the following may be preferred: and the harrow seat is provided with a conveying roller which is positioned at the pocket opening of the harrow jaw.

As specific embodiments of the present invention, the following may be preferred: the articulation mechanism comprises a hose having a bellows-like structure.

As specific embodiments of the present invention, the following may be preferred: the joint mechanism further comprises two hinged seats and hinged shafts, one hinged seat is fixed at the end of one conveying pipe, the other hinged seat is fixed at the end of the other conveying pipe, the two hinged seats are rotatably assembled through the hinged shafts, the hose is located between the two hinged seats, and the two hinged seats realize internal and external rotation.

As specific embodiments of the present invention, the following may be preferred: the steering mechanism comprises a mounting seat and a steering tube which is sleeved on the mounting seat and is in sealing connection, and a sealing ring is clamped between the steering tube and the mounting seat.

As specific embodiments of the present invention, the following may be preferred: be provided with the hydraulic pressure pipe interface on the mount pad, the bottom of spout is provided with hydraulic oil interface and material conveying mouth, and the mount pad is spacing to carry out the synchronous butt joint of hydraulic oil interface and material conveying mouth in the spout.

As specific embodiments of the present invention, the following may be preferred: the lifting mechanism comprises a lifting arm, a chain, a fixed roller and a tractor, the lifting arm is hinged on the deck and turns through a hydraulic oil cylinder, one end of the chain is connected with the tractor, the other end of the chain is connected with the material conveying pipe, the chain is carried on the fixed roller, and the fixed roller is installed at the top end of the lifting arm.

As specific embodiments of the present invention, the following may be preferred: the two drag suction mechanisms are arranged and positioned on two sides of the ship body, and each conveying pipeline is dragged and lifted at least through one lifting mechanism.

The technical effects of the invention are mainly reflected in the following aspects:

1. compared with the common structure that the trailing suction mechanisms are arranged on the two sides of the ship body, the feeding length is prolonged by utilizing the connection mode of a plurality of feeding pipes, namely the depth of the dug riverbed is improved, and the working efficiency and the working capacity are improved by the two trailing suction mechanisms;

2. the joint mechanism is utilized to improve the capabilities of shock resistance and shaking resistance, the service life can be prolonged, the maintenance and overhaul cost can be reduced, and some deformation of shaking and bending can be compensated;

3. utilize elevating system and steering mechanism to realize the butt joint of mud silo mouth on conveying pipe and the hull to can realize the butt joint of hydraulic pressure hydraulic fluid port, through sealed mode, the hull utilizes the negative pressure to take out from carrying the mud and realizes probably, improves conveying efficiency.

Drawings

FIG. 1 is a schematic view of the bow direction in the embodiment;

FIG. 2 is a schematic side view of the ship in the embodiment;

FIG. 3 is an enlarged view of part A of FIG. 2 in the example;

FIG. 4 is a schematic structural view of the joint mechanism in the embodiment;

FIG. 5 is an enlarged view of the portion B of FIG. 2 in the example;

FIG. 6 is an enlarged view of the portion C of FIG. 2 in the example;

FIG. 7 is a schematic view of a steering mechanism in the embodiment.

Reference numerals: 1. a hull; 2. a deck; 3. a trailing suction mechanism; 31. a drag head assembly; 311. a harrow claw; 312. a harrow plate; 313. a connecting arm; 314. a drag head hydraulic cylinder; 315. a conveying roller; 32. a delivery pipe; 33. a joint mechanism; 331. a hose; 332. a hinged seat; 333. hinging a shaft; 4. a sliding groove; 41. a material conveying port; 42. a hydraulic oil interface; 5. a lifting mechanism; 51. a suspension arm; 52. a chain is locked; 53. fixing the roller; 54. a tractor; 6. a steering mechanism; 61. a mounting seat; 62. a sealing ring; 63. a steering tube.

Detailed Description

The embodiments of the present invention will be described in detail below, examples of which are illustrated in the accompanying drawings, and the embodiments described below by referring to the drawings are exemplary and intended to explain the present invention so that the technical aspects of the present invention can be more easily understood and appreciated, and are not to be construed as limiting the present invention.

Example (b):

a double-trailing suction lifting steering structure of a large dredger is shown in figure 1 and comprises a dredger body 1, trailing suction mechanisms 3, a lifting mechanism 5 and a steering mechanism 6, wherein the trailing suction mechanisms 3, the lifting mechanism 5 and the steering mechanism 6 are installed on decks 2 on two sides of the dredger body 1. The boat body 1 is longer, and the trailing suction mechanism 3 is also longer. Be provided with the mud storehouse that is used for storing the pug in the hull 1, the mud storehouse adopts vacuum apparatus to take out from the transport with the silt in the sea, and this type of equipment can adopt vacuum pump, or sludge pump etc.. The mud bin is arranged at the bottom of the ship body 1, and one side of the bottom is provided with an opening for entering mud.

The trailing suction mechanism 3 is a longer structure, is arranged along the length direction of the ship body 1, and is controlled by the lifting mechanism 5 to be arranged. In the initial state, the deck 2 is above the hull 1. When the ship needs to be put into use, the lifting mechanisms 5 are provided with a plurality of lifting mechanisms 5, the lifting mechanisms 5 at the end parts of the trailing suction mechanisms 3 control the trailing suction mechanisms 3 to be put outwards and matched with the ship body 1 to be butted with the material conveying ports 41 (mud inlet ports) on the ship body 1. The other lifting mechanism 5 is used for controlling and adjusting the space position of the trailing suction mechanism 3. The trailing suction mechanism 3 is provided with a plurality of material conveying pipes 32, and the material conveying pipes 32 are used for conveying pug.

As described with reference to fig. 1 and 2, the lifting mechanism 5 includes a boom 51, a chain 52, a fixed roller 53, and a tractor 54, the boom 51 is hinged to the deck 2 and is steered by a hydraulic cylinder, one end of the chain 52 is connected to the tractor 54 and the other end is connected to the feed pipe 32, the chain 52 is mounted on the fixed roller 53, and the fixed roller 53 is mounted on the top end of the boom 51. The lifting arms 51 are unfolded outwards, so that the material conveying pipe 32 is lifted and thrown out of the ship body 1, and the length of the throw of the chain 52 on each lifting arm 51 is controlled, so that the trailing suction mechanism 3 can form a slope path on the riverbed. Thus, the dispensing operation is completed.

In order to control the throwing of the long trailing suction mechanism 3, two trailing suction mechanisms 3 are arranged and positioned on two sides of the ship body 1, and each conveying pipeline 32 is pulled and lifted through at least one lifting mechanism 5. Therefore, the problem of inclined stress of the throwing of the trailing suction mechanism 3 can be well solved, and the throwing angle of the trailing suction mechanism 3 can be adjusted.

In addition, with reference to fig. 2, 5 and 6, a hydraulic pipe interface is arranged on the mounting seat 61, a hydraulic oil interface 42 and a material conveying port 41 are arranged at the bottom of the chute 4, and the mounting seat 61 is limited in the chute 4 and synchronously butted with the hydraulic oil interface 42 and the material conveying port 41. The design of the structure can simultaneously solve the butt joint problem of the hydraulic pipe interface and the material conveying interface 41 because the trailing suction mechanism 3 needs hydraulic power and needs the connection of a hydraulic pipeline. The reliability and the high efficiency of the butt joint are improved.

As described with reference to fig. 2 and 3, the drag suction mechanism 3 includes a drag head assembly 31, a feed pipe 32 connected in series in a plurality of stages from the drag head assembly 31 for conveying the sludge, and a joint mechanism 33 connected to an end of the feed pipe 32 for bend compensation. The side wall of the ship body 1 is provided with a sliding chute 4, the end part of the last conveying pipe 32 is matched with the sliding chute 4 to slide, and a conveying port 41 is butted at the bottom position of the sliding chute 4, the conveying pipe 32 and the sliding chute 4 rotate through a steering mechanism 6, and a lifting mechanism 5 is fixed on the deck 2 and lifts the conveying pipe 32.

In fig. 3, drag head assembly 31 comprises drag head 311, drag base 312, connecting arm 313 and drag head hydraulic cylinder 314, wherein one end of drag head 312 is hinged to drag head 311, two ends of drag head hydraulic cylinder 314 are respectively connected to drag base 312 and drag head 311 through hinges, and connecting arm 313 is arranged on drag base 312, is used for connecting with conveying pipe 32 and is communicated with conveying pipe 32. The drag head hydraulic cylinder 314 functions to drive the angle of the drag claw 311. In the example of fig. 3, drag head hydraulic cylinder 314 controls the angle of drag claw 311 to be 45 degrees when hull 1 is draught for about 35cm, and drag head hydraulic cylinder 314 controls the angle of drag claw 311 to be 50 degrees when hull 1 is draught for about 35 cm. Whereby the efficiency of dredging can be improved. The hull 1 drags the drag head assembly 31 to move on the river bed, and the river mud is conveyed into the hull 1 by the power of suction while moving.

In order to reduce the problem of silt blockage, a conveying roller 315 is arranged on the rake base 312, and the conveying roller 315 is positioned at the inlet of the rake claw 311. The transport rollers 315 may disperse and guide the accumulated silt, thereby facilitating efficient operation.

In this embodiment, the feeding tube 32 is connected in series and is relatively long, and the joint mechanism 33 includes a flexible tube 331 having a bellows-like structure. The structure can well overcome the influence of the shaking of the ship body 1 on the material conveying pipe 32. Further, the joint mechanism 33 further includes two hinge seats 332 and a hinge shaft 333, one hinge seat 332 is fixed at an end of one material conveying pipe 32, the other hinge seat 332 is fixed at an end of the other material conveying pipe 32, the two hinge seats 332 are rotatably assembled through the hinge shaft 333, the hose 331 is located between the two hinge seats 332, and the two hinge seats 332 realize inward and outward rotation.

Therefore, in the shaking process of the ship body 1, the conveying pipes 32 can swing in the horizontal direction, the ground grabbing force of the conveying pipes on the riverbed in the vertical direction is not influenced, and the dredging operation can be carried out more efficiently.

Referring to fig. 6 and 7, the steering mechanism 6 includes a mounting base 61, and a steering pipe 63 that is sleeved on the mounting base 61 and is connected to the mounting base 61 in a sealing manner, and a seal ring 62 is interposed between the steering pipe 63 and the mounting base 61. The steering adjustment is simply and efficiently completed in a mechanical sealing mode. In butt joint, utilize spout 4 to realize spacing and the connection of transmission, improve the accuracy and the reliability of butt joint to can effectively gather, excavate the utilization to the silt on the riverbed.

It is understood that the above are only exemplary embodiments of the present invention, and other embodiments of the present invention may be made by using equivalents or equivalent changes, which fall within the scope of the claims of the present invention.

Claims

1. A double-trailing suction lifting steering structure of a large dredger is characterized by comprising a dredger body, trailing suction mechanisms, a lifting mechanism and steering mechanisms, wherein the trailing suction mechanisms, the lifting mechanisms and the steering mechanisms are arranged on decks on two sides of the dredger body;

the trailing suction mechanism comprises a drag head assembly, a material conveying pipe and a joint mechanism, wherein the material conveying pipe is connected in series in a multi-section mode from the drag head assembly and is used for conveying mud materials, and the joint mechanism is connected with the end part of the material conveying pipe and is used for bending compensation;

the hull lateral wall is provided with the spout, the tip of the conveying pipeline of last festival with the spout cooperation slides and carries out defeated material mouth butt joint in the bottom position of spout, and conveying pipeline and spout rotate through steering mechanism, elevating system fixes on the deck and lifts by crane the conveying pipeline.

2. A large dredger double rake suction lifting steering structure as claimed in claim 1, wherein: the drag head assembly comprises a drag claw, a drag seat, a connecting arm and a drag head hydraulic cylinder, wherein one end of the drag seat is hinged with the drag claw, the two ends of the drag head hydraulic cylinder are respectively connected with the drag seat and the drag claw through hinges, and the connecting arm is arranged on the drag seat and is used for connecting a material conveying pipe and is communicated with the material conveying pipe.

3. A large dredger double rake suction lifting steering structure as claimed in claim 2, wherein: and the harrow seat is provided with a conveying roller which is positioned at the pocket opening of the harrow jaw.

4. A large dredger double rake suction lifting steering structure as claimed in claim 1, wherein: the articulation mechanism comprises a hose having a bellows-like structure.

5. A large dredger double rake suction lifting steering structure as claimed in claim 4, wherein: the joint mechanism further comprises two hinged seats and a hinged shaft, one hinged seat is fixed at the end of one conveying pipe, the other hinged seat is fixed at the end of the other conveying pipe, the two hinged seats are rotatably assembled through the hinged shaft, the hose is located between the two hinged seats, and the two hinged seats are rotated inside and outside.

6. A large dredger double rake suction lifting steering structure as claimed in claim 1, wherein: the steering mechanism comprises a mounting seat and a steering tube sleeved on the mounting seat in a sealing connection mode, and a sealing ring is clamped between the steering tube and the mounting seat.

7. A large dredger double rake suction lifting steering structure as claimed in claim 6, wherein: the hydraulic pipe connector is arranged on the mounting seat, the hydraulic oil connector and the material conveying port are arranged at the bottom of the sliding groove, and the mounting seat is limited in the sliding groove and synchronously butted with the hydraulic oil connector and the material conveying port.

8. A large dredger double rake suction lifting steering structure as claimed in claim 1, wherein: the lifting mechanism comprises a lifting arm, a chain, a fixed roller and a tractor, the lifting arm is hinged on the deck and turns through a hydraulic oil cylinder, one end of the chain is connected with the tractor, the other end of the chain is connected with a material conveying pipe, the chain is carried on the fixed roller, and the fixed roller is installed at the top end of the lifting arm.

9. A large dredger double rake suction lifting steering structure as claimed in claim 1, wherein: the two drag suction mechanisms are arranged and positioned on two sides of the ship body, and each conveying pipeline is dragged and lifted at least through one lifting mechanism.