CN102226346B

CN102226346B - Extrusion grab bucket for continuous desilting

Info

Publication number: CN102226346B
Application number: CN2011100862989A
Authority: CN
Inventors: 杨启; 欧阳义平; 谭家华
Original assignee: Shanghai Jiaotong University
Current assignee: Shanghai Jiaotong University
Priority date: 2011-04-07
Filing date: 2011-04-07
Publication date: 2012-07-25
Anticipated expiration: 2031-04-07
Also published as: CN102226346A

Abstract

The invention discloses an extrusion grab bucket for continuous desilting, belonging to the technical field of dredge boats. The bucket comprises at least two extrusion grab buckets for desilting and a multi-pipe converged joint, wherein the two ends of the multi-pipe converged joint are respectively connected with silt transfer pipelines of the extrusion grab bucket for desilting; the extrusion grab bucket for desilting comprises a grab bucket base, a grab bucket jaw plate, an extruded plate and two sets of hydraulic cylinders, wherein the grab bucket jaw plate is hinged on the grab bucket base and connected with the second hydraulic cylinder; when the grab bucket jaw plate is closed, a closed cavity can be formed by the grab bucket jaw plate and the grab bucket base, and the inside of the cavity is filled with excavated silt; and the extruded plate is hinged on the grab bucket jaw plate and connected with the first hydraulic cylinder, and drive the grab bucket jaw plate and the extruded plate to rotate by the two sets of hydraulic cylinders. The extrusion grab bucket for continuous desilting disclosed by the invention has the advantages that through combining at least two extrusion grab buckets for desilting, the grab buckets alternatively carry out the operations of silt excavating, extruding and conveying, thereby realizing the continuous flowing of mud in the silt transfer pipelines, and improving the operating efficiency and energy utilization ratio of the extrusion grab bucket for desilting.

Description

Desilting is with the extruding grab bucket continuously

Technical field

What the present invention relates to is a kind of device of dredge boat technical field, specifically is that a kind of continuous desilting is with the extruding grab bucket.

Background technology

At present, the deep water desilting mode mainly is a drawing-in type, does not still have and adopt grab bucket to carry out the domestic of deep water desilting.The grab bucket that is equipped with on the grab boat all is that single grab bucket works alone, and only can be applicable to shallow water.The operating efficiency of grab bucket work depends primarily on its frequency that grasps work, and the grab bucket of deep water list comes and goes work, and efficient is extremely low, also is unpractical.Therefore we adopt squash type desilting grab bucket, and grab bucket need not left the water, and only need the operation that next circulation can be carried out in mud face shift position be lifted from grab bucket.When dredging operation was carried out in an independent grab bucket but the squash type desilting is grabbed bucket, the mobile of mud was interrupted in the mud conveying pipeline, operation cycle of every completion; All can some mud in the mud conveying pipeline residual; In next operation cycle, must make the mud flow that remains in the mud conveying pipeline by consumed energy, and output in dump place or the hopper, operating efficiency is lower like this; And capacity usage ratio also fails to reach the highest, and this shortcoming is more obvious when deepwater work.

Summary of the invention

The present invention is directed to the above-mentioned deficiency that prior art exists; Provide a kind of continuous desilting with the extruding grab bucket; Action through mud is carried in the excavation of plural at least deep water desilting being got up with extruding grab bucket interlock, make each extruding grab bucket to hocket, extruding realizes that mud continues at the uniform velocity mobile in the mud conveying pipeline; Improved operating efficiency and the capacity usage ratio of desilting, reached the effect of environmental protection and energy saving with the extruding grab bucket.

The present invention is achieved by the following technical solutions; The present invention includes: a multitube junction joint and at least two desiltings are grabbed bucket with extruding; Wherein: the two ends of multitube junction joint are connected with the mud conveying pipeline and the mud riser tubing of desilting with the extruding grab bucket respectively, and described each desilting is being provided with check valve with extruding grab bucket mud conveying pipeline with multitube junction joint junction;

Described desilting comprises with the extruding grab bucket: grab bucket pedestal, grab bucket jaw, stripper plate and two groups of hydraulic cylinders; Wherein: the grab bucket jaw is hinged on the grab bucket pedestal and with second hydraulic cylinder and is connected; Can constitute a sealed hollow with the grab bucket pedestal when grab bucket jaw is closed; Cavity inside is full of the mud of excavation; Stripper plate is hinged on the grab bucket jaw and with first hydraulic cylinder and is connected; Rotate through two groups of Driven by Hydraulic Cylinder grab bucket jaws and stripper plate, thereby make the mud of grab bucket inside flow into the work that mud is carried in multitube junction joint completion extruding from being connected desilting with the mud conveying pipeline in the extruding grab bucket, grab bucket then jaw and stripper plate can both be prepared excacation next time by return under the driving of hydraulic cylinder.

The invention has the beneficial effects as follows: grab bucket with extruding through the associating desilting; The shared mud conveying pipeline of not only can a plurality of desiltings grabbing bucket; Reduce the device fabrication cost, and can make the mud in the mud conveying pipeline keep continuing to flow, reduced the energy loss that alternately causes because of the mud sound; Improve capacity usage ratio, also improved the desilting operating efficiency simultaneously.

Description of drawings

Fig. 1 is a structural representation of the present invention.

Fig. 2 is the sketch map of desilting with the extruding grab bucket.

The specific embodiment

Elaborate in the face of embodiments of the invention down, present embodiment provided detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment being to implement under the prerequisite with technical scheme of the present invention.

As shown in Figure 1, present embodiment comprises: two desiltings are with 4 and multitube junction joints 1 of extruding grab bucket, wherein: the two ends of multitube junction joint 1 are connected with the mud conveying pipeline 3 and the mud conveying pipeline 5 of desilting with extruding grab bucket 4 respectively;

Described mud conveying pipeline 3 is provided with one way valve 2 with multitube junction joint 1 junction;

Described multitube junction joint 1 is specially the hollow body structure that comprises several interfaces, and this interface is connected with mud conveying pipeline 3 through one way valve 2 or is connected with mud conveying pipeline 5 that outside defeated mud is used;

As shown in Figure 2; Described desilting comprises with extruding grab bucket 4: grab bucket pedestal 6, grab bucket jaw 13, stripper plate 11 and first hydraulic cylinder 10 and second hydraulic cylinder 14; Wherein: grab bucket jaw 13 is hinged with the pedestal 6 of grabbing bucket and 14 be connected mutually with second hydraulic cylinder at axis hole 7 places; Driving through second hydraulic cylinder 14 can make grab bucket jaw 13 rotate around grab bucket pedestal 6, accomplishes the work of excavating mud, after grab bucket jaw 13 is accomplished the excacation closure; Grab bucket jaw 13 can form an airtight cavity with grab bucket pedestal 6, and the cavity the inside has been full of mud; Stripper plate 11 is hinged with grab bucket jaw 13 and be connected with first hydraulic cylinder 10 at axis hole 12 places; Under the driving of first hydraulic cylinder 10, can rotate around grab bucket jaw 13; The volume of mud-filled cavity reduces; Make the mud in the cavity flow into the mud conveying pipeline 3 of connection desilting, flow into multitube junction joint 1 again with extruding grab bucket 4 and multitube junction joint 1 via the mud pipe joint 9 that is connected on the grab bucket pedestal 6, thus the work of completion extruding slurry conveyed; After the mud in the cavity all was squeezed out, grab bucket jaw 13 and stripper plate 11 be return under the driving of second hydraulic cylinder 14 and first hydraulic cylinder 10 respectively, prepared the excacation of next circulation.

This device has at least one desilting all the time and is in the working stage that mud is carried in extruding with extruding grab bucket 4 when dredging operation, and other hydraulic grabs in this device then are in stage of opening grab bucket or the stage of excavating mud.Because the existence of one way valve 2; Have only this desilting to be in the stage that mud is carried in extruding with extruding grab bucket 4; Its mud conveying pipeline 3 can be communicated with multitube junction joint 1 through one way valve 2; Thereby realized that the mud in the multitube junction joint 1 can only flow in the middle of dump place or the hopper through mud conveying pipeline 5, and can oppositely not flow back in the grab bucket.Therefore, this installs when dredging operation, has all the time in the mud conveying pipeline 5 to continue mobile mud.4 stepwise alternated the moving of grabbing bucket are used in a plurality of desilting extruding, and excavation, extruding conveying mud also hocket, and form the continuous Accrete clearing device that excavates and push conveying mud jointly.

Claims

1. a continuous desilting is with the extruding grab bucket; It is characterized in that; Comprise: at least two desiltings are with extruding grab bucket and a multitube junction joint; Wherein: the two ends of multitube junction joint are connected with the mud conveying pipeline that desilting is used with the mud conveying pipeline of extruding grab bucket and outwards defeated mud respectively, and mud conveying pipeline and multitube junction joint junction are equipped with one way valve;

Described multitube junction joint is the hollow body structure that comprises several interfaces, this interface is connected with the mud conveying pipeline of extruding grab bucket through said one way valve and desilting or with outwards fail the mud conveying pipeline that mud uses and be connected;

Described desilting comprises with the extruding grab bucket: grab bucket pedestal, grab bucket jaw, stripper plate and two groups of hydraulic cylinders; Wherein: the grab bucket jaw is hinged on the grab bucket pedestal and with second hydraulic cylinder and is connected; Can constitute a sealed hollow with the grab bucket pedestal when grab bucket jaw is closed; Cavity inside is full of the mud of excavation, and stripper plate is hinged on the grab bucket jaw and with first hydraulic cylinder and is connected, and rotates through two groups of Driven by Hydraulic Cylinder grab bucket jaws and stripper plate.