CN219863015U - High-pressure flushing drag head system and drag suction dredger - Google Patents

Abstract

The utility model provides a high-pressure flushing drag head system and a drag suction dredger, which comprise a pump suction pipe, a drag head body, a high-pressure flushing pipe, an adjustable communicating piece, a movable cover, a high-pressure water tank and a hydraulic cylinder, wherein the movable cover is arranged at the upper part of the drag head body; the adjustable communicating piece comprises a telescopic pipe and an angle adjusting piece, two ends of the telescopic pipe are respectively connected with one angle adjusting piece, one angle adjusting piece is communicated with the high-pressure flushing pipe, the other angle adjusting piece is communicated with the high-pressure water tank, and two ends of the hydraulic oil cylinder are respectively connected with the drag head body and the movable cover; the high-pressure flushing drag head system and the drag suction dredger are more durable, and the high-pressure water overflow rate cannot be influenced by the service time.

Description

High-pressure flushing drag head system and drag suction dredger

Technical Field

The utility model relates to the field of dredging equipment, in particular to a high-pressure flushing rake head system and a trailing suction hopper dredger.

Background

The drag head is used for a drag suction dredger, is the forefront equipment of a pipeline of the drag suction dredger for sucking sediment or mud, and is one of main equipment for embodying dredging capability. The quality of the drag head directly influences the working efficiency of the drag suction dredger.

The operation principle of the trailing suction hopper ship: the harrow teeth of the harrow head harrow into the soil layer of the river bed, and the harrow depth of the harrow teeth is adjusted by changing the angle of the movable cover, so that the harrow suction efficiency is ensured. The drag head is provided with a high-pressure flushing system, and the soil layer of the river bed is loosened by high-pressure water pressure to form mixed fluid such as sand, stone, slurry and the like, and the pump suction pipe body is conveyed to the cabin.

The traditional high-pressure flushing rake head system is provided with a turning structure to adapt to the angle of the movable cover, and the rubber pipe is bent and deformed to change the angle of the movable cover, so that the rake digging depth is changed. After the rubber tube is bent for many times, wrinkles are formed, long-term high-pressure water flow is flushed, and the rubber tube is easy to break and damage; meanwhile, the rubber tube turns to form folds, so that the flow rate of high-pressure water is reduced.

Disclosure of Invention

In view of the foregoing, there is a need for a high pressure flushing drag head system and a drag suction dredger that is more durable and does not affect the flow rate.

The utility model provides a high-pressure flushing rake head system which comprises a pump suction pipe, a rake head body, a high-pressure flushing pipe, an adjustable communicating piece, a movable cover, a high-pressure water tank and a hydraulic oil cylinder, wherein the movable cover is arranged at the upper part of the rake head body; the adjustable communicating piece comprises a telescopic pipe and an angle adjusting piece, two ends of the telescopic pipe are respectively connected with one angle adjusting piece, one angle adjusting piece is communicated with the high-pressure flushing pipe, the other angle adjusting piece is communicated with the high-pressure water tank, and two ends of the hydraulic oil cylinder are respectively connected with the drag head body and the movable cover.

Preferably, the adjustable communicating member further comprises an elbow and a flange, and the high-pressure flushing pipe branch pipe and the movable cover are connected with the angle adjusting member through the flange and the elbow.

Preferably, the telescopic tube comprises a first tube body, a second tube body, an inner sealing element and an outer sealing element, wherein the first tube body is partially sleeved with the second tube body, and the inner sealing element and the outer sealing element seal the sleeved joint of the first tube body and the second tube body.

Preferably, the first pipe body and the second pipe body are metal pipes.

Preferably, the high-pressure flushing pipe comprises a high-pressure flushing pipe main pipe and a high-pressure flushing pipe branch pipe, the high-pressure flushing pipe branch pipe is communicated with the high-pressure flushing pipe main pipe, and the adjustable communicating piece is communicated with the high-pressure flushing pipe branch pipe; the high-pressure water tank comprises a movable cover high-pressure water tank, the drag head system further comprises a first high-pressure flushing nozzle, the movable cover high-pressure water tank is communicated with the adjustable communicating piece, and the movable cover high-pressure water tank is further communicated with the first high-pressure flushing nozzle.

Preferably, the first high-pressure flushing nozzle comprises a stainless steel shell and a nozzle body, wherein the nozzle body is fixed inside the stainless steel shell and is made of ceramic or siren steel materials.

Preferably, the high-pressure flushing pipe comprises a high-pressure flushing pipe main pipe and a high-pressure flushing pipe branch pipe, and the high-pressure flushing pipe branch pipe is communicated with the high-pressure flushing pipe main pipe; the high-pressure water tank further comprises a suction inlet high-pressure water tank, the drag head system further comprises a second high-pressure flushing nozzle, the suction inlet high-pressure water tank is communicated with the high-pressure flushing pipe main pipe, and the suction inlet high-pressure water tank is also communicated with the second high-pressure flushing nozzle.

Preferably, the second high-pressure flushing nozzle is made of a sirocco steel material.

Preferably, the angle adjusting member is a universal ball joint.

The utility model also provides a drag suction dredger, which comprises a dredger body and any drag head system, wherein the drag head system is communicated with a pump suction port of the dredger body.

According to the high-pressure flushing rake head system, the adjustable communicating piece is arranged, so that the angle of the movable cover can be freely adjusted even if the rake head does not use a rubber pipe, the service life of the high-pressure flushing rake head system is prolonged, the replacement frequency of parts is reduced, and the overflow rate of high-pressure water is not influenced.

Drawings

The foregoing and other objects, features and advantages of the utility model will be apparent from the following more particular description of preferred embodiments of the utility model, as illustrated in the accompanying drawings. Like reference numerals refer to like parts throughout the drawings, and the drawings are not intentionally drawn to scale on actual size or the like, with emphasis on illustrating the principles of the utility model.

FIG. 1 is a side view of a high pressure flush drag head system in accordance with a preferred embodiment of the present utility model;

figure 2 is a front view of a high pressure flush rake head system according to a preferred embodiment of the utility model.

In the figure: 1. a high pressure flush pipe main; 2. a high pressure flush pipe branch; 3. an elbow; 4. a flange 4; 5. a universal ball joint; 6. a telescopic tube; 7. a seal; 8. a pump suction pipe; 9. a high-pressure water tank with a movable cover; 10. a first high pressure flush nozzle; 11. a suction inlet high pressure water tank; 12. a second high pressure flush nozzle; 13. a movable cover; 14. and a hydraulic oil cylinder.

Detailed Description

In order that the utility model may be understood more fully, the utility model will be described with reference to the accompanying drawings.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to and integrated with the other element or intervening elements may also be present. The terms "mounted," "one end," "the other end," and the like are used herein for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used in the description herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 and 2, an embodiment of the present utility model provides a high-pressure flushing rake head system, which includes a pump suction pipe 8, a rake head body, a high-pressure flushing pipe, an adjustable communication member, a movable cover 13, a high-pressure water tank and a hydraulic cylinder 14, wherein the movable cover 13 is disposed at the upper part of the rake head body, the high-pressure flushing pipe is provided with a connection port, one end of the adjustable communication member is communicated with the high-pressure flushing pipe, and the other end is communicated with the high-pressure water tank. The pump suction pipe 8 is also provided with a connecting port, and the suction inlet of the pump suction pipe 8 is connected with the suction inlet of the suction dredger to suck the dredger cabin with the sand, stone and mud water pump. The rake body comprises rake teeth, a rake pillow and other structures, and reference can be made to patents such as 'main rake for rake mechanism-201621023617.6' and 'dredger crushing rake device-201810302073.4' for specific structures of the rake (rake body), and as the prior art in this field is already provided, the utility model will not be repeated, and the utility model focuses on improvement of the high-pressure flushing mechanism of the rake configuration. The adjustable communicating piece includes flexible pipe 6 and angle adjusting piece (can be universal ball joint 5), an angle adjusting piece is connected respectively at flexible pipe 6's both ends, an angle adjusting piece is linked together with high-pressure flushing pipe, another angle adjusting piece is linked together with high-pressure water tank, hydraulic cylinder 14's both ends are connected with drag head body and activity cover 13 respectively, when hydraulic cylinder 14 drove activity cover 13 angle regulation, flexible pipe 6 can adjust its length in real time, angle adjusting piece's corresponding angle regulation, thereby adapt to the angle regulation of activity cover 13, thereby replace the rubber hose among the prior art, and then avoided the various inconvenient puzzlements that rubber hose brought, such as: after the rubber tube is bent for many times, wrinkles are formed, long-term high-pressure water flow is flushed, and the rubber tube is easy to break and damage; the rubber tube turns to form folds, so that the flow rate of high-pressure water is reduced.

In the preferred embodiment, the adjustable communication member further comprises an elbow 3 and a flange 4, and the high pressure flush tube branch pipe 2 and the movable cover 13 are connected to the angle adjusting member through the flange 4 and the elbow 3. In particular, in the present embodiment, the elbow 3 is a 60 ° steel elbow 3, and of course, different elbows 3 may be provided according to the specific embodiment. One end of the elbow 3 is communicated with the high-pressure flushing branch pipe through a flange 4, and the other end is communicated with the angle adjusting piece. The other end of the telescopic rod is provided with a flange 4 and an elbow 3 which are used for connecting an adjustable piece and a movable cover high-pressure water tank 9.

In a preferred embodiment the telescopic tube 6 comprises a first tube body and a second tube body and a sealing member, said sealing member 7 comprises an inner sealing member and an outer sealing member, the first tube body and the second tube body being partly sleeved, the inner sealing member and the outer sealing member sealing the sleeve joint of the first tube body and the second tube body for sealing the telescopic tube 6 against water. The hydraulic cylinder 14 is extended and contracted to correspondingly extend and shorten the telescopic tube 6, and simultaneously the linkage angle adjusting piece (the universal ball joint piece 5) changes the direction and acts on the movable cover 13 to change the angle and change the harrowing depth.

In a preferred embodiment, the first tube body and the second tube body are metal tubes. Specifically, the first pipe body and the second pipe body are steel pipes or copper pipes.

In the preferred embodiment, the high pressure flush pipe comprises a main high pressure flush pipe 1 and a branch high pressure flush pipe 2, the branch high pressure flush pipe 2 is in communication with the main high pressure flush pipe 1, and the adjustable communication member is in communication with the branch high pressure flush pipe 2. The high-pressure water tank comprises a movable cover high-pressure water tank 9, the drag head system further comprises a first high-pressure flushing nozzle 10, the first high-pressure flushing nozzle 10 is fixed on a movable cover 13, the movable cover high-pressure water tank 9 is communicated with an adjustable communicating piece, and the movable cover high-pressure water tank 9 is also communicated with the first high-pressure flushing nozzle 10. The movable cover high-pressure water tank 9 is used for storing high-pressure water and is used for jetting high-pressure water columns by the first high-pressure flushing nozzle 10 on the movable cover 13.

In a preferred embodiment, the first high pressure flush nozzle 10 includes a stainless steel shell and a nozzle body secured within the stainless steel shell, the nozzle body being made of a ceramic or siren material. Specifically, the steel material is polyoxymethylene. The stainless steel shell is provided with threads for interfacing with threads on the movable housing 13 to secure the first high pressure flush nozzle 10.

In the preferred embodiment, the high-pressure flushing pipe includes a high-pressure flushing pipe main pipe 1 and a high-pressure flushing pipe branch pipe 2, and the high-pressure flushing pipe branch pipe 2 communicates with the high-pressure flushing pipe main pipe 1. The high pressure water tank also comprises a suction inlet high pressure water tank 11, the rake head system also comprises a second high pressure flushing nozzle 12, the second high pressure flushing nozzle 12 is fixed on the rake head body, and in particular, the second high pressure flushing nozzle 12 is arranged on a rake pillow positioned below the rake teeth. The suction inlet high-pressure water tank 11 is communicated with the high-pressure flushing pipe main pipe 1, the suction inlet high-pressure water tank 11 is also communicated with the second high-pressure flushing nozzle 12, and the suction inlet high-pressure water tank 11 is used for spraying high-pressure water column water by the second high-pressure flushing nozzle 12 on the rake pillow.

In a preferred embodiment, the second high pressure flush nozzle 12 is made of a sirocco material. Specifically, the steel material is polyoxymethylene.

In a preferred embodiment, the angle adjustment member is a universal ball joint 5. The universal ball joint 5 is used for connecting the telescopic pipe 6, the universal ball joint can rotate 360 degrees, the angle is changed, and the harrowing depth of the movable cover 13 is adjusted.

The utility model also provides a drag suction dredger, which comprises a dredger body and any drag head system, wherein the drag head system is communicated with a pump suction port of the dredger body.

According to the high-pressure flushing rake head system, the adjustable communicating piece is arranged, so that the angle of the movable cover 13 can be freely adjusted even if the rake head does not use a rubber pipe, the service life of the high-pressure flushing rake head system is prolonged, the replacement frequency of parts is reduced, and the overflow rate of high-pressure water is not influenced.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

In the description of the present specification, a description of the terms "preferred embodiment," "further embodiment," "other embodiments," or "specific examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.

Claims (10)

1. The high-pressure flushing rake head system is characterized by comprising a pump suction pipe, a rake head body, a high-pressure flushing pipe, an adjustable communicating piece, a movable cover, a high-pressure water tank and a hydraulic oil cylinder, wherein the movable cover is arranged at the upper part of the rake head body; the adjustable communicating piece comprises a telescopic pipe and an angle adjusting piece, two ends of the telescopic pipe are respectively connected with one angle adjusting piece, one angle adjusting piece is communicated with the high-pressure flushing pipe, the other angle adjusting piece is communicated with the high-pressure water tank, and two ends of the hydraulic oil cylinder are respectively connected with the drag head body and the movable cover.

2. The high pressure flush rake head system of claim 1, wherein the adjustable communication member further comprises an elbow and a flange, and wherein the high pressure flush tube manifold and the moveable cover are both connected to the angle adjustment member by the flange and the elbow.

3. The high pressure flush drag head system of claim 1, wherein the telescoping tube comprises a first tube body, a second tube body, an inner seal and an outer seal, the first tube body and the second tube body being partially nested, the inner seal and the outer seal sealing a nested junction of the first tube body and the second tube body.

4. A high pressure flush rake head system as claimed in claim 3, wherein the first tube body and the second tube body are metal tubes.

5. The high pressure flush drag head system of claim 1, wherein the high pressure flush tube comprises a high pressure flush tube main tube and a high pressure flush tube branch tube, the high pressure flush tube branch tube being in communication with the high pressure flush tube main tube, the adjustable communication member being in communication with the high pressure flush tube branch tube; the high-pressure water tank comprises a movable cover high-pressure water tank, the drag head system further comprises a first high-pressure flushing nozzle, the movable cover high-pressure water tank is communicated with the adjustable communicating piece, and the movable cover high-pressure water tank is further communicated with the first high-pressure flushing nozzle.

6. The high pressure flush rake head system of claim 5, wherein the first high pressure flush nozzle comprises a stainless steel housing and a nozzle body secured within the stainless steel housing, the nozzle body being made of a ceramic or siren material.

7. The high pressure flush rake head system of claim 1, wherein the high pressure flush tube comprises a high pressure flush tube main and a high pressure flush tube branch, the high pressure flush tube branch in communication with the high pressure flush tube main; the high-pressure water tank further comprises a suction inlet high-pressure water tank, the drag head system further comprises a second high-pressure flushing nozzle, the suction inlet high-pressure water tank is communicated with the high-pressure flushing pipe main pipe, and the suction inlet high-pressure water tank is also communicated with the second high-pressure flushing nozzle.

8. The high pressure flush rake head system of claim 7, wherein the second high pressure flush nozzle is made of a sirloin material.

9. The high pressure flush rake head system of claim 1, wherein the angle adjustment member is a universal ball joint.

10. A suction hopper dredger comprising a dredger body and a drag head system according to any of the preceding claims 1-9, which drag head system is in communication with the pump suction of the dredger body.