CN214719069U - Propelling type twisting suction head - Google Patents

Abstract

A pusher-type twisting-tip comprising: the device comprises a mud suction pipeline, a twisting suction head, a transverse supporting mechanism and a longitudinal propelling mechanism. The mud sucking pipeline and the twisting suction head can be detachably connected, mud sucked by twisting the twisting suction head can be discharged underwater through the mud sucking pipeline, the transverse supporting mechanism is used for supporting the mud sucking pipeline and the twisting suction head to be kept static in a pipe wall, and the longitudinal propelling mechanism is used for pushing the twisting suction head forwards, so that the twisting suction head has a power assisting force which continuously moves forwards when working. The application a propulsive hank suction head, can solve the desilting problem of offshore oil drilling platform steel pipe inner wall, realize horizontal and axial pipeline clearance, and during the clearance, this application can use the hank suction head alone to clear up, shared diameter scope is little, the clearance scope is bigger.

Description

Propelling type twisting suction head

Technical Field

The utility model relates to an underwater operation robot field, specificly relate to an impulse type hank suction head.

Background

With the continuous development of offshore oil, the offshore oil pipeline is more and more important as an equipment pipeline for underwater oil transmission. The construction of submarine oil and gas pipelines is accelerated in all countries, the required submarine pipeline transportation distance is continuously increased, the maximum laying depth can reach thousands of meters, and therefore the periodic cleaning of the pipelines becomes more important. The underwater pipeline cleaning is usually performed by carrying a cleaning device by an underwater robot, however, the underwater robot cannot adapt to a complex environment due to the complex environment of the seabed and the ocean current surges, so that the cleaning effect is unstable, and a lot of difficulties are brought to the seabed cleaning. At present, most of the submarine pipeline clamping technologies utilize a motor to provide power for clamping, but the motor needs to be sealed underwater, so that the structure of the submarine pipeline clamping technologies becomes complex, and the operation of the submarine pipeline clamping technologies is unstable due to the influence of factors such as underwater pressure and temperature. The cleaning mode is limited, and for most cleaning devices, the cleaning motion mode is single, the cleaning motion mode generally moves along the axial direction of the pipeline, and the pipeline cannot be cleaned in the same horizontal plane (transverse) rotation mode.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problem how compensate above-mentioned prior art's defect, provide the controllable adjustable of the hank suction degree of a hank suction head, and hank suction head at the sustainable forward motion's of during operation propulsive hank suction head of a propulsion.

The technical problem of utility model can be solved through following technical scheme:

a propelled wringer suction person comprising:

a pusher-type twisting-tip comprising: the device comprises a mud suction pipeline, a twisting suction head, a transverse supporting mechanism and a longitudinal propelling mechanism.

The mud sucking pipeline and the twisting suction head are detachably connected, the mud sucked by twisting the twisting suction head can be discharged underwater through the mud sucking pipeline, the transverse supporting mechanism is used for supporting the mud sucking pipeline and the twisting suction head to be kept static in the pipe wall, and the longitudinal propelling mechanism is used for pushing the twisting suction head forwards, so that the twisting suction head has a power assisting force which continuously moves forwards when working.

Further, the transverse supporting mechanism comprises a connecting lantern ring sleeved on the outer side of the mud suction pipeline, and a plurality of transverse hydraulic cylinders are arranged on the connecting lantern ring; one end of the transverse hydraulic cylinder is connected with the connecting lantern ring, and the other end of the transverse hydraulic cylinder is connected with the transverse supporting side wall; when the transverse hydraulic cylinder extends outwards, the transverse supporting side wall is contacted with the pipe wall to realize the supporting function.

Further, the transverse supporting mechanism comprises a transverse fixing seat, the transverse fixing seat comprises a triangular fixing part and a transverse supporting guide, and a guide hole position is arranged on the transverse supporting guide; after the transverse hydraulic cylinder extends out of the connecting sleeve ring, the transverse hydraulic cylinder penetrates through the guide hole position on the transverse support guide to be connected with the transverse support side wall, and when the transverse hydraulic cylinder stretches out and draws back, the transverse support side wall is driven to stretch out and draw back along with the transverse hydraulic cylinder.

Further, the lateral supporting side wall is arc-shaped.

Further, the transverse supporting mechanism comprises a guide sleeve, and the longitudinal propelling mechanism comprises a longitudinal guide rod; the longitudinal guide rod comprises a third fixing part and a fourth fixing part, the third fixing part and the fourth fixing part are both fixedly connected with the mud suction pipeline, the longitudinal guide rod is contained in the guide sleeve and can move in the guide sleeve, and the two moving end points of the longitudinal guide rod are the fourth fixing part and the third fixing part.

Further, the longitudinal hydraulic cylinder comprises a first fixing part and a second fixing part, and the mud suction pipeline comprises a second connecting part; the second fixing part is fixed on the connecting lantern ring, the first fixing part is connected with the second connector, and a hydraulic support rod is arranged between the first fixing part and the second fixing part.

Further, the mud suction pipeline is connected with the cutter suction head through a mud suction switching assembly;

the mud suction switching assembly comprises a plurality of mud suction pipelines.

Furthermore, the twisting suction head comprises a built-in oil tank and an underwater oil injection motor, and the built-in oil tank and the underwater oil injection motor provide power support for the twisting suction head.

Furthermore, the winch suction head comprises a hanging ring used for connecting a lifting rope.

Further, the transverse supporting mechanism and the longitudinal propelling mechanism are supported by hydraulic power on the water surface.

Compared with the prior art, the beneficial effect that this patent reaches is:

the push type twisting suction head can solve the dredging problem of the inner wall of a steel pipe of an offshore oil drilling platform, two unfavorable conditions can occur if a transverse supporting mechanism is not added and only a steel wire rope is used for hoisting the twisting suction head, firstly, when the soil is too soft and has large viscosity, the soft soil can generate pulling force on the twisting suction head to enable the twisting suction head to be sunk into the clay, the mixing twisting suction efficiency without water can be greatly reduced, and meanwhile, the load of the twisting suction head can be increased; secondly, the soil is over-hard and the cutter-suction head is pushed to the hard soil surface, so that the next cutter-suction operation cannot be carried out, and the soil is always discharged in an empty state, thereby causing work waste. This application is through increasing horizontal supporting mechanism and vertical advancing mechanism for there is horizontal location at the hank suction head under water, and it is controllable adjustable to have realized the hank suction degree of hank suction head, can deal with various underwater silt's various circumstances, and this application can use the hank suction head alone to clear up simultaneously, and shared diameter scope is little, and the clearance scope is bigger.

Drawings

FIG. 1 is a schematic overall external view of a pusher-type twisting head according to the present application;

FIG. 2 is a schematic side view of a pusher-type twisting head according to the present application;

FIG. 3 is a schematic view of a partial structure of a pusher-type twisting head according to the present application;

FIG. 4 is an enlarged view of the point A in FIG. 3;

FIG. 5 is a schematic view of a portion of a pusher-type twisting head according to the present application in another state;

FIG. 6 is an enlarged view of the point B in FIG. 5;

FIG. 7 is a simplified schematic view of a pusher-type twisting head of the present application in various states;

FIG. 8 is a top view of a pusher-type twisting head according to the present invention in a supporting state and in a retracted state.

Reference numerals in the figures

The device comprises a mud suction pipeline 1, a first connecting part 11, a second connecting part 12, a connecting hole 121, a transverse supporting mechanism 2, a connecting collar 21, a transverse fixed seat 22, a triangular fixed part 221, a transverse supporting side wall 23, a transverse supporting guide 24, a transverse hydraulic cylinder 25, a guide sleeve 26, a longitudinal propelling mechanism 3, a longitudinal hydraulic cylinder 31, a first fixed part 311, a second fixed part 312, a longitudinal guide rod 32, a third fixed part 321, a fourth fixed part 322, a mud suction adapter assembly 41, a mud suction pipeline 42, a twisting head 51, a guide wheel 511, an internal oil tank 52 and an underwater oil injection motor 53.

Detailed Description

The present invention will be further described below based on preferred embodiments with reference to the accompanying drawings.

In addition, for convenience of understanding, various components on the drawings are enlarged (thick) or reduced (thin), but this is not intended to limit the scope of the present invention.

The singular forms "a", "an", and "the" include plural referents and vice versa

In the description of the embodiments of the present invention, it should be noted that, if the terms "upper", "lower", "inner", "outer", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, or the orientation or position relationship that the products of the present invention are usually placed when using, the description is only for convenience of description and simplification, but the indication or suggestion that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be interpreted as limiting the present invention. Furthermore, in the description of the present invention, the terms first, second, etc. are used herein to distinguish between different elements, but these should not be limited by the order of manufacture or construed to indicate or imply relative importance, and their names may differ between the detailed description of the invention and the claims.

The words used in this specification are words of description used in describing embodiments of the invention, but are not intended to limit the invention. It is also to be understood that, unless otherwise expressly stated or limited, the terms "disposed," "connected," and "connected" are intended to be open-ended, i.e., may be fixedly connected, detachably connected, or integrally connected; they may be mechanically coupled, directly coupled, indirectly coupled through intervening media, or may be interconnected between two elements. The above-mentioned meaning belonging to the present invention is specifically understood by those skilled in the art.

FIG. 1 is a schematic overall external view of a pusher-type twisting head according to the present application; FIG. 2 is a schematic side view of a pusher-type twisting head according to the present application. Referring to fig. 1 and 2, as shown in fig. 1 and 2, a push type twisting suction head, which can realize the transverse positioning of an underwater robot under water and the controllable and adjustable twisting suction degree of the twisting suction head, comprises a mud suction pipeline 1, a transverse supporting mechanism 2, a longitudinal pushing mechanism 3 and a twisting suction head 5. Inhale mud pipeline 1 and hank suction head 5 and connect, the silt of inhaling through hank suction head 5 hank can be discharged through inhaling mud pipeline 1, and horizontal supporting mechanism 2 is used for supporting and inhales mud pipeline 1 and hank suction head 5 and keeps static in the pipe wall, and vertical advancing mechanism 3 is used for promoting hank suction head 5 forward for hank suction head 5 has the helping hand of a continuous forward motion at the during operation.

The mud suction pipeline 1 comprises a first connecting part 11, the first connecting part 11 can realize the connection of a plurality of sections of mud suction pipelines 1, and during work, the mud suction pipelines 1 can be connected or reduced according to the length of actual requirements to meet the requirements of underwater operation.

The mud suction pipeline 1 further comprises a second connecting part 12, and the second connecting part 12 is used for connecting the cutter head 51.

Specifically, inhale mud pipeline 1 and the detachable connection of hank suction head 51, be favorable to each part to dismantle the maintenance like this, because hank suction head 51 is the wearing parts at the during operation, inhale mud pipeline 1 and hank suction head 51 and can dismantle the connection, be convenient for change arbitrary part, reduce cost of maintenance.

FIG. 3 is a schematic view of a partial structure of a pusher-type twisting head according to the present application; FIG. 4 is an enlarged view of the point A in FIG. 3; FIG. 5 is a schematic view of a portion of a pusher-type twisting head according to the present application in another state; fig. 6 is an enlarged schematic view of B in fig. 5. Referring to fig. 3 to 6, as shown in fig. 3 to 6, the transverse supporting mechanism 2 is used for transversely supporting the mud suction pipe 1, the longitudinal propelling mechanism 2 is used for longitudinally propelling the cutter-suction head 51 during operation, and both the transverse supporting mechanism 2 and the longitudinal propelling mechanism 3 are arranged on the mud suction pipe 1 connected with the cutter-suction head 51.

In the present application, the transverse supporting mechanism 2 and the longitudinal propelling mechanism 3 are both a plurality of.

The transverse supporting mechanism 2 comprises a connecting lantern ring 21, the connecting lantern ring 21 is sleeved on the outer side of the mud suction pipeline 1 and slides on the mud suction pipeline 1. The connecting sleeve ring 21 is provided with a plurality of transverse hydraulic cylinders 25, one ends of the transverse hydraulic cylinders 25 are connected with the connecting sleeve ring 21, the other ends of the transverse hydraulic cylinders 25 are connected with the transverse supporting side walls 23, and when the transverse hydraulic cylinders 25 extend outwards, the transverse supporting side walls 23 are in contact with the pipe wall to achieve a supporting effect.

Specifically, horizontal pneumatic cylinder 25 is through horizontal fixing base 22 and be connected lantern ring 21 fixed connection, horizontal fixing base 22 includes triangle fixed part 221 and horizontal support direction 24, triangle fixed part 221 is the side support of horizontal fixing base 22, every horizontal fixing base 22 all is equipped with two triangle fixed parts 221, a holding surface of two triangle fixed parts 221 all with be connected lantern ring 21 fixed connection, it is corresponding, two triangle summits of the triangle fixed part 221 relative with aforementioned holding surface are connected through horizontal support direction 24, be equipped with the direction hole site on the horizontal support direction 24.

Specifically, after the transverse hydraulic cylinder 25 extends out of the connecting sleeve ring 21, the transverse hydraulic cylinder passes through the guide hole position on the transverse support guide 24 and is connected with the transverse support side wall 23, and when the transverse hydraulic cylinder 25 stretches, the transverse support side wall 23 is driven to stretch along with the stretching.

In the alternative of the present application, it is preferred that the lateral hydraulic cylinder 25 is detachably connected to the lateral support side wall 23.

In particular, the lateral supporting side wall 23 is in contact with the pipe wall, and during operation, the lateral supporting side wall 23 may be damaged due to uncertainty of the underwater environment, and when the lateral supporting side wall 23 is damaged, the lateral supporting side wall 23 may be replaced.

Specifically, the lateral support side wall 23 is connected to the lateral hydraulic cylinder 25 by means of a bolt connection.

Specifically, the lateral supporting side wall 23 is arc-shaped, that is, the lateral supporting side wall 23 is matched with the shape of the pipe wall, preferably, the lateral supporting side wall 23 can have a plurality of radians, and in the actual working process, the lateral supporting side wall 23 can be replaced according to the shape of the pipe wall, so as to realize the optimal supporting effect of the lateral supporting mechanism 2.

Specifically, the lateral support sidewall 23 is made of a metal material such as stainless steel.

The transverse supporting mechanism 2 is also provided with a guide sleeve 26, and the guide sleeve 26 is connected with the longitudinal propelling mechanism 3.

The longitudinal pushing mechanism 3 comprises a longitudinal hydraulic cylinder 31 and a longitudinal guide rod 32, the longitudinal guide rod 32 is used for guiding the transverse supporting mechanism 2 to longitudinally slide in the guiding direction of the longitudinal guide rod 32, and the longitudinal hydraulic cylinder 31 is used for pushing out the twisting suction head 51 so as to enhance the working effect of the twisting suction head 51.

The longitudinal guide rod 32 includes a third fixing portion 321 and a fourth fixing portion 322, and both the third fixing portion 321 and the fourth fixing portion 322 are fixedly connected to the sludge suction pipeline 1.

Specifically, the longitudinal guide rod 32 is accommodated in the guide sleeve 26, and the longitudinal guide rod 32 can move in the guide sleeve 26, thereby achieving the longitudinal guiding function of the longitudinal guide rod 32 and the guide sleeve 26, when the longitudinal guide rod 32 moves in the guide sleeve 26, the moving direction of the longitudinal guide rod 32 is fixed by the guide sleeve 26, so that the moving direction of the connection collar 21 of the transverse support mechanism 2 can only be the moving direction of the longitudinal guide rod 32 in the guide sleeve 26, i.e. the vertical direction of the longitudinal propulsion mechanism 3, and the whole moving direction of the transverse support mechanism 2 is fixed. Correspondingly, when the transverse supporting mechanism 2 is contacted with the pipe wall to realize the supporting effect and the positioning effect, the moving direction of the longitudinal pushing mechanism 3 is also fixed, and the longitudinal pushing mechanism 3 can only move in the limiting direction of the longitudinal guide rod 32 and the guide sleeve 26.

Meanwhile, in this embodiment, the mud suction pipeline 1 and the connection sleeve ring 21 are in clearance fit to ensure smooth pushing of the connection sleeve ring 21 on the mud suction pipeline 1, so that when the connection sleeve ring 21 is sleeved on the mud suction pipeline 1, the connection sleeve ring 21 may deviate except for axial movement. The cooperation of the longitudinal guide rod 32 and the guide sleeve 26 can provide a guide and limit function for the movement of the connection collar 21.

Specifically, the two moving end points of the longitudinal guide bar 32 are the fourth fixing portion 322 and the third fixing portion 321.

The longitudinal hydraulic cylinder 31 comprises a first fixing portion 311 and a second fixing portion 312, the second fixing portion 311 is fixed on the connecting sleeve ring 21, the first fixing portion 312 is connected with the second connecting portion 12, and a hydraulic support rod is arranged between the first fixing portion 311 and the second fixing portion 312.

The utility model provides a propelling type hank suction head, still includes the mud that inhales adapter assembly 41 of connecting and inhale mud pipeline 1 and hank suction head 51, inhales mud adapter assembly 41 and is used for the clear silt suction of hank suction head 51 during operation and transports to the surface of water through inhaling mud pipeline 1.

The mud suction adapter assembly 41 comprises a third connecting part, the second connecting part 12 comprises a connecting hole 121, and the third connecting part and the connecting hole 121 are connected through screws and threads.

The mud suction adapter assembly 41 further comprises a plurality of mud suction pipes 42, the mud suction pipes 42 are used for conveying the sludge cleaned by the twisting suction head 51 to the mud suction pipeline 1, and in the application, the number of the mud suction pipes 42 is 3.

The utility model provides a hank suction head of impulse type, includes hank suction head 51, includes built-in oil tank 52 and underwater oiling motor 53 on the hank suction head 51, and built-in oil tank 52 and underwater oiling motor 53 are located inside mud suction pipe 42, and hank suction head 51 is connected through mud suction pipe 42 and mud suction switching component 41.

Specifically, the sludge suction pipeline 42 may be divided into a plurality of sections, and each section may be detachably connected to the other section.

Specifically, the winch suction head 51 is further provided with a hanging ring for connecting a hanging rope, and when the winch suction head is used, the hanging rope can penetrate through the hanging ring to integrally hoist the push-type winch suction head.

In an alternative embodiment of the present application, it is preferred that the internal oil tank 52 and the underwater oiling motor 53 provide the power source for the winching head 51 separately, so that the winching head 51 can be replaced separately.

Of course, it is conceivable that the built-in oil tank 52 and the underwater oil injection motor 53 may also provide a power source for the transverse support mechanism 2 and the longitudinal propulsion mechanism 3, so that the transverse support mechanism 2 and the longitudinal propulsion mechanism 3 and the twisting head 51 share a common power source.

For the purposes of this application, the power source for the transverse support means 2 and the longitudinal propulsion means 3 and the twisting head 51 can also be provided for an electrical silo.

The twisting suction head 51 comprises a plurality of guide wheels 511, and the guide wheels 511 are distributed above the twisting suction head 51.

Specifically, the guide wheel 511 is a hub capable of rotating freely, and when the guide wheel 511 contacts with the pipe wall, the guide wheel 511 can generate friction rolling with the pipe wall.

In this embodiment, the guide wheel 511 has a guiding function and a supporting function.

Specifically, when the underwater robot 1 works in the pipe wall, the diameter of the twisting-suction head 51 is smaller than that of the pipe wall, so that the twisting-suction head 51 may be inclined in the pipe wall to rub and collide with the pipe wall. The guide wheel 511 is positioned above the twisting suction head 51, when the twisting suction head 51 inclines in the pipe wall, the guide wheel 511 is contacted with the pipe wall before the twisting suction head 51, and the guide wheel 511 guides the twisting suction head 51 to the lower part of the pipe wall along with the rotation of the wheel hub, thereby playing a role in guiding and supporting. FIG. 7 is a simplified schematic view of a pusher-type twisting head of the present application in various states; FIG. 8 is a top view of a pusher-type twisting head according to the present invention in a supported and extended position. Referring to fig. 7 and 8, as shown in fig. 7 and 8, the working principle and working steps of the push type twisting suction head disclosed by the present application are as follows:

the underwater robot has the advantages that the twisting suction head 51 can be used in underwater operation through steel rope hanging, and the twisting suction head 51 is internally provided with a power source, so that the underwater pipe wall can be cleaned only by using the twisting suction head 51.

The underwater robot comprises four states, namely a zero state, a supporting state, a telescopic state and a reset state.

When the underwater robot works, the twisting suction head 51 is placed in the underwater pipe wall through the steel rope, at the moment, the underwater robot is in a zero point state, the transverse supporting mechanism 2 contracts, and the longitudinal propelling mechanism also contracts.

Specifically, the transverse supporting mechanism 2 is contracted, so that the whole underwater robot is smaller than the inner diameter of the pipe wall, and the underwater robot can be directly placed in the pipe wall.

When the twisting suction head 51 reaches the position needing to work, the steel rope stops, and the position of the twisting suction head 51 is fixed.

Further, the underwater robot starts to work, the transverse supporting mechanism 2 works, the transverse hydraulic cylinder 25 works, the transverse supporting side wall 23 is pressed towards the pipe wall, and the transverse supporting side wall 23 is tightly attached to the pipe wall, so that the mud suction pipeline 1 of the section where the transverse supporting mechanism 2 is located is fixed to the position of the pipe wall, and further the position fixation of the underwater robot is realized. At this time, the underwater robot is in a supporting state.

Further, the twisting and sucking head 51 is operated to clean the sludge attached to the pipe wall.

In order to better clean the sludge on the pipe wall, the longitudinal propulsion mechanism 3 is also started to work, the longitudinal hydraulic cylinder 31 is operated to drive the twisting suction head to work in the axial downward direction, and the transverse supporting mechanism 2 enables the twisting suction head 51 to have a fixed force to enhance the working effect of the longitudinal propulsion mechanism 3.

In the operation process, the transverse supporting mechanism 2 is contacted with the pipe wall and is kept still, and the twisting suction head 51 and the sludge suction pipeline 1 move to the deep part of the pipe wall under the action of self gravity and the pushing action of the longitudinal pushing mechanism 3. When the longitudinal hydraulic cylinder 31 of the longitudinal propelling mechanism 3 runs to the maximum stroke or the longitudinal guide rod 32 including the third fixing part 321 descends to contact with the guide sleeve 26, the twisting suction head 51 stops advancing, and the twisting suction head 51 stops working.

At this time, the twisting suction head 51 is limited by the transverse supporting mechanism 2, the twisting suction head 51 works to the farthest distance capable of dredging, and the underwater robot is in a telescopic state.

Further, the transverse supporting mechanism 2 is retracted, the transverse hydraulic cylinder 25 is retracted, the transverse supporting side wall 23 is retracted, the transverse fixing point disappears, and the whole twisting suction head 51 and the sludge suction pipeline 1 can move. The underwater robot is in a reset state.

When the underwater robot needs to work again, the longitudinal hydraulic cylinder 31 of the longitudinal propelling mechanism 3 is retracted, the twisting suction head 51 is kept still under the action of gravity and a traction rope, the longitudinal hydraulic cylinder 31 drives the transverse supporting mechanism 2 to retract towards the twisting suction head 51, and the robot returns to the initial state. The whole robot moves a working stroke distance to the deep part of the pipe wall. Continuous work can be realized by repeating the above work.

The detailed description of the embodiments of the present invention has been presented, and it will be apparent to those skilled in the art that the present invention can be modified and modified without departing from the principles of the present invention, and the modifications and modifications also belong to the protection scope of the claims of the present invention.

Claims (10)

1. A pusher-type twisting-suction head, comprising:

the device comprises a mud suction pipeline, a twisting suction head, a transverse supporting mechanism and a longitudinal propelling mechanism;

the mud sucking pipeline and the twisting suction head are detachably connected, the mud sucked by twisting the twisting suction head can be discharged underwater through the mud sucking pipeline, the transverse supporting mechanism is used for supporting the mud sucking pipeline and the twisting suction head to be kept static in the pipe wall, the longitudinal propelling mechanism is used for pushing the twisting suction head forwards, and the transverse supporting mechanism and the longitudinal propelling mechanism work together to enable the twisting suction degree of the twisting suction head to be controllable

And the twisting and sucking head can continuously move forwards during working.

2. A pusher-type twisting head as claimed in claim 1, wherein:

the transverse supporting mechanism comprises a connecting lantern ring sleeved on the outer side of the mud suction pipeline, and a plurality of transverse hydraulic cylinders are arranged on the connecting lantern ring;

one end of the transverse hydraulic cylinder is connected with the connecting lantern ring, and the other end of the transverse hydraulic cylinder is connected with the transverse supporting side wall;

when the transverse hydraulic cylinder extends outwards, the transverse supporting side wall is contacted with the pipe wall to realize the supporting effect and the positioning effect.

3. A pusher-type twisting head as claimed in claim 2, wherein:

the transverse supporting mechanism comprises a transverse fixing seat, the transverse fixing seat comprises a triangular fixing part and a transverse supporting guide, and a guide hole position is arranged on the transverse supporting guide; after the transverse hydraulic cylinder extends out of the connecting sleeve ring, the transverse hydraulic cylinder penetrates through the guide hole position on the transverse support guide to be connected with the transverse support side wall, and when the transverse hydraulic cylinder stretches out and draws back, the transverse support side wall is driven to stretch out and draw back along with the transverse hydraulic cylinder.

4. A pusher-type twisting head as claimed in claim 2, wherein:

the lateral supporting side wall is arc-shaped.

5. A pusher-type twisting head as claimed in claim 1, wherein:

the transverse supporting mechanism comprises a guide sleeve, and the longitudinal propelling mechanism comprises a longitudinal guide rod;

the longitudinal guide rod comprises a third fixing part and a fourth fixing part, the third fixing part and the fourth fixing part are both fixedly connected with the mud suction pipeline, the longitudinal guide rod is contained in the guide sleeve and can move in the guide sleeve, and the two moving end points of the longitudinal guide rod are the fourth fixing part and the third fixing part.

6. A pusher-type twisting head as claimed in claim 2, wherein:

the longitudinal hydraulic cylinder comprises a first fixing part and a second fixing part, and the mud suction pipeline comprises a second connecting part;

the second fixing part is fixed on the connecting lantern ring, the first fixing part is connected with the second connector, and a hydraulic support rod is arranged between the first fixing part and the second fixing part.

7. A pusher-type twisting head as claimed in claim 1, wherein:

the mud suction pipeline is connected with the cutter suction head through a mud suction switching assembly; the mud suction switching assembly comprises a plurality of mud suction pipelines.

8. A pusher-type twisting head as claimed in claim 1, wherein:

the twisting suction head comprises a built-in oil tank and an underwater oil injection motor, and the built-in oil tank and the underwater oil injection motor provide power support for the twisting suction head.

9. A pusher-type twisting head as claimed in claim 1, wherein:

the twisting suction head comprises a plurality of guide wheels, and the guide wheels are distributed above the twisting suction head.

10. A pusher-type twisting head as claimed in claim 1, wherein:

the transverse supporting mechanism and the longitudinal propelling mechanism are supported by hydraulic power on the water surface.

Images