1. The utility model provides a shaft entry driving machine suitable for tunnelling under water, its characterized in that, including blade disc (1) that is used for digging the soil layer, still including be used for to blade disc (1) carry high pressure muddy water advance thick liquid system (5), and with blade disc (1) link to each other, are used for entering carry the high pressure muddy water outflow of dregs behind blade disc (1) the play thick liquid system (6) of blade disc (1).

2. A shaft boring machine adapted for underwater boring according to claim 1, wherein the slurry feed system (5) comprises a booster pump (51), a slurry feed pipe (52) and a rotary joint (53), the slurry feed pipe (52) being connected to the booster pump (51), the rotary joint (53) being connected to the bottom of the slurry feed pipe (52); the slurry inlet pipeline (52) conveys high-pressure muddy water formed by pressurization of the pressurization pump (51) to the rotary joint (53), and the rotary joint (53) conveys the high-pressure muddy water to the cutter head (1).

3. A shaft boring machine adapted for underwater boring according to claim 2, further comprising a main beam (4) provided above the cutter head (1), the main beam (4) being of a hollow structure, the slurry inlet pipe (52) being detachably connected to an inner wall of the main beam (4).

4. A shaft boring machine adapted for underwater boring according to claim 3, wherein the slurry discharge system (6) comprises a slurry discharge pipe (61) and a drill rod (62) provided inside the main beam (4), one end of the slurry discharge pipe (61) is connected to the cutter head (1), the other end is connected to the drill rod (62), and high-pressure slurry water carrying muck flows out of the cutter head (1) through the slurry discharge pipe (61) and the drill rod (62).

5. A shaft boring machine adapted for use in underwater boring according to claim 4, characterised in that the swivel joint (53) is mounted between the drill rod (62) and the cutterhead (1).

6. A shaft boring machine adapted for underwater boring according to claim 3, further comprising a supporting propulsion system (3), the supporting propulsion system (3) comprising a supporting shoe (31) and a propulsion cylinder (32), the body of the propulsion cylinder (32) being connected to the supporting shoe (31), the propulsion rod of the propulsion cylinder (32) being connected to the main beam (4), the wall of the hole being braced by the supporting shoe (31) for the propulsion cylinder (32) to transmit the boring thrust to the cutterhead (1) through the main beam (4).

7. A shaft boring machine adapted for underwater boring according to any one of claims 2 to 6, further including a slurry collector (7) connected to the slurry discharge system (6) for containing high pressure slurry carrying muck.

8. A shaft boring machine adapted for use in underwater boring as claimed in claim 7, characterised in that the slurry collecting means (7) is embodied as a mud separating means.

9. A shaft boring machine adapted for underwater boring according to claim 8, characterised in that the mud separating device is connected to the booster pump (51) and the slurry inlet pipe (52).

Background

At present, various shaft heading machines are widely used along with the urgent need of underground space engineering construction in China. In the prior art, shaft construction methods are mainly divided into two types, one is a common construction method of a surface soil section and a bedrock section, and the other is a special construction method, wherein the special construction method is generally suitable for the condition of large underground water quantity. However, when the special construction method is adopted to construct the vertical shaft, the soil layer is often required to be additionally treated, and the one-time forming of the vertical shaft cannot be completed, so that the working efficiency of the heading machine is reduced.

Therefore, how to avoid the low working efficiency caused by the need of additionally processing the soil layer is a technical problem which needs to be solved by the technical personnel in the field at present.

Disclosure of Invention

The invention aims to provide a shaft heading machine suitable for underwater heading, which can be suitable for underwater heading, reduces the procedure of earlier stage treatment of muck, is convenient for one-step forming of a shaft, and can greatly improve the working efficiency.

In order to achieve the purpose, the invention provides a shaft boring machine suitable for underwater excavation, which comprises a cutter head used for excavating a soil layer, a slurry inlet system used for conveying high-pressure slurry to the cutter head, and a slurry outlet system connected with the cutter head and used for allowing the high-pressure slurry which enters the cutter head and carries muck to flow out of the cutter head.

Optionally, the slurry inlet system comprises a booster pump, a slurry inlet pipeline and a rotary joint, the slurry inlet pipeline is connected with the booster pump, and the rotary joint is connected with the bottom of the slurry inlet pipeline; the slurry inlet pipeline conveys high-pressure muddy water formed by pressurization of the pressurization pump to the rotary joint, and the rotary joint conveys the high-pressure muddy water to the cutter head.

Optionally, the slurry feeding device further comprises a main beam arranged above the cutter head, the main beam is of a hollow structure, and the slurry feeding pipeline is detachably connected to the inner wall of the main beam.

Optionally, go out the thick liquid system including a thick liquid pipeline with locate the drilling rod of the inside of girder, go out the one end of thick liquid pipeline with the blade disc links to each other, the other end with the drilling rod links to each other, and the high-pressure muddy water that carries dregs warp go out the thick liquid pipeline with the drilling rod flows out the blade disc.

Optionally, the swivel joint is mounted between the drill pipe and the cutterhead.

Optionally, still including supporting propulsion system, support propulsion system including propping boots and thrust cylinder, thrust cylinder's cylinder body with prop the boots and link to each other, thrust cylinder's push rod with the girder links to each other, through prop the boots and prop tight hole wall, so that thrust cylinder passes through tunnelling thrust the girder transmits to the blade disc.

Optionally, the slurry collecting device is connected with the slurry discharging system and used for containing high-pressure muddy water carrying muck.

Optionally, the slurry collecting device is embodied as a slurry separating device.

Optionally, the mud separation device is connected to the booster pump and the slurry inlet conduit.

Compared with the background art, the shaft boring machine suitable for underwater tunneling provided by the embodiment of the invention comprises a cutter head used for downwards excavating and excavating a soil layer, and further comprises a slurry inlet system and a slurry outlet system, wherein the slurry inlet system is used for conveying high-pressure slurry into the cutter head, the slurry outlet system is connected with the cutter head, and the slurry outlet system is used for allowing the high-pressure slurry which enters the cutter head and carries the residue soil to flow out of the cutter head, in order to clean the residue soil generated after the cutter head is excavated to a certain extent so as to realize one-step molding of a shaft. Compared with the traditional mode of cleaning the muck through a muck system to influence the tunneling efficiency, the shaft tunneling machine suitable for underwater tunneling provided by the embodiment of the invention can adapt to higher water pressure in the tunneling process, and can clean the muck generated in the muck layer excavated by the cutter head in the tunneling process, namely, high-pressure muddy water is conveyed to the cutter head through the slurry inlet system in the tunneling process to wash away the muck accumulated in the cutter head, and then the high-pressure muddy water carrying the muck flows out of the cutter head through the slurry outlet system, so that the working procedure of treating the muck in the early stage can be reduced, the shaft is not required to be stopped to clean the muck, and the setting mode can be convenient for one-time molding of the shaft, so that the working efficiency can be greatly improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a front view of a shaft boring machine suitable for underwater boring according to an embodiment of the present invention;

fig. 2 is a front view of an underground part of a shaft boring machine suitable for underwater boring according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of a structure supporting the propulsion system.

Wherein:

1-cutterhead, 2-main drive, 3-support propulsion system, 31-supporting shoe, 32-propulsion oil cylinder, 4-main beam, 5-slurry inlet system, 51-pressure pump, 52-slurry inlet pipeline, 53-rotary joint, 6-slurry outlet system, 61-slurry outlet pipeline, 62-drill rod, 7-slurry collecting device, 8-derrick and 9-hoisting system.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The core of the invention is to provide the shaft heading machine suitable for underwater heading, which can be suitable for underwater heading, reduce the procedure of earlier stage treatment of muck, and facilitate one-step forming of a shaft, thereby greatly improving the working efficiency.

In order that those skilled in the art will better understand the disclosure, the invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

It should be noted that the following directional terms such as "upper end, lower end, left side, right side" and the like are defined based on the drawings of the specification.

Referring to fig. 1, fig. 2 and fig. 3, fig. 1 is a front view of a shaft boring machine suitable for underwater boring according to an embodiment of the present invention; fig. 2 is a front view of an underground part of a shaft boring machine suitable for underwater boring according to an embodiment of the present invention; FIG. 3 is a schematic diagram of a structure supporting the propulsion system.

The vertical shaft heading machine suitable for underwater heading provided by the embodiment of the invention comprises a cutter head 1 for digging a soil layer downwards. The shaft heading machine has the characteristics of safety and high efficiency, is widely applied to shaft construction engineering, and the cutter head 1 is key equipment for performing full-face excavation on the bottom surface of a shaft. Of course, the cutter head 1 may be a variable-diameter cutter head.

Specifically, the excavating device further comprises a main drive 2, wherein the cutter head 1 is connected with the main drive 2, the main drive 2 is used as a main power supply element, and the main drive 2 can provide torque for the cutter head 1, namely, the cutter head 1 is driven to operate by the main drive 2 in the excavating process so as to realize the excavation of the bottom surface of the shaft.

In addition, the shaft boring machine further comprises a supporting and propelling system 3, the supporting and propelling system 3 comprises a supporting shoe 31 and a propelling cylinder 32, wherein the supporting shoe 31 is used for supporting the wall of the hole, and the supporting shoe 31 is positioned above the main drive 2. The supporting shoes 31 support the wall of the hole tightly, so that the propelling oil cylinder 32 can transmit the tunneling thrust to the cutterhead 1 through the main beam 4.

It can be seen that the shaft heading machine can realize the function of tightly supporting the wall of the hole in the excavation process only by using one group of supporting shoes 31, and compared with the prior art that a plurality of sets of supporting systems are respectively used in the excavation process, the structure is further complicated. The shaft boring machine uses a set of supporting and propelling system 3, has a simple structure, and is beneficial to reasonable layout of the inner space of the shaft boring machine.

In order to realize the forward tunneling function of the cutterhead 1, a plurality of groups of propulsion cylinders 32 are arranged between the supporting shoes 31 and the main drive 2, the propulsion cylinders 32 are connected, the cylinder bodies of the propulsion cylinders 32 are connected with the supporting shoes 31, the propulsion rods of the propulsion cylinders 32 are connected with the main beam 4, and when the cutterhead 1 is driven to tunnel forwards through the propulsion cylinders 32.

Because the position of the supporting shoe 31 relative to the hole wall is fixed, the propelling cylinder 32 takes the supporting shoe 31 as a reference to push the main drive 2 and the cutter head 1 to synchronously tunnel forwards, that is, the cutter head 1 can tunnel forwards under the action of the propelling cylinder 32 while rotating under the action of the main drive 2, and further the expanding tunneling is completed.

Further, in order to clean up the muck generated after the excavation of the cutter head 1 to a certain extent so as to realize the one-step forming of the vertical shaft, the vertical shaft heading machine further comprises a slurry inlet system 5 and a slurry outlet system 6, wherein the slurry inlet system 5 is used for conveying high-pressure muddy water into the cutter head 1, the slurry outlet system 6 is connected with the cutter head 1, and the slurry outlet system 6 is used for allowing the high-pressure muddy water which enters the cutter head 1 and carries the muck to flow out of the cutter head 1.

Compared with the traditional mode of cleaning the slag soil through a slag discharging system so as to influence the tunneling efficiency, the shaft tunneling machine suitable for underwater tunneling provided by the embodiment of the invention can adapt to higher water pressure in the tunneling process, and can clean the slag soil generated in the soil digging layer of the cutter head 1 in the tunneling process, namely, high-pressure muddy water is conveyed to the cutter head 1 through the slurry inlet system 5 in the tunneling process so as to wash away the slag soil accumulated in the cutter head 1, and the high-pressure muddy water carrying the slag soil flows out of the cutter head 1 through the slurry outlet system 6, so that the working procedure of treating the slag soil in the early stage can be reduced, the machine does not need to be stopped to clean the slag soil, the shaft can be conveniently formed at one time through the arrangement mode, and the working efficiency can be greatly improved.

Further, the slurry inlet system 5 comprises a pressure pump 51, a slurry inlet pipeline 52 and a rotary joint 53, wherein the pressure pump 51 can be arranged on the ground, the pressure pump 51 is connected with the slurry inlet pipeline 52 through a pipeline, and the rotary joint 53 is connected with the bottom of the slurry inlet pipeline 52; the slurry inlet pipe 52 can feed the high-pressure slurry pressurized by the pressurizing pump 51 to the rotary joint 53, and the rotary joint 53 feeds the high-pressure slurry into the cutter head 1.

Specifically, the main beam 4 is arranged above the cutter head 1, the main beam 4 is arranged along the axial direction of the heading machine, the main beam 4 is of a hollow structure, the slurry inlet pipeline 52 is detachably connected to the inner wall of the main beam 4, for example, the slurry inlet pipeline 52 can be fixedly connected to the inner wall of the main beam 4 through a detachable connecting piece (a screw or bolt assembly). The slurry inlet pipe 52 is vertically arranged and parallel to the main beam 4.

In order to facilitate outputting of muddy water carrying muck, the mud discharging system 6 comprises a mud discharging pipeline 61 and a drill rod 62, wherein the drill rod 62 is arranged inside the main beam 4, the drill rod 62 and the main beam 4 are coaxially arranged, one end of the mud discharging pipeline 61 is connected with the cutter head 1, the other end of the mud discharging pipeline is connected with the bottom of an inner pipe of the drill rod 62, and the inner pipe of the drill rod 62 is used for discharging muddy water. The provision of the drill rod 62 is referred to in the art. In this way, the high-pressure muddy water carrying the muck flows out of the cutter head 1 successively through the mud discharging pipe 61 and the drill rod 62.

Of course, a separate pipe may be provided in the main beam 4 for connecting to the top end of the slurry outlet pipe 61 to discharge the slurry.

The rotary joint 53 is installed between the drill pipe 62 and the cutter head 1. The swivel joint 53 comprises an upper half and a lower half, wherein the lower half can rotate relative to the upper half along the axis of the swivel joint 53, and the swivel joint 53 can ensure the communication of the internal pipeline of the swivel joint 53 during the swivel process. When the drill pipe is installed, the upper half of the rotary joint 53 is installed at the bottom of the drill pipe 62, and the lower half of the rotary joint 53 is installed at the rear end of the cutter head 1.

Of course, the swivel joint 53 can be provided as described in the prior art, and the swivel joint 53 can be a multi-circuit swivel joint conventionally provided in the prior art.

On the basis, the shaft boring machine further comprises a slurry collecting device 7, the slurry collecting device 7 is connected with the slurry discharging system 6, specifically, the slurry collecting device 7 is connected with the top of the drill rod 62 through a pipeline, and the slurry collecting device 7 is used for containing high-pressure muddy water carrying muck.

Of course, the slurry collecting device 7 is embodied as a slurry separating device according to actual needs. The mud separation device is used for separating the muck from clean mud and water. The mud separator is connected to a booster pump 51 and a slurry inlet pipe 52. In this way, the separated clean muddy water is conveyed to the slurry inlet pipeline 52 through the pressure pump 51, and the circular reciprocating is realized, so that the mud adhesion phenomenon at the drill bit can be reduced, and the slag carrying efficiency is improved.

In summary, the above process of removing the residue soil in the cutter head 1 may be: clean muddy water separated by the mud separating device is conveyed to a mud inlet pipeline 52 through a pressure pump 51, high-pressure muddy water reaches the front end of the cutter head 1 through the mud inlet pipeline 52 and a rotary joint 53 and washes dregs generated by excavation of the cutter head 1 to a mud outlet pipeline 61, further, high-pressure muddy water carrying the dregs enters the mud separating device through the mud outlet pipeline 61 and a drill rod 62, and the separated clean muddy water is conveyed to the mud inlet pipeline 52 through the pressure pump 51 to realize circulation reciprocation.

In addition, the shaft boring machine further comprises a derrick 8 and a hoisting system 9 arranged on the ground.

It is noted that, in this specification, relational terms such as first and second, and the like are used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities.

The shaft boring machine suitable for underwater boring provided by the invention is described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are provided only to help understand the concepts of the present invention and the core concepts thereof. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.