阅读说明：本技术 一种新型常压刀盘及盾构机 (Novel normal pressure cutter head and shield machine ) 是由 李建斌 张家年 卓兴建 孙恒 张世伟 代顺义 于 2021-07-14 设计创作，主要内容包括：本发明提供了一种新型常压刀盘及盾构机,包括刀盘盘体和刀盘法兰,还包括连接于刀盘盘体和刀盘法兰的径向内侧的筒体,筒体的内部形成常压换刀通道,常压换刀通道与刀盘盘体的内部连通,刀盘盘体与刀盘法兰通过多个扭腿连接,多个扭腿在筒体的径向外侧呈环形间隔设置。本发明采用多个扭腿作为刀盘法兰与刀盘盘体之间的连接支撑结构,采用筒体作为人工进入刀盘主梁内进行常压换刀的常压换刀通道,刀盘法兰通过多个扭腿连接支撑刀盘盘体,因此无需为了稳定支撑刀盘盘体而增大常压换刀通道,常压换刀通道可以设置的较小,只需满足人员通过即可,因此常压换刀通道占据的空间较小,使刀盘背部泥水舱的空间得以增大,从而使泥水舱内渣土流动效果更好。(The invention provides a novel normal-pressure cutter head and a shield tunneling machine, which comprise a cutter head disc body and a cutter head flange, and further comprise a cylinder body connected to the radial inner sides of the cutter head disc body and the cutter head flange, wherein a normal-pressure cutter changing channel is formed inside the cylinder body, the normal-pressure cutter changing channel is communicated with the inside of the cutter head disc body, the cutter head disc body is connected with the cutter head flange through a plurality of twisting legs, and the plurality of twisting legs are annularly arranged at intervals on the radial outer side of the cylinder body. According to the invention, the plurality of twisting legs are used as a connecting and supporting structure between the cutter flange and the cutter head disc body, the cylinder body is used as a normal-pressure cutter changing channel which enters the cutter head main beam manually for normal-pressure cutter changing, and the cutter flange is connected with and supports the cutter head disc body through the plurality of twisting legs, so that the normal-pressure cutter changing channel does not need to be increased for stably supporting the cutter head disc body, the normal-pressure cutter changing channel can be set to be smaller, and only the requirement for passing of personnel is met, therefore, the space occupied by the normal-pressure cutter changing channel is smaller, the space of a muddy water tank at the back of the cutter head is increased, and the flow effect of the residue soil in the muddy water tank is better.)

1. The utility model provides a novel ordinary pressure blade disc, includes blade disc disk body and blade disc flange, its characterized in that, still including connect in the blade disc disk body with the radial inboard barrel of blade disc flange, the inside of barrel forms ordinary pressure tool changing passageway, ordinary pressure tool changing passageway with the inside intercommunication of blade disc disk body, the blade disc disk body with the blade disc flange is connected through a plurality of legs of turning round, and is a plurality of turn round the leg and be in the radial outside of barrel is the annular interval setting.

2. The novel atmospheric pressure cutterhead of claim 1 wherein each of said torque legs is spaced from said barrel.

3. The novel atmospheric pressure cutterhead of claim 1, wherein the cutterhead flange is radially spaced from and connected to the barrel by an internal partition.

4. The novel atmospheric pressure cutterhead of claim 1 wherein said twist legs are hollow.

5. The novel atmospheric pressure cutterhead of claim 1 wherein each of said twist legs is inclined with respect to the central axis of the cutterhead, said twist legs being inclined outwardly away from said central axis from said cutterhead flange to said cutterhead disc.

6. The novel normal pressure cutterhead of claim 1, wherein the cutterhead body includes a plurality of cutterhead main beams, a plurality of cutterhead main beams are respectively connected with the cutterhead flange through a plurality of said torque legs.

7. The novel atmospheric pressure cutterhead of claim 1, wherein the barrel is a circular or polygonal cylinder.

8. The new atmospheric pressure cutter head of claim 1 wherein a hatch is provided at the entrance to the atmospheric pressure tool changing channel.

9. A shield machine, characterized in that, shield machine includes the novel ordinary pressure blade disc of any one of claims 1 to 8, anterior shield, and be located the blade disc body with muddy water cabin between the anterior shield, a plurality of turn round the leg and be located inside the muddy water cabin.

10. The shield machine of claim 9, further comprising a plurality of main drives, each of the plurality of main drives being flanged to the cutterhead, the plurality of main drives being located radially outward of the atmospheric cutter changing channel.

Technical Field

The invention relates to the technical field of tunnel excavation, in particular to a novel normal-pressure cutter head and a shield tunneling machine.

Background

As shown in fig. 1, the outer edge of a cutter flange 101 of a cutter of an existing shield tunneling machine is connected with the inner edge of a cutter head disc body 102 through an annular connecting and supporting structure 103, the connecting and supporting structure is also used as an atmospheric cutter changing channel for allowing a cutter changing person to enter a cutter head girder for atmospheric cutter changing, namely, the connecting and supporting structure between the cutter flange 101 and the cutter head disc body 102 and the atmospheric cutter changing channel are the same component, in order to stably support the cutter head disc body 102, the diameter of the connecting and supporting structure 103 needs to be larger, the connecting and supporting structure 103 with the larger diameter can occupy a larger space, so that the space of a muddy water cabin at the back of the cutter head is smaller, the flow effect of the muddy water cabin muck is influenced, the muck in the upper space of the muddy water cabin is difficult to bypass the connecting and supporting structure and fall to the lower space of the muddy water cabin, the tunneling torque of the cutter head is increased, and the construction progress is influenced.

Disclosure of Invention

The invention aims to provide a novel normal-pressure cutter head and a shield tunneling machine, and aims to solve the problem that a muddy water cabin space is smaller due to the fact that the diameter of a connecting and supporting structure of the cutter head of the existing shield tunneling machine is larger.

In order to achieve the purpose, the invention provides a novel normal-pressure cutter head, which comprises a cutter head disc body, a cutter head flange and a barrel body, wherein the barrel body is connected to the radial inner side of the cutter head disc body and the radial inner side of the cutter head flange, a normal-pressure cutter changing channel is formed inside the barrel body and is communicated with the inside of the cutter head disc body, the cutter head disc body is connected with the cutter head flange through a plurality of twisting legs, and the plurality of twisting legs are arranged on the radial outer side of the barrel body at annular intervals.

The novel normal-pressure cutter head is characterized in that the torsion legs are arranged on the cylinder body in a spaced mode.

The novel normal-pressure cutter head is characterized in that the cutter head flange is radially separated from the cylinder body through the inner partition plate and is connected with the cylinder body through the inner partition plate.

The novel normal pressure cutter head is characterized in that the twisting legs are hollow structures.

The novel normal pressure cutter head comprises a cutter head flange, a cutter head disc body and a torsion leg, wherein the torsion leg is arranged on the cutter head flange and is inclined towards the outer side of the central axis.

The novel normal-pressure cutter head comprises a plurality of cutter head main beams, wherein the cutter head main beams are a plurality of the cutter head main beams are respectively provided with a plurality of twisting legs connected with the cutter head flanges.

The novel normal-pressure cutter head is characterized in that the cylinder body is a circular cylinder or a polygonal cylinder.

The novel normal-pressure cutter head is characterized in that a cabin door is arranged at the inlet of the normal-pressure cutter changing channel.

The invention also provides a shield tunneling machine which comprises the novel normal-pressure cutter head, a front shield and a muddy water cabin positioned between the cutter head body and the front shield, wherein a plurality of the twisting legs are positioned in the muddy water cabin.

The shield machine comprises a cutter head, a cutter head flange and a plurality of main drives, wherein the main drives are connected with the cutter head flange respectively and are located on the radial outer side of a normal-pressure cutter changing channel.

The novel normal-pressure cutter head and the shield tunneling machine have the characteristics and advantages that:

1. according to the invention, a plurality of twisting legs are used as a connecting and supporting structure between a cutter flange and a cutter head body, and a cylinder body is used as a normal-pressure cutter changing channel which enters a cutter head main beam manually for normal-pressure cutter changing, so that the connecting and supporting structure between the cutter flange and the cutter head body and the normal-pressure cutter changing channel are different parts, and the cutter flange is connected with and supports the cutter head body through the plurality of twisting legs, so that the normal-pressure cutter changing channel does not need to be increased for stably supporting the cutter head body, the normal-pressure cutter changing channel can be set to be smaller, and only personnel passing is required, therefore, the space occupied by the normal-pressure cutter changing channel is smaller, and the space of a muddy water cabin at the back of the cutter head is increased, so that the flow effect of dregs in the muddy water cabin is better, and the tunneling efficiency is improved;

2. according to the invention, the mutually independent twisting legs and the normal-pressure tool changing channel are arranged, so that a plurality of connections are formed between the cutter flange and the cutter body, namely the connections of the twisting legs and the connections of the cylinder body, and therefore, the connecting and supporting effect on the cutter is also obviously improved;

3. according to the invention, the plurality of twisting legs and the barrel are arranged at intervals in the radial direction, so that a space is formed between the plurality of twisting legs and the barrel and is used as a part of the muddy water cabin, the space of the muddy water cabin is increased, and the flowing effect of the residue soil in the muddy water cabin is better.

Drawings

The drawings are only for purposes of illustrating and explaining the present invention and are not to be construed as limiting the scope of the present invention. Wherein:

FIG. 1 is a schematic structural diagram of a novel conventional atmospheric pressure cutter head;

FIG. 2 is a schematic structural diagram of the connection between the novel atmospheric pressure cutter head and the front shield;

FIG. 3 is a schematic diagram of the tool transport in the atmospheric pressure tool changing channel of the present invention;

fig. 4 is a left side view of fig. 2.

Main element number description:

1. a cutterhead disc body; 11. a cutter head main beam; 111. a back plate; 2. a cutter flange;

3. a barrel; 4. a normal pressure tool changing channel; 5. twisting legs; 6. an inner partition plate; 7. a cabin door;

8. anterior shield; 81. a front shield baffle; 9. a muddy water compartment; 10. main driving; 100. and (4) a cutter.

Detailed Description

In order to more clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will now be described with reference to the accompanying drawings. Where adjective or adverbial modifiers "upper" and "lower", "top" and "bottom", "inner" and "outer" are used merely to facilitate relative reference between groups of terms, and do not describe any particular directional limitation on the modified terms. In the description of the present invention, unless otherwise specified, the term "connected" is to be understood broadly, for example, it may be a fixed connection, a detachable connection, a direct connection, or an indirect connection via an intermediate medium, and it is obvious to those skilled in the art that the above terms are used in the patent in a specific sense.

Implementation mode one

As shown in fig. 2, the invention provides a novel normal pressure cutter head, which comprises a cutter head disk body 1 and a cutter head flange 2 which are arranged at intervals along the axial direction of the cutter head, the cutter head further comprises a cylinder body 3 connected to the radial inner side of the cutter head flange 2, the cylinder body 3 penetrates through the radial inner sides of the cutter head disk body 1 and the cutter head flange 2 and is respectively connected with the cutter head disk body 1 and the cutter head flange 2, a normal pressure cutter changing channel 4 is formed inside the cylinder body 3, the normal pressure cutter changing channel 4 is communicated with the inside of the cutter head disk body 1, when a cutter on the cutter head needs to be replaced, a cutter changer enters the inside of the cutter head from the normal pressure cutter changing channel 4 to carry out normal pressure cutter changing, the cutter head disk body 1 is connected with the cutter head flange 2 through a plurality of twisting legs 5, the plurality of twisting legs 5 are arranged at annular intervals at the radial outer side of the cylinder body 3, and the cutter head flange 2 is connected with and supports the cutter head disk body 1 through the plurality of twisting legs 5.

According to the invention, a plurality of twisting legs 5 are used as a connecting and supporting structure between a cutter flange 2 and a cutter head disc body 1, a cylinder body 3 is used as a normal-pressure cutter changing channel 4 for allowing a cutter to enter a cutter head main beam 11 for normal-pressure cutter changing, so that the connecting and supporting structure between the cutter flange 2 and the cutter head disc body 1 and the normal-pressure cutter changing channel 4 are different parts, and the cutter flange 2 is connected with and supports the cutter head disc body 1 through the twisting legs 5, so that the normal-pressure cutter changing channel 4 does not need to be increased for stably supporting the cutter head disc body 1, the normal-pressure cutter changing channel 4 can be smaller, and only the requirement for passing of personnel is met, therefore, the space occupied by the normal-pressure cutter changing channel 4 is smaller, the space of a muddy water tank 9 at the back of the cutter head is increased, the flow effect of the dregs in the cutter head tank 9 is better, and the tunneling efficiency is improved.

In addition, the invention enables the cutter flange 2 and the cutter disc body 1 to form multi-position connection by arranging the twisting legs 5 and the normal pressure tool changing channel 4, namely, the connection of the twisting legs 5 and the connection of the cylinder body 3, thereby obviously increasing the connection supporting effect of the cutter flange 2 on the cutter.

It should be noted that the present invention is not limited to the specific shape of the cylinder 3 and the normal pressure tool changing channel 4, for example, the shape of the cylinder 3 may be a circular cylinder, a rectangular cylinder or other polygonal cylinders.

As shown in fig. 2, in one embodiment, the twisting legs 5 are spaced from the barrel 3, so that a space is formed between the twisting legs 5 and the barrel 3, and the space is used as a part of the muddy water tank 9, so that the space of the muddy water tank 9 is increased, and the flowing effect of the dregs in the muddy water tank 9 is better.

As shown in fig. 2, in an embodiment, the cutter flange 2 is radially spaced from the cylinder 3 by an inner partition 6 and is connected with the inner partition 6 to increase the distance between the cutter flange 2 and the cylinder 3, and further increase the distance between the plurality of torsion legs 5 and the cylinder 3, so as to further increase the space of the muddy water tank 9.

As shown in fig. 2, in an embodiment, the torsion legs 5 are hollow structures, such as round steel pipes or square steel pipes, which provide a weight reduction effect while ensuring the supporting strength. However, the present invention is not limited thereto, and the torsion legs 5 may be formed of a steel section.

As shown in fig. 2, in an embodiment, each twisting leg 5 is disposed to be inclined with respect to the central axis of the cutter head, and each twisting leg 5 is inclined from the cutter head flange 2 to the cutter head disc body 1 toward the outer side away from the central axis, so that not only is the stable supporting effect on the cutter head improved, but also the connections between the twisting legs 5 and the cutter head disc body 1 and between the twisting legs 5 and the cutter head flange 2 are more reliable, and the joints are not easily broken.

As shown in fig. 2 and 4, in an embodiment, the cutterhead disc body 1 includes a plurality of cutterhead main beams 11, and the plurality of cutterhead main beams 11 are respectively connected with the cutterhead flange 2 through a plurality of twisting legs 5, that is, a back plate 111 of each cutterhead main beam 11 is connected with one twisting leg 5.

As shown in fig. 2 and 3, in an embodiment, a hatch door 7 is disposed at an inlet of the normal pressure tool changing channel 4, the hatch door 7 is used to close the inlet of the normal pressure tool changing channel 4, the hatch door 7 is detachably connected to the cylinder 3, for example, by a bolt, so as to open the hatch door 7, after the hatch door 7 is opened, the tool 100 is conveyed through the normal pressure tool changing channel 4, and a tool changer can enter the inside of the cutter head tray body 1 through the normal pressure tool changing channel 4 to perform normal pressure tool changing.

Second embodiment

The invention also provides a shield tunneling machine which comprises the novel normal-pressure cutter head, a front shield 8 arranged behind the cutter head and a muddy water cabin 9 positioned between the cutter head body 1 and the front shield 8 of the cutter head, wherein the plurality of twisting legs 5 are positioned inside the muddy water cabin 9. The structure and the beneficial effect of the novel normal pressure cutter head in the embodiment are the same as those of the first embodiment, and are not repeated herein.

According to the shield machine, the plurality of torsion legs 5 are arranged to be connected with the cutter head flange 2 and the cutter head disc body 1, so that the normal-pressure cutter changing channel 4 can be arranged to be smaller and only needs to be passed by personnel, the space occupied by the normal-pressure cutter changing channel 4 is smaller, the space of the muddy water cabin 9 on the back of the cutter head is increased, and the flowing effect of the muddy soil in the muddy water cabin 9 is better.

Specifically, the front shield 8 comprises a front shield partition plate 81, and the muddy water cabin 9 is positioned between the front shield partition plate 81 and the cutterhead disc body 1.

In an embodiment, the shield tunneling machine further comprises a plurality of main drives 10, the main drives 10 are respectively connected with the cutter head flange 2, the main drives 10 are located on the radial outer side of the normal-pressure cutter changing channel 4, the cutter head flange 2 can be driven to rotate by the main drives 10, and the torque is transmitted to the cutter head disc body 1 by the torsion legs 5 to enable the cutter head disc body 1 to rotate.

The above description is only an exemplary embodiment of the present invention, and is not intended to limit the scope of the present invention. Any equivalent changes and modifications that can be made by one skilled in the art without departing from the spirit and principles of the invention should be considered within the scope of the invention. It should be noted that the components of the present invention are not limited to the above-mentioned whole application, and various technical features described in the present specification can be selected to be used alone or in combination according to actual needs, so that the present invention naturally covers other combinations and specific applications related to the invention.