A tunneling machine

Abstract

The application discloses a tunneling machine, which comprises a cutter head, a main drive and a shield body, the main drive is installed in the central area inside the shield body, the cutter head is installed at the front end of the main drive, the cutter head comprises a plurality of cutter boxes which are uniformly distributed in a radial manner around an axis, a cutter assembly is installed at the front end of each cutter box, a cutter head cabin door is installed at the rear end of each cutter box, the main drive comprises a flange part and a driving part, the cutter head is installed at the front end of the flange part, the driving part is installed at the rear end of the flange part and is used for driving the flange part to rotate, a plurality of flange box bodies which are uniformly distributed around the axis are arranged in the flange part, the plurality of flange box bodies are respectively aligned with the cutter head cabin doors, and each flange box body is communicated with a corresponding driving cabin. The cutter head can be accessed through multiple channels, as long as the cutter box to be replaced is rotated to a horizontal state, the corresponding driving cabin can be accessed, through the arrangement mode of the cutter box, a plurality of cutter boxes can be in a horizontal state, a plurality of cutter replacement points are formed, multi-point coordinated cutter replacement is realized, the cutter replacement construction efficiency is improved, and the construction cost is saved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of tunneling equipment, in particular to a tunneling machine. BACKGROUND

[0002] At present, super / large diameter tunneling machines have made outstanding contributions in complex geological condition projects such as river-crossing and sea-crossing tunnels. As one of the most advanced components of super / large diameter tunneling machines, the conventional pressure cutter head has incomparable advantages in cutter replacement safety and construction efficiency compared with the traditional cutter replacement method.

[0003] However, in the conventional pressure cutter head of the prior art, a central transition cabin is often provided in communication with the cutter box under constant pressure. When the cutter is severely worn, the corresponding cutter box needs to be first rotated to the lowest position of the cutter head, i.e. the six o'clock position facing the front of the cutter head, and then the operator enters the bottom constant pressure cutter box through the transition cabin to implement the constant pressure cutter replacement. Although the construction safety can be ensured, the cutter replacement point is single, and only one central transition cabin can be used to enter the cutter box, which is relatively low in efficiency and difficult to meet the high-efficiency cutter replacement demand of super / large diameter cutter heads.

[0004] Therefore, how to provide a tunneling machine capable of efficiently and safely replacing cutters is a technical problem that those skilled in the art need to solve urgently. SUMMARY

[0005] The purpose of the present application is to provide a tunneling machine, which realizes multi-point coordinated cutter replacement by connecting each cutter box flange box and drive cabin to enter the cutter head through multiple channels, improves the cutter replacement construction efficiency, and saves the construction cost.

[0006] To solve the above technical problems, the present application provides a tunneling machine, which comprises a cutter head, a main drive and a shield body. The main drive is installed in the central area inside the shield body, and the cutter head is installed at the front end of the main drive. The cutter head comprises a plurality of cutter boxes uniformly distributed in a radial shape around the axis. A cutter assembly is installed at the front end of each cutter box, and a cutter head cabin door is installed at the rear end of each cutter box. The main drive comprises a flange part and a drive part. The cutter head is installed at the front end of the flange part, and the drive part is installed at the rear end of the flange part and used to drive the rotation of the flange part. A plurality of flange boxes uniformly distributed around the axis are arranged in the flange part. The plurality of flange boxes are respectively aligned with the cutter head cabin doors. Each flange box is in communication with a corresponding drive cabin. A drive cabin door for personnel access is arranged on the drive cabin. When the cutter box to be replaced is rotated to a horizontal state, the cutter head cabin door is opened to communicate the cutter box and the corresponding flange box.

[0007] Preferably, the plurality of cutter boxes comprise four first cutter boxes and four second cutter boxes arranged alternately, and the inner ends of the four first cutter boxes are connected and arranged in a cross shape.

[0008] Preferably, the cutter head comprises a cutter head body, the cutter head body connects the outer ends of each first cutter box and each second cutter box along the circumference, a reinforcing ring is arranged between the adjacent first cutter box and the second cutter box,

[0009] Preferably, the four first cutter box inner end connection positions are provided with rearwardly extending rotary joints, and the rotary joints are connected to the main drive.

[0010] Preferably, a rearwardly extending cutter head support leg is installed at each cutter head door, the cutter head support leg is hollow inside and is aligned and communicated with the corresponding flange box.

[0011] Preferably, the main drive comprises a fixed part surrounding the flange part, the fixed part is fixedly connected to the outer periphery of the shield body, the flange part is movably connected to the inner periphery of the fixed part and can rotate around an axis, a plurality of drive parts are evenly distributed and installed on the fixed part in the circumferential direction, and a drive partition plate fixedly connected to the cutter head is arranged at the center of the flange part.

[0012] Preferably, the drive cabin is arranged at the rear end of the inner side wall of the flange box, and the drive cabin door is arranged at the inner side wall of the drive cabin.

[0013] Preferably, the cutter box extends radially, the cutter head door is arranged at the middle of the rear end surface of the cutter box, and the flange box is close to the outer peripheral edge of the flange part.

[0014] Preferably, the cutter head is provided with a tool changing and hoisting auxiliary, a cabin door control auxiliary, and a tool monitoring auxiliary, and the main drive is provided with a cabin door control auxiliary and a drive control auxiliary.

[0015] Preferably, a rear matching trolley and a matching system are installed at the rear end of the main drive.

[0016] The application provides a tunneling machine, comprising a cutter head, a main drive, and a shield body, the main drive is installed in the central area inside the shield body, the cutter head is installed at the front end of the main drive, the cutter head comprises a plurality of cutter boxes which are evenly distributed in a radial manner around an axis, a tool assembly is installed at the front end of each cutter box, a cutter head door is installed at the rear end of each cutter box, the main drive comprises a flange part and a drive part, the cutter head is installed at the front end of the flange part, the drive part is installed at the rear end of the flange part and is used to drive the flange part to rotate, a plurality of flange boxes which are evenly distributed around the axis are arranged in the flange part, the plurality of flange boxes are respectively aligned with each cutter head door, and each flange box is communicated with a corresponding drive cabin.

[0017] In the working process, the cutter box to be replaced is rotated to a horizontal state, the cutter disc cabin door and the driving cabin door corresponding to the driving cabin are opened, the operator enters the cutter box through the driving cabin, the flange box body and the cutter disc cabin door in sequence, and finally enters the cutter box, starts the related auxiliary device to complete the cutter replacement operation, the operator exits, and the cabin doors are closed, and the cutter disc can be further rotated to rotate other cutter boxes to the horizontal state, and the above steps are repeated for maintenance and replacement.

[0018] By connecting each cutter box to the flange box body and the driving cabin, the central transition cabin structure is abandoned, and multiple channels can be used to enter the cutter disc. As long as the cutter box to be replaced is rotated to a horizontal state, the corresponding driving cabin can be entered. Through the arrangement of the cutter box, multiple cutter boxes can be in a horizontal state, multiple cutter replacement points can be formed, multiple-point coordinated cutter replacement can be realized, cutter replacement construction efficiency can be improved, and construction cost can be saved. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 A structural schematic view of one specific embodiment of the heading machine provided by the present application;

[0020] Figure 2 A structural schematic view of the cutter disc in one specific embodiment of the heading machine provided by the present application;

[0021] Figure 3 A front end schematic view of the cutter disc in one specific embodiment of the heading machine provided by the present application;

[0022] Figure 4 A rear end schematic view of the cutter disc in one specific embodiment of the heading machine provided by the present application;

[0023] Figure 5 A structural schematic view of the main drive in one specific embodiment of the heading machine provided by the present application;

[0024] Figure 6 A front end schematic view of the main drive in one specific embodiment of the heading machine provided by the present application;

[0025] Figure 7 A cutter replacement flowchart of one specific embodiment of the heading machine provided by the present application.

[0026] 1-cutter disc, 11-cutter disc main body, 111-first cutter box, 112-second cutter box, 113-reinforcing ring, 12-cutter disc support leg, 13-cutter disc cabin door, 14-rotary joint, 15-cutter assembly, 2-main drive, 21-fixed part, 22-flange part, 221-flange box body, 222-driving partition plate, 23-driving part, 3-shield body. DETAILED DESCRIPTION

[0027] The core of the present application is to provide a tunneling machine, by connecting each cutter box flange box and drive cabin, multiple channels into the cutterhead, realize multi-point collaborative tool changing, improve the construction efficiency of tool changing, save construction cost.

[0028] In order to enable the personnel in the technical field to better understand the present application scheme, the present application is further described in detail below in combination with the drawings and specific embodiments.

[0029] Please refer to Figure 1 , Figure 1 The structure diagram of one specific embodiment of the tunneling machine provided by the present application.

[0030] The present application embodiment provides a tunneling machine, comprising a cutterhead 1, a main drive 2 and a shield body 3 arranged coaxially, the shield body 3 is a cylindrical sleeve structure, the main drive 2 is installed in the inner center area of the shield body 3, the cutterhead 1 is installed at the front end of the main drive 2, and the forward direction of the tunneling machine is defined as the front end of each component, and the reverse direction is the rear end, the cutterhead 1 comprises a plurality of cutter boxes uniformly distributed in a radial shape around the axis, each cutter box is provided with a detachable cutter assembly 15 at the front end, and each cutter box is provided with a cutterhead cabin door 13 at the rear end, the main drive 2 comprises a flange part 22 and a drive part 24, the cutterhead 1 is installed at the front end of the flange part 22, the drive part 24 is installed at the rear end of the flange part 22 and used to drive the flange part 22 to rotate, a plurality of flange box bodies 221 are arranged in the flange part 22 and uniformly distributed around the axis, each cutter box corresponds to each flange box body 221, that is, each flange box body 221 is aligned with each cutterhead cabin door 13, and each flange box body 221 is communicated with a corresponding drive cabin 23, and the drive cabin 23 is provided with a drive cabin door 231 for personnel to enter and exit.

[0031] During operation, the cutter box to be changed is rotated to a horizontal state and stopped, the cutterhead cabin door 13 on the cutter box in the horizontal state and the drive cabin door 231 of the corresponding drive cabin 23 are opened, the operator enters the cutter box through the drive cabin 23, the flange box body 221 and the cutterhead cabin door 13 in sequence, finally enters the cutter box, starts the related auxiliary device to complete the tool changing operation, the operator exits, and each cabin door is closed, and the cutterhead can be further rotated to rotate other cutter boxes to a horizontal state, and the above steps are repeated for maintenance and replacement.

[0032] By connecting each cutter box flange box body 221 and drive cabin 23, the central transition cabin structure is abandoned, it is not necessary to enter from a single channel, and the cutterhead 1 can be entered from multiple channels, as long as the cutter box to be changed is rotated to a horizontal state, it can be entered through the corresponding drive cabin 23, through the arrangement mode of the cutter box, multiple cutter boxes can be in a horizontal state, multiple tool changing points are formed, multi-point collaborative tool changing is realized, tool changing construction efficiency is improved, and construction cost is saved.

[0033] Please refer toFigures 2 to 4 Figure 2 Structure diagram of the cutter head in one embodiment of the tunneling machine provided by the present application; Figure 3 Front end diagram of the cutter head in one embodiment of the tunneling machine provided by the present application; Figure 4 Rear end diagram of the cutter head in one embodiment of the tunneling machine provided by the present application.

[0034] Specifically, the plurality of cutter boxes include four first cutter boxes 111 and four second cutter boxes 112 arranged alternately, the four first cutter boxes 111 are connected at the inner ends and arranged in a cross shape, the four second cutter boxes 112 are also arranged in a cross shape and interlaced in the right-angled sector areas formed by the four first cutter boxes 111, and the eight cutter boxes uniformly distribute the eight sector areas on the circumferential surface, and the central angle of each sector is 45 degrees. Through this arrangement, two cutter boxes can be in a horizontal state at a time, i.e. the positions enclosed by the dashed lines in the figure, and the two cutter changing points are located at the nine o'clock position and the three o'clock position on the front face of the cutter head 1 respectively. Other arrangement modes can also be adopted, such as parallel to each other and rotated to a specific angle to make all the cutter boxes horizontal.

[0035] Further, the cutter head 1 includes a circumferential cutter head body 11, the cutter head body 11 connects the outer ends of the first cutter boxes 111 and the second cutter boxes 112 along the circumference, one end of each cutter box close to the center is the inner end, and the other end is the outer end, a reinforcing ring 113 is arranged between the adjacent first cutter box 111 and the second cutter box 112, and a passing area is formed between the first cutter box 111, the second cutter box 112 and the reinforcing ring 113, and the diameter of the largest passing particle in the passing area is D. Through the above structure, the opening rate of the central area is increased, and the problem of mud cake in the central area of the existing cutter head under normal pressure can be effectively avoided.

[0036] Among them, the inner end connection of the four first cutter boxes 111 is provided with a rearwardly extending rotary joint 14, and the rotary joint 14 is connected with the main drive 2.

[0037] Since there is a certain gap between the cutter head 1 and the flange part 22, a rearwardly extending cutter head leg 12 is installed at each cutter head hatch 13, the cutter head leg 12 is a hollow channel structure, and the cutter head leg 12 is aligned with and communicates with the corresponding flange box body 221, so that the flange box body 221 and the cutter box are communicated through the channel formed by the cutter head leg 12.

[0038] Please refer to Figure 5 and Figure 6 , Figure 5 Structure diagram of the main drive in one embodiment of the tunneling machine provided by the present application; Figure 6 Front end diagram of the main drive in one embodiment of the tunneling machine provided by the present application.

[0039] ​In the tunneling machine provided in the embodiments of the present application, the main drive 2 comprises a fixed part 21 surrounding a flange part 22, the fixed part 21 is fixedly connected with the outer periphery of the shield 3, the flange part 22 is movably connected with the inner periphery of the fixed part 21 and can rotate around an axis, a plurality of drive parts 24 are evenly distributed and installed on the circumferential direction of the fixed part 21, and the flange part 22 is provided with a drive partition plate 222 which is fixedly connected with the swivel joint 14 of the cutter head 1 at the center.

[0040] Preferably, the drive cabin 23 is arranged at the rear end of the inner side wall of the flange box 221, forming an L-shaped box, and the drive cabin door 231 is arranged at the inner side wall of the drive cabin 23.

[0041] Further, the cutter box extends radially, the cutter head cabin door 13 is arranged at the middle of the rear end surface of the cutter box, and the flange box 221 is close to the outer peripheral edge of the flange part 22. The arrangement and position of each structure can also be adjusted according to the situation, which is within the protection scope of the present application.

[0042] Please refer to Figure 7 , Figure 7 The tool changing flowchart of one embodiment of the tunneling machine provided by the present application.

[0043] On the basis of the tunneling machine provided in the above embodiments, the cutter head 1 is provided with a tool changing hoisting auxiliary, a cabin door control auxiliary and a tool monitoring auxiliary, and the main drive 2 is provided with a cabin door control auxiliary and a drive control auxiliary. Further, the rear end of the main drive 2 is provided with a rear matching trolley and a matching system, and the rear matching trolley provides installation space for the matching system.

[0044] The tool changing method of the tunneling machine is as follows: the state of the tool assembly 15 is monitored in real time through the tool monitoring auxiliary, when it is monitored that the tool reaches the replacement state or needs to be regularly maintained, the drive control auxiliary controls the main drive 2 to drive the cutter head 1 to rotate to the tool changing point position and stop.

[0045] The cabin door control auxiliary is started, and the drive cabin door 231 and the cutter head cabin door 13 at the corresponding tool changing point position are opened, and the cabin doors at the remaining positions are kept in a closed state.

[0046] The operator enters the corresponding cutter box through the drive cabin 23, the cutter head support leg 12 and the like in sequence, at the same time, the tool changing hoisting auxiliary at the corresponding tool changing point position is started, and the new tool assembly 15 and tools and the like are hoisted and unloaded to the set position through the opened drive cabin 23 and cutter head support leg 12.

[0047] With the aid of the tool changing hoisting auxiliary at the tool changing point position, the tool assembly 15 is maintained or replaced one by one, and the replaced tool assembly 15 is hoisted and unloaded to the set position inside the tunneling machine along the reverse hoisting path, until the maintenance and replacement of all tool assemblies 15 at the tool changing point position are completed.

[0048] The operator exits the tool box and the driving cabin 23, closes all the cabin doors in the corresponding positions, and then starts the driving control auxiliary and the like to control the main drive 2 to drive the cutter head 1 to rotate by a set angle to the tool changing point and stop, and the above steps are repeated until the maintenance and replacement of all tool assemblies 15 on the cutter head 1 are completed.

[0049] The tunneling machine provided by the present application is described in detail above. The principles and implementation modes of the present application are described by applying specific examples in this paper, and the above description of the examples is only used to help understand the method of the present application and its core idea. It should be pointed out that, for ordinary skilled persons in the technical field, some improvements and modifications can be made to the present application without departing from the principles of the present application, and these improvements and modifications also fall within the protection scope of the claims of the present application.

Claims

1. A heading machine, characterized in that, The utility model relates to a cutter head (1), main drive (2) and shield (3) are included, main drive (2) is installed in the inside center area of shield (3), cutter head (1) is installed in the front end of main drive (2), cutter head (1) includes the plurality of cutter boxes that are evenly distributed in radial around the axis, each cutter box front end is equipped with cutter assembly (15), each cutter box rear end is equipped with cutter head cabin door (13), main drive (2) includes flange part (22) and drive part (24), cutter head (1) is installed in the front end of flange part (22), drive part (24) is installed in the rear end of flange part (22) and is used to drive flange part (22) rotation, the inside of flange part (22) is provided with the plurality of flange box (221) that are evenly distributed around the axis, a plurality of flange box (221) are respectively aligned each cutter head cabin door (13), each flange box (221) is communicated with corresponding drive cabin (23), drive cabin (23) is provided with the drive cabin door (231) for personnel to go in and out, the cutter box of waiting to change the cutter rotates to horizontal state, cutter head cabin door (13) opens to communicate cutter box and corresponding flange box (221).

2. A heading machine according to claim 1, characterized in that The plurality of cutter boxes include four first cutter boxes (111) and four second cutter boxes (112) arranged alternately, the inner ends of the four first cutter boxes (111) are connected and arranged in a cross shape.

3. A heading machine according to claim 2, characterised in that The cutter head (1) includes a cutter head body (11) connected to the outer ends of the first cutter boxes (111) and the second cutter boxes (112) along a circumference, and a reinforcing ring (113) is arranged between adjacent first cutter boxes (111) and second cutter boxes (112).

4. A heading machine according to claim 3, characterised in that A swivel joint (14) extending rearward is arranged at the connection between the inner ends of the four first cutter boxes (111), and the swivel joint (14) is connected to the main drive (2).

5. The heading machine of claim 1, wherein, A cutter head support leg (12) extending rearward is arranged at each cutter head cabin door (13), the cutter head support leg (12) is hollow inside and aligned with the corresponding flange box (221).

6. The heading machine of claim 1, wherein, The main drive (2) includes a fixed part (21) surrounding the flange part (22), the fixed part (21) is fixedly connected to the shield (3) along an outer periphery, the flange part (22) is movably connected to an inner periphery of the fixed part (21) and can rotate around an axis, a plurality of drive parts (24) are arranged on the fixed part (21) in a circumferential direction, and a drive partition plate (222) fixedly connected to the cutter head (1) is arranged at a center of the flange part (22).

7. The heading machine of claim 1, wherein, The drive cabin (23) is arranged at a rear end of an inner side wall of the flange box (221), and the drive cabin door (231) is arranged at an inner side wall of the drive cabin (23).

8. A heading machine according to claim 7, characterised in that The cutter box extends radially, the cutter head cabin door (13) is arranged at a middle part of a rear end surface of the cutter box, and the flange box (221) is close to an outer peripheral edge of the flange part (22).

9. The heading machine according to any one of claims 1 to 8, characterized by The tool disc (1) is provided with a tool changing hoisting assisting device, a hatch control assisting device and a tool monitoring assisting device.

10. A heading machine according to claim 9, characterised in that The main drive (2) is provided with a hatch control assisting device and a drive control assisting device. The main drive (2) is provided with a hatch control assisting device and a drive control assisting device.

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