Tunnel construction device cutter head system, transmission assembly out-of-cabin anti-collision method and shield machine

Abstract

The present disclosure relates to a cutterhead system of a tunnel construction device, a collision prevention method for a transmission assembly out of a cabin, and a shield tunneling machine. The cutterhead system of the tunnel construction device comprises a cutterhead, a cabin body arranged on the cutterhead, an actuator, and a transmission assembly arranged in the cabin body. The transmission assembly comprises a first translation platform, a rotation platform, and a second translation platform. The first translation platform is connected to the cabin body. The rotation platform is connected to the first translation platform and the second translation platform. The actuator is arranged on the second translation platform. The first translation platform is configured to send the rotation platform and the second translation platform out of the cabin body. The rotation platform is configured to adjust the rotation angle of the second translation platform. The second translation platform is configured to send the actuator to a working position of the cutterhead. Through the cooperation of the first translation platform, the rotation platform, and the second translation platform, the out-of-cabin action is realized. The replacement or repair of the parts is realized through the actuator. The decoupling of multiple joints is realized. The control difficulty is reduced. The accuracy can be guaranteed.

Description

Technical Field

[0001] The present disclosure relates to the field of tunnel construction, and in particular to a cutterhead system of a tunnel construction device, an anti-collision method for a transmission component exiting a cabin, and a shield machine. Background Art

[0002] Tunnel boring machines (TBMs) are large-scale tunnel construction equipment that primarily rely on a rotating cutterhead to cut rock and soil for forward excavation. During tunneling operations, cutterhead tools wear and other components become damaged, necessitating periodic replacement of cutterhead tools and other components.

[0003] In some related technologies, the replacement of cutter disc parts is mainly done manually with the help of tools such as hand hoists and electric hoists. Workers perform high-intensity work in the narrow and pressurized environment of the cutter disc, which poses extremely high safety risks. Therefore, there is an urgent need to design a mechanical equipment to replace manual labor to complete the transportation, replacement and maintenance of parts. Summary of the Invention

[0004] Some embodiments of the present disclosure provide a cutterhead system for a tunnel construction device, an anti-collision method for a transmission component exiting a cabin, and a shield machine, which are suitable for replacement or maintenance of cutterhead components.

[0005] In one aspect of the present disclosure, a cutterhead system of a tunnel construction device is provided, comprising:

[0006] knife disc;

[0007] a cabin, provided on the cutterhead;

[0008] implementing agencies; and

[0009] A transmission assembly is arranged in the cabin, and the transmission assembly includes a primary translation platform, a rotating platform and a secondary translation platform. The primary translation platform is connected to the cabin, and the rotating platform is connected to the primary translation platform and the secondary translation platform. The actuator is arranged on the secondary translation platform. The primary translation platform is configured to send the rotating platform and the secondary translation platform out of the cabin, the rotating platform is configured to adjust the rotation angle of the secondary translation platform, and the secondary translation platform is configured to send the actuator to the working position of the cutter disc.

[0010] In some embodiments, the primary translation platform includes at least two translatable platforms.

[0011] In some embodiments, the secondary translation platform includes at least two translatable platforms.

[0012] In some embodiments, the primary translation platform comprises:

[0013] A first platform is movably connected to the cabin; and

[0014] The second platform is connected to the first platform in a translationally movable manner.

[0015] In some embodiments, the transmission assembly further comprises:

[0016] a first guide rail mechanism connecting the inner wall of the cabin and the first platform, wherein the first platform translates relative to the cabin through the first guide rail mechanism; and

[0017] The first propulsion mechanism is arranged on the inner wall of the cabin and is drivingly connected to the first platform.

[0018] In some embodiments, the transmission assembly further comprises:

[0019] a second guide rail mechanism connecting the first platform and the second platform, wherein the second platform translates relative to the first platform via the second guide rail mechanism; and

[0020] The second propulsion mechanism is provided on the first platform and is drivingly connected to the second platform.

[0021] In some embodiments, the rotating platform comprises:

[0022] third-party platforms; and

[0023] A slewing mechanism connects the third platform and the primary translation platform, and the slewing mechanism is configured to rotate the third platform relative to the primary translation platform.

[0024] In some embodiments, the secondary translation platform includes:

[0025] a fourth platform, movably connected to the rotating platform; and

[0026] The fifth platform is connected to the fourth platform in a translationally movable manner.

[0027] In some embodiments, the transmission assembly further comprises:

[0028] a third guide rail mechanism connecting the rotating platform and the fourth platform, wherein the fourth platform translates relative to the rotating platform through the third guide rail mechanism;

[0029] A first power mechanism is provided on the rotating platform;

[0030] a first gear connected to an output end of the first power mechanism; and

[0031] The first rack is provided on the fourth platform, and the first rack is engaged with the first gear.

[0032] In some embodiments, the transmission assembly further comprises:

[0033] a fourth guide rail mechanism connecting the fourth platform and the fifth platform, wherein the fifth platform is translated relative to the fourth platform via the fourth guide rail mechanism;

[0034] a second power mechanism, provided on the fifth platform;

[0035] a second gear connected to an output end of the second power mechanism; and

[0036] The second rack is provided on the fourth platform, and the second rack is engaged with the second gear.

[0037] In some embodiments, the actuator is disposed on the fifth platform.

[0038] In some embodiments, the secondary translation platform is parallel to the primary translation platform within the cabin, and the secondary translation platform is perpendicular to the primary translation platform outside the cabin.

[0039] In some embodiments, during the process in which the primary translation platform sends the rotating platform and the secondary translation platform out of the cabin, the rotating platform is configured to drive the secondary translation platform to adaptively rotate.

[0040] In one aspect of the present disclosure, a method for preventing a transmission assembly from exiting a cutterhead system of a tunnel construction device is provided, comprising:

[0041] When the primary translation platform sends the rotating platform and the secondary translation platform out of the cabin, the rotating platform drives the secondary translation platform to rotate adaptively so that the secondary translation platform does not collide with the cabin and the cutter head.

[0042] In some embodiments, the state of the secondary translation platform in the cabin is simplified to a rectangle ABCD, where points A, B, C, and D are connected in sequence, line segments AB and DC are symmetrically arranged and parallel to the longitudinal extension direction of the cabin, line segments BC and AD are symmetrically arranged, and line segment BC is closer to the cutter head than line segment AD, the center of rectangle ABCD is the simplified rotation center of the rotating platform, and a rectangular coordinate system xOy is established with the rotation center as the coordinate origin O;

[0043] The two side walls of the cabin in the longitudinal extension direction are simplified to two straight lines parallel to the y-axis. The equation of the straight line of the side wall close to the line segment AB is x=X1, and the equation of the straight line of the side wall close to the line segment DC is x=X2.

[0044] The two side walls of the channel in the cutter head for the secondary translation platform to move after leaving the cabin are simplified into two straight lines parallel to the x-axis, the equation of the straight line of the channel side wall close to the cabin body is y=Y1, and the equation of the straight line of the channel side wall away from the cabin body is y=Y2;

[0045] During the process of the primary translation platform sending the rotating platform and the secondary translation platform out of the cabin, the secondary translation platform moves along the y-axis and is driven to rotate by the rotating platform, satisfying the following relationship:

[0046] Point B′ is at a safe distance from the line y=Y2;

[0047] Point A′ is at a safe distance from the straight line x=X1;

[0048] Line segment D′C′ has a safe distance from point F;

[0049] Wherein, point B′ is the point after point B moves along the y-axis and turns with the secondary translation platform;

[0050] Point A′ is the point after point A moves along the y-axis and turns with the secondary translation platform;

[0051] Line segment D′C′ is the line segment of line segment DC after it moves along the y-axis and turns with the secondary translation platform;

[0052] Point F is the intersection of the straight line x=X2 and the straight line y=Y1;

[0053] The X1 value and the X2 value are determined according to the width of the cabin;

[0054] The Y1 value and the Y2 value are determined according to the width of the channel.

[0055] In some embodiments, point B′ is at a safe distance from line y=Y2, satisfying the following relationship:

[0056] l3cosθ+l1sinθ+y <Y2

[0057] Among them, l3 is the distance between the origin 0 and the line segment BC;

[0058] l1 is the distance between the origin 0 and the line segment AB;

[0059] θ is the rotation angle of the secondary translation platform;

[0060] y is the moving distance of the secondary translation platform along the y-axis.

[0061] In some embodiments, point A′ is at a safe distance from the line x=X1, satisfying the following relationship:

[0062] -l1cosθ-l4sinθ>X1

[0063] Where l1 is the distance between the origin 0 and the line segment AB;

[0064] θ is the rotation angle of the secondary translation platform;

[0065] l4 is the distance between the origin 0 and the line segment AD.

[0066] In some embodiments, line segment D′C′ has a safe distance from point F, satisfying the following relationship:

[0067] X2(l3+l4)cosθ+(yl3+yl4-Y1l3-Y1l4)sinθ-l2(l3+l4)>0

[0068] Among them, l3 is the distance between the origin 0 and the line segment BC;

[0069] l4 The distance between the origin 0 and the line segment AD

[0070] θ is the rotation angle of the secondary translation platform;

[0071] l2 is the distance between the origin 0 and the line segment CD;

[0072] y is the moving distance of the secondary translation platform along the y-axis.

[0073] In one aspect of the present disclosure, a shield machine is provided, comprising the cutterhead system of the tunnel construction device described above.

[0074] Based on the above technical solutions, the embodiments of the present disclosure have at least the following beneficial effects:

[0075] In some embodiments, the first-level translation platform can send the rotating platform and the second-level translation platform out of the cabin, the rotating platform can rotate the second-level translation platform to the corresponding angle according to the position of the working position, and the second-level translation platform can send the actuator to the working position of the cutter disc, and replace or repair parts through the actuator; through the cooperation of the first-level translation platform, the rotating platform and the second-level translation platform, the cabin out action can be realized, and the decoupling of multiple joints is realized, the control difficulty is greatly reduced, and the accuracy can be guaranteed; after the parts are replaced or repaired, the second-level translation platform is reset, and the rotating platform is reset. The first-level translation platform can be brought back into the cabin to avoid contact with the debris environment in the cutter disc, thereby improving the service life and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0076] The drawings described herein are used to provide a further understanding of the present disclosure and constitute a part of the present disclosure. The exemplary embodiments of the present disclosure and their descriptions are used to explain the present disclosure and do not constitute an improper limitation of the present disclosure. In the drawings:

[0077] Figure 1 A schematic diagram of a cutterhead system of a tunnel construction device according to some embodiments of the present disclosure;

[0078] Figure 2 A schematic diagram of a cabin provided according to some embodiments of the present disclosure;

[0079] Figure 3 A schematic diagram of a transmission assembly according to some embodiments of the present disclosure;

[0080] Figure 4 A schematic diagram of a first platform and a second platform provided according to some embodiments of the present disclosure;

[0081] Figure 5 A schematic diagram of a first perspective of a third platform provided according to some embodiments of the present disclosure;

[0082] Figure 6 A schematic diagram of a second viewing angle of a third platform provided according to some embodiments of the present disclosure;

[0083] Figure 7 A schematic diagram of a fourth platform provided according to some embodiments of the present disclosure;

[0084] Figure 8 is a schematic diagram of a fifth platform provided according to some embodiments of the present disclosure;

[0085] Figure 9 A schematic diagram of a first state of a cabin provided according to some embodiments of the present disclosure;

[0086] Figure 10 A schematic diagram of a second state of a cabin provided according to some embodiments of the present disclosure;

[0087] Figure 11 A schematic diagram of a third state of a cabin provided according to some embodiments of the present disclosure;

[0088] Figure 12 A schematic diagram of a fourth state of a cabin provided according to some embodiments of the present disclosure;

[0089] Figure 13 This is a simplified schematic diagram of a secondary translation platform within a cabin according to some embodiments of the present disclosure;

[0090] Figure 14 This is a simplified schematic diagram of the process of the secondary translation platform moving from the cabin to the cutter head according to some embodiments of the present disclosure.

[0091] The reference numerals in the accompanying drawings are described as follows:

[0092] 10-cutter head; 20-cabin; 201-housing; 202-rear door; 203-front door; 204-upper door; 30-actuator; 40-transmission assembly;

[0093] 1-first translation platform; 11-first platform; 12-second platform;

[0094] 2-secondary translation platform; 21-fourth platform; 22-fifth platform; 22a-installation part;

[0095] 3-rotating platform; 31-third platform; 32-rotating mechanism; 32a-first rotating member; 32b-second rotating member;

[0096] 41-first guide rail mechanism; 41a-first rail; 41b-first rail groove; 42-second guide rail mechanism; 42a-second rail; 42b-second rail groove; 43-third guide rail mechanism; 43a-third rail; 43b-third rail groove; 44-fourth guide rail mechanism; 44a-third rail; 44b-fourth rail groove;

[0097] 51-first propulsion mechanism; 52-second propulsion mechanism; 52a-fixing member;

[0098] 61-first power mechanism; 62-first gear; 63-first rack;

[0099] 71 - second power mechanism; 72 - second gear; 73 - second rack.

[0100] It should be understood that the size of each part shown in the drawings is not drawn according to the actual proportional relationship.In addition, the same or similar reference numerals represent the same or similar components. DETAILED DESCRIPTION

[0101] Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is merely illustrative and is in no way intended to limit the present disclosure, its application, or use. The present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided to make the present disclosure thorough and complete and to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that unless otherwise specifically stated, the relative arrangement of parts and steps, the composition of materials, numerical expressions, and numerical values ​​set forth in these embodiments should be interpreted as being merely exemplary and not as limiting.

[0102] The terms "first", "second" and similar terms used in this disclosure do not indicate any order, quantity or importance, but are only used to distinguish different parts. The terms "include" or "comprises" and similar terms mean that the elements before the term include the elements listed after the term, and do not exclude the possibility of also including other elements. The terms "upper", "lower", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0103] In the present disclosure, when a specific device is described as being located between a first device and a second device, an intervening device may or may not be present between the specific device and the first device or the second device. When a specific device is described as being connected to another device, the specific device may be directly connected to the other device without an intervening device, or may be not directly connected to the other device but with an intervening device.

[0104] All terms (including technical or scientific terms) used in this disclosure have the same meaning as those understood by one of ordinary skill in the art to which this disclosure belongs, unless otherwise specifically defined. It should also be understood that terms defined in, for example, general dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology, and should not be interpreted in an idealized or highly formal sense, unless explicitly defined herein.

[0105] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0106] Tunnel boring machines (TBMs) are large-scale tunnel construction equipment that primarily rely on a rotating cutterhead to cut through rock and soil for forward tunneling. During TBM construction, cutterhead tools wear and other components become damaged, necessitating periodic replacement of cutterhead tools and other components.

[0107] Based on this, an embodiment of the present disclosure provides a cutterhead system for a tunnel construction device, which can be suitable for replacement or maintenance of cutterhead components.

[0108] Figure 1 Schematic diagram of the structure of some embodiments of the cutterhead system of the tunnel construction device according to the present disclosure. Figure 1 In some embodiments, a cutterhead system of a tunnel construction device includes a cutterhead 10 , a cabin 20 , an actuator 30 , and a transmission assembly 40 .

[0109] The cabin 20 is disposed on the cutter head 10 . The transmission assembly 40 is disposed in the cabin 20 , and the actuator 30 is disposed on the transmission assembly 40 .

[0110] refer to Figure 3The transmission assembly 40 includes a primary translation platform 1, a rotating platform 3, and a secondary translation platform 2. The primary translation platform 1 is connected to the cabin 20, the rotating platform 3 connects the primary translation platform 1 and the secondary translation platform 2, and the actuator 30 is provided on the secondary translation platform 2.

[0111] The first-level translation platform 1 is configured to send the rotating platform 3 and the second-level translation platform 2 out of the cabin 20, the rotating platform 3 is configured to adjust the rotation angle of the second-level translation platform 2, and the second-level translation platform 2 is configured to send the actuator 30 to the working position of the cutter disc 10.

[0112] In the above embodiment, the first-level translation platform 1 can send the rotating platform 3 and the secondary translation platform 2 out of the cabin 20, the rotating platform 3 can rotate the secondary translation platform 2 to the corresponding angle according to the position of the working position, and the secondary translation platform 2 can send the actuator 30 to the working position of the cutter disc 10, and replace or repair parts through the actuator 30.

[0113] The disclosed embodiment can realize the cabin exit action through the cooperation of the first-level translation platform 1, the rotating platform 3 and the second-level translation platform 2, and realizes the decoupling of multiple joints, which greatly reduces the control difficulty and ensures the accuracy; after the parts are replaced or repaired, the second-level translation platform 2 is reset, the rotating platform 3 is reset, and the first-level translation platform 1 can bring the rotating platform 3 and the second-level translation platform 2 back into the cabin body 20 to avoid contact with the debris environment in the cutter disc, thereby improving the service life and reliability of the transmission assembly 40 and the actuator 30.

[0114] The disclosed embodiment solves the problem of transporting and transferring parts on the cutterhead of a tunnel construction device. It is suitable for working environments with small spaces and large ranges of motion, has strong load capacity, and can solve the problem of safety hazards in pressurized environments.

[0115] refer to Figure 2 The cabin 20 includes an outer shell 201, which is mounted on the cutterhead 10. A rear hatch 202 is located on the side of the outer shell 201 facing away from the cutterhead 10, a front hatch 203 is located on the side of the outer shell 201 facing the cutterhead 10, and an upper hatch 204 is located on the top of the outer shell 201. The rear hatch 202 and upper hatch 204 connect to the normal-pressure working environment behind the tunnel construction device, while the front hatch 203 connects to the high-pressure environment inside the cutterhead 10. The three hatches operate in conjunction with each other to allow materials and the transmission assembly 40 to enter and exit, while isolating the normal-pressure environment of the tunnel construction device from the high-pressure environment of the cutterhead.

[0116] In some embodiments, the actuator 30 includes multiple end actuators. The secondary translation platform 2 supports the installation of multiple end actuators to achieve different functions.

[0117] In some embodiments, the primary translation platform 1 includes at least two translatable platforms.

[0118] In the above embodiment, the primary translation platform 1 comprises at least two translatable platforms, which are vertically stacked to form a multi-layered platform. The multi-layered platform occupies a small space when stowed and extends a long distance when deployed. This provides the primary translation platform 1 with greater flexibility, enabling it to maneuver flexibly within confined spaces while maintaining a large arm span, enabling it to transport the rotating platform 3, the secondary translation platform 2, and the actuator 30 out of the cabin 20.

[0119] In some embodiments, the primary translation platform 1 may include two translatable platforms, three translatable platforms, four translatable platforms, or more than four translatable platforms.

[0120] In some embodiments, the secondary translation platform 2 includes at least two translatable platforms.

[0121] In the above embodiment, the secondary translation platform 2 comprises at least two translatable platforms, which are vertically stacked to form a multi-layered platform. The multi-layered platform occupies a small space when stowed and extends a long distance when unfolded. This provides the secondary translation platform 2 with greater flexibility, enabling it to maneuver flexibly within confined spaces while maintaining a large reach, enabling it to deliver the actuator 30 to the working position of the cutterhead 10.

[0122] In some embodiments, the secondary translation platform 2 may include two translatable platforms, three translatable platforms, four translatable platforms, or more than four translatable platforms.

[0123] refer to Figure 4 In some embodiments, the primary translation platform 1 includes a first platform 11 and a second platform 12 .

[0124] The first platform 11 is connected to the cabin 20 in a translationally movably manner.

[0125] The second platform 12 is connected to the first platform 11 in a translationally movably manner.

[0126] In the above embodiment, the primary translation platform 1 comprises two platforms, a first platform 11 and a second platform 12, capable of transporting the rotating platform 3, the secondary translation platform 2, and the actuator 30 out of the cabin 20. Furthermore, after component replacement or repair, the primary translation platform 1 can be reset to bring the rotating platform 3, the secondary translation platform 2, and the actuator 30 back into the cabin 20, preventing the actuator 30 and the transmission assembly 40 from contacting the soil environment within the cutterhead, thereby increasing the service life and reliability of the actuator 30 and the transmission assembly 40.

[0127] refer to Figure 4In some embodiments, the transmission assembly 40 further includes a first guide rail mechanism 41 and a first propulsion mechanism 51 .

[0128] The first guide rail mechanism 41 connects the inner wall of the cabin body 20 and the first platform 11 , and the first platform 11 translates relative to the cabin body 20 via the first guide rail mechanism 41 .

[0129] The first propulsion mechanism 51 is disposed on the inner wall of the cabin 20 and is drivingly connected to the first platform 11 .

[0130] In some embodiments, the first guide rail mechanism 41 includes a first rail 41a and a first rail groove 41b. The first rail 41a can be provided on the bottom plate of the cabin 20, and the first rail groove 41b can be provided on the first platform 11. Of course, the first rail 41a can also be the first platform 11, and correspondingly, the first rail groove 41b is provided on the bottom plate of the cabin 20. The first rail 41a and the first rail groove 41b cooperate with each other to achieve translation of the first platform 11 relative to the cabin 20.

[0131] In some embodiments, the first propulsion mechanism 51 is a linear structure, which may include a linear motor, a pneumatic cylinder, or an oil cylinder.

[0132] In the above embodiment, the relative movement between the first platform 11 and the cabin 20 is guided by the first guide rail mechanism 41. The first guide rail mechanism 41 can provide a large supporting force for the first platform 11 to meet the large load at the end. At the same time, when the first platform 11 and the second platform 12 are retracted, the multiple platforms are stacked up and down, without the cantilever structure of the multi-axis robot in the related technology, and are more reliable and stable for long-term use.

[0133] refer to Figure 4 In some embodiments, the transmission assembly 40 further includes a second guide rail mechanism 42 and a second propulsion mechanism 52 .

[0134] The second guide rail mechanism 42 connects the first platform 11 and the second platform 12 , and the second platform 12 translates relative to the first platform 11 via the second guide rail mechanism 42 .

[0135] The second propulsion mechanism 52 is disposed on the first platform 11 and is drivingly connected to the second platform 12 .

[0136] In some embodiments, the second guide rail mechanism 42 includes a second rail 42a and a second rail groove 42b. The second rail 42a is provided on the first platform 11, and the second rail groove 42b is provided on the second platform 12. Of course, the second rail 42a can also be provided on the second platform 12, and the corresponding second rail groove 42b is provided on the first platform 11. The interaction between the second rail 42a and the second rail groove 42b enables the second platform 12 to translate relative to the first platform 11.

[0137] In the above embodiment, the movement of the second platform 12 relative to the first platform 11 is guided by the second guide rail mechanism 42. The second guide rail mechanism 42 can provide a larger supporting force for the second platform 12 to meet the large load at the end. At the same time, when the first platform 11 and the second platform 12 are retracted, the multi-layer platforms are stacked up and down, without the cantilever structure of the multi-axis robot in the related technology, and are more reliable and stable for long-term use.

[0138] In some embodiments, the second propulsion mechanism 52 is a linear structure, which may include a linear motor, a pneumatic cylinder, or an oil cylinder.

[0139] In some embodiments, the second propulsion mechanism 52 is fixedly connected to the first platform 11 via a fixing member 52a.

[0140] refer to Figure 4 and Figure 5 In some embodiments, the rotating platform 3 includes a third platform 31 and a rotating mechanism 32 .

[0141] The slewing mechanism 32 connects the third platform 31 and the primary translation platform 1 , and is configured to rotate the third platform 31 relative to the primary translation platform 1 .

[0142] In some embodiments, the rotating mechanism 32 includes a first rotating member 32a and a second rotating member 32b. The first rotating member 32a is disposed on the primary translation platform 1, and the second rotating member 32b is disposed on the third platform 31. The first rotating member 32a and the second rotating member 32b cooperate with each other to realize the rotation of the third platform 31 relative to the primary translation platform 1.

[0143] In some embodiments, the primary translation platform 1 includes a first platform 11 and a second platform 12. A first rotating member 32a is provided on the second platform 12, and a second rotating member 32b is provided on the third platform 31. The first rotating member 32a and the second rotating member 32b cooperate with each other to realize the rotation of the third platform 31 relative to the second platform 12.

[0144] In the above embodiment, the rotation of the third platform 31 relative to the primary translation platform 1 is achieved through the slewing mechanism 32, which enables the actuator 30 to achieve a large range of multi-degree-of-freedom movement, so as to be suitable for the maintenance or replacement of parts at different working positions of the cutter head 10.

[0145] refer to Figure 3 In some embodiments, the secondary translation platform 2 includes a fourth platform 21 and a fifth platform 22 .

[0146] The fourth platform 21 is connected to the rotating platform 3 in a translationally movably manner.

[0147] The fifth platform 22 is connected to the fourth platform 21 in a translationally movably manner.

[0148] In the above embodiment, the secondary translation platform 2 includes the fourth platform 21 and the fifth platform 22, which are capable of transporting the actuator 30 to the working position of the cutterhead 10. The actuator 30, through the cooperation of the rotary mechanism 32 and the secondary translation platform 2, can achieve a wide range of motion with multiple degrees of freedom, allowing the actuator 30 to smoothly and accurately reach the working position of the cutterhead 10.

[0149] refer to Figure 8 In some embodiments, the fifth platform 22 is provided with a mounting portion 22a, which is used to mount the actuator 30. Optionally, the mounting portion 22a includes a flange, through which different end actuators are mounted to achieve different functions.

[0150] In some embodiments, the primary translation platform 1 includes a first platform 11 and a second platform 12 , the secondary translation platform 2 includes a fourth platform 21 and a fifth platform 22 , and the rotation platform 3 includes a third platform 31 and a rotation mechanism 32 .

[0151] The first, second, fourth, and fifth platforms 11, 12, 21, and 22 are translational joints, while the third platform 31 is a rotational joint. The first and second platforms 11, 12 are used to achieve egress. To tilt the platform ends, the third platform 31 simply rotates to the desired angle. The fourth and fifth platforms 21, 22 are then translated within the cutterhead 10 to the desired working position. This decoupling of multiple joints significantly reduces control difficulty, ensures precision, and offers high flexibility, multiple degrees of freedom, a wide range of motion, and a strong load capacity, meeting the demands of egress, work, and entry.

[0152] refer to Figure 6 and Figure 7 In some embodiments, the transmission assembly 40 further includes a third guide rail mechanism 43 , a first power mechanism 61 , a first gear 62 and a first rack 63 .

[0153] The third guide rail mechanism 43 connects the rotating platform 3 and the fourth platform 21 , and the fourth platform 21 translates relative to the rotating platform 3 via the third guide rail mechanism 43 .

[0154] The first power mechanism 61 is disposed on the rotating platform 3 .

[0155] The first gear 62 is connected to the output end of the first power mechanism 61 .

[0156] The first rack 63 is disposed on the fourth platform 21 , and the first rack 63 is engaged with the first gear 62 .

[0157] In some embodiments, the third guide rail mechanism 43 includes a third rail 43a and a third rail groove 43b. The third rail groove 43b is provided on the rotating platform 3, and the third rail 43a is provided on the fourth platform 21. Alternatively, the third rail groove 43b is provided on the fourth platform 21, and the third rail 43a is provided on the rotating platform 3. The third rail 43a and the third rail groove 43b cooperate with each other to achieve translation of the fourth platform 21 relative to the rotating platform 3.

[0158] In some embodiments, the rotating platform 3 includes a third platform 31 . The third track groove 43 b is provided on the third platform 31 , and the third track 43 a is provided on the fourth platform 21 .

[0159] In the above embodiment, the movement of the fourth platform 21 relative to the rotating platform 3 is guided by the third guide rail mechanism 43. The third guide rail mechanism 43 can provide a larger supporting force for the fourth platform 21 to meet the large load at the end. At the same time, when the fifth platform 22 is retracted relative to the fourth platform 21, the multiple platforms are stacked up and down, without the cantilever structure of the multi-axis robot in the related technology, and it is more reliable and stable for long-term use.

[0160] In some embodiments, the first power mechanism 43 includes an electric motor, a motor, or a cylinder.

[0161] In the above embodiment, the first power mechanism 61, the first gear 62 and the first rack 63 cooperate to drive the fourth platform 21 to translate relative to the rotating platform 3, which can improve the position adjustment accuracy of the fourth platform 21 and can transmit a larger torque, which is suitable for an environment with higher pressure in the cutter disc 10, and the transmission of the gear rack can make the translation of the fourth platform 21 more stable.

[0162] refer to Figure 7 and Figure 8 In some embodiments, the transmission assembly 40 further includes a fourth guide rail mechanism 44 , a second power mechanism 71 , a second gear 72 and a second rack 73 .

[0163] The fourth guide rail mechanism 44 connects the fourth platform 21 and the fifth platform 22 , and the fifth platform 22 translates relative to the fourth platform 21 through the fourth guide rail mechanism 44 .

[0164] The second power mechanism 71 is disposed on the fifth platform 22 .

[0165] The second gear 72 is connected to the output end of the second power mechanism 71 .

[0166] The second rack 73 is disposed on the fourth platform 21 , and the second rack 73 is engaged with the second gear 72 .

[0167] In some embodiments, the fourth guide rail mechanism 44 includes a fourth rail 44a and a fourth rail groove 44b. The fourth rail groove 44b is provided on the fifth platform 22, and the fourth rail 44a is provided on the fourth platform 21. Alternatively, the fourth rail groove 44b is provided on the fourth platform 21, and the fourth rail 44a is provided on the fifth platform 22. The fourth rail 44a and the fourth rail groove 44b cooperate with each other to achieve translation of the fifth platform 22 relative to the fourth platform 21.

[0168] In the above embodiment, the movement of the fifth platform 22 relative to the fourth platform 21 is guided by the fourth guide rail mechanism 44. The fourth guide rail mechanism 44 can provide a larger supporting force for the fifth platform 22 to meet the large load at the end. At the same time, when the fifth platform 22 is retracted relative to the fourth platform 21, the multiple platforms are stacked up and down, without the cantilever structure of the multi-axis robot in the related technology, and it is more reliable and stable for long-term use.

[0169] In some embodiments, the second power mechanism 71 includes an electric motor, a motor, or a cylinder.

[0170] In the above embodiment, the second power mechanism 71, the second gear 72 and the second rack 73 cooperate to drive the fifth platform 22 to translate relative to the fourth platform 21, which can improve the position adjustment accuracy of the fifth platform 22 and can transmit a larger torque, which is suitable for an environment with higher pressure in the cutter disc 10, and the transmission of the gear rack can make the translation of the fifth platform 22 more stable.

[0171] In some embodiments, the actuator 30 is disposed on the fifth platform 22 .

[0172] In some embodiments, the secondary translation platform 2 is parallel to the primary translation platform 1 inside the cabin 20 , and the secondary translation platform 2 is perpendicular to the primary translation platform 1 outside the cabin 20 .

[0173] In some embodiments, during the process of the primary translation platform 1 sending the rotating platform 3 and the secondary translation platform 2 out of the cabin 20, the rotating platform 3 is configured to drive the secondary translation platform 2 to adaptively rotate so that the secondary translation platform 2 does not collide with the cabin 20 and the cutter disc 10.

[0174] After the secondary translation platform 2 is sent out of the cabin 20 , the secondary translation platform 2 is perpendicular to the primary translation platform 1 .

[0175] In some embodiments, the transmission assembly 40 in the cabin 20 includes three states.

[0176] refer to Figure 9 Parking state: Under normal circumstances, the transmission assembly 40 does not work and is parked inside the cabin 20, and the doors of the cabin 20 are closed.

[0177] refer to Figure 10, Material loading and unloading status: When new materials need to be put in or old materials need to be taken out, or the transmission component 40 needs to enter the cutter head 10 for maintenance, the front door 203 can be closed and the rear door 202 or the upper door 204 can be opened.

[0178] refer to Figure 11 and Figure 12 The transmission component 40 is in the out-of-cabin working state: the rear door 202 and the upper door 204 are closed, the front door 203 is opened, the first-level translation platform 1 sends the second-level translation platform 2 out of the front door 203, and the actuator 30 carries out a series of work such as maintenance and inspection.

[0179] In the disclosed embodiment, the cabin 20 and the transmission assembly 40 can achieve a large range of movement in a small space to meet different application environments, and can work in a pressurized environment, reducing manual work and improving work efficiency.

[0180] The following combination Figures 1 to 8 Some specific embodiments of the cutterhead system of a tunnel construction device are described in detail.

[0181] refer to Figure 1 The cutterhead system of the tunnel construction device includes a cutterhead 10, a cabin 20, an actuator 30 and a transmission assembly 40.

[0182] refer to Figure 2 The housing 20 includes an outer shell 201, which is disposed on the cutterhead 10. A rear hatch 202 is disposed on the side of the outer shell 201 away from the cutterhead 10, a front hatch 203 is disposed on the side of the outer shell 201 close to the cutterhead 10, and an upper hatch 204 is disposed on the top of the outer shell 201. The first track 41a of the first guide rail mechanism 4 and a fixing member for fixing the first propulsion mechanism 51 are disposed within the outer shell 201.

[0183] The rear hatch 202 and upper hatch 204 connect to the normal pressure environment behind the tunnel boring machine, and materials can be transported through these two hatches. The front hatch 203 connects to the high-pressure environment inside the tunnel boring machine cutter head. When the front hatch 203 is opened, it provides conditions for the movement component 40 to exit the cabin.

[0184] The first track 41a is fixedly arranged at the bottom of the outer shell 201, and the first-level translation platform 1 can slide on the first track 41a; the fixing member connects the outer shell 201 and the first propulsion mechanism 51, and provides a reverse thrust for the movement of the first-level translation platform 1.

[0185] refer to Figure 3The transmission assembly 40 in the cabin 20 includes a primary translation platform 1, a secondary translation platform 2, and a rotation platform 3. The primary translation platform 1 includes a first platform 11 and a second platform 12. The rotation platform 3 includes a third platform 31. The secondary translation platform 2 includes a fourth platform 21 and a fifth platform 22.

[0186] Among them, the first platform 11 is installed on the first track 41a of the cabin 20 and can perform translational movement; the second platform 12 is installed on the first platform 11 and performs translational movement; the third platform 31 is installed on the second platform 12 and performs rotational movement; the fourth platform 21 is installed on the third platform 31 and performs translational movement; the fifth platform 22 is installed on the fourth platform 21 and performs translational movement, and an actuator 30 can be installed above the fifth platform 22 to perform different work contents.

[0187] refer to Figure 4 The first platform 11 engages with the first track 41a in the cabin 20 through a first track groove 41b provided at the bottom, allowing it to move back and forth on the track. The first propulsion mechanism 51 provides thrust for the movement. The fixing member 11 is fixed to the first platform 11 and connected to the second platform 12, providing reverse thrust for the second platform 12. The second guide rail mechanism 42 provides support for the movement of the second platform 12. Above the second platform 12 is the first rotating member 32a of the rotating mechanism 32, which provides rotational motion for the third platform 31.

[0188] refer to Figure 5 The bottom of the third platform 31 is provided with a second rotating member 32b of the rotating mechanism 32. The second rotating member 32b cooperates with the first rotating member 32a to allow the third platform 31 to rotate.

[0189] refer to Figure 6 The third platform 31 is provided with a third track groove 43b of the third guide rail mechanism 43 on the top. The third platform 31 is also provided with a first power mechanism 61 and a first gear 62 , and the first gear 62 is connected to the output end of the first power mechanism 61 .

[0190] refer to Figure 7 The third track 43a of the third guide rail mechanism 43 is provided at the bottom of the fourth platform 21. The third track 43a cooperates with the third track groove 43b to enable the fourth platform 21 to translate relative to the third platform 31. The fourth track 44a of the fourth guide rail mechanism 44, the first rack 63, and the second rack 73 are provided at the top of the fourth platform 21. The first rack 63 meshes with the first gear 62 to provide translational force for the fourth platform 21.

[0191] refer to Figure 8The bottom of the fifth platform 22 is provided with a fourth track groove 44b of the fourth guide rail mechanism 44. The fourth track groove 44b cooperates with the fourth track 44a to enable translation of the fifth platform 22 relative to the fourth platform 21. The fifth platform 22 is also provided with a second power mechanism 71 and a second gear 72. The second gear 72 is located at the output end of the second power mechanism 71 and meshes with the second rack 73 to provide translational force for the fifth platform 22. The fifth platform 22 is provided with a mounting portion 22a, on which various actuators 30 are mounted to meet different working requirements.

[0192] Some embodiments of the present disclosure further provide a method for preventing a transmission assembly from exiting a cutterhead system of the tunnel construction device, the method comprising:

[0193] When the primary translation platform 1 sends the rotating platform 3 and the secondary translation platform 2 out of the cabin 20 , the rotating platform 3 drives the secondary translation platform 2 to rotate adaptively so that the secondary translation platform 2 does not collide with the cabin 20 and the cutter head 10 .

[0194] refer to Figure 13 In some embodiments, the state of the secondary translation platform 2 in the cabin 20 is simplified to a rectangle ABCD, where points A, B, C, and D are connected in sequence, line segments AB and DC are symmetrically arranged and parallel to the length extension direction of the cabin 20, line segments BC and AD are symmetrically arranged, and line segment BC is closer to the cutter head 10 relative to line segment AD, and the center of rectangle ABCD is the simplified rotation center of the rotating platform 3, and a rectangular coordinate system xOy is established with the rotation center as the coordinate origin 0.

[0195] The two side walls of the cabin body 20 in the longitudinal extension direction are simplified into two straight lines parallel to the y-axis. The equation of the straight line of the side wall close to the line segment AB is x=X1, and the equation of the straight line of the side wall close to the line segment DC is x=X2.

[0196] The cutter head 10 has a channel for the secondary translation platform 2 to move after leaving the cabin (the channel can be a virtual space for the secondary translation platform 2 to translate). The two side walls of the channel are simplified into two straight lines parallel to the x-axis. The straight line equation of the channel side wall close to the cabin body 20 is y=Y1, and the straight line equation of the channel side wall away from the cabin body 20 is y=Y2.

[0197] refer to Figure 14 , when the primary translation platform 1 sends the rotating platform 3 and the secondary translation platform 2 out of the cabin 20, the secondary translation platform 2 moves along the y-axis and is driven to rotate by the rotating platform 3, satisfying the following relationship:

[0198] Point B′ is at a safe distance from the line y=Y2;

[0199] Point A′ is at a safe distance from the straight line x=X1;

[0200] Line segment D′C′ is at a safe distance from point F.

[0201] Among them, point B′ is the point after point B moves and rotates along the y-axis with the secondary translation platform 2;

[0202] Point A′ is the point after point A moves and rotates along the y-axis with the secondary translation platform 2;

[0203] Line segment D′C′ is the line segment of line segment DC after it moves along the y-axis and turns along with the secondary translation platform 2 .

[0204] Point F is the intersection of the straight line x=X2 and the straight line y=Y1; the secondary translation platform 2 rotates in the direction of the straight line x=X2.

[0205] The values ​​of X1 and X2 are determined according to the width of the cabin 20. The width of the cabin 20 refers to the distance between the two side walls of the cabin 20 along the longitudinal extension direction.

[0206] The Y1 and Y2 values ​​are determined based on the channel width, which is the distance between the two side walls of the channel.

[0207] In some embodiments, point B′ is at a safe distance from line y=Y2, satisfying the following relationship:

[0208] l3cosθ+l1sinθ+y <Y2

[0209] Among them, l3 is the distance between the origin 0 and the line segment BC;

[0210] l1 is the distance between the origin 0 and the line segment AB;

[0211] θ is the rotation angle of the secondary translation platform;

[0212] y is the moving distance of the secondary translation platform along the y-axis.

[0213] In some embodiments, point A′ is at a safe distance from the line x=X1, satisfying the following relationship:

[0214] -l1cosθ-l4sinθ>X1

[0215] Where l1 is the distance between the origin 0 and the line segment AB;

[0216] θ is the rotation angle of the secondary translation platform;

[0217] l4 is the distance between the origin 0 and the line segment AD.

[0218] In some embodiments, line segment D′C′ has a safe distance from point F, satisfying the following relationship:

[0219] X2(l3+l4)cosθ+(yl3+yl4-Y1l3-Y1l4)sinθ-l2(l3+l4)>0

[0220] Among them, l3 is the distance between the origin 0 and the line segment BC;

[0221] l4 The distance between the origin 0 and the line segment AD

[0222] θ is the rotation angle of the secondary translation platform;

[0223] l2 is the distance between the origin 0 and the line segment CD;

[0224] y is the moving distance of the secondary translation platform 2 along the y axis.

[0225] In some embodiments, the relationship between the joint motion angle and position of the transmission assembly 40 when exiting the cabin is limited to ensure that the transmission assembly 40 does not collide or interfere with the cabin body 20 and the cutter head 10 during the process of exiting the cabin.

[0226] refer to Figure 13 The motion platforms are simplified to form a two-dimensional model for ease of calculation. The first and second platforms 11 and 12 only perform translational motion in the direction of exiting the cabin, and their motion directions are parallel, which can be simplified to a single degree of freedom. The third platform 31 performs rotational motion, while the fourth and fifth platforms 21 and 22 remain stationary during exiting the cabin. Together with the third platform 31, they can be simplified to form a rectangle ABCD in a top view.

[0227] Rectangle ABCD represents the simplified model of third platform 31, fourth platform 21, and fifth platform 22, and point 0 represents the rotation center of third platform 31. When the platforms are within cabin 20, establish a rectangular coordinate system x0y with the rotation center as origin 0. When the platforms rotate by angle θ, rectangle ABCD translates upward by a distance y (the coordinates of point 0' are (0, y)). Find the relationship between θ and y.

[0228] vector

[0229] vector

[0230] Then the vector

[0231] Given point O′(0, y);

[0232] Then the coordinates of point B' are:

[0233]

[0234] vector

[0235] Then the coordinates of point A′ are:

[0236]

[0237] vector

[0238] Then the coordinates of point C′ are:

[0239]

[0240] vector

[0241] Then the coordinates of point D′ are:

[0242]

[0243] Point F is the corner on the right side of the cabin, with coordinates F(X2, Y1);

[0244] vector The coordinates are:

[0245]

[0246] vector The coordinates are:

[0247]

[0248] When the platform leaves the cabin, point B' is below the straight line y = Y2, then B'y <Y2,即

[0249] l3cosθ+l1sinθ+y <Y2 (7)

[0250] Point A' is on the right side of the straight line x = X1, then A'x>X1, that is

[0251] -l1cosθ-l4sinθ>X1 (8)

[0252] Point F is to the right of line D′C′, then Substitute (5) and (6) into:

[0253] (X2-l2cosθ+l4sinθ)(l3cosθ+l4cosθ)-(Y1+l2sinθ+l4cosθ

[0254] -y)(l3sinθ+l4sinθ)>0

[0255] After simplification, we get:

[0256] X2(l3+l4)cosθ+(yl3+yl4-Y1l3-Y1l4)sinθ-l2(l3+l4)>0 (9)

[0258] In summary, when formulae (7), (8) and (9) are satisfied, the motion platform can be guaranteed not to collide with the cabin and the cutter head, and the egress and ingress actions can be completed. That is:

[0259]

[0260] wherein, l1 is the distance between the origin 0 and the line segment AB; l2 is the distance between the origin 0 and the line segment CD; l3 is the distance between the origin 0 and the line segment BC; l4 is the distance between the origin 0 and the line segment AD; θ is the rotation angle of the secondary translation platform 2; and y is the moving distance of the secondary translation platform 2 along the y axis.

[0261] Some embodiments of the present disclosure also provide a tunnel construction device, which comprises the cutter head system of the tunnel construction device of any one of the above embodiments.

[0262] Based on the above embodiments of the present disclosure, one technical feature of one embodiment can be beneficially combined with one or more other embodiments, without explicit negation or conflict.

[0263] Although some specific embodiments of the present disclosure have been described in detail through examples, those skilled in the art should understand that the above examples are only for illustration, and are not intended to limit the scope of the present disclosure. Those skilled in the art should understand that the above embodiments can be modified or some technical features can be replaced equivalently without departing from the scope and spirit of the present disclosure. The scope of the present disclosure is defined by the appended claims.

Claims

1. A cutterhead system for a tunnel construction device, characterized in that: include: Knife plate (10); A cabin (20) is provided on the cutter head (10); Executive Body (30); and A transmission assembly (40) is provided in the cabin (20), the transmission assembly (40) comprises a primary translation platform (1), a rotating platform (3) and a secondary translation platform (2), the primary translation platform (1) is connected to the cabin (20), the rotating platform (3) is connected to the primary translation platform (1) and the secondary translation platform (2), the actuator (30) is provided on the secondary translation platform (2), the primary translation platform (1) is configured to send the rotating platform (3) and the secondary translation platform (2) out of the cabin (20), the rotating platform (3) is configured to adjust the rotation angle of the secondary translation platform (2), and the secondary translation platform (2) is configured to send the actuator (30) to the working position of the cutter head (10); The secondary translation platform (2) is parallel to the primary translation platform (1) inside the cabin (20), and the secondary translation platform (2) is perpendicular to the primary translation platform (1) outside the cabin (20); During the process of the primary translation platform (1) sending the rotating platform (3) and the secondary translation platform (2) out of the cabin (20), the rotating platform (3) is configured to drive the secondary translation platform (2) to rotate adaptively.

2. The cutterhead system of the tunnel construction device according to claim 1, characterized in that: The primary translation platform (1) comprises at least two translationally movable platforms.

3. The cutterhead system of the tunnel construction device according to claim 1 or 2, characterized in that: The secondary translation platform (2) comprises at least two translationally movable platforms.

4. The cutterhead system of the tunnel construction device according to claim 1, characterized in that: The primary translation platform (1) comprises: A first platform (11) is movably connected to the cabin (20); and The second platform (12) is connected to the first platform (11) in a translationally movable manner.

5. The cutterhead system of the tunnel construction device according to claim 4, characterized in that: The transmission assembly (40) further includes: a first guide rail mechanism (41) connecting the inner wall of the cabin (20) and the first platform (11), wherein the first platform (11) moves relative to the cabin (20) via the first guide rail mechanism (41); and A first propulsion mechanism (51) is provided on the inner wall of the cabin (20) and is drivingly connected to the first platform (11).

6. The cutterhead system of the tunnel construction device according to claim 4 or 5, characterized in that: The transmission assembly (40) further includes: a second guide rail mechanism (42) connecting the first platform (11) and the second platform (12), wherein the second platform (12) moves in translation relative to the first platform (11) via the second guide rail mechanism (42); and The second propulsion mechanism (52) is provided on the first platform (11) and is drivingly connected to the second platform (12).

7. The cutterhead system of the tunnel construction device according to claim 1, characterized in that: The rotating platform (3) comprises: The third platform (31); and A slewing mechanism (32) connects the third platform (31) and the primary translation platform (1), and the slewing mechanism (32) is configured to rotate the third platform (31) relative to the primary translation platform (1).

8. The cutterhead system of the tunnel construction device according to claim 1, characterized in that: The secondary translation platform (2) comprises: a fourth platform (21) movably connected to the rotating platform (3); and The fifth platform (22) is connected to the fourth platform (21) in a translationally movable manner.

9. The cutterhead system of the tunnel construction device according to claim 8, characterized in that: The transmission assembly (40) further includes: A third guide rail mechanism (43) connects the rotating platform (3) and the fourth platform (21), and the fourth platform (21) moves relative to the rotating platform (3) through the third guide rail mechanism (43); A first power mechanism (61) is provided on the rotating platform (3); a first gear (62) connected to the output end of the first power mechanism (61); and A first rack (63) is provided on the fourth platform (21), and the first rack (63) is meshed with the first gear (62).

10. The cutterhead system of the tunnel construction device according to claim 8 or 9, characterized in that: The transmission assembly (40) further includes: a fourth guide rail mechanism (44) connecting the fourth platform (21) and the fifth platform (22), wherein the fifth platform (22) moves in translation relative to the fourth platform (21) via the fourth guide rail mechanism (44); A second power mechanism (71) is provided on the fifth platform (22); a second gear (72) connected to the output end of the second power mechanism (71); and The second rack (73) is provided on the fourth platform (21), and the second rack (73) is meshed with the second gear (72).

11. The cutterhead system of the tunnel construction device according to claim 8 or 9, characterized in that: The actuator (30) is provided on the fifth platform (22).

12. A method for preventing a transmission component from exiting a cabin in a cutterhead system of a tunnel construction device according to any one of claims 1 to 11, characterized in that: include: During the process of the primary translation platform (1) sending the rotating platform (3) and the secondary translation platform (2) out of the cabin (20), the rotating platform (3) drives the secondary translation platform (2) to rotate adaptively, so that the secondary translation platform (2) does not collide with the cabin (20) and the cutter head (10).

13. The method for preventing a transmission component from exiting a cutterhead system of a tunnel construction device according to claim 12, wherein: The state of the secondary translation platform (2) in the cabin (20) is simplified into a rectangle ABCD, wherein points A, B, C, and D are connected in sequence, line segments AB and DC are symmetrically arranged and parallel to the length extension direction of the cabin (20), line segments BC and AD are symmetrically arranged, and line segment BC is closer to the cutter head (10) relative to line segment AD, and the center of rectangle ABCD is the rotation center of the simplified rotation platform (3), and a rectangular coordinate system xOy is established with the rotation center as the coordinate origin O; The two side walls of the cabin (20) in the longitudinal extension direction are simplified to two straight lines parallel to the y-axis, the straight line equation of the side wall close to the line segment AB is x=X1, and the straight line equation of the side wall close to the line segment DC is x=X2; The two side walls of the channel in the cutter head (10) for the secondary translation platform (2) to move after exiting the cabin are simplified into two straight lines parallel to the x-axis, the equation of the straight line of the channel side wall close to the cabin body (20) is y=Y1, and the equation of the straight line of the channel side wall away from the cabin body (20) is y=Y2; During the process in which the primary translation platform (1) sends the rotating platform (3) and the secondary translation platform (2) out of the cabin (20), the secondary translation platform (2) moves along the y-axis and is driven to rotate by the rotating platform (3), satisfying the following relationship: Point and Line Keep a safe distance; Point and Line Keep a safe distance; Line segment A safe distance from point F; in, Point B is the point after point B moves along the y-axis and turns along with the secondary translation platform (2); Point A is the point after point A moves along the y-axis and turns along with the secondary translation platform (2); Line segment The line segment DC is the line segment after it moves along the y-axis and turns along with the secondary translation platform (2); Point F is the intersection of the straight line x=X2 and the straight line y=Y1; The X1 value and the X2 value are determined according to the width of the cabin (20); The Y1 value and the Y2 value are determined according to the width of the channel.

14. The method for preventing a transmission component from exiting a cutterhead system of a tunnel construction device according to claim 13, wherein: Point and Line With a safe distance, the following relationship is satisfied: in, is the distance between the origin O and the line segment BC; is the distance between the origin O and the line segment AB; is the rotation angle of the secondary translation platform (2); is the moving distance of the secondary translation platform (2) along the y-axis.

15. The method for preventing a transmission component from exiting a cutterhead system of a tunnel construction device according to claim 13, wherein: Point and Line With a safe distance, the following relationship is satisfied; in, is the distance between the origin O and the line segment AB; is the rotation angle of the secondary translation platform (2); is the distance between the origin O and line segment AD.

16. The method for preventing a transmission component from exiting a cutterhead system of a tunnel construction device according to claim 13, wherein: Line segment There is a safe distance from point F, satisfying the following relationship: in, is the distance between the origin O and the line segment BC; The distance between the origin O and the line segment AD is the rotation angle of the secondary translation platform (2); is the distance between the origin O and line segment CD; is the moving distance of the secondary translation platform (2) along the y-axis.

17. A shield machine, characterized in that: A cutterhead system comprising the tunnel construction device according to any one of claims 1 to 11.

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