TBM (Tunnel Boring Machine) main beam supporting and propelling device capable of tightly supporting tunnel wall in multiple directions

Abstract

The invention relates to the technical field of open-type TBMs, in particular to a TBM main beam supporting and propelling device capable of tightly supporting a tunnel wall in multiple directions, which comprises a main beam, a saddle frame, a rear support, a first supporting shoe, a first telescopic driver and a first propeller, the saddle frame is mounted on the main beam; the main beam penetrates out of the interior of the saddle frame and then is connected with the rear support; the first telescopic driver is arranged on the saddle frame; the first supporting shoe is arranged on the upper side or the lower side of the saddle frame; the first telescopic driver is connected with the first supporting shoe so as to drive the first supporting shoe to ascend and descend in the vertical direction. One end of the first propeller is hinged with the main beam, and the other end is connected with the saddle; the first propeller can drive the saddle frame to move in the transverse direction. The first supporting shoe is arranged on the upper side or the lower side of the saddle, tunneling pushing force is applied through the top face and the bottom face of the tunnel wall, the distance between the left side and the right side of the tunnel wall can be ignored, the supporting device can well adapt to the working condition of local collapse of the left tunnel wall and the right tunnel wall or secondary starting of a Y-shaped tunnel, and the supporting strength of the first supporting shoe and the tunnel wall is effectively guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of open TBM, and in particular to a TBM main beam supporting and propulsion device capable of supporting a tunnel wall in multiple directions. Background Art

[0002] Full-face rock tunnel boring machines (TBMs) are widely used due to their high construction efficiency, safety and environmental protection, high degree of mechanization, and low labor intensity. In the field of hard rock tunnels, open-type TBMs are widely used due to their faster excavation speed, flexible initial support and advance processing methods, and lower overall cost. The open-type TBM mainly relies on the main beam support propulsion system to provide propulsion power, and the main push cylinder propulsion to provide forward power. The left and right support shoes hold the tunnel wall tightly to provide reaction force for the main machine excavation. Therefore, if the support shoes of the main beam support propulsion system cannot hold the tunnel wall tightly, the entire equipment will not be able to advance normally.

[0003] At present, the support shoes on almost all open-type TBM main beam support and propulsion devices are arranged symmetrically on the left and right. If the left and right tunnel walls collapse locally, or if the Y-shaped tunnel is started for the second time, the support shoes arranged on the left and right will lose their function. Among them, when the TBM method is used to construct a Y-shaped tunnel, after the first tunnel is excavated, the TBM main beam support and propulsion device needs to be withdrawn to the intersection of the Y-shaped tunnel, that is, the main tunnel, and then the second tunnel on the other side of the main tunnel is excavated for the second time. Since the first tunnel has been excavated at the main tunnel, it will be difficult for the support shoes to support the tunnel wall when the second tunnel is started. This is because the TBM main beam support and propulsion device needs to adjust the axial direction of the main beam to the excavation direction of the second tunnel. Therefore, the support shoes set on the left or right side of the main beam will extend into the first tunnel and support the air. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a TBM main beam supporting and propulsion device which can support the tunnel wall in multiple directions, which solves the technical problem that the supporting shoes of the existing TBM main beam supporting and propulsion device have poor supporting strength when the left and right tunnel walls partially collapse or encounter a secondary start of a Y-shaped tunnel.

[0006] (II) Technical solution

[0007] In order to achieve the above-mentioned object, the TBM main beam support and propulsion device capable of tightening the tunnel wall in multiple directions of the present invention comprises a main beam, a saddle frame, a rear support, a first support shoe, a first telescopic driver and a first propeller;

[0008] The saddle frame is installed on the main beam; the main beam passes through the interior of the saddle frame and is connected to the rear support;

[0009] The first telescopic driver is arranged on the saddle frame; the first support shoe is arranged on the upper side or the lower side of the saddle frame; the first telescopic driver is connected to the first support shoe so as to be able to drive the first support shoe to rise and fall vertically;

[0010] One end of the first propeller is hinged to the main beam, and the other end is connected to the saddle frame; the first propeller can drive the saddle frame to move laterally.

[0011] Optionally, a pair of the first support shoes are arranged on the upper and lower sides of the saddle frame in a one-to-one correspondence;

[0012] Two ends of the first telescopic actuator are connected to a pair of the first gripping shoes in a one-to-one correspondence; or a pair of the first telescopic actuators are connected to a pair of the first gripping shoes in a one-to-one correspondence.

[0013] Optionally, the saddle frame comprises an upper square frame, a middle square frame and a lower square frame connected in sequence;

[0014] A pair of mirror-image first support shoes are disposed at the top of the upper square frame and the top of the lower square frame;

[0015] The first propellers are arranged at the four corners of the saddle frame.

[0016] Optionally, a support hole is opened inside the middle square frame; the main beam passes through the support hole, and the two are connected by sliding in a transverse direction;

[0017] Corner clamping strips are correspondingly arranged at the four corners of the support hole; L-shaped clamping grooves are correspondingly opened at the four corners of the main beam; the corner clamping strips are connected to the L-shaped clamping grooves in a transverse sliding manner.

[0018] Optionally, an upper crossbeam of the upper square frame is disposed above the support hole; and a lower crossbeam of the lower square frame is disposed below the support hole.

[0019] A pair of the first thrusters are connected to the middle portion of the upper beam and the middle portion of the lower beam in a one-to-one correspondence.

[0020] Optionally, the TBM main beam support propulsion device further comprises a second telescopic drive, a pair of second grippers and a pair of second thrusters;

[0021] A pair of the second grippers are arranged on the left and right sides of the saddle frame in a one-to-one correspondence; the second telescopic driver is arranged inside the saddle frame along the longitudinal direction; and both ends of the second telescopic driver are connected to the pair of the second grippers in a one-to-one correspondence;

[0022] One end of the second propeller is hinged to the main beam, and the other end is hinged to the second support shoe; a pair of the second propellers are arranged on the left and right sides of the main beam in a one-to-one correspondence.

[0023] Optionally, an upper top plate is provided on a surface of the upper square frame facing the second support shoe;

[0024] The top end of the upper top plate can abut against the bottom surface of the first support shoe; the bottom end of the upper top plate is provided with an air avoidance groove, and the second telescopic driver passes through the air avoidance groove;

[0025] A lower top plate is arranged on a surface of the lower square frame facing the second support shoe; the upper top plate and the lower top plate are arranged in a mirror image.

[0026] Optionally, the rear support comprises a frame, legs, a support drive and a steering drive;

[0027] The frame is arranged above the legs;

[0028] One end of the support driver is hinged to the frame, and the other end is connected to the support leg; the support driver can drive the support leg to rise and fall vertically;

[0029] The steering drive is arranged in the longitudinal direction; one end of the steering drive is hinged to the frame, and the other end is hinged to the supporting leg, so as to be able to drive the main beam to turn to the left or right side of itself.

[0030] Optionally, the legs include a connecting beam and a pair of legs;

[0031] A pair of the supporting legs are arranged one by one on both sides of the bottom end of the connecting beam; a pair of the supporting drivers are arranged one by one on the left and right sides of the frame; the supporting driver is connected to the connecting beam, or the supporting driver passes through the connecting beam and is connected to the supporting legs;

[0032] The direction-adjusting driver is hinged to the connecting beam; a pair of the direction-adjusting drivers are arranged on the front and rear sides of the connecting beam in a one-to-one correspondence.

[0033] Optionally, the rear support further comprises a guide plate arranged on the inner side of a pair of the supporting legs; the guide plate is arranged at the bottom end of the frame; the guide plate passes through the connecting beam, and the two are connected by longitudinal sliding.

[0034] (III) Beneficial effects

[0035] The beneficial effects of the present invention are:

[0036] The first telescopic driver is connected to the first support shoe so as to be able to drive the first support shoe to rise and fall vertically, thereby supporting the top and bottom surfaces of the tunnel wall (tunnel), and fixing the TBM main beam support propulsion device through the top and bottom surfaces of the tunnel wall, so that when the first propeller is extended, the top and bottom surfaces of the tunnel wall can exert an axial reaction force on the main beam to provide the main machine with a driving force for excavation. Compared with the traditional method of setting support shoes on the left and right sides of the saddle frame, the present invention sets the first support shoe on the upper or lower side of the saddle frame, and exerts a driving force for excavation through the top and bottom surfaces of the tunnel wall, so that the spacing between the left and right sides of the tunnel wall can be ignored, and it can well adapt to the working conditions of partial collapse of the left and right tunnel walls or secondary starting of the Y-shaped tunnel, effectively ensuring the top support strength of the first support shoe and the tunnel wall, and improving the stability of the main machine's driving force for excavation. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a structural schematic diagram of a TBM main beam support propulsion device capable of supporting the tunnel wall in multiple directions according to the present invention;

[0038] Figure 2 It is a front view of the TBM main beam supporting propulsion device capable of supporting the tunnel wall in multiple directions according to the present invention;

[0039] Figure 3 A front view of a saddle frame of the present invention;

[0040] Figure 4 is a side view of a saddle frame of the present invention;

[0041] Figure 5 It is a structural schematic diagram of the rear support of the present invention;

[0042] Figure 6 It is a side view of the rear support of the present invention.

[0043] [Description of Reference Numerals]

[0044] 1: Main beam; 11: L-shaped slot;

[0045] 2: saddle frame; 21: upper square frame; 211: upper crossbeam; 212: upper top plate; 2121: avoidance groove; 22: middle square frame; 221: support hole; 222: corner clip; 23: lower square frame; 231: lower crossbeam; 232: lower top plate;

[0046] 3: rear support; 31: frame; 32: support leg; 321: connecting beam; 322: support foot; 33: support drive; 34: adjustment drive; 35: guide plate;

[0047] 4: First support boot;

[0048] 5: first telescopic actuator;

[0049] 6: first thruster;

[0050] 7: second telescopic drive;

[0051] 8: Second support boot;

[0052] 9: Second thruster. DETAILED DESCRIPTION

[0053] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below through specific implementation modes in conjunction with the accompanying drawings.

[0054] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0055] In addition, in the present invention, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0056] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; "connection" can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0057] In the first embodiment, see Figure 1 and Figure 2The present invention provides a TBM main beam support propulsion device that can tighten the tunnel wall in multiple directions. The TBM main beam support propulsion device includes a main beam 1, a saddle frame 2, a rear support 3, a first support shoe 4, a first telescopic driver 5 and a first propeller 6; the saddle frame 2 is installed on the main beam 1; the main beam 1 passes through the interior of the saddle frame 2 and is connected to the rear support 3; the first telescopic driver 5 is arranged on the saddle frame 2; the first support shoe 4 is arranged on the upper side or the lower side of the saddle frame 2; the first telescopic driver 5 is connected to the first support shoe 4 to be able to drive the first support shoe 4 to rise and fall vertically; one end of the first propeller 6 is hinged to the main beam 1, and the other end is connected to the saddle frame 2; the first propeller 6 can drive the saddle frame 2 to move horizontally. Among them, the horizontal direction is the axial direction of the main beam 1, that is, the front-back direction; the longitudinal direction is the axial direction of the second telescopic driver 7, that is, the left-right direction; the vertical direction is the axial direction of the support driver 33, that is, the up-down direction.

[0058] The front end of the main beam 1 is connected to the main drive of the main machine to transmit the propulsion force to the cutterhead in front. At the same time, the main beam 1 also serves as a support bracket for the entire TBM main beam support propulsion device. The rear support 3 is installed at the tail of the main beam 1 and connected to the main beam 1 by bolts. The rear support 3 cooperates with the saddle frame 2 to support the main beam 1. The telescopic drive and propeller of the present invention can be selected from cylinders, hydraulic cylinders or electric push rods.

[0059] The first telescopic driver 5 is connected to the first support shoe 4 so as to be able to drive the first support shoe 4 to rise and fall vertically, thereby supporting the top and bottom surfaces of the tunnel wall (tunnel), and fixing the TBM main beam support propulsion device through the top and bottom surfaces of the tunnel wall, so that when the first propeller 6 is extended, the top and bottom surfaces of the tunnel wall can exert an axial reaction force on the main beam 1 to provide the main machine with a driving force for excavation. Compared with the traditional method of setting support shoes on the left and right sides of the saddle frame, the present invention sets the first support shoe 4 on the upper or lower side of the saddle frame 2, and exerts a driving force for excavation through the top and bottom surfaces of the tunnel wall, so that the distance between the left and right sides of the tunnel wall can be ignored, and it can well adapt to the working conditions of partial collapse of the left and right tunnel walls or secondary starting of the Y-shaped tunnel, effectively ensuring the top support strength of the first support shoe 4 and the tunnel wall, and improving the stability of the main machine's driving force for excavation.

[0060] In the second embodiment, a pair of first grippers 4 are arranged on the upper and lower sides of the saddle frame 2 in a one-to-one correspondence, and can be arranged at the center position of the top and bottom of the saddle frame 2 to improve the stability of the top support; the two ends of the first telescopic driver 5 are connected to the pair of first grippers 4 in a one-to-one correspondence; or a pair of first telescopic drivers 5 are connected to the pair of first grippers 4 in a one-to-one correspondence. In this embodiment, the first grippers 4 are arranged on the upper and lower sides of the saddle frame 2 to improve the flexibility of the first grippers 4 in supporting the cave wall, shorten the working hours of the first grippers 4, and improve the excavation efficiency. One first telescopic driver 5 can synchronously drive a pair of first grippers 4 to improve the synchronization of the operation of a pair of first grippers 4, and reduce the number of first telescopic drivers 5 installed, saving construction costs. It is also possible that one first telescopic driver 5 drives one first gripper 4 in a corresponding manner, so that the first gripper 4 can swing vertically, improve the adaptability of the first gripper 4 to the top support of different cave wall shapes, improve the flexibility of the top support, and effectively avoid the situation where the end face of the first gripper 4 is not sufficiently in contact with the cave wall surface and affects the top support strength. Of course, when the first gripper shoe 4 is subjected to vertical adjustment and swinging, the first gripper shoe 4 needs to be hinged to the first telescopic drive 5 .

[0061] In the third embodiment, if Figure 3 and Figure 4 As shown, the saddle frame 2 includes an upper square frame 21, a middle square frame 22 and a lower square frame 23 connected in sequence; a pair of mirror-imaged first grippers 4 are provided at the top of the upper square frame 21 and the top of the lower square frame 23; and a first propeller 6 is provided at each of the four corners of the saddle frame 2. In this embodiment, the saddle frame 2 is in an H-shape or a ladder shape, and is provided with a total of four first grippers 4, a pair of first grippers 4 are mirror-imaged at the top of the saddle frame 2, and another pair of first grippers 4 are mirror-imaged at the bottom of the saddle frame 2. A first propeller 6 is provided at each of the four corners of the saddle frame 2, and the two ends of a first propeller 6 are correspondingly connected to the two first grippers 4 provided on the upper and lower sides, so that both the synchronous extension and retraction of the upper and lower first grippers 4 can be achieved, and the vertical swing of the first grippers 4 can be achieved, which has the advantages of saving construction costs and improving the flexibility of the top support.

[0062] Furthermore, a support hole 221 is provided inside the middle square frame 22; the main beam 1 passes through the support hole 221, and the two are connected by sliding along the horizontal direction; corner clamping strips 222 are correspondingly provided at the four corners of the support hole 221; L-shaped clamping grooves 11 are correspondingly provided at the four corners of the main beam 1; the corner clamping strips 222 are connected by sliding along the horizontal direction. Specifically, the L-shaped slot 11 is correspondingly arranged on the two vertical surfaces of the main beam 1, and the corner clip 222 is correspondingly arranged on the two vertical surfaces of the support hole 221. The projection of the main beam 1 on its longitudinal section is a cross shape, and the corner clip 222 can be regarded as a protrusion on the wall of the support hole 221, so that the protruding part of the main beam 1 can be correspondingly inserted into the adjacent protrusions on the same side of the support hole 221, that is, the protruding part of the main beam 1 is connected to the wall of the support hole 221 in a transverse sliding manner, and the L-shaped slot 11 of the main beam 1 is connected to the corner clip 222 in a transverse sliding manner to form a cross sliding connection structure, which effectively improves the connection strength and service life of the four corners of the main beam 1, and improves the reliability of the rear support 3 in steering adjustment of the main beam 1.

[0063] Optionally, a bending baffle is provided at the end of the L-shaped slot 11, and the bending baffle can abut against the corner clamping strip 222, so that the saddle frame 2 can limit the lateral sliding of the main beam 1, thereby improving the construction safety of the TBM main beam supporting propulsion device.

[0064] Secondly, an upper crossbeam 211 of the upper square frame 21 is arranged above the support hole 221; a lower crossbeam 231 of the lower square frame 23 is arranged below the support hole 221; a pair of first thrusters 6 are connected to the middle part of the upper crossbeam 211 and the middle part of the lower crossbeam 231 in a one-to-one correspondence. Figure 4 The circles above and below the middle support hole 221 are the connection nodes between the first propeller 6 and the crossbeam. Setting the connection node at the center of the crossbeam can effectively improve the propulsion stability. The components of the saddle frame 2 are tightly connected and highly integrated.

[0065] In the fourth embodiment, the TBM main beam supporting propulsion device further includes a second telescopic drive 7, a pair of second support shoes 8 and a pair of second thrusters 9; the pair of second support shoes 8 are arranged on the left and right sides of the saddle frame 2 in a one-to-one correspondence; the second telescopic drive 7 is arranged inside the saddle frame 2 in the longitudinal direction; the two ends of the second telescopic drive 7 are connected to the pair of second support shoes 8 in a one-to-one correspondence; one end of the second thruster 9 is hinged to the main beam 1, and the other end is hinged to the second support shoe 8; the pair of second thrusters 9 are arranged on the left and right sides of the main beam 1 in a one-to-one correspondence. The supporting principle of the left and right support shoes is the same as that of the upper and lower support shoes, which will not be repeated. In this embodiment, on the basis of the upper and lower support shoes, left and right support shoes are additionally provided to form two sets of jacking systems that can operate independently or simultaneously, which greatly improves the jacking strength of the TBM main beam supporting and propulsion device on the tunnel wall, and the flexibility of jacking on the tunnel wall in all directions. It not only enhances the jacking strength on the basis of the existing TBM main beam supporting and propulsion device (when the two sets of jacking systems are activated at the same time), but also can well adapt to the working conditions of partial collapse of the left and right tunnel walls or the secondary start of the Y-shaped tunnel (when the upper and lower jacking systems are activated).

[0066] When one set of top support system has a problem, it can be immediately replaced by another set, which improves the working efficiency. If two sets of top support systems encounter bad strata or machine jams, the two sets of top support systems can work simultaneously to help get out of trouble.

[0067] Furthermore, an upper top plate 212 is provided on the side of the upper square frame 21 facing the second support shoe 8; the top of the upper top plate 212 can abut against the bottom of the first support shoe 4; a clearance groove 2121 is provided at the bottom of the upper top plate 212, and the second telescopic drive 7 passes through the clearance groove 2121; a lower top plate 232 is provided on the side of the lower square frame 23 facing the second support shoe 8; the upper top plate 212 and the lower top plate 232 are arranged in a mirror image. Specifically, the top surface height of the upper top plate 212 is higher than the top retracted height of the first telescopic drive 5, so as to ensure that the top surface of the upper top plate 212 can limit the lowest descending position of the first support shoe 4, effectively protect the first telescopic drive 5, and extend its service life. The clearance groove 2121 at the bottom end of the upper top plate 212 is used to avoid the second telescopic drive 7 and the second support shoe 8 in the retracted state. The corresponding components are evenly arranged inside and on all four sides of the saddle frame 2, with high integration, optimized equipment structure, and effectively reduced The space occupied by the TBM main beam support propulsion device. The same is true for the lower top plate 232 and will not be described in detail.

[0068] See also Figure 5 and Figure 6The rear support 3 includes a frame 31, a leg 32, a support driver 33 and a direction adjustment driver 34; the frame 31 is arranged above the leg 32; one end of the support driver 33 is hinged to the frame 31, and the other end is connected to the leg 32; the support driver 33 can drive the leg 32 to rise and fall vertically; the direction adjustment driver 34 is arranged longitudinally; one end of the direction adjustment driver 34 is hinged to the frame 31, and the other end is hinged to the leg 32, so as to be able to drive the main beam 1 to turn to the left or right side of itself. Specifically, the height of the tail end of the frame 31, that is, the main beam 1, is adjusted by the support driver 33. The longitudinal direction of the frame 31, that is, the main beam 1, is slightly adjusted by the direction adjustment driver 34, so that the main beam 1 can turn to the left and right directions of the tunnel wall, thereby improving the construction flexibility of the TBM main beam support propulsion device.

[0069] It should be noted that the saddle frame 2 will also rotate during the steering adjustment of the rear support 3. The hinge points of the left and right support shoes and the upper and lower support shoes in this embodiment are all ball hinge structures, so the support shoes can adaptively abut against the hole wall when the saddle frame 2 rotates, and the steering amplitude of the rear support 3 is not large, which can ensure the stability of the steering adjustment of the rear support 3.

[0070] Furthermore, the leg 32 includes a connecting beam 321 and a pair of legs 322; the pair of legs 322 are arranged one by one on both sides of the bottom end of the connecting beam 321; a pair of support drivers 33 are arranged one by one on the left and right sides of the frame 31; the support driver 33 is connected to the connecting beam 321, or the support driver 33 passes through the connecting beam 321 and is connected to the legs 322; the direction adjustment driver 34 is hinged to the connecting beam 321; the pair of direction adjustment drivers 34 are arranged one by one on the front and rear sides of the connecting beam 321. Specifically, the leg 32 is arranged as a U-shaped structure, and the pair of support drivers 33 and the pair of direction adjustment drivers 34 are arranged on the four sides of the rear support 3, which has a high degree of integration and can effectively ensure the operation stability of the support driver 33 and the direction adjustment driver 34.

[0071] Optionally, the end faces of the first support shoe 4, the second support shoe 8 and the support foot 322 are all set to arcuate surfaces. Taking the first support shoe 4 as an example, when the first support shoe 4 abuts against the top surface and / or bottom surface of the hole wall, the hole wall surface can enhance the longitudinal reaction force applied to the first support shoe 4, thereby ensuring the stability of the first support shoe 4 and improving the reliability of the rear support 3 in steering the main beam 1. Therefore, the arcuate surface can increase the force direction of the first support shoe 4, the second support shoe 8 and the support foot 322, thereby improving the stability of the top support.

[0072] Secondly, the rear support 3 also includes a guide plate 35 disposed on the inner side of a pair of legs 322; the guide plate 35 is disposed at the bottom end of the frame 31; the guide plate 35 passes through the connecting beam 321, and the two are connected by sliding in the longitudinal direction. In this embodiment, a pair of guide plates 35 are disposed on the inner side of a pair of legs 322, and the space occupied by the guide plates 35 is relatively small. A corresponding slide groove is provided on the connecting beam 321, and the slide groove can guide the longitudinal sliding of the guide plate 35 without affecting the vertical lifting of the guide plate 35, and prevents the frame 31 from moving in the front-rear direction, effectively improving the stability of the steering adjustment of the rear support 3.

[0073] Under normal working conditions, the TBM main beam support propulsion device of the present invention uses the left and right support shoes to support the tunnel wall to provide driving force for the main machine to advance, and the direction adjustment driver 34 on the rear support 3 is locked, and the main machine is pushed to advance according to the conventional mode of the open TBM;

[0074] When the left and right support shoes are unable to hold the left and right tunnel walls tightly, the left and right support shoes retract, and the second thruster 9 maintains the pressure relief follow-up state; the first telescopic drive 5 extends to make the upper and lower support shoes hold the upper and lower tunnel walls tightly, providing reverse thrust for the cutter head excavation; the first thruster 6 replaces the second thruster 9 to advance, providing driving force for the cutter head excavation.

[0075] In addition, the TBM main beam supporting propulsion device can also adjust the direction of the main machine. The legs 32 are supported on the bottom surface of the tunnel wall by the support driver 33. The extension and retraction amount of the adjustment driver 34 can be controlled to slightly change the forward direction of the main machine.

[0076] It should be understood that the above description of the specific embodiments of the present invention is only for illustrating the technical route and features of the present invention, and its purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly, but the present invention is not limited to the above specific implementation methods. Any changes or modifications made within the scope of the claims of the present invention should be included in the protection scope of the present invention.

Claims

1. A TBM main beam support and propulsion device capable of supporting the tunnel wall in multiple directions, characterized in that: The TBM main beam supporting propulsion device comprises a main beam (1), a saddle frame (2), a rear support (3), a first support shoe (4), a first telescopic drive (5) and a first propeller (6); The saddle frame (2) is mounted on the main beam (1); the main beam (1) passes through the interior of the saddle frame (2) and is connected to the rear support (3); The first telescopic driver (5) is arranged on the saddle frame (2); the first support shoe (4) is arranged on the upper side or the lower side of the saddle frame (2); the first telescopic driver (5) is connected to the first support shoe (4) so ​​as to be able to drive the first support shoe (4) to rise and fall vertically; One end of the first propeller (6) is hinged to the main beam (1), and the other end is connected to the saddle frame (2); the first propeller (6) can drive the saddle frame (2) to move in the lateral direction.

2. The TBM main beam support and propulsion device capable of supporting the tunnel wall in multiple directions according to claim 1 is characterized in that: A pair of the first support shoes (4) are arranged on the upper and lower sides of the saddle frame (2) in a one-to-one correspondence; The two ends of the first telescopic actuator (5) are connected to a pair of the first support shoes (4) in a one-to-one correspondence; or the pair of the first telescopic actuators (5) are connected to a pair of the first support shoes (4) in a one-to-one correspondence.

3. The TBM main beam support and propulsion device capable of supporting the tunnel wall in multiple directions according to claim 1 is characterized in that: The saddle frame (2) comprises an upper square frame (21), a middle square frame (22) and a lower square frame (23) which are connected in sequence; A pair of mirror-image first support shoes (4) are provided at the top of the upper square frame (21) and the top of the lower square frame (23); The first propeller (6) is arranged at each of the four corners of the saddle frame (2).

4. The TBM main beam support and propulsion device capable of supporting the tunnel wall in multiple directions according to claim 3 is characterized in that: A support hole (221) is provided inside the middle square frame (22); the main beam (1) passes through the support hole (221), and the two are connected by sliding in a transverse direction; Corner clamping strips (222) are correspondingly arranged at the four corners of the support hole (221); L-shaped clamping grooves (11) are correspondingly opened at the four corners of the main beam (1); and the corner clamping strips (222) are connected to the L-shaped clamping grooves (11) in a transverse sliding manner.

5. The TBM main beam support and propulsion device capable of supporting the tunnel wall in multiple directions according to claim 4 is characterized in that: An upper crossbeam (211) of the upper square frame (21) is arranged above the support hole (221); and a lower crossbeam (231) of the lower square frame (23) is arranged below the support hole (221); A pair of the first thrusters (6) are connected to the middle portion of the upper cross beam (211) and the middle portion of the lower cross beam (231) in a one-to-one correspondence.

6. The TBM main beam supporting and propulsion device capable of supporting the tunnel wall in multiple directions according to claim 3 is characterized in that: The TBM main beam supporting propulsion device further comprises a second telescopic driver (7), a pair of second support shoes (8) and a pair of second propellers (9); A pair of the second support shoes (8) are arranged one-to-one on the left and right sides of the saddle frame (2); the second telescopic driver (7) is arranged longitudinally inside the saddle frame (2); two ends of the second telescopic driver (7) are connected to the pair of the second support shoes (8) one-to-one; One end of the second propeller (9) is hinged to the main beam (1), and the other end is hinged to the second support shoe (8); a pair of the second propellers (9) are arranged on the left and right sides of the main beam (1) in a one-to-one correspondence.

7. The TBM main beam supporting and propulsion device capable of supporting the tunnel wall in multiple directions according to claim 6 is characterized in that: An upper top plate (212) is provided on a surface of the upper square frame (21) facing the second support shoe (8); The top end of the upper top plate (212) can abut against the bottom surface of the first support shoe (4); a clearance groove (2121) is provided at the bottom end of the upper top plate (212), and the second telescopic driver (7) passes through the clearance groove (2121); A lower top plate (232) is arranged on the side of the lower square frame (23) facing the second support shoe (8); the upper top plate (212) and the lower top plate (232) are arranged in a mirror image.

8. The TBM main beam support and propulsion device capable of supporting the tunnel wall in multiple directions according to any one of claims 1 to 7, characterized in that: The rear support (3) comprises a frame (31), supporting legs (32), a supporting driver (33) and a direction adjustment driver (34); The frame (31) is arranged above the supporting legs (32); One end of the support driver (33) is hinged to the frame (31), and the other end is connected to the support leg (32); the support driver (33) can drive the support leg (32) to rise and fall vertically; The steering drive (34) is arranged in the longitudinal direction; one end of the steering drive (34) is hinged to the frame (31), and the other end is hinged to the support leg (32), so as to be able to drive the main beam (1) to turn to the left or right side of itself.

9. The TBM main beam supporting and propulsion device capable of supporting the tunnel wall in multiple directions according to claim 8, characterized in that: The supporting leg (32) comprises a connecting beam (321) and a pair of supporting legs (322); A pair of the supporting legs (322) are arranged one-to-one on both sides of the bottom end of the connecting beam (321); a pair of the supporting drivers (33) are arranged one-to-one on the left and right sides of the frame (31); the supporting driver (33) is connected to the connecting beam (321), or the supporting driver (33) passes through the connecting beam (321) and is connected to the supporting legs (322); The direction adjustment driver (34) is hinged to the connecting beam (321); a pair of the direction adjustment drivers (34) are arranged on the front and rear sides of the connecting beam (321) in a one-to-one correspondence.

10. The TBM main beam supporting and propulsion device capable of supporting the tunnel wall in multiple directions according to claim 9, characterized in that: The rear support (3) further comprises a guide plate (35) arranged on the inner side of a pair of the supporting feet (322); the guide plate (35) is arranged at the bottom end of the frame (31); the guide plate (35) passes through the connecting beam (321), and the two are connected by sliding along the longitudinal direction.

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