Tunnel segment replacement device and tunnel segment replacement method

Abstract

The invention discloses a tunnel segment replacing device and a tunnel segment replacing method.The tunnel segment replacing device comprises a supporting frame and a plurality of rotation gear rings arranged on the supporting frame, each rotation gear ring is provided with a rotation mechanism walking along the rotation gear ring, and at least one rotation mechanism is provided with a protection mechanism stretching out and drawing back in the radial direction; at least one swing mechanism is provided with a vibrator, at least one swing mechanism is provided with an assembling mechanism, the vibrator is used for vibrating and crushing the damaged duct piece, the protection mechanism is used for supporting the duct piece adjacent to the damaged duct piece, and the assembling mechanism is used for assembling a new duct piece; the tunnel segment replacement device is adopted in the tunnel segment replacement method. According to the tunnel segment replacement device, the problem that segments which are seriously damaged and seriously staggered are unable to be maintained and replaced is solved, when the tunnel segment replacement device is operated, a heading machine does not need to be shut down, no waiting gap exists from segment vibration to segment assembly, efficiency is high, and the segments are maintained and replaced in time, so that construction safety and subsequent safe use of a tunnel are guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of pipe segment maintenance and replacement, and in particular to a tunnel pipe segment replacement device and a tunnel pipe segment replacement method. Background Art

[0002] When a tunnel is constructed by a shield machine or other excavation equipment, the segments assembled inside it serve as load-bearing and waterproof structures. The segments are prefabricated and are spliced ​​together one by one from the beginning to the end of the tunnel. Due to various accidental factors such as segment processing quality, impact during transportation or assembly, and ground vibration, the assembled segments may be damaged. Sometimes, due to assembly errors, there are large misalignments and gaps between the segments in different rings. The above segments in abnormal states may cause tunnel leakage, reduce the bearing capacity of the tunnel structure, and cannot guarantee the subsequent use function of the tunnel. Therefore, it is necessary to repair the segments in abnormal states.

[0003] For example, the invention patent application with the application publication date of 2020.11.27 and the application publication number of CN111997656A discloses a method for preparing a damaged repair structure of a shield tunnel formed pipe segment, and the specific production steps are as follows: 1. Chisel out the fragments; 2. Clean the broken surface; 3. Drill holes to anchor expansion bolts; 4. Apply interface agent; 5. Tie wire mesh; 6. Fill the repair mortar in layers; 7. Fill the surface with color-adjusting mortar and polish. This technical solution repairs the damaged pipe segments by a set of methods such as crushing and chiseling the damaged pipe segments, cleaning, drilling holes to anchor expansion bolts, applying interface agent, tying wire mesh, filling repair mortar in layers, filling color-adjusting mortar and polishing. However, this repair method can only repair parts of the pipe segments that are not severely damaged. For severely broken pipe segments, it is impossible to drill holes to anchor expansion bolts when there is no underlying support structure, and the bolts do not have a stable and firm rooting point.

[0004] Another example is an invention patent application with an application publication date of 2024.05.24 and application publication number of CN118065928 A, which discloses a device and method for repairing cracks in shield machine segments, which is used to repair cracks on shield segments during shield construction. The device includes a side frame, a passive connecting frame, an active connecting frame and a repair platform; the top of the side frame is arc-shaped, and the active connecting frame is slidably connected to the arc-shaped parts of the two side frames, which can not only telescope to change the distance between the two side frames, but also slide to change the position on the side frames, and the passive connecting frame is connected to the middle of the two side frames to play a guiding role; a multi-directional drilling mechanism is provided on the repair platform in the middle of the active connecting frame, which can drill along the depth direction of the crack in the segment. That is, a platform is designed, and a detection and drilling device is installed on the platform. When cracks are detected inside the segment, holes are drilled at the cracks, and then grouting is performed. This method can repair cracks and gaps on the back of the segment, and play a role in waterproof reinforcement, but it cannot repair damage to the segment surface and misalignment between different ring segments.

[0005] In summary, the research on the repair method of tunnel segments has made some progress, but it still cannot meet the needs of comprehensive repair of segments, especially for seriously damaged segments and dislocated segments that cannot be repaired. Therefore, it is necessary to design a device that can repair and replace damaged and unusable segments.

[0006] It should be particularly noted that the above technical information is only intended to deepen the understanding of the overall background technology of the present invention, and should not be regarded as admitting or implying in any form that the above technical information constitutes the prior art already known to those skilled in the art. Summary of the invention

[0007] In view of the deficiencies in the above-mentioned background technology, the present invention proposes a tunnel segment replacement device and a tunnel segment replacement method, and the technical problem to be solved is: how to repair and replace the segments in the tunnel that cannot be used due to severe damage or severe misalignment.

[0008] The technical solution of the present invention is: A tunnel segment replacement device comprises a support frame and a plurality of rotating gear rings arranged on the support frame, each rotating gear ring is provided with a rotating mechanism that travels along the rotating gear ring, at least one rotating mechanism is provided with a radially retractable protective mechanism, at least one rotating mechanism is provided with a vibrator, and at least one rotating mechanism is provided with an assembling mechanism, the vibrator is used to vibrate and crush a damaged segment, the protective mechanism is used to support a segment adjacent to the damaged segment, and the assembling mechanism is used to assemble a new segment.

[0009] In the present technical solution, the support frame serves as the supporting body of the entire device, on which a rotating gear ring or two or more rotating gear rings can be arranged. The rotating mechanism can move along the circumference of the rotating gear ring, so it can approach the pipe segment at any position in the tunnel. The protective mechanism, vibrator and assembly mechanism therein can move synchronously with the rotating mechanism, and then the vibrator crushes and disassembles the pipe segment to be repaired and replaced. At the same time, the protective mechanism supports the adjacent pipe segments, and the assembly mechanism can assemble the new pipe segment to the position after the original pipe segment is crushed and disassembled for replacement.

[0010] On the basis of the above technical solution, as the preferred technical solution of the tunnel segment replacement device, the slewing mechanism includes a slewing gear driven by a slewing motor, the slewing gear is connected to a slewing plate, the slewing plate is connected to a limiting wheel, the slewing gear is meshed with the gear teeth on the circumferential surface of one side of the slewing gear ring, and the limiting wheel is frictionally rolling or tooth-meshing with the circumferential surface of the other side of the slewing gear ring. This technical solution is a further optimization of the above technical solution, and provides a preferred slewing mechanism, that is, the slewing gear is used as the driving wheel driven by the slewing motor, and can move along the gear teeth on the slewing gear ring, and the limiting wheel is the driven wheel of the slewing mechanism, which can be either a roller that is frictionally rolling with the slewing gear ring or a gear that is meshed with the slewing gear ring; the slewing gear and the limiting wheel are respectively located on the inner and outer sides of the slewing gear ring, and the two work together to clamp on both sides of the slewing gear ring.

[0011] On the basis of the above technical solution, as a preferred technical solution for the tunnel segment replacement device, the rotating gear meshes with the gear teeth on the inner circumferential surface of the rotating gear ring or the gear teeth on the outer circumferential surface. This technical solution provides two preferred rotating mechanisms, one is that the rotating gear as the driving wheel meshes with the gear on the inner circumferential surface of the rotating gear ring. It can be seen from the above embodiment that at this time, the limiting wheel as the driven wheel rolls with or meshes with the outer circumferential surface of the rotating gear ring; the other is the opposite structural form, that is, the rotating gear as the driving wheel meshes with the gear on the outer circumferential surface of the rotating gear ring. It can be seen from the above embodiment that at this time, the limiting wheel as the driven wheel rolls with or meshes with the inner circumferential surface of the rotating gear ring.

[0012] On the basis of the above technical solution, as the preferred technical solution of the tunnel segment replacement device, the slewing mechanism includes two slewing gears respectively connected to slewing motors, the two slewing gears are respectively located on the left and right sides of the slewing gear ring or on the same side of the slewing gear ring, and the two slewing motors are connected by a connecting rod and connected to the slewing plate by the connecting rod. This technical solution is a further upgrade of the above technical solution, in which two slewing gears as driving wheels in the slewing mechanism are set, and at this time, the limiting wheels as driven wheels can be two, one, or more; the two slewing gears and the slewing gears and the slewing plate are connected to each other by connecting rods, forming a more stable slewing mechanism. When the two slewing gears are arranged on the left and right sides of the slewing gear ring, the entire slewing mechanism can not only clamp the slewing gear ring in the left and right directions through the two slewing gears, but also clamp the slewing gear ring in the inner and outer directions through the cooperation of the slewing gear and the limiting wheel, thereby making the cooperation between the entire slewing mechanism and the slewing gear ring more stable and reliable. When two rotating gears are arranged on the same side of the rotating gear ring, the two rotating gears and a plurality of limiting wheels clamp the rotating gear ring. Although the stability is weaker than the technical solution located on both sides of the rotating gear ring, it also has considerable stability.

[0013] On the basis of the above technical solution, as the preferred technical solution of the tunnel segment replacement device, the two rotating gears are a group of driving gears and are located on the same side of the rotating gear ring, and another group of symmetrical driving gears are arranged on the other side of the rotating gear ring, and the two rotating motors of the other group of driving gears are connected by a connecting rod and connected to the rotating plate through the connecting rod. This technical solution is a further upgrade of the above technical solution, in which the rotating gear ring is clamped in the left and right directions by two rotating gears, and the rotating gear ring is clamped in the inner and outer directions by the cooperation of the rotating gear and the limiting wheel. The four rotating gears and several limiting wheels, the connecting rod and the rotating plate constitute a rotating mechanism, which further improves the stability of the entire rotating mechanism when it moves along the rotating gear ring, and the stability of the rotating mechanism when it is stationary relative to the rotating gear ring.

[0014] On the basis of the above technical solutions, as a preferred technical solution for the tunnel segment replacement device, the protective mechanism includes a protective plate and a telescopic drive device and a support guide assembly connected between the protective plate and the rotating mechanism. This technical solution provides a preferred implementation of the protective mechanism, in which the telescopic drive device is used to drive the protective plate to approach the segment in the tunnel or away from the segment in the tunnel, and the support guide assembly can not only support the limited protective plate together with the telescopic drive device, but also guide the telescopic drive device. Further preferably, the two ends of the telescopic drive device are respectively hinged to the protective plate and the rotating plate, and the fixed part in the support guide assembly is fixedly connected to the rotating plate, and the movable part is fixedly connected to the protective plate, and there is a certain amount of free space between the fixed part and the movable part in the direction perpendicular to the vertical telescopic direction.

[0015] On the basis of the above technical solution, as a preferred technical solution for the tunnel segment replacement device, the telescopic drive device is a telescopic oil cylinder or a telescopic electric cylinder or a telescopic air cylinder, and the support and guide assembly includes a sleeve and a telescopic rod plugged into the sleeve.

[0016] On the basis of the above technical solution, as the preferred technical solution for the tunnel segment replacement device, the bottom of the support frame is connected to a walking wheel with a built-in walking motor, and the top is connected to a hoist for lifting the segments. Several walking wheels are symmetrically arranged about the median vertical plane of the support frame, and the space between the walking wheels on the left and right sides is the segment transfer channel.

[0017] On the basis of the above technical solution, as the preferred technical solution for the tunnel segment replacement device, three rotating gear rings are provided, and two rotating mechanisms for arranging vibrators and assembly mechanisms are respectively provided on the middle rotating gear ring, and two rotating mechanisms for arranging protective mechanisms are provided on the rotating gear rings on the front and rear sides.

[0018] A tunnel segment replacement method, using the tunnel segment replacement device described in any one of the above technical solutions to perform the following operations: driving a support frame to move forward and backward in the tunnel to the segment to be repaired and replaced; driving a rotary mechanism with a vibrator to move along a rotary gear ring to a specified angle position, so that the vibrator points to the segment to be repaired and replaced; driving a rotary mechanism with a protective mechanism to move along a rotary gear ring to a specified angle position, so that the protective mechanism points to a position that needs to be protected; When the protection mechanism is in place, the vibrator starts to work and gradually crushes the pipe segment to be repaired and replaced; in the tunnel section direction, when a part of the pipe segment to be repaired and replaced is vibrated and crushed, the rotary mechanism with the vibrator is driven to rotate a certain angle along the rotary gear ring to continue vibrating; in the axial direction of the tunnel, when a part of the pipe segment to be repaired and replaced is vibrated and crushed, the entire support frame or the rotary gear ring with the vibrator is driven to move in the front-back direction to continue vibrating; During the movement of the support frame, the protective mechanism is in a retracted state; when the pipe segment to be repaired and replaced is completely removed, the rotary mechanism with the assembly mechanism is driven to move along the rotary gear ring, and the new pipe segment is installed to the position of the removed pipe segment in cooperation with the assembly mechanism.

[0019] Compared with the prior art, the tunnel segment replacement device and tunnel segment replacement method proposed in the present invention have the following significant effects: the tunnel segment replacement device in the present invention is suitable for all types of tunnels with segments, and the protective mechanism, vibrator, and assembly mechanism are adapted to the rotary gear ring through the rotary mechanism, which solves the problem that the seriously damaged and seriously misaligned segments cannot be repaired and replaced, and avoids the problem that the broken stones fall when the segments are damaged and affect the safety of tunnel construction. When the tunnel segment replacement device is operated, the tunnel boring machine does not need to be stopped, and there is no waiting gap from segment vibration to assembly, which is highly efficient. The timely repair and replacement of the segments ensures the construction safety and the subsequent safe use of the tunnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying any creative work.

[0021] Figure 1 A schematic diagram of an implementation method of a tunnel segment replacement device; Figure 2 for Figure 1 A side view of the tunnel segment replacement device in application state; Figure 3 for Figure 1 Cross-section of the tunnel segment replacement device in use Figure 1 ; Figure 4 for Figure 1 Cross-section of the tunnel segment replacement device in use Figure 2 ; Figure 5 A schematic diagram of an implementation of a slewing mechanism; Figure 6 for Figure 5 The main view of Figure 7 A schematic diagram of an implementation of a protection mechanism.

[0022] Description of Figure Numbers: Support frame 1; Rotating gear ring 4; Rotating mechanism 5: rotating gear 5-1, rotating motor 5-2, connecting rod 5-3, limiting roller 5-4, rotating plate 5-5; Protection mechanism 6: telescopic cylinder 6-1, sleeve 6-2, telescopic rod 6-3, protection plate 6-4; Vibrator 7; Assembling mechanism 8; Segment 9; Lifting hoist10. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the core concept of the present invention and the following embodiments, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] The present application provides these embodiments to make the present application thorough and complete, and to fully express the scope of the present application to those skilled in the art. It should be noted that unless otherwise specifically stated, the relative arrangement of the parts and steps, the composition of the materials, the numerical expressions and the numerical values ​​set forth in these embodiments should be interpreted as being merely exemplary, and not as limiting.

[0025] It should be noted that, in the description of this application, unless otherwise specified, the meaning of "several" is greater than or equal to two; the terms "upper", "lower", "left", "right", "inner", "outer", "axial", "radial" and the like indicate positions or positional relationships only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on this application. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0026] In addition, the words "first", "second" and similar words used in this application do not indicate any order, quantity or importance, but are only used to distinguish different parts. "Vertical" does not mean vertical in the strict sense, but is within the tolerance range. "Parallel" does not mean parallel in the strict sense, but is within the tolerance range. "Include" or "comprising" and similar words mean that the elements before the word include the elements listed after the word, and do not exclude the possibility of including other elements.

[0027] It should also be noted that in the description of this application, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be internal communication between two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances. When a specific device is described as being located between a first device and a second device, there may or may not be an intermediate device between the specific device and the first device or the second device.

[0028] All terms used in this application have the same meaning as those understood by those of ordinary skill in the art to which this application belongs, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries, such as 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 extremely formal sense, unless explicitly defined herein.

[0029] 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.

[0030] One object of the present invention is to provide a device capable of replacing seriously damaged and seriously misaligned pipe segments in a tunnel.

[0031] In order to achieve the above-mentioned purpose, the tunnel boring machine of the present invention comprises: a support frame, which is a support structure of a segment replacement device; a travel wheel, which is installed at the bottom of the support frame, and the travel wheel is on the segment running in the tunnel, and the travel wheel is driven by a travel motor; a rotary gear ring is installed and fixed on the support frame, and is a rotating track of the rotary mechanism; in the rotary mechanism, the rotary motor drives the rotary gear to mesh and run on the inner side of the rotary gear ring; the connecting rod connects the two rotary gears and the rotary plate into a whole; a limiting roller is installed under the rotary plate and runs on the outer surface of the rotary gear ring; the rotary plate serves as a protective mechanism, a vibrator and an assembly The base of the mechanism; the protective mechanism is installed on the rotating plate to prevent large pieces of gravel from falling during vibration and to support adjacent segments; in the protective mechanism, the protective mechanism is used to prevent large pieces of gravel from falling during vibration and to support adjacent segments; in the protective mechanism, the protective plate is connected to the telescopic rod and the deep oil cylinder, and the distance between the protective plate and the segment is adjusted by extending and retracting the telescopic oil cylinder; one end of the telescopic rod is inserted into the sleeve, which is installed on the rotating plate to provide guidance and support for the telescopic rod. The vibrator is used to vibrate and crush damaged segments; the assembly mechanism assembles new segments. The hoisting hoist is installed on the support frame to lift the segment from the transport vehicle and place it at the bottom of the tunnel.

[0032] In the segment replacement device of the present invention, as described above, the support frame walks on the segment, and when the segment position to be replaced is reached, the swivel mechanism of the vibrator is rotated on the swivel gear ring, so that the vibrator points to the angle of the segment to be vibrated and replaced. At the same time, the swivel mechanism of the protective mechanism is rotated to point the protective plate to a suitable angle, so that when the protective plate is extended, it is located at the front and rear sides of the crushing position of the vibrator, which plays a role in protecting the loose slag from falling; the walking wheel can realize the front and rear movement of the vibrator along the axis of the tunnel; and the swivel mechanism can realize the rotation of the vibrator at any position along the circumferential direction of the tunnel section. The position of the vibrator is adjusted until the segment position to be replaced is cleared. The new segment is transported to the support frame, the hoisting hoist unloads the segment from the transport vehicle and puts it into the tunnel, the swivel mechanism of the assembly mechanism is rotated to the bottom of the tunnel, the assembly mechanism grabs the segment, and then runs to the position to be replaced for assembly.

[0033] Therefore, according to the present invention, it is possible to replace the seriously damaged or misaligned segments, avoid the decrease of tunnel bearing capacity due to damaged segments, and cause water leakage and collapse. Reduce the misalignment between segments and ensure the good use of subsequent functions of the tunnel.

[0034] The specific embodiments are as follows: A tunnel segment replacement device, such as Figure 1 , Figure 2 , Figure 4 As shown, it includes a support frame 1 and a plurality of rotating gear rings 4 arranged on the support frame 1. The support frame 1 can be moved by a traction device, can be moved by a push device, and can also be equipped with a self-propelled driving wheel.

[0035] The slewing gear ring 4 is directly connected to the support frame 1 or connected through a linear drive mechanism. When the slewing gear ring 4 is connected to the support frame 1 through a linear drive mechanism, the position of the slewing gear ring 4 relative to the support frame 1 can be changed through the linear drive mechanism, so that the slewing gear ring 4 can move in the front and rear direction of the tunnel relative to the support frame 1. The linear drive mechanism can use a hydraulic cylinder, an electric cylinder, or a traction device composed of a winch and a pulley block.

[0036] Each rotating gear ring 4 is provided with a rotating mechanism 5 that moves along the rotating gear ring 4, at least one rotating mechanism 5 is provided with a radially retractable protective mechanism 6, at least one rotating mechanism 5 is provided with a vibrator 7, and at least one rotating mechanism 5 is provided with an assembling mechanism 8. The vibrator 7 is used to vibrate and crush the damaged pipe segment 9, the protective mechanism 6 is used to support the pipe segment 9 adjacent to the damaged pipe segment 9, and the assembling mechanism 8 is used to assemble new pipe segments 9.

[0037] The structures of the vibrator 7 and the assembling mechanism 8 are the same as those in the prior art. Those skilled in the art can select corresponding types of vibrators and assembling mechanisms according to actual needs, which will not be described in detail in this embodiment.

[0038] In this embodiment, the support frame 1 serves as the supporting body of the entire device, on which a rotating gear ring 4 or two or more rotating gear rings 4 can be arranged, and the rotating mechanism 5 can move circumferentially along the rotating gear ring 4, so that it can approach the pipe segment at any position in the tunnel, and the protective mechanism 6, vibrator 7 and assembling mechanism 8 therein can move synchronously with the rotating mechanism 5, and then the vibrator 7 crushes and disassembles the pipe segment 9 to be repaired and replaced. At the same time, the protective mechanism 6 supports the adjacent pipe segment 9, and the assembling mechanism 8 can assemble the new pipe segment 9 to the position after the original pipe segment 9 is crushed and disassembled for replacement.

[0039] Based on the above embodiments, as a preferred embodiment of the tunnel segment replacement device, Figure 1 , Figure 5 and Figure 6 As shown, the rotating mechanism 5 includes a rotating gear 5-1 driven by a rotating motor 5-2, the rotating gear 5-1 is connected to a rotating plate 5-5, the rotating plate 5-5 is connected to a limiting wheel, the rotating gear 5-1 is meshed with the gear teeth on the circumferential surface of one side of the rotating gear ring 4, and the limiting wheel is frictionally rolling or tooth-meshed with the circumferential surface of the other side of the rotating gear ring 4.

[0040] This embodiment is a further optimization of the above embodiment, and provides a preferred rotating mechanism 5, that is, the rotating gear 5-1 serves as the driving wheel driven by the rotating motor 5-2, and can move along the teeth on the rotating ring gear 4, and the limiting wheel is the driven wheel of the rotating mechanism, which can be either a roller that frictionally rolls with the rotating ring gear 4 or a gear that meshes with the rotating ring gear; the rotating gear 5-1 and the limiting wheel are respectively located on the inner and outer sides of the rotating ring gear 4, and the two work together to clamp the two sides of the rotating ring gear 4.

[0041] Based on the above embodiments, as a preferred embodiment of the tunnel segment replacement device, Figure 1 , Figure 5 , Figure 6As shown, the rotating gear 5-1 meshes with the gear teeth on the inner circumferential surface of the rotating gear ring 4 or the gear teeth on the outer circumferential surface. This embodiment provides two preferred rotating mechanisms 5, one is that the rotating gear 5-1 as the driving wheel meshes with the gear on the inner circumferential surface of the rotating gear ring 4. It can be seen from the above embodiment that at this time, the limiting wheel as the driven wheel rolls with or meshes with the outer circumferential surface of the rotating gear ring 4; the other is the opposite structural form, that is, the rotating gear 5-1 as the driving wheel meshes with the gear on the outer circumferential surface of the rotating gear ring 4. It can be seen from the above embodiment that at this time, the limiting wheel as the driven wheel rolls with or meshes with the inner circumferential surface of the rotating gear ring 4.

[0042] Based on the above embodiments, as a preferred embodiment of the tunnel segment replacement device, Figure 6 As shown, the slewing mechanism 5 includes two slewing gears 5-1 connected to slewing motors 5-2 respectively, the two slewing gears 5-1 are respectively located on the left and right sides of the slewing gear ring 4 or on the same side of the slewing gear ring 4, and the two slewing motors 5-2 are connected by a connecting rod 5-3 and connected to the slewing plate 5-5 by the connecting rod 5-3. This embodiment is a further upgrade of the above embodiment, in which two slewing gears 5-1 as driving wheels in the slewing mechanism 5 are set, and the limiting wheels as driven wheels can be two or one, or of course multiple; the two slewing gears 5-1 and the slewing gears 5-1 and the slewing plate 5-5 are connected to each other by connecting rods 5-3, forming a more stable slewing mechanism 5. When the two rotating gears 5-1 are arranged on the left and right sides of the rotating gear ring 4, the entire rotating mechanism 5 can not only clamp the rotating gear ring 4 in the left and right directions through the two rotating gears 5-1, but also clamp the rotating gear ring 4 in the inner and outer directions through the cooperation between the rotating gear 5-1 and the limiting wheel, thereby making the cooperation between the entire rotating mechanism 5 and the rotating gear ring 4 more stable and reliable. When the two rotating gears 5-1 are arranged on the same side of the rotating gear ring 4, the two rotating gears 5-1 and the plurality of limiting wheels clamp the rotating gear ring 4, although the stability is weaker than that of the embodiment located on both sides of the rotating gear ring 4, it also has considerable stability.

[0043] Based on the above embodiments, as a preferred embodiment of the tunnel segment replacement device, Figure 5As shown, the two rotating gears 5-1 are a set of driving gears and are located on the same side of the rotating gear ring 4. Another set of symmetrical driving gears is provided on the other side of the rotating gear ring 4. The two rotating motors 5-2 of the other set of driving gears are connected by a connecting rod 5-3 and are connected to the rotating plate 5-5 by the connecting rod 5-3. This embodiment is a further upgrade of the above embodiment. The rotating gear ring 4 is clamped in the left and right directions by the two rotating gears 5-1, and the rotating gear ring 4 is clamped in the inner and outer directions by the cooperation between the rotating gear 5-1 and the limiting wheel. The four rotating gears 5-1, several limiting wheels, connecting rods 5-3 and rotating plates 5-5 constitute a rotating mechanism 5, which further improves the stability of the entire rotating mechanism 5 when it moves along the rotating gear ring 4, and the stability of the rotating mechanism 5 when it is stationary relative to the rotating gear ring 4.

[0044] Based on the above embodiments, as a preferred embodiment of the tunnel segment replacement device, Figure 7 As shown, the protection mechanism 6 includes a protection plate 6-4 and a telescopic drive device and a support guide assembly connected between the protection plate 6-4 and the slewing mechanism 5. This embodiment provides a preferred implementation of the protection mechanism 6, the telescopic drive device is used to drive the protection plate 6-4 to approach the pipe segment 9 in the tunnel or to move away from the pipe segment 9 in the tunnel, and the support guide assembly can not only support the position-limiting protection plate 6-4 together with the telescopic drive device, but also guide the telescopic drive device.

[0045] More preferably, if Figure 7 As shown, the two ends of the telescopic drive device are respectively hinged to the protective plate 6-4 and the rotating plate 5-5, and the fixed part in the support guide assembly is fixedly connected to the rotating plate 5-5, and the movable part is fixedly connected to the protective plate 6-4. In the direction perpendicular to the vertical telescopic direction, there is a certain amount of movable margin between the fixed part and the movable part.

[0046] On the basis of the above embodiments, as a preferred embodiment of the tunnel segment replacement device, the telescopic drive device is a telescopic oil cylinder 6-1 or a telescopic electric cylinder or a telescopic air cylinder, and the supporting guide assembly includes a sleeve 6-2 and a telescopic rod 6-3 plugged into the sleeve 6-2.

[0047] Based on the above embodiments, as a preferred embodiment of the tunnel segment replacement device, Figure 1 As shown, the support frame 1 is connected to a travel wheel 3 with a travel motor 2 at the bottom and a hoist for hoisting the pipe segment 9 at the top, and the hoist can be a manual hoist or an electric hoist. Several travel wheels 3 are symmetrically arranged about the vertical plane of the support frame 1, and the space between the travel wheels 3 on the left and right sides is a pipe segment transfer channel.

[0048] Based on the above embodiments, as a preferred embodiment of the tunnel segment replacement device, Figure 1and Figure 2 As shown, there are three rotating gear rings 4, the middle rotating gear ring 4 is provided with two rotating mechanisms 5 respectively arranged with a vibrator 7 and an assembling mechanism 8, and the rotating gear rings 4 on the front and rear sides are each provided with two rotating mechanisms 5 for arranging a protective mechanism 6.

[0049] As a preferred embodiment of the tunnel segment replacement device, Figures 1 to 7 As shown, it includes the following structural features: a support frame 1 is a support structure in the tunnel segment replacement device, used to support the rotating gear ring 4.

[0050] The travel motor 2 is a driving device for the travel wheel 3 .

[0051] The running wheels 3 run back and forth on the tunnel segments 9 and are installed at the bottom of the support frame 1 at a certain angle to the tunnel centerline. The space between the left and right running wheels 3 is sufficient for the transportation of one segment.

[0052] The slewing gear ring 4 is fixed on the support frame 1 to provide a running track for the slewing mechanism 5 .

[0053] The slewing mechanism 5 is on the slewing gear ring 4 and rotates 360 degrees around the tunnel center to provide support for the protection mechanism 6, the vibrator 7 and the assembly mechanism 8.

[0054] The rotating gear 5 - 1 meshes and rotates on the rotating ring gear 4 .

[0055] The rotary motor 5-2 is a driving mechanism for the rotary gear 5-1 and can rotate forward and reverse.

[0056] The connecting rod 5-3 connects the two rotary motors 5-2 and the rotary plate 5-5 to form a stable frame.

[0057] The limiting roller 5 - 4 is installed below the rotating flat plate 5 - 5 and moves on the outer surface of the rotating gear ring 4 .

[0058] The rotating plate 5 - 5 serves as a base for the protective mechanism 6 , the vibrator 7 and the assembling mechanism 8 .

[0059] The protective mechanism 6 prevents large pieces of gravel from falling off during vibration and also supports adjacent segments. The number of protective mechanisms can be increased or decreased according to the situation.

[0060] The telescopic cylinder 6-1 adjusts the distance between the protective plate 6-4 and the pipe segment.

[0061] The sleeve 6-2 provides guidance and support for the telescopic rod 6-3.

[0062] The telescopic rod 6-3 is connected to the protective plate 6-4.

[0063] The protective plate 6-4 is used to compress the pipe segment and prevent it from falling. The protective plate 6-4 can be made of hard nylon, steel plate and other materials.

[0064] The vibrator 7 is used to vibrate and break the damaged pipe segments 9.

[0065] Assembling mechanism 8, assembling new pipe segment 9.

[0066] Segment 9, support for the tunnel, prefabricated structure.

[0067] The hoisting hoist 10, the unloading tool, unloads the pipe segment from the transport vehicle and hoists it to the bottom of the tunnel.

[0068] A tunnel segment replacement method, using the tunnel segment replacement device described in any one of the above embodiments to perform the following operations: driving a support frame 1 to move forward and backward in the tunnel to a segment 9 to be repaired and replaced; driving a slewing mechanism 5 with a vibrator 7 to move along a slewing gear ring 4 to a specified angle position, so that the vibrator 7 points to the segment 9 to be repaired and replaced; driving a slewing mechanism 5 with a protective mechanism 6 to move along a slewing gear ring 4 to a specified angle position, so that the protective mechanism 6 points to a position that needs to be protected; When the protection mechanism 6 is in place, the vibrator 7 starts to work and gradually crushes the pipe segment 9 to be repaired and replaced; in the tunnel section direction, when a part of the pipe segment 9 to be repaired and replaced is vibrated and crushed, the rotary mechanism 5 with the vibrator 7 is driven to rotate a certain angle along the rotary gear ring 4 to continue vibrating; in the axial direction of the tunnel, when a part of the pipe segment 9 to be repaired and replaced is vibrated and crushed, the entire support frame 1 or the rotary gear ring 4 with the vibrator 7 is driven to move in the front-rear direction to continue vibrating; During the movement of the support frame 1, the protective mechanism 6 is in a retracted state; when the pipe segment 9 to be repaired and replaced is completely removed, the rotating mechanism 5 with the assembling mechanism 8 is driven to move along the rotating gear ring 4, and the new pipe segment 9 is installed to the position of the removed pipe segment 9 in cooperation with the assembling mechanism 8.

[0069] As a preferred implementation method of the tunnel segment replacement method, the specific scheme and process are as follows: When the tunnel boring machine continues to excavate after assembling the segments, the assembled segments 9 may be damaged due to multiple accidental factors such as time, geological disturbance, etc. If the damage is serious and cannot be repaired by simple repair or grouting measures, the segment needs to be replaced as a whole. If the front and rear adjacent segments 9 are seriously misaligned and cannot meet the subsequent use function of the tunnel, the segment needs to be replaced as a whole.

[0070] When the segment to be replaced is located, the travel motor 2 drives the travel wheel 3 to travel in front and back of the tunnel to the segment to be repaired and replaced. During the travel, the telescopic cylinder 6-1 in the protection mechanism 6 remains in a retracted state to prevent the protection plate 6-4 from interfering with the tunnel.

[0071] The slewing mechanism 5 runs on the slewing gear ring 4 to a specified angle position, so that the vibrator 7 points to the direction of the pipe segment that needs to be vibrated, repaired or replaced. The operation process of the slewing mechanism 5 is as follows: the slewing motor 5-2 drives the slewing gear 5-1 to mesh and rotate with the slewing gear ring 4, the connecting rod 5-3 connects the slewing motor 5-2 and the slewing plate 5-5, and the four limit rollers 5-4 are fixed on both sides of the 5-5 slewing plate 5-5 and provide support for the slewing plate 5-5. When the slewing gear 5-1 meshes and rotates inside the slewing gear ring 4, the limit rollers 5-4 roll freely on the outer surface of the slewing gear ring 4.

[0072] The slewing mechanism 5 moves on the slewing gear ring 4 to a specified angle position, so that the protection mechanism 6 points to the position that needs to be protected. The operation process of the protection mechanism 6 is as follows: protection is performed at the positions on both sides of the vibrating position of the vibrator 7, the telescopic cylinder 6-1 slowly extends, the telescopic rod 6-3 extends from the sleeve 6-2, the sleeve 6-2 provides guidance and support for the telescopic rod 6-3, and the protection plate 6-4 is slowly pushed out by the telescopic cylinder 6-1, close to the pipe segment 9, until the pipe segment 9 is pressed.

[0073] When the protection mechanism 6 is in place, the vibrator 7 starts to work and gradually breaks the pipe segment. The pipe segment 9 has a certain width. When the area pointed by the vibrator is broken, the travel motor 2 drives the travel wheel 3 to move forward and backward to re-vibrate the remaining pipe segments until the entire pipe segment is completely destroyed in the width direction. During the forward and backward movement, the telescopic cylinder 6-1 retracts and the protection plate 6-4 separates from the pipe segment. In the direction of the tunnel section, when one part of the pipe segment is vibrated and broken, the rotary mechanism 5 is controlled to rotate a certain angle and continue to vibrate until the pipe segment that needs to be repaired is completely removed.

[0074] The process of installing new segments: transport the segments to be installed to the assembly area, use the hoisting hoist to unload the segments from the transport vehicle and place them in the tunnel. The slewing mechanism drives the assembly mechanism to move above the segments to be assembled, the assembly mechanism grabs the segments, the slewing mechanism rotates to the position where they need to be assembled, and the assembly mechanism assembles the segments to complete the installation of the new segments.

[0075] The details not described in detail in the present invention are all conventional technical means known to those skilled in the art.

[0076] The above content shows and describes the basic principles, main features and beneficial effects of the present invention. The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A tunnel segment replacement device, characterized in that: The invention comprises a support frame (1) and a plurality of rotating gear rings (4) arranged on the support frame (1), each rotating gear ring (4) being provided with a rotating mechanism (5) that moves along the rotating gear ring (4), at least one rotating mechanism (5) being provided with a radially retractable protective mechanism (6), at least one rotating mechanism (5) being provided with a vibrator (7), at least one rotating mechanism (5) being provided with an assembling mechanism (8), the vibrator (7) being used for vibrating and crushing a damaged pipe segment (9), the protective mechanism (6) being used for supporting a pipe segment (9) adjacent to the damaged pipe segment (9), and the assembling mechanism (8) being used for assembling a new pipe segment (9).

2. The tunnel segment replacement device according to claim 1, characterized in that: The slewing mechanism (5) comprises a slewing gear (5-1) driven by a slewing motor (5-2), the slewing gear (5-1) being connected to a slewing plate (5-5), the slewing plate (5-5) being connected to a limiting wheel, the slewing gear (5-1) being meshed with gear teeth on a circumferential surface on one side of a slewing gear ring (4), and the limiting wheel being frictionally rolling matched or tooth meshed with a circumferential surface on the other side of the slewing gear ring (4).

3. The tunnel segment replacement device according to claim 2, characterized in that: The rotary gear (5-1) meshes with the gear teeth on the inner circumferential surface or the gear teeth on the outer circumferential surface of the rotary gear ring (4).

4. The tunnel segment replacement device according to claim 2 or 3, characterized in that: The slewing mechanism (5) comprises two slewing gears (5-1) respectively connected to slewing motors (5-2); the two slewing gears (5-1) are respectively located on the left and right sides of the slewing gear ring (4) or on the same side of the slewing gear ring (4); the two slewing motors (5-2) are connected via a connecting rod (5-3) and are connected to the slewing plate (5-5) via the connecting rod (5-3).

5. The tunnel segment replacement device according to claim 4, characterized in that: The two rotating gears (5-1) form a set of driving gears and are located on the same side of the rotating gear ring (4); another set of symmetrical driving gears is provided on the other side of the rotating gear ring (4); two rotating motors (5-2) of the other set of driving gears are connected via a connecting rod (5-3) and are connected to the rotating flat plate (5-5) via the connecting rod (5-3).

6. The tunnel segment replacement device according to any one of claims 1 to 3 and 5, characterized in that: The protection mechanism (6) comprises a protection plate (6-4) and a telescopic drive device and a support guide assembly connected between the protection plate (6-4) and the slewing mechanism (5).

7. The tunnel segment replacement device according to claim 7, characterized in that: The telescopic drive device is a telescopic oil cylinder (6-1) or a telescopic electric cylinder or a telescopic air cylinder, and the support guide component comprises a sleeve (6-2) and a telescopic rod (6-3) plugged into and matched with the sleeve (6-2).

8. The tunnel segment replacement device according to any one of claims 1 to 3, 5 and 7, characterized in that: The support frame (1) is connected to a walking wheel (3) with a walking motor (2) at the bottom and to a hoisting device for hoisting the pipe segment (9) at the top. The plurality of walking wheels (3) are symmetrically arranged about the mid-vertical plane of the support frame (1), and the space between the walking wheels (3) on the left and right sides is a pipe segment transfer channel.

9. The tunnel segment replacement device according to claim 8, characterized in that: Three rotating gear rings (4) are provided, the middle rotating gear ring (4) being provided with two rotating mechanisms (5) on which a vibrator (7) and an assembly mechanism (8) are arranged respectively, and the rotating gear rings (4) on the front and rear sides are each provided with two rotating mechanisms (5) for arranging a protection mechanism (6).

10. A method for replacing a tunnel segment, characterized in that: The following operations are performed using the device for replacing tunnel segments according to any one of claims 1 to 9: The driving support frame (1) moves forward and backward in the tunnel to the segment (9) to be repaired and replaced; Driving a rotary mechanism (5) with a vibrator (7) to move along the rotary gear ring (4) to a specified angle position so that the vibrator (7) points to the pipe segment (9) to be repaired or replaced; Driving the slewing mechanism (5) with the protection mechanism (6) to move along the slewing gear ring (4) to a specified angular position so that the protection mechanism (6) points to a position that needs to be protected; When the protection mechanism (6) is in place, the vibrator (7) starts to work, gradually crushing the pipe segment (9) to be repaired and replaced; In the tunnel section direction, when a portion of the segment (9) to be repaired and replaced is vibrated and crushed, the rotary mechanism (5) with the vibrator (7) is driven to rotate along the rotary gear ring (4) to a certain angle to continue vibrating; In the axial direction of the tunnel, when a portion of the segment (9) to be repaired and replaced is vibrated and crushed, the entire support frame (1) or the rotary gear ring (4) with the vibrator (7) is driven to move in the front-rear direction to continue vibrating; During the movement of the support frame (1), the protection mechanism (6) is in a retracted state; When the pipe segment (9) to be repaired and replaced is completely removed, the rotary mechanism (5) with the assembly mechanism (8) is driven to move along the rotary gear ring (4), and the new pipe segment (9) is installed at the position of the removed pipe segment (9) in cooperation with the assembly mechanism (8).

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