Tunnel construction conversion equipment and tunnel construction conversion method

Abstract

The application relates to the technical field of tunnel construction, in particular to a tunnel construction conversion equipment and a tunnel construction conversion method, which comprise a profiling mounting frame, a fixing unit is mounted on the profiling mounting frame, the fixing unit is used for detachably and fixedly connecting the profiling mounting frame with the inner wall of a tunnel, a movable fixing frame is coaxially connected with two rotating shafts, the rotating shafts are rotationally connected with the profiling mounting frame, a clamping unit is installed on the movable fixing frame, the clamping unit is used for fixing a tunneling equipment, a driving unit is connected with the profiling mounting frame and the movable fixing frame, and is used for rotating the movable fixing frame around the axis of the rotating shafts. The application has the effect of not needing to move the tunneling equipment to the outside of the tunnel for adjustment of the tunneling direction, can save the tunneling equipment reversing time, and reduces the influence of the tunneling equipment reversing on the tunnel construction efficiency.

Description

Technical Field

[0001] This application relates to the field of tunnel construction technology, and in particular to a tunnel construction conversion device and a tunnel construction conversion method. Background Technology

[0002] A tunnel is an engineering structure buried in the strata. The structure of a tunnel includes two parts: the main building and the auxiliary equipment. The main building consists of the tunnel body and the portal. The auxiliary equipment includes passing tunnels, fire-fighting facilities, emergency communication facilities, and flood control and drainage facilities. When tunneling is carried out by tunneling equipment, there is often an angle between the excavation direction of the tunnel body and the excavation direction of drainage facilities, etc., which requires the direction of the tunneling equipment to be changed.

[0003] The prior art discloses a pipe jacking machine for tunnel excavation, which includes an outer shell with a central cavity and an inner shell disposed close to the inner side of the central cavity. It also includes a cutter assembly and a pullback device fixed to the inner shell at an end away from the cutter assembly for dragging the inner shell relative to the outer shell. The cutter assembly includes: a cutter head fixed to the inner shell and capable of entering the central cavity; and a folding cutter holder with a first end hinged to the cutter head and a second end capable of being flipped and folded around the first end into the central cavity.

[0004] Regarding the aforementioned technologies, when switching from tunnel main excavation to drainage facility excavation, it is necessary to change the excavation direction of the pipe jacking machine. In this case, the pipe jacking machine is first moved to the outside of the tunnel via ground rails, and then the orientation of the pipe jacking machine is changed by auxiliary machinery. After the orientation of the pipe jacking machine is adjusted to the correct position, it is moved back to the excavation position inside the tunnel. When the area requiring the change of direction is located deep in the tunnel, this operation consumes a lot of time and affects the efficiency of tunnel construction. Summary of the Invention

[0005] In order to reduce the impact of tunneling equipment reversal on tunnel construction efficiency, this application provides a tunnel construction conversion device and a tunnel construction conversion method.

[0006] The tunnel construction conversion equipment and tunnel construction conversion method provided in this application adopt the following technical solution: Firstly, this application provides a tunnel construction conversion device.

[0007] A tunnel construction conversion device, including A contour-following mounting frame, on which a fixing unit is mounted, the fixing unit being used to detachably and fix the contour-following mounting frame to the tunnel inner wall; A movable fixing frame, on which two rotating shafts are coaxially connected, and the rotating shafts are rotatably connected to the contour mounting frame; A clamping unit is mounted on the movable fixing frame and is used to fix the tunneling equipment. A drive unit is connected to the contour mounting bracket and the movable fixed bracket, and is used to make the movable fixed bracket rotate about the axis of the rotation shaft.

[0008] By adopting the above technical solution, the equipment is first moved to the reversing point of the tunneling equipment, and then radially expanded along the inner wall of the tunnel at the reversing point. After the contour mounting frame is adjusted into position, it is fixed by the fixing unit, and then the tunneling equipment is connected to the movable fixing frame by the clamping unit. Finally, the drive unit drives the movable fixing frame to rotate around the rotating shaft until the orientation of the tunneling equipment is consistent with the target direction. The designed tunnel construction conversion equipment uses the contour mounting frame to support the movable fixing frame and the fixing unit, and the fixing unit to connect and fix the contour mounting frame to the inner wall of the tunnel, improving the positional stability of the contour mounting frame. The rotating shaft enables the rotation of the movable fixing frame, and the cooperation of the movable fixing frame and the clamping unit enables the clamping and fixing of the tunneling equipment. With the cooperation of the drive unit, the tunneling equipment can be reliably changed direction without having to move the tunneling equipment outside the tunnel to adjust the tunneling direction, saving reversing time and reducing the impact of reversing the tunneling equipment on tunnel construction efficiency.

[0009] In one specific implementation, the drive unit includes Two guide rails are respectively disposed on opposite sides of the movable fixed frame, and the guide rails are connected to the contour mounting frame. The guide rails are coaxially disposed with the rotating shaft. Two rotating blocks are slidably connected to the guide rail and connected to the movable fixed frame; Two drive components are provided, one of which is connected to the rotating block and the other to the guide rail, so that the rotating block slides along the set trajectory of the guide rail.

[0010] By adopting the above technical solution, the tunneling equipment is clamped and fixed by the clamping unit, and then the drive component works to make the rotating block rotate around the rotating shaft on the guide slide rail. The rotation of the rotating block drives the movable fixed frame to rotate at the same time, thereby realizing the rotation reversal of the tunneling equipment through the clamping unit; the designed drive unit can drive the rotating block to rotate around the rotating shaft on the guide slide rail through the drive component. The guide slide rail can provide a rotation path for the rotating block, and the rotating block can drive the movable fixed frame to rotate.

[0011] In one specific implementation, the driving component includes A drive motor is connected to the rotating block, and the output shaft of the drive motor and the rotating shaft are aligned axially. A stranded wire reel, which is rotatably connected to the rotating block, and the stranded wire reel is coaxially connected to the output shaft of the drive motor; The traction cable has one end connected to one end of the guide rail, and the other end passes through the rotating block and is wound around and connected to the stranded reel.

[0012] By adopting the above technical solution, an external power supply provides electrical energy for the drive motor to work. The output shaft of the drive motor drives the stranded wire reel to rotate. Since the traction cable is connected to the stranded wire reel, the stranded wire reel applies force to the rotating block while winding the traction cable, in conjunction with the guide rail. This causes the rotating block to rotate around the rotating shaft on the guide rail and drive the movable fixed frame to rotate. The designed drive component facilitates the rotation of the stranded wire reel through the drive motor, and facilitates the winding of the traction cable through the stranded wire reel, thereby cooperating with the traction cable to realize the movement of the rotating block.

[0013] In one specific implementation, a receiving groove for accommodating the traction cable is provided on the outer peripheral side of the guide rail.

[0014] By adopting the above technical solution, the designed receiving groove can provide a space for the traction cable and can limit the position of the traction cable, reducing the possibility of disorderly swaying of the traction cable.

[0015] In one specific implementation, a transition wheel is rotatably connected to the rotating block, and the traction cable is wound around the transition wheel.

[0016] By adopting the above technical solution, the designed transition wheel can convert the sliding friction between the traction cable and the rotating block into rolling friction, thereby improving the service life of the traction cable and the rotating block.

[0017] In one specific implementation, the clamping unit includes Two fixed semi-rings are provided, which are arranged in the same direction as the tunneling equipment and are sleeved on the outer periphery of the tunneling equipment. Multiple linear slide rails are connected to the fixed half-ring and are arranged along the axial direction of the fixed half-ring. A slider for detachable and fixed connection with the tunneling equipment is slidably connected on the linear slide rail. Two clamping assemblies are provided, which are connected to the movable fixing frame and the fixed half-ring, for bringing the two fixed half-rings closer to or further apart from each other.

[0018] By adopting the above technical solution, the slider is first detachably connected to the tunneling equipment. Then, after the tunneling equipment is lifted by an external lifting device, the clamping assembly applies force to the fixed half-ring, causing the fixed half-ring to move closer to the tunneling equipment until the linear slide rail and the slider form a cooperative relationship. At this time, the slider and the linear slide rail are kept relatively stationary. Then, the drive assembly works to make the rotating block rotate around the rotating axis on the guide slide rail. The rotation of the rotating block drives the movable fixed frame to rotate, thereby realizing the rotation reversal of the tunneling equipment through the clamping unit. The designed clamping unit can easily drive the two fixed half-rings to move closer or further apart through the clamping assembly. The linear slide rail can be installed through the fixed half-ring, and the linear slide rail can cooperate with the slider. After the tunneling direction of the tunneling equipment is adjusted to the correct position, the initial feed of the tunneling equipment is realized.

[0019] In one specific implementation, the clamping assembly includes A clamping motor is provided, which is connected to the movable fixed frame. Two guide rods are connected to the fixed half-ring and slidably connected to the movable fixed frame, and a hanging plate is connected between the two guide rods; An adjusting screw is coaxially connected to the clamping motor, the adjusting screw is axially aligned with the guide rod, and the adjusting screw passes through the movable fixing frame and is threadedly connected to the hanging plate.

[0020] By adopting the above technical solution, an external power supply provides electrical energy for the clamping motor. The output shaft of the clamping motor rotates, driving the adjusting screw to rotate. The adjusting screw is threadedly connected to the hanging plate, and through the fixed connection, it drives the fixed half ring to move along the axial direction of the guide rod, thereby realizing the clamping and release of the tunneling equipment. The designed clamping assembly facilitates the rotation of the adjusting screw through the clamping motor, facilitates the sliding of the guide rod through the adjusting screw in conjunction with the hanging plate, and facilitates the control of the direction of movement of the fixed half ring while realizing its movement.

[0021] In one specific implementation, the fixing unit includes Multiple electric telescopic rods are provided, which are connected to the contour mounting frame. A steel rod is coaxially connected to the piston rod of each electric telescopic rod. The steel rod passes through the contour mounting frame and is used to insert into the inner wall of the tunnel.

[0022] By adopting the above technical solution, the designed fixing unit, through the cooperation of electric telescopic rod and steel rod, can improve the positional stability of the contour mounting frame.

[0023] Secondly, this application provides a method for tunnel construction conversion.

[0024] A tunnel construction conversion method, including S1: Equipment movement: Move the equipment to the reversing point of the tunneling equipment and extend it radially along the inner wall of the tunnel at the reversing point; S2: Equipment Installation: After adjusting the contour mounting frame into place, fix it with the fixing unit, and then connect the tunneling equipment to the movable fixing frame with the clamping unit; S3: Rotation and Reversal: The drive unit rotates the movable fixed frame around the rotation axis until the orientation of the tunneling equipment is aligned with the target direction. By adopting the above technical solution, the contour mounting frame can support the movable fixed frame and the fixed unit. The fixed unit can connect and fix the contour mounting frame to the inner wall of the tunnel, improving the positional stability of the contour mounting frame. The rotating shaft can realize the rotation of the movable fixed frame. The cooperation between the movable fixed frame and the clamping unit can realize the clamping and fixing of the tunneling equipment. Then, with the cooperation of the drive unit, the tunneling equipment can be reliably changed in tunneling direction without having to move the tunneling equipment outside the tunnel to adjust the tunneling direction. This can save the tunneling equipment reversing time and reduce the impact of tunneling equipment reversing on tunnel construction efficiency.

[0025] In summary, this application includes at least one of the following beneficial technical effects: 1. The designed tunnel construction conversion equipment uses a contour-following mounting frame to support the movable fixed frame and the fixed unit. The fixed unit connects and fixes the contour-following mounting frame to the tunnel wall, improving the positional stability of the contour-following mounting frame. The rotating shaft enables the rotation of the movable fixed frame. The cooperation between the movable fixed frame and the clamping unit enables the clamping and fixing of the tunneling equipment. Then, with the cooperation of the drive unit, the tunneling equipment can be reliably changed without having to move the tunneling equipment outside the tunnel to adjust the tunneling direction. This saves the tunneling equipment reversing time and reduces the impact of tunneling equipment reversing on tunnel construction efficiency.

[0026] 2. The designed tunnel construction conversion equipment facilitates the movement of two fixed half-rings closer or further apart via clamping components. Linear slide rails can be installed on the fixed half-rings, and these slide rails can cooperate with the sliders to achieve the initial feed of the tunneling equipment after the tunneling direction is adjusted to the correct position.

[0027] 3. The designed tunnel construction conversion equipment uses a clamping motor to easily drive the adjusting screw to rotate. The adjusting screw, in conjunction with the hanging plate, facilitates the sliding of the guide rod. The guide rod, in turn, facilitates the control of the direction of the fixed half-ring movement while simultaneously achieving the fixed half-ring movement. Attached Figure Description

[0028] Figure 1 This is a structural schematic diagram of the tunnel construction conversion equipment according to an embodiment of this application.

[0029] Figure 2yes Figure 2 A three-dimensional structural diagram showing the addition of the clamping unit.

[0030] Figure 3 yes Figure 2 Enlarged view of section A.

[0031] Figure 4 yes Figure 2 A partial structural diagram.

[0032] Figure 5 yes Figure 4 A schematic diagram of the planar structure viewed from below.

[0033] Explanation of reference numerals in the attached drawings: 1. Contouring mounting bracket; 2. Fixing unit; 21. Drive cylinder; 22. Steel rod; 3. Movable fixing bracket; 4. Rotating shaft; 5. Clamping unit; 51. Fixing semi-ring; 52. Linear slide rail; 53. Slider; 54. Clamping assembly; 541. Clamping motor; 542. Guide rod; 543. Hanging plate; 544. Adjusting screw; 6. Drive unit; 61. Guide slide rail; 611. Receiving groove; 62. Rotating block; 63. Drive assembly; 631. Drive motor; 632. Twisted wire reel; 633. Traction cable; 7. Transition wheel. Detailed Implementation

[0034] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0035] This application discloses a tunnel construction conversion equipment and a tunnel construction conversion method.

[0036] In one aspect, embodiments of this application disclose a tunnel construction conversion device.

[0037] Reference Figure 1 A tunnel construction conversion device includes a contour mounting frame 1, a movable fixed frame 3, and two rotating shafts 4. The two rotating shafts 4 are respectively welded to both sides of the movable fixed frame 3 and are coaxially arranged. The end of the rotating shaft 4 away from the movable fixed frame 3 is rotatably connected to the contour mounting frame 1 through a bearing. In this embodiment, the axial direction of the rotating shaft 4 is horizontal.

[0038] Reference Figure 1 and Figure 2 To improve the positional stability of the contour mounting frame 1, the tunnel construction conversion equipment also includes a fixing unit 2. The fixing unit 2 includes multiple electric telescopic rods, which are bolted to the contour mounting frame 1. The electric telescopic rods are staggered from the movable fixing frame 3. A steel rod 22 is coaxially connected to the piston rod of the electric telescopic rod. The steel rod 22 passes through the contour mounting frame 1 and is slidably connected to the contour mounting frame 1, and is used to insert into the inner wall of the tunnel.

[0039] Reference Figure 2 and Figure 3 To facilitate the rotation of the movable fixed frame 3 around the rotating shaft 4, the tunnel construction conversion equipment also includes a drive unit 6. The drive unit 6 is connected to the contour mounting frame 1 and the movable fixed frame 3. First, the equipment is moved to the reversing point of the tunneling equipment and then radially expanded along the inner wall of the tunnel at the reversing point. After the contour mounting frame 1 is adjusted into place, it is fixed by the fixing unit 2. Then, the drive unit 6 drives the movable fixed frame 3 to rotate around the rotating shaft 4.

[0040] Reference Figure 3 The drive unit 6 includes two guide rails 61, two rotating blocks 62, and two drive components 63. The two guide rails 61 are located on opposite sides of the movable fixed frame 3, and the guide rails 61 are coaxially arranged with the rotating shaft 4. The guide rails 61 are welded to the contour mounting frame 1 or fixed by countersunk bolts. The two rotating blocks 62 are slidably connected to the two guide rails 61, and the rotating blocks 62 are welded to the movable fixed frame 3. The drive components 63 are connected to the rotating blocks 62 and the guide rails 61, so that the rotating blocks 62 slide along the set trajectory of the guide rails 61.

[0041] Reference Figure 3 The drive assembly 63 includes a drive motor 631, a stranded coil 632, and a traction cable 633. The drive motor 631 is bolted to the rotating block 62, and the output shaft of the drive motor 631 and the rotating shaft 4 are axially aligned. The stranded coil 632 is rotatably connected to the rotating block 62, and the stranded coil 632 and the output shaft of the drive motor 631 are coaxially connected via a coupling. One end of the traction cable 633 is welded and fixed to the guide rail 61, and the other end passes through the rotating block 62 and is wound and welded to the stranded coil 632. An external power supply provides electrical energy for the drive motor 631 to work. The output shaft of the drive motor 631 drives the stranded coil 632 to rotate. Since the traction cable 633 is connected to the stranded coil 632, the stranded coil 632, while winding the traction cable 633, applies force to the rotating block 62 in conjunction with the guide rail 61, causing the rotating block 62 to rotate around the rotating shaft 4 on the guide rail 61 and drive the movable fixed frame 3 to rotate.

[0042] Reference Figure 3 To facilitate the accommodation of the traction cable 633 and limit its position, a receiving groove 611 for accommodating the traction cable 633 is provided on the outer periphery of the guide slide rail 61. The receiving groove 611 and the rotating shaft 4 are coaxially arranged. To extend the service life of the rotating block 62 and the traction cable 633, a transition wheel 7 is rotatably connected to the rotating block 62. The traction cable 633 is wound around the transition wheel 7, so that the sliding friction between the traction cable 633 and the rotating block 62 is changed to rolling friction.

[0043] Reference Figure 4 and Figure 5 In order to fix the tunneling equipment and adjust the tunneling direction of the tunneling equipment in conjunction with the rotation of the movable fixing frame 3, the tunnel construction conversion equipment also includes a clamping unit 5. The clamping unit 5 is installed on the movable fixing frame 3 and is used to fix the tunneling equipment. In order to facilitate the operation of the clamping unit 5, the contour mounting frame 1 and the movable fixing frame 3 are provided with clearance holes for the hoisting rope to pass through.

[0044] Reference Figure 4 and Figure 5 The clamping unit 5 includes a fixed half-ring 51, a linear slide rail 52, and a clamping assembly 54. There are two fixed half-rings 51, and the axial direction of the fixed half-rings 51 is set in the same direction as the tunneling equipment. The fixed half-rings 51 are sleeved on the outer periphery of the tunneling equipment. There are multiple linear slide rails 52, which are welded and fixed to the fixed half-rings 51 and are set along the axial direction of the fixed half-rings 51. A slider 53 for detachably and fixedly connected to the linear slide rail 52 is slidably connected to the linear slide rail 52. In this application, the number of linear slide rails 52 can be two, three, or four, as long as they can cooperate with the slider 53 to achieve stable clamping of the tunneling equipment. In this embodiment, there are two linear slide rails 52, and the two linear slide rails 52 are welded and fixed to the two fixed half-rings 51 respectively.

[0045] Reference Figure 4 and Figure 5 There are two clamping assemblies 54. The clamping assemblies 54 are connected to the movable fixed frame 3 and to the fixed half ring 51. They are used to move the two fixed half rings 51 closer to each other or further apart. The clamping assembly 54 includes a clamping motor 541, two guide rods 542, a hanging plate 543 and an adjusting screw 544. The clamping motor 541 is bolted to the movable fixed frame 3, and the axial direction of the output shaft of the clamping motor 541 is consistent with the axial direction of the rotating shaft 4. The axial directions of the two guide rods 542 are consistent with the axial direction of the rotating shaft 4. The guide rods 542 are welded to the fixed half ring 51 and are slidably connected to the movable fixed frame 3. The hanging plate 543 is welded to the two guide rods 542.

[0046] Reference Figure 4 and Figure 5The adjusting screw 544 is coaxially connected to the output shaft of the clamping motor 541 via a coupling, and the axial direction of the adjusting screw 544 is aligned with that of the guide rod 542. The adjusting screw 544 passes through the movable fixed frame 3 and is offset from the movable fixed frame 3. The adjusting screw 544 is threadedly connected to the hanging plate 543. An external power supply provides electrical energy for the operation of the clamping motor 541. The rotation of the output shaft of the clamping motor 541 drives the adjusting screw 544 to rotate. The adjusting screw 544 is threadedly connected to the hanging plate 543, and through the fixed connection, it drives the fixed half ring 51 to move along the axial direction of the guide rod 542, thereby realizing the clamping and release of the tunneling equipment.

[0047] The implementation principle of a tunnel construction conversion equipment according to an embodiment of this application is as follows: First, the equipment is moved to the reversing point of the tunneling equipment, and the radial extension is made along the inner wall of the tunnel at the reversing point; then, the contour mounting frame 1 is adjusted into place and fixed by the fixing unit 2; then, the slider 53 is detachably connected to the tunneling equipment; then, the tunneling equipment is lifted by the external lifting equipment, and the clamping component 54 applies force to the fixed half ring 51, so that the fixed half ring 51 moves closer to the tunneling equipment until the linear slide rail 52 and the slider 53 form a cooperative relationship. At this time, the slider 53 and the linear slide rail 52 are kept in a relatively static relationship. Then, the driving component 63 works to make the rotating block 62 rotate around the rotating shaft 4 on the guide slide rail 61. While the rotating block 62 rotates, it drives the movable fixing frame 3 to rotate, thereby realizing the rotation reversal of the tunneling equipment through the clamping unit 5.

[0048] Secondly, this application discloses a tunnel construction conversion method.

[0049] A tunnel construction conversion method, using the tunnel construction conversion equipment disclosed in the first aspect of the embodiments of this application, S1: Equipment movement: move the equipment to the reversing point of the tunneling equipment, and expand the radial length along the inner wall of the tunnel at the reversing point; S2: Equipment installation: After adjusting the contour mounting frame 1 into place, fix it through the fixing unit 2, and then connect the tunneling equipment to the movable fixing frame 3 through the clamping unit 5; S3: Rotation and reversal: The drive unit 6 drives the movable fixed frame 3 to rotate around the rotating shaft 4 until the orientation of the tunneling equipment is consistent with the target direction.

[0050] By implementing the above-mentioned tunnel construction conversion method, the movable fixed frame 3 and the fixed unit 2 can be supported by the contour mounting frame 1. The fixed unit 2 can connect and fix the contour mounting frame 1 to the inner wall of the tunnel, improving the positional stability of the contour mounting frame 1. The movable fixed frame 3 can be rotated by the rotating shaft 4. The movable fixed frame 3 and the clamping unit 5 can clamp and fix the tunneling equipment. Then, with the cooperation of the drive unit 6, the tunneling equipment can be reliably changed without having to move the tunneling equipment outside the tunnel to adjust the tunneling direction. This can save the tunneling equipment reversing time and reduce the impact of tunneling equipment reversing on tunnel construction efficiency.

[0051] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A tunnel construction conversion device, characterized in that: include A contour mounting frame (1) is provided, and a fixing unit (2) is installed on the contour mounting frame (1). The fixing unit (2) is used to detachably and fix the contour mounting frame (1) to the inner wall of the expanded tunnel. A movable fixing frame (3) is provided, on which two rotating shafts (4) are coaxially connected, and the rotating shafts (4) are rotatably connected to the contour mounting frame (1). A clamping unit (5) is mounted on the movable fixing frame (3) and is used to fix the tunneling equipment. A drive unit (6) is connected to the contour mounting bracket (1) and the drive unit (6) is connected to the movable fixing bracket (3) for rotating the movable fixing bracket (3) around the axis of the rotating shaft (4). The drive unit (6) includes two arc-shaped guide rails (61), which are respectively disposed on opposite sides of the movable fixing frame (3) and connected to the contour mounting frame (1). The center of the guide rail (61) is coaxial with the rotating shaft (4); two rotating blocks (62), which are slidably connected to the guide rails (61) and connected to the movable fixing frame (3); and two drive components (63), which are connected to the rotating blocks (62) and the guide rails (61) so that the rotating blocks (62) slide along the trajectory of the guide rails (61). The drive assembly (63) includes a drive motor (631) connected to the rotating block (62), and the output shaft of the drive motor (631) and the rotating shaft (4) are axially aligned; a stranded wire reel (632) rotatably connected to the rotating block (62), and the stranded wire reel (632) is coaxially connected to the output shaft of the drive motor (631); and a traction cable (633), one end of which is connected to one end of the guide rail (61), and the other end passes through the rotating block (62) and is wound around and connected to the stranded wire reel (632). The clamping unit (5) includes two fixed half-rings (51), which are arranged in the same direction as the tunneling equipment and are sleeved on the outer periphery of the tunneling equipment; multiple linear slide rails (52), which are connected to the fixed half-rings (51) and are arranged along the axial direction of the fixed half-rings (51). A slider (53) for detachably and fixedly connected to the tunneling equipment is slidably connected on the linear slide rails (52); and two clamping assemblies (54), which are connected to the movable fixing frame (3) and the fixed half-rings (51) for making the two fixed half-rings (51) move closer to or further away from each other.

2. The tunnel construction conversion equipment according to claim 1, characterized in that: The guide rail (61) has a receiving groove (611) on its outer periphery for accommodating the traction cable (633).

3. The tunnel construction conversion equipment according to claim 1, characterized in that: A transition wheel (7) is rotatably connected to the rotating block (62), and the traction cable (633) is wound around the transition wheel (7).

4. The tunnel construction conversion equipment according to claim 1, characterized in that: The clamping assembly (54) includes a clamping motor (541) connected to the movable fixing frame (3); two guide rods (542) connected to the fixed half ring (51) and slidably connected to the movable fixing frame (3), and a hanging plate (543) connected between the two guide rods (542); and an adjusting screw (544) coaxially connected to the clamping motor (541), the adjusting screw (544) and the guide rods (542) being axially aligned, and the adjusting screw (544) passing through the movable fixing frame (3) and threadedly connected to the hanging plate (543).

5. The tunnel construction conversion equipment according to claim 1, characterized in that: The fixing unit (2) includes multiple electric telescopic rods, which are connected to the contour mounting frame (1). A steel rod (22) is coaxially connected to the piston rod of the electric telescopic rod. The steel rod (22) passes through the contour mounting frame (1) and is used to insert into the inner wall of the tunnel.

6. A tunnel construction conversion method, characterized in that: The tunnel construction conversion equipment according to any one of claims 1-5 includes S1: Equipment movement: Move the equipment to the reversing point of the tunneling equipment and extend it radially along the inner wall of the tunnel at the reversing point; S2: Equipment installation: After adjusting the contour mounting frame (1) into place, fix it through the fixing unit (2), and then connect the tunneling equipment to the movable fixing frame (3) through the clamping unit (5); S3: Rotation and reversal: The drive unit (6) drives the movable fixed frame (3) to rotate around the rotating shaft (4) until the orientation of the tunneling equipment is consistent with the target direction.

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