An inverted arch block transfer device for use in a tunnel

Abstract

The present application relates to the technical field of open TBM construction, and discloses a inverted arch block transfer device in a tunnel, which comprises a power system, a hydraulic transmission system, a running system, a steering system, a braking system, a hoisting system and a portal, the portal comprises a horizontal frame at the top and two vertical frames on both sides of the horizontal frame, the horizontal frame and the vertical frame are perpendicular to each other, the vertical frame is fixedly connected by two column beams and a plurality of horizontal beams, the hoisting system comprises a hoist device, a translation device and a hoisting clamp, the translation device comprises a translation plate assembly and a translation driving device for driving the translation plate assembly to move, the hoisting and translation of the inverted arch block are realized, so that the transfer and transportation of the inverted arch block are easily realized, the automatic clamp and the hoisting system are matched with each other, the automatic clamp quickly completes the clamping of the inverted arch block, and then the hoisting system is matched to realize the rapid transfer, and the transfer time of the inverted arch block can be greatly shortened.

Description

Technical Field

[0001] This invention relates to the technical field of open-type TBM construction, and more particularly to a transfer device for invert blocks in tunnels. Background Technology

[0002] In the construction of open-face TBM tunnels, the excavation of the TBM and the installation of the invert blocks are carried out simultaneously. After each cycle of excavation, the shield machine must ensure that the invert blocks are transported to the invert block installation area and installed. The TBM's forward movement is achieved by the extension track laid on the top surface of the invert blocks. Therefore, only when the invert blocks are installed in a timely and accurate manner can the TBM's safe and efficient excavation be ensured. Otherwise, the TBM's forward movement needs to be suspended, which will greatly affect the construction speed.

[0003] Currently, all material transport during open-face TBM excavation utilizes MSV trackless vehicles. These vehicles are bidirectional and can transport materials within the tunnel without turning around. However, MSV vehicles are expensive. In long or even extra-long tunnels, relying solely on MSV vehicles for transport would result in excessive costs due to the large number of MSVs used. Currently, in some extra-long tunnels, a combination of conventional and MSV vehicles is used to reduce MSV usage. Lifting equipment is installed within the tunnel to transfer goods between the two types of vehicles. However, existing transfer systems generally take a long time to lift and transfer materials, leading to low efficiency and potentially impacting construction progress. Summary of the Invention

[0004] The purpose of this invention is to provide a transfer device for inverted arch blocks in tunnels, so as to solve the problem of inefficient transfer of existing transfer devices.

[0005] This invention is achieved through the following technical solution:

[0006] A transfer device for invert blocks in a tunnel includes a power system, a hydraulic transmission system, a travel system, a steering system, a braking system, a lifting system, and a gantry. The gantry includes a horizontal frame at the top and two vertical frames on either side of the horizontal frame. The horizontal frame and the vertical frames are perpendicular to each other. Each vertical frame is formed by two column beams fixedly connected to multiple horizontal beams. A frequency converter cabinet, a power distribution cabinet, and a hydraulic control cabinet are fixedly mounted on one side of the vertical frame of the horizontal frame. A main hydraulic pump and a hydraulic oil tank are fixedly mounted on the other side of the vertical frame. The lifting system includes a winch device, a translation device, and lifting clamps. The moving device includes a translation plate assembly and a translation drive device for driving the translation plate assembly to move. The translation plate assembly includes sliding wheels, a sliding connecting bar, and a sliding frame. The translation plate assembly is slidably mounted on the horizontal frame. The sliding connecting bar is slidably mounted on the top of the sliding frame. Two sliding wheels are rotatably mounted at both ends of the sliding connecting bar. Two sliding wheels are rotatably mounted on the sliding frame. A fixing block is provided on one side of the sliding connecting bar. The fixing block is connected to the sliding connecting bar by a tension spring. A fixing bar is provided on the other side of the sliding connecting bar. A damping rod is provided between the fixing bar and the sliding connecting bar.

[0007] The winch device includes a steel cable, a first fixed pulley, and a second fixed pulley. The winch is fixed on the horizontal beam on the vertical frame. One end of the steel cable is fixed to the winding drum of the winch. The middle part of the steel cable is guided by the first fixed pulley and the second fixed pulley. The height of the first fixed pulley is higher than that of the sliding pulley. The steel cable is wound in an S-shape at the first fixed pulley and the sliding pulley.

[0008] By combining the sliding connecting strip with the sliding frame, along with the first fixed pulley, the sliding wheel, and the steel cable wound in an S-shape between them, the inverted arch block is tilted at a small angle during its horizontal acceleration and deceleration movement. This small tilt reduces the horizontal inertia generated during the horizontal acceleration and deceleration of the inverted arch block. Generally, the tilt angle does not exceed 2 degrees and will not affect the hoisting of the inverted arch block. By converting the swing inertia generated by the inverted arch block in the horizontal direction to other directions, the horizontal swing inertia of the entire device during horizontal movement and hoisting can be reduced to a large extent, improving the stability of the device during hoisting and further increasing the speed of horizontal hoisting, ultimately achieving efficient hoisting.

[0009] The damping rod includes a piston rod and a cylinder rod. The end of the piston rod of the damping rod is fixed to the fixed bar. A limiting block is also fixed on the sliding connecting bar. A through hole is opened on the limiting block. The cylinder rod of the damping rod passes through the through hole of the limiting block. A limiting ring is provided on the side of the limiting block near the fixed bar. The limiting ring is fixed to the damping rod.

[0010] A sliding sleeve is fixed on the sliding connecting strip. The sliding sleeve is slidably engaged with the guide optical shaft. The two ends of the guide optical shaft are fixed to the sliding frame through end blocks. The sliding sleeve and the guide optical shaft constitute a sliding guide device. Two or more of these sliding guide devices are evenly distributed along the length of each sliding connecting strip. The translation drive device includes a horizontal hydraulic rod. The sliding frame and the horizontal frame are connected through the horizontal hydraulic rod.

[0011] The lifting clamp includes an arched claw, a lifting frame, a lead screw, and a motor. The lead screw is rotatably mounted inside the lifting frame. The arched claw includes a clamp and a nut block. The nut block is threadedly connected to the lead screw. The lifting frame is a double-threaded lead screw with opposite thread directions on both sides. Two mirror-image arched claws are provided on both sides of the lifting frame. The motor is fixed on the lifting frame. The motor shaft is driven to the middle position of the lead screw via a chain and sprocket mechanism.

[0012] The power system includes the main hydraulic pump, which consists of a three-phase asynchronous motor and an oil pump.

[0013] The hydraulic transmission system includes four traveling wheels, which are respectively located at the bottom of different column beams. The four traveling wheels consist of rims and tires. Two of the four traveling wheels are drive wheels, and the other two are driven wheels. A hydraulic motor is installed at the center of each drive wheel.

[0014] Both the drive wheel and the driven wheel are controlled to steer by the steering system, which includes a steering cylinder. The drive wheel and the driven wheel are rotatably mounted on a wheel frame. The wheel frame is rotatably engaged with the bottom of the vertical frame. One end of the piston rod of the steering cylinder is hinged to the wheel frame, and one end of the cylinder body of the steering cylinder is hinged to the vertical frame.

[0015] The sliding connecting strip is also fixedly provided with a locking pin telescopic component, which includes a telescopically controllable locking pin and a driving component for controlling the extension and retraction of the locking pin. A locking pin hole that cooperates with the locking pin is opened on the sliding frame.

[0016] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0017] 1. This invention enables the entire equipment to move longitudinally along the tunnel's longitudinal axis through a walking system. By controlling the hydraulic motor and horizontal cylinder inside the invert arch crane through the main hydraulic pump, the invert arch blocks can be lifted and moved horizontally, thus easily realizing the transfer and transportation of the invert arch blocks. This saves a lot of investment in invert arch block transport vehicles (MSVs), reduces a lot of construction costs, and provides a guarantee for the rapid excavation of extra-long open-type TBM tunnels.

[0018] 2. The present invention cleverly adopts a gantry design, which does not affect the passage of other material transport vehicles. When used in conjunction with MSV vehicles and invert block transfer vehicles, the equipment shortens the transport distance and time of MSV vehicles for invert blocks and improves production efficiency.

[0019] 3. The transfer lifting device of this invention is controlled by a handle, making it simple to operate and highly flexible. This transfer lifting device can meet the requirements of "one machine for multiple uses," as it can be used for the intermediate transfer of inverted arch blocks and for the transfer of other materials.

[0020] 4. This invention utilizes an automatic clamp and a lifting system to work together. The automatic clamp quickly clamps the inverted arch block, and the lifting system enables rapid transfer, which greatly shortens the transfer time of the inverted arch block and ensures the stability of TBM tunnel construction. Attached Figure Description

[0021] The accompanying drawings, which are included to provide a further understanding of embodiments of the invention and form part of this application, do not constitute a limitation thereof. In the drawings:

[0022] Figure 1 This is a schematic diagram of the structure of the present invention;

[0023] Figure 2 For the present invention Figure 1 Cross-sectional view at point AA;

[0024] Figure 3 For the present invention Figure 1 Cross-sectional view at point BB;

[0025] Figure 4 For the present invention Figure 1 Cross-sectional view at CC;

[0026] Figure 5 For the present invention Figure 4 Enlarged view at point D;

[0027] Figure 6 For the present invention Figure 4 Cross-sectional view at the EE section;

[0028] Figure 7 This is a schematic diagram of the structure of the inverted arch block transfer vehicle in this invention;

[0029] Figure 8 This is a simplified diagram showing the state of the inverted arch block during hoisting in this invention.

[0030] The reference numerals in the attached drawings represent: 1-gantry, 101-vertical frame, 1011-column beam, 1012-horizontal beam, 102-horizontal frame, 2-hydraulic control cabinet, 3-frequency converter cabinet, 4-power distribution cabinet, 5-control cabinet, 6-support leg, 7-traveling wheel, 8-steering cylinder, 9-winch, 10-hydraulic oil tank, 11-main hydraulic pump, 13-sliding frame, 14-steel cable, 15-sliding connecting strip, 16-guide optical axis, 17-sliding sleeve, 18-first fixed pulley, 19-sliding wheel, 20-fixed block, 21-second fixed pulley, 22-horizontal hydraulic rod, 23-tension spring, 24-locking pin telescopic component, 25-damping rod, 26-limiting block, 27-inverted arch hook, 28-lifting frame, 29-screw, 30-motor, 50-inverted arch block. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of the present invention are only used to explain the present invention and are not intended to limit the present invention. Example

[0032] like Figures 1 to 8 As shown, this embodiment includes a power system, a hydraulic transmission system, a travel system, a steering system, a braking system, a lifting system, and a gantry 1. The gantry 1 includes a top horizontal frame 102 and two vertical frames 101 on both sides of the horizontal frame 102. The horizontal frame 102 and the vertical frames 101 are perpendicular to each other. The vertical frames 101 are formed by two column beams 1011 and multiple horizontal beams 1012. A frequency converter cabinet 3, a power distribution cabinet 4, and a hydraulic control cabinet 2 are fixedly installed on the vertical frame 101 on one side of the horizontal frame 102. A main hydraulic pump 11 and a hydraulic oil tank 10 are fixedly installed on the other side of the vertical frame 101.

[0033] The lifting system includes a winch, a translation device, and a lifting clamp. The translation device includes a translation plate assembly and a translation drive device for moving the translation plate assembly. The translation plate assembly includes sliding wheels 19, sliding connecting bars 15, and a sliding frame 13. The translation plate assembly is slidably mounted on the horizontal frame 102. The translation drive device includes a horizontal hydraulic rod 22. The sliding frame 13 is connected to the horizontal frame 102 via the horizontal hydraulic rod 22. The translation is controlled by extending and retracting the horizontal hydraulic rod 22. The plate assembly moves on the horizontal frame 102. The sliding connecting strip 15 is slidably disposed on the top of the sliding frame 13. Two sliding wheels 19 are rotatably disposed at both ends of the sliding connecting strip 15. Two sliding wheels 19 are rotatably disposed on the sliding frame 13. A fixing block 20 is provided on one side of the sliding connecting strip 15. The fixing block 20 is connected to the sliding connecting strip 15 by a tension spring 23. A fixing strip is provided on the other side of the sliding connecting strip 15. A damping rod 25 is provided between the fixing strip and the sliding connecting strip 15.

[0034] In this embodiment, the damping rod 25 includes a piston rod and a cylinder rod. The piston rod end of the damping rod 25 is fixed to the fixing strip. A limiting block 26 is also fixed on the sliding connecting strip 15. A through hole is provided on the limiting block 26. The cylinder rod of the damping rod 25 passes through the through hole of the limiting block 26. A limiting ring is provided on the side of the limiting block 26 near the fixing strip. The limiting ring is fixed to the damping rod 25.

[0035] The winch device includes a steel cable 14, a first fixed pulley 18, and a second fixed pulley 21. The winch 9 is fixed to the horizontal beam 1012 on the vertical frame 101. One end of the steel cable 14 is fixed to the winding drum of the winch 9. The middle part of the steel cable 14 is guided by the first fixed pulley 18 and the second fixed pulley 21. The first fixed pulley 18 is positioned higher than the sliding pulley 19. The steel cable 14 is wound in an S-shape between the first fixed pulley 18 and the sliding pulley 19. Figure 6 The translation plate assembly is controlled to move to the right, and as the entire translation plate assembly moves to the right, the portion of the steel cable 14 below the sliding wheel 19 gradually shortens.

[0036] Furthermore, a sliding sleeve 17 is fixed on the sliding connecting strip 15. The sliding sleeve 17 is slidably engaged with the guide optical shaft 16. The two ends of the guide optical shaft 16 are fixed to the sliding frame 13 through end blocks. The sliding sleeve 17 and the guide optical shaft 16 constitute a sliding guide device. Two or more of these sliding guide devices are evenly distributed along the length of each sliding connecting strip 15. The cooperation of the sliding guide devices between the sliding frame 13 and the sliding connecting strip 15 improves the stability of the relative sliding motion between the sliding frame 13 and the sliding connecting strip 15.

[0037] When using, refer to Figure 1 , Figure 4 as well as Figure 6 , Figure 1 On the right is a standard inverted arch block 50 transport vehicle, and on the left is an MSV vehicle. The horizontal hydraulic rod 22 extends, pushing the translation plate assembly to move the entire assembly directly above the inverted arch block 50 on the inverted arch block 50 transport vehicle. The winch 9 lowers the lifting clamp, which then clamps the inverted arch block 50. After clamping, the winch 9 controls the steel cable 14 to lift the inverted arch block 50. After lifting, the horizontal hydraulic rod 22 moves horizontally from right to left. As the translation plate assembly begins to move to the left, the horizontal hydraulic rod 22 directly pulls the sliding frame 13. A tension spring 23 is provided between the sliding frame 13 and the sliding connecting strip 15. (Reference) Figure 8 When the sliding frame 13 begins to accelerate to the left, the distance between the sliding wheel 19 and the sliding connecting bar 15 on the sliding frame 13 decreases. At this time, the control winch 9 does not work. When the translation plate assembly moves to the left, it also moves towards the underside of the inverted arch block 50 being hoisted. The steel cable 14 on the left side of the inverted arch block 50 remains more taut under the pull of the tension spring 23, while the steel cable 14 on the right side of the inverted arch block 50 is more relaxed. The inverted arch block 50 itself rotates as it moves to the left and down. Through the cooperation of the sliding connecting bar 15 and the sliding frame 13, the swing inertia generated in the horizontal direction due to acceleration when the inverted arch block 50 begins to be hoisted horizontally is converted to other directions. This can greatly reduce the horizontal swing inertia of the entire device during horizontal movement and hoisting, improve the stability of the device during hoisting, and further increase the speed of the device during horizontal hoisting, ultimately achieving efficient hoisting.

[0038] During the horizontal hoisting of the inverted arch block 50, further reference was made to... Figure 8During the deceleration process, the inverted arch block 50 will gradually return to a horizontal state from the tilted state shown in the figure. When it returns to a horizontal state, the steel cable 14 on the left side of the inverted arch block 50 is pulled. The steel cable 14 pulls the sliding connecting bar 15 to move to the left. The distance between the sliding wheel 19 on the sliding connecting bar 15 and the sliding wheel 19 on the sliding frame 13 increases. The sliding connecting bar 15 moves to the left and squeezes the damping rod 25. By squeezing the damping rod 25 through the sliding connecting bar 15, the damping rod 25 inefficiently removes most of the swing inertia generated by the inverted arch block 50, thereby achieving smooth operation.

[0039] Furthermore, a locking pin telescopic component 24 is also fixedly provided on the sliding connecting bar 15. The locking pin telescopic component 24 includes a telescopically controllable locking pin and a driving component that controls the extension and retraction of the locking pin. The driving component can drive the locking pin in a hydraulic or pneumatic manner. A locking pin hole is provided on the sliding frame 13. When the locking pin is aligned with the locking pin hole, the lifting clamp below the translation plate assembly is in a horizontal state. After the lifting clamp clamps the arch block 50, the locking pin is pulled out from the locking pin hole. After the translation plate assembly completes the horizontal movement of the arch block, the locking pin assembly is inserted into the locking pin hole. The purpose is to keep the lifting clamp in a horizontal state when it is idle and not clamped.

[0040] The lifting clamp includes an arch hook 27, a lifting frame 28, a lead screw 29, and a motor 30. The lead screw 29 is rotatably mounted inside the lifting frame 28. The arch hook 27 includes a clamping hook and a nut block. The nut block is threadedly connected to the lead screw 29. The lifting frame 28 is a double-threaded lead screw 29 with opposite thread directions on both sides. Two mirror-image arch hooks 27 are provided on both sides of the lifting frame 28. The motor 30 is fixed on the lifting frame 28. The motor shaft of the motor 30 is driven to the middle position of the lead screw 29 via a chain and sprocket mechanism. The motor 30 controls the rotation of the lead screw 29, and the rotation of the lead screw 29 controls the two arch hooks 27 to move closer or further apart, thereby completing the clamping and releasing of the arch block 50.

[0041] The power system includes the main hydraulic pump 11, which consists of a three-phase asynchronous motor and an oil pump. The main hydraulic pump 11 provides the power source for the entire transfer lifting device.

[0042] The hydraulic transmission system includes four traveling wheels 7, which are respectively located at the bottom of different column beams 1011. The four traveling wheels 7 consist of rims and tires. The rims are made of steel and the tires are solid tires, which facilitates reliable driving on the construction site and avoids tire blowouts.

[0043] Advantageously, two of the four traveling wheels 7 are driving wheels and the other two are driven wheels. A hydraulic motor is installed at the center of the driving wheel, and the hydraulic motor is driven by the main hydraulic pump 11, thereby causing the transfer hoist to move longitudinally along the tunnel.

[0044] Furthermore, both the drive wheel and the driven wheel are steered by the steering system, which includes a steering cylinder 8. The drive wheel and the driven wheel are rotatably mounted on a wheel frame, which is rotatably engaged with the bottom of the vertical frame 101. One end of the piston rod of the steering cylinder 8 is hinged to the wheel frame, and one end of the cylinder body of the steering cylinder 8 is hinged to the vertical frame 101. The travel direction of each walking wheel 7 is controlled by the extension and retraction of the steering cylinder 8, thereby realizing the overall steering of the device.

[0045] Meanwhile, two support legs 6 are provided on both sides of each vertical frame. After the lifting clamp moves to the designated position, the four support legs 6 brace against the ground, so that the four traveling wheels 7 are off the ground, reducing the load on the four traveling wheels 7 during the transfer of the arch block 50 and effectively improving the service life of the traveling wheels 7.

[0046] It should be noted that the steering system adopts multi-mode steering. The steering system can control the two axes of the vehicle separately or simultaneously. When the vehicle needs to turn, the steering mode is selected first. The steering modes include four types: drive wheel steering, driven wheel steering, diagonal steering, and figure-eight steering.

[0047] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A device for inverted arch block transfer in a tunnel, comprising a power system, a hydraulic transmission system, a running system, a steering system, a braking system, a hoisting system and a portal (1), characterized in that: The gantry (1) includes a top horizontal frame (102) and two vertical frames (101) on both sides of the horizontal frame (102). The horizontal frame (102) and the vertical frame (101) are perpendicular to each other. The vertical frame (101) is formed by two column beams (1011) and multiple horizontal beams (1012). On one side of the horizontal frame (102), the vertical frame (101) is fixedly equipped with a frequency converter cabinet (3), a power distribution cabinet (4), a frequency converter cabinet (3), and a hydraulic control cabinet (2). On the other side of the vertical frame (101), the main hydraulic pump (11) and the hydraulic oil tank (10) are fixedly equipped. The lifting system includes a winch, a translation device and a lifting clamp. The translation device includes a translation plate assembly and a translation drive device for driving the translation plate assembly to move. The translation plate assembly includes a sliding wheel (19), a sliding connecting bar (15) and a sliding frame (13). The translation plate assembly is slidably mounted on the horizontal frame (102). The sliding connecting strip (15) is slidably disposed on the top of the sliding frame (13). Two sliding wheels (19) are rotatably disposed at both ends of the sliding connecting strip (15). Two sliding wheels (19) are rotatably disposed on the sliding frame (13). A fixing block (20) is provided on one side of the sliding connecting strip (15). The fixing block (20) is connected to the sliding connecting strip (15) by a tension spring (23). A fixing strip is provided on the other side of the sliding connecting strip (15). A damping rod (25) is provided between the fixing strip and the sliding connecting strip (15). The winch device includes a steel cable (14), a first fixed pulley (18), and a second fixed pulley (21). The winch (9) is fixed on the horizontal beam (1012) on the vertical frame (101). One end of the steel cable (14) is fixed to the winding drum of the winch (9). The middle part of the steel cable (14) is guided by the first fixed pulley (18) and the second fixed pulley (21). The first fixed pulley (18) is set at a higher height than the sliding pulley (19). The steel cable (14) at the pulley (18) and the sliding wheel (19) is wound in an S-shape; through the cooperation of the sliding connecting strip (15) and the sliding frame (13), and combined with the first fixed pulley (18), the sliding wheel (19) and the steel cable (14) wound in an S-shape between them, the inverted arch block (50) is tilted at a small angle during the horizontal acceleration and deceleration movement of the inverted arch block (50), and the horizontal inertia generated during the horizontal acceleration and deceleration movement of the inverted arch block (50) is reduced by using the small angle tilt.

2. The inverted block transfer device for use in a tunnel according to claim 1, wherein: The damping rod (25) includes a piston rod and a cylinder rod. The piston rod end of the damping rod (25) is fixed on the fixing bar. A limiting block (26) is also fixed on the sliding connecting bar (15). A through hole is opened on the limiting block (26). The cylinder rod of the damping rod (25) passes through the through hole of the limiting block (26). A limiting ring is provided on the side of the limiting block (26) near the fixing bar. The limiting ring is fixed on the damping rod (25).

3. The inverted block transfer device for use in a tunnel according to claim 1, wherein: A sliding sleeve (17) is fixed on the sliding connecting strip (15). The sliding sleeve (17) is slidably engaged with the guide optical shaft (16). The two ends of the guide optical shaft (16) are fixed to the sliding frame (13) through end blocks. The sliding sleeve (17) and the guide optical shaft (16) constitute a sliding guide device. Two or more of these sliding guide devices are evenly distributed along the length of each sliding connecting strip (15).

4. The inverted block transfer device for use in a tunnel of claim 1, wherein: The translation drive device includes a horizontal hydraulic rod (22), and the sliding frame (13) is connected to the horizontal frame (102) through the horizontal hydraulic rod (22).

5. The inverted block transfer device for use in a tunnel of claim 1, wherein: The lifting clamp includes an arch hook (27), a lifting frame (28), a lead screw (29), and a motor (30). The lead screw (29) is rotatably mounted inside the lifting frame (28). The arch hook (27) includes a clamp and a nut block. The nut block is threadedly connected to the lead screw (29). The lifting frame (28) is a double-threaded lead screw (29). The threads on both sides of the lead screw (29) are in opposite directions. Two mirror-image arch hooks (27) are provided on both sides of the lifting frame (28). The motor (30) is fixed on the lifting frame (28). The motor shaft (30) of the motor (30) is driven by a chain and sprocket mechanism to the middle position of the lead screw (29).

6. The invert block transfer device for use in tunnels according to claim 1, characterized in that: The power system includes the main hydraulic pump (11), which consists of a three-phase asynchronous motor and an oil pump.

7. The invert block transfer device for use in tunnels according to claim 1, characterized in that: The hydraulic transmission system includes four traveling wheels (7), which are respectively located at the bottom of different column beams (1011). The four traveling wheels (7) are composed of rims and tires. Two of the four traveling wheels (7) are driving wheels, and the other two are driven wheels. A hydraulic motor is installed at the center of the driving wheel.

8. The invert block transfer device for use in tunnels according to claim 7, characterized in that: Both the drive wheel and the driven wheel are steered by the steering system, which includes a steering cylinder (8). The drive wheel and the driven wheel are rotatably mounted on a wheel frame. The wheel frame is rotatably engaged with the bottom of the vertical frame (101). One end of the piston rod of the steering cylinder (8) is hinged to the wheel frame, and one end of the cylinder body of the steering cylinder (8) is hinged to the vertical frame (101).

9. The invert block transfer device for use in tunnels according to claim 3, characterized in that: The sliding connecting strip (15) is also fixedly provided with a locking pin telescopic component (24), which includes a telescopically controllable locking pin and a driving component for controlling the extension and retraction of the locking pin. A locking pin hole that cooperates with the locking pin is opened on the sliding frame (13).

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