Upper and lower separated open-cut tunnel vault trolley with intelligent support replacement function

Abstract

The present invention belongs to the technical field of tunnel construction and discloses an upper and lower separated open-cut tunnel vault trolley with an intelligent support replacement function, comprising a lower traveling mechanism movable in the tunnel, a movable upper formwork mechanism provided on the lower traveling mechanism, and a support mechanism provided on the upper formwork mechanism; the upper formwork mechanism comprises an upper steel frame, an upper traveling assembly provided at the bottom end of the upper steel frame, and the upper traveling assembly moves on the lower traveling mechanism; the lower traveling mechanism comprises a lower steel frame, a lower traveling assembly provided at the bottom end of the lower steel frame, and the lower traveling assembly moves on a track; locking assemblies are provided on the upper and lower traveling assemblies for limiting positions. The present invention is simple to operate and easy to use, can realize independent movement of the upper and lower parts, conveniently realizes automatic support and support replacement during the open-cut tunnel excavation process, is flexible to adjust, has strong feasibility and practical value, and is highly safe.

Description

Technical Field

[0001] The present invention relates to the technical field of tunnel construction, and in particular to an upper and lower separated open-cut tunnel vault trolley with an intelligent support replacement function. Background Art

[0002] The terminal is an important part of the airport. Traditional terminals are mostly arranged adjacent to rail transit, and passengers need to walk a long distance to transfer. However, due to the deep burial depth of the underground tunnel, it is not convenient to transfer. Therefore, shallow tunnels are needed to achieve "zero transfer".

[0003] Open-cut tunnel foundation pits involve foundation pit support. Before the construction of the main structure top plate, steel replacement supports need to be installed on the side walls. Due to the influence of steel replacement supports, ordinary tunnel trolleys cannot be used normally. At the same time, traditional tunnel arch construction methods often rely on manual operation, which is not only inefficient but also poses great safety hazards. Construction workers work at heights, which not only consumes a lot of physical energy but is also easily disturbed by the external environment, thereby increasing the difficulty and risk of construction. In addition, although the traditional support system has advantages in controlling structural deformation, as the project continues to advance, its transitional characteristics make it unable to meet the requirements of long-term construction, and replacement support operations are required, further increasing the complexity and risk of construction.

[0004] Therefore, the present application designs an upper and lower separated open-cut tunnel vault trolley with an intelligent support replacement function to solve the above technical problems. Summary of the Invention

[0005] The purpose of the present invention is to provide an upper and lower separated open-cut tunnel vault trolley with an intelligent support replacement function to solve the problems existing in the prior art.

[0006] To achieve the above-mentioned object, the present invention provides the following solution: The present invention provides an upper and lower separated open-cut tunnel vault trolley with an intelligent support replacement function, comprising a lower traveling mechanism movable within the tunnel, a movable upper formwork mechanism disposed on the lower traveling mechanism, and a support mechanism for supporting the tunnel vault disposed on the upper formwork mechanism;

[0007] The upper template mechanism includes an upper steel frame, the bottom end of the upper steel frame is provided with an upper walking assembly, and the upper walking assembly is movably arranged on the lower walking mechanism;

[0008] The lower traveling mechanism comprises a lower steel frame, the bottom end of which is provided with a lower traveling assembly, and the lower traveling assembly is movably arranged on a track at the bottom end of the tunnel;

[0009] The upper traveling assembly and the lower traveling assembly are respectively provided with locking assemblies for limiting positions.

[0010] Preferably, the lower walking assembly includes a plurality of walking wheels arranged on the lower steel frame, the walking wheels are adapted to the track and limited to rolling on the track; the walking wheels are electrically connected to the control module arranged on the lower steel frame, and the locking assembly is limited to the walking wheels.

[0011] Preferably, the locking assembly includes a locking plate that slides symmetrically on the bottom end of the lower steel frame, and the locking plate is provided with locking grooves corresponding to the two sides of the mounting shaft of the walking wheel. When locking, the two locking plates slide toward the walking wheel, and the locking plates clamp the mounting shaft through the locking grooves.

[0012] Preferably, the locking assembly includes a mounting seat fixedly connected to the bottom end of the lower steel frame, and the mounting seat is arranged corresponding to the walking wheel; locking power rods are respectively installed on both sides of the mounting seat, and the output end of the locking power rod is transmission-connected to the locking plate.

[0013] Preferably, a movable groove is formed on one side of the locking plate facing the mounting seat, a sliding block is longitudinally slid in the movable groove, and the sliding block extends out of the movable groove and is fixedly connected to the output end of the locking power rod.

[0014] Preferably, a guide block is installed at the bottom end of the lower steel frame, the lower end face of the guide block is inclined, and the guide block gradually thickens toward the side of the walking wheel, and the top end of the locking plate is adapted to and slidably connected to the inclined surface of the guide block.

[0015] Preferably, two clamping strips are provided on the track and arranged along the moving direction of the running wheel, and the clamping strips are arranged corresponding to the locking plate; when the running wheel is locked, the bottom end of the locking plate is limitedly abutted against the top end of the clamping strip.

[0016] Preferably, the traveling wheel is provided with a limiting groove in an annular arrangement, and the limiting groove is arranged corresponding to the top end of the track; the side wall of the limiting groove is provided with a telescopic groove in an annular arrangement, and a telescopic block is provided in the telescopic groove for telescopic sliding, and a rolling ball is provided on the telescopic block, and the ball is in rolling contact with the side wall of the track.

[0017] Preferably, the support mechanism includes a plurality of arc-shaped inner and outer formworks, a plurality of internal support rods are provided between the inner wall of the inner formwork and the upper steel frame, and a plurality of external reinforcement rods are provided between the outer formwork and the tunnel support structure.

[0018] Preferably, the outer wall of the outer formwork is provided with a plurality of vibrating pouring openings for pouring concrete between the inner formwork and the outer formwork and for vibrating.

[0019] Compared with the prior art, the present invention has the following advantages and technical effects: the present invention discloses an open-cut tunnel vault trolley with an intelligent support-changing function, which can be separated into an upper and a lower traveling mechanism and an upper formwork mechanism, and can realize the trolley passing through the steel supports that cannot be removed at the current stage, thereby solving the walking problem of the vault trolley; by arranging a supporting mechanism on the upper formwork mechanism, the tunnel vault can be automatically supported, and the supporting force can be automatically loaded and unloaded without manual loading and unloading, which can solve the problem of difficult steel support replacement and removal in the later stage, and save the tedious process of manual support and loading and unloading; the lower steel frame is moved along the track at the bottom of the tunnel by the lower traveling assembly The trolley can be moved on the track to drive the device to move in the tunnel, and the upper steel frame of the upper formwork mechanism can move independently on the lower steel frame through the upper walking assembly, so that the lower walking mechanism and the upper formwork mechanism can move independently, and the lower walking mechanism can move forward under the support condition. It has good flexibility and adaptability and is suitable for the construction of tunnel vault structures where the support of open tunnels affects the advancement of the trolley; the upper walking assembly and the lower walking assembly are respectively provided with locking assemblies, which can realize the locking and loosening of the upper walking assembly and the lower walking assembly, thereby improving the stability of the support, improving the safety of the support state, and reducing the risk of support.

[0020] The present invention is simple to operate and easy to use, can realize independent movement of the upper and lower parts, conveniently realizes automatic support and replacement of supports in the open-cut tunnel excavation process, has flexible adjustment, has strong feasibility and practical value, and is highly safe. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of this application. The exemplary embodiments and descriptions of this application are intended to explain this application and do not constitute an improper limitation on this application. In the accompanying drawings:

[0022] Figure 1 This is the main view of the present invention;

[0023] Figure 2 This is a side structural diagram of the present invention;

[0024] Figure 3 This is a top view schematic diagram of the outer template of the present invention;

[0025] Figure 4 This is a schematic structural diagram of the locking assembly of the present invention;

[0026] Figure 5 For the present invention Figure 4 A partial enlarged view of middle A;

[0027] Figure 6 For the present invention Figure 4 A partial enlarged view of B in the middle;

[0028] Figure 7 is a side view of the locking plate of the present invention;

[0029] Figure 8 It is a side view of the traveling wheel of the present invention;

[0030] In the figure: 1. Lower walking mechanism; 2. Upper formwork mechanism; 3. Upper steel frame; 4. Upper walking assembly; 5. Lower steel frame; 6. Lower walking assembly; 7. Locking assembly; 8. Walking wheel; 9. Track; 10. Locking plate; 11. Locking slot; 12. Mounting shaft; 13. Mounting seat; 14. Locking power rod; 15. Movable slot; 16. Sliding block; 17. Guide block; 18. Clamping strip; 19. Limiting slot; 20. Telescopic slot; 21. Telescopic block; 22. Telescopic spring; 23. Ball; 24. Inner formwork; 25. Outer formwork; 26. Inner support rod; 27. External reinforcement rod; 28. Vibrating pouring mouth; 29. ​​Ladder; 30. Control module; 31. Existing support. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0033] Reference Figures 1-8 As shown, this embodiment provides an upper and lower separated open-cut tunnel vault trolley with an intelligent support replacement function, comprising a lower traveling mechanism 1 movable in the tunnel, a movable upper formwork mechanism 2 provided on the lower traveling mechanism 1, and a support mechanism for supporting the tunnel vault provided on the upper formwork mechanism 2;

[0034] The upper template mechanism 2 includes an upper steel frame 3, the bottom end of which is provided with an upper traveling assembly 4, which is movably arranged on the lower traveling mechanism 1;

[0035] The lower traveling mechanism 1 comprises a lower steel frame 5, the bottom end of which is provided with a lower traveling assembly 6, which is arranged to move on a track 9 at the bottom end of the tunnel;

[0036] The upper traveling assembly 4 and the lower traveling assembly 6 are respectively provided with locking assemblies 7 for limiting positions.

[0037] The present invention discloses an open-cut tunnel vault trolley with an intelligent support-changing function, which is separated from each other. The trolley can pass through the steel supports that cannot be removed at the current stage through the lower walking mechanism 1 and the upper formwork mechanism 2, thereby solving the walking problem of the vault trolley; by arranging a supporting mechanism on the upper formwork mechanism 2, the tunnel vault can be automatically supported, and the supporting force can be automatically loaded and unloaded without manual loading and unloading, thereby solving the problem of difficult steel support replacement and removal in the later stage, and saving the tedious process of manual support and loading and unloading; the lower steel frame 5 travels on the track 9 at the bottom end of the tunnel through the lower walking assembly 6, which can drive the device to travel in the tunnel The upper steel frame 3 of the upper formwork mechanism 2 moves independently on the lower steel frame 5 through the upper walking assembly 4, which enables the lower walking mechanism 1 and the upper formwork mechanism 2 to move independently, and realizes the advancement of the lower walking mechanism 1 under the support condition. It has good flexibility and adaptability and is suitable for the construction of tunnel vault structures where the support of open-cut tunnels affects the advancement of the trolley; the upper walking assembly 4 and the lower walking assembly 6 are respectively provided with locking assemblies 7, which can realize the locking and loosening of the upper walking assembly 4 and the lower walking assembly 6, thereby improving the stability of the support, improving the safety of the support state, and reducing the risk of the support. The present invention is simple to operate and easy to use, can realize the independent movement of the upper and lower parts, and is convenient for realizing the automatic support and replacement of the open-cut tunnel excavation process. It is flexible to adjust, has strong feasibility and practical value, and is highly safe.

[0038] In one embodiment of the present application, ladders 29 are respectively provided on the upper steel frame 3 and the lower steel frame 5 to facilitate operators to climb and walk, facilitate equipment inspection and maintenance, and improve the convenience of the device.

[0039] In one embodiment of the present application, the top height of the lower steel frame 5 is lower than the existing support 31 of the tunnel. When movement is required, the lower walking mechanism 1 can pass under the existing support 31, and then the existing support 31 can be dismantled while supporting the tunnel.

[0040] To further optimize the solution, the lower walking assembly 6 includes a number of walking wheels 8 arranged on the lower steel frame 5. The walking wheels 8 are adapted to the track 9 and are limited in rolling on the track 9; the walking wheels 8 are electrically connected to the control module 30 arranged on the lower steel frame 5, and the locking assembly 7 is limited in position with the walking wheels 8. The walking wheels 8 are adapted to the track 9, and the walking wheels 8 rotate under the drive module to ensure that the trolley can move stably along the track 9 in the tunnel, which is convenient for movement; the locking assembly 7 can realize the locking and loosening of the walking wheels 8. When supporting, the entire device needs to be stable. The locking assembly 7 is locked with the walking wheels 8, so that the walking wheels 8 are stuck and stuck with the track 9, so that the trolley can be stably stopped at the specified position to avoid movement, thereby improving the stability and safety of the tunnel support; when movement is required, the locking assembly 7 loosens the walking wheels 8 so that the device can move freely.

[0041] In one embodiment of the present application, the driving module is preferably an explosion-proof motor to ensure safety for use in tunnels, and the explosion-proof motor is controlled by the control module 30 .

[0042] In one embodiment of the present application, the structure of the upper walking component 4 also includes a walking wheel 8 driven by a driving module. The walking wheel 8 rolls on the track 9 at the top of the lower steel frame 5. The principle is the same as the walking and locking method of the lower walking component 6. Therefore, this application is explained with the lower walking component 6 as an example, and the upper walking component 4 is no longer explained.

[0043] To further optimize the solution, the locking assembly 7 includes a locking plate 10 that slides symmetrically at the bottom end of the lower steel frame 5. The locking plate 10 is provided with locking grooves 11 corresponding to the two sides of the mounting shaft 12 of the walking wheel 8. When locking, the two locking plates 10 slide toward the walking wheel 8, and the locking plates 10 clamp the mounting shaft 12 through the locking grooves 11. The two ends of the mounting shaft 12 of the traveling wheel 8 are prismatic, and gradually taper to a cone-like structure toward the side away from the traveling wheel 8. A locking groove 11 is provided on the locking plate 10. When traveling normally, the locking plate 10 is separated from the traveling wheel 8, and the small end of the mounting shaft 12 corresponds to the locking groove 11 but does not contact each other, so as to avoid the mounting shaft 12 being stuck and affecting the rotation of the traveling wheel 8; and when locking is required, the locking plate 10 moves toward the traveling wheel 8. At this time, the end of the prismatic mounting shaft 12 is gradually inserted into the locking groove 11, and the outer diameter corresponding to the outer edge of the locking groove 11 gradually increases. After reaching the limit position, the mounting shaft 12 is stuck by the locking groove 11, thereby locking the traveling wheel 8 and ensuring the stability of the trolley during operation.

[0044] To further optimize the solution, the locking assembly 7 includes a mounting base 13 fixed to the bottom end of the lower steel frame 5. The mounting base 13 is arranged corresponding to the running wheel 8. Locking power rods 14 are respectively installed on both sides of the mounting base 13, and the output end of the locking power rod 14 is transmission-connected to the locking plate 10. The mounting base 13 is installed on the lower steel frame 5 just above the running wheel 8. The locking power rods 14 are respectively installed on both sides of the mounting base 13. The locking power rods 14 are transmission-connected to the locking plate 10. The control module 30 controls the extension and retraction of the locking power rods 14, and then controls the movement of the locking plate 10 as needed. When the running wheel 8 is moving, the locking power rod 14 extends, driving the locking plate 10 away from the running wheel 8 without affecting the movement of the running wheel 8. When locking is required, the locking power rod 14 shortens, driving the locking plate 10 to move toward the running wheel 8, thereby locking the running wheel 8.

[0045] A further optimization scheme is provided. The locking plate 10 is provided with a movable groove 15 on the side facing the mounting seat 13. A sliding block 16 slides longitudinally within the movable groove 15. The sliding block 16 extends out of the movable groove 15 and is fixedly connected to the output end of the locking power rod 14. A guide block 17 is installed at the bottom end of the lower steel frame 5. The lower end surface of the guide block 17 is inclined, and the guide block 17 gradually thickens toward the side of the running wheel 8. The top end of the locking plate 10 is adapted to the inclined surface of the guide block 17 and is slidably connected. The lower end surface of the guide block 17 is designed as an inclined surface, and its thickness increases as it moves toward the running wheel 8. When the locking plate 10 moves under the drive of the locking power rod 14, it is pushed up and down longitudinally by the inclined surface of the guide block 17. At this time, the sliding block 16 slides longitudinally within the movable groove 15, so that the horizontal and longitudinal movements of the locking plate 10 do not interfere with each other, facilitating the movement and locking control of the running wheel 8.

[0046] In one embodiment of the present application, a guide groove is provided on the inclined surface of the guide block 17 and arranged along the inclined surface. A guide sliding block adapted to the guide groove is provided at the top of the locking plate 10. The guide sliding block is slidably connected in the guide groove, thereby improving the movement stability between the locking plate 10 and the guide block 17.

[0047] As a further optimization, two clamping strips 18 are provided on the track 9, arranged along the direction of movement of the running wheel 8. The clamping strips 18 are provided corresponding to the locking plate 10. When the running wheel 8 is locked, the bottom end of the locking plate 10 is limitedly abutted against the top end of the clamping strip 18. The track 9 is set as an I-shaped structure. The running wheel 8 moves on the top crossbeam of the track 9, while the clamping strip 18 is fixed to the crossbeam at the bottom end of the track 9. Its position corresponds to when the locking plate 10 locks the running wheel 8. When locked, the bottom end of the locking plate 10 abuts against the clamping strip 18, further locking the position between the running wheel 8 and the track 9, improving the locking stability and preventing displacement caused by external factors.

[0048] In one embodiment of the present application, a tooth shape is provided between the top end of the clamping strip 18 and the bottom end of the locking plate 10 to increase friction, thereby effectively preventing sliding between the clamping strip 18 and the locking plate 10 during locking.

[0049] A further optimization scheme is provided on the walking wheel 8 with a limiting groove 19 in an annular arrangement, and the limiting groove 19 is arranged corresponding to the top of the track 9; the side wall of the limiting groove 19 is provided with a telescopic groove 20 in an annular arrangement, and a telescopic block 21 is telescopically slidable in the telescopic groove 20, and a rollable ball 23 is provided on the telescopic block 21, and the ball 23 is in rolling contact with the side wall of the track 9. The limiting groove 19 outside the walking wheel 8 is adapted to the crossbeam at the top of the track 9, and the top of the track 9 extends into the limiting groove 19 to realize the positioning between the walking wheel 8 and the track 9 and prevent the walking wheel 8 and the track 9 from being misaligned; the telescopic groove 20 is opened on the side wall of the limiting groove 19, and the telescopic block 21 is driven by the telescopic spring 22 inside to elastically slide in the telescopic groove 20, and the telescopic block 21 is provided with a ball 23 that can roll in multiple directions. The ball 23 abuts against the side wall of the crossbeam at the top of the track 9. When the walking wheel 8 moves on the track, the ball 23 moves on the track, which can avoid direct contact between the crossbeam at the top of the track 9 and the side wall of the limiting groove 19, thereby reducing the power loss caused by friction, and at the same time avoiding the heat caused by friction, reducing safety hazards.

[0050] To further optimize the solution, the supporting mechanism includes several arc-shaped inner formworks 24 and outer formworks 25, several internal support rods 26 are arranged between the inner wall of the inner formwork 24 and the upper steel frame 3, and several external reinforcement rods 27 are arranged between the outer formwork 25 and the tunnel support structure; the outer wall of the outer formwork 25 is provided with several vibration pouring ports 28, which are used to pour concrete between the inner formwork 24 and the outer formwork 25 and to vibrate. The inner formwork 24 is supported and unfolded by a number of internal support rods 26, while the outer formwork 25 is reinforced by external reinforcement rods 27, making the support of the tunnel arch more stable and reliable, and also facilitating the pouring and vibration of concrete; after reaching the specified position, the internal support rods 26 are extended to support the inner formwork 24, and then concrete is injected between the inner formwork 24 and the outer formwork 25 through the vibration pouring port 28, and the vibrator is inserted through the vibration pouring port 28 to vibrate the concrete, thereby improving the quality and efficiency of concrete pouring and facilitating the operation of the construction workers; after the support here is completed, the internal support rods 26 are shortened to retract the inner formwork 24, which can facilitate the movement of the upper formwork mechanism 2.

[0051] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0052] The embodiments described above are merely descriptions of preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Without departing from the spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by persons skilled in the art should fall within the scope of protection defined by the claims of the present invention.

Claims

1. A top-down, split open-cut tunnel vault trolley with intelligent support replacement function, characterized by: It comprises a lower traveling mechanism (1) movable in a tunnel, a movable upper template mechanism (2) being provided on the lower traveling mechanism (1), and a supporting mechanism for supporting a tunnel vault being provided on the upper template mechanism (2); The upper template mechanism (2) comprises an upper steel frame (3), an upper walking assembly (4) is provided at the bottom end of the upper steel frame (3), and the upper walking assembly (4) is movably provided on the lower walking mechanism (1); The lower traveling mechanism (1) comprises a lower steel frame (5), a lower traveling assembly (6) is provided at the bottom end of the lower steel frame (5), and the lower traveling assembly (6) is movably arranged on a track (9) at the bottom end of the tunnel; The upper traveling assembly (4) and the lower traveling assembly (6) are respectively provided with locking assemblies (7) for limiting positions; The lower walking assembly (6) includes a plurality of walking wheels (8) arranged on the lower steel frame (5), the walking wheels (8) are adapted to the track (9) and limitedly roll on the track (9); the walking wheels (8) are electrically connected to a control module (30) arranged on the lower steel frame (5), and the locking assembly (7) is limitedly arranged with the walking wheels (8); The locking assembly (7) includes a locking plate (10) that slides symmetrically on the bottom end of the lower steel frame (5), and the locking plate (10) is provided with locking grooves (11) corresponding to the two sides of the installation shaft (12) of the walking wheel (8). When locking, the two locking plates (10) slide toward the walking wheel (8), and the locking plates (10) clamp the installation shaft (12) through the locking grooves (11); The locking assembly (7) includes a mounting seat (13) fixed to the bottom end of the lower steel frame (5), and the mounting seat (13) is arranged corresponding to the walking wheel (8); locking power rods (14) are respectively installed on both sides of the mounting seat (13), and the output end of the locking power rod (14) is transmission-connected to the locking plate (10); The locking plate (10) is provided with a movable groove (15) on one side facing the mounting seat (13), a sliding block (16) is longitudinally slidable in the movable groove (15), and the sliding block (16) extends out of the movable groove (15) and is fixedly connected to the output end of the locking power rod (14); A guide block (17) is installed at the bottom end of the lower steel frame (5), the lower end surface of the guide block (17) is inclined, and the guide block (17) gradually thickens toward the side of the walking wheel (8), and the top end of the locking plate (10) is adapted to and slidably connected to the inclined surface of the guide block (17); Two clamping strips (18) are provided on the track (9) and are arranged along the moving direction of the running wheel (8). The clamping strips (18) are arranged corresponding to the locking plate (10); when the running wheel (8) is locked, the bottom end of the locking plate (10) is limitedly abutted against the top end of the clamping strip (18); The travel wheel (8) is provided with a limiting groove (19) arranged in an annular shape, and the limiting groove (19) is arranged corresponding to the top end of the track (9); the side wall of the limiting groove (19) is provided with a telescopic groove (20) arranged in an annular shape, and a telescopic block (21) is telescopically slidable in the telescopic groove (20), and a rolling ball (23) is provided on the telescopic block (21), and the ball (23) is in rolling contact with the side wall of the track (9); A guide slide groove is provided on the inclined surface of the guide block (17) and arranged along the inclined surface. A guide slider adapted to the guide slide groove is provided on the top of the locking plate (10). The guide slider is slidably connected in the guide slide groove, thereby improving the movement stability between the locking plate (10) and the guide block (17). A toothed shape for increasing friction is provided between the top end of the clamping strip (18) and the bottom end of the locking plate (10), thereby effectively preventing sliding between the clamping strip (18) and the locking plate (10) during locking; Both ends of the mounting shaft (12) of the travel wheel (8) are prismatic, and gradually taper toward the side away from the travel wheel (8) to form a conical structure.

2. The upper and lower separated open-cut tunnel vault trolley with intelligent support replacement function according to claim 1 is characterized in that: The support mechanism comprises a plurality of arc-shaped inner templates (24) and outer templates (25), a plurality of internal support rods (26) are arranged between the inner wall of the inner template (24) and the upper steel frame (3), and a plurality of external reinforcement rods (27) are arranged between the outer template (25) and the tunnel support structure.

3. The upper and lower separated open-cut tunnel vault trolley with intelligent support replacement function according to claim 2 is characterized in that: The outer wall of the outer template (25) is provided with a plurality of vibrating pouring openings (28) for pouring concrete between the inner template (24) and the outer template (25) and vibrating the concrete.

Images