Tunnel lagging jack mounting equipment

Abstract

The invention relates to the technical field of tunnel construction, in particular to tunnel arch frame installation equipment which comprises a track plate and further comprises a movable frame, a conveying part matched with the track plate is installed at the bottom of the movable frame, two lead screws are rotatably installed in the movable frame, and the outer sides of the two lead screws are sleeved with lifting parts in a threaded mode; the driving mechanism is mounted on the moving frame; a locking piece is installed on the butt-joint plate, a through hole is formed in the butt-joint plate, a butt-joint mechanism is installed on the lifting part, and the butt-joint mechanism is in butt joint with the through hole in the butt-joint plate. The designed lifting part can assist in lifting of the arch part, and then by means of the designed butt-joint mechanism, butt joint between the arch part and the two arch feet can be assisted; the operation of lifting the arch part and adjusting the position of the arch part to align the arch part with the arch springing by a worker is simulated, so that a constructor does not need to climb to jack the arch part, the operation is safer, meanwhile, the two ends of the arch part can be quickly and accurately aligned with the arch springing, and bolt insertion is facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of tunnel construction, in particular to tunnel arch installation equipment. Background Art

[0002] The tunnel arch is an important component of the tunnel's initial support structure. It is a frame structure used to support the tunnel's surrounding rock and prevent it from excessive deformation and collapse.

[0003] At present, most arch frames are prepared with I-shaped rods. When the arch frame is installed, two arch feet and the arch part are pre-jointed in the plane, so that the error between the arch part and the arch feet meets the conditions. Then the two arch feet are installed at the bottom of the tunnel first, and finally the arch part is installed. In some tunnels with limited space, due to the large amount of gravel inside the tunnel, large equipment cannot enter or there is not enough operating space. As a result, when the arch is installed, personnel need to stand on the shelf to support the arch part, and then adjust the position of the arch part by manpower so that the arch part is aligned with the slots on the two arch foot docking plates, and then dock with bolts. The manual installation in the above method requires a lot of physical strength of the construction workers, and there are certain safety hazards for people to climb up to lift the arch part. Summary of the invention

[0004] The object of the present invention is to provide a tunnel arch installation device to solve the problem in the above background technology that some tunnels with limited space require personnel to lift the arch, which causes certain safety hazards in the arch installation.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a tunnel arch frame installation device, comprising a track plate, which is laid flat in the tunnel, and also comprising a moving frame, a conveying part adapted to the track plate is installed at the bottom of the moving frame, two screw rods are rotatably installed in the moving frame, and a lifting part is threadedly sleeved on the outer sides of the two screw rods, and the arch part is driven to move upward by the lifting part; and a driving mechanism installed on the moving frame, which drives the two screw rods to rotate synchronously; and a docking plate, which is docked with the arch foot, and a locking piece plugged into the slot at the end of the arch foot is installed on the docking plate, a through hole is opened on the docking plate, a docking mechanism is installed on the lifting part, and the docking mechanism is docked with the through hole on the docking plate.

[0006] Preferably, the lifting part includes a lifting seat connected to the screw thread, a lifting plate is fixed between the two lifting seats, and arc seats are fixed at both ends of the lifting plate, the arc seats are fitted with the arch part, and a lifting unit for lifting the arch part is installed on the lifting plate.

[0007] Preferably, a side plate is fixed on the arc seat, and the distance between the two side plates is greater than the width of the arch portion, and a chamfer is provided at the joint between the side plate and the arc seat for the arch portion to fit with the outer wall of the arc seat.

[0008] Preferably, the lifting unit includes a lifting disk, the top of the lifting disk is a spherical structure, a threaded rod is fixed to the bottom of the lifting disk, and the threaded rod is slidably plugged into the lifting plate, an adjusting cylinder threadedly sleeved with the threaded rod is rotatably installed at the bottom of the lifting plate, a gear ring is fixed to the outside of the adjusting cylinder, a lifting motor is fixed to the bottom of the lifting plate, and a lifting gear meshing with the gear ring is fixed to the output end of the lifting motor, a limiting opening is provided on the outside of the threaded rod, and a limiting block slidably docked with the limiting opening is fixed on the lifting plate.

[0009] Preferably, the docking mechanism includes two turntables rotatably installed at the bottom of the lifting plate, and two docking motors are fixed to the bottom of the lifting plate through a motor frame, and the output ends of the two docking motors are fixed to the rotating shaft of the turntable, and a docking rope is fixedly wrapped inside the turntable, and the outer end of the docking rope slides through the through hole and is fixed with a threaded end, and the outer side of the threaded end is threaded with an abutting cap.

[0010] Preferably, the locking member includes a threaded barrel fixed on the docking plate, a rubber tube is fixed to the outer end of the threaded barrel, and an adjusting rod is inserted into the inner thread of the threaded barrel, a rotating cap is fixed to one end of the adjusting rod, and an adjusting ball that abuts against the rubber tube is fixed to the other end, and an adjusting ring that matches the adjusting ball is fixed to the inner wall of the rubber tube.

[0011] Preferably, a fitting plate that fits with the outer side of the arch foot is fixed on the butt joint plate.

[0012] Preferably, the driving mechanism includes a driving motor fixed to the top of the moving frame through a motor frame, two driving wheels are rotatably installed on the top of the moving frame, and the output end of the driving motor is fixed to one of the driving wheels through a coupling, a synchronous belt is meshed between the two driving wheels, a transmission wheel meshed with the driving wheel is fixed to the top of the screw rod, and two sliding rods are fixed at both ends of the moving frame, and the two sliding rods are respectively slidably docked with two lifting seats.

[0013] Preferably, the conveying part includes a plurality of conveying wheels rotatably docked with the bottom of the mobile frame, the conveying wheels move along the track plate, a conveying motor is fixed to the mobile frame through a motor frame, and conveying gears are fixed to the output end of the conveying motor and a plurality of conveying wheels, a plurality of conveying gears are meshed with a synchronous belt 2 on the outer sides of the meshing sleeves, and a tightening column in contact with the synchronous belt 2 is fixed to the bottom of the mobile frame.

[0014] Preferably, a counterweight frame is fixed on the movable frame.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention can lift the arch part through the designed lifting part, and then assist the arch part with the two arch feet with the help of the designed docking mechanism, simulating the operation of lifting the arch part and adjusting the position of the arch part to align with the arch feet, so that the construction workers do not need to climb up to lift the arch part, and the installation operation of the entire arch frame is safer. At the same time, the two ends of the arch part can be quickly and accurately aligned with the arch feet, which is convenient for bolt insertion; 2. The design of the conveying part and the track plate of the present invention enables the mobile frame to move in the tunnel, making it convenient to adjust the arch part forward and backward. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure when the arch part is installed in the present invention; Figure 2 It is a schematic diagram of the structure at another angle when the arch portion is installed in the present invention; Figure 3 This is the front view of the invention when the arch is installed; Figure 4 It is a schematic diagram of the overall structure of the present invention; Figure 5 It is a schematic diagram of the structure of the mobile frame of the present invention after partial cross-section; Figure 6 It is a schematic diagram of the local structure of the conveying part of the present invention; Figure 7 It is a schematic diagram of the lifting part structure of the present invention; Figure 8 This is a schematic diagram of the bottom structure of the lifting plate of the present invention; Fig. 9 It is a structural schematic diagram of the butt joint plate and the arch foot of the present invention after being butt jointed; Fig.10 It is a schematic diagram of a partial cross-sectional structure of a butt joint plate of the present invention.

[0017] In the figure: 1, track plate; 2, moving frame; 3, conveying part; 4, screw rod; 5, lifting part; 6, driving mechanism; 7, docking plate; 8, locking member; 9, through hole; 10, docking mechanism; 11, lifting seat; 12, lifting plate; 13, arc seat; 14, lifting unit; 15, side plate; 16, lifting plate; 17, threaded rod; 18, adjusting cylinder; 19, gear ring; 20, lifting motor; 21, lifting gear; 22, limit opening; 23, limit block; 2 4. Turntable; 25. Docking motor; 26. Docking rope; 27. Threaded end; 28. Abutment cap; 29. ​​Threaded barrel; 30. Rubber tube; 31. Adjustment rod; 32. Adjustment ball; 33. Adjustment ring; 34. Lamination plate; 35. Driving motor; 36. Driving wheel; 37. Synchronous belt one; 38. Transmission wheel; 39. Sliding rod; 40. Conveying wheel; 41. Conveying motor; 42. Conveying gear; 43. Synchronous belt two; 44. Belt tightening column; 45. Counterweight frame. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] Example 1: Please refer to Figure 1 - Figure 5 as well as Fig.10 , a tunnel arch installation device shown in the figure includes a track plate 1, which is laid flat in the tunnel, and a moving frame 2, a conveying part 3 adapted to the track plate 1 is installed at the bottom of the moving frame 2, two screw rods 4 are rotatably installed in the moving frame 2, and a lifting part 5 is threadedly sleeved on the outer side of the two screw rods 4, and the arch part is driven to move upward by the lifting part 5; and a driving mechanism 6 installed on the moving frame 2, which drives the two screw rods 4 to rotate synchronously through the driving mechanism 6; and a docking plate 7, which is docked with the arch foot, and a locking piece 8 plugged into the slot at the end of the arch foot is installed on the docking plate 7, and a through hole 9 is opened on the docking plate 7, and a docking mechanism 10 is installed on the lifting part 5, and the docking mechanism 10 is docked with the through hole 9 on the docking plate 7; In this solution, the designed conveying part 3 drives the moving frame 2 to move forward and backward along the track plate 1 in the tunnel, and after driving the arch to move near the two arch feet, the lifting part 5 is used to drive the arch to move upward. After moving to the specified position, the docking mechanism 10 is operated to align the two ends of the arch with the arch feet, simulating a person lifting the arch to adjust the position so that the arch is aligned with the arch feet, so that when lifting and aligning the arch, it is faster and more accurate, and there is no need for personnel to climb up to lift the arch, which reduces risks and improves the safety of personnel during operation; It should be noted that: the track plate 1 in this solution is laid in the tunnel, and only the area to be laid in the tunnel needs to be leveled, and there is no need to process all areas. At the same time, the track plate 1 can be spliced ​​to meet the long-distance movement of the mobile frame 2 in the tunnel, which is convenient for the jacking and installation of multiple arches.

[0020] It should also be noted that a counterweight frame 45 is provided on the mobile frame 2. When lifting the arch, in order to avoid the overall center of gravity being too high, causing the arch to tilt and affect the installation, personnel can place counterweight blocks on the counterweight frame 45.

[0021] For further information, see Figure 4 , Figure 5 , Figure 7 and Figure 8 The lifting part 5 includes a lifting seat 11 threadedly connected to the screw rod 4, a lifting plate 12 is fixed between the two lifting seats 11, arc seats 13 are fixed at both ends of the lifting plate 12, the arc seats 13 are in contact with the arch, and a lifting unit 14 for lifting the arch is installed on the lifting plate 12; A side plate 15 is fixed on the arc seat 13 , the distance between the two side plates 15 is greater than the width of the arch, and a chamfer is provided at the joint between the side plate 15 and the arc seat 13 for the arch to fit with the outer wall of the arc seat 13 .

[0022] Also, see Figure 3 and Figure 5 The driving mechanism 6 includes a driving motor 35 fixed to the top of the mobile frame 2 through a motor frame. Two driving wheels 36 are rotatably installed on the top of the mobile frame 2. The output end of the driving motor 35 is fixed to one of the driving wheels 36 through a coupling. A synchronous belt 37 is meshed between the two driving wheels 36. A transmission wheel 38 meshing with the driving wheel 36 is fixed to the top of the screw rod 4. Two sliding rods 39 are fixed at both ends of the mobile frame 2. The two sliding rods 39 are slidably docked with the two lifting seats 11 respectively.

[0023] The principle of the lifting part 5 driving the arch part to move upward: first, the personnel places the arch part on the two arc-shaped seats 13, and then provides power through the driving motor 35 to rotate the driving wheel 36, and cooperates with the synchronous belt 37 to make the two driving wheels 36 rotate synchronously, so that the transmission wheel 38 meshing with them rotates synchronously, and the two screw rods 4 rotate synchronously, thereby driving the lifting seat 11 and the lifting plate 12 to move upward synchronously, and moving the arch part placed on the arc-shaped seat 13 upward.

[0024] It should be noted that, in order to facilitate accurate placement of the arch, side plates 15 are fixed on both sides of the arc seat 13, and the chamfers in the side plates 15 can help the arch to be stably located at the center of the arc seat 13 during the lifting process.

[0025] For further information, see Figure 7 and Figure 8 The lifting unit 14 includes a lifting disk 16, the top of the lifting disk 16 is a spherical structure, a threaded rod 17 is fixed to the bottom of the lifting disk 16, the threaded rod 17 is slidably plugged with the lifting plate 12, an adjusting cylinder 18 threadedly sleeved with the threaded rod 17 is rotatably installed at the bottom of the lifting plate 12, a gear ring 19 is fixed to the outside of the adjusting cylinder 18, a lifting motor 20 is fixed to the bottom of the lifting plate 12, a lifting gear 21 meshing with the gear ring 19 is fixed to the output end of the lifting motor 20, a limiting opening 22 is provided on the outside of the threaded rod 17, and a limiting block 23 slidably docked with the limiting opening 22 is fixed on the lifting plate 12; Among them, see Figure 8 - Fig.10 The docking mechanism 10 includes two turntables 24 rotatably mounted at the bottom of the lifting plate 12. Two docking motors 25 are fixed to the bottom of the lifting plate 12 through a motor frame. The output ends of the two docking motors 25 are fixed to the rotating shafts of the turntables 24. A docking rope 26 is fixedly wound inside the turntable 24. The outer end of the docking rope 26 slides through the through hole 9 and is fixed with a threaded end 27. The outer side of the threaded end 27 is threadedly inserted with a counter cap 28.

[0026] The principle of using the docking mechanism 10 to achieve alignment between the arch and the arch foot is as follows: first, the personnel first passes the threaded end 27 of the outer end of the docking rope 26 through the through hole 9, and then passes it through the control at one end of the arch, and then screws on the abutting cap 28, and then the personnel fits the docking plate 7 with one end of the arch foot, and uses the locking piece 8 to achieve docking and fixing with the slot hole of the arch foot, and then moves the arch so that the arch moves between the two arch feet, and finally drives the jacking motor 20 to rotate the jacking gear 21, driving the gear ring 19 and the adjusting cylinder 18 to rotate, so that the threaded rod 17 and the jacking disk 16 move up, so that the arch moves up, and then the docking motor 25 drives the turntable 24 to rotate, so that the docking rope 26 is wound and tightened, so that the abutting cap 28 is pulled, gradually close to the docking plate 7, and finally the arch and the arch foot fit together, completing the alignment, and the personnel can easily insert the bolts; It should be noted that when the arch is lifted up by the lifting plate 16, the top of the lifting plate 16 is a spherical structure, and when the docking mechanism 10 adjusts the angle of the arch, the arch is easier to turn, which can replace the operation of regularly moving the arch by personnel; It should also be noted that when the arch is lifted up by the lifting plate 16, the arch is separated from the outer side of the arc seat 13. At the same time, the arch is located between the two side panels 15. The two side panels 15 can prevent the arch from falling. The distance between the two side panels 15 is greater than the width of the arch, which satisfies the angle adjustment of the arch within a certain range and facilitates the alignment of the arch with the arch foot.

[0027] In this scheme, the process of butt-jointing and installing the arch part and the arch foot in the arch frame includes the following steps: In the first step, personnel first lay the track plate 1 in the tunnel so that the mobile frame 2 can move along the track plate 1; In the second step, two arch feet are installed in the tunnel; The third step is to place the arch on the arc seat 13, and provide power through the driving mechanism 6, so that the lifting seat 11 drives the arch to move upward, and cooperate with the movement of the moving frame 2 along the track plate 1 to send the arch to between the two arch feet; In the fourth step, the personnel install the docking plate 7 on the arch foot, and pass the docking rope 26 through the through hole 9 and the slot on the arch in sequence, and use the abutting cap 28 to achieve abutment with the arch; Step 5: The arch portion is driven to continue to move upward by the lifting unit 14 and is out of contact with the arc seat 13; Step 6: The docking motor 25 in the docking mechanism 10 rotates to pull the docking rope 26, so that the arch portion and the arch foot are gradually aligned; Step 7: Use bolts to connect the arch part with the slots on the arch foot, then remove the docking plate 7 and the docking rope 26, and install the bolts; In the eighth step, the moving frame 2 moves backward, the lifting seat 11 moves downward, and the next round of docking between the arch part and the arch foot begins.

[0028] In this solution, the arch is moved upward and transported to the arch foot through the lifting part 5 and the conveying part 3. The simulated personnel lifts up the arch, and then with the help of the docking mechanism 10, the arch and the arch foot are gradually aligned. After the simulated personnel lifts up the arch, the arch is manually adjusted, so that the construction personnel do not need to climb up to lift up the arch, which makes the operation safer. At the same time, the two ends of the arch can be quickly and accurately aligned with the arch foot, which is convenient for the insertion of bolts.

[0029] Example 2: Please refer to Fig. 9 and Fig.10 This embodiment further explains the first embodiment, and the difference is that a specific implementation of the locking member 8 is disclosed.

[0030] Specifically, the locking member 8 includes a threaded barrel 29 fixed on the docking plate 7, a rubber tube 30 is fixed to the outer end of the threaded barrel 29, an adjusting rod 31 is inserted into the inner thread of the threaded barrel 29, a rotating cap is fixed to one end of the adjusting rod 31, and an adjusting ball 32 abutting against the rubber tube 30 is fixed to the other end, and an adjusting ring 33 adapted to the adjusting ball 32 is fixed to the inner wall of the rubber tube 30; In this solution, when installing the docking plate 7, the personnel first insert the unextended rubber tube 30 into the slot of the arch foot, and then turn the adjusting rod 31. When the adjusting rod 31 moves, it will squeeze the air pressure in the threaded tube 29, causing the rubber tube 30 to expand. At the same time, the adjusting ball 32 will move with the adjusting rod 31, squeezing the adjusting ring 33, so that the rubber tube 30 is against the inner wall of the slot, ensuring the installation stability of the docking plate 7. At the same time, a chamfer is provided on the outer side of the through hole 9 of the docking plate 7. After the subsequent docking rope 26 passes through, the docking rope 26 is pulled, and the docking rope 26 can move more smoothly.

[0031] It should be noted that in order to increase the fitting range between the docking plate 7 and the arch foot and ensure stable docking between the docking plate 7 and the arch foot, a fitting plate 34 that fits with the outer side of the arch foot is fixed on the docking plate 7.

[0032] Example 3: Please refer to Figure 3 and Figure 6 This embodiment further describes other embodiments, and the difference lies in that a specific implementation of the conveying part 3 is disclosed.

[0033] Specifically, the conveying part 3 includes a plurality of conveying wheels 40 that are rotatably docked with the bottom of the mobile frame 2. The conveying wheels 40 move along the track plate 1. A conveying motor 41 is fixed to the mobile frame 2 through a motor frame. Conveying gears 42 are fixed to the output end of the conveying motor 41 and the plurality of conveying wheels 40. A synchronous belt 2 43 is meshed on the outer sides of the plurality of conveying gears 42. A tightening column 44 that fits with the synchronous belt 2 43 is fixed to the bottom of the mobile frame 2. The tightening column 44 can stably mesh the synchronous belt 2 43 with the conveying gear 42 to avoid slipping. In this solution, the conveying motor 41 rotates to drive one of the conveying gears 42 to rotate, and under the action of the synchronous belt 2 43, a plurality of conveying wheels 40 rotate synchronously, thereby driving the moving frame 2 to move along the track plate 1.

[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tunnel arch installation device, comprising: A track slab (1), wherein the track slab (1) is laid flat in the tunnel; It is characterized by further comprising: A moving frame (2), wherein a conveying portion (3) adapted to the track plate (1) is installed at the bottom of the moving frame (2), two screw rods (4) are rotatably installed inside the moving frame (2), and a lifting portion (5) is threadedly sleeved on the outer sides of the two screw rods (4), and the arch portion is driven to move upward by the lifting portion (5); and A driving mechanism (6) mounted on the mobile frame (2), wherein the driving mechanism (6) drives the two screw rods (4) to rotate synchronously; and A docking plate (7), the docking plate (7) docking with the arch foot, and a locking member (8) plugging into a slotted hole at an end of the arch foot is installed on the docking plate (7), a through hole (9) is opened on the docking plate (7), and a docking mechanism (10) is installed on the lifting part (5), and the docking mechanism (10) docks with the through hole (9) on the docking plate (7).

2. The tunnel arch installation device according to claim 1, characterized in that: The lifting portion (5) comprises a lifting seat (11) threadedly connected to the screw rod (4), a lifting plate (12) is fixed between the two lifting seats (11), and arc seats (13) are fixed at both ends of the lifting plate (12), the arc seats (13) are in contact with the arch portion, and a lifting unit (14) for lifting the arch portion is installed on the lifting plate (12).

3. The tunnel arch installation device according to claim 2, characterized in that: A side plate (15) is fixed on the arc seat (13), and the distance between the two side plates (15) is greater than the width of the arch portion. A chamfer is provided at the joint between the side plate (15) and the arc seat (13) for the arch portion to fit with the outer wall of the arc seat (13).

4. The tunnel arch installation device according to claim 2, characterized in that: The lifting unit (14) comprises a lifting disk (16), the top of which is a spherical structure, a threaded rod (17) fixed to the bottom of the lifting disk (16), and the threaded rod (17) is slidably plugged with the lifting plate (12), an adjusting cylinder (18) threadedly sleeved with the threaded rod (17) is rotatably mounted on the bottom of the lifting plate (12), a gear ring (19) is fixed to the outer side of the adjusting cylinder (18), a lifting motor (20) is fixed to the bottom of the lifting plate (12), and a lifting gear (21) meshing with the gear ring (19) is fixed to the output end of the lifting motor (20), a limiting opening (22) is provided on the outer side of the threaded rod (17), and a limiting block (23) slidably docked with the limiting opening (22) is fixed to the lifting plate (12).

5. The tunnel arch installation device according to claim 4, characterized in that: The docking mechanism (10) comprises two turntables (24) rotatably mounted on the bottom of the lifting plate (12); two docking motors (25) are fixed to the bottom of the lifting plate (12) via a motor frame, and the output ends of the two docking motors (25) are fixed to the rotating shafts of the turntables (24); a docking rope (26) is fixedly wound inside the turntable (24); the outer end of the docking rope (26) slides through the through hole (9) and is fixed with a threaded end (27); and an abutting cap (28) is threadedly inserted on the outer side of the threaded end (27).

6. The tunnel arch installation device according to claim 5, characterized in that: The locking member (8) comprises a threaded barrel (29) fixed to the docking plate (7), a rubber tube (30) being fixed to the outer end of the threaded barrel (29), and an adjusting rod (31) being inserted into the inner thread of the threaded barrel (29), a rotating cap being fixed to one end of the adjusting rod (31), and an adjusting ball (32) being fixed to the other end thereof and abutting against the rubber tube (30), and an adjusting ring (33) being matched with the adjusting ball (32) being fixed to the inner wall of the rubber tube (30).

7. The tunnel arch installation device according to claim 1, characterized in that: A fitting plate (34) fitted to the outer side of the arch foot is fixed on the butt joint plate (7).

8. The tunnel arch installation device according to claim 2, characterized in that: The driving mechanism (6) comprises a driving motor (35) fixed to the top of the moving frame (2) through a motor frame, two driving wheels (36) are rotatably mounted on the top of the moving frame (2), and an output end of the driving motor (35) is fixed to one of the driving wheels (36) through a coupling, a synchronous belt (37) is meshed between the two driving wheels (36), a transmission wheel (38) meshed with the driving wheel (36) is fixed to the top of the screw rod (4), and two sliding rods (39) are fixed at both ends of the moving frame (2), and the two sliding rods (39) are respectively slidably docked with the two lifting seats (11).

9. The tunnel arch installation device according to claim 1, characterized in that: The conveying part (3) comprises a plurality of conveying wheels (40) rotatably connected to the bottom of the moving frame (2), the conveying wheels (40) move along the track plate (1), a conveying motor (41) is fixed to the moving frame (2) via a motor frame, and conveying gears (42) are fixed to the output end of the conveying motor (41) and the plurality of conveying wheels (40), a synchronous belt (43) is meshed on the outer sides of the plurality of conveying gears (42), and a tightening column (44) in contact with the synchronous belt (43) is fixed to the bottom of the moving frame (2).

10. The tunnel arch installation device according to claim 1, characterized in that: A counterweight frame (45) is fixed on the movable frame (2).

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