Tunnel multi-truss arch frame pre-assembling device

Abstract

The invention relates to the technical field of arch frame assembling, and particularly discloses a tunnel multi-truss arch frame pre-assembling device which comprises a bottom plate, a supporting plate horizontally arranged on the bottom plate, a rotating shaft horizontally arranged in the middle of the supporting plate, a first driving device used for driving the rotating shaft to rotate, a storage table horizontally arranged at one end of the supporting plate and baffles arranged on the two sides of the supporting plate. The connecting hole is formed in the baffle, and the pushing devices are arranged on the two sides of the supporting plate respectively. The supporting plate is used for supporting arc-shaped lagging jacks, the two ends of the lagging jacks are detachably connected with the connecting holes in the baffles respectively, the lagging jacks are arranged on the two sides of the supporting plate, and the multiple lagging jacks are distributed in the length direction of the supporting plate; the pushing device is used for pushing the arch frame to the storage table. According to the tunnel multi-truss arch frame pre-assembling device, the assembling operation of the multi-truss arch frame can be efficiently and precisely carried out.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of arch assembly, in particular to a tunnel multi-arch pre-assembly device. BACKGROUND

[0002] In tunnel construction, in order to ensure structural stability, a whole arch composed of multiple single-arches needs to be installed on the inner wall of the tunnel. Currently, in order to improve construction efficiency, the process of pre-assembling multiple single-arches into multi-arches outside the tunnel and then transferring them to the tunnel for connection with pre-embedded parts is generally adopted. Through this process, the installation efficiency of arches in the tunnel can be effectively improved.

[0003] However, the long size and large weight characteristics of the arch's arc structure pose significant challenges to the assembly outside the tunnel. The traditional process relies on crane hoisting and positioning, which not only requires multiple people to work together, but also often causes problems such as loose connection plates due to the difficulty in achieving millimeter-level precision control, affecting the subsequent installation efficiency inside the tunnel. According to the requirements of the "Highway Tunnel Construction Technical Specification", the installation of arches must ensure accurate positioning and firm connection, which is difficult to achieve through crane operation, especially when dealing with three-dimensional positioning of arc structures, which is prone to cumulative errors. Moreover, this also increases the labor intensity and physical exertion of workers to some extent. Therefore, there is a need to design a device that can efficiently assemble arches. SUMMARY

[0004] The purpose of the present application is to provide a tunnel multi-arch pre-assembly device that can efficiently and accurately assemble multiple arches.

[0005] The present application is achieved by the following technical solution: The tunnel multi-arch pre-assembly device of the present application comprises a bottom plate, a support plate horizontally arranged on the bottom plate, a rotating shaft horizontally arranged in the middle of the support plate, a first driving device for driving the rotating shaft to rotate, a placement table horizontally arranged at one end of the support plate, a baffle arranged on both sides of the support plate, a connecting hole arranged on the baffle, and a pair of pushing devices arranged on both sides of the support plate; the support plate is used to support the arc-shaped arch, the two ends of the arch are detachably connected with the connecting holes on the baffles, the support plate is provided with arches on both sides, and a plurality of arches are distributed along the length direction of the support plate; the pushing devices are used to push the arches onto the placement table.

[0006] Further, the first driving device comprises a pair of support columns vertically arranged at both ends of the bottom plate, a first driven wheel arranged at the end of the rotating shaft away from the placement table, a first motor fixedly arranged on the bottom plate, a first driving wheel arranged on the output shaft of the first motor, and a first transmission belt connecting the first driving wheel and the first driven wheel; the two ends of the rotating shaft are rotationally connected with a pair of support columns.

[0007] Further, the pushing device comprises a pair of support rods respectively arranged at two ends of the support plate, a slide rod connected to upper ends of the pair of support rods, a screw rod rotatably connected to the pair of support rods, a pushing block threadedly connected to the screw rod, and a second driving device configured to drive the screw rod to rotate; lower ends of the support rods are connected to the bottom plate, and the pushing block is arranged between the pair of support rods; the slide rod is fixedly connected to the pair of support rods at two ends thereof, and the pushing block is slidably connected to the slide rod.

[0008] Further, the second driving device comprises a second driven wheel arranged at an end of the screw rod away from the placement table, a second motor fixedly arranged on one of the support rods, a second driving wheel arranged on an output shaft of the second motor, and a second transmission belt configured to connect the second driving wheel and the second driven wheel.

[0009] Further, lower ends of the support rods are hingedly connected to an upper side of the bottom plate; the pushing device further comprises a supporting plate configured to connect the pair of support rods, and a third driving device configured to drive the support rods to rotate about the lower ends thereof; the supporting plate is configured to support the arch frame below the support plate.

[0010] Further, the third driving device comprises a telescopic cylinder arranged on the bottom plate; a cylinder body of the telescopic cylinder is hingedly connected to the bottom plate, and a movable end of the telescopic cylinder is hingedly connected to the supporting plate.

[0011] Further, a middle portion of each side of the support plate is provided with an auxiliary plate, the auxiliary plate is arranged perpendicularly to the support plate, a length direction of the auxiliary plate is parallel to a length direction of the support plate, and a plurality of reinforcing ribs are arranged between the auxiliary plate and the support plate.

[0012] Further, an arc-shaped pad is arranged on a side of the auxiliary plate away from the support plate, a length direction of the pad is parallel to a length direction of the support plate, and the pad abuts against an inner side of the arch frame.

[0013] Further, the placement table comprises a placement plate arranged horizontally, a surrounding plate arranged on both sides of the placement plate, and a support column configured to support the placement plate; a gap is arranged between the placement plate and the support plate; when the support plate is in a horizontal state, an upper end surface of the placement plate is at the same height as an upper end surface of the support plate.

[0014] The technical scheme of the present application has at least the following advantages and beneficial effects: the tunnel multi-arch pre-assembly device of the present application uses a hoisting device such as a crane to hoist the arc-shaped arches onto the support plate, then uses a pushing device to slowly push the arches to the end of the support plate close to the placement table, then uses connecting members such as bolts to connect the end of the arches with the baffles on both sides of the support plate, then continues to use the hoisting device to hoist new arches onto the support plate, uses the pushing device to push the new arches to the already fixed arches and make them close together, then uses connecting members such as bolts to connect the end of the arches with the baffles on both sides of the support plate, repeats the operation until a proper number of arches are close together, then uses the first driving device to drive the support plate to rotate 180 degrees, then repeats the above steps, continues to hoist new arches onto the support plate and connects them with the baffles on the support plate, at the same time, a person can enter the underside of the support plate to connect (bolt connection or welding, etc.) the arches on the underside of the support plate, so that the multiple arches are connected into multi-arches, then uses the first driving device to drive the support plate to rotate 180 degrees, uses the pushing device to push the multi-arches onto the placement table, then continues to hoist new arches onto the support plate (the arches on the underside of the support plate are connected at the same time), the arches on the placement table need to be transferred to the inside of the tunnel for installation subsequently. In this way, only the first rotation of the support plate is in an unbalanced state on both sides, the weight on both sides is equivalent in subsequent rotations, so the operation of the support plate is very stable, when connecting the arches with the baffles and connecting the arches with each other, the height of the operation on the arches is not high, so it is very convenient for workers to connect, the operation difficulty is low, the connection efficiency is high, and since the arches are fixed first and then assembled, the assembly precision is also higher. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 A structural schematic view of a state of the tunnel multi-arch pre-assembly device provided by the embodiment of the present application; Figure 2 A structural schematic view of a state of the tunnel multi-arch pre-assembly device provided by the embodiment of the present application; Figure 1 A vertical sectional view; Figure 3 A structural schematic view of a state of the tunnel multi-arch pre-assembly device provided by the embodiment of the present application; Figure 4 A structural schematic view of the combination of the bottom plate and the support plate provided by the embodiment of the present application; Figure 5 A structural schematic view of the bottom plate part provided by the embodiment of the present application; Figure 6 A structural schematic view of the support plate part provided by the embodiment of the present application; Figure 7 A structural schematic view of the arch part provided by the embodiment of the present application; Figure 8 for Figure 5 Enlarged view of part A in the middle.

[0016] Icons: 10-Base plate, 11-Support plate, 12-Rotating shaft, 13-First drive device, 131-Support column, 132-First driven wheel, 133-First motor, 134-First driving wheel, 135-First transmission belt, 14-Baffle, 15-Auxiliary plate, 16-Reinforcing rib, 17-Pad plate, 20-Placement platform, 21-Placement board, 22-Enclosure panel, 23-Support column, 30-Pushing device, 31-Support rod, 32-Slide rod, 33-Screw, 34-Push block, 35-Second drive device, 351-Second driven wheel, 352-Second motor, 353-Second driving wheel, 354-Second transmission belt, 36-Pattern, 37-Third drive device, 371-Telescopic cylinder, 40-Arch frame. Detailed Implementation

[0017] Example The following description, in conjunction with specific embodiments, further illustrates the point, as shown in the appendix. Figure 1 - Appendix Figure 8As shown, the tunnel multi-arch frame pre-assembly device of this embodiment includes a base plate 10, a support plate 11 horizontally disposed on the base plate 10, a rotating shaft 12 horizontally disposed in the middle of the support plate 11, a first driving device 13 for driving the rotating shaft 12 to rotate, a platform 20 horizontally disposed at one end of the support plate 11, baffles 14 disposed on both sides of the support plate 11, connecting holes disposed on the baffles 14, and a pair of pushing devices 30 respectively disposed on both sides of the support plate 11; the support plate 11 is used to support the arc-shaped arch frame 40, the two ends of the arch frame 40 are detachably connected to the connecting holes on the baffles 14, the support plate 11 is provided on both sides, and multiple arch frames 40 are distributed along the length direction of the support plate 11; the pushing device 30 is used to push the arch frame 40 onto the platform 20. Specifically, during use, a hoist or other lifting device is used to hoist the arched frame 40 onto the support plate 11. Then, a pushing device 30 is used to slowly push the arched frame 40 to one end of the support plate 11 near the platform 20. Bolts or other connectors are then used to connect the end of the arched frame 40 to the baffles 14 on both sides of the support plate 11. The hoisting device is then used to hoist a new arched frame 40 onto the support plate 11, and the pushing device 30 is used to push the new arched frame 40 to the already fixed arched frame 40, ensuring they are tightly fitted together. Bolts or other connectors are then used to connect the end of the arched frame 40 to the baffles 14 on both sides of the support plate 11. This process is repeated. Continue until a suitable number of arch frames 40 are tightly pressed together. Then, use the first drive device 13 to drive the support plate 11 to rotate 180 degrees. Repeat the above steps to hoist new arch frames 40 onto the support plate 11 and connect them to the baffles 14 on the support plate 11. At the same time, a person can enter under the support plate 11 to connect the arch frames 40 on the underside of the support plate 11 (bolt connection or welding, etc.), so that multiple arch frames 40 are connected to each other to form multiple arch frames 40. Then, use the first drive device 13 to drive the support plate 11 to rotate 180 degrees, and use the pushing device 30 to push the multiple arch frames 40 onto the platform 20 (as shown in the attached figure). Figure 3 As shown), the new arch frame 40 is then hoisted onto the support plate 11 (the arch frame 40 on the underside of the support plate 11 is simultaneously connected). The arch frame 40 on the platform 20 will later be transferred to the tunnel for installation. In this way, the support plate 11 is only in a state of unbalanced force on both sides during the first rotation. During subsequent rotations, the weight on both sides is equal, so the operation of the support plate 11 is very stable. When connecting the arch frame 40 to the baffle 14, and when connecting the arch frames 40 to each other, the height at which the arch frame 40 needs to be operated is not high. Therefore, it is very convenient for workers to perform the connection operation. The operation is simple and the connection efficiency is high. Furthermore, the arch frame 40 is fixed first and then assembled, so the assembly accuracy is also higher.

[0018] The first driving device 13 in the embodiment includes a pair of support columns 131 vertically arranged at both ends of the bottom plate 10, a first driven wheel 132 arranged at the end of the rotating shaft 12 away from the support table 20, a first motor 133 fixedly arranged on the bottom plate 10, a first driving wheel 134 arranged on the output shaft of the first motor 133, and a first transmission belt 135 used to connect the first driving wheel 134 and the first driven wheel 132; the rotating shaft 12 is rotationally connected with the pair of support columns 131 at both ends. Specifically, the first motor 133 drives the driving wheel, the transmission belt and the driven wheel to rotate, thereby driving the rotating shaft 12 and the support plate 11 to rotate at any angle. In addition to the transmission belt transmission, a chain wheel and chain, a gear transmission and the like can also be used. In addition, for the arch frame 40 with large volume and weight, the hydraulic pressure can be used to drive the rotating shaft 12 to reciprocate by 180 degrees.

[0019] The pushing device 30 in the embodiment includes a pair of support rods 31 arranged at both ends of the support plate 11, a slide rod 32 used to connect the upper ends of the pair of support rods 31 and rotationally connected with the pair of support rods 31, a screw rod 33 rotationally connected with the pair of support rods 31, a push block 34 threadedly connected with the screw rod 33, and a second driving device 35 used to drive the screw rod 33 to rotate. The lower ends of the support rods 31 are connected with the bottom plate 10, and the push block 34 is arranged between the pair of support rods 31. The slide rod 32 is fixedly connected with the pair of support rods 31 at both ends, and the push block 34 is slidingly connected with the slide rod 32. The second driving device 35 includes a second driven wheel 351 arranged at the end of the screw rod 33 away from the support table 20, a second motor 352 fixedly arranged on one of the support rods 31, a second driving wheel 353 arranged on the output shaft of the second motor 352, and a second transmission belt 354 used to connect the second driving wheel 353 and the second driven wheel 351. Specifically, the second motor 352 drives the screw rod 33 to rotate, thereby driving the push block 34 to move along the screw rod 33, and the push block 34 can push the arch frame 40 to move on the support plate 11. The push blocks 34 on both sides of the support plate 11 move synchronously, which can achieve the effect of accurately positioning the arch frame 40. Therefore, the two second motors 352 need to use high-power servo motors that can be accurately controlled. One second motor 352 can also be used to synchronously drive the two screw rods 33 to rotate through the transmission belt (or chain wheel and chain). In addition to using the screw rod 33 to move the push block 34, a hydraulic cylinder, a linear motor and the like can also be used.

[0020] The lower end of the support rod 31 in the embodiment is hingedly connected to the upper side of the bottom plate 10; the pushing device 30 further comprises a supporting plate 36 for connecting a pair of support rods 31, and a third driving device 37 for driving the support rod 31 to rotate around the lower end thereof; the supporting plate 36 is used to support the arch frame 40 below the support plate 11. The third driving device 37 comprises a telescopic cylinder 371 arranged on the bottom plate 10; the cylinder body of the telescopic cylinder 371 is hingedly connected to the bottom plate 10, and the movable end of the telescopic cylinder 371 is hingedly connected to the supporting plate 36. Specifically, pushing the supporting plate 36 can temporarily support the arch frame 40 on the lower side of the support plate 11, which can better connect the arch frame 40 during the supporting process. Therefore, when the support plate 11 rotates, the supporting plate 36 needs to be separated from the arch frame 40 first, wherein the telescopic cylinder 371 can be used to pull the supporting plate 36 and the support rod 31, so that the supporting plate 36 and the support rod 31 move away from the support plate 11 and the arch frame 40, thereby avoiding hindering the rotation of the support plate 11 and the arch frame 40. When the rotation of the support plate 11 is completed, the telescopic cylinder 371 pushes the supporting plate 36 and the support rod 31 to move close to the support plate 11 again, and the supporting plate 36 abuts against the lower side of the arch frame 40. At this time, the pushing block 34 on the support rod 31 can push the arch frame 40 on the upper side of the support plate 11 to move on the support plate 11.

[0021] The middle part of the support plate 11 in the embodiment is provided with an auxiliary plate 15 on both sides, the auxiliary plate 15 is perpendicular to the support plate 11, and the length direction of the auxiliary plate 15 is parallel to the length direction of the support plate 11. A plurality of reinforcing ribs 16 are arranged between the auxiliary plate 15 and the support plate 11. The side of the auxiliary plate 15 away from the support plate 11 is provided with an arc-shaped backing plate 17, the length direction of the backing plate 17 is parallel to the length direction of the support plate 11, and the backing plate 17 abuts against the inner side of the arch frame 40. Specifically, the backing plate 17 and the auxiliary plate 15 can support the middle part of the arch frame 40, thereby avoiding the bending of the large-span arch frame 40, and better supporting and positioning the arch frame 40.

[0022] The storage platform 20 in the embodiment comprises a horizontally arranged storage plate 21, a surrounding plate 22 arranged on both sides of the storage plate 21, and a support column 23 for supporting the storage plate 21; a gap is arranged between the storage plate 21 and the support plate 11; when the support plate 11 is in a horizontal state, the upper end surface of the storage plate 21 is at the same height as the upper end surface of the support plate 11. Specifically, the assembled multiple arch frames 40 are temporarily placed on the storage plate 21, and a crane and a transport vehicle are required to be used to transport them to the inside of the tunnel for installation, wherein the storage plate 21 can also be directly replaced by a transport vehicle, that is, the multiple arch frames 40 assembled on the support plate 11 can be directly transferred to the transport vehicle and then transported away.

[0023] In summary, the tunnel multi-arch frame pre-assembly device of the embodiment uses a hoisting device such as a crane to hoist the arc-shaped arch frame 40 onto the support plate 11, then uses the pushing device 30 to slowly push the arch frame 40 to the end of the support plate 11 close to the placement table 20, then uses a bolt or the like connecting piece to connect the end of the arch frame 40 with the baffle 14 on both sides of the support plate 11, then continues to use the hoisting device to hoist a new arch frame 40 onto the support plate 11, uses the pushing device 30 to push the new arch frame 40 to the already fixed arch frame 40 and make them close, then uses a bolt or the like connecting piece to connect the end of the arch frame 40 with the baffle 14 on both sides of the support plate 11, repeats the operation until the appropriate number of arch frames 40 are close together, then uses the first driving device 13 to drive the support plate 11 to rotate 180 degrees, then repeats the above steps, continues to hoist a new arch frame 40 onto the support plate 11 and connects it with the baffle 14 on the support plate 11, at the same time, a person can enter the underside of the support plate 11 to connect (screw connection or welding, etc.) the arch frame 40 on the underside of the support plate 11, so that the multiple arch frames 40 are connected to form a multi-arch frame 40, then uses the first driving device 13 to drive the support plate 11 to rotate 180 degrees, uses the pushing device 30 to push the multi-arch frame 40 onto the placement table 20, then continues to hoist a new arch frame 40 onto the support plate 11 (the arch frame 40 on the underside of the support plate 11 is connected at the same time), the arch frame 40 on the placement table 20 needs to be transferred to the inside of the tunnel for installation subsequently. In this way, only the first rotation of the support plate 11 is in an unbalanced state on both sides, the weight on both sides is equivalent in subsequent rotations, so the operation of the support plate 11 is very stable, when connecting the arch frame 40 with the baffle 14 and connecting the arch frames 40 with each other, the height of the operation on the arch frame 40 is not high, so it is very convenient for workers to connect and operate, the operation difficulty is low, the connection efficiency is high, and the arch frame 40 is fixed first and then assembled, so the assembly precision is higher.

[0024] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Those skilled in the art can make various modifications and changes to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A tunnel multi-arch frame pre-assembly device, characterized by: The utility model provides a kind of arc-shaped arch support device, including bottom plate (10), support plate (11) horizontally arranged on the bottom plate (10), rotating shaft (12) is horizontally arranged in the middle of the support plate (11), first driving device (13) for driving the rotating shaft (12) rotation, placing table (20) is horizontally arranged in one end of the support plate (11), baffle (14) is arranged on both sides of the support plate (11), connecting hole is arranged on the baffle (14), and a pair of pusher (30) is arranged on both sides of the support plate (11) respectively; The support plate (11) is used to support the arc-shaped arch (40), and the two ends of the arch (40) are detachably connected with the connecting holes on the baffle (14). The support plate (11) is provided with the arch (40) on both sides, and a plurality of arches (40) are distributed along the length direction of the support plate (11). The pusher (30) is used to push the arch (40) to the placing table (20).

2. The tunnel multi-arc truss pre-assembly device according to claim 1, characterized in that: The first driving device (13) includes a pair of support columns (131) vertically arranged on both ends of the bottom plate (10), a first driven wheel (132) arranged at the end of the rotating shaft (12) away from the placing table (20), a first motor (133) fixedly arranged on the bottom plate (10), a first driving wheel (134) arranged on the output shaft of the first motor (133), and a first transmission belt (135) used to connect the first driving wheel (134) and the first driven wheel (132). The rotating shaft (12) is rotatably connected with a pair of support columns (131) at both ends.

3. The tunnel multi-arc truss pre-assembly device according to claim 1, wherein: The pusher (30) includes a pair of support rods (31) arranged on both ends of the support plate (11), a slide rod (32) used to connect the upper ends of the pair of support rods (31) and rotatably connected with the pair of support rods (31), a screw rod (33) rotatably connected with the pair of support rods (31), a push block (34) threadedly connected with the screw rod (33), and a second driving device (35) used to drive the screw rod (33) to rotate. The lower end of the support rod (31) is connected with the bottom plate (10), and the push block (34) is arranged between the pair of support rods (31). The slide rod (32) is fixedly connected with the pair of support rods (31) at both ends, and the push block (34) is slidably connected with the slide rod (32).

4. The tunnel multi-arc truss pre-assembly device according to claim 3, characterized in that: The second driving device (35) includes a second driven wheel (351) arranged at the end of the screw rod (33) away from the placing table (20), a second motor (352) fixedly arranged on one of the support rods (31), a second driving wheel (353) arranged on the output shaft of the second motor (352), and a second transmission belt (354) used to connect the second driving wheel (353) and the second driven wheel (351).

5. The tunnel multi-arc truss pre-assembly device according to claim 3, wherein: The lower end of the support rod (31) is hingedly connected with the upper side of the bottom plate (10). The pusher (30) further includes a supporting plate (36) used to connect the pair of support rods (31), and a third driving device (37) used to drive the support rod (31) to rotate around the lower end. The supporting plate (11) is provided with an arch frame (40) and a supporting plate (11) arranged below the arch frame (40).

6. The tunnel multi-arc truss pre-assembly device according to claim 5, wherein: The third driving device (37) comprises a telescopic cylinder (371) arranged on the bottom plate (10); the cylinder body of the telescopic cylinder (371) is hinged to the bottom plate (10), and the movable end of the telescopic cylinder (371) is hinged to the supporting plate (36).

7. The tunnel multi-arc truss pre-assembly device of claim 1, wherein: The supporting plate (11) is provided with an auxiliary plate (15) at the middle of both sides of the supporting plate (11); the auxiliary plate (15) is arranged perpendicularly to the supporting plate (11), and the length direction of the auxiliary plate (15) is parallel to the length direction of the supporting plate (11). A plurality of reinforcing ribs (16) are arranged between the auxiliary plate (15) and the supporting plate (11).

8. The tunnel multi-arc truss pre-assembly device according to claim 7, characterized in that: The side of the auxiliary plate (15) away from the supporting plate (11) is provided with an arc-shaped backing plate (17); the length direction of the backing plate (17) is parallel to the length direction of the supporting plate (11), and the backing plate (17) is in abutment with the inner side of the arch frame (40).

9. The tunnel multi-arc truss pre-assembly device of claim 1, wherein: The supporting plate (11) is provided with an arch frame (40) and a supporting plate (11) arranged below the arch frame (40). When the supporting plate (11) is in a horizontal state, the upper end surface of the supporting plate (21) is at the same height as the upper end surface of the supporting plate (11).

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