Transportation and assembly system of tunnel box culvert and heading machine comprising transportation and assembly system

Abstract

The invention provides a transporting and assembling system of a tunnel box culvert and a tunneling machine comprising the transporting and assembling system, and belongs to the technical field of shield tunneling machines. Comprising a transport vehicle, a box culvert unloader, a box culvert crane, a rotation device and a box culvert fine adjustment mechanism. The transport vehicles are arranged on the spliced box culvert in the tunnel and move on the spliced box culvert in the tunneling direction of the tunnel. The box culvert fine adjustment mechanism is arranged in an assembled box culvert in the tunnel; the box culvert unloader is arranged on a rear matched trailer in the heading machine and moves on the spliced box culvert in the tunnel in the tunneling direction of the tunnel. The box culvert crane is arranged on a walking track assembly in the tunneling machine and moves on the walking track assembly in the tunneling direction. And the rotating device is arranged on the transport vehicle. Compared with the prior art, the hoisting height of the arc-shaped box culvert piece to be hoisted can be reduced, the duct piece transportation efficiency can be improved, the hoisting waiting time of a rubber-tyred vehicle in a tunnel can be shortened, and the transportation and assembly efficiency of the arc-shaped box culvert piece and the duct piece in the tunnel is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of shield machines, and relates to a transportation and assembly system for a tunnel box culvert and a tunnel boring machine comprising the same. Background Art

[0002] During the construction process of super-large diameter tunnels, there are generally two modes according to the height size of the box culvert. The first mode is that the box culvert has a relatively large height size, and a prefabricated middle box culvert is used and assembled synchronously in the shield section, and the steel skeleton is built and the side box culvert is cast later. This construction method is time-consuming and labor-intensive, and the construction efficiency and construction cost are high. The existing box culvert lifting (such as the crane with the publication number CN108002229B) is suitable for the construction of the prefabricated middle high box culvert in the shield section, and the side box culvert is cast later or laid by the crane. The second mode is that the box culvert has a relatively small height size, and a prefabricated integral box culvert is used to assemble synchronously in the shield section. The existing box culvert lifting (such as the crane with the publication number CN113979320A) can only realize vertical lifting and cannot meet the space requirements for the flipping of the integral high box culvert.

[0003] The existing technologies for lifting, transporting, flipping and assembling prefabricated box culverts are generally divided into two types. The first type is a crane used for arc-shaped low box culverts, which uses four-point vertical lifting, a large left-right lateral movement distance, and staggered with the transport vehicle to lift the box culvert. The crane has a large clearance height and cannot achieve the lifting, flipping and assembly of arc-shaped high box culverts within the narrow space requirements. The second type is a crane used for prefabricated intermediate high box culverts, which uses an electric hoist and a movable pulley to separate and arrange, solving the problem of difficult lifting of high box culverts under ultra-low clearance conditions. However, this crane can only be used for the lifting, flipping and assembly of prefabricated intermediate box culverts, and cannot meet the requirements of unloading, transporting, flipping and assembling arc-shaped high box culverts. Summary of the invention

[0004] The present invention provides a tunnel box culvert transportation and assembly system, which solves the problems of transportation, unloading, lifting, turning over and assembly of arc-shaped box culvert parts in the prior art, reduces the time for lifting and assembling box culvert parts and lifting pipe segments, and improves the dynamic efficiency of material transportation in the tunnel.

[0005] The present invention provides a transportation and assembly system for a tunnel box culvert, comprising a transport vehicle, a box culvert unloader, a box culvert crane, a slewing device and a box culvert fine-tuning mechanism;

[0006] The transport vehicles are arranged on the assembled box culvert in the tunnel, and are displaced on the assembled box culvert along the tunnel excavation direction;

[0007] The box culvert fine-tuning mechanism is arranged inside the assembled box culvert in the tunnel;

[0008] The culvert unloader is arranged on the trailing trailer in the roadheader and displaces along the tunneling direction on the pre-assembled culvert in the tunnel;

[0009] The culvert crane is arranged on the traveling track assembly in the roadheader and displaces along the tunneling direction on the traveling track assembly;

[0010] The slewing device is arranged on the transport vehicle;

[0011] The transport vehicle transports the arc-shaped culvert segments to be assembled to the culvert unloader. The culvert unloader unloads the arc-shaped culvert segments to be assembled from the transport vehicle, and the culvert crane travels to the position of the culvert unloader to lift the arc-shaped culvert segments;

[0012] The culvert crane transports the arc-shaped culvert segments to be assembled from the lifting point to the slewing device. The slewing device drives the arc-shaped culvert segments to be assembled to rotate 90 degrees in the horizontal direction and then unloads the arc-shaped culvert segments to be assembled. The culvert crane then transports the arc-shaped culvert segments to be assembled to the culvert fine-tuning mechanism;

[0013] The culvert fine-tuning mechanism precisely adjusts the position of the arc-shaped culvert segments to be installed, so that the arc-shaped culvert segments to be installed are in a precise assembly posture and are precisely docked and assembled with the pre-assembled culvert.

[0014] Further, the culvert crane includes a traveling beam, and a lifting, traversing and flipping mechanism, a rack-type driving mechanism, a traveling wheel pair and a culvert spreader, all of which are installed on the traveling beam;

[0015] The lifting, traversing and flipping mechanism is used for lifting and flipping the arc-shaped culvert segments;

[0016] The rack-type driving mechanism is fixedly connected to the traveling beam. The traveling beam is installed with a traveling wheel pair and is slidably connected to the traveling track assembly in the roadheader through the traveling wheel pair, and is used for driving the culvert crane to displace on the traveling track assembly;

[0017] The culvert spreader is hinged to the driving end of the lifting, traversing and flipping mechanism and is used for grasping and fixing the arc-shaped culvert segments.

[0018] Further, the culvert spreader includes a grasping and bearing frame, and a hoist wire rope, an automatic pin cylinder assembly and a guide wheel assembly arranged on the grasping and bearing frame;

[0019] The grasping and bearing frame is hinged to the driving end of the lifting, traversing and flipping mechanism; and the grasping and bearing frame includes a first connecting section, a second connecting section and a third connecting section connected in sequence. The first connecting section and the third connecting section are arranged in parallel, and a strengthening section is also provided between the first connecting section and the third connecting section;

[0020] The lifting, traversing and tipping mechanism is slidably mounted on the traveling beam, and the lifting, traversing and tipping mechanism has the functions of lifting and sliding along the traveling beam;

[0021] Two groups of hoist steel wires are respectively arranged on the first connecting section and the third connecting section of the grasping and bearing frame. The two groups of hoist steel wires are arranged on the same vertical plane perpendicular to the displacement direction of the walking wheel pair, and both groups of hoist steel wires are connected to the driving end of the lifting, traversing and tipping mechanism. The grasping and bearing frame is driven by the lifting, traversing and tipping mechanism to rotate 90 degrees in the vertical direction;

[0022] The automatic bolt cylinder assembly has multiple groups respectively used for connecting different parts of the arc culvert, and is used to realize the connection or disassembly between the arc culvert and the grasping and bearing frame;

[0023] Contact connections are made between the grasping and bearing frame and the top arm of the arc culvert and between the grasping and bearing frame and the side wall of the arc culvert through at least one group of guide wheel assemblies.

[0024] Further, the transport vehicle includes a front cab, a rear cab, a power assembly, a walking wheel set and a flat bearing mechanism;

[0025] The front cab and the rear cab are connected by the flat bearing mechanism;

[0026] The power assembly is arranged at one end of the flat bearing mechanism close to the rear cab;

[0027] At least two groups of walking wheel sets are respectively arranged at the lower end of the flat bearing mechanism. The at least two groups of walking wheel sets are arranged at intervals, and multiple groups of walking wheel sets are displaced under the drive of the power assembly;

[0028] The slewing device is arranged on the flat bearing mechanism.

[0029] Further, the culvert unloader includes an unloading arm, a wheel mechanism and a jacking mechanism;

[0030] The unloading arm is vertically and liftably mounted on the rear supporting trailer;

[0031] The wheel mechanism is arranged on the assembled culvert and is used to drive the unloading arm to move back and forth along the surface of the assembled culvert in the tunnel;

[0032] The jacking mechanism connects the unloading arm and the wheel mechanism and is used to drive the unloading arm to move up and down vertically relative to the wheel mechanism.

[0033] Further, at least two groups of the jacking mechanism are arranged at intervals. A single group of the jacking mechanism includes a hydraulic cylinder and an auxiliary connecting piece. The hydraulic cylinder, the auxiliary connecting piece, the unloading arm and the walking mechanism are connected to form a four-bar linkage structure;

[0034] One end of both the hydraulic cylinder and the auxiliary connecting member is hinged to the traveling mechanism, and the other end of both the hydraulic cylinder and the auxiliary connecting member is hinged to the unloading arm.

[0035] Furthermore, a nylon backing plate is provided at the top of the unloading arm for lifting the arc-shaped culvert segment to be assembled.

[0036] Furthermore, the culvert fine-tuning mechanism includes a grasping mechanism, a fine-tuning mechanism, a translation mechanism, a leg jacking mechanism, a sliding assembly, a shoe support assembly, and a step-changing oil cylinder;

[0037] The grasping mechanism is used for lifting the arc-shaped culvert segment to be assembled, and the bottom of the grasping mechanism is connected to the fine-tuning mechanism;

[0038] The bottom of the fine-tuning mechanism is connected to the translation mechanism;

[0039] The translation mechanism is arranged on the assembled culvert, and leg jacking mechanisms are symmetrically arranged on both sides of the translation mechanism. The leg jacking mechanisms are used for providing a supporting force;

[0040] The sliding assembly is welded to two leg jacking mechanisms at the same time;

[0041] The shoe support assembly is installed in the track of the sliding assembly through traveling rollers;

[0042] The piston rod of the step-changing oil cylinder is connected to the sliding assembly, and the cylinder barrel of the step-changing oil cylinder is connected to the shoe support assembly. The step-changing oil cylinder is used for driving the translation mechanism to drive the arc-shaped culvert segment to be assembled to be displaced to the position to be assembled, and then the fine-tuning mechanism finely tunes the attitude of the arc-shaped culvert segment to be assembled, so as to precisely adjust between the arc-shaped culvert segment to be assembled and the assembled culvert, thereby facilitating the precise docking and assembly between the arc-shaped culvert segment to be assembled and the assembled culvert.

[0043] Furthermore, the slewing device includes a slewing outer ring, a slewing inner ring, a slewing support platform, and a slewing oil cylinder;

[0044] The slewing outer ring is sleeved on the slewing inner ring, and the slewing outer ring is fixedly connected to the flat plate bearing mechanism. The slewing inner ring is fixedly connected to the slewing support platform. One end of the slewing oil cylinder is connected to the slewing inner ring, and the other end of the slewing oil cylinder is connected to the flat plate support mechanism, and is used for driving the slewing inner ring to drive the slewing support platform to perform a 90-degree horizontal slewing relative to the slewing outer ring, thereby driving the arc-shaped culvert segment arranged on the slewing support platform to slewing.

[0045] The present invention also provides a tunneling machine, including the transportation and assembly system of the tunnel culvert as described above, as well as a rear support trailer, a single segment crane, and a traveling track assembly;

[0046] The rear supporting trailer is an auxiliary equipment of the tunnel boring machine, which is arranged in the tunnel along the tunnel boring direction and is used to install and carry the components of the arc culvert transportation and assembly system;

[0047] Both the culvert crane and the single-segment crane are arranged on the walking track assembly in the boring machine and are displaced along the tunnel boring direction on the walking track assembly;

[0048] The culvert unloader is arranged on the rear supporting trailer.

[0049] Compared with the prior art, the present invention has the following beneficial effects:

[0050] (1) For the transportation and assembly system of the tunnel arc culvert provided by the present invention, after the transport vehicle delivers the culvert in place, it can first be unloaded and lowered by the culvert unloader, so that the transport vehicle can quickly evacuate from the tunnel and continue the next transportation operation. Then, the arc culvert is transported to the assembly area by the culvert crane, and the culvert to be assembled is precisely assembled by the culvert fine-tuning mechanism. Compared with the prior art, it can not only reduce the lifting height of the arc culvert to be hoisted, but also improve the efficiency of segment transportation, and can also reduce the waiting time of the rubber-tyred vehicle for hoisting in the tunnel, thus improving the transportation and assembly efficiency of the arc culvert and segments in the tunnel.

[0051] (2) The transportation and assembly system and its construction method of a tunnel culvert provided by the present invention can not only enable the transport vehicle to quickly evacuate from the tunnel and continue the next culvert hoisting operation, but also reduce the lifting height of the arc culvert to be assembled, meet the hoisting requirements of large-size culverts, and can also quickly provide a transportation and hoisting channel for segments, improve the transportation efficiency of segments, and effectively solve the problems of unloading, hoisting and assembly of super-large diameter arc culverts.

[0052] (3) The present invention has the characteristics of strong practicability, precise positioning, high efficiency and reasonable structure, meets the needs of transporting, unloading, hoisting and assembling super-large size culverts in a narrow space by current customers, speeds up the boring and transportation efficiency, reduces the labor cost of enterprises, and increases the economic benefits of enterprises.

[0053] In addition to the purposes, features and advantages described above, the present invention has other purposes, features and advantages. The present invention will be further described in detail below with reference to the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings:

[0055] Figure 1It is a schematic diagram of the overall structure of a transportation and assembly system for a tunnel culvert in an embodiment of the present invention;

[0056] Figure 2 is Figure 1 a schematic cross-sectional view in the tunneling direction;

[0057] Figure 3 is Figure 1 a schematic diagram of the structure of the culvert crane in

[0058] Figure 4 is Figure 3 a schematic diagram of the structure of the connection between the culvert lifting tool and the arc-shaped culvert member in

[0059] Figure 5 is Figure 1 a schematic diagram of the structure of the transport vehicle in

[0060] Figure 6 is Figure 1 a schematic diagram of the structure of the culvert unloader in

[0061] Figure 7 is Figure 1 a schematic diagram of one perspective of the culvert fine-tuning mechanism in

[0062] Figure 8 is Figure 1 a schematic diagram of another perspective of the culvert fine-tuning mechanism in

[0063] Figure 9 is Figure 1 a schematic diagram of the structure of the slewing device in

[0064] Wherein:

[0065] 1. Rear supporting trailer, 2. Box culvert crane, 2.1 Lifting, traversing and flipping mechanism, 2.2 Rack-type driving mechanism, 2.3 Traveling wheel pair, 2.4 Box culvert lifting appliance, 2.5 Traveling beam, 2.4.1 Grabbing and bearing frame, 2.4.2 Hoist wire rope, 2.4.3 Automatic pin cylinder assembly, 2.4.4 Guide wheel assembly, 3. Transport vehicle, 3.1 Front cab, 3.2 Rear cab, 3.3 Power assembly, 3.4 Traveling wheel set, 3.5 Flatbed bearing mechanism, 4. Box culvert unloader, 4.1 Unloading arm, 4.2 Traveling mechanism, 4.3 Jacking mechanism, 4.3.1 Hydraulic cylinder, 4.3.2 Auxiliary support, 5. Box culvert fine-tuning mechanism, 5.1 Grabbing mechanism, 5.2 Fine-tuning mechanism, 5.3 Translation mechanism, 5.4 Leg jacking mechanism, 5.5 Sliding assembly, 5.6 Support shoe assembly, 5.7 Synchronous cylinder for step change, 6. Single segment lifting crane, 7. Curved box culvert piece, 8. Slewing device, 8.1 Outer slewing ring, 8.2 Inner slewing ring, 8.3 Slewing support platform, 8.4 Slewing cylinder, 9. Assembled box culvert, 10. Traveling track mechanism, 11. Limit block. Detailed implementation mode

[0066] In order to make the above objects, features and advantages of the present invention more clearly understood, the following will describe in detail the specific implementation modes of the present invention with reference to the drawings. It should be noted that the drawings of the present invention are all in simplified forms and use non-precise scales, only for conveniently and clearly assisting in the description of the implementation of the present invention; the several mentioned in the present invention are not limited to the specific quantities in the drawing examples; the orientation or positional relationships indicated by 'front','middle', 'rear', 'left', 'right', 'up', 'down', 'top', 'bottom', 'middle' etc. in the present invention are all based on the orientation or positional relationships shown in the drawings of the present invention, and do not indicate or imply that the devices or components referred to must have a specific orientation, nor can it be understood as a limitation to the present invention.

[0067] Embodiment:

[0068] See Figure 1 and Figure 2 As shown in and, a transportation and assembly system for tunnel box culverts provided by the present invention includes a transport vehicle 3, a box culvert unloader 4, a box culvert crane 2, a slewing device 8 and a box culvert fine-tuning mechanism 5;

[0069] The slewing device 8 is arranged on the transport vehicle 3;

[0070] The transport vehicle 3 transports the to-be-assembled curved box culvert piece 7 to the box culvert unloader 4, the box culvert unloader 4 unloads the to-be-assembled curved box culvert piece 7 from the transport vehicle 3, and the box culvert crane 2 travels to the position of the box culvert unloader 4 to lift the curved box culvert piece 7;

[0071] The box culvert crane 2 transports the arc-shaped box culvert member 7 to be assembled from the lifting point to the slewing device 8. The slewing device 8 drives the arc-shaped box culvert member 7 to be assembled to rotate 90 degrees horizontally, and then unloads the arc-shaped box culvert member 7 to be assembled. The box culvert crane 2 then transports the arc-shaped box culvert member 7 to be assembled to the box culvert fine-tuning mechanism 5;

[0072] The box culvert fine-tuning mechanism 5 precisely adjusts the position of the arc-shaped box culvert member 7 to be installed, so that the arc-shaped box culvert member 7 to be installed is in a precise assembly posture and is precisely docked and assembled with the assembled box culvert 9.

[0073] In this embodiment, after the transport vehicle 3 transports the arc-shaped box culvert member 7 to be assembled in place, it can first be unloaded through the box culvert unloader 4, then lifted, transported and flipped into place through the box culvert crane 2, and finally the arc-shaped box culvert member 7 to be assembled is precisely adjusted and assembled through the box culvert fine-tuning mechanism 5. Therefore, not only can the transport vehicle 3 quickly evacuate from the tunnel and continue the next box culvert hoisting operation, but also the lifting height of the arc-shaped box culvert member to be assembled can be reduced to meet the lifting requirements of the large-size box culvert ring width. In addition, a segment transport and hoisting channel can be quickly provided to improve the transport efficiency of the segments. Compared with the prior art, it can minimize the waiting time of the transport vehicle for unloading in the tunnel, keep the transport channel smooth, and improve the dynamic efficiency of material transport in the tunnel. Moreover, the single-segment crane 6 and the box culvert fine-tuning mechanism 5 can work simultaneously, thus saving construction time and improving construction efficiency.

[0074] Further, as shown in Figure 3 The box culvert crane 2 includes a walking beam 2.5, and a lifting, traversing and flipping mechanism 2.1, a rack-type driving mechanism 2.2, a walking wheel pair 2.3 and a box culvert lifting appliance 2.4 all installed on the walking beam 2.5;

[0075] The lifting, traversing and flipping mechanism 2.1 is used for lifting and flipping the arc-shaped box culvert member 7;

[0076] The rack-type driving mechanism 2.2 is fixedly connected to the walking beam 2.5. The walking beam 2.5 is provided with a walking wheel pair 2.3, and is slidably connected to the walking track assembly 10 through the walking wheel pair 2.3, and is used for driving the box culvert crane 2 to displace on the walking track assembly 10;

[0077] The box culvert lifting appliance 2.4 is hinged to the driving end of the lifting, traversing and flipping mechanism 2.1, and is used for grasping and fixing the arc-shaped box culvert member 7.

[0078] Further preferably, as shown in Figure 4 The box culvert lifting appliance 2.4 includes a grasping and bearing frame 2.4.1, and a hoist wire rope 2.4.2, an automatic pin cylinder assembly 2.4.3 and a guide wheel assembly 2.4.4 arranged on the grasping and bearing frame 2.4.1;

[0079] The grasping and bearing frame 2.4.1 is arranged in a door frame shape, and the grasping and bearing frame 2.4.1 is hinged to the driving end of the rack-type driving mechanism 2.2; specifically, the grasping and bearing frame 2.4.1 includes a first connecting section, a second connecting section and a third connecting section connected in sequence, the first connecting section and the third connecting section are arranged in parallel, and a strengthening section is also provided between the first connecting section and the third connecting section;

[0080] The lifting, traversing and flipping mechanism 2.1 is slidably installed on the walking beam 2.5, and the lifting, traversing and flipping mechanism 2.1 has the functions of lifting and sliding along the walking beam 2.5;

[0081] Preferably, two groups of hoist steel wires 2.4.2 are respectively arranged on the first connecting section and the third connecting section of the grasping and bearing frame 2.4.1. The two groups of hoist steel wires 2.4.2 are arranged on the same vertical plane perpendicular to the displacement direction of the walking wheel pair 2.3, and preferably, two pieces of each group of hoist steel wires 2.4.2 are arranged at intervals along the same horizontal plane; all four pieces of hoist steel wires 2.4.2 are connected to the driving end of the lifting, traversing and flipping mechanism 2.1, and the grasping and bearing frame 2.4.1 is driven by the lifting, traversing and flipping mechanism 2.1 to perform a 90-degree flip along the vertical direction;

[0082] Preferably, four groups of automatic pin cylinder assemblies 2.4.3 are respectively provided for connecting to different parts of the arc-shaped culvert 7; a single group of automatic pin cylinder assemblies 2.4.3 includes an oil cylinder, a pin, a pin shaft, a sleeve and a base. The cylinder barrel of the oil cylinder is fixedly connected to the grasping and bearing frame 2.4.1 through the base, the piston rod of the oil cylinder is connected to the pin through the pin shaft, and the sleeve is arranged on the grasping and bearing frame 2.4.1 along the displacement direction of the pin; under the telescopic action of the oil cylinder, the pin passes through the sleeve and inserts into or withdraws from the pin hole provided on the arc-shaped culvert 7 to realize the mutual connection or disassembly between the arc-shaped culvert 7 and the grasping and bearing frame 2.4.1;

[0083] Preferably, multiple groups of guide wheel assemblies 2.4.4 are respectively provided for contact connection with different parts of the arc-shaped culvert 7; specifically, at least one group of guide wheel assemblies 2.4.4 is used for contact connection between the grasping and bearing frame 2.4.1 and the top arm of the arc-shaped culvert 7 and between the grasping and bearing frame 2.4.1 and the side wall of the arc-shaped culvert 7.

[0084] Further, as shown in Figure 5 the transport vehicle 3 includes a front cab 3.1, a rear cab 3.2, a power assembly 3.3, a walking wheel set 3.4 and a flat plate bearing mechanism 3.5;

[0085] The front cab 3.1 is arranged in a foldable structure;

[0086] The front cab 3.1 and the rear cab 3.2 are connected via a flat plate bearing mechanism 3.5;

[0087] The power assembly 3.3 is arranged on one end of the flat-plate bearing mechanism 3.5 close to the rear cab 3.2;

[0088] The running wheel groups 3.4 are provided with at least two groups which are respectively arranged at the lower end of the flat plate bearing mechanism 3.5. The at least two groups of running wheel groups 3.4 are arranged at intervals from each other. The multiple groups of running wheel groups 3.4 are displaced under the drive of the power assembly 3.3.

[0089] The rotating device 8 is arranged on the flat plate carrying mechanism 3.5.

[0090] For further information, see Figure 6 As shown, the box culvert unloader 4 includes an unloading arm 4.1, a wheel mechanism 4.2 and a jacking mechanism 4.3;

[0091] The unloading arm 4.1 is installed on the rear supporting trailer 1 in a vertically lifting manner;

[0092] The wheel mechanism 4.2 is arranged on the assembled box culvert 9, and is used to drive the unloading arm 4.1 to move forward and backward along the surface of the assembled box culvert 9 in the tunnel;

[0093] The lifting mechanism 4.3 connects the unloading arm 4.1 and the wheel mechanism 4.2, and is used to drive the unloading arm 4.1 to perform lifting movement in the vertical direction relative to the wheel mechanism 4.2.

[0094] Further preferably, the lifting mechanism 4.3 is provided with at least two groups spaced apart from each other, and a single group of the lifting mechanism 4.3 includes a hydraulic cylinder 4.3.1 and an auxiliary connecting piece 4.3.2, and the hydraulic cylinder 4.3.1, the auxiliary connecting piece 4.3.2, the unloading arm 4.1 and the traveling mechanism 4.2 are connected to each other to form a four-link structure. Specifically, one end of the hydraulic cylinder 4.3.1 and the auxiliary connecting piece 4.3.2 are hinged to the traveling mechanism 4.2, and the other ends of the hydraulic cylinder 4.3.1 and the auxiliary connecting piece 4.3.2 are hinged to the unloading arm 4.1.

[0095] Further preferably, a nylon pad is provided on the top of the unloading arm 4.1 for supporting the arc-shaped box culvert member 7 to be assembled.

[0096] With such arrangement, when the transport vehicle 3 delivers the arc-shaped box culvert member 7 to be assembled to the place, the unloading arm 4.1 of the box culvert unloader 4 can be raised a certain distance and extended to the bottom of the arc-shaped box culvert member 7 to be assembled on the transport vehicle 3 to support it; then the unloading arm 4.1 continues to rise, thereby lifting the arc-shaped box culvert member 7 as a whole and making it separate from the transport vehicle 3, completing the unloading of the box culvert. At this point, the transport vehicle 3 can quickly evacuate from the tunnel.

[0097] Further, as shown in Figure 7 and Figure 8 the box culvert fine-tuning mechanism 5 includes a grasping mechanism 5.1, a fine-tuning mechanism 5.2, a translation mechanism 5.3, a leg jacking mechanism 5.4, a sliding assembly 5.5, a support shoe assembly 5.6, and a step-changing oil cylinder 5.7;

[0098] The grasping mechanism 5.1 is used to lift the arc-shaped box culvert member 7 to be assembled, and the bottom of the grasping mechanism 5.1 is connected to the fine-tuning mechanism 5.2;

[0099] The bottom of the fine-tuning mechanism 5.2 is connected to the translation mechanism 5.3;

[0100] The translation mechanism 5.3 is arranged on the assembled box culvert 9, and leg jacking mechanisms 5.4 are symmetrically arranged on both sides of the translation mechanism 5.3. The leg jacking mechanism 5.4 is used to provide a supporting force;

[0101] The sliding assembly 5.5 is welded to two leg jacking mechanisms 5.4 at the same time;

[0102] The support shoe assembly 5.6 is installed in the track of the sliding assembly 5.5 through walking rollers;

[0103] The piston rod of the step-changing oil cylinder 5.7 is connected to the sliding assembly 5.5, and the cylinder barrel of the step-changing oil cylinder 5.7 is connected to the support shoe assembly 5.6. The step-changing oil cylinder 5.7 is used to drive the translation mechanism 5.3 to drive the arc-shaped box culvert member 7 to be assembled to move to the position to be assembled, and then the fine-tuning mechanism 5.2 fine-tunes the posture of the arc-shaped box culvert member 7 to be assembled, so as to accurately adjust between the arc-shaped box culvert member 7 to be assembled and the assembled box culvert 9, so as to facilitate the accurate docking and assembly between the arc-shaped box culvert member 7 to be assembled and the assembled box culvert 9.

[0104] Further preferably, at least two groups of fine-tuning mechanisms 5.2 are symmetrically arranged along the central axis of the grasping mechanism 5.1. One end of a single-group fine-tuning mechanism 5.2 is hinged to the grasping mechanism 5.1, and the other end of the single-group fine-tuning mechanism 5.2 is hinged to the translation mechanism 5.3, so as to adjust the relative position between the grasping mechanism 5.1 and the translation mechanism 5.3.

[0105] Further, as shown in Figure 9 the slewing device 8 includes a slewing outer ring 8.1, a slewing inner ring 8.2, a slewing support platform 8.3, and a slewing oil cylinder 8.4;

[0106] The rotary outer ring 8.1 is sleeved on the rotary inner ring 8.2, and the rotary outer ring 8.1 is fixedly connected to the flat plate bearing mechanism 3.5. The rotary inner ring 8.2 is fixedly connected to the rotary support platform 8.3. One end of the rotary oil cylinder 8.4 is connected to the rotary inner ring 8.2, and the other end of the rotary oil cylinder 8.4 is connected to the rotary outer ring 8.1, which is used to drive the rotary inner ring 8.2 to drive the rotary support platform 8.3 to rotate horizontally by 90 degrees relative to the rotary outer ring 8.1, thereby driving the arc-shaped culvert piece 7 arranged on the rotary support platform 8.3 to rotate.

[0107] Further preferably, the rotary oil cylinder 8.4 is internally provided with a stroke sensor, and by detecting the telescopic stroke of the rotary oil cylinder 8.4, it is determined that the 90-degree horizontal rotation of the arc-shaped culvert piece 7 is in place.

[0108] As a further embodiment of the present invention, referring to Figure 1 and Figure 2 shown, the present invention also provides a tunneling machine, including the transportation and assembly system of the above-mentioned tunnel culvert, as well as the rear support trailer 1, the single segment crane 6 and the walking track assembly 10;

[0109] The rear support trailer 1 is an auxiliary device of the tunnel boring machine, which is arranged in the tunnel along the tunnel boring direction, and is mainly used for installing and carrying the components of the arc-shaped culvert transportation and assembly system;

[0110] Both the culvert crane 2 and the single segment crane 6 are slidably installed on the rear support trailer 1, and can be displaced along the boring direction on the rear support trailer 1;

[0111] The culvert unloader 4 is arranged on the rear support trailer 1.

[0112] The single segment crane 6 and the culvert crane 2 are arranged at intervals along the boring direction, and both the single segment crane 6 and the culvert crane 2 are slidably installed on the walking track assembly 10 and are displaced along the boring direction on the walking track assembly 10.

[0113] Preferably, a limiting member 11 for limiting the displacement range of the single segment crane 6 and the culvert crane 2 is also provided on the walking track assembly 10. Specifically, the limiting block 11 can be arranged at both ends of the walking track mechanism 10 to limit the movement of the culvert crane 2 and the single segment crane 6 by abutting against them, thereby preventing the two from derailing during movement. At the same time, an electrical limiting device is arranged between the culvert crane 2 and the single segment crane 6 to prevent the two from colliding during movement.

[0114] Preferably, in order to avoid movement interference, an electrical limiting device is also arranged between the culvert crane 2 and the single segment crane 6.

[0115] Preferably, for the convenience of overhauling and replacing the walking track assembly 10, in this embodiment, it is detachably connected to the rear supporting trailer 1. Specifically, the walking track assembly 10 can be installed on the rear supporting trailer 1 through fasteners such as bolts.

[0116] As a further embodiment of the present invention, the present invention also provides a method for transporting and assembling a tunnel culvert using the above-mentioned tunnel culvert transportation and assembly system, which specifically includes the following steps:

[0117] S1. Transport the arc-shaped culvert placed upside down along the tunnel driving direction to the culvert rotation and unloading area arranged at the rear of the connecting bridge of the rear supporting trailer by a transport vehicle;

[0118] S2. Start the rotation device of the transport vehicle to act, horizontally rotate the arc-shaped culvert placed upside down by 90°, and after detecting in place;

[0119] S3. Extend the lifting device of the culvert unloader to support the unloading arm and move it under the arc-shaped culvert placed upside down, and continue to lift until the arc-shaped culvert is lifted away from the flat surface of the transport vehicle;

[0120] S4. Reverse the transport vehicle and leave the culvert rotation and unloading area at the position of the rear supporting trailer, and the next transport operation can be performed;

[0121] S5. Retract the lifting device of the culvert unloader, drive the unloading arm to lower the arc-shaped culvert together to the lowest height;

[0122] S6. Start the culvert crane and move towards the position of the arc-shaped culvert to be assembled until it moves above the arc-shaped culvert;

[0123] S7. Lower the culvert lifting tool to grab the arc-shaped culvert, and after lifting the culvert lifting tool to the limit limit, move forward to the culvert turning area;

[0124] S8. The culvert lifting tool drives the culvert to rotate vertically by 90°, and after the culvert is in a vertical state, lower the culvert and perform block-by-block assembly;

[0125] S9. After the arc-shaped culvert is placed in place, retract the culvert lifting tool;

[0126] S10. Start the stepping device of the culvert fine-tuning mechanism, install it into the assembled arc-shaped culvert, extend the adjusting device and the support base from the assembled arc-shaped culvert, and lift the arc-shaped culvert to be assembled;

[0127] S11. Adjust the pose of the adjusting device to assemble the arc-shaped culvert to be assembled with the assembled culvert.

[0128] The transportation and assembly system for the tunnel arc culvert provided by the present invention includes a rear support trailer, a culvert crane, a transport vehicle, a culvert unloader, a culvert fine-tuning mechanism, and a single segment crane. Among them:

[0129] The rear support trailer is an auxiliary device for the tunnel boring machine, which is arranged in the tunnel along the tunnel boring direction and is mainly used for installing and carrying the components of the arc culvert transportation and assembly system;

[0130] The culvert crane can be movably installed on the rear support trailer along the tunneling plan. It is mainly used for lifting and flipping the arc culvert, and transporting the culvert to the position to be assembled in the tunnel for assembly, so as to allow the transportation vehicles and personnel in the tunnel to pass through;

[0131] The transport vehicle is a dynamic moving device that moves back and forth in front of and behind the already laid culvert along the tunnel boring direction. It transports the arc culvert to the culvert rotation and unloading area in the tunnel, and is equipped with a rotation device for the horizontal rotation of the arc culvert;

[0132] The culvert unloader is arranged on the rear support trailer. It is mainly used for unloading the arc culvert from the transport vehicle after the rubber-tyred vehicle transports it in place and rotates 90° horizontally, so that the transport vehicle can quickly unload and evacuate and enter the next culvert transportation operation;

[0133] The culvert fine-tuning mechanism is arranged inside the already assembled culvert and is mainly used for the precise adjustment and assembly of the arc culvert to be assembled and the already laid culvert;

[0134] The single segment crane is movably arranged on the rear support trailer and is mainly used for lifting the transport segment from the segment transport vehicle to the designated position.

[0135] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A transportation and assembly system for a tunnel box culvert, characterized in that: It comprises a transport vehicle (3), a box culvert unloader (4), a box culvert crane (2), a slewing device (8) and a box culvert fine adjustment mechanism (5); The transport vehicles (3) are arranged on the assembled box culvert (9) in the tunnel, and are displaced on the assembled box culvert (9) along the tunnel excavation direction; The box culvert fine-tuning mechanism (5) is arranged inside the assembled box culvert (9) in the tunnel; The box culvert unloader (4) is arranged on a rear supporting trailer (1) in the tunnel boring machine, and is displaced on the assembled box culvert (9) in the tunnel along the tunnel excavation direction; The box culvert crane (2) is arranged on a travel track assembly (10) in a tunnel boring machine, and moves on the travel track assembly (10) along a tunnel boring direction; The rotating device (8) is arranged on the transport vehicle (3); The transport vehicle (3) transports the arc-shaped box culvert member (7) to be assembled to the box culvert unloader (4), the box culvert unloader (4) unloads the arc-shaped box culvert member (7) to be assembled from the transport vehicle (3), and the box culvert crane (2) moves to the position of the box culvert unloader (4) to lift the arc-shaped box culvert member (7); The box culvert crane (2) transports the arc-shaped box culvert member (7) to be assembled from the lifting point to the rotating device (8), and the rotating device (8) drives the arc-shaped box culvert member (7) to be assembled to rotate 90 degrees in the horizontal direction, and then the arc-shaped box culvert member (7) to be assembled is unloaded, and the box culvert crane (2) then transports the arc-shaped box culvert member (7) to be assembled to the box culvert fine adjustment mechanism (5); The box culvert fine-adjusting mechanism (5) accurately adjusts the position of the arc-shaped box culvert component (7) to be installed, so that the arc-shaped box culvert component (7) to be installed is in a precise assembly posture and is accurately docked and assembled with the assembled box culvert (9).

2. The tunnel culvert transportation and assembly system according to claim 1 is characterized in that: The box culvert crane (2) comprises a walking beam (2.5), a lifting, transverse shifting and turning mechanism (2.1), a rack-type driving mechanism (2.2), a walking wheel pair (2.3) and a box culvert hoist (2.4) all of which are installed on the walking beam (2.5); The lifting, transverse movement and flipping mechanism (2.1) is used for lifting and flipping the arc-shaped box culvert member (7); The rack-type drive mechanism (2.2) is fixedly connected to a walking beam (2.5), a walking wheel pair (2.3) is installed on the walking beam (2.5), and is slidably connected to a walking track assembly (10) in the tunneling machine through the walking wheel pair (2.3), so as to drive the box culvert crane (2) to move on the walking track assembly (10); The box culvert lifting device (2.4) is hinged to the driving end of the lifting and transverse shifting and flipping mechanism (2.1) and is used to grasp and fix the arc-shaped box culvert member (7).

3. The tunnel culvert transportation and assembly system according to claim 2 is characterized in that: The box culvert lifting device (2.4) comprises a grabbing load-bearing frame (2.4.1), a winch wire rope (2.4.2), an automatic latch cylinder assembly (2.4.3) and a guide wheel assembly (2.4.4) arranged on the grabbing load-bearing frame (2.4.1); The grabbing carrier (2.4.1) is hinged to the driving end of the lifting, transverse movement and flipping mechanism (2.1); and the grabbing carrier (2.4.1) comprises a first connecting section, a second connecting section and a third connecting section which are connected in sequence, the first connecting section and the third connecting section are arranged parallel to each other, and a reinforcement section is also arranged between the first connecting section and the third connecting section; The lifting, transverse movement and flipping mechanism (2.1) is slidably mounted on the walking beam (2.5), and the lifting, transverse movement and flipping mechanism (2.1) has the functions of lifting and lowering and sliding along the walking beam (2.5); The hoisting machine wire rope (2.4.2) is provided with two groups which are respectively arranged on the first connecting section and the third connecting section of the grabbing carrier (2.4.1); the two groups of hoisting machine wire ropes (2.4.2) are mutually arranged on the same vertical plane which is perpendicular to the displacement direction of the walking wheel pair (2.3); and the two groups of hoisting machine wire ropes (2.4.2) are both connected to the driving end of the lifting and transverse shifting and turning mechanism (2.1); the grabbing carrier (2.4.1) is turned 90 degrees in the vertical direction by the driving of the lifting and transverse shifting and turning mechanism (2.1); The automatic latch oil cylinder assembly (2.4.3) is provided with a plurality of groups respectively used for connecting with different parts of the arc-shaped box culvert member (7), so as to realize the mutual connection or disassembly between the arc-shaped box culvert member (7) and the grabbing support frame (2.4.1); The grabbing support frame (2.4.1) and the top arm of the arc-shaped box culvert (7), as well as the grabbing support frame (2.4.1) and the side wall of the arc-shaped box culvert (7), are contact-connected via at least one set of guide wheel assemblies (2.4.4).

4. The transportation and assembly system for a tunnel culvert according to any one of claims 1 to 3, characterized in that: The transport vehicle (3) comprises a front cab (3.1), a rear cab (3.2), a power assembly (3.3), a running wheel assembly (3.4) and a flat plate bearing mechanism (3.5); The front cab (3.1) and the rear cab (3.2) are connected via a flat plate bearing mechanism (3.5); The power assembly (3.3) is arranged on one end of the flat-plate bearing mechanism (3.5) close to the rear cab (3.2); The walking wheel groups (3.4) are provided with at least two groups which are respectively arranged at the lower ends of the flat plate bearing mechanism (3.5), the at least two groups of walking wheel groups (3.4) are arranged at intervals from each other, and the multiple groups of walking wheel groups (3.4) are displaced under the drive of the power assembly (3.3); The rotating device (8) is arranged on the flat plate bearing mechanism (3.5).

5. The tunnel culvert transportation and assembly system according to claim 4 is characterized in that: The box culvert unloader (4) comprises an unloading arm (4.1), a wheel mechanism (4.2) and a lifting mechanism (4.3); The unloading arm (4.1) is installed on the rear supporting trailer (1) in a vertically lifting manner; The wheel mechanism (4.2) is arranged on the assembled box culvert (9) and is used to drive the unloading arm (4.1) to move forward and backward along the surface of the assembled box culvert (9) in the tunnel; The lifting mechanism (4.3) connects the unloading arm (4.1) and the wheel mechanism (4.2), and is used to drive the unloading arm (4.1) to perform lifting movement in a vertical direction relative to the wheel mechanism (4.2).

6. The tunnel culvert transportation and assembly system according to claim 5 is characterized in that: The lifting mechanism (4.3) is provided with at least two groups spaced apart from each other, and a single group of the lifting mechanism (4.3) comprises a hydraulic cylinder (4.3.1) and an auxiliary connecting piece (4.3.2), and the hydraulic cylinder (4.3.1), the auxiliary connecting piece (4.3.2), the unloading arm (4.1) and the walking mechanism (4.2) are connected to each other to form a four-link structure; One end of the hydraulic cylinder (4.3.1) and the auxiliary connecting piece (4.3.2) are both hinged to the walking mechanism (4.2), and the other end of the hydraulic cylinder (4.3.1) and the auxiliary connecting piece (4.3.2) are both hinged to the unloading arm (4.1).

7. The transportation and assembly system for a tunnel culvert according to claim 5 is characterized in that: A nylon pad is also provided on the top of the unloading arm (4.1) for supporting the arc-shaped box culvert member (7) to be assembled.

8. The transportation and assembly system for a tunnel box culvert according to any one of claims 5 to 7, characterized in that: The box culvert fine adjustment mechanism (5) comprises a grabbing mechanism (5.1), a fine adjustment mechanism (5.2), a translation mechanism (5.3), a leg lifting mechanism (5.4), a sliding assembly (5.5), a support shoe assembly (5.6) and a step-changing oil cylinder (5.7); The grabbing mechanism (5.1) is used to lift the arc-shaped box culvert member (7) to be assembled, and the bottom of the grabbing mechanism (5.1) is connected to the fine-tuning mechanism (5.2); The bottom of the fine-tuning mechanism (5.2) is connected to the translation mechanism (5.3); The translation mechanism (5.3) is arranged on the assembled box culvert (9), and outrigger lifting mechanisms (5.4) are symmetrically arranged on both sides of the translation mechanism (5.3), and the outrigger lifting mechanisms (5.4) are used to provide supporting force; The sliding assembly (5.5) is welded to the two leg lifting mechanisms (5.4) at the same time; The support shoe assembly (5.6) is installed in the track of the sliding assembly (5.5) via a walking roller; The piston rod of the step-changing oil cylinder (5.7) is connected to the sliding assembly (5.5), and the cylinder barrel of the step-changing oil cylinder (5.7) is connected to the support shoe assembly (5.6). The step-changing oil cylinder (5.7) is used to drive the translation mechanism (5.3) to drive the arc-shaped box culvert component (7) to be assembled to move to the position to be assembled, and then the fine-tuning mechanism (5.2) fine-adjusts the posture of the arc-shaped box culvert component (7) to be assembled, so that the arc-shaped box culvert component (7) to be assembled and the assembled box culvert (9) can be precisely adjusted, thereby facilitating the precise docking and assembly between the arc-shaped box culvert component (7) to be assembled and the assembled box culvert (9).

9. The transportation and assembly system for a tunnel culvert according to claim 8, characterized in that: The slewing device (8) comprises a slewing outer ring (8.1), a slewing inner ring (8.2), a slewing support platform (8.3) and a slewing oil cylinder (8.4); The rotating outer ring (8.1) is sleeved on the rotating inner ring (8.2), and the rotating outer ring (8.1) is fixedly connected to the flat bearing mechanism (3.5), and the rotating inner ring (8.2) is fixedly connected to the rotating support platform (8.3). One end of the rotating oil cylinder (8.4) is connected to the rotating inner ring (8.2), and the other end of the rotating oil cylinder (8.4) is connected to the flat support mechanism (3.5), and is used to drive the rotating inner ring (8.2) to drive the rotating support platform (8.3) to perform a 90-degree horizontal rotation relative to the rotating outer ring (8.1), thereby driving the arc-shaped box culvert member (7) arranged on the rotating support platform (8.3) to rotate.

10. A tunnel boring machine, characterized in that: It comprises the tunnel culvert transport and assembly system as claimed in claim 9, as well as a rear supporting trailer (1), a single-segment crane (6) and a travel track assembly (10); The rear supporting trailer (1) is an auxiliary device of the tunnel boring machine, which is arranged in the tunnel along the tunnel boring direction and is used to install and carry the parts of the arc box culvert transport assembly system; The box culvert crane (2) and the single segment crane (6) are both arranged on a travel track assembly (10) in the tunnel boring machine, and are both displaced on the travel track assembly (10) along the tunnel boring direction; The box culvert unloader (4) is arranged on the rear supporting trailer (1).

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