Steel arch support system

Abstract

The present invention provides a steel arch support system. The steel arch support system includes a transportation mechanism, a grasping mechanism, an assembling mechanism, a tightening mechanism and a sealing mechanism; the transportation mechanism moves relative to the main beam along the extension direction of the main beam to move a plurality of steel arches to the grasping mechanism; the grasping mechanism moves relative to the main beam along the extension direction of the main beam to move the plurality of steel arches to the assembling mechanism one by one; the assembling mechanism is used for splicing the plurality of steel arches into an annular structure; the tightening mechanism moves relative to the extension direction of the main beam to abut against the inner wall of the annular structure, and the tightening mechanism moves radially relative to the main beam to abut the outer wall of the annular structure against the surrounding rock; the sealing mechanism moves relative to the extension direction of the main beam to weld the annular structure. The steel arch support system provided by the present invention has relatively high working efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of tunnel boring machines, and particularly to a steel arch support system. Background Art

[0002] A TBM (Tunnel Boring Machine) is a large-scale device specifically used for excavating hard rock tunnels, and has functions such as excavation, mucking, and support, and is widely used in the field of hard rock excavation.

[0003] Currently, the assembly of the TBM steel arch is generally carried out by manual operation. Multiple steel arches are connected and assembled manually to form a ring-shaped whole, and then tightened against the rock wall to achieve support.

[0004] However, this manual operation method has low work efficiency. Summary of the Invention

[0005] The present invention provides a steel arch support system with high work efficiency.

[0006] The present invention provides a steel arch support system for a tunnel boring machine, including a transportation mechanism, a grasping mechanism, an assembling mechanism, a tightening mechanism, and a sealing mechanism;

[0007] The transportation mechanism is used to connect with the main beam of the tunnel boring machine, and the transportation mechanism moves relative to the main beam along the extension direction of the main beam to move multiple steel arches to the grasping mechanism;

[0008] The grasping mechanism is used to connect with the main beam, and the grasping mechanism moves relative to the main beam along the extension direction of the main beam to move multiple steel arches to the assembling mechanism one by one;

[0009] The assembling mechanism is used to connect with the shield of the tunnel boring machine, and the assembling mechanism is used to assemble multiple steel arches into a ring-shaped structure;

[0010] The tightening mechanism is used to connect with the main beam, the tightening mechanism moves relative to the extension direction of the main beam to abut against the inner wall of the ring-shaped structure, and the tightening mechanism moves radially relative to the main beam to abut the outer wall of the ring-shaped structure against the surrounding rock;

[0011] The sealing mechanism is used to connect with the main beam, and the sealing mechanism moves relative to the extension direction of the main beam to weld the ring-shaped structure.

[0012] In a possible implementation manner, for the steel arch support system provided by the present invention, the transportation mechanism includes a first moving trolley assembly, a first lifting assembly, and a feeding assembly. The first moving trolley assembly is used to rollingly connect with the main beam, and the first moving trolley assembly moves relative to the main beam along the extension direction of the main beam;

[0013] One end of the first lifting assembly facing away from the main beam is used to place a plurality of steel arch frames. The first lifting assembly is connected to the first moving trolley assembly, and the first lifting assembly moves relative to the first moving trolley assembly to approach the main beam, so as to move the plurality of steel arch frames onto the feeding assembly, or to move away from the main beam to move the plurality of steel arch frames from the feeding assembly onto the first lifting assembly.

[0014] The feeding assembly is connected to the first moving trolley assembly, and the feeding assembly moves relative to the first moving trolley assembly to approach or move away from the grasping mechanism.

[0015] In a possible implementation manner, for the steel arch frame support system provided by the present invention, the first lifting assembly includes a lifting frame and at least one first driving member. The lifting frame is slidably connected to the first moving trolley assembly, and the driving shaft of the first driving member is connected to the lifting frame. The first driving member drives the lifting frame to move to approach or move away from the main beam.

[0016] In a possible implementation manner, for the steel arch frame support system provided by the present invention, the feeding assembly includes a feeding frame and at least one second driving member. The feeding frame is slidably connected to the first moving trolley assembly, the feeding frame is located within the area surrounded by the lifting frame, and the driving shaft of the second driving member is connected to the feeding frame. The second driving member drives the feeding frame to move to approach or move away from the grasping mechanism.

[0017] In a possible implementation manner, for the steel arch frame support system provided by the present invention, the grasping mechanism includes a second lifting assembly and a second moving trolley assembly. The second moving trolley assembly is rollingly connected to the main beam, and the second moving trolley assembly moves relative to the main beam along the extending direction of the main beam.

[0018] The second lifting assembly includes a third driving member and a first support member. The housing of the third driving member is connected to the second moving trolley assembly, and the driving shaft of the third driving member is connected to the first support member. The third driving member drives the first support member to move relative to the second moving trolley assembly to approach or move away from the main beam.

[0019] In a possible implementation manner, for the steel arch frame support system provided by the present invention, it further includes a slag cleaning mechanism. The slag cleaning mechanism is used to be connected to the main beam of the tunnel boring machine. The slag cleaning mechanism is located on the side of the main beam facing away from the transportation mechanism, and the slag cleaning mechanism moves relative to the main beam along the extending direction of the main beam to remove the muck.

[0020] In a possible implementation manner, for the steel arch frame support system provided by the present invention, the slag cleaning mechanism includes a moving assembly and a grasping assembly. The moving assembly is connected to the main beam, and the moving assembly moves relative to the main beam along the extending direction of the main beam.

[0021] The grasping assembly includes at least two fourth driving members and two grasping members. One end of the two grasping members is hinged. One end of the fourth driving member is hinged to the moving assembly. The other end of at least one of the two fourth driving members is hinged to the other end of one grasping member, and the other one is hinged to the other end of the other grasping member. The fourth driving member is used to drive the grasping member to rotate so as to approach or move away from each other.

[0022] In a possible implementation manner, for the steel arch support system provided by the present invention, the moving assembly includes a walking bracket, a rack, a gear, and a fifth driving member. The rack is used to connect with the main beam, and the extending direction of the rack is the same as that of the main beam. The gear meshes with the rack. The driving shaft of the fifth driving member and the walking bracket are both connected to the gear, and the grasping assembly is connected to the walking bracket.

[0023] In a possible implementation manner, for the steel arch support system provided by the present invention, it further includes a lifting mechanism. The lifting mechanism is used to connect with the connecting bridge of the tunnel boring machine. The lifting mechanism moves relative to the connecting bridge to move a plurality of steel arches from the bottom of the connecting bridge to the top of the connecting bridge.

[0024] In a possible implementation manner, for the steel arch support system provided by the present invention, the assembling mechanism includes a rotating assembly, a docking assembly, and a plurality of claw assemblies. The rotating assembly is used to connect with the shield. The claw assembly and the docking assembly are both connected to the rotating assembly. The plurality of claw assemblies are arranged at intervals along the circumference of the rotating assembly. The rotating assembly is used to drive the claw assembly to rotate, and the docking assembly is used to connect two adjacent steel arches;

[0025] The claw assembly includes a second support member, a sixth driving member, and a pressing member. The second support member is connected to the rotating assembly. The second support member is used to support the steel arch. One end of the sixth driving member is connected to the second support member, and the other end is connected to the pressing member. The sixth driving member drives the pressing member to approach or move away from the second support member to clamp or loosen the steel arch.

[0026] The steel arch support system provided by the present invention is provided with a transportation mechanism, a grasping mechanism, an assembling mechanism, a tightening mechanism and a sealing mechanism. The transportation mechanism is used to connect with the main beam of the tunnel boring machine, and the transportation mechanism moves relative to the main beam along the extending direction of the main beam to move multiple steel arches to the grasping mechanism. The grasping mechanism is used to connect with the main beam, and the grasping mechanism moves relative to the main beam along the extending direction of the main beam to move multiple steel arches to the assembling mechanism one by one. The assembling mechanism is used to connect with the shield of the tunnel boring machine, and the assembling mechanism is used to assemble multiple steel arches into an annular structure. The tightening mechanism is used to connect with the main beam, and the tightening mechanism moves relative to the extending direction of the main beam to abut against the inner wall of the annular structure, and the tightening mechanism moves radially relative to the main beam to abut the outer wall of the annular structure against the surrounding rock. The sealing mechanism is used to connect with the main beam, and the sealing mechanism moves relative to the extending direction of the main beam to weld the annular structure. In this way, the whole process of steel arch transportation and assembly can be automated, improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0028] Figure 1 It is a schematic structural diagram of the steel arch support system provided by the embodiment of the present invention;

[0029] Figure 2 It is a schematic structural diagram of the annular structure provided by the embodiment of the present invention;

[0030] Figure 3 It is a schematic structural diagram of the steel arch in the annular structure provided by the embodiment of the present invention;

[0031] Figure 4 It is a schematic structural diagram of the slag cleaning mechanism in the steel arch support system provided by the embodiment of the present invention;

[0032] Figure 5 It is a schematic structural diagram of the transportation mechanism in the steel arch support system provided by the embodiment of the present invention;

[0033] Figure 6 It is a schematic structural diagram of the transportation mechanism in the steel arch support system provided by the embodiment of the present invention from another angle;

[0034] Figure 7 It is a front view of the grasping mechanism in the steel arch support system provided by the embodiment of the present invention;

[0035] Figure 8The left view of the grasping mechanism in the steel arch support system provided by the embodiment of the present invention;

[0036] Figure 9 The structural schematic diagram of the assembling mechanism in the steel arch support system provided by the embodiment of the present invention;

[0037] Figure 10 The cross-sectional view of the claw assembly in the steel arch support system provided by the embodiment of the present invention;

[0038] Figure 11 The structural schematic diagram of the rotating ring in the steel arch support system provided by the embodiment of the present invention;

[0039] Figure 12 The structural schematic diagram of the docking assembly in the steel arch support system provided by the embodiment of the present invention;

[0040] Figure 13 The structural schematic diagram of the docking assembly in the steel arch support system provided by the embodiment of the present invention from another angle;

[0041] Figure 14 The structural schematic diagram of the docking claw in the steel arch support system provided by the embodiment of the present invention;

[0042] Figure 15 The structural schematic diagram of the tightening mechanism in the steel arch support system provided by the embodiment of the present invention;

[0043] Figure 16 The structural schematic diagram of the sealing adjustment assembly in the steel arch support system provided by the embodiment of the present invention;

[0044] Figure 17 The structural schematic diagram of the gripper in the steel arch support system provided by the embodiment of the present invention;

[0045] Figure 18 The structural schematic diagram of the gripper in the steel arch support system provided by the embodiment of the present invention from another angle.

[0046] Explanation of reference numerals:

[0047] 100 - Transportation mechanism; 110 - First moving trolley assembly; 120 - First lifting assembly; 121 - Lifting frame; 1211 - First support part; 122 - First driving member; 130 - Feeding assembly; 131 - Feeding frame; 1311 - Second support part; 132 - Second driving member; 200 - Gripping mechanism; 210 - Second lifting assembly; 211 - Third driving member; 212 - First support member; 220 - Second moving trolley assembly; 300 - Assembly mechanism; 310 - Rotating assembly; 311 - Rotating ring; 312 - Fixed ring; 320 - Docking assembly; 321 - Cross beam; 322 - Sliding guide rail; 323 - Docking claw; 3231 - First clamping arm; 3232 - Second clamping arm; 3233 - First clamping driving source; 3234 - First clamping member; 3235 - Second clamping member; 3236 - Second clamping driving source; 324 - Docking driving source; 325 - Guide rail driving source; 330 - Claw assembly; 331 - Second support member; 332 - Sixth driving member; 333 - Pressing member; 334 - Pressing wheel; 400 - Tightening mechanism; 410 - Main frame; 411 - Ladder; 420 - Tightening arm; 500 - Sealing mechanism; 510 - Welding manipulator; 520 - Sealing adjustment assembly; 521 - Slide block; 522 - Rotator; 523 - Connecting seat; 524 - Telescopic rod; 525 - Gripper; 5251 - Guide rod; 5252 - Link; 5253 - Support seat; 5254 - Clamping oil cylinder; 5255 - Claw; 5256 - Connecting beam; 526 - First oil cylinder; 527 - Second oil cylinder; 528 - Third oil cylinder; 600 - Lifting mechanism; 700 - Slag cleaning mechanism; 710 - Moving assembly; 711 - Walking support; 712 - Rack; 713 - Fifth driving member; 720 - Gripping assembly; 721 - Fourth driving member; 722 - Gripping member; 800 - Cutter head; 900 - Shield; 1000 - Main beam; 1100 - Connecting bridge; 1200 - Steel arch; 1210 - Connecting ring; 1220 - Baffle; 1230 - Connecting tongue. Detailed implementation mode

[0048] In the description of the present invention, unless otherwise clearly defined and limited, the terms "installation", "connection", and "coupling" shall be understood in a broad sense. For example, it can be a fixed connection, or an indirect connection through an intermediate medium, and can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0049] In the description of the present invention, the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0050] The terms "first", "second", "third" (if any) in the specification, claims and above-mentioned drawings of the present invention are used to distinguish similar objects, and do not necessarily have to be used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein.

[0051] In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or maintenance tool that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or maintenance tools.

[0052] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts fall within the scope of protection of the present invention.

[0053] During the TBM construction process, when encountering poor surrounding rock conditions, it is necessary to use a support system to timely support the exposed surrounding rock. Traditional support methods all adopt manual auxiliary support, that is, the steel arch frames are assembled into a ring section by section, and then the formed-ring steel arch frames are supported on the surrounding rock to play a supporting role. The whole process requires personnel to assemble and connect each section of the steel arch frame, and the on-site manual operation time is long. Not only is the work efficiency low, but also untimely support is likely to cause personnel safety accidents.

[0054] To solve the above technical problems, the present invention provides a steel arch frame support system. By setting up a transportation mechanism, a grasping mechanism, an assembling mechanism, a tightening mechanism and a sealing mechanism, the whole process of steel arch frame transportation and assembly is realized with full automation, and the steel arch frame support system can be directly integrated into the whole TBM machine to realize the whole process of steel arch frame assembly, transportation and assembly with full automation.

[0055] Figure 1 Schematic diagram of the steel arch support system provided by the embodiment of the present invention Figure 2 Schematic diagram of the annular structure provided by the embodiment of the present invention Figure 3 Schematic diagram of the steel arch in the annular structure provided by the embodiment of the present invention

[0056] See Figures 1 to 3 As shown, the steel arch support system provided by the present invention is used for a tunnel boring machine and includes a transportation mechanism 100, a grasping mechanism 200, an assembling mechanism 300, a tightening mechanism 400, and a sealing mechanism 500

[0057] The transportation mechanism 100 is used to connect with the main beam 1000 of the tunnel boring machine. The transportation mechanism 100 moves relative to the main beam 1000 along the extension direction of the main beam 1000 to move a plurality of steel arches 1200 to the grasping mechanism 200. It should be noted that, see Figure 1 As shown, the extension direction of the main beam 1000 is Figure 1 the direction where the Y-axis is located in

[0058] See Figure 2 As shown, an annular structure can be composed of 5 steel arches 1200. Therefore, 5 steel arches 1200 can be loaded on the transportation mechanism 100 and moved towards the cutter head 800 of the tunnel boring machine, so as to approach the grasping mechanism 200. It should be noted that an annular structure can be composed of 4, 6, 8, etc. steel arches 1200, which will not be elaborated in this embodiment. For the convenience of description, the following will introduce the annular structure composed of 5 steel arches 1200

[0059] The grasping mechanism 200 is used to connect with the main beam 1000. The grasping mechanism 200 moves relative to the main beam 1000 along the extension direction of the main beam 1000 to move a plurality of steel arches 1200 to the assembling mechanism 300 one by one

[0060] The assembling mechanism 300 is used to connect with the shield 900 of the tunnel boring machine. The assembling mechanism 300 is used to assemble a plurality of steel arches 1200 into an annular structure

[0061] Among them, the grasping mechanism 200 grabs one steel arch 1200 each time and places the steel arch 1200 on the assembling mechanism 300. After the assembling mechanism 300 rotates 72°, the grasping mechanism 200 grabs another steel arch 1200 and places it on the assembling mechanism 300. The assembling mechanism 300 connects the two steel arches 1200 into one body, and then rotates 72°. The grasping mechanism 200 grabs another steel arch 1200 and places it on the assembling mechanism 300, and so on

[0062] See Figure 3As shown in the figure, a connecting ring 1210 is provided at one end of the steel arch frame 1200, and a baffle 1220 and a connecting tongue 1230 are provided at the other end. Among them, the connecting tongue 1230 is located inside the baffle 1220, and the connecting tongue 1230 is elastically connected to the steel arch frame 1200. The connecting tongue 1230 can move towards the inside of the steel arch frame 1200 under the action of an external force, and can also move outwards under the action of elasticity.

[0063] When two adjacent steel arch frames 1200 are connected, the connecting ring 1210 is inserted into the inner groove of the baffle 1220, and the connecting tongue 1230 is inserted into the inner groove of the baffle 1220, so that two adjacent steel arch frames 1200 are firmly connected.

[0064] The tightening mechanism 400 is used to connect with the main beam 1000. The tightening mechanism 400 moves relative to the extending direction of the main beam 1000 to abut against the inner wall of the annular structure, and the tightening mechanism 400 moves radially relative to the main beam 1000 to abut the outer wall of the annular structure against the surrounding rock.

[0065] It should be noted that, as shown in Figure 2 the figure, the length of one of the steel arch frames 1200 can be adjusted. The steel arch frame 1200 includes a first connecting section, a second connecting section and a third connecting section. One end of the second connecting section is inserted into the first connecting section, and the other end of the second connecting section is inserted into the third connecting section. By simultaneously pulling both ends of the steel arch frame 1200, the length of the steel arch frame 1200 can be changed.

[0066] The sealing mechanism 500 is connected to the main beam 1000. The sealing mechanism 500 moves relative to the extending direction of the main beam 1000 to weld the annular structure.

[0067] Specifically, the steel arch frame 1200 with adjustable length is welded and fixed, so as to form a firm and reliable annular structure.

[0068] The steel arch support system provided in this embodiment is provided with a transportation mechanism 100, a grasping mechanism 200, an assembling mechanism 300, a tightening mechanism 400 and a sealing mechanism 500. The transportation mechanism 100 is used to connect with the main beam 1000 of the tunnel boring machine. The transportation mechanism 100 moves relative to the main beam 1000 along the extending direction of the main beam 1000 to move a plurality of steel arches 1200 to the grasping mechanism 200. The grasping mechanism 200 is used to connect with the main beam 1000. The grasping mechanism 200 moves relative to the main beam 1000 along the extending direction of the main beam 1000 to move the plurality of steel arches 1200 to the assembling mechanism 300 one by one. The assembling mechanism 300 is used to connect with the shield 900 of the tunnel boring machine. The assembling mechanism 300 is used to assemble the plurality of steel arches 1200 into an annular structure. The tightening mechanism 400 is used to connect with the main beam 1000. The tightening mechanism 400 moves relative to the extending direction of the main beam 1000 to abut against the inner wall of the annular structure. The tightening mechanism 400 moves radially relative to the main beam 1000 to abut the outer wall of the annular structure against the surrounding rock. The sealing mechanism 500 is connected to the main beam 1000. The sealing mechanism 500 moves relative to the extending direction of the main beam 1000 to weld the annular structure. In this way, the whole process of transporting and assembling the steel arch 1200 can be automated, improving the work efficiency.

[0069] In some embodiments, the steel arch 1200 is transported into the tunnel by a transportation vehicle, and the transportation mechanism 100 and the grasping mechanism 200 are located at the top of the main beam 1000. In order to transport the steel arch 1200 onto the transportation mechanism 100, the steel arch support system further includes a lifting mechanism 600. The lifting mechanism 600 is used to connect with the connecting bridge 1100 of the tunnel boring machine. The lifting mechanism 600 moves relative to the connecting bridge 1100 to move a plurality of steel arches 1200 from the bottom of the connecting bridge 1100 to the top of the connecting bridge 1100. In this way, the transportation efficiency of the steel arch 1200 is relatively high.

[0070] Among them, the top is Figure 1 the positive direction shown by the X-axis in the figure, and the negative direction shown by the X-axis is the bottom.

[0071] It should be noted that the specific structure of the lifting mechanism 600 is not limited in this embodiment, and it can be a common lifting mechanism 600 in the related art. For example, it can be a wire hoisting structure.

[0072] In this embodiment, in order to automatically clean the muck that has fallen to the bottom, the steel arch support system further includes a muck cleaning mechanism 700. The muck cleaning mechanism 700 is used to connect with the main beam 1000 of the tunnel boring machine. The muck cleaning mechanism 700 is located on the side of the main beam 1000 away from the transportation mechanism 100. The muck cleaning mechanism 700 moves relative to the main beam 1000 along the extending direction of the main beam 1000 to clean the muck.

[0073] It can be understood that by setting up the slag cleaning mechanism 700, the slag is removed before the exposed surrounding rock is supported, thus effectively avoiding damage to the steel arch 1200 caused by the slag, and improving the reliability of the support.

[0074] The specific structure of the slag cleaning mechanism 700 will be introduced below.

[0075] Figure 4 It is a schematic structural diagram of the slag cleaning mechanism in the steel arch support system provided by the embodiment of the present invention.

[0076] See Figure 4 As shown, the slag cleaning mechanism 700 includes a moving component 710 and a grasping component 720. The moving component 710 is connected to the main beam 1000, and the moving component 710 moves relative to the main beam 1000 along the extending direction of the main beam 1000.

[0077] The grasping component 720 includes at least two fourth driving members 721 and two grasping members 722. One ends of the two grasping members 722 are hinged. One end of the fourth driving member 721 is hinged to the moving component 710. The other end of one of the at least two fourth driving members 721 is hinged to the other end of one grasping member 722, and the other one is hinged to the other end of the other grasping member 722. The fourth driving member 721 is used to drive the grasping member 722 to rotate so as to approach or separate from each other.

[0078] Specifically, the number of the fourth driving members 721 can be four, and the four fourth driving members 721 are symmetrically arranged, and two of the fourth driving members 721 are used to drive one grasping member 722. Wherein, the fourth driving member 721 can be a cylinder, an oil cylinder or an electric push rod, and this embodiment does not make a specific limitation here.

[0079] During operation, the piston rod of the fourth driving member 721 extends, and the two grasping members 722 rotate and separate from each other, thus opening the grasping members 722 to grasp the slag. After grasping, the piston rod of the fourth driving member 721 retracts, and the two grasping members 722 rotate and approach each other, thus closing the grasping members 722 to facilitate the subsequent removal of the slag.

[0080] In a possible implementation manner, the moving component 710 includes a walking bracket 711, a rack 712, a gear (not shown in the figure) and a fifth driving member 713. The rack 712 is used to be connected to the main beam 1000. The extending direction of the rack 712 is consistent with the extending direction of the main beam 1000. The gear meshes with the rack 712. The driving shaft of the fifth driving member 713 and the walking bracket 711 are both connected to the gear. The grasping component 720 is connected to the walking bracket 711.

[0081] Specifically, the fifth driving member 713 can be a motor.

[0082] To improve the stability of the movement of the slag cleaning mechanism 700, guide rails can be provided on the main beam 1000, and the walking bracket 711 is slidably connected to the guide rails.

[0083] The specific structure of the transportation mechanism 100 will be introduced below.

[0084] Figure 5 FIG. is a schematic structural view of the transportation mechanism in the steel arch support system provided by the embodiment of the present invention. Figure 6 FIG. is a schematic structural view of another angle of the transportation mechanism in the steel arch support system provided by the embodiment of the present invention.

[0085] See Figure 5 and Figure 6 As shown in and, the transportation mechanism 100 includes a first moving trolley assembly 110, a first lifting assembly 120, and a feeding assembly 130. The first moving trolley assembly 110 is used for rolling connection with the main beam 1000, and the first moving trolley assembly 110 moves relative to the main beam 1000 along the extending direction of the main beam 1000.

[0086] One end of the first lifting assembly 120 facing away from the main beam 1000 is used for placing a plurality of steel arch frames 1200. The first lifting assembly 120 is connected to the first moving trolley assembly 110, and the first lifting assembly 120 moves relative to the first moving trolley assembly 110 to approach the main beam 1000, moving a plurality of steel arch frames 1200 onto the feeding assembly 130, or moving away from the main beam 1000 to move a plurality of steel arch frames 1200 from the feeding assembly 130 onto the first lifting assembly 120.

[0087] The feeding assembly 130 is connected to the first moving trolley assembly 110, and the feeding assembly 130 moves relative to the first moving trolley assembly 110 to approach or move away from the grasping mechanism 200.

[0088] Exemplarily, to improve work efficiency, 5 steel arch frames 1200 are placed at intervals on the first moving trolley assembly 110, and the steel arch frames 1200 are arc-shaped. Therefore, when the heights of the first lifting assembly 120 and the feeding assembly 130 in the X-axis direction in are different, the transfer of the steel arch frames 1200 between the first lifting assembly 120 and the feeding assembly 130 can be realized. In this way, the position of the steel arch frames 1200 can be adjusted, so as to facilitate the grasping mechanism 200 to take away one steel arch frame 1200 closest to the grasping mechanism 200. Figure 1

[0089] ​Specifically, the first lifting assembly 120 moves relative to the first moving trolley assembly 110, driving five steel arch frames 1200 to approach the main beam 1000 simultaneously until the five steel arch frames 1200 abut against the feeding assembly 130. The first lifting assembly 120 continues to approach the main beam 1000 until it disengages from the five steel arch frames 1200, thereby moving the five steel arch frames 1200 onto the feeding assembly 130. The feeding assembly 130 moves relative to the first moving trolley assembly 110, and the feeding assembly 130 extends to approach the grasping mechanism 200. The grasping mechanism 200 picks up the first steel arch frame 1200 that approaches the grasping mechanism 200. The first lifting assembly 120 moves relative to the first moving trolley assembly 110, away from the main beam 1000 until it abuts against four steel arch frames 1200, driving the four steel arch frames 1200 to move away from the main beam 1000 simultaneously, causing the four steel arch frames 1200 to disengage from the feeding assembly 130, thereby moving the four steel arch frames 1200 onto the first lifting assembly 120. The feeding assembly 130 moves away from the grasping mechanism 200 and returns to its original position. Then, the first lifting assembly 120 moves relative to the first moving trolley assembly 110, driving the four steel arch frames 1200 to approach the main beam 1000 simultaneously, and so on. In this way, the replenishment of the steel arch frames 1200 can be achieved, making the distance that the feeding assembly 130 moves towards the grasping mechanism 200 consistent and the moving distance relatively small, effectively avoiding interference between the feeding assembly 130 and the grasping mechanism 200.

[0090] In some embodiments, the first lifting assembly 120 includes a lifting frame 121 and at least one first driving member 122. The lifting frame 121 is slidably connected to the first moving trolley assembly 110. The driving shaft of the first driving member 122 is connected to the lifting frame 121, and the first driving member 122 drives the lifting frame 121 to move closer to or away from the main beam 1000.

[0091] Specifically, to improve the driving ability, the number of the first driving members 122 can be two. Among them, the first driving member 122 can be a cylinder, an oil cylinder or an electric push rod.

[0092] Among them, a plurality of first support portions 1211 are provided on the lifting frame 121, and the plurality of first support portions 1211 are spaced along Figure 1 the Y-axis direction, and the first support portions 1211 correspond to the steel arch frames 1200 one by one.

[0093] In this embodiment, the feeding assembly 130 includes a feeding frame 131 and at least one second driving member 132. The feeding frame 131 is slidably connected to the first moving trolley assembly 110. The feeding frame 131 is located within the area surrounded by the lifting frame 121. The driving shaft of the second driving member 132 is connected to the feeding frame 131, and the second driving member 132 drives the feeding frame 131 to move closer to or away from the grasping mechanism 200.

[0094] Specifically, in order to improve the driving ability, the number of the second driving members 132 can be two. Among them, the second driving member 132 can be a cylinder, an oil cylinder or an electric push rod.

[0095] Among them, a plurality of second supporting portions 1311 are provided on the feeding frame 131, and the plurality of second supporting portions 1311 are arranged at intervals along Figure 1 the Y-axis direction therein, and the second supporting portions 1311 correspond to the steel arch frames 1200 one by one. The distance between two adjacent second supporting portions 1311 is equal to the distance between two adjacent first supporting portions 1211.

[0096] In some embodiments, a guide rail is provided on the main beam 1000, the guide rail is consistent with the extending direction of the main beam 1000, and the first moving trolley assembly 110 is in rolling connection with the guide rail.

[0097] Next, the specific structure of the grasping mechanism 200 will be introduced.

[0098] Figure 7 It is the front view of the grasping mechanism in the steel arch frame support system provided by the embodiment of the present invention, Figure 8 It is the left view of the grasping mechanism in the steel arch frame support system provided by the embodiment of the present invention.

[0099] See Figure 7 and Figure 8 As shown in, the grasping mechanism 200 includes a second lifting assembly 210 and a second moving trolley assembly 220. The second moving trolley assembly 220 is in rolling connection with the main beam 1000, and the second moving trolley assembly 220 moves relative to the main beam 1000 along the extending direction of the main beam 1000.

[0100] Among them, the second lifting assembly 210 includes a third driving member 211 and a first supporting member 212. The housing of the third driving member 211 is connected to the second moving trolley assembly 220, the driving shaft of the third driving member 211 is connected to the first supporting member 212, and the third driving member 211 drives the first supporting member 212 to move relative to the second moving trolley assembly 220 to approach or move away from the main beam 1000.

[0101] During use, the second moving trolley assembly 220 moves, so that the first supporting member 212 moves to the bottom of the steel arch frame 1200. The third driving member 211 drives the first supporting member 212 to move, so as to move away from the main beam 1000 until the first supporting member 212 abuts against the steel arch frame 1200. The first supporting member 212 continues to move away from the main beam 1000, so that the steel arch frame 1200 is disengaged from the feeding frame 131. In this way, the structure of the grasping mechanism 200 is relatively simple and is not likely to interfere with the transportation mechanism 100 and the assembling mechanism 300.

[0102] In some embodiments, a guide rail is provided on the main beam 1000. The guide rail is consistent with the extending direction of the main beam 1000, and the second moving trolley assembly 220 is in rolling connection with the guide rail. Moreover, the second moving trolley assembly 220 and the first moving trolley assembly 110 can be arranged on the same guide rail.

[0103] The specific structure of the assembling mechanism 300 will be introduced below.

[0104] Figure 9 It is a schematic structural view of the assembling mechanism in the steel arch support system provided by the embodiment of the present invention. Figure 10 It is a cross-sectional view of the claw assembly in the steel arch support system provided by the embodiment of the present invention. Figure 11 It is a schematic structural view of the rotating ring in the steel arch support system provided by the embodiment of the present invention. Figure 12 It is a schematic structural view of the docking assembly in the steel arch support system provided by the embodiment of the present invention. Figure 13 It is a schematic structural view of the docking assembly from another angle in the steel arch support system provided by the embodiment of the present invention. Figure 14 It is a schematic structural view of the docking claw in the steel arch support system provided by the embodiment of the present invention.

[0105] See Figures 9 to 13 As shown, the assembling mechanism 300 includes a rotating assembly 310, a docking assembly 320, and a plurality of claw assemblies 330. The rotating assembly 310 is used to connect with the shield 900. Both the claw assembly 330 and the docking assembly 320 are connected to the rotating assembly 310. The plurality of claw assemblies 330 are arranged at intervals along the circumferential direction of the rotating assembly 310. The rotating assembly 310 is used to drive the claw assembly 330 to rotate. The docking assembly 320 is used to connect two adjacent steel arches 1200.

[0106] See Figure 10 As shown, the claw assembly 330 includes a second support member 331, a sixth driving member 332, and a pressing member 333. The second support member 331 is connected to the rotating ring 311 in the rotating assembly 310. The second support member 331 is used to support the steel arch 1200. One end of the sixth driving member 332 is connected to the second support member 331, and the other end is connected to the pressing member 333. The sixth driving member 332 drives the pressing member 333 to approach or move away from the second support member 331 to clamp or loosen the steel arch 1200.

[0107] In some embodiments, in order to reduce the collision with the supported steel arch 1200, a pressing wheel 334 is provided on the pressing member 333. The pressing wheel 334 is used to abut against the steel arch 1200.

[0108] See Figure 9 and Figure 11As shown, the rotating assembly 310 includes a rotating ring 311 and a fixed ring 312. Among them, the fixed ring 312 is located within the area enclosed by the rotating ring 311. The fixed ring 312 is connected to the shield 900. The rotating ring 311 is in rolling connection with the fixed ring 312, and the rotating ring 311 can rotate relative to the fixed ring 312.

[0109] Among them, the inner wall of the rotating ring 311 is provided with transmission teeth. A motor and a transmission gear can be provided to drive the rotation of the rotating ring 311. The transmission gear is connected to the driving shaft of the motor and is also connected to the rotating ring 311.

[0110] See Figures 12 to 14 As shown, the docking assembly 320 includes a cross beam 321, two sliding guide rails 322, two docking claws 323, two docking driving sources 324, and a guide rail driving source 325. The cross beam 321 is connected to the fixed ring 312. One end of the sliding guide rail 322 is rotatably connected to the cross beam 321, and the other end of the sliding guide rail 322 is hinged to the output end of the guide rail driving source 325. The guide rail driving source 325 is used to drive the sliding guide rail 322 to rotate relative to the cross beam 321. When the guide rail driving source 325 drives the sliding guide rail 322 to rotate, the spatial position of the docking claw 323 will change under the drive of the sliding guide rail 322.

[0111] The docking claw 323 is used to grasp the steel arch 1200. The docking claw 323 is slidably connected to the sliding guide rail 322. One of the housing and the output shaft of the docking driving source 324 is connected to the docking claw 323, and the other is connected to the sliding guide rail 322. The docking driving source 324 drives the docking claw 323 to move relative to the sliding guide rail 322 along the extending direction of the sliding guide rail 322.

[0112] The docking claw 323 includes a first clamping arm 3231 slidably connected to the sliding guide rail 322, a second clamping arm 3232 hinged to the first clamping arm 3231, a first clamping driving source 3233 connected to the first clamping arm 3231, a first clamping member 3234 slidably connected to the first clamping arm 3231, and the first clamping member 3234 is slidably connected to the second clamping arm 3232, a second clamping member 3235 slidably connected to the second clamping arm 3232, and a second clamping driving source 3236 connected to the second clamping arm 3232. The first clamping driving source 3233 drives the first clamping member 3234 to move along the extending direction of the first clamping arm 3231, and drives the second clamping arm 3232 to rotate relative to the first clamping arm 3231 through the first clamping member 3234. The second clamping driving source 3236 drives the second clamping member 3235 to move along the extending direction of the second clamping arm 3232. By adjusting the relative positions of the first clamping member 3234 and the second clamping member 3235, the clamping and loosening of the steel arch 1200 are realized, and the docking of the steel arch 1200 is completed.

[0113] The specific structure of the tightening mechanism 400 will be introduced below.

[0114] Figure 15 It is a schematic structural diagram of the tightening mechanism in the steel arch support system provided by the embodiment of the present invention.

[0115] Refer to Figure 15 As shown, the tightening mechanism 400 includes a main frame 410 and a plurality of tightening arms 420. The main frame 410 is sleeved on the main beam 1000, and the main frame 410 is slidably connected to the main beam 1000. The main frame 410 can move relative to the main beam 1000 along the extension direction of the main beam 1000. The plurality of tightening arms 420 are evenly distributed at intervals along the axial direction of the main frame 410. One end of the tightening arm 420 is connected to the main frame 410, and the other end is used to abut against the inner wall of the annular structure. In this way, when the tightening arm 420 extends, the diameter of the annular structure increases until the outer wall of the annular structure abuts against the surrounding rock.

[0116] During use, the tightening mechanism 400 moves towards the assembling mechanism 300 so that the tightening arms 420 abut against the inner wall of the annular structure. The tightening mechanism 400 drives the annular structure to move away from the assembling mechanism 300 to the support position, and the tightening arms 420 extend to abut the outer wall of the annular structure against the surrounding rock.

[0117] In some embodiments, a guide rail is provided on the main beam 1000. The guide rail is consistent with the extension direction of the main beam 1000, and the main frame 410 is connected to the guide rail.

[0118] In this embodiment, in order to facilitate personnel maintenance or facilitate adjustment in case of jamming of the main frame 410, a ladder 411 is provided on the main frame 410, wherein the ladder 411 is connected to the main frame 410.

[0119] The specific structure of the sealing mechanism 500 will be introduced below.

[0120] Figure 16 It is a schematic structural diagram of the sealing adjustment component in the steel arch support system provided by the embodiment of the present invention, Figure 17 It is a schematic structural diagram of the gripper in the steel arch support system provided by the embodiment of the present invention, Figure 18 It is a schematic structural diagram of the gripper from another angle in the steel arch support system provided by the embodiment of the present invention.

[0121] Refer to Figure 1 、 Figures 16 to 18 As shown, the sealing mechanism 500 includes a welding manipulator 510 and a sealing adjustment component 520. The welding manipulator 510 is located on one side of the sealing adjustment component 520 along the extension direction of the main beam 1000. Both the welding manipulator 510 and the sealing adjustment component 520 are slidably connected to the main beam 1000, and the welding manipulator 510 and the sealing adjustment component 520 can be arranged on the same guide rail of the main beam 1000.

[0122] See also Figure 2 As shown, the length of one of the steel arches 1200 can be adjusted. The steel arch 1200 includes a first connection segment, a second connection segment, and a third connection segment. One end of the second connection segment is inserted in the first connection segment, and the other end of the second connection segment is inserted in the third connection segment. The length of the steel arch 1200 can be changed by pulling both ends of the steel arch 1200 at the same time. The welding manipulator 510 is used to weld and fix the first connection segment and the second connection segment, and the second connection segment and the third connection segment. The sealing adjustment component 520 is used to adjust the welding manipulator 510 after completing the first welding (for example, the first connection segment and the second connection segment), and then complete the second welding (for example, the third connection segment and the second connection segment).

[0123] The sealing adjustment assembly 520 includes a slider 521 , a rotator 522 , a connecting seat 523 , two telescopic rods 524 , two grippers 525 , two first oil cylinders 526 , two second oil cylinders 527 and two third oil cylinders 528 .

[0124] The slider 521 is slidably connected to the main beam 1000, the rotator 522 is connected to the slider 521, the connecting seat 523 is connected to one end of the rotator 522 away from the slider 521, one end of the telescopic rod 524 is hinged to the connecting seat 523, and the other end is hinged to the gripper 525. One end of the first oil cylinder 526 is hinged to the fixed end of the telescopic rod 524, and the other end is hinged to the movable end of the telescopic rod 524. One end of the second oil cylinder 527 is hinged to the connecting seat 523, and the other end is hinged to the fixed end of the telescopic rod 524. One end of the third oil cylinder 528 is hinged to the movable end of the telescopic rod 524, and the other end is hinged to the gripper 525.

[0125] The gripper 525 includes a guide rod 5251, a connecting rod 5252, a support seat 5253, a clamping cylinder 5254 and a claw 5255. The support seat 5253 is arranged on both sides of the connecting beam 5256. The guide rod 5251 is movably arranged on the support seat 5253. The linear movement of the guide rod 5251 is ensured by the cooperation of the limiting rod structure on the guide rod 5251 and the limiting hole structure on the support seat 5253. The claw 5255 is hinged on the support seat 5253. The connecting rod 5252 is respectively hinged to the guide rod 5251 and the claw 5255 to form a structure of an offset curved edge slider. The clamping cylinder 5254 is respectively hinged to the guide rod clamping joint 646 and the support seat clamping joint 647. Driving the clamping cylinder 5254 can realize the opening and closing of the claw 5255.

[0126] It should be noted that when the assembled steel arch frames 1200 are not in the same plane, the steel arch frames 1200 can be adjusted by rotating the rotator 522 .

[0127] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A steel arch support system for a tunnel boring machine, characterized in that, The steel arch support system includes a transportation mechanism, a grasping mechanism, an assembling mechanism, a tightening mechanism and a sealing mechanism; The transportation mechanism is used to connect with the main beam of the tunnel boring machine, and the transportation mechanism moves relative to the main beam along the extension direction of the main beam to move a plurality of the steel arches to the grasping mechanism; The grasping mechanism is used to connect with the main beam, and the grasping mechanism moves relative to the main beam along the extension direction of the main beam to move a plurality of the steel arches to the assembling mechanism one by one; The assembling mechanism is used to connect with the shield of the tunnel boring machine, and the assembling mechanism is used to assemble a plurality of the steel arches into an annular structure; The tightening mechanism is used to connect with the main beam, and the tightening mechanism moves relative to the extension direction of the main beam to abut against the inner wall of the annular structure, and the tightening mechanism moves radially relative to the main beam to abut the outer wall of the annular structure against the surrounding rock; The sealing mechanism is used to connect with the main beam, and the sealing mechanism moves relative to the extension direction of the main beam to weld the annular structure; The transportation mechanism includes a first moving trolley assembly, a first lifting assembly and a feeding assembly. The first moving trolley assembly is used to be connected with the main beam in a rolling manner, and the first moving trolley assembly moves relative to the main beam along the extension direction of the main beam; One end of the first lifting assembly facing away from the main beam is used to place a plurality of the steel arches, and the first lifting assembly is connected with the first moving trolley assembly; The feeding assembly is connected with the first moving trolley assembly; The first lifting assembly moves relative to the first moving trolley assembly to drive a plurality of the steel arches to approach the main beam simultaneously until the plurality of the steel arches abut against the feeding assembly; the first lifting assembly continues to approach the main beam until it disengages from the plurality of the steel arches, so as to move the plurality of the steel arches onto the feeding assembly; the feeding assembly moves relative to the first moving trolley assembly, and the feeding assembly extends out to approach the grasping mechanism, and the grasping mechanism takes away one of the steel arches close to the grasping mechanism; the first lifting assembly moves relative to the first moving trolley assembly away from the main beam until it abuts against the remaining steel arches, driving the remaining steel arches to move away from the main beam simultaneously, so that the remaining steel arches are disengaged from the feeding assembly, so as to move the remaining steel arches onto the first lifting assembly; the feeding assembly moves away from the grasping mechanism and returns to its original position; then, the first lifting assembly moves relative to the first moving trolley assembly, driving the remaining steel arches to approach the main beam simultaneously, realizing the replenishment position of the steel arches.

2. The steel arch support system according to claim 1, characterized in that, The first lifting assembly includes a lifting frame and at least one first driving member. The lifting frame is slidably connected with the first moving trolley assembly, and the driving shaft of the first driving member is connected with the lifting frame. The first driving member drives the lifting frame to move to approach or move away from the main beam.

3. The steel arch support system according to claim 2, characterized in that, The feeding assembly includes a feeding frame and at least one second driving member. The feeding frame is slidably connected to the first moving trolley assembly. The feeding frame is located in the area surrounded by the lifting frame. The driving shaft of the second driving member is connected to the feeding frame. The second driving member drives the feeding frame to move closer to or away from the grabbing mechanism.

4. The steel arch support system according to any one of claims 1 to 3, characterized in that, The grabbing mechanism comprises a second lifting assembly and a second moving trolley assembly, the second moving trolley assembly is rollingly connected to the main beam, and the second moving trolley assembly moves relative to the main beam along the extension direction of the main beam; The second lifting assembly includes a third driving member and a first supporting member. The shell of the third driving member is connected to the second moving trolley assembly. The driving shaft of the third driving member is connected to the first supporting member. The third driving member drives the first supporting member to move relative to the second moving trolley assembly to approach or move away from the main beam.

5. The steel arch support system according to any one of claims 1 to 3, characterized in that It also includes a slag cleaning mechanism, which is used to be connected to the main beam of the tunnel boring machine. The slag cleaning mechanism is located on the side of the main beam away from the transportation mechanism. The slag cleaning mechanism moves relative to the main beam along the extension direction of the main beam to remove debris.

6. The steel arch support system according to claim 5, characterized in that, The slag cleaning mechanism comprises a moving component and a grabbing component, wherein the moving component is connected to the main beam, and the moving component moves relative to the main beam along the extension direction of the main beam; The grabbing assembly includes at least two fourth driving members and two grabbing members, one end of the two grabbing members is hinged, one end of the fourth driving member is hinged to the moving assembly, the other end of at least one of the two fourth driving members is hinged to the other end of one of the grabbing members, and the other is hinged to the other end of another of the grabbing members, and the fourth driving member is used to drive the grabbing members to rotate so as to move closer to or away from each other.

7. The steel arch support system according to claim 6, characterized in that, The moving assembly includes a traveling bracket, a rack, a gear and a fifth driving member. The rack is used to be connected to the main beam. The extension direction of the rack is consistent with the extension direction of the main beam. The gear and the rack are meshed with each other. The driving shaft of the fifth driving member and the traveling bracket are both connected to the gear. The grabbing assembly is connected to the traveling bracket.

8. The steel arch support system according to any one of claims 1 to 3, characterized in that, It also includes a lifting mechanism, which is used to connect with the connecting bridge of the tunnel boring machine. The lifting mechanism moves relative to the connecting bridge to move a plurality of steel arches from the bottom of the connecting bridge to the top of the connecting bridge.

9. The steel arch support system according to any one of claims 1 to 3, characterized in that, The assembly mechanism includes a rotating assembly, a docking assembly and a plurality of claw assemblies, the rotating assembly is used to connect with the shield, the claw assembly and the docking assembly are both connected with the rotating assembly, a plurality of claw assemblies are arranged at intervals along the circumference of the rotating assembly, the rotating assembly is used to drive the claw assembly to rotate, and the docking assembly is used to connect two adjacent steel arch frames; The jaw assembly includes a second support member, a sixth driving member, and a pressing member. The second support member is connected to the rotating assembly and is used to support the steel arch. One end of the sixth driving member is connected to the second support member, and the other end is connected to the pressing member. The sixth driving member drives the pressing member to approach or move away from the second support member to clamp or release the steel arch.

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