Lateral supporting device and tunneling equipment

Abstract

The utility model discloses a lateral supporting device and tunneling equipment, the lateral supporting device comprises a first base, a second base and an adjusting assembly, and the lateral supporting device can compensate the distance between a supporting shoe and the side wall of a chamber. The second base abuts against the side wall of the chamber, the first base is connected with the supporting shoe, the adjusting assembly is used for adjusting the distance between the first base and the second base, and therefore the overall thickness of the device is adjusted. The device is used for assisting the supporting shoe in laterally supporting the side wall of the chamber, the problem that the lateral movement stroke of the supporting shoe is insufficient is solved, a driving assembly of the supporting shoe of the heading machine does not need to be improved, and the equipment cost is lower.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of heading machines, in particular to a lateral support device and a heading device. BACKGROUND

[0002] A tunnel boring machine (TBM) is mainly used in tunnel engineering. Before construction, a mechanical excavation or a drill-and-blast method is generally used at the tunnel entrance to excavate a storage chamber, install a chamber, and start a chamber. After the TBM is assembled in the installation chamber, it steps into the starting chamber. After the TBM cutter head posture is adjusted, the heading is started. In order to assemble the TBM, a sufficient assembly space is reserved between the installation chamber and the TBM, and the inner diameter of the starting chamber is much smaller than that of the installation chamber. The inner diameter of the starting chamber is slightly larger than the diameter of the TBM cutter head. During the heading process, the support shoe on the side of the TBM is directly in contact with the side wall of the starting chamber to provide a stepping heading force point.

[0003] In order to reduce the construction amount, the present application proposes a new construction process, which directly starts in the assembly chamber, that is, directly excavates after the heading machine is installed in the assembly chamber. However, after the chamber space is enlarged, the lateral movement range of the support shoe is limited, and the inner wall of the chamber cannot be reached. At present, a larger stroke driving assembly is used to drive the lateral movement of the support shoe to improve the stroke of the lateral movement of the support shoe, but the equipment cost is further increased. CONTENT OF THE UTILITY MODEL

[0004] The present application proposes a lateral support device and a heading device, which aims to solve the problem that the driving stroke is not enough when the support shoe moves laterally towards the inner wall of the chamber.

[0005] The present application proposes a lateral support device for TBM support shoe posture position adjustment, comprising:

[0006] a first base;

[0007] a second base, which is arranged at intervals with the first base;

[0008] an adjusting assembly connected to the first base and the second base, used to adjust the distance between the first base and the second base.

[0009] In some embodiments, the lateral support device further comprises a telescopic box body arranged between the first base and the second base, and the telescopic box body comprises:

[0010] a first box part arranged on the first base;

[0011] a second box part arranged on the second base, the first box part and the second box part are nested and can slide relative to each other along the arrangement direction of the first base and the second base.

[0012] In some embodiments, the lateral support device further comprises a guide assembly arranged at the lower end of the first base and the second base.

[0013] In some embodiments, the lateral support device further comprises:

[0014] a driving cylinder connected to the first base at one end, the driving direction of the driving cylinder being perpendicular to the arrangement direction of the first base and the second base;

[0015] a rail clamping device connected to the other end of the driving cylinder away from the first base.

[0016] In some embodiments, the guide assembly comprises a guide arranged at the lower end of the first base, and a roller rotatably arranged at the lower end of the second base.

[0017] In some embodiments, the side of the first base away from the second base is an abutting surface, the abutting surface is arranged as a concave surface, and the abutting surface is further provided with a plurality of protrusions.

[0018] In some embodiments, the first base is internally structured with a first accommodating cavity in communication with the telescopic box, the first base is provided with a feeding hole in communication with the first accommodating cavity, and the side of the first base is provided with a valve in communication with the first accommodating cavity, the valve being arranged close to the lower end of the first base.

[0019] In some embodiments, the adjusting assembly is arranged between the first base and the second base, comprising a screw rod arranged on the second base, and a sleeve rotatably arranged on the first base, the sleeve being provided with an internal thread for cooperating with the screw rod.

[0020] In some embodiments, the lateral support device comprises a plurality of sets of the adjusting assembly, the adjusting assemblies being arranged around the telescopic box.

[0021] The present application also proposes a tunneling equipment comprising the above lateral support device.

[0022] The lateral support device and the tunneling equipment in the present application comprise a first base, a second base and an adjusting assembly, the lateral support device can compensate the distance between the support shoe and the sidewall of the chamber. The second base is in abutment with the sidewall of the chamber, the first base is connected with the support shoe, and the adjusting assembly is used to adjust the distance between the first base and the second base, so as to adjust the overall thickness of the device. The device is used to assist the lateral support of the sidewall of the chamber by the support shoe, and solves the problem of insufficient lateral movement stroke of the support shoe. The driving assembly of the support shoe of the tunneling machine does not need to be improved, and the cost of the equipment is lower. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 Fig. 1 is a structural schematic view of a lateral support device according to an embodiment of the present application;

[0024] Figure 2 Fig. 2 is a sectional view of the lateral support device according to an embodiment of the present application; Figure 1

[0025] Figure 3 Fig. 3 is a structural schematic view of a lateral support device according to another embodiment of the present application;

[0026] Figure 4 Fig. 4 is a structural schematic view of a tunneling device according to an embodiment of the present application;

[0027] Figure 5 Fig. 5 is a structural schematic view of a tunneling device according to an embodiment of the present application.

[0028] The purposes, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0029] The schemes in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0030] It should be noted that all the directional indications such as up, down, left, right, front, back, etc. in the embodiments of the present application are only used to explain the relative position relationship, movement condition, etc. between the components in a certain specific posture such as shown in the drawings. If the specific posture changes, the directional indications also change accordingly.

[0031] It should also be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there can be a middle element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there can be a middle element.

[0032] In addition, the description involving "first", "second", etc. in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of the various embodiments can be combined with each other, but it must be based on the fact that the technical solutions can be realized by those skilled in the art. When the combination of technical solutions appears to be contradictory or unachievable, it should be considered that the combination of technical solutions does not exist and is not within the scope of protection claimed by the present application.​

[0033] The application provides a lateral support device, referring to Figures 1 to 5 The lateral support device comprises a first base 11, a second base 12 which is arranged in a spaced manner with the first base 11, and an adjusting assembly 20 which is connected between the first base 11 and the second base 12 and is used for adjusting the distance between the first base 11 and the second base 12. The lateral support device and the tunneling equipment provided by the application comprise the first base 11, the second base 12 and the adjusting assembly 20. The lateral support device can compensate the distance between the support shoe 60 and the sidewall of the chamber. The second base 12 is abutted against the sidewall of the chamber, the first base 11 is connected with the support shoe 60, and the adjusting assembly 20 is used for adjusting the distance between the first base 11 and the second base 12, so that the overall thickness of the device is finely adjusted. The lateral support device is used to assist the support shoe 60 in supporting the sidewall of the chamber, and the driving assembly of the support shoe 60 of the tunneling machine does not need to be improved, and the cost of the equipment is lower.

[0034] Further, in an embodiment of the application, the lateral support device further comprises a telescopic box body 30 which is arranged between the first base 11 and the second base 12. The telescopic box body 30 comprises a first box piece 31 which is arranged on the first base 11 and a second box piece 32 which is arranged on the second base 12. The first box piece 31 and the second box piece 32 are arranged in a nested manner and can slide relative to each other along the arrangement direction of the first base 11 and the second base 12. Specifically, the first box body 31 and the second box body 32 can be arranged in an open end manner, and the first box body 31 and the second box body 32 are nested with each other and jointly form a cavity. The cavity can be filled with solid fillers such as iron sand, so as to increase the overall mass and structural strength of the device. When the support shoe exerts a force on the first base 11, the adjusting assembly 20 is subjected to a pressing force, and the fillers in the telescopic box body 30 can share part of the pressure, so as to reduce the load borne by the adjusting assembly 20.

[0035] In some embodiments, the lateral support device further comprises a guide assembly 40 which is arranged at the lower end of the first base 11 and the second base 12 and is used for guiding the device. The guide assembly 40 can be a roller which is arranged at the lower end of the first base 11 and the second base 12. Specifically, a universal wheel can be used to assist the device in moving in the tunneling direction and moving laterally. Of course, the guide assembly 40 is not limited to the roller, and a track can also be used for guiding.

[0036] Further, the lateral support device further comprises a driving cylinder 51, one end of which is connected with the first base 11, and the driving direction of the driving cylinder 51 intersects with the arrangement direction of the first base 11 and the second base 12; and a rail clamping device 52, which is connected with the end of the driving cylinder 51 away from the first base 11. In the embodiment, a guide rail can be pre-embedded in the starting chamber along the tunneling direction, and the guide rail cooperates with the adjusting assembly 20 to assist the first base 11 and the second base 12 to slide, and the driving cylinder 51 and the rail clamping device 52 can cooperate with the first base 11 to drive the first base 11 to slide. The driving cylinder 51 can be an oil cylinder, one end of which is hinged to one side of the first base 11, and the other end is hinged to the rail clamping device 52.

[0037] In the actual construction process, the rail clamping device 52 clamps the guide rail, and the driving cylinder 51 is in the retracted state, at which time the position of the first base 11 on the guide rail is limited. The lateral support device can cooperate with the support shoe 60 to make the tunneling machine step along the tunneling direction, after the tunneling machine completes the stepping, the support shoe 60 retracts and separates from the first base 11, the first base 11 and the second base 12 are driven by the driving cylinder 51 to step forward along the guide rail, and the rail clamping device 52 serves as the anchor point of the driving cylinder 51. After the first base 11 and the second base 12 slide along the guide rail and complete the stepping, the locking of the rail clamping device 52 to the guide rail is released, the driving cylinder 51 retracts to drive the rail clamping device 52 to move, and then the rail clamping device 52 clamps the guide rail again to fix the entire lateral support device, and then the support shoe 60 moves along the lateral direction again and is in abutment with the first base 11, and makes the second base 12 laterally support the side wall of the chamber. It is worth noting that due to the deviation of the planeness of the surface of the chamber, the position of the second base 12 in the lateral direction can be adjusted by the adjusting assembly to compensate for the deviation, so as to ensure that the second base 12 can abut against the side wall of the chamber. Of course, due to the limited stroke of the driving cylinder 51, after the tunneling machine completes one step, the lateral support device may need to step multiple times to move the first base 11 to the position corresponding to the support shoe 60.

[0038] It is worth noting that the guide assembly 40 comprises a guide 41 arranged at the lower end of the first base 11, which cooperates with the pre-embedded guide rail to facilitate the movement of the first base 11 along the guide rail direction. The guide 41 can be a sliding block, a guide wheel or a roller adapted to the guide rail, etc. Of course, the guide assembly 40 further comprises a roller 42 rotatably arranged at the lower end of the second base 12. The roller 42 is used to support the second base 12 and can also assist the second base 12 to step forward. The roller 42 can be a universal wheel to facilitate the movement of the second base 12 along the stepping direction and the lateral direction. The lateral direction herein refers to the direction perpendicular to the stepping direction, and the lateral movement is perpendicular to the side wall of the chamber.

[0039] In some embodiments, the side of the first base 11 facing away from the second base 12 is a docking surface 15, which is concave, and is provided with a plurality of protrusions 16. In this embodiment, the docking surface 15 is concave to match the end surface of the support shoe 60, and the protrusions 16 on the docking surface 15 are steel bars or protrusions welded on the docking surface 15 to increase the friction between the end surface of the support shoe 60 and the docking surface 15.

[0040] In some embodiments, the first base 11 is internally configured with a first accommodating cavity 17, and the side of the first base 11 adjacent to the docking surface 15 is provided with a valve 13 communicating with the first accommodating cavity 17, which is arranged near the lower end of the first base 11. In this embodiment, the valve 13 is a butterfly valve, and the upper side of the first base 11 is provided with a feeding hole 14 communicating with the first accommodating cavity 17. The valve 13 is in a normally closed state, and iron sand can be poured into the first accommodating cavity 17 through the feeding hole 14 until the first accommodating cavity 17 is filled. The iron sand can increase the mass of the lateral support device as a whole and improve the stability under heavy load when assisting support. At the same time, when the first base 11 and the second base 12 and the telescopic box 30 are subjected to lateral pressure, the iron sand can increase the overall strength of the first base 11 and the telescopic box 30, and the iron sand can withstand lateral pressure. Of course, the first accommodating cavity 17 can also communicate with the telescopic box 30, and when iron sand is poured into the first accommodating cavity 17, the iron sand can also fill the telescopic box 30, which can also increase the structural strength of the telescopic box 30. After the construction is completed, the butterfly valve can be opened to unload the iron sand for subsequent transportation.

[0041] It is worth noting that the above-mentioned not only can assist the tunneling machine to tunnel and excavate the tunnel, but also can retract a distance after the tunnel is excavated. And the tunneling machine can expand the space inside the tunnel around the tunneling machine in the circumferential direction to expand the space inside the tunnel in this section, and complete the disassembly of the tunneling machine. The movement of the tunneling machine in the expanded section can also be assisted by the lateral support device, and the disassembled parts can be transported out of the tunnel through the track or the transportation equipment.

[0042] In some embodiments, the adjusting assembly 20 is arranged between the first base 11 and the second base 12, including a screw rod 22 arranged on the second base 12, and a sleeve 21 arranged on the first base 11 and provided with an internal thread for cooperating with the screw rod 22. In this embodiment, the sleeve 21 can be rotated to adjust the distance between the first base 11 and the second base 12. During the adjustment, the first base 11 remains stationary in the direction perpendicular to the guide rail, and the second base 12 moves relative to the first base 11, ensuring that the second base 12 abuts against the sidewall of the chamber, so that the support shoe 60 does not abut against the first base 11 to generate a lateral pushing force on the guide rail, thereby avoiding the lateral deformation of the guide rail. Of course, the lateral support device can be provided with multiple adjusting assemblies 20, which are arranged around the telescopic box 30. When the sleeve 21 is rotated, the butt joint angle strip adjustment mode needs to be used to avoid the over-adjustment of the adjusting assembly 20 and the jamming.

[0043] At present, the TBM launching generally uses the drill and blast method to drill a distance in the form of blasting and excavation to form a launching chamber and a round cross-section launching chamber. After the TBM is assembled in the launching chamber, it is driven into the launching chamber to start the construction from the launching chamber. Since the space of the launching chamber does not meet the launching conditions, the TBM cannot start the construction directly in the launching chamber. Therefore, the existing launching construction method needs to excavate a long launching chamber, which not only causes a large amount of manpower and material resources to be wasted, but also greatly prolongs the construction period. In addition, the safety risk of drilling and blasting or mechanically excavating a long path tunnel is large.

[0044] In view of the above problems, the present application also provides a tunneling equipment including the lateral support device. The tunneling equipment also includes a tunneling machine matched with the lateral support device. The lateral support device and the tunneling equipment include the first base 11, the second base 12, the adjusting assembly 20, the telescopic box 30 and the guide assembly 40. The lateral support device can compensate the distance between the support shoe 60 and the sidewall of the chamber. The second base 12 abuts against the sidewall of the chamber, and the first base 11 is connected with the support shoe 60. The adjusting assembly 20 is used to adjust the distance between the first base 11 and the second base 12, so as to finely adjust the overall thickness of the device. In addition, the telescopic box 30 can be filled with iron sand and other fillers to increase the overall mass and structural strength of the device. The guide assembly is used to guide the device and assist the device to move in the tunneling direction and the lateral direction. The device is used to assist the support shoe 60 to support the sidewall of the chamber, and the driving assembly of the support shoe 60 of the tunneling machine does not need to be improved, so the cost of the equipment is lower. In addition, the increase of the internal space of the chamber also facilitates the observation and adjustment of the posture of the TBM.

[0045] The tunneling equipment can be launched in situ through the lateral support device in the assembly chamber. The lateral support device can be installed by using the hoisting machinery in the assembly chamber. The lateral support device needs to be hoisted to the pre-buried guide rail and configured with a rail clamp for auxiliary movement and limiting installation. After the first base 11 is positioned at a position corresponding to the support shoe, the weight and stability of the telescopic box 30 are increased by adding iron sand counterweight in the telescopic box 30, and the second base 12 is attached to the wall by rotating the adjusting assembly 20. After the TBM horizontal support oil cylinder starts to work, the support shoe is connected to the first base 11, and the attitude change of the equipment is monitored and adjusted by the measurement system of the TBM under the gradual action of the lateral support force of the support oil cylinder. After the horizontal support force fully acts on the sidewall of the assembly chamber, the TBM starts to advance and change steps. After completing a cycle of work, the horizontal support shoe is loosened, the main beam saddle structure is recovered, and the lateral support device is moved forward by the in-hole wall block and the driving cylinder 51 for the next step cycle operation until the main machine of the equipment completely enters the launch reinforcement area. After the launch is completed, the excess counterweight iron sand counterweight in the telescopic box 30 is discharged through the butterfly valve, and the lateral support device is removed for the next launch operation.

[0046] Compared with the prior art, the tunneling equipment provided by the embodiment of the application can directly complete the launch in situ without excavating a launch chamber, effectively reducing the construction cost, shortening the construction period, and to some extent, reducing the construction risk.

[0047] The above is only part or preferred embodiments of the application, neither the text nor the drawings can limit the scope of protection of the application, any equivalent structural transformation using the content of the specification and drawings, or direct / indirect application in other related technical fields is included in the scope of protection of the application.

Claims

1. A lateral support device for TBM shoe attitude position adjustment, characterized by, The lateral support device comprises: a first base; a second base, which is arranged in a spaced manner with the first base; an adjusting assembly, which is connected with the first base and the second base, and is used for adjusting the distance between the first base and the second base.

2. The lateral support device of claim 1, wherein, The lateral support device further comprises a telescopic box body, which is arranged between the first base and the second base, and comprises: a first box part, which is arranged on the first base; a second box part, which is arranged on the second base, and is arranged in a nested manner with the first box part, and can slide with respect to the first base and the second base along the arrangement direction of the first base and the second base.

3. The lateral support device of claim 2, wherein, The lateral support device further comprises a guide assembly, which is arranged at the lower end of the first base and the second base.

4. The lateral support device of claim 3, wherein, The lateral support device further comprises: a driving cylinder, one end of which is connected with the first base, and the driving direction of the driving cylinder intersects with the arrangement direction of the first base and the second base; a rail clamping device, which is connected with the end of the driving cylinder, which is away from the first base.

5. The lateral support device of claim 4, wherein, The guide assembly comprises a guide part, which is arranged at the lower end of the first base, and a roller, which is rotatably arranged at the lower end of the second base.

6. The lateral support apparatus of claim 1, wherein, The side of the first base, which is away from the second base, is an abutting surface, the abutting surface is arranged in a concave manner, and the abutting surface is further provided with a plurality of protrusions.

7. The lateral support apparatus of claim 2, wherein, The first base is internally provided with a first accommodating cavity, which is in communication with the telescopic box body, the first base is provided with a feeding hole, which is in communication with the first accommodating cavity, and the side of the first base is provided with a valve, which is in communication with the first accommodating cavity, and the valve is arranged close to the lower end of the first base.

8. The lateral support device of claim 2, wherein, The adjusting assembly is arranged between the first base and the second base, and comprises a screw rod, which is arranged on the second base, and a sleeve, which is rotatably arranged on the first base, and the sleeve is provided with an internal thread, which is used for cooperating with the screw rod.

9. The lateral support apparatus of claim 2, wherein, The lateral support device comprises a plurality of adjusting assemblies, which are arranged around the telescopic box body.

10. A tunneling apparatus, characterized by, The lateral support device comprises any one of claims 1-9.

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