TBM (Tunnel Boring Machine) anti-sliding device for inclined shaft

Abstract

The utility model belongs to the technical field of tunnel construction auxiliary equipment, and particularly discloses an inclined shaft TBM (tunnel boring machine) anti-slip device which comprises a plurality of circumferentially distributed anti-slip blocks and mounting cylinders, the mounting cylinders comprise a first mounting cylinder and a second mounting cylinder which are coaxially arranged, and a guide cylinder is connected between one end of the first mounting cylinder and the second mounting cylinder; a plurality of sliding grooves are formed in the guide cylinder in the axial direction of the guide cylinder, the sliding grooves are distributed in the circumferential direction of the guide cylinder, guide blocks are arranged in the sliding grooves in a sliding fit mode, and connecting rods are hinged between the bottoms of the anti-sliding blocks and the guide blocks; the driving unit can drive the multiple guide blocks to slide in a reciprocating mode, and when the guide blocks slide in the direction close to the first mounting barrel, the upper portions of the anti-sliding blocks can be driven to stretch out of the guide barrels to abut against the side wall of the inclined shaft; and when the guide block slides in the direction away from the first mounting cylinder, the top of the anti-slip block can be driven to retract to the inner side of the mounting cylinder. According to the utility model, the TBM can be prevented from sliding, and the safety in a well is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel construction auxiliary equipment, in particular to an inclined shaft TBM anti-slip device. Background Art

[0002] TBM originated in Europe and America, with a history of more than 100 years. It has been widely used abroad. In the middle and late last century, TBM was used in the foreign pumped storage power station industry, mainly in inclined shafts, and a small amount in horizontal tunnels. Such as the inclined shaft construction of the Kamirukawa Pumped Storage Power Station, the inclined shaft construction of the Kusano River Pumped Storage Power Station, and the inclined shaft construction of the Limmern Hydropower Project in Switzerland. The main excavation methods are reverse well pilot hole + inclined shaft TBM forward excavation and inclined shaft TBM reverse full-section excavation.

[0003] The stepping mode of TBM is mostly to use a propulsion cylinder to push the TBM head part to slide along the track in the well, and the supporting equipment of the TBM also follows along the track. When the existing TBM device is used in an inclined well, due to the certain inclination of the inclined well, the TBM is prone to slipping under the action of gravity, and the greater the inclination of the inclined well, the more likely the TBM is to slip under the action of gravity. Utility Model Content

[0004] The utility model provides a device for preventing a TBM from slipping in an inclined shaft, which aims to prevent the TBM from slipping and ensure safety in the shaft.

[0005] The utility model is realized by the following technical scheme: an anti-slip device for a TBM in an inclined shaft, comprising a plurality of anti-slip blocks distributed in the circumferential direction and a mounting cylinder connected between a TBM main machine and ancillary equipment of the TBM, wherein the mounting cylinder comprises a first mounting cylinder and a second mounting cylinder arranged coaxially, a gap is left between the first mounting cylinder and the second mounting cylinder, and a guide cylinder is connected between one end of the first mounting cylinder and the second mounting cylinder;

[0006] The guide cylinder is provided with a plurality of slide grooves along its axial direction, and the plurality of slide grooves are distributed along the circumference of the guide cylinder, and guide blocks are slidably matched in the plurality of slide grooves, and connecting rods are hingedly connected between the bottoms of the plurality of anti-slip blocks and the plurality of guide blocks respectively;

[0007] It also includes a driving unit, which can drive the multiple guide blocks to slide back and forth, and when the guide block slides toward the first installation tube, it can drive the upper part of the anti-slip block to extend out of the guide tube and press against the side wall of the inclined shaft; when the guide block slides toward the direction away from the first installation tube, it can drive the top of the anti-slip block to be retracted to the inner side of the installation tube.

[0008] Compared with the prior art, this solution has the following advantages and beneficial effects:

[0009] Usually, the existing TBM itself has a tightening system for tightening the side wall of the inclined shaft. In this solution, the mounting cylinder is installed on the main body of the TBM and the supporting equipment of the TBM. When the TBM needs to operate, the driving unit drives multiple guide blocks to slide simultaneously, so that multiple anti-slip blocks move at the same time. When one side of the anti-slip block contacts the end of the first mounting cylinder, it will push the connecting rod on the anti-slip block to gradually reset and stand upright, so that the anti-slip block gradually extends out of the inner side of the mounting cylinder and the multiple anti-slip blocks expand outward, thereby achieving multiple anti-slip blocks against the side wall of the inclined shaft. In this way, when the TBM is excavating, the anti-slip blocks can further play an anti-slip role, ensuring that the TBM's rear supporting system can reliably excavate at a large angle, further ensuring the safety of the TBM's work.

[0010] Furthermore, the driving unit is a hydraulic cylinder, an end of an output shaft of the hydraulic cylinder is connected to a fixing plate, and the plurality of guide blocks are all connected to the fixing plate.

[0011] Beneficial effects: In this solution, the driving unit adopts a hydraulic cylinder, which works more stably and has stronger kinetic energy. In addition, in this solution, multiple guide blocks are connected to a fixed plate at the same time, so that only one driving unit is set to drive multiple guide blocks to slide at the same time, thereby making the entire device simpler and saving costs.

[0012] Furthermore, the plurality of anti-slip blocks are evenly distributed circumferentially.

[0013] Beneficial effect: Such a setting can support the well wall more evenly and achieve better supporting effect.

[0014] Furthermore, the top and side surfaces of the anti-slip blocks are both arc surfaces.

[0015] Beneficial effect: Usually the well wall has a certain curvature, and the shape of the top side surface of the anti-slip block has a larger contact area with the well wall, thereby being able to improve the tightness of the mutual contact.

[0016] Furthermore, both sides of the anti-slip block are inclined surfaces inclined to each other.

[0017] Beneficial effect: In this solution, the two sides of the anti-slip block are inclined surfaces, so when the anti-slip block is driven to extend or retract in the gap between the first mounting cylinder and the second mounting cylinder, the inclined surface of the anti-slip block can play a guiding role, facilitating the smooth extension and retraction of the anti-slip block, and when the anti-slip block is retracted, the ends of the first mounting cylinder and the second mounting cylinder can squeeze the sides of the anti-slip block, causing the connecting rod assembly to swing and tilt, so that the anti-slip block can be smoothly retracted to the inner side of the second mounting cylinder.

[0018] Furthermore, a connecting plate is connected to the bottom of the anti-slip block, hinged plates are connected to both sides of the guide block, and two connecting rods are provided on each anti-slip block, and the two ends of the two connecting rods are hinged to the hinged plate and the connecting plate respectively.

[0019] Beneficial effect: The arrangement of the connecting plate and the hinged plate in this solution makes it more convenient to connect and install the connecting rod. There are two connecting rods, which can form a parallelogram mechanism with the connecting plate and the hinged plate, making the swing of the anti-slip block more stable.

[0020] Furthermore, one end of the second mounting tube away from the first mounting tube is connected to a mounting bracket, and the cylinder body of the hydraulic cylinder is mounted on the mounting bracket.

[0021] Beneficial effect: The arrangement of the mounting bracket in this solution facilitates the installation of the hydraulic cylinder.

[0022] Furthermore, the mounting bracket includes two mutually parallel horizontal plates and a vertical plate connected between the two horizontal plates, the ends of the two horizontal plates are connected to the end of the second mounting tube, and the cylinder body of the hydraulic cylinder is connected to the vertical plate.

[0023] Beneficial effect: The structural weight of the mounting bracket in this solution is lighter, which can reduce the weight of the entire device.

[0024] Furthermore, a first end cap is coaxially connected to a side of the first mounting tube close to the second mounting tube and located inside the first mounting tube, and a second end cap is coaxially connected to a side of the second mounting tube away from the first mounting tube and located inside the second mounting tube; both ends of the guide tube are respectively connected to the first end cap and the second end cap.

[0025] Beneficial effect: The arrangement of the first end cover and the second end cover in this solution facilitates the connection and fixation of the guide cylinder.

[0026] Furthermore, a clamping block is connected to the top of the anti-slip block, the clamping block is slidably matched with the anti-slip block, the interior of the clamping block is hollow, and the clamping block is connected to the hydraulic system through a pipeline.

[0027] Beneficial effect: The cooperation between the clamping block and the hydraulic system in this scheme can make the clamping block expand and slide outward through the hydraulic system after the anti-slip block abuts against the well wall, thereby further applying pressure to the well wall, increasing the friction between the well wall and further improving the anti-slip effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The drawings described herein are used to provide a further understanding of the embodiments of the present utility model, constitute a part of this application, and do not constitute a limitation of the embodiments of the present utility model. In the drawings:

[0029] Figure 1This is a front view of a TBM anti-slip device for an inclined shaft according to an embodiment of the utility model.

[0030] Figure 2 This is a schematic diagram of a state in which an anti-slip block of an anti-slip device for a TBM in an inclined shaft of the utility model extends out of a mounting tube;

[0031] Figure 3 It is a side view of Example 1 of an anti-slip device for TBM in an inclined shaft of the utility model;

[0032] Figure 4 This is a schematic diagram of a state in which the anti-slip block in Example 1 of an anti-slip device for a TBM in an inclined shaft of the utility model is retracted into the inner side of the installation tube;

[0033] Figure 5 It is a longitudinal cross-sectional view of Example 2 of an anti-slip device for an inclined shaft TBM of the utility model.

[0034] Marks and corresponding parts names in the attached drawings:

[0035] Mounting cylinder 1, first mounting cylinder 101, second mounting cylinder 102, mounting bracket 2, first end cover 3, second end cover 4, guide cylinder 5, anti-slip block 6, clamping block 601, connecting hole 602, connecting plate 7, connecting rod 8, hinged plate 9, guide block 10, fixing plate 11, hydraulic cylinder 12. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solutions and advantages of the utility model more clearly understood, the utility model is further described in detail below in conjunction with embodiments and drawings. The schematic implementation manner of the utility model and its description are only used to explain the utility model and are not intended to limit the utility model.

[0037] Example 1

[0038] like Figure 1 , Figure 2 and Figure 3 As shown, this embodiment 1 provides an anti-slip device for an inclined shaft TBM, including a plurality of circumferentially distributed anti-slip blocks 6 and an installation tube 1 connected between the TBM main machine and the TBM's supporting equipment. In this embodiment, four anti-slip blocks 6 are provided, and the four anti-slip blocks 6 are evenly distributed circumferentially.

[0039] In this embodiment, a first end cover 3 is coaxially connected to a side of the first mounting tube 101 close to the second mounting tube 102 and located inside the first mounting tube 101, and a second end cover 4 is coaxially connected to a side of the second mounting tube 102 away from the first mounting tube 101 and located inside the second mounting tube 102. The first end cover 3 and the second end cover 4 are welded and fixed to the first mounting tube 101 and the second mounting tube 102, respectively.

[0040] One end of the guide tube 5 is connected to the first end cover 3 by means of screws or bolts, and the other end of the guide tube 5 passes through the second end cover 4 and is connected to the second end cover 4 by means of screws or bolts.

[0041] In this embodiment, the mounting tube 1 includes a first mounting tube 101 and a second mounting tube 102 which are coaxially arranged. A gap is left between the first mounting tube 101 and the second mounting tube 102, and a guide tube 5 is connected between one end of the first mounting tube 101 and the second mounting tube 102. Figure 3 As shown, the top and side surfaces of the anti-slip block 6 in this embodiment are all arc surfaces. Figure 2 As shown, in this embodiment, both sides of the anti-slip block 6 are inclined surfaces inclined to each other, and the slope of the anti-slip block 6 facing the first installation cylinder 101 is greater than the slope of the anti-slip block 6 facing the second installation cylinder 102.

[0042] The guide cylinder 5 is provided with four slide grooves along its axial direction, and the four slide grooves are evenly distributed along the circumference of the guide cylinder 5. Guide blocks 10 are slidably fitted in the four slide grooves, and connecting rods 8 are hinged between the bottoms of the four anti-slip blocks 6 and the four guide blocks 10 respectively; in this embodiment, a connecting plate 7 is connected to the bottom of the anti-slip block 6, and in this embodiment, the connecting plate 7 and the anti-slip block 6 are integrally formed, and hinge plates 9 are connected on both sides of the guide block 10, and the hinge plates 9 and the guide blocks 10 are integrally formed or welded and fixed. There are two connecting rods 8 on each anti-slip block 6, and the two ends of the two connecting rods 8 are respectively hinged to the hinge plate 9 and the connecting plate 7 through pins.

[0043] An inclined shaft TBM anti-skid device in the present embodiment also includes a driving unit, which can drive the four guide blocks 10 to slide back and forth, and when the guide block 10 slides toward the first mounting cylinder 101, it can drive the anti-skid block 6 to be located in the gap between the first mounting cylinder 101 and the second mounting cylinder 102, and can make the upper part of the anti-skid block 6 extend out of the guide cylinder 5 and press against the side wall of the inclined shaft; when the guide block 10 slides toward the direction away from the first mounting cylinder 101, it can drive the top of the anti-skid block 6 to be retracted to the inner side of the mounting cylinder 1.

[0044] In this embodiment, the driving unit is a hydraulic cylinder 12 , the output shaft end of the hydraulic cylinder 12 is connected to a fixed plate 11 , and four guide blocks 10 are all connected to the fixed plate 11 . In this embodiment, the four guide blocks 10 are all welded to the fixed plate 11 .

[0045] In this embodiment, a mounting bracket 2 is connected to one end of the second mounting tube 102 away from the first mounting tube 101, and the cylinder body of the hydraulic oil cylinder 12 is mounted on the mounting bracket 2. The mounting bracket 2 in this embodiment includes two mutually parallel horizontal plates and a vertical plate connected between the two horizontal plates. The two ends of the vertical plate are respectively welded and fixed to the ends of the two horizontal plates, and the ends of the two horizontal plates are welded and connected to the ends of the second mounting tube 102. The cylinder body of the hydraulic oil cylinder 12 is connected to the vertical plate by bolts. The mounting bracket 2 in this embodiment has a simple structure and is lighter in weight.

[0046] The specific implementation process is as follows:

[0047] Combination Figure 4 As shown, when there is no need to support and prevent the well wall from slipping, the output shaft of the hydraulic cylinder 12 is retracted and pulls the four guide blocks 10 to slide to the right, so that the side walls of the four anti-slip blocks 6 contact the left end of the second guide cylinder 5 and drive the connecting rod 8 assembly to swing, so that the anti-slip blocks 6 gradually move down to the inner side of the second guide cylinder 5, thereby making the anti-slip blocks 6 break away from the well wall.

[0048] Combination Figure 1 and Figure 2 As shown, when it is necessary to support the well wall and prevent the TBM from slipping, the output shaft of the hydraulic cylinder 12 extends out and drives the four guide blocks 10 to slide to the left. When the side wall of the anti-slip block 6 contacts the side wall of the first guide cylinder 5 and the second guide cylinder 5, the connecting rod 8 assembly is reset and upright. At this time, the anti-slip block 6 moves to the gap between the first guide cylinder 5 and the second guide cylinder 5, and its upper part gradually extends out of the first guide cylinder 5 and the second guide cylinder 5 and presses against the well wall. In this way, the TBM itself has a tightening system. The anti-slip device in this embodiment can further ensure the operation safety of the TBM and prevent the TBM from slipping.

[0049] Example 2

[0050] like Figure 5 As shown, the difference between this embodiment and embodiment 1 is that a clamping block 601 is connected to the top of the anti-slip block 6, the clamping block 601 is slidably matched with the anti-slip block 6, the clamping block 601 is hollow inside, and the clamping block 601 is connected to the hydraulic system in the prior art through a pipeline.

[0051] The cooperation between the clamping block 601 and the hydraulic system in this embodiment can replenish hydraulic oil into the clamping block 601 through the hydraulic system after the anti-slip block 6 abuts against the well wall, so that the clamping block 601 expands and slides outward to further apply pressure to the well wall, thereby increasing the friction between the anti-slip block 6 and the well wall, thereby further improving the anti-slip effect.

[0052] It should be noted that the above description of the disclosed embodiments enables professionals and technicians in the field to implement or use the present application. Various modifications to these embodiments will be apparent to professionals and technicians in the field, and the general principles defined herein can be implemented in other embodiments without departing from the scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but should conform to the widest scope consistent with the principles and novel features disclosed herein.

[0053] In the description of the present invention, it should be noted that the terms "first", "second", "third", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0054] In the description of this document, terms such as "up", "down", "left", "right", "front", "back", "top", "bottom", "inside", "outside", "middle", "vertical", "horizontal", "lateral", and "longitudinal" indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only used to illustrate the relative positional relationships between the various components or components, and do not particularly limit the specific installation orientations of the various components or components.

[0055] In the description of this document, some terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to the specific circumstances.

[0056] In the description of this document, the terms "installed", "set", "provided with", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0057] The structures, proportions, sizes, etc. drawn in the drawings in this application are only used to match the contents disclosed in this technical briefing book for technical personnel in this field to understand and read, and are not used to limit the restrictive conditions for the implementation of this application. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size, without affecting the efficacy and purpose that can be achieved by this application, should still fall within the scope of the technical content disclosed in this application.

[0058] The terms used in this document are those common terms currently widely used in the art in consideration of the functions of the present disclosure, but these terms may vary according to the intention of a person of ordinary skill in the art, precedents, or new technologies in the art. In addition, specific terms may be selected by the applicant, and in this case, their detailed meanings will be described in the detailed description of the present disclosure. Therefore, the terms used in the document should not be understood as simple names, but rather as an overall description based on the meaning of the terms and the present disclosure.

[0059] Flowcharts or text are used in this document to illustrate the operating steps performed according to the embodiments of the present application. It should be understood that the operating steps in the embodiments of the present application are not necessarily accurately performed in the order of recording. On the contrary, various steps can be processed in reverse order or simultaneously as needed. At the same time, other operations can also be added to these processes, or a certain step or several steps can be removed from these processes.

[0060] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. An anti-slip device for inclined shaft TBM, characterized in that: The invention comprises a plurality of anti-slip blocks distributed in the circumferential direction and a mounting cylinder connected between the TBM main machine and the supporting equipment of the TBM, wherein the mounting cylinder comprises a first mounting cylinder and a second mounting cylinder arranged coaxially, a gap is left between the first mounting cylinder and the second mounting cylinder, and a guide cylinder is connected between one end of the first mounting cylinder and the second mounting cylinder; The guide cylinder is provided with a plurality of slide grooves along its axial direction, and the plurality of slide grooves are distributed along the circumference of the guide cylinder, and guide blocks are slidably matched in the plurality of slide grooves, and connecting rods are hingedly connected between the bottoms of the plurality of anti-slip blocks and the plurality of guide blocks respectively; It also includes a driving unit, which can drive the multiple guide blocks to slide back and forth, and when the guide block slides toward the first installation tube, it can drive the upper part of the anti-slip block to extend out of the guide tube and press against the side wall of the inclined shaft; when the guide block slides toward the direction away from the first installation tube, it can drive the top of the anti-slip block to be retracted to the inner side of the installation tube.

2. The inclined shaft TBM anti-slip device according to claim 1 is characterized in that: The driving unit is a hydraulic cylinder, the end of the output shaft of the hydraulic cylinder is connected to a fixing plate, and the plurality of guide blocks are all connected to the fixing plate.

3. The inclined shaft TBM anti-slip device according to claim 1, characterized in that: The plurality of anti-slip blocks are evenly distributed in the circumferential direction.

4. The inclined shaft TBM anti-slip device according to claim 1, characterized in that: The top and side surfaces of the anti-slip blocks are both arc surfaces.

5. The inclined shaft TBM anti-slip device according to claim 4 is characterized in that: Both sides of the anti-slip block are inclined surfaces inclined to each other.

6. The inclined shaft TBM anti-slip device according to claim 1, characterized in that: The bottom of the anti-slip block is connected with a connecting plate, and both sides of the guide block are connected with hinged plates. Two connecting rods are provided on each anti-slip block, and the two ends of the two connecting rods are hinged to the hinged plate and the connecting plate respectively.

7. The inclined shaft TBM anti-slip device according to claim 2, characterized in that: One end of the second mounting tube away from the first mounting tube is connected to a mounting bracket, and the cylinder body of the hydraulic cylinder is mounted on the mounting bracket.

8. The inclined shaft TBM anti-slip device according to claim 7, characterized in that: The mounting bracket includes two mutually parallel horizontal plates and a vertical plate connected between the two horizontal plates. The ends of the two horizontal plates are connected to the end of the second mounting tube, and the cylinder body of the hydraulic cylinder is connected to the vertical plate.

9. The inclined shaft TBM anti-slip device according to claim 1, characterized in that: A first end cap is coaxially connected to a side of the first mounting tube close to the second mounting tube and located inside the first mounting tube, and a second end cap is coaxially connected to a side of the second mounting tube away from the first mounting tube and located inside the second mounting tube; both ends of the guide tube are respectively connected to the first end cap and the second end cap.

10. The inclined shaft TBM anti-slip device according to any one of claims 1 to 9, characterized in that: The top of the anti-slip block is connected with a clamping block, the clamping block is slidably matched with the anti-slip block, the inside of the clamping block is hollow, and the clamping block is connected with the hydraulic system through a pipeline.

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