Dual-mode conversion TBM anchor rod fixing device

Abstract

The invention provides a dual-mode conversion TBM anchor rod fixing device and relates to the field of anchor rod fixing, in particular to the dual-mode conversion TBM anchor rod fixing device which comprises an annular rail arranged outside a TBM main beam in a surrounding mode, an adjusting device arranged on the annular rail in a sliding mode and a support arranged on one side of the adjusting device. The driving feeding device is arranged above the support, a feeding pipe is arranged between the adjusting device and the driving feeding device, and a drilling device is arranged on one side of the feeding pipe. The outer wall of the drill pipe is provided with the first spiral push block used for discharging rock chips outwards from the drill hole, and the drill bit is designed to be a cone, so that the chips fall down towards the first spiral push block along the arc-shaped outer wall of the drill bit, and the rock chips are pushed out of the hole through the first spiral push block; therefore, the problem that drilling holes can be cleaned only after the drill rod and the drill bit are taken out is solved, the anchor rod fixing efficiency is effectively improved, and the efficiency of converting the TBM from an open type to a single shield type is further improved.

Description

Technical Field

[0001] The invention relates to the field of kiln cars, and in particular to a dual-mode conversion TBM anchor fixing device. Background Art

[0002] A dual-mode conversion TBM that can switch between single-shield mode and open mode, used for tunnel excavation in hard rock areas and soft rock areas, improving the applicability of the TBM working environment and the efficiency of work;

[0003] In the open mode, the TBM is usually supported on the rock wall by two sets of support shoes, and the reverse force is obtained to achieve step-by-step forward movement. In the single shield mode, the TBM is usually advanced by first setting up the initial reaction frame, installing the steel pipe segment on one side of the initial reaction frame, and then pushing the end of the steel pipe segment with the auxiliary propulsion cylinder.

[0004] When setting up the reaction frame, the driving device of the anchor fixing device is first used to drive the drill rod and the drill bit to drill holes on the reaction frame. After the drilling is completed, the drill rod and the drill bit are taken out, and then the borehole is cleaned. After the cleaning is completed, the anchor rod is pushed into the borehole through the feeding device, and finally grouting is performed. After the drilling is completed, the drill rod and the drill bit need to be taken out before the borehole can be cleaned. This process is relatively cumbersome, which reduces the efficiency of setting up the reaction frame and the efficiency of converting from open type to single shield type. Therefore, a dual-mode conversion TBM anchor fixing device is proposed. Summary of the invention

[0005] The purpose of the present invention is to address the current dual-mode conversion TBM anchor fixing device, which requires taking out the drill rod and drill bit before cleaning the borehole after drilling is completed, which is a rather cumbersome process. This reduces the efficiency of setting up the reaction frame and reduces the efficiency of conversion from open type to single shield type.

[0006] In order to achieve the above-mentioned purpose of the invention, the present invention provides the following dual-mode conversion TBM anchor fixing device to improve the above-mentioned problem.

[0007] The specific application is as follows:

[0008] A dual-mode conversion TBM anchor fixing device, comprising an annular track arranged around the outside of the TBM main beam, an adjustment device slidably arranged on the annular track, a bracket arranged on one side of the adjustment device, a driving and feeding device arranged above the bracket, a feeding pipe is arranged between the adjustment device and the driving and feeding device, and a drilling device is arranged on one side of the feeding pipe;

[0009] The drilling device comprises a drill pipe fixedly connected to one end of a feeding pipe, a drill bit is arranged at one end of the drill pipe, the drill bit is driven by a driving feeding device, a first spiral push block is arranged on the outer wall of the drill pipe for discharging rock debris from the drill hole, and the drilling radius of the drill bit is equal to the sum of the radius of the drill pipe and the length of the first spiral push block perpendicular to the direction of the drill pipe;

[0010] The drilling device can realize automatic delivery of anchor rods into the drill hole without taking out the drill pipe through structural transformation.

[0011] As a preferred technical solution of the present application, a circular groove and a tooth groove are provided at one end of the drill pipe, and the tooth groove is located above the circular groove.

[0012] As a preferred technical solution of the present application, an annular protrusion is slidably connected in the circular groove, a pawl groove is provided on the side wall of the annular protrusion, semicircular blocks are fixedly connected to the upper and lower outer walls of the pawl groove, a rotating shaft is rotatably connected between the semicircular blocks, a pawl is provided on the outer wall of the rotating shaft, and a torsion spring is fixedly connected between the pawl and the rotating shaft.

[0013] As a preferred technical solution of the present application, the pawl is engaged with the tooth groove, and one end of the drill pipe is fixedly connected to a ring cover plate by screws.

[0014] As a preferred technical solution of the present application, the arc-shaped side wall at the upper end of the annular protrusion is symmetrically fixedly connected to a No. 1 axis frame, both ends of the No. 1 axis frame are fixedly connected to a flip shaft, one end of the flip shaft is fixedly connected to a No. 2 axis frame, the No. 2 axis frame is fixedly connected to a drill bit, the drill bit is divided into two semi-cones, and they are attracted to each other by magnets provided on the inner walls, and a conical groove is provided in the drill bit.

[0015] As a preferred technical solution of the present application, the outer wall of the drill pipe is provided with multiple groups of spiral grooves from top to bottom, the spiral grooves are communicated with the interior of the drill pipe, the No. 1 spiral push block is slidably arranged inside the spiral grooves, and the No. 2 spiral push block is arranged inside the four groups of spiral grooves above one end of the drill pipe.

[0016] As a preferred technical solution of the present application, a connecting rod groove is provided on the outer wall of the drill pipe from top to bottom, and the connecting rod groove passes through multiple groups of the spiral grooves. Connecting rods are fixedly connected between multiple groups of adjacent No. 1 spiral push blocks along the axial direction of the drill pipe, and the No. 2 spiral push block is fixedly connected with the No. 1 spiral push blocks along the axial direction of the drill pipe and adjacent No. 1 spiral push blocks are fixedly connected by connecting rods.

[0017] As a preferred technical solution of the present application, a transmission rod groove is provided inside the No. 2 spiral push block, a sliding protrusion is fixedly connected to the side wall of the transmission rod groove, a transmission rod is slidably connected inside the transmission rod groove, a sliding protrusion groove is provided inside the transmission rod, and the sliding protrusion is slidably arranged in the sliding protrusion groove.

[0018] As a preferred technical solution of the present application, an L-shaped rod groove is further provided on the outer wall of one end of the drill pipe, the L-shaped rod groove is communicated with the spiral groove adjacent thereto, one end of the transmission rod is located inside the L-shaped rod groove, one end of the transmission rod is also fixedly connected to an L-shaped rod, the shorter end of the L-shaped rod is located in the L-shaped rod groove, and the longer end of the L-shaped rod is fixedly connected to a limiting rod;

[0019] As a preferred technical solution of the present application, a spring groove is also provided on the outer wall of one end of the drill pipe, one end of the limit rod passes through the outer wall of the drill pipe and the spring groove, and is fixedly connected with a wedge block, and a spring is sleeved on the outer wall of the limit rod.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] In the scheme of this application:

[0022] 1. In order to solve the problem that the anchor fixing device in the prior art needs to take out the drill rod and the drill bit before cleaning the borehole after the drilling is completed, the present application provides a No. 1 spiral push block on the outer wall of the drill pipe for discharging rock debris from the borehole, and designs the drill bit as a cone, so that the debris falls along the arc-shaped outer wall of the drill bit to the No. 1 spiral push block, and the rock debris is pushed out of the hole by the No. 1 spiral push block, thereby solving the problem that the drill rod and the drill bit need to be taken out before cleaning the borehole, effectively improving the efficiency of anchor fixing, and further improving the efficiency of TBM conversion from open type to single shield type;

[0023] 2. The present application provides a No. 1 spiral push block and a No. 2 spiral push block in the drill pipe, and changes the positions of the No. 1 spiral push block and the No. 2 spiral push block by changing the forward and reverse rotation of the drill pipe, so that when the drill bit is drilling a hole, the No. 1 spiral push block and the No. 2 spiral push block are used to discharge the rock debris generated by the drill bit drilling a hole out of the hole, and when the drilling is completed, the No. 1 spiral push block and the No. 2 spiral push block are used to cooperate with the driving feeding device to automatically transport the anchor rod into the borehole, thereby solving the complicated process of first taking out the drill bit and the drill rod and then placing the anchor rod in the prior art, effectively improving the efficiency of anchor rod fixing, and further improving the efficiency of TBM conversion from open type to single shield type. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 An overall structural diagram of a dual-mode conversion TBM anchor fixing device provided in this application;

[0025] Figure 2 A structural diagram of a drilling device in a dual-mode conversion TBM anchor fixing device provided in the present application;

[0026] Figure 3 A structural diagram of a drilling device in a dual-mode conversion TBM anchor fixing device provided in the present application after removing the drill pipe and the drill bit;

[0027] Figure 4 A structural diagram of a drill pipe and a drill bit of a drilling device in a dual-mode conversion TBM anchor fixing device provided in the present application;

[0028] Figure 5 An exploded view of a drill pipe and a drill bit of a drilling device in a dual-mode conversion TBM anchor fixing device provided in the present application;

[0029] Figure 6 A structural diagram of a drill bit of a drilling device in a dual-mode conversion TBM anchor fixing device provided in the present application;

[0030] Figure 7 for Figure 6 A structural diagram of a second spiral push block of a drilling device in a dual-mode conversion TBM anchor fixing device;

[0031] Figure 8 A structural diagram of a rod transmission device of a drilling device in a dual-mode conversion TBM anchor fixing device provided in the present application;

[0032] Fig. 9 A structural diagram of an anchor rod used in a dual-mode conversion TBM anchor rod fixing device provided in this application.

[0033] Indicated in the figure:

[0034] 1. Circular track;

[0035] 3. Adjustment device;

[0036] 4. Bracket;

[0037] 5. Drive feeding device;

[0038] 6. Feeding pipe;

[0039] 7. Drilling device; 71. Drill pipe; 711. Spiral groove; 712. Connecting rod groove; 713. L-shaped rod groove; 714. Spring groove; 715. Circular groove; 716. Tooth groove; 72. Annular cover plate; 73. Annular protrusion; 731. Ratchet groove; 732. Semicircular block; 733. Rotating shaft; 734. Ratchet; 735. Torsion spring; 736. No. 1 shaft frame; 737. Turning shaft; 74. Drill bit; 741. No. 2 shaft frame; 751. No. 2 spiral push block; 7511. Transfer rod groove; 7512. Sliding protrusion; 752. Transfer rod; 7521. Sliding protrusion groove; 753. Connecting rod; 754. L-shaped rod; 755. Limit rod; 756. No. 1 spiral push block; 757. Spring; 758. Wedge block. DETAILED DESCRIPTION

[0040] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme 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 only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0041] As described in the background technology, the existing dual-mode conversion TBM anchor fixing device needs to remove the drill rod and drill bit before cleaning the borehole after drilling is completed. This process is rather cumbersome, which reduces the efficiency of setting up the reaction frame and reduces the efficiency of conversion from open type to single shield type.

[0042] In order to solve this technical problem, the present invention provides a dual-mode conversion TBM anchor fixing device, which is used to improve the anchor installation efficiency, thereby improving the TBM dual-mode conversion efficiency.

[0043] Specifically, please refer to Figure 1-Figure 9 A dual-mode conversion TBM anchor fixing device, comprising an annular track 1 arranged around the outside of the TBM main beam, an adjusting device 3 slidably arranged on the annular track 1, the adjusting device 3 is a prior art and is used to change the position and angle of a drilling device 7, a bracket 4 arranged on one side of the adjusting device 3, a driving and feeding device 5 arranged above the bracket 4, the driving and feeding device 5 is a prior art and is used to provide drilling power for the drilling device 7 and automatically add anchors to an upper feeding pipe 6, a feeding pipe 6 is arranged between the adjusting device 3 and the driving and feeding device 5, and a drilling device 7 is arranged on one side of the feeding pipe 6;

[0044] The drilling device 7 includes a drill pipe 71 fixedly connected to one end of the feeding pipe 6. The drill pipe 71 is used to cooperate with the first spiral push block 756 and the second spiral push block 751 to discharge rock debris from the hole and transport anchor rods into the hole. One end of the drill pipe 71 is provided with a drill bit 74 for drilling holes and for cooperating with the installation of anchor rods through structural transformation, and for pushing the drill pipe 71 out of the hole through the reaction force of the mud by increasing the contact area with the mud. The drill bit 74 is driven by the driving feeding device 5. The outer wall of the drill pipe 71 is provided with a first spiral push block 756 for discharging rock debris from the drill hole. The drilling radius of the drill bit 74 is equal to the sum of the radius of the drill pipe 71 and the length of the first spiral push block 756 perpendicular to the drill pipe 71.

[0045] The drilling device 7 can automatically deliver the anchor rod into the borehole without taking out the drill pipe 71 through structural transformation.

[0046] The present invention provides a dual-mode conversion TBM anchor fixing device, which provides a No. 1 spiral push block for discharging rock fragments from the borehole on the outer wall of the drill pipe, and designs the drill bit as a cone, so that the fragments fall along the curved outer wall of the drill bit to the No. 1 spiral push block, and the rock fragments are pushed out of the hole by the No. 1 spiral push block, thereby solving the problem of needing to take out the drill pipe and the drill bit before cleaning the borehole, effectively improving the efficiency of anchor fixing, and further improving the efficiency of TBM conversion from open type to single shield type.

[0047] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings.

[0048] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0049] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0050] Example 1, please refer to Figure 5A dual-mode conversion TBM anchor fixing device, wherein a circular groove 715 and a tooth groove 716 are provided at one end of a drill pipe 71, the tooth groove 716 is located above the circular groove 715, an annular protrusion 73 is slidably connected in the circular groove 715 for cooperating with a ratchet 734 to control the rotation of the drill bit 74, a ratchet groove 731 is provided on the side wall of the annular protrusion 73 for accommodating the ratchet 734, semicircular blocks 732 are fixedly connected to the upper and lower outer walls of the ratchet groove 731, a rotating shaft 733 is rotatably connected between the semicircular blocks 732, a ratchet 734 is sleeved on the outer wall of the rotating shaft 733, a torsion spring 735 is fixedly connected between the ratchet 734 and the rotating shaft 733 for cooperating with the ratchet 734 to automatically reset and always keep the ratchet 734 engaged with the tooth groove 716;

[0051] Further, such as Figure 5 and Figure 6 As shown, the pawl 734 is meshed with the tooth groove 716 to cooperate with the drill pipe 71 to control the rotation of the annular protrusion 73. One end of the drill pipe 71 is fixedly connected by a screw to a ring cover plate 72 for preventing rock debris and mud from entering the circular groove 715, thereby affecting the operation of the ring pawl 734. The arc-shaped side wall at the upper end of the annular protrusion 73 is symmetrically fixedly connected to a No. 1 axis frame 736. Both ends of the No. 1 axis frame 736 are fixedly connected to a flip shaft 737. One end of the flip shaft 737 is fixedly connected to a No. 2 axis frame 741. The No. 2 axis frame 741 is fixedly connected to the drill bit 74. The drill bit 74 is divided into two semi-conical bodies, which are attracted to each other by magnets provided on the inner wall. A conical groove is provided in the drill bit 74, so that when it is squeezed by the anchor rod, the two parts of the drill bit 74 can be deflected along the flip shaft 737, thereby cooperating with the installation of the anchor rod and increasing the contact area with the mud.

[0052] Example 2 further optimizes the dual-mode conversion TBM anchor fixing device provided in Example 1. Specifically, Figures 2 to 4 As shown, the outer wall of the drill pipe 71 is provided with multiple groups of spiral grooves 711 from top to bottom for cooperating with the first spiral push block 756 and the second spiral push block 751 to slide, the spiral grooves 711 are communicated with the interior of the drill pipe 71, the first spiral push block 756 is slidably arranged inside the spiral grooves 711, and the second spiral push block 751 is arranged inside the four groups of spiral grooves 711 above one end of the drill pipe 71;

[0053] Further, such as Figures 2 to 4As shown, the outer wall of the drill pipe 71 is provided with a connecting rod groove 712 from top to bottom for cooperating with the connecting rod 753 to fix and connect multiple No. 1 spiral push blocks 756, and the connecting rod groove 712 passes through multiple groups of spiral grooves 711. Multiple groups of adjacent No. 1 spiral push blocks 756 are fixedly connected with connecting rods 753 along the axial direction of the drill pipe 71, and the No. 2 spiral push block 751 is fixedly connected with it along the axial direction of the drill pipe 71, and the adjacent No. 1 spiral push blocks 756 are fixedly connected by connecting rods 753, so that the movement states of the multiple No. 1 spiral push blocks 756 are kept consistent, and the width of the connecting rod 753 is smaller than the width of the connecting rod groove 712, so that the connecting rod 753 can slide laterally in the connecting rod groove 712;

[0054] Further, such as Figure 7 and Figure 8 As shown, the interior of the second spiral push block 751 is provided with a rod transfer groove 7511 for cooperating with the transfer rod 752 to pass through the second spiral push block 751, the side wall of the rod transfer groove 7511 is fixedly connected with a sliding protrusion 7512, the interior of the rod transfer groove 7511 is slidably connected with the transfer rod 752, the interior of the transfer rod 752 is provided with a sliding protrusion groove 7521, and the sliding protrusion 7512 is slidably arranged in the sliding protrusion groove 7521. Since the inner wall of the rod transfer groove 7511 is an arc-shaped upward surface, when passing through When the lateral position of the transmission rod 752 is changed to realize that the transmission rod 752 drives the second spiral push block 751 to move upward or downward along the inner wall of the transmission rod groove 7511, the movement trajectory of the second spiral push block 751 should satisfy that it can move upward or downward while maintaining lateral movement. At this time, the sliding protrusion 7512 can be limited upward or downward by the sliding protrusion groove 7521, so that the second spiral push block 751 can move upward or downward while maintaining lateral movement.

[0055] Further, such as Figures 2 to 4 As shown, an L-shaped rod groove 713 is further provided on the outer wall of one end of the drill pipe 71, and the L-shaped rod groove 713 is communicated with the spiral groove 711 adjacent thereto, and one end of the transmission rod 752 is located inside the L-shaped rod groove 713, and one end of the transmission rod 752 is also fixedly connected with an L-shaped rod 754, and the shorter end of the L-shaped rod 754 is located in the L-shaped rod groove 713, and the longer end of the L-shaped rod 754 is fixedly connected with a limiting rod 755 for limiting the spring 757, and the L-shaped rod 754 can drive the transmission rod 752 to move laterally in the L-shaped rod groove 713, and the length between the shorter ends of the two symmetrical L-shaped rods 754 is less than or equal to the diameter of the drill bit 74, so as to prevent the L-shaped rod 754 from affecting the drilling of the drill bit 74;

[0056] Further, such as Figure 2 - Figure 4As shown, a spring groove 714 is also provided on the outer wall of one end of the drill pipe 71, and one end of the limiting rod 755 passes through the outer wall of the drill pipe 71 and the spring groove 714, and is fixedly connected with a wedge block 758, and the lower end face of the wedge block 758 is a wedge-shaped face, so that when it is squeezed in the vertical direction of the anchor rod, it can be subjected to the lateral squeezing force from the anchor rod and move into the spring groove 714, and the outer wall of the limiting rod 755 is sleeved with a spring 757, and the elastic potential energy of the spring 757 is greater than the lateral component of the gravity of multiple No. 1 spiral push blocks 756 and one No. 2 spiral push block 751, so that the No. 1 spiral push block 756 and the No. 2 spiral push block 751 are located inside the drill pipe 71 in the initial state.

[0057] The use process of the dual-mode conversion TBM anchor fixing device provided by the present invention is as follows:

[0058] First, the direction of the drill bit 74 and the drill pipe 71 is adjusted to the position where the hole needs to be drilled by the adjustment device 3, and then, as shown in the attached Figure 5 As shown, the drill pipe 71 is driven to rotate clockwise by driving the feeding device 5, and the drill pipe 71 drives the ratchet 734 to rotate clockwise through the tooth groove 716, and the ratchet 734 drives the annular protrusion 73 to rotate clockwise, and the annular protrusion 73 drives the drill bit 74 to rotate and start drilling. When the drill pipe 71 rotates, the first spiral push block 756 and the second spiral push block 751 begin to move toward the lower end of the spiral groove 711 under the centrifugal force and their own gravity, until the connecting rod 753 moves to the end position of the connecting rod groove 712 away from the axis of the drill pipe 71, the first spiral push block 756 and the second spiral push block 751 no longer move and maintain this state. At this time, the rock debris generated by the drill bit 74 slides along the outer wall of the drill bit 74 to the first spiral push block 756 and the second spiral push block 751, and is pushed out of the hole by the first spiral push block 756 and the second spiral push block 751;

[0059] When the drilling work is completed, the anchor rod needs to be installed. First, the anchor rod is fed into one end of the feeding tube 6 by driving the feeding device 5, and then the drill pipe 71 is controlled to rotate counterclockwise by driving the feeding device 5. At this time, the pawl 734 no longer drives the drill bit 74 to rotate through the tooth groove 716, but the drill pipe 71 rotates on its own, but the speed is much lower than the speed during drilling, so as to avoid jamming when the anchor rod is transported into the hole through the spiral. At this time, the first spiral push block 756 and the second spiral push block 751, without the action of centrifugal force, exert reverse force on the inner wall of the spring groove 714 through the spring 757, The wedge block 758 is pushed toward the outside of the spring groove 714, and the wedge block 758 drives the limiting rod 755 to move toward the other end of the spring groove 714. The limiting rod 755 drives the transmission rod 752 to move horizontally through the L-shaped rod 754. The transmission rod 752 moves along one end of the connecting rod groove 712 toward the end close to the drill pipe 71. At the same time, the sliding protrusion groove 7521 drives the sliding protrusion 7512 to move upward, so that the No. 1 spiral push block 756 and the No. 2 spiral push block 751 are reset. The reset No. 1 spiral push block 756 is engaged with the thread of the outer wall of the anchor rod and transports the anchor rod to one end of the drill bit 74;

[0060] When the end of the anchor rod is squeezed to the wedge surface of the wedge block 758, the wedge block 758 is squeezed into the spring groove 714, so that the first spiral push block 756 and the second spiral push block 751 are squeezed to the outside of the drill pipe 71. At this time, the first spiral push block 756 and the second spiral push block 751 are disengaged from the threads of the outer wall of the anchor rod. The purpose of the disengagement is to prevent the first spiral push block 756 and the second spiral push block 751 from being engaged with the threads of the outer wall of the anchor rod when the drill pipe 71 and the drill bit 74 are squeezed out of the hole, so that they cannot be squeezed out.

[0061] By connecting a mud injector to the end of the anchor rod, the mud injector is a prior art, and the anchor rod is continuously pushed into the hole through the connection end of the mud injector until the end of the anchor rod is squeezed onto the drill bit 74, so that the two parts of the drill bit 74 are flipped outward along the flip axis 737, and the injector begins to inject mud into the hollow groove in the anchor rod, and the mud overflows from the end of the anchor rod and accumulates at the end of the hole, and the continuously injected mud squeezes the flip surface of the drill bit 74, and under the continuous squeezing force of the mud, the drill bit 74 and the drill pipe 71 are squeezed out of the borehole, and the anchor rod is under the resistance of the mud injector, so that the anchor rod will not be squeezed out of the borehole by the reaction force of the mud; a rectangular iron block in the prior art is sleeved on the end of the anchor rod, and a nut is screwed on the thread at the end of the anchor rod, so that the rectangular iron block is tightly fitted to the tunnel wall to prevent mud from overflowing;

[0062] This process further improves the installation efficiency of the anchor rod by allowing the anchor rod to be installed without removing the drill bit 74 and the drill pipe 71. At the same time, it avoids the phenomenon that when the drill pipe 71 is pulled out, the borehole partially collapses due to unstable rock, which leads to drilling failure and the need for re-drilling. This can effectively improve the installation efficiency of the anchor rod and greatly improve the efficiency of the TBM dual-mode conversion.

[0063] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0064] Obviously, the embodiments described above are only some embodiments of the present invention, rather than all embodiments. The preferred embodiments of the present invention are given in the accompanying drawings, but they do not limit the patent scope of the present invention. The present invention can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive. Although the present invention has been described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific embodiments, or to perform equivalent replacements for some of the technical features therein. Any equivalent structure made using the contents of the specification and drawings of the present invention, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the present invention.

Claims

1. A dual-mode conversion TBM anchor fixing device, comprising an annular track (1) arranged around the outside of the TBM main beam, an adjustment device (3) slidably arranged on the annular track (1), a bracket (4) arranged on one side of the adjustment device (3), and a driving feeding device (5) arranged above the bracket (4), characterized in that: A feeding pipe (6) is provided between the adjusting device (3) and the driving feeding device (5), and a drilling device (7) is provided on one side of the feeding pipe (6); The drilling device (7) comprises a drill pipe (71) fixedly connected to one end of a feeding pipe (6); a drill bit (74) is provided at one end of the drill pipe (71); the drill bit (74) is driven by a driving feeding device (5); the outer wall of the drill pipe (71) is provided with a first spiral push block (756) for discharging rock debris from the drill hole; the drilling radius of the drill bit (74) is equal to the sum of the radius of the drill pipe (71) and the length of the first spiral push block (756) perpendicular to the drill pipe (71); The drilling device (7) can realize automatic delivery of the anchor rod into the drill hole without removing the drill pipe (71) through structural transformation.

2. A dual-mode conversion TBM anchor fixing device according to claim 1, characterized in that: A circular groove (715) and a tooth groove (716) are formed at one end of the drill pipe (71), and the tooth groove (716) is located above the circular groove (715).

3. A dual-mode conversion TBM anchor fixing device according to claim 2, characterized in that: An annular protrusion (73) is slidably connected in the circular groove (715), a pawl groove (731) is provided on the side wall of the annular protrusion (73), semicircular blocks (732) are fixedly connected to the upper and lower outer side walls of the pawl groove (731), a rotating shaft (733) is rotatably connected between the semicircular blocks (732), a pawl (734) is sleeved on the outer wall of the rotating shaft (733), and a torsion spring (735) is fixedly connected between the pawl (734) and the rotating shaft (733).

4. A dual-mode conversion TBM anchor fixing device according to claim 3, characterized in that: The ratchet pawl (734) is meshed with the tooth groove (716), and one end of the drill pipe (71) is fixedly connected to the annular cover plate (72) by means of screws.

5. A dual-mode conversion TBM anchor fixing device according to claim 4, characterized in that: The arc-shaped side wall at the upper end of the annular protrusion (73) is symmetrically fixedly connected to a first shaft frame (736), both ends of the first shaft frame (736) are fixedly connected to a flip shaft (737), one end of the flip shaft (737) is fixedly connected to a second shaft frame (741), the second shaft frame (741) is fixedly connected to a drill bit (74), the drill bit (74) is divided into two semi-conical parts, and the two parts are attracted to each other by magnets provided on the inner side walls, and a conical groove is provided in the drill bit (74).

6. A dual-mode conversion TBM anchor fixing device according to claim 5, characterized in that: The outer wall of the drill pipe (71) is provided with a plurality of groups of spiral grooves (711) from top to bottom, the spiral grooves (711) are communicated with the interior of the drill pipe (71), the first spiral push block (756) is slidably arranged inside the spiral grooves (711), and the interiors of the four groups of spiral grooves (711) above one end of the drill pipe (71) are provided with a second spiral push block (751).

7. A dual-mode conversion TBM anchor fixing device according to claim 6, characterized in that: The outer wall of the drill pipe (71) is provided with a connecting rod groove (712) from top to bottom, and the connecting rod groove (712) passes through multiple groups of the spiral grooves (711). Multiple groups of adjacent No. 1 spiral push blocks (756) are fixedly connected by connecting rods (753) along the axial direction of the drill pipe (71), and the No. 2 spiral push block (751) and the adjacent No. 1 spiral push blocks (756) are fixedly connected by connecting rods (753) along the axial direction of the drill pipe (71).

8. The dual-mode conversion TBM anchor fixing device according to claim 7, characterized in that: The second spiral push block (751) is provided with a transmission rod groove (7511) inside, a sliding protrusion (7512) is fixedly connected to the side wall of the transmission rod groove (7511), a transmission rod (752) is slidably connected inside the transmission rod groove (7511), a sliding protrusion groove (7521) is provided inside the transmission rod (752), and the sliding protrusion (7512) is slidably arranged in the sliding protrusion groove (7521).

9. The dual-mode conversion TBM anchor fixing device according to claim 8, characterized in that: An L-shaped rod groove (713) is further provided on the outer wall of one end of the drill pipe (71), and the L-shaped rod groove (713) is communicated with the spiral groove (711) adjacent thereto. One end of the transmission rod (752) is located inside the L-shaped rod groove (713), and one end of the transmission rod (752) is further fixedly connected to an L-shaped rod (754), and the shorter end of the L-shaped rod (754) is located inside the L-shaped rod groove (713), and the longer end of the L-shaped rod (754) is fixedly connected to a limiting rod (755).

10. A dual-mode conversion TBM anchor fixing device according to claim 9, characterized in that: The outer wall of one end of the drill pipe (71) is also provided with a spring groove (714), one end of the limit rod (755) passes through the outer wall of the drill pipe (71) and the spring groove (714), and is fixedly connected with a wedge block (758), and the outer wall of the limit rod (755) is sleeved with a spring (757).

Images