Anchor rod construction device of open-type TBM

Abstract

The invention discloses an anchor rod construction device of an open-type TBM, and belongs to the technical field of tunnels and underground engineering in civil engineering. An anchor rod construction device of an open-type TBM is arranged on a TBM body and used for changing the position of an anchor rod drilling machine, the anchor rod construction device comprises an arc-shaped rail, a sliding part and a driving unit, the arc-shaped rail is fixed to the TBM body, an arc-shaped groove is formed in the side face of the arc-shaped rail, the arc-shaped groove is provided with a rotating center line, and the rotating center line of the arc-shaped groove coincides with the center line of a tunnel; the sliding piece is arranged in the arc-shaped groove in a sliding mode, and the anchor rod drilling machine is fixedly arranged on the sliding piece in the radial direction of the arc-shaped groove and used for driving anchor rods in the radial direction of the tunnel. And the moving unit is controlled to drive the jumbolter to move in the radian direction of the arc-shaped track, so that the included angle between the drilling direction of the jumbolter and the normal direction of the tunnel contour line is reduced, even the direction of drilling the anchor rod by the jumbolter coincides with the radius of the tunnel, the anchoring effect of the anchor rod is improved, and the device is suitable for reinforcing and supporting the tunnel.

Description

Technical Field

[0001] The invention relates to the technical field of tunnels and underground engineering in civil engineering, and in particular to an anchor rod construction device of an open TBM. Background Art

[0002] TBM includes open tunnel boring machines and shield tunnel boring machines. It includes parallel and continuous construction processes such as excavation, support, and slag discharge. It is a factory-based assembly line tunnel construction equipment that integrates mechanical, electrical, hydraulic, optical, and gas systems. It has the advantages of fast excavation speed, environmental protection, and high comprehensive benefits. It can realize the construction of deep-buried long tunnels in complex geographical features that are difficult to achieve with traditional drilling and blasting methods.

[0003] The best anchoring effect can be achieved when the drilling direction of the anchor in the tunnel is perpendicular to the tunnel contour line. In the design, the anchor is also set along the normal direction. However, in actual construction, especially in small tunnels, the installation structure of the existing anchor drilling rig makes a large angle between the drilling direction of the anchor and the normal direction of the tunnel contour line, resulting in poor anchoring effect. Summary of the invention

[0004] The purpose of the present invention is to overcome the problems in the prior art and provide an anchor construction device for an open TBM, which can reduce the angle between the drilling direction of the anchor drill and the normal direction of the tunnel contour line, thereby improving the anchoring effect of the anchor.

[0005] The present invention provides an anchor construction device for an open-type TBM, which is arranged on a TBM body and is used to change the position of an anchor drill, comprising: an arc track, a sliding member and a driving unit, wherein the arc track is fixed on the TBM body, an arc groove is provided on the side of the arc track, the arc groove has a rotation center line, and the rotation center line of the arc groove coincides with the center line of the tunnel; the sliding member is slidably arranged in the arc groove, and the anchor drill is fixedly arranged on the sliding member along the radial direction of the arc groove, and is used to drive anchors in the radial direction of the tunnel; the driving unit comprises a first motor and a gear-arc rack pair, an arc rack is provided on the outer edge of the arc track, and the arc rack is meshed with a gear to form the gear-arc rack pair; the first motor is fixed to the sliding member, and the output end of the first motor is fixedly connected to the gear, and is used to drive the gear to rotate, so that the sliding member and the anchor drill move along the arc groove together.

[0006] The rotation center line of the arc groove coincides with the center line of the tunnel, so that the radial direction of the arc groove coincides with the radial direction of the tunnel. The first motor is controlled to rotate forward or reversely, and the first motor drives the gear to engage the arc rack, so that the sliding part moves along the arc groove, which is used to change the position of the anchor drilling rig when the anchor drilling rig drives the drill rod at different positions and different radial directions on the inner wall of the tunnel.

[0007] Preferably, the first motor is a stepper motor, and the stepper motor has a function of holding torque to prevent the sliding member and the anchor drill from moving when the drill rod is driven.

[0008] Prevent the sliding parts and the anchor drilling rig from moving when drilling the anchor.

[0009] Preferably, the moving trajectory of the sliding member along the arc groove corresponds to the area on the transverse section of the tunnel where anchor rods need to be driven, so that the anchor drill can move along the arc groove to any position within the tunnel area where anchor rods need to be driven.

[0010] Prevent drilling blind spots from occurring on the inner wall of the tunnel.

[0011] Preferably, arc grooves are provided on both sides of the arc track, and the sliding member is provided in each arc groove. The two sliding members are fixedly connected to the same moving frame, and only one of the sliding members corresponds to the first motor and the gear. The moving frame is fixedly connected to the first motor, and the gear at the output end of the first motor is meshed with the arc rack.

[0012] The moving frame is made to move stably and synchronously on both sides of the arc track, avoiding the problem of uneven force on the moving frame and both sides.

[0013] Preferably, an electric telescopic rod is fixedly provided at the end of the anchor drilling rig away from the inner wall of the tunnel, and an insertion rod is provided at the end of the electric telescopic rod. The insertion rod is provided with a socket, and the insertion rod can be inserted into a limiting groove provided on the movable frame, and a through hole is provided in the limiting groove. The through hole and the socket are jointly penetrated by the same limiting rod to prevent the electric telescopic rod from detaching from the movable frame.

[0014] The purpose is to use the limit rod to limit the insertion rod at the end of the electric telescopic rod in the limit groove, so as to install the electric telescopic rod on the mobile frame. The electric telescopic rod is used to move the anchor drilling rig along the radius of the tunnel.

[0015] Preferably, a second motor is fixedly provided at the end of the electric telescopic rod away from the movable frame, and an output end of the second motor is fixedly connected to a rotating plate, and the rotating plate is fixedly connected to the anchor drilling rig.

[0016] The rotation of the second motor can drive the rotating plate and the anchor drill to rotate together, thereby achieving the purpose of adjusting the angle of the anchor drill.

[0017] Preferably, the arc track includes a first sub-track and a second sub-track, a convex plate is provided at the end of the first sub-track, a circular hole is provided on the convex plate, a groove is provided on the second sub-track, a positioning hole is provided on the side wall of the groove, the convex plate can extend into the groove, and the circular hole and the positioning hole are jointly inserted with the same positioning rod to connect the first sub-track and the second sub-track into a whole.

[0018] The purpose is to install the first sub-track and the second sub-track from both sides of the TBM body, and at the same time enable the first sub-track and the second sub-track to form an arc track.

[0019] Preferably, the first sub-rail and the second sub-rail are fixedly provided with ear plates at the ends away from the positioning rod, and the ear plates are provided with a plurality of first bolt holes, and the TBM body is provided with second bolt holes corresponding to the first bolt holes, and each of the first bolt holes and the corresponding second bolt holes is matched with a bolt for fixing the first sub-rail and the second sub-rail on the TBM body.

[0020] The purpose is to fix the first sub-track and the second sub-track on the TBM body.

[0021] Preferably, the anchor drilling machine is provided with limit plates on opposite sides, each of the limit plates is fixedly connected to the end of the electric telescopic rod, and the relative plate surfaces of the two limit plates are slidably connected to the rotating plate.

[0022] The two limit plates can prevent the rotating plate from causing the bolter to tilt.

[0023] Compared with the prior art, the beneficial effects of the present invention are: the rotation center line of the arc groove coincides with the center line of the tunnel, so that the radial direction of the arc groove coincides with the radial direction of the tunnel, and the first motor is controlled to rotate forward or reversely. The first motor drives the gear to engage the arc rack, so that the sliding part moves along the arc groove, which is used to change the position of the anchor drilling rig when the anchor drilling rig drives drill rods at different positions and different radial directions on the inner wall of the tunnel.

[0024] The anchor drill moves along the arc direction of the arc groove, which reduces the angle between the drilling direction of the anchor drill and the normal direction of the tunnel contour line. The direction of the anchor drill even coincides with the radial direction of the tunnel, which improves the anchoring effect of the anchor and is suitable for reinforcing and supporting the tunnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the present invention;

[0026] Figure 2 It is a partial schematic diagram of the present invention;

[0027] Figure 3 is a schematic diagram of a mobile rack of the present invention;

[0028] Figure 4 It is a schematic diagram of the assembly of the first motor of the present invention;

[0029] Figure 5 It is a schematic diagram of the use of the anchor drilling machine of the present invention;

[0030] Figure 6 It is a schematic diagram of the action of the anchor drilling rig of the present invention.

[0031] Description of reference numerals:

[0032] 2. Arc track, 3. Anchor drill, 4. Arc rack, 5. Arc slot, 6. Mobile frame, 7. First motor, 8. Gear, 9. Electric telescopic rod, 10. Insert rod, 11. Limit slot, 12. Second motor, 13. Positioning rod, 14. Ear plate, 15. Rotating plate, 16. Limit plate, 21. First sub-track, 22. Second sub-track. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] Unless otherwise defined, the technical or scientific terms used herein shall have the usual meanings understood by persons of ordinary skill in the field to which the present invention belongs. "Include" or "comprises" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Inside", "outside", "upper", "lower", "far", "near", "front", "back", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0035] The drawings in this disclosure are not drawn strictly according to the actual scale, and the specific size and quantity of each structure can be determined according to actual needs. The drawings described in this disclosure are only schematic diagrams of the structures.

[0036] The anchor construction device of the open TBM of the present invention is arranged on the TBM body and is used to change the position of the anchor drill rig 3, such as Figure 1-Figure 6It includes: an arc track 2, a sliding member and a driving unit. The arc track 2 is fixed on the TBM body. An arc groove 5 is provided on the side of the arc track 2. The arc groove 5 has a rotation center line, and the rotation center line of the arc groove 5 coincides with the center line of the tunnel. The sliding member is slidably arranged in the arc groove 5. The anchor drill rig 3 is fixedly arranged on the sliding member along the radial direction of the arc groove 5, and is used to drive anchors in the radial direction of the tunnel. The driving unit includes a first motor 7 and a gear-arc rack pair. An arc rack 4 is provided on the outer edge of the arc track 2. The arc rack 4 is meshed with a gear 8 to form the gear-arc rack pair. The first motor 7 is fixed to the sliding member, and the output end of the first motor 7 is fixedly connected to the gear 8, which is used to drive the gear 8 to rotate, so that the sliding member and the anchor drill rig 3 move along the arc groove 5 together.

[0037] The rotation center line of the arc groove 5 coincides with the center line of the tunnel, so that the radial direction of the arc groove 5 coincides with the radial direction of the tunnel, and the first motor 7 is controlled to rotate forward or reversely. The first motor 7 drives the gear 8 to engage the arc rack 4, so that the sliding part moves along the arc groove 5, which is used to change the position of the anchor drilling rig 3 when the anchor drilling rig 3 drives the drill rod at different positions and different radial directions on the inner wall of the tunnel.

[0038] The anchor drill 3 moves along the curvature direction of the arc groove 5, so that the angle between the drilling direction of the anchor drill 3 and the normal line of the tunnel contour line (the normal line coincides with the radial direction of the tunnel) is reduced, and even the direction of the anchor drill 3 drilling the anchor coincides with the radial direction of the tunnel, which improves the anchoring effect of the anchor and is suitable for reinforcing and supporting the tunnel.

[0039] In this embodiment, the first motor 7 is a stepper motor, and the stepper motor has a function of holding torque to prevent the sliding member and the anchor drill rig 3 from moving when the drill rod is driven.

[0040] Prevent the sliding member and the anchor drilling machine 3 from moving when drilling the anchor.

[0041] In this embodiment, the moving trajectory of the sliding member along the arc groove 5 corresponds to the area where anchor rods need to be installed on the cross section of the tunnel, so that the anchor drilling rig 3 can move along the arc groove 5 to any position within the tunnel area where anchor rods need to be installed.

[0042] Prevent drilling blind spots from occurring on the inner wall of the tunnel.

[0043] In this embodiment, Figure 1 Arc grooves 5 are provided on both sides of the arc track 2, and the sliding members are provided in each arc groove 5. The two sliding members are fixedly connected to the same moving frame 6, and only one of the sliding members corresponds to the first motor 7 and the gear 8. The moving frame 6 is fixedly connected to the first motor 7, and the gear 8 at the output end of the first motor 7 is meshed with the arc rack 4.

[0044] The moving frame 6 can be stably and synchronously moved on both sides of the arc track 2, avoiding the problem of uneven force on the moving frame 6 and the two sides.

[0045] In this embodiment, Figure 1-Figure 6 An electric telescopic rod 9 is fixedly provided at the end of the anchor drilling rig 3 away from the inner wall of the tunnel, and an insertion rod 10 is provided at the end of the electric telescopic rod 9. The insertion rod 10 is provided with a socket. The insertion rod 10 can be inserted into a limiting groove 11 provided on the movable frame 6, and a through hole is provided in the limiting groove 11. The through hole and the socket are jointly penetrated by the same limiting rod to prevent the electric telescopic rod 9 from detaching from the movable frame 6.

[0046] The purpose is to use the limiting rod to limit the insertion rod 10 at the end of the electric telescopic rod 9 in the limiting groove 11, so as to install the electric telescopic rod 9 on the mobile frame 6. The electric telescopic rod 9 is used to move the anchor drilling machine 3 along the radius of the tunnel.

[0047] In this embodiment, Figure 4-Figure 5 A second motor 12 is fixedly provided at the end of the electric telescopic rod 9 away from the moving frame 6 , and a rotating plate 15 is fixedly connected to the output end of the second motor 12 , and the rotating plate 15 is fixedly connected to the anchor drilling machine 3 .

[0048] The second motor 12 rotates to drive the rotating plate 15 and the anchor drill 3 to rotate together, thereby achieving the purpose of adjusting the angle of the anchor drill 3.

[0049] In this embodiment, Figure 1-Figure 2 The arc track 2 includes a first sub-track 21 and a second sub-track 22. A convex plate is provided at the end of the first sub-track 21, and a circular hole is provided on the convex plate. A groove is provided on the second sub-track 22, and a positioning hole is provided on the side wall of the groove. The convex plate can extend into the groove. The circular hole and the positioning hole are jointly inserted with the same positioning rod 13 to connect the first sub-track 21 and the second sub-track 22 into a whole.

[0050] The purpose is to install the first sub-track 21 and the second sub-track 22 from both sides of the TBM body, and at the same time enable the first sub-track 21 and the second sub-track 22 to form an arc track 2.

[0051] In this embodiment, Figure 2 The ends of the first sub-rail 21 and the second sub-rail 22 away from the positioning rod 13 are fixed with ear plates 14, and the ear plates 14 are provided with multiple first bolt holes. The TBM body is provided with second bolt holes corresponding to the first bolt holes, and each of the first bolt holes and the corresponding second bolt holes is matched with a bolt for fixing the first sub-rail 21 and the second sub-rail 22 on the TBM body.

[0052] The purpose is to fix the first sub-track 21 and the second sub-track 22 on the TBM body.

[0053] In this embodiment, Figure 5-Figure 6 Limiting plates 16 are provided on opposite sides of the anchor drill rig 3 , and each of the limiting plates 16 is fixedly connected to the end of the electric telescopic rod 9 , and the relative plate surfaces of the two limiting plates 16 are slidably connected to the rotating plate 15 .

[0054] The two limit plates 16 can prevent the rotating plate 15 from driving the anchor drill rig 3 to tilt.

[0055] The method of using the anchor construction device of this open TBM is as follows:

[0056] First, shorten the electric telescopic rod 9 and install the anchor on the anchor drilling machine 3;

[0057] Then, the first motor 7 is controlled to rotate so that the anchor drill rig 3 moves to a suitable position, and then the first motor 7 is controlled to stop rotating and maintain the torque;

[0058] Next, the electric telescopic rod 9 is controlled to extend so that the end of the anchor rod on the anchor drill 3 is close to the drilling point. If the anchor drill 3 deviates from the drilling point, the second motor 12 is controlled to rotate forward or reverse to adjust the position.

[0059] Finally, the anchor drilling machine 3 is controlled to start, and the anchor is drilled into the inner wall of the tunnel, and a process of drilling and installing the anchor is completed.

[0060] The above shows and describes the basic principles, main features and advantages of the present invention. Technical personnel in this industry should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An anchor construction device for an open TBM, arranged on the TBM body, for changing the position of an anchor drill (3), characterized in that: include: The arc track (2) is fixed on the TBM body, and the side of the arc track (2) is provided with an arc groove (5), wherein the arc groove (5) has a rotation center line, and the rotation center line of the arc groove (5) coincides with the center line of the tunnel; A sliding member is slidably arranged in the arc-shaped groove (5), and the anchor drilling machine (3) is fixedly arranged on the sliding member along the radial direction of the arc-shaped groove (5) and is used for driving anchors in the radial direction of the tunnel; The driving unit comprises a first motor (7) and a gear-arc rack pair, wherein an arc rack (4) is provided on the outer edge of the arc track (2), and the arc rack (4) is meshed with a gear (8) to form the gear-arc rack pair; the first motor (7) is fixed to a sliding member, and an output end of the first motor (7) is fixedly connected to the gear (8) for driving the gear (8) to rotate, so that the sliding member and the anchor drill (3) move along the arc groove (5) together.

2. The anchor bolt construction device of the open TBM according to claim 1, characterized in that: The first motor (7) is a stepping motor, and the stepping motor has a function of retaining torque, so as to prevent the sliding part and the anchor drilling machine (3) from moving when the drill rod is driven.

3. The anchor bolt construction device of the open TBM according to claim 1, characterized in that: The moving trajectory of the sliding member along the arc groove (5) corresponds to the area on the transverse section of the tunnel where anchor rods need to be installed, so that the anchor drilling machine (3) can move along the arc groove (5) to any position within the tunnel area where anchor rods need to be installed.

4. The anchor bolt construction device of the open TBM according to claim 1, characterized in that: Both sides of the arc track (2) are provided with arc grooves (5), and each arc groove (5) is provided with a sliding member, and the two sliding members are fixedly connected to the same moving frame (6), and only one of the sliding members corresponds to the first motor (7) and the gear (8), and the moving frame (6) is fixedly connected to the first motor (7), and the gear (8) at the output end of the first motor (7) is meshed with the arc rack (4).

5. The anchor bolt construction device of the open TBM according to claim 4, characterized in that: An electric telescopic rod (9) is fixedly arranged at the end of the anchor drilling machine (3) away from the inner wall of the tunnel, and an insertion rod (10) is arranged at the end of the electric telescopic rod (9). The insertion rod (10) is provided with a plug hole. The insertion rod (10) can be inserted into a limiting groove (11) provided on the movable frame (6), and a through hole is provided in the limiting groove (11). The through hole and the plug hole are jointly penetrated by the same limiting rod to prevent the electric telescopic rod (9) from detaching from the movable frame (6).

6. The anchor bolt construction device of the open TBM according to claim 5, characterized in that: A second motor (12) is fixedly provided at the end of the electric telescopic rod (9) away from the mobile frame (6); an output end of the second motor (12) is fixedly connected to a rotating plate (15); and the rotating plate (15) is fixedly connected to the anchor drilling machine (3).

7. The anchor bolt construction device of the open TBM according to claim 1, characterized in that: The arc track (2) comprises a first sub-track (21) and a second sub-track (22); a convex plate is provided at the end of the first sub-track (21); a circular hole is provided on the convex plate; a groove is provided on the second sub-track (22); a positioning hole is provided on the side wall of the groove; the convex plate can extend into the groove; the circular hole and the positioning hole are jointly inserted with a positioning rod (13) for connecting the first sub-track (21) and the second sub-track (22) into a whole.

8. The anchor bolt construction device of the open TBM according to claim 7, characterized in that: The ends of the first sub-rail (21) and the second sub-rail (22) away from the positioning rod (13) are fixed with ear plates (14), and the ear plates (14) are provided with a plurality of first bolt holes. The TBM body is provided with second bolt holes corresponding to the first bolt holes, and each of the first bolt holes and the corresponding second bolt holes is matched with a bolt for fixing the first sub-rail (21) and the second sub-rail (22) on the TBM body.

9. The anchor bolt construction device of the open TBM according to claim 6, characterized in that: The anchor drilling machine (3) is provided with limit plates (16) on opposite sides, each of the limit plates (16) is fixedly connected to the end of the electric telescopic rod (9), and the relative plate surfaces of the two limit plates (16) are slidably connected to the rotating plate (15).

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