Shield in-ground docking device for maintaining surrounding rock stability with advanced grouting

Abstract

A shield tunneling in - medium docking and surrounding - rock - stability - maintaining advanced grouting device, which relates to the technical field of advanced grouting in shield construction. The rotating seat driving mechanism rotates the rotating seat to the installation position relative to the support seat under the action of the rotating connection mechanism. Under the action of the inserting rod driving mechanism, the inserting rod moves inwards, and the inserting rod is in a hidden state relative to the mounting seat. The advanced drill is placed at the mounting seat. Then, the rotating seat driving mechanism rotates the rotating seat away from the installation position, and the inserting rod driving mechanism drives the inserting rod to extend outwards and insert into the shaft connection mechanism of the advanced drill to realize the rotational connection between the advanced drill and the mounting seat. The rotating seat driving mechanism drives the rotating seat to rotate to the corresponding advanced grouting pipe, and the angle driving mechanism drives the advanced drill to rotate relative to the mounting seat, and the pitching angle is adjusted to facilitate the operation of the advanced drill. The rapid installation operation of the advanced drill is realized, and the operation efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of shield construction advanced grouting, and particularly relates to an advanced grouting device for maintaining the stability of surrounding rock during shield underground docking. Background Technique

[0002] In recent years, with the iteration of shield equipment and the continuous emergence of new processes and new technologies, there are more and more planned cross-river and cross-sea tunnels. The coupling of extreme conditions such as super-large diameter, ultra-high water pressure, and ultra-long distance makes the shield underground docking technology a new trend in the construction of ultra-long distance undersea shield tunnels. The instability of the excavation face in extreme environments will lead to serious property losses and casualties. Therefore, maintaining the stability of the excavation face during shield docking is the key to ensuring the safe construction of undersea shield tunnels.

[0003] When the shield machine is disassembled, the deformation of the surrounding rock increases suddenly when the free face appears, and the settlement change at the arch bottom is the most significant. It is necessary to pre-reinforce the stratum in advance. When performing advanced grouting, it is necessary to install the advanced drill on the rotating seat, and then the rotating seat rotates to drive the advanced drill to rotate to the position of the advanced grouting pipe, so that the advanced drill is aligned with the advanced grouting pipe. However, when fixedly connecting the advanced drill and the rotating seat, multiple bolts are usually used for fixed connection, and at the same time, the angle of the advanced drill needs to be adjusted, and the operation is relatively complicated. In order to achieve the purpose of facilitating the installation of the advanced drill, an advanced grouting device for maintaining the stability of surrounding rock during shield underground docking is provided. Summary of the Invention

[0004] The present invention provides an advanced grouting device for maintaining the stability of surrounding rock during shield underground docking, which is convenient for installing the advanced drill.

[0005] The technical solution adopted by the present invention to overcome its technical problems is:

[0006] An advanced grouting device for maintaining the stability of surrounding rock during shield underground docking includes a cutter head installed at the front end of the shield machine, a fixed frame arranged in the inner cavity of the shield machine, and N advanced grouting pipes evenly spaced along the circumferential direction and installed on the fixed frame. It also includes:

[0007] An installation frame installed in the inner cavity of the shield machine;

[0008] A support seat fixed to the front end of the installation frame. An advanced drill installation position is provided on the support seat, and no advanced grouting pipe is provided at the front end of the advanced drill installation position;

[0009] A rotating seat in a circular ring structure, which is rotationally installed at the front end of the support seat through a rotational connection mechanism, and the axis of the rotating seat is arranged in the horizontal direction;

[0010] A rotating seat driving mechanism arranged in the support seat for driving the rotating seat to rotate;

[0011] The mounting seat is vertically arranged on the rotating seat. A sealed cavity is arranged inside the mounting seat, and inserting rods are slidably inserted horizontally at the left and right ends of the cavity respectively.

[0012] The advanced drill has a shaft connection mechanism arranged at its lower end.

[0013] The inserting rod driving mechanism is arranged in the rotating seat and is used to drive the inserting rod to slide horizontally. When the rotating seat rotates to the installation position, the inserting rod driving mechanism drives the inserting rod to move inwards into the cavity. When the rotating seat rotates away from the installation position, the inserting rod driving mechanism drives the inserting rod to extend outwards and insert into the shaft connection mechanism of the advanced drill to realize the rotational connection between the advanced drill and the mounting seat, and

[0014] The angle driving mechanism is arranged on the mounting seat and is used to adjust the elevation angle of the initial state of the advanced drill to the horizontal direction.

[0015] Furthermore, the above-mentioned rotational connection mechanism includes a flange arranged along the circumferential direction at the front end of the support seat and a chute Ⅰ arranged along the circumferential direction on the inner wall of the rotating seat and matching with the flange, and the flange is embedded in the chute Ⅰ.

[0016] Furthermore, the above-mentioned rotating seat driving mechanism includes a motor Ⅰ installed in the support seat, a gear Ⅰ coaxially installed on the output shaft of the motor Ⅰ, and an internal gear arranged along the circumferential direction in the rotating seat. The axis of the motor Ⅰ is arranged horizontally, the internal gear is coaxially arranged with the rotating seat, and the gear Ⅰ meshes with the internal gear.

[0017] Furthermore, the installation position of the above-mentioned advanced drill is at the bottom of the support seat.

[0018] Furthermore, the above-mentioned shaft connection mechanism includes support rods respectively arranged vertically on the left and right sides at the bottom of the advanced drill. A gear Ⅱ is arranged at the bottom of the support rod. The axis of the gear Ⅱ is arranged horizontally. The gear Ⅱ is axially provided with a mounting hole, and the inner diameter of the mounting hole matches the outer diameter of the inserting rod. When the rotating seat rotates to the installation position, the two gear Ⅱs are respectively placed on the left and right sides of the mounting seat. When the rotating seat rotates away from the installation position, the inserting rod driving mechanism drives the inserting rod to extend outwards and insert into the mounting holes of the corresponding gear Ⅱs on the same side.

[0019] Further, the above-mentioned plug driving mechanism includes a sliding rod horizontally installed in the cavity, two sliding plates, a chute II vertically arranged in the mounting seat, and a slider slidably installed in the chute II. The axis of the sliding rod is horizontally arranged in the left-right direction. The sliding plates are slidably installed on the sliding rod along the axial direction of the sliding rod. The inner end of the plug is fixed to the outer end of the corresponding sliding plate on the same side. Link rods are respectively hinged and installed on the left and right sides of the upper end of the slider. The head end of the link rod is hinged and connected to the corresponding sliding plate on the same side. Spring I is located in the chute II. The axial direction of Spring I is vertically arranged. One end of Spring I is connected to the mounting seat, and the other end is connected to the slider. When Spring I is in the free state, the slider moves down to the lowest position, the sliding plates slide inwards to retract the plug into the cavity, and the outer end face of the plug is located inside the side end face of the mounting seat. When the rotating seat rotates away from the mounting position, the synchronous driving mechanism drives the slider to move up, and the sliding plates slide outwards to eject the plug.

[0020] Further, the above-mentioned angle driving mechanism includes a bracket installed on the mounting seat, a rotating shaft I rotatably installed on the bracket, and a motor II installed on the bracket. The axis of the rotating shaft I is horizontally arranged. The rotating shaft I is coaxially driven and connected to the output shaft of the motor II. A gear III is coaxially installed at the head end of the rotating shaft I. When the advanced drill is rotatably connected to the mounting seat through the shaft connection mechanism, the gear III meshes with the gear II.

[0021] Further, the above-mentioned synchronous driving mechanism includes a chute III vertically arranged at the bottom of the mounting seat, a push rod slidably installed in the chute III in the vertical direction, a rack I horizontally installed at the bottom of the push rod, a chute VI horizontally arranged in the rotating seat, a rack II slidably installed in the chute VI, and a pressing rod slidably inserted in the rotating seat in the vertical direction. A gear V is rotatably installed in the rotating seat. The gear V is located between the rack I and the rack II. The upper end of the gear V meshes with the rack I, and the lower end of the gear V meshes with the rack II. A guiding inclined surface III is provided at the head end of the push rod. The lower end of the slider is in sliding friction contact with the guiding inclined surface III. Spring III is horizontally arranged. One end of Spring III is connected to the rotating seat, and the other end is connected to the push rod. A guiding inclined surface IV is provided at the head end of the rack II. The head end of the pressing rod is in sliding friction contact with the guiding inclined surface IV. An arc chamfer is provided at the lower end of the pressing rod. An arc-shaped arc plate is horizontally installed at the head end of the support seat. When the rotating seat rotates to the mounting position, the arc chamfer of the pressing rod is in sliding friction contact with the arc surface of the arc plate, and the pressing rod is pushed upwards by the extrusion force to push the rack II to slide through the guiding inclined surface IV. The gear V drives the rack I to slide in the reverse direction and compresses Spring III. Spring I pulls the slider to move downwards. When Spring III is in the free state, it pushes the push rod to move to drive the slider to move up through the guiding inclined surface III and stretch Spring I.

[0022] In order to achieve the locking of the advanced drilling rig connection, it also includes a pushing frame arranged at the outer end of the slider in the horizontal direction, a slide groove IV arranged in the pushing frame in the horizontal direction, a vertical plate slidably installed in the slide groove IV through a slide rail, a slide groove V arranged in the vertical plate in the vertical direction, a fixed block slidably installed in the slide groove V, and a pressing block horizontally inserted in the vertical plate. The front end of the mounting seat is provided with a card slot matching the vertical plate, the lower end of the card slot is provided with a slot, the upper end of the fixed block is provided with a guide inclined surface I, and the lower end thereof is provided with a guide inclined surface II. A spring II is arranged in the slide groove V, the upper end of which is connected with the vertical plate, and the lower end thereof is connected with the fixed block. The guide inclined surface I is in sliding frictional contact with the inner side end of the pressing block. When the slider moves up to the upper dead point position, the vertical plate is pushed into the card groove, and the spring II pushes the lower end of the fixed block to insert into the slot. When the pressing block is pushed inward, the pressing block drives the fixed block to move up through the guide inclined surface I to disengage from the slot and compress the spring II.

[0023] In order to lock the position of the advance drilling rig, it also includes N positioning seats arranged on the outer wall of the support seat along the circumferential direction, positioning grooves arranged in the positioning seats along the horizontal direction, a positioning plate slidably installed in the rotating seat along the horizontal direction, and a rotating shaft II rotatably installed in the rotating seat. The size of the positioning plate matches the positioning groove, and the side end of the positioning plate is provided with a plurality of tooth grooves along its length. A bevel gear I is installed on the rotating shaft I, a bevel gear II is installed on the upper end of the rotating shaft II, and a gear IV is installed on the lower end of the rotating shaft II. The bevel gear I is meshed with the bevel gear II, and the gear IV is meshed with the tooth groove of the positioning plate. When the rotating seat rotates to the point where the advance drilling rig is facing a front grouting pipe and the motor II rotates to adjust the angle of the advance drilling rig in the horizontal direction, the positioning plate extends from the rotating seat and is inserted into the positioning groove of the corresponding positioning seat.

[0024] The beneficial effects of the present invention are:

[0025] 1. When installing the advance drilling rig, the advance drilling rig is transported to the installation position by means of transportation equipment, the rotating seat driving mechanism rotates the rotating seat away from the installation position, and the plug-in rod driving mechanism drives the plug-in rod to extend outward and insert into the shaft connection mechanism of the advance drilling rig to realize the rotational connection between the advance drilling rig and the installation seat, thereby realizing the rapid installation of the advance drilling rig.

[0026] 2. The angle driving mechanism drives the advance drilling rig to rotate relative to the mounting seat, and the advance drilling rig is conveniently adjusted to align with the corresponding advance grouting pipe by adjusting its pitch angle, thereby improving the convenience of adjusting the angle of the advance drilling rig. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a three-dimensional structural diagram of the present invention in use;

[0028] Figure 2 It is a structural schematic diagram of the rotating seat part of the present invention;

[0029] Figure 3 Structural schematic diagram of the mounting seat part of the present invention;

[0030] Figure 4 Cross-sectional structure diagram of the mounting seat part of the present invention;

[0031] Figure 5 Structural diagram of the locking mechanism part of the present invention;

[0032] Figure 6 Cross-sectional structure diagram of the vertical plate part of the present invention;

[0033] Figure 7 Installation schematic diagram of the positioning seat of the present invention;

[0034] Figure 8 is Figure 7 Enlarged view of part A in

[0035] Figure 9 Structural diagram of the positioning plate part of the present invention;

[0036] In the figure, 1. Shield machine, 2. Cutter head, 3. Fixed frame, 4. Advanced grouting pipe, 5. Installation frame, 6. Rotating seat, 7. Advanced drill, 8. Mounting seat, 9. Positioning seat, 10. Support seat, 11. Motor I, 12. Gear I, 13. Flange, 14. Slide groove I, 15. Internal gear, 16. Support rod, 17. Gear II, 18. Installation hole, 19. Bracket, 20. Motor II, 21. Gear III, 22. Plug rod, 23. Cavity, 24. Slide groove II, 25. Slide rod, 26. Slide plate, 27. Slide block, 28. Pushing frame, 29. Link rod, 30. Vertical plate, 31. Rotating shaft I, 32. Bevel gear I, 33. Rotating shaft II, 34. Gear IV, 35. Spring I, 36. Bevel gear II, 37. Slide groove III, 38. Card slot, 39. Pressing block, 40. Slot, 41. Slide groove IV, 42. Slide rail, 43. Slide groove V, 44. Spring II, 45. Fixed block, 46. Guide inclined plane I, 47. Guide inclined plane II, 48. Thrust rod, 49. Guide inclined plane III, 50. Rack I, 51. Spring III, 52. Gear V, 53. Slide groove VI, 54. Rack II, 55. Guide inclined plane IV, 56. Extrusion rod, 57. Arc chamfer, 58. Positioning plate, 59. Arc-shaped plate, 60. Positioning groove. Detailed implementation manners

[0037] The following further describes the present invention with reference to the attached Figure 1 to the attached Figure 9 drawings.

[0038] As shown in the attached Figure 1As shown in the figure, a shield tunneling face-to-face grouting device for maintaining the stability of surrounding rocks includes a cutter head 2 installed at the front end of a shield machine 1, a fixing frame 3 arranged in the inner cavity of the shield machine 1, and N advanced grouting pipes 4 evenly spaced along the circumferential direction and installed on the fixing frame 3. It further includes: an installation frame 5 installed in the inner cavity of the shield machine 1; a support base 10 fixed to the front end of the installation frame 5, with an advanced drill installation position provided on the support base 10, and no advanced grouting pipe 4 is provided at the front end of the advanced drill installation position; a rotating seat 6 in a circular ring structure, which is rotatably installed at the front end of the support base 10 through a rotating connection mechanism, and the axis of the rotating seat 6 is arranged horizontally; a rotating seat driving mechanism arranged in the support base 10 for driving the rotating seat 6 to rotate; an installation seat 8 arranged vertically on the rotating seat 6, with a sealed cavity 23 provided inside the installation seat 8, and inserting rods 22 are slidably inserted into the left and right ends of the cavity 23 along the horizontal direction respectively; an advanced drill 7, with a shaft connection mechanism provided at its lower end; an inserting rod driving mechanism arranged in the rotating seat 6 for driving the inserting rods 22 to slide horizontally. When the rotating seat 6 rotates to the installation position, the inserting rod driving mechanism drives the inserting rods 22 to move inward into the cavity 23. When the rotating seat 6 rotates away from the installation position, the inserting rod driving mechanism drives the inserting rods 22 to extend outward and insert into the shaft connection mechanism of the advanced drill 7 to realize the rotational connection between the advanced drill 7 and the installation seat 8, and an angle driving mechanism arranged on the installation seat 8 for adjusting the elevation angle of the initial state of the advanced drill 7 to be adjusted towards the horizontal direction. During use, the rotating seat driving mechanism rotates the rotating seat 6 relative to the support base 10 to the installation position under the action of the rotating connection mechanism. Under the action of the inserting rod driving mechanism, the inserting rods 22 move inward, and the inserting rods 22 are in a hidden state relative to the installation seat 8. The advanced drill 7 is placed at the installation seat 8. Then, the rotating seat driving mechanism rotates the rotating seat 6 away from the installation position, and the inserting rod driving mechanism drives the inserting rods 22 to extend outward and insert into the shaft connection mechanism of the advanced drill 7 to realize the rotational connection between the advanced drill 7 and the installation seat 8. The rotating seat driving mechanism drives the rotating seat 6 to rotate to the corresponding advanced grouting pipe 4, and the angle driving mechanism drives the advanced drill 7 to rotate relative to the installation seat 8, and by adjusting its pitching angle, the operation of the advanced drill 7 is facilitated. The rapid installation operation of the advanced drill 7 is realized, and the operation efficiency is improved.

[0039] In an embodiment of the present invention, as shown in the attached Figure 2 figure, the rotating connection mechanism includes a flange 13 arranged along the circumferential direction at the front end of the support base 10 and a chute Ⅰ 14 arranged along the circumferential direction on the inner wall of the rotating seat 6 and matching with the flange 13, and the flange 13 is embedded in the chute Ⅰ 14. The rotating seat 6 realizes rotational connection with the flange 13 of the support base 10 through the chute Ⅰ 14, with a simple structure and reliable operation.

[0040] In an embodiment of the present invention, as shown in the attached Figure 2As shown in the figure, the rotating seat driving mechanism includes a motor I 11 installed in the support seat 10, a gear I 12 coaxially installed on the output shaft of the motor I 11, and an internal gear 15 arranged in the rotating seat 6 along the circumferential direction. The axis of the motor I 11 is arranged horizontally, the internal gear 15 is coaxially arranged with the rotating seat 6, and the gear I 12 meshes with the internal gear 15. The motor I 11 rotates to drive the gear I 12 to rotate. Since the gear I 12 meshes with the internal gear 15, the rotating seat 6 is driven to rotate, so that the advanced drill 7 rotates to the corresponding advanced grouting pipe 4.

[0041] In an embodiment of the present invention, the installation position of the advanced drill is located at the bottom of the support seat 10. Connecting the advanced drill 7 to the rotating seat 6 from the bottom of the shield machine 1 is convenient for operation and improves the assembly efficiency.

[0042] In an embodiment of the present invention, as shown in the attached Figure 3 figure, the shaft connection mechanism includes support rods 16 respectively arranged on the left and right sides of the bottom of the advanced drill 7 along the vertical direction. A gear II 17 is arranged at the bottom of the support rod 16. The axis of the gear II 17 is arranged horizontally. The gear II 17 is axially provided with an installation hole 18, and the inner diameter of the installation hole 18 matches the outer diameter of the insertion rod 22. When the rotating seat 6 rotates to the installation position, the two gear II 17s are respectively placed on the left and right sides of the installation seat 8. When the rotating seat 6 rotates away from the installation position, the insertion rod driving mechanism drives the insertion rod 22 to extend outward and insert into the installation hole of the corresponding gear II 17 on the same side. By setting the insertion rod driving mechanism to drive the insertion rod 22 to perform axial telescopic movement, the installation hole 18 in the gear II 17 arranged at the lower end of the advanced drill 7 can be quickly shaft-connected, and the installation and disassembly are convenient.

[0043] In an embodiment of the present invention, as shown in the attached Figure 4As shown, the rod driving mechanism includes a slide bar 25 horizontally installed in the cavity 23, two slide plates 26, a slide groove II 24 arranged in the mounting seat 8 along the vertical direction, and a slider 27 slidably installed in the slide groove II 24. The axis of the slide bar 25 is horizontally arranged in the left-right direction, and the slider 26 is slidably installed on the slide bar 25 along the axial direction of the slide bar 25. The inner end of the insertion rod 22 is fixed to the outer end of the corresponding slide plate 26 on the same side. The left and right sides of the upper end of the slider 27 are respectively hingedly installed with connecting rods 29, and the head end of the connecting rod 29 is hingedly connected to the corresponding slide plate 26 on the same side. The spring I 35 is located in the slide groove II 24, and the axial direction of the spring I 35 is arranged in the vertical direction. One end of the spring I 35 is connected to the mounting seat 8, and the other end thereof is connected to the slider 27. When the spring I When 35 is in a free state, the slider 27 moves down to the lower point, and the slide plate 26 slides inwardly to retract the insertion rod 22 into the cavity 23. The outer end surface of the insertion rod 22 is located inside the side end surface of the mounting seat 8. When the rotating seat 6 rotates away from the mounting position, the synchronous drive mechanism drives the slider 27 to move up, and the slide plate 26 slides outwardly to push the insertion rod 22 out. Under normal conditions, spring I 35 makes the slider 27 be in the lowest position, and the slider 27 uses the connecting rod 29 to pull the slide plate 26 to slide toward the inner end. At this time, the insertion rod 22 moves axially inward, and is retracted into the cavity 23 to achieve the hiding of the insertion rod 22 relative to the mounting seat 8, which is convenient for the connection of the advance drilling rig 7. When the rotating seat 6 rotates to the mounting position, the synchronous drive mechanism drives the slider 27 to move upward. When the slider 27 moves upward, the slide plate 26 is driven to move toward the outer end through the connecting rod 29, and the insertion rod 22 extends axially outward until it is inserted into the mounting hole 18 of the corresponding gear II 17 on the same side, thereby realizing the rotational connection between the advance drilling rig 7 and the mounting seat 8.

[0044] In one embodiment of the present invention, as shown in the attached Figure 4 As shown, the angle driving mechanism includes a bracket 19 mounted on the mounting seat 8, a rotating shaft I 31 rotatably mounted on the bracket 19, and a motor II 20 mounted on the bracket 19. The axis of the rotating shaft I 31 is arranged in the horizontal direction. The rotating shaft I 31 is coaxially connected to the output shaft of the motor II 20. The gear III 21 is coaxially mounted on the head end of the rotating shaft I 31. When the advanced drilling machine 7 is rotatably connected to the mounting seat 8 through the shaft connection mechanism, the gear III 21 is meshed with the gear II 17. The motor II 20 rotates to drive the rotating shaft I 31 to rotate, and the rotating shaft I 31 rotates to drive the gear III 21 to rotate. Since the gear III 21 is meshed with the gear II 17, the angle adjustment of the advanced drilling machine 7 is achieved.

[0045] In one embodiment of the present invention, as shown in the attached Figure 8As shown in the figure, the synchronous driving mechanism includes a chute III 37 arranged at the bottom of the mounting seat 8 in the vertical direction, a ejector rod 48 slidably mounted in the chute III 37 in the vertical direction, a rack I 50 mounted at the bottom of the ejector rod 48 in the horizontal direction, a chute VI 53 arranged in the rotating seat 6 in the horizontal direction, a rack II 54 slidably mounted in the chute VI 53, and a pressing rod 56 slidably inserted into the rotating seat 6 in the vertical direction. A gear V 52 is rotatably mounted in the rotating seat 6. The gear V 52 is located between the rack I 50 and the rack II 54. The upper end of the gear V 52 is engaged with the rack I 50, and the lower end of the gear V 52 is engaged with the rack II 54. A guiding inclined surface III 49 is arranged at the head end of the ejector rod 48. The lower end of the slider 27 is in sliding friction contact with the guiding inclined surface III 49. A spring III 51 is arranged in the horizontal direction. One end of the spring III 51 is connected to the rotating seat 6, and the other end is connected to the ejector rod 48. A guiding inclined surface IV 55 is arranged at the head end of the rack II 54. The head end of the pressing rod 56 is in sliding friction contact with the guiding inclined surface IV 55. An arc chamfer 57 is arranged at the lower end of the pressing rod 56. An arc-shaped plate 59 is horizontally mounted at the head end of the support seat 10. When the rotating seat 6 rotates to the installation position, the arc chamfer 57 of the pressing rod 56 is in sliding friction contact with the arc surface of the arc-shaped plate 59, and the pressing rod 56 is pushed upward by the extrusion force to drive the rack II 54 to slide through the guiding inclined surface IV 55. The sliding of the rack II 54 drives the gear V 52 to rotate. The gear V 52 drives the rack I 50 to slide in the reverse direction and compresses the spring III 51. At this time, the ejector rod 48 moves horizontally, and the spring I 35 pulls the slider 27 downward. During the downward movement of the slider 27, its lower end always maintains sliding friction contact with the guiding inclined surface III 49. When the rotating seat 6 rotates away from the installation position, the pressing rod 56 leaves the arc-shaped plate 59, and the spring III 51 releases its elastic force and becomes a free state. Since the elastic force of the spring III 51 is greater than the elastic force of the spring I 35, the spring III 51 pushes the ejector rod 48 to move in the reverse direction. It drives the slider 27 to move upward and stretch the spring I 35 by using the guiding inclined surface III 49. At this time, the gear V 52 synchronously drives the rack II 54 to move in the reverse direction to achieve reset.

[0046] In an embodiment of the present invention, as shown in the attached Figure 5 and attached Figure 6As shown, it also includes a push frame 28 arranged at the outer end of the slider 27 in the horizontal direction, a slide groove IV 41 arranged in the push frame 28 in the horizontal direction, a vertical plate 30 slidably installed in the slide groove IV 41 through a slide rail 42, a slide groove V 43 arranged in the vertical plate 30 in the vertical direction, a fixed block 45 slidably installed in the slide groove V 43, and a pressing block 39 horizontally inserted in the vertical plate 30, a front end of the mounting seat 8 is provided with a card slot 38 matching the vertical plate 30, a slot 40 is provided at the lower end of the card slot 38, a guide slope I 46 is provided at the upper end of the fixed block 45, and a guide slope II 47 is provided at the lower end thereof, a spring II 44 is arranged in the slide groove V 43, an upper end of which is connected to the vertical plate 30, and a lower end of which is connected to the fixed block 45, and a guide slope I 46 is in sliding frictional contact with the inner end of the pressing block 39. When the slider 27 moves up to the top dead center position, the vertical plate 30 is pushed into the slot 38, and the spring II 44 pushes the lower end of the fixing block 45 to be inserted into the slot 40. When the pressing block 39 is pushed inward, the pressing block 39 drives the fixing block 45 to move up through the guide slope I 46 to disengage from the slot 40 and compress the spring II 44. When the advance drilling rig 7 is axially connected with the mounting seat 8, the slider 27 is at the top dead center position, pushing the vertical plate 30 to slide inward along the slide groove IV 41 using the slide rail 42 until the vertical plate 30 is located in the slot 38. Since the lower end of the fixed block 45 is provided with a guide slope II 47, during the inward sliding process of the vertical plate 30, the guide slope II 47 contacts the outer wall of the mounting seat 8 and gradually pushes the fixed block 45 to move upward and compresses the spring II 44. When the vertical plate 30 completely enters the slot 38, the spring II 44 releases the elastic force to move the fixed block 45 downward to insert it into the slot 40. At this time, the vertical plate 30 cannot move laterally. Since the vertical plate 30 limits the slider 27 in the longitudinal direction, the slider 27 cannot move freely in the vertical direction, which can ensure that the insertion rod 22 always remains in an extended state, ensuring the stability of the connection to the advance drilling rig 7. When unlocking is required, the pressing block 39 is driven inward. Since the rear end of the pressing block 39 contacts the guiding inclined surface Ⅰ 46, the pressing block 39 drives the fixing block 45 to move upward and compress the spring Ⅱ 44 by using the guiding inclined surface Ⅰ 46. The lower end of the fixing block 45 is disengaged from the slot 40 to achieve unlocking. At this time, the vertical plate 30 can be pulled outward, and the slider 27 can be moved in the vertical direction, so as to facilitate the removal of the advanced drilling rig 7.

[0047] In one embodiment of the present invention, as shown in the attached Figure 7 and attached Figure 9As shown in the figure, it further includes N positioning seats 9 arranged on the outer wall of the support seat 10 along the circumferential direction, a positioning groove 60 arranged in the positioning seat 9 along the horizontal direction, a positioning plate 58 slidably mounted in the rotating seat 6 along the horizontal direction, and a rotating shaft II 33 rotatably mounted in the rotating seat 6. The size of the positioning plate 58 matches that of the positioning groove 60. A plurality of tooth grooves are arranged at the side end of the positioning plate 58 along its length. A bevel gear I 32 is mounted on the rotating shaft I 31, a bevel gear II 36 is mounted at the upper end of the rotating shaft II 33, and a gear IV 34 is mounted at the lower end of the rotating shaft II 33. The bevel gear I 32 meshes with the bevel gear II 36, and the gear IV 34 meshes with the tooth grooves of the positioning plate 58. When the rotating seat 6 rotates to the position where the advanced drill 7 is exactly opposite to a front grouting pipe 4 and the motor II 20 rotates to adjust the angle of the advanced drill 7 in the horizontal direction, the positioning plate 58 extends out of the rotating seat 6 and inserts into the positioning groove 60 of the corresponding positioning seat 9. When the rotating seat 6 rotates to the position where the advanced drill 7 rotates to the corresponding front grouting pipe 4, the motor II 20 operates, thereby driving the gear III 21 to rotate to adjust the pitching angle of the advanced drill 7 to rotate in the horizontal direction. At the same time, the bevel gear I 32 and the bevel gear II 36 that mesh with each other synchronously drive the rotating shaft II 33 to rotate, so as to drive the positioning plate 58 to slide relative to the rotating seat 6 to insert into the positioning groove 60 of the corresponding positioning seat 9 by using the gear IV 34. At this time, the rotating seat 6 is locked relative to the support seat 10, and the rotating seat 6 cannot rotate, preventing the position of the advanced drill 7 from changing during operation, and further improving the reliability of use.

[0048] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A shield tunneling in-situ docking and surrounding rock stability maintaining advanced grouting device, comprising a cutter head (2) installed at the front end of a shield machine (1), a fixing frame (3) arranged in the inner cavity of the shield machine (1), and N advanced grouting pipes (4) evenly spaced along the circumferential direction and installed on the fixing frame (3), characterized in that, It further includes: An installation frame (5) installed in the inner cavity of the shield machine (1); A support base (10), fixed to the front end of the installation frame (5), with an advanced drilling rig installation position provided on the support base (10), and no advanced grouting pipe (4) is provided at the front end of the advanced drilling rig installation position; A rotating seat (6), in a circular ring structure, which is rotatably installed at the front end of the support base (10) through a rotating connection mechanism, and the axis of the rotating seat (6) is arranged in the horizontal direction; A rotating seat driving mechanism, arranged in the support base (10), for driving the rotating seat (6) to rotate; A mounting seat (8), arranged on the rotating seat (6) in the vertical direction, with a sealed cavity (23) provided inside the mounting seat (8), and insertion rods (22) are slidably inserted horizontally into the left and right ends of the cavity (23) respectively; An advanced drilling rig (7), with a shaft connection mechanism provided at its lower end; An insertion rod driving mechanism, arranged in the rotating seat (6), for driving the insertion rod (22) to slide horizontally. When the rotating seat (6) rotates to the installation position, the insertion rod driving mechanism drives the insertion rod (22) to move inward into the cavity (23). When the rotating seat (6) rotates away from the installation position, the insertion rod driving mechanism drives the insertion rod (22) to extend outward and insert into the shaft connection mechanism of the advanced drilling rig (7) to achieve the rotational connection between the advanced drilling rig (7) and the mounting seat (8), and An angle driving mechanism, arranged on the mounting seat (8), for adjusting the elevation angle of the initial state of the advanced drilling rig (7) to be adjusted towards the horizontal direction; The shaft connection mechanism includes support rods (16) respectively arranged on the left and right sides of the bottom of the advanced drilling rig (7) in the vertical direction. A gear II (17) is provided at the bottom of the support rod (16). The axis of the gear II (17) is arranged in the horizontal direction. The gear II (17) is provided with a mounting hole (18) along the axial direction. The inner diameter of the mounting hole (18) matches the outer diameter of the insertion rod (22). When the rotating seat (6) rotates to the installation position, the two gears II (17) are respectively placed on the left and right sides of the mounting seat (8). When the rotating seat (6) rotates away from the installation position, the insertion rod driving mechanism drives the insertion rod (22) to extend outward and insert into the mounting hole of the corresponding gear II (17) on the same side; The plug rod driving mechanism includes a slide rod (25) horizontally installed in the cavity (23), two slide plates (26), a chute II (24) vertically arranged in the mounting seat (8), and a slider (27) slidably installed in the chute II (24). The axis of the slide rod (25) is horizontally arranged in the left - right direction. The slide plates (26) are slidably installed on the slide rod (25) along the axial direction of the slide rod (25). The inner end of the plug rod (22) is fixed to the outer end of the corresponding slide plate (26) on the same side. On the left and right sides of the upper end of the slider (27), connecting rods (29) are respectively hinged. The head end of the connecting rod (29) is hinged to the corresponding slide plate (26) on the same side. The spring I (35) is located in the chute II (24), and the axial direction of the spring I (35) is vertically arranged. One end of the spring I (35) is connected to the mounting seat (8), and the other end is connected to the slider (27). When the spring I (35) is in the free state, the slider (27) moves down to the lowest position, the slide plates (26) slide inwards to retract the plug rod (22) into the cavity (23), and the outer end face of the plug rod (22) is located inside the side end face of the mounting seat (8). When the rotating seat (6) rotates away from the installation position, the synchronous driving mechanism drives the slider (27) to move up, and the slide plates (26) slide outwards to eject the plug rod (22).

2. The shield tunneling in - situ docking and surrounding rock stability - maintaining advanced grouting device according to claim 1, wherein: The rotation connection mechanism includes a flange (13) arranged along the circumferential direction at the front end of the support seat (10) and a chute I (14) arranged along the circumferential direction on the inner wall of the rotating seat (6) and matching with the flange (13). The flange (13) is embedded in the chute I (14).

3. The shield tunneling in - situ butt - joint advanced grouting device for maintaining the stability of surrounding rock according to claim 1, wherein: The rotating seat driving mechanism includes a motor I (11) installed in the support seat (10), a gear I (12) coaxially installed on the output shaft of the motor I (11), and an internal gear (15) arranged along the circumferential direction in the rotating seat (6). The axis of the motor I (11) is horizontally arranged, and the internal gear (15) is coaxially arranged with the rotating seat (6). The gear I (12) meshes with the internal gear (15).

4. The shield tunneling in - situ docking and surrounding rock stability - maintaining advanced grouting device according to claim 1, characterized in that: The advanced drill is installed at the bottom of the support seat (10).

5. The shield tunneling in - situ docking advanced grouting device for maintaining surrounding rock stability according to claim 1, wherein: The angle driving mechanism includes a bracket (19) installed on the mounting seat (8), a rotating shaft I (31) rotatably installed on the bracket (19), and a motor II (20) installed on the bracket (19). The axis of the rotating shaft I (31) is horizontally arranged, and the rotating shaft I (31) is coaxially driven and connected to the output shaft of the motor II (20). A gear III (21) is coaxially installed at the head end of the rotating shaft I (31). When the advanced drill (7) is rotatably connected to the mounting seat (8) through the shaft connection mechanism, the gear III (21) meshes with the gear II (17).

6. The shield underground docking and surrounding rock stability maintaining advanced grouting device according to claim 1, wherein: The synchronous drive mechanism includes a chute III (37) vertically arranged at the bottom of the mounting seat (8), a push rod (48) slidably mounted vertically in the chute III (37), a rack I (50) horizontally mounted at the bottom of the push rod (48), a chute VI (53) horizontally arranged in the rotating seat (6), a rack II (54) slidably mounted in the chute VI (53), and a pressing rod (56) vertically slidably inserted into the rotating seat (6). A gear V (52) is rotatably mounted in the rotating seat (6), and the gear V (52) is located between the rack I (50) and the rack II (54). The upper end of the gear V (52) meshes with the rack I (50), and the lower end of the gear V (52) meshes with the rack II (54). A guiding inclined surface III (49) is provided at the head end of the push rod (48), and the lower end of the slider (27) is in sliding friction contact with the guiding inclined surface III (49). A spring III (51) is horizontally arranged, one end of the spring III (51) is connected to the rotating seat (6), and the other end is connected to the push rod (48). A guiding inclined surface IV (55) is provided at the head end of the rack II (54), and the head end of the pressing rod (56) is in sliding friction contact with the guiding inclined surface IV (55). An arc chamfer (57) is provided at the lower end of the pressing rod (56). An arc-shaped plate (59) is horizontally mounted at the head end of the support seat (10). When the rotating seat (6) rotates to the installation position, the arc chamfer (57) of the pressing rod (56) is in sliding friction contact with the arc surface of the arc-shaped plate (59), and the pressing rod (56) is pushed upward by the extrusion force to slide, and the rack II (54) is pushed to slide through the guiding inclined surface IV (55). The gear V (52) drives the rack I (50) to slide in the reverse direction and compresses the spring III (51). The spring I (35) pulls the slider (27) downward. When the spring III (51) is in the free state, it pushes the push rod (48) to move to drive the slider (27) to move upward by the guiding inclined surface III (49) and stretch the spring I (35).

7. The shield tunneling in-situ butt-joint advanced grouting device for maintaining the stability of surrounding rock according to claim 1, characterized in that: The device further comprises a push frame (28) arranged at the outer end of the slider (27) in the horizontal direction, a slide groove IV (41) arranged in the push frame (28) in the horizontal direction, a vertical plate (30) slidably mounted in the slide groove IV (41) through a slide rail (42), a slide groove V (43) arranged in the vertical plate (30) in the vertical direction, a fixing block (45) slidably mounted in the slide groove V (43), and a pressing block (39) horizontally inserted in the vertical plate (30), wherein the front end of the mounting seat (8) is provided with a card slot (38) matching the vertical plate (30), the lower end of the card slot (38) is provided with a slot (40), and the upper end of the fixing block (45) is provided with a guide inclined surface I (41). 6), a guide slope II (47) is provided at its lower end, a spring II (44) is arranged in the slide groove V (43), an upper end of which is connected to the vertical plate (30), and a lower end of which is connected to the fixed block (45), and the guide slope I (46) is in sliding friction contact with the inner end of the pressing block (39). When the slider (27) moves up to the upper dead center position, the vertical plate (30) is pushed into the slot (38), and the spring II (44) pushes the lower end of the fixed block (45) to be inserted into the slot (40). When the pressing block (39) is pushed inward, the pressing block (39) drives the fixed block (45) to move up through the guide slope I (46) to disengage from the slot (40) and compress the spring II (44).

8. The shield tunneling in - situ docking and advanced grouting device for maintaining the stability of surrounding rock according to claim 5, wherein: The invention also comprises N positioning seats (9) arranged on the outer wall of the support seat (10) along the circumferential direction, positioning grooves (60) arranged in the positioning seats (9) along the horizontal direction, a positioning plate (58) slidably mounted in the rotating seat (6) along the horizontal direction, and a rotating shaft II (33) rotatably mounted in the rotating seat (6), wherein the size of the positioning plate (58) matches the positioning grooves (60), and a plurality of tooth grooves are arranged on the side end of the positioning plate (58) along the length thereof, a bevel gear I (32) is mounted on the rotating shaft I (31), and the rotating shaft II ( A bevel gear II (36) is installed at the upper end of the rotating shaft II (33), and a gear IV (34) is installed at the lower end of the rotating shaft II (33). The bevel gear I (32) meshes with the bevel gear II (36), and the gear IV (34) meshes with the tooth groove of the positioning plate (58). When the rotating seat (6) rotates until the advance drilling machine (7) is directly opposite to a front grouting pipe (4) and the motor II (20) rotates to adjust the angle of the advance drilling machine (7) in the horizontal direction, the positioning plate (58) extends from the rotating seat (6) and is inserted into the corresponding positioning groove (60) of the positioning seat (9).

Images