Shield tunneling machine starting mechanism of steel sleeve convenient to seal and combine

Abstract

The invention relates to the technical field of tunnel engineering tools, in particular to a steel sleeve shield tunneling machine starting mechanism convenient to seal and combine, which comprises a center mounting frame, a center cross rod transversely arranged in the center mounting frame and an inclined strut frame arranged on one side, far away from a tunneling end, of the center mounting frame. The shield negative ring duct piece is adsorbed to a second other suction cup, the shield negative ring duct piece is driven by a second electric push rod to move into the shield tunneling machine body, a swing plate and an assembly frame are driven by a structure on a driving unit to rotate, and therefore a first electric push rod and a first gas suction cup are driven to move to the corresponding positions; the shield negative ring duct pieces are sucked by the first gas suction cup, and the shield negative ring duct pieces are driven to reach a proper position to be assembled through rotation of the swing plate and assembly frame composition structure, so that movement and rotation of the shield negative ring duct pieces are achieved, and convenience in the shield negative ring duct piece assembly process is improved.

Description

Technical Field

[0001] The invention relates to the technical field of tunnel engineering tools, in particular to a shield machine starting mechanism of a steel sleeve which is convenient for sealing and assembly. Background Art

[0002] The shield machine's starting mechanism is a key component in shield construction. It plays an important role in the stage when the shield machine starts to excavate. The shield machine's starting mechanism usually includes a starting base, a reaction frame and other parts. The starting base provides a stable installation and starting platform for the shield machine, ensuring that the shield machine can accurately enter the tunnel axis in the initial stage, and the reaction frame provides reaction force for the shield machine's propulsion, enabling the shield machine to overcome the stratum resistance and move forward.

[0003] During the operation of the shield machine's starting mechanism, the shield machine's starting mechanism is used to drive the shield's negative ring segments to move into the shield machine. During the movement of the shield's negative ring segments, a multi-stage driving structure is required to drive the movement of the shield's negative ring segments. The movement trajectory of the shield's negative ring segments is affected by the multi-stage driving structure. The adjustability of the shield's negative ring segments' movement trajectory is poor, and there is a lot of room for improvement. Summary of the invention

[0004] The object of the present invention is to provide a shield machine launching mechanism with a steel sleeve that is easy to seal and assemble, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a shield machine starting mechanism with a steel sleeve that is easy to seal and assemble, comprising a central mounting frame, a central cross bar arranged transversely in the central mounting frame, and an inclined support frame on the side of the central mounting frame away from the tunneling end, a shield machine body is arranged on the side of the central mounting frame close to the tunneling end, a driving unit is fixedly installed in the shield machine body, a swing plate is fixedly installed on the output shaft of the driving unit, an assembly frame is fixedly installed on the end of the swing plate away from the output shaft, a sliding seat is slidably connected to the assembly frame, a driving motor is fixedly installed on the driving unit, a screw is fixedly installed on the output shaft of the driving motor, the screw is threadedly connected to the sliding seat, a first electric push rod is fixedly installed on the sliding seat, and a first gas push rod is fixedly installed on the end of the piston rod of the first electric push rod Suction cup, a corrugated air pipe is arranged between the sliding seat and the first gas suction cup for connection, a power unit is arranged on the side of the central cross bar close to the excavation end, a driving wheel is arranged at the bottom of the power unit, a central sliding block located between the driving wheels is fixedly installed at the bottom of the power unit, a positioning frame is fixedly installed on the side of the central cross bar close to the excavation end, the driving wheel is rollingly connected to the upper surface of the positioning frame, a limiting strip is slidingly connected in the positioning frame, a locking bolt is threadedly connected on the limiting strip, and the locking bolt is threadedly installed in the central sliding block through the limiting strip, an adjusting disk is arranged below the central sliding block, a second electric push rod is fixedly installed on the adjusting disk, a second other suction cup is fixedly installed on the bottom end of the piston rod of the second electric push rod, and a corrugated air pipe is also arranged between the adjusting disk and the second other suction cup for connection.

[0006] Preferably, a cavity communicating with the corrugated air pipe is provided on the outer side of the first gas suction cup and the second other suction cup.

[0007] Preferably, the corrugated air pipe consists of two parts, a corrugated pipe part and a common pipe, and the corrugated air pipe is an integrally formed structure.

[0008] Preferably, the screw rod is rotatably connected to the assembly frame, and the screw rod is threadedly connected to a portion of the sliding seat sleeve disposed on the screw rod.

[0009] Preferably, the drive unit and the assembly frame form an L-shaped structure, and the length of the drive unit is smaller than the inner diameter of the shield machine body.

[0010] Preferably, a trapezoidal limit block is fixedly installed on the bottom of the central sliding block, a groove matching the shape of the trapezoidal limit block is opened on the top of the adjusting disk, a limit screw is fixedly installed on the bottom of the trapezoidal limit block, a locking nut is threadedly connected on the limit screw, and the locking nut is supported at a corresponding position on the bottom of the adjusting disk.

[0011] Preferably, a groove corresponding to the shape of the limiting screw is provided on the adjustment disk, and the limiting screw is slidably connected to the groove.

[0012] Preferably, an annular positioning strip is provided on one side of the driving unit close to the swing plate, a limiting ring is fixedly installed on the circumferential outer wall of the annular positioning strip, a limiting buckle is fixedly installed on one side of the swing plate close to the driving unit, and the limiting buckle is slidably connected to the limiting ring.

[0013] Preferably, the annular positioning strip is coaxially arranged with the driving unit.

[0014] Preferably, an assembly base pad is fixedly installed on the side of the central mounting frame away from the excavation end, a slide groove is provided on the top of the assembly base pad, a driving trolley is slidably connected in the slide groove, a third electric push rod is fixedly installed on the driving trolley, a rectangular frame is provided outside the piston rod of the third electric push rod, a storage plate is provided on the rectangular frame, and the rectangular frame and the storage plate are fixedly connected, a plurality of groups of rectangular slots are provided on the rectangular frame, rectangular plug blocks are movably inserted in the rectangular slots, and the rectangular plug blocks are inserted into the piston rod of the third electric push rod.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The movement of the shield negative ring segment is realized by driving the trolley to move on the assembly base. The shield negative ring segment is adsorbed on the second suction cup, and the shield negative ring segment is driven to move into the shield machine body by the second electric push rod. The swing plate and the assembly frame are driven to rotate by the structure on the driving unit, thereby driving the first electric push rod and the first gas suction cup to move to the corresponding position. The first gas suction cup adsorbs the shield negative ring segment, and drives the shield negative ring segment to the appropriate position for assembly through the rotation of the structure composed of the swing plate and the assembly frame, thereby realizing the movement and rotation of the shield negative ring segment and improving the convenience of the shield negative ring segment assembly process.

[0016] 2. The rectangular frame is lifted and lowered by the piston rod of the third electric push rod. The upward movement of the rectangular frame drives the storage tray to move upward. The height of the storage tray changes when it moves upward. After the height of the storage tray changes, it remains consistent with the height of the built-in storage tray of the shield machine body. By making the heights of the two consistent, the transportation of slag is achieved, thereby increasing the diversity of the use of the instrument and achieving better use effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the side structure of the present invention.

[0018] Figure 2 It is a schematic diagram of the front structure of the present invention.

[0019] Figure 3 It is a schematic diagram of the internal structure of the present invention.

[0020] Figure 4 It is a structural schematic diagram of the corresponding position of the assembly base pad of the present invention.

[0021] Figure 5 It is a schematic diagram of the structure at the corresponding position of the driving trolley of the present invention.

[0022] Figure 6 It is a structural schematic diagram of the corresponding position of the positioning frame of the present invention.

[0023] Figure 7 It is a structural schematic diagram of the corresponding position of the second electric push rod of the present invention.

[0024] Figure 8 It is a structural schematic diagram of the corresponding position of the adjustment plate of the present invention.

[0025] Fig. 9 It is a structural schematic diagram of the corresponding position of the annular positioning strip of the present invention.

[0026] In the figure: 1. center mounting frame; 2. center cross bar; 3. diagonal support frame; 4. shield machine body; 5. drive unit; 6. swing plate; 7. assembly frame; 8. sliding seat; 9. drive motor; 10. screw rod; 11. first electric push rod; 12. first gas suction cup; 13. corrugated air pipe; 14. power unit; 15. driving wheel; 16. center sliding block; 17. adjustment frame; 18. limit strip; 19. locking bolt; 20. adjustment plate; 21. second electric push rod; 22. second other suction cup; 23. trapezoidal limit block; 24. limit screw; 25. locking nut; 26. annular positioning strip; 27. limit ring; 28. limit buckle; 29. ​​assembly base; 30. slide; 31. drive trolley; 32. third electric push rod; 33. rectangular frame; 34. storage tray; 35. rectangular slot; 36. rectangular plug block. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution in the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all the embodiments. Based on the embodiments 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.

[0028] See also Figures 1 to 9The present invention provides a technical solution: a shield machine starting mechanism of a steel sleeve that is easy to seal and combine, including a central mounting frame 1, a central crossbar 2 is horizontally arranged in the central mounting frame 1, and an inclined support frame 3 on the side of the central mounting frame 1 away from the excavation end, a shield machine body 4 is arranged on the side of the central mounting frame 1 close to the excavation end, a driving unit 5 is fixedly installed in the shield machine body 4, the driving unit 5 is located on the side of the excavation end, and is mainly used for excavation, the central mounting frame 1, the central crossbar 2 and the inclined support frame 3 are located in a pre-opened underground pit, and the central mounting frame 1 and the inclined support frame 3 form a frame fixed The drive unit 5 is fixedly installed in an underground pit. A swing plate 6 is fixedly installed on the output shaft of the drive unit 5. An assembly frame 7 is fixedly installed on the end of the swing plate 6 away from the output shaft. The structure composed of the swing plate 6 and the assembly frame 7 is driven to rotate by the driving part in the drive unit 5. A sliding seat 8 is slidably connected to the assembly frame 7. The sliding seat 8 is composed of a main body and a rotating part corresponding to the screw rod 10. A drive motor 9 is fixedly installed on the drive unit 5. A screw rod 10 is fixedly installed on the output shaft of the drive motor 9. The screw rod 10 is threadedly connected to the sliding seat 8. The drive motor 9 drives the screw rod 10 to rotate. The rotation of the screw rod 10 drives the sliding seat 8 to move in the assembly frame 7. A first electric push rod 11 is fixedly installed on the sliding seat 8. A first gas suction cup 12 is fixedly installed on the piston rod end of the first electric push rod 11. A corrugated air pipe 13 is provided between the sliding seat 8 and the first gas suction cup 12 for connection. A power unit 14 is provided on the side of the central cross bar 2 close to the excavation end. A driving wheel 15 is provided at the bottom of the power unit 14. A central sliding block 16 located between the driving wheels 15 is fixedly installed at the bottom of the power unit 14. The central cross bar 2 is fixedly installed on the side close to the excavation end. There is a positioning frame 17, the driving wheel 15 is rollingly connected to the upper surface of the positioning frame 17, a limiting strip 18 is slidably connected inside the positioning frame 17, a locking bolt 19 is threadedly connected to the limiting strip 18, and the locking bolt 19 passes through the limiting strip 18 and is threadedly installed in the central sliding block 16, an adjusting disk 20 is arranged below the central sliding block 16, a second electric push rod 21 is fixedly installed on the adjusting disk 20, a second other suction cup 22 is fixedly installed at the bottom end of the piston rod of the second electric push rod 21, and a corrugated air pipe 13 is also arranged between the adjusting disk 20 and the second other suction cup 22 for connection.

[0029] The first gas suction cup 12 and the second other suction cup 22 are provided with a cavity connected to the corrugated gas pipe 13 on the outer side, so as to increase the contact area with the negative ring segment of the shield, thereby ensuring the adsorption effect on the negative ring segment of the shield.

[0030] The corrugated air pipe 13 is composed of two parts, a corrugated pipe part and a common pipe, and the corrugated air pipe 13 is an integrally formed structure, which improves the convenience of manufacturing the corrugated air pipe 13.

[0031] The screw rod 10 is rotatably connected to the assembly frame 7 , and the screw rod 10 is threadedly connected to a portion of the sliding seat 8 sleeved on the screw rod 10 , and the sliding seat 8 is driven to move in the assembly frame 7 by the rotation of the screw rod 10 .

[0032] The drive unit 5 and the assembly frame 7 form an L-shaped structure, and the length of the drive unit 5 is smaller than the inner diameter of the shield machine body 4, ensuring that when the swing plate 6 and the assembly frame 7 form a structure that rotates, the adsorbed shield negative ring segment will not collide with the inner wall of the shield machine body 4.

[0033] A trapezoidal limit block 23 is fixedly installed at the bottom of the central sliding block 16, and a groove matching the shape of the trapezoidal limit block 23 is opened on the top of the adjusting disk 20. A limit screw 24 is fixedly installed at the bottom of the trapezoidal limit block 23, and a locking nut 25 is threadedly connected to the limit screw 24. The locking nut 25 is supported at the corresponding position of the bottom of the adjusting disk 20. The adjusting disk 20 can slide on the trapezoidal limit block 23, thereby changing the working position and maximum movement trajectory of the second other suction cup 22 at the bottom of the adjusting disk 20.

[0034] The adjusting plate 20 is provided with a groove corresponding to the shape of the limiting screw 24 , and the limiting screw 24 is slidably connected to the groove.

[0035] An annular positioning strip 26 is provided on one side of the driving unit 5 close to the swing plate 6, and a limiting ring 27 is fixedly installed on the circumferential outer wall of the annular positioning strip 26. A limiting buckle 28 is fixedly installed on one side of the swing plate 6 close to the driving unit 5. The limiting buckle 28 is slidably connected with the limiting ring 27. The limiting buckle 28 cooperates with the annular positioning strip 26 and the limiting ring 27 to form a structure to ensure the sliding stability of the structure composed of the swing plate 6 and the assembly frame 7.

[0036] The annular positioning strip 26 is coaxially arranged with the driving unit 5 .

[0037] A mounting base pad 29 is fixedly installed on the side of the central mounting frame 1 away from the excavation end, and a slide groove 30 is provided on the top of the mounting base pad 29. A driving trolley 31 is slidably connected in the slide groove 30, and a third electric push rod 32 is fixedly installed on the driving trolley 31. A rectangular frame 33 is provided outside the piston rod of the third electric push rod 32, and a storage tray 34 is provided on the rectangular frame 33. The rectangular frame 33 and the storage tray 34 are fixedly connected, and a plurality of groups of rectangular slots 35 are provided on the rectangular frame 33. Rectangular plug blocks 36 are movably inserted in the rectangular slots 35, and the rectangular plug blocks 36 are inserted into the piston rod of the third electric push rod 32. The storage tray 34 is driven to move by the driving trolley 31, thereby driving the shield negative ring segment on the storage tray 34 to move. At the same time, the third electric push rod 32 can push the storage tray 34 to rise and fall, and cooperate with the storage tray 34 in the shield machine body 4 to realize the transportation of slag.

[0038] Working principle: Step 1: The rectangular frame 33 moves on the piston rod of the third electric push rod 32, and the rectangular insert block 36 is inserted into the rectangular slot 35 and the piston rod of the third electric push rod 32 to fix the structure of the rectangular frame 33 and the storage tray 34 after the movement. After the structure of the storage tray 34 and the rectangular frame 33 is adjusted, the shield negative ring segment is placed on the storage tray 34, and the movement of the shield negative ring segment is realized by driving the trolley 31 on the assembly base 29. The shield negative ring segment moves to a suitable position. After the shield is placed, the piston rod of the second electric push rod 21 drives the second other suction cup 22 to descend, the corrugated air pipe 13 moves downward and deforms, and at the same time, the air pump at the other end of the corrugated air pipe 13 works, and the second other suction cup 22 generates suction to adsorb the shield negative ring segment on the second other suction cup 22, and the shield negative ring segment is driven to move upward by the second electric push rod 21. After the shield negative ring segment moves to a suitable height, the driving wheel 15 rotates to drive the central sliding block 16 to move in the positioning frame 17, and the central sliding block 16 is driven to move in the positioning frame 17. The movement of the moving block 16 drives the adjustment disk 20 to move, and the movement of the adjustment disk 20 drives the shield negative ring segment to move into the shield machine body 4. After that, after the second other suction cup 22 no longer generates suction, the shield negative ring segment falls into the shield machine body 4, and the structure on the adjustment disk 20 moves to the outside of the shield machine body 4. The swing plate 6 and the assembly frame 7 are driven to rotate by the structure on the driving unit 5. The first gas suction cup 12 and the first electric push rod 11 form a structure in a vertical state. The driving motor 9 drives the screw rod 10 to rotate, thereby driving the sliding seat 8 to move in the assembly frame 7, thereby driving the first electric push rod 11 and the first gas suction cup 12 to move to the corresponding position, and the piston rod of the first electric push rod 11 drives the first gas suction cup 12 to descend, and the first gas suction cup 12 contacts with the shield negative ring segment. Through the work of the corrugated air pipe 13, the first gas suction cup 12 absorbs the shield negative ring segment, and through the rotation of the swing plate 6 and the assembly frame 7, the shield negative ring segment is driven to reach a suitable position for assembly.

[0039] Step 2: By moving the adjusting disk 20 on the trapezoidal limit block 23 and rotating the locking nut 25 on the limit screw 24, the adjusting disk 20 is fixed on the trapezoidal limit block 23 after adjustment. After the adjustment of the adjusting disk 20 is completed, the movement trajectory of the adjusting disk 20 changes to adapt to different movement strokes to ensure the movement trajectory and effect.

[0040] Step 3: The piston rod of the third electric push rod 32 drives the rectangular frame 33 to rise and fall, and the upward movement of the rectangular frame 33 drives the upward movement of the storage tray 34. The height of the storage tray 34 changes when it moves upward. After the height of the storage tray 34 changes, it is consistent with the height of the storage tray 34 built in the shield machine body 4. The transportation of slag is achieved by the consistency of the heights of the two.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A shield machine launching mechanism with a steel sleeve that is easy to seal and assemble, comprising a central mounting frame (1), a central crossbar (2) disposed transversely in the central mounting frame (1), and an inclined support frame (3) on a side of the central mounting frame (1) away from the tunneling end, characterized in that: A shield machine body (4) is arranged on the side of the central mounting frame (1) close to the tunneling end. A drive unit (5) is fixedly installed in the shield machine body (4). A swing plate (6) is fixedly installed on the output shaft of the drive unit (5). An assembly frame (7) is fixedly installed on the end of the swing plate (6) away from the output shaft. A sliding seat (8) is slidably connected to the assembly frame (7). A drive motor (9) is fixedly installed on the drive unit (5). A screw rod (10) is fixedly installed on the output shaft of the drive motor (9). The screw rod (10) is threadedly connected to the sliding seat (8). A first electric push rod (11) is fixedly installed on the sliding seat (8). A first gas suction cup (12) is fixedly installed on the piston rod end of the first electric push rod (11). A corrugated gas pipe (13) is arranged between the sliding seat (8) and the first gas suction cup (12) for connection. A power unit (14) is arranged on the side of the central cross bar (2) close to the tunneling end. The bottom of the power unit (14) is provided with a driving wheel (15), the bottom of the power unit (14) is fixedly provided with a central sliding block (16) located between the driving wheels (15), the side of the central cross bar (2) close to the excavation end is fixedly provided with a positioning frame (17), the driving wheel (15) is rollingly connected to the upper surface of the positioning frame (17), the positioning frame (17) is slidingly connected with a limiting strip (18), and the limiting strip (18) is threadedly connected with a locking bolt. (19), and the locking bolt (19) passes through the limiting strip (18) and is threadedly installed in the central sliding block (16), and an adjustment disk (20) is arranged below the central sliding block (16), and a second electric push rod (21) is fixedly installed on the adjustment disk (20), and a second other suction cup (22) is fixedly installed at the bottom end of the piston rod of the second electric push rod (21), and a corrugated air pipe (13) is also arranged between the adjustment disk (20) and the second other suction cup (22) for connection.

2. The shield machine launching mechanism of the steel sleeve that is easy to seal and assemble according to claim 1 is characterized in that: The first gas suction cup (12) and the second other suction cup (22) are provided with a cavity on the outer side thereof, which is in communication with the corrugated gas pipe (13).

3. The shield machine launching mechanism of the steel sleeve that is easy to seal and assemble according to claim 2 is characterized in that: The corrugated air pipe (13) consists of two parts: a corrugated pipe part and a common pipe, and the corrugated air pipe (13) is an integrally formed structure.

4. The shield machine launching mechanism of the steel sleeve that is easy to seal and assemble according to claim 3 is characterized in that: The screw rod (10) is rotatably connected to the assembly frame (7), and the screw rod (10) is threadedly connected to a portion of the sliding seat (8) sleeved on the screw rod (10).

5. The shield machine launching mechanism of the steel sleeve that is easy to seal and assemble according to claim 4 is characterized in that: The drive unit (5) and the assembly frame (7) form an L-shaped structure, and the length of the drive unit (5) is smaller than the inner diameter of the shield machine body (4).

6. The shield machine launching mechanism of the steel sleeve that is easy to seal and assemble according to claim 5 is characterized in that: A trapezoidal limit block (23) is fixedly mounted on the bottom of the central sliding block (16); a groove matching the shape of the trapezoidal limit block (23) is formed on the top of the positioning disk (20); a limit screw (24) is fixedly mounted on the bottom of the trapezoidal limit block (23); a locking nut (25) is threadedly connected to the limit screw (24); and the locking nut (25) is supported at a corresponding position on the bottom of the positioning disk (20).

7. The shield machine launching mechanism of the steel sleeve that is easy to seal and assemble according to claim 6 is characterized by: The positioning disk (20) is provided with a groove corresponding to the shape of the limiting screw (24), and the limiting screw (24) is slidably connected to the groove.

8. The shield machine launching mechanism of the steel sleeve that is easy to seal and assemble according to claim 7 is characterized in that: An annular positioning strip (26) is provided on one side of the drive unit (5) close to the swing plate (6); a limiting ring (27) is fixedly mounted on the circumferential outer wall of the annular positioning strip (26); a limiting buckle (28) is fixedly mounted on one side of the swing plate (6) close to the drive unit (5); and the limiting buckle (28) is slidably connected to the limiting ring (27).

9. The shield machine launching mechanism of the steel sleeve that is easy to seal and assemble according to claim 8, characterized in that: The annular positioning strip (26) is coaxially arranged with the driving unit (5).

10. The shield machine launching mechanism of the steel sleeve that is easy to seal and assemble according to claim 9, characterized in that: A mounting base pad (29) is fixedly mounted on the side of the central mounting frame (1) away from the excavation end, a slide groove (30) is provided on the top of the mounting base pad (29), a driving trolley (31) is slidably connected in the slide groove (30), a third electric push rod (32) is fixedly mounted on the driving trolley (31), a rectangular frame (33) is arranged outside the piston rod of the third electric push rod (32), a storage tray (34) is arranged on the rectangular frame (33), and the rectangular frame (33) and the storage tray (34) are fixedly connected, a plurality of groups of rectangular slots (35) are provided on the rectangular frame (33), a rectangular plug block (36) is movably inserted in the rectangular slot (35), and the rectangular plug block (36) is inserted into the piston rod of the third electric push rod (32).

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