Negative ring tube sheet pulling mechanism

Abstract

The utility model relates to negative ring pipe piece hoisting technology field discloses a kind of negative ring pipe piece pulling mechanism, including being set between two tracks negative ring pipe piece and pedestal, and include: traction assembly, including the guide wheel being set on pedestal and the steel wire rope being set in guide wheel outside and one end is fixed on negative ring pipe piece for pulling negative ring pipe piece, support assembly for supporting guide wheel is equipped on pedestal, blocking component, including the mounting block being set between negative ring pipe piece and guide wheel, the mounting groove being opened in the top of mounting block and the blocking block being hinged in mounting groove interior for blocking negative ring pipe piece.The utility model structure is reasonable, can be pulled displacement to negative ring pipe piece, to facilitate portal crane to carry out hoisting to negative ring pipe piece, can be protected to block displacement negative ring pipe piece, can be adjusted according to pulling requirement, the position and height of guide component, convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of negative ring tunnel segment hoisting technology, specifically to a negative ring tunnel segment pulling mechanism. Background Technology

[0002] The negative ring segment is a temporary ring-shaped component installed between the reaction frame and the shield jacks during the initial stage of tunnel boring machine (TBM) deployment. This segment needs to be removed after the normal tunnel segments have sufficient reaction force. During the removal process, a traction mechanism is required to pull the negative ring segment to a suitable lifting position, so that the gantry crane can lift and transport the negative ring segment.

[0003] While existing traction mechanisms can pull negative ring segments, they are mostly fixed directly at the site of use, making it difficult to adapt and adjust the traction mechanism according to the pulling requirements of the negative ring segments, thereby improving the pulling efficiency of the negative ring segments. We propose a negative ring segment traction mechanism. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned shortcomings and provide a negative ring segment traction mechanism.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a negative ring tube segment pulling mechanism, comprising a negative ring tube segment and a base disposed between two tracks, including a traction component, comprising a guide wheel disposed above the base and a steel wire rope sleeved on the outside of the guide wheel and fixed at one end to the negative ring tube segment for pulling the negative ring tube segment, the base being provided with a support component for supporting the guide wheel; a blocking component, comprising a mounting block disposed between the negative ring tube segment and the guide wheel, a mounting groove opened on the top of the mounting block and a blocking block hinged inside the mounting groove for blocking the negative ring tube segment, through the operation of the above components, the negative ring tube segment can be moved, the displaced negative ring tube segment can be blocked, and the blocking block can be folded and stored.

[0006] Furthermore, the support assembly includes a mounting platform disposed between the base and the guide wheel, a groove formed on the base, a slider sliding within the groove, and studs slidably passing through the four corners of the mounting platform and fixed at one end to the slider for adjusting the height of the mounting platform. Nuts with threads fitted onto the outer walls of adjacent studs and abutting against the mounting platform are provided at the four corners on both sides of the mounting platform. The bottom end of the mounting block is fixed to the slider. A connecting column for driving the guide wheel to rotate is fixedly passed through the middle of the guide wheel. Support plates fixed to the top side of the mounting platform for supporting the connecting column are rotatably connected to both ends of the connecting column. Through the operation of the above components, the height and position of the guide wheel can be adjusted.

[0007] Furthermore, a locking block is fixed at one end of the slider near the negative ring tube segment, and multiple slots are provided on the inner wall of the slide groove near the negative ring tube segment. The locking block slides inside the adjacent slots. Through the cooperation of the slots and the locking block, the position of the mounting platform and the guide wheel can be fixed.

[0008] Furthermore, the end of the slider away from the negative ring tube is abutted against a pushing block that slides in the groove. The end of the pushing block away from the slider is fixed with multiple springs whose tail ends are fixed on the inner wall of the groove end for pushing the slider to reset displacement. Through the elasticity of the springs, the displaced pushing block can be pushed to reset displacement, the displaced slider can be pushed to reset displacement, and the locking block can be pushed into the adjacent locking groove.

[0009] Furthermore, the inner wall of the mounting groove is provided with a loading groove, and the inner wall at the end of the loading groove is fixed with a plurality of springs whose tail ends are fixed to the blocking block for pulling the blocking block to deflect. Through the springs, the blocking block can be pulled to deflect, causing the blocking block to be in a vertical state.

[0010] Furthermore, the base is provided with a sliding groove that communicates with the sliding channel. The mounting block slides inside the sliding groove, and the mounting block can be displaced on the base through the sliding groove.

[0011] Furthermore, the mounting platform has two sliding grooves at its lower ends, which are formed on the base and communicate with the sliding groove. The stud slides inside the sliding groove, and the stud can be flexibly moved through the sliding groove.

[0012] Furthermore, a pusher block is fixed on the top side of the base near the negative ring tube segment to push the blocking block to deflect. The pusher block can push the blocking block to deflect and store the blocking block on the base.

[0013] Compared with the prior art, the present invention has the following beneficial effects: This utility model can pull the negative ring segment when it needs to be removed, pulling it to the corresponding lifting position, thus facilitating the lifting of the negative ring segment by the gantry crane. It can also provide protective blocking for the displaced negative ring segment, preventing it from colliding with the guide wheel during inertial displacement and causing damage to the guide wheel. It has high protective performance. When the pulling mechanism is idle, the blocking block can be folded and stored. Furthermore, the position and height of the guide wheel can be adjusted according to the pulling requirements.

[0014] In summary, this utility model has a reasonable structure, which can pull and displace the negative ring segment, thereby facilitating the lifting and transportation of the negative ring segment by the gantry crane. It can also provide protective blocking for the displaced negative ring segment. The position and height of the guiding component can be adjusted according to the pulling requirements, making it easy to use. Attached Figure Description

[0015] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings: Figure 1 This is a schematic diagram of a negative ring segment pulling mechanism; Figure 2 This is a schematic diagram of the base in a negative ring segment traction mechanism; Figure 3 This is a schematic diagram of the mounting platform in a negative ring segment pulling mechanism; Figure 4 This is a sectional view of the mounting platform in a negative ring segment pulling mechanism; Figure 5 This is a cross-sectional view of an mounting block in a negative ring segment traction mechanism; Figure 6 for Figure 5 Enlarged structural diagram at point A in the middle.

[0016] In the diagram: 1. Track; 2. Negative ring segment; 3. Base; 4. Mounting platform; 5. Connecting column; 6. Guide wheel; 7. Support plate; 8. Wire rope; 9. Stud; 10. Nut; 11. Slide groove; 12. Slider; 13. Locking block; 14. Locking groove; 15. Pushing block; 16. Spring 1; 17. Mounting block; 18. Mounting groove; 19. Blocking block; 20. Loading groove; 21. Spring 2; 22. Pushing block. Detailed Implementation

[0017] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0018] Example 1: Combination Figure 1 , Figure 2 and Figure 3This embodiment of a negative ring tube segment traction mechanism includes a negative ring tube segment 2 and a base 3 disposed between two tracks 1. The bottom side of the negative ring tube segment 2 abuts against the top side of the track 1, and the abutment is coated with lubricating oil. The mechanism includes: a traction component, including a guide wheel 6 disposed above the base 3 and a steel wire rope 8 sleeved on the outside of the guide wheel 6 and fixed at one end to the negative ring tube segment 2 for pulling the negative ring tube segment 2; a support component for supporting the guide wheel 6 on the base 3; and a blocking component, including a mounting block 17 disposed between the negative ring tube segment 2 and the guide wheel 6, a mounting groove 18 opened on the top of the mounting block 17, and a blocking block 19 hinged inside the mounting groove 18 for blocking the negative ring tube segment 2.

[0019] The implementation principle of the negative ring segment traction mechanism in this application embodiment is as follows: When it is necessary to remove and traction the negative ring segment 2, the base 3 is fixed on the ground, one end of the wire rope 8 is fixed on the negative ring segment 2, and the other end of the wire rope 8 is fixed on the traction vehicle. Through the operation of the traction vehicle and the guidance of the guide wheel 6, the wire rope 8 is moved, which in turn moves the negative ring segment 2. At this time, the negative ring segment 2 will be pulled on the track 1 by the wire rope 8. When the negative ring segment 2 is being tractioned, due to its large inertia, when the traction vehicle stops moving and continues to move, the blocking block 19 can block the moving negative ring segment 2 to prevent the negative ring segment 2 from colliding with the guide wheel 6 during inertial displacement, which would cause damage to the guide wheel 6. The protection performance is high. When the traction mechanism is in an idle state, the blocking block 19 is pulled. Through the hinged cooperation between the blocking block 19 and the mounting groove 18, the blocking block 19 can be deflected, thereby folding and storing the blocking block 19.

[0020] Example 2: Combination Figure 4 and Figure 5This embodiment, based on embodiment 1, further improves upon the following: the support assembly includes a mounting platform 4 disposed between the base 3 and the guide wheel 6, a sliding groove 11 formed on the base 3, a slider 12 sliding within the sliding groove 11, and studs 9 slidably passing through the four corners of the mounting platform 4 and fixed at one end to the slider 12 for adjusting the height of the mounting platform 4. Nuts 10, threaded onto the outer wall of adjacent studs 9 and abutting against the mounting platform 4, are provided at the four corners on both sides of the mounting platform 4. The bottom end of the mounting block 17 is fixed to the slider 12. A connecting column 5 for driving the guide wheel 6 to rotate is fixedly passed through the middle of the guide wheel 6. Support plates 7, fixed to the top side of the mounting platform 4 for supporting the connecting column 5, are rotatably connected to both ends of the connecting column 5. Rotating the nut 10, through the cooperation of the nut 10 and the stud 9, allows the... The movable nut 10 is displaced. When the nut 10 separates from the mounting platform 4, the mounting platform 4 can be pulled. Through the sliding engagement of the mounting platform 4 and the stud 9, the mounting platform 4 is moved vertically, causing the support plate 7, connecting column 5, and guide wheel 6 to move vertically. At this time, the height of the guide wheel 6 can be adjusted according to the traction requirements of the negative ring segment 2. After the height of the guide wheel 6 is adjusted, the nut 10 is rotated. Through the engagement of the nut 10 and the stud 9, the nut 10 is moved. When the nut 10 abuts against the mounting platform 4, the height of the mounting platform 4 and the guide wheel 6 is fixed. By pulling the mounting platform 4, through the sliding engagement of the slider 12 and the slide groove 11, the mounting platform 4 can be moved, causing the guide wheel 6 to move. At this time, the position of the guide wheel 6 can be adjusted.

[0021] A locking block 13 is fixed to one end of the slider 12 near the negative ring tube 2. Multiple slots 14 are opened on the inner wall of the slide groove 11 near the negative ring tube 2. The locking block 13 slides inside the adjacent slots 14. When the position of the guide wheel 6 needs to be adjusted, the mounting platform 4 can be pulled, which will drive the stud 9 and the slider 12 to move, and drive the locking block 13 to move. When the locking block 13 is disengaged from the slot 14, the mounting platform 4 can be pulled. Through the sliding cooperation of the slider 12 and the slide groove 11, the mounting platform 4 can be moved. After the position of the mounting platform 4 is adjusted, the mounting platform 4 can be pushed, which will drive the stud 9 and the slider 12 to move, and drive the locking block 13 to move. When the locking block 13 enters the adjacent slot 14, the positions of the mounting platform 4 and the guide wheel 6 are fixed.

[0022] The end of the slider 12 away from the negative ring tube 2 is abutted against a push block 15 that slides in the slide groove 11. The end of the push block 15 away from the slider 12 is fixed with multiple springs 16 whose tail ends are fixed on the inner wall of the end of the slide groove 11 for pushing the slider 12 to reset displacement. When the slider 12 is displaced, it will drive the push block 15 to move. Through the elasticity of the springs 16, the displaced push block 15 can be pushed to reset displacement, pushing the displaced slider 12 to reset displacement, and pushing the locking block 13 into the adjacent locking groove 14.

[0023] Example 3: Combination Figure 6 Based on Embodiment 1, this embodiment is further improved in that: the inner wall of the mounting groove 18 is provided with a loading groove 20, and the inner wall of the end of the loading groove 20 is fixed with a plurality of springs 21 whose tail ends are fixed on the blocking block 19 for pulling the blocking block 19 to deflect. Through the springs 21, the blocking block 19 can be pulled to deflect, thereby driving the blocking block 19 to be in a vertical state.

[0024] The base 3 has a sliding groove 1 that communicates with the sliding groove 11. The mounting block 17 slides inside the sliding groove 1. The mounting block 17 can be moved on the base 3 through the sliding groove 1.

[0025] The mounting platform 4 has two sliding grooves on the base 3 and connected to the sliding groove 11. The stud 9 slides inside the sliding groove, and the stud 9 can be flexibly moved through the sliding groove.

[0026] A pusher block 22 is fixed on the top side of the base 3 near the negative ring tube 2 to push the blocking block 19 to deflect. When the blocking block 19 needs to be stored and folded, the mounting platform 4 is pulled, which drives the stud 9 and slider 12 to move, and drives the locking block 13 to move. After the locking block 13 is disengaged from the slot 14, the mounting platform 4 is pulled, and the slider 12 can be moved through the sliding cooperation of the slider 12 and the slide groove 11, which drives the mounting block 17 to move, and drives the blocking block 19 to move. When the blocking block 19 contacts the pusher block 22, the pusher block 22 pushes the blocking block 19 to deflect, and the blocking block 19 is stored and folded on the base 3.

[0027] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within the present invention.

Claims

1. A negative ring segment traction mechanism, comprising a negative ring segment (2) and a base (3) disposed between two tracks (1), characterized in that: include: The traction assembly includes a guide wheel (6) disposed above the base (3) and a wire rope (8) sleeved on the outside of the guide wheel (6) and fixed at one end to the negative ring tube segment (2) for pulling the negative ring tube segment (2). The base (3) is provided with a support assembly for supporting the guide wheel (6). The blocking assembly includes a mounting block (17) disposed between the negative ring tube segment (2) and the guide wheel (6), a mounting groove (18) opened on the top of the mounting block (17), and a blocking block (19) hinged inside the mounting groove (18) for blocking the negative ring tube segment (2).

2. The negative ring segment pulling mechanism as described in claim 1, characterized in that: The support assembly includes a mounting platform (4) disposed between the base (3) and the guide wheel (6), a groove (11) opened on the base (3), a slider (12) sliding in the groove (11), and studs (9) that slide through the four corners of the mounting platform (4) and are fixed at one end to the slider (12) for adjusting the height of the mounting platform (4). Nuts (10) with threads sleeved on the outer wall of the adjacent studs (9) and abutting against the mounting platform (4) are provided at the four corners on both sides of the mounting platform (4). The bottom end of the mounting block (17) is fixed on the slider (12). A connecting column (5) for driving the guide wheel (6) to rotate is fixedly disposed in the middle of the guide wheel (6). The two ends of the connecting column (5) are rotatably connected to a support plate (7) fixed on the top side of the mounting platform (4) for supporting the connecting column (5).

3. The negative ring segment pulling mechanism as described in claim 2, characterized in that: The slider (12) has a locking block (13) fixed at one end near the negative ring tube (2). The inner wall of the slide groove (11) near the negative ring tube (2) has multiple slots (14). The locking block (13) slides inside the adjacent slots (14).

4. The negative ring segment pulling mechanism as described in claim 2, characterized in that: The end of the slider (12) away from the negative ring tube (2) is abutted against a push block (15) that slides in the groove (11). The end of the push block (15) away from the slider (12) is fixed with a plurality of springs (16) whose tail ends are fixed on the inner wall of the end of the groove (11) for pushing the slider (12) to perform reset displacement.

5. The negative ring segment pulling mechanism as described in claim 1, characterized in that: The inner wall of the mounting groove (18) is provided with a loading groove (20), and the inner wall of the end of the loading groove (20) is fixed with a plurality of springs (21) whose tail ends are fixed on the blocking block (19) for pulling the blocking block (19) to deflect.

6. The negative ring segment pulling mechanism as described in claim 2, characterized in that: The base (3) has a sliding groove 1 that communicates with the sliding groove (11), and the mounting block (17) slides inside the sliding groove 1.

7. The negative ring segment pulling mechanism as described in claim 2, characterized in that: The mounting platform (4) has two sliding grooves (2) on the base (3) and connected to the sliding groove (11) at both ends below the mounting platform (4). The stud (9) slides inside the sliding groove (2).

8. The negative ring segment pulling mechanism as described in claim 1, characterized in that: The base (3) has a push block (22) fixed on the top side near the negative ring tube (2) for pushing the blocking block (19) to deflect.

Images