Cutter suction system for excavation between dock piles and sand suction method thereof

Abstract

The present invention relates to a winch suction system for excavation between dock piles and a sand suction method thereof, and belongs to the technical field of excavation construction. The winch suction system comprises two first rails, a mobile frame, a trolley, a guide pipe, a winch suction head and a lifting assembly; the two first rails are arranged in parallel with each other, and the first rails are erected on the top of a plurality of pile foundations arranged in the longitudinal direction; the mobile frame is erected between the two first rails in the transverse direction, the mobile frame is slidably connected to the first rail, and the mobile frame is provided with a second rail extending in the transverse direction; the trolley is slidably connected to the second rail of the mobile frame; the guide pipe is installed on the trolley through a constraint mechanism, the guide pipe is arranged in the vertical direction and is lifted and lowered relative to the constraint mechanism in the vertical direction, and during the lifting and lowering process of the guide pipe, the constraint mechanism limits the lifting and lowering direction of the guide pipe; the winch suction head is connected to the bottom end of the guide pipe; and the lifting and lowering assembly is used to drive the guide pipe to lift and lower. The winch suction system can be erected on the top of the dock pile foundation, and can be applicable to the excavation of backfill sand and dense original sand between dock piles.

Description

Technical Field

[0001] The invention belongs to the technical field of excavation construction, and in particular relates to a winch suction system for excavation between dock piles and a sand suction method thereof. Background Art

[0002] In the construction of some offshore high-pile wharf projects, in order to improve construction safety, the process of "first building an island to form dry land construction conditions for high-pile wharf pile foundation construction, and then back-digging to form a slope" is adopted. However, in this high-pile wharf construction process of "first building an island, then back-digging", due to the limitation of the space between the wharf piles, special excavation ships cannot enter the piles for construction, and the excavation of backfill sand and dense original sand between the wharf piles is extremely difficult, which seriously affects the construction efficiency and construction period of the excavation. Moreover, if the excavation greatly disturbs the pile foundation, it is very easy to collapse and cause serious accidents. Therefore, how to provide a construction equipment and method suitable for excavation between wharf piles to improve the excavation efficiency of backfill sand and dense sand between wharf piles and reduce construction risks is a technical difficulty that urgently needs to be solved. Summary of the invention

[0003] In view of the above technical difficulties, the present invention provides a winch suction system for excavation between wharf piles and a sand suction method thereof. The winch suction system can be erected on the top of the wharf pile foundation and can be used for excavation of backfill sand and dense original sand between wharf piles. It has high excavation efficiency and low construction risk.

[0004] The present invention provides a winch suction system for excavating between dock piles, wherein the length direction of the dock is the longitudinal direction and the width direction is the transverse direction. The winch suction system for excavating between dock piles comprises:

[0005] Two first rails, the two first rails are arranged parallel to each other, the first rails extend in the longitudinal direction, and the first rails are erected on top of a plurality of pile foundations arranged in the longitudinal direction;

[0006] A mobile frame is transversely mounted between the two first rails, the mobile frame is slidably connected to the first rails to move longitudinally, and the mobile frame is provided with a second rail extending transversely;

[0007] A trolley slidably connected to the second track of the moving frame so as to move with the moving frame and move laterally relative to the moving frame;

[0008] The guide tube is mounted on the trolley through a restraining mechanism to move with the trolley. The guide tube is arranged in a vertical direction and is lifted and lowered relative to the restraining mechanism in the vertical direction, so that the bottom end of the guide tube extends between the pile foundations when the guide tube descends, and the bottom end of the guide tube is retracted to a position above the top of the pile foundation when the guide tube ascends. During the lifting and lowering process of the guide tube, the restraining mechanism limits the lifting and lowering direction of the guide tube;

[0009] A suction head connected to the bottom end of the guide pipe for sucking sand between pile foundations;

[0010] The lifting component is used to drive the guide tube to rise and fall so as to adjust the working height of the suction head for sand suction between pile foundations.

[0011] In some embodiments, there are two second rails, and the portion of the movable frame located between the two second rails forms a first operating window that passes through the movable frame in a vertical direction; the trolley includes a movable frame, the movable frame is erected between the two second rails, the movable frame is limited to move within the range of the first operating window, the movable frame forms a second operating window that passes through the movable frame in a vertical direction, and the second operating window is connected to the first operating window; the constraint mechanism includes a constraint frame that is sleeved on the outside of the guide tube to constrain the lifting direction of the guide tube, and the constraint frame is installed in the second operating window so that the guide tube is limited to the second operating window and is limited to move within the range of the first operating window together with the movable frame.

[0012] In some embodiments, a guide rail extending in a vertical direction is provided on the outer periphery of the guide tube, and a limiting guide groove is provided on the side of the constraint frame facing the guide rail. The guide rail is accommodated in the limiting guide groove, and the groove wall of the limiting guide groove slides with the outer wall of the guide rail.

[0013] In some of the embodiments, the lifting mechanism includes a lifting and traction winch, a lifting and traction rope wound around the lifting and traction winch, and a fixed pulley; the lifting and traction winch is installed on the constraint frame and is located on one side of the guide tube, the fixed pulley is installed on the outer wall of the bottom end of the guide tube, and the free end of the lifting and traction rope is tied to the constraint frame after passing around the fixed pulley.

[0014] In some embodiments, a first slider and a limiting slider corresponding to the first slider are provided at the bottom of the movable frame, the first slider is slidably matched with the top surface of the second track, the limiting slider is detachably connected to the movable frame, and one side of the limiting slider extends to the bottom of the first slider to form a limiting groove between the limiting slider and the first slider for clamping the edge of the second track.

[0015] The cam is connected to the chassis and the cam is connected to the chassis to move the trolley in a lateral direction.

[0016] In some of the embodiments, the movable frame includes a top frame located at the top and a bottom frame located at the bottom; two track surfaces extending in the longitudinal direction are formed on the top of the top frame, and the two track surfaces are respectively close to the side edges of the second working window that are opposite in the transverse direction, and the outer walls of the constraint frame that are opposite in the transverse direction are respectively provided with blocks overlapped on the track surfaces, and the blocks slide with the track surfaces so that the constraint frame moves relative to the movable frame in the second working window in the longitudinal direction; the inner walls of the top frame that are opposite in the transverse direction are respectively provided with first slide grooves extending in the longitudinal direction, and the outer walls of the constraint frame that are opposite in the transverse direction are provided with second sliders that slide with the first slide grooves; the inner walls of the bottom frame that are opposite in the transverse direction are respectively provided with second slide grooves extending in the longitudinal direction, and the outer walls of the constraint frame that are opposite in the transverse direction are provided with third sliders that slide with the second slide grooves.

[0017] In some of the embodiments, a longitudinal drive assembly is connected between the constraint frame and the mobile frame for driving the constraint frame to move within the second working window. The longitudinal drive assembly includes a longitudinal traction winch, a longitudinal traction rope, a first longitudinal guide wheel and a second longitudinal guide wheel. The longitudinal traction winch is installed on the mobile frame. The two ends of the mobile frame in the longitudinal direction are respectively the first longitudinal end and the second longitudinal end. The first longitudinal guide wheel and the second longitudinal guide wheel are respectively installed on the first longitudinal end and the second longitudinal end of the mobile frame. The middle part of the longitudinal traction rope is wound around the longitudinal traction winch, and the two free ends of the longitudinal traction rope are connected to the constraint frame after passing around the first longitudinal guide wheel and the second longitudinal guide wheel respectively.

[0018] In addition, the present invention also provides a method for sucking sand during excavation between dock piles, which uses the winch suction system for excavation between dock piles described in any of the above technical solutions to suck sand during excavation between dock piles, comprising the following steps:

[0019] Preparation for the cutter suction: After setting up the cutter suction system for excavation between the dock piles as described in any of the above technical solutions on the top of the constructed dock pile foundation, the guide pipe is raised to a position above the pile foundation, and the cutter suction head is connected to the cutter suction power system;

[0020] The cutter suction head is put into position: the mobile frame is moved longitudinally to one longitudinal end of the wharf, the trolley is moved transversely to one transverse end of the mobile frame, and the guide pipe is lowered by the lifting assembly so that the cutter suction head extends to the position to be excavated between the pile foundations;

[0021] Sand suction by winch: Turn on the winch power system, drive the trolley to drive the winch head to move gradually in the horizontal direction, and use the winch head to continuously suck sand from the position where the winch head passes, so as to complete the excavation operation at the current working position of the mobile frame; when the trolley moves to the other end of the mobile frame in the horizontal direction, drive the mobile frame to move longitudinally to the next adjacent working position, and repeat the above-mentioned continuous sand suction operation at the current working position by using the winch head; according to the above process, drive the mobile frame to move gradually in the longitudinal direction, and repeat the above-mentioned continuous sand suction operation at each working position, until the mobile frame moves to the other end of the longitudinal direction of the wharf, and completes the excavation operation between the pile foundations under the wharf;

[0022] Recover the suction head: lift the guide tube via the lifting assembly to retract the suction head to a position above the top of the pile foundation.

[0023] In some of the embodiments, in the winch suction sand absorbing step, the guide tube is driven to rise and fall by the lifting assembly to adjust the operating height of the winch suction head for sand absorbing operation between the pile foundations in real time.

[0024] Compared with the prior art, the advantages and positive effects of the present invention are:

[0025] 1. The winch suction system for excavation between dock piles provided by the present invention is installed as a whole on the top of the dock pile foundation by setting a first track, the guide pipe is installed on the first track through the support of a trolley and a mobile frame, the winch suction head is connected to the bottom of the guide pipe, and the guide pipe is driven down by a lifting assembly, so that the winch suction head can be extended into between the pile foundations to suck sand, thereby realizing the excavation of backfill sand and dense original sand between the dock piles, with high excavation efficiency and low construction risk;

[0026] 2. In the winch suction system for excavation between dock piles provided by the present invention, the operating position of the winch suction head can be adjusted by moving the mobile frame along the first track and the trolley along the second track of the mobile frame, and the operating height of the winch suction head can be adjusted by driving the guide tube to rise and fall by the lifting assembly, so as to facilitate the control of excavation accuracy;

[0027] 3. The winch suction system for excavation between dock piles provided by the present invention has a simple structure and is easy to build and dismantle;

[0028] 4. The method for excavating and sucking sand between the piles of the wharf provided by the present invention sets up a winch suction system on the top of the wharf pile foundation, and lowers the winch suction head between the piles through the guide pipe of the winch suction system, so as to realize the excavation of backfill sand and dense original sand between the piles of the wharf, with low construction risk. Moreover, continuous winch suction excavation can be realized through the longitudinal movement of the mobile frame and the lateral movement of the trolley, and the excavation efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0030] Figure 1 A schematic diagram of the structure of a winch suction system for excavation between dock piles provided by one embodiment of the present invention;

[0031] Figure 2 A schematic diagram of the assembly structure of a moving frame and a first track in a winch suction system for excavation between dock piles provided by one embodiment of the present invention;

[0032] Figure 3 A stereoscopic view of the assembly of a trolley and a mobile frame in a winch suction system for excavation between dock piles provided by one embodiment of the present invention;

[0033] Figure 4 A top view of the assembly of a trolley and a movable frame in a winch suction system for excavation between dock piles provided by one embodiment of the present invention;

[0034] Figure 5 for Figure 3 A partial enlarged view of the middle A;

[0035] Figure 6 A schematic diagram of the assembly structure of the restraint frame and the trolley at an angle in a winch suction system for excavation between dock piles provided by one embodiment of the present invention;

[0036] Figure 7 A schematic diagram of the assembly structure of the restraint frame and the trolley at another angle in a winch suction system for excavation between dock piles provided by one embodiment of the present invention;

[0037] Figure 8 for Figure 6 A partial enlarged view of point B in the middle;

[0038] Fig. 9 for Figure 7 A partial enlarged view of point C in the middle;

[0039] Fig.10 for Figure 7 A partial enlarged view of point D in the middle;

[0040] Fig.11 A stereoscopic view of the assembly of a guide pipe and a restraining mechanism in a cutter suction system for excavation between dock piles provided by one embodiment of the present invention;

[0041] Fig.12 A top view of the assembly of a guide pipe and a restraining frame in a cutter suction system for excavation between dock piles provided by one embodiment of the present invention;

[0042] Fig.13 for Fig.11 A partial enlarged view of point E in the middle.

[0043] In the figure:

[0044] 1. Pile foundation; 2. Cutter suction system;

[0045] 21. suction head; 22. guide tube; 23. first track; 24. mobile frame; 25. trolley; 26. restraint mechanism; 27. lifting assembly;

[0046] 221, guide rail;

[0047] 241, second track; 242, travel wheel; 243, longitudinal drive motor; 244, transverse drive assembly; 2441, transverse traction winch; 2442, transverse traction rope; 2443, first transverse guide wheel; 2444, second transverse guide wheel;

[0048] 251, moving frame; 2511, top frame; 2512, bottom frame; 252, first slider; 253, limit slider; 254, longitudinal drive assembly; 2541, longitudinal traction winch; 2542, longitudinal traction rope; 2543, first longitudinal guide wheel; 2544, second longitudinal guide wheel;

[0049] 261, constraint frame; 262, limit guide groove; 263, step block; 264, second slider; 265, third slider;

[0050] 271. Lifting and traction winch; 272. Lifting and traction rope; 273. Fixed pulley;

[0051] a, first operating window; b, second operating window; c, track surface; d, first chute; e, second chute. DETAILED DESCRIPTION

[0052] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0053] In the description of the present invention, it is necessary to understand that the terms "lateral", "longitudinal", "upper", "lower", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0054] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features.

[0055] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0056] As attached Figure 1-Figure 13 As shown, in an exemplary embodiment of the winch suction system for excavation between piles of the wharf of the present invention, with the length direction of the wharf as the longitudinal direction and the width direction as the transverse direction, the winch suction system 2 for excavation between piles of the wharf includes a first rail 23, a moving frame 24, a trolley 25, a guide pipe 22, a winch suction head 21 and a lifting assembly 27; there are two first rails 23, the two first rails 23 are arranged parallel to each other, the first rails 23 extend in the longitudinal direction, and the first rails 23 are erected on the top of a plurality of pile foundations 1 arranged in the longitudinal direction; the moving frame 24 is erected between the two first rails 23 in the transverse direction, the moving frame 24 is slidably connected to the first rail 23 to move in the longitudinal direction, and the moving frame 24 is provided with a second rail 241 extending in the transverse direction; the trolley 25 is slidably connected to the second rail 241 of the moving frame 24 , so as to move with the mobile frame 24 and move horizontally relative to the mobile frame 24; the guide tube 22 is installed on the trolley 25 through the constraint mechanism 26 to move with the trolley 25, and the guide tube 22 is arranged in the vertical direction and rises and falls relative to the constraint mechanism 26 in the vertical direction, so that when the guide tube 22 descends, the bottom end of the guide tube 22 extends between the pile foundations 1, and when the guide tube 22 rises, the bottom end of the guide tube 22 is retracted to a position above the top of the pile foundation 1. During the lifting and lowering process of the guide tube 22, the constraint mechanism 26 limits the lifting and lowering direction of the guide tube 22; the suction head 21 is connected to the bottom end of the guide tube 22, and is used for sucking sand between the pile foundations 1; the lifting component 27 is used to drive the guide tube 22 to rise and fall, so as to adjust the working height of the suction head 21 for sucking sand between the pile foundations 1.

[0057] The above-mentioned suction system 2 for excavation between dock piles is installed as a whole on the top of the dock pile foundation 1 by setting the first track 23. The guide tube 22 is installed on the first track 23 through the support of the trolley 25 and the mobile frame 24. The suction head 21 is connected to the bottom of the guide tube 22. The guide tube 22 is driven down by the lifting component 27, so that the suction head 21 can be extended between the pile foundations 1 to suck sand, thereby realizing the excavation of backfill sand and dense original sand between the dock piles, with high excavation efficiency and low construction risk. Moreover, in the above-mentioned suction system 2 for excavation between dock piles, the working position of the suction head 21 can be adjusted by moving the mobile frame 24 along the first track 23 and the trolley 25 along the second track 241 of the mobile frame 24. The working height of the suction head 21 can be adjusted by driving the guide tube 22 to rise and fall by the lifting component 27, so as to facilitate the control of excavation accuracy. In addition, the above-mentioned suction system 2 for excavation between dock piles has a simple structure and is easy to build and dismantle.

[0058] like Figure 2-Figure 4 , Figure 6 As shown, in this embodiment, there are two second rails 241, and the portion of the moving frame 24 located between the two second rails 241 forms a first operating window a that passes through the moving frame 24 in the vertical direction; the trolley 25 includes a moving frame 251, and the moving frame 251 is erected between the two second rails 241. The moving frame 251 is limited to move within the range of the first operating window a, and the moving frame 251 forms a second operating window b that passes through the moving frame 251 in the vertical direction, and the second operating window b is connected to the first operating window a; the restraint mechanism 26 includes a restraint frame 261 that is sleeved on the outside of the guide tube 22 to restrain the lifting direction of the guide tube 22, and the restraint frame 261 is installed in the second operating window b, so that the guide tube 22 is limited to the second operating window b, and is restricted to move within the range of the first operating window a together with the moving frame 251. The trolley 25, the restraint mechanism 26 and the guide tube 22 are assembled on the movable frame 24 by the above-mentioned assembly method. The overall structure is stable and can ensure that the trolley 25 drives the guide tube 22 to move stably within the space range defined by the first operating window a of the movable frame 24, so as to ensure the stability of the suction head 21 during operation.

[0059] In order to prevent the trolley 25 from being separated from the second track 241 when moving along the second track 241 of the moving frame 24, as shown in FIG. Figure 5As shown, the bottom of the mobile frame 251 of the trolley 25 is provided with a first slider 252 and a limiting slider 253 corresponding to the first slider 252, the first slider 252 is slidably matched with the top surface of the second track 241, the limiting slider 253 is detachably connected to the mobile frame 251, and one side of the limiting slider 253 extends to the bottom of the first slider 252, so as to form a limiting groove for clamping the edge of the second track 241 between the limiting slider 253 and the first slider 252. By forming a limiting groove by the cooperation of the first slider 252 and the limiting slider 253 set at the bottom of the mobile frame 251 of the trolley 25, the edge of the second track 241 is clamped in the limiting groove, which can prevent the trolley 25 from being separated from the second track 241, and improve the structural stability. It should be noted that the outer surface of the sliding matching part of the first slider 252, the limiting slider 253 and the second track 241 is provided with a Hualong plate to reduce friction resistance.

[0060] Regarding the moving driving mode of the moving frame 24 along the first track 23, it should be noted that Figure 2 As shown, in this embodiment, the bottom of the mobile frame 24 is provided with a walking wheel 242 that rolls with the first track 23, and the walking wheel 242 is connected to a longitudinal drive motor 243 for driving the walking wheel 242 to rotate to drive the longitudinal movement of the mobile frame 24. The longitudinal drive motor 243 drives the walking wheel 242 to roll along the first track 23, thereby realizing the longitudinal movement of the mobile frame 24 along the first track 23.

[0061] Regarding the moving driving mode of the trolley 25 along the second track 241 of the moving frame 24, it should be noted that Figure 3As shown, in this embodiment, a transverse driving assembly 244 for driving the trolley 25 to move horizontally is connected between the mobile frame 251 and the mobile frame 24, and the transverse driving assembly 244 includes a transverse traction winch 2441, a transverse traction rope 2442, a first transverse guide wheel 2443 and a second transverse guide wheel 2444. The transverse traction winch 2441 is installed on the mobile frame 24, and the two ends of the mobile frame 24 in the transverse direction are respectively a first transverse end and a second transverse end, the first transverse guide wheel 2443 and the second transverse guide wheel 2444 are respectively installed on the first transverse end and the second transverse end of the mobile frame 24, the middle part of the transverse traction rope 2442 is wound around the transverse traction winch 2441, and the two free ends of the transverse traction rope 2442 are respectively connected to the mobile frame 251 after passing through the first transverse guide wheel 2443 and the second transverse guide wheel 2444. By rotating the transverse traction winch 2441 to tighten the part of the transverse traction rope 2442 wound around the first transverse guide wheel 2443 and loosening the part of the transverse traction rope 2442 wound around the second transverse guide wheel 2444, the movable frame 251 of the trolley 25 can be driven to move laterally toward the direction close to the first transverse guide wheel 2443; by rotating the transverse traction winch 2441 in the opposite direction to tighten the part of the transverse traction rope 2442 wound around the second transverse guide wheel 2444 and loosening the part of the transverse traction rope 2442 wound around the first transverse guide wheel 2443, the movable frame 251 of the trolley 25 can be driven to move laterally toward the direction close to the second transverse guide wheel 2444.

[0062] In order to reduce the movement frequency of the mobile frame 24, the sand suction operation in a larger range can be completed in one movement of the mobile frame 24. Figure 6 , Figure 7 , Fig. 9 and Fig.10As shown, the movable frame 251 includes a top frame 2511 located at the top and a bottom frame 2512 located at the bottom; two track surfaces c extending in the longitudinal direction are formed on the top of the top frame 2511, and the two track surfaces c are respectively close to the two side edges of the second working window b that are opposite in the transverse direction, and the outer walls on the two sides opposite in the transverse direction of the constraint frame 261 are respectively provided with blocks 263 overlapped on the track surfaces c, and the blocks 263 slide with the track surfaces c so that the constraint frame 261 moves relative to the movable frame 251 in the second working window b in the longitudinal direction; the inner walls on the two sides opposite in the transverse direction of the top frame 2511 are respectively provided with first slide grooves d extending in the longitudinal direction, and the outer walls on the two sides opposite in the transverse direction of the constraint frame 261 are provided with second sliders 264 slidingly matched with the first slide groove d; the inner walls on the two sides opposite in the transverse direction of the bottom frame 2512 are respectively provided with second slide grooves e extending in the longitudinal direction, and the outer walls on the two sides opposite in the transverse direction of the constraint frame 261 are provided with third sliders 265 slidingly matched with the second slide groove e. In this embodiment, the restraint frame 261 is moved longitudinally relative to the movable frame 251 of the trolley 25 in the second operation window b by the cooperation of the block 263 provided on the restraint frame 261 and the track surface c provided on the movable frame 251, the second slider 264 provided on the restraint frame 261 and the first slide groove d provided on the movable frame 251, and the third slider 265 provided on the restraint frame 261 and the second slide groove e provided on the movable frame 251. After the movable frame 24 is moved into position once, the restraint frame 261 is moved longitudinally relative to the movable frame 251 of the trolley 25 in the second operation window b, so that the restraint frame 261 can drive the guide tube 22 and the suction head 21 to move longitudinally within the range surrounded by the first operation window a and the second operation window b, thereby completing the sand suction operation in a larger range in one movement of the movable frame 24, and reducing the movement frequency of the movable frame 24. At the same time, in this embodiment, the constraint frame 261 is placed on the top frame 2511 of the mobile frame 251 through the block 263, so that the top frame 2511 of the mobile frame 251 can bear the weight of the guide tube 22 and the constraint frame 261, which is conducive to improving stability. It should also be noted that in this embodiment, the top frame 2511 and the bottom frame 2512 of the mobile frame 251 are both made of I-beams, and the top surface of the I-beam used in the top frame 2511 forms a track surface c, and the upper and lower wing plates of the I-beam used in the top frame 2511 form a first slide d, and the upper and lower wing plates of the I-beam used in the bottom frame 2512 form a second slide e; the outer surface of the sliding matching portion of the second slider 264 and the first slide d, and the outer surface of the sliding matching portion of the third slider 265 and the second slide e are both provided with Hualong plates to reduce friction resistance.

[0063] Regarding the driving mode of the restraining frame 261 relative to the moving frame 251 of the trolley 25, it should be noted that, Figure 8As shown, a longitudinal drive component 254 for driving the constraint frame 261 to move within the second working window b is connected between the constraint frame 261 and the mobile frame 251. The longitudinal drive component 254 includes a longitudinal traction winch 2541, a longitudinal traction rope 2542, a first longitudinal guide wheel 2543 and a second longitudinal guide wheel 2544. The longitudinal traction winch 2541 is installed on the mobile frame 251. The two ends of the mobile frame 251 in the longitudinal direction are respectively the first longitudinal end and the second longitudinal end. The first longitudinal guide wheel 2543 and the second longitudinal guide wheel 2544 are respectively installed on the first longitudinal end and the second longitudinal end of the mobile frame 251. The middle part of the longitudinal traction rope 2542 is wound around the longitudinal traction winch 2541. The two free ends of the longitudinal traction rope 2542 are respectively connected to the constraint frame 261 after passing through the first longitudinal guide wheel 2543 and the second longitudinal guide wheel 2544. By rotating the longitudinal traction winch 2541 to tighten the portion of the longitudinal traction rope 2542 wound around the first longitudinal guide wheel 2543 and loosening the portion of the longitudinal traction rope 2542 wound around the second longitudinal guide wheel 2544, the constraint frame 261 can be driven to move longitudinally in the direction close to the first longitudinal guide wheel 2543; by rotating the longitudinal traction winch 2541 in the opposite direction to tighten the portion of the longitudinal traction rope 2542 wound around the second longitudinal guide wheel 2544 and loosening the portion of the longitudinal traction rope 2542 wound around the first longitudinal guide wheel 2543, the constraint frame 261 can be driven to move longitudinally in the direction close to the second longitudinal guide wheel 2544.

[0064] In order to ensure the verticality of the guide tube 22 during lifting, Figure 11-13 As shown, in this embodiment, a guide rail 221 extending in the vertical direction is provided on the outer periphery of the guide tube 22, and a limiting guide groove 262 is provided on the side of the constraint frame 261 facing the guide rail 221. The guide rail 221 is accommodated in the limiting guide groove 262, and the groove wall of the limiting guide groove 262 is slidably matched with the outer wall of the guide rail 221. Through the cooperation between the guide rail 221 and the limiting guide groove 262, the guide tube 22 is guaranteed to rise and fall in the vertical direction. It should be noted that in order to ensure the verticality of the guide tube 22, there are at least two guide rails 221, and the two guide rails 221 are symmetrically arranged on the opposite sides of the guide tube 22. The number of limiting guide grooves 262 matched with each guide rail 221 is also at least 2, and the two limiting guide grooves 262 are respectively arranged near the top and bottom of the constraint frame 261.

[0065] Regarding the lifting and lowering driving method of the guide tube 22, it should be noted that Fig.11As shown, the lifting mechanism includes a lifting and traction winch 271, a lifting and traction rope 272 wound around the lifting and traction winch 271, and a fixed pulley 273; the lifting and traction winch 271 is installed on the constraint frame 261 and is located on one side of the guide tube 22, the fixed pulley 273 is installed on the outer wall of the bottom end of the guide tube 22, and the free end of the lifting and traction rope 272 is tied to the constraint frame 261 after passing around the fixed pulley 273. The lifting mechanism using the lifting and traction winch 271, the lifting and traction rope 272 and the fixed pulley 273 arranged on the outer wall of the guide tube 22 is convenient for lifting and lowering control and is conducive to ensuring excavation accuracy. When working, the lifting and traction winch 271 releases the lifting and traction rope 272 to drive the guide tube 22 to descend, and the lifting and traction winch 271 tightens the lifting and traction rope 272 to drive the guide tube 22 to rise.

[0066] In addition, it should be noted that the present embodiment can adopt a conventional suction head 21 in the art. The suction head 21 needs to be connected to a suction power system through pipelines, which is common knowledge in the art. The pipelines, suction power system, etc. required for the suction head 21 are not described in detail here.

[0067] Based on the above-mentioned winch suction system 2 for excavating between dock piles, the present invention further provides a method for sucking sand during excavation between dock piles, which uses the above-mentioned winch suction system 2 for excavating between dock piles to suck sand during excavation between dock piles, and includes the following steps:

[0068] S1. Preparation for dredging: After the dredging system 2 for excavation between pier piles is set up on the top of the constructed pier pile foundation 1, the guide pipe 22 is raised to a position above the pile foundation 1, and the dredging head 21 is connected to the dredging power system;

[0069] S2: The suction head is in place: the mobile frame 24 is moved longitudinally to one longitudinal end of the wharf, the trolley 25 is moved transversely to one transverse end of the mobile frame 24, and the guide pipe 22 is lowered by the lifting assembly 27, so that the suction head 21 extends into the position to be excavated between the pile foundations 1;

[0070] S3: start the suction power system, drive the trolley 25 to drive the suction head 21 to move gradually in the horizontal direction, and use the suction head 21 to continuously suck sand from the position where the suction head 21 passes, so as to complete the excavation operation at the current working position of the mobile frame 24; when the trolley 25 moves to the other end of the mobile frame 24 in the horizontal direction, drive the mobile frame 24 to move longitudinally to the next adjacent working position, and repeat the above-mentioned continuous sand suction operation at the current working position by using the suction head 21; according to the above process, drive the mobile frame 24 to move gradually in the longitudinal direction, and repeat the above-mentioned continuous sand suction operation at each working position, until the mobile frame 24 moves to the other end of the wharf in the longitudinal direction, and complete the excavation operation between the pile foundations 1 under the wharf;

[0071] S4: Recovering the suction head: raising the guide tube 22 by the lifting assembly 27 to retract the suction head 21 to a position above the top of the pile foundation 1.

[0072] The above-mentioned method for excavating and sucking sand between the wharf piles is to set up a winch suction system 2 on the top of the wharf pile foundation 1, and lower the winch suction head 21 between the piles through the guide pipe 22 of the winch suction system 2, so as to realize the excavation of backfill sand and dense original sand between the wharf piles, and the construction risk is low. Moreover, in the above-mentioned method for excavating and sucking sand between the wharf piles, continuous winch suction excavation can be realized through the longitudinal movement of the moving frame 24 and the lateral movement of the trolley 25, and the excavation efficiency is high.

[0073] It should be noted that in the above-mentioned method for sucking sand during excavation between dock piles, during the sand suction operation, when the moving frame 24 or the trolley 25 is moved, if the guide tube 22 cannot pass through due to the presence of a beam on the top of the dock pile foundation 1, the guide tube 22 is first raised by the lifting assembly 27 to allow the winch suction head 21 to be retracted to a position above the top of the pile foundation 1, and then moved; after passing the beam, the guide tube 22 is lowered by the lifting assembly 27 to allow the winch suction head 21 to extend to the position to be excavated between the pile foundations 1.

[0074] In order to control the excavation accuracy, in the sand suction step, the guide tube 22 is driven to rise and fall by the lifting assembly 27 to adjust the working height of the suction head 21 for sand suction between the pile foundations 1 in real time. At the same time, the lifting assembly 27 adjusts the working height of the suction head 21 in real time, so that the suction head 21 can be controlled to be in a non-pressurized state at all times, thereby preventing the suction head 21 from being deformed due to load bearing.

[0075] Finally, it should be noted that: the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0076] The above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the specific implementation methods of the present invention can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the present invention, which should be included in the scope of the technical solution for protection of the present invention.

Claims

1. A suction system for excavation between dock piles, characterized in that: Taking the length direction of the wharf as the longitudinal direction and the width direction as the transverse direction, the winch suction system for excavation between wharf piles includes: Two first rails, the two first rails are arranged parallel to each other, the first rails extend in the longitudinal direction, and the first rails are erected on top of a plurality of pile foundations arranged in the longitudinal direction; A movable frame, which is erected between the two first rails in a transverse direction, the movable frame is slidably connected to the first rails to move in a longitudinal direction, and the movable frame is provided with a second rail extending in a transverse direction; A trolley, which is slidably connected to the second track of the mobile frame to move with the mobile frame and move laterally relative to the mobile frame; A guide tube, which is mounted on the trolley through a restraining mechanism so as to move with the trolley, the guide tube is arranged in a vertical direction and is lifted and lowered relative to the restraining mechanism in the vertical direction, so that when the guide tube is lowered, the bottom end of the guide tube is extended between the pile foundations, and when the guide tube is raised, the bottom end of the guide tube is retracted to a position above the top of the pile foundation, and during the lifting and lowering process of the guide tube, the restraining mechanism limits the lifting and lowering direction of the guide tube; A suction head connected to the bottom end of the guide pipe and used for sucking sand between the pile foundations; A lifting assembly, used for driving the guide tube to move up and down, so as to adjust the working height of the suction head for sand suction between the pile foundations; There are two second rails, and a first operating window is formed on the portion of the moving frame located between the two second rails and passing through the moving frame in a vertical direction; the trolley includes a moving frame, which is mounted between the two second rails, and the moving frame is limited to move within the range of the first operating window, and the moving frame is formed with a second operating window passing through the moving frame in a vertical direction, and the second operating window is connected to the first operating window; the restraint mechanism includes a restraint frame which is sleeved outside the guide tube to restrain the lifting direction of the guide tube, and the restraint frame is installed in the second operating window so that the guide tube is restricted to the second operating window and is restricted to move within the range of the first operating window together with the moving frame; The outer periphery of the guide tube is provided with a guide rail extending in the vertical direction, and the side of the constraint frame facing the guide rail is provided with a limiting guide groove, the guide rail is accommodated in the limiting guide groove, and the groove wall of the limiting guide groove is slidably matched with the outer wall of the guide rail; A first slider and a limiting slider corresponding to the first slider are provided at the bottom of the movable frame. The first slider is slidably matched with the top surface of the second track. The limiting slider is detachably connected to the movable frame. One side of the limiting slider extends to the bottom of the first slider to form a limiting groove for clamping the edge of the second track between the limiting slider and the first slider.

2. The winch suction system for excavation between dock piles according to claim 1 is characterized in that: The lifting mechanism includes a lifting and traction winch, a lifting and traction rope wound around the lifting and traction winch, and a fixed pulley; the lifting and traction winch is installed on the constraint frame and is located on one side of the guide tube, the fixed pulley is installed on the outer wall of the bottom end of the guide tube, and the free end of the lifting and traction rope is tied to the constraint frame after passing around the fixed pulley.

3. The winch suction system for excavation between dock piles according to claim 1, characterized in that: The cam is connected with the driving mechanism that the trolley is connected with the driving mechanism, and the cam is connected with the transmission mechanism, and the cam is connected with the transmission mechanism, and the cam is connected with the transmission mechanism, and the cam is connected with the transmission mechanism.

4. The winch suction system for excavation between dock piles according to claim 1, characterized in that: The movable frame includes a top frame located at the top and a bottom frame located at the bottom; two track surfaces extending in the longitudinal direction are formed on the top of the top frame, and the two track surfaces are respectively close to the side edges of the second working window that are opposite in the transverse direction, and the side outer walls of the constraint frame that are opposite in the transverse direction are respectively provided with blocks overlapped with the track surfaces, and the blocks are slidably matched with the track surfaces so that the constraint frame moves relative to the movable frame in the second working window in the longitudinal direction; the side inner walls of the top frame that are opposite in the transverse direction are respectively provided with first slide grooves extending in the longitudinal direction, and the side outer walls of the constraint frame that are opposite in the transverse direction are provided with second sliders slidably matched with the first slide grooves; the side inner walls of the bottom frame that are opposite in the transverse direction are respectively provided with second slide grooves extending in the longitudinal direction, and the side outer walls of the constraint frame that are opposite in the transverse direction are provided with third sliders slidably matched with the second slide grooves.

5. The winch suction system for excavation between dock piles according to claim 4, characterized in that: A longitudinal drive assembly for driving the constraint frame to move within the second working window is connected between the constraint frame and the mobile frame, and the longitudinal drive assembly includes a longitudinal traction winch, a longitudinal traction rope, a first longitudinal guide wheel and a second longitudinal guide wheel. The longitudinal traction winch is installed on the mobile frame, and the two ends of the mobile frame in the longitudinal direction are respectively a first longitudinal end and a second longitudinal end. The first longitudinal guide wheel and the second longitudinal guide wheel are respectively installed on the first longitudinal end and the second longitudinal end of the mobile frame. The middle part of the longitudinal traction rope is wound around the longitudinal traction winch, and the two free ends of the longitudinal traction rope are connected to the constraint frame after passing around the first longitudinal guide wheel and the second longitudinal guide wheel respectively.

6. A method for sucking sand during excavation between dock piles, characterized in that: The method of using the cutter suction system for excavating between dock piles as claimed in any one of claims 1 to 5 to excavate and suck sand between dock piles comprises the following steps: Preparation for the cutter suction: after setting up the cutter suction system for excavation between dock piles as claimed in any one of claims 1 to 5 on the top of the constructed dock pile foundation, the guide pipe is raised to a position above the pile foundation, and the cutter suction head is connected to the cutter suction power system; The suction head is put into position: the mobile frame is moved longitudinally to one longitudinal end of the wharf, the trolley is moved transversely to one transverse end of the mobile frame, and the guide pipe is lowered by the lifting assembly so that the suction head is extended to the position to be excavated between the pile foundations; Sand suction by cutting: start the cutting suction power system, drive the trolley to drive the cutting suction head to move gradually in the lateral direction, and use the cutting suction head to continuously suck sand from the position where the cutting suction head passes, so as to complete the excavation operation at the current working position of the mobile frame; When the trolley moves to the other end of the mobile frame in the horizontal direction, the mobile frame is driven to move longitudinally to the next adjacent working position, and the above-mentioned continuous sand suction operation is repeated by using the suction head at the current working position; according to the above process, the mobile frame is driven to move longitudinally step by step, and the above-mentioned continuous sand suction operation is repeated at each working position until the mobile frame moves to the other end of the wharf in the longitudinal direction, and the excavation operation between the pile foundations under the wharf is completed; Recovering the suction head: raising the guide tube by the lifting assembly so as to retract the suction head to a position above the top of the pile foundation.

7. The sand suction method for excavating between dock piles according to claim 6, characterized in that: In the winch and sand suction step, the guide tube is driven to rise and fall by the lifting assembly to adjust the operating height of the winch and sand suction head between the pile foundations in real time.

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