CN113202099A - Hydraulic circular cutting device and method for interior of pile head of prestressed pipe pile - Google Patents
Hydraulic circular cutting device and method for interior of pile head of prestressed pipe pile Download PDFInfo
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- CN113202099A CN113202099A CN202110481493.5A CN202110481493A CN113202099A CN 113202099 A CN113202099 A CN 113202099A CN 202110481493 A CN202110481493 A CN 202110481493A CN 113202099 A CN113202099 A CN 113202099A
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Abstract
The invention provides a hydraulic ring cutting device and method for the interior of a pile head of a prestressed pipe pile, which comprises a telescopic positioning device and a cutting device, wherein the cutting device extends into the pipe pile through the telescopic positioning device, the cutting device comprises a fixing mechanism and a cutting mechanism, the fixing mechanism comprises a cylindrical fixed block with a plurality of movable outer supporting pieces on a column body, the fixed block comprises a horizontally arranged turntable with a plurality of chutes and a rotary groove for accommodating the turntable to rotate, the movable outer supporting pieces are movably connected with the turntable through the chutes, each movable outer supporting piece comprises a horizontal sliding rod in sliding connection with the column body, one end of the horizontal sliding rod extends into the column body, the other end of the horizontal sliding rod extends out of the column body, each movable outer supporting piece further comprises a shifting column and an outer supporting rod which are respectively arranged inside and outside the column body and are connected with the end part of the horizontal sliding rod, the shifting column is inserted into the chutes and can move along the chutes, the fixed block further comprises a chute which is communicated with the outer wall and is used for accommodating the horizontal sliding rod, and a sliding chute for accommodating the shifting column to move And (4) carrying out the following steps.
Description
Technical Field
The invention belongs to the technical field of building construction, and particularly relates to a hydraulic circular cutting device and method for the interior of a pile head of a prestressed pipe pile.
Background
At present, the pile head of the prestressed pipe pile is mostly dug from one side of a foundation by using an excavator, the digging depth is up to a design requirement elevation, 100mm protective soil is reserved on the pile side, after an engineering pile is dug out of a bearing platform, the earth around the pile head is cleaned as much as possible (the excavator is noticed not to collide the pile head), then the elevation of the pile head is determined by using a level gauge and popped out by using ink lines, and a method for manually cutting the pile by using a hoop type circular disk cutting machine is adopted. The method has the problems of high pile body strength, pile core steel bars positioned on the outer side wall of the pile body, high pile cutting difficulty, low pile cutting speed and low efficiency. Meanwhile, in the process of earth excavation, due to the disturbance of large machinery and the limitation of an operation space, the engineering pile is easy to be collided by an excavator and extruded by the lateral pressure of silt soil to cause the inclination or deviation of a pile body.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide the hydraulic circular cutting device in the pile head of the prestressed pipe pile, which is simple to operate, convenient to cut the pile and high in pile cutting efficiency, can cut the pipe pile before earth excavation, enables the pipe pile at the upper end to be separated from the pipe pile at the lower end, does not cause the phenomenon that the pile body at the bottom is inclined or deviated even if the excavator touches the pipe pile during excavation, can improve the engineering quality and is convenient to store.
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides an inside hydraulic pressure girdling device of prestressing force tubular pile head, includes flexible positioner and cutting device, cutting device stretches into in the tubular pile through flexible positioner, cutting device includes fixed establishment and cutting mechanism, fixed establishment includes the fixed block of a plurality of movable external support piece of cylindrical and shaft area, including the carousel of taking a plurality of chutes of horizontal arrangement and holding carousel pivoted turn-trough in the fixed block, movable external support piece passes through chute and carousel swing joint, movable external support piece includes the horizontal slide bar with shaft sliding connection, horizontal slide bar one end stretches into in the shaft, the other end stretches out outside the shaft, movable external support piece still includes set up respectively in the shaft and with the column end connection dial post and outer bracing piece, dial in the post inserts the chute and can follow the chute and move, the fixed block still includes the gliding spout of horizontal slide bar of holding that communicates with the outer wall and holds the slide that the column moved, the sliding groove, the sliding way and the rotating groove are sequentially communicated, the fixing mechanism further comprises a hydraulic motor connected with the rotating disc in a transmission mode, and the cutting mechanism is hydraulically connected with the hydraulic motor.
Further, the movable outer supporting piece and the rotary table are respectively arranged at the middle part of the fixed block and close to the bottom position, the fixing mechanism further comprises a connecting block arranged at the bottom of the fixed block, the hydraulic motor is arranged at the top of the connecting block, the cutting mechanism comprises a fixed disc arranged at the bottom of the connecting block and a plurality of hydraulic cutting pieces arranged at the side edge of the fixed disc at intervals in an annular mode, and each hydraulic cutting piece comprises a hydraulic cylinder and a crushing head. The quantity and the position of activity external stay piece all with the chute one-to-one, 4 are arranged to preferred chute law, it moves along the chute to rotate drive activity external stay piece through the carousel, it is fixed to realize the external stay to the tubular pile inner wall, in order to guarantee cutting mechanism's stability, thereby realize accurate cutting to the tubular pile inner wall, hydraulic motor inlays in the connecting block top, be connected bottom the carousel through the pivot, hydraulic pressure cutting piece annular interval arranges, drive through the pneumatic cylinder can make broken head extrude to the tubular pile inner wall from inside to outside, make the tubular pile receive the extrusion fracture, thereby realize inside circular cutting, and the operation is thus simple, be convenient for cut the stake and cut a efficient, convenient and practical.
Further, the crushing head is of a conical structure. The conical structure can improve the pile cutting efficiency, and is simple in structure, convenient and practical.
Further, flexible positioner includes the casing and is located the board of placing of casing bottom, including servo motor, square post and the fixed plate of arranging along the horizontal direction in the casing, square post one end is connected with the servo motor output, and the other end rotates with the fixed plate to be connected, square post still overlaps the sleeve of twining wire rope, the sleeve tip is provided with the fender dish, wire rope's free end passes to place the board and is connected with the fixing device top. The sleeve has the square through hole that matches with square post, can guarantee that it realizes transferring or coiling to wire rope along with the rotation of square post, and then realize transferring or withdrawing to cutting device, the wire rope structure has the advantage that the stroke is big, be applicable to the depth of cut demand of different tubular piles, and cutting device withdraws back whole device space little, be convenient for remove and accomodate, it all is fixed in and places the board top to prefer servo motor and fixed plate, place the board including the through-hole that holds wire rope and pass, the fender dish is used for preventing that wire rope from breaking away from the sleeve, moreover, the steam generator is simple in structure, convenience and practicability, the cutting that is applicable to the different degree of depth tubular piles.
Further, still include in the casing near top position and square post parallel arrangement's reciprocal lead screw and connect reciprocal lead screw and telescopic horizontal moving member, horizontal moving member includes slider, connecting rod and the solid fixed ring that matches with reciprocal lead screw, gu the fixed ring is with the baffle rotatable coupling of sleeve one end, the square post other end has still cup jointed first synchronous pulley, reciprocal lead screw cup jointed the second synchronous pulley who passes through the hold-in range with first synchronous pulley and is connected. Reciprocating screw rod rotates with shells inner wall to be connected, the sleeve is when the rolling, square post rotates, it rotates to drive reciprocating screw rod through first synchronous pulley and second synchronous pulley, make the slider along with reciprocating screw rod's rotation horizontal migration, and then drive solid fixed ring horizontal motion through the connecting rod, gu fixed ring and sleeve one end baffle rotatable coupling, both can drive sleeve along square post horizontal direction one end, can not influence the sleeve again and rotate along with square post rotation, can guarantee that wire rope keeps perpendicular with the through-hole, convenient rolling, easy operation.
Further, the top still includes the slide rail with reciprocal lead screw parallel arrangement in the casing, the slider top includes the slide rail piece that matches with the slide rail. The slide rail and the slider further guarantee the stability that the sleeve removed along square post horizontal direction, the wire rope's of being convenient for rolling and transferring, simple structure easily operates.
Further, flexible positioner bottom still includes the fixture block of falling T shape, horizontal sliding bar top fixedly connected with stretches out the kelly of the type of falling L at fixed block top, the kelly removes along with horizontal sliding bar and realizes fixed with the fixture block, the fixed block is still including holding the recess that the kelly removed, recess intercommunication fixed block top and spout. Preferably, the inverted T-shaped clamping block is arranged below the through hole of the placing plate, the free end of the steel wire rope passes through the through hole and the clamping block and then is connected with the fixing device, the clamping rod can move along with the movement of the movable external support piece, when the movable external support part moves towards the inner wall direction of the tubular pile, the clamping rod moves along with the movable external support part towards the direction away from the clamping block, and the clamping rod and the clamping block are in a separated state, can perform the telescopic operation of the cutting device, when the movable external supporting piece moves towards the direction far away from the inner wall of the tubular pile, the clamping rod moves towards the direction close to the clamping block, at the moment, the steel wire rope is firstly controlled to be wound until the top of the clamping rod contacts the bottom of the placing plate, then the hydraulic motor is driven to clamp the clamping rod and the clamping block, can be fixed with flexible positioner and cutting device combination, make things convenient for this device of global movement to accomodate, only need a hydraulic motor can realize outer fixed function of propping and fix and accomodate the function, save space and cost, easy operation.
Further, flexible positioner top is including the lug that the tower crane of being convenient for is connected. The lifting lug is convenient for connect the tower crane to the realization is to the holistic removal of device, simple structure, convenient and practical.
Furthermore, the bottom of the telescopic positioning device comprises a limiting ring used for limiting the tubular pile. After the whole device is placed, the top of the tubular pile is positioned inside the limiting ring, so that the stability of the device placed in the tubular pile can be guaranteed, and the pile cutting efficiency and the cutting accuracy are guaranteed.
The invention also provides a method for utilizing the hydraulic ring cutting device in the pile head of the prestressed pipe pile, which comprises the following steps:
1) hoisting the telescopic positioning device and the cutting device to the square of the tubular pile through a tower crane, and aligning the central position of the tubular pile;
2) placing the bottom of the telescopic positioning device on the top of the tubular pile, and lowering the cutting device through the telescopic positioning device until the cutting mechanism moves to the circular cutting position;
3) a hydraulic motor is started to control the rotary table to rotate, so that the shifting column moves along the chute, the horizontal sliding rod and the outer support rod are driven to move towards the inner wall of the tubular pile to realize outer support fixation, and the position of the cutting mechanism is ensured to be stable;
4) the inner wall of the tubular pile is extruded and cut from inside to outside by opening a cutting mechanism, so that the tubular pile is extruded and broken, and internal circular cutting is realized;
5) and starting the hydraulic motor to withdraw the movable outer support piece, lifting and withdrawing the cutting device through the telescopic positioning device, fixing the cutting device and the bottom of the telescopic positioning device, and completing the recovery and storage of the device.
Compared with the prior art, the invention has the beneficial effects that:
the pile cutting machine is simple to operate, convenient to cut piles and high in pile cutting efficiency, the tubular piles can be cut before earth excavation, so that the tubular piles at the upper end are separated from the tubular piles at the lower end, even if the tubular piles are touched by an excavator during excavation, the phenomenon that the pile body at the bottom is inclined or deviated can not be caused, the engineering quality can be improved, and the pile cutting machine is convenient to store. The telescopic positioning device is used for lowering or withdrawing the cutting device, the telescopic positioning device is placed at the top of the tubular pile when the cutting device is used, the cutting device extends into the tubular pile, and the tubular pile can be cut before earth excavation; the fixing mechanism is used for externally supporting and fixing the inner wall of the tubular pile through the movable external supporting piece, so that the stability of the cutting mechanism is ensured, and the pile cutting accuracy is ensured; the movable outer support piece can move towards the direction close to or away from the inner wall of the tubular pile along with the difference of the rotation directions of the rotary table, the chute of the rotary table is used for limiting the movement path of the movable outer support piece, the movable outer support piece moves along the chute along with the rotation of the rotary table through the shifting column, so that the horizontal sliding rod pushes the outer support rod towards the direction of the tubular wall or keeps away from the direction of the tubular wall to withdraw the outer support rod, the fixing or loosening of the inner wall of the tubular pile can be realized quickly, the rubber layer with increased friction force is arranged on the contact surface of the outer support rod and the inner wall of the tubular pile at the same time, the cutting stability of the cutting device can be further ensured, and the cutting quality and efficiency are ensured.
Drawings
Fig. 1 is a sectional view showing the overall structure of the present invention.
Fig. 2 is a structural sectional view of the telescopic positioning device of the invention.
Fig. 3 is a structural sectional view of the fixing mechanism of the present invention.
FIG. 4 is a schematic view of the turntable structure of the present invention.
Wherein, 1-tubular pile, 2-placing plate, 3-telescopic positioning device, 31-shell, 32-servo motor, 33-square column, 34-fixing plate, 35-sleeve, 36-baffle disc, 37-steel wire rope, 38-reciprocating screw rod, 39-slide block, 310-slide rail, 311-slide rail block, 312-first synchronous pulley, 313-second synchronous pulley, 314-fixing ring, 315-connecting rod, 4-fixing mechanism, 41-fixing block, 42-sliding chute, 43-horizontal sliding rod, 44-external bracing rod, 45-sliding way, 46-rotating chute, 47-connecting block, 48-hydraulic motor, 49-rotating disc, 410-sliding chute, 411-shifting column, 5-fixing disc, 6-hydraulic cylinder, 7-crushing head, 8-clamping block, 9-groove, 10-clamping rod, 11-lifting lug and 12-limiting ring.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the following embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
The present invention is further illustrated by the following examples, which are not to be construed as limiting the invention.
Shown in the figure is a inside hydraulic pressure ring cutting device of prestressing force tubular pile head, including flexible positioner 3 and cutting device, cutting device stretches into tubular pile 1 through flexible positioner 3, cutting device includes fixed establishment 4 and cutting mechanism, fixed establishment 4 includes that cylindrical and shaft area a plurality of activity external stay's fixed block 41, including the carousel 49 of taking a plurality of chutes 410 and holding carousel 49 pivoted turn-trough 46 of horizontal arrangement in the fixed block 41, activity external stay passes through chute 410 and carousel 49 swing joint, activity external stay includes the horizontal slide bar 43 with shaft sliding connection, horizontal slide bar 43 one end stretches into in the shaft, the other end stretches out outside the shaft, activity external stay still includes setting up respectively inside and outside the shaft and with horizontal slide bar 43 end connection's group post 411 and external stay 44, group post 411 inserts in chute 410 and can move along chute 410, fixed block 41 still includes the gliding spout 42 of holding horizontal slide bar 43 that communicates with the outer wall and holds group post 411 and move The slide way 45, the slide way 42, the slide way 45 and the rotary groove 46 are communicated in sequence, the fixing mechanism 4 further comprises a hydraulic motor 48 in transmission connection with a rotary disc 49, and the cutting mechanism is in hydraulic connection with the hydraulic motor 48. The telescopic positioning device is used for lowering or withdrawing the cutting device, the telescopic positioning device is placed at the top of the tubular pile when the cutting device is used, the cutting device extends into the tubular pile, and the tubular pile can be cut before earth excavation; the fixing mechanism is used for externally supporting and fixing the inner wall of the tubular pile through the movable external supporting piece, so that the stability of the cutting mechanism is ensured, and the pile cutting accuracy is ensured; the movable outer support piece can move towards the direction close to or away from the inner wall of the tubular pile along with the difference of the rotation directions of the rotary table, the chute of the rotary table is used for limiting the movement path of the movable outer support piece, the movable outer support piece moves along the chute along with the rotation of the rotary table through the shifting column, so that the horizontal sliding rod pushes the outer support rod towards the direction of the tubular wall or keeps away from the direction of the tubular wall to withdraw the outer support rod, the fixing or loosening of the inner wall of the tubular pile can be realized quickly, the rubber layer with increased friction force is arranged on the contact surface of the outer support rod and the inner wall of the tubular pile at the same time, the cutting stability of the cutting device can be further ensured, and the cutting quality and efficiency are ensured. The pile cutting machine is simple to operate, convenient to cut piles and high in pile cutting efficiency, the tubular piles can be cut before earth excavation, so that the tubular piles at the upper end are separated from the tubular piles at the lower end, even if the tubular piles are touched by an excavator during excavation, the phenomenon that the pile body at the bottom is inclined or deviated can not be caused, the engineering quality can be improved, and the pile cutting machine is convenient to store.
Preferably, the movable outer supporting piece and the rotary disc 49 are respectively arranged in the middle of the fixed block 41 and near the bottom, the fixing mechanism 4 further comprises a connecting block 47 arranged at the bottom of the fixed block 41, the hydraulic motor 48 is arranged at the top of the connecting block 47, the cutting mechanism comprises a fixed disc 5 arranged at the bottom of the connecting block 47 and a plurality of hydraulic cutting pieces annularly arranged at the side edge of the fixed disc 5 at intervals, and each hydraulic cutting piece comprises a hydraulic cylinder 6 and a crushing head 7. The quantity and the position of activity external stay piece all with the chute one-to-one, 4 are arranged to preferred chute law, it moves along the chute to rotate drive activity external stay piece through the carousel, it is fixed to realize the external stay to the tubular pile inner wall, in order to guarantee cutting mechanism's stability, thereby realize accurate cutting to the tubular pile inner wall, hydraulic motor inlays in the connecting block top, be connected bottom the carousel through the pivot, hydraulic pressure cutting piece annular interval arranges, drive through the pneumatic cylinder can make broken head extrude to the tubular pile inner wall from inside to outside, make the tubular pile receive the extrusion fracture, thereby realize inside circular cutting, and the operation is thus simple, be convenient for cut the stake and cut a efficient, convenient and practical.
Preferably, the crushing head 7 is of conical configuration. The conical structure can improve the pile cutting efficiency, and is simple in structure, convenient and practical.
Preferably, the telescopic positioning device 3 comprises a housing 31 and a placing plate 2 located at the bottom of the housing 31, the housing 31 comprises a servo motor 32, a square column 33 and a fixing plate 34 which are arranged along the horizontal direction, one end of the square column 33 is connected with the output end of the servo motor 32, the other end of the square column 33 is rotatably connected with the fixing plate 34 through a bearing, the square column 33 is further sleeved with a sleeve 35 wound with a steel wire rope 37, a blocking disc 36 is arranged at the end of the sleeve 35, and the free end of the steel wire rope 37 penetrates through the placing plate 2 to be connected with the top of the fixing device 4. The sleeve has the square through hole that matches with square post, can guarantee that it realizes transferring or coiling to wire rope along with the rotation of square post, and then realize transferring or withdrawing to cutting device, the wire rope structure has the advantage that the stroke is big, be applicable to the depth of cut demand of different tubular piles, and cutting device withdraws back whole device space little, be convenient for remove and accomodate, it all is fixed in and places the board top to prefer servo motor and fixed plate, place the board including the through-hole that holds wire rope and pass, the fender dish is used for preventing that wire rope from breaking away from the sleeve, moreover, the steam generator is simple in structure, convenience and practicability, the cutting that is applicable to the different degree of depth tubular piles.
Preferably, the housing 31 further includes a reciprocating screw rod 38 disposed parallel to the square column 33 near the top, and a horizontal moving member connecting the reciprocating screw rod 38 and the sleeve 35, the horizontal moving member includes a sliding block 39 matching with the reciprocating screw rod 38, a connecting rod 315 and a fixing ring 314, the fixing ring 314 is rotatably connected to the baffle 36 at one end of the sleeve 35, the other end of the square column 33 is further sleeved with a first synchronous pulley 312, and the reciprocating screw rod 38 is sleeved with a second synchronous pulley 313 connected to the first synchronous pulley 312 through a synchronous belt. Reciprocating screw rod rotates with shells inner wall to be connected, the sleeve is when the rolling, square post rotates, it rotates to drive reciprocating screw rod through first synchronous pulley and second synchronous pulley, make the slider along with reciprocating screw rod's rotation horizontal migration, and then drive solid fixed ring horizontal motion through the connecting rod, gu fixed ring and sleeve one end baffle rotatable coupling, both can drive sleeve along square post horizontal direction one end, can not influence the sleeve again and rotate along with square post rotation, can guarantee that wire rope keeps perpendicular with the through-hole, convenient rolling, easy operation.
Preferably, the top of the housing 31 further includes a slide rail 310 arranged parallel to the reciprocating screw rod 38, and the top of the slide block 39 includes a slide rail block 311 matching with the slide rail 310. The slide rail and the slider further guarantee the stability that the sleeve removed along square post horizontal direction, the wire rope's of being convenient for rolling and transferring, simple structure easily operates.
Preferably, the bottom of the telescopic positioning device 3 further includes an inverted T-shaped clamping block 8, the top of the horizontal sliding rod 43 is fixedly connected with an inverted L-shaped clamping rod 10 extending out of the top of the fixing block 41, the clamping rod 10 moves along with the horizontal sliding rod 43 to be clamped and fixed with the clamping block 8, the fixing block 41 further includes a groove 9 for accommodating the movement of the clamping rod 10, and the groove 9 is communicated with the top of the fixing block 41 and the sliding groove 42. The clamping block with the reverse T shape is preferably arranged below the through hole of the placing plate, the free end of the steel wire rope penetrates through the through hole and the clamping block and then is connected with the fixing device, the clamping rod is arranged at the middle part of the horizontal sliding rod and can move along with the movement of the movable external supporting piece, when the movable external supporting piece moves towards the inner wall direction of the tubular pile, the clamping rod moves along with the movable external supporting piece towards the direction far away from the clamping block, the clamping rod and the clamping block are in a separation state at the moment, the telescopic operation on the cutting device can be carried out, when the movable external supporting piece moves towards the direction far away from the inner wall of the tubular pile, the clamping rod moves towards the direction close to the clamping block, at the moment, the steel wire rope is firstly controlled to be wound to the top of the clamping rod to be in contact with the bottom of the placing plate, then the hydraulic motor is driven to clamp the clamping rod and the clamping block, the telescopic positioning device and the cutting device can be combined and fixed, the whole device can be conveniently moved for containing, and the external supporting and fixing function and the fixed containing function can be realized only by one hydraulic motor, saving space and cost and simple operation.
Preferably, the top of the telescopic positioning device 3 comprises a lifting lug 11 convenient for tower crane connection. The lifting lug is convenient for connect the tower crane to the realization is to the holistic removal of device, simple structure, convenient and practical.
Preferably, the bottom of the telescopic positioning device 3 comprises a limiting ring 12 for limiting the tubular pile 1. After the whole device is placed, the top of the tubular pile is positioned inside the limiting ring, so that the stability of the device placed in the tubular pile can be guaranteed, and the pile cutting efficiency and the cutting accuracy are guaranteed.
The invention also provides a method for utilizing the hydraulic ring cutting device in the pile head of the prestressed pipe pile, which comprises the following steps:
1) hoisting the telescopic positioning device 3 and the cutting device to the upper part of the tubular pile 1 through a tower crane, and aligning the central position of the tubular pile 1;
2) placing the bottom of a telescopic positioning device 3 on the top of a tubular pile 1, placing a cutting device through the telescopic positioning device 3 until a cutting mechanism moves to a circular cutting position, specifically, placing a placing plate 2 on the top of the tubular pile 1, and enabling the top of the tubular pile 1 to be located in a limiting ring 12, then starting a hydraulic motor 48 to enable a movable outer support piece to move towards the direction of a pipe wall so as to separate a clamping rod 10 from a clamping block, and after the limiting on the cutting device is removed, controlling a servo motor 32 to rotate so as to drive a square column 33 and a sleeve 35 to rotate, so that a steel wire rope 37 and the cutting device are placed;
3) starting a hydraulic motor 48 to control a rotary table 49 to rotate, so that a shifting column 411 moves along a chute 410, and a horizontal sliding rod 43 and an outer support rod 44 are driven to move towards the inner wall of the tubular pile 1 to realize outer support fixation, so as to ensure the position stability of a cutting mechanism;
4) the inner wall of the tubular pile 1 is extruded and cut from inside to outside by opening a cutting mechanism, so that the tubular pile 1 is extruded and broken to realize internal circular cutting, and specifically, the hydraulic cylinder 6 and the crushing head 7 are controlled by a hydraulic motor 48 to perform circular cutting;
5) turning on the hydraulic motor 48 to rotate the turntable 49 in the opposite direction to retract the movable outer supporting member, lifting and retracting the cutting device through the telescopic positioning device 3, fixing the cutting device and the bottom of the telescopic positioning device 3, completing the recovery and storage of the device, specifically, after the circular cutting is completed, turning on the hydraulic motor 48 to make the outer supporting rod 44 leave the inner wall of the tubular pile 1, namely, temporarily closing the hydraulic motor 48, controlling the servo motor 32 to drive the sleeve 35 to wind the steel wire rope 37, further driving the cutting device to lift upwards until the bottom of the clamping block 8 contacts the top of the fixing block 41 or the top of the clamping rod 10 contacts the bottom of the placing plate 2, at this time, the transverse part of the clamping rod 10 is located at the upper end of the clamping block 8, and turning on the hydraulic motor 48 again to make the clamping rod 10 move towards the direction close to the clamping block 8, thereby fixing the cutting device and the telescopic positioning device 3.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention.
Claims (10)
1. The utility model provides an inside hydraulic pressure girdling device of prestressing force tubular pile head, includes flexible positioner (3) and cutting device, cutting device stretches into tubular pile (1) through flexible positioner (3) in, its characterized in that: cutting device includes fixed establishment (4) and cutting mechanism, fixed establishment (4) include that cylindrical and shaft take fixed block (41) of a plurality of activities outer support piece, including carousel (49) of taking a plurality of chutes (410) and holding carousel (49) pivoted turn-trough (46) that the level was arranged in fixed block (41), the activity outer support piece passes through chute (410) and carousel (49) swing joint, the activity outer support piece include with shaft sliding connection's horizontal slide bar (43), horizontal slide bar (43) one end stretches into in the shaft, the other end stretches out outside the shaft, the activity outer support piece still including set up respectively inside and outside the shaft and with horizontal slide bar (43) end connection dial post (411) and outer bracing piece (44), dial post (411) insert in chute (410) and can follow chute (410) and move, fixed block (41) still include with outer wall intercommunication hold horizontal slide bar (43) gliding spout (42) and hold and dial post (42) 411) Slide (45) of removal, spout (42), slide (45) and rotary groove (46) communicate in proper order, fixed establishment (4) still include hydraulic motor (48) of being connected with carousel (49) transmission, cutting mechanism and hydraulic motor (48) hydraulic connection.
2. The internal hydraulic ring cutting device of the pile head of the prestressed pipe pile according to claim 1, characterized in that: the utility model discloses a cutting mechanism, including fixed block (41), movable outer support piece and carousel (49), fixed establishment (4) still including setting up in connecting block (47) of fixed block (41) bottom, hydraulic motor (48) set up in connecting block (47) top, cutting mechanism is including setting up in fixed disk (5) of connecting block (47) bottom and at a plurality of hydraulic pressure cutting pieces of fixed disk (5) side annular interval arrangement, hydraulic pressure cutting piece includes pneumatic cylinder (6) and broken head (7).
3. The internal hydraulic ring cutting device for the pile head of the prestressed pipe pile as claimed in claim 2, wherein: the crushing head (7) is of a conical structure.
4. The internal hydraulic ring cutting device of the pile head of the prestressed pipe pile according to claim 1, characterized in that: the telescopic positioning device (3) comprises a shell (31) and a placing plate (2) located at the bottom of the shell (31), the shell (31) comprises a servo motor (32), a square column (33) and a fixing plate (34) which are arranged in the horizontal direction, one end of the square column (33) is connected with the output end of the servo motor (32), the other end of the square column is rotatably connected with the fixing plate (34), the square column (33) is further sleeved with a sleeve (35) wound around a steel wire rope (37), a blocking disc (36) is arranged at the end of the sleeve (35), and the free end of the steel wire rope (37) penetrates through the placing plate (2) to be connected with the top of the fixing device (4).
5. The internal hydraulic ring cutting device for the pile head of the prestressed pipe pile as claimed in claim 4, wherein: still include in casing (31) near top position and square post (33) parallel arrangement's reciprocal lead screw (38) and the horizontal moving member of connecting reciprocal lead screw (38) and sleeve (35), horizontal moving member includes slider (39), connecting rod (315) and solid fixed ring (314) that match with reciprocal lead screw (38), gu fixed ring (314) and baffle (36) rotatable coupling of sleeve (35) one end, square post (33) other end has still cup jointed first synchronous pulley (312), reciprocal lead screw (38) cup jointed second synchronous pulley (313) of being connected through the hold-in range with first synchronous pulley (312).
6. The internal hydraulic ring cutting device for the pile head of the prestressed pipe pile as claimed in claim 5, wherein: the top in the shell (31) further comprises a sliding rail (310) arranged in parallel with the reciprocating screw rod (38), and the top of the sliding block (39) comprises a sliding rail block (311) matched with the sliding rail (310).
7. The internal hydraulic ring cutting device for the pile head of the prestressed pipe pile according to any one of claims 2 to 6, wherein: flexible positioner (3) bottom still includes fixture block (8) of shape of falling T, horizontal slide bar (43) top fixedly connected with stretches out fixture block (10) of the type of falling L at fixed block (41) top, fixture block (10) are removed along with horizontal slide bar (43) and are realized fixed with fixture block (8) block, fixed block (41) are still including recess (9) that hold fixture block (10) removal, recess (9) intercommunication fixed block (41) top and spout (42).
8. The internal hydraulic ring cutting device for the pile head of the prestressed pipe pile according to any one of claims 1-6, wherein: the top of the telescopic positioning device (3) comprises a lifting lug (11) convenient for tower crane connection.
9. The internal hydraulic ring cutting device for the pile head of the prestressed pipe pile according to any one of claims 1-6, wherein: the bottom of the telescopic positioning device (3) comprises a limiting ring (12) used for limiting the tubular pile (1).
10. A method for using the internal hydraulic ring-cutting device of the pile head of the prestressed pipe pile as claimed in any one of the preceding claims, which is characterized by comprising the following steps:
1) hoisting the telescopic positioning device (3) and the cutting device to the upper part of the tubular pile (1) through a tower crane, and aligning the central position of the tubular pile (1);
2) placing the bottom of the telescopic positioning device (3) on the top of the tubular pile (1), and lowering the cutting device through the telescopic positioning device (3) until the cutting mechanism moves to the circular cutting position;
3) a hydraulic motor (48) is started to control a rotary disc (49) to rotate, so that a shifting column (411) moves along a chute (410), and a horizontal sliding rod (43) and an outer support rod (44) are driven to move towards the inner wall of the tubular pile (1) to realize outer support fixation, so that the position stability of a cutting mechanism is ensured;
4) the inner wall of the tubular pile (1) is extruded and cut from inside to outside by opening a cutting mechanism, so that the tubular pile (1) is extruded and broken, and internal circular cutting is realized;
5) and starting the hydraulic motor (48) to withdraw the movable external support piece, lifting and withdrawing the cutting device through the telescopic positioning device (3), and fixing the cutting device and the bottom of the telescopic positioning device (3) to finish the recovery and storage of the device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110481493.5A CN113202099B (en) | 2021-04-30 | 2021-04-30 | Device and method for cutting hydraulic ring inside pile head of prestressed pipe pile |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110481493.5A CN113202099B (en) | 2021-04-30 | 2021-04-30 | Device and method for cutting hydraulic ring inside pile head of prestressed pipe pile |
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| CN113202099A true CN113202099A (en) | 2021-08-03 |
| CN113202099B CN113202099B (en) | 2023-10-24 |
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| CN211566513U (en) * | 2019-11-27 | 2020-09-25 | 天津市金鹏管桩制造有限公司 | Tubular pile cutting equipment |
| CN112296432A (en) * | 2020-10-19 | 2021-02-02 | 中交四航局江门航通船业有限公司 | Cutting equipment |
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- 2021-04-30 CN CN202110481493.5A patent/CN113202099B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5006687A (en) * | 1989-09-29 | 1991-04-09 | Kawasaki Steel Corporation | Method for cutting steel pipe piles |
| JP2000328570A (en) * | 1999-05-21 | 2000-11-28 | Nippon Sharyo Seizo Kaisha Ltd | Steel pipe cutting device |
| CN204471483U (en) * | 2015-02-11 | 2015-07-15 | 浙江晨龙锯床股份有限公司 | A kind of steel skeleton plastic clad pipe cutting clamper |
| CN106735522A (en) * | 2017-01-20 | 2017-05-31 | 冯克胜 | A kind of built-in tube cutting machine of well casing |
| CN109853644A (en) * | 2019-03-25 | 2019-06-07 | 武汉建诚工程技术有限公司 | A kind of detection device of ground foundation engineering construction sediment thickness |
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| CN113202099B (en) | 2023-10-24 |
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