CN117144961B - Large-diameter steel pipe column installation positioning device and positioning method thereof - Google Patents
Large-diameter steel pipe column installation positioning device and positioning method thereof Download PDFInfo
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- CN117144961B CN117144961B CN202311297039.XA CN202311297039A CN117144961B CN 117144961 B CN117144961 B CN 117144961B CN 202311297039 A CN202311297039 A CN 202311297039A CN 117144961 B CN117144961 B CN 117144961B
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 111
- 239000010959 steel Substances 0.000 title claims abstract description 111
- 238000009434 installation Methods 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 14
- 230000000712 assembly Effects 0.000 claims abstract description 8
- 238000000429 assembly Methods 0.000 claims abstract description 8
- 239000002689 soil Substances 0.000 claims description 30
- 230000002093 peripheral effect Effects 0.000 claims description 11
- 238000012856 packing Methods 0.000 claims description 9
- 238000007599 discharging Methods 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 description 4
- 238000005553 drilling Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005056 compaction Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/10—Deep foundations
- E02D27/12—Pile foundations
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D13/00—Accessories for placing or removing piles or bulkheads, e.g. noise attenuating chambers
- E02D13/04—Guide devices; Guide frames
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/24—Prefabricated piles
- E02D5/28—Prefabricated piles made of steel or other metals
- E02D5/285—Prefabricated piles made of steel or other metals tubular, e.g. prefabricated from sheet pile elements
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Earth Drilling (AREA)
Abstract
The invention relates to the technical field of building pile foundations, in particular to a large-diameter steel pipe column installation positioning device and a positioning method thereof. A large-diameter steel pipe column installation positioning device comprises a bottom expanding mechanism, a closing-in mechanism, a first driving mechanism and a second driving mechanism. The bottom expanding mechanism comprises a drill bit, a supporting tube, a fixed block, a thick spring and a plurality of rotary hole assemblies. The stay tube sets up in the steel-pipe column, and the both ends of stay tube are first end and second end, and the drill bit sets up in the first end of stay tube slidingly. The fixed block is sleeved on the supporting tube, the thick spring is sleeved on the supporting tube, a plurality of rotating hole assemblies are uniformly distributed along the circumferential direction of the supporting tube, and each rotating hole assembly comprises a drill rod and a hinging rod. The invention provides a large-diameter steel pipe column installation positioning device and a positioning method thereof, which are used for solving the problems that the whole working process is discontinuous, the steel pipe column is likely to deviate and the pipe wall of the steel pipe column is damaged in the existing steel pipe column installation mode.
Description
Technical Field
The invention relates to the technical field of building pile foundations, in particular to a large-diameter steel pipe column installation positioning device and a positioning method thereof.
Background
The steel pipe column is an industrial product, is a column manufactured by steel, and is used for large and medium-sized industrial plants, large-span public buildings, high-rise houses and the like. The major diameter steel-pipe column often is arranged in the support of foundation ditch in the building engineering, and current mounting means is offered at the mounted position department that sets for and is predetermine the hole, hangs the steel-pipe column through mechanical equipment such as crane, makes the steel-pipe column vertical, then hangs the steel-pipe column to predetermine the hole top, and the manual work is aimed at and is right, installs after detecting the straightness to accomplish the construction of building, but only rely on manual installation, the steel-pipe column can appear the circumstances of skew, and the mounted position error is big.
The chinese patent application with publication number CN115012420a provides a large-diameter steel pipe column installation positioning device and a positioning method thereof, which are used for inserting a steel pipe column into a preset hole on the ground, and by setting a positioning mechanism, the steel pipe column always moves on the central axis of the preset hole, so that the steel pipe is not easy to damage other underground pipelines. But the whole working process is discontinuous, the preset hole is required to be formed firstly, then the steel pipe column is installed, the pipe wall of the steel pipe column can be extruded when the righting force of soil to the steel pipe column is overlarge during installation, damage is caused to the steel pipe column, and the steel pipe column can deviate when the righting force is overlarge, so that the installation effect is poor.
Disclosure of Invention
The invention provides a large-diameter steel pipe column installation positioning device and a positioning method thereof, which are used for solving the problems that the whole working process is discontinuous, the steel pipe column is likely to deviate and the pipe wall of the steel pipe column is damaged in the existing steel pipe column installation mode.
The invention relates to a large-diameter steel pipe column installation positioning device and a positioning method thereof, which adopt the following technical scheme: a large-diameter steel pipe column installation positioning device comprises a bottom expanding mechanism, a closing-in mechanism, a first driving mechanism and a second driving mechanism.
The bottom expanding mechanism comprises a drill bit, a supporting tube, a fixed block, a thick spring and a plurality of rotary hole assemblies. The stay tube sets up in the steel-pipe column, and the stay tube extends along the axial of steel-pipe column, and the both ends of stay tube are first end and second end, and the drill bit slidingly sets up in the first end of stay tube.
The fixed block is sleeved on the support tube and can move along the axis of the support tube. The thick spring is sleeved on the supporting tube, one end of the thick spring is fixedly connected to the fixed block, and the other end of the thick spring is fixedly connected to the drill bit. The plurality of hole rotating assemblies are uniformly distributed along the circumference of the supporting tube, and each hole rotating assembly comprises a drill rod and a hinging rod. One end of the drill rod is rotationally connected to the fixed block, one end of the hinge rod is rotationally connected to the other end of the drill rod, and the other end of the hinge rod is rotationally connected to the drill bit.
The closing-in mechanism comprises a closing-in ring which is rotationally arranged at one end of the steel pipe column close to the first end of the supporting pipe. The first driving mechanism is used for driving the supporting tube to rotate around the axis of the first driving mechanism, and the second driving mechanism is used for driving the supporting tube and the steel tube column to synchronously move.
Further, along the axis direction of the support tube, a connecting disc is fixedly arranged on one side, far away from the drill rod, of the fixing block, the connecting disc is positioned in the steel pipe column, and the connecting disc is positioned at one end, close to the first end of the support tube, of the steel pipe column. The bottom expanding mechanism further comprises a driving assembly, wherein the driving assembly comprises a plurality of first hydraulic cylinders, and the first hydraulic cylinders are fixedly arranged on the peripheral wall of the supporting tube. The first hydraulic cylinders are uniformly distributed along the circumferential direction of the support tube, extend along the axial direction of the support tube, and are fixedly connected with the connecting disc at the extension ends.
Further, a plurality of clamping blocks are fixedly arranged on one side, close to the drill rod, of the connecting disc, the clamping blocks are uniformly distributed along the circumferential direction of the connecting disc, and each clamping block extends along the axial direction of the supporting tube. The binding off ring cover is located the stay tube, and binding off ring and stay tube set up with one heart, and binding off ring extends along the axis of stay tube. One side of the closing-in ring and one end of the steel pipe column, which is close to the first end of the support pipe, are propped against each other, a connecting ring is fixedly arranged on the other side of the closing-in ring, the closing-in ring and the connecting ring are concentrically arranged, the radius of the closing-in ring is larger than that of the connecting ring, a plurality of clamping grooves are formed in one side of the connecting ring, which is close to the connecting disc, the clamping grooves are uniformly distributed along the circumferential direction of the connecting disc, each clamping groove extends along the axial direction of the support pipe, and the clamping grooves penetrate through the connecting ring. Each clamping block is positioned in one clamping groove. One side of the connecting ring far away from the connecting disc is provided with a rounding angle extending along the circumferential direction of the connecting ring.
Further, the bottom expanding mechanism further comprises a conveying assembly, the conveying assembly comprises a packing auger, the packing auger is rotatably arranged in the supporting tube, the packing auger comprises a spiral shaft and a spiral blade, the spiral shaft extends along the axial direction of the supporting tube, and the spiral blade is fixedly connected with the spiral shaft. The peripheral wall of one end of the spiral shaft, which is close to the second end of the supporting tube, is provided with a ring groove. The inside of stay tube second end is fixed to be provided with swivel and a plurality of connecting rods. The swivel is rotationally sleeved on the annular groove, a plurality of connecting rods are distributed along the circumferential direction of the swivel, each connecting rod extends along the radial direction of the swivel, one end of each connecting rod is fixedly connected to the swivel, and the other end of each connecting rod is fixedly connected to the inner wall of the supporting tube.
Further, a discharge hole is formed in the peripheral wall of the second end of the support tube, and a pipeline for discharging soil to the outside of the support tube is arranged at the discharge hole.
Further, the large-diameter steel pipe column installation positioning device further comprises a connecting plate which moves synchronously along with the supporting pipe, and the supporting pipe can rotate relative to the connecting plate. The first driving mechanism comprises a planetary gear set and a motor, and the motor is fixedly arranged on the connecting plate. The planetary gear set comprises a central wheel, a gear ring and a plurality of planetary gears. The gear ring is fixedly arranged at the second end of the support tube, the central wheel is fixedly arranged at one end of the spiral shaft, which is close to the second end of the support tube, and the central wheel and the gear ring are both concentrically arranged with the support tube. The planet wheel can rotate around the axis of the planet wheel and is arranged on the connecting plate, and the center wheel and the gear ring are engaged with the planet wheel. The output shaft of the motor is fixedly connected to the center wheel.
Further, the second driving mechanism comprises a first fixed disc, a second fixed disc and a plurality of second hydraulic cylinders. The second hydraulic cylinders are uniformly distributed along the circumferential direction of the support tube, the second hydraulic cylinders extend along the axial direction of the support tube, one end of each second hydraulic cylinder is fixedly connected with the first fixed disc, and the other end of each second hydraulic cylinder is fixedly connected with the second fixed disc. The second fixed disk is fixedly connected to the support pipe, and the second fixed disk abuts against one end, close to the second end of the support pipe, of the steel pipe column.
Further, the drill bit is close to the fixed connecting pipe that is provided with of the one end of stay tube first end, and the first end of stay tube sets up in the connecting pipe slidingly, fixedly on the inner peripheral wall of the one end of stay tube keeping away from the drill bit, fixedly on the outer peripheral wall of the first end of stay tube be provided with the second keep off the ring, the second keep off the ring and be used for with first keep off the ring and offset.
Further, a plurality of cutters are fixedly arranged on one side, close to soil, of the drill bit, and the cutters are uniformly distributed along the circumferential direction of the supporting tube.
A large-diameter steel pipe column installation and positioning method comprises the following steps:
s1, vertically arranging the steel pipe column, enabling the bottom expanding mechanism to penetrate through the steel pipe column and installing the closing ring on the steel pipe column.
S2, driving the supporting tube to rotate along the axis of the supporting tube through the first driving mechanism, and further driving the drill bit and the hole rotating assembly to rotate, and starting to rotate the hole to the ground through the drill bit and the hole rotating assembly.
S3, driving the support tube and the steel tube column to synchronously move into the hole through the second driving mechanism.
The beneficial effects of the invention are as follows: according to the large-diameter steel pipe column installation positioning device, the installation work is completed while the bottom expanding mechanism is drilled, secondary construction is not needed, and the working efficiency is greatly improved. Through setting up pivoted binding off ring, the binding off ring is radially removed and compaction with earth, and earth is hugged closely on the outer wall of steel-pipe column, plays the effect of righting to make the steel-pipe column installation firm.
The deeper the drilling depth is, the smaller the required righting force of the steel pipe column is, so as the depth of the hole is deeper, the more the fixed block moves towards the drill bit, the more the coarse spring is compressed, the diameter of the hole drilled by the drill rod is continuously increased, the compacted soil gives the steel pipe column proper righting force, the outer wall of the steel pipe column is prevented from being extruded by the overlarge righting force, the steel pipe column is damaged, and the possible installation position is possibly error and offset due to the overlarge righting force.
And because the drilling width is determined by the pressure applied by the drill bit and the elasticity of the coarse spring. The soil with high hardness can provide the steel pipe column with high righting force, and the soil with low hardness can provide the steel pipe column with low righting force. Therefore, when the soil hardness is large, the pressure born by the drill bit is large, so that the coarse spring is compressed more, the diameter of the hole drilled by the drill rod is larger, the large righting force provided by soil to the steel pipe column is reduced, and the damage of the soil to the steel pipe column is prevented. When the hardness of the soil is smaller, the pressure applied to the drill bit is smaller, so that the coarse spring is compressed less, and the diameter of a hole drilled by the drill rod is smaller, so that the soil gives enough righting force to the steel pipe column.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the invention, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.
Fig. 1 is a schematic structural view of a large-diameter steel pipe column installation positioning device according to a first embodiment of the present invention;
fig. 2 is a front view of a large-diameter steel pipe column installation positioning device according to a first embodiment of the present invention;
FIG. 3 is a cross-sectional view at A-A in FIG. 2;
FIG. 4 is an enlarged view at B in FIG. 3;
Fig. 5 is a schematic structural view of a closing mechanism of a large-diameter steel pipe column installation positioning device according to a first embodiment of the present invention;
FIG. 6 is a schematic structural view of a bottom expanding mechanism of a large diameter steel pipe column installation positioning device according to a first embodiment of the present invention;
Fig. 7 is a cross-sectional view at C-C in fig. 6.
In the figure: 100. a steel pipe column; 200. a closing ring; 201. a connecting ring; 300. a motor; 400. a second hydraulic cylinder; 401. a first fixed plate; 402. a second fixed disk; 500. a center wheel; 501. a gear ring; 502. a planet wheel; 600. a drill bit; 601. a drill rod; 602. a hinge rod; 603. a thick spring; 604. a first hydraulic cylinder; 605. an auger; 606. a second baffle ring; 700. a support tube; 701. a first baffle ring; 800. a fixed block; 801. and (5) clamping blocks.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1 to 7, a large-diameter steel pipe column installation positioning device provided by an embodiment of the invention includes a bottom expanding mechanism, a closing mechanism, a first driving mechanism and a second driving mechanism.
The bottom expanding mechanism includes a drill bit 600, a support tube 700, a fixed block 800, a coarse spring 603, and a plurality of rotary hole assemblies. The support pipe 700 is disposed in the steel pipe column 100, the support pipe 700 extends along the axial direction of the steel pipe column 100, the two ends of the support pipe 700 are a first end and a second end, the drill bit 600 is disposed at the first end of the support pipe 700, and the drill bit 600 can move along the axis of the support pipe 700. The fixing block 800 is sleeved on the support tube 700, and the fixing block 800 can move along the axis of the support tube 700. The thick spring 603 is sleeved on the supporting tube 700, one end of the thick spring 603 is fixedly connected to the fixing block 800, and the other end of the thick spring 603 is fixedly connected to the drill bit 600.
A plurality of rotation hole assemblies are uniformly distributed along the circumferential direction of the support pipe 700, and each rotation hole assembly includes a drill rod 601 and a hinge rod 602. One end of the drill rod 601 is rotatably connected to the fixed block 800, one end of the hinge rod 602 is rotatably connected to the other end of the drill rod 601, and the other end of the hinge rod 602 is rotatably connected to the drill bit 600. The drill pipe 601 is disposed obliquely, and one end of the drill pipe 601 away from the fixed block 800 is gradually away from the axial center of the support pipe 700 along the direction of the axial line of the support pipe 700.
The closing-in mechanism comprises a closing-in ring 200, and the closing-in ring 200 is rotatably arranged at one end of the steel pipe column 100 near the first end of the supporting pipe 700. The first driving mechanism is used for driving the supporting tube 700 to rotate around the axis of the first driving mechanism, and the second driving mechanism is used for driving the supporting tube 700 and the steel pipe column 100 to synchronously move.
In this embodiment, a connection disc is fixedly provided on a side of the fixing block 800 away from the drill pipe 601 along the axial direction of the support pipe 700, the connection disc is located in the steel pipe column 100, and the connection disc is located at an end of the steel pipe column 100 near the first end of the support pipe 700. The bottom expanding mechanism further comprises a driving assembly, wherein the driving assembly comprises a plurality of first hydraulic cylinders 604, and the first hydraulic cylinders 604 are fixedly arranged on the peripheral wall of the supporting tube 700. The first hydraulic cylinders 604 are uniformly distributed along the circumferential direction of the support pipe 700, the first hydraulic cylinders 604 extend along the axial direction of the support pipe 700, and the extension ends of the first hydraulic cylinders 604 are fixedly connected to the connecting discs.
The extension of the extension end of the first hydraulic cylinder 604 drives the fixed block 800 to move towards the direction approaching the drill bit 600, so that the width of the hole drilled by the drill rod 601 can be increased, and the width of the hole does not exceed the outer diameter of the steel pipe column 100 at maximum.
In this embodiment, a plurality of clamping blocks 801 are fixedly arranged on one side of the connecting disc, which is close to the drill rod 601, the plurality of clamping blocks 801 are uniformly distributed along the circumferential direction of the connecting disc, and each clamping block 801 extends along the axial direction of the supporting tube 700.
The necking ring 200 is sleeved on the supporting tube 700, the necking ring 200 and the supporting tube 700 are concentrically arranged, and the necking ring 200 extends along the axis of the supporting tube 700. One side of the closing-in ring 200 is propped against one end, close to the first end of the support tube 700, of the steel pipe column 100, a connecting ring 201 is fixedly arranged on the other side of the closing-in ring 200, the closing-in ring 200 and the connecting ring 201 are concentrically arranged, the radius of the closing-in ring 200 is larger than that of the connecting ring 201, a plurality of clamping grooves are formed in one side, close to the connecting disc, of the connecting ring 201, the clamping grooves are uniformly distributed along the circumferential direction of the connecting disc, each clamping groove extends along the axial direction of the support tube 700, and the clamping grooves penetrate through the connecting ring 201. Each of the latches 801 is positioned in one of the latches. The connecting ring 201 is provided with a rounded corner extending along the circumferential direction of the connecting ring 201 on the side thereof away from the connecting disc.
Because the width of hole is slightly less than the external diameter of steel-pipe column 100, so have a part earth to hinder steel-pipe column 100 to descend, go-between 201 and connection pad synchronous rotation, the chamfer on go-between 201 removes this part earth along the radial direction of steel-pipe column 100 towards the direction of keeping away from steel-pipe column 100 axis to by the compaction, make earth hug closely on the outer wall of steel-pipe column 100, play the righting effect.
In this embodiment, the bottom expanding mechanism further includes a transporting assembly, the transporting assembly includes a packing auger 605, the packing auger 605 is rotatably disposed in the support pipe 700, the packing auger 605 includes a screw shaft and a screw blade, the screw shaft extends along an axial direction of the support pipe 700, and the screw blade is fixedly connected with the screw shaft. A circumferential wall of one end of the screw shaft near the second end of the support tube 700 is provided with a ring groove.
A swivel and a plurality of connection rods are fixedly provided inside the second end of the support tube 700. The swivel is rotationally sleeved on the annular groove, a plurality of connecting rods are distributed along the circumferential direction of the swivel, each connecting rod extends along the radial direction of the swivel, one end of each connecting rod is fixedly connected to the swivel, and the other end of each connecting rod is fixedly connected to the inner wall of the supporting tube 700. Auger 605 can move up and down in synchronization with support tube 700, and auger 605 can rotate relative to support tube 700.
In this embodiment, a discharge port is formed in the peripheral wall of the second end of the support pipe 700, and a pipe for discharging soil to the outside of the support pipe 700 is provided at the discharge port. The auger 605 rotates to convey soil from the first end of the support tube 700 to the second end of the support tube 700, and the soil eventually enters the pipe from the discharge port and is discharged to the outside through the pipe.
In this embodiment, the large-diameter steel pipe column installation positioning device further includes a connection plate that moves in synchronization with the support pipe 700, the connection plate and the support pipe 700 move in synchronization along the axis of the steel pipe column 100, and the support pipe 700 can rotate relative to the connection plate, that is, when the support pipe 700 rotates, the connection plate does not rotate. The connecting plate is arranged on the crane through a plurality of telescopic rods. The first driving mechanism comprises a planetary gear set and a motor 300, and the motor 300 is fixedly arranged on the connecting plate. The planetary gear set comprises a centre wheel 500, a ring gear 501 and a plurality of planet wheels 502. The gear ring 501 is fixedly arranged at the second end of the support tube 700, the central wheel 500 is fixedly arranged at one end of the spiral shaft close to the second end of the support tube 700, and the central wheel 500 and the gear ring 501 are both concentrically arranged with the support tube 700. The planetary gear 502 is rotatably disposed on the connection plate around its own axis, and the center wheel 500 and the ring gear 501 are engaged with the planetary gear 502. The output shaft of the motor 300 is fixedly connected to the center wheel 500.
The motor 300 drives the center wheel 500 to rotate, and the center wheel 500 drives the auger 605 to rotate. The central wheel 500 drives the gear ring 501 to rotate through the planet wheel 502 so as to drive the supporting tube 700 to rotate, and the planet wheel set is in a decelerating motion, so that the rotating speed of the auger 605 is greater than that of the drill bit 600. The support tube 700 drives the fixing block 800 to rotate, and the fixing block 800 drives the drill bit 600 to synchronously rotate through the rotary hole assembly. The drill bit 600 and the rotary steerable assembly begin to drill holes in the surface. Because the diameter of the hole drilled by the drill pipe 601 is larger than the diameter of the supporting pipe 700, the rotating speed of the auger 605 is larger than that of the drill bit 600, and the auger 605 can transport soil out of the hole as soon as possible.
In the present embodiment, the second driving mechanism includes a first fixed disk 401, a second fixed disk 402, and a plurality of second hydraulic cylinders 400. The second hydraulic cylinders 400 are uniformly distributed along the circumferential direction of the support pipe 700, the second hydraulic cylinders 400 extend along the axial direction of the support pipe 700, one end of each second hydraulic cylinder 400 is fixedly connected to the first fixing plate 401, and the other end of each second hydraulic cylinder 400 is fixedly connected to the second fixing plate 402. The second fixing plate 402 is fixedly connected to the support pipe 700, and the second fixing plate 402 abuts against one end, close to the second end of the support pipe 700, of the steel pipe column 100.
The crane vertically lifts the steel pipe column 100 through the lifting rope, the first fixed disk 401 is rotatably arranged on the crane, the second fixed disk 402 is propped against one end, close to the second end of the supporting pipe 700, of the steel pipe column 100, the extension end of the second hydraulic cylinder 400 extends to drive the supporting pipe 700 to move downwards, and the steel pipe column 100 is pressed by the second fixed disk 402 to synchronously move downwards.
In this embodiment, a connecting pipe is fixedly disposed at one end of the drill bit 600 near the first end of the support pipe 700, the first end of the support pipe 700 is slidably disposed in the connecting pipe, a first blocking ring 701 is fixedly disposed on an inner peripheral wall of one end of the connecting pipe far away from the drill bit 600, and a second blocking ring 606 is fixedly disposed on an outer peripheral wall of the first end of the support pipe 700, and the second blocking ring 606 is used for abutting against the first blocking ring 701 so as to prevent the drill bit 600 and the support pipe 700 from being separated.
In this embodiment, a plurality of cutters are fixedly disposed on one side of the drill bit 600 near the soil, and the plurality of cutters are uniformly distributed along the circumferential direction of the support tube 700. The drill bit 600 rotates to drive the cutter to rotate so as to punch the ground.
A large-diameter steel pipe column installation and positioning method comprises the following steps:
step S1, a crane vertically lifts the steel pipe column 100 through a lifting rope, then the bottom expanding mechanism penetrates through the steel pipe column 100, the closing mechanism is abutted to one end, close to the first end of the supporting pipe 700, of the steel pipe column 100, and clamping grooves on clamping blocks 801 and 201 on the connecting disc are matched one by one.
In step S2, a mark is left on the ground, the drill bit 600 is aligned with the mark, the motor 300 is started, the motor 300 drives the center wheel 500 to rotate, and the center wheel 500 drives the auger 605 to rotate. The central wheel 500 drives the gear ring 501 to rotate through the planet wheel 502 so as to drive the supporting tube 700 to rotate, and the planet wheel set is in a decelerating motion, so that the rotating speed of the auger 605 is greater than that of the drill bit 600. The support tube 700 drives the fixing block 800 to rotate, and the fixing block 800 drives the drill bit 600 to synchronously rotate through the rotary hole assembly. The drill bit 600 and rotary hole assembly begins to drill holes in the ground and rotation of the auger 605 conveys soil in the holes from a first end of the support tube 700 to a second end of the support tube 700, where it is eventually expelled from the pipe.
In step S3, the second hydraulic cylinder 400 is started, the extension end of the second hydraulic cylinder 400 extends to drive the support pipe 700 to move downwards, and the second fixing disc 402 is used for pressing the steel pipe column 100 to move downwards synchronously. Simultaneously, the first hydraulic cylinder 604 is started, the extension end of the first hydraulic cylinder 604 is gradually extended, and the extension length of the extension end of the first hydraulic cylinder 604 is proportional to the depth of the hole. The first hydraulic cylinder 604 drives the fixed block 800 to move toward the first end of the support tube 700, the coarse spring 603 is compressed, the diameter of the hole drilled by the drill rod 601 is continuously increased, and the diameter of the hole does not exceed the outer diameter of the steel pipe column 100 at the maximum.
Because the diameter of the hole is slightly smaller than the outer diameter of the steel pipe column 100, a part of soil blocks the steel pipe column 100 from being lowered, the part of soil encounters the closing ring 200, the closing ring 200 synchronously rotates along with the fixed block 800, and the round corners on the connecting ring move the part of soil along the radial direction of the steel pipe column 100 in the direction away from the axis of the steel pipe column 100 and are compacted. Soil is tightly attached to the outer wall of the steel pipe column 100, so that the steel pipe column 100 is stably installed.
Since the larger the diameter of the hole is, the deeper the drilling depth is, the smaller the righting force required for the steel pipe column 100 is, the compacted soil gives the steel pipe column 100 proper righting force, the outer wall of the steel pipe column 100 is prevented from being extruded by the overlarge righting force, the steel pipe column 100 is damaged, and the possible installation position is possibly error and offset due to the overlarge righting force.
And because the width of the drilled hole is determined by both the pressure applied to the drill bit 600 and the elastic force of the coarse spring 603. The soil with high hardness can provide the steel pipe column 100 with a large righting force, and the soil with low hardness can provide the steel pipe column 100 with a small righting force. Therefore, when the hardness of the soil is high, the pressure applied to the drill bit 600 is high, so that the coarse spring 603 is compressed more, the diameter of the hole drilled by the drill rod 601 is increased, the large righting force provided by the soil to the steel pipe column 100 is reduced, and the damage of the soil to the steel pipe column 100 is prevented. When the hardness of the soil is small, the drill bit 600 is subjected to a small pressure, so that the coarse spring 603 is compressed less, and the diameter of the hole drilled by the drill pipe 601 is smaller, so that the soil gives the steel pipe column 100 a sufficient righting force.
After drilling to the target depth, the second drive mechanism is removed from above the steel pipe column 100 and the extended end of the first hydraulic cylinder 604 is shortened by a portion, the thick spring 603 is extended by a portion, and then the bottom expanding mechanism is pulled away from the upper end of the steel pipe column 100, leaving the collar 200 in the hole.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (7)
1. The utility model provides a major diameter steel-pipe column installs positioner which characterized in that:
Comprises a bottom expanding mechanism, a closing mechanism, a first driving mechanism and a second driving mechanism; the bottom expanding mechanism comprises a drill bit, a supporting tube, a fixed block, a thick spring and a plurality of rotary hole assemblies; the support tube is arranged in the steel pipe column, extends along the axial direction of the steel pipe column, and has a first end and a second end at two ends, and the drill bit is slidingly arranged at the first end of the support tube;
The fixed block is sleeved on the support tube and can move along the axis of the support tube; the thick spring is sleeved on the supporting tube, one end of the thick spring is fixedly connected to the fixed block, and the other end of the thick spring is fixedly connected to the drill bit; a plurality of rotary hole assemblies are uniformly distributed along the circumferential direction of the support tube, and each rotary hole assembly comprises a drill rod and a hinging rod; one end of the drill rod is rotationally connected with the fixed block, one end of the hinge rod is rotationally connected with the other end of the drill rod, and the other end of the hinge rod is rotationally connected with the drill bit;
The closing-in mechanism comprises a closing-in ring which is rotationally arranged at one end of the steel pipe column close to the first end of the supporting pipe; the first driving mechanism is used for driving the supporting tube to rotate around the axis of the first driving mechanism, and the second driving mechanism is used for driving the supporting tube and the steel pipe column to synchronously move;
A discharge hole is formed in the peripheral wall of the second end of the support tube, and a pipeline for discharging soil to the outside of the support tube is arranged at the discharge hole;
The large-diameter steel pipe column installation positioning device further comprises a connecting plate which moves synchronously along with the supporting pipe, and the supporting pipe can rotate relative to the connecting plate; the first driving mechanism comprises a planetary gear set and a motor, and the motor is fixedly arranged on the connecting plate; the planetary gear set comprises a central wheel, a gear ring and a plurality of planetary gears; the gear ring is fixedly arranged at the second end of the support tube, the central wheel is fixedly arranged at one end of the spiral shaft, which is close to the second end of the support tube, and the central wheel and the gear ring are both concentrically arranged with the support tube; the planetary gear can be rotatably arranged on the connecting plate around the axis of the planetary gear, and the central gear and the gear ring are engaged with the planetary gear; an output shaft of the motor is fixedly connected to the center wheel;
the second driving mechanism comprises a first fixed disc, a second fixed disc and a plurality of second hydraulic cylinders; the second hydraulic cylinders are uniformly distributed along the circumferential direction of the support tube, extend along the axial direction of the support tube, and are fixedly connected with the first fixed disc at one end and the second fixed disc at the other end; the second fixed disk is fixedly connected to the support pipe, and the second fixed disk abuts against one end, close to the second end of the support pipe, of the steel pipe column.
2. The large-diameter steel pipe column installation positioning device according to claim 1, wherein:
A connecting disc is fixedly arranged on one side, far away from the drill rod, of the fixing block along the axial direction of the support tube, the connecting disc is positioned in the steel pipe column, and the connecting disc is positioned at one end, close to the first end of the support tube, of the steel pipe column; the bottom expanding mechanism further comprises a driving assembly, wherein the driving assembly comprises a plurality of first hydraulic cylinders, and the first hydraulic cylinders are fixedly arranged on the peripheral wall of the supporting tube; the first hydraulic cylinders are uniformly distributed along the circumferential direction of the support tube, extend along the axial direction of the support tube, and are fixedly connected with the connecting disc at the extension ends.
3. The large-diameter steel pipe column installation positioning device according to claim 2, wherein:
A plurality of clamping blocks are fixedly arranged on one side of the connecting disc, which is close to the drill rod, and are uniformly distributed along the circumferential direction of the connecting disc, and each clamping block extends along the axial direction of the supporting tube; the closing ring is sleeved on the supporting tube, the closing ring and the supporting tube are concentrically arranged, and the closing ring extends along the axis of the supporting tube; one side of the closing-in ring is propped against one end of the steel pipe column, which is close to the first end of the supporting pipe, the other side of the closing-in ring is fixedly provided with a connecting ring, the closing-in ring and the connecting ring are concentrically arranged, the radius of the closing-in ring is larger than that of the connecting ring, one side of the connecting ring, which is close to the connecting disc, is provided with a plurality of clamping grooves, the clamping grooves are uniformly distributed along the circumferential direction of the connecting disc, each clamping groove extends along the axial direction of the supporting pipe, and the clamping grooves penetrate through the connecting ring; each clamping block is positioned in one clamping groove; one side of the connecting ring far away from the connecting disc is provided with a rounding angle extending along the circumferential direction of the connecting ring.
4. The large-diameter steel pipe column installation positioning device according to claim 1, wherein:
the bottom expanding mechanism further comprises a conveying assembly, the conveying assembly comprises a packing auger, the packing auger is rotatably arranged in the supporting tube, the packing auger comprises a spiral shaft and a spiral blade, the spiral shaft extends along the axial direction of the supporting tube, and the spiral blade is fixedly connected with the spiral shaft; a circumferential wall of one end of the spiral shaft, which is close to the second end of the supporting tube, is provided with a ring groove; a swivel and a plurality of connecting rods are fixedly arranged in the second end of the supporting tube; the swivel is rotationally sleeved on the annular groove, a plurality of connecting rods are distributed along the circumferential direction of the swivel, each connecting rod extends along the radial direction of the swivel, one end of each connecting rod is fixedly connected to the swivel, and the other end of each connecting rod is fixedly connected to the inner wall of the supporting tube.
5. The large-diameter steel pipe column installation positioning device according to claim 1, wherein:
The drill bit is close to the fixed connecting pipe that is provided with of the first end of stay tube, and the first end of stay tube slides and sets up in the connecting pipe, fixedly on the interior perisporium of the one end of stay tube keeping away from the drill bit be provided with first baffle ring, fixedly on the periphery wall of the first end of stay tube be provided with the second baffle ring, the second baffle ring is used for with first baffle ring offset.
6. The large-diameter steel pipe column installation positioning device according to claim 1, wherein:
the drill bit is close to one side of earth and fixedly provided with a plurality of cutters, and a plurality of cutters are along the circumference equipartition of stay tube.
7. A method for installing and positioning a large-diameter steel pipe column by using the large-diameter steel pipe column installing and positioning device according to any one of claims 1 to 6, comprising the steps of:
s1, vertically arranging a steel pipe column, enabling a bottom expanding mechanism to penetrate through the steel pipe column and installing a closing ring on the steel pipe column;
S2, driving the supporting tube to rotate along the axis of the supporting tube through the first driving mechanism, and further driving the drill bit and the hole rotating assembly to rotate, wherein the drill bit and the hole rotating assembly start to rotate towards the ground;
s3, driving the support tube and the steel tube column to synchronously move into the hole through the second driving mechanism.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311297039.XA CN117144961B (en) | 2023-10-08 | 2023-10-08 | Large-diameter steel pipe column installation positioning device and positioning method thereof |
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| CN202311297039.XA CN117144961B (en) | 2023-10-08 | 2023-10-08 | Large-diameter steel pipe column installation positioning device and positioning method thereof |
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| CN117144961B true CN117144961B (en) | 2024-04-16 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0531575A (en) * | 1991-07-26 | 1993-02-09 | Kawasaki Steel Corp | Method and device for fixing diaphragm in square steel pipe column |
| CN214247219U (en) * | 2021-02-07 | 2021-09-21 | 甘肃中铁建设工程有限公司 | Anchor rod pore-forming grouting construction equipment with hole expanding mechanism |
| CN216341894U (en) * | 2021-11-30 | 2022-04-19 | 北京智仁通和岩土科技有限公司 | Stone drilling and digging crushing device for earthwork |
| CN216406706U (en) * | 2021-11-02 | 2022-04-29 | 中国有色金属工业西安勘察设计研究院有限公司 | Pile foundation bottom expanding construction device |
| CN115012420A (en) * | 2022-06-02 | 2022-09-06 | 江苏佰拓建设有限公司 | Large-diameter steel pipe column installation positioning device and positioning method thereof |
| CN116591597A (en) * | 2023-07-18 | 2023-08-15 | 陕西建一建设有限公司 | Rotary drilling rig for highway bridge construction |
-
2023
- 2023-10-08 CN CN202311297039.XA patent/CN117144961B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0531575A (en) * | 1991-07-26 | 1993-02-09 | Kawasaki Steel Corp | Method and device for fixing diaphragm in square steel pipe column |
| CN214247219U (en) * | 2021-02-07 | 2021-09-21 | 甘肃中铁建设工程有限公司 | Anchor rod pore-forming grouting construction equipment with hole expanding mechanism |
| CN216406706U (en) * | 2021-11-02 | 2022-04-29 | 中国有色金属工业西安勘察设计研究院有限公司 | Pile foundation bottom expanding construction device |
| CN216341894U (en) * | 2021-11-30 | 2022-04-19 | 北京智仁通和岩土科技有限公司 | Stone drilling and digging crushing device for earthwork |
| CN115012420A (en) * | 2022-06-02 | 2022-09-06 | 江苏佰拓建设有限公司 | Large-diameter steel pipe column installation positioning device and positioning method thereof |
| CN116591597A (en) * | 2023-07-18 | 2023-08-15 | 陕西建一建设有限公司 | Rotary drilling rig for highway bridge construction |
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| Publication number | Publication date |
|---|---|
| CN117144961A (en) | 2023-12-01 |
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