CN111576398A

CN111576398A - Construction device for cast-in-place pile

Info

Publication number: CN111576398A
Application number: CN202010514071.9A
Authority: CN
Inventors: 黄健; 应建伟; 陈巧慧
Original assignee: Zhejiang Wanli Construction Engineering Co ltd
Current assignee: Zhejiang Wanli Construction Engineering Co ltd
Priority date: 2020-06-08
Filing date: 2020-06-08
Publication date: 2020-08-25

Abstract

The invention relates to a construction device of a cast-in-place pile, which comprises a drilling machine, wherein an output shaft capable of lifting in the vertical direction is arranged on the drilling machine, the output shaft is rotatably connected to the drilling machine, an obstacle clearing barrel is arranged at the end part of the output shaft, one end of the obstacle clearing barrel is detachably arranged on the output shaft, the other end of the obstacle clearing barrel is arranged in an open manner, a plurality of cutting parts are arranged on the open end surface of the obstacle clearing barrel, a shielding part is arranged on the inner side wall of the obstacle clearing barrel, the shielding part is close to the cutting parts, and the shielding part and the inner side wall of the obstacle clearing barrel are matched with each other to divide a. When a rig drive obstacles removing section of thick bamboo rotates, the cutting part can be cut the downthehole stone of stake, and the rotation of an obstacles removing section of thick bamboo all can produce the extrusion force to the stone under the cutting with descending, and the reaction force of stone backs down the shielding piece, makes the stone enter into the inside of an obstacles removing section of thick bamboo through the passageway, and an obstacles removing section of thick bamboo can also take out the stake hole with the stone of cutting after the cutting is accomplished.

Description

Construction device for cast-in-place pile

Technical Field

The invention relates to the technical field of building construction, in particular to a construction device of a cast-in-place pile.

Background

The cast-in-place pile system is a pile formed by forming a pile hole in foundation soil through mechanical drilling, steel pipe soil extrusion or manual excavation and the like on an engineering site, placing a reinforcement cage and cast-in-place concrete in the pile hole, and the cast-in-place pile can be divided into a immersed tube cast-in-place pile, a cast-in-place pile and a cast-in-place pile according to different hole forming methods.

The cast-in-situ bored pile is widely applied to foundation construction due to the advantages of high construction efficiency, high drilling speed, low cost, small occupied area and the like. However, for geology with more broken stones and stones, such as drilling in the topography of volcanic rhyolite, the problems of difficult hole forming, drill bit damage and the like often occur, the construction efficiency is affected, and improvement is needed.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a construction device of a cast-in-place pile, which has the function of clearing obstacles such as broken stones and stones.

The above object of the present invention is achieved by the following technical solutions: the utility model provides a bored concrete pile's construction equipment, includes the rig, be equipped with the output shaft that can follow vertical direction and go up and down on the rig, the output shaft rotates to be connected on the rig, install the section of thick bamboo that hinders of clearing up on the tip of output shaft, the one end detachably of the section of thick bamboo that hinders of clearing up installs on the output shaft, and the other end of the section of thick bamboo that hinders of clearing up is uncovered setting, is equipped with a plurality of cutting parts on the opening end face of the section of thick bamboo that hinders of clearing up, installs the shielding member on the inside wall of the section of thick bamboo that hinders of clearing up, the shielding member is close to the cutting.

Through adopting above-mentioned technical scheme, when a rig drive obstacles removing section of thick bamboo rotates, the cutting part can cut the downthehole stone of stake, and the rotation of an obstacles removing section of thick bamboo all can produce the extrusion force to the stone under the cutting with descending, and the reaction force of stone backs up the shielding piece, makes the stone enter into the inside of an obstacles removing section of thick bamboo through the passageway, and an obstacles removing section of thick bamboo can also take out the stake hole with the stone of cutting after the cutting is accomplished.

The present invention in a preferred example may be further configured to: the shielding piece is a U-shaped steel wire rope, the steel wire ropes are provided with a plurality of steel wire ropes, two ends of each steel wire rope are fixed on the inner side wall of the obstacle clearing barrel, the arc-shaped middle part of each steel wire rope faces the center of the obstacle clearing barrel along the axial direction, and the steel wire ropes are uniformly distributed around the central shaft of the obstacle clearing barrel.

Through adopting above-mentioned technical scheme, whole clearance barrier section of thick bamboo's simple structure, easy preparation can utilize the waste material of job site to carry out machine-shaping. And wire rope all has better toughness, and the stone leads to wire rope deformation back in getting into the section of thick bamboo of removing obstacles, and wire rope can resume fast to play the effect of the interior stone of support section of thick bamboo of removing obstacles.

The present invention in a preferred example may be further configured to: the end parts of the adjacent steel wire ropes are fixed on the inner wall of the obstacle clearing barrel in a staggered manner along the circumferential direction of the obstacle clearing barrel.

Through adopting above-mentioned technical scheme, when single wire rope atress, wire rope can share adjacent wire rope with power on, reduces single wire rope's atress, reduces wire rope and takes place serious deformation and lead to the condition appearance that wire rope damaged to improve the support of whole wire rope to the stone in the section of thick bamboo of removing obstacles, improve the holding capacity of a section of thick bamboo of removing obstacles to the stone.

The present invention in a preferred example may be further configured to: the shielding piece comprises a frame, a plurality of telescopic plates and a driving assembly, a plurality of channels are formed in the frame, the plurality of telescopic plates correspond to the channels one to one, the telescopic plates are intercepted on the corresponding channels, and the driving assembly controls the telescopic plates to extend or contract.

By adopting the technical scheme, when the telescopic plate is contracted, the shielding area of the telescopic plate for the channel is reduced, and stones can enter the obstacle clearing barrel through the channel; and when the expansion plate extends, the expansion plate enlarges the shielding area of the channel, and the stone in the obstacle clearing barrel is not easy to fall out from the obstacle clearing barrel.

The present invention in a preferred example may be further configured to: the expansion plate comprises a fixed part, a movable part and a plurality of middle parts, the fixed part is fixed on the frame, the movable part is connected to the frame in a sliding mode, the middle parts are sequentially connected between the movable part and the fixed part in a movable mode, and the driving assembly is used for driving the movable part to be far away from or close to the corresponding fixed part.

Through adopting above-mentioned technical scheme, the expansion plate adopts the fixed (fixed part promptly) one end activity (the movable part promptly) of one end mode interception on the passageway, and drive assembly only needs the removal of control movable part can control the expansion plate whether continue the interception on corresponding passageway, more convenient control.

The present invention in a preferred example may be further configured to: the side of the frame, which is far away from the output shaft of the drilling machine, is provided with a baffle plate, an accommodating cavity is formed between the baffle plate and the frame, and the driving assembly is arranged in the accommodating cavity.

Through adopting above-mentioned technical scheme, drive assembly is close to the expansion plate, conveniently drives the expansion plate and removes to drive assembly does not occupy the inner chamber space that a obstacles removing section of thick bamboo is used for placing the stone, guarantees the acquireing stone as much as possible of being under construction at every turn.

The present invention in a preferred example may be further configured to: the thickness of the middle part is gradually reduced from one side close to the fixed part to one side close to the movable part, and a groove for accommodating the adjacent middle part is formed in the side surface of the middle part facing the movable part.

Through adopting above-mentioned technical scheme, the intermediate part that thickness is little can accomodate the big adjacent intermediate part of thickness when following the movable part shrink, reduces the space that occupies to can strengthen the overall structure intensity of expansion plate, reduce and receive too big pressure and lead to deformation when the cutting stone.

The present invention in a preferred example may be further configured to: the outer wall of the middle part is provided with sliding grooves, the inner wall of each groove of the middle part is provided with sliding blocks, and the sliding blocks are connected in the sliding grooves of the adjacent middle parts in a sliding mode.

By adopting the above technical means, the movement of the intermediate portion is restricted, and the intermediate portion can be moved in a predetermined direction, so that the intermediate portion having a large thickness completely houses the adjacent intermediate portions having a small thickness.

The present invention in a preferred example may be further configured to: the driving components are in one-to-one correspondence with the telescopic plates and respectively control the corresponding movable parts to slide on the frame.

Through adopting above-mentioned technical scheme, when the stone card was between frame and movable part, corresponding drive assembly can only order about the movable part and step up the stone, and drive assembly on the other positions can normally work, and mutual noninterference strengthens the interception ability to the stone.

In summary, the invention includes at least one of the following beneficial technical effects:

1. the obstacle clearing barrel is arranged to cut hard stones so as to facilitate normal drilling work, protect a drill bit and improve the working efficiency;

2. through setting up the shielding piece, can allow the stone that the cutting got off to get into the section of thick bamboo of removing obstacles when the cutting stone, and can hinder the stone again and fall out in the section of thick bamboo of removing obstacles when the section of thick bamboo of removing obstacles rises.

Drawings

FIG. 1 is a schematic view of the overall structure;

FIG. 2 is a schematic view of the construction of the barrier clearing barrel;

FIG. 3 is a schematic view of the construction of a shield according to a first embodiment;

FIG. 4 is a schematic view of the structure of the shield according to the second embodiment;

FIG. 5 is a schematic structural view of a retractable plate according to a second embodiment;

FIG. 6 is a schematic structural diagram of a driving assembly according to a second embodiment;

fig. 7 is an enlarged schematic view of a portion a in fig. 6.

In the figure, 1, a drilling machine; 11. an output shaft; 2. a barrier removal cylinder; 21. a cover plate; 3. a blade part; 4. a wire rope; 5. a frame; 51. a frame; 511. an arc-shaped slot; 52. a cross beam; 521. a slot; 6. a baffle plate; 7. a drive assembly; 71. a micro motor; 72. a rack; 73. a gear; 74. a rotating shaft; 8. a retractable plate; 81. a fixed part; 821. a first intermediate portion; 822. a second intermediate portion; 83. a movable portion; 831. a bump; 84. a chute; 85. a slide block.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The first embodiment is as follows: referring to fig. 1, the construction device for a cast-in-place pile disclosed by the invention comprises a drilling machine 1, wherein an output shaft 11 capable of lifting along a vertical direction is arranged on the drilling machine 1, the output shaft 11 is rotatably connected to the drilling machine 1, and a drill bit or an obstacle clearing barrel 2 can be installed on the end part, facing the ground, of the output shaft 11 according to requirements. During the construction, install the drill bit earlier and carry out the drilling on output shaft 11, if touch hard stone drill bit among the drilling process and be difficult to creep into the time, then pull down the drill bit to change and remove a barrier section of thick bamboo 2, carry out the breakage and take out the stone piece to hard stone, make drilling work can continue to go on.

Referring to fig. 1 and 2, one end of the obstacle clearing barrel 2 is detachably mounted on the output shaft 11, and the specific mounting mode may be that a sleeve is welded on the end of the obstacle clearing barrel 2, and after the output shaft 11 extends into the sleeve, the output shaft 11 is fixed in the sleeve by using a bolt. The other end of the obstacle removing cylinder 2 is arranged in an open manner. The opening end face of the obstacle clearing barrel 2 is provided with a plurality of cutting parts 3, the cutting parts 3 are uniformly distributed along the circumferential direction of the obstacle clearing barrel 2, the cutting parts 3 are tungsten steel alloy drilling teeth, and the cutting parts 3 are fixed on the obstacle clearing barrel 2 in a welding mode. An opening communicated with the inner cavity is formed in the circumferential side wall of the obstacle removing barrel 2, an arc-shaped cover plate 21 covers the opening, and the cover plate 21 is fixed to the obstacle removing barrel 2 through countersunk bolts.

Referring to fig. 3, a shielding piece is arranged on the inner side wall of the obstacle clearing barrel 2 and is positioned in one end of the obstacle clearing barrel 2 close to the blade part 3. The shielding piece is the wire rope 4 of U-shaped, and wire rope 4 is equipped with a plurality ofly, and wire rope 4's both ends are all through welded fastening on the inside wall of a obstacles removing section of thick bamboo 2, and wire rope 4's arc middle part is along the center of an axial orientation obstacles removing section of thick bamboo 2, a plurality of wire rope 4 around the center pin evenly distributed of an obstacles removing section of thick bamboo 2. The end parts of the adjacent steel wire ropes 4 are fixed on the inner wall of the obstacle clearing barrel 2 in a staggered manner along the circumferential direction of the obstacle clearing barrel 2. And the both ends of wire rope 4 respectively with the corresponding tip butt of two adjacent wire rope 4, wire rope 4 one end is in the tip that adjacent wire rope 4 contacted is close to the uncovered one side of a section of thick bamboo 2 of removing obstacles, and the tip that the other end of wire rope 4 is in another adjacent wire rope 4 contact is kept away from the uncovered one side of a section of thick bamboo 2 of removing obstacles.

Through the cooperation of wire rope 4 and a section of thick bamboo 2 inner wall of removing obstacles, form a plurality of and the inside passageway of intercommunication of a section of thick bamboo 2 of removing obstacles in a section of thick bamboo 2 of removing obstacles. The obstacle removing cylinder 2 is driven by the output rod to rotate at a high speed during working, and the tungsten steel alloy drilling teeth cut stones by means of force generated by high-speed rotation. And along with removing obstacles section of thick bamboo 2 and sink and rotate simultaneously, the stone can extrude wire rope 4, makes wire rope 4 deformation, enlarges the passageway for the stone can enter into and remove obstacles inside section of thick bamboo 2. And when output shaft 11 stall and begin to rise, the stone in the section of thick bamboo 2 of removing obstacles only led to the fact gravity to wire rope 4, and wire rope 4 butt each other is with the gravity of sharing the stone, and the stone is difficult to break through wire rope 4 to take out the stone in the stake hole of following drilling out, convenient subsequent drilling work. After the obstacle removing barrel 2 returns to the ground, the cover plate 21 on the side wall of the obstacle removing barrel 2 is opened, and then the stones are poured out from the opening of the side wall of the obstacle removing barrel 2.

Example two: the difference from the first embodiment is that the shield is different.

Referring to figure 4, in this embodiment the screen comprises a frame 5, a telescopic plate 8 and a drive assembly 7 (not shown).

The frame 5 comprises a circular frame 51 and three beams 52, the frame 51 is fixed on the inner wall of the obstacle clearing barrel 2, the central shaft of the frame 51 and the central shaft of the obstacle clearing barrel 2 are on the same straight line, the three beams 52 are all positioned in the frame 51, one end of each beam 52 is fixed on the inner side wall of the frame 51, the other end of each beam 52 faces the center of the frame 51, and the end parts of the three beams 52 facing the center of the frame 51 are converged together to form a cylindrical combination part. The three beams 52 divide the inner ring of the frame 51 evenly into three channels of the same cross-section.

Referring to fig. 4 and 6, a baffle 6 is fixed on the side of the frame 51 facing the opening, the baffle 6 is funnel-shaped, and one side of the baffle 6 close to the inner wall of the obstacle removing barrel 2 is closer to the opening of the obstacle removing barrel 2 than one side of the baffle 6 far away from the inner wall of the obstacle removing barrel 2. Baffle 6, frame 51 and the inner wall of a clearance barrier section of thick bamboo 2 enclose jointly and become to hold the chamber, and drive assembly 7 installs in holding the chamber.

Referring to fig. 4 and 5, there are three telescopic plates 8, and the three telescopic plates 8 are respectively covered in the three channels.

The expansion plate 8 includes fixed part 81, movable part 83 and two intermediate parts constitute, wherein fixed part 81, the thickness of intermediate part and movable part 83 is all inequality, the thickness of fixed part 81 is the biggest, the thickness of movable part 83 is minimum, and two intermediate parts divide into first intermediate part 821 that thickness is thick and second intermediate part 822 that thickness is little according to the difference of thickness, fixed part 81 in three expansion plate 8 is fixed respectively on three crossbeam 52, offer the recess that is used for holding first intermediate part 821 on the fixed part 81 deviates from the lateral wall of continuous crossbeam 52, offer the recess that is used for holding second intermediate part 822 on the first intermediate part 821 of deviating from the lateral wall of fixed part 81, and offer the recess that is used for holding movable part 83 on the second intermediate part 822 deviates from the lateral wall of first intermediate part 821.

Referring to fig. 5 and 6, circular arc-shaped sliding grooves 84 are formed in the side faces, facing the opening, of the middle portion and the movable portion 83, the circle center of each circular arc-shaped sliding groove 84 is located on the central axis of the cylindrical combining portion, and sliding blocks 85 matched with the sliding grooves 84 are arranged on the inner walls of the grooves of the fixed portion 81 and the middle portion. One end of the slide slot 84 extends to the side wall of the respective intermediate or movable portion 83 facing away from the fixed portion 81, and the other end of the slide slot 84 has a slot wall that limits the continued movement of the slide block 85. An annular groove is formed in the inner wall of the frame 51, and an arc-shaped groove 511 communicated with the annular groove is formed in the side face, facing the baffle 6, of the frame 51. An arc-shaped guide frame (not shown) is further arranged on one side of the frame 51 close to the inner ring. The guide, arcuate slot 511 is also oriented toward the central axis of the coupling. A projection 831 extends from the movable portion 83, and the projection 831 is slidably connected in the annular groove.

Referring to fig. 6 and 7, there are three driving assemblies 7, the three driving assemblies 7 correspond to the three expansion plates 8, each driving assembly 7 includes a gear 73, a circular arc-shaped rack 72 and a micro motor 71, the rack 72 is mounted on the frame 51, and the center of the rack 72 is located on the central axis of the joint. Instead of three circular arc-shaped toothed racks 72, annular toothed racks 72 can also be used for mounting purposes. The micro motor 71 is slidably connected to the guide frame, a rotating rod is coaxially connected to the output shaft 11 of the micro motor 71, the rotating rod penetrates through the arc-shaped groove 511 to be rotatably connected to the projection 831, and the gear 73 is coaxially connected to the rotating rod and meshed with the rack 72.

When the cut stone block needs to be stored, the micro motor 71 drives the gear 73 to rotate, the gear 73 drives the movable portion 83 to move towards the corresponding fixed portion 81 side through meshing transmission with the rack 72, in the moving process, the movable portion 83 sequentially pushes the second middle portion 822 and the first middle portion 821 to move together, after the moving process is finished, the movable portion 83 is located in a groove of the second middle portion 822, the second middle portion 822 is located in a groove of the first middle portion 821, and the first middle portion 821 is located in a groove of the fixed portion 81. The passage is opened to facilitate the entry of rocks into the barrel 2. When the obstacle clearing barrel 2 is to be lifted, the output shaft 11 of the micro motor 71 is reversely rotated, the movable part 83 is far away from the corresponding fixed part 81 under the transmission of the gear 73 and the rack 72, when the slide block 85 of the second middle part 822 abuts against the side wall of the slide groove 84 on the movable part 83, the movable part 83 drives the second middle part 822 to move again, and similarly, when the slide block 85 on the first middle part 821 abuts against the side wall of the slide groove 84 on the second middle part 822, the first middle part 821 also starts to move. Thereby re-closing the channel.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims

1. The utility model provides a construction equipment of bored concrete pile, includes rig (1), be equipped with output shaft (11) that can follow vertical direction lift on rig (1), output shaft (11) rotate to be connected on rig (1), its characterized in that: install a barrel of obstacles removing (2) on the tip of output shaft (11), the one end detachably of a barrel of obstacles removing (2) is installed on output shaft (11), and the other end of a barrel of obstacles removing (2) is uncovered setting, is equipped with a plurality of cutting parts (3) on the opening end face of a barrel of obstacles removing (2), installs the shielding piece on the inside wall of a barrel of obstacles removing (2), the shielding piece is close to cutting part (3), the inside wall cooperation of shielding piece and a barrel of obstacles removing (2) cuts apart a plurality of passageways on the uncovered of a barrel of obstacles removing (2).

2. A cast-in-place pile construction apparatus as claimed in claim 1, wherein: the shielding piece is a U-shaped steel wire rope (4), the steel wire rope (4) is provided with a plurality of steel wire ropes, the two ends of each steel wire rope (4) are fixed on the inner side wall of the obstacle clearing barrel (2), the arc-shaped middle part of each steel wire rope (4) faces the center of the obstacle clearing barrel (2) along the axial direction, and the steel wire ropes (4) are evenly distributed around the center shaft of the obstacle clearing barrel (2).

3. A cast-in-place pile construction apparatus as claimed in claim 2, wherein: the end parts of the adjacent steel wire ropes (4) are fixed on the inner wall of the obstacle clearing barrel (2) in a staggered manner along the circumferential direction of the obstacle clearing barrel (2).

4. A cast-in-place pile construction apparatus as claimed in claim 1, wherein: the shielding piece comprises a frame (5), a plurality of expansion plates (8) and a driving assembly (7), a plurality of channels are formed in the frame (5), the expansion plates (8) correspond to the channels one to one, the expansion plates (8) are intercepted on the corresponding channels, and the driving assembly (7) controls the expansion plates (8) to extend or contract.

5. A cast-in-place pile construction apparatus as claimed in claim 4, wherein: expansion plate (8) constitute including fixed part (81), movable part (83) and a plurality of intermediate part, fixed part (81) are fixed on frame (5), movable part (83) sliding connection is on frame (5), and a plurality of intermediate parts swing joint is in proper order between movable part (83) and fixed part (81), drive assembly (7) are used for driving movable part (83) to keep away from or are close to corresponding fixed part (81).

6. A cast-in-place pile construction apparatus as claimed in claim 4, wherein: the drilling machine is characterized in that a baffle (6) is arranged on one side, deviating from an output shaft (11) of the drilling machine (1), of the frame (5), an accommodating cavity is formed between the baffle (6) and the frame (5), and the driving assembly (7) is installed in the accommodating cavity.

7. A cast-in-place pile construction apparatus as claimed in claim 5, wherein: the thickness of the middle part is gradually reduced from one side close to the fixing part (81) to one side close to the movable part (83), and grooves for accommodating the adjacent middle parts are formed in the side surface of the middle part facing the movable part (83).

8. A cast-in-place pile construction apparatus as claimed in claim 7, wherein: all seted up spout (84) on the outer wall of intermediate part, all seted up slider (85) on the recess inner wall of intermediate part, slider (85) sliding connection is in spout (84) of adjacent intermediate part.

9. A cast-in-place pile construction apparatus as claimed in claim 5, wherein: the driving assemblies (7) are multiple, the driving assemblies (7) correspond to the telescopic plates (8) one by one, and the driving assemblies (7) respectively control the corresponding movable parts (83) to slide on the frame (5).