CN215927280U

CN215927280U - Sleeve pipe construction equipment

Info

Publication number: CN215927280U
Application number: CN202121571149.7U
Authority: CN
Inventors: 李超; 周智文; 朱钰; 谢树明; 李金兰
Original assignee: Runbon Holding Group Co ltd
Current assignee: Runbon Holding Group Co ltd
Priority date: 2021-07-12
Filing date: 2021-07-12
Publication date: 2022-03-01
Anticipated expiration: 2031-07-12

Abstract

The utility model relates to a casing pipe construction device, which comprises a casing pipe, a rack and a drilling machine, wherein the drilling machine comprises a drill bit, a spiral drill rod and a driving device, the drill bit is positioned at the bottom of the drill rod, screw teeth on the outer surface of the spiral drill rod are rock-soil conveyors, the driving device of the spiral drill rod is arranged on the rack, the rack is positioned at the top of the casing pipe, and the screw teeth on part or all adjacent drill rods are mutually embedded and meshed to form an extrusion conveyor for excavated rock-soil; rock soil excavated by the drill bit is conveyed to the upper part of the sleeve pipe through the screw threads on the drill rod, and the sleeve pipe construction device descends along with the rock soil; the casing pipe construction device excavates and conveys rock soil through the drill rod in the casing pipe, the casing pipe can be annular, rectangular or other special shapes, and the size of the casing pipe can be made to be large; because the full casing protective wall does not need mud, the concrete pouring quality is more guaranteed, and the environmental protection is more environmental friendly without pollution.

Description

Sleeve pipe construction equipment

Technical Field

The utility model relates to a casing construction device, in particular to a casing construction device for underground buildings.

Background

The existing pile foundation is limited by construction equipment in the construction of a cast-in-place pile method, and is generally provided with a circular hole, so that the pile is cylindrical in shape, and the maximum size of a single pile foundation is limited; the slurry wall protection is adopted to form holes for pouring, the pile forming quality is difficult to ensure, and the slurry wall protection is adopted, so that the slurry seriously pollutes the environment.

Disclosure of Invention

The utility model aims to provide a casing construction device. The casing pipe construction device is used for the construction of underground buildings such as pile foundations, underground continuous walls and the like, rock and soil are excavated through the spiral drill rod in the casing pipe, the casing pipe and the drilling machine sink, and the section size range of the casing pipe is large; the full casing pipe is used as a zero-time support, a mud protective wall is not needed, and the quality of the poured underground building is guaranteed.

In order to achieve the purpose, the utility model provides the following technical scheme:

the casing pipe construction device for the underground building comprises a casing pipe, a rack and a drilling machine, wherein the drilling machine comprises a drill bit, a spiral drill rod and a driving device, the drill bit is positioned at the bottom of the spiral drill rod, screw teeth on the outer surface of the spiral drill rod are a rock-soil conveyor, the driving device of the spiral drill rod is installed on the rack, the rack is positioned at the top of the casing pipe, and part or all of the screw teeth on the adjacent spiral drill rods are mutually embedded and meshed to form an extrusion conveyor for excavated rock-soil; the rock soil excavated by the drill bit is conveyed to the upper part of the sleeve pipe through the screw threads on the spiral drill rod, and the sleeve pipe construction device descends along with the rock soil.

Preferably, in the casing construction device, the drilling machine includes a plurality of auger rods, the thread start angles of the threads on the outer surfaces of the adjacent auger rods are staggered, and the drill bit is installed on a line connecting the center point of the bottom of the auger rod and the start point of the threads.

Preferably, in the casing construction device, a power device of the driving device is connected with the driving wheel, the driven wheel is fixedly mounted at the top of the auger stem, and the drilling machine is provided with a set of power device for driving the plurality of auger stems and the drill bit.

Preferably, in the casing construction device, the driving wheel and the driven wheel are gears, the driven wheels on the adjacent spiral drill rods are meshed with each other, the outer surface threads of the adjacent spiral drill rods are respectively rotated leftwards and rightwards, and holes for discharging rock and soil are arranged in the top area of the spiral drill rods on the rack.

Preferably, in the casing running device, the drilling machine comprises a plurality of auger pipes, and each auger pipe is provided with a set of driving device.

Preferably, in the casing construction device, the casing includes an outer casing and an inner casing, the frame is an isolation support of the outer casing and the inner casing, the auger stem is located between the outer casing and the inner casing, and the inner surface of the outer casing and the outer surface of the inner casing are positioning surfaces of the auger stem, so as to ensure that the axis of the auger stem, the axis of the outer casing and the axis of the inner casing are parallel.

Preferably, in the casing working apparatus, the casing is circular, square or rectangular.

Preferably, in the casing pipe construction device, after the casing pipe construction device is lowered to a proper position, the casing pipe is a temporary supporting structure of a foundation pit.

As can be seen from the above description, the casing pipe construction device provided by the present invention excavates and conveys rock soil through the auger stem in the casing pipe, the casing pipe may be annular, rectangular or other special shapes, and the size of the casing pipe may also be made very large; because the full casing protective wall does not need mud, the concrete pouring quality is more guaranteed, and the environmental protection is more environmental friendly without pollution.

Drawings

Fig. 1 shows that the drill bit 51 of the drilling machine 5 excavates the rock soil at the bottom, the rock soil is conveyed to the upper part of the casing 3 through the screw threads on the auger stem 52 and is discharged through the hole 41, and the casing construction device 2 sinks integrally;

FIG. 2 is a view from the direction A of FIG. 1, and is also a schematic view of the construction of a drilling rig 5 having four bits 51, with adjacent bits 51 being at 90 degrees of cutter;

FIG. 3 is a schematic view of the structure in which the drill bit 51 is located at the bottom of the auger stem 52, and the cutter of the drill bit 51 is installed on the line connecting the center point of the auger stem 52 and the starting point of the thread;

fig. 4 shows that the power device 531 adopts motors, which can also use hydraulic motors, and one motor drives the driven wheels 533 on the four auger stems 52 through the driving wheel 532, and the driving wheel 532 and the driven wheels 533 are in gear transmission, and can also adopt a chain transmission form; the driven pulleys 533 on adjacent auger shafts 52 are engaged with each other in opposite directions, and the outer surfaces of the adjacent auger shafts 52 have opposite thread directions.

Fig. 5 is a schematic structural view of the frame 4 provided with holes 41 for discharging rock soil;

fig. 6 is a schematic structural diagram of the auger stem 52 located between the outer casing 31 and the inner casing 32, and a set of power device 531 may be used to drive all the auger stems 52, or a plurality of power devices 531 may be added.

FIG. 7 is a bottom view of FIG. 6, also illustrating the offset configuration of the bits 51 of adjacent auger stems 52;

fig. 8 is a schematic structural view showing that each auger stem 52 is provided with an independent driving device 53, and the drilling machine 5 is fixed on the top of the casing 3 through the frame 4, and the screw threads on the adjacent auger stems 52 are engaged with each other in an embedded manner to form an extruding conveyer for excavated soil; the soil excavated by the drill bit 51 is transferred to the upper side of the casing 3 by the screw threads of the auger stem 52, and the excavated soil is discharged through the hole 41, with which the casing working apparatus 2 descends.

Fig. 9 is a view taken along direction a of fig. 8, and is also a schematic view of the structure in which the sleeve 3 has a rectangular shape.

Fig. 10 is a schematic structural view of the casing 3 as a temporary support for placing the underground structure 1.

Detailed Description

In order to make those skilled in the art better understand the technical solutions provided by the present invention, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1 to 3, a casing construction device 2 for an underground structure 1 includes a casing 3, a frame 4 and a drilling machine 5, the drilling machine 5 includes a drill bit 51, an auger stem 52 and a driving device 53, the drill bit 51 is positioned at the bottom of the auger stem 52, the screw threads on the outer surface of the auger stem 52 are rock-soil conveyors, the driving device 53 of the auger stem 52 is mounted on the frame 4, the frame 4 is positioned at the top of the casing 3, and the screw threads on two adjacent auger stems 52 are engaged with each other to form an extruding conveyor of excavated rock-soil; the rock soil excavated by the drill bit 51 is conveyed to the upper part of the casing 3 through the screw threads on the auger stem 52, and the casing construction device 2 descends along with the conveying; as shown in FIG. 2, the drilling machine 5 comprises two auger shafts 52, the thread start angles of the threads on the outer surfaces of the adjacent auger shafts 52 are staggered, and a drill 51 is installed on a line connecting the center point of the bottom of the auger shaft 52 and the start point of the threads.

As shown in fig. 4 and 5, the power device 531 of the driving device 53 is connected with the driving wheel 532, the driven wheel 533 is fixedly mounted on the top of the auger stem 52, and the drilling machine 5 is provided with a set of power device 531 for driving the plurality of auger stems 52 and the drill bit 51; the driving wheel 532 and the driven wheel 533 are gears, the driven wheels 533 on the adjacent spiral drill rods 52 are meshed with each other, the outer surface threads of the adjacent spiral drill rods 52 are respectively rotated leftwards and rightwards, and holes 41 for discharging rock and soil are formed in the top area of the spiral drill rods 52 on the rack 4.

As shown in fig. 8, the drilling machine 5 comprises a plurality of auger rods 52, each auger rod 52 being provided with a set of drive means 53.

As shown in fig. 6 and 7, the casing 3 includes an outer casing 31 and an inner casing 32, the frame 4 is an isolated support for the outer casing 31 and the inner casing 32, the auger stem 52 is located between the outer casing 31 and the inner casing 32, and the inner surface of the outer casing 31 and the outer surface of the inner casing 32 are positioning surfaces of the auger stem 52, so as to ensure that the axis of the auger stem 52, the axis of the outer casing 31 and the axis of the inner casing 32 are parallel.

The casing 3 constitutes a housing of the rock soil extruding conveyor to assist the excavated rock soil to be conveyed out when the boring machine 5 excavates the rock soil, and the casing 3 may have various shapes such as a circle of fig. 2, a ring of fig. 7, and a rectangle of fig. 9 according to the structural requirements of the underground construction.

As shown in fig. 10, after the casing construction device 2 is lowered to the proper position, the casing 3 is lifted while the casing 3 is lifted as the concrete is poured after the steel reinforcement cage is hung on the casing 3, the casing 3 is completely pulled out after the pouring is completed, and the underground building 1 is completely poured without a mud retaining wall.

Claims

1. A casing pipe construction device is characterized in that a casing pipe construction device (2) for an underground building (1) comprises a casing pipe (3), a rack (4) and a drilling machine (5), wherein the drilling machine (5) comprises a drill bit (51), a spiral drill rod (52) and a driving device (53), the drill bit (51) is positioned at the bottom of the spiral drill rod (52), the screw teeth on the outer surface of the spiral drill rod (52) are rock-soil conveyors, the driving device (53) of the spiral drill rod (52) is installed on the rack (4), the rack (4) is positioned at the top of the casing pipe (3), and part or all of the screw teeth on the adjacent spiral drill rod (52) are mutually embedded and meshed to form an extrusion conveyor for excavating rock soil; the rock soil excavated by the drill bit (51) is conveyed to the upper part of the casing (3) through the screw threads on the auger stem (52), and the casing construction device (2) descends along with the rock soil.

2. A casing working apparatus according to claim 1, wherein the drilling machine (5) comprises a plurality of auger shafts (52), the thread start angles of the threads of the outer surfaces of the adjacent auger shafts (52) are staggered, and the drill (51) is installed on a line connecting the center point of the bottom of the auger shaft (52) and the start point of the thread.

3. A casing working apparatus according to claim 2, wherein the power unit (531) of the driving unit (53) is connected to the driving wheel (532), the driven wheel (533) is fixed to the top of the auger stem (52), and the drilling machine (5) is provided with a set of power unit (531) for driving the plurality of auger stems (52) and the drill bit (51).

4. A casing working apparatus according to claim 3, wherein the driving pulley (532) and the driven pulley (533) are gears, the driven pulley (533) of the adjacent auger shafts (52) are engaged with each other, the outer surface threads of the adjacent auger shafts (52) are left-handed and right-handed, respectively, the frame (4) is provided with a hole (41) in the top region of the auger shaft (52), and the soil excavated by the boring machine (5) is discharged through the hole (41).

5. A casing working apparatus according to claim 2, characterised in that the drilling machine (5) comprises a plurality of auger shafts (52), and a drive means (53) is provided for each auger shaft (52).

6. A casing construction device according to claim 4 or 5, characterized in that the casing (3) comprises an outer casing (31) and an inner casing (32), the frame (4) is an isolated support for the outer casing (31) and the inner casing (32), the auger stem (52) is located between the outer casing (31) and the inner casing (32), the inner surface of the outer casing (31) and the outer surface of the inner casing (32) are positioning surfaces of the auger stem (52), and the axial line of the auger stem (52), the axial line of the outer casing (31) and the axial line of the inner casing (32) are parallel.

7. A casing working apparatus according to claim 4 or 5, characterised in that the casing (3) is circular, square or rectangular.

8. A casing working apparatus according to claim 4 or 5, characterised in that the casing (3) is a temporary support structure for a pit after the casing working apparatus (2) has been lowered into position.