CN215332661U

CN215332661U - Sleeve rotary excavating equipment

Info

Publication number: CN215332661U
Application number: CN202121318071.8U
Authority: CN
Inventors: 石金星; 曹卫宾; 吴旭; 刘福彬; 崔凯
Original assignee: Qingdao Engineering Co Ltd of China Railway No 10 Engineering Group Co Ltd
Current assignee: Qingdao Engineering Co Ltd of China Railway No 10 Engineering Group Co Ltd
Priority date: 2021-06-11
Filing date: 2021-06-11
Publication date: 2021-12-28
Anticipated expiration: 2031-06-11

Abstract

The utility model relates to a sleeve rotary drilling device, which belongs to the technical field of building construction drilling devices, and the technical scheme of the sleeve rotary drilling device is characterized by comprising a rotary drilling rig and a pipe twisting machine, wherein the rotary drilling rig comprises a base, a mast, a luffing mechanism and a lifting driving device; a drill rod which is connected with the mast in a sliding way along the length direction of the mast is arranged on the mast, and a drilling tool is fixed at the lower end of the drill rod; the lower end of the mast is fixedly provided with a power head for driving a drill rod to rotate, the drill rod comprises an upper end rod body, a lower end rod body and a plurality of middle rod bodies positioned between the upper end rod body and the lower end rod body, and the middle rod bodies are detachably connected with the upper end rod body and the lower end rod body; the upper end of the mast is provided with a sliding positioner, and the sliding positioner is rotatably connected with the upper end rod body around the axis of the upper end rod body; the drill rod comprises a plurality of sections of sub rod bodies which are detachably connected, and the sub rod bodies can be gradually installed during rotary digging, so that the overall height required by equipment during construction is reduced.

Description

Sleeve rotary excavating equipment

Technical Field

The utility model relates to the technical field of building construction drilling equipment, in particular to a sleeve rotary drilling equipment.

Background

The rotary drilling pile is a pile type constructed by a rotary drilling rig, is called a rotary drilling bored concrete pile, and is an advanced pile foundation construction process popularized and used in recent years. The method is widely applied to the construction of foundation piles of roads, railways, bridges and large buildings in China. The existing equipment for rotary drilling construction generally comprises a pipe twisting machine and a rotary drilling rig, wherein the rotary drilling rig is responsible for pressing a sleeve into the ground and driving a drill bit to drill and take earth, and the pipe twisting machine is responsible for pulling the drilled sleeve out of the ground and disassembling a steel protection cylinder.

The drill bit and the drill bit driver of the rotary drilling rig are arranged at the lower end of the drill rod, and the length of the drill rod determines the drilling depth of the rotary drilling rig. When the rated drilling depth of the rotary drilling rig is deep, the whole drill rod needs to have a long length, and the drill rod needs to have a long length, so that the whole height of the rotary drilling rig is high when rotary drilling construction is carried out, interference with surrounding buildings or public equipment is possible, and normal construction progress is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a casing rotary excavating device, wherein a drill rod of the casing rotary excavating device comprises a plurality of sections of sub rod bodies which are detachably connected, and the sub rod bodies can be gradually installed during rotary excavating, so that the overall height required by the device during construction is reduced.

The technical purpose of the utility model is realized by the following technical scheme: a sleeve rotary drilling device comprises a rotary drilling rig and a pipe twisting machine, wherein the rotary drilling rig comprises a base, a mast arranged on the base and a luffing mechanism arranged between the mast and the base; a drill rod which is connected with the mast in a sliding manner along the length direction of the mast is arranged on the mast, and a drilling tool is fixed at the lower end of the drill rod; a power head for driving a drill rod to rotate is fixed at the lower end of the mast, the drill rod comprises an upper end rod body, a lower end rod body and a plurality of middle rod bodies positioned between the upper end rod body and the lower end rod body, and the middle rod bodies are detachably connected with the upper end rod body and the lower end rod body; the upper end of the mast is provided with a sliding positioner which is in sliding contact with the mast along the length direction of the mast, and the sliding positioner is rotatably connected with the upper end rod body around the axis of the upper end rod body; the rotary drilling rig further comprises a lifting driving device for driving the sliding positioner to slide along the length direction of the mast.

According to the technical scheme, the lifting driving device drives the sliding positioner to slide along the length direction of the mast, so that the drill rod is driven to move along the length direction of the mast; the drilling rod includes the upper end body of rod, the lower extreme body of rod and a plurality of is located the middle body of rod between the upper end body of rod and the lower extreme body of rod to the upper end body of rod, the lower extreme body of rod and a plurality of are located the middle body of rod between the upper end body of rod and the lower extreme body of rod all adopt can dismantle the connection, and then probe a section distance back under the drilling rod, dismantle the double-phase adjacent middle body of rod again, insert the middle drilling rod of a lesson, thereby can increase the whole degree of depth of digging soon of equipment, reduce the headroom of equipment when using.

Preferably, the middle rod body comprises a main rod body and a rectangular positioning block fixed at one end of the main rod body; one end of the main rod body, which is far away from the rectangular positioning block at the end part of the main rod body, is provided with a rectangular positioning groove for being spliced with the rectangular positioning block; the rectangular positioning block is provided with a mounting hole, and two side walls of the rectangular positioning groove are provided with connecting holes which are axially aligned with the mounting hole; the adjacent middle rod bodies are bolted and fixed through the mounting holes and the connecting holes.

Through the technical scheme, through the grafting cooperation of rectangle locating piece and rectangle constant head tank, and then install the location with two adjacent middle body of rod, through setting up mounting hole on the rectangle locating piece and setting up at rectangle constant head tank department connecting hole, it is fixed with two adjacent middle body of rod bolt connections to can convenient and fast assemble and the split to the middle body of rod.

Preferably, the sliding positioner comprises a disc-shaped main body and two limiting arms respectively positioned at two sides of the disc-shaped main body, and the two limiting arms are respectively positioned at two sides of the mast.

Through the technical scheme, the sliding positioner comprises the disc-shaped main body and the limiting arms on two sides, and then the sliding positioner can stably slide along the length direction of the mast through the cooperation of the lower limiting arm and the mast.

Preferably, one side of the limiting arm close to the mast is provided with a limiting wheel rotatably connected with the limiting arm, the surfaces of two sides of the mast are respectively provided with a limiting groove along the length direction of the mast, and the limiting wheel is arranged in the limiting groove.

Through above-mentioned technical scheme, through setting up the spacing groove in the length direction of mast, and then set up spacing wheel through the one side that is close to the mast at spacing arm, and then through the cooperation of spacing wheel and spacing groove, more steady when making the slide locator slide along the length direction of mast.

Preferably, the lifting driving device comprises a connecting rope and a winch for winding and unwinding the connecting rope; one end of the connecting rope is connected with the sliding positioner; a plurality of positioning sleeves for restraining the connecting ropes are fixed on the mast; the connecting rope axially penetrates through the positioning sleeve.

According to the technical scheme, the lifting driving device takes the winch as a power source, the connecting rope is restrained through the positioning sleeve, and the lifting control is performed on the drill rod under the gravity of the drill rod during rotary drilling construction through the retracting control of the connecting rope; the hoisting machine and the connecting rope are adopted to control the lifting of the drill rod, the structure is simple, the maintenance is easy, and the adjustable range is large.

Preferably, a chassis of the pipe twisting machine is fixedly connected with the base, and when the mast is in a vertical state, the drill rod and the positioning hole in the chassis are coaxially arranged.

Through the technical scheme, the base plate of the pipe rolling machine is fixedly connected with the base, so that the pipe rolling machine can move along with the rotary drilling rig, after the pipe rolling machine is placed and positioned, the mast is adjusted into a vertical state through the amplitude variation mechanism, the alignment operation of the drilling tool and the pile casing is completed, and the operation is convenient and fast.

Preferably, the bottom of the machine base is provided with a crawler belt walking device.

Through the technical scheme, the crawler traveling device is arranged at the bottom of the base, so that the equipment is conveniently moved integrally on a construction site, and the use is more convenient.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description, serve to explain the principles of the utility model.

Fig. 1 is a schematic structural diagram of a casing pipe rotary excavating device.

FIG. 2 is a schematic view showing the mating relationship of the slide positioner and the mast.

Fig. 3 is a schematic structural view showing a connection relationship between intermediate rods.

Wherein, 1, a machine base; 2. a mast; 21. a limiting groove; 22. a positioning sleeve; 3. a luffing mechanism; 31. a triangular arm; 32. an upper hydraulic cylinder; 33. a lower hydraulic cylinder; 34. a support hydraulic cylinder; 4. a crawler traveling device; 5. a drill stem; 51. an upper end rod body; 52. a lower end rod body; 53. a middle rod body; 531. a main rod body; 532. a rectangular positioning block; 533. a rectangular positioning groove; 534. mounting holes; 535. connecting holes; 54. connecting columns; 55. a connecting nut; 6. drilling tools; 7. a power head; 8. a slide locator; 81. A disk-shaped body; 82. a limiting arm; 83. a limiting wheel; 9. a lift drive; 91. connecting ropes; 92. A hoisting machine.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings. In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

Example (b):

a sleeve rotary drilling device, referring to fig. 1, comprises a rotary drilling rig and a pipe twisting machine, wherein in fig. 1, A is the pipe twisting machine, and B is a protective cylinder. The rotary drilling rig comprises a base 1, a mast 2 arranged on the base 1 and a luffing mechanism 3 arranged between the mast 2 and the base 1. The luffing mechanism 3 is used for the driven adjustment of the attitude of the mast 2. The bottom of the machine base 1 is provided with a crawler belt walking device 4. The mast 2 is provided with a drill rod 5 which is connected with the mast 2 in a sliding way along the length direction of the mast 2, and the lower end of the drill rod 5 is fixed with a drilling tool 6. A power head 7 for driving the drill rod 5 to rotate is fixed at the lower end of the mast 2, and the drill rod 5 axially penetrates through the power head 7. The power head 7 and the drilling tool 6 are mechanical devices commonly used in the art and will not be described in detail herein. The chassis of the pipe twisting machine is fixedly connected with the base 1, and when the mast 2 is in a vertical state, the drill rod 5 and the positioning hole in the chassis are coaxially arranged. Through the setting of crawler belt running gear 4, and then conveniently carry out the bulk movement to equipment at the construction place to it is more convenient when using. Through the chassis of the pipe rolling machine and the base 1 which are fixedly connected, the pipe rolling machine can move along with the rotary drilling rig, after the pipe rolling machine is placed and positioned, the mast 2 is adjusted to be in a vertical state through the amplitude variation mechanism 3, so that the alignment operation of the drilling tool 6 and the pile casing is completed, and the operation is convenient and fast.

Referring to fig. 1, the horn 3 includes a triangular arm 31, an upper hydraulic cylinder 32, a lower hydraulic cylinder 33, and a support hydraulic cylinder 34. The triangular arm 31 comprises three articulated positions, one of which is articulated with the mast 2 and the other two of which are articulated with the piston rod of the upper hydraulic cylinder 32 and the piston rod of the lower hydraulic cylinder 33, respectively. The cylinders of the upper hydraulic cylinder 32 and the lower hydraulic cylinder 33 are respectively hinged with the machine base 1. The cylinder of the support hydraulic cylinder 34 is hinged to the triangular arm 31, and the end of the piston rod of the support hydraulic cylinder 34 is located at the middle position of the mast 2 and is hinged to the mast 2. The state of the mast 2 is adjusted by synchronously extending and retracting the piston rods of the upper hydraulic cylinder 32, the lower hydraulic cylinder 33 and the support hydraulic cylinder 34, so that rotary excavating construction and storage and transportation are facilitated.

Referring to fig. 1, the drill rod 5 includes an upper rod 51, a lower rod 52, and a plurality of intermediate rods 53 disposed between the upper rod 51 and the lower rod 52, wherein the intermediate rods 53 are detachably connected to each other, and the intermediate rods 53 are detachably connected to the upper rod 51 and the lower rod 52. The upper end of the mast 2 is provided with a slide positioner 8 which is in sliding contact with the mast 2 along the length of the mast 2. The sliding locator 8 is rotatably connected with the upper end rod body 51 around the axis of the upper end rod body 51. The rotary drilling rig further comprises a lifting driving device 9 for driving the sliding positioner 8 to slide along the length direction of the mast 2. The lift drive device 9 includes a connection rope 91 and a hoist 92 for winding and unwinding the connection rope 91. One end of the connection cord 91 is connected to the slide retainer 8. A plurality of positioning sleeves 22 for restraining the connecting ropes 91 are fixed on the mast 2, and the connecting ropes 91 axially penetrate through the positioning sleeves 22. When rotary excavating construction is carried out, the luffing mechanism 3 drives the mast 2 to enable the mast 2 to be in a vertical state, then the winch 92 gradually pays off the connecting rope 91, the drill rod 5 moves downwards under the action of gravity, and the drill rod 5 is restrained through the cooperation of the sliding positioner 8 and the mast 2, so that the drill rod 5 is kept in a vertical state. After the drill rod 5 drills into the ground surface for a certain distance, the two middle rod bodies 53 of the drill rod 5 are disassembled, and the winch 92 drives the upper end rod body 51 to move upwards, so that the middle drill rod 5 is connected between the two disassembled middle rod bodies 53, and the rotary drilling depth of the rotary drilling equipment for the casing can be further increased.

Referring to fig. 1 and 2, the sliding positioner 8 includes a disc-shaped body 81 and two limit arms 82 respectively located at two sides of the disc-shaped body 81, the upper rod 51 is rotatably connected to the disc-shaped body 81, and the two limit arms 82 are respectively located at two sides of the mast 2. One side of the limiting arm 82 close to the mast 2 is provided with a limiting wheel 83 which is rotatably connected with the limiting arm 82, the surfaces of two sides of the mast 2 are respectively provided with a limiting groove 21 along the length direction of the mast 2, and the limiting wheel 83 is arranged in the limiting groove 21. Through the comprehensive arrangement of the limiting arm 82 and the limiting wheel 83, good constraint is achieved between the sliding positioner 8 and the mast 2, and therefore the sliding positioner 8 can slide stably along the length direction of the mast 2.

Referring to fig. 1 and 3, the intermediate lever 53 includes a main lever 531 and a rectangular positioning block 532 fixed to one end of the main lever 531. One end of the main rod body 531, which is far away from the rectangular positioning block 532 at the end part thereof, is provided with a rectangular positioning groove 533 for being inserted into the rectangular positioning block 532. The rectangular positioning block 532 is provided with a mounting hole 534, and two side walls of the rectangular positioning groove 533 are provided with connecting holes 535 which are axially aligned with the mounting hole 534. The two adjacent middle rod bodies 53 are fixedly connected through the bolt assembly, the bolt assembly comprises a connecting column 54 and a connecting nut 55, the peripheral surfaces of the two ends of the connecting column 54 are respectively provided with a connecting external thread, and the connecting nut 55 is in threaded engagement with the connecting external thread. After the rectangular positioning block 532 is inserted into the rectangular positioning groove 533, the connecting column 54 is used to axially penetrate through the mounting hole 534 and the connecting hole 535, and then two connecting nuts 55 are mounted on the connecting external threads at the two ends of the connecting column 54, so as to connect and fix the two intermediate rods 53. The connection between the middle rod 53 and the upper rod 51 and the connection between the middle rod 53 and the lower rod 52 are the same as the connection between the two middle rods 53, and will not be described herein.

Although some specific embodiments of the present invention have been described in detail by way of illustration, it should be understood by those skilled in the art that the above illustration is only for the purpose of illustration and is not intended to limit the scope of the utility model. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the utility model. The scope of the utility model is defined by the appended claims.

Claims

1. A sleeve rotary drilling rig comprises a rotary drilling rig and a pipe twisting machine, wherein the rotary drilling rig comprises a base (1), a mast (2) arranged on the base (1) and a luffing mechanism (3) arranged between the mast (2) and the base (1); a drill rod (5) which is connected with the mast (2) in a sliding manner along the length direction of the mast (2) is arranged on the mast (2), and a drilling tool (6) is fixed at the lower end of the drill rod (5); the lower extreme of mast (2) is fixed with and is used for driving drilling rod (5) pivoted unit head (7), its characterized in that: the drill rod (5) comprises an upper end rod body (51), a lower end rod body (52) and a plurality of middle rod bodies (53) positioned between the upper end rod body (51) and the lower end rod body (52), wherein the middle rod bodies (53) are detachably connected with each other, and the middle rod bodies (53) are detachably connected with the upper end rod body (51) and the lower end rod body (52); the upper end of the mast (2) is provided with a sliding positioner (8) which is in sliding contact with the mast (2) along the length direction of the mast (2), and the sliding positioner (8) is rotatably connected with an upper end rod body (51) around the axis of the upper end rod body (51); the rotary drilling rig further comprises a lifting driving device (9) for driving the sliding positioner (8) to slide along the length direction of the mast (2).

2. The casing pipe rotary excavating device according to claim 1, characterized in that: the middle rod body (53) comprises a main rod body (531) and a rectangular positioning block (532) fixed at one end of the main rod body (531); one end of the main rod body (531), which is far away from the rectangular positioning block (532) at the end part of the main rod body, is provided with a rectangular positioning groove (533) which is used for being spliced with the rectangular positioning block (532); the rectangular positioning block (532) is provided with a mounting hole (534), and two side walls of the rectangular positioning groove (533) are provided with connecting holes (535) which are axially aligned with the mounting hole (534); the adjacent middle rod bodies (53) are bolted and fixed through the mounting holes (534) and the connecting holes (535).

3. The casing pipe rotary excavating device according to claim 1, characterized in that: the sliding positioner (8) comprises a disc-shaped main body (81) and two limiting arms (82) which are respectively positioned at two sides of the disc-shaped main body (81), wherein the two limiting arms (82) are respectively positioned at two sides of the mast (2).

4. The casing pipe rotary excavating device according to claim 3, characterized in that: one side of the limiting arm (82) close to the mast (2) is provided with a limiting wheel (83) rotatably connected with the limiting arm (82), the surfaces of two sides of the mast (2) are respectively provided with a limiting groove (21) along the length direction of the mast (2), and the limiting wheel (83) is arranged in the limiting groove (21).

5. The casing pipe rotary excavating device according to claim 1, characterized in that: the lifting driving device (9) comprises a connecting rope (91) and a winch (92) for winding and unwinding the connecting rope (91); one end of the connecting rope (91) is connected with the sliding positioner (8); a plurality of positioning sleeves (22) used for restraining the connecting ropes (91) are fixed on the mast (2); the connecting rope (91) axially penetrates through the positioning sleeve (22).

6. The casing pipe rotary excavating device according to claim 1, characterized in that: the chassis of the pipe twisting machine is fixedly connected with the base (1), and when the mast (2) is in a vertical state, the drill rod (5) and the positioning hole in the chassis are coaxially arranged.

7. The casing pipe rotary excavating equipment according to any one of claims 1 to 6, characterized in that: and a crawler belt walking device (4) is arranged at the bottom of the machine base (1).