CN205422528U - A diving drill machine that is used for just row's of circulation sediment - Google Patents

Abstract

The utility model discloses a diving drill machine that is used for just row's of circulation sediment, including square drilling rod, be equipped with lateral restraint on the ground between square drilling rod and the pile foundation equipment, the bottom of square drilling rod is equipped with the speed change mechanism by motor drive, and speed change mechanism's bottom is connected with the drill bit pole, and the upper portion of drill bit pole is equipped with tapered drill bit, and the bottom of drill bit pole is equipped with the drill bit, drill bit pole bottom is 0.6~3.0m or for 1~3 times of left and right sides of tapered diameter of bit to the length of tapered drill bit bottom, rig side is equipped with the input port, all is equipped with the axial pipeline of intercommunication in the junction of self -load mouth to drill bit pole and the drill bit pole, drill bit pole lateral surface is equipped with the slag runner. Tapered drill bit is walked around next time at upper and lower two lateral restraint and is moved and the downhole, has guaranteed the straightness that hangs down of pore -forming. The drill bit constantly stirs into the accessible air current with native churn drill under air current, water / mud circulatory flow effect and water / mud circulatory flow carries out the boring mud in drill way, finally bores into the vertical round hole that the given size and the straightness that hangs down meet the requirements.

Description

Diving drill machine for direct circulation deslagging

Technical field

This utility model relates to a kind of diving drill machine, particularly relates to a kind of direct circulation diving drill machine.

Background technology

Diving drill machine is a kind of rotary drill, and its waterproof machine gear and drill bit are sealed, pile frame and drilling rod can dive in water, mud after positioning and hole.By direct circulation or reacting cycle method for discharging residue, cutting grogs, rock ballast in hole are drained into outside hole after injecting mud.Diving drill machine pore-forming deslagging has direct circulation deslagging and pump to lift reacting cycle deslagging two ways, wherein, direct circulation deslagging is in boring procedure, after broken body refuse is cut into pulpous state by the drill bit rotated, utilize slush pump force feed high-pressure slurry, be sent to strength ejection bottom drill bit through drill central pipe, bifurcated pipe, mix with the broken body refuse cutting into pulpous state, carry earth to move upward along hole wall, discharge from the spout hole of casing.

At present, direct circulation diving drill machine drill bit typically uses tapered drill bit, drill bit and drill bit framework to be tapered.Boring mud is removed and is used mud direct circulation mode, and it is slow that this mud direct circulation mode exists deslagging speed, causes speed of fulfiling hole the slowest, owing to drill bit does not lengthen, therefore, in tapered drill bit drilling process, it is susceptible to deflection, thus it is bad to cause into hole perpendicularity, eventually have influence on construction quality.

Utility model content

For above-mentioned prior art, this utility model provides a kind of diving drill machine for direct circulation deslagging, can be drilled to given size and the satisfactory vertical circular hole of perpendicularity.

In order to solve above-mentioned technical problem, this utility model for a basic technical scheme of the diving drill machine of direct circulation deslagging is, this diving drill machine square kelly, lateral confinement on the ground it is provided with between described square kelly and pile foundation equipment, the bottom of described square kelly is provided with by motor-driven gear, the bottom of described gear connects has drill bit shaft, the top of described drill bit shaft to be provided with tapered drill bit, and the bottom of described drill bit shaft is provided with drill bit；The side of described rig is provided with a gas-liquid input port, is provided with the first pipeline from described gas-liquid input port to the junction of described drill bit shaft, be provided with in described drill bit shaft axially through second pipe, described first pipeline connects with second pipe；The lateral surface of described drill bit shaft is provided with ash pit；Described drill bit shaft bottom to described tapered drill bit bottom a length of 0.6～3.0m or 1～3 times of described tapered bit diameter.

This utility model is on the basis of above-mentioned basic technical scheme for the another kind of technical scheme of the diving drill machine of direct circulation deslagging, change specializing in gas-liquid input port therein the blowing mouth of air inlet into, simultaneously, liquid-transport pipe-line it is provided with by rig, the top of described liquid-transport pipe-line is inlet, the top of the described tapered drill bit of the top-down sensing of liquid outlet of described liquid-transport pipe-line.

Compared with prior art, the beneficial effects of the utility model are:

This utility model is for the diving drill machine of direct circulation deslagging, by arranging lateral confinement and lengthening drill bit bar between square kelly on the ground and pile machine equipment, make under the synergy of the vertical aperture that tapered drill bit dug by underground, walk around dynamic next time in upper and lower two lateral confinement and be drilled down into, thus ensureing the perpendicularity of pore-forming.Soil (stone) is constantly bored under air-flow, water/mud recycle stream effect and stirs into the boring mud that can be carried out aperture by air-flow and water/mud recycle stream by drill bit, is finally drilled to given size and the satisfactory vertical circular hole of perpendicularity.

Accompanying drawing explanation

Fig. 1 is the brill drill configuration schematic diagram that this utility model embodiment 1 realizes gas and water/mud unification technique；

Fig. 2 is that this utility model embodiment 2 realizes gas and water/mud and divides the drill configuration schematic diagram for technique.

In figure: 1-square kelly, 2-lateral confinement, 3-motor on the ground, 4-gear, 5-second pipe, the tapered drill bit of 6-, 7-ash pit, 8-gas-liquid flows to, 9-drill bit, 10-mixture, 10 '-air-flow, 11-drill bit shaft, 12-liquid-transport pipe-line, 13-inlet, 14-the first pipeline, 15-gas-liquid input port, 15 '-blowing mouth, 16-aperture.

Detailed description of the invention

Being described in further detail technical solutions of the utility model with specific embodiment below in conjunction with the accompanying drawings, this utility model is only explained by described specific embodiment, not in order to limit this utility model.

Embodiment 1: as shown in Figure 1, a kind of diving drill machine for direct circulation deslagging of this utility model, including square kelly 1, lateral confinement 2 on the ground it is provided with between described square kelly 1 and pile foundation equipment, the bottom of described square kelly 1 is provided with the gear 4 driven by motor 3, the bottom of described gear 4 connects has drill bit shaft 11, the top of described drill bit shaft 11 to be provided with tapered drill bit 6, and the bottom of described drill bit shaft 11 is provided with drill bit 9；Described drill bit shaft 11 bottom to described tapered drill bit 6 bottom a length of 0.6～3.0m or 1～3 times of described tapered drill bit 6 diameter；The side of described rig is provided with a gas-liquid input port 15, and from described gas-liquid input port 15, the junction to described drill bit shaft 11 is provided with the first pipeline 14, be provided with in described drill bit shaft 11 axially through second pipe 5, described first pipeline 14 connects with second pipe 5；The lateral surface of described drill bit shaft 11 is provided with ash pit 7.

Embodiment 1 can realize solution-air (water/mud) unification technological process:

The drill bit 9 of rig is directed at the position needing boring, adjust the perpendicularity of drill bit shaft 11, gear 4 under the driving of motor 3 with 45～120 revs/min of rotational speed and drive drill bit 9, air-flow is first inputted by an air pump and by being arranged on the gas-liquid input port 15 of rig side, stream pressure 0.5～5MPa, it is as the criterion with soil/slurry slurry pressure in overcoming hole, drill bit 9 rotates and breaks ground, the air-flow of input is discharged from drill bit 9 and is carried drill bit 9 along drill bit shaft 11 and ash pit thereon 7 and bore and stir the boring mud of formation and move upward, open slush pump (generally 3PN, 4PN), flow 50～200m³null(selection of above-mentioned pressure and flow belongs to the common knowledge of the art to/h，Do not repeat them here)，When drill bit 9 buries，By this slush pump, the mud in mud pit is poured into gas-liquid input port 15，Mud inputs mud by gas-liquid input port 15 tailing edge the first pipeline 14 and the second pipe 5 drill bit 9 bottom drill bit shaft 11，If be provided with reflux valve on airflow line，The most above-mentioned input air-flow and mud pour into, and do not have sequence requirement，The mud poured into is discharged from drill bit 9 and is moved upward along drill bit shaft 11 and ash pit thereon 7 and self-drilling aperture 16 is returned out，Enter back into mud pit，Mud pit mud in suspension at the middle and upper levels is inputted from gas-liquid input port 15 by slush pump and until drill bit 9 again，In mud cyclic process, boring mud is carried and portals，Meanwhile，Flow in described first pipeline 14 and second pipe 5 mixture 10 of mud and air-flow，The gas-liquid discharged from drill bit 9 and formed upwards along drill bit shaft 11 and ash pit thereon 7 flows to 8，Boring mud is carried out aperture 16，Until completing boring，Slush pump and air pump is closed after completing boring.In tapping process, air-flow plays broken boring mud, assists the effect of mud upwards deslagging.The boring mud formed at drill bit 9 upwards drains at tapered drill bit 6 under air-flow and water/mud blow row's effect along drill bit shaft 11 and ash pit thereon 7, then is carried under circulating mud and airflow function with the boring mud under the drilling of tapered drill bit 6 and portal.This utility model rig utilizes drill bit 9 first to dig a diameter vertical aperture suitable with drill bit shaft 11 by increasing the drill bit 9 of drill bit shaft in drilling process, less because increasing the aperture of drill bit 9 cutting of drill bit shaft, it is the least with soil layer frictional resistance, creeps into perpendicularity on the ground and easily keep under the lifting of lifting means.Also have, lateral confinement 2 on the ground is there are on ground square kelly 1 and pile machine equipment, tapered drill bit 6 is subject to lateral confinement 2 on the ground by square kelly 1, tapered drill bit 6 is underground lateral confinement further through the vertical keyhole formation dug by its bottom drill bit 9 of drill bit shaft 11 lengthened, tapered drill bit 6 rotates under the synergy of upper and lower two lateral confinement and is drilled down into, thus ensure that the perpendicularity of pore-forming.Soil (stone) is constantly bored under air-flow, water/mud recycle stream effect and stirs into the boring mud that can be carried out aperture 16 by air-flow and water/mud recycle stream by tapered drill bit 6 and drill bit 9, is finally drilled to given size and the satisfactory vertical circular hole of perpendicularity.

Embodiment 2: as shown in Figure 2, embodiment 2 is on the basis of above-described embodiment 1, change specializing in gas-liquid input port 15 therein the blowing mouth 15 ' of air inlet into, simultaneously, liquid-transport pipe-line 12 it is provided with by described rig, the top of described liquid-transport pipe-line 12 is inlet 13, the top of the described tapered drill bit 6 of the top-down sensing of liquid outlet of described liquid-transport pipe-line 12.

Embodiment 2 can realize solution-air (water/mud) point for technological process, with being different only in that of above-mentioned gas and water/mud unification technological process: open air pump and input air-flow to blowing mouth 15 ', stream pressure can be 0.5～5MPa, it is as the criterion with soil/slurry slurry pressure in overcoming hole, drill bit 9 rotates after breaking ground opens slush pump (generally 3PN, 4PN), flow 50～200m³/h；During the piercing of drill bit 9, when drill bit shaft 11 is fully embedded in soil, having this slush pump to be poured into the inlet 13 at the top of liquid-transport pipe-line 12 by the mud in mud pit, mud inputs in the hole formed by tapered drill bit 6, flow at the bottom of drill bit 9 hole along drill bit shaft 11 and ash pit thereon 7；During drill bit 9 pierces, the air-flow inputted by blowing mouth 15 ' is along the first pipeline 14 and second pipe 5 until discharging from drill bit 9, and form gas-liquid mixture with the mud being delivered to drill bit 9 by the inlet 13 of liquid-transport pipe-line 12, the gas-liquid formed upwards along the ash pit 7 in drill bit shaft 11 under pressure flows to 8, carry drill bit 9 and tapered drill bit 6 bores the boring mud stirred and returns out entrance mud pit from aperture 16, mud pit mud in suspension at the middle and upper levels is inputted liquid-transport pipe-line 12 by slush pump again until at the bottom of hole, realize the circulation of mud, in mud cyclic process, boring mud is carried and portals, in the process, air-flow plays broken boring mud, assist the effect of mud upwards deslagging, slush pump and air pump is closed after completing boring.

Although embodiment 2 and embodiment 1 belong to the concrete structure of this utility model diving drill machine, but the solution-air (water/mud) achieved by embodiment 2 point is for technological process, facilitates the offer of gas/liquid, has more preferably operation and practicality.

Although this utility model being described above in conjunction with figure; but this utility model is not limited to above-mentioned detailed description of the invention; above-mentioned detailed description of the invention is only schematically; rather than it is restrictive; those of ordinary skill in the art is under enlightenment of the present utility model; in the case of without departing from this utility model objective, it is also possible to make many variations, within these belong to protection of the present utility model.

Claims (2)

1. the diving drill machine for direct circulation deslagging, including square kelly (1), lateral confinement (2) on the ground it is provided with between described square kelly (1) and pile foundation equipment, the bottom of described square kelly (1) is provided with the gear (4) driven by motor (3), the bottom of described gear (4) connects drill bit shaft (11), the top of described drill bit shaft (11) is provided with tapered drill bit (6), and the bottom of described drill bit shaft (11) is provided with drill bit (9)；The side of described rig is provided with a gas-liquid input port (15), it is provided with the first pipeline (14) from the junction of described gas-liquid input port (15) to described drill bit shaft (11), be provided with in described drill bit shaft (11) axially through second pipe (5), described first pipeline (14) connects with second pipe (5)；The lateral surface of described drill bit shaft (11) is provided with ash pit (7)；It is characterized in that:

Described drill bit shaft (11) bottom to described tapered drill bit (6) bottom a length of 0.6～3.0m or 1～3 times of described tapered drill bit (6) diameter.

2. the diving drill machine for direct circulation deslagging, including square kelly (1), lateral confinement (2) on the ground it is provided with between described square kelly (1) and pile foundation equipment, the bottom of described square kelly (1) is provided with the gear (4) driven by motor (3), the bottom of described gear (4) connects drill bit shaft (11), the top of described drill bit shaft (11) is provided with tapered drill bit (6), and the bottom of described drill bit shaft (11) is provided with drill bit (9)；The side of described rig is provided with a blowing mouth (15 '), it is provided with the first pipeline (14) from the junction of described blowing mouth (15 ') to described drill bit shaft (11), be provided with in described drill bit shaft (11) axially through second pipe (5), described first pipeline (14) connects with second pipe (5)；The lateral surface of described drill bit shaft (11) is provided with ash pit (7)；It is characterized in that:

Liquid-transport pipe-line (12) it is provided with by rig, the top of described liquid-transport pipe-line (12) is inlet (13), the top of the described tapered drill bit of the top-down sensing of liquid outlet (6) of described liquid-transport pipe-line (12)；

Described drill bit shaft (11) bottom to described tapered drill bit (6) bottom a length of 0.6～3.0m or 1～3 times of described tapered drill bit (6) diameter.