CN110130829B - Powerful pore-forming pile-forming integrated drilling machine suitable for hole bottom impact rotary spraying construction method - Google Patents
Powerful pore-forming pile-forming integrated drilling machine suitable for hole bottom impact rotary spraying construction method Download PDFInfo
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- CN110130829B CN110130829B CN201910531904.XA CN201910531904A CN110130829B CN 110130829 B CN110130829 B CN 110130829B CN 201910531904 A CN201910531904 A CN 201910531904A CN 110130829 B CN110130829 B CN 110130829B
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- air passage
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- connecting shaft
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- 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
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
- E02D5/46—Concrete or concrete-like piles cast in position ; Apparatus for making same making in situ by forcing bonding agents into gravel fillings or the soil
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B15/00—Supports for the drilling machine, e.g. derricks or masts
- E21B15/04—Supports for the drilling machine, e.g. derricks or masts specially adapted for directional drilling, e.g. slant hole rigs
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B4/00—Drives for drilling, used in the borehole
- E21B4/06—Down-hole impacting means, e.g. hammers
- E21B4/14—Fluid operated hammers
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B4/00—Drives for drilling, used in the borehole
- E21B4/20—Drives for drilling, used in the borehole combined with surface drive
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/02—Drilling rigs characterised by means for land transport with their own drive, e.g. skid mounting or wheel mounting
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Paleontology (AREA)
- Earth Drilling (AREA)
Abstract
The invention relates to a powerful hole forming and pile forming integrated drilling machine suitable for a hole bottom impact rotary spraying construction method, which comprises a crawler chassis, wherein a connecting bridge is arranged on the crawler chassis, a turntable is arranged on the connecting bridge, a frame is arranged on the turntable, supporting legs are arranged on two sides of the frame, a carriage is arranged on the frame, a propelling frame is arranged on the carriage, a power head is arranged on the propelling frame in a moving manner, and a damping core tube is arranged in the power head. The damping core tube is provided with a three-way structure which is respectively a high-flow compressed air channel for driving a down-the-hole impactor when drilling and penetrating through a complex stratum strongly, and the other two groups of channels are respectively a low-flow compressed air channel and a central high-pressure slurry channel for forming air-pocket slurry high-pressure jet flow when jet-grouting lifting operation, so that the stratum is cut and finally jet-grouting piles are formed. The large torque and the large propelling force of the drilling machine provide the capability of powerful drilling, the triple core pipe structure of the drilling machine realizes the requirement of rotary spraying operation without changing drilling tools, and finally the integrated function of powerful pore-forming and pile-forming is realized.
Description
Technical Field
The invention belongs to the technical field of rock-soil construction mechanical equipment, and relates to a powerful pore-forming pile-forming integrated drilling machine suitable for a pore bottom impact rotary spraying construction method.
Background
Along with the further definition of the requirements of ecological environment protection and groundwater protection, the disturbance influence of rock-soil construction on the overground and underground environment must be strictly controlled, and the adaptability of the construction technology and equipment to the environment protection should be synchronously ensured by the corresponding technical upgrading of the traditional construction technology and equipment. At present, most of rotary jet drilling machine power heads have small torque and small lifting force, can not meet the hole guiding requirement before rotary jet construction, often need to additionally arrange a high-power hole guiding machine for drilling holes in advance, lead to repeated construction of the same station, have low working efficiency, can cause secondary damage to the environment of a construction site, and lead to blind drainage and loss of groundwater due to precipitation technological measures in the construction process, so that other geological hidden hazards are further caused.
The traditional hole guiding drilling machine or rotary spraying drilling machine has the defects that a gear system lacks lubrication when a power head works under high load, real-time monitoring on the rotating speed of the drilling machine is lacking, the power of a propulsion frame is weak, the requirement of strong propulsion cannot be met, and the moving speed cannot be monitored in real time.
Disclosure of Invention
The invention aims to provide a powerful pore-forming pile-forming integrated drilling machine suitable for a hole bottom impact jet grouting method, which can solve the problem that drilling and jet grouting construction in complex stratum are completed at one time through the self powerful performance and a specially designed power head core pipe structure, wherein a drilling machine power head provides enough torque, a drilling machine propulsion frame provides enough lifting propulsion force, and the output torque and the lifting propulsion speed of the drilling machine can be monitored in real time.
According to the technical scheme provided by the invention: the utility model provides a powerful pore-forming stake integrative rig suitable for hole bottom is strikeed soon and is spouted construction method, includes the caterpillar base plate, set up the connecting bridge on the caterpillar base plate, set up the carousel on the connecting bridge, install the frame on the carousel, frame both sides installation landing leg, install the balladeur train on the frame, set up on the balladeur train and advance the frame, advance to move on the frame and set up the unit head, install the shock-absorbing core pipe in the unit head, the drilling tool is installed to shock-absorbing core pipe one end, the shunt is installed to the shock-absorbing core pipe other end, advance the frame bottom and set up the holder.
As a further improvement of the invention, the propelling frame comprises a propelling frame body, wherein one end of the propelling frame body is provided with a top driving wheel assembly, and the other end of the propelling frame body is provided with a bottom tensioning roller assembly.
The top drive wheel assembly is connected with the bottom tensioning roller assembly through a roller chain.
The bottom tensioning roller assembly comprises a pressing ring, the pressing ring is fixedly arranged in the pushing frame body, one side of the pressing ring is connected with a butter cylinder body, a butter duct is formed in the butter cylinder body, one end of the butter duct is communicated with a piston pipeline, the other end of the butter duct is communicated with an oiling one-way valve, a piston rod is arranged in the piston pipeline in a sliding mode, one end of the piston rod is connected with the tensioning frame body, a driven sprocket is arranged in the tensioning frame body in a rotating mode, a sliding block is arranged on the periphery of the tensioning frame body, and the sliding block is arranged in the pushing frame body in a sliding mode. As a further improvement of the invention, one side of the butter cylinder body is provided with a baffle ring, and a buffer spring is arranged between the baffle ring and the compression ring.
As a further improvement of the invention, the top driving wheel assembly comprises a driving wheel bracket, the driving wheel bracket is fixedly arranged in the propulsion frame body, a driving chain wheel is rotatably arranged in the driving wheel bracket, and two ends of the driving chain wheel are connected with a driving motor through a speed reducer.
As a further improvement of the invention, a speed measuring follower wheel assembly is arranged between the top driving wheel assembly and the bottom tensioning roller assembly; the speed measuring follow-up wheel set comprises a speed measuring follow-up sprocket, and an encoder is arranged on one side of the speed measuring follow-up sprocket.
As a further improvement of the invention, the power head comprises a power head box body, a large gear shaft is rotatably arranged in the middle of the power head box body, a large gear is arranged on the periphery of the middle of the large gear shaft, a motor connecting shaft is arranged on the periphery of the large gear shaft, a small gear is arranged on the periphery of the middle of the motor connecting shaft, the small gear is meshed with the large gear, a driving motor is arranged on the end face of the power head box body, and the driving motor is connected with the motor connecting shaft.
As a further improvement of the present invention, the motor connecting shaft includes a first motor connecting shaft, an encoder connecting shaft is disposed below the first motor connecting shaft, and an encoder is disposed below the encoder connecting shaft; a lubrication assembly is arranged on the power head box body; the motor connecting shaft comprises a second motor connecting shaft; the lubrication assembly comprises a gear pump connecting shaft, the gear pump connecting shaft is arranged below the second motor connecting shaft, the lubrication gear pump is connected below the gear pump connecting shaft, the input end of the lubrication gear pump is connected with an oil outlet, the oil outlet is positioned at the lower part of the power head box body, the output end of the lubrication gear pump is connected with an oil inlet, and the oil inlet is positioned at the upper part of the power head box body.
As a further improvement of the invention, the shock-absorbing core tube comprises a high-pressure core tube upper joint, wherein an upper high-pressure channel is arranged in the high-pressure core tube upper joint, the lower end of the high-pressure core tube upper joint is connected with the upper end of the high-pressure core tube in a sealing way through a sealing ring, a middle high-pressure channel is arranged in the high-pressure core tube, the lower end of the high-pressure core tube is connected with a high-pressure core tube lower joint in a sealing way, a lower high-pressure channel is arranged in the high-pressure core tube lower joint, the upper end of the high-pressure core tube is communicated with the high-pressure core tube upper joint, and the lower end of the high-pressure core tube is communicated with the high-pressure core tube lower joint to form a high-pressure central channel;
The outer side of the high-pressure core pipe upper joint is provided with an inner air passage upper joint, the lower end of the inner air passage upper joint is connected with the upper end of the inner air passage core pipe through threads, the lower end of the inner air passage core pipe is connected with the inner air passage lower joint through threads, the high-pressure core pipe upper joint is provided with an upper circumferential uniform air passage, the high-pressure core pipe is provided with a middle circumferential uniform air passage, the lower joint of the high-pressure core pipe is provided with a lower circumferential uniform air passage, the upper end of the middle circumferential uniform air passage is communicated with the upper circumferential uniform air passage, and the lower end of the middle circumferential uniform air passage is communicated with the lower circumferential uniform air passage to form an inner air passage;
The outer side of the upper joint of the inner air passage is provided with an upper joint of the outer air passage, the lower end of the upper joint of the outer air passage is connected with the upper end of a supporting sleeve through a sealing ring, the lower end of the supporting sleeve is connected with a lower joint of the outer air passage through a sealing ring, the supporting sleeve is positioned at the periphery of the core pipe of the inner air passage, the lower joint of the outer air passage is positioned at the periphery of the lower joint of the inner air passage, the upper joint of the inner air passage is provided with an outer circumferentially uniform air passage, an outer air passage is arranged between the supporting sleeve and the core pipe of the inner air passage, the lower joint of the inner air passage is provided with an outer circumferentially uniform air passage, the upper end of the outer air passage is communicated with the outer circumferentially uniform air passage, and the lower end of the supporting sleeve is communicated with the outer circumferentially uniform air passage to form an outer air passage;
the outer air flue upper joint outside sets up the mount pad, set up threaded connection portion in the mount pad, the outer air flue lower joint outside sets up down the mount pad, set up threaded connection portion down in the mount pad.
As a further improvement of the invention, an upper pressing plate is arranged at the upper end of the upper mounting seat, and an upper damping rubber pad is arranged between the upper mounting seat and the upper pressing plate.
As a further improvement of the invention, a lower pressing plate is arranged at the lower end of the lower mounting seat, and a lower damping rubber pad is arranged between the lower mounting seat and the lower pressing plate.
Compared with the prior art, the invention has the following advantages:
The power of the propulsion frame is provided by the double-motor speed reducer from the top to drive the multiple rows of chain wheels to drag the chain, and finally drag the carriage device and the power head arranged on the carriage device to provide equal traction force up and down; the power of the power head comes from 4 groups of hydraulic motors to drive the pinion, further drive the central large gear to drive the core tube to rotate, and the power head is provided with an automatic lubrication mechanism, so that the working condition of a gear system under high load is improved; simultaneously, a rotating speed encoder is synchronously arranged at the end part of the other pinion, and a rotating speed signal is output to a host operating panel; the damping core pipe is provided with a three-channel structure which is respectively a high-flow compressed air channel for driving the down-the-hole impactor during drilling and penetrating through complex stratum strongly, and the other 2 groups of channels are respectively a low-flow compressed air channel and a central high-pressure slurry channel for forming air-package slurry high-pressure jet flow during jet grouting lifting operation, and cutting stratum to form piles by jet grouting finally. The large torque and the large propelling force of the drilling machine provide the capability of powerful drilling, the triple core pipe structure of the drilling machine realizes the requirement of rotary spraying operation without changing drilling tools, and finally the integrated function of powerful pore-forming and pile-forming is realized.
Drawings
Fig.1 is a schematic structural view of the present invention.
Fig. 2 is a schematic structural view of the propulsion frame of the present invention.
Fig. 3 is a schematic top view of fig. 2.
FIG. 4 is a schematic view of the top drive wheel assembly of the present invention.
Fig. 5 is a schematic structural view of the bottom tension roller assembly of the present invention.
Fig. 6 is a schematic structural view of the speed measuring guide wheel set of the present invention.
Fig. 7 is a schematic structural diagram of a power head according to the present invention.
Fig. 8 is a schematic top view of fig. 7.
Fig. 9 is a schematic structural view of the shock absorber core tube of the present invention.
Detailed Description
The following describes the embodiments of the present invention further with reference to the drawings.
In the context of figure 1 of the drawings, comprises a crawler chassis 1, a connecting bridge 2, a turntable 3, a carriage 4, a pushing frame 5, a pushing frame body 5-1, a driving wheel bracket 5-2, a driving sprocket 5-3, a driving motor 5-4, a compression ring 5-5, a butter cylinder 5-6, a baffle ring 5-6-1, a butter duct 5-6-2, a piston pipeline 5-6-3, a piston rod 5-7, a roller chain 5-8, a tensioning frame body 5-9, a driven sprocket 5-10, a sliding block 5-11, a buffer spring 5-12, a speed measuring follow-up sprocket 5-13, an encoder 5-14, an oiling one-way valve 5-15, a power head 6, a power head box 6-1, a large gear shaft 6-2, a large gear 6-3, a motor connecting shaft 6-4, a pinion 6-5 the power head driving motor 6-6, the encoder connecting shaft 6-7, the power head encoder 6-8, the gear pump connecting shaft 6-9, the lubrication gear pump 6-10, the oil outlet 6-11, the oil inlet 6-12, the oil level observation window 6-13, the shock-absorbing core tube 7, the high-pressure core tube upper joint 7-1, the high-pressure core tube 7-2, the high-pressure core tube lower joint 7-3, the inner air passage upper joint 7-4, the inner air passage core tube 7-5, the inner air passage lower joint 7-6, the upper circumferential uniform air passage 7-7, the middle circumferential uniform air passage 7-8, the lower circumferential uniform air passage 7-9, the outer air passage upper joint 7-10, the supporting sleeve 7-11, the outer air passage lower joint 7-12, the outer circumferential uniform air passage 7-13, the device comprises a middle outer air passage 7-14, an outer lower peripheral uniformly distributed air passage 7-15, an upper mounting seat 7-16, a lower mounting seat 7-17, an upper pressing plate 7-18, an upper damping rubber pad 7-19, a lower pressing plate 7-20, a lower damping rubber pad 7-21, a frame 8, supporting legs 9, a clamp holder 10 and the like.
As shown in fig. 1, the invention relates to a powerful hole forming and pile forming integrated drilling machine suitable for a hole bottom impact rotary spraying construction method, which comprises a crawler chassis 1, wherein a connecting bridge 2 is arranged on the crawler chassis 1, a rotary table 3 is arranged on the connecting bridge 2, a frame 8 is arranged on the rotary table 3, supporting legs 9 are arranged on two sides of the frame 8, a sliding frame 4 is arranged on the frame 8, a pushing frame 5 is arranged on the sliding frame 4, a power head 6 is movably arranged on the pushing frame 5, a damping core tube 7 is arranged in the power head 6, a drilling tool is arranged at one end of the damping core tube 7, and a current divider is arranged at the other end of the damping core tube 7. The bottom end of the pushing frame 5 is provided with a clamp holder 10.
As shown in fig. 2, the propulsion frame 5 includes a propulsion frame body 5-1, one end of the propulsion frame body 5-1 is provided with a top driving wheel assembly, and the other end of the propulsion frame body 5-1 is provided with a bottom tensioning roller assembly. The top drive wheel assembly is connected to the bottom tensioning roller assembly by roller chains 5-8.
As shown in FIG. 4, the top driving wheel assembly comprises a driving wheel bracket 5-2, the driving wheel bracket 5-2 is fixedly arranged in the propulsion frame body 5-1, a driving chain wheel 5-3 is rotatably arranged in the driving wheel bracket 5-2 through a bearing, and two ends of the driving chain wheel 5-3 are connected with a driving motor 5-4 through a speed reducer.
As shown in FIG. 5, the bottom tensioning roller assembly comprises a pressing ring 5-5, the pressing ring 5-5 is fixedly arranged in a pushing frame body 5-1, one side of the pressing ring 5-5 is connected with a butter cylinder body 5-6, one side of the butter cylinder body 5-6 is provided with a baffle ring 5-6-1, a butter duct 5-6-2 is formed in the butter cylinder body 5-6, one end of the butter duct 5-6-2 is communicated with a piston pipeline 5-6-3, the other end of the butter duct 5-6-2 is communicated with an oiling one-way valve 5-15, a piston rod 5-7 is slidably arranged in the piston pipeline 5-6-3, one end of the piston rod 5-7 is connected with a tensioning frame body 5-9, a driven sprocket 5-10 is rotatably arranged in the tensioning frame body 5-9 through a bearing, a sliding block 5-11 is arranged on the periphery of the tensioning frame body 5-9, and the sliding block 5-11 is slidably arranged in the pushing frame body 5-1.
In order to buffer the impact of the driven sprocket 5-10, a buffer spring 5-12 is provided between the retainer ring 5-6-1 and the pressing ring 5-5.
In order to monitor the moving speed of the roller chains 5-8 in the propulsion frame in real time, a speed measuring follower wheel assembly is arranged between the top driving wheel assembly and the bottom tensioning roller wheel assembly.
As shown in FIG. 6, the speed measuring follow-up wheel set comprises a speed measuring follow-up sprocket 5-13, and an encoder 5-14 is arranged on one side of the speed measuring follow-up sprocket 5-13.
As shown in fig. 7-8, the power head 6 includes a power head box 6-1, a large gear shaft 6-2 is rotatably disposed in the middle of the power head box 6-1 through a bearing, a large gear 6-3 is disposed on the periphery of the middle of the large gear shaft 6-2, a plurality of motor connecting shafts 6-4 are disposed around the large gear shaft 6-2, and in this embodiment, the number of motor connecting shafts 6-4 is 4 and is uniformly distributed around the large gear shaft 6-2. The middle periphery of the motor connecting shaft 6-4 is provided with a pinion 6-5, and the pinion 6-5 is meshed with the large gear 6-3. The end face of the power head box body 6-1 is provided with a power head driving motor 6-6, and the power head driving motor 6-6 is connected with a motor connecting shaft 6-4.
The motor connecting shaft 6-4 includes a first motor connecting shaft and a second motor connecting shaft.
An encoder connecting shaft 6-7 is arranged below the first motor connecting shaft, and a power head encoder 6-8 is arranged below the encoder connecting shaft 6-7. The power head encoder 6-8 outputs a rotational speed signal to the host operating panel.
In order to improve the working condition of the gear system under high load, a lubrication assembly is arranged on the power head box body 6-1, the lubrication assembly comprises a gear pump connecting shaft 6-9, the gear pump connecting shaft 6-9 is arranged below a second motor connecting shaft, a lubrication gear pump 6-10 is arranged below the gear pump connecting shaft 6-9, an input end of the lubrication gear pump 6-10 is connected with an oil outlet 6-11, the oil outlet 6-11 is positioned at the lower part of the power head box body 6-1, an output end of the lubrication gear pump 6-10 is connected with an oil inlet 6-12, the oil inlet 6-12 is positioned at the upper part of the power head box body 6-1, and one side of the motor connecting shaft 6-4.
In order to facilitate the level of lubricating oil in the power head box 6-1, an oil level observation window 6-13 is provided on the power head box 6-1.
As shown in fig. 9, the shock-absorbing core tube 7 comprises a high-pressure core tube upper joint 7-1, an upper high-pressure channel is arranged in the high-pressure core tube upper joint 7-1, the lower end of the high-pressure core tube upper joint 7-1 is connected with the upper end of the high-pressure core tube 7-2 in a sealing way, a middle high-pressure channel is arranged in the high-pressure core tube 7-2, the lower end of the high-pressure core tube 7-2 is connected with a high-pressure core tube lower joint 7-3 in a sealing way, a lower high-pressure channel is arranged in the high-pressure core tube lower joint 7-3, the upper end of the high-pressure core tube 7-2 is communicated with the high-pressure core tube upper joint 7-1, and the lower end of the high-pressure core tube lower joint 7-3 is communicated with the high-pressure core tube lower joint to form a high-pressure center channel.
The outer side of the high-pressure core pipe upper joint 7-1 is provided with an inner air passage upper joint 7-4, the lower end of the inner air passage upper joint 7-4 is connected with the upper end of the inner air passage core pipe 7-5 through threads, the lower end of the inner air passage core pipe 7-5 is connected with the inner air passage lower joint 7-6 through threads, the high-pressure core pipe upper joint 7-1 is provided with an upper circumferential uniform air passage 7-7, the high-pressure core pipe 7-2 is provided with a middle circumferential uniform air passage 7-8, the high-pressure core pipe lower joint 7-3 is provided with a lower circumferential uniform air passage 7-9, the upper end of the middle circumferential uniform air passage 7-8 is communicated with the upper circumferential uniform air passage 7-7, and the lower end of the middle circumferential uniform air passage 7-9 is communicated with the lower circumferential uniform air passage 7-9 to form an inner air passage channel.
The outer side of the inner air passage upper joint 7-4 is provided with an outer air passage upper joint 7-10, the lower end of the outer air passage upper joint 7-10 is connected with the upper end of a supporting sleeve 7-11 through a sealing ring, the lower end of the supporting sleeve 7-11 is connected with an outer air passage lower joint 7-12 through a sealing ring, the supporting sleeve 7-11 is positioned at the periphery of an inner air passage core tube 7-5, the outer air passage lower joint 7-12 is positioned at the periphery of an inner air passage lower joint 7-6, the inner air passage upper joint 7-4 is provided with an outer upper circumferential uniform distribution air passage 7-13, an outer air passage 7-14 is arranged between the supporting sleeve 7-11 and the inner air passage core tube 7-5, the inner air passage lower joint 7-6 is provided with an outer lower circumferential uniform distribution air passage 7-15, the upper end of the outer air passage 7-14 is communicated with the outer circumferential uniform distribution air passage 7-13, and the lower end of the outer air passage is communicated with the outer circumferential uniform distribution air passage 7-15 to form an outer air passage channel.
An upper mounting seat 7-16 is arranged on the outer side of the upper joint 7-10 of the outer air passage, and a circumferential mounting hole is arranged in the upper mounting seat 7-16 and is used for connecting the upper end of a gear shaft in the power head. The outer side of the outer air passage lower joint 7-12 is provided with a lower mounting seat 7-17, and a circumferential mounting hole is arranged in the lower mounting seat 7-17 and is used for connecting the lower end of a gear shaft in the power head.
The upper end of the upper mounting seat 7-16 is provided with a circumferential mounting screw hole for mounting the upper pressing plate 7-18, and an upper damping rubber pad 7-19 is arranged between the upper mounting seat 7-16 and the upper pressing plate 7-18 for buffering vibration of the drilling tool during working.
The lower mounting seat 7-17 is provided with a circumferential mounting screw hole at the lower end for mounting the lower pressing plate 7-20, and a lower damping rubber pad 7-21 is arranged between the lower mounting seat 7-17 and the lower pressing plate 7-20 for buffering vibration of the drilling tool during working.
The working process of the invention is as follows:
The crawler chassis 1 drives the drilling machine to move to a position where drilling is required, the turntable 3 drives the frame 8 to rotate to a proper angle, the supporting frame 8 is kept stable after the supporting legs 9 descend, the carriage 4 pushes the pushing frame 5 to be vertical, the clamp holder 10 installs the drilling tool to the lower end of the shock-absorbing core tube 7, the drilling tool is driven by the power head to realize rotary motion by the core tube, feeding motion is realized under the pushing of the pushing frame 5, and drilling construction is further realized.
Grease is injected into a grease duct 5-6-2 in a grease cylinder 5-6 from a grease injection one-way valve 5-15, under the sealing effect of the one-way valve, the grease pushes a piston rod 5-7 to push a tensioning wheel frame body 5-9 to the outside, and the roller chain 5-8 is tensioned by a driven sprocket 5-10.
The driving motors 5-4 at the two sides of the top drive the speed reducer to provide driving force, and the driving chain wheel rotates to further drive the roller chains 5-8 to move.
The follow-up chain wheel 5-13 rotates under the drive of the roller chain 5-8, and the encoder 5-14 converts the feedback data of the chain wheel into a linear motion signal of the chain and further transmits the linear motion signal to the host operation interface.
The power head driving motor 6-6 drives the large gear shaft 6-2 to do rotary motion through the motor connecting shaft 6-4 and the gear structure, so that the size is compact, a pushing stroke space is reserved, and the power head is realized in a mode of mounting a thin box body on one side of the motor and having a large transmission ratio; the power head is additionally provided with a forced lubrication pump through a pinion end, so that the working condition of a gear system under high load is improved; meanwhile, a rotating speed encoder is synchronously arranged at the end part of the other pinion, and a rotating speed signal is output to a host operating panel.
The high-pressure core tube channel, the inner air channel and the outer air channel in the shock-absorbing core tube 7 are realized as follows: when the drilling machine drills downwards, the power head 6 drives the drilling tool to forcefully rotate, the pushing frame 5 generates downward thrust, the outer air passage channels input large-flow compressed air to the pneumatic down-hole hammer at the bottom of the hole, the down-hole hammer is driven to perform impact action, stones and the like in the stratum are broken and difficult to drill into the stratum, broken stone residues are blown away from the bottom of the hole, and the upper and lower shock pads of the core tube play roles of absorbing shock and protecting the core tube and the drilling tool at the moment; when the drilling machine lifts the drill upwards to carry out rotary spraying operation, high-pressure cement paste passes through the high-pressure core pipe channel until reaching the nozzle of the drill, secondary pressurization is formed, the high-pressure jet flow type soil body is cut, small flow compressed air in the inner air channel passes through the inner air channel until reaching the outer ring of the slurry nozzle, air pocket negative pressure is formed, the concentration of jet flow at the nozzle is increased, the energy section of the jet flow is prolonged, the soil body cutting stirring effect is enhanced, and the pile forming effect is further enhanced.
Claims (8)
1. A powerful pore-forming pile-forming integrated drilling machine suitable for a hole bottom impact jet grouting construction method is characterized in that: the drilling machine comprises a crawler chassis (1), a connecting bridge (2) is arranged on the crawler chassis (1), a turntable (3) is arranged on the connecting bridge (2), a frame (8) is arranged on the turntable (3), supporting legs (9) are arranged on two sides of the frame (8), a sliding frame (4) is arranged on the frame (8), a pushing frame (5) is arranged on the sliding frame (4), a power head (6) is arranged on the pushing frame (5) in a moving mode, a damping core tube (7) is arranged in the power head (6), a drill rod and a drill bit are arranged at one end of the damping core tube (7), a shunt is arranged at the other end of the damping core tube (7), the damping core tube (7) is provided with a three-channel structure, and a clamp holder (10) is arranged at the bottom end of the pushing frame (5); the pushing frame comprises a pushing frame body (5-1), one end of the pushing frame body (5-1) is provided with a top driving wheel assembly, the other end of the pushing frame body (5-1) is provided with a bottom tensioning roller assembly, the top driving wheel assembly is connected with the bottom tensioning roller assembly through a roller chain (5-8), the bottom tensioning roller assembly comprises a pressing ring (5-5), the pressing ring (5-5) is fixedly arranged in the pushing frame body (5-1), one side of the pressing ring (5-5) is connected with a butter cylinder body (5-6), a butter pore canal (5-6-2) is formed in the butter cylinder body (5-6), one end of the butter pore canal (5-6-2) is communicated with a piston pipeline (5-6-3), the other end of the butter wheel frame (5-6-2) is communicated with an oiling one-way valve (5-15), a piston rod (5-7) is arranged in the piston pipeline (5-6-3) in a sliding mode, one end of the pressing ring (5-7) is connected with a tensioning body (5-9), the tensioning body (5-9) is arranged in the tensioning frame body (5-6) in a sliding mode, the driving chain wheel (5-10) is arranged outside the tensioning sliding block (5-5), the sliding block (5-11) is arranged in the pushing frame body (5-1) in a sliding way; the shock-absorbing core tube (7) comprises a high-pressure core tube upper joint (7-1), an upper high-pressure channel is arranged in the high-pressure core tube upper joint (7-1), the lower end of the high-pressure core tube upper joint (7-1) is connected with the upper end of the high-pressure core tube (7-2) in a sealing way, a middle high-pressure channel is arranged in the high-pressure core tube (7-2), the lower end of the high-pressure core tube (7-2) is connected with a high-pressure core tube lower joint (7-3) in a sealing way, a lower high-pressure channel is arranged in the high-pressure core tube lower joint (7-3), the upper end of the high-pressure core tube (7-2) is communicated with the high-pressure core tube upper joint (7-1), and the lower end of the high-pressure core tube lower joint (7-3) is communicated with the high-pressure core tube lower joint to form a high-pressure center channel;
An inner air passage upper joint (7-4) is arranged on the outer side of the high-pressure core pipe upper joint (7-1), the lower end of the inner air passage upper joint (7-4) is connected with the upper end of the inner air passage core pipe (7-5) through threads, the lower end of the inner air passage core pipe (7-5) is connected with an inner air passage lower joint (7-6) through threads, the high-pressure core pipe upper joint (7-1) is provided with an upper circumferential uniform air passage (7-7), the high-pressure core pipe (7-2) is provided with a middle circumferential uniform air passage (7-8), the lower end of the high-pressure core pipe lower joint (7-3) is provided with a lower circumferential uniform air passage (7-9), the upper end of the middle circumferential uniform air passage (7-8) is communicated with the upper circumferential uniform air passage (7-7), and the lower end of the middle circumferential uniform air passage (7-9) is communicated with the lower end of the high-pressure core pipe to form an inner air passage channel;
An outer air passage upper joint (7-10) is arranged on the outer side of the inner air passage upper joint (7-4), the lower end of the outer air passage upper joint (7-10) is connected with the upper end of a supporting sleeve (7-11) through a sealing ring, the lower end of the supporting sleeve (7-11) is connected with an outer air passage lower joint (7-12) through a sealing ring, the supporting sleeve (7-11) is positioned on the periphery of the inner air passage core tube (7-5), the outer air passage lower joint (7-12) is positioned on the periphery of the inner air passage lower joint (7-6), the inner air passage upper joint (7-4) is provided with outer air passages (7-13) uniformly distributed in the outer periphery, an outer air passage (7-14) is arranged between the supporting sleeve (7-11) and the inner air passage core tube (7-5), the inner air passage lower joint (7-6) is provided with outer air passages (7-15) uniformly distributed in the outer periphery, the upper ends of the outer air passages (7-14) are communicated with the outer air passages (7-13), and the lower ends of the outer air passages (7-15) are communicated with each other uniformly distributed in the outer periphery;
The outer airway upper joint (7-10) is provided with an upper mounting seat (7-16), an upper threaded connection part is arranged in the upper mounting seat (7-16), the outer airway lower joint (7-12) is provided with a lower mounting seat (7-17), and a lower threaded connection part is arranged in the lower mounting seat (7-17).
2. The integrated drilling machine for forming the strong hole and pile, which is suitable for the hole bottom impact jet grouting method, according to claim 1, is characterized in that: the top driving wheel assembly comprises a driving wheel support (5-2), the driving wheel support (5-2) is fixedly arranged on the top end face of the pushing frame body (5-1), a driving chain wheel (5-3) is rotatably arranged on the driving wheel support (5-2), and two ends of the driving chain wheel (5-3) are connected with a driving motor (5-4) through a speed reducer.
3. The integrated drilling machine for forming the strong hole and pile, which is suitable for the hole bottom impact jet grouting method, according to claim 1, is characterized in that: one side of the butter cylinder body (5-6) is provided with a baffle ring (5-6-1), and a buffer spring (5-12) is arranged between the baffle ring (5-6-1) and the compression ring (5-5).
4. The integrated drilling machine for forming the strong hole and pile, which is suitable for the hole bottom impact jet grouting method, according to claim 1, is characterized in that: a speed measuring follower wheel assembly is arranged between the top driving wheel assembly and the bottom tensioning roller assembly; the speed measuring follow-up wheel assembly comprises a speed measuring follow-up sprocket (5-13), and an encoder (5-14) is arranged on one side of the speed measuring follow-up sprocket (5-13).
5. The integrated drilling machine for forming the strong hole and pile, which is suitable for the hole bottom impact jet grouting method, according to claim 1, is characterized in that: the power head comprises a power head box body (6-1), a large gear shaft (6-2) is arranged in the middle of the power head box body (6-1) in a rotating mode, a large gear (6-3) is arranged on the periphery of the middle of the large gear shaft (6-2), a motor connecting shaft (6-4) is arranged on the periphery of the large gear shaft (6-2), a pinion (6-5) is arranged on the periphery of the middle of the motor connecting shaft, the pinion (6-5) is meshed with the large gear (6-3), a driving motor (6-6) is arranged on the end face of the power head box body (6-1), and the driving motor (6-6) is connected with the motor connecting shaft (6-4).
6. The integrated drilling machine for forming the strong hole and pile, which is suitable for the hole bottom impact jet grouting method, according to claim 5, is characterized in that: the motor connecting shaft (6-4) comprises a first motor connecting shaft, an encoder connecting shaft (6-7) is arranged below the first motor connecting shaft, and an encoder (6-8) is arranged below the encoder connecting shaft (6-7); a lubrication assembly is arranged on the power head box body (6-1); the motor connecting shaft (6-4) comprises a second motor connecting shaft; the lubrication assembly comprises a gear pump connecting shaft (6-9), the gear pump connecting shaft (6-9) is arranged below the second motor connecting shaft, the lubrication gear pump (6-10) is connected below the gear pump connecting shaft (6-9), an oil outlet (6-11) is connected to the input end of the lubrication gear pump (6-10), the oil outlet (6-11) is located at the lower portion of the power head box (6-1), an oil inlet (6-12) is connected to the output end of the lubrication gear pump (6-10), and the oil inlet (6-12) is located at the upper portion of the power head box (6-1).
7. The integrated drilling machine for forming the strong hole and pile, which is suitable for the hole bottom impact jet grouting method, according to claim 1, is characterized in that: an upper pressing plate (7-18) is arranged at the upper end of the upper mounting seat (7-16), and an upper damping rubber pad (7-19) is arranged between the upper mounting seat (7-16) and the upper pressing plate (7-18).
8. The integrated drilling machine for forming the strong hole and pile, which is suitable for the hole bottom impact jet grouting method, according to claim 1, is characterized in that: the lower mounting seat (7-17) is characterized in that a lower pressing plate (7-20) is arranged at the lower end of the lower mounting seat (7-17), and a lower damping rubber pad (7-21) is arranged between the lower mounting seat (7-17) and the lower pressing plate (7-20).
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| CN201910531904.XA CN110130829B (en) | 2019-06-19 | 2019-06-19 | Powerful pore-forming pile-forming integrated drilling machine suitable for hole bottom impact rotary spraying construction method |
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| CN201910531904.XA CN110130829B (en) | 2019-06-19 | 2019-06-19 | Powerful pore-forming pile-forming integrated drilling machine suitable for hole bottom impact rotary spraying construction method |
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| CN110130829B true CN110130829B (en) | 2024-06-28 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103982132A (en) * | 2014-05-22 | 2014-08-13 | 中国地质装备集团有限公司 | Geological exploration multi-process drilling machine power head |
| CN205047152U (en) * | 2015-10-14 | 2016-02-24 | 中煤地第二勘探局有限责任公司 | Full hydraulic rotary engineering driller |
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| CN210264507U (en) * | 2019-06-19 | 2020-04-07 | 江苏省无锡探矿机械总厂有限公司 | Strong hole forming and pile forming integrated drilling machine suitable for hole bottom impact rotary spraying construction method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN202337976U (en) * | 2011-06-17 | 2012-07-18 | 北京荣创科宏岩土工程有限公司 | In-hole impact high-pressure jet grouting equipment |
| CN106761399B (en) * | 2017-02-28 | 2020-04-24 | 北京中岩大地科技股份有限公司 | Multifunctional drilling machine and construction method thereof |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103982132A (en) * | 2014-05-22 | 2014-08-13 | 中国地质装备集团有限公司 | Geological exploration multi-process drilling machine power head |
| CN205047152U (en) * | 2015-10-14 | 2016-02-24 | 中煤地第二勘探局有限责任公司 | Full hydraulic rotary engineering driller |
| CN105822230A (en) * | 2016-02-04 | 2016-08-03 | 平南县六陈镇炳德机械厂 | Rotary excavating assistance device for rotary drilling rig and rotary drilling rig |
| CN210264507U (en) * | 2019-06-19 | 2020-04-07 | 江苏省无锡探矿机械总厂有限公司 | Strong hole forming and pile forming integrated drilling machine suitable for hole bottom impact rotary spraying construction method |
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