CN107401375B - Directional drilling machine capable of detecting installation condition of drill rod and drilling method - Google Patents
Directional drilling machine capable of detecting installation condition of drill rod and drilling method Download PDFInfo
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- CN107401375B CN107401375B CN201710719357.9A CN201710719357A CN107401375B CN 107401375 B CN107401375 B CN 107401375B CN 201710719357 A CN201710719357 A CN 201710719357A CN 107401375 B CN107401375 B CN 107401375B
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/04—Directional drilling
- E21B7/046—Directional drilling horizontal drilling
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B3/00—Rotary drilling
- E21B3/02—Surface drives for rotary drilling
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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 characterized by means for land transport with their own drive, e.g. skid mounting or wheel mounting
- E21B7/022—Control of the drilling operation; Hydraulic or pneumatic means for activation or operation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
Abstract
The invention relates to a directional drilling machine capable of detecting the installation condition of a drill rod and a drilling method, wherein the directional drilling machine comprises a chassis, a diesel engine, an earth anchor plate, a drilling tool and a driving group for driving the drilling tool to act, the diesel engine supplies power to the driving group, and the drilling tool comprises a plurality of drill rods and drill bits which can be connected in sequence; the driving unit comprises a rack arranged on the chassis, a main machine which moves in a matching way with the rack and is used for dragging the drill rod to drill and drag back, and a gearbox arranged on the main machine, wherein a drill rod positioning shaft is arranged on the gearbox; the drill rod positioning shaft is detachably connected with the drill rod to drive the drill rod to rotate; the starting unit comprises a relay coil and a proximity switch arranged on a drill rod positioning shaft; the proximity switch is closed when the drill rod is installed in place; the proximity switch is electrically connected with the diesel engine after being connected with the relay coil in series; the relay coil comprises a normally open contact which is closed when electrified and a normally closed contact which is opened when electrified.
Description
Technical Field
The invention relates to the field of drilling machinery, in particular to a directional drilling machine capable of detecting installation conditions of a drill rod and a drilling method.
Background
The horizontal directional drilling machine is more and more widely applied, however, the existing drilling machine does not have a device for automatically detecting the installation condition of a drill bit, and the condition that a drill rod is not installed in place often occurs, so that the conditions of poor drilling precision, damage of the drill rod, equipment failure and danger to personnel are caused.
Chinese patent No. CN2683821Y, granted publication number, discloses a multifunctional trenchless horizontal directional drilling machine, and specifically discloses a multifunctional trenchless horizontal directional drilling machine, which comprises a drilling machine chassis, a drilling machine inclination angle adjusting mechanism, a reciprocating mechanism, a power head gear box, hydraulic tongs and a drill rod. The drilling machine chassis is of a flat plate type structure, a plurality of anchoring plates for fixing the chassis and the drilling machine are arranged on two sides of the chassis, the inclination angle adjusting mechanism of the drilling machine consists of two multi-stage oil cylinders, one ends of the multi-stage oil cylinders are fixed at the end parts of the chassis, the other ends of the multi-stage oil cylinders are fixed on the outer sides of one ends of groove-shaped guide rails, the other ends of the groove-shaped guide rails are movably connected with the chassis, the inclination angle range of the drilling machine is controlled by lifting of the multi-stage oil cylinders to be 0-23 degrees, the reciprocating mechanism is an oil cylinder direct drive planker mechanism, the oil cylinder direct drive planker mechanism consists of a planker and an oil cylinder or an equal-thrust telescopic oil cylinder, the tail end of a piston rod is in pin joint with the groove-shaped guide rails, and an oil cylinder barrel is connected with the planker with a central hole through a flange. The method is mainly used for laying construction of urban traffic road pipelines and cables. The drilling machine can overcome the problems that the existing drilling machine can only carry out ground construction and cannot carry out underground construction, and the problem that the existing drilling machine cannot meet the requirements of both horizontal drilling and strong drawing hole forming capability is solved; however, the scheme disclosed in the patent cannot detect the installation condition of the drill rod.
Disclosure of Invention
The invention provides a directional drilling machine capable of detecting the installation condition of a drill rod and a drilling method.
The technical scheme of the invention is as follows:
a directional drilling machine capable of detecting the installation condition of a drill rod comprises a chassis, a diesel engine, an earth anchor plate, a drilling tool and a driving group for driving the drilling tool to act, wherein the diesel engine supplies power to the driving group, and the drilling tool comprises a plurality of drill rods and drill bits which can be connected in sequence; the driving unit comprises a rack arranged on the chassis, a main machine which moves in a matching way with the rack and is used for dragging the drill rod to drill and drag back, and a gearbox arranged on the main machine, wherein a drill rod positioning shaft is arranged on the gearbox; the drill rod positioning shaft is detachably connected with the drill rod to drive the drill rod to rotate; the starting unit comprises a relay coil and a proximity switch arranged on a drill rod positioning shaft; the proximity switch is closed when the drill rod is installed in place; the proximity switch is electrically connected with the diesel engine after being connected with the relay coil in series; the relay coil comprises a normally open contact which is closed when electrified and a normally closed contact which is opened when electrified; the normally open contact controls the on-off of the diesel engine, and the normally closed contact controls the on-off of a warning lamp.
Wherein, the drill bit is frustum-shaped, and the middle part of one end with smaller diameter is provided with a bowl-shaped groove; the opening of the bowl-shaped groove is in arc transition with the side surface of the frustum-shaped drill bit; a plurality of equilateral triangle shallow grooves are respectively arranged on the inner arc surface of the bowl-shaped groove, the arc surface and the side surface of the frustum-shaped drill bit; one end of each of a plurality of equilateral triangle bumps with the same shape as the shallow groove is respectively embedded into the shallow groove; through holes are respectively formed in the positions, close to the three corners, of the equilateral triangle lug; a plurality of first digging tooth mounting holes are formed in the bottom surface of the shallow groove corresponding to the through holes; the bullet digging teeth matched with the drill bit penetrate through the through hole and then are installed in the first digging tooth installation hole, and meanwhile, the triangular convex blocks are fixed in the shallow grooves.
The triangular bumps are arranged in a gathering way to form a plurality of fusiform shapes with radian; the two pointed ends of the shuttle shape face to the tangential direction of the cambered surface of the drill bit at the position; a plurality of shuttles are evenly disposed around the center of the drill bit.
Wherein, the side surface of one end with larger diameter of the drill bit is provided with an annular arc-shaped bulge; the projection is tightly attached to the side of the drill bit and the tip of the projection faces the smaller diameter end of the drill bit.
The bottom of the bowl-shaped groove is provided with a circular through hole; the drill rod is in a hollow tubular shape; the end with the larger diameter of the drill bit is detachably and fixedly connected with the end part of the drill rod; the circular through hole is communicated with the interior of the drill rod; a flood dragon shaft is arranged in the drill rod along the length direction of the drill rod; the transmission direction of the flood dragon shaft is opposite to the feeding direction of the drill bit; one end of a rotating column parallel to the axial direction of the drill bit extends into the drill rod through a circular through hole and is detachably connected with the end part of the flood dragon shaft, and the other end of the rotating column is provided with a detachable arc-shaped top cap; a plurality of second digging tooth mounting holes inclining to one side of the arc-shaped top cap are uniformly formed in the outer circumferential surface of the rotating column, which is positioned in the bowl-shaped groove; the second digging tooth mounting hole is also provided with bullet digging teeth.
The outer circumference of the flood dragon shaft is sleeved with bearings at intervals; one end of a plurality of supporting rods uniformly arranged along the outer circumference of the bearing is fixed on the outer ring of the bearing, and the other end of the supporting rods is fixed on the inner wall of the drill rod; the drilling machine further comprises a coupler which can enable flood dragon shafts in the plurality of drill rods to be connected with one another to rotate in a linkage mode.
A non-excavation directional drilling method capable of detecting installation conditions of drill rods is adopted, and the directional drilling machine capable of detecting installation conditions of drill rods comprises the following steps in sequence:
the method comprises the following steps: installing a drill bit at the end part of a first drill rod, sleeving the other end of the drill rod into the center of an annular body, synchronously starting a linear motor, and driving an arc-shaped pressing plate to compress the outer circumferential surface of the drill rod by a telescopic rod;
step two: the gearbox drives the drill rod to rotate, the base body moves on the tooth track to drive the drill rod to feed, and the inner disc drives the dragon shaft and the drill rod to rotate in opposite directions;
step three: embedding the triangular convex blocks into the shallow grooves, and respectively inserting the digging teeth into first digging tooth mounting holes in the shallow grooves after the digging teeth penetrate through the through holes; digging teeth are also arranged on the second digging tooth mounting hole; the drill bit drills into the ground, the digging teeth dig soil along with the rotating force and the feeding force of the drill bit, the digging teeth on the circular arc firstly destroy the structure of the soil and guide the soil into the bowl-shaped groove and the side face of the drill bit respectively, the soil guided to the side face of the drill bit is extruded by the cone-shaped structure of the drill bit to compact the wall of the hole, the soil guided into the bowl-shaped groove is guided to the circular through hole under the guiding of the digging teeth on the rotating column and the bowl-shaped groove, and is crushed under the mutual reverse shearing action of the digging teeth on the rotating column and the bowl-shaped groove, and then the soil is conveyed out of the ground along the inside of the drill rod by the flood dragon shaft; in the process, after the drill rod is installed in place, the proximity switch is closed, the relay coil is electrified, the normally open contact is closed, the diesel engine control line is connected, ignition can be started, the normally closed contact is disconnected, and the warning lamp is turned off; if the drill rod is not installed in place, the proximity switch is not closed, the relay coil connected with the proximity switch in series is not electrified, the normally open contact of the relay is not closed, the control line of the diesel engine is disconnected, the diesel engine cannot be ignited and started, the normally closed contact of the relay is not disconnected, and the warning lamp is on;
step four: when the other end of the first drill rod is fed to the gearbox, drilling is stopped, the outer disc loosens the drill rod, and the inner disc loosens the flood dragon shaft; the host machine retreats to the tail end of the rack; and (4) connecting the next drill rod to the tail end of the first drill rod, and repeating the process of the first step after connecting the flood dragon shafts of the first drill rod and the next drill rod by using the coupler.
The invention has the following beneficial effects:
1. the invention can effectively detect the installation condition of the drill rod, effectively prevent the drill rod from being damaged, prevent equipment faults and personnel dangers and effectively improve the drilling precision.
2. The drill bit can guide soil into the bowl-shaped groove and the side face of the drill bit respectively, the soil guided to the side face of the drill bit is extruded by the drill bit round table-shaped structure to compact the wall of the hole, the stability of the wall of the hole is effectively improved, the soil in the bowl-shaped groove can be effectively guided to be crushed and then is conveyed out of the ground along the inside of the drill rod by the flood dragon shaft, and the phenomena that the resistance is too large, the energy is wasted and the drill bit is damaged due to the transitional accumulation and extrusion of the soil in the hole drilling process can be reduced.
3. According to the invention, the first digging tooth mounting hole and the second digging tooth mounting hole are formed in the arc-shaped raised line, so that not only can the worn digging teeth be conveniently replaced, but also the rotating force of the drill bit can be effectively utilized to simultaneously feed, shear and crush the soil layer, the functional parts of the digging teeth are effectively utilized, the hole digging effect is good, and simultaneously, the soil can be effectively guided to enter the drill rod from the circular through hole to be transmitted out.
4. The arrangement mode of the triangular lugs optimizes the stress of the triangular lugs, prolongs the service life of the triangular lugs, and can not only break and guide soil by using the structure of the triangular lugs, but also improve the bearing capacity of the triangular lugs by using the acting force of the adjacent triangular lugs.
5. The digging teeth of the invention pass through the through holes on the triangular lugs to be installed in the drill bit, the digging teeth on each triangular lug have good installation stability and accurate and stable relative position relation by utilizing the integral structure of the triangular lugs, and can also effectively extend the clamped position of the digging teeth outwards, thereby preventing the digging teeth from being broken; meanwhile, the triangular convex blocks are fastened in the shallow grooves by taking the digging teeth as rivet structures, so that the triangular convex blocks can be effectively prevented from falling off; therefore, the triangular projections and the digging teeth have complementary, mutually promoting relationships.
Drawings
FIG. 1 is a front view of the drill rig of the present invention;
FIG. 2 is a side view of the drilling rig of the present invention;
FIG. 3 is a top view of the drilling rig of the present invention;
FIG. 4 is a schematic view of a proximity switch and transmission of the present invention;
FIG. 5 is a schematic view of the present invention detecting an installed bit;
FIG. 6 is a schematic view of the drill bit and drill rod of the present invention;
FIG. 7 is a schematic top view of the drill bit of the present invention.
In the figures, the reference numbers are given by:
1-chassis, 3-diesel engine, 4-ground anchor plate, 5-drilling tool, 51-drilling rod, 511-flood dragon shaft, 512-bearing, 513-supporting rod, 514-coupler, 52-drilling bit, 521-bowl-shaped groove, 522-circular through opening, 523-circular arc, 524-triangular bump, 526-digging tooth, 528-protrusion, 6-driving group, 61-tooth rail, 621-seat body, 62-host, 63-gearbox, 631-drilling rod positioning shaft, 7-proximity switch, 8-relay coil, 81-normally open contact, 82-normally closed contact and 9-warning lamp.
Detailed Description
The invention is described in detail below with reference to the figures and the specific embodiments.
Referring to fig. 1 to 5, a directional drilling machine capable of detecting the installation condition of a drill rod comprises a chassis 1, a diesel engine 3, an earth anchor plate 4, a drilling tool 5 and a driving group 6 for driving the drilling tool 5 to act, wherein the diesel engine 3 supplies power to the driving group 6, and the drilling tool 5 comprises a plurality of drill rods 51 and a drill bit 52 which can be connected in sequence; the driving set 6 comprises a rack 61 arranged on the chassis 1, a main machine 62 which moves in cooperation with the rack 61 to drag the drill rod 51 to drill and drag back, and a gearbox 63 arranged on the main machine 62, wherein a drill rod positioning shaft 631 is arranged on the gearbox 63; the drill rod positioning shaft 631 is detachably connected with the drill rod 51 to drive the drill rod 51 to rotate; the device also comprises a starting unit arranged on the drilling machine, wherein the starting unit comprises a relay coil 8 and a proximity switch 7 arranged on the drill rod positioning shaft 631; the proximity switch 7 is closed when the drill rod 51 is installed in place; the proximity switch 7 is connected with the relay coil 8 in series and then is electrically connected with the diesel engine 3; the relay coil 8 comprises a normally open contact 81 which is closed by electrifying and a normally closed contact 82 which is opened by electrifying; the normally open contact 81 controls the diesel engine 3 to be powered on and powered off, and the normally closed contact 82 controls the warning lamp 9 to be turned on and off.
Referring to fig. 6 and 7, the drill 52 is frustum-shaped, and a bowl-shaped groove 521 is formed in the middle of one end with a smaller diameter; the opening of the bowl-shaped groove 521 is in transition with the side surface of the frustum-shaped drill 52 through an arc 523; a plurality of equilateral triangle shallow grooves are respectively formed on the inner arc surface of the bowl-shaped groove 521, the arc 523 and the side surface of the frustum-shaped drill bit 52; one end of each equilateral triangle bump 524 with the same shape as the shallow slot is respectively embedded into the shallow slot; through holes are respectively formed in the positions, close to the three corners, of the equilateral triangle convex block 524; a plurality of first digging tooth mounting holes are formed in the bottom surface of the shallow groove corresponding to the through holes; the bullet pick 526 matching the bit 52 is inserted into the first pick mounting hole after passing through the through hole, while the triangular projections 524 are fixed in the shallow grooves; the digging teeth 526 are installed in the drill 52 through the through holes of the triangular projections 524, and the digging teeth 526 of each triangular projection 524 have good installation stability and precise and stable relative position relationship by virtue of the integral structure of the triangular projections 524, and can also effectively extend the clamped position of the digging teeth 526 outwards, so that the digging teeth 526 can be prevented from being broken; meanwhile, the triangular bump 524 is fastened in the shallow groove by using the digging tooth 526 as a rivet structure, so that the triangular bump 524 can be effectively prevented from falling off; accordingly, the triangular projections 524 and the digging teeth 526 have a complementary, synergistic relationship.
The triangular bumps 524 are arranged in a gathering manner to form a plurality of fusiform shapes with radian; the two pointed ends of the shuttle shape face to the tangential direction of the cambered surface of the drill bit 52; a plurality of shuttles are evenly disposed around the center of the drill bit 52; the arrangement mode of the triangular lugs 524 optimizes the stress of the triangular lugs 524, prolongs the service life of the triangular lugs, and can not only break and guide soil by utilizing the structure of the triangular lugs 524, but also improve the bearing capacity of the triangular lugs 524 by utilizing the acting force of the adjacent triangular lugs 524.
Wherein, the side surface of one end with larger diameter of the drill bit 52 is provided with an annular arc-shaped bulge 528; the projection 528 abuts the side of the bit 52 and has a tip that faces the smaller diameter end of the bit 52.
Wherein, a circular through opening 522 is arranged at the bottom of the bowl-shaped groove 521; the drill rod 51 is in a hollow tubular shape; the end with the larger diameter of the drill bit 52 is detachably and fixedly connected with the end part of the drill rod 51; the circular through hole 522 is communicated with the interior of the drill rod 51; a flood dragon shaft 511 is arranged in the drill rod 51 along the length direction; the conveying direction of the flood dragon shaft 511 is opposite to the feeding direction of the drill 52; one end of a rotating column 13 parallel to the axial direction of the drill bit 52 extends into the drill rod 51 through a circular through hole 522 to be detachably connected with the end part of the flood dragon shaft 511, and the other end of the rotating column is provided with a detachable arc-shaped top cap 131; a plurality of second digging tooth mounting holes 132 inclined towards one side of the arc-shaped top cap 131 are uniformly formed in the outer circumferential surface of the rotating column 13 positioned in the bowl-shaped groove 521; a bullet nose tooth 526 is also mounted in the second tooth mounting hole 132.
The bearing 512 is sleeved on the outer circumference of the flood dragon shaft 511 at a certain distance; one end of a plurality of supporting rods 513 uniformly arranged along the outer circumference of the bearing 512 is fixed on the outer ring of the bearing 512, and the other end is fixed on the inner wall of the drill rod 51; the drilling machine further comprises a coupler 514 which can enable the flood dragon shafts 511 in the drill rods 51 to be connected with each other to rotate in a linkage mode.
A non-excavation directional drilling method capable of detecting the installation condition of a drill rod comprises the following steps of:
the method comprises the following steps: the drill bit 52 is arranged at the end part of the first drill rod 51, the other end of the drill rod 51 is sleeved in the center of the annular body 625, the linear motor 626 is synchronously started, and the telescopic rod 627 drives the arc-shaped pressing plate 628 to press the outer circumferential surface of the drill rod 51;
step two: the gearbox 63 drives the drill rod 51 to rotate, meanwhile, the seat body 621 moves on the rack 61 to drive the drill rod 51 to feed, and the inner disc 624 simultaneously drives the dragon shaft 511 to rotate reversely with the drill rod 51;
step three: embedding the triangular convex block 524 into the shallow groove, and respectively inserting the digging teeth 526 into the first digging tooth mounting holes in the shallow groove after penetrating through the through holes; the digging tooth 526 is also mounted in the second digging tooth mounting hole 132; the drill bit 52 drills into the ground, the digging tooth 526 digs soil by the rotating force and the feeding force of the drill bit 52, the digging tooth on the circular arc 523 firstly destroys the structure of the soil and guides the soil into the bowl-shaped groove 521 and the side surface of the drill bit 52 respectively, the soil guided to the side surface of the drill bit 52 is tightly pressed by the circular truncated cone-shaped structure of the drill bit 52, the soil guided into the bowl-shaped groove 521 is guided to the circular through hole 522 under the guiding of the digging tooth on the rotating column 13 and the bowl-shaped groove 521, is broken under the mutual reverse shearing action of the digging tooth on the rotating column 13 and the bowl-shaped groove 521, and is then conveyed out of the ground along the inside of the drill rod 51 by the flood dragon shaft 511; in the process, after the drill rod is installed in place, the proximity switch 7 is closed, the relay coil 8 is electrified, the normally open contact 81 is closed, the control line of the diesel engine 3 is connected and can be ignited to start, the normally closed contact 82 is disconnected, and the warning lamp 9 is turned off; if the drill rod is not installed in place, the proximity switch 7 is not closed, the relay coil 8 connected with the proximity switch in series is not electrified, the normally open contact 81 of the relay is not closed, the control line of the diesel engine 3 is disconnected, the diesel engine 3 cannot be ignited and started, the normally closed contact 82 of the relay is not disconnected, and the warning lamp 9 is on;
step four: when the other end of the first drill rod 51 is fed to the gearbox 63, the drilling is stopped, the outer disk 623 is made to release the drill rod 51, and the inner disk 624 is made to release the dragon shaft 511; the host 62 retracts to the end of the rack 61; and (3) connecting the next drill pipe 51 to the end of the first drill pipe 51, connecting the flood dragon shaft 511 of the first drill pipe 51 and the next drill pipe 51 by using the coupling 514, and repeating the process in the first step.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (5)
1. A directional drilling machine capable of detecting the installation condition of a drill rod comprises a chassis (1), a diesel engine (3), an earth anchor plate (4), a drilling tool (5) and a driving group (6) for driving the drilling tool (5) to act, wherein the diesel engine (3) supplies power to the driving group (6), and the drilling tool (5) comprises a plurality of drill rods (51) and drill bits (52) which can be connected in sequence; the driving set (6) comprises a rack (61) arranged on the chassis (1), a main machine (62) which is matched with the rack (61) to move and used for dragging the drill rod (51) to drill and drag back, and a gearbox (63) arranged on the main machine (62), wherein a drill rod positioning shaft (631) is arranged on the gearbox (63); the drill rod positioning shaft (631) is detachably connected with the drill rod (51) to drive the drill rod (51) to rotate; the method is characterized in that: the drilling machine also comprises a starting unit arranged on the drilling machine, wherein the starting unit comprises a relay coil (8) and a proximity switch (7) arranged on a drill rod positioning shaft (631); the proximity switch (7) is closed when the drill rod (51) is installed in place; the proximity switch (7) is connected with the relay coil (8) in series and then is electrically connected with the diesel engine (3); the relay coil (8) comprises a normally open contact (81) which is closed when electrified and a normally closed contact (82) which is opened when electrified; the normally open contact (81) controls the diesel engine (3) to be switched on and off, and the normally closed contact (82) controls a warning lamp (9) to be switched on and off; the drill bit (52) is in a frustum shape, and a bowl-shaped groove (521) is formed in the middle of one end with a smaller diameter; the opening of the bowl-shaped groove (521) is in transition with the side surface of the frustum-shaped drill bit (52) through an arc (523); a plurality of equilateral triangle shallow grooves are respectively formed on the inner arc surface of the bowl-shaped groove (521), the arc (523) and the side surface of the frustum-shaped drill bit (52); one end of a plurality of equilateral triangle convex blocks (524) with the same shape as the shallow grooves are respectively embedded into the shallow grooves; through holes are respectively formed in the positions, close to the three corners, of the equilateral triangle lug (524); a plurality of first digging tooth mounting holes are formed in the bottom surface of the shallow groove corresponding to the through holes; bullet digging teeth (526) matched with the drill bit (52) penetrate through the through hole and then are installed in the first digging tooth installation hole, and meanwhile equilateral triangle convex blocks (524) are fixed in the shallow grooves;
the bottom of the bowl-shaped groove (521) is provided with a circular through hole (522); the drill rod (51) is in a hollow tubular shape; one end of the drill bit (52) with larger diameter is detachably and fixedly connected with the end part of the drill rod (51); the circular through hole (522) is communicated with the interior of the drill rod (51); a flood dragon shaft (511) is arranged in the drill rod (51) along the length direction of the drill rod; the conveying direction of the flood dragon shaft (511) is opposite to the feeding direction of the drill bit (52); one end of a rotating column (13) parallel to the axial direction of the drill bit (52) extends into the drill rod (51) from a circular through hole (522) to be detachably connected with the end part of the screw shaft (511), and the other end of the rotating column is provided with a detachable arc-shaped top cap (131); a plurality of second digging tooth mounting holes (132) which are inclined towards one side of the arc-shaped top cap (131) are uniformly formed in the outer circumferential surface of the rotating column (13) positioned in the bowl-shaped groove (521); a bullet nose tooth (526) is also mounted in the second tooth mounting hole (132).
2. A directional drilling machine capable of detecting the installation of a drill rod as claimed in claim 1, wherein: a plurality of equilateral triangle projections (524) are arranged in a gathering way to form a plurality of fusiform shapes with radian; the two pointed ends of the shuttle shape face to the tangential direction of the cambered surface of the drill bit (52) at the position; the plurality of shuttles are evenly disposed around the center of the drill bit (52).
3. A directional drilling machine capable of detecting the installation of a drill pipe according to claim 1, wherein: the side surface of one end with larger diameter of the drill bit (52) is provided with an annular arc-shaped bulge (528); the arc-shaped bulge (528) is tightly attached to the side surface of the drill bit (52) and the tip end of the arc-shaped bulge faces to the smaller diameter end of the drill bit (52).
4. A directional drilling machine capable of detecting the installation of a drill rod as claimed in claim 3, wherein: bearings (512) are sleeved on the outer circumference of the flood dragon shaft (511) at intervals; one ends of a plurality of supporting rods (513) which are uniformly arranged along the outer circumference of the bearing (512) are fixed on the outer ring of the bearing (512), and the other ends are fixed on the inner wall of the drill rod (51); the drilling machine further comprises a coupler (514) which can enable flood dragon shafts (511) in the drill rods (51) to be connected with one another and rotate in a linkage mode.
5. A non-excavation directional drilling method capable of detecting installation conditions of drill rods, which adopts the directional drilling machine capable of detecting installation conditions of drill rods, as claimed in claim 4, comprises the following steps in sequence:
the method comprises the following steps: a drill bit (52) is arranged at the end part of a first drill rod (51), the other end of the drill rod (51) is sleeved into the center of an annular body (625), a linear motor (626) is synchronously started, and an expansion rod (627) drives an arc-shaped pressing plate (628) to tightly press the outer circumferential surface of the drill rod (51);
step two: the gearbox (63) drives the drill rod (51) to rotate, meanwhile, the base body (621) moves on the tooth track (61) to drive the drill rod (51) to feed, and the inner disc (624) drives the flood dragon shaft (511) and the drill rod (51) to rotate in opposite directions;
step three: embedding the equilateral triangle bump (524) into the shallow groove, and respectively inserting the digging teeth (526) into first digging tooth mounting holes in the shallow groove after penetrating through the through holes; the digging tooth (526) is also arranged on the second digging tooth mounting hole (132); the drill bit (52) drills into the ground, the digging teeth (526) dig the soil along the rotating force and the feeding force of the drill bit (52), the digging teeth on the circular arc (523) firstly destroy the structure of the soil and guide the soil into the bowl-shaped groove (521) and the side surface of the drill bit (52), the soil guided to the side surface of the drill bit (52) is extruded by the circular-table-shaped structure of the drill bit (52) to compact the wall of the hole, the soil guided into the bowl-shaped groove (521) is guided to the circular through hole (522) under the guiding of the digging teeth on the rotary column (13) and the bowl-shaped groove (521), and is crushed under the mutual reverse shearing action of the digging teeth on the rotary column (13) and the bowl-shaped groove (521), and then the soil is conveyed out of the ground along the interior of the drill rod (51) by the auger shaft (511); in the process, after the drill rod is installed in place, the proximity switch (7) is closed, the relay coil (8) is electrified, the normally open contact (81) is closed, the control line of the diesel engine (3) is connected and can be ignited to start, the normally closed contact (82) is disconnected, and the warning lamp (9) is extinguished; if the drill rod is not installed in place, the proximity switch (7) is not closed, the relay coil (8) connected with the proximity switch in series is not electrified, the relay normally open contact (81) is not closed, the control line of the diesel engine (3) is disconnected, the diesel engine (3) cannot be ignited and started, the relay normally closed contact (82) is not disconnected, and the warning lamp (9) is on;
step four: when the other end of the first drill rod (51) is fed to the gearbox (63), drilling is stopped, the outer disc (623) loosens the drill rod (51), and the inner disc (624) loosens the dragon shaft (511); the host (62) retracts to the tail end of the rack (61); and (3) connecting the next drill rod (51) to the tail end of the first drill rod (51), connecting the flood dragon shaft (511) of the first drill rod (51) and the next drill rod (51) by using a coupling (514), and repeating the process of the step one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN107829682A (en) * | 2017-12-14 | 2018-03-23 | 湖南湘华优路交通科技有限公司 | A kind of descending horizontal drill |
| CN108590523A (en) * | 2018-05-31 | 2018-09-28 | 福建亿钻机械有限公司 | A kind of intelligent multifunction horizontal directional drilling machine |
| CN114961598B (en) * | 2022-07-13 | 2022-12-27 | 张家口宣化华泰矿冶机械有限公司 | Control method for automatically connecting and disconnecting drill rod by one key for soil Dan Yanceng drilling |
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| WO2001066900A2 (en) * | 2000-03-03 | 2001-09-13 | Vermeer Manufacturing Company | Method and apparatus for directional boring under mixed conditions |
| US20020046882A1 (en) * | 2000-08-21 | 2002-04-25 | Smith Richard Kenneth | Irregular surface drill rod for a directional drilling machine |
| CN201228521Y (en) * | 2008-06-03 | 2009-04-29 | 武汉京冶地基基础工程有限责任公司 | Safety device for preventing boring rod from breaking for rotary drilling rig |
| CN203685037U (en) * | 2014-01-24 | 2014-07-02 | 河南理工大学 | Pipe-follow drilling chambering device of soft broken coal bed gas extraction hole |
| JP6330573B2 (en) * | 2014-08-20 | 2018-05-30 | 三菱マテリアル株式会社 | Drilling tools |
| CN204532069U (en) * | 2015-04-23 | 2015-08-05 | 浙江德前机械制造有限公司 | The auxiliary step-up system of horizontal directional drilling machine |
| CN105041222B (en) * | 2015-07-13 | 2017-11-10 | 中国石油天然气集团公司 | Interior chip removal PDC drill bit |
| DE102016001780A1 (en) * | 2016-02-08 | 2017-08-24 | Stefan von den Driesch | Cost-effective method of calibrating magnetic field sensors in a high-precision directional drill for early, reliable and timely hole definition and a high-precision directional drill for low-cost deep direction drilling |
| CN106761427A (en) * | 2016-12-28 | 2017-05-31 | 武汉武船重型装备工程有限责任公司 | One kind bores stake drilling tool |
| CN207863865U (en) * | 2017-08-21 | 2018-09-14 | 福建亿钻机械有限公司 | A kind of directional drilling machine of detectable drilling rod installation situation |
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