The directional drilling machine that water jet advances continuously
Technical field
The invention belongs to mining creeps into the field, relate to a kind of employing high pressure water jet, to the sub-terrain mines rock stratum advance continuously, controlling party to horizontal drilling one slot equipment.
Background technology
In fields such as Mineral Engineering, geotechnical engineering, construction works, often need construction level hole or directed deep hole, to realize specific purposes.For example: be used for the preceding extraction of down-hole stope crossheading driving gas overpressure, utilize crossheading to carry out the face gas extraction; Be used for coal seam bump control and other geotechnical engineering construction horizontal drilling and unload crushing rock.The rig of prior art is to adopt the drilling rod rotation, and the principle of the broken rock of driving bit cutting is made.Its disadvantage is that efficiency of breaking rock is low, and penetration rate is slow, directed difficulty, and the boring size depends on the size of drill bit fully.Therefore, this rig can't satisfy the special operation of mining industry and geotechnical engineering.
High pressure water jet is the new technology that RECENT DEVELOPMENTS is got up, and is characterized in that the energy height by high-pressure water jet is concentrated, and the enormous impact power of shooting object can be processed operation to being hit thing, as to the fragmentation of material, cutting etc.To the eighties in last century, carried out the type approval test of high-pressure water jet punching (boring) both at home and abroad, be applied to the exploitation in coal seam.In the oil ground drilling, abroad have and adopt water jet to implement the research of boring continuously of ultra-short radius level, and obtained achievement simultaneously by vertical drilling.For the tunnel of underground construction, mining engineering, because spatial constraints, it is then very difficult to implement water jet boring.Prior art adopts short drill pipe, short steel pipes to extend step by step, carries water under high pressure to come rock-breaking drilling, because efficient is low, labour intensity is big, joint sealing is difficult, the pressure loss is serious, causes the high-pressure water jet directional drilling to be difficult to realize.
Summary of the invention
The objective of the invention is to overcome the shortcoming of prior art, a kind of continuous directional drilling machine that advances of water jet that is applicable to underground job is provided, not only solved the controlled technical barrier of continuous propelling, drilling direction of high-pressure water jet brill slotted hole, and have efficiency of construction height, drilling quality height, the reliable advantage of device security, thereby satisfied the requirement of underground construction special operation.
The present invention is achieved through the following technical solutions its purpose.The directional drilling machine that a kind of high-pressure water jet advances continuously, it is by winding mechanism, continuous steel pipe, steel pipe propulsive mechanism, steel tube straightening machine structure, water jet drill, with boring deviational survey inserting tube, direction controller, high-pressure hydraulic pump, oil pump, far controlling correction and boring and form with slot switched system and inclinometer.
Concrete structure: winding mechanism is installed on the support, continuous steel pipe is wrapped in twines on the cylinder, the steel pipe propulsive mechanism passes through the gear train transmission by motor, aligning mechanism can be corrected continuous steel pipe before being arranged on the steel pipe propulsive mechanism, water jet drill is installed in the continuous steel pipe front end, is connected with water jet drill with boring the deviational survey inserting tube, direction controller be connected with brill deviational survey inserting tube, the central axis that high-pressure hydraulic pump, oil pump pass through winding mechanism respectively is communicated with continuous steel pipe, water jet drill.
Described winding mechanism is by the winding cylinder that is fixed on by bearing, central axis on the base, the comb mechanism of be connected with base, the laying of roll circumference direction is twined on the edge, the driving mechanism of cylinder and comb mechanism is twined in transmission, fix with base and be parallel to the limiting roll that twines drum central axis, with water hole that twines drum central axis and oil guiding hole be tightly connected join oil, water dispensing apparatus is formed.
Described steel pipe propulsive mechanism is by the last lower box that is installed in the base upper gear box, be installed in steel pipe on the lower box respectively to rolling friction pulley by bearing, the guide rod of lower box and back-moving spring in the butt joint drive steel pipe by driving gear set the motor, the reducer that roll friction pulley are formed.
Described aligning mechanism is by the casing that is fixed on the base, places the vertical fixing directive wheel and the horizontal fixed directive wheel that are arranged alternately along continuous steel pipe in the casing, is positioned at the casing middle part and forms along the adjusting directive wheel that continuous steel pipe is provided with up and down.
The driving mechanism of described winding cylinder is by final drive shaft, drives head sprocket, through clutch and multiple-speed gear-box, passes to the winding drum central axis.
Described comb mechanism is made up of guide peg, leading screw, comb slide block, guide peg and leading screw be arranged in parallel, the comb slide block is driven by leading screw and is slidingly matched with guide peg, and guide peg is fixed on the barrel support along twining centre of the drum's direction of principal axis, and leading screw passes through chain wheel drive by twining drum central axis.
The steel pipe of described steel pipe propulsive mechanism can be several to (4,6,8,10 pairs) to rolling friction pulley, and its periphery is a concave surface along the circumferential direction, and concave surface is through coarse processing, and the radius of curvature of concave surface conforms to the diameter of continuous steel pipe.
Described winding drum central axis, a water hole and an oil guiding hole are arranged vertically, water hole is communicated with high-pressure hydraulic pump, oil guiding hole is communicated with oil pump, water hole and oil guiding hole one end are connected to the interface that axle head is joined oil, water dispensing apparatus, the other end is positioned at the centre of central axis, and its interface is connected to the back end interface of continuous steel pipe by water-supply-pipe, is connected to thin oil pipe in the continuous steel pipe by petroleum pipeline.
Described water hole and the oil transportation hole that is positioned on the central axis is connected to winding cylinder cylindrical with two flexible pipes, by the profit mixing tee thin oil pipe penetrated in the continuous steel pipe.The profit mixing tee adopts plasticity sealing means sealing water under high pressure and high-pressure oil passage.
The open-loop control system that described boring direction controller is made up of oil pump, manual three-position four-way valve, monitor.
The closed-loop control system that described boring direction controller can also be made up of oil pump, solenoid operated directional valve, programmable controller, signal processor.
Described directional tool, high-pressure hydraulic pump, oil pump are prior aries, can choose as requested.
Described continuous steel pipe is a kind of made through welding procedure by the seamless steel pipe of common straightcarbon steel, length steel pipe that can stand to twine repeatedly.
Described water jet drill is a kind of have boring, slot, the drill bit assembly of deviation-correcting function.
Described correction action is passed through the direction controller Long-distance Control by the deviational survey inserting tube through dip circle; Switch to by the action of preceding shot borehole and to retreat the slot action by the long-range execution of Long-distance Control switched system.
The present invention has reasonably designed because water-jet technology and continuous steel pipe technology are combined: comprise the steel pipe winding mechanism that twines cylinder and pipe racking device, comprise be provided with some to the steel pipe propulsive mechanism that rolls friction pulley, comprise the steel tube straightening machine structure that is arranged alternately directive wheel, regulating wheel etc.; Adopt advanced directional tool and open loop, closed-loop control system, realized the Long-distance Control and the deviation-correcting function of water jet drill.Thereby solved underground construction and implemented the high-pressure water jet key problem in technology such as switching of orientation, boring and the slot of propelling continuously.Adopt short drill pipe, short steel pipes to extend step by step with prior art, carry water under high pressure to come the rig of rock-breaking drilling to compare, have efficiency of construction height, drilling quality height, the reliable advantage of device security, thereby satisfied the requirement of underground construction special operation.
Below will be by embodiment, in conjunction with the accompanying drawings, the present invention is further illustrated.
Description of drawings
Fig. 1 is a structural principle schematic diagram of the present invention;
Fig. 2 is a kind of water jet structural representation (front view) of the directional drilling machine of propelling continuously;
Fig. 3 is the lateral view of Fig. 2;
Fig. 4 is the vertical view of Fig. 2;
Fig. 5 is the structural representation of steel pipe propulsive mechanism;
Fig. 6 is the structural representation of aligning mechanism.
The specific embodiment
As Fig. 1,2,3, shown in 4, the directional drilling machine that a kind of water jet advances continuously, it is by the winding mechanism 2 that is installed on the support 1, be wrapped in the continuous steel pipe 4 of twining on the cylinder 3, pass through gear train by motor 22, the steel pipe propulsive mechanism 5 of sprocket wheel chain drive, be arranged on before the steel pipe propulsive mechanism aligning mechanism 6 that can correct continuous steel pipe, be installed in the water jet drill 7 of continuous steel pipe 4 front ends, and the deviational survey inserting tube 8 that is connected with water jet drill, the direction controller 9 that is connected with the deviational survey inserting tube, the high-pressure hydraulic pump 10 that is communicated with continuous steel pipe, oil pump 11, control correction far away and boring and slot switched system and inclinometer are formed.
Described winding mechanism 2 is by the winding cylinder 3 that is fixed on by central axis 12 on the base 1, the comb mechanism 13 of be connected with base 1, the laying of cylinder 3 circumferencial directions is twined on the edge, the driving mechanism 14 of cylinder 3 and comb mechanism 13 is twined in transmission, fixing and be parallel to the limiting roll 15 that twines drum central axis 12 with base 1, join oil, water dispensing apparatus 30 compositions with water hole 16 that twines drum central axis 12 and oil guiding hole 17 are tightly connected.
Referring to Fig. 5, described steel pipe propulsive mechanism 5 is by the last lower box 18 that is installed in the base upper gear box, be installed in steel pipe on the lower box 18 respectively to rolling friction pulley 19 by bearing, the guide rod 20 of lower box and back-moving spring 21 in the butt joint drive steel pipe by driving gear set the motor 22, the reducer 23 that roll friction pulley 19 are formed.
Referring to Fig. 6, described aligning mechanism 6 is by the casing 24 that is fixed on the base, place the vertical fixing directive wheel 25 and the horizontal fixed directive wheel 26 that are arranged alternately along continuous steel pipe 4 in the casing, be positioned at the casing middle part and form along the adjusting directive wheel 27 that continuous steel pipe 4 is provided with up and down.
The driving mechanism 14 of described winding cylinder 3 is by final drive shaft 28, drives head sprocket, chain 29 transmissions winding drum central axis 12.
Described comb mechanism 13 is made up of guide peg 31, leading screw 32, comb slide block 33, guide peg 31 be arranged in parallel with leading screw 32, comb slide block 33 is driven by leading screw 32 and is slidingly matched with guide peg 31, guide peg 31 is fixed on the barrel support along twining centre of the drum's direction of principal axis, and leading screw 32 is by twining drum central axis 12 by sprocket wheel, chain 34 transmissions.
The steel pipe of described steel pipe propulsive mechanism has 4 to (can also be 6 pairs, 8 pairs, 10 pairs as required) to rolling friction pulley 19, and its periphery is a concave surface along the circumferential direction, and concave surface is through coarse processing, and the radius of curvature of concave surface conforms to the diameter of continuous steel pipe.
Described winding drum central axis 12, a water hole 16 and an oil guiding hole 17 are arranged vertically, water hole 16 is communicated with high-pressure hydraulic pump 10, oil guiding hole 17 is communicated with oil pump 11, one end of water hole 16 and oil guiding hole 17 is connected to the interface that axle head is joined oil, water dispensing apparatus 30, the other end is positioned at the centre of central axis, and its interface is connected to the rear port of continuous steel pipe 4 by water-supply-pipe, is connected to thin oil pipe in the continuous steel pipe by petroleum pipeline.The water hole 16 that is positioned on the central axis 12 is connected to winding cylinder cylindrical with oil transportation hole two flexible pipes of 17 usefulness, by profit mixing tee 39 thin oil pipe is penetrated in the continuous steel pipe.
The open-loop control system that described boring direction controller 9 is made up of oil pump 11, manual three-position four-way valve 35, monitor 40.
The closed-loop control system that described boring direction controller 9 can also be made up of oil pump 11, solenoid operated directional valve 37, programmable controller 38, signal processor 36.
Described correction action is passed through the direction controller Long-distance Control by the deviational survey inserting tube through dip circle; Switch to by the action of preceding shot borehole and to retreat the slot action by the long-range execution of Long-distance Control switched system.
Described continuous steel pipe is a kind of made through welding procedure by the seamless steel pipe of common straightcarbon steel, length steel pipe that can stand to twine repeatedly.
Described water jet drill is a kind of drill bit assembly with boring, slot, deviation-correcting function.
In order to adapt to the operating mode of underground job, two pairs of road wheels 41 are installed in base 1 below of rig; The base of rig is provided with arrangement for adjusting height 42, to adjust drillhole height and boring direction.
The course of work of the present invention is as follows:
At first adjust frame elevation and subsidence regulating device 42, make boring reach design work height and inclination angle; Adjust the adjusting directive wheel 27 of aligning mechanism 6, make continuous steel pipe 4 alignments; Start high-pressure hydraulic pump 10, and enter normal operating conditions, high-pressure hydraulic pump 10 is with water under high pressure, through high-pressure hose, inject the water hole 16 of rig central axis 12, again through profit mixing tee 39, continuous steel pipe 4, inject high-pressure water jet drill bit 7, through cutting injection stream cutting rock ore body.Start continuous steel pipe driving mechanism 5, adjust fltting speed, make normally and creep into; Simultaneously, directional tool operate as normal, testing bore holes deflected condition; According to the hole scattering state of directional tool indication, high-pressure oil pump 11 long-range driving drill bit deviation correction mechanisms are adjusted boring direction; So continue to creep into to projected depth.When drill bit retreated, Long-distance Control made bore state switch to the slot state, and continuous steel pipe driving mechanism 5 is converted to the work of recovery state, slowly regains continuous steel pipe 4, and water under high pressure enters the slot nozzle and implements slot with above-mentioned path, to finishing design slot length.