CN100575656C

CN100575656C - Full-hydraulic multifunctional driller for gas extraction, drainage and discharge

Info

Publication number: CN100575656C
Application number: CN 200610095177
Authority: CN
Inventors: 朱新才; 林顺洪; 李长江
Original assignee: Chongqing University of Science and Technology
Current assignee: Chongqing University of Science and Technology
Priority date: 2006-09-29
Filing date: 2006-09-29
Publication date: 2009-12-30
Anticipated expiration: 2026-09-29
Also published as: CN1924281A

Abstract

A kind of full-hydraulic multifunctional driller for gas extraction, drainage and discharge, frame (2) links to each other with the crossbeam of column frame (8) by leading screw and nut mechanism (10), the crossbeam two ends of column frame (8) are connected on the column by leading screw and nut mechanism (11), support bar (9) constitutes by three sections, interlude is for regulating screw mandrel, other two sections link to each other with interlude by nut, the guide rail cross section of frame (2) is rectangular, be provided with the middle base that is inverted T-shaped between the guide rail of the spacing side plate of planker (3) and frame (2), be respectively arranged with copper coin between the guide rail lateral surface of middle base and frame (2) and the soffit, be provided with the gap adjustment wedge between the spacing side plate of middle base and planker (3).But the present invention's canbe used on line is easy to operate, time saving and energy saving to drill height, operation inclination angle and azimuthal adjustment, and the guiding mechanism rigidity of unit head is strong, and the gap is online adjustable, guiding accuracy height, rig working stability, reliable.

Description

Full-hydraulic multifunctional driller for gas extraction, drainage and discharge

Technical field

The invention belongs to the drilling equipment technical field of soil layer or rock, specifically, relate to a kind of all-hydraulic gas extraction, drainage and discharge driller.

Background technology

Gas extraction, drainage and discharge driller is mainly used in and bores gas exhaust discharge hole, fluid injection fire-fighting hole, coal-bed flooding hole, protrusion-dispelling pressure relief vent, geological prospecting hole or other engineering hole under the coal mine.At present, (cross-sectional area is less than 6.5m to be applied to middle small bore gas drainage under suction tunnel or drill site ², height is less than 2.5m, width is less than 2.8m) all-hydraulic drill mainly form by pumping plant, unit head, frame, column frame, drilling tool and console etc. six are most of.During operation, pumping plant and console are placed on the ground, frame is positioned on the column frame, unit head is spacing on frame by planker, and planker and frame constitute the guiding mechanism of unit head together, the output shaft of unit head front end by oild chuck and water pigtail with transmission of power to drilling rod, before and after between the drilling rod by being threaded, the front end of frame is equipped with hydraulic gripper drilling rod is led and clamping, and what rig adopted is to vertically move, and laterally the mode of installing is carried out bore operation.There is following defective in this rig:

1, when the operation height of rig and inclination angle are adjusted, need disintegrate and assemble between borer frame and the column frame or the coupling part between frame and the support bar, waste time and energy, and can not realize online stepless adjustment, have a strong impact on operating efficiency;

2, the guiding mechanism structure of unit head is too simple, what frame adopted is opening U-lag steel work up, and upper end, U-lag steel both sides outwards vertically is bent to form the guide rail of planker, and the property of guide rail is poor, elastic deformation easily takes place in the use, makes its guiding accuracy poor; The copper coin of guide rail upper and lower is easy to wear, cause intermittently increasing, and can not eliminate, compensate, during rig work vibration big, therefore drilling rod easily fractures, up and down after the copper coin wearing and tearing, can only the off-line replacing, time-consuming, influence operating efficiency;

3, chuck is the normally closed type structure, and disk spring all is in compressive state all the time when stepping up with releasing orientation, and time one is long, and disk spring is easily aging, lost efficacy, thereby can not the reliable grip drilling rod; In actual application, mud can enter by the gap between slip spider and the hollow shaft and be deposited in the end cap of cylinder block, causes disk spring to be blocked by mud, the phenomenon that chuck can not normally unclamp occurs; Chuck and water pigtail are separate, and rig is in creeping into operation process, and drilling rod of every increase all need carry out the work that screw thread is tightened between water swivel axis and newly-increased drilling rod, when getting out, need pull down water and distinguish; Drilling rod and water swivel axis are screwed on when backing out by screw thread, needed manually auxiliaryly, operation is many, and at the bottom of the operating efficiency, labor strength is big, and industrial accident easily takes place during operation;

4, hydraulic gripper is two pawl structures, the housing of clamper is the mounting bracket of slips, it is again the hydraulic jack of piston, the sealing ring of piston lost efficacy easily and caused leakage in the use, slips only acts on the drilling rod from both direction, frictional force between them is less, thereby causes clamping unreliable.It is synchronous that the motion of two slips is difficult to reach, the center and the drill power head center of usually causing clamper two slips to form are inconsistent, cause the drilling rod center of the drilling rod of interpolation and clamp holder clamping inconsistent, the centering difficulty, simultaneously, also the connecting thread between the destructible drilling rod has increased the vibration of rig, even drilling rod is fractureed.

Summary of the invention

The problem to be solved in the present invention provides a kind of height, operation inclination angle and azimuth that can online adjustment rig, and the guiding mechanism good rigidly of unit head, adjustable gaps, and the full-hydraulic multifunctional driller for gas extraction, drainage and discharge that guiding accuracy is high,

For solving the problems of the technologies described above, full-hydraulic multifunctional driller for gas extraction, drainage and discharge of the present invention, has unit head, frame, planker, chuck, the water pigtail, drilling rod, clamper, column frame and support bar, column frame by about two columns and crossbeam constitute, unit head is spacing on the guide rail of frame by planker, frame is positioned on column frame and the support bar, the output of unit head links to each other with drilling rod with the water pigtail by chuck, frame links to each other with the crossbeam of column frame by leading screw and nut mechanism, the crossbeam two ends of column frame are connected on the column by leading screw and nut mechanism, support bar constitutes by three sections, interlude is for regulating screw mandrel, other two sections link to each other with interlude by nut, the guide rail cross section of frame is rectangular, be provided with the middle base that is inverted T-shaped between the spacing side plate of planker and the guide rail of frame, be respectively arranged with copper coin between the guide rail lateral surface of middle base and frame and the soffit, be provided with the gap adjustment wedge of width and short transverse between the spacing side plate of middle base and planker.

Owing on frame, be provided with leading screw and nut mechanism, make on the frame with the tie point of column frame crossbeam can the adjustment of online front and back, change the position and the inclination angle of frame, does not interfere in rig clamper and tunnel when guaranteeing installation and work, and the boring point of clamper on the tunnel is nearest, also drilling direction is had the fine setting effect simultaneously; By the leading screw and nut mechanism at adjusted in concert column frame crossbeam two ends, also can realize above-mentioned purpose.Also can regulate the leading screw and nut mechanism at column frame crossbeam two ends respectively, make crossbeam maintenance level, or make the frame inclination bore inclined to one side hole.The guide rail cross section of frame is rectangular, steel plate rigidity than monolithic is strong, be not easy to take place elastic deformation, add between the spacing side plate of planker and the guide rail middle base is arranged, planker contacts with three faces of guide rail with middle base, make stressed more reasonable between planker and the rack rail, the guiding accuracy of guide rail is higher.Be worn when the copper coin in the rack rail upper and lower and the outside and make planker and frame when the gap appears in width or short transverse, can realize online adjusting by the gap adjustment wedge between the spacing side plate of middle base and planker, make and remain high-precision guiding relation between rack rail and the planker.

The technique effect that the present invention obtains is: but do not need rig is disintegrated and assembles just canbe used on line to drill height, operation inclination angle and azimuthal adjustment, easy to operate, time saving and energy saving, the guiding mechanism rigidity of unit head is strong, the gap is online adjustable, the guiding accuracy height is in rig all the time and carries out bore operation under stable, the safe state.

Description of drawings

Below in conjunction with the drawings and specific embodiments the present invention is described in further detail.

Fig. 1 is a structural representation of the present invention.

Fig. 2 is that A of the present invention is to view.

Fig. 3 is the structural representation of medium power head guiding mechanism of the present invention.

Fig. 4 is that the B of Fig. 3 is to view.

Fig. 5 is the C-C sectional view of Fig. 3.

Fig. 6 is the structural representation that chuck 4 and water pigtail 5 fit together among the present invention.

Fig. 7 is the structural representation of clamper 7 among the present invention.

Fig. 8 is the D-D sectional view of Fig. 7.

The specific embodiment

Extremely shown in Figure 5 as Fig. 1, full-hydraulic multifunctional driller for gas extraction, drainage and discharge of the present invention, have unit head 1, frame 2, planker 3, chuck 4, water pigtail 5, drilling rod 6, clamper 7, column frame 8 and support bar 9, column frame 8 by about two column 8b and crossbeam 8a constitute, unit head 1 is spacing on the guide rail of frame 2 by planker 3, frame 2 is positioned on column frame 8 and the support bar 9, and the output of unit head 1 links to each other with drilling rod 6 with water pigtail 5 by chuck 4.Frame 2 links to each other with the crossbeam 8a of column frame 8 by leading screw and nut mechanism 10, the crossbeam 8a two ends of column frame 8 are connected on the column 8b by leading screw and nut mechanism 11, support bar 9 constitutes by three sections, and interlude 9b is for regulating screw mandrel, and other two sections 9a, 9c link to each other with interlude 9a by nut.The guide rail cross section of frame 2 is rectangular, be provided with the middle base 12 that is inverted T-shaped between the spacing side plate of planker 3 and the guide rail of frame 2, be respectively arranged with copper coin 13,14 between the guide rail lateral surface of middle base 12 and frame 2 and the soffit, be provided with the

gap adjustment wedge

15,16 of width and short transverse between the spacing side plate of middle base 12 and planker 3.

As can be seen from Figure 6: chuck 4 is made of cylinder body 17, piston 18, slip spider 19, slips 20 and hollow shaft 21, two independent

oil pressure chambeies

22,23 about being formed with between piston 18 and cylinder body 17 inwalls, cylinder body 17 is provided with two

hydraulic fluid ports

24,25 and communicates with these two

oil pressure chambeies

22,23 respectively, and two

bearings

26,27 contacted with piston 18 about slip spider 19 passed through respectively in the axial direction.Because two independent

oil pressure chambeies

22,23 about having between piston 18 and cylinder body 17 inwalls, piston 18 can be realized bidirectional-movement under the oil pressure effect, when piston 18 moves right, promoting slip spider 19 also moves right, under the ramp effect between slip spider 19 and the slips 20, make radially motion inwards of slips 20, thereby clamp drilling rod or water pigtail; When piston 18 during to left movement, slip spider 19 also is moved to the left, and slip spider 19 drives slips 20 and unclamps.Compare with the chuck of traditional normally closed type structure, the clamping of chuck and unclamp that all to adopt hydraulic pressure be power, this easily lost efficacy and parts of quality problems, the therefore stable performance of whole chuck, reliable operation took place to have saved disk spring.

Water pigtail 5 is made of housing unit 28 and water swivel axis 29 in Fig. 6, water swivel axis 29 is a tubular construction, water swivel axis 29 is fixedlyed connected with the hollow shaft 21 of chuck 4, hollow shaft 21 is provided with water stream channel 21a and communicates with intake tunnel 29a on the water swivel axis 29, in hollow shaft 21, be provided with black box, and the sealing assembly is positioned at the rear of slips 20, black box is provided with duct 30, and this duct 30 makes the water stream channel 21a on the chuck hollow shaft 21 communicate with the cavity of described black box front side in the chuck hollow shaft 21.Compare with traditional structure, the drilling rod afterbody directly stretches in the chuck hollow shaft 21 during use, when rig creeps into operation chuck hollow shaft 21 by slips 20 directly with transmission of power to drilling rod, and do not need intermediate transfer by water swivel axis 29.Therefore, when needs increase drilling rod, do not need dismounting water pigtail, directly unclamp slips 20, carry out the complete operation quickly and easily that just is threaded between the drilling rod again; In like manner, when rig gets out operation, do not need to carry out the disassembling section of water pigtail yet, make and creep into and get out operation and simplified, saved the artificial auxiliary operation that screwing on of drilling rod and water swivel axis backed out, improve operating efficiency, reduced working strength of workers, reduced the industrial accident odds.Therefore and more compact structure whole rig has shortened the length of complete machine.

Cylinder body 17 left end caps that Fig. 6 illustrates chuck 4 are provided with piston guide pin 31, and an end of this piston guide pin 31 stretches among the pilot hole 18a of piston 18.Piston 18 is along guide finger 31 move left and right, but can not rotate.Because slip spider 19 contacts by bearing in the axial direction with piston 18, adopt guide finger 31 can avoid rotating with slip spider 19 at the frictional force effect lower piston 18 of bearing, thus the application life of improving seal between piston 18 and cylinder body 17 inwalls.

Fig. 7 illustrates on the base 32 of clamper 7 triangular supports 33 is installed, and three slips 34 that are circularly and evenly distributed are installed on support 33, and all independently hydraulic jack 35 is coupled to there being one for each slips 34.Adopt three slips 34 to be used on the drilling rod at the masterpiece of circumferencial direction with identical size, the frictional force that 34 pairs of drilling rods of slips produce is bigger, and the geometric center of three slips 34 retaining parts of easier assurance overlaps with the drill power head center, reduces the vibration of rig, avoids drilling rod to be fractureed.The hydraulic jack 35 that three slips 34 are used dependable performance respectively independently guaranteed the constant of clamping force, thereby the power of guaranteeing to act in the use on the drilling rod can reach design load all the time as power source.

Fig. 8 illustrates between the base 32 of clamper 7 and the support 33 and is provided with wedge 36, and the journal stirrup that stretches out from wedge 36 1 ends is connected with by nut 37 regulates bolt 38, regulates an end of bolt 38 and matches with screwed hole on the base 32.Bolt 38 is regulated in rotation, by the ramp effect between wedge 36 and support 33 bottoms or the base, just can play the effect of regulating clamper 7 centre-heights, to adapt to the variation at drilling rod center in the use.

As can be seen from Figure 4: the upper flat plate of planker 3 is medianly zygomorphic respectively to be provided with two spacing side plates, thereby under the prerequisite of guaranteed strength, reduce the contact area of planker 3 and frame 2 guide rails, easier realization is led freely, and can realize the independent adjustment at 3 four angles of planker as required.

39 is the tunnel among Fig. 1,40 rig tail supports, the 41st, tunnel vertical center line, the 42nd, thrust oil Cylinder.

Claims

1, a kind of full-hydraulic multifunctional driller for gas extraction, drainage and discharge, comprise unit head (1), frame (2), planker (3), chuck (4), water pigtail (5), drilling rod (6), clamper (7), column frame (8) and support bar (9), column frame (8) by about two columns (8b) and crossbeam (8a) constitute, unit head (1) is spacing on the guide rail of frame (2) by planker (3), frame (2) is positioned on column frame (8) and the support bar (9), the output of unit head (1) links to each other with drilling rod (6) with water pigtail (5) by chuck (4), it is characterized in that:

A, described frame (2) link to each other with the crossbeam (8a) of column frame (8) by leading screw and nut mechanism (10), crossbeam (8a) two ends of column frame (8) are connected on the column (8b) by leading screw and nut mechanism (11), support bar (9) constitutes by three sections, interlude (9b) is for regulating screw mandrel, and other two sections (9a, 9c) links to each other with interlude (9a) by nut;

The guide rail cross section of B, described frame (2) is rectangular, be provided with the middle base (12) that is inverted T-shaped between the guide rail of the spacing side plate of planker (3) and frame (2), be respectively arranged with copper coin (13,14) between the guide rail lateral surface of middle base (12) and frame (2) and the soffit, be provided with the gap adjustment wedge (15,16) of width and short transverse between the spacing side plate of middle base (12) and planker (3).

2, full-hydraulic multifunctional driller for gas extraction, drainage and discharge according to claim 1, it is characterized in that: described chuck (4) is made of cylinder body (17), piston (18), slip spider (19), slips (20) and hollow shaft (21), two independent oil pressure chambeies (22,23) about being formed with between piston (18) and cylinder body (17) inwall, cylinder body (17) is provided with two hydraulic fluid ports (24,25) and communicates with these two oil pressure chambeies (22,23) respectively, and two bearings (26,27) contacted with piston (18) about slip spider (19) passed through respectively in the axial direction; Water pigtail (5) is made of housing unit (28) and water swivel axis (29), water swivel axis (29) is a tubular construction, water swivel axis (29) is fixedlyed connected with the hollow shaft (21) of chuck (4), hollow shaft (21) is provided with water stream channel (21a) and communicates with intake tunnel (29a) on the water swivel axis (29), in hollow shaft (21), be provided with black box, and the sealing assembly is positioned at the rear of slips (20), described black box is provided with duct (30), and this duct (30) make the water stream channel (21a) on the chuck hollow shaft (21) communicate with the cavity of described black box front side in the chuck hollow shaft (21).

3, full-hydraulic multifunctional driller for gas extraction, drainage and discharge according to claim 2, it is characterized in that: cylinder body (17) left end cap of described chuck (4) is provided with piston guide pin (31), and an end of this piston guide pin (31) stretches in the pilot hole (18a) of piston (18).

4, full-hydraulic multifunctional driller for gas extraction, drainage and discharge according to claim 1, it is characterized in that: on the base (32) of described clamper (7) triangular supports (33) is installed, three slips (34) that are circularly and evenly distributed are installed on support (33), and all independently hydraulic jack (35) is coupled to there being one for each slips (34).

5, full-hydraulic multifunctional driller for gas extraction, drainage and discharge according to claim 4, it is characterized in that: be provided with wedge (36) between the base (32) of described clamper (7) and the support (33), the journal stirrup that stretches out from wedge (36) one ends is connected with adjusting bolt (38) by nut (37), and an end of adjusting bolt (38) matches with the screwed hole on the base (32).

6, full-hydraulic multifunctional driller for gas extraction, drainage and discharge according to claim 1 is characterized in that: the upper flat plate of described planker (3) is medianly zygomorphic respectively to be provided with two spacing side plates.