CN104832080B - A kind of light-duty all-hydraulic drill of coal mine down-hole drilling - Google Patents
A kind of light-duty all-hydraulic drill of coal mine down-hole drilling Download PDFInfo
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- CN104832080B CN104832080B CN201510201861.0A CN201510201861A CN104832080B CN 104832080 B CN104832080 B CN 104832080B CN 201510201861 A CN201510201861 A CN 201510201861A CN 104832080 B CN104832080 B CN 104832080B
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- hydraulic cylinder
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- pigtail
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- 238000005553 drilling Methods 0.000 title claims abstract description 134
- 239000003245 coal Substances 0.000 title claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 170
- 230000006835 compression Effects 0.000 claims abstract description 21
- 238000007906 compression Methods 0.000 claims abstract description 21
- 230000000694 effects Effects 0.000 claims description 20
- 239000012535 impurity Substances 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 11
- 238000003466 welding Methods 0.000 claims description 11
- 230000001105 regulatory effect Effects 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims description 7
- 239000007787 solid Substances 0.000 claims description 4
- 241000397426 Centroberyx lineatus Species 0.000 claims description 3
- 230000001737 promoting effect Effects 0.000 claims description 3
- 238000002955 isolation Methods 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000010276 construction Methods 0.000 abstract description 5
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 12
- 230000008859 change Effects 0.000 description 10
- 239000007788 liquid Substances 0.000 description 8
- 239000003921 oil Substances 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- 230000006378 damage Effects 0.000 description 6
- 239000000446 fuel Substances 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 241001074085 Scophthalmus aquosus Species 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 3
- 239000003818 cinder Substances 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000003467 diminishing effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
- E21B3/00—Rotary drilling
-
- 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
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/10—Slips; Spiders ; Catching devices
-
- 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
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/18—Connecting or disconnecting drill bit and drilling pipe
-
- 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
- E21B3/00—Rotary drilling
- E21B3/02—Surface drives for rotary drilling
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a kind of light-duty all-hydraulic drill of coal mine down-hole drilling, including frame, drilling rod, water pigtail, guide rail, propelling hydraulic cylinder, hydraulic gripper and drill power head, hydraulic gripper includes clamper base, support base, clamping hydraulic cylinder and clamper slips；Water pigtail includes water pigtail housing, water swivel axis, water pigtail hollow axle, two wear rings, shading ring, drive end bearing bracket, rear end cap and wear-resistant seal circle, and drill power head includes deceleration box, link, gear shaft, hollow multidiameter, hydraulic motor, spring mounting seat, spring retainer seat, nd face back-up ring, gear, disk spring group, unit head slips and compression hydraulic cylinder.Present configuration is compact, realize convenient and low cost, reduce energy consumption, improve power transmission efficiency, reliable and stable to the clamping force of drilling rod, the service life of wear-resistant seal circle and water swivel axis can be extended, decrease replacing trouble, ensure that construction speed and safety in production, reduce the vibration of rig, it is to avoid drilling rod is broken off.
Description
Technical field
The invention belongs to drilling rig technique field is and in particular to a kind of light-duty all-hydraulic drill of coal mine down-hole drilling.
Background technology
With increasingly apparent, coal resources in China in addition the features such as the exploitation further of coal in China, balk, preservation depth
Distributional region diversity, leads to gas exhaust problem to become increasingly conspicuous.Gas drainage drilling rig is mainly used in underground coal mine brill gas and takes out
The down-hole holes such as discharge orifice, protrusion-dispelling pressure relief vent, coal-bed flooding hole.At present, it is applied to the full liquid in middle small bore gas drainage under suction tunnel
Drilol press is mainly made up of pumping plant, main frame, column frame and bench board etc. four major part, and wherein main frame includes unit head, supporting plate
Device, frame, water pigtail, hydraulic gripper etc..During operation, pumping plant, bench board and column frame are placed on the ground, and frame is fixed
On column frame, unit head pass through supporting plate spacing in frame, supporting plate constitutes the support guide machine of unit head together with frame
Structure, the output shaft of unit head is connected with hydraulic pressure pipe slips and water pigtail and transfers power on drilling rod, by screw thread come even between drilling rod
Connect, hydraulic gripper is installed in the front end of frame, drilling rod is clamped and guides, rig passes through to vertically move to complete to creep into and makees
Industry.Also there is following defect and deficiency in this rig：
1st, the main frame complicated integral structure of rig, is not easy to install；Reliability is low, and maintenance load is big, impact work effect
Rate；Volume is big, and weight is big, not readily portable and carrying；Waste time and energy when rig being disintegrated and assembling, have a strong impact on work
Efficiency；
2nd, drill power head part position-limit mechanism structure is excessively complicated, by supporting plate by spacing for the unit head guide rail in frame
On, it is provided with the parts such as middle base, copper coin between supporting plate and guide rail simultaneously again, not only increased the weight of whole machine, and affect
The positioning precision of boring, reduces the drilling efficiency of rig；Guide rail structure is the U-lag steel of opening to the right, and it is arranged symmetrically
In frame, the shortcoming of this structure is easily elastic deformation to occur in use, so that guiding accuracy is deteriorated, increased rig
Vibration, or even fractureing of drilling rod can be caused, cause the accident, have impact on work efficiency；
3rd, rig is to complete drilling task by propelling cylinder and unit head collaborative work, and propelling cylinder piston rod is fixed
On supporting plate, hydraulic thrust acts on drilling rod by supporting plate, and this structure leads to distance between hydraulic thrust and boring resistance excessive,
Thus produce great role force couple role on supporting plate, lead to supporting plate to be resiliently deflected deformation, and then affect leading of unit head
To precision, or even drilling rod can be fractureed；The power transmission mechanism complex structure of rig, power input shaft is by bonded in slips
On hollow axle, slips hollow axle is transferred power on the drilling rod in slips hollow axle by slips, and power transmission efficiency is low, whole
Captain's degree is longer；
4th, the all-hydraulic clamp system complex structure of slips, sealing requirements are high, and in real work, sealing ring was creeping into
It is easily caused inefficacy, thus diminishing to the clamping force of drilling rod under the strong vibration effect of journey；And, clamping slips does not lubricate and outward
Dew, in elevation angle operation, the impurity such as mud, coal dust can be stuck in the shifting chute of slips rig, lead to the clamping of drilling rod, unclamp difficulty
To realize, affect work efficiency；
5th, slips is completely enclosed formula structure, and inside slips, power head output shaft passes through the threaded of rigidity and will move
Power is delivered to drilling rod from unit head, in drilling process, because misoperation or geological transformation can produce great moment of torsion and lead to
Threaded gluing is so that drilling rod is not easy to remove, or even so that output shaft is twisted off in threaded connection place, is stuck in inside slips and is difficult to take
Remove；
6th, due to the rotation of water swivel axis high speed and the vibration of radial direction, frequently result in the sealing ring mill between housing and water swivel axis
Damage or conquassation, sealing ring service life is short, needing frequently to change, if changed not in time, leak can be led to, and easily cause right
The damage of water swivel axis, and after water swivel axis damage, change trouble, high cost, change sealing ring and water swivel axis impact construction speed, and
Bring impact to the safety in production of user.
7th, hydraulic gripper is arranged and is welded together in equilateral triangle by three blocks of steel plates and constitutes, in order to ensure drilling
Precision, what three blocks of steel plates must be strict is mutually 60 °, but in actual welding process it is difficult to ensure that；It is additionally, since whole
Frame is welding structure, and long-time vibration and hydraulic pressure counteracting force can lead to weld to ftracture；In addition, being affected by welding support,
Change is freeed in the cover plate guiding hole site being fixed on support；Under factors above effect, cause the slips center of clamper with
Drill power head center is inconsistent, and the drilling rod of interpolation is inconsistent with the drilling rod center of clamp holder clamping, leads to centering difficult, drilling rod
Between threaded destruction, the vibration of rig increases, or even drilling rod can be made to fracture.
Content of the invention
The technical problem to be solved is, for above-mentioned deficiency of the prior art, to provide a kind of underground coal mine
Boring light-duty all-hydraulic drill, its compact conformation, novel in design reasonable, realize convenient and low cost, reduce energy consumption, improve
Power transmission efficiency, reliable and stable to the clamping force of drilling rod, the service life of wear-resistant seal circle and water swivel axis can be extended, subtract
Lack replacing trouble it is ensured that construction speed and safety in production, reduce the vibration of rig, it is to avoid drilling rod is broken off, clamping
The reliability of drilling rod is high, and using effect is good, is easy to promote the use of.
For solving above-mentioned technical problem, the technical solution used in the present invention is：A kind of coal mine down-hole drilling is with light-duty full liquid
Drilol press it is characterised in that：Including frame, drilling rod and water pigtail, and it is fixedly connected on the guide rail of frame top, propelling hydraulic cylinder
And hydraulic gripper, described guide rail slidably connects drill power head；Described drilling rod leads to after passing through hydraulic gripper and water pigtail
Cross the water pigtail being connected on drill power head to be connected with drill power head；
Described hydraulic gripper is included the clamper base being fixedly connected with frame and is fixedly connected on clamper base top
The support base in portion, described support base is integral type structure, has and pass through for drilling rod at the geometric center position of described support base
Centre bore, the top surface of described support base, left surface with the clamping liquid being connected with described centre bore is respectively had on right flank
Cylinder pressure mounting groove, three described clamping hydraulic cylinder mounting grooves are in that equilateral triangle is laid, each described clamping hydraulic cylinder mounting groove
Middle position be fixedly connected with clamping hydraulic cylinder, the piston rod of each described clamping hydraulic cylinder is all towards clamping hydraulic cylinder
The geometric center of mounting groove is laid, and the piston rod of each described clamping hydraulic cylinder has been fixedly connected with positioned at clamping hydraulic cylinder peace
Clamper slips in tankage and for holding drill pipe, three clamper slips are uniformly laid in around drilling rod, described support
Seat is located at the position of described centre bore bottom and has impurity discharge groove；
Described water pigtail includes water pigtail housing and is arranged on the water swivel axis of water pigtail enclosure interior, the threaded one end of described water swivel axis
Be connected with the water pigtail hollow axle stretching out water pigtail hull outside, at the axial centre position of described water pigtail hollow axle and water swivel axis axle
It is provided with, to center position, the drilling rod hole passing through for drilling rod, described water pigtail hollow axle uniformly has multiple dynamic for accommodating
The unit head slips mounting groove of power head slips；Be provided between described water swivel axis and water pigtail housing spaced two wear-resisting
Ring, is provided with the shading ring with water swivel axis interference fit between two wear rings, the front end of described water pigtail housing is fixedly connected with
Drive end bearing bracket, the rear end of described water pigtail housing is fixedly connected with rear end cap, between described drive end bearing bracket and water swivel axis and rear end cap with
It is provided with wear-resistant seal circle between water swivel axis, in described water pigtail hollow axle, be provided with the boss for jacking drilling rod afterbody, institute
State and boss intake tunnel be provided with boss, described water pigtail hollow axle is provided be staggered with multiple described slips mounting grooves and
The hollow axle water channel being connected with boss intake tunnel, described water swivel axis are provided with the water swivel axis being connected with hollow axle water channel
Intake tunnel, described water pigtail housing is connected with water supply connector, on described shading ring at the position just to water swivel axis intake tunnel
It is provided with the shading ring water stream channel for connecting water swivel axis intake tunnel and water supply connector；
Described drill power head include the deceleration box being connected with slide and be arranged on deceleration box bottom and with push away
The link that the piston rod of inlet hydraulic cylinder is fixedly connected, and it is arranged on the gear shaft within deceleration box and water supply pigtail hollow axle
The hollow multidiameter penetrating, described deceleration box is provided with the hydraulic motor that output shaft is fixedly connected with gear shaft, described sky
Spring mounting seat, spring retainer seat, nd face back-up ring and the gear being meshed with gear shaft, described spring are set with heart multidiameter
Limit base is located at the both sides of gear respectively with nd face back-up ring and is all fixedly connected with gear, and described spring mounting seat is set with one
Vertical compression is in the disk spring group of compressive state, and the two ends of described disk spring group are respectively against on spring retainer seat and spring
In the projection of mounting seat end, described nd face back-up ring abuts against the shaft shoulder of hollow multidiameter under the elastic force effect of disk spring group
On, it is provided with the annular of the radial position for limiting the water pigtail hollow axle penetrating in hollow multidiameter in described hollow multidiameter
Boss, is circumferentially uniformly laid with multiple unit head slips stopper slots in the inner chamber of described gear, each described unit head slips
Unit head slips for clamping water pigtail hollow axle and drilling rod is mounted on stopper slot, described deceleration box is provided with piston
Bar is arranged towards gear and for promoting gear so that unit head slips clamps the compression hydraulic cylinder of water pigtail hollow axle and drilling rod.
A kind of above-mentioned coal mine down-hole drilling with light-duty all-hydraulic drill it is characterised in that：Described frame is by three side by side
The cube shaped welding case being respectively provided with rectangular enclosure structure of setting is constituted, and is provided with vibration damper plate between described guide rail and frame,
Described guide rail, vibration damper plate are fixedly connected by screw bolt and nut with frame；It is provided between described clamper base and frame and prop up
Bracer, described clamper base, support block are fixedly connected by screw bolt and nut with frame, and described clamper base is provided with
Installation screwed hole for installation bolt；Described link is fixedly connected by pin with the piston rod of propelling hydraulic cylinder, described
Pin-and-hole for installing pin is provided with link, the upper cover of piston rod of described propelling hydraulic cylinder has Telescopic protection hood, institute
State and bearing is fixedly connected with frame, the cylinder body of described propelling hydraulic cylinder is fixedly connected with bearing by pin；Described guide rail
Quantity is two and two guide rail interval settings, and two described guide rails are provided with V-shaped groove on relative side side, described subtracts
The bottom of fast casing is located between two guide rails and the two bottom sides of deceleration box are provided with and are slidably connected in described V-shaped groove
V-arrangement is raised.
A kind of above-mentioned coal mine down-hole drilling with light-duty all-hydraulic drill it is characterised in that：Described clamper base top
It is provided with wedge and support base bottom between, the side of described wedge is stretched out clamper base exterior and connected by nut
There is regulating bolt, the side of described clamper base is provided with the connection screw thread hole for threaded regulating bolt.
A kind of above-mentioned coal mine down-hole drilling with light-duty all-hydraulic drill it is characterised in that：Described support base passes through bolt
It is fixedly connected on clamper base top, described clamping hydraulic cylinder is fixedly connected in clamping hydraulic cylinder mounting groove by screw
Between at position.
A kind of above-mentioned coal mine down-hole drilling with light-duty all-hydraulic drill it is characterised in that：Described clamper slips includes
The clamper slips body of rectangular shape and be arranged on clamper slips mounting groove and slip on clamper slips body
Portion, described slip portion is arcwall face towards the one side of drilling rod, and the radius of described arcwall face is equal to the radius of drilling rod；Described folder
Holder slips is fixedly connected with the piston rod of described clamping hydraulic cylinder by the screw being installed in clamper slips mounting groove.
A kind of above-mentioned coal mine down-hole drilling with light-duty all-hydraulic drill it is characterised in that：Described water pigtail hollow axle and water
Pigtail axle is fastened by locking nut, and the forward end of described water swivel axis is connected with for limiting drive end bearing bracket card axially movable
Spring, described drive end bearing bracket is fixedly connected with the front end of water pigtail housing by bolt, and described rear end cap passes through bolt and water pigtail housing
Rear end is fixedly connected.
A kind of above-mentioned coal mine down-hole drilling with light-duty all-hydraulic drill it is characterised in that：The outer ring of described shading ring is
Open circle, the inner ring of described shading ring is solid rim；Described shading ring water stream channel include being formed by the outer ring of shading ring with
The annular flow channel that water supply connector is connected with the inner ring being arranged on shading ring and be used for connecting annular flow channel and water
The limbers of pigtail axle intake tunnel.
A kind of above-mentioned coal mine down-hole drilling with light-duty all-hydraulic drill it is characterised in that：Described unit head slips is spacing
The inner bottom surface of groove is inclined-plane, described gear has on the inner bottom surface lead to unit head slips stopper slot and is used for as unit head card
The oil duct of watt oil addition；The quantity of described unit head slips stopper slot is four, the accordingly quantity of described unit head slips
It is four with the quantity of unit head slips mounting groove.
A kind of above-mentioned coal mine down-hole drilling with light-duty all-hydraulic drill it is characterised in that：Described unit head slips is by moving
Power head slips body, pad and screw composition, the external profile of described unit head slips be shaped as wedge shape, described unit head slips body
Top transverse section be shaped as swallow-tail form, described pad is fixedly connected on the bottom surface of unit head slips body by screw；Described
Pad bottom surface be shaped as circular arc, the bottom surface of described pad is provided with reticulate pattern.
A kind of above-mentioned coal mine down-hole drilling with light-duty all-hydraulic drill it is characterised in that：Peace inside described deceleration box
Equipped with for installing two gear axle bearings supporting gear shaft and two hollow ladders for installing the hollow multidiameter of support
Axle bearing；The output shaft of described hydraulic motor is fixedly connected with gear shaft by flat key, described spring retainer seat and hollow ladder
It is provided with sealing ring between axle and between nd face back-up ring and hollow multidiameter；Described spring retainer seat and nd face back-up ring are all logical
Cross bolt to be fixedly connected with gear, the quantity of described compression hydraulic cylinder is two.
The present invention compared with prior art has advantages below：
1st, the compact conformation of the present invention, small volume, lightweight, novel in design reasonable, realize convenient and low cost.
2nd, the support base of hydraulic gripper of the present invention adopts integral structure, with prior art in using three blocks of steel plates be in etc.
Side triangular arrangement simultaneously welds together the hydraulic gripper of composition and compares, and improves the centering leading to due to welding structure difficult
Problem and the problem of Cracking Failure, extend the service life of this hydraulic gripper, reduce the vibration of rig, it is to avoid drilling rod
It is broken off.
3rd, the hydraulic gripper in the present invention, by opening centre bore at support base geometric center position, serves to drilling rod
Support and guide effect.
4th, the hydraulic gripper in the present invention passes through to arrange impurity discharge groove, can make the impurity such as water, cinder along impurity
Discharge groove to drain, in order to avoid being stuck in center in the hole.
5th, the hydraulic gripper in the present invention passes through to rotate regulating bolt, is made by the inclined-plane between wedge and support base
With the change at drilling rod center during using it becomes possible to adjust the centre-height of this hydraulic gripper, can be well adapted for.
6th, when the hydraulic gripper in the present invention uses, three slips act on brill in circumferencial direction with the power of formed objects
On bar, the geometric center of drilling rod is made to overlap with the geometric center of drill power head, the arcwall face structure in slip portion is to drilling rod
Produce very big frictional force, clamping is more reliable.
7th, three slips of the hydraulic gripper in the present invention separately use the clamping hydraulic cylinder of dependable performance as dynamic
Power source it is ensured that clamping force constant, the power acting on during ensuring that use on drilling rod consistently achieves desired value.
8th, two wear rings in water pigtail of the present invention play the effect of sliding bearing, it can be avoided that rig work when drive end bearing bracket and
Rear end cap radial impact produces to wear-resistant seal circle and destroys, and can extend the service life of wear-resistant seal circle.
9th, the present invention passes through to arrange jump ring, can limit drive end bearing bracket moving and beat vertically, contributes to extending wear-resisting
Sealing ring and the service life of two wear rings.
10th, in water pigtail of the present invention, the structure of shading ring ensure that being abutted against of water swivel axis intake tunnel and water supply connector
Logical.
11st, the present invention solves the infringement to wear-resistant seal circle for the radial vibration, will not due to the rotation of water swivel axis high speed and
The vibration of radial direction, and often result in wear-resistant seal circle abrasion or conquassation phenomenon occur, need not frequently change wear-resistant seal circle and
Water swivel axis, decrease replacing trouble, reduce replacement cost it is ensured that construction speed is it is ensured that keep the safety in production.
12nd, the unit head slips in drill power head of the present invention is arranged in unit head slips stopper slot, and opens on gear
Have on the inner bottom surface lead to unit head slips stopper slot and for the oil duct for slips oil addition, improve in prior art
Unit head slips exposes phenomenon easily stuck outside, is favorably improved the work efficiency of rig；And by arranging oil duct, Neng Gouji
When ground be unit head slips oil addition, make unit head slips be constantly in lubricating status, can reduce and unclamp needed for drilling rod
Active force, has delayed the fatigue failure phase of disk spring group to a certain extent, indirectly extends the use longevity of disk spring group
Life.
13rd, the drill power head of the present invention passes through to arrange annular boss in hollow multidiameter, limits water pigtail hollow axle
Radial position, it is to avoid friction damage water pigtail hollow axle between water pigtail hollow axle and its locking nut.
14th, the present invention, compared with clamping and unclamp the technical scheme of drilling rod only with hydraulic power in prior art, passes through
The energy of disk spring group storage clamps hollow axle and the drilling rod of water pigtail, saves the energy needed for clamping water pigtail hollow axle and drilling rod
Consumption, and be not in the phenomenon that the clamping force to drilling rod diminishes.
15th, power can be directly delivered to drilling rod by the unit head slips in drill power head of the present invention from gear, moves
Power from power head need not be delivered to drilling rod by the threaded of rigidity by power head output shaft again, simplify in prior art and bore
The power transmission mechanism of machine, improves power transmission efficiency, and because unit head slips is arranged on unit head slips stopper slot
Inside clamp or unclamp drilling rod, the therefore convenient disassembly of drilling rod, be not in that power head output shaft twists off card in threaded connection place
It is difficult to the phenomenon taken out in unit head slips, meanwhile, it is capable to make complete machine structure compacter, shorten whole length.
16th, the present invention's is practical, and using effect is good, is easy to promote the use of.
In sum, present configuration is compact, novel in design reasonable, realizes convenient and low cost, reduces energy consumption, improves
Power transmission efficiency, reliable and stable to the clamping force of drilling rod, the service life of wear-resistant seal circle and water swivel axis can be extended, subtract
Lack replacing trouble it is ensured that construction speed and safety in production, reduce the vibration of rig, it is to avoid drilling rod is broken off, clamping
The reliability of drilling rod is high, and using effect is good, is easy to promote the use of.
Below by drawings and Examples, technical scheme is described in further detail.
Brief description
Fig. 1 is the overall structure diagram of the present invention.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the A-A sectional view of Fig. 1.
Fig. 4 is the front view of hydraulic gripper of the present invention.
Fig. 5 is the B-B sectional view of Fig. 4.
Fig. 6 is the annexation schematic diagram of clamper base of the present invention and support base.
Fig. 7 is the structural representation of water pigtail of the present invention.
Fig. 8 is the structural representation of drill power head of the present invention.
Fig. 9 is the C-C sectional view of Fig. 8.
Figure 10 is the left view of Fig. 8.
Figure 11 is the structural representation of gear of the present invention.
Figure 12 is the right view of Figure 11.
Figure 13 is the front view of clamper slips of the present invention.
Figure 14 is the D-D sectional view of Figure 13.
Figure 15 is the E direction view of Figure 13.
Figure 16 is the structural representation of shading ring of the present invention.
Figure 17 is the front view of unit head slips of the present invention.
Figure 18 is the F-F sectional view of Figure 17.
Figure 19 is the G direction view of Figure 17.
Description of reference numerals:
1 drill power head；2 water pigtails；3 drilling rods；
4 hydraulic grippers；5 propelling hydraulic cylinders；6 frames；
7 vibration damper plates；8 guide rails；9 compression hydraulic cylinder；
10 gears；10-1 oil duct；11 unit head slips；
11-1 unit head slips body；11-2 pad；11-3 the 3rd screw；
12 spring retainer seats；13 disk spring groups；14 spring mounting seats；
15 hollow multidiameters；15-1 annular boss；16 unit head slips stopper slots；
17 first nuts；18 clamping hydraulic cylinders；19 support bases；
20 support blocks；21 clamper bases；22 clamper slips；
22-1 clamper slips body；22-2 clamper slips mounting groove；22-3 slip portion；
23 pin-and-holes；24 second screws；25 water pigtail hollow axles；
25-1 hollow axle water channel；26 water swivel axis；27 locking nuts；
28 wear-resistant seal circles；29 wear rings；30 drive end bearing brackets；
31 rear end caps；32 shading rings；32-1 annular flow channel；
32-2 limbers；33 water supply connectors；34 water pigtail housings；
34-1 water swivel axis intake tunnel；35 boss；35-1 boss intake tunnel；
36 hydraulic motors；37 deceleration box；38 gear shafts；
39 nd face back-up rings；40 Telescopic protection hoods；41 wedges；
42 the 3rd nuts；43 regulating bolts；44 second nuts；
45 first pins；46 links；47 second pins；
48 bearings；49 clamping hydraulic cylinder mounting grooves；50 impurity discharge groove；
51 the 3rd bolts；52 second bolts；53 first bolts；
54 first screws；55 jump rings；56 the 4th bolts；
57 the 5th bolts；58 gear axle bearings；59 hollow ladder axle bearings；
60 sealing rings；61 installation screwed holes.
Specific embodiment
As shown in Figure 1, Figure 2 and Figure 3, the present invention includes frame 6, drilling rod 3 and water pigtail 2, and is fixedly connected on frame 6 and pushes up
The guide rail 8 in portion, propelling hydraulic cylinder 5 and hydraulic gripper 4, described guide rail 8 slidably connects drill power head 1；Described drilling rod 3
It is connected with drill power head 1 by the water pigtail 2 being connected on drill power head 1 through hydraulic gripper 4 with after water pigtail 2；
As shown in Figure 4, Figure 5 and Figure 6, described hydraulic gripper 4 include the clamper base 21 being fixedly connected with frame 6 and
It is fixedly connected on the support base 19 at clamper base 21 top, described support base 19 is integral type structure, described support base 19
Have the centre bore passing through for drilling rod 3 at geometric center position, the top surface of described support base 19, left surface and right flank are respectively opened
There is a clamping hydraulic cylinder mounting groove 49 being connected with described centre bore, three described clamping hydraulic cylinder mounting grooves 49 are in equilateral
Triangle is laid, and the middle position of each described clamping hydraulic cylinder mounting groove 49 has been fixedly connected with clamping hydraulic cylinder 18, often
The piston rod of individual described clamping hydraulic cylinder 18 is all laid towards the geometric center of clamping hydraulic cylinder mounting groove 49, each described clamping
It is fixedly connected with the piston rod of hydraulic cylinder 18 in clamping hydraulic cylinder mounting groove 49 and be used for the clamper of holding drill pipe 3
Slips 22, three clamper slips 22 are uniformly laid in drilling rod 3 around, and described support base 19 is located at described centre bore bottom
Have impurity at position and discharge groove 50；Because support base 19 adopts integral structure, therefore adopt three pieces with prior art
The hydraulic gripper that composition was arranged and welded together to steel plate in equilateral triangle compares, and improves and is led to due to welding structure
Centering difficult problem and the problem of Cracking Failure, extend the service life of this hydraulic gripper, reduce the vibration of rig, keep away
Exempt from drilling rod 3 to be broken off.By opening centre bore at support base 19 geometric center position, drilling rod 3 is served with support and guides
Effect.Discharge groove 50 by arranging impurity, the impurity such as water, cinder can be made to discharge groove 50 along impurity and drain, in order to avoid being stuck in
Described center in the hole.
As shown in fig. 7, described water pigtail 2 includes water pigtail housing 34 and the water swivel axis 26 being arranged within water pigtail housing 34, institute
The threaded one end stating water swivel axis 26 is connected with the water pigtail hollow axle 25 stretching out outside water pigtail housing 34, described water pigtail hollow axle 25
It is provided with the drilling rod hole passing through for drilling rod 3, described water pigtail at axial centre position and at the axial centre position of water swivel axis 26
Multiple unit head slips mounting grooves for accommodating unit head slips 11 are uniformly had on hollow axle 25；Described water swivel axis 26 and water
It is provided with spaced two wear rings 29 between pigtail housing 34, be provided between two wear rings 29 and water swivel axis 26 interference
The shading ring 32 of cooperation, the front end of described water pigtail housing 34 is fixedly connected with drive end bearing bracket 30, and the rear end of described water pigtail housing 34 is solid
Surely it is connected with rear end cap 31, be provided between described drive end bearing bracket 30 and water swivel axis 26 and between rear end cap 31 and water swivel axis 26
Wear-resistant seal circle 28, is provided with the boss 35 for jacking drilling rod 3 afterbody, described boss 35 sets in described water pigtail hollow axle 25
Be equipped with boss intake tunnel 35-1, described water pigtail hollow axle 25 is provided be staggered with multiple described slips mounting grooves and with convex
The hollow axle water channel 25-1 that platform intake tunnel 35-1 is connected, described water swivel axis 26 is provided with and is connected with hollow axle water channel 25-1
Logical water swivel axis intake tunnel 34-1, be connected with the position just to water swivel axis intake tunnel 34-1 on described water pigtail housing 34 into
Water swivel 33, described shading ring 32 is provided with the shading ring water for connecting water swivel axis intake tunnel 34-1 and water supply connector 33
Circulation road；Wherein, two wear rings 29 play the effect of sliding bearing, it can be avoided that drive end bearing bracket 30 and rear end cap 31 during rig work
Radial impact produces to wear-resistant seal circle 28 and destroys, and can extend the service life of wear-resistant seal circle 28.
As shown in Figure 8, Figure 9, Figure 10 and Figure 11, described drill power head 1 includes the deceleration box being slidably connected with guide rail 8
37 with the link 46 being arranged on deceleration box 37 bottom and the piston rod with propelling hydraulic cylinder 5 is fixedly connected, and be arranged on
The hollow multidiameter 15 that gear shaft 38 within deceleration box 37 and water supply pigtail hollow axle 25 penetrate, described deceleration box 37 is pacified
The hydraulic motor 36 being fixedly connected with gear shaft 38 equipped with output shaft, described hollow multidiameter 15 is set with spring mounting seat
14th, spring retainer seat 12, nd face back-up ring 39 and the gear 10 being meshed with gear shaft 38, described spring retainer seat 12 and end face gear
Circle 39 is located at the both sides of gear 10 respectively and is all fixedly connected with gear 10, and described spring mounting seat 14 is set with a vertical compression
In the disk spring group 13 of compressive state, the two ends of described disk spring group 13 are respectively against on spring retainer seat 12 and spring
In the projection of mounting seat 14 end, described nd face back-up ring 39 abuts against hollow multidiameter under the elastic force effect of disk spring group 13
On 15 shaft shoulder, it is provided with described hollow multidiameter 15 for limiting the water pigtail hollow axle 25 penetrating in hollow multidiameter 15
The annular boss 15-1 of radial position, is circumferentially uniformly laid with multiple unit head slips stopper slots in the inner chamber of described gear 10
16, each described unit head slips stopper slot 16 is mounted on the unit head card for clamping water pigtail hollow axle 25 and drilling rod 3
Watts 11, described deceleration box 37 is provided with piston rod and arranges towards gear 10 and be used for promoting gear 10 so that unit head slips
11 clamping water pigtail hollow axles 25 and the compression hydraulic cylinder 9 of drilling rod 3.Wherein, spring mounting seat 14, spring retainer seat 12 and end face gear
Circle 39 is the positioning component of gear 10, by arranging annular boss 15-1, limits the radial position of water pigtail hollow axle 25, it is to avoid
Friction damage water pigtail hollow axle 25 between water pigtail hollow axle 25 and its locking nut 27.
As shown in Figure 1, Figure 2 and Figure 3, in the present embodiment, described frame 6 by three be arranged side by side be respectively provided with rectangular enclosure
The cube shaped welding case of structure is constituted, this frame 6 Stability Analysis of Structures, because of impact shock, elastic deformation will not occur so that
Guiding accuracy has obtained further raising；It is provided with vibration damper plate 7, described guide rail 8, vibration damper plate between described guide rail 8 and frame 6
7 are fixedly connected with the first nut 17 by the first bolt 53 with frame 6；By arranging vibration damper plate 7 between guide rail 8 and frame 6,
Reduce vibration, alleviate abrasion, the accuracy for guiding provides possibility；Set between described clamper base 21 and frame 6
It is equipped with support block 20, described clamper base 21, support block 20 and frame 6 pass through the second bolt 52 and the second nut 44 is fixing even
Connect, described clamper base 21 is provided with the installation screwed hole 61 for installing the second bolt 52；Described link 46 with push away
The piston rod of inlet hydraulic cylinder 5 is fixedly connected by the first pin 45, and described link 46 is provided with for installing the first pin
45 pin-and-hole 23, the upper cover of piston rod of described propelling hydraulic cylinder 5 has Telescopic protection hood 40, and described frame 6 is fixedly connected with
Bearing 48, the cylinder body of described propelling hydraulic cylinder 5 is fixedly connected with bearing 48 by the second pin 47；The quantity of described guide rail 8 is
Two and two guide rail 8 interval settings, two described guide rails 8 are provided with V-shaped groove on relative side side, described reduction box
The bottom of body 37 is located between two guide rails 8 and the two bottom sides of deceleration box 37 are provided with and are slidably connected in described V-shaped groove
V-arrangement raised.Raised and on guide rail 8 the V-shaped groove of the V-arrangement of the two bottom sides of deceleration box 37 constitutes geometry closing, and rig is moved
Power 1 has been slidably connected on guide rail 8, and has been done directly to the spacing of drill power head 1 it is not necessary to other auxiliary stopper machines
Structure, simplifies structure, alleviates weight, improves guiding accuracy.
As shown in Figure 4, Figure 5 and Figure 6, in the present embodiment, between described clamper base 21 top and support base 19 bottom
It is provided with wedge 41, the side of described wedge 41 is stretched out clamper base 21 outside and is connected with tune by the 3rd nut 42
Section bolt 43, the side of described clamper base 21 is provided with the connection screw thread hole for threaded regulating bolt 43.Described
Support base 19 is fixedly connected on clamper base 21 top by the 3rd bolt 51, and described clamping hydraulic cylinder 18 passes through the first screw
54 middle position being fixedly connected on clamping hydraulic cylinder mounting groove 49.Connect absent-mindedness in support base 19 or because vibration leads to
Gap between support base 19 and clamper base 21 increases, and when leading to drilling rod 3 Disalignment, rotates regulating bolt 43, passes through
Ramp effect between wedge 41 and support base 19 it becomes possible to adjust the centre-height of this hydraulic gripper, with adapt to use
During drilling rod 3 center change.
As shown in Figure 13, Figure 14 and Figure 15, in the present embodiment, described clamper slips 22 includes the clamping of rectangular shape
Device slips body 22-1 and be arranged on clamper slips mounting groove 22-2 and slip portion 22- on clamper slips body 22-1
3, described slip portion 22-3 are arcwall face towards the one side of drilling rod 3, and the radius of described arcwall face is equal to the radius of drilling rod 3；
Described clamper slips 22 is by the second screw 24 and the described clamping hydraulic cylinder that are installed in clamper slips mounting groove 22-2
18 piston rod is fixedly connected.
As shown in fig. 7, in the present embodiment, described water pigtail hollow axle 25 and water swivel axis 26 are fastened by locking nut 27, institute
The forward end stating water swivel axis 26 is connected with for limiting drive end bearing bracket 30 jump ring 55 axially movable, and described drive end bearing bracket 30 passes through
4th bolt 56 is fixedly connected with the front end of water pigtail housing 34, and described rear end cap 31 passes through the 5th bolt 57 and water pigtail housing 34
Rear end is fixedly connected.Drive end bearing bracket 30 moving and beat vertically can be limited by arranging jump ring 55, contribute to extending wear-resisting
Sealing ring 28 and the service life of two wear rings 29.
As shown in figure 16, in the present embodiment, the outer ring of described shading ring 32 is open circle, and the inner ring of described shading ring 32 is
Solid rim；Described shading ring water stream channel includes the annular water being connected with water supply connector 33 being formed by the outer ring of shading ring 32
Circulation road 32-1 with the inner ring being arranged on shading ring 32 and be used for connecting annular flow channel 32-1 and water swivel axis intake tunnel
The limbers 32-2 of 34-1.The structure of this shading ring 32 ensure that the reliability of water swivel axis intake tunnel 34-1 and water supply connector 33
Connect.
As shown in Figure 17, Figure 18 and Figure 19, in the present embodiment, the inner bottom surface of described unit head slips stopper slot 16 is oblique
Face, described gear 10 has on the inner bottom surface lead to unit head slips stopper slot 16 and for adding profit for unit head slips 11
The oil duct 10-1 of lubricating oil；The quantity of described unit head slips stopper slot 16 is four, the accordingly quantity of described unit head slips 11
It is four with the quantity of unit head slips mounting groove.Described unit head slips 11 is by unit head slips body 11-1, pad 11-2
With the 3rd screw 11-3 form, described unit head slips body 11-1 outline be shaped as wedge shape, described unit head slips body 11-
1 top transverse section be shaped as swallow-tail form, described pad 11-2 is fixedly connected on unit head slips body by the 3rd screw 11-3
On the bottom surface of 11-1；Described pad 11-2 bottom surface be shaped as circular arc, the bottom surface of described pad 11-2 is provided with reticulate pattern, use
In the friction increasing pad 11-2 and drilling rod 3.Pad 11-2 is fixedly connected on the bottom surface of slips body 11-1 by screw 11-3
On, it is easy to change pad 11-2 after pad 11-2 surface abrasion.
As shown in Fig. 8, Fig. 9 and Figure 10, in the present embodiment, it is provided with inside described deceleration box 37 and supports tooth for installing
Two gear axle bearings 58 of wheel shaft 38 and two hollow ladder axle bearings 59 for installing the hollow multidiameter 15 of support；Described
The output shaft of hydraulic motor 36 is fixedly connected with gear shaft 38 by flat key, described spring retainer seat 12 and hollow multidiameter 15 it
Between and nd face back-up ring 39 and hollow multidiameter 15 between be provided with sealing ring 60；Described spring retainer seat 12 and nd face back-up ring
39 are all fixedly connected with gear 10 by the 6th bolt, and the quantity of described compression hydraulic cylinder 9 is two.When being embodied as, slow down
Casing 37 is welding structure, and under strong vibration, the operating mode of high torque, welding structure ensure that the intensity of deceleration box 37 with just
Degree；In view of the topology requirement of deceleration box 37, processing technique reduces complexity, and make box shape more beautiful
See；And considered the work space of rig and the light-duty demand of rig, welding structure make deceleration box 37 compact conformation,
Save material, cost of implementation is low, production efficiency is high.
Below with the work process of rod boring process and two process description present invention of drilling rod unloading process：
(1) rod boring process：First, clamping hydraulic cylinder 18 piston rod retraction drives clamper slips 22 to unclamp, rig
Unit head 1 is in from the farthest position of hydraulic gripper 4 in the presence of propelling hydraulic cylinder 5；By drilling rod 3 through in support base 19
Hydraulic gripper 4 is put in heart hole, and clamping hydraulic cylinder 18 piston rod drives clamper slips 22 to stretch out, and hydraulic gripper 4 is in clamping
Clamp drilling rod 3 in the presence of device slips 22, then, drill bit is screwed in the head of drilling rod 3；To compression hydraulic cylinder 9 fuel feeding, clamp liquid
The piston rod of cylinder pressure 9 is protruding, and promotion gear 10 moves along the disk spring group 13 that is axially facing of hollow multidiameter 15, goes forward side by side
One step compresses dish-like groups of springs 13, now, under the ramp effect between unit head slips stopper slot 16 and unit head slips 11,
Unit head slips 11 unclamps；Propelling hydraulic cylinder 5 piston rod bounces back, and drill power head 1 is in the presence of propelling hydraulic cylinder 5 towards liquid
Pressure clamper 4 advances, and when the afterbody of first drilling rod withstands on the boss 35 of setting in water pigtail hollow axle 25, stops to clamping
Hydraulic cylinder 9 fuel feeding, the elastic force being constantly in disk spring group 13 generation of compressive state can act on gear 10 always, makes tooth
Wheel 10 has and is axially facing the trend that compression hydraulic cylinder 9 is moved, now, in unit head slips stopper slot 16 along hollow multidiameter 15
Under ramp effect and unit head slips 11 between, unit head slips 11 clamps drilling rod 3, and root drilling rod 3 loading finishes.Then, press from both sides
Holding hydraulic cylinder 18 piston rod retraction drives clamper slips 22 to unclamp drilling rod 3, and hydraulic motor 36 rotates forward, propelling hydraulic cylinder 5 piston
Bar continues retraction, drives drilling rod 3 to be crept into.After the completion of drilling rod 3 drilling stroke, propelling hydraulic cylinder 5 piston rod stops retraction, liquid
Pressure motor 36 stops rotating forward, and clamping hydraulic cylinder 18 piston rod drives clamper slips 22 to stretch out, and hydraulic gripper 4 is in clamper card
Drilling rod 3 is clamped in the presence of watts 22；Give compression hydraulic cylinder 9 fuel feeding again, the piston rod of compression hydraulic cylinder 9 is protruding, promotes
Gear 10 moves along the disk spring group 13 that is axially facing of hollow multidiameter 15, and compresses dish-like groups of springs 13 further, now,
Under the ramp effect between unit head slips stopper slot 16 and unit head slips 11, unit head slips 11 unclamps drilling rod 3；Propulsion
Hydraulic cylinder 5 piston rod stretches out, and drill power head 1 moves away from hydraulic gripper 4 in the presence of propelling hydraulic cylinder 5, returns to just
Behind beginning position, propelling hydraulic cylinder 5 quits work.The loading of drilling rod 3 later and drilling repeat above procedure, are finally completed certain
Punching depth.
(2) drilling rod unloading process：Creep into last root drilling rod 3, after completing predetermined punching depth, hydraulic motor 36 is anti-
Turn, propelling hydraulic cylinder 5 piston rod stretches out, and drill power head 1 backs to precalculated position it is ensured that hydraulic gripper 4 can directly press from both sides
The afterbody of first drilling rod 3 to outside hole；Clamping hydraulic cylinder 18 piston rod drives clamper slips 22 to stretch out, and hydraulic gripper 4 exists
Outer first drilling rod 3 of holes for clamping in the presence of clamper slips 22, propelling hydraulic cylinder 5 is in quick condition, to compression hydraulic cylinder 9
Fuel feeding, the piston rod of compression hydraulic cylinder 9 is protruding, promotes gear 10 to be axially facing disk spring group along hollow multidiameter 15
13 is mobile, and compresses dish-like groups of springs 13 further, now, between unit head slips stopper slot 16 and unit head slips 11
Under ramp effect, unit head slips 11 unclamps, and hydraulic motor 36 reversion makes outside boss 35 and the hole of setting in water pigtail hollow axle 25
The afterbody of first drilling rod 3 departs from；Clamping hydraulic cylinder 18 piston rod retraction drives clamper slips 22 to unclamp first brill outside hole
Bar 3, the elastic force stopping being constantly in disk spring group 13 generation of compressive state to compression hydraulic cylinder 9 fuel feeding can act on always
On gear 10, so that gear 10 is had and be axially facing, along hollow multidiameter 15, the trend that compression hydraulic cylinder 9 is moved, now, dynamic
Under ramp effect between power head slips stopper slot 16 and unit head slips 11, outer first drilling rod of unit head slips 11 holes for clamping
3, propelling hydraulic cylinder 5 piston rod stretches out, and hydraulic motor 36 inverts, and drill power head 1 backs to guarantee unit head slips 11 can
It is directly clamping to the position of second drilling rod 3 head outside hole；Clamping hydraulic cylinder 18 piston rod drives clamper slips 22 to stretch out, liquid
Outer second drilling rod 3 of pressure clamper 4 holes for clamping in the presence of clamper slips 22, propelling hydraulic cylinder 5 is in quick condition, liquid
Pressure motor 36 inverts, and so that second drilling rod 3 outside first drilling rod 3 and hole outside hole is separated；Propelling hydraulic cylinder 5 piston rod stretches out, and bores
Mechanomotive force 1 retreats certain distance, and to compression hydraulic cylinder 9 fuel feeding, the piston rod of compression hydraulic cylinder 9 is protruding, promotes gear
10 along hollow multidiameter 15 to be axially facing disk spring group 13 mobile, and compress dish-like groups of springs 13 further, now, dynamic
Under ramp effect between power head slips stopper slot 16 and unit head slips 11, unit head slips 11 unclamps, and takes off first outside hole
Root drilling rod 3.Later drilling rod 3 extract and take off repetition above procedure, the pulling out from hole and unload of 3 one one, drilling rod the most at last
Under.
The above, be only presently preferred embodiments of the present invention, not the present invention imposed any restrictions, every according to the present invention
Any simple modification, change and equivalent structure change that technical spirit is made to above example, all still fall within skill of the present invention
In the protection domain of art scheme.
Claims (8)
1. a kind of coal mine down-hole drilling with light-duty all-hydraulic drill it is characterised in that：Including frame (6), drilling rod (3) and water pigtail
, and be fixedly connected on guide rail (8), propelling hydraulic cylinder (5) and the hydraulic gripper (4) at frame (6) top, described guide rail (2)
(8) slidably connect drill power head (1) on；Described drilling rod (3) passes through hydraulic gripper (4) to pass through afterwards to be connected with water pigtail (2)
Water pigtail (2) on drill power head (1) is connected with drill power head (1)；
Described hydraulic gripper (4) is included the clamper base (21) being fixedly connected with frame (6) and is fixedly connected on clamper
The support base (19) at base (21) top, described support base (19) is integral type structure, the geometric center of described support base (19)
Have the centre bore passing through for drilling rod (3) at position, the top surface of described support base (19), left surface and right flank respectively have one
The clamping hydraulic cylinder mounting groove (49) that individual and described centre bore is connected, three described clamping hydraulic cylinder mounting grooves (49) are in equilateral
Triangle is laid, and the middle position of each described clamping hydraulic cylinder mounting groove (49) has been fixedly connected with clamping hydraulic cylinder
(18), the piston rod of each described clamping hydraulic cylinder (18) is all laid towards the geometric center of clamping hydraulic cylinder mounting groove (49),
It has been fixedly connected with clamping hydraulic cylinder mounting groove (49) on the piston rod of each described clamping hydraulic cylinder (18) and be used for
The clamper slips (22) of holding drill pipe (3), three clamper slips (22) are uniformly laid in drilling rod (3) around, described
Support seat (19) is located at the position of described centre bore bottom and has impurity discharge groove (50)；
Described water pigtail (2) includes water pigtail housing (34) and is arranged on the internal water swivel axis (26) of water pigtail housing (34), described water pigtail
The threaded one end of axle (26) is connected with and stretches out outside water pigtail hollow axle (25) of water pigtail housing (34), described water pigtail hollow axle (25)
Axial centre position at and the axial centre position of water swivel axis (26) at be provided with the drilling rod hole passing through for drilling rod (3), institute
State and multiple unit head slips mounting grooves for accommodating unit head slips (11) are uniformly had on water pigtail hollow axle (25)；Described water
It is provided with spaced two wear rings (29) between pigtail axle (26) and water pigtail housing (34), set between two wear rings (29)
It is equipped with the shading ring (32) with water swivel axis (26) interference fit, the front end of described water pigtail housing (34) is fixedly connected with drive end bearing bracket
(30), the rear end of described water pigtail housing (34) is fixedly connected with rear end cap (31), described drive end bearing bracket (30) and water swivel axis (26) it
Between and rear end cap (31) and water swivel axis (26) between be provided with wear-resistant seal circle (28), set in described water pigtail hollow axle (25)
It is equipped with the boss (35) for jacking drilling rod (3) afterbody, described boss (35) is provided with boss intake tunnel (35-1), described
It is provided with water pigtail hollow axle (25) and be staggered with multiple described slips mounting grooves and be connected with boss intake tunnel (35-1)
Hollow axle water channel (25-1), described water swivel axis (26) are provided be connected with hollow axle water channel (25-1) water swivel axis water inlet
Passage (34-1), described water pigtail housing (34) is connected with water supply connector at the position just to water swivel axis intake tunnel (34-1)
(33), described shading ring (32) is provided with the shading ring for connecting water swivel axis intake tunnel (34-1) and water supply connector (33)
Water stream channel；
Described drill power head (1) is included the deceleration box (37) being slidably connected with guide rail (8) and is arranged on deceleration box (37)
The link (46) that bottom and the piston rod with propelling hydraulic cylinder (5) are fixedly connected, and it is internal to be arranged on deceleration box (37)
Gear shaft (38) and the hollow multidiameter (15) that penetrates of water supply pigtail hollow axle (25), described deceleration box (37) is provided with defeated
The hydraulic motor (36) that shaft is fixedly connected with gear shaft (38), described hollow multidiameter (15) is set with spring mounting seat
(14), spring retainer seat (12), nd face back-up ring (39) and the gear (10) being meshed with gear shaft (38), described spring retainer seat
(12) it is located at the both sides of gear (10) respectively with nd face back-up ring (39) and be all fixedly connected with gear (10), described spring mounting seat
(14) it is set with the disk spring group (13) that a vertical compression is in compressive state on, the two ends of described disk spring group (13) are tight respectively
Lean against spring retainer seat (12) above and in the projection of spring mounting seat (14) end, described nd face back-up ring (39) is in disk spring group
(13) abut against under elastic force effect on the shaft shoulder of hollow multidiameter (15), be provided with for limiting in described hollow multidiameter (15)
System penetrates the annular boss (15-1) of the radial position of water pigtail hollow axle (25) in hollow multidiameter (15), described gear (10)
Inner chamber in be circumferentially uniformly laid with multiple unit heads slips stopper slot (16), each described unit head slips stopper slot (16)
On be mounted on for clamping water pigtail hollow axle (25) and drilling rod (3) unit head slips (11), on described deceleration box (37)
Piston rod is installed arrange towards gear (10) and be used for promoting gear (10) so that unit head slips (11) clamping water pigtail is hollow
The compression hydraulic cylinder (9) of axle (25) and drilling rod (3)；
It is provided with wedge (41), described wedge (41) between described clamper base (21) top and support base (19) bottom
To stretch out clamper base (21) outside and be connected with regulating bolt (43) by nut for side, described clamper base (21)
Side is provided with the connection screw thread hole for threaded regulating bolt (43)；
Described clamper slips (22) includes clamper slips body (22-1) of rectangular shape and is arranged on clamper slips
Clamper slips mounting groove (22-2) on body (22-1) and slip portion (22-3), described slip portion (22-3) direction
The one side of drilling rod (3) is arcwall face, and the radius of described arcwall face is equal to the radius of drilling rod (3)；Described clamper slips (22) is led to
The piston rod crossing the screw being installed in clamper slips mounting groove (22-2) with described clamping hydraulic cylinder (18) is fixedly connected.
2. according to a kind of coal mine down-hole drilling described in claim 1 with light-duty all-hydraulic drill it is characterised in that：Described frame
(6) it is made up of the cube shaped welding case being respectively provided with rectangular enclosure structure that three are arranged side by side, described guide rail (8) and frame
(6) it is provided with vibration damper plate (7) between, described guide rail (8), vibration damper plate (7) are fixedly connected by screw bolt and nut with frame (6)；
It is provided with support block (20), described clamper base (21), support block (20) between described clamper base (21) and frame (6)
It is fixedly connected by screw bolt and nut with frame (6), described clamper base (21) is provided with the installation for installation bolt
Screwed hole (61)；Described link (46) is fixedly connected by pin with the piston rod of propelling hydraulic cylinder (5), described link
(46) it is provided with the pin-and-hole (23) for installing pin on, the upper cover of piston rod of described propelling hydraulic cylinder (5) has scalable protection
Cover (40), described frame (6) is fixedly connected with bearing (48), and the cylinder body of described propelling hydraulic cylinder (5) passes through pin and bearing
(48) it is fixedly connected；The quantity of described guide rail (8) is two and two guide rail (8) interval settings, and two described guide rails (8) are relatively
Side side on be provided with V-shaped groove, the bottom of described deceleration box (37) is located between two guide rails (8) and deceleration box
(37) it is raised that two bottom sides are provided with the V-arrangement being slidably connected in described V-shaped groove.
3. according to a kind of coal mine down-hole drilling described in claim 1 with light-duty all-hydraulic drill it is characterised in that：Described support
Seat (19) is bolted to connection at clamper base (21) top, and described clamping hydraulic cylinder (18) is fixedly connected by screw
Middle position in clamping hydraulic cylinder mounting groove (49).
4. according to a kind of coal mine down-hole drilling described in claim 1 with light-duty all-hydraulic drill it is characterised in that：Described water pigtail
Hollow axle (25) and water swivel axis (26) pass through locking nut (27) and fasten, the forward end of described water swivel axis (26) be connected with for
Limit drive end bearing bracket (30) jump ring (55) axially movable, described drive end bearing bracket (30) passes through the front end of bolt and water pigtail housing (34)
It is fixedly connected, described rear end cap (31) is fixedly connected with the rear end of water pigtail housing (34) by bolt.
5. according to a kind of coal mine down-hole drilling described in claim 1 with light-duty all-hydraulic drill it is characterised in that：Described isolation
The outer ring of ring (32) is open circle, and the inner ring of described shading ring (32) is solid rim；Described shading ring water stream channel include by every
From the outer ring of ring (32) formed the annular flow channel (32-1) being connected with water supply connector (33) and be arranged on shading ring
(32) on inner ring and be used for connecting the limbers (32-2) of annular flow channel (32-1) and water swivel axis intake tunnel (34-1).
6. according to a kind of coal mine down-hole drilling described in claim 1 with light-duty all-hydraulic drill it is characterised in that：Described power
The inner bottom surface of head slips stopper slot (16) is inclined-plane, described gear (10) has and leads to the interior of unit head slips stopper slot (16)
On bottom surface and for the oil duct (10-1) for unit head slips (11) oil addition；Described unit head slips stopper slot (16)
Quantity is four, and accordingly the quantity of described unit head slips (11) and the quantity of unit head slips mounting groove are four.
7. according to a kind of coal mine down-hole drilling described in claim 1 with light-duty all-hydraulic drill it is characterised in that：Described power
Head slips (11) is made up of unit head slips body (11-1), pad (11-2) and screw, and described unit head slips body (11-1) is outward
Profile be shaped as wedge shape, described unit head slips body (11-1) top transverse section be shaped as swallow-tail form, described pad (11-
2) it is fixedly connected on by screw on the bottom surface of unit head slips body (11-1)；Described pad (11-2) bottom surface be shaped as circular arc
Shape, the bottom surface of described pad (11-2) is provided with reticulate pattern.
8. according to a kind of coal mine down-hole drilling described in claim 1 with light-duty all-hydraulic drill it is characterised in that：Described deceleration
It is provided with inside casing (37) for installing two gear axle bearings (58) supporting gear shaft (38) and supporting for installation empty
Two hollow ladder axle bearings (59) of heart multidiameter (15)；The output shaft of described hydraulic motor (36) passes through flat key and gear shaft
(38) it is fixedly connected, between described spring retainer seat (12) and hollow multidiameter (15) and nd face back-up ring (39) and hollow ladder
It is provided with sealing ring (60) between axle (15)；Described spring retainer seat (12) and nd face back-up ring (39) are all by bolt and gear
(10) it is fixedly connected, the quantity of described compression hydraulic cylinder (9) is two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510201861.0A CN104832080B (en) | 2015-04-24 | 2015-04-24 | A kind of light-duty all-hydraulic drill of coal mine down-hole drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510201861.0A CN104832080B (en) | 2015-04-24 | 2015-04-24 | A kind of light-duty all-hydraulic drill of coal mine down-hole drilling |
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