CN207246144U - Two-restriction formula underground drill rig multiple directional control valve - Google Patents
Two-restriction formula underground drill rig multiple directional control valve Download PDFInfo
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- CN207246144U CN207246144U CN201721201988.3U CN201721201988U CN207246144U CN 207246144 U CN207246144 U CN 207246144U CN 201721201988 U CN201721201988 U CN 201721201988U CN 207246144 U CN207246144 U CN 207246144U
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Abstract
The utility model discloses a kind of two-restriction formula underground drill rig multiple directional control valve, including oil inlet valve block, rotary valve plate, shuttle valve valve block, feeding valve block and the switching valve block being sequentially connected；Oil inlet valve block is used to connect underground drill rig main pump and fuel tank；Rotary valve plate is used to connect oil inlet P 1 and oil return inlet T 1 and the forward and backward oil inlet of underground drill rig rotation motor；Feeding valve block is used to control the flexible of feed cylinder；The switching valve block includes 3-position 4-way hand-operated direction valve, two-bit triplet hand-operated direction valve I, two-bit triplet hand-operated direction valve II, two-bit triplet pilot operated directional control valve, two four-way pilot operated directional control valves, balanced valve, shuttle valves；Being equipped with feed cylinder in switching valve on piece promotes hydraulic fluid port A2, clamp holder clamping hydraulic fluid port A4, clamper to unclamp hydraulic fluid port B4, chuck hydraulic fluid port A3, oil return inlet T 2.Beneficial effect is：It is to clamp drilling rod all the time to make oild chuck, and avoiding clamper and oild chuck, drilling rod slides caused by possibility when state switches.Manipulation is easy, and integrated level is high, securely and reliably.
Description
Technical field
A kind of multiple directional control valve is the utility model is related to, more particularly to a kind of two-restriction formula underground drill rig multiple directional control valve.
Background technology
Underground drill rig is the drilling machine crept into underground passage, is mainly used for geology of deep part exploration, gas in tunnel
The engineering constructions such as extraction, water injection, ventilation.Its primary structure is：Power head equipped with oild chuck is connected with propelling cylinder, folder
Holder is made of two panels semicircle slips, and a piece of slips is fixed, and another slips can move, the two panels card under disc spring effect
Watt it is pressed to together.Its working method is：Multi-way valve rotation handle commutation, power head rotation, makes oild chuck clamp drilling rod rotation
Turn, while clamper two panels slips is opened, and unclamps drilling rod, promotes handle to be pushed forward commutation, the power head under the action of propelling cylinder
Advance, crept into；After throwing a drilling rod into, handle is promoted to return middle position, power head halts, and rotation handle returns middle position, moves
Power head stops rotating, and clamper two panels slips clamps the drilling rod thrown into, prevents from dropping.A drilling rod is installed additional again in drilling rod afterbody,
The commutation of handle post-tensioning is promoted, oild chuck unclamps, and power head backs to afterbody, drills by constantly installing drilling rod circulation additional.Chuck
Clamping and opening, clamper clamping and open controlled by control valve group.
Current multi-way valve of drilling has the situation that drilling rod slides during drilling, the reason is that power head starts to revolve
Turn, chuck and clamper act at the same time, and chuck needs a stroke from unclamping to be changed into clamping, and clamper is to be changed into pine from clamping
Open, drilling rod can be unclamped immediately, drilling rod can slide certain distance within this time difference.
The content of the invention
Technical problem to be solved in the utility model is to provide a kind of two-restriction formula underground drill rig multiple directional control valve, in drilling machine
Clamp holder clamping during stalling, while oild chuck can also clamp, when power head starts rotation, it is only necessary to clamper is opened,
Oild chuck clamps all the time, thus eliminates clamper and the simultaneous transition status of oild chuck, ensures drilling rod
All the time it is clamped, avoids the possibility of drilling rod landing.
The technical solution of the utility model is as follows：
A kind of two-restriction formula underground drill rig multiple directional control valve, including oil inlet valve block, rotary valve plate, the shuttle valve valve being sequentially connected
Piece, feeding valve block and switching valve block；The inlet valve on piece is equipped with oil inlet P 1 and oil return inlet T 1, for connecting underground drill rig master
Pump and fuel tank；The rotary valve plate be used to connecting the forward and backward of oil inlet P 1 and oil return inlet T 1 and underground drill rig rotation motor into
Hydraulic fluid port；The feeding valve block is used to control the flexible of feed cylinder；
The shuttle valve valve block includes three check valves and a sequence valve；Shuttle valve valve block is equipped with auxiliary pump oil inlet P 2 and interior
Portion hydraulic fluid port P, internal hydraulic fluid port P are connected by actuator port A1, B1 and auxiliary pump oil inlet P 2 of a check valve and rotary valve plate 2 respectively
Logical, the sequence valve 8 is connected between auxiliary pump oil inlet P 2 and 2 ＇ of inside oil inlet P for feeding valve block 4；
The switching valve block includes 3-position 4-way hand-operated direction valve, two-bit triplet hand-operated direction valve I, two-bit triplet and changes manually
To valve II, two-bit triplet pilot operated directional control valve, two four-way pilot operated directional control valves, balanced valve, shuttle valves；Feeding is equipped with switching valve on piece
Oil cylinder promotes hydraulic fluid port A2, clamp holder clamping hydraulic fluid port A4, clamper to unclamp hydraulic fluid port B4, chuck hydraulic fluid port A3, oil return inlet T 2；
The P mouths and the actuator port B2 of induction valve on piece of the 3-position 4-way hand-operated direction valve 13 are connected by internal galleries
Logical, the T mouths of 3-position 4-way hand-operated direction valve 13 are connected with the internal work hydraulic fluid port A2 ＇ in feeding valve block by internal galleries；Three
The A mouths of position four-way hand-operated direction valve 13 and the actuator port A1 of rotary valve plate pass through the shuttle valve and the two-bit triplet hand respectively
The T mouths connection of dynamic reversal valve I 16, the B mouths of 3-position 4-way hand-operated direction valve 13 pass through with the T mouths of two-bit triplet hand-operated direction valve II
Internal galleries connect；
The two-bit triplet hand-operated direction valve I, II and two-bit triplet pilot operated directional control valve 20 and two four-way liquid controlled reversings
The P mouths of valve are connected by internal galleries with the internal hydraulic fluid port P respectively, A mouths and two four-ways of two-bit triplet hand-operated direction valve I
The control port K1 of pilot operated directional control valve is connected by internal galleries；
The A mouths of the two-bit triplet hand-operated direction valve II and the control port K2 of two-bit triplet pilot operated directional control valve 20 pass through interior
Portion's oil duct connection；The T mouths of two-bit triplet pilot operated directional control valve 20 are connected with oil return inlet T 2, the A mouths of two-bit triplet pilot operated directional control valve with
Chuck hydraulic fluid port A3 is connected；For controlling the working status of oild chuck；The A mouths and clamp holder clamping of two four-way pilot operated directional control valves
A4, B mouthfuls of hydraulic fluid port unclamps hydraulic fluid port B4 with clamper and is connected respectively by internal galleries, for controlling the working status of clamper；
Internal work hydraulic fluid port A2 ＇ in the feeding valve block promote hydraulic fluid port A2 to connect by internal galleries with the feed cylinder
It is logical, and the balanced valve is located between internal work hydraulic fluid port A2 ＇ and feed cylinder propulsion hydraulic fluid port A2, the control port K3 of balanced valve
Connected with the actuator port B1 of rotary valve plate 2 by internal galleries.
As further preferred, it is equipped with inlet valve on piece and main pump overflow is connected between oil inlet P 1 and oil return inlet T 1
Valve, for setting main pump maximum pressure.
As further preferred, the rotary valve plate includes three six-way valves I, it includes the actuator port A1 and
B1, internal work hydraulic fluid port P1 ＇, internal oil return inlet T 3 and the inside oil inlet connected with oil inlet P 1.
As further preferred, when three six-way valves I 7 are in middle position, the oil inlet P 1 and internal work hydraulic fluid port
P1 ＇ are turned on, and actuator port A1 and B1 is turned on by internal oil return inlet T 3 with oil return inlet T 1；When three six-way valves I 7 are in upper
When, the oil inlet P 1 is turned on actuator port A1, and actuator port B1 is turned on by internal oil return inlet T 3 with oil return inlet T 1, oil inlet
Mouth P1 and internal work hydraulic fluid port P1 ＇ end；When three six-way valves I 7 are in bottom, the oil inlet P 1 and actuator port B1
Conducting, actuator port A1 are turned on by internal oil return inlet T 3 with oil return inlet T 1, and oil inlet P 1 and internal work hydraulic fluid port P1 ＇ end.
As further preferred, the feeding valve block 4 includes manual three six-way valve II 12, and it includes internal oil inlet
Mouth P2 ＇, actuator port B2, internal work hydraulic fluid port A2 ＇ and internal oil return inlet T 4 and T5；Actuator port B2 is used to connect into oil supply
The rodless cavity of cylinder 24；Internal work hydraulic fluid port A2 ＇ promote hydraulic fluid port A2 to connect with the feed cylinder on switching valve block 5, internal oil return opening
T4 and T5 is connected by internal galleries with oil return inlet T 1 respectively.
As further preferred, when three six-way valves II 12 are in middle position, internal 2 ＇ of oil inlet P passes through inside
Oil return inlet T 5 is turned on oil return inlet T 1, and internal work hydraulic fluid port A2 ＇ and actuator port B2 passes through internal oil return inlet T 4 and oil return inlet T 1
Conducting；When three six-way valves II 12 are in it is upper when, internal 2 ＇ of oil inlet P is turned on actuator port B2, internal work
Hydraulic fluid port A2 ＇ are turned on by internal oil return inlet T 4 with oil return inlet T 1, and internal 2 ＇ of oil inlet P ends with internal oil return inlet T 5；When this three
When position six-way valve II 12 is in the next, internal 2 ＇ of oil inlet P is turned on internal work hydraulic fluid port A2 ＇, and actuator port B2 passes through
Internal oil return inlet T 4 is turned on oil return inlet T 1, and internal 2 ＇ of oil inlet P ends with internal oil return inlet T 5.
As further preferred, set between the B mouths and clamper of two four-way pilot operated directional control valves unclamp hydraulic fluid port B4
There is pressure reducing valve, for controlling the input pressure of clamper, so as to control its aperture size.
As further preferred, throttle valve is equipped between the T mouths and oil return inlet T 2 of two-bit triplet pilot operated directional control valve 20, is used
In the oil return speed of control oild chuck, so as to control its opening speed.
The beneficial effects of the utility model are：
1st, when drilling machine stalls, clamper and oild chuck simultaneously clamp on drilling rod；When power head starts rotation, it is only necessary to
Clamper is opened, and oild chuck clamps all the time, avoids clamper and oild chuck when state switch caused by possibility
Drilling rod slides.
2nd, manipulation is easy, and integrated level is high, securely and reliably.
Brief description of the drawings
Fig. 1 is the structure diagram of the utility model.
Fig. 2 is the structure principle chart of the utility model.
In figure：Oil inlet valve block 1, rotary valve plate 2, shuttle valve valve block 3, feeding valve block 4, switching valve block 5, main overflow valve 6, three
Six-way valve I 7, sequence valve 8, check valve I 9, check valve II 10, check valve III 11, three six-way valves II 12,3-position 4-way changes manually
To valve 13, balanced valve 14, shuttle valve 15, two-bit triplet hand-operated direction valve I 16, two four-way pilot operated directional control valves 17, pressure reducing valve 18, two
Position threeway hand-operated direction valve II 19, two-bit triplet pilot operated directional control valve 20, check valve IV 21, throttle valve 22, rotation motor 23, feeding
Oil cylinder 24, clamper 25, oild chuck 26.
Embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without creative efforts
The all other embodiment obtained, shall fall within the protection scope of the present invention.
As depicted in figs. 1 and 2, a kind of two-restriction formula underground drill rig multiple directional control valve that the utility model is related to, including pass through
The sequentially connected oil inlet valve block 1 of bolt, rotary valve plate 2, shuttle valve valve block 3, feeding valve block 4 and switching valve block 5；The oil inlet valve block
1 is used to connect main pump oil inlet and total oil return；The rotary valve plate 2 be used to connecting the forward and backward of underground drill rig rotation motor 23 into
Hydraulic fluid port, so as to control the forward and backward of rotation motor 23；Underground drill rig liquid when the switching valve block 5 drills and pulls out of hole for control
The clamping and release of chuck 26 and clamper 25 are pressed, the feeding valve block 4 is used to control the flexible of feed cylinder 24.
The oil inlet valve block 1 includes an oil inlet valve body, and oil inlet P 1 and oil return inlet T 1 are equipped with oil inlet valve body, described
Oil inlet P 1 is drawn by oil inlet valve body surface, for connecting underground drill rig main pump；The oil return inlet T 1 is drawn by oil inlet valve body surface
Go out, for connecting fuel tank；Main overflow valve 6 is connected between oil inlet P 1 and oil return inlet T 1, for preventing from entering in system
The oil pressure in portion is excessive and damages system.
The rotary valve plate 2 includes three six-way valves I 7 being located on rotary valve, it includes actuator port A1 and
B1 and internal work hydraulic fluid port P1 ＇ and internal oil return inlet T 3.Actuator port A1 and B1 is drawn by rotary valve surface, is respectively used to
Connect the forward and backward oil inlet of underground drill rig rotation motor 23.When three six-way valves I 7 are in middle position, the oil inlet P 1
Turned on internal work hydraulic fluid port P1 ＇, actuator port A1 and B1 is turned on by internal oil return inlet T 3 with oil return inlet T 1；When this three six
When port valve I 7 is in upper, the oil inlet P 1 is turned on actuator port A1, and actuator port B1 is by internal oil return inlet T 3 with returning
Hydraulic fluid port T1 is turned on, and oil inlet P 1 and internal work hydraulic fluid port P1 ＇ end；When three six-way valves I 7 are in bottom, the oil inlet
Mouth P1 is turned on actuator port B1, and actuator port A1 is turned on by internal oil return inlet T 3 with oil return inlet T 1, oil inlet P 1 and inside
Actuator port P1 ＇ end；Internal work hydraulic fluid port P1 ＇ are connected by internal oil passages with feeding 2 ＇ of inside oil inlet P of valve block 4；
The shuttle valve valve block 3 includes shuttle valve valve body and check valve I 9, check valve II 10, list on shuttle valve valve body
To valve III 11 and sequence valve 8；Shuttle valve valve block 3 is equipped with auxiliary pump oil inlet P 2 and internal hydraulic fluid port P；The auxiliary pump oil inlet P 2 is by shuttle
Valve body surface is drawn, for connecting underground drill rig auxiliary pump；Internal hydraulic fluid port P is connected by check valve II 10 with actuator port A1,
Internal hydraulic fluid port P is connected by check valve III 11 with reversion hydraulic fluid port B1, and internal hydraulic fluid port P is connected by check valve I 9 and auxiliary pump oil inlet P 2
It is logical.The sequence valve 8 is connected between auxiliary pump oil inlet P 2 and 2 ＇ of inside oil inlet P for feeding valve block 4, when auxiliary pump oil inlet P 2
Sequence valve 8 is pushed open after reaching certain pressure, and auxiliary pump oil inlet P 2 is connected with feeding 2 ＇ of inside oil inlet P of valve block 4, the present embodiment
The Opening pressure of sequence valve 8 is by taking 8MPa as an example, for providing the fluid with certain pressure for the internal hydraulic fluid port P, so that really
Protect in the clamping oil pocket of underground drill rig clamper 25 has certain oil pressure to clamp drilling rod all the time, prevents drilling rod from sliding.
The feeding valve block 4 includes manual three six-way valve II 12 being located on feeding valve body, and it includes described interior
2 ＇ of portion's oil inlet P, actuator port B2, internal work hydraulic fluid port A2 ＇ and internal oil return inlet T 4 and T5.Actuator port B2 is by induction valve
Body surface face is drawn, for connecting the rodless cavity of feed cylinder 24；Internal work hydraulic fluid port A2 ＇ and the feed cylinder on switching valve block 5
Hydraulic fluid port A2 connections are promoted, internal oil return inlet T 4 and T5 are connected by internal galleries with oil return inlet T 1 respectively.
When three six-way valves II 12 are in middle position, internal 2 ＇ of oil inlet P passes through internal oil return inlet T 5 and inside
Oil duct is turned on oil return inlet T 1, and internal work hydraulic fluid port A2 ＇ and actuator port B2 is by internal oil return inlet T 4 and internal galleries with returning
Hydraulic fluid port T1 is turned on；When three six-way valves II 12 are in it is upper when, internal 2 ＇ of oil inlet P is turned on actuator port B2, interior
Portion actuator port A2 ＇ are turned on by internal oil return inlet T 4 and internal galleries with oil return inlet T 1, internal 2 ＇ of oil inlet P and internal oil return
Mouth T5 cut-offs；When three six-way valves II 12 are in bottom, internal 2 ＇ of oil inlet P is turned on internal work hydraulic fluid port A2 ＇,
Actuator port B2 is turned on by internal oil return inlet T 4 and internal galleries with oil return inlet T 1, internal 2 ＇ of oil inlet P and internal oil return opening
T5 ends.
The switching valve block 5 includes switching valve and the 3-position 4-way hand-operated direction valve 13, two being located on switching valve
20, two threeway hand-operated direction valve I 16, two-bit triplet hand-operated direction valve II 19, two-bit triplet pilot operated directional control valve four-way hydraulic controls are changed
To valve 17, balanced valve 14, shuttle valve 15, check valve IV 21, throttle valve 22；Feed cylinder is equipped with the switching valve and promotes oil
Mouth A2, clamp holder clamping hydraulic fluid port A4, clamper unclamp hydraulic fluid port B4, chuck hydraulic fluid port A3 and oil return inlet T 2.Wherein, feed cylinder promotes
Hydraulic fluid port A2 is drawn by switching valve surface, for connecting the rod chamber oil inlet of feed cylinder 24；Clamp holder clamping hydraulic fluid port A4 by
Switching valve surface is drawn, for connecting the clamping chamber hydraulic fluid port of clamper 25；Clamper unclamps hydraulic fluid port B4 by switching valve surface
Draw, for connecting the release chamber hydraulic fluid port of clamper 25；Chuck hydraulic fluid port A3 is drawn by switching valve surface, for connecting chuck 26
Oil suction chamber；Oil return inlet T 2 is drawn by switching valve surface, for connecting fuel tank, realizes release oil when oild chuck 26 unclamps
Liquid.
The P mouths of the 3-position 4-way hand-operated direction valve 13 and the actuator port B2 of manual three six-way valves II 12 pass through inside
The internal work hydraulic fluid port A2 ＇ of oil duct connection, the T mouths of 3-position 4-way hand-operated direction valve 13 and manual three six-way valves II 12 pass through interior
Portion's oil duct connection.The shuttle valve 15 includes internal hydraulic fluid port S1, S2, S3, wherein in internal hydraulic fluid port S3 and internal hydraulic fluid port S1 or S2
Pressure the greater connects, and the less internal hydraulic fluid port S1 or S2 of pressure is ended.The A mouths of the 3-position 4-way hand-operated direction valve 13 with
The inside hydraulic fluid port S2 connections of the shuttle valve, the actuator port A1 of three six-way valves I 7 pass through internal galleries and the shuttle valve
Internal hydraulic fluid port S1 connections, the B mouths of the 3-position 4-way hand-operated direction valve 13 pass through with the T mouths of two-bit triplet hand-operated direction valve II 19
Internal galleries connect.
The P mouths of the two-bit triplet hand-operated direction valve I 16 pass through internal galleries with the inside hydraulic fluid port P of the shuttle valve valve block 3
Connection, the T mouths of two-bit triplet hand-operated direction valve I 16 are connected with the inside hydraulic fluid port S3 of the shuttle valve, two-bit triplet hand-operated direction valve I
16 A mouths are connected with the control port K1 of two four-way pilot operated directional control valves 17 by internal galleries.
The P mouths of the two-bit triplet hand-operated direction valve II 19 pass through internal galleries with the inside hydraulic fluid port P of the shuttle valve valve block 3
Connection, the A mouths and the control port K2 of two-bit triplet pilot operated directional control valve 20 of two-bit triplet hand-operated direction valve II 19 pass through interior oil
Road connects.
The interior oil that the P mouths of the two-bit triplet pilot operated directional control valve 20 pass through a check valve 21 and the shuttle valve valve block 3
Mouth P is connected by internal galleries, and the T mouths of two-bit triplet pilot operated directional control valve 20 are connected by a throttle valve 22 and the oil return inlet T 2
Logical, the A mouths of two-bit triplet pilot operated directional control valve 20 are connected with chuck hydraulic fluid port A3, for by chuck hydraulic fluid port A3 connecting chucks 26 into
Oil pocket.
The P mouths of two four-way pilot operated directional control valves 17 are connected with the inside hydraulic fluid port P of the shuttle valve valve block 3 by internal galleries
Logical, the T mouths of two four-way pilot operated directional control valves 17 are connected with oil return inlet T 1 by internal galleries, two four-way pilot operated directional control valves 17
A mouthfuls connect with the clamp holder clamping hydraulic fluid port A4, and the B mouths of two four-way pilot operated directional control valves 17 pass through pressure reducing valve 18 and internal galleries
Hydraulic fluid port B4 is unclamped with clamper to connect.
The balanced valve 14 is connected to the interior oil between internal work hydraulic fluid port A2 ＇ and feed cylinder propulsion the hydraulic fluid port A2
On road, the control port K3 of balanced valve 14 is connected with the actuator port B1 of three six-way valves I 7 by internal galleries.
During the work time when underground drill rig is in stop state, three six-way valves I 7 and three six-way valves II 12 are located
In middle position, 3-position 4-way hand-operated direction valve 13 is in upper cross-conduction position, and two-bit triplet hand-operated direction valve 16 is in upper
Position i.e. A mouthfuls and T mouthfuls of conductings, two-bit triplet hand-operated direction valve 19 are in upper i.e. A mouthfuls and T mouthfuls of conductings, and hydraulic motor 23 stops at this time
Turn, feed cylinder 24 is slack.Main pump hydraulic oil is entered by oil inlet P 1, is led to by three six-way valves I 7 and manual three six
Valve II 12, reaches oil return inlet T 1 and returns to fuel tank；Auxiliary pump hydraulic oil enters from auxiliary pump oil inlet P 2, is opened after rising to 8MPa pressure
Sequence valve 8, fuel tank is returned to after flowing through three six-way valves II 12；This 8MPa pressure is transmitted to internal hydraulic fluid port P by check valve I 9, this
When control port K1 there is no pressure, two four-way pilot operated directional control valves 17 are located at the straight line conduction position of right position under the action of the spring,
The pressure oil of internal hydraulic fluid port P is turned on through two four-way pilot operated directional control valves 17 with clamp holder clamping hydraulic fluid port A4, enters clamper 25
Clamping oil pocket in disc spring in auxiliary holder 25, clamper 25 is clamped drilling rod strength, effectively can prevent drilling rod from sliding.Control
Liquefaction mouth K2 does not have pressure, and two-bit triplet pilot operated directional control valve 20 is located at right position, the pressure oil warp of internal hydraulic fluid port P under the action of the spring
Two-bit triplet pilot operated directional control valve 20 is turned on chuck hydraulic fluid port A3, enters and drilling rod is clamped in oild chuck 26.
Into drill state when, first by three I 7 manual switchings of six-way valve to upper, main pump fluid passes through three six-way valves I
7 drive motors 23 rotate forward, while reach A of the fluid of actuator port A1 through internal galleries and two-bit triplet hand-operated direction valve I 16
Mouth reaches the control port K1 of two four-way pilot operated directional control valves 17, two four-way pilot operated directional control valves 17 is switched to left position, internal
The pressure oil of hydraulic fluid port P unclamps hydraulic fluid port B4 via two four-way pilot operated directional control valves 17, pressure reducing valve 18, clamper and reaches clamper 25
Hydraulic fluid port is unclamped, unclamps clamper 25, drilling rod rotates forward；Three six-way valves II 12 are switched into bottom again, auxiliary pump fluid is opened suitable
Sequence valve 8 reaches feed cylinder propulsion hydraulic fluid port A2 followed by three six-way valves II 12, balanced valve 14 and enters feed cylinder 24
Rod chamber, make feed cylinder 24 drive rotating drilling rod to advance.
When feed cylinder 24 proceeds to range, three six-way valves II 12 return to middle position, before feed cylinder 24 stops
Into, while three six-way valves I 7 return to middle position, hydraulic control motor 23 stops rotating.At this time, internal control hydraulic fluid port K1 pressure discharges, and two
Position four-way pilot operated directional control valve 17 automatically returns to right position under the action of resetting spring, clamps clamper 25, in the brill crept into
Bar afterbody installs a drilling rod additional；Then three six-way valves II 12 are switched to upper, the fluid entered by oil inlet P 1 passes through three
Six-way valve I 7 and three six-way valves II 12 enter the rodless cavity of feed cylinder 24, work at the same time the high-voltage oil liquids of hydraulic fluid port B2 discharges according to
Secondary flow through reaches control port K2 in upper 3-position 4-way hand-operated direction valve 13 and two-bit triplet hand-operated direction valve 19, makes two
Position threeway pilot operated directional control valve 20 commutates to left position, and the fluid in oild chuck 26 is via two-bit triplet pilot operated directional control valve 20 and throttling
Valve 22 flows to T2 hydraulic fluid ports and oil return box release, oild chuck 26 is unclamped drilling rod, so that feed cylinder 24 drives oild chuck
Retreat；When feed cylinder 24 is retreated to range, above-mentioned process of drilling is repeated, can realize throwing into successively for drilling rod.
During into trip-out state, 3-position 4-way hand-operated direction valve 13 is first switched to the straight line conduction position of bottom, then
Three six-way valves I 7 of switching are at upper, and main pump fluid rotates forward rotation motor 23 by three six-way valves I 7, while by
The fluid of actuator port A1 discharges reaches control port K1 through shuttle valve 15, two-bit triplet hand-operated direction valve I 16, makes two four-way liquid
Control reversal valve 17 is switched to left position, and the pressure oil of internal hydraulic fluid port P reaches folder via two four-way pilot operated directional control valves 17, pressure reducing valve 18
Holder unclamps hydraulic fluid port B4 and enters clamper 25, unclamps clamper 25, drilling rod rotates forward；Switching three six-way valves II 12 again makes it
In upper, auxiliary pump fluid opening sequence valve 8 flows through three six-way valves II 12 and reaches actuator port B2 and enter feed cylinder
24 rodless cavity, makes feed cylinder 24 drive rotating drilling rod to retreat.
Three six-way valves II 12 are controlled to return to middle position when feed cylinder 24 backs to range, feed cylinder 24 stops
Retreat, while three six-way valves I 7 return to middle position, hydraulic control motor 23 stops rotating.Internal control hydraulic fluid port K1 pressure discharges at this time,
Two four-way pilot operated directional control valves 17 automatically return to right position under the action of resetting spring, clamp clamper 25, and chuck 26 clamps；
Then switch three six-way valves I 7 to bottom, invert hydraulic control motor 23, the final section drilling rod clamped due to oild chuck 26
Reversely rotated under the driving of hydraulic control motor 23, therefore the section drilling rod can be made to thread off with drilling rod above；By actuator port B1
The fluid of output enters control port K3 through internal galleries, opens balanced valve 14, and feed cylinder 24 is in quick condition, make into
To oil cylinder 24 thread off at the same time automatic backing, avoid wound detain.
After final section drilling rod is completely disengaged, three six-way valves I 7 of switching arrive middle position, and hydraulic control motor 23 stalls；Switching two
Position threeway hand-operated direction valve 19 is to bottom, and high-voltage oil liquid reaches followed by two-bit triplet hand-operated direction valve 19 at internal hydraulic fluid port P
Control port K2, makes two-bit triplet pilot operated directional control valve 20 commutate to left position, the fluid in oild chuck 26 via chuck hydraulic fluid port A3,
Two-bit triplet pilot operated directional control valve 20, throttle valve 22 and oil return inlet T 2 return to fuel tank release, unclamp oild chuck 26, final section
Drilling rod comes off by dead weight, then switches two-bit triplet hand-operated direction valve 19 to upper, control port K2 pressure oils release, in reset bullet
The lower two-bit triplet pilot operated directional control valve 20 of spring effect commutates to right position, clamps oild chuck 26；
Then switch three six-way valves II 12 to bottom, the high-voltage oil liquid of internal work hydraulic fluid port A2 ＇ discharges and pass through balanced valve
14 enter in the rod chamber of feed cylinder 24, while the high-voltage oil liquid of internal work hydraulic fluid port A2 ＇ discharges is followed by 3-position 4-way
Hand-operated direction valve 13 and two-bit triplet hand-operated direction valve 19 reach control port K2, commutate to two-bit triplet pilot operated directional control valve 20
Left position, the fluid in oild chuck 26 is via chuck hydraulic fluid port A3, two-bit triplet pilot operated directional control valve 20, throttle valve 22 and oil return inlet T 2
Fuel tank release is returned to, oild chuck 26, which unclamps, makes feed cylinder 24 drive oild chuck 26 to advance；When feed cylinder 24 advances to
During range, above-mentioned trip-out process is repeated, can realize the taking-up successively of drilling rod.
Although the embodiment of the utility model is disclosed as above, it is not restricted in specification and embodiment
Listed utilization, it can be applied to the field of various suitable the utility model completely, for those skilled in the art,
Other modification is easily achieved, therefore under the universal limited without departing substantially from claim and equivalency range, this reality
Specific details is not limited to new and shown here as the legend with description.
Claims (8)
1. a kind of two-restriction formula underground drill rig multiple directional control valve, including be sequentially connected oil inlet valve block, rotary valve plate, shuttle valve valve block,
Feed valve block and switching valve block；The inlet valve on piece is equipped with oil inlet P 1 and oil return inlet T 1, for connecting underground drill rig main pump
And fuel tank；The rotary valve plate is used to connect oil inlet P 1 and oil return inlet T 1 and the forward and backward oil inlet of underground drill rig rotation motor
Mouthful；The feeding valve block is used to control the flexible of feed cylinder；
The shuttle valve valve block includes three check valves and a sequence valve；Shuttle valve valve block is equipped with auxiliary pump oil inlet P 2 and interior oil
Mouthful P, internal hydraulic fluid port P are connected by a check valve with actuator port A1, B1 and auxiliary pump oil inlet P 2 of rotary valve plate respectively, institute
Sequence valve is stated to be connected between auxiliary pump oil inlet P 2 and 2 ＇ of inside oil inlet P for feeding valve block；
The switching valve block includes 3-position 4-way hand-operated direction valve, two-bit triplet hand-operated direction valve I, two-bit triplet hand-operated direction valve
IIth, two-bit triplet pilot operated directional control valve, two four-way pilot operated directional control valves, balanced valve, shuttle valves；Feed cylinder is equipped with switching valve on piece
Hydraulic fluid port A2, clamp holder clamping hydraulic fluid port A4, clamper is promoted to unclamp hydraulic fluid port B4, chuck hydraulic fluid port A3, oil return inlet T 2；
The P mouths of the 3-position 4-way hand-operated direction valve are connected with the actuator port B2 of induction valve on piece by internal galleries, three
The T mouths of four-way hand-operated direction valve are connected with the internal work hydraulic fluid port A2 ＇ in feeding valve block by internal galleries；3-position 4-way is manual
The A mouths of reversal valve and the actuator port A1 of rotary valve plate pass through the shuttle valve and the T of the two-bit triplet hand-operated direction valve I respectively
Mouth connection, the B mouths of 3-position 4-way hand-operated direction valve are connected with the T mouths of two-bit triplet hand-operated direction valve II by internal galleries；
The P mouths of the two-bit triplet hand-operated direction valve I, II and two-bit triplet pilot operated directional control valve and two four-way pilot operated directional control valves
Connected respectively by internal galleries with the internal hydraulic fluid port P, A mouths and the two four-way hydraulic controls of two-bit triplet hand-operated direction valve I are changed
Control port K1 to valve is connected by internal galleries；
The A mouths and the control port K2 of two-bit triplet pilot operated directional control valve of the two-bit triplet hand-operated direction valve II pass through internal galleries
Connection；The T mouths of two-bit triplet pilot operated directional control valve are connected with oil return inlet T 2, A mouths and the chuck hydraulic fluid port of two-bit triplet pilot operated directional control valve
A3 is connected；For controlling the working status of oild chuck；The A mouths of two four-way pilot operated directional control valves and clamp holder clamping hydraulic fluid port A4, B
Mouth unclamps hydraulic fluid port B4 with clamper and is connected respectively by internal galleries, for controlling the working status of clamper；
Internal work hydraulic fluid port A2 ＇ in the feeding valve block promote hydraulic fluid port A2 to be connected by internal galleries with the feed cylinder,
And the balanced valve is located between internal work hydraulic fluid port A2 ＇ and feed cylinder promote hydraulic fluid port A2, the control port K3 of balanced valve with
The actuator port B1 of rotary valve plate is connected by internal galleries.
2. two-restriction formula underground drill rig multiple directional control valve according to claim 1, it is characterized in that：Inlet valve on piece be equipped with into
Main pump overflow valve is connected between hydraulic fluid port P1 and oil return inlet T 1, for setting main pump maximum pressure.
3. two-restriction formula underground drill rig multiple directional control valve according to claim 1, it is characterized in that：The rotary valve plate includes one
A three six-way valves I, it includes the actuator port A1 and B1, internal work hydraulic fluid port P1 ＇, internal oil return inlet T 3 and and oil inlet
The inside oil inlet of mouth P1 connections.
4. two-restriction formula underground drill rig multiple directional control valve according to claim 3, it is characterized in that：At three six-way valves I
When middle position, the oil inlet P 1 is turned on internal work hydraulic fluid port P1 ＇, and actuator port A1 and B1 is by internal oil return inlet T 3 with returning
Hydraulic fluid port T1 is turned on；When three six-way valves I be in it is upper when, the oil inlet P 1 is turned on actuator port A1, actuator port B1
Turned on by internal oil return inlet T 3 with oil return inlet T 1, oil inlet P 1 and internal work hydraulic fluid port P1 ＇ end；When three six-way valves I
During in bottom, the oil inlet P 1 is turned on actuator port B1, and actuator port A1 passes through internal oil return inlet T 3 and oil return inlet T 1
Conducting, oil inlet P 1 and internal work hydraulic fluid port P1 ＇ end.
5. two-restriction formula underground drill rig multiple directional control valve according to claim 1, it is characterized in that：The feeding valve block includes one
A manual three six-way valves II, it includes internal 2 ＇ of oil inlet P, actuator port B2, internal work hydraulic fluid port A2 ＇ and internal oil return
Mouth T4 and T5；Actuator port B2 is used for the rodless cavity for connecting feed cylinder；Internal work hydraulic fluid port A2 ＇ and the feeding of switching valve on piece
Oil cylinder promotes hydraulic fluid port A2 connections, and internal oil return inlet T 4 and T5 are connected by internal galleries with oil return inlet T 1 respectively.
6. two-restriction formula underground drill rig multiple directional control valve according to claim 5, it is characterized in that：At three six-way valves II
When middle position, internal 2 ＇ of oil inlet P is turned on by internal oil return inlet T 5 with oil return inlet T 1, internal work hydraulic fluid port A2 ＇ and work
Make hydraulic fluid port B2 to turn on oil return inlet T 1 by internal oil return inlet T 4；When three six-way valves II be in it is upper when, the inside into
Hydraulic fluid port P2 ＇ are turned on actuator port B2, and internal work hydraulic fluid port A2 ＇ are turned on by internal oil return inlet T 4 with oil return inlet T 1, it is internal into
Hydraulic fluid port P2 ＇ end with internal oil return inlet T 5；When three six-way valves II are in bottom, internal 2 ＇ of oil inlet P and inside
Actuator port A2 ＇ are turned on, and actuator port B2 is turned on by internal oil return inlet T 4 with oil return inlet T 1, internal 2 ＇ of oil inlet P and inside
Oil return inlet T 5 is ended.
7. two-restriction formula underground drill rig multiple directional control valve according to claim 1, it is characterized in that：In two four-way hydraulic controls
The B mouths and clamper of reversal valve are equipped with pressure reducing valve between unclamping hydraulic fluid port B4, for controlling the input pressure of clamper, so as to control
Its aperture size.
8. the two-restriction formula underground drill rig multiple directional control valve according to claim 1 or 7, it is characterized in that：In two-bit triplet hydraulic control
Throttle valve is equipped between the T mouths and oil return inlet T 2 of reversal valve, for controlling the oil return speed of oild chuck, so as to control its opening
Speed.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721201988.3U CN207246144U (en) | 2017-09-19 | 2017-09-19 | Two-restriction formula underground drill rig multiple directional control valve |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721201988.3U CN207246144U (en) | 2017-09-19 | 2017-09-19 | Two-restriction formula underground drill rig multiple directional control valve |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110469552A (en) * | 2019-09-17 | 2019-11-19 | 重庆平山矿山机电设备有限公司 | A kind of hydraulic system and drilling machine |
| CN110778557A (en) * | 2019-11-14 | 2020-02-11 | 锦州力特液压科技有限公司 | Multi-way reversing valve of multifunctional tunnel drilling machine |
| CN113847295A (en) * | 2021-10-18 | 2021-12-28 | 中煤科工集团重庆研究院有限公司 | Hydraulic control system and control method for coal mine linkage drilling machine |
-
2017
- 2017-09-19 CN CN201721201988.3U patent/CN207246144U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110469552A (en) * | 2019-09-17 | 2019-11-19 | 重庆平山矿山机电设备有限公司 | A kind of hydraulic system and drilling machine |
| CN110778557A (en) * | 2019-11-14 | 2020-02-11 | 锦州力特液压科技有限公司 | Multi-way reversing valve of multifunctional tunnel drilling machine |
| CN110778557B (en) * | 2019-11-14 | 2024-05-10 | 锦州力特液压科技有限公司 | Multi-way reversing valve of multifunctional tunnel drilling machine |
| CN113847295A (en) * | 2021-10-18 | 2021-12-28 | 中煤科工集团重庆研究院有限公司 | Hydraulic control system and control method for coal mine linkage drilling machine |
| CN113847295B (en) * | 2021-10-18 | 2023-11-10 | 中煤科工集团重庆研究院有限公司 | Hydraulic control system and control method for coal mine linkage drilling machine |
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