CN105134686B - Hydraulic speed regulating valve for coal mine downhole drill pipes and three-motor speed regulating system - Google Patents
Hydraulic speed regulating valve for coal mine downhole drill pipes and three-motor speed regulating system Download PDFInfo
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- CN105134686B CN105134686B CN201510695519.0A CN201510695519A CN105134686B CN 105134686 B CN105134686 B CN 105134686B CN 201510695519 A CN201510695519 A CN 201510695519A CN 105134686 B CN105134686 B CN 105134686B
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Abstract
The invention relates to the field of multistage speed regulating valves, particularly a hydraulic speed regulating valve for coal mine downhole drill pipes and a three-motor speed regulating system. The hydraulic speed regulating valve comprises a valve body, a valve core, an upper end cover and a lower end cover, wherein the valve core rotates in the axial direction in the valve body inner cavity; the upper end cover and the lower end cover are fixed to the upper end surface and the lower end surface of the valve body through bolts correspondingly; and a plurality of seal rings are installed between the inner wall of the valve body and the outer wall of the top of the valve core as well as between the inner wall of the valve body and the outer wall of the bottom of the valve core. The hydraulic speed regulating valve for coal mine downhole drill pipes can implement multistage regulation among three fixed displacement motor speeds or torques, and can even implement stepless regulation by matching with an additional control valve (spring resetting). The hydraulic speed regulating valve lowers the manufacturing cost of the drilling system, and enhances the adaptability of the drill rig to the complex geology. Besides, the hydraulic speed regulating valve has the advantages of simple structure and high reliability, is simple to operate, and is especially suitable for coal mine downhole usage.
Description
Technical field
The present invention relates to multistep speed regulation valve field, specifically a kind of underground coal mine drilling rod Hydraulic Adjustable Speed valve and three motors
Governing system.
Background technology
Underground coal mine is frequently necessary to carry out gas, the spy of water is put, or the probing in other operation holes, complex geologic conditions,
This requires that the equipment for drilling has stronger adaptability.Therefore down-hole rig（Car）Gradually toward major diameter, the direction of high torque
Develop to improve this ability.
Adjusting rate of penetration or moment of torsion needs a kind of crucial device-speed regulator.Existing mechanical deceleration device volume
It is big with weight, be not suitable for using in the limited space in down-hole, especially light section work surface.On the other hand, Hydraulic Adjustable Speed is also
Quickly grow, China Patent No. 201010509721.7 discloses a kind of " two clematis stem flow speed control valves of double-motor drive drilling machine ", should
Device can realize that 2 kinds of speed are adjusted, but speed adjustable range is limited, it is impossible to meet complicated working condition.China Patent No.
201310113790.X discloses " a kind of three-motor rotary multi-stage speed regulating valve ", and the device can realize the multistage speed of fixed displacement motor
Adjust, but complex structure, manufacture and maintenance cost height.
The content of the invention
The present invention is in order to solve the problems, such as that existing flow speed control valve speed adjustable range is limited, structure is excessively complicated, there is provided Yi Zhongmei
Ore deposit downhole tool Hydraulic Adjustable Speed valve and three motor governing systems.
The present invention is achieved by the following technical solutions：Underground coal mine drilling rod Hydraulic Adjustable Speed valve, including valve body, in valve
In intracoelomic cavity along its axial rotation valve element, bolt is fixed on valve body upper and lower end face respectively upper end cover and bottom end cover are described
Valve interior wall respectively with valve element at the top of, some sealing rings are installed between bottom outer wall,
The axially extending axostylus axostyle through upper end cover in the middle part of the valve element upper surface, the axostylus axostyle and upper end at upper end cover
Between lid, sealing is rotatably assorted, and is covered with the handle base of cover lid axostylus axostyle on upper end cover, and handle base is by through handle base and axostylus axostyle
Hinge on axostylus axostyle, positioned at the handle base ring portion lower surface of bearing pin side be with upper end cover upper surface be in sliding friction
Face directly, be high outside and low outside inclined-plane positioned at the handle base ring portion lower surface of bearing pin opposite side, and minimum point and the upper end on the inclined-plane
Cover；The inclined-plane side of handle base is provided with a blind hole from the bottom to top, is provided with compression spring, position in the blind hole
Slip is laid in the blind hole of compression spring bottom to be limited between compression spring bottom, blind hole inwall and upper end cover upper surface
Steel ball；Upper end cover upper surface is located on same circumference and is provided with three Blind locating holes, positioned at middle Blind locating holes center and phase
Angle between adjacent two Blind locating holes centers is 60 degree of angles, and the side of facing directly of handle base is embedded with and can be inserted with each Blind locating holes
The alignment pin of cooperation is connect, handle base top corresponding with alignment pin is provided with handle；
Be from top to bottom uniformly provided with successively on the valve body positioned at middle Blind locating holes homonymy A2 hydraulic fluid ports, A1 hydraulic fluid ports and
A3 hydraulic fluid ports, it is oily that the valve body opposite side relative respectively with A2 hydraulic fluid ports, A1 hydraulic fluid ports and A3 hydraulic fluid ports is from top to bottom uniformly provided with B1 successively
Mouth, B3 hydraulic fluid ports and B2 hydraulic fluid ports；
The valve element that sustained height is located at A2 hydraulic fluid ports and B1 hydraulic fluid ports is circumferentially evenly equipped with A in the direction of the clock successively22Hydraulic fluid port
Groove, A21Hydraulic fluid port groove, B11Hydraulic fluid port groove, B12Hydraulic fluid port groove, B13Hydraulic fluid port groove and A23Hydraulic fluid port groove, wherein A22Hydraulic fluid port is recessed
Groove and A21Hydraulic fluid port groove is connected, A21Hydraulic fluid port groove and B13Hydraulic fluid port groove is connected, B13Hydraulic fluid port groove and B12Hydraulic fluid port groove phase
Connection；
The valve element that sustained height is located at A1 hydraulic fluid ports and B3 hydraulic fluid ports is circumferentially provided with A in the direction of the clock successively12Hydraulic fluid port is recessed
Groove, B31Hydraulic fluid port groove, B32Hydraulic fluid port groove and A13Hydraulic fluid port groove；
The valve element that sustained height is located at A3 hydraulic fluid ports and B2 hydraulic fluid ports is circumferentially evenly equipped with A in the direction of the clock successively32Hydraulic fluid port
Groove, A31Hydraulic fluid port groove, B21Hydraulic fluid port groove, B22Hydraulic fluid port groove, B23Hydraulic fluid port groove and A33Hydraulic fluid port groove, wherein A31Hydraulic fluid port is recessed
Groove and B23Hydraulic fluid port groove is connected；
The A22Hydraulic fluid port groove, A12Hydraulic fluid port groove and A32Hydraulic fluid port groove is located on same vertical curve, A21Hydraulic fluid port groove with
A31Hydraulic fluid port groove is located on same vertical curve, B11Hydraulic fluid port groove, B31Hydraulic fluid port groove and B21Hydraulic fluid port groove is located at same vertical curve
On, B12Hydraulic fluid port groove, B32Hydraulic fluid port groove and B22On the same vertical curve of hydraulic fluid port groove, B13Hydraulic fluid port groove and B23Hydraulic fluid port groove position
On same vertical curve, A23Hydraulic fluid port groove, A13Hydraulic fluid port groove and A33Hydraulic fluid port groove is located on same vertical curve；
B11Hydraulic fluid port groove, B31Hydraulic fluid port groove and B21It is interconnected between hydraulic fluid port groove, A23Hydraulic fluid port groove, A13Hydraulic fluid port is recessed
Groove and A33It is interconnected between hydraulic fluid port groove, B32Hydraulic fluid port groove and B22It is connected between hydraulic fluid port groove, A12Hydraulic fluid port groove with
A32Hydraulic fluid port groove is connected；
The valve element is vertically provided with the via of connection valve element upper and lower end face, and the via is not recessed with any hydraulic fluid port
Groove is connected, and is located at middle Blind locating holes center and A on upper end cover 422Hydraulic fluid port groove center is located on same vertical semi-section,
The overfall of connection body cavity is provided with bottom end cover.
Further, the invention provides a kind of using the underground coal mine drilling rod three motor speed governing systems of Hydraulic Adjustable Speed valve
System, including in-line, outlet line, motor one, motor two and motor three,
The in-line is connected to A1 hydraulic fluid ports by left tee T, and the threeway of left tee T is connected to entering for motor one
On hydraulic fluid port, the oil-out of motor one is connected on B1 hydraulic fluid ports, and A2 hydraulic fluid ports are connected on the oil-in of motor two, motor two it is fuel-displaced
Mouth is connected on B2 hydraulic fluid ports, and A3 hydraulic fluid ports are connected on the oil-in of motor three, and the oil-out of motor three is connected by right tee T
To outlet line, the threeway of right tee T is connected on B3 hydraulic fluid ports, and overfall is connected to hydraulic oil container by overflow oil circuit.
When specifically used, when needing drill bit to work under the little torque condition of high speed, need to lift handle, in blind hole
Steel ball is coordinated with upper surface sliding, and Blind locating holes grafting of the alignment pin with the leftmost side is coordinated（Valve element is connected with ambient systems,
A states in correspondence Fig. 7）, the A of valve element21Hydraulic fluid port groove is connected with the A2 hydraulic fluid ports of valve body, the B of valve element13Hydraulic fluid port groove and valve body
B1 hydraulic fluid ports connection, realize that A2 is connected with B1 hydraulic fluid ports, A1 with B3 hydraulic fluid ports are not connected；The A of valve element31Hydraulic fluid port groove is oily with the A3 of valve body
Mouth connection, the B of valve element23Hydraulic fluid port groove is connected with the B2 hydraulic fluid ports of valve body, realizes that A3 is connected with B2.Hydraulic oil passes through in-line Jing
Left tee T reaches motor one → B1 hydraulic fluid ports → A2 hydraulic fluid ports → two → B2 of motor hydraulic fluid ports → A3 hydraulic fluid ports → motor three.Therefore 3 are realized
The concatenation function of individual motor, so as to provide high speed little moment of torsion.
When needing drill bit to work under low-speed big state, Blind locating holes grafting of the alignment pin with the rightmost side is matched somebody with somebody
Close（Valve element is connected with ambient systems, the c states in correspondence Fig. 7）, the A of valve element23Hydraulic fluid port groove is connected with the A2 hydraulic fluid ports of valve body, valve
The B of core11Hydraulic fluid port groove is connected with the B1 hydraulic fluid ports of valve body；The A of valve element13Hydraulic fluid port groove is connected with the A1 hydraulic fluid ports of valve body, the B of valve element31
Hydraulic fluid port groove is connected with the B3 hydraulic fluid ports of valve body；The A of valve element33Hydraulic fluid port groove is connected with the A3 hydraulic fluid ports of valve body, the B of valve element21Hydraulic fluid port is recessed
Groove is connected with the B2 hydraulic fluid ports of valve body；A1, A2, A3 hydraulic fluid port intercommunication, B1, B2, B3 hydraulic fluid port intercommunication can so be realized.Hydraulic pressure all the way
Oily Jing motors one → B1 hydraulic fluid ports → B3 hydraulic fluid ports；Hydraulic oil Jing A1 hydraulic fluid ports → A2 hydraulic fluid ports → two → B2 of motor hydraulic fluid ports → B3 is oily all the way
Mouthful；Hydraulic oil Jing A1 hydraulic fluid ports → A3 hydraulic fluid ports → motor three all the way.Therefore the parallel function of 3 motors is realized, so as to provide low speed
High pulling torque.
When need drill bit in middling speed and the moderate state of moment of torsion under work when, by alignment pin with centre Blind locating holes grafting
Coordinate（Valve element is connected with ambient systems, the b states in correspondence Fig. 7）, the A of valve element22Hydraulic fluid port groove is connected with the A2 hydraulic fluid ports of valve body,
The B of valve element12Hydraulic fluid port groove is connected with the B1 hydraulic fluid ports of valve body, realizes that A2 is connected with B1；The A of valve element12The A1 of hydraulic fluid port groove and valve body
Hydraulic fluid port is connected, the B of valve element32Hydraulic fluid port groove is connected with the B3 hydraulic fluid ports of valve body, the A of valve element32Hydraulic fluid port groove is connected with the A3 hydraulic fluid ports of valve body
It is logical, the B of valve element22Hydraulic fluid port groove is connected with the B2 hydraulic fluid ports of valve body, realizes A1 and A3 intercommunications, B2 and B3 intercommunications.Hydraulic oil Jing all the way
One → B1 of motor hydraulic fluid ports → A2 hydraulic fluid ports → two → B2 of motor hydraulic fluid ports → B3 hydraulic fluid ports；Hydraulic oil Jing A1 hydraulic fluid ports → A3 hydraulic fluid ports → horse all the way
Up to three.Therefore realize that motor one and motor two are in parallel with motor three after connecting, so as to provide middling speed and moment of torsion is moderate.
Additionally, when load pressure is excessive, hydraulic oil can along the sealing ring overflow of valve element to valve element and upper end cover or
In cavity between valve element and bottom end cover；Hydraulic oil between valve element and upper end cover is by via overflow to valve element and bottom end cover
Between cavity in, be back to hydraulic oil container eventually through the spout hole of bottom end cover, so as to avoid flow speed control valve not because of pressure mistake
Carry and damage.
Underground coal mine drilling rod Hydraulic Adjustable Speed valve of the present invention, can realize 3 fixed displacement motor speed or moment of torsion
It is multistage adjustable, or even coordinate additional control valve（Spring reset）Realize stepless adjustable.The manufacturing cost of drilling system is reduced, is carried
Adaptability of the high drill carriage to complex geological condition.Additionally, simple structure, simple to operate, reliability are high, it is particularly suitable for coal mine
Lower use.
Description of the drawings
Fig. 1 is the sectional side elevation of underground coal mine drilling rod Hydraulic Adjustable Speed valve of the present invention.
Fig. 2 is the top view of underground coal mine drilling rod Hydraulic Adjustable Speed valve of the present invention.
Front views of the Fig. 3 for valve element.
A-A sectional views of the Fig. 4 for Fig. 3.
B-B sectional views of the Fig. 5 for Fig. 3.
C-C sectional views of the Fig. 6 for Fig. 3.
Fig. 7 is the connection diagram of three motor governing systems using the underground coal mine drilling rod Hydraulic Adjustable Speed valve.
In figure：1- valve bodies, 2- valve elements, 3- sealing rings, 4- upper end covers, 5- bottom end covers, 6- handle bases, 7- hydraulic oil containers, 8-
Axostylus axostyle, 9- compression springs, 10- steel balls, 11- handles, 12- vias, the left tee Ts of 13-, the right tee Ts of 14-, 15- motors one,
16- motors two, 17- motors three, 18- alignment pins, P- in-lines, T- outlet line, R- overfalls.
Specific embodiment
Underground coal mine drilling rod Hydraulic Adjustable Speed valve, including valve body 1, the valve element 2 in 1 inner chamber of valve body along its axial rotation,
Bolt is fixed on 1 upper and lower end face of valve body respectively upper end cover 4 and bottom end cover 5,1 inwall of the valve body respectively with valve element 2 at the top of,
Some sealing rings 3 are installed between bottom outer wall,
The axially extending axostylus axostyle 8 through upper end cover 4, the axostylus axostyle 8 at upper end cover 4 in the middle part of 2 upper surface of the valve element
Seal between upper end cover 4 and be rotatably assorted, on upper end cover 4, be covered with the handle base 6 of cover lid axostylus axostyle 8, handle base 6 is by through handle
The hinge of handss seat 6 and axostylus axostyle 8 on axostylus axostyle 8, positioned at the 6 ring portion lower surface of handle base of bearing pin side be with upper end cover 4
End face facing directly in sliding friction, the 6 ring portion lower surface of handle base positioned at bearing pin opposite side is high outside and low outside inclined-plane, and this is oblique
The minimum point in face and upper end cover have gap between 4 upper surface；The inclined-plane side of handle base 6 is provided with a blind hole from the bottom to top, the blind hole
Compression spring 9 is inside installed, is laid slip in the blind hole of 9 bottom of compression spring and is limited in 9 bottom of compression spring, blind hole
Steel ball 10 between 4 upper surface of inwall and upper end cover；4 upper surface of upper end cover is located on same circumference and is provided with three Blind locating holes,
Angle between middle Blind locating holes center and adjacent two Blind locating holes center is 60 degree of angles, handle base 6 it is straight
Surface side is embedded with the alignment pin 18 with the pluggable cooperation of each Blind locating holes, with 18 corresponding handle base of alignment pin, 6 top
Handle 11 is installed；
Be from top to bottom uniformly provided with A2 hydraulic fluid ports, A1 hydraulic fluid ports successively on the valve body 1 positioned at middle Blind locating holes homonymy with
And A3 hydraulic fluid ports, valve body 1 opposite side relative respectively with A2 hydraulic fluid ports, A1 hydraulic fluid ports and A3 hydraulic fluid ports be from top to bottom uniformly provided with B1 successively
Hydraulic fluid port, B3 hydraulic fluid ports and B2 hydraulic fluid ports；
The valve element 2 that sustained height is located at A2 hydraulic fluid ports and B1 hydraulic fluid ports is circumferentially evenly equipped with A in the direction of the clock successively22Hydraulic fluid port
Groove, A21Hydraulic fluid port groove, B11Hydraulic fluid port groove, B12Hydraulic fluid port groove, B13Hydraulic fluid port groove and A23Hydraulic fluid port groove, wherein A22Hydraulic fluid port is recessed
Groove and A21Hydraulic fluid port groove is connected, A21Hydraulic fluid port groove and B13Hydraulic fluid port groove is connected, B13Hydraulic fluid port groove and B12Hydraulic fluid port groove phase
Connection；
The valve element 2 that sustained height is located at A1 hydraulic fluid ports and B3 hydraulic fluid ports is circumferentially provided with A in the direction of the clock successively12Hydraulic fluid port is recessed
Groove, B31Hydraulic fluid port groove, B32Hydraulic fluid port groove and A13Hydraulic fluid port groove；
The valve element 2 that sustained height is located at A3 hydraulic fluid ports and B2 hydraulic fluid ports is circumferentially evenly equipped with A in the direction of the clock successively32Hydraulic fluid port
Groove, A31Hydraulic fluid port groove, B21Hydraulic fluid port groove, B22Hydraulic fluid port groove, B23Hydraulic fluid port groove and A33Hydraulic fluid port groove, wherein A31Hydraulic fluid port is recessed
Groove and B23Hydraulic fluid port groove is connected；
The A22Hydraulic fluid port groove, A12Hydraulic fluid port groove and A32Hydraulic fluid port groove is located on same vertical curve, A21Hydraulic fluid port groove with
A31Hydraulic fluid port groove is located on same vertical curve, B11Hydraulic fluid port groove, B31Hydraulic fluid port groove and B21Hydraulic fluid port groove is located at same vertical curve
On, B12Hydraulic fluid port groove, B32Hydraulic fluid port groove and B22On the same vertical curve of hydraulic fluid port groove, B13Hydraulic fluid port groove and B23Hydraulic fluid port groove position
On same vertical curve, A23Hydraulic fluid port groove, A13Hydraulic fluid port groove and A33Hydraulic fluid port groove is located on same vertical curve；
B11Hydraulic fluid port groove, B31Hydraulic fluid port groove and B21It is interconnected between hydraulic fluid port groove, A23Hydraulic fluid port groove, A13Hydraulic fluid port is recessed
Groove and A33It is interconnected between hydraulic fluid port groove, B32Hydraulic fluid port groove and B22It is connected between hydraulic fluid port groove, A12Hydraulic fluid port groove with
A32Hydraulic fluid port groove is connected；
The valve element 2 is vertically provided with the via 12 of connection valve element 2 upper and lower end face, the via 12 not with it is any
Hydraulic fluid port groove is connected, and is located at middle Blind locating holes center and A on upper end cover 422Hydraulic fluid port groove center is located at same vertical half
On section, the overfall R of connection 1 inner chamber of valve body on bottom end cover 5, is provided with.
When being embodied as, using the underground coal mine drilling rod three motor governing systems of Hydraulic Adjustable Speed valve, including oil-feed
Pipeline P, outlet line T, motor 1, motor 2 16 and motor 3 17,
The in-line P is connected to A1 hydraulic fluid ports by left tee T 13, and the threeway of left tee T 13 is connected to motor
On one 15 oil-in, the oil-out of motor 1 is connected on B1 hydraulic fluid ports, and A2 hydraulic fluid ports are connected on the oil-in of motor 2 16,
The oil-out of motor 2 16 is connected on B2 hydraulic fluid ports, and A3 hydraulic fluid ports are connected on the oil-in of motor 3 17, motor 3 17 it is fuel-displaced
Mouth is connected to outlet line T by right tee T 14, and the threeway of right tee T 14 is connected on B3 hydraulic fluid ports, and overfall R passes through
Overflow oil circuit is connected to hydraulic oil container 7.
Claims (2)
1. underground coal mine drilling rod Hydraulic Adjustable Speed valve, including valve body（1）, in valve body（1）In inner chamber along its axial rotation valve element
（2）, respectively bolt be fixed on valve body（1）Upper end cover on upper and lower end face（4）And bottom end cover（5）, the valve body（1）Inwall is distinguished
With valve element（2）Some sealing rings are installed between top, bottom outer wall（3）, it is characterised in that
The valve element（2）It is axially extending through upper end cover in the middle part of upper surface（4）Axostylus axostyle（8）, positioned at upper end cover（4）The axle at place
Bar（8）With upper end cover（4）Between seal and be rotatably assorted, upper end cover（4）On be covered with cover lid axostylus axostyle（8）Handle base（6）, handle
Seat（6）By through handle base（6）And axostylus axostyle（8）Hinge in axostylus axostyle（8）On, positioned at the handle base of bearing pin side（6）
Ring portion lower surface is and upper end cover（4）Upper surface facing directly in sliding friction, positioned at the handle base of bearing pin opposite side（6）Under ring portion
End face is high outside and low outside inclined-plane, and minimum point and the upper end cover on the inclined-plane（4）There is gap between upper surface；Handle base（6）'s
Inclined-plane side is provided with a blind hole from the bottom to top, is provided with compression spring in the blind hole（9）, positioned at compression spring（9）The blind hole of bottom
Inside lay slip and be limited in compression spring（9）Bottom, blind hole inwall and upper end cover（4）Steel ball between upper surface（10）；
Upper end cover（4）Upper surface is located on same circumference and is provided with three Blind locating holes, positioned at middle Blind locating holes center and phase
Angle between adjacent two Blind locating holes centers is 60 degree of angles, handle base（6）Face directly side be embedded with it is equal with each Blind locating holes
The alignment pin of pluggable cooperation（18）, with alignment pin（18）Corresponding handle base（6）Top is provided with handle（11）；
With the valve body positioned at middle Blind locating holes homonymy（1）On be from top to bottom uniformly provided with successively A2 hydraulic fluid ports, A1 hydraulic fluid ports and
A3 hydraulic fluid ports, the valve body relative respectively with A2 hydraulic fluid ports, A1 hydraulic fluid ports and A3 hydraulic fluid ports（1）Opposite side is from top to bottom uniformly provided with B1 successively
Hydraulic fluid port, B3 hydraulic fluid ports and B2 hydraulic fluid ports；
The valve element of sustained height is located at A2 hydraulic fluid ports and B1 hydraulic fluid ports（2）A is evenly equipped with the direction of the clock successively circumferentially22Hydraulic fluid port is recessed
Groove, A21Hydraulic fluid port groove, B11Hydraulic fluid port groove, B12Hydraulic fluid port groove, B13Hydraulic fluid port groove and A23Hydraulic fluid port groove, wherein A22Hydraulic fluid port groove
With A21Hydraulic fluid port groove is connected, A21Hydraulic fluid port groove and B13Hydraulic fluid port groove is connected, B13Hydraulic fluid port groove and B12Hydraulic fluid port groove is connected
It is logical；
The valve element of sustained height is located at A1 hydraulic fluid ports and B3 hydraulic fluid ports（2）A is provided with the direction of the clock successively circumferentially12Hydraulic fluid port is recessed
Groove, B31Hydraulic fluid port groove, B32Hydraulic fluid port groove and A13Hydraulic fluid port groove；
The valve element of sustained height is located at A3 hydraulic fluid ports and B2 hydraulic fluid ports（2）A is evenly equipped with the direction of the clock successively circumferentially32Hydraulic fluid port is recessed
Groove, A31Hydraulic fluid port groove, B21Hydraulic fluid port groove, B22Hydraulic fluid port groove, B23Hydraulic fluid port groove and A33Hydraulic fluid port groove, wherein A31Hydraulic fluid port groove
With B23Hydraulic fluid port groove is connected；
The A22Hydraulic fluid port groove, A12Hydraulic fluid port groove and A32Hydraulic fluid port groove is located on same vertical curve, A21Hydraulic fluid port groove and A31Oil
Port recess is located on same vertical curve, B11Hydraulic fluid port groove, B31Hydraulic fluid port groove and B21Hydraulic fluid port groove is located on same vertical curve,
B12Hydraulic fluid port groove, B32Hydraulic fluid port groove and B22On the same vertical curve of hydraulic fluid port groove, B13Hydraulic fluid port groove and B23Hydraulic fluid port groove is located at
On same vertical curve, A23Hydraulic fluid port groove, A13Hydraulic fluid port groove and A33Hydraulic fluid port groove is located on same vertical curve；
B11Hydraulic fluid port groove, B31Hydraulic fluid port groove and B21It is interconnected between hydraulic fluid port groove, A23Hydraulic fluid port groove, A13Hydraulic fluid port groove with
And A33It is interconnected between hydraulic fluid port groove, B32Hydraulic fluid port groove and B22It is connected between hydraulic fluid port groove, A12Hydraulic fluid port groove and A32Oil
Port recess is connected；
The valve element（2）Connection valve element is provided with vertically（2）The via of upper and lower end face（12）, the via（12）Not with
Any hydraulic fluid port groove is connected, upper end cover（4）Upper Blind locating holes center and A positioned at centre22Hydraulic fluid port groove center is located at same
Vertically on semi-section, bottom end cover（5）On be provided with connection valve body（1）The overfall of inner chamber（R）.
2. a kind of three motor governing system, it is characterised in that system that employs underground coal mine drilling rod liquid described in claim 1
Pressure flow speed control valve, three motor governing system includes in-line（P）, outlet line（T）, motor one（15）, motor two
（16）And motor three（17）,
The in-line（P）By left tee T（13）It is connected to A1 hydraulic fluid ports, left tee T（13）Threeway be connected to horse
Up to one（15）Oil-in on, motor one（15）Oil-out be connected on B1 hydraulic fluid ports, A2 hydraulic fluid ports are connected to motor two（16）'s
On oil-in, motor two（16）Oil-out be connected on B2 hydraulic fluid ports, A3 hydraulic fluid ports are connected to motor three（17）Oil-in on, horse
Up to three（17）Oil-out pass through right tee T（14）It is connected to outlet line（T）, right tee T（14）Threeway be connected to
On B3 hydraulic fluid ports, overfall（R）Hydraulic oil container is connected to by overflow oil circuit（7）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510695519.0A CN105134686B (en) | 2015-10-26 | 2015-10-26 | Hydraulic speed regulating valve for coal mine downhole drill pipes and three-motor speed regulating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510695519.0A CN105134686B (en) | 2015-10-26 | 2015-10-26 | Hydraulic speed regulating valve for coal mine downhole drill pipes and three-motor speed regulating system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105134686A CN105134686A (en) | 2015-12-09 |
| CN105134686B true CN105134686B (en) | 2017-03-22 |
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| CN201510695519.0A Active CN105134686B (en) | 2015-10-26 | 2015-10-26 | Hydraulic speed regulating valve for coal mine downhole drill pipes and three-motor speed regulating system |
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| CN107630845B (en) * | 2017-09-07 | 2024-04-12 | 浙江志高机械股份有限公司 | Drilling machine rotation control device capable of switching high and low rotation speeds and torque |
| CN114704561B (en) * | 2022-04-27 | 2024-01-26 | 上海辛金路流体技术有限公司 | Synchronous clutch for power head of drilling machine |
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2015
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3633617A (en) * | 1970-01-28 | 1972-01-11 | Parker Hannifin Corp | Fluid system and valve assembly therefor |
| US4028996A (en) * | 1975-01-30 | 1977-06-14 | Zahnradfabrik Friedrichshafen Ag | Adjustable bypass valve to effect steering limits in booster power steering system |
| US4130049A (en) * | 1977-04-07 | 1978-12-19 | Caterpillar Tractor Co. | Vent control for cylinder mounted load check valves |
| CN201810606U (en) * | 2010-10-15 | 2011-04-27 | 镇江安达煤矿专用设备有限公司 | Double-motor drive drilling machine double-position six-way speed regulating valve |
| CN103148044A (en) * | 2013-04-03 | 2013-06-12 | 郑州宇通重工有限公司 | Three-motor rotary multi-stage speed regulating valve |
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| Publication number | Publication date |
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| CN105134686A (en) | 2015-12-09 |
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