CN105134686A - 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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- CN105134686A CN105134686A CN201510695519.0A CN201510695519A CN105134686A CN 105134686 A CN105134686 A CN 105134686A CN 201510695519 A CN201510695519 A CN 201510695519A CN 105134686 A CN105134686 A CN 105134686A
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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, a plurality of seal rings, 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 seal rings are respectively installed between the outer wall (of the top and bottom of the valve core) and the inner wall of the valve body; and the upper end cover and lower end cover are respectively fixed to the upper and lower end surfaces of the valve body through bolts. 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 motor governing system.
Background technique
Underground coal mine often needs to carry out gas, the spy of water is put, or the probing in other operation hole, complex geologic conditions, and this just requires that the equipment of holing has stronger adaptive capacity.Therefore down-hole rig (car) improves this ability toward the future development of major diameter, high moment of torsion gradually.
Rate of penetration or moment of torsion is regulated to need a kind of device-speed regulator of key.Existing mechanical deceleration device volume and weight is large, is not suitable for the space limited in down-hole and uses, especially light section working surface.On the other hand, Hydraulic Adjustable Speed is also that development is rapid, and China Patent No. 201010509721.7 discloses one " double-motor drive drilling machine two six leads to series flow control valve ", and this device can realize 2 kinds of speed and regulate, but speed adjustable range is limited, complicated working condition can not be met.China Patent No. 201310113790.X discloses " a kind of three motors revolution multistep speed regulation valves ", and the multistage speed that this device can realize fixed displacement motor regulates, but complex structure, manufacture and maintenance cost high.
Summary of the invention
The problem that existing series flow control valve speed adjustable range is limited in order to solve in the present invention, structure is too complicated, provides a kind of underground coal mine drilling rod Hydraulic Adjustable Speed valve and three motor governing system.
The present invention is achieved by the following technical solutions: underground coal mine drilling rod Hydraulic Adjustable Speed valve, comprise valve body, in body cavity along the spool of its axial rotation, be installed on spool top and the some seal rings between bottom outer wall and valve interior wall respectively, bolt is fixed on upper end cap on valve body upper and lower end face and lower end cap respectively
The axostylus axostyle of upper end cap is extended through vertically in the middle part of described spool upper-end surface, axostylus axostyle at upper end cap place coordinates with sealed rotational between upper end cap, upper end cap is covered with the handle base of cover cap axostylus axostyle, handle base is by running through the hinge of itself and axostylus axostyle on axostylus axostyle, the handle base ring portion lower end surface being positioned at bearing pin side is be facing directly of sliding friction with upper end cap upper-end surface, the handle base ring portion lower end surface being positioned at bearing pin opposite side is high outside and low outside inclined-plane, and has gap between the minimum point on this inclined-plane and upper end cap upper-end surface; The side, inclined-plane of handle base has a blind hole from the bottom to top, is provided with Compress Spring in this blind hole, lays the steel ball sliding and be limited between Compress Spring bottom, blind hole inwall and upper end cap upper-end surface in the blind hole of Compress Spring bottom; Upper end cap upper-end surface is positioned at and samely circumferentially has three Blind locating holes, angle between the Blind locating holes center and adjacent two Blind locating holes centers of centre is 60 degree of angles, the side of facing directly of handle base is embedded with the alignment pin that coordinate all pluggable with each Blind locating holes, and the handle base top corresponding with alignment pin is provided with handle;
Have A2 hydraulic fluid port, A1 hydraulic fluid port and A3 hydraulic fluid port with uniform successively on the valve body being positioned at middle Blind locating holes homonymy from top to bottom, the valve body opposite side relative respectively with A2 hydraulic fluid port, A1 hydraulic fluid port and A3 hydraulic fluid port is uniform successively from top to bottom has B1 hydraulic fluid port, B3 hydraulic fluid port and B2 hydraulic fluid port;
The spool being positioned at sustained height with A2 hydraulic fluid port and B1 hydraulic fluid port is circumferentially evenly equipped with A in the direction of the clock successively
22hydraulic fluid port groove, A
21hydraulic fluid port groove, B
11hydraulic fluid port groove, B
12hydraulic fluid port groove, B
13hydraulic fluid port groove and A
23hydraulic fluid port groove, wherein A
22hydraulic fluid port groove and A
21hydraulic fluid port groove is connected, A
21hydraulic fluid port groove and B
13hydraulic fluid port groove is connected, B
13hydraulic fluid port groove and B
12hydraulic fluid port groove is connected;
The spool being positioned at sustained height with A1 hydraulic fluid port and B3 hydraulic fluid port circumferentially has A in the direction of the clock successively
12hydraulic fluid port groove, B
31hydraulic fluid port groove, B
32hydraulic fluid port groove and A
13hydraulic fluid port groove;
The spool being positioned at sustained height with A3 hydraulic fluid port and A3 hydraulic fluid port is circumferentially evenly equipped with A in the direction of the clock successively
32hydraulic fluid port groove, A
31hydraulic fluid port groove, B
21hydraulic fluid port groove, B
22hydraulic fluid port groove, B
23hydraulic fluid port groove and A
33hydraulic fluid port groove, wherein A
31hydraulic fluid port groove and B
23hydraulic fluid port groove is connected;
Described A
22hydraulic fluid port groove, A
12hydraulic fluid port groove and A
32hydraulic fluid port groove is positioned on same vertical curve, A
21hydraulic fluid port groove and A
31hydraulic fluid port groove is positioned on same vertical curve, B
11hydraulic fluid port groove, B
31hydraulic fluid port groove and B
21hydraulic fluid port groove is positioned on same vertical curve, B
12hydraulic fluid port groove, B
32hydraulic fluid port groove and B
22on the same vertical curve of hydraulic fluid port groove, B
13hydraulic fluid port groove and B
23hydraulic fluid port groove is positioned on same vertical curve, A
23hydraulic fluid port groove, A
13hydraulic fluid port groove and A
33hydraulic fluid port groove is positioned on same vertical curve;
B
11hydraulic fluid port groove, B
31hydraulic fluid port groove and B
21be interconnected between hydraulic fluid port groove, A
23hydraulic fluid port groove, A
13hydraulic fluid port groove and A
33be interconnected between hydraulic fluid port groove, B
32hydraulic fluid port groove and B
22be connected between hydraulic fluid port groove, A
12hydraulic fluid port groove and A
32hydraulic fluid port groove is connected;
Described spool vertically has the via being communicated with spool upper and lower end face, and this via is not connected with any hydraulic fluid port groove, upper end cap 4 is positioned at middle Blind locating holes center and A
22hydraulic fluid port groove center is positioned on same vertical semi-section, lower end cap has the flow-off of connecting valve intracoelomic cavity.
Further, the invention provides a kind of three motor governing system adopting described underground coal mine drilling rod Hydraulic Adjustable Speed valve, comprise in-line, outlet line, motor one, motor two and motor three,
Described in-line is connected to A1 hydraulic fluid port by left three-way pipe, the threeway of left three-way pipe is connected on the filler opening of motor one, the oil outlet of motor one is connected on B1 hydraulic fluid port, A2 hydraulic fluid port is connected on the filler opening of motor two, the oil outlet of motor two is connected on B2 hydraulic fluid port, and A3 hydraulic fluid port is connected on the filler opening of motor three, and the oil outlet of motor three is connected to outlet line by right three-way pipe, the threeway of right three-way pipe is connected on B3 hydraulic fluid port, and flow-off is connected to hydraulic oil container by overflow oil circuit.
During concrete use, when needs drill bit works under the little torque condition of high speed, need handle to lift, steel ball in blind hole coordinates with upper-end surface slippage, alignment pin is coordinated with the Blind locating holes grafting of the leftmost side (spool is communicated with ambient systems, a state in corresponding diagram 7), the A of spool
21hydraulic fluid port groove is communicated with the A2 hydraulic fluid port of valve body, the B of spool
13hydraulic fluid port groove is communicated with the B1 hydraulic fluid port of valve body, and realize A2 and B1 hydraulic fluid port and be communicated with, A1 with B3 hydraulic fluid port is not communicated with; The A of spool
31hydraulic fluid port groove is communicated with the A3 hydraulic fluid port of valve body, the B of spool
23hydraulic fluid port groove is communicated with the B2 hydraulic fluid port of valve body, realizes A3 and B2 and is communicated with.Hydraulic oil arrives motor one → B1 hydraulic fluid port → A2 hydraulic fluid port → motor two → B2 hydraulic fluid port → A3 hydraulic fluid port → motor three by in-line through left three-way pipe.Therefore realize the concatenation function of 3 motors, thus provide high speed little moment of torsion.
When needs drill bit works under low-speed big state, alignment pin is coordinated with the Blind locating holes grafting of the rightmost side (spool is communicated with ambient systems, the c state in corresponding diagram 7), the A of spool
23hydraulic fluid port groove is communicated with the A2 hydraulic fluid port of valve body, the B of spool
11hydraulic fluid port groove is communicated with the B1 hydraulic fluid port of valve body; The A of spool
13hydraulic fluid port groove is communicated with the A1 hydraulic fluid port of valve body, the B of spool
31hydraulic fluid port groove is communicated with the B3 hydraulic fluid port of valve body; The A of spool
33hydraulic fluid port groove is communicated with the A3 hydraulic fluid port of valve body, the B of spool
21hydraulic fluid port groove is communicated with the B2 hydraulic fluid port of valve body; The intercommunication of A1, A2, A3 hydraulic fluid port can be realized like this, the intercommunication of B1, B2, B3 hydraulic fluid port.One road hydraulic oil is through motor one → B1 hydraulic fluid port → B3 hydraulic fluid port; One road hydraulic oil is through A1 hydraulic fluid port → A2 hydraulic fluid port → motor two → B2 hydraulic fluid port → B3 hydraulic fluid port; One road hydraulic oil is through A1 hydraulic fluid port → A3 hydraulic fluid port → motor three.Therefore realize the parallel function of 3 motors, thus low-speed big is provided.
When needs drill bit is in middling speed and when working under the moderate state of moment of torsion, alignment pin is coordinated (spool is communicated with ambient systems, the b state in corresponding diagram 7) with middle Blind locating holes grafting, the A of spool
22hydraulic fluid port groove is communicated with the A2 hydraulic fluid port of valve body, the B of spool
12hydraulic fluid port groove is communicated with the B1 hydraulic fluid port of valve body, realizes A2 and B1 and is communicated with; The A of spool
12hydraulic fluid port groove is communicated with the A1 hydraulic fluid port of valve body, the B of spool
32hydraulic fluid port groove is communicated with the B3 hydraulic fluid port of valve body, the A of spool
32hydraulic fluid port groove is communicated with the A3 hydraulic fluid port of valve body, the B of spool
22hydraulic fluid port groove is communicated with the B2 hydraulic fluid port of valve body, realizes A1 and A3 intercommunication, B2 and B3 intercommunication.One road hydraulic oil is through motor one → B1 hydraulic fluid port → A2 hydraulic fluid port → motor two → B2 hydraulic fluid port → B3 hydraulic fluid port; One road hydraulic oil is through A1 hydraulic fluid port → A3 hydraulic fluid port → motor three.Therefore realize after motor one and motor two are connected in parallel with motor three, thus provide middling speed and moment of torsion is moderate.
In addition, when induced pressure is excessive, hydraulic oil can along the seal ring overflow of spool in spool and upper end cap or the cavity between spool and lower end cap; Hydraulic oil between spool and upper end cap is by via overflow in the cavity between spool and lower end cap, and the overflow hole eventually through lower end cap is back to hydraulic oil container, thus avoids series flow control valve and do not damage because of pressure overload.
Underground coal mine drilling rod Hydraulic Adjustable Speed valve of the present invention, 3 fixed displacement motor speed can be realized or moment of torsion multistage adjustable, even coordinate additional control valve (spring reset) to realize stepless adjustable.Reduce the manufacture cost of drilling system, improve drill carriage to the adaptive capacity of complex geological condition.In addition, structure is simple, simple to operate, reliability is high, is particularly suitable for underground coal mine and uses.
Accompanying drawing explanation
Fig. 1 is the longitudinal section of underground coal mine drilling rod Hydraulic Adjustable Speed valve of the present invention.
Fig. 2 is the plan view of underground coal mine drilling rod Hydraulic Adjustable Speed valve of the present invention.
Fig. 3 is the plan view of spool.
Fig. 4 is the A-A sectional view of Fig. 3.
Fig. 5 is the B-B sectional view of Fig. 3.
Fig. 6 is the C-C sectional view of Fig. 3.
Fig. 7 is the connection diagram of three motor governing system adopting described underground coal mine drilling rod Hydraulic Adjustable Speed valve.
In figure: 1-valve body, 2-spool, 3-seal ring, 4-upper end cap, 5-lower end cap, 6-handle base, 7-hydraulic oil container, 8-axostylus axostyle, 9-Compress Spring, 10-steel ball, 11-handle, 12-via, the left three-way pipe of 13-, the right three-way pipe of 14-, 15-motor one, 16-motor two, 17-motor three, 18-alignment pin, P-in-line, T-outlet line, R-flow-off.
Embodiment
Underground coal mine drilling rod Hydraulic Adjustable Speed valve, comprise valve body 1, in valve body 1 inner chamber along the spool 2 of its axial rotation, be installed on spool 2 top and the some seal rings 3 between bottom outer wall and valve body 1 inwall respectively, bolt is fixed on upper end cap 4 on valve body 1 upper and lower end face and lower end cap 5 respectively
The axostylus axostyle 8 of upper end cap 4 is extended through vertically in the middle part of described spool 2 upper-end surface, axostylus axostyle 8 at upper end cap 4 place coordinates with sealed rotational between upper end cap 4, upper end cap 4 is covered with the handle base 6 of cover cap axostylus axostyle 8, handle base 6 is by running through the hinge of itself and axostylus axostyle 8 on axostylus axostyle 8, the handle base 6 ring portion lower end surface being positioned at bearing pin side is be facing directly of sliding friction with upper end cap 4 upper-end surface, the handle base 6 ring portion lower end surface being positioned at bearing pin opposite side is high outside and low outside inclined-plane, and has gap between the minimum point on this inclined-plane and upper end cap 4 upper-end surface; The side, inclined-plane of handle base 6 has a blind hole from the bottom to top, is provided with Compress Spring 9 in this blind hole, lays the steel ball 10 sliding and be limited between Compress Spring 9 bottom, blind hole inwall and upper end cap 4 upper-end surface in the blind hole of Compress Spring 9 bottom; Upper end cap 4 upper-end surface is positioned at and samely circumferentially has three Blind locating holes, angle between the Blind locating holes center and adjacent two Blind locating holes centers of centre is 60 degree of angles, the side of facing directly of handle base 6 is embedded with the alignment pin 18 that coordinate all pluggable with each Blind locating holes, and handle base 6 top corresponding with alignment pin 18 is provided with handle 11;
Have A2 hydraulic fluid port, A1 hydraulic fluid port and A3 hydraulic fluid port with uniform successively on the valve body 1 being positioned at middle Blind locating holes homonymy from top to bottom, valve body 1 opposite side relative respectively with A2 hydraulic fluid port, A1 hydraulic fluid port and A3 hydraulic fluid port is uniform successively from top to bottom has B1 hydraulic fluid port, B3 hydraulic fluid port and B2 hydraulic fluid port;
The spool 2 being positioned at sustained height with A2 hydraulic fluid port and B1 hydraulic fluid port is circumferentially evenly equipped with A in the direction of the clock successively
22hydraulic fluid port groove, A
21hydraulic fluid port groove, B
11hydraulic fluid port groove, B
12hydraulic fluid port groove, B
13hydraulic fluid port groove and A
23hydraulic fluid port groove, wherein A
22hydraulic fluid port groove and A
21hydraulic fluid port groove is connected, A
21hydraulic fluid port groove and B
13hydraulic fluid port groove is connected, B
13hydraulic fluid port groove and B
12hydraulic fluid port groove is connected;
The spool 2 being positioned at sustained height with A1 hydraulic fluid port and B3 hydraulic fluid port circumferentially has A in the direction of the clock successively
12hydraulic fluid port groove, B
31hydraulic fluid port groove, B
32hydraulic fluid port groove and A
13hydraulic fluid port groove;
The spool 2 being positioned at sustained height with A3 hydraulic fluid port and A3 hydraulic fluid port is circumferentially evenly equipped with A in the direction of the clock successively
32hydraulic fluid port groove, A
31hydraulic fluid port groove, B
21hydraulic fluid port groove, B
22hydraulic fluid port groove, B
23hydraulic fluid port groove and A
33hydraulic fluid port groove, wherein A
31hydraulic fluid port groove and B
23hydraulic fluid port groove is connected;
Described A
22hydraulic fluid port groove, A
12hydraulic fluid port groove and A
32hydraulic fluid port groove is positioned on same vertical curve, A
21hydraulic fluid port groove and A
31hydraulic fluid port groove is positioned on same vertical curve, B
11hydraulic fluid port groove, B
31hydraulic fluid port groove and B
21hydraulic fluid port groove is positioned on same vertical curve, B
12hydraulic fluid port groove, B
32hydraulic fluid port groove and B
22on the same vertical curve of hydraulic fluid port groove, B
13hydraulic fluid port groove and B
23hydraulic fluid port groove is positioned on same vertical curve, A
23hydraulic fluid port groove, A
13hydraulic fluid port groove and A
33hydraulic fluid port groove is positioned on same vertical curve;
B
11hydraulic fluid port groove, B
31hydraulic fluid port groove and B
21be interconnected between hydraulic fluid port groove, A
23hydraulic fluid port groove, A
13hydraulic fluid port groove and A
33be interconnected between hydraulic fluid port groove, B
32hydraulic fluid port groove and B
22be connected between hydraulic fluid port groove, A
12hydraulic fluid port groove and A
32hydraulic fluid port groove is connected;
Described spool 2 vertically has the via 12 being communicated with spool 2 upper and lower end face, and this via 12 is not connected with any hydraulic fluid port groove, upper end cap 4 is positioned at middle Blind locating holes center and A
22hydraulic fluid port groove center is positioned on same vertical semi-section, lower end cap 5 has the flow-off R being communicated with valve body 1 inner chamber.
During concrete enforcement, adopt three motor governing system of described underground coal mine drilling rod Hydraulic Adjustable Speed valve, comprise in-line P, outlet line T, motor 1, motor 2 16 and motor 3 17,
Described in-line P is connected to A1 hydraulic fluid port by left three-way pipe 13, the threeway of left three-way pipe 13 is connected on the filler opening of motor 1, the oil outlet of motor 1 is connected on B1 hydraulic fluid port, A2 hydraulic fluid port is connected on the filler opening of motor 2 16, the oil outlet of motor 2 16 is connected on B2 hydraulic fluid port, A3 hydraulic fluid port is connected on the filler opening of motor 3 17, the oil outlet of motor 3 17 is connected to outlet line T by right three-way pipe 14, the threeway of right three-way pipe 14 is connected on B3 hydraulic fluid port, and flow-off R is connected to hydraulic oil container 7 by overflow oil circuit.
Claims (2)
1. underground coal mine drilling rod Hydraulic Adjustable Speed valve, comprise valve body (1), in valve body (1) inner chamber along the spool (2) of its axial rotation, be installed on spool (2) top and the some seal rings (3) between bottom outer wall and valve body (1) inwall respectively, bolt is fixed on upper end cap (4) on valve body (1) upper and lower end face and lower end cap (5) respectively, it is characterized in that
The axostylus axostyle (8) of upper end cap (4) is extended through vertically in the middle part of described spool (2) upper-end surface, be positioned at the axostylus axostyle (8) at upper end cap (4) place to coordinate with sealed rotational between upper end cap (4), upper end cap (4) is covered with the handle base (6) of cover cap axostylus axostyle (8), handle base (6) is by running through the hinge of itself and axostylus axostyle (8) on axostylus axostyle (8), handle base (6) the ring portion lower end surface being positioned at bearing pin side is for being facing directly of sliding friction with upper end cap (4) upper-end surface, handle base (6) the ring portion lower end surface being positioned at bearing pin opposite side is high outside and low outside inclined-plane, and have gap between the minimum point on this inclined-plane and upper end cap (4) upper-end surface, the side, inclined-plane of handle base (6) has a blind hole from the bottom to top, be provided with Compress Spring (9) in this blind hole, the blind hole being positioned at Compress Spring (9) bottom is laid slip and is limited in steel ball (10) between Compress Spring (9) bottom, blind hole inwall and upper end cap (4) upper-end surface,
Upper end cap (4) upper-end surface is positioned at and samely circumferentially has three Blind locating holes, angle between the Blind locating holes center and adjacent two Blind locating holes centers of centre is 60 degree of angles, the side of facing directly of handle base (6) is embedded with the alignment pin (18) that coordinate all pluggable with each Blind locating holes, and handle base (6) top corresponding with alignment pin (18) is provided with handle (11);
Have A2 hydraulic fluid port, A1 hydraulic fluid port and A3 hydraulic fluid port with uniform successively on the valve body (1) being positioned at middle Blind locating holes homonymy from top to bottom, valve body (1) opposite side relative respectively with A2 hydraulic fluid port, A1 hydraulic fluid port and A3 hydraulic fluid port is uniform successively from top to bottom has B1 hydraulic fluid port, B3 hydraulic fluid port and B2 hydraulic fluid port;
The spool (2) being positioned at sustained height with A2 hydraulic fluid port and B1 hydraulic fluid port is circumferentially evenly equipped with A in the direction of the clock successively
22hydraulic fluid port groove, A
21hydraulic fluid port groove, B
11hydraulic fluid port groove, B
12hydraulic fluid port groove, B
13hydraulic fluid port groove and A
23hydraulic fluid port groove, wherein A
22hydraulic fluid port groove and A
21hydraulic fluid port groove is connected, A
21hydraulic fluid port groove and B
13hydraulic fluid port groove is connected, B
13hydraulic fluid port groove and B
12hydraulic fluid port groove is connected;
The spool (2) being positioned at sustained height with A1 hydraulic fluid port and B3 hydraulic fluid port circumferentially has A in the direction of the clock successively
12hydraulic fluid port groove, B
31hydraulic fluid port groove, B
32hydraulic fluid port groove and A
13hydraulic fluid port groove;
The spool (2) being positioned at sustained height with A3 hydraulic fluid port and A3 hydraulic fluid port is circumferentially evenly equipped with A in the direction of the clock successively
32hydraulic fluid port groove, A
31hydraulic fluid port groove, B
21hydraulic fluid port groove, B
22hydraulic fluid port groove, B
23hydraulic fluid port groove and A
33hydraulic fluid port groove, wherein A
31hydraulic fluid port groove and B
23hydraulic fluid port groove is connected;
Described A
22hydraulic fluid port groove, A
12hydraulic fluid port groove and A
32hydraulic fluid port groove is positioned on same vertical curve, A
21hydraulic fluid port groove and A
31hydraulic fluid port groove is positioned on same vertical curve, B
11hydraulic fluid port groove, B
31hydraulic fluid port groove and B
21hydraulic fluid port groove is positioned on same vertical curve, B
12hydraulic fluid port groove, B
32hydraulic fluid port groove and B
22on the same vertical curve of hydraulic fluid port groove, B
13hydraulic fluid port groove and B
23hydraulic fluid port groove is positioned on same vertical curve, A
23hydraulic fluid port groove, A
13hydraulic fluid port groove and A
33hydraulic fluid port groove is positioned on same vertical curve;
B
11hydraulic fluid port groove, B
31hydraulic fluid port groove and B
21be interconnected between hydraulic fluid port groove, A
23hydraulic fluid port groove, A
13hydraulic fluid port groove and A
33be interconnected between hydraulic fluid port groove, B
32hydraulic fluid port groove and B
22be connected between hydraulic fluid port groove, A
12hydraulic fluid port groove and A
32hydraulic fluid port groove is connected;
Described spool (2) vertically has the via (12) being communicated with spool (2) upper and lower end face, and this via (12) is not connected with any hydraulic fluid port groove, upper end cap (4) is positioned at middle Blind locating holes center and A
22hydraulic fluid port groove center is positioned on same vertical semi-section, lower end cap (5) has the flow-off (R) being communicated with valve body (1) inner chamber.
2. adopt underground coal mine drilling rod three motor governing system of Hydraulic Adjustable Speed valve described in claim 1, it is characterized in that, comprise in-line (P), outlet line (T), motor one (15), motor two (16) and motor three (17),
Described in-line (P) is connected to A1 hydraulic fluid port by left three-way pipe (13), the threeway of left three-way pipe (13) is connected on the filler opening of motor one (15), the oil outlet of motor one (15) is connected on B1 hydraulic fluid port, A2 hydraulic fluid port is connected on the filler opening of motor two (16), the oil outlet of motor two (16) is connected on B2 hydraulic fluid port, A3 hydraulic fluid port is connected on the filler opening of motor three (17), the oil outlet of motor three (17) is connected to outlet line (T) by right three-way pipe (14), the threeway of right three-way pipe (14) is connected on B3 hydraulic fluid port, flow-off (R) is connected to hydraulic oil container (7) by overflow oil circuit.
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 |
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| Publication Number | Publication Date |
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| CN105134686A true CN105134686A (en) | 2015-12-09 |
| CN105134686B 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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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107630845A (en) * | 2017-09-07 | 2018-01-26 | 浙江志高机械股份有限公司 | The rig rotation control device of changeable high and low rotating speed and moment of torsion |
| CN114704561A (en) * | 2022-04-27 | 2022-07-05 | 上海辛金路流体技术有限公司 | Drill power head synchronous clutch |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107630845A (en) * | 2017-09-07 | 2018-01-26 | 浙江志高机械股份有限公司 | The rig rotation control device of changeable high and low rotating speed and moment of torsion |
| 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 |
| CN114704561A (en) * | 2022-04-27 | 2022-07-05 | 上海辛金路流体技术有限公司 | Drill power head synchronous clutch |
| 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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|---|---|
| CN105134686B (en) | 2017-03-22 |
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