CN106365059A - Hydraulic control system and method for winch of core drilling machine - Google Patents
Hydraulic control system and method for winch of core drilling machine Download PDFInfo
- Publication number
- CN106365059A CN106365059A CN201610780381.9A CN201610780381A CN106365059A CN 106365059 A CN106365059 A CN 106365059A CN 201610780381 A CN201610780381 A CN 201610780381A CN 106365059 A CN106365059 A CN 106365059A
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- China
- Prior art keywords
- mouth
- valve
- hydraulic
- reversal valve
- elevator
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/28—Other constructional details
- B66D1/40—Control devices
- B66D1/42—Control devices non-automatic
- B66D1/44—Control devices non-automatic pneumatic of hydraulic
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a hydraulic control system and method for a winch of a core drilling machine. The system comprises a hydraulic motor, a throttle valve, a first one-way valve, a first reversing valve and a second reversing valve. The method comprises the steps of follow-up winch lowering, and hydraulic drive winch lifting and lowering, wherein in the step of follow-up winch lowering, floating control of the hydraulic motor is achieved through the first reversing valve, and the lowering speed of the winch is controlled through the throttle valve; and in the step of hydraulic drive winch lifting and lowering, forward rotation or reverse rotation of the hydraulic motor is controlled through the second reversing valve, and the winch is hydraulically driven to be lifted and lowered. According to the hydraulic control system and method for the winch of the core drilling machine, the winch is freely lowered; a hydraulic motor floating loop is in parallel connection with a motor oil inlet-outlet, the hydraulic damping is small, heating of the system is low, and the damage to the hydraulic motor is relatively small; besides, the hydraulic motor floating loop is provided with the throttle valve, so that control for the lowering speed can be conveniently achieved, and the problem that a drilling tool is damaged due to the fact that the lowering speed is too high is avoided; and a winch floating loop adopts hydraulic reversing, and the winch is easy to operate.
Description
Technical field
The present invention relates to the technical field of core drilling, more particularly, to a kind of rock-core borer winding hydraulic control system and side
Method.
Background technology
The feature of wire line core drilling is when rock core fills inner tube, does not carry brill and uses rope salvaging device interior in drilling rod
Pipe is fished for obtain rock core.When fishing for rock core, need to put into fisher and core in drilling rod, by gravity or waterpower by fisher
Quick decentralization, then hoisting salvaging rock core.Elevator sets as the core institution of decentralization and lifting fisher, its control system
Meter quality will directly affect efficiency of coring.Because elevator rotation lowering velocity is slower, wire line coring technological requirement elevator has certainly
By lowering function, elevator can lean on gravity or waterpower quickly to transfer fisher to bottom hole.
At present, the supporting elevator of rock-core borer mostly is traditional lifting elevator and supporting hydraulic control system, as shown in figure 1, its
Generally existing cannot realize free releasing, exist lowering velocity compared with slow, Hydraulic System Fever is larger, the low shortcoming of efficiency.For carrying
High fisher lowering velocity, part elevator design producer is partially improved to winch control system, and a kind of way is in elevator
Increase clutch between drive motor and elevator, when transferring fisher, elevator is separated with motor, elevator is in servo-actuated shape
State, thus realizing quick lowering function, for controlling fisher lowering velocity, this elevator is typically provided with hand-operated brake system.This
Although scheme solves fisher and quickly transfers problem, there is complex structure, high cost, lowering velocity stationarity is poor, easily
The shortcomings of damage drilling tool.Second way is to improve elevator fluid power system, as shown in Fig. 2 elevator liquid drive system is commutated
Valve middle position is changed to y morpheme, increases motor float function, thus realize elevator automatically transferring.This scheme has structure simply, cost
Low advantage, but still suffer from the uncontrollable shortcoming of speed, and due to during free releasing, motor is changed into pump, and split type
Between rock-core borer reversal valve and motor, connection rubber tube is longer, and liquid resistance is larger, and system heat generation is serious, and easily damages motor.
For this reason, the designer of the present invention is in view of drawbacks described above, by concentrating on studies and designing, comprehensively it is engaged in for many years for a long time
The experience of related industry and achievement, research design goes out a kind of rock-core borer winding hydraulic control system and method, above-mentioned to overcome
Defect.
Content of the invention
It is an object of the invention to provide a kind of rock-core borer winding hydraulic control system and method, it can solve existing skill
There is in art elevator decentralization stationarity is poor, easy damaged drilling tool, complex structure, hinder motor.
For solving the above problems, the invention discloses a kind of rock-core borer winding hydraulic control system, including hydraulic motor,
Choke valve, the first check valve, the first reversal valve and the second reversal valve it is characterised in that:
Described second reversal valve is three position four-way directional control valve, and the first reversal valve is two-bit triplet pilot operated directional control valve, described the
P in two input ports of two reversal valves connects to hydraulic system high pressure fuel source, and t is connected with hydraulic oil container, described first commutation
The a mouth of valve is connected with the b mouth of hydraulic motor, and the c mouth of the first reversal valve is connected with the b mouth of the second reversal valve, described first commutation
The control port of valve is connected with a mouth of hydraulic motor；
The b mouth of described choke valve is connected with the b mouth of the first reversal valve, a mouth of described choke valve 4 and the b of the first check valve
Mouth connects, and a mouth of described first check valve is connected with a mouth of hydraulic motor, and thus, described first check valve controls choke valve extremely
The a mouth oil circuit of hydraulic motor leads to.
Wherein: described second reversal valve is y type middle position.
Wherein: also comprise a relief valve, described relief valve is parallel between a mouth of hydraulic motor and b mouth, described relief valve
A mouth be connected with the b mouth of hydraulic motor, the b mouth of relief valve is connected with a mouth of hydraulic motor.
Wherein: also comprise one second check valve, described second check valve is parallel between a mouth of the first reversal valve and c mouth,
Described first check valve controls the c mouth of the first reversal valve to lead to a mouth oil circuit.
Also disclose a kind of rock-core borer elevator hydraulic control method, by rock-core borer elevator hydraulic pressure control as above
System processed is realized it is characterised in that comprising the steps of:
Elevator servo-actuated decentralization step, realizes hydraulic motor floating control by the first reversal valve, by under throttle valve control elevator
Put speed；
Elevator surges and lifts decentralization step, controls hydraulic motor forward or reverse, hydraulic-driven elevator by the second reversal valve
Lifting or decentralization.
Wherein: in described elevator servo-actuated decentralization step: when the second reversal valve works in middle position, the first reversal valve control port
For low pressure, the first reversal valve works in right position, forms closed-loop path between hydraulic motor a mouth and b mouth, and hydraulic motor is in floating
State.
Wherein: choke valve series connection and hydraulic motor floating loop, adjust throttle valve opening scalable elevator servo-actuated decentralization speed
Degree.
Wherein: described elevator surges in lifting decentralization step: the second commutation valve events and control a mouth and b mouth high-low pressure shape
State, if a mouth is high pressure hydraulic fluid port, b mouth is low pressure hydraulic fluid port, and hydraulic oil flows into the control port of the first reversal valve, the first reversal valve work
Make in left position, hydraulic motor inverts, drive elevator decentralization, if a mouth is low pressure, b mouth is high pressure, the control port of the first reversal valve
For low pressure, the first reversal valve works in right position, and hydraulic motor inverts, and drives hoisting.
By said structure, the rock-core borer winding hydraulic control system of the present invention and method have the effect that
1st, realize elevator free releasing, elevator structure is simple, low cost.
2nd, hydraulic motor floating loop is parallel to motor oil inlet and outlet, and hydraulic damping is little, and system heat generation is little, to hydraulic motor
Damage less.
3rd, motor floating loop is provided with choke valve, can conveniently realize lowering velocity control, it is to avoid the too fast damage of lowering velocity
Hinder drilling tool.Winch floats loop adopts liquid controlled reversing, and elevator is simple to operate.
The detailed content of the present invention can be obtained by explanation described later and institute's accompanying drawing.
Brief description
Accompanying drawing described herein as is used for providing a further understanding of the present invention, constitutes the part of the application, the present invention
Schematic description and description is used for explaining the present invention, does not constitute inappropriate limitation of the present invention.
Fig. 1 is existing lifting winding hydraulic control system schematic diagram.
Fig. 2 is existing winding hydraulic control system schematic diagram.
Fig. 3 is hydraulic system principle figure in embodiments of the invention.
Fig. 4 is the schematic diagram that in embodiments of the invention, liquid drives decentralization.
Fig. 5 is the schematic diagram that in embodiments of the invention, liquid drives lifting.
Specific embodiment
Referring to Fig. 3 to Fig. 5 it is shown that the rock-core borer winding hydraulic control system of the present invention and method.
Referring to Fig. 3, rock-core borer winding hydraulic control system of the present invention includes hydraulic motor 1, relief valve 2, first
Check valve 3, choke valve 4, the first reversal valve 5, the second check valve 6 and the second reversal valve 7, described second reversal valve 7 is three four
Logical reversal valve, described second reversal valve 7 is preferably y type middle position, and the first reversal valve 5 is two-bit triplet pilot operated directional control valve, and described the
P in two input ports of two reversal valves 7 connects to hydraulic system high pressure fuel source, and t is connected with hydraulic oil container, described first commutation
The a mouth of valve 5 is connected with the b mouth of hydraulic motor 1, and the c mouth of the first reversal valve 5 is connected with the b mouth of the second reversal valve 7, and described first
The control port of reversal valve 5 is connected with a mouth of hydraulic motor 1, described second check valve 6 be parallel to a mouth of the first reversal valve 5 with
Between c mouth, described first check valve 6 controls the c mouth of the first reversal valve 5 to lead to a mouth oil circuit, and a mouth is obstructed to c mouth direction oil circuit.
The b mouth of described choke valve 4 is connected with the b mouth of the first reversal valve 5, a mouth of described choke valve 4 and the first check valve 3
B mouth connect, a mouth of described check valve 3 is connected with a mouth of hydraulic motor 1, thus, described first check valve 3 control choke valve
The a mouth oil circuit of 4 to hydraulic motor 1 leads to, conversely, oil circuit is obstructed.
Described relief valve 2 is parallel between a mouth of hydraulic motor 1 and b mouth, specifically, a mouth of described relief valve 2 with
The b mouth of hydraulic motor 1 connects, and the b mouth of relief valve 2 is connected with a mouth of hydraulic motor 1.
Referring to Fig. 3, it is elevator free releasing step, the second reversal valve 7 works in middle position, now a of the second reversal valve 7
Mouth, b mouth are low pressure, and the control port d of the first reversal valve 5 is low pressure, and the first reversal valve 5 works in right position, now hydraulic motor 1
Be in quick condition, elevator can drilling tool deadweight or hydraulic action under free releasing, for avoiding lowering velocity too fast, adjust section
Stream valve 4 aperture can achieve that lowering velocity controls, and because reversal valve 7 is y type middle position, can supplement hydraulic system leakage, it is to avoid be emptied.
When not needing elevator servo-actuated under Part load, choke valve 4 can be closed.
Referring to Fig. 4, it is elevator hydraulic control decentralization, the second reversal valve 7 works in left position, and the second reversal valve 7a mouth is height
Pressure, b mouth is low pressure, and the control port d of the first reversal valve 5 is high pressure, promotes valve element to work in left position, elevator is under hydraulic-driven
Decentralization.Elevator lowering velocity is determined with hydraulic motor 1 and oil sources flow.
Referring to Fig. 5, Fig. 5 is lifted for elevator hydraulic control, and the second reversal valve 7 works in right position, and the second reversal valve 7a mouth is
Low pressure, b mouth is high pressure, and the control port d of the first reversal valve 5 is low pressure, and valve element works in right position, and it is unidirectional that hydraulic oil passes through second
Valve 6 flows into the b mouth drive motor revolution of hydraulic motor 1, realizes hoisting.A, b mouth of hydraulic motor 1 is parallel with relief valve 2,
When hoisting power exceedes limit value, relief valve 2 is opened, hydraulic motor 1 pressure release, can reduce the inertia in lifting process simultaneously
Impact.
In actual applications, only need reversing valve operated can conveniently realize elevator free releasing, elevator surges decentralization, elevator liquid
Conversion between dynamic enhanced feature, simple to operate.Achievable free releasing, improves efficiency of coring.Opened by adjusting choke valve
Mouthful size, realizes speed controlling, it is to avoid lowering velocity is too fast and damage drilling tool.Hydraulic motor floating loop is parallel to motor turnover
Hydraulic fluid port, it is to avoid the problems such as long liquid causing of pipeline hinders big, system heat generation is serious, improves motor service life.Lifting safety
The setting of valve can improve the safety during drilling tool lifting.
Described reversal valve 5 can achieve hydraulic motor 1 servo antrol.
Rock-core borer elevator hydraulic control method using said system, comprising:
Elevator servo-actuated decentralization step, realizes hydraulic motor 1 floating control by the first reversal valve 5, controls elevator by choke valve 4
Lowering velocity.Elevator surges and lifts decentralization step, controls hydraulic motor 1 forward or reverse by the second reversal valve 7, hydraulic-driven is rolled up
Raise lifting or transfer.
In described elevator servo-actuated decentralization step: when the second reversal valve 7 works in middle position, the first reversal valve 5 control port is
Low pressure, the first reversal valve 5 works in right position, forms closed-loop path, hydraulic motor 1 is in floating between hydraulic motor 1a mouth and b mouth
Dynamic state.Choke valve 4 series connection and hydraulic motor 1 floating loop, adjust choke valve 4 aperture, the servo-actuated lowering velocity of scalable elevator.
Described elevator surges in lifting decentralization step: the second reversal valve 7 action, controls a mouth and b mouth height pressure condition.A mouth
For high pressure hydraulic fluid port, b mouth is low pressure hydraulic fluid port, and hydraulic oil flows into the control port of the first reversal valve 5, and the first reversal valve 5 works in a left side
Position, hydraulic motor 1 inverts, and drives elevator decentralization.A mouth is low pressure, and b mouth is high pressure, and the control port of the first reversal valve 5 is low
Pressure, the first reversal valve 5 works in right position, and hydraulic motor inverts, and drives hoisting.
As can be seen here, it is an advantage of the current invention that:
1st, realize elevator free releasing, elevator structure is simple, low cost.
2nd, hydraulic motor floating loop is parallel to motor oil inlet and outlet, and hydraulic damping is little, and system heat generation is little, to hydraulic motor
Damage less.
3rd, motor floating loop is provided with choke valve, can conveniently realize lowering velocity control, it is to avoid the too fast damage of lowering velocity
Hinder drilling tool.Winch floats loop adopts liquid controlled reversing, and elevator is simple to operate.
It is readily apparent that above description and record are only to illustrate rather than in order to limit in disclosure of the invention
Hold, apply or use.Although having described and be described in the drawings embodiment in an embodiment, the present invention does not limit
By accompanying drawing example and be described as in an embodiment it is now recognized that the particular case to implement the teachings of the present invention for the optimal mode
Son, the scope of the present invention will include falling into any embodiment of description and appended claims above.
Claims (8)
1. a kind of rock-core borer winding hydraulic control system, including hydraulic motor, choke valve, the first check valve, the first reversal valve
With the second reversal valve it is characterised in that:
Described second reversal valve is three position four-way directional control valve, and the first reversal valve is two-bit triplet pilot operated directional control valve, and described second changes
Connect to hydraulic system high pressure fuel source to the p in two input ports of valve, t is connected with hydraulic oil container, a of described first reversal valve
Mouth is connected with the b mouth of hydraulic motor, and the c mouth of the first reversal valve is connected with the b mouth of the second reversal valve, the control of described first reversal valve
Liquefaction mouth is connected with a mouth of hydraulic motor；
The b mouth of described choke valve is connected with the b mouth of the first reversal valve, and the b mouth of a mouth of described choke valve 4 and the first check valve is even
Connect, a mouth of described first check valve is connected with a mouth of hydraulic motor, thus, described first check valve controls choke valve to hydraulic pressure
The a mouth oil circuit of motor leads to.
2. rock-core borer winding hydraulic control system as claimed in claim 1 it is characterised in that: described second reversal valve be y
Type middle position.
3. rock-core borer winding hydraulic control system as claimed in claim 1 it is characterised in that: also comprise a relief valve, institute
State relief valve to be parallel between a mouth of hydraulic motor and b mouth, a mouth of described relief valve is connected with the b mouth of hydraulic motor, safety
The b mouth of valve is connected with a mouth of hydraulic motor.
4. rock-core borer winding hydraulic control system as claimed in claim 1 it is characterised in that: also comprise one second unidirectional
Valve, described second check valve is parallel between a mouth of the first reversal valve and c mouth, and described first check valve controls the first reversal valve
C mouth to a mouth oil circuit lead to.
5. a kind of rock-core borer elevator hydraulic control method, by described rock-core borer elevator arbitrary in such as claim 1-4
Hydraulic control system is realized it is characterised in that comprising the steps of:
Elevator servo-actuated decentralization step, realizes hydraulic motor floating control by the first reversal valve, transfers speed by throttle valve control elevator
Degree；
Elevator surges and lifts decentralization step, controls hydraulic motor forward or reverse, hydraulic-driven hoisting by the second reversal valve
Or decentralization.
6. rock-core borer elevator hydraulic control method as claimed in claim 5 it is characterised in that: stride under described elevator is servo-actuated
In rapid: when the second reversal valve works in middle position, the first reversal valve control port is low pressure, and the first reversal valve works in right position, liquid
Form closed-loop path, hydraulic motor is in quick condition between pressure motor a mouth and b mouth.
7. rock-core borer elevator hydraulic control method as claimed in claim it is characterised in that: choke valve series connection with hydraulic pressure horse
Reach floating loop, adjust the servo-actuated lowering velocity of throttle valve opening scalable elevator.
8. rock-core borer elevator hydraulic control method as claimed in claim 5 it is characterised in that: described elevator surge lifting under
In strideing suddenly: the second commutation valve events and control a mouth and b mouth height pressure condition, if a mouth is high pressure hydraulic fluid port, b mouth is low pressure oil
Mouthful, hydraulic oil flows into the control port of the first reversal valve, and the first reversal valve works in left position, and hydraulic motor inverts, and drives elevator
Decentralization, if a mouth is low pressure, b mouth is high pressure, and the control port of the first reversal valve is low pressure, and the first reversal valve works in right position, liquid
Pressure motor inverts, and drives hoisting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610780381.9A CN106365059A (en) | 2016-08-30 | 2016-08-30 | Hydraulic control system and method for winch of core drilling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610780381.9A CN106365059A (en) | 2016-08-30 | 2016-08-30 | Hydraulic control system and method for winch of core drilling machine |
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| Publication Number | Publication Date |
|---|---|
| CN106365059A true CN106365059A (en) | 2017-02-01 |
Family
ID=57900554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610780381.9A Pending CN106365059A (en) | 2016-08-30 | 2016-08-30 | Hydraulic control system and method for winch of core drilling machine |
Country Status (1)
| Country | Link |
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| CN (1) | CN106365059A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108397428A (en) * | 2017-02-08 | 2018-08-14 | 罗伯特·博世有限公司 | Pre-tighten the hydraulic system of module and secondary adjustment |
| CN108423589A (en) * | 2018-04-04 | 2018-08-21 | 三重工股份有限公司 | Winch floats system and rotary drilling rig for rotary drilling rig |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0754568A (en) * | 1993-08-12 | 1995-02-28 | Kato Works Co Ltd | Control device for hydraulic motor to drive kelly-bar |
| JP2003322103A (en) * | 2002-05-09 | 2003-11-14 | Sumitomo Heavy Industries Construction Crane Co Ltd | Elevating control device |
| CN102020213A (en) * | 2010-10-27 | 2011-04-20 | 湖南山河智能机械股份有限公司 | Method and device for controlling over-relaxation of wire rope in floating of winch |
| CN102410010A (en) * | 2011-11-22 | 2012-04-11 | 北京市三一重机有限公司 | Rotary drilling rig and main winding floating system thereof |
| CN202612232U (en) * | 2012-06-05 | 2012-12-19 | 郑州正弘桩工机械制造有限公司 | Hydraulic motor driving device and long spiral drilling machine main winch adopting same |
-
2016
- 2016-08-30 CN CN201610780381.9A patent/CN106365059A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0754568A (en) * | 1993-08-12 | 1995-02-28 | Kato Works Co Ltd | Control device for hydraulic motor to drive kelly-bar |
| JP2003322103A (en) * | 2002-05-09 | 2003-11-14 | Sumitomo Heavy Industries Construction Crane Co Ltd | Elevating control device |
| CN102020213A (en) * | 2010-10-27 | 2011-04-20 | 湖南山河智能机械股份有限公司 | Method and device for controlling over-relaxation of wire rope in floating of winch |
| CN102410010A (en) * | 2011-11-22 | 2012-04-11 | 北京市三一重机有限公司 | Rotary drilling rig and main winding floating system thereof |
| CN202612232U (en) * | 2012-06-05 | 2012-12-19 | 郑州正弘桩工机械制造有限公司 | Hydraulic motor driving device and long spiral drilling machine main winch adopting same |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108397428A (en) * | 2017-02-08 | 2018-08-14 | 罗伯特·博世有限公司 | Pre-tighten the hydraulic system of module and secondary adjustment |
| CN108423589A (en) * | 2018-04-04 | 2018-08-21 | 三重工股份有限公司 | Winch floats system and rotary drilling rig for rotary drilling rig |
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Application publication date: 20170201 |
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