CN104555741B - A kind of rotary drilling rig master winch control system and rotary drilling rig - Google Patents
A kind of rotary drilling rig master winch control system and rotary drilling rig Download PDFInfo
- Publication number
- CN104555741B CN104555741B CN201410852158.1A CN201410852158A CN104555741B CN 104555741 B CN104555741 B CN 104555741B CN 201410852158 A CN201410852158 A CN 201410852158A CN 104555741 B CN104555741 B CN 104555741B
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- China
- Prior art keywords
- variable displacement
- hydraulic fluid
- flywheel
- drive motor
- drilling rod
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/18—Control systems or devices
- B66C13/20—Control systems or devices for non-electric drives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/12—Arrangements of means for transmitting pneumatic, hydraulic, or electric power to movable parts of devices
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B3/00—Rotary drilling
- E21B3/02—Surface drives for rotary drilling
Abstract
The present invention relates to the technical field of engineering truck, disclose a kind of rotary drilling rig master winch control system and rotary drilling rig, this rotary drilling rig master winch control system includes: master winch drives hydraulic circuit, potential energy recovery system, speed probe and control device；Wherein, master winch drive hydraulic system principle drives drilling rod to rotate by drive motor, potential energy recovery system comprises a variable displacement motor and a flywheel, control device makes flywheel energy storage when being realized below drilling rod by the communication direction between control drive motor and variable horse, when drilling rod rises, flywheel is done manual work.In technique scheme, by using flywheel, the potential energy that drilling rod declines is stored, and when drilling rod rises, the potential energy of flywheel storage is discharged, thus reduces the energy consumption of rotary drilling rig, and saved energy.
Description
Technical field
The present invention relates to the technical field of engineering truck, referring more particularly to a kind of rotary drilling rig master winch control is
System and rotary drilling rig.
Background technology
In recent years, with the energy trend that day by day shortage price constantly rises, various countries release energy-saving consumption-reducing one after another
Plan, engineering machinery is stood in the breach as big power consumer.For the Spiral digging machine in engineering machinery, it is using
When, need to put down drilling rod to be operated, after completing work, need to elevate drilling rod, due to
The weight of drilling rod own is relatively big, therefore, during entirely putting down and promoting, needs to consume the bigger energy
It is controlled.
Content of the invention
The present invention provides a kind of rotary drilling rig master winch control system, in order to solve to reduce the energy of rotary drilling rig
Consumption, and then save the energy.
The invention provides a kind of rotary drilling rig master winch control system, this rotary drilling rig master winch control system
Including: master winch drives hydraulic circuit, potential energy recovery system and control device；Wherein,
Described master winch drives hydraulic circuit to include: for the driving horse driving described master winch to hoist or transferring
Reach；
Described potential energy recovery system includes: the flywheel that variable displacement motor and the rotating shaft with described variable displacement motor are connected；
Wherein, between described variable displacement motor and described drive motor by the hydraulic circuit with the second reversal valve even
Logical, when drilling rod is transferred, described second control valve is in the first working position, and described drive motor drives variable
Revolution；When extreme lower position transferred to by described drilling rod, described second reversal valve is in the second working position,
Disconnect between described drive motor and described variable displacement motor；When described drilling rod rises, described reversal valve
Being in the 3rd working position, described variable displacement motor drives described drive motor to rotate under the drive of described flywheel,
Drilling rod is driven to rise；
Described control device, when described drilling rod is transferred, controls described second reversal valve and is in the first working position；
When described drilling rod reaches extreme lower position, control described second reversal valve and be in the second working position；At described brill
When bar rises, control described second reversal valve and be in the 3rd working position.
In technique scheme, by using the setting of hydraulic circuit and reversal valve, by flywheel energy storage device
Couple together with the hydraulic control system of Spiral digging machine, and use flywheel to store the potential energy that drilling rod declines,
And when drilling rod rises, the potential energy of flywheel storage is discharged, thus reduces the energy consumption of rotary drilling rig,
And saved energy.
Preferably, also include,
Speed probe, for detecting the rotating speed of described flywheel；
The high-pressure oil passage optionally being connected with two hydraulic fluid ports of described drive motor by the first reversal valve
And low pressure oil way；
When described drilling rod rises, described control device is additionally operable to turn less than setting at the Speed of Reaction Wheels receiving
During speed, control described second reversal valve and be in the first working position, and control described first reversal valve by described height
Force feed road, low pressure oil way connect with described drive motor and make described drive motor drive described drilling rod to rise.
Preferably, described control device includes rotating speed viewer, PID controller and disturbance compensation device；Its
In,
Described rotating speed viewer, is used for the rotating speed according to the described flywheel detecting and described variable displacement motor and institute
State the equal relation of the flow of drive motor and be calculated the actual speed of described drive motor；
Described PID controller, for the driving of the actual speed according to the described drive motor obtaining and setting
The described disturbance compensation device of difference control of the rotating speed of target of motor adjusts the discharge capacity of described variable displacement motor.
Preferably, described potential energy recovery system also includes:
Detect two pressure sensors of the oil pressure of two hydraulic fluid ports of described variable displacement motor respectively；
Described disturbance compensation device, be additionally operable to according to said two pressure sensor detect pressure difference and
The rotating speed of described drive motor is connected rotary inertia with the rate of change of time with described variable displacement motor and flywheel
The relation that product is equal to the product with the discharge capacity of variable displacement motor for the pressure differential of two hydraulic fluid ports of variable displacement motor calculates
Adjust the discharge capacity of described variable displacement motor.
Preferably, two hydraulic fluid ports of described variable displacement motor are connected with fuel tank by one-way conduction valve respectively.Improve
The stability of whole device.
Preferably, the hydraulic circuit between described variable displacement motor and described second reversal valve is additionally provided with overflow
Oil circuit.Improve the stability of whole device.
Preferably, described first reversal valve is O type three position four-way electromagnetic valve, and described O type 3-position 4-way
First hydraulic fluid port of magnetic valve and the second hydraulic fluid port connect with two hydraulic fluid ports of described drive motor respectively, the 3rd hydraulic fluid port
And the 4th hydraulic fluid port connect with described high-pressure oil passage and low pressure oil way respectively；
Described second reversal valve is that M type 3-position 4-way electromagnetism changes valve, described M type three position four-way electromagnetic valve
First hydraulic fluid port and the second hydraulic fluid port connect with two hydraulic fluid ports of described variable displacement motor respectively, the 3rd hydraulic fluid port and the 4th oil
Mouth connects with two hydraulic fluid ports of described drive motor respectively, and at described M type three position four-way electromagnetic valve
When being positioned at middle position, described first hydraulic fluid port and the second hydraulic fluid port connect in the inside of described M type three-position four-way valve.
Preferably, the rotating shaft of described variable displacement motor is connected with described flywheel by clutch.Reduce flywheel
Energy consumption.
Preferably, described control device is connected with described clutch engagement signal, and disconnects in described second control valve
During the connection of described variable displacement motor and described drive motor, control described clutch disconnect described flywheel with described
Connection between rotating shaft.Reduce the energy consumption of flywheel.
Present invention also offers a kind of rotary drilling rig, this rotary drilling rig includes the churning driven described in any of the above-described kind
Owner's winch control system.In technique scheme, by the potential energy storage using flywheel to decline drilling rod
Get up, and when drilling rod rises, the potential energy of flywheel storage is discharged, thus reduces rotary drilling rig
Energy consumption, and saved energy.
Brief description
The system diagram of the rotary drilling rig master winch control system that Fig. 1 provides for the embodiment of the present invention；
The control flow chart of the rotary drilling rig master winch control system that Fig. 2 provides for the embodiment of the present invention；
Fig. 3 is that drilling rod and drilling tool potential energy are with the mutual transition diagram of flywheel energy energy；
The system diagram of the another kind of rotary drilling rig master winch control system that Fig. 4 provides for the embodiment of the present invention；
The control flow of the another kind of rotary drilling rig master winch control system that Fig. 5 provides for the embodiment of the present invention
Figure.
Detailed description of the invention
It is described in detail below in conjunction with the specific embodiment to the present invention for the accompanying drawing.It should be appreciated that herein
Described detailed description of the invention is merely to illustrate and explains the present invention, is not limited to the present invention.
As it is shown in figure 1, Fig. 1 shows the rotary drilling rig master winch control system that the embodiment of the present invention provides
System diagram.
Embodiments provide a kind of rotary drilling rig master winch control system, this rotary drilling rig master winch control
System processed includes: master winch drives hydraulic circuit, potential energy recovery system and control device 10；Wherein,
Master winch drives hydraulic circuit to include: for the drive motor 2 driving described master winch to hoist or transferring；
Potential energy recovery system includes: the flywheel 9 that variable displacement motor 7 and the rotating shaft with variable displacement motor 7 are connected；Its
In, by connecting with the hydraulic circuit of the second reversal valve 3 between variable displacement motor 7 with drive motor 2,
When drilling rod is transferred, the second control valve is in the first working position, and drive motor 2 drives variable displacement motor 7 to rotate；
When extreme lower position transferred to by drilling rod, the second reversal valve 3 is in the second working position, drive motor 2 and variable
Disconnect between motor 7, and the oil circuit that variable displacement motor 7 connects forms loop by the second reversal valve 3；
When drilling rod rises, reversal valve is in the 3rd working position, and variable displacement motor 7 drives under the drive of flywheel 9
Dynamic motor 2 rotates, and drives drilling rod to rise；
Control device 10, when drilling rod is transferred, controls the second reversal valve 3 and is in the first working position；At drilling rod
When reaching extreme lower position, control the second reversal valve 3 and be in the second working position；Rise and control device at drilling rod
When the rotating speed of the flywheel 9 of speed probe 8 detection that 10 receive is more than setting speed, control the second commutation
Valve 3 is in the 3rd working position.
In the above-described embodiments, by using flywheel 9, the potential energy that drilling rod declines is stored, and at drilling rod
During rising, the potential energy that flywheel 9 stores is discharged, thus reduce the energy consumption of rotary drilling rig, and save
Energy, concrete, when drilling rod is transferred, control device 10 controls the second reversal valve 3 by drive motor 2
Coupling together with variable displacement motor 7, drilling rod, when transferring, drives drive motor 2 to rotate, and now, drives horse
Reaching 2 to use as pump, drive motor 2 drives variable displacement motor 7 to rotate, variable displacement motor 7 flywheel driven 9
Rotating, when minimum altitude transferred to by drilling rod, control device 10 cuts off drive motor 2 and variable displacement motor 7
Between oil circuit, now, flywheel 9 is rotated further under the effect of self inertia and drives variable displacement motor 7 turns
Dynamic, thus energy storage when drilling rod is transferred.When drilling rod rises, control device 10 controls the
Hydraulic circuit between variable displacement motor 7 with drive motor 2 is connected by two reversal valves 3, in the drive of flywheel 9
Lower liquid variable displacement motor 7 drives drive motor 2 to rotate as pump so that drilling rod is elevated.
Additionally, in order to avoid drilling rod rise when, after flywheel energy runs out of, drilling rod also fails to return to initial bit
Put, it is also preferred that the left this system also includes:
Speed probe 8, speed probe 8 is for detecting the rotating speed of flywheel 9；
By the first reversal valve 1 and the high-pressure oil passage that two hydraulic fluid ports of drive motor 2 optionally connect and
Low pressure oil way；
When described drilling rod rises, control device 10 is additionally operable at flywheel 9 rotating speed receiving less than setting
During rotating speed, control the second reversal valve 3 and be in the first working position, and control the first reversal valve 1 by high-pressure oil passage,
Low pressure oil way connects with drive motor 2 and makes drive motor 2 drive drilling rod to rise.
Be used for controlling the conversion of whole hydraulic circuit by control device 10, thus realize variable displacement motor 7 and
Drive motor 2 uses respectively as pump or motor, to realize to the energy storage of flywheel 9 and by flywheel 9
Energy storage discharges does manual work.
Additionally, in order to avoid the oil circuit of variable displacement motor 7 connection is when change, in order to avoid overvoltage occurs in oil circuit
Appearance etc. situation.Two hydraulic fluid ports at variable displacement motor 7 are connected with fuel tank by one-way conduction valve respectively, and
It is additionally provided with oil overflow on hydraulic circuit between one of them hydraulic fluid port of variable displacement motor 7 and the second reversal valve 3
Road.In the lump with reference to Fig. 1, in figure 1 it can be seen that the flow direction of check valve 6 is fuel tank flows to hydraulic oil
Road, so that the oil that hydraulic circuit supplements in can obtaining fuel tank, thus the oil pressure in avoiding hydraulic circuit
Change have influence on the rotation of variable displacement motor 7, additionally, when the oil pressure of hydraulic circuit is excessive, can pass through
Overflow oil circuit unloads, and this overflow oil circuit comprises a unloading oil circuit being provided with overflow valve 4.Thus
Oil pressure can be unloaded, it is to avoid the oil pressure in hydraulic circuit is too high.
In above-mentioned specific embodiment, energy storage and the storage energy of flywheel 9 are dependent on variable displacement motor for effect
7 and equidirectional change of the company of drive motor 2 realize, concrete, controlled by the second reversal valve 3
Communication direction between variable displacement motor 7 processed and drive motor 2, and control driving horse by the first reversal valve 1
Reaching the control of 2 and high-pressure oil passage and low pressure oil way, high-pressure oil passage therein and low pressure oil way are as at flywheel 9
There is provided follow-up power to drive motor 2 after the energy release storing, thus ensure that drilling rod can when rising
There is enough power to rise to initial position.
When specifically arranging, the first reversal valve 1 therein is O type three position four-way electromagnetic valve, and O type three
First hydraulic fluid port of position four-way solenoid valve and the second hydraulic fluid port connect with two hydraulic fluid ports of drive motor 2 respectively, and the 3rd
Hydraulic fluid port and the 4th hydraulic fluid port connect with high-pressure oil passage and low pressure oil way respectively；The left position of O type three-position four-way valve is
One hydraulic fluid port and the connection of the 3rd hydraulic fluid port, the second hydraulic fluid port and the connection of the 4th hydraulic fluid port, middle position is the first hydraulic fluid port and the 3rd oil
Mouth disconnection, the second hydraulic fluid port and the 4th hydraulic fluid port disconnect, and right position is the first hydraulic fluid port and the connection of the 4th hydraulic fluid port, the second oil
Mouth connects with the 3rd hydraulic fluid port.And high-pressure oil passage and low pressure oil way and driving horse can be changed according to the actual needs
Reach the mode of communicating of 2 so that high-pressure oil passage can drive drive motor 2 to rotate and drive drilling rod to rise.Its
In high-pressure oil passage can connect the oil circuit of pump, low pressure oil way can be the oil circuit of connection fuel tank.Variable horse
When reaching 7 pairs of drilling rods workmanships, the first reversal valve 1 is positioned at middle position, thus avoids high-pressure oil passage and low pressure oil way shadow
Ring flywheel 9 to do manual work.
Second reversal valve 3 changes valve for M type 3-position 4-way electromagnetism, the first oil of M type three position four-way electromagnetic valve
Mouthful and the second hydraulic fluid port connect with two hydraulic fluid ports of variable displacement motor 7 respectively, the 3rd hydraulic fluid port and the 4th hydraulic fluid port respectively with
Two hydraulic fluid port connections of drive motor 2, and in M type three position four-way electromagnetic valve is positioned at during position, the first oil
Mouth and the second hydraulic fluid port connect in the inside of M type three-position four-way valve.The left position of this M type three position four-way electromagnetic valve
It is the first hydraulic fluid port and the connection of the 3rd hydraulic fluid port, the second hydraulic fluid port and the connection of the 4th hydraulic fluid port；Middle position is the first hydraulic fluid port and
Two hydraulic fluid port connections, right position is the first hydraulic fluid port and the connection of the 4th hydraulic fluid port, the second hydraulic fluid port and the connection of the 3rd hydraulic fluid port.?
When specifically used, drive variable displacement motor 7 to do manual work in drive motor 2 and drive drive motor at variable displacement motor 7
During 2 workmanship, the communication direction of the second reversal valve 3 changes, i.e. when drive motor 2 drives variable displacement motor 7,
If the second reversal valve 3 is positioned at right position, then when variable displacement motor 7 drives drive motor 2, the second reversal valve 3
It is positioned at left position；When drive motor 2 drives variable displacement motor 7, if the second reversal valve 3 is positioned at left position, then exist
When variable displacement motor 7 drives drive motor 2, the second reversal valve 3 is positioned at right position.Concrete mode of communicating is permissible
Select according to different situations.Only difference is that the direction that flywheel 9 rotates changes.
Control to above-mentioned hydraulic circuit for convenience, meanwhile, in order to ensure that the energy storage at flywheel 9 runs out of
After, the motion of driving drilling rod that high-pressure oil passage can continue, this device realizes to whole by controlling device 10
The control of individual hydraulic system, meanwhile, realizes the detection to flywheel 9 drilling speed by speed probe 8.For
The understanding to whole technical scheme for the convenience, 2 is described in detail to it below in conjunction with the accompanying drawings.
In the lump with reference to Fig. 1 and Fig. 2, wherein control device 10 and be connected with pilot handle 11, and pass through guide
Handle 11 controls transferring and rising of whole drilling rod.Concrete, operator is inputted by pilot handle 11
The signal of control, control device 10 is sentenced according to the corresponding control signal in position of the pilot handle 11 setting
The information of disconnected pilot handle 11 input is specifically for stopping, declining or rising.Control device 10 therein
Including rotating speed viewer, the PID controller being connected with rotating speed viewer signal and with PID controller signal
The disturbance compensation device connecting；Wherein, rotating speed viewer is connected with speed probe 8 signal, disturbance compensation device
It is connected with variable displacement motor 7 signal；The rotating speed of the flywheel 9 according to detection for the rotating speed viewer and variable displacement motor 7
The relation equal with the flow of described drive motor 2 is calculated the actual speed of drive motor 2；PID is controlled
The difference of the rotating speed of target with the drive motor 2 of setting for the actual speed of the drive motor 2 according to acquisition for the device processed
Control disturbance compensator adjusts the discharge capacity of variable displacement motor 7.
Understanding to the control system that the present embodiment provides for convenience, as a example by the whole motion process of drilling rod
It is described in detail.
1) first, pilot handle 11 input declines the order of drilling rod.Control device 10 controls the first commutation
Valve 1 is positioned at middle position, disconnects drive motor 2 with high-pressure oil passage and low pressure oil way, and makes the second reversal valve
3 are positioned at left position (or being right position), now, drive and drive horse in the case that the gravitional force of drilling rod is done manual work
Reaching 2 rotations, drive motor 2 drives variable displacement motor 7 to move by hydraulic circuit, and variable displacement motor 7 drives and flies
Wheel 9 rotation, thus the gravitional force of drilling rod is converted into the rotation potential energy of flywheel 9, and by flywheel 9
Rotate to get off energy storage.And during whole, detect flywheel 9 by speed probe 8 and rotate
Rotating speed, and obtained the rotating speed of drive motor 2 by rotating speed viewer, concrete, in rotating speed viewer
Have the corresponding relation of the flow of flow and the drive motor 2 of the variable displacement motor 7 of setting, this relation particularly as follows:
D1n1=D2n2；Wherein, n1Actual speed for drive motor 2；n2Actual speed for variable displacement motor 7；
D1Discharge capacity for drive motor 2；D2Discharge capacity for variable displacement motor 7.By variable displacement motor 7 and driving horse
The equal relation of discharge capacity of 2 of reaching judges to locate the actual speed of drive motor 2, and PID controller is according to acquisition
The comparative result of rotating speed of drive motor 2 actual speed and setting come by disturbance compensation device control variables horse
Reach the discharge capacity of 7, to ensure the rotating speed of drive motor 2, i.e. control the decline rotating speed of drilling rod.
Additionally, the rotational speed in order to ensure drive motor 2 keeps consistent, it is to avoid drilling rod is during declining
Increasingly faster, potential energy recovery system also includes two of the oil pressure of two hydraulic fluid ports of detection variable motor 7 respectively
Pressure sensor 5；Disturbance compensation device and two pressure sensor 5 signals connect, and are additionally operable to according to described
The difference of pressure of two pressure sensor 5 detections and the change of the rotating speed of described drive motor 2 and time
Rate is connected two hydraulic fluid ports equal to variable displacement motor 7 for the product of rotary inertia with described variable displacement motor 7 and flywheel 9
The relation of product of discharge capacity of pressure differential and variable displacement motor 7 calculate the discharge capacity adjusting described variable displacement motor.Tool
Body, the corresponding relation setting as:Wherein, n2Actual speed for variable displacement motor 7；
D2Discharge capacity for variable displacement motor 7；△ P is the difference of the pressure of two pressure sensor 5 detections, such as Fig. 1
Shown in, the oil of two hydraulic fluid ports that P1 and P2 is respectively the variable displacement motor 7 of two pressure sensor 5 detections is poor；
J2It is variable displacement motor 7 and flywheel 9 connects rotary inertia,Change for rotating speed and the time t of drive motor 2
Rate.It is achieved thereby that drilling rod ensure that stable rotating speed when declining.
2) when drilling rod drops to setting position, control device 10 controls the second reversal valve 3 and is positioned at middle position,
Now, flywheel 9 and variable displacement motor 7 are a system closed, i.e. flywheel 9 drives variable displacement motor 7 to rotate.
Whole system is kept apart with drive motor 2.
3) when drilling rod begins to ramp up, the now stage for flywheel 9 workmanship.In this stage, second change
Being positioned at right position (or left position) to valve 3, drive motor 2 is started to do manual work by 7 left pumps of variable displacement motor, its
In control device 10 when controlling whole hydraulic system, first determine whether that whether the rotating speed of flywheel 9 meets and want
Ask, to ensure that the energy that flywheel 9 stores can drive drilling rod to rise.Concrete, big at the rotating speed of flywheel 9
When the rotating speed setting, control device 10 controls the second reversal valve 3 by variable displacement motor 7 and drive motor 2
Connection, so that variable displacement motor 7 drives drive motor 2 to drive drilling rod to rise, constantly consumes flywheel at drilling rod
During the energy that 9 store, the rotating speed of flywheel 9 is gradually lowered, and when rotating speed is less than the rotating speed setting, shows to fly
The energy of wheel 9 storage cannot meet drilling rod and rise required energy, and now, control device 10 is controlled
Make the second reversal valve 3 and be positioned at middle position, and control the first reversal valve 1 and be positioned at left position or right position (concrete position
Depending on actual conditions), the power being used as providing drilling rod to rise to ensure high-pressure oil passage to continue.Protect
Card drilling rod can rise to initial position smoothly.During above-mentioned control, the rotating speed at flywheel 9 meets
During requirement, control other control modes of device 10 and step 1) in the control mode phase of variable displacement motor 7
Similar, this is no longer going to repeat them.As seen from Figure 3, when drilling rod rises, the energy of flywheel 9 storage
Amount is converted into the kinetic energy that drilling rod rises, thus reduces the energy that drilling rod consumes when rising, and has saved energy.
Setting speed therein is 300rec/min.For this speed, it should according to the flywheel 9 of different-diameter
And be set.The present embodiment only provides a concrete rotating speed and limits, and other rotating speeds are equally applicable to this reality
Execute in example.
In the above-described embodiments, flywheel 9 is when storing energy, needs to overcome the frictional force of self and variable
Motor 7 is rotating required energy, therefore, causes the continuous consumption of energy.Thus reduce the present embodiment and carry
The energy-saving effect of the device of confession.
As shown in Figure 4, as a kind of preferred embodiment, it is also preferred that the left the rotating shaft of variable displacement motor 7 by from
Clutch 12 is connected with flywheel 9.This embodiment makes, after flywheel 9 stores energy, to pass through clutch
Flywheel 9 is separated by 12 with variable displacement motor 7, when flywheel 9 is done manual work, then by flywheel 9 and variable displacement motor 7
Connection, thus reduce the energy that flywheel 9 consumes when idle running.
More preferably, control device 10 to be connected with clutch 12 signal, and disconnect variable horse in the second control valve
Reach 7 with the connection of drive motor 2 when, control clutch 12 disconnects the connection between flywheel 9 and rotating shaft.
In the lump with reference to Fig. 5, Fig. 5 shows the control flow chart of the control system with clutch 12, this flow process
Scheme close with the flow chart shown in Fig. 2, when only difference is that position in the second reversal valve 3 is positioned at,
When i.e. flywheel 9 starts idle running, flywheel 9 is separated by control device 10 with variable displacement motor 7, thus reduces
The energy consumption of flywheel 9, further improves the utilization rate of energy of flywheel 9 storage, and then further
Reduce the energy consumption of whole device.
The embodiment of the present invention additionally provides a kind of rotary drilling rig, and this rotary drilling rig includes that the rotation of any of the above-described kind is dug
Rig master winch control system.
In the above-described embodiments, by using flywheel 9, the potential energy that drilling rod declines is stored, and at drilling rod
During rising, the potential energy that flywheel 9 stores is discharged, thus reduce the energy consumption of rotary drilling rig, and save
Energy, concrete, when drilling rod is transferred, control device 10 controls the second reversal valve 3 by drive motor 2
Coupling together with variable displacement motor 7, drilling rod, when transferring, drives drive motor 2 to rotate, and now, drives horse
Reaching 2 to use as pump, drive motor 2 drives variable displacement motor 7 to rotate, variable displacement motor 7 flywheel driven 9
Rotating, when minimum altitude transferred to by drilling rod, control device 10 cuts off drive motor 2 and variable displacement motor 7
Between oil circuit, now, flywheel 9 is rotated further under the effect of self inertia and drives variable displacement motor 7 turns
Dynamic, thus energy storage when drilling rod is transferred.When drilling rod rises, control device 10 controls the
Hydraulic circuit between variable displacement motor 7 with drive motor 2 is connected by two reversal valves 3, in the drive of flywheel 9
Lower liquid variable displacement motor 7 drives drive motor 2 to rotate as pump so that drilling rod is elevated.
Obviously, those skilled in the art can carry out various change and modification without deviating from this to the present invention
Bright spirit and scope.So, if the present invention these modification and modification belong to the claims in the present invention and
Within the scope of its equivalent technologies, then the present invention is also intended to comprise these changes and modification.
Claims (10)
1. a rotary drilling rig master winch control system, it is characterised in that include: master winch drives hydraulic pressure
Loop, potential energy recovery system and control device；Wherein,
Described master winch drives hydraulic circuit to include: for the driving horse driving described master winch to hoist or transferring
Reach；
Described potential energy recovery system includes: the flywheel that variable displacement motor and the rotating shaft with described variable displacement motor are connected；
Wherein, between described variable displacement motor and described drive motor by the hydraulic circuit with the second reversal valve even
Logical, when drilling rod is transferred, described second reversal valve is in the first working position, and described drive motor drives variable
Revolution；When extreme lower position transferred to by described drilling rod, described second reversal valve is in the second working position,
Disconnect between described drive motor and described variable displacement motor；When described drilling rod rises, described reversal valve
Being in the 3rd working position, described variable displacement motor drives described drive motor to rotate under the drive of described flywheel,
Drilling rod is driven to rise；
Described control device, when described drilling rod is transferred, controls described second reversal valve and is in the first working position；
When described drilling rod reaches extreme lower position, control described second reversal valve and be in the second working position；At described brill
When bar rises, control described second reversal valve and be in the 3rd working position.
2. rotary drilling rig master winch control system as claimed in claim 1, it is characterised in that also include,
Speed probe, for detecting the rotating speed of described flywheel；
The high-pressure oil passage optionally being connected with two hydraulic fluid ports of described drive motor by the first reversal valve
And low pressure oil way；
When described drilling rod rises, described control device is additionally operable to turn less than setting at the Speed of Reaction Wheels receiving
During speed, control described second reversal valve and be in the first working position, and control described first reversal valve by described height
Force feed road, low pressure oil way connect with described drive motor and make described drive motor drive described drilling rod to rise.
3. rotary drilling rig master winch control system as claimed in claim 2, it is characterised in that described control
Device processed includes rotating speed viewer, PID controller and disturbance compensation device；Wherein,
Described rotating speed viewer, is used for the rotating speed according to the described flywheel detecting and described variable displacement motor and institute
State the equal relation of the flow of drive motor and be calculated the actual speed of described drive motor；
Described PID controller, for the driving of the actual speed according to the described drive motor obtaining and setting
The described disturbance compensation device of difference control of the rotating speed of target of motor adjusts the discharge capacity of described variable displacement motor.
4. rotary drilling rig master winch control system as claimed in claim 3, it is characterised in that described gesture
Can recovery system also include:
Detect two pressure sensors of the oil pressure of two hydraulic fluid ports of described variable displacement motor respectively；
Described disturbance compensation device, be additionally operable to according to said two pressure sensor detect pressure difference, with
And it is connected rotation with the rate of change of time with described variable displacement motor and flywheel according to the rotating speed of described drive motor
The product of inertia is equal to the product of the pressure differential of two hydraulic fluid ports of described variable displacement motor and the discharge capacity of variable displacement motor
Relation adjust the discharge capacity of described variable displacement motor.
5. rotary drilling rig master winch control system as claimed in claim 1, it is characterised in that described change
Two hydraulic fluid ports of amount motor are connected with fuel tank by one-way conduction valve respectively.
6. rotary drilling rig master winch control system as claimed in claim 4, it is characterised in that described change
It is additionally provided with overflow oil circuit on hydraulic circuit between amount motor and described second reversal valve.
7. rotary drilling rig master winch control system as claimed in claim 2, it is characterised in that described the
One reversal valve is O type three position four-way electromagnetic valve, and the first hydraulic fluid port of described O type three position four-way electromagnetic valve and
Second hydraulic fluid port connects with two hydraulic fluid ports of described drive motor respectively, the 3rd hydraulic fluid port and the 4th hydraulic fluid port respectively with institute
State high-pressure oil passage and low pressure oil way connection；
Described second reversal valve is M type three position four-way electromagnetic valve, the of described M type three position four-way electromagnetic valve
One hydraulic fluid port and the second hydraulic fluid port connect with two hydraulic fluid ports of described variable displacement motor respectively, the 3rd hydraulic fluid port and the 4th hydraulic fluid port
Connect with two hydraulic fluid ports of described drive motor respectively, and in described M type three position four-way electromagnetic valve is positioned at
During position, described first hydraulic fluid port and the second hydraulic fluid port connect in the inside of described M type three position four-way electromagnetic valve.
8. the rotary drilling rig master winch control system as described in any one of claim 1～7, it is characterised in that
The rotating shaft of described variable displacement motor is connected with described flywheel by clutch.
9. rotary drilling rig master winch control system as claimed in claim 8, it is characterised in that described control
Device processed, when the connection of the described second reversal valve described variable displacement motor of disconnection and described drive motor, control
Described clutch disconnects the connection between described flywheel and described rotating shaft.
10. a rotary drilling rig, it is characterised in that include that any one described rotation of claim 1～9 such as is dug
Rig master winch control system.
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106481772A (en) * | 2015-09-02 | 2017-03-08 | 熵零股份有限公司 | Hydraulic mechanism and apply its device |
| CN106545534A (en) * | 2016-01-21 | 2017-03-29 | 徐工集团工程机械股份有限公司 | Potential energy recycle and reuse system and rotary drilling rig |
| CN105864228B (en) * | 2016-05-06 | 2017-08-25 | 广西大学 | A kind of mechanical electronic hydraulic speed control system of working truck |
| CN112593917B (en) * | 2020-12-07 | 2024-03-29 | 北京三一智造科技有限公司 | Rotary drilling rig control method and device, rotary drilling rig and readable storage medium |
| CN112593916A (en) * | 2020-12-07 | 2021-04-02 | 北京三一智造科技有限公司 | Drilling regulation and control method and device and rotary drilling equipment |
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