CN110104576A - Rotary drilling rig master winch control system and rotary drilling rig - Google Patents
Rotary drilling rig master winch control system and rotary drilling rig Download PDFInfo
- Publication number
- CN110104576A CN110104576A CN201910480343.5A CN201910480343A CN110104576A CN 110104576 A CN110104576 A CN 110104576A CN 201910480343 A CN201910480343 A CN 201910480343A CN 110104576 A CN110104576 A CN 110104576A
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- China
- Prior art keywords
- valve
- hydraulic fluid
- fluid port
- working connection
- rotary drilling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 59
- 239000012530 fluid Substances 0.000 claims abstract description 91
- 239000003921 oil Substances 0.000 claims description 45
- 239000010720 hydraulic oil Substances 0.000 claims description 13
- 229910000831 Steel Inorganic materials 0.000 abstract description 11
- 239000010959 steel Substances 0.000 abstract description 11
- 238000005299 abrasion Methods 0.000 abstract description 5
- 239000000446 fuel Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000002689 soil Substances 0.000 description 6
- 238000010276 construction Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
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- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
- B66D5/02—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes
- B66D5/24—Operating devices
- B66D5/26—Operating devices pneumatic or 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
-
- 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
- F15B13/025—Pressure reducing valves
-
- 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
- F15B13/027—Check valves
-
- 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
- F15B13/029—Counterbalance valves
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Earth Drilling (AREA)
Abstract
The present invention discloses a kind of rotary drilling rig master winch control system, including the first hydraulic fluid port, the second hydraulic fluid port, the first working connection, the second working connection, switch valve, counterbalance valve, third hydraulic fluid port and the 4th hydraulic fluid port, first working connection is connected between the first hydraulic fluid port and third hydraulic fluid port, second working connection is connected between the second hydraulic fluid port and the 4th hydraulic fluid port, switch valve and counterbalance valve series connection, and one end of switch valve is connected to the first working connection, one end of counterbalance valve is connected to the second working connection, and counterbalance valve is equipped with pre-determined back-pressure value.Invention additionally discloses a kind of rotary drilling rigs.Main winch motor load is sky when drilling rod falls on bottom surface under quick condition in rotary drilling rig master winch control system of the invention and rotary drilling rig, since back pressure is arranged by counterbalance valve, counterbalance valve is closed, it closes and floats, and back pressure suppresses wirerope, it avoids steel wire rope looseness and disorder cable, and then avoids steel rope abrasion, substantially prolong the service life of wirerope.
Description
Technical field
The present invention relates to foundation construction technical fields, more particularly to a kind of rotary drilling rig master winch control system and rotary digging
Drilling machine.
Background technique
Rotary drilling rig is a kind of construction machinery of pore-forming operation in suitable building foundation engineering, is primarily adapted for sand, viscosity
The construction of the soil layers such as soil, slity soil, is used widely in a variety of foundation basic constructions such as bored concrete pile, diaphragm wall, strengthening of foundation,
It is general to use the flexible chassis of hydraulic crawler, the foldable brill mast of automatic lifting, telescopic drill rod, have and vertically detect tune automatically
Whole, hole depth digital-scroll technique etc., complete machine manipulation generally use Hydraulic guide control, load sensing, have and operate the spies such as light, comfortable
Point.
Rotary rig master winch floating put rope or float drilling when, due to creeping into after contacting to earth or for a long time, inertia and steel
The weight of cord can make master winch steel wire rope relaxation, will appear disorder cable in such case wirerope for a long time, and lead to steel wire
Rope abrasion, reduces the service life of wirerope.
The narration of front is to provide general background information, might not constitute the prior art.
Summary of the invention
The purpose of the present invention is to provide a kind of rotary drilling rig master winch control system and rotary drilling rigs, can avoid churning driven
Steel rope abrasion problem caused by master winch steel wire rope relaxation when machine is in quick condition.
The present invention provides a kind of rotary drilling rig master winch control system, including the first hydraulic fluid port, the second hydraulic fluid port, the first main oil
Road, the second working connection, switch valve, counterbalance valve, third hydraulic fluid port and the 4th hydraulic fluid port, first working connection are connected to first oil
Between mouth and the third hydraulic fluid port, second working connection is connected between second hydraulic fluid port and the 4th hydraulic fluid port, described
Switch valve and counterbalance valve series connection, and one end of the switch valve is connected to first working connection, the one of the counterbalance valve
End is connected to second working connection, and the switch valve is opened or closed to be connected to or disconnect first hydraulic fluid port and described second
Hydraulic fluid port, the counterbalance valve are equipped with pre-determined back-pressure value, to close the back when the second hydraulic fluid port pressure is less than pre-determined back-pressure value
Pressure valve.
In one embodiment, the rotary drilling rig master winch control system further includes balance valve group, described flat
The valve group that weighs is set on second working connection, to be connected to or disconnect second hydraulic fluid port and the 4th hydraulic fluid port, the balanced valve
The control port of group is connected to first working connection.
In one embodiment, the balance valve group includes check valve, the first balanced valve and the second balanced valve, the list
It is parallel on second working connection to valve, first balanced valve and second balanced valve, first balanced valve and institute
The control port for stating the second balanced valve is all connected to first working connection, and the flow of first balanced valve is less than described second
The flow of balanced valve.
In one embodiment, the switch valve is proportioning valve.
In one embodiment, the switch valve is proportional flow control valve or proportional pressure control valve, and the counterbalance valve is sequence
Valve or pressure reducing valve.
In one embodiment, the proportioning valve is electromagnetic proportional valve.
In one embodiment, the rotary drilling rig master winch control system further includes one-way throttle valve and overflow valve,
The both ends of the one-way throttle valve are connected to first working connection and second working connection, the both ends of the overflow valve
It is connected to first working connection and second working connection；And/or the rotary drilling rig master winch control system is also wrapped
Concatenated second one-way valve and third check valve are included, one end of the second one-way valve is connected to first working connection, described
One end of third check valve is connected to second working connection, and the rotary drilling rig master winch control system further includes the 5th oil
Mouthful, the 5th hydraulic fluid port is connected between the second one-way valve and the third check valve, and the second one-way valve and institute
It states third check valve and is positioned to allow for hydraulic oil and flow to first working connection or second working connection from the 5th hydraulic fluid port.
In one embodiment, the rotary drilling rig master winch control system further includes selector valve and the unlock oil that floats
Road, the both ends of the selector valve are connected to first working connection and second working connection, and alternatively with described
One working connection is connected to second working connection, and the oil outlet of the selector valve is connected to the floating unlock oil circuit, described floating
Dynamic unlock oil circuit is used to be connected to the brake of master winch.
In one embodiment, the floating unlock oil circuit includes floating to solve locking-valve, pressure reducing valve and hydraulic operated valve, described to subtract
Pressure valve is connected to the oil outlet of the selector valve, and the hydraulic operated valve is set between the pressure reducing valve and floating solution locking-valve.
The present invention also provides a kind of rotary drilling rigs, including above-mentioned rotary drilling rig master winch control system.
When drilling rod falls on bottom surface under quick condition in rotary drilling rig master winch control system of the invention and rotary drilling rig
It is sky that main winch motor, which loads, since back pressure, counterbalance valve closing, closing floating, and back pressure is arranged by wirerope by counterbalance valve
It suppresses, avoids steel wire rope looseness and disorder cable, and then avoid steel rope abrasion, substantially prolong the service life of wirerope.
Detailed description of the invention
Fig. 1 is the schematic illustration of the rotary drilling rig master winch control system of one embodiment of the invention.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiments of the present invention will be described in further detail.Implement below
Example is not intended to limit the scope of the invention for illustrating the present invention.
It please join Fig. 1, the rotary drilling rig master winch control system provided in one embodiment of the invention, including the first hydraulic fluid port 11,
Second hydraulic fluid port 13, the first working connection 15, the second working connection 17, balance valve group 19, switch valve 21, counterbalance valve 23, third hydraulic fluid port 25
With the 4th hydraulic fluid port 27.First working connection 15 is connected between the first hydraulic fluid port 11 and third hydraulic fluid port 25, and the second working connection 17 is connected to
Between second hydraulic fluid port 13 and the 4th hydraulic fluid port 27.It balances valve group 19 to be set on the second working connection 17, to be connected to or disconnect the second hydraulic fluid port
13 and the 4th hydraulic fluid port 27, the control port of balance valve group 19 be connected to the first working connection 15.Switch valve 21 and counterbalance valve 23 are connected,
And one end of switch valve 21 is connected to the first working connection 15, one end of counterbalance valve 23 is connected to the second working connection 17, switch valve 21
It opens or closes to be connected to or disconnect the first hydraulic fluid port 11 and the second hydraulic fluid port 13, counterbalance valve 23 is equipped with pre-determined back-pressure value, second
13 pressure of hydraulic fluid port closes counterbalance valve 23 when being less than pre-determined back-pressure value.
By this rotary drilling rig master winch control system, main winch motor is loaded when drilling rod falls on bottom surface under quick condition
For sky, since back pressure is arranged by counterbalance valve 23, counterbalance valve 23 is closed, and is closed and is floated, and back pressure suppresses wirerope, avoids steel
Cord relaxation and disorder cable, and then avoid steel rope abrasion, substantially prolong the service life of wirerope.
In the present embodiment, the first hydraulic fluid port 11 and the second hydraulic fluid port 13 are connected to the both ends of main pump, by main pump to the first oil
Mouth 11 or 13 fuel feeding of the second hydraulic fluid port.Second hydraulic fluid port 25 and the 4th hydraulic fluid port 27 are connected to the both ends of main winch motor, to master
Hoist motor fuel feeding, when the second 25 oil inlet of hydraulic fluid port, 27 oil return of the 4th hydraulic fluid port, main winch motor can be rotated forward, 27 oil inlet of the 4th hydraulic fluid port
When, 25 oil return of the second hydraulic fluid port, main winch motor can invert.
In the present embodiment, balance valve group 19 includes check valve 190, the first balanced valve 192 and the second balanced valve 194, unidirectionally
Valve 190, the first balanced valve 192 and the second balanced valve 194 are parallel on the second working connection 17, and the first balanced valve 192 and second is flat
The control port of weighing apparatus valve 194 is all connected to the first working connection 15, and the flow of the first balanced valve 192 is less than the second balanced valve 194
Flow.When master winch decline, hydraulic oil rotates lower section from 11 oil inlet of the first hydraulic fluid port, 13 oil return of the second hydraulic fluid port, main winch motor,
In the process, just start the small opening of operation handle fine motion, hydraulic fluid flow rate is smaller, and it is first flat first to open small flow for hydraulic oil
Weigh valve 192, shakes when opening the second balanced valve 194 of big flow again after flow increase, therefore can prevent master winch from transferring.
And in the prior art, the balanced valve of a firm discharge is only set, in master winch decentralization process, Guan Shikai when balanced valve,
It will cause master winch shake.Specifically in the present embodiment, two check valves 190 are balanced with the first balanced valve 192 and second respectively
Valve 194 is in parallel.
In the present embodiment, switch valve 21 is proportional flow control valve.Under quick condition, 13 oil inlet of the second hydraulic fluid port, the first hydraulic fluid port
11 oil returns, the hydraulic oil of the second hydraulic fluid port 13 successively pass through counterbalance valve 23, switch valve 21, i.e. the first hydraulic fluid port after the second working connection 17
11 are connected to the second hydraulic fluid port 13, realize that master winch floats.At this point, control can be passed through since switch valve 21 is proportional flow control valve
The flow of system exploitation valve 21 controls the floating speed of elevator, the different soil property of the hardness such as rock drilling achievable in this way and soil layer
When layer, floating speed can be adjusted according to different situations, for example, it is slower to enter floating speed when rock, and floating speed is very fast when weak soil.
It is appreciated that switch valve 21 can also be proportional pressure control valve, as long as switch valve 21 is proportioning valve to realize the control of floating speed i.e.
Can, proportioning valve is electromagnetic proportional valve, and uninterrupted is controlled by the size of current of control proportioning valve.By adjusting size of current control
Floating speed processed, it is very convenient.In the present embodiment, switch valve 21 is connected to the floating buttons of rotary drilling rig, presses floating buttons,
Switch valve 21 is opened.
In the present embodiment, counterbalance valve 23 is sequence valve or pressure reducing valve.Specifically, pre-determined back-pressure value may be set to 30bar.When
So, pre-determined back-pressure value can also be set as needed as other values.
In the present embodiment, rotary drilling rig master winch control system further includes one-way throttle valve 29, and the two of one-way throttle valve 29
End is connected to the first working connection 15 and the second working connection 17.Specifically, one end connecting balanced valve group of one-way throttle valve 29
19 control port.One-way throttle valve 29 includes the first check valve 292 and throttle valve 294 in parallel, the setting of the first check valve 292
Only to allow hydraulic oil to flow to the first working connection 15 from the second working connection 17.
In the present embodiment, rotary drilling rig master winch control system further includes concatenated second one-way valve 31 and third check valve
33, one end of second one-way valve 31 is connected to the first working connection 15, and one end of third check valve 33 is connected to the second working connection 17,
Rotary drilling rig master winch control system further includes the 5th hydraulic fluid port 35, and the 5th hydraulic fluid port 35 is connected to second one-way valve 31 and third is unidirectional
Between valve 33, and second one-way valve 31 and third check valve 33 are positioned to allow for hydraulic oil and flow to the first main oil from the 5th hydraulic fluid port 35
Road 15 or the second working connection 17.5th hydraulic fluid port 35 be used for external oil circuit connection, with give second one-way valve 31 or third check valve
33 fuel feeding.
In the present embodiment, rotary drilling rig master winch control system further includes overflow valve 37, and the both ends of overflow valve 37 connect respectively
It is connected to the first working connection 15 and the second working connection 17.
In the present embodiment, rotary drilling rig master winch control system further includes selector valve 39 and the unlock oil circuit 41 that floats, selection
The both ends of valve 39 are connected to the first working connection 15 and the second working connection 17, and alternatively main with the first working connection 15 and second
Oil circuit 17 is connected to, and the oil outlet of selector valve 39 is connected to floating unlock oil circuit 41, by the first hydraulic fluid port 11 or the second hydraulic fluid port 13
Oil inlet part introduces the unlock oil circuit 41 that floats.The unlock oil circuit 41 that floats is connected to the brake (not shown) of external master winch,
Hydraulic oil, which is floated after unlock oil circuit 41 enters brake, can unlock brake, to master winch take-off the brake, when master winch is in
When quick condition, enter the unlock oil circuit 41 that floats from the first hydraulic fluid port 11 or the second hydraulic fluid port 13 without hydraulic oil, it is therefore desirable to will float
Dynamic unlock oil circuit 41 is connected to external oil circuit, the unlock by external oil circuit to the realization of brake fuel feeding to brake.Specifically, it selects
Selecting valve 39 can be shuttle valve.
Specifically, the unlock oil circuit 41 that floats includes float solution locking-valve 412, pressure reducing valve 414 and hydraulic operated valve 416, pressure reducing valve 414
It is connected to the oil outlet of selector valve 39, hydraulic operated valve 416 is set to pressure reducing valve 414 between the solution locking-valve 412 that floats.Specifically, it floats
Solution locking-valve 412 is two-position four-way valve, and when it is located at right position, solution of floating locking-valve 412 is connected to hydraulic operated valve 416 and brake, when it
When positioned at left position, solution of floating locking-valve 412 is connected to external oil circuit and brake.
In the present embodiment, above-mentioned rotary drilling rig master winch control system is an overall balance valve, i.e., by above-mentioned rotary drilling rig
Master winch control system is incorporated into a valve body.
This rotary drilling rig master winch control system working principle will be briefly described below.When master winch decline,
Hydraulic oil enters from the first hydraulic fluid port 11, third hydraulic fluid port 25 is reached through the first working connection 15, into main winch motor, then from master file
It raises motor and comes out and enter the second working connection 17 through the 4th hydraulic fluid port 27, the second hydraulic fluid port 13 is flowed to after balancing valve group 19 and carries out oil return；
In the process, the section hydraulic oil entered from the first hydraulic fluid port 11 reaches the control port of balance valve group 19 through one-way throttle valve 29
Valve group 19 is balanced to open, is connected to the 4th hydraulic fluid port 27 with the second hydraulic fluid port 13.When master winch rises, hydraulic oil is from the second hydraulic fluid port
13 enter, and are balanced the first check valve 192 of valve group 19, the second working connection 17 reaches the 4th hydraulic fluid port 27, into main winch motor,
Then it is come out from main winch motor and enters the first working connection 15 through third hydraulic fluid port 25, then flowed to the first hydraulic fluid port 11 and carry out oil return.
When master winch is needed in quick condition, the floating buttons of rotary drilling rig are pressed, switch valve 21 is opened, hydraulic oil is from second
Hydraulic fluid port 13 enters, and the first check valve 192, the second working connection 17 through balance valve group 19 reach counterbalance valve 23 and in hydraulic fluid pressures
Lower opening counterbalance valve 23 is acted on, is thus directly connected to the first hydraulic fluid port 11 with the second hydraulic fluid port 13；In the process, solution of floating locking-valve
412 it is electric be in left position, external oil circuit to float solution 412 fuel feeding of locking-valve, and then give brake fuel feeding, contact the system of brake
It is dynamic, so that master winch is floated.
The present invention also provides a kind of rotary drilling rigs, including above-mentioned rotary drilling rig master winch control system.
In the accompanying drawings, for clarity, the size and relative size of layer and region can be exaggerated.It should be understood that working as
When element such as layer, region or substrate are referred to as on " being formed in ", " setting exists " or " being located at " another element, which can be straight
It connects and is arranged on another element, or there may also be intermediary elements.On the contrary, when element be referred to as " being formed directly into " or
When on " being set up directly on " another element, intermediary element is not present.
Herein unless specifically defined or limited otherwise, term " installation ", " connected ", " connection " should do broad sense reason
Solution, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can be mechanical connection, it can also be with
It is electrical connection；It can be directly connected, the connection inside two elements can also be can be indirectly connected through an intermediary.
For the ordinary skill in the art, the concrete meaning of above-mentioned term can be understood with concrete condition.
Herein, term " on ", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outside", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal" is to be based on the orientation or positional relationship shown in the drawings, merely to expression skill
The clear and description of art scheme is convenient, therefore is not considered as limiting the invention.
Herein, sequence adjective " first ", " second " for describing element etc. is used for the purpose of discriminative attributes class
As element, be not meant to that the element described in this way must be according to given sequence or time, space, grade or other
Limitation.
Herein, unless otherwise indicated, " multiple ", " several " are meant that two or more.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
Herein, the terms "include", "comprise" or any other variant thereof is intended to cover non-exclusive inclusion, are removed
It comprising those of listed element, but also may include other elements that are not explicitly listed.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (10)
1. a kind of rotary drilling rig master winch control system, which is characterized in that including the first hydraulic fluid port (11), the second hydraulic fluid port (13),
One working connection (15), the second working connection (17), switch valve (21), counterbalance valve (23), third hydraulic fluid port (25) and the 4th hydraulic fluid port (27),
First working connection (15) is connected between first hydraulic fluid port (11) and the third hydraulic fluid port (25), second working connection
(17) it is connected between second hydraulic fluid port (13) and the 4th hydraulic fluid port (27), the switch valve (21) and the counterbalance valve
(23) it connects, and one end of the switch valve (21) is connected to first working connection (15), one end of the counterbalance valve (23)
It is connected to second working connection (17), the switch valve (21) opens or closes to be connected to or disconnect first hydraulic fluid port (11)
With second hydraulic fluid port (13), the counterbalance valve (23) is equipped with pre-determined back-pressure value, to be less than in the second hydraulic fluid port (13) pressure
The counterbalance valve (23) are closed when pre-determined back-pressure value.
2. rotary drilling rig master winch control system as described in claim 1, which is characterized in that the rotary drilling rig master file
Raising control system further includes balance valve group (19), and the balance valve group (19) is set on second working connection (17), with connection
Or second hydraulic fluid port (13) and the 4th hydraulic fluid port (27) are disconnected, the control port of balance valve group (19) is connected to described
First working connection (15).
3. rotary drilling rig master winch control system as claimed in claim 2, which is characterized in that the balance valve group (19) includes
Check valve (190), the first balanced valve (192) and the second balanced valve (194), the check valve (190), first balanced valve
(192) it is parallel on second working connection (17) with second balanced valve (194), first balanced valve (192) and institute
The control port for stating the second balanced valve (194) is all connected to first working connection (15), the stream of first balanced valve (192)
Amount is less than the flow of second balanced valve (194).
4. rotary drilling rig master winch control system as claimed in claim 3, which is characterized in that the switch valve (21) is ratio
Valve.
5. rotary drilling rig master winch control system as described in claim 1 or 4, which is characterized in that the switch valve (21) is
Proportional flow control valve or proportional pressure control valve, the counterbalance valve (23) are sequence valve or pressure reducing valve.
6. rotary drilling rig master winch control system as claimed in claim 4, which is characterized in that the proportioning valve is solenoid-operated proportional
Valve.
7. rotary drilling rig master winch control system as described in claim 1, which is characterized in that the rotary drilling rig master winch control
System processed further includes one-way throttle valve (29) and overflow valve (37), and the both ends of the one-way throttle valve (29) are connected to described
The both ends of first working connection (15) and second working connection (17), the overflow valve (37) are connected to the described first main oil
Road (15) and second working connection (17)；And/or the rotary drilling rig master winch control system further includes concatenated second single
To valve (31) and third check valve (33), one end of the second one-way valve (31) is connected to first working connection (15), institute
The one end for stating third check valve (33) is connected to second working connection (17), and the rotary drilling rig master winch control system is also wrapped
Include the 5th hydraulic fluid port (35), the 5th hydraulic fluid port (35) be connected to the second one-way valve (31) and the third check valve (33) it
Between, and the second one-way valve (31) and the third check valve (33) are positioned to allow for hydraulic oil from the 5th hydraulic fluid port (35)
Flow to first working connection (15) or second working connection (17).
8. rotary drilling rig master winch control system as described in claim 1, which is characterized in that the rotary drilling rig master winch control
System processed further includes selector valve (39) and unlock oil circuit (41) of floating, and the both ends of the selector valve (39) are connected to described the
One working connection (15) and second working connection (17), and alternatively with first working connection (15) and second working connection
(17) it is connected to, the oil outlet of the selector valve (39) is connected to floating unlock oil circuit (41), and the floating unlocks oil circuit
(41) for being connected to the brake of master winch.
9. rotary drilling rig master winch control system as claimed in claim 8, which is characterized in that the floating unlocks oil circuit (41)
Including floating, solution locking-valve (412), pressure reducing valve (414) and hydraulic operated valve (416), the pressure reducing valve (414) are connected to the selector valve
(39) oil outlet, the hydraulic operated valve (416) are set between the pressure reducing valve (414) and floating solution locking-valve (412).
10. a kind of rotary drilling rig, which is characterized in that including rotary drilling rig master winch control described in any one of claim 1-9
System processed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910480343.5A CN110104576A (en) | 2019-06-04 | 2019-06-04 | Rotary drilling rig master winch control system and rotary drilling rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910480343.5A CN110104576A (en) | 2019-06-04 | 2019-06-04 | Rotary drilling rig master winch control system and rotary drilling rig |
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| Publication Number | Publication Date |
|---|---|
| CN110104576A true CN110104576A (en) | 2019-08-09 |
Family
ID=67493850
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910480343.5A Pending CN110104576A (en) | 2019-06-04 | 2019-06-04 | Rotary drilling rig master winch control system and rotary drilling rig |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113482521A (en) * | 2021-07-23 | 2021-10-08 | 徐州徐工基础工程机械有限公司 | Parallel power system of rotary drilling rig |
| WO2023216406A1 (en) * | 2022-05-12 | 2023-11-16 | 徐州徐工基础工程机械有限公司 | Steel wire rope protection control system and method for rotary drilling rig |
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