CN104895856B - A kind of winch big flow valve group and hydraulic system - Google Patents
A kind of winch big flow valve group and hydraulic system Download PDFInfo
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- CN104895856B CN104895856B CN201510160146.7A CN201510160146A CN104895856B CN 104895856 B CN104895856 B CN 104895856B CN 201510160146 A CN201510160146 A CN 201510160146A CN 104895856 B CN104895856 B CN 104895856B
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- 239000012530 fluid Substances 0.000 claims abstract description 117
- 239000003921 oil Substances 0.000 claims abstract description 73
- 239000010729 system oil Substances 0.000 claims abstract description 22
- 230000008859 change Effects 0.000 claims description 36
- 239000010720 hydraulic oil Substances 0.000 description 7
- 239000007788 liquid Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 3
- 230000033228 biological regulation Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 239000013535 sea water Substances 0.000 description 2
- 206010008469 Chest discomfort Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- 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
- F15B13/021—Valves for interconnecting the fluid chambers of an actuator
-
- 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
- B66D1/02—Driving gear
- B66D1/08—Driving gear incorporating fluid motors
-
- 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
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more 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
- F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more 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
- F15B2013/002—Modular valves, i.e. consisting of an assembly of interchangeable components
- F15B2013/004—Cartridge 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/40—Flow control
-
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B2211/71—Multiple output members, e.g. multiple hydraulic motors or cylinders
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention discloses a kind of winch big flow valve group and hydraulic system, belong to winch hydraulic system technical field, first hydraulic fluid port of its first working connection respectively with system oil inlet and the first motor is connected, second hydraulic fluid port of the first motor is connected with the first hydraulic fluid port of the second inserted valve and the second hydraulic fluid port of the 3rd inserted valve respectively, first hydraulic fluid port of the second motor is connected with the first hydraulic fluid port of the first inserted valve and the second hydraulic fluid port of the second inserted valve respectively, second hydraulic fluid port of the second motor is connected with the second working connection, and the second working connection is connected with system oil return mouthful；Second hydraulic fluid port of the first inserted valve and the first oil inlet of shuttle valve are connected with the first working connection respectively, and the first hydraulic fluid port of the 3rd inserted valve and the second oil inlet of shuttle valve are connected with the second working connection respectively；First hydraulic fluid port of reversal valve is connected with the oil-out of shuttle valve, and the second hydraulic fluid port is connected with the control port of the second inserted valve, and control port of the 3rd hydraulic fluid port respectively with the first inserted valve and the second inserted valve is connected, and the 4th hydraulic fluid port is connected with drain tap.
Description
Technical field
The present invention relates to winch hydraulic system technical field, more particularly to a kind of winch big flow valve group and hydraulic system.
Background technology
The motor of trawler is typically driven by hydraulic system, and motor can then drive winch to rotate and then implement trawlnet work
Industry, the normal operation of the large-scale trawler in ocean needs enough power, and this needs hydraulic system to keep larger fluid stream
Measure with through-current capability to improve the power of motor, meanwhile, in order to realize the stable operation of the large-scale trawler in ocean, in addition it is also necessary to liquid
Pressure system can efficiently adjust the speed of motor in the case of big flow operation.
In the prior art, there is the hydraulic system that the oily flow of some maximum hydraulic pressures is hundreds of Liter Per Minutes, be low discharge liquid
Pressure system, valve group through-current capability is small, does not also possess the ability for controlling the efficient speed governing of motor under the conditions of big flow.
The content of the invention
In order to solve problem of the prior art, the embodiments of the invention provide a kind of winch big flow valve group and hydraulic pressure system
System, technical scheme is as follows：
On the one hand, the embodiments of the invention provide a kind of winch big flow valve group, the winch big flow valve group includes：The
One working connection, the second working connection, the first inserted valve, the second inserted valve, the 3rd inserted valve, shuttle valve and the commutation of the first two-position four-way
Valve；
One end of first working connection is connected with system oil inlet, the other end of first working connection and described first
The first hydraulic fluid port connection of motor, the second hydraulic fluid port of first motor the first hydraulic fluid port respectively with second inserted valve and institute
The second hydraulic fluid port connection of the 3rd inserted valve is stated, the first hydraulic fluid port of second motor is oily with the first of first inserted valve respectively
The second hydraulic fluid port connection of mouth and second inserted valve, the second hydraulic fluid port of second motor and the one of second working connection
End connection, the other end of second working connection is connected with system oil return mouthful；
Second hydraulic fluid port of first inserted valve and the first oil inlet of the shuttle valve connect with first working connection respectively
Logical, the first hydraulic fluid port of the 3rd inserted valve and the second oil inlet of the shuttle valve are connected with second working connection respectively；
First hydraulic fluid port of first two-position four way change valve is connected with the oil-out of the shuttle valve, the second hydraulic fluid port with it is described
The control port connection of second inserted valve, the control oil of the 3rd hydraulic fluid port respectively with first inserted valve and the 3rd inserted valve
Mouth connection, the 4th hydraulic fluid port is connected with drain tap.
Further, the winch big flow valve group also includes the 4th inserted valve and proportional pressure control valve, the 4th inserting
The oil inlet of valve is connected with control port, and the oil inlet of the 4th inserted valve is connected with first working connection, and the described 4th
The oil-out of inserted valve is connected with second working connection, control port and the proportional pressure control valve of the 4th inserted valve
Oil inlet is connected, and the oil-out of the proportional pressure control valve is connected with the drain tap.
Further, the winch big flow valve group also includes safety valve, the oil inlet of the safety valve and the described 4th
The control port connection of inserted valve, the oil-out of the safety valve is connected with the drain tap.
Further, the winch big flow valve group also includes the 5th inserted valve, overflow valve and the commutation of the second two-position four-way
Valve, the oil inlet of the 5th inserted valve is connected with control port, oil inlet and the described second main oil of the 5th inserted valve
One end connection on road, the control port of the 5th inserted valve is connected with the oil inlet of the overflow valve, the 5th inserted valve
The oil-out of oil-out and the overflow valve connected respectively with the system oil return mouthful；
First hydraulic fluid port of second two-position four way change valve is connected with the system oil return mouthful, and the second hydraulic fluid port is normally closed, the
Three hydraulic fluid ports are connected with the control port of the 5th inserted valve, and the 4th hydraulic fluid port is normally closed.
Further, the Opening pressure of the overflow valve is 0.5~3MPa.
Further, the winch big flow valve group also includes the 6th inserted valve and balanced valve, the 6th inserted valve
Oil inlet is connected with control port, and the oil inlet of the 6th inserted valve is connected with first working connection, the 6th inserting
The oil-out of valve is connected with the system oil inlet, the oil-feed of the control port of the 6th inserted valve respectively with the balanced valve
Mouth is connected with control port, and the oil-out of the balanced valve is connected with the drain tap, the control port of the balanced valve and institute
State the connection of the second working connection.
Further, the winch big flow valve group also include the 7th inserted valve, the oil inlet of the 7th inserted valve with
System oil inlet connection, the one end of the oil-out and control port of the 7th inserted valve respectively with first working connection
Connection.
Further, it is additionally provided with the pipeline that the control port of the 7th inserted valve is connected with first working connection
Throttle cover plate, and the throttle opening of the throttling cover plate is adjustable.
Further, first pressure sensing has been connected respectively it on first working connection and on two oil circuits of the master
Device and second pressure sensor.
On the other hand, the embodiment of the present invention also provides a kind of winch large-flow hydraulic system, including above-mentioned winch big flow
Valve group, in addition to the first motor and the second motor being connected with winch big flow valve group.
The beneficial effect of technical scheme provided in an embodiment of the present invention is：
By by first, second hydraulic fluid port of three inserted valves respectively with first, second working connection and first, second motor
Intersect connection, the connection in series-parallel state of first, second motor, the first inserted valve can be changed by changing the on off state of three inserted valves
Control port with the 3rd inserted valve, which is connected, causes both on off states identical, due to the first inserted valve, the 3rd inserted valve two
The control port of person and the control port of the second inserted valve are respectively communicated with the drain tap of the hydraulic oil or low-pressure end at shuttle valve,
Under the switching of first two-position four way change valve, both the first inserted valve, the 3rd inserted valve and the 3rd inserted valve have opposite switch
State, and then the first motor and the second motor can switch connection in series-parallel connection, the oil in the first working connection when causing the fluid to circulate
In the case that flow quantity is certain, during two motor switching connection in series-parallel connections, motor integrally can be in high rpm low torque and the slow-speed of revolution
Switch between the state of high torque, the liquid of big flow is being realized in the use for the inserted valve that fit structure is simple and through-current capability is big
While pressing system job, the speed of winch can be efficiently adjusted.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, makes required in being described below to embodiment
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for
For those of ordinary skill in the art, on the premise of not paying creative work, other can also be obtained according to these accompanying drawings
Accompanying drawing.
Fig. 1 is a kind of hydraulic schematic diagram for winch big flow valve group that the embodiment of the present invention 1 is provided.
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing to embodiment party of the present invention
Formula is described in further detail.
Embodiment 1
Referring to Fig. 1, the embodiments of the invention provide a kind of winch big flow valve group, the valve group includes：First working connection 1,
Second working connection 4, the first inserted valve 5, the second inserted valve 6, the 3rd inserted valve 7, the two-position four way change valve 9 of shuttle valve 8 and first；
One end of first working connection 1 is connected with system oil inlet P, and the of the other end of the first working connection 1 and the first motor 2
One hydraulic fluid port is connected, the second hydraulic fluid port of the first motor 2 respectively with the first hydraulic fluid port of the second inserted valve 6 and the 3rd inserted valve 7 the
Two hydraulic fluid ports are connected, the first hydraulic fluid port of the second motor 3 respectively with the first hydraulic fluid port of the first inserted valve 5 and the second inserted valve 6 the
Two hydraulic fluid ports are connected, and the second hydraulic fluid port of the second motor 3 is connected with one end of the second working connection 4, and the other end of the second working connection 4 is with being
Oil return inlet T of uniting connection；
Wherein, the first oil inlet of the second hydraulic fluid port of the first inserted valve 5 and shuttle valve 8 is connected with the first working connection respectively, the
First hydraulic fluid port of three inserted valves 7 and the second oil inlet of shuttle valve 8 are connected with the second working connection 4 respectively；
First hydraulic fluid port of the first two-position four way change valve 9 is connected with the oil-out of shuttle valve 8, the first two-position four way change valve 9
The second hydraulic fluid port connected with the control port of the second inserted valve 6, the 3rd hydraulic fluid port of the first two-position four way change valve 9 is respectively with first
The control port of inserted valve 5 and the 3rd inserted valve 6 is connected, and the 4th hydraulic fluid port and the drain tap L of the first two-position four way change valve 9 connect
It is logical.
Specifically, winch big flow valve group is to include the integrated valve group of multiple valve members, can be used for the motor for driving winch
In the operating of mechanism, the present embodiment, the motor mechanism of valve group driving includes two groups of motors, as shown in figure 1, respectively the first motor
2 and second motor 3, and the first motor 2 and the second motor 3 respectively include two motors in parallel, four motors may have thing
Mechanical synchronization constraint in reason connection, to cause the rotating speed of this four motors identical；Wherein, the first inserted valve 5, the second inserted valve
6 and the 3rd first hydraulic fluid port of inserted valve 7 be the end hydraulic fluid port relative with control port, the second hydraulic fluid port is the sidepiece oil of inserted valve
Mouthful；Wherein, in the first state, the first hydraulic fluid port of the first two-position four way change valve 9 and the connection of the 3rd hydraulic fluid port, the first two-position four-way
Second hydraulic fluid port of reversal valve 9 and the 4th hydraulic fluid port connection, in the second condition, the first hydraulic fluid port of the first two-position four way change valve 9 and
Second hydraulic fluid port is connected, the 3rd hydraulic fluid port of the first two-position four way change valve 9 and the connection of the 4th hydraulic fluid port, the first two-position four way change valve 9
Can be solenoid directional control valve, first state is that solenoid directional control valve obtains electric, and the second state is solenoid directional control valve dead electricity；The present embodiment
In, the hydraulic fluid port naming method to reversal valve is needle sort during another mistake using the lower right corner hydraulic fluid port of element shown in scheming as the first hydraulic fluid port
Other hydraulic fluid ports.
In the present embodiment, the first inserted valve 5, the second inserted valve 6, the 3rd inserted valve 7, the two-position four-way of shuttle valve 8 and first
The switching to motor speed is mainly realized in the combination of reversal valve 9, and then adjusts the output torque for the winch being connected with motor, herein
So that oil pressure in the first working connection 1 is higher as an example, the course of work to the hydraulic system of the embodiment of the present invention is illustrated.
When the first hydraulic fluid port of the first two-position four way change valve 9 and the second hydraulic fluid port are connected, the 3rd hydraulic fluid port and the 4th hydraulic fluid port are connected
When, the partial high pressure oil entered at the first working connection 1 enters the second inserted valve 6 through shuttle valve 8, the first two-position four way change valve 9
Control port, while the first inserted valve 5 connects the drain tap L of low pressure with the control port of the 3rd inserted valve 7, partial high pressure oil
The second working connection 4 for entering after the first inserted valve 5 after second motor 3 and flowing into low pressure is opened, the second inserted valve 6 is closed, and part is high
The second working connection 4 that low pressure is flowed into after opening the 3rd inserted valve 7 through the first motor 2 is pressed oil, now the first motor 2 and the second motor
3 (being four motor parallel connections in the present embodiment) in parallel and respectively hydraulic oil, now the rotating speed of each motor is relatively low, winch output low speed
High pulling torque, motor described below is the whole motor sub-assembly of the first motor 2 and the second motor 3 composition.
When the first hydraulic fluid port of the first two-position four way change valve 9 and the 3rd hydraulic fluid port are connected, the second hydraulic fluid port and the 4th hydraulic fluid port are connected
When, the partial high pressure oil entered at the first working connection 1 enters the first inserted valve 5 through shuttle valve 8, the first two-position four way change valve 9
With the control port of the 3rd inserted valve 7, the control port of the second inserted valve 6 connects the drain tap L of low pressure, now the first inserted valve
5 and the 3rd inserted valve 7 close, the hydraulic oil in the first working connection 1 enter the first motor 2, then open the second inserted valve 6, then
Into the second motor 3, the second working connection 4 of low pressure is finally entered, now the first motor 2 and the second motor 3 are connected, relative to horse
Up to there is higher rotating speed during parallel connection, the now winch output small moment of torsion of high speed.
It is readily apparent that, because the oil circuit of the valve group is symmetrical, when oil pressure is higher in the second working connection 4, the course of work is therewith
It is similar.
By the electric control reversing to the first two-position four way change valve 9, realize to the series-parallel switching of motor, it is final to realize
Switching between the low-speed big and high speed small moment of torsion of system output, the winch connected when motor mechanism in Light Condition,
Or during underloading half, can be by controlling three inserted valves (the first inserted valve 5, the second inserted valve 6, the 3rd inserted valves
7) opening and closing, to realize under same oil providing condition, winch is in motor parallel connection and the speed ratio of motor series connection
For 1：2 speed control, improves operating efficiency；Meanwhile, system running speed is improved when winch load is relatively low, can be shortened
The run time of each equipment in hydraulic system, so as to reduce the energy consumption of system.
Further, the valve group also includes the 4th inserted valve 10 and proportional pressure control valve 11, the oil inlet of the 4th inserted valve 10
Connected with control port, the oil inlet of the 4th inserted valve 10 is connected with the first working connection 1, the oil-out of the 4th inserted valve 10 and
Two working connections 4 are connected, and the control port of the 4th inserted valve 10 is connected with the oil inlet of proportional pressure control valve 11, proportional pressure control valve 11
Oil-out is connected with drain tap L.
Specifically, the 4th inserted valve 10 and proportional pressure control valve 11 are mainly used in adjusting the pressure at motor two ends, and then realize
The tension force of winch, in the actual condition of trawler, fishing boat winch includes following three kinds of operating modes：It is passive to put net, towing
And actively receive net.
Network process is put passive, fishing net is driven winch, motor passive movement by seawater resistance, now fluid is from the
Two working connections 4 flow through two motors and are discharged in the first working connection 1, then with the hydraulic oil exported at oil inlet P in the 4th inserted valve
Collaborate before 10, returned to behind interflow through the 4th inserted valve 10 in second working connection 4 on the right side of the second motor 3, due to the 4th inserting
The oil inlet of valve 10 is connected with the control port of its own, and the control port of the 4th inserted valve 10 is entered with proportional pressure control valve 11 again
Hydraulic fluid port is connected, and the 4th inserted valve 10 can just be opened when the hydraulic oil pressure at interflow exceedes the setting pressure of proportional pressure control valve 11, this
The pressure differential of Shi Mada both sides (namely the first working connection 1 and second working connection 4) is also just set up by proportional pressure control valve 11, it is ensured that
Tension force when passively putting net on the wirerope of fishing net is controllable；Meanwhile, at system oil inlet P provide fluid through the 4th inserted valve 10,
Returned to after second working connection 4, the second motor 3, the first motor 2 and circulation is constituted in first working connection 1, the oil by motor can be given
Liquid is changed oil, to play a part of cooling down motor fluid.
During towing, fishing net puts the wirerope length that net length reaches setting, and system can suitably heighten ratio automatically
The pressure of overflow valve 11 so that winch stops putting net.In this working stage, due to the presence of marine stormy waves, the load force meeting of winch
Do not stop to change within the specific limits, the oil pressure of corresponding motor both sides has certain fluctuation, thus winch can very little model
Net is ceaselessly put in enclosing and net is received, this process can be adjusted the pressure of proportional pressure control valve 11 by the integrated console of hydraulic system
To complete, it is ensured that system tension is constant within the specific limits, while also ensureing that wirerope length changes in setting range.
It is final to enable the torsion that motor is provided, it is necessary to heighten the pressure of proportional pressure control valve 11 in network process is actively received
Square is more than the load torque that seawater is applied to winch.In this working stage, high-voltage oil liquid drives motor actively through the first working connection 1
Motion, adjusts the pressure of proportional pressure control valve 11, you can the tension force of net is received in regulation, when receiving the increase of net tension force, the receipts net spee of system
Also it can increase therewith.
Further, the valve group also includes safety valve 12, the control oil of the oil inlet of safety valve 12 and the 4th inserted valve 10
Mouth connection, the oil-out of safety valve 12 is connected with drain tap L.
Specifically, in the present embodiment, safety valve 12 can be an overflow valve, and the Opening pressure of safety valve 12 is more than ratio
Overflow valve 11 but the safe-working pressure for being less than motor, when the operating pressure of motor closes on safe-working pressure, safety valve 12
Can first it open, partial high pressure oil flows into drain tap L through safety valve 12, and motor is played a protective role.
Further, the valve group also includes the 5th inserted valve 13, the two-position four way change valve 15 of overflow valve 14 and second, the 5th
The oil inlet of inserted valve 13 is connected with control port, and the oil inlet of the 5th inserted valve 13 is connected with 4 one end of the second working connection, the
The control port of five inserted valves 13 is connected with the oil inlet of overflow valve 14, the 5th oil-out of inserted valve 13 and going out for overflow valve 14
Hydraulic fluid port is connected with system oil return mouthful T respectively；
First hydraulic fluid port of the second two-position four way change valve 15 is connected with system oil return mouthful T, the second two-position four way change valve 15
The second hydraulic fluid port it is normally closed, the 3rd hydraulic fluid port of the second two-position four way change valve 15 is connected with the control port of the 5th inserted valve 13,
4th hydraulic fluid port of two two-position four way change valves 15 is normally closed.
Specifically, in the first state, the 3rd hydraulic fluid port of the second two-position four way change valve 15 and the connection of the 4th hydraulic fluid port, other
Hydraulic fluid port is not turned on, in the second condition, the first hydraulic fluid port of the second two-position four way change valve 15 and the connection of the 3rd hydraulic fluid port, other hydraulic fluid ports
It is not turned on, the second two-position four way change valve 15 can be solenoid directional control valve, wherein, first state is that solenoid directional control valve obtains electric, the
Two-state is solenoid directional control valve dead electricity, and the 5th inserted valve 13, the two-position four way change valve 15 of overflow valve 14 and second are mainly used in structure
Into counterbalance valve.
It is above-mentioned it is passive put network process, the load of winch is larger to drive motor reversion, now the working condition of motor and
Pump is similar, and low pressure chamber of the fluid through motor in the second working connection 4 flows back to high pressure chest, finally flows into the first working connection 1, due to
The low pressure chamber of motor is connected through the second working connection 4 with system oil return mouthful T, in order to ensure motor energy normal work in pump condition,
Need in the certain back pressure of low pressure chamber (second this side of the working connection 4) formation of motor；By operating the second two-position four-way to commutate
Valve 15 arrive first state, now the 3rd hydraulic fluid port of the second two-position four way change valve 15 and the 4th hydraulic fluid port connection, the 4th hydraulic fluid port again not
Turn on, now the obstructed oil of the second two-position four way change valve 15, the fluid in the second working connection 4 needs to return to through the 5th inserted valve 13
System oil return mouthful T, and the Opening pressure of the 5th inserted valve 13 is controlled by overflow valve 14, therefore, the unlatching pressure of regulation relief valve 14
Power can just regulate and control the back pressure of motor low pressure chamber, wherein, the Opening pressure of overflow valve 14 can be set as 0.5~3MPa.
Further, the valve group also includes the 6th inserted valve 16 and balanced valve 17, the oil inlet of the 6th inserted valve 16 and control
Liquefaction mouthful connection, the oil inlet of the 6th inserted valve 16 is connected with the first working connection 1, and the oil-out of the 6th inserted valve 16 enters with system
Hydraulic fluid port P is connected, and the control port of the 6th inserted valve 16 is connected with the oil inlet of balanced valve 17 and control port respectively, balanced valve 17
Oil-out connected with drain tap L, the control port of balanced valve 17 is connected with the second working connection 4.
Specifically, because the oil inlet of balanced valve 17 is through the 6th inserted valve 16 the first working connection 1 of connection, the control of balanced valve 17
Liquefaction mouthful the second working connection 4 of connection, the oil-out of balanced valve 17 is connected with drain tap L again so that balanced valve 17 can adjust horse
Up to the pressure difference at two ends, the gravity to balance the load on winch, by the Opening pressure of adjustment valve 17, winch is in overload
When interior to a certain degree, oil pressure at the oil inlet of balanced valve 17 is smaller to cause balanced valve 17 not to be unlocked, now the oil in valve group
Liquid does not flow, and it is constant that the weight loaded on winch is maintained at present position；When weight overloads to a certain extent, balanced valve 17 is opened
Open but while the pressure difference at motor two ends can be adjusted, make motor uniform rotation and then cause weight uniform descent, prevent weight from accelerating
Decline is caused danger, and improves the security performance of system.
Further, the valve group also includes the 7th inserted valve 18, and oil inlet and the system oil inlet P of the 7th inserted valve 18 connect
Logical, the one end of the oil-out of the 7th inserted valve 18 and control port respectively with the first working connection 1 is connected.
Specifically, the 7th inserted valve 18 is arranged between the first working connection 1 and system oil inlet P, is led for adjusting first
Input pressure in oil circuit 1.
Further, throttling is additionally provided with the pipeline that the control port of the 7th inserted valve 18 is connected with the first working connection 1
Cover plate 19, the throttle opening for the cover plate 19 that throttles is adjustable.
Specifically, by adjusting the throttle opening at throttling cover plate 19, the control port of the 7th inserted valve 18 can be adjusted
The oil pressure at place, and then adjust the Opening pressure of the 7th inserted valve 18.
Further, on the first working connection 1 and the He of first pressure sensor 20 has been connected respectively it on the second working connection 4
Second pressure sensor 21.
Specifically, first pressure sensor 20 is used to obtain the oil pressure data in the first working connection 1 in real time, and second pressure is passed
Sensor 21 is used to obtain the oil pressure data in the second working connection 4 in real time, and hydraulic pressure system can be understood in time according to these oil pressure data
Pressure condition in system working connection.
A kind of winch big flow valve group provided in an embodiment of the present invention, by by first, second hydraulic fluid port of three inserted valves
Intersect respectively with first, second working connection and first, second motor and connect, changing the on off state of three inserted valves can change
Become the connection in series-parallel state of first, second motor, the control port connection of the first inserted valve and the 3rd inserted valve causes both open
Off status is identical, due to the control port and the control port point of the second inserted valve of both the first inserted valve, the 3rd inserted valve
The drain tap of hydraulic oil that Lian Tong be at shuttle valve or low-pressure end, under the switching of the first two-position four way change valve, the first inserted valve,
Both 3rd inserted valves and the 3rd inserted valve have an opposite on off state, and then the first motor and the second horse when causing the fluid to circulate
Up to that can switch connection in series-parallel connection, in the case that the fluid flow in the first working connection is certain, two motor switching connection in series-parallel connect
When connecing, motor can integrally switch between the state of high rpm low torque and slow-speed of revolution high torque, and fit structure is simple and through-flow
The use of the big inserted valve of ability, while the hydraulic system operation of big flow is realized, can efficiently adjust the speed of winch
Degree.
Embodiment 2
A kind of winch large-flow hydraulic system of offer of the embodiment of the present invention, including the winch described in above-described embodiment 1 are big
Flow valve group, in addition to the first motor and the second motor being connected with valve group.
A kind of winch large-flow hydraulic system provided in an embodiment of the present invention, by by the first, second of three inserted valves
Hydraulic fluid port intersects with first, second working connection and first, second motor respectively to be connected, and the on off state for changing three inserted valves is
The connection in series-parallel state of first, second motor can be changed, the control port connection of the first inserted valve and the 3rd inserted valve causes both
On off state it is identical, due to both the first inserted valve, the 3rd inserted valve control port and the second inserted valve control oil
Mouth is respectively communicated with the drain tap of the hydraulic oil or low-pressure end at shuttle valve, under the switching of the first two-position four way change valve, and first inserts
Dress valve, both the 3rd inserted valves and the 3rd inserted valve have an opposite on off state, so when causing the fluid to circulate the first motor and
Second motor can switch connection in series-parallel connection, in the case that the fluid flow in the first working connection is certain, two motor switching strings
When being connected in parallel, motor can integrally switch between the state of high rpm low torque and slow-speed of revolution high torque, and fit structure is simple
And the use of the big inserted valve of through-current capability, while the hydraulic system operation of big flow is realized, it can efficiently adjust strand
The speed of car.
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent substitution and improvements made etc. should be included in the scope of the protection.
Claims (6)
1. a kind of winch big flow valve group, it is adaptable to control the operating of the first motor and the second motor, it is characterised in that the strand
Car big flow valve group includes：First working connection, the second working connection, the first inserted valve, the second inserted valve, the 3rd inserted valve, shuttle valve
And first two-position four way change valve；
One end of first working connection is connected with system oil inlet, the other end of first working connection and first motor
The connection of the first hydraulic fluid port, the second hydraulic fluid port of first motor respectively with the first hydraulic fluid port of second inserted valve and described the
The second hydraulic fluid port connection of three inserted valves, the first hydraulic fluid port of second motor respectively with the first hydraulic fluid port of first inserted valve with
And the second hydraulic fluid port connection of second inserted valve, one end of the second hydraulic fluid port of second motor and second working connection connects
Logical, the other end of second working connection is connected with system oil return mouthful；
Second hydraulic fluid port of first inserted valve and the first oil inlet of the shuttle valve are connected with first working connection respectively, institute
Second oil inlet of the first hydraulic fluid port and the shuttle valve of stating the 3rd inserted valve is connected with second working connection respectively；
First hydraulic fluid port of first two-position four way change valve is connected with the oil-out of the shuttle valve, the second hydraulic fluid port and described second
The control port connection of inserted valve, the 3rd hydraulic fluid port connects with the control port of first inserted valve and the 3rd inserted valve respectively
Logical, the 4th hydraulic fluid port is connected with drain tap；
The winch big flow valve group also includes the 5th inserted valve, overflow valve and the second two-position four way change valve, and the described 5th inserts
The oil inlet of dress valve is connected with control port, and the oil inlet of the 5th inserted valve is connected with one end of second working connection,
The control port of 5th inserted valve is connected with the oil inlet of the overflow valve, the oil-out of the 5th inserted valve and described
The oil-out of overflow valve mouthful is connected with the system oil return respectively, the first hydraulic fluid port of second two-position four way change valve with it is described
System oil return mouthful connection, the second hydraulic fluid port is normally closed, and the 3rd hydraulic fluid port is connected with the control port of the 5th inserted valve, and the 4th hydraulic fluid port is normal
Close；
The winch big flow valve group also includes the 6th inserted valve and balanced valve, the oil inlet and control oil of the 6th inserted valve
Mouth connection, the oil inlet of the 6th inserted valve is connected with first working connection, the oil-out of the 6th inserted valve and institute
The connection of system oil inlet is stated, the control port of the 6th inserted valve connects with the oil inlet of the balanced valve and control port respectively
Logical, the oil-out of the balanced valve is connected with the drain tap, and the control port of the balanced valve connects with second working connection
It is logical；
The winch big flow valve group also includes the 7th inserted valve, oil inlet and the system oil inlet of the 7th inserted valve
Connection, the one end of the oil-out and control port of the 7th inserted valve respectively with first working connection is connected, and the described 7th
Throttling cover plate, the section of the throttling cover plate are additionally provided with the pipeline that the control port of inserted valve is connected with first working connection
Flow aperture adjustable.
2. winch big flow valve group according to claim 1, it is characterised in that the winch big flow valve group also includes the
Four inserted valves and proportional pressure control valve, the oil inlet of the 4th inserted valve connects with control port, and the 4th inserted valve enters
Hydraulic fluid port is connected with first working connection, and the oil-out of the 4th inserted valve is connected with second working connection, and the described 4th
The control port of inserted valve is connected with the oil inlet of the proportional pressure control valve, the oil-out of the proportional pressure control valve and the draining
Mouth connection.
3. winch big flow valve group according to claim 2, it is characterised in that the winch big flow valve group also includes peace
Full valve, the oil inlet of the safety valve is connected with the control port of the 4th inserted valve, the oil-out of the safety valve and institute
State drain tap connection.
4. winch big flow valve group according to claim 1, it is characterised in that the Opening pressure of the overflow valve is 0.5
~3MPa.
5. the winch big flow valve group according to any one of Claims 1 to 4, it is characterised in that on first working connection
First pressure sensor and second pressure sensor have been connected respectively with second working connection.
6. a kind of winch large-flow hydraulic system, it is characterised in that including the big stream of winch as described in above-mentioned any claim
Measure valve group, in addition to the first motor and the second motor being connected with the winch big flow valve group.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510160146.7A CN104895856B (en) | 2015-04-07 | 2015-04-07 | A kind of winch big flow valve group and hydraulic system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510160146.7A CN104895856B (en) | 2015-04-07 | 2015-04-07 | A kind of winch big flow valve group and hydraulic system |
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| CN104895856B true CN104895856B (en) | 2017-09-19 |
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| CN110725815B (en) * | 2019-09-25 | 2024-09-10 | 四川宏华石油设备有限公司 | Hydraulic device |
| CN114017401B (en) * | 2021-10-14 | 2024-09-17 | 中国煤炭科工集团太原研究院有限公司 | Integrated control valve oil circuit, integrated control valve and hydraulic control system |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1006085B (en) * | 1987-08-15 | 1989-12-13 | 石家庄煤矿机械厂 | Hydraulic control speed changing-regulating circuit |
| DE19913275A1 (en) * | 1999-03-24 | 2000-09-28 | Mannesmann Rexroth Ag | Hydraulic control arrangement for operating a winch in fiering, hoisting and mooring operation |
| CN202099824U (en) * | 2011-05-24 | 2012-01-04 | 中交上海航道局有限公司 | Return oil circuit of reamer hydraulic motor of cutter suction dredger |
| CN102425578A (en) * | 2011-11-24 | 2012-04-25 | 武汉船用机械有限责任公司 | Novel double-motor serial-parallel automatic switching device |
| CN103423488B (en) * | 2013-07-23 | 2016-02-17 | 武汉船用机械有限责任公司 | A kind of auto-tensioning valve group |
| CN104163385B (en) * | 2014-07-24 | 2016-09-21 | 武汉船用机械有限责任公司 | A kind of winch hydraulic control system |
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