CN109114053A - A kind of more winch hydraulic systems - Google Patents
A kind of more winch hydraulic systems Download PDFInfo
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- CN109114053A CN109114053A CN201811015785.4A CN201811015785A CN109114053A CN 109114053 A CN109114053 A CN 109114053A CN 201811015785 A CN201811015785 A CN 201811015785A CN 109114053 A CN109114053 A CN 109114053A
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- valve
- proportioning
- mouth
- hydraulic
- proportioning valve
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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
- 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
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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
- B66D1/02—Driving gear
- B66D1/08—Driving gear incorporating fluid motors
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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
- F15B13/06—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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/205—Systems with pumps
- F15B2211/2053—Type of pump
- F15B2211/20538—Type of pump constant capacity
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention discloses a kind of more winch hydraulic systems, belong to technical field of hydraulic.The hydraulic system includes main pump group, three proportioning valves, two solenoid valves and three hydraulic motors.Wherein three proportioning valves are three six-way valves, three proportioning valves are arranged in a one-to-one correspondence with three hydraulic motors, the pressure for the hydraulic oil that main pump group exports and flow control then output to corresponding hydraulic motor by proportioning valve, hydraulic motor is for driving winch, two solenoid valves can control the series-parallel of three proportioning valves, by changing the series-parallel relationship between three proportioning valves, can main pump group change be supplied to three hydraulic motors hydraulic oil size and sequencing, realization drives multiple winches according to the priority that multiple winches work, therefore only a set of hydraulic system, which need to be arranged, can be driven multiple winches, save the manufacturing cost of maritime platform, structure is simple and convenient for operation.
Description
Technical field
The present invention relates to technical field of hydraulic, in particular to a kind of more winch hydraulic systems.
Background technique
At present on maritime platform, usually configures more winches and cooperate or work independently.It mainly include platform liter
Winch, pulling winch, tension windlass and auxiliary winch etc. drop, these winches are usually to be driven by hydraulic system.
The pro-jobs rank of winch by having in more winches on maritime platform is higher, the pro-jobs of some winches
Rank is low.The winch high for priority level needs variety of priority driven, therefore, in order to meet the pro-jobs grade of each winch, leads to
Frequently with method be that a set of hydraulic system is set for each winch, corresponding winchman is operated alone in every set hydraulic system
Make, to meet the priority requirements of winch.
In the implementation of the present invention, the inventor finds that the existing technology has at least the following problems:
A set of hydraulic system is set for every winch, will increase the manufacturing cost of maritime platform.Simultaneously when more strands of driving
When turner is made, need successively to control the corresponding hydraulic system of every winch, it is complicated for operation, and it is easy error.
Summary of the invention
The embodiment of the invention provides a kind of more winch hydraulic systems, the priority that can work according to winch carries out winch
Driving, saves platform manufacturing cost, and easy to operate, not easy to make mistakes.The technical solution is as follows:
The present invention provides a kind of more winch hydraulic systems, the hydraulic system includes main pump group, three proportioning valves, two
Solenoid valve and three hydraulic motors, three proportioning valves are three six-way valves, three proportioning valves and three liquid
Pressure motor is arranged in a one-to-one correspondence, and three proportioning valves include the first proportioning valve, the second proportioning valve and third proportioning valve, two institutes
Stating solenoid valve includes the first solenoid valve and second solenoid valve；
The PP1 mouth of first proportioning valve is connected to the output end of the main pump group, the PT1 mouth of first proportioning valve with
The PP2 mouth of second proportioning valve is connected to, and the PT2 mouth of second proportioning valve is connected to the PP3 mouth of the third proportioning valve, and described the
The PT3 mouth of three proportioning valves is connected to fuel tank；
The A mouth of three proportioning valves is connected to the A of corresponding hydraulic motor mouth, and the B mouth of three proportioning valves is equal
It is connected to the B of corresponding hydraulic motor mouth, the T mouth of three proportioning valves is connected to the fuel tank；
The P1 mouth of first proportioning valve is connected to the output end of the main pump group, one end of first solenoid valve and institute
The output end connection of main pump group is stated, the other end of first solenoid valve is connected to one end of the second solenoid valve, and described the
The other end of two solenoid valves is connected to the P3 mouth of the third proportioning valve, the other end of first solenoid valve also respectively with it is described
The PP2 mouth of second proportioning valve is connected to P2 mouthfuls, one end of the second solenoid valve also with the PP3 mouth company of the third proportioning valve
It is logical.
Further, the main pump group includes motor and electric proportional valve, and the electric proportional valve is used to export the motor
Hydraulic oil pressure and flow controlled.
Further, the main pump group further includes safety valve, the output end of the oil inlet of the safety valve and the motor
Connection, the oil outlet of the safety valve are connected to the fuel tank, the oil inlet of the control port of the safety valve and the safety valve
Mouth connection.
Further, the maximum working pressure (MWP) for the winch that the threshold value of the safety valve drives according to three hydraulic motors
The pressure loss with the hydraulic system along journey determines.
Further, the hydraulic system further includes the first two-way pressure compensator and the first shuttle valve, first two-way
The oil inlet of pressure compensator is connected to the output end of the main pump group, the oil outlet of the first two-way pressure compensator and institute
State the P mouth connection of the first proportioning valve, the first control port of the first two-way pressure compensator and the first two-way pressure
The oil inlet of compensator is connected to；
The oil inlet of first shuttle valve is connected to the A mouth of first proportioning valve, the oil outlet of first shuttle valve with
The B mouth of first proportioning valve is connected to, the control port of first shuttle valve and the second of the first two-way pressure compensator
Control port connection.
Further, the hydraulic system further includes the second two-way pressure compensator and the second shuttle valve, second two-way
The oil inlet of pressure compensator is connected to the other end of first solenoid valve, the oil outlet of the second two-way pressure compensator
It is connected to the P mouth of second proportioning valve, the first control port of the second two-way pressure compensator and second two-way
The oil inlet of pressure compensator is connected to；
The oil inlet of second shuttle valve is connected to the A mouth of second proportioning valve, the oil outlet of second shuttle valve with
The B mouth of second proportioning valve is connected to, the control port of second shuttle valve and the second of the second two-way pressure compensator
Control port connection.
Further, the hydraulic system further includes third two-way pressure compensator and third shuttle valve, the third two-way
The oil inlet of pressure compensator is connected to the other end of the second solenoid valve, the oil outlet of the third two-way pressure compensator
It is connected to the P mouth of the third proportioning valve, the first control port of the third two-way pressure compensator and the third two-way
The oil inlet of pressure compensator is connected to；
The oil inlet of the third shuttle valve is connected to the A mouth of the third proportioning valve, the oil outlet of the third shuttle valve with
The B mouth of the third proportioning valve is connected to, the control port of the third shuttle valve and the second of the third two-way pressure compensator
Control port connection.
Further, each hydraulic system further includes three overflows in parallel with three hydraulic motors respectively
The oil inlet of valve, each overflow valve is connected to the A of hydraulic motor mouth, the oil outlet of each overflow valve with it is described
The B mouth of hydraulic motor is connected to, and the first control port of the overflow valve is connected to the oil inlet of the overflow valve, the overflow valve
The second control port be connected to the oil outlet of the overflow valve.
Further, when first solenoid valve obtains electric, first proportioning valve and second proportioning valve are in parallel, when
When the first solenoid valve power loss, first proportioning valve and second proportioning valve series connection；
When the second solenoid valve obtains electric, second proportioning valve and the third proportioning valve are in parallel, when described second
When solenoid valve power loss, second proportioning valve and third proportioning valve series connection.
Further, three hydraulic motors are two-way quantitative motor.
Technical solution provided in an embodiment of the present invention has the benefit that
By the way that a kind of hydraulic system is arranged, which includes main pump group, three proportioning valves, two solenoid valves and three
Hydraulic motor, three proportioning valves are three six-way valves, and three proportioning valves are arranged in a one-to-one correspondence with three hydraulic motors.Proportioning valve
The pressure for the hydraulic oil that main pump group exports and flow control then output to corresponding hydraulic motor, hydraulic motor
For driving winch.Two solenoid valves can control to be connected in series and parallel between three proportioning valves.By change three proportioning valves it
Between series-parallel relationship, i.e., changeable main pump group is supplied to the size and sequencing of the hydraulic oil of three hydraulic motors.For example,
First hydraulic motor drives the first winch, the second hydraulic motor that the second winch, third hydraulic motor is driven to drive third winch, when
When first proportioning valve, the second proportioning valve and third proportioning valve are sequentially connected in series, the hydraulic oil of main pump group output can first flow to the first liquid
Pressure motor drives the first winch, and extra hydraulic oil flow to the second hydraulic motor again and drives the second winch, then extra hydraulic oil
It flow to third hydraulic motor driving third winch again.Therefore the present invention only need to provide a set of hydraulic system and can work according to winch
Priority multiple winches are driven, save the manufacturing cost of maritime platform, structure is simple and convenient for operation.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is a kind of hydraulic schematic diagram of more winch hydraulic systems provided in an embodiment of the present invention.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention
Formula is described in further detail.
The present invention provides a kind of more winch hydraulic systems, Fig. 1 is that a kind of more winches provided in an embodiment of the present invention are hydraulic
The hydraulic schematic diagram of system, as shown in Figure 1, the hydraulic system includes 10, three proportioning valves of main pump group, two solenoid valves and three
Hydraulic motor.Three proportioning valves are three six-way valves, and three proportioning valves are arranged in a one-to-one correspondence with three hydraulic motors, three ratios
Example valve includes the first proportioning valve 21, the second proportioning valve 22 and third proportioning valve 23, and two solenoid valves include 31 He of the first solenoid valve
Second solenoid valve 32, three hydraulic motors include the first hydraulic motor 41, the second hydraulic motor 42 and third hydraulic motor 43.
The PP1 mouth of first proportioning valve 21 is connected to the output end of main pump group 10, and the PT1 mouth of the first proportioning valve 21 compares with second
The PP2 mouth connection of example valve 22, the PT2 mouth of the second proportioning valve 22 are connected to the PP3 of third proportioning valve 23 mouth, third proportioning valve 23
PT3 mouthfuls are connected to fuel tank.
The A mouth of three proportioning valves with the A of corresponding hydraulic motor mouth be connected to, the B mouth of three proportioning valves with it is corresponding
The B mouth of hydraulic motor is connected to, and the T mouth of three proportioning valves is connected to fuel tank.
Specifically, the A1 mouth of the first proportioning valve 21 is connected to the A1 mouth of the first hydraulic motor 41, the B1 of the first proportioning valve 21
Mouth is connected to the B1 mouth of the first hydraulic motor 41.The A2 mouth of second proportioning valve 22 is connected to the A2 mouth of the second hydraulic motor 42, the
The B2 mouth of two proportioning valves 22 is connected to the B2 mouth of the second hydraulic motor 42.The A3 mouth and third hydraulic motor 43 of third proportioning valve 23
The connection of A3 mouth, the B3 mouth of third proportioning valve 23 is connected to the B3 of third hydraulic motor 43 mouth.
The P1 mouth of first proportioning valve 21 is connected to the output end of main pump group 10, one end of the first solenoid valve 31 and main pump group 10
Output end connection, the other end of the first solenoid valve 31 is connected to one end of second solenoid valve 32, second solenoid valve 32 it is another
End be connected to the P3 of third proportioning valve 23 mouth, the other end of the first solenoid valve 31 also respectively with the PP2 mouth of the second proportioning valve 22 and
P2 mouthfuls of connections, one end of second solenoid valve 32 is also connected to the PP3 of third proportioning valve 23 mouth.
For the embodiment of the present invention by the way that a kind of hydraulic system is arranged, which includes main pump group, three proportioning valves, two
Solenoid valve and three hydraulic motors, three proportioning valves are three six-way valves, and three proportioning valves and three hydraulic motors one are a pair of
It should be arranged.Then the pressure for the hydraulic oil that main pump group exports and flow control by proportioning valve to be exported to corresponding hydraulic
Motor, hydraulic motor is for driving winch.Two solenoid valves can control to be connected in series and parallel between three proportioning valves.Pass through change
Series-parallel relationship between three proportioning valves, i.e., changeable main pump group are supplied to size and the elder generation of the hydraulic oil of three hydraulic motors
Sequence afterwards.For example, the first hydraulic motor drives the first winch, the second hydraulic motor that the second winch, third hydraulic motor is driven to drive
Dynamic third winch, when the first proportioning valve, the second proportioning valve and third proportioning valve are sequentially connected in series, the hydraulic oil meeting of main pump group output
It first flowing to the first hydraulic motor and drives the first winch, extra hydraulic oil flow to the second hydraulic motor again and drives the second winch, then
Extra hydraulic oil flow to third hydraulic motor driving third winch again.Therefore the present invention need to only provide a set of hydraulic system
Multiple winches are driven according to the priority that winch works, save the manufacturing cost of maritime platform, structure is simply and just
In operation.
In the present embodiment, three hydraulic motors are two-way quantitative motor.
Further, main pump group 10 includes motor 11 and electric proportional valve (not shown), and electric proportional valve is used for motor
The pressure and flow of the hydraulic oil of 11 outputs are controlled.And electric proportional valve can receive control signal, by electric proportional valve
The pressure and flow for sending the hydraulic oil that control signal can export main pump group 10 are remotely controlled.
Further, main pump group 10 further includes safety valve 12, and the oil inlet of safety valve 12 is connected to the output end of motor 11,
The oil outlet of safety valve 12 is connected to fuel tank, and the control port of safety valve 12 is connected to the oil inlet of safety valve 12.Pass through setting
Safety valve 12, the pressure that can control the hydraulic oil that 10 output end of main pump group is exported are no more than preset value, play protection
The effect of equipment safety operation.
Optionally, the maximum working pressure (MWP) and liquid for the winch that the threshold value of safety valve 12 can drive according to three hydraulic motors
Pressure system is determined along the pressure loss of journey.
Specifically, the maximum working pressure (MWP) and hydraulic system of the first winch 41, the second winch 42 and third winch 43 are along journey
The sum of the pressure loss be safety valve 12 threshold value.
Further, hydraulic system further includes the first two-way pressure compensator 51 and the first shuttle valve 61, the first two-way pressure
The oil inlet of compensator 51 is connected to the output end of main pump group 10, the oil outlet and the first ratio of the first two-way pressure compensator 51
The P1 mouth of valve 21 is connected to, the oil inlet of the first control port of the first two-way pressure compensator 51 and the first two-way pressure compensator 51
Mouth connection.
The oil inlet of first shuttle valve 61 is connected to the A1 mouth of the first proportioning valve 21, the oil outlet of the first shuttle valve 61 and the first ratio
The B1 mouth connection of example valve 21, the control port of the first shuttle valve 61 and the second control port of the first two-way pressure compensator 51 connect
It is logical.By the first two-way pressure compensator of setting and the first shuttle valve, the pressure of the first proportioning valve output end and input terminal can be made
Power is kept constant.
Further, hydraulic system further includes the second two-way pressure compensator 52 and the second shuttle valve 62, the second two-way pressure
The oil inlet of compensator 52 is connected to the other end of the first solenoid valve 31, the oil outlet and second of the second two-way pressure compensator 52
The P2 mouth of proportioning valve 22 is connected to, the first control port of the second two-way pressure compensator 52 and the second two-way pressure compensator 52
Oil inlet connection.
The oil inlet of second shuttle valve 62 is connected to the A2 mouth of the second proportioning valve 22, the oil outlet of the second shuttle valve 62 and the second ratio
The B2 mouth connection of example valve 22, the control port of the second shuttle valve 62 and the second control port of the second two-way pressure compensator 52 connect
It is logical.By the second two-way pressure compensator of setting and the second shuttle valve, the pressure of the second proportioning valve output end and input terminal can be made
Power is kept constant.
Further, hydraulic system further includes third two-way pressure compensator 53 and third shuttle valve 63, third two-way pressure
The oil inlet of compensator 53 is connected to the other end of second solenoid valve 32, the oil outlet and third of third two-way pressure compensator 53
The P3 mouth of proportioning valve 23 is connected to, the first control port and the third two-way pressure compensator 53 of third two-way pressure compensator 53
Oil inlet connection.
The oil inlet of third shuttle valve 63 is connected to the A3 of third proportioning valve 23 mouth, the oil outlet and third ratio of third shuttle valve 63
The B3 mouth connection of example valve, the control port of third shuttle valve 63 are connected to the second control port of third two-way pressure compensator 53.
By setting third two-way pressure compensator and third shuttle valve, the pressure of third proportioning valve output end and input terminal can be made to protect
It holds constant.
Further, each hydraulic system further includes the first overflow valve 71, the second overflow valve 72 and third overflow valve 73.The
The oil inlet of one overflow valve 71 is connected to the A1 mouth of the first hydraulic motor 41, the oil outlet of the first overflow valve 71 and the first hydraulic horse
B1 mouth up to 41 is connected to, and the first control port of the first overflow valve 71 is connected to the oil inlet of the first overflow valve 71, the first overflow
Second control port of valve 71 is connected to the oil outlet of the first overflow valve 71.The oil inlet of second overflow valve 72 and the second hydraulic horse
A2 mouth up to 42 is connected to, and the oil outlet of the second overflow valve 72 is connected to the B2 mouth of the second hydraulic motor 42, the second overflow valve 72
First control port is connected to the oil inlet of the second overflow valve 72, the second control port of the second overflow valve 72 and the second overflow valve
72 oil outlet connection.The oil inlet of third overflow valve 73 is connected to the A3 of third hydraulic motor 43 mouth, third overflow valve 73
Oil outlet is connected to the B3 of third hydraulic motor 43 mouth, the first control port of third overflow valve 73 and third overflow valve 73 into
Hydraulic fluid port connection, the second control port of third overflow valve 73 are connected to the oil inlet of third overflow valve 73.By the way that overflow valve is arranged,
It can prevent hydraulic motor from overloading overflow.
In the present embodiment, when the first solenoid valve 31 it is electric when, the first proportioning valve 21 and the second proportioning valve 22 are in parallel, when the
When one 31 power loss of solenoid valve, the first proportioning valve 21 and the series connection of the second proportioning valve 22.
When second solenoid valve 32 must be electric, the second proportioning valve 22 and third proportioning valve 23 are in parallel, when second solenoid valve 32 is lost
When electric, the second proportioning valve 22 and third proportioning valve 23 are connected.
Assuming that the first hydraulic motor is for driving the first winch, the second hydraulic motor for driving the second winch, third liquid
Pressure motor briefly explains a kind of more winch hydraulic pressure systems provided in an embodiment of the present invention for driving third winch, below in conjunction with Fig. 1
The working principle of system:
One, when the priority of the first winch is higher than the priority of the second winch, the priority of the second winch is twisted higher than third
When the priority of vehicle.
32 power loss of the first solenoid valve 31 and second solenoid valve is controlled, then the first proportioning valve 21, the second proportioning valve 22 and third
Proportioning valve 23 is sequentially connected in series, and the hydraulic oil that main pump group 10 exports first flow to the first proportioning valve 21, and by the A1 of the first proportioning valve 21
To the first hydraulic motor 41, the first hydraulic motor 41 drives the work of the first winch for mouth and B1 mouthfuls of outputs.Remaining hydraulic oil is flow to
Second proportioning valve 22, and exported by the A2 mouth of the second proportioning valve 22 and B2 mouthfuls to the second hydraulic motor 42, the second hydraulic motor 42
The second winch is driven to work again.Remaining hydraulic oil flow to third proportioning valve 23 again, and by the A3 of third proportioning valve 23 mouth and B3
To third hydraulic motor 43, third hydraulic motor 43 drives third winch to work again for mouth output.
Two, when the priority of the first winch is identical as the priority of the second winch, and the priority of the first winch is higher than the
When the priority of three winches.
It controls the first solenoid valve 31 and obtains electric, control 32 power loss of second solenoid valve, then the first proportioning valve 21 and the second proportioning valve
22 is in parallel, third proportioning valve 23 with after parallel connection the first proportioning valve 21 and the second proportioning valve 22 connect.The liquid that main pump group 10 exports
Pressure oil flow to the first proportioning valve 21 and the second proportioning valve 22 simultaneously, and is exported by the A1 mouth of the first proportioning valve 21 and B1 mouthfuls to first
Hydraulic motor 41, the first hydraulic motor 41 drive the work of the first winch, while by the A2 mouth of the second proportioning valve 22 and B2 mouthfuls of outputs
To the second hydraulic motor 42, the second hydraulic motor 42 drives the work of the second winch.After driving the first winch and the second winch to work,
Remaining hydraulic oil flow to third proportioning valve 23 again, and is exported by the A3 of third proportioning valve 23 mouth and B3 mouthfuls to third hydraulic motor
43, third hydraulic motor 43 drives third winch to work again.
Three, when the priority of the first winch is higher than the priority of the second winch, and the priority of the second winch and third strand
When the priority of vehicle is identical.
31 power loss of the first solenoid valve is controlled, control second solenoid valve 32 must be electric, then the second proportioning valve 22 and third proportioning valve
23 is in parallel, the first proportioning valve 21 with after parallel connection the second proportioning valve 22 and third proportioning valve 23 connect.The liquid that main pump group 10 exports
Pressure oil first flow to the first proportioning valve 21, and is exported by the A1 mouth of the first proportioning valve 21 and B1 mouthful to the first hydraulic motor 41, first
Hydraulic motor 41 drives the work of the first winch.Remaining hydraulic oil flow to the second proportioning valve 22 and third proportioning valve 23 simultaneously, by
To the second hydraulic motor 42, the second hydraulic motor 42 drives the work of the second winch for the A2 mouth of second proportioning valve 22 and B2 mouthfuls of outputs,
By the A3 mouth of third proportioning valve 23 and B3 mouthfuls of outputs to third hydraulic motor 43, third hydraulic motor 43 drives third winchman
Make.
Four, when the priority of the first winch, the second winch and third winch is all the same.
It controls the first solenoid valve 31 and second solenoid valve 32 must be electric, then the first proportioning valve 21, the second proportioning valve 22 and third
Proportioning valve 23 is in parallel, and the hydraulic oil that main pump group 10 exports flow to the first proportioning valve 21, the second proportioning valve 22 and third ratio simultaneously
Valve 23, and by the A1 mouth of the first proportioning valve 21 and B1 mouthfuls of outputs to the first hydraulic motor 41, the first hydraulic motor 41 drives first
Winch work.By the A2 mouth of the second proportioning valve 22 and B2 mouthful outputs to the second hydraulic motor 42, the second hydraulic motor 42 drives the
The work of two winches.By the A3 mouth of third proportioning valve 23 and B3 mouthfuls of outputs to third hydraulic motor 43, third hydraulic motor 43 is driven
The work of third winch.
The foregoing is merely a prefered embodiment of the invention, is not intended to limit the invention, all in the spirit and principles in the present invention
Within, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of more winch hydraulic systems, which is characterized in that the hydraulic system includes main pump group, three proportioning valves, two electricity
Magnet valve and three hydraulic motors, three proportioning valves are three six-way valves, three proportioning valves and three it is described hydraulic
Motor is arranged in a one-to-one correspondence, and three proportioning valves include the first proportioning valve, the second proportioning valve and third proportioning valve, described in two
Solenoid valve includes the first solenoid valve and second solenoid valve；
The PP1 mouth of first proportioning valve is connected to the output end of the main pump group, the PT1 mouth and second of first proportioning valve
The PP2 mouth of proportioning valve is connected to, and the PT2 mouth of second proportioning valve is connected to the PP3 mouth of the third proportioning valve, the third ratio
The PT3 mouth of example valve is connected to fuel tank；
The A mouth of three proportioning valves with the A of corresponding hydraulic motor mouth be connected to, the B mouth of three proportioning valves with it is right
The B mouth for the hydraulic motor answered is connected to, and the T mouth of three proportioning valves is connected to the fuel tank；
The P1 mouth of first proportioning valve is connected to the output end of the main pump group, one end of first solenoid valve and the master
The output end of pump group is connected to, and the other end of first solenoid valve is connected to one end of the second solenoid valve, second electricity
The other end of magnet valve is connected to the P3 mouth of the third proportioning valve, and the other end of first solenoid valve is also respectively with described second
The PP2 mouth of proportioning valve is connected to P2 mouthfuls, and one end of the second solenoid valve is also connected to the PP3 mouth of the third proportioning valve.
2. hydraulic system according to claim 1, which is characterized in that the main pump group includes motor and electric proportional valve, institute
The pressure and flow for stating hydraulic oil of the electric proportional valve for exporting to the motor control.
3. hydraulic system according to claim 2, which is characterized in that the main pump group further includes safety valve, the safety
The oil inlet of valve is connected to the output end of the motor, and the oil outlet of the safety valve is connected to the fuel tank, the safety valve
Control port be connected to the oil inlet of the safety valve.
4. hydraulic system according to claim 3, which is characterized in that the threshold value of the safety valve is described hydraulic according to three
The maximum working pressure (MWP) of the winch of motor driving and the hydraulic system are determined along the pressure loss of journey.
5. hydraulic system according to claim 1, which is characterized in that the hydraulic system further includes that the first two-way pressure is mended
Device and the first shuttle valve are repaid, the oil inlet of the first two-way pressure compensator is connected to the output end of the main pump group, and described
The oil outlet of one two-way pressure compensator is connected to the P mouth of first proportioning valve, and the of the first two-way pressure compensator
One control port is connected to the oil inlet of the first two-way pressure compensator；
The oil inlet of first shuttle valve is connected to the A mouth of first proportioning valve, the oil outlet of first shuttle valve with it is described
The B mouth of first proportioning valve is connected to, the second control of the control port of first shuttle valve and the first two-way pressure compensator
Hydraulic fluid port connection.
6. hydraulic system according to claim 1, which is characterized in that the hydraulic system further includes that the second two-way pressure is mended
Device and the second shuttle valve are repaid, the oil inlet of the second two-way pressure compensator is connected to the other end of first solenoid valve, institute
The oil outlet for stating the second two-way pressure compensator is connected to the P mouth of second proportioning valve, the second two-way pressure compensator
The first control port be connected to the oil inlet of the second two-way pressure compensator；
The oil inlet of second shuttle valve is connected to the A mouth of second proportioning valve, the oil outlet of second shuttle valve with it is described
The B mouth of second proportioning valve is connected to, the second control of the control port of second shuttle valve and the second two-way pressure compensator
Hydraulic fluid port connection.
7. hydraulic system according to claim 1, which is characterized in that the hydraulic system further includes that third two-way pressure is mended
Device and third shuttle valve are repaid, the oil inlet of the third two-way pressure compensator is connected to the other end of the second solenoid valve, institute
The oil outlet for stating third two-way pressure compensator is connected to the P mouth of the third proportioning valve, the third two-way pressure compensator
The first control port be connected to the oil inlet of the third two-way pressure compensator；
The oil inlet of the third shuttle valve is connected to the A mouth of the third proportioning valve, the oil outlet of the third shuttle valve with it is described
The B mouth of third proportioning valve is connected to, the second control of the control port of the third shuttle valve and the third two-way pressure compensator
Hydraulic fluid port connection.
8. hydraulic system according to claim 1, which is characterized in that each hydraulic system further include respectively with three
Three overflow valves of the hydraulic motor parallel connection, the oil inlet of each overflow valve are connected to the A of hydraulic motor mouth, often
The oil outlet of a overflow valve is connected to the B of hydraulic motor mouth, and the first control port of the overflow valve is overflow with described
The oil inlet connection of valve is flowed, the second control port of the overflow valve is connected to the oil outlet of the overflow valve.
9. hydraulic system according to claim 1, which is characterized in that when first solenoid valve obtains electric, described first
Proportioning valve and second proportioning valve are in parallel, when the first solenoid valve power loss, first proportioning valve and second ratio
Example valve series connection；
When the second solenoid valve obtains electric, second proportioning valve and the third proportioning valve are in parallel, when second electromagnetism
When valve power loss, second proportioning valve and third proportioning valve series connection.
10. hydraulic system according to claim 1, which is characterized in that three hydraulic motors are two-way quantitative horse
It reaches.
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| CN201811015785.4A CN109114053B (en) | 2018-08-31 | 2018-08-31 | Multi-winch hydraulic system |
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| CN109114053B (en) | 2020-06-09 |
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