CN109139587A - Valve block component and method for valve block component - Google Patents

Valve block component and method for valve block component Download PDF

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Publication number
CN109139587A
CN109139587A CN201810678001.XA CN201810678001A CN109139587A CN 109139587 A CN109139587 A CN 109139587A CN 201810678001 A CN201810678001 A CN 201810678001A CN 109139587 A CN109139587 A CN 109139587A
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CN
China
Prior art keywords
load
valve
volume flow
hydraulic press
slide plate
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.)
Granted
Application number
CN201810678001.XA
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Chinese (zh)
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CN109139587B (en
Inventor
W.维尔纳
B.塞莱斯
S.奥施曼
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Robert Bosch GmbH
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Robert Bosch GmbH
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Publication of CN109139587A publication Critical patent/CN109139587A/en
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Classifications

    • 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
    • F15B11/17—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors using two or more pumps
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/22—Hydraulic or pneumatic drives
    • E02F9/2264—Arrangements or adaptations of elements for hydraulic drives
    • E02F9/2267—Valves or distributors
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/22—Hydraulic or pneumatic drives
    • E02F9/2278—Hydraulic circuits
    • E02F9/2292—Systems with two or more pumps
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/22—Hydraulic or pneumatic drives
    • E02F9/2278—Hydraulic circuits
    • E02F9/2296—Systems with a variable displacement pump
    • 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
    • F15B13/08—Assemblies of units, each for the control of a single servomotor only
    • 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
    • F15B2211/20576—Systems with pumps with multiple pumps
    • 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
    • F15B2211/20576—Systems with pumps with multiple pumps
    • F15B2211/20584—Combinations of pumps with high and low capacity
    • 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
    • F15B2211/255—Flow control functions
    • 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
    • F15B2211/265—Control of multiple pressure sources
    • F15B2211/2654—Control of multiple pressure sources one or more pressure sources having priority
    • 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
    • F15B2211/30—Directional control
    • F15B2211/31—Directional control characterised by the positions of the valve element
    • F15B2211/3105—Neutral or centre positions
    • F15B2211/3111—Neutral or centre positions the pump port being closed in the centre position, e.g. so-called closed centre
    • 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
    • F15B2211/405—Flow control characterised by the type of flow control means or valve
    • F15B2211/40515—Flow control characterised by the type of flow control means or valve with variable throttles or orifices
    • 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
    • F15B2211/41—Flow control characterised by the positions of the valve element
    • F15B2211/413—Flow control characterised by the positions of the valve element the positions being continuously variable, e.g. as realised by proportional 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
    • F15B2211/415—Flow control characterised by the connections of the flow control means in the circuit
    • F15B2211/41509—Flow control characterised by the connections of the flow control means in the circuit being connected to a pressure source and a directional control valve
    • 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
    • F15B2211/415—Flow control characterised by the connections of the flow control means in the circuit
    • F15B2211/41563—Flow control characterised by the connections of the flow control means in the circuit being connected to a pressure source and a return line
    • 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
    • F15B2211/42—Flow control characterised by the type of actuation
    • F15B2211/426—Flow control characterised by the type of actuation electrically or electronically
    • 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
    • F15B2211/60—Circuit components or control therefor
    • F15B2211/63—Electronic controllers
    • F15B2211/6303—Electronic controllers using input signals
    • F15B2211/6306—Electronic controllers using input signals representing a pressure
    • F15B2211/6309—Electronic controllers using input signals representing a pressure the pressure being a pressure source supply pressure
    • 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
    • F15B2211/60—Circuit components or control therefor
    • F15B2211/63—Electronic controllers
    • F15B2211/6303—Electronic controllers using input signals
    • F15B2211/633—Electronic controllers using input signals representing a state of the prime mover, e.g. torque or rotational speed
    • 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
    • F15B2211/60—Circuit components or control therefor
    • F15B2211/63—Electronic controllers
    • F15B2211/6303—Electronic controllers using input signals
    • F15B2211/6346—Electronic controllers using input signals representing a state of input means, e.g. joystick position
    • 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
    • F15B2211/60—Circuit components or control therefor
    • F15B2211/665—Methods of control using electronic components
    • 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
    • F15B2211/60—Circuit components or control therefor
    • F15B2211/665—Methods of control using electronic components
    • F15B2211/6653—Pressure 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
    • F15B2211/60—Circuit components or control therefor
    • F15B2211/665—Methods of control using electronic components
    • F15B2211/6654—Flow rate 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
    • F15B2211/60—Circuit components or control therefor
    • F15B2211/665—Methods of control using electronic components
    • F15B2211/6655—Power control, e.g. combined pressure and flow rate 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
    • F15B2211/60—Circuit components or control therefor
    • F15B2211/665—Methods of control using electronic components
    • F15B2211/6658—Control using different modes, e.g. four-quadrant-operation, working mode and transportation mode
    • 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
    • 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
    • F15B2211/78—Control of multiple output members
    • F15B2211/781—Control of multiple output members one or more output members having priority
    • 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
    • F15B2211/80—Other types of control related to particular problems or conditions
    • F15B2211/85—Control during special operating conditions
    • F15B2211/851—Control during special operating conditions during starting

Abstract

A valve block component with valve block is disclosed, the valve block has at least two main slide plates, and the main slide plate is respectively used to control load.Corresponding main slide plate herein can be electric with two the hydraulic press that adjusts be connected.

Description

Valve block component and method for valve block component
Technical field
Method the present invention relates to valve block component and for controlling the valve block component.
Background technique
It is known from the state of the art moveable engineering machinery --- such as excavator, the engineering machinery are with hydraulic System.In this case, single hydraulic pump is usually set and is fixedly associated with determining load.It is some negative in the load Carrying can also be supplied by two hydraulic pumps.In this case, then usually one hydraulic pump of setting is as main pump, setting is in addition Hydraulic pump as cumulative pump.In this case, it is a disadvantage that passing through the supply of cumulative pump when manipulating multiple loads at the same time It is inefficient in terms of energy.
A kind of valve block is disclosed by 10 2,012 218 428 A1 of DE, which can use in engineering machinery.The valve Block has multiple main slide plates, to be used to control load.Corresponding main slide plate herein can be flat by the first and second pump channel It is supplied to pressure fluid capablely.The fluid separately flowed by pump channel is fluently controlled with first attached or the second auxiliary slide System.
Summary of the invention
In contrast, the present invention is based on the task: a valve block component is created, by the valve block component with high spirit Activity and it is simple in terms of the equipment and technology in a manner of efficiently manipulate load.In addition, the task of the present invention is: it creates one and uses In the method for valve block component, load can be manipulated in a simple manner and efficiently using this method.
Task feature according to claim 1 about the valve block component is resolved, and about the side The task of method feature according to claim 8 is resolved.
Of the invention is advantageously improved the object that scheme is dependent claims.
An arranged according to the present invention valve block component, the valve block component have especially all-ports block (Closed Center valve block).The valve block can have at least two, especially can electricity ground or electricity hydraulically or hydraulically manipulate Main slide plate or main valve slide plate.The main slide plate or main valve slide plate are respectively used to control hydraulic load.It herein can be phase The main slide plate answered distributes at least one pressure interface and at least one working interface.Furthermore two be can be set with adjustable Conveying capacity, especially two hydraulic presses that can be adjusted electricly, the hydraulic press be connected with corresponding pressure interface respectively. Alternatively, the hydraulic press that setting can be adjusted hydraulically is also admissible.
The solution has the advantage that so that variable distribution and for loading individual volume flow Adjusting is possibly realized.This by it is suitable, for the manipulation of hydraulic press that can adjust electricly and for main slide plate manipulation come It realizes.It is also advantageous that: each load can use more than one maximum pump amount to effectively supply, because making hydraulic The cumulative of supply volume flow of machine is possibly realized.If torque required for the driving device of hydraulic press or institute can be driven Needed for the power needed is less than, then can realize that the load of supply volume flow is independent by valve block component according to the present invention Limitation.So that the distribution of supply volume flow freely and in operation flexible, for loading accordingly Variation is possibly realized.
All-ports block valve system (Closed Center System) is related to a hydraulic route and is used in the route The direction valve of control load is closed in their center position.Therefore when use constant-pressure pump (Konstantpumpen) as When pressure medium source, volume flow is typically directed across by-passing valve when direction valve is closed.It is set in open center valve system Hydraulic route is set, wherein direction valve connect in succession, for controlling load is in their center position for oil liquid Stream is unlimited, and the pump transport Stream of constant-pressure pump is allowed to be conducted through all direction valves.If being only provided with a side To valve, then pressure medium volume flow can be directed to tank case in its center, wherein people are known as neutral cycle.
The valve block is preferably by as RCS(MCV) mobile control block uses.
It can be set in other structural scheme of the invention: in one of main slide plate or main slide plate At least part or corresponding main slide plate fluid flow communication between their pressure interface and a hydraulic press connected to it Distribution one especially can electricity ground or hydraulically adjust and/or controllable throttle valve.Thus it further improves for adjusting Save the flexibility of volume flow distribution.Alternatively, or additionally it is also contemplated that: for one of main slide plate or At least part or corresponding main slide plate in main slide plate is between their pressure interface and corresponding other hydraulic press Fluid flow communication distribution one especially can electricity ground or hydraulically adjust and/or controllable throttle valve.Which results in negative Improvement that volume flow between load is distributed, continuing, thus further improves flexibility.It therefore can be by can be in proportion The throttle valve of adjusting further improves variable distribution and the adjusting for loading individual volume flow.It is contemplated that: For cost reasons, instead of one or more throttle valve, be arranged check-valves (R ü ckschlagventil), the check-valves towards The direction for the hydraulic press attached is stopped.Throttle valve can fluid flow communication be parallelly arranged, and on the one hand respectively with point The main slide plate that do not attach is connected, and is on the other hand connected with hydraulic press.
It can be set in other structural scheme of the invention: being in fluid communication between pressure interface and hydraulic press Ground branches out a bypass flow path.The bypass flow path so can be especially can electricly or hydraulically adjust by one Shut-off valve (Cut-Ventil) that is section and/or being steered can be connected with tank case or low-pressure side, and pass through the cut-off Valve can be throttled.This has the advantage that can use the shut-off valve implements desired load dependency or load sense Intellectual (Lastf ü hligkeit), as this is set in open center valve system (Open Center System). Because the shut-off valve especially can be adjusted and/or be manipulated electricly, the unlatching section of the shut-off valve can be flexible Ground determines.The unlatching section of the shut-off valve is smaller, then hydraulic system more stiff (steifer) and loading sense Intellectual is with regard to smaller.If such as main slide plate be used to control monobucket formula excavator bucket, and bucket example in operation A pipeline is such as encountered, then the speed of bucket can significantly become smaller when there is big Load-aware.Excavator driving person can lead to The smaller speed for crossing bucket is recognized: bucket has encountered barrier, therefore he can be loaded with this " perceiving ".It is smaller when having Load-aware when --- this means that when the unlatching section of the shut-off valve is smaller, the bucket when for example encountering pipeline The speed of movement can not change or not substantially change or only tinily change, and thus excavator driving person may not examine Feel such case.So for excavator driving person, there are small Load-awares as a result,.It therefore can be by especially may be used The shut-off valve for adjusting or manipulating electricly is realized as in open center valve system in a manner of simple on equipment and technology Desired load dependency.
In another structural scheme of the invention, it can divide fluid flow communication between pressure interface and other hydraulic press Pay a bypass flow path.So the bypass flow path can by it is one other, especially can adjust electricly and/or The shut-off valve of manipulation is connected with tank case, and can be throttled by the shut-off valve.It is possible thereby to further improve neutral Opening valve behavior.
It can preferably be at least one of main slide plate or main slide plate or a part in main slide plate or all Main slide plate a supply interface and/or other working interface is distributed except pressure interface and working interface.So pass through institute Stating supply interface such as pressure medium can flow out from load.It is contemplated that by other working interface: setting double cropping The cylinder used as load.It is arranged preferably in a part in main slide plate or main slide plate or in all main slide plates: They can constantly be conditioned.The manipulation angle of main slide plate or each main slide plate so can be set to adjustment element.
In a preferred structural scheme, main slide plate can be taken to an especially spring middle position placed in the middle, at this In middle position, the interface being attached in main slide plate is disconnected from each other.By middle position, when by main slide plate towards first connect When position is mobile, pressure interface is connected with the first working interface, and feeds interface and be connected with the second working interface.As general When main slide plate is mobile towards the direction of the second on-position by middle position --- wherein position is connected with first in the direction It sets on the contrary, so pressure interface can be connected with the second working interface, and the first working interface can be with supply interface phase Connection.In order to adjust main slide plate, it is provided with valve slide plate control device or an actuator.Adjusting direction for first herein can be with Using the first actuator, the second actuator can be used for the second adjusting direction.In addition main slide plate can be correspondingly by structure It makes.The main slide plate for being associated with two working interfaces, a pressure interface and a supply interface can be the part of 4/3- direction valve. Valve sub-component so can be set into one or two throttle valves that main slide plate can be associated with.
In other structural scheme of the invention, the shut-off valve or corresponding shut-off valve can be controlled constantly It closes or control is opened, neatly to adjust Load-aware.The shut-off valve or corresponding shut-off valve are in initial bit Set preferably open, hydraulic press is connected with tank case as a result,.The valve slide plate of shut-off valve can be by towards the side of initial position To the spring force for applying valve spring.Oppositely, then can make by valve slide plate control device or by actuator described The direction of the valve slide plate of shut-off valve towards closed position is mobile.
In other structural scheme of the invention, one of hydraulic press is used as main pump, and correspondingly another Outer hydraulic press is used as cumulative pump.The hydraulic press is preferably volume flow control or pressure control.Corresponding Hydraulic press preferably downstream setting pressure sensor.If one or two hydraulic presses are pressure control, excellent Selection of land is additionally provided in a swing angle sensor for such hydraulic press.It is also contemplated that: in addition to described two One or more other hydraulic press is used except a hydraulic press.Corresponding hydraulic press so can be conveyed preferably from tank case Pressure medium is to the main slide plate attached.
The one control electronic component of setting in other structural scheme of the invention.The control electronic component can have one Matching module or the first module.So for a load or for corresponding in the matching module perhaps the first module Load or for main slide plate or for corresponding main slide plate, especially by an input unit or corresponding input dress Predetermined value can be inputted or can supply by setting.The predetermined value or corresponding predetermined value can so be changed by matching module Become matched or corresponding matched predetermined value.In other words, in matching module, for each load can with Match, an especially smooth predetermined value.Control stick is for example arranged to input unit, and wherein joystick signal so may be used as pre- Definite value.The predetermined value for example by dullness or lasting raised indicatrix and/or passes through the function of time --- for example PT1 or PT2 --- it is converted into matched predetermined value.Advantageously make Signal Regulation by the matching of predetermined value (Signalkonditionierung) it is possibly realized.It is preferably set up a control stick for main slide plate.If be provided with multiple Main slide plate, then corresponding control stick can be arranged for a part in main slide plate or for corresponding main slide plate.
One control electronic component or the control electronic component can advantageously have a predetermined module or second Module.Using the predetermined module or the second module so can by the predetermined value being especially matched or it is corresponding especially The predetermined amount being matched is converted into the volume flow predetermined amount for load, or is converted into corresponding for what is loaded accordingly Volume flow predetermined amount.Furthermore can use predetermined module preferably by the predetermined value especially matched or it is corresponding especially It is that the predetermined value matched is converted into especially desired Load-aware information, is either converted into for load or is used for The especially desired corresponding Load-aware information loaded accordingly.It alternatively, or additionally can use predetermined module Be arranged: by the predetermined value especially matched or the accordingly predetermined value that especially matched be converted into it is especially desired, Or it is converted into especially desired maximum pressure respectively.With the Load-aware information, exist for the cut-off Thus the throttle valve predetermined amount of valve so can advantageously adjust dynamic head (Staudruck), can basis using the dynamic head The supply load of open center valve principle.Volume flow predetermined amount so can prespecified load speed.Using for corresponding Load maximum pressure can advantageously by the height-regulating of hydraulic press (Hochregeln) depend on predetermined value or manipulation signal It is converted on ground.
Volume flow predetermined amount for the load or for respective load can so be depended on by characteristic field The predetermined value matched is taken out about corresponding load.It alternatively, or additionally can be for load or corresponding negative Characteristic field is arranged in Load-aware information carry, corresponding, and the Load-aware information was matched with (corresponding) that loads Predetermined value based on.Furthermore can alternatively, or additionally take out for for load or for accordingly load , the characteristic field of (corresponding) maximum pressure, the characteristic field similarly with about load or about corresponding load , based on the predetermined value matched.Therefore predetermined value can be carried out in a manner of foolproof by means of the characteristic field Conversion.
In other structural scheme of the invention, the control electronic component or a control electronic component be can have One manipulation module or third module.The manipulation module or third module so can based on predetermined module, converted Predetermined amount generates especially electric perhaps hydraulic manipulation signal or especially electric or hydraulic multiple manipulation signals. Manipulation signal can be set into: the overall volume flow predetermined amount for hydraulic press or the pump volume flow for main pump Predetermined amount and the pump volume flow predetermined amount for cumulative pump and/or total throttle valve predetermined amount for the shut-off valve and/ Or control amount or corresponding control amount for main slide plate and/or for a part in throttle valve or throttle valve or Person is used for the control amount or corresponding control amount of corresponding throttle valve.In other words, third module can will be based on load Input value integrates, and generates corresponding manipulation signal.Furthermore it is contemplated that load or load in manipulation module A part perhaps all loads load pressure for generating manipulation signal or multiple manipulation signals, to make Improved Load-aware is possibly realized.The load pressure is preferably predetermined and for example based on empirical value.Substitution Ground additionally can be set: detect load pressure by one or more sensor.Therefore can by means of With the calculated value of predetermined value and/or the calculated value of the maximum pressure for loading accordingly crossed and/or for respective load The calculated value of volume flow predetermined amount and/or Load-aware information for loading accordingly and/or for loading accordingly Load pressure calculate for main slide plate valve slide plate manipulation control amount and/or at least one hydraulic press pump manipulate Control amount and/or for shut-off valve valve slide plate manipulate control amount.
In other words, a control device and software are set, and to handle rated value or driver's expectation, and calculating must The control signal of palpus.
It is contemplated that in other structural scheme of the invention: turning in manipulation module in view of hydraulic press Speed, the revolving speed is for generating manipulation signal.Thus, it is possible to realize more accurate generation in a manner of simple on equipment and technology.It is hydraulic The revolving speed of machine can be used as example based on empirical value, predetermined parameter and realize, or as example passing through one Or the measured value that multiple sensors detect is realized.It alternatively, or additionally, can be in manipulation module in view of hydraulic The torque of a hydraulic press in machine drives a driving unit (such as motor or bavin in the driving unit of hydraulic press Oil turbine) torque so that more accurately generate manipulation signal be possibly realized.
In other words, it is delivered to manipulation module for manipulating the data of each load, the manipulation module can be according to pre- Arithmetic operation as defined in elder generation manipulates the valve of each load, shut-off valve and pump control device.
It is realized or preferably as the control of feedback in " feed-forward mode " (Feed by the manipulation of manipulation signal Forward Modus) in realize.Which results in manipulations extremely simple on an equipment and technology.
Module for controlling electronic component can simply and cost-effectively be related to software module, the software mould Block is especially implemented on the control electronic component.
Applicant retains the rights to independence that oneself is proposed for the electronic component according to aforementioned in terms of one or more Benefit requires.
A method for controlling the valve block component according to aforementioned in terms of one or more can be set according to the present invention. It is being can transport herein by hydraulic press, for the supply volume flow of load, individually or changeably have by manipulation can The hydraulic press of the conveying capacity of adjusting, the hydraulic press that can especially adjust electricly, and can especially be adjusted electricly by manipulation Main slide plate is associated with the load of connection.It is contemplated that herein: furthermore by controlling at least one shut-off valve to support It states and attaches.
The solution has the advantage that so that according to driver requested and available power, efficiently Limitation or the passage of supply volume flow of hydraulic press be possibly realized.It furthermore can be thus when more than available power Or when available torque (for driving the hydraulic press), supply volume flow is not only reduced, but also be reduced to described The inflow cross section of load.
In the other structural scheme of this method, for individually matching for load, transportable supply volume flow Belonging to can realize additionally by the manipulation throttle valve that can especially adjust electricly.Therefore, variable to attach and right It can be by the hydraulic press that adjusting throttle valve in proportion with can be electric be adjusted come clever in loading adjusting for individual volume flow It realizes livingly and changeably.A part of volume flow distribution so can especially be adjusted electricly additionally by described Main slide plate embody.
Using according to the method for the present invention so that according to it is foregoing aspects of one or more aspect come control valve-with And pump assembly is possibly realized, wherein being accomplished that: hydraulic press can extremely efficiently and well to attaching for loading accordingly Control.
It can especially be assigned by control electronic component for corresponding load in a preferred embodiment of the invention Priority.Therefore supply volume flow can be realized to attaching for load depending on the priority.It can be considered to It is: each load is separately provided adjustable or can predetermined priority.Therefore it for example can be set: preferential Grade or priority are higher, reduce the supply amount of the load then more lately.
If being provided at least two loads, the first load can have highest, especially the first priority simultaneously And second load can have lesser, especially the second priority.It is contemplated that: the priority for other load Correspondingly unceasingly it is classified.If such as at least three load of setting, the first load can have it is highest, especially the One priority, second load can have lesser, especially the second priority and third load can have it is smaller, outstanding It is third priority.
Preferably, the corresponding volume flow predetermined amount for loading accordingly can be prespecified --- especially by One control stick.Corresponding volume flow predetermined amount so can especially by the corresponding limitation of control electronic component distribution because Number is so reduced corresponding volume flow in a predetermined manner when needed by the restriction factor and predefines value.Phase Therefore the load answered can be assigned corresponding restriction factor.It can will be so used in preferred structural scheme of the invention Loading accordingly, corresponding, especially desired volume flow predetermined amount is multiplied by its restriction factor attached, so as to then It obtains for volume flow predetermined amount load accordingly, actual.Corresponding restriction factor be preferably located between 0 and 1 or Person is 0 or 1.In other words, corresponding restriction factor can region between 0 and 1, wherein boundary 0 and 1 belongs to the model It encloses.If the restriction factor for load is greater than 0 and less than 1, it is single that the restriction factor can depend on driving Member, the power available for hydraulic press and/or depending on power required for other load and/or depending on attaching It is calculated in its smallest power.
It can be for loading accordingly or at least for a part of load in other structural scheme of the invention One the smallest volume flow predetermined amount is set, wherein the volume flow predetermined amount is same or different.In other words, for every A load or a part of of load can determine minimum, be maintained for as long as the minimum is --- possible ---, with this It can keep for example running using the minimum of the engineering machinery of the method.
Can preferably be controller be arranged a mode perhaps multiple and different mode in one mode or more In a different mode be provided with it is predetermined, for load, be especially depending upon it priority restriction factor.Cause This can be in a mode or model of the setting for a type of the restriction factor of load in corresponding mode.It therefore can be with Such as reach by translative mode attaching for supply volume flow for loading accordingly in a manner of simple and is flexible Variation.In other words, it is possible to: different accumulation strategies is applied by suitable software function.
One or more can be set to mode (Modus or Modi) in mode mentioned below:
In a mode, especially first mode, restriction factor can be identical or 1.If restriction factor is 1, can With for loading setting volume flow predetermined amount accordingly, the volume flow predetermined amount can correspond to actual volume flow Predetermined amount.
In an other especially second mode, for the limit with highest, especially the first priority load Factor processed is greater than the restriction factor for the load with lesser priority.Therefore it ensure that: for highest preferential The load of grade is provided with actual volume flow predetermined amount, and the volume flow predetermined amount is at least highest or corresponds to Desired volume flow predetermined amount, if restriction factor is 1.The volume flow of load with lesser priority so can be with Be lowered in the following manner: restriction factor is less than the restriction factor of the load with highest priority.With it is lesser, Especially in the load of third priority, restriction factor can be obtained by following difference: the difference can be provided for hydraulic Difference between power required for the power of machine and other load, wherein the difference is placed in a ratio, especially In one ratio, which is and the ratio with power needed for lesser, especially third priority load.Preferably, In having intermediate, especially the second priority load, the restriction factor is similarly 1 and/or corresponds to most The restriction factor of high, especially the first priority load.
For the load with the smallest especially third priority, then the ratio, especially first can be set Ratio is as restriction factor.
It is one other, especially can be set in the third mode: it is intermediate, especially the second priority negative having In load, the restriction factor is 0.Therefore it is so for example limited for being arranged with highest, especially the first priority load Factor processed is 1, and for the ratio, the especially first ratio is arranged with the smallest, especially third priority load Example is used as restriction factor.
It is another preferably, especially in fourth mode, for highest, especially the first priority load Restriction factor can be 1, or at least more than the restriction factor for the load with lesser priority.It is smaller having , in the load of especially third priority, restriction factor can so be obtained by especially the second ratio, second ratio Be for lesser, especially third priority load, prespecified the smallest power with it is described have it is smaller , power required for the load of especially third priority.It is other, have it is similarly lesser, especially second excellent In the load of first grade, the restriction factor so can have highest from by the available power of hydraulic press and by described , power required for the load of especially the first priority and by the load with lesser especially third priority The difference of prespecified the smallest power obtain.The difference can be so placed in a ratio, especially third ratio, The ratio is and the ratio with power required for lesser, especially the second priority load.
In another, especially the 5th mode, for the limit with highest, especially the first priority load Factor processed so can be 1, or at least more than the restriction factor for the load with another lesser priority.It is right In it is described with it is lesser, especially second and the load of third priority can be set: it is described load it is having the same Restriction factor, the restriction factor so can by the ratio of difference and summation, especially the 4th composition of proportions.The difference herein may be used To be by power workable for hydraulic press and the difference with power required for highest, especially the first priority load Value.The summation so can be by constituting with lesser power especially with second and the load of third priority.
It is one other, can be set in especially the 6th mode: it is highest, especially first preferential for having The restriction factor of the load of grade is born by the power that can be used by hydraulic press with highest, especially the first priority Ratio, especially the 5th ratio of power required for carrying are formed.For with it is lesser, especially second or third it is preferential The load of grade, restriction factor so can be 0.Therefore it can be advantageously provided in the 6th mode: there is highest priority Load supply amount only be just lowered in a case where: all other loads are fully lowered.This is especially Ground is in some special optional equipments --- it is for example advantageous in magnetic bracket (Magnethalter), the optional equipment It is required that higher safety.
In other structural scheme of the invention, especially as other mode, can be set: cumulative pump exists It is just used: can be made a reservation for when following situations by the volume flow that the supply volume flow that main pump conveys no longer is enough to cover load Amount.Outside this has the advantage that main pump can be made full use of as fully as possible before cumulative pump is by use and is complete It puts (ausgeschwenkt), because showing that completely there is best efficiency by the hydraulic press of outer pendulum.In other words, as long as Main pump is completely made full use of not yet, then just abandoning the additional amount of cumulative pump as far as possible, is directed to so-called hidden The accumulation (implizierte Summierung) contained.
In a preferred embodiment --- especially in other mode, if available power, especially The power for being driving unit is inadequate for the pump volume flow predetermined amount of main pump and cumulative pump for converting, then can be with Be provided that: main pump so conveys maximum supply volume flow or at least substantially conveys maximally possible supply volume Flow, and especially put completely or outside at least substantially complete herein.This is favourable, because main pump is in completely outer pendulum It is full blast under state.The cumulative pump can so convey less supply volume flow or not convey supply volume Flow.Therefore at least extremely effective rate in main pump place of working.
In another structural scheme of the invention, especially as other mode, can pre-set be: at least two A load is used as travelling axis, and therefore for example respectively drives the crawler belt of caterpillar or crawler-mounted excavator.Furthermore Another load can be set or multiple other loads can be set.The hydraulic press so can be used in this case One of them is used to supply traveling axis, and is used to supply load or other load using other hydraulic press.It shows Be: this is extremely effective rate, especially when other load is used for the function below in Work machine: the function It is not used for driving Work machine.So be contemplated that in another mode: corresponding traveling axis passes through corresponding hydraulic Machine supplies, wherein at least one hydraulic press of the hydraulic press so be used to supply other load or other load At least part.Other hydraulic press can so be similarly used for supplying the other portion of other load when needed Point.Therefore two traveling axis neatly extremely can be used for using a hydraulic press when needed, or using corresponding hydraulic Machine for travelling axis accordingly.When engineering machinery straight-line travelling, being used for two traveling axis using a hydraulic press is extremely to have Benefit.
The load or other being supported on except the traveling axis can be: the especially cantilever of excavator (Ausleger), bucket (L ffel), swing mechanism (Drehwerk) and shank (Stiel).
Can be set in another mode: one of described hydraulic press can be used for uniquely loading, this is negative It carries so more particularly, to optional equipment.Other hydraulic press so can be set for other load.This is favourable, because For that can be required of in some special optional equipments: retaining hydraulic press to this when activating the optional equipment.Work as institute State optional equipment it needs to be determined that stable stress level when, this can especially be advantageous for the reason of energy.
The mode can be automatically selected and/or be activated by operator.
Detailed description of the invention
A preferred embodiment of the present invention is further illustrated below by schematical diagram.It shows that
Fig. 1 shows the valve block component according to an embodiment in hydraulic line map,
Fig. 2 shows the control electronic component of the valve block component of Fig. 1 with schematical diagram,
Fig. 3 shows the mode of load different, for control figure 1 with schematical diagram,
Fig. 4 shows simplified indicatrix, for showing the other mode for being used for the valve block component of Fig. 1,
A table is shown respectively in Figures 5 and 6, for simplifiedly showing the corresponding module of the valve block component for Fig. 1.
Specific embodiment
The valve block component 1 according to an embodiment is shown according to Fig. 1.The valve block component has first in the form of hydraulic pump Hydraulic press, first hydraulic press are used as main pump 2.Furthermore it is provided with the second hydraulic press in the form of hydraulic pump, this second Hydraulic press is used as cumulative pump 4.Pressure sensor 6 has been separately connected in the outlet side of corresponding pump 2 and 4.Furthermore it is arranged Three main slide plates 8,10,12.These three main slide plate fluid flow communications are parallelly arranged, and are connected respectively with two pumps 2 and 4 It connects.Corresponding main slide plate 8 to 12 is respectively provided with pressure interface P herein.It is set respectively between corresponding pressure interface P and main pump 2 Adjustable throttle valve 14,16 and 18 especially electricly is set.In addition, same between corresponding pressure interface P and cumulative pump 4 Sample it is respectively provided with adjustable throttle valve 20,22,24 especially electricly.The throttle valve 14,16 and 18 therefore fluid Communicatively be connected in parallel on main pump 2, and the throttle valve 20,22 and 24 fluid flow communications be connected in parallel to it is described On cumulative pump 4.
In addition, being provided with supply interface T for corresponding main slide plate 8 to 12.Supply interface passes through supply pipeline 26 respectively It is connected with tank case 28.In addition, being provided with the first working interface A and the second working interface for corresponding main slide plate 8 to 12 B.Load 30,32 and 34 is connected respectively on corresponding working interface A, B, and the load is respectively configured to unilateral work The cylinder with differential effect (Differenzialzylinder) of stopper rod.Therefore, corresponding main slide plate 8 to 12 is accordingly associated with it for controlling Load 30 to 34.
Corresponding main slide plate 8 to 12 is at their the initial position a in spring pair.From its initial position a, accordingly Main slide plate 8 to 12 can towards the direction of first switch position b pass through actuator 36,38 manipulate.In this case, pressure Interface P is connected with working interface A and working interface B is connect with supply interface T-phase.In addition, corresponding main slide plate 8 to 12 can With with being in reverse to position of the switch b mobile from the direction of their initial position a towards position of the switch c.In this case, Corresponding pressure interface P is connected with the second working interface B and the first working interface A is connect with supply interface T-phase.Main slide plate 8 to 12 can constantly be adjusted respectively.
First bypass flow path 40 fluid flow communication branch between throttle valve 14,16 and 18 and main pump 2, described One bypass flow path is connected with tank case 28.Be arranged in bypass flow path constantly, especially electricly adjustable section Only valve 42.The valve slide plate of shut-off valve 42 has been loaded the spring force of valve spring towards its open position herein.Towards close stance It sets, the valve slide plate of the shut-off valve 42 can be loaded by an actuator with power, and the actuator can especially be grasped electricly Control.Therefore it can use the shut-off valve 42 and control pressure medium connection between the outlet side and tank case 28 of main pump 2.
In addition, a second other bypass flow path 44 branch between throttle valve 20,22 and 24 and cumulative pump 4. In second bypass path, similarly arrange a shut-off valve 46, so as to control cumulative pump 4 outlet side and tank case 28 it Between pressure medium connection.The shut-off valve 46 is constructed corresponding to 42 ground of shut-off valve in this case.
In addition, schematically showing controller or control electronic component 48 in Fig. 1.The control electronic component is used for Control main slide plate 8 to 12, throttle valve 14 to 24, shut-off valve 42 and 46 and pump 2,4.The control electronic component 48 is in subsequent figure Further illustrated in 2.
The control electronic component 48 of the valve block component 1 of Fig. 1 is shown according to fig. 2.30 are loaded accordingly herein in order to control To 34, sees Fig. 1, be respectively provided with control stick 50,52 and 54, the control stick is connected with control electronic component 48 respectively. Corresponding control stick 50 to 54 is connected with block 56 respectively herein, they are a part of matching module or the first module 58. Wherein, it is matched accordingly, by the prespecified predetermined value a1 to a3 of control stick 50 to 54.Then it is exported by corresponding block 56 Accordingly, the predetermined value b1 to b3 matched.The matching is by means of indicatrix and by means of the function of time, such as PT1 Or PT2 is realized.
The predetermined value b1 to b3 matched accordingly is fed into the corresponding block 60 of control electronic component 48.60 shape of block At predetermined module or the second module 62.Then the predetermined value b1 to b3 utilizes a feature in their corresponding block 60 Curve is transformed into maximum pressure p_max_1 to p_max_3.Corresponding maximum pressure p _ max_i can be linearly using corresponding The increased predetermined value bi being matched be increased to determining numerical value, maximum pressure p _ max_i is kept not since the numerical value Become, even if the predetermined value b1 being matched accordingly continues to increase to b3.Therefore, start in the corresponding deflection of control stick 50 to 54 When, the corresponding predetermined amount of maximum pressure p _ max_i is constantly increased with deflection together.From corresponding control stick 50 to The manipulation route of 54 determination rises, then corresponding maximum pressure p_max_i is kept constant.In addition, in the second module 62, phase The predetermined value b1 to b3 being matched answered is converted to 30 to 34(see Fig. 1 for loading accordingly), corresponding volume flow Predetermined amount Q1 to Q3.They are similarly matched by means of an indicatrix.In this case, corresponding volume flow is pre- Then quantitative Q1 to Q3 can be increased with the predetermined value b1 to b3 being matched accordingly.In addition, in the corresponding of the second module 62 A desired Load-aware information A1 to A3 is produced in block 60.Corresponding Load-aware information A1 to A3 is according to a feature Curve is similarly respectively depending on the predetermined value b1 to b3 being matched.Predetermined value b1 to b3 is bigger, corresponding Load-aware letter A1 to A3 is ceased with regard to smaller.
According to fig. 2, the predetermined value b1 to b3 that is matched, volume flow predetermined amount Q1 to Q3, Load-aware information A1 are extremely A3 and maximum pressure p_max_1 to p_max_3 is entered in the block 64 of control electronic component 48.Described piece forms manipulation Module or third module 66.In addition, input is detected by the sensor 6 of Fig. 1 in block 64 pump pressure p_Pmp_1 and p_Pmp2.In addition, the revolving speed n_engine(of motor of pump 2,4 motor in block 64 in input driving Fig. 1 is not shown) with And the torque M_engine of the motor.It is generated by the calculated value and pressure and revolving speed and torque that are inputted for the phase in Fig. 1 The controlling value or manipulation signal a1, a2 and a3 for the actuator 36 answered, and b1, b2 and b3 for corresponding actuator 38. Furthermore the controlling value or control signal c1, c2 and c3 of the throttle valve 14,16 and 18 for Fig. 1 are produced, and for Fig. 1's D1, d2 and d3 of throttle valve 20,22 and 24.Furthermore produce the corresponding shut-off valve 42 and 46 for Fig. 1, as corresponding Throttle valve predetermined amount control signal x_cut_1 and x_cut_2.Furthermore the pump of the corresponding pump 2,4 for Fig. 1 is produced Volume flow predetermined amount Vg1 and Vg2.
It is illustrated different modes (situation) according to Fig. 3, the mode can be implemented by control electronic component 48.Herein It is assigned with priority P rio0, Prio1, Prio2 respectively for the corresponding load 30 to 34 of Fig. 1.Load 34 has highest herein First priority P rio2.Load 32 has lesser, the second priority P rio1, and loads 30 with smaller, third is excellent First grade Prio0.In different patterns for being loaded accordingly provided with the smallest volume flow predetermined amount (PDemMin).This Outside, restriction factor is assigned with for corresponding load 30 to 34.Here, restriction factor fac_p2 is provided with for load 34, for Load 32 is provided with restriction factor fac_p1, and is provided with restriction factor fac_p0 for load 30.In addition, for corresponding The prespecified respectively volume flow predetermined amount Q1 to Q3(of load 30 to 34 is equally shown in Fig. 2).So it is related in this case Desired volume flow predetermined amount Q1 to Q3(Q_demPrio (i)).In different patterns, according to Fig. 3 so it is adjustable not Same restriction factor, the restriction factor is then multiplied by corresponding desired volume flow predetermined amount, wherein being then used for The actual volume flow predetermined amount (Q_Prio(i) of corresponding load 30,32,34), this can be showed by formula below Out:,
Wherein i represents corresponding load, and can use 0.1 or 2 for load 30,32 or 34.Therefore, it follows that One rated capacity generated, the rated capacity by driver requested rated capacity multiplied by corresponding restriction factor by being obtained originally.
According to Fig. 3, the setting in a mode (situation 1): the restriction factor is respectively 1, as 30 to 34 points of load If not being assigned with desired volume flow predetermined amount --- this is if possible.
In another mode (situation 2), the restriction factor for loading 32 and 34 is 1, is assigned with this they described Desired volume flow predetermined amount.Restriction factor less than 1 is provided with for load 30, which can also be by following public affairs Formula obtains:,
Wherein P_avail represents 2,4 available power of pump, and P_Prio1 represents power required for load 32, P_Prio2 It represents power required for load 34 and P_Prio0 represents the power that load 30 needs.Therefore, in the second module, for 30 small portions being provided with for the load, desired volume flow predetermined amount of load, with this, restriction factor is small In 1.Volume flow predetermined amount for loading 30 is preferably more than the smallest volume flow predetermined amount (PDenMin) herein.
In another mode, be arranged differently than with mode (situation 2): the restriction factor for the second load 32 is 0, with This only has the first load 30 and third load 34 to be used.
In another mode (situation 3), being provided with restriction factor for load 34 is 1.For loading 30 restriction factor Less than 1, and can be obtained by formula below:,
Wherein P_Prio0Min is the smallest volume flow predetermined amount for 30 setting of load, and P_Prio0 is for bearing Carry 30 desired volume flow predetermined amount.Restriction factor for loading 32 is obtained less than 1 and so by formula below:。
It is 1 that the restriction factor for loading 34 can be set in another mode (situation 4).Load 30 and 32 can have Identical restriction factor and/or a restriction factor less than 1, the restriction factor can be obtained by formula below:
。
Volume flow predetermined amount for loading 30 can so correspond to the smallest volume flow predetermined amount (PDemMin), and Volume flow predetermined amount for loading 32 can be located on the smallest volume flow predetermined amount (PDemMin).
In another mode (situation 5), the restriction factor for loading 30 and 32 is 0, and the limit for third load Factor processed can be obtained less than 1 by following formula:
。
When all other loads reduce completely, the supply amount of the load 34 with highest priority is therefore Just reduce.Volume flow predetermined amount for loading 30,32 accordingly can be located at the smallest volume flow predetermined amount (PDemMin) under.
Four charts are shown in FIG. 4.Here it is shown that old solution, two, right side shows root in two, left side According to solution of the invention.The chart on top shows on their ordinate available for the pump 2,4 of Fig. 1 respectively Power (P_wr) and time (time) is shown on their abscissa.In the chart of lower part respectively on the vertical scale It shows volume flow Q and shows time (time) on the horizontal scale.Pump according to the chart of left upper portion, for Fig. 1 2,4, available power (P_wr_avail) should linearly rise first, and then occupy a constant value. Required power (P_wr_demand) is initially positioned under available power, and then should be in the time of continuation The available power is corresponded in curve.Therefore, required power is limited by available power.Therefore This is resulted according in the chart of Fig. 4 left lower: the required volume flow (Q_demHauptPmp) of main pump 2 and tired Adding the required volume flow (Q_demSumPmp) of pump 4 cannot be provided with, because of available power (P_wr_ Avail) not enough.So far it is such that described two pumps 2,4 backswing (zur ü in this type of situation Ckschwenken).Main pump 2 all conveys smaller volume flow (Q_limHauptPmp, Q_ as cumulative pump 4 respectively herein It limSumPmp), and is not in particular fully outer put.So according to the present invention, it should exist according in Fig. 4 right side on The chart in portion is about power, corresponding initial situation.It in contrast to this, can according to the chart use on the right side of the middle and lower part Fig. 4 For the power used, to use main pump 2 completely, the volume flow (Q_ of requirement can be conveyed by main pump 2 with this DemHauptPmp).In contrast to this, pump 4 is added up so compared to solution so far significantly further backswing, and Convey correspondingly smaller volume flow.This is very favorable, because in the state that pump is put outside or in completely outer pendulum Be in state it is obvious more efficiently.Therefore at least one pump is efficiently used according to new solution, and in old solution In scheme, two pumps are all used inefficiently.
Two other modes are shown according to Fig. 5.In a mode " traveling un-activation ", main pump 2(Pmp1) by with Track drive (crawler belt in left side) in the left side of caterpillar, and cumulative pump 4(Pmp2) it is used for the crawler belt drive on right side Dynamic (crawler belt on right side).In addition, main pump 2 is used for the shank of swing mechanism and engineering machinery, the engineering machinery is used The valve block component 1.Furthermore cumulative pump is used for cantilever and is used for bucket.In contrast, (the row in another mode Sail activation) it is provided with: cumulative pump 4 is arranged for the track drive of two sides, and main pump 2 is so used for cantilever, bucket, revolution Mechanism and shank.
Two other modes are shown according to Fig. 6.In other mode (optional equipment un-activation), main pump again by with Track drive in left side, and cumulative pump is used for the track drive on right side.Furthermore main pump 2 be arranged for swing mechanism and Shank, and cumulative pump is used for cantilever and bucket.The use of optional equipment is not set in this mode.If used now Optional equipment, then being switched in another mode (optional equipment activation).In this case, main pump 2 is only used for adding Equipment, and cumulative pump 4 is arranged for other load.
A valve block component with valve block is disclosed, the valve block has at least two main slide plates, the main slide plate difference It is loaded for controlling.Corresponding main slide plate is connected with two especially electric adjustable hydraulic presses herein.

Claims (15)

1. the valve block component with valve block, which has at least two main slide plates (8,10,12), and the main slide plate is respectively set For controlling hydraulic load (30,32,34), wherein for corresponding main slide plate (8,10,12) be assigned with pressure interface (P) and At least one working interface (A, B), and which provided two two hydraulic presses with adjustable conveying capacity (2,4), The hydraulic press is connected with corresponding pressure interface (P) respectively.
2. valve block component according to claim 1, wherein for the main slide plate at least part in its pressure interface (P) fluid flow communication is assigned with a throttle valve (14,16,18) between the hydraulic press (2,4) that is connected thereto.
3. valve block component according to claim 2, wherein for the main slide plate at least part in its pressure interface (P) the fluid flow communication arrangement one throttle valve (20,22,24) between corresponding other hydraulic press (2,4).
4. valve block component according to any one of the preceding claims, wherein between pressure interface (P) and hydraulic press (2) Fluid flow communication branch one bypass flow path (40), the bypass flow path can by adjustable shut-off valve (42) with Tank case (28) is connected, and can be throttled by the shut-off valve, and/or wherein in pressure interface (P) and in addition hydraulic One bypass flow path of fluid flow communication branch (44) between machine (4), the bypass flow path can pass through one adjustable section Only valve (46) is connected with tank case (28), and can be throttled by the shut-off valve.
5. valve block component according to any one of the preceding claims, wherein according to load, a hydraulic press is with deciding It pumps (2) and other hydraulic press is used as cumulative pump (4).
6. valve block component according to any one of the preceding claims, which provided control electronic component (48), institutes Stating control electronic component, there are a matching module (58) to pass through in the matching module for loading (30,32,34) accordingly Input unit (50,52,54) can input predetermined value (a1, a2, a3), wherein corresponding predetermined value (a1, a2, a3) passes through matching Module (58) is changing into the predetermined value (b1, b2, b3) being matched accordingly, and/or wherein, a control electronic component or described Controlling electronic component (48) has a predetermined module (62), to be converted into corresponding predetermined value (a1, a2, a3) for corresponding Load (30,32,34) volume flow predetermined amount (Q1, Q2, Q3) and/or be converted into for accordingly load (30,32,34) Load-aware information (A1, A2, A3) and/or be converted into maximum pressure (p_max_1, P_max_2, p_max_3).
7. valve block component according to claim 6, wherein the control electronic component (48) has a manipulation module (66), The manipulation module generates manipulation signal based on the predetermined amount converted, wherein being arranged to manipulation signal: for leading Pump the pump volume flow predetermined amount (Vg1, Vg2) of (2) and for the pump volume flow predetermined amount of cumulative pump (4) and/or for cutting Only valve (42,46) or total throttling predetermined amount (x_cut_2, x_cut_2) and/or use for corresponding shut-off valve (42,46) In the corresponding control amount (ai, bi) of corresponding main slide plate and/or for the corresponding control of corresponding throttle valve (14 to 24) It measures (ci, di).
8. the method for controlling valve block component (1) according to any one of the preceding claims, wherein can be by hydraulic press (2,4) conveying, for load the supply volume flow of (30,32,34) each by manipulation have adjustable conveying capacity (2, 4) hydraulic press and by manipulate adjustable main slide plate (8,10,12) and/or by manipulate at least one shut-off valve (42, 46) it can distribute to the load (30,32,34) being connected.
9. according to the method described in claim 8, supply volume flow wherein transportable, for loading (30,32,34) , respective distribution realizes additionally by adjustable throttle valve (14 to 24) is manipulated.
10. method according to claim 8 or claim 9, wherein priority is assigned in load (30 to 34) accordingly, wherein arriving The distribution of the supply volume flow of the load (30,32,34) is realized depending on the priority.
11. according to the method described in claim 10, the first load (34) has highest excellent wherein at least three loads First grade, the second load (32) is with lesser priority and third load (30) has smaller priority.
12. the method according to any one of claim 8 to 11, wherein for loading (30,32,34), phase accordingly (Q1 to Q3) can be predefined, wherein for (Q1 to Q3) points of corresponding volume flow predetermined amount for the volume flow predetermined amount answered Corresponding restriction factor (fac_pi) is matched, has been reduced in a predetermined manner when needed by the restriction factor corresponding Volume flow predetermined amount (Q1 to Q3).
13. according to the method for claim 12, wherein the control electronic component (48) is provided with one mode or more The different mode of kind, is provided with restriction factor (fac_ predetermined, for loading (30,32,34) in the mode Pi).
14. according to the method for claim 13, wherein the mode is automatically selected and/or can be swashed by operator It is living.
15. the method according to any one of claim 8 to 14, which provided: when can be defeated by other hydraulic press (2) When the supply volume flow sent no longer covers the volume flow predetermined amount of load (30,32,34) enough, use a hydraulic press (4).
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