CN110005598A - Hydraulic pressure supply mechanism - Google Patents
Hydraulic pressure supply mechanism Download PDFInfo
- Publication number
- CN110005598A CN110005598A CN201811525035.1A CN201811525035A CN110005598A CN 110005598 A CN110005598 A CN 110005598A CN 201811525035 A CN201811525035 A CN 201811525035A CN 110005598 A CN110005598 A CN 110005598A
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- Prior art keywords
- hydraulic pressure
- electronics
- process control
- control mechanism
- interface
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
- F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
- F04B49/065—Control using electricity and making use of computers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/08—Regulating by delivery pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/20—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by changing the driving speed
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B2205/00—Fluid parameters
- F04B2205/09—Flow through the pump
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B2207/00—External parameters
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Fluid-Pressure Circuits (AREA)
- Control Of Positive-Displacement Pumps (AREA)
- Control Of Electric Motors In General (AREA)
Abstract
The hydraulic pressure supply mechanism that the present invention relates to a kind of for being supplied or being manipulated to hydraulic load using hydraulic pressure medium, the hydraulic pressure supply mechanism include hydraulic pump, be arranged electric motor for being driven to the pump and setting for can be previously given revolving speed current transformer that the electric motor is manipulated.According to the present invention, the current transformer is equipped with the process control mechanism of electronics, and the process control mechanism is configured for: it is previously given because for the electric motor manipulation and pressure medium amount that the is hydraulic pressure as provided by the hydraulic pump and/or being conveyed temporal or by event control tendency.
Description
Technical field
The hydraulic pressure supply mechanism that the present invention relates to a kind of for being supplied or being manipulated to hydraulic load.
Background technique
Traditional feed mechanism, also referred to as unit are known.The applicant in title ABPAC, CytroPac or
DFE perhaps provides the hydraulic unit hydraulic unit under Sytronix to hydraulic load supply pressure medium or even
Directly manipulate hydraulic load.
10 2,015 219 091 A1 of German patent application DE of the applicant illustrates a kind of so-called compact machine
Group, for the compact unit oil vessel, by means of current transformer with carrying out variable speed by the electric motor manipulated and
Hydraulic pump constitutes a structural unit.The conveying capacity of the unit can be controlled by means of the current transformer.
10 2,008 019 501 A1 of DE illustrates a kind of device, the device by the motor of variable speed, in its conveying capacity side
Pump that face can be adjusted and the control mechanism for being associated with this device are constituted.Here, by supervisory control mechanism as target
It is worth the pressure value and transport Stream magnitude for carrying out the previously given motor/pump.It is associated with the control machine of the motor/pump
Structure controls the flow adjustment element of the pump and preparatory by means of so-called revolving speed according to these previously given target values
Point element controls the revolving speed of the electric motor.Certainly, the hydraulic feed flow exported and motor/pump dress
The pressure on output end set is determined always by the outside of the motor/pump previously given target value.Matching
Belong in the control mechanism of the motor/pump, is transported by means of the revolving speed of the variable pump and these regulated quantitys of conveying capacity
Optimization mechanism of the row for previously given target value to be adjusted.
For such unit or device, the desired service performance of the motor/pump thus so far
Largely described by supervisory control mechanism including the characteristic in fault condition and is therefore being designed and implemented
Shi Yinqi certain expense.
Summary of the invention
The task of the present invention is can more easily be integrated into hydraulic pressure supply mechanism in production equipment or machine.
The task is resolved by a kind of hydraulic pressure supply mechanism of feature according to Patent right requirement 1.
According to the present invention, illustrate a kind of for hydraulic load to be supplied or manipulated using hydraulic pressure medium
Hydraulic pressure supply mechanism, the hydraulic pressure supply mechanism include hydraulic pump, be arranged electric motor for being driven to the pump with
And setting for can be previously given revolving speed current transformer that the electric motor is manipulated.Here, the current transformer
The process control mechanism of process control mechanism equipped with electronics, the electronics is configured for: previously given because for described
The manipulation of electric motor and on the time of pressure medium amount that the is hydraulic pressure as provided by the hydraulic pump and/or being conveyed
Or tendency by event control.In this way, the simple and also more complex fortune of the hydraulic pressure supply mechanism
Row process can be provided in the hydraulic pressure supply mechanism and more specifically in institute in the case where being pre-configured
It states in the control mechanism of current transformer and is provided, the control mechanism is configured to process control mechanism according to of the invention now.In advance
The pressure tendency and/or feed flow tendency of configuration in this application be also referred to as pressure-distribution/feed flow-distribution or
Referred to as P/Q- tendency or P/Q- is distributed and is such as expressed as process procedures, the pressure tendency of the pre-configuration and/or defeated
Send flow tendency be directed to failure appearance the case where or as to the externalities for acting on the hydraulic pressure supply mechanism
Reaction is to provide.End user can such as trigger these P/Q- tendencies or these P/ by specific trigger-signal
Q- tendency is automatically run, and end user need not define in person and realize thus the characteristic of the feed mechanism.
Therefore the hydraulic pressure supply mechanism that is so equipped with can be integrated into production equipment or machine with seldom design overhead
The temporal of the pre-configuration about feed flow or pressure is independently executed in device and in operation or by event control
The tendency of system.Therefore, the expense for production equipment or machine to be designed and adjusted can be reduced significantly, because of energy
Enough employ the program of typical process previously given, for the hydraulic pressure supply mechanism.Simple process can be by described
Hydraulic pressure supply mechanism is even implemented in independent operating by means of the P/Q- tendency saved in the process control mechanism.
A kind of example of the process for pre-configuration such as can be to have previously given pressure-distribution/feed flow-
The urgent operation of distribution executes the pressure-distribution/feed flow-distribution when user manipulates emergent stopping-telegraph key.Or
Person can be after receiving commencing signal independently by the hydraulic pressure supply mechanism to operate at supervisory control mechanism
State the pressure-distribution/feed flow-distribution being pre-configured in the control mechanism of current transformer.Here, even can to boundary condition,
For example the arrival situation of the specific position of the hydraulic load is checked, and therefore can control previously given tendency
, from such as the first motion stage to the progress of the second motion stage, the tendency has such as periodically previously given
Pressure value or transport Stream magnitude.Furthermore it is possible to detect as caused by environment or the boundary condition as caused by service condition
And it is used for carrying out hydraulic pressure supply mechanism self-contr ol or for the process saved to be adjusted or is used for
It is previously given to external control to be adjusted.Therefore, such as the cold temperature of the pressure medium or for
For the pollution level of the raising of filter, the process procedures different under standard-service condition can be selected.As process
Program such as also allows for the operation for reaching the previously given slope of target value in this sense.It can be according to being mentioned
To the condition of outside change the gradient on the slope or the amplitude versus time-profile on such slope.
It is furthermore possible to consider heat engine program, pumps described in the heat engine program and passed through first with previously given conveying capacity
Pressure medium return is transported in storage tank by bypass by filter, same it can be considered that reservoir load module, in institute
It states the fill level or pressure in reservoir load module on measurement reservoir and thus sets or adjust specific pressure
Power-tendency and/or feed flow-tendency.Furthermore it is possible to consider urgent operation program as already mentioned, same energy
Enough process procedures for considering the movement for hydraulic load, the urgent operation program and the process procedures are dispersedly described
It is provided in the process control mechanism of hydraulic pressure supply mechanism in the current transformer of the hydraulic pressure supply mechanism.
The process control mechanism is also it is contemplated that the component of the hydraulic pressure supply mechanism, that is, the current transformer
Power component, electric motor, pump, container, cooler when necessary heat budget, and therefore within previously given process or
Person is to be starting point such as to slope or conveying capacity and pressure, together namely to institute in external previously given target value
The provided power for stating hydraulic pressure supply mechanism is adjusted.
Of the invention is advantageously improved the theme that scheme is dependent claims.It is considered as particularly advantageously, the change
The process control mechanism of the electronic circuit and the electronics that flow device is arranged in the same housing, and the especially described unsteady flow utensil
There is a microcontroller, the microcontroller is additional to traditional current transformer control module by means of that can execute above it
Program represents the process control mechanism for the electronics being previously mentioned, and traditional current transformer control module is preparatory by means of target value
It gives to manipulate the power component of the current transformer.In this way, traditionally depositing the microcontroller originally
Resource be optimally used for the purpose of the present invention.It is preferred that the process control mechanism of the electronics is configured to freely program
, process control mechanism with NC and/or SPS function.It therefore can be in a simple manner to temporal or by event
The process of control is described and programs, and can carry out checking and according to the boundary condition to previously given to boundary condition
Process modify.
Preferably, the process control mechanism of the electronics has the first interface towards bus system, and especially logical
Supervisory control mechanism can be connected by crossing the bus system, for configuring the process control mechanism by simple mode
And make its response.
It is preferred that being provided in the process control mechanism of the electronics pre- for being carried out to the temporal tendency being previously mentioned
First given process procedures, and it is then preferred that the process control mechanism of the electronics is so set up, so that passing through described first
Interface can be inputted and/or be read and/or change the process procedures itself and/or the ginseng of the process procedures
Number.
It is also advantageous that the process control mechanism of the electronics has second interface, and the electronics is excessively program-controlled
Mechanism processed is configured for: being received in the second interface and is executed the process procedures being previously mentioned or described after trigger signal
The previously given part of process procedures.It then can be according to the process procedures by user or automatically by supervisory control
Mechanism processed comes on the triggered time or by event control pressure tendency and/or feed flow tendency.This second interface with
And interface disclosed below can be a part of first bus interface certainly.Having for disposably triggering is temporal
Or also often need not be again monitored at all by the pressure tendency of event control and/or the process of feed flow tendency, and
It is according to the process procedures independently by the process control mechanism as P- and/or Q- target value or P-/Q- target value
Tendency is come previously given and is executed by the current transformer by means of the current transformer control module and the power component.Only
Only in fault condition, supervisory control mechanism can obtain information from the current transformer and must carry out protection when necessary
Intervention.A kind of example of the trigger signal for being generated by user can be the switching signal of telegraph key, pass through the switch
Signal such as causes the process procedures of the emergent stopping for the hydraulic pressure supply mechanism or the hydraulic load, Huo Zhetong
The switching signal is crossed to start previously given process procedures, the process procedures have previously given pressure tendency/defeated
Send flow tendency or with it is a series of it is successively running, when necessary by event control continued conversion pressure/feed flow
The tendency stage.
It is furthermore preferred that the process control mechanism of the electronics has third interface, the third interface is set up use
In: position signal and/or speed signal are received from hydraulic load, and the process control mechanism of the electronics is set up use
In: in the case where considering the position signal and/or speed signal according to previously given adjustment criteria or judgement mark
Standard carrys out previously given temporal tendency being previously mentioned, such as being expressed as process procedures.It therefore, such as can be in process procedures
It is middle to be realized according to the position of the load from first pressure/feed flow tendency stage to second pressure/feed flow tendency
Stage continues to convert.Therefore, for example the speed reduction depending on position of the load can pass through the hydraulic pump
Corresponding feed flow reduces analogously to execute with backstop buffering in the case where facilitating.Alternatively, such as being clamped in manipulation
It is converted to from the removal process of feed motion, namely cylinder carried out with previously given feed flow with previously given when cylinder
Pressure clamping-stage.Then, worker can by telegraph key or supervisory control mechanism by trigger come previously given
The end of the clamping phase, followed by drawback movement, that is, the cylinder is carried out with previously given feed flow
Migration process, until reach open position.
Furthermore it is advantageous that the process control mechanism of the electronics has the 4th interface, the 4th interface is set up use
In: receive the status signal of the hydraulic pump and/or electric motor and/or current transformer, and the process controller of the electronics
Structure is configured for: in view of on the 4th interface being previously mentioned institute received status signal in the case where according to previously given
Criterion come previously given temporal or by event control the tendency being previously mentioned.It therefore, such as can will be described
Accelerator in pressure and/or feed flow tendency is designed more gentle, or can will come from described to reach
The control mechanism of grade or target value from the process control mechanism is previously given and the slope that runs be designed it is steeper or
Person is less steep.For example can have the sensor of the temperature for the electric motor, pump, current transformer, the sensor is corresponding
Ground generates status signal and delivers this to the 5th interface.Described current transformer itself can generate negative about the heat of the motor
The signal of lotus, this equally should belong to this concept of status signal.It can there are vibrating sensor, the vibrations on the pump
Sensor is shown air pocket state or can be detected the pressure or described on the suction attachment of the pump by means of sensor
Pressure on the pressure medium output end of pump and the 4th interface is conveyed to as status signal.
It is furthermore preferred that in having the hydraulic pressure supply mechanism for the container of hydraulic pressure medium, there are following biographies
Sensor, the sensor is arranged for generating the container, the hydraulic pressure medium in the container or is associated with
The cooling body of the container or the status signal of filter mechanism, wherein the process control mechanism of the electronics has the 5th to connect
Mouthful, the 5th interface is connected with the sensor, and wherein the process control mechanism of the electronics is configured for:
In view of on the 5th interface being previously mentioned received status signal in the case where according to previously given criterion come pre-
First give temporal or by event control the tendency being previously mentioned.In this way, in conjunction with the hydraulic pump and/or
Situation described in the status signal of electric motor and/or current transformer is similar, can otherwise the pressure of economical operation and/or defeated
It send flow tendency or runs the pressure made full use of to the power specification of the hydraulic pressure supply mechanism under rated condition
And/or feed flow tendency.Such as can have in the pressure medium in oil temperature, fill level, container gas load,
The sensor of vibration, chiller temperature, filter dynamic head, filter contamination degree etc., the sensor correspondingly generate
Status signal and deliver this to the 5th interface.The sensor being previously mentioned in these sensors or paragraph in front
Signal also can be used in manipulating the specific sons of previously given process procedures or selection and implementation procedure program certainly
Program.
All sensors noted earlier also can be coupled to institute by the bus by means of bus coupler certainly
It states in process control mechanism and is in communication with.Then corresponding sensor interface is the bus of the process control mechanism
The component part of interface.
Detailed description of the invention
Unique attached drawing shows a kind of embodiment by hydraulic pressure supply mechanism of the invention.
Specific embodiment
It is hydraulic come what is constituted as unit or compact unit or as the pressure medium source that can control according to attached drawing
Feed mechanism 1 is equipped with hydraulic pump 12, and which is conveyed to pressure medium by hydraulic pipeline-and it is symbolic herein
Ground shown by valve 36-hydraulic route 3 or be delivered directly to hydraulic load, cylinder 10.In addition, the hydraulic pressure supply
Mechanism can have reservoir 54, which provides pressure medium.The pump 12 is driven by electric motor 14.By current transformer
16 supply electric current to the electric motor 14.For this purpose, the current transformer 16 3 phase alternating current connectors and 14 phase of electric motor
Connection.The current transformer 16 possesses the control mechanism of power component 17 and electronics, and the control mechanism of the electronics is according to this hair
The bright process control mechanism 18 or the control mechanism of the electronics of being configured to includes for realizing the module of process control mechanism 18.
The control mechanism 18 of the electronics is realized mainly by means of microcontroller 20.The microcontroller 20 possesses
Microprocessor, for the memory and the interface of itself of data and program.By means of these interfaces, the microcontroller 20
With the number of the current transformer or simulation input terminal and output end, as such as bus interface 22 and simulation or several
The sensor connector 30,31,32,33 of word is connected.In addition, the microcontroller 20 manipulates the change by means of its interface
Flow device 16 power component 17, with for realizing the electric motor 14 revolving speed or torque it is previously given.
Program or program module are provided in the microcontroller 20: current transformer control module 19' is used for using
Revolving speed-or torque-target value through mentioning are previously given to manipulate the power component 17.It is capable of providing program module, it should
Program module realizes the adjuster 19'' for being used for hydraulic parameter.It can be the previously given pressure target value of this adjuster 19''
Either feed flow target value perhaps the two parameters and the adjuster 19'' by corresponding revolving speed-or torque-adjusting
Value is sent to the current transformer control module 19', for setting required hydraulic regulated quantity.It is practical required for thus
It is worth by corresponding sensor, such as by pressure sensor 12'' or by speed probe 14'' or by displacement sensor 10'
To obtain and send to the adjuster 19''.
Furthermore there is program module, which realizes process control mechanism 18.The process control mechanism 18
Be configured for: implementation procedure program, the process procedures such as meet the standard EN 61131-3 for NC SPS program
Or IEC 61131-3.Process procedures can be with programming language, such as instruction catalogue, Function Block Diagram, sequential function chart and structuring
Text encodes.Furthermore it is possible to realize the task of free-running operation, as such as application 10 2,009 055 752 A1 of DE in
Described such non-blocked execution, for especially being generated as in motion control mechanism or interior pushing away target
Value-tendency.It is performed in particular by means of the process control mechanism 18 and by means of the process control mechanism 18
Process procedures, it should can describe that previously given for revolving speed, feed flow is previously given or previously given for pressure-
Temporal target value-tendency and deliver this to the adjuster 19'' or current transformer control module 19'.It should
Pressure-and the previously given value of feed flow-individually or are also conveyed to the adjusting to (P, Q) together as numerical value respectively
Device 19''.As an alternative or additional project, it should can be by means of the flow control mechanism 18 by event control
In the case where trigger target value-tendency, the output P/Q- previously given in the process procedures of just described type
Tendency is adjusted previously given tendency or walks to by the obtained target value of supervisory control mechanism or target value
Gesture is adjusted." target value tendency " this concept also should include target value slope, and the target value slope is by the process
Control mechanism 18 is described because the target value from the supervisory control mechanism is obtained.
It, first should be to hydraulic in attached drawing before the function to the process control mechanism 18 inquire into detail
The other element of route explains.As described, pressure medium is transported in hydraulic circuit by the pump 12, institute
Stating hydraulic circuit can include hydraulic reservoir 54 and diversified hydraulic valve, only symbolically pass through valve 36 here
To show.Additionally, there are hydraulic loads, are cylinder 10 here, the hydraulic load is by means of pumping 12 pressures conveyed by described
Power media drives.The pressure medium led back to by the cylinder 10 can be by flowing back before being returned in hydraulic container 40 at it
It filter 52 and is sent as necessary by cooler 50.The current transformer 16 is together with its process control mechanism 18 and its miniature control
Device 20 processed is connected by field-bus interface 22 with fieldbus 24.Additionally, there are supervisory control mechanism 26, the higher levels
Control mechanism the current transformer 16 can be manipulated by the fieldbus 24.According to this embodiment, while making
It is provided with different sensors for alternative solution, the sensor is connected on corresponding interface 30,31,32,33.Certainly,
The sensor can be also connected on the fieldbus 24 by means of field bus coupler.Just mentioned interface
30-33 is then realized as a part of live interface 22.Suction pressure sensor 12' can be set on the pump 12,
Pressure in suction attachment described in the suction pressure sensor measurement.In addition, can have pressure sensor on the output
12'', the pressure for the pressure medium that pressure sensor measurement is conveyed by the pump 12.Furthermore it is possible to install temperature on the pump
Spend sensor 12''' and vibrating sensor 12''''.Temperature sensor 14' can be set on the electric motor and revolving speed passes
Sensor 14''.The power component 17 of the current transformer 16 itself can be equipped with (unshowned) temperature sensor.The cooler
50 can be equipped with temperature sensor 50'.The filter 52 can have to carry out for the pollution level to the filter 52
The sensor 52' of detection.This sensor 52' can measure the dirt according to the dynamic head loaded on the filter 52
Dye degree.The container 40 can be equipped with temperature sensor 42, filling level sensor 44 and for pressure medium quality into
The sensor 46 of row detection.This sensor 46 such as can be constituted so, so that it measures pressure medium, is usually mineral oil
Water content or gas content.Pressure sensor 54' can be set on the hydraulic reservoir 54, also can when necessary
Filling level sensor or leakproofness sensor are set.As already mentioned, the cylinder 10 can be equipped with displacement sensing
Device 10'.It is furthermore possible to setting telegraph key 38, and the telegraph key can be connected with the current transformer, with for can be by using
Person come artificially generate trigger signal or control signal.As mentioned, these sensors, simply by the presence of just in signal
Technically it is connected with the input terminal 30-33 of the current transformer 16 or process control mechanism 18.In the accompanying drawings, this passes through line
Come show or the lines by being terminated with dotted line sketch out come.It can be corresponding as being used for using the measured value of the sensor
The actual value of regulated quantity be conveyed to the adjuster 19''.The measured value of these sensors can be equally conveyed to described
Process control mechanism 18, and the measured value be then used for target value caused by the process control mechanism 18 in advance to
Surely be modified or the measured value in the process procedures selection target value the specific previously given time
On tendency and exported by the process control mechanism 18 to the adjuster 19'' or the current transformer control module
19'.Equally, can be used in the process procedures selecting and exporting institute by trigger signal caused by the telegraph key 38
State the specific temporal tendency of P-, Q- or (P, Q)-target value.The measured value of some sensors can also be considered as shape
State signal, the status signal show component, such as power component 17, motor 14, pump 12, filter 52, reservoir 54, container
40 or the pressure medium in it state.Furthermore it is possible to detect for environmental condition, such as local temperature or
The measured value of vibration, and the current transformer 16 or the process control mechanism 18 are transferred to by the sensor.
The supervisory control mechanism 26, which can be that the current transformer 16 is previously given by the fieldbus 24, to be used for
Pressure medium-feed flow target value the Q provided by the hydraulic pressure supply mechanism 1 is providedTargetOr the mesh for the pressure
Scale value PTarget.In addition, process procedures can be input to by this method in the memory of the microcontroller 20.Equally
Process procedures, selection can be adjusted and start, delete or edit part therein.
The hydraulic pressure supply mechanism 1 with process control mechanism 18 is carried out by means of a kind of example below
It explains.
Program is provided and executed in the microcontroller 20 of the current transformer 16, and described program realizes process controller
Structure 18.The first process journey of the period of motion for the hydraulic cylinder 10 is saved in the memory of the microcontroller 20
Sequence, first process procedures have the inventory of path point and speed, it should these path points are reached with the speed.This
Outside, for specific path point come the hydraulic pressure in the previously given cylinder.Such period of motion can such as be used in liquid
In the clamping device of pressure.
User presses the telegraph key 38 and thus generates trigger signal, is connect by the process control mechanism 18 described
The trigger signal is received at mouth 30.As the reaction to the trigger signal, start institute in the process control mechanism 18
State process procedures.Then generate feed flow-target value QTargetAnd the adjuster 19'' is outputed it to, so that the change
Stream device control module 19' obtains corresponding revolving speed-regulated value and the pump 12 to the 10 supply pressure medium of cylinder and makes
It is moved towards the direction of first path point.Here, institute's displacement sensors 10 constantly transmit the current position of the cylinder
To the process control mechanism 18.If reaching the position of the first path point, the process procedures are shifted to
In second motion stage and feed flow-target value is generated, the feed flow-target value is used in this way such as
The second path point is reached with the speed slowed down.If reaching second path point, such as given in advance in the phase III
Constant-pressure-target value PTarget.Then, the adjuster 19'' manipulates the current transformer control module 19' with revolving speed-regulated value,
With for the sensor 12'' measure or on the hydraulic cylinder 10 measure in the case where it is described pump 12 output
Previously given pressure is set at end.After the specific, time previously given in the process procedures or from institute
It states after obtaining continuing conversion signal at supervisory control mechanism 26, the process procedures are for causing following result, it may be assumed that the
Third path point is reached in four stages, with the drawback movement for executing the cylinder 10, method is: and generate corresponding transport Stream
Amount-target value.If the direction of rotation of the pump 12 can be changed, it can generate and be born for the drawback movement of the cylinder 10
Feed flow-target value.However, it is also possible to generate turn for direction valve, such as valve 36 by the process control mechanism 18
Change signal, with for it is described pump 12 identical conveying direction come the direction of motion for the cylinder 10 of turning round.
Also it can be considered that the second process procedures, the second process procedures control reservoir load.For this purpose, by the process
Control mechanism 18 detects fill level signal on the reservoir 54 with sensor 54' or pressure signal and by institute
Process procedures are stated to test and assess to it.In principle, this process procedures being capable of previously given desired reservoir loading pressure.
This process procedures can extraly previously given feed flow-characteristic curve, come by means of the feed flow-characteristic curve
Most preferably, with namely such as having efficiency as far as possible or as soon as possible or as far as possible with saving material, especially in no pressure
Reach desired reservoir in the case where overshoot in actual value and loads pressure.
Possible third process procedures can control after manipulation with the comparable emergent stopping telegraph key of the telegraph key 38
Characteristic.This process procedures can provide, provided in the specific time by the pump 12 previously given pressure and
Then the previously given value of the pressure-and the previously given value of the feed flow-are arranged to 0.In addition, institute hereafter can be cut off
State power component 17.
Possible 4th process procedures can control the characteristic of the hydraulic pressure supply mechanism 1 under certain environmental conditions.
It therefore, such as can be according to measured temperature or according to measured vibration or when suction pressure is too low to pressure-
Target value-slope or feed flow-target value-slope gradient are adjusted.Here, can be for supervisory control mechanism
The 26 previously given P of pressure-Target valueTargetOr the previously given Q of feed flow-target valueTargetOr in order to by described excessively program-controlled
Target value caused by other process procedures of mechanism 18 processed and the slope is generated by the process control mechanism 18.It can
Can the 5th process procedures can include pressure medium or according to described according to the state of the component of the hydraulic pressure supply mechanism 1
The state of the other component of hydraulic route controls or adjusts the characteristic of the hydraulic pressure supply mechanism.Therefore, Neng Gougen
According to reduction feed flow-target when filter-pollution signal of the filter 52 or the low oil level in the container 40
It is worth previously given QTargetMaximum allowable numerical value.Also it can adjust, especially reduce according to the temperature on the cooler 50
The feed flow-target value QTarget.It is on the motor 14, described to pump mentioning for the pressure medium on 12, described containers 40
High temperature also can be for previously given to the feed flow-target value and/or the pressure-Target value to be previously given
PTargetThe motivation that is adjusted of maximum allowable numerical value.Then basis is described most for corresponding subprogram in the process procedures
Big value-is previously given to limit the target value obtained from the supervisory control mechanism 26 or from other process procedures
Obtained target value.The current transformer control module 19' can also calculate the electric motor 14 according to the model of physics
Thermic load and the hydraulic parameter, i.e. pressure or defeated is reduced or limited when reaching or close to thermal loading limit value
Send the previously given value of flow.If the sensor 46 finds gas load or the raising of the raising in the pressure medium
Water content, then this process procedures can also connect degasser or dewatering device (not shown), and in the meantime
Limit the pressure-Target value or feed flow-target value.
A kind of hydraulic pressure supply mechanism packet for being supplied or being manipulated to hydraulic load using hydraulic pressure medium
Include hydraulic pump, electric motor for being driven to the pump is set and setting for can be previously given revolving speed pair
The current transformer that the electric motor is manipulated.According to the present invention, the current transformer is equipped with the process control mechanism of electronics, described
The process control mechanism of electronics is configured for: it is previously given because for the electric motor manipulation and by the hydraulic pump
Temporal or by event control the tendency of provided hydraulic pressure and/or the pressure medium amount conveyed.
The easy and also more complex operational process of the hydraulic pressure supply mechanism can be pre-configured as a result,
In the case of provided in the hydraulic pressure supply mechanism and more specifically given in the control mechanism of the current transformer
It provides, the control mechanism is configured to process control mechanism by of the invention now.Therefore, it can significantly reduce for equipment
Or the expense that machine is designed and adjusts, because the pre- of the typical process for the hydraulic pressure supply mechanism can be employed
First given program.The simple process of load in the machine can be by the hydraulic pressure supply mechanism even in independent fortune
Implement in row.
Reference signs list:
1 hydraulic pressure supply mechanism
3 hydraulic routes
10 hydraulic loads
Displacement sensor in hydraulic load described in 10'
12 pumps
12' suction pressure sensor
12'' pressure sensor output
12''' temperature sensor
12'''' vibrating sensor
14 electric motors
14' temperature sensor
14'' speed probe
16 current transformers
17 power components
18 process control mechanisms
19' current transformer control module
19'' adjustor module
20 microcontrollers
22 bus interface
24 fieldbus
26 supervisory control mechanisms
The interface of 30 triggers
The interface of 31 cylinder displacement sensors
The interface of the status signal of 32 motors or pump
The interface of the status signal of 33 containers and other signal
36 valves
38 telegraph keys
40 containers
42 temperature sensors
44 filling level sensors
46 pressure medium mass sensors
50 cooling bodies
50' temperature sensor
52 filters
52' contaminant sensor, dynamic head sensor
54 pressure medium reservoirs
Sensor on 54' pressure medium reservoir.
Claims (10)
1. the hydraulic pressure supply mechanism for hydraulic load (10) to be supplied or manipulated using hydraulic pressure medium, described
Hydraulic pressure supply mechanism includes the electric motor (14) and setting of hydraulic pump (12), setting for being driven to the pump (12)
For with can be previously given revolving speed current transformer (16) that the electric motor (14) is manipulated,
It is characterized in that,
The current transformer (16) is equipped with the process control mechanism (18) of electronics, and the process control mechanism of the electronics is set up use
In: it is previously given because for the electric motor (14) manipulation and the hydraulic pressure as provided by the hydraulic pump (12)
And/or temporal or by event control the tendency of the pressure medium amount conveyed.
2. hydraulic pressure supply mechanism according to claim 1, which is characterized in that the route of the electronics of the current transformer (16) (17,
19', 19'') and the electronics process control mechanism (18) setting in the same housing.
3. hydraulic pressure supply mechanism as described in claim 1 or 2, which is characterized in that the current transformer (16) has miniature control
Device (20), the microcontroller represent the process control for the electronics being previously mentioned by means of the program that can be executed above it
Mechanism (18).
4. hydraulic pressure supply mechanism as any one of preceding claims, which is characterized in that the process control of the electronics
Mechanism (18) is configured to process control mechanism freely program, with NC and/or SPS function.
5. hydraulic pressure supply mechanism as any one of preceding claims, which is characterized in that the process control of the electronics
Mechanism (18) has a first interface (22) towards bus system (24), and more particularly to by the bus system (24) and
Supervisory control mechanism (26) is connected.
6. hydraulic pressure supply mechanism as described in claim 5, which is characterized in that in the process control mechanism (18) of the electronics
It provides for carrying out previously given process procedures to the temporal tendency being previously mentioned, and especially true sets up the electronics
Process control mechanism (18) so that can input and/or read and/or change by the first interface (22)
The parameter of described process procedures itself and/or the process procedures.
7. hydraulic pressure supply mechanism according to claim 6, which is characterized in that the process control mechanism (18) of the electronics has
Second interface (30), and the process control mechanism (18) of the electronics is configured for: it is received on the second interface (30)
Execute the previously given part of the process procedures or the process procedures that are previously mentioned later to trigger signal.
8. hydraulic pressure supply mechanism as any one of preceding claims, which is characterized in that the process control of the electronics
Mechanism (18) has third interface (31), and the third interface is configured for: position signal is received at hydraulic load (10)
And/or speed signal, and the process control mechanism (18) of the electronics is configured for: considering the position signal
And/or in the case where speed signal according to previously given adjustment criteria or criterion come the previously given time being previously mentioned
On or tendency by event control.
9. hydraulic pressure supply mechanism as any one of preceding claims, which is characterized in that the process control of the electronics
Mechanism (18) has the 4th interface (32), and the 4th interface is configured for: receiving the hydraulic pump and/or electric motor
And/or the status signal of current transformer, and the process control mechanism of the electronics is configured for: in view of being previously mentioned
On 4th interface (32) be previously mentioned according to previously given criterion come previously given in the case where received status signal
Temporal or by event control tendency.
10. hydraulic pressure supply mechanism as any one of preceding claims, furthermore the hydraulic pressure supply mechanism includes being used for
The container (40) of hydraulic pressure medium, the container are connected with the suction attachment of the pump (12), which is characterized in that exist
Following sensors (42,44,46,50', 52'), the sensor setting is for generating the container (40), being in the container
(40) hydraulic pressure medium in or the cooling body (50) or filter mechanism (52) for being associated with the container (40)
The process control mechanism (18) of status signal, the electronics has the 5th interface (33), the 5th interface and the sensor
(42,44,46,50', 52') are connected, and the process control mechanism (18) of the electronics is configured for: considering
On the 5th interface (33) being previously mentioned in the case where received status signal according to previously given criterion come in advance to
Surely temporal or by event control the tendency being previously mentioned.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102017222761.3 | 2017-12-14 | ||
| DE102017222761.3A DE102017222761A1 (en) | 2017-12-14 | 2017-12-14 | Hydraulic supply device |
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| Publication Number | Publication Date |
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| CN110005598A true CN110005598A (en) | 2019-07-12 |
| CN110005598B CN110005598B (en) | 2023-01-13 |
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| CN201811525035.1A Active CN110005598B (en) | 2017-12-14 | 2018-12-13 | Hydraulic pressure supply mechanism |
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| CN (1) | CN110005598B (en) |
| DE (1) | DE102017222761A1 (en) |
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| DE102022205289A1 (en) * | 2022-05-25 | 2023-11-30 | Robert Bosch Gesellschaft mit beschränkter Haftung | Hydraulic device with status display |
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| DE102015219091A1 (en) | 2015-10-02 | 2017-04-06 | Robert Bosch Gmbh | Electrohydraulic compact unit |
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| Publication number | Publication date |
|---|---|
| DE102017222761A1 (en) | 2019-06-19 |
| CN110005598B (en) | 2023-01-13 |
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